RE: Buchanan Mine #1, MSHA ID , VA DMME ID 11912AC VENTILATION AND DUST CONTROL PLAN

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1 Buchanan Minerals, LLC Buchanan Mine #1 P.O. Drawer L Oakwood, Virginia Phone: (276) Fax: (276) dannyatwell@consolenergy.com March 16, 2016 Clayton E. Sparks, District Manager Mine Safety and Health Administration PO Box 560 Norton, VA RE: Buchanan Mine #1, MSHA ID , VA DMME ID 11912AC VENTILATION AND DUST CONTROL PLAN Dear Mr. Sparks: Please find the attached complete Ventilation and Dust Control Plan for Buchanan No. 1 Mine. Should you require additional information or have any questions, please contact me. Sincerely, Danny Atwell General Superintendent

2 BUCHANAN MINERALS, LLC BUCHANAN NO.1 MINE VENTILATION & DUST CONTROL PLAN APRIL 1, 2016 ID VA MI 11912AC Contents GENERAL... 1 WALL OF WATER INSTALLATION... 8 FIRE SUPPRESSION SYSTEM SKETCH FIRE SUPPRESSION SYSTEM SKETCH FIRE SUPPRESSION SYSTEM SKETCH FIRE SUPPRESSION SYSTEM SKETCH TYPICAL FIRE SUPPRESSION SYSTEM CROSS SECTION VIEWS GLOBE, QUICK RESPONSE, HIGH PRESSURE SPRINKLER CUT SHEET SPECIFICATIONS, GLOBE, QUICK RESPONSE, HIGH PRESSURE SPRINKLER CUT SHEET SPECIFICATIONS, CONTINUOUS MINER VENT SCHEMATICS LEGEND TYPICAL CUT SEQUENCES TYPICAL FACE VENTILATION USING EXHAUST CURTAIN TYPICAL MAINS VENTILATION USING EXHAUST CURTAIN TYPICAL VENTILATION USING BLOWING FAN AND TUBING TYPICAL VENTILATION USING BLOWING FANS AND TUBING TYPICAL VENTILATION USING EXHAUST FAN(S) AND TUBING EXHAUST FAN USED TO VENTILATE SINGLE HEADING TYPICAL FACE VENTILATION USING CURTAIN & BLOWING FAN TYPICAL FACE VENTILATION, BOLTING TYPICAL CUT THROUGH OF BLEEDER ENTRIES TYPICAL CUT THROUGH OF SECTION INTO BLEEDER ENTRIES TYPICAL ALTERNATE CUT THROUGH OF SECTION INTO BLEEDER ENTRIES... 37

3 TYPICAL CUT THROUGH IN BLEEDERS WHEN NO SET UP ENTRIES MINED TYPICAL CUT THROUGH OF LONGWALL SET UP FACES TYPICAL SET UP FACE ON INTAKE MINING INTERMEDIATE LW SET UP ENTRIES ALTERNATE MINING INTERMEDIATE LW SET UP ENTRIES ALTERNATE MINING INTERMEDIATE LW SET UP ENTRIES AFTER BLEEDERS LONGWALL SET UP VENTILATION WHILE MINING BLEEDERS USING AUXILIARY FAN WHILE MINING BLEEDERS LONGWALL TYPICAL VENTILATION LONGWALL INSTALLATION TYPICAL VENTILATION LONGWALL REMOVAL TYPICAL VENTILATION OPERATING LONGWALL ALTERNATE TYPICAL VENTILATION OPERATING LONGWALL TYPICAL ESCAPEWAY CONFIGURATION OPERATING LONGWALL BLEEDER SYSTEM METHANE DRAINAGE SYSTEM VERTICAL DEGASIFICATION WELLS TYPICAL METHANE PRODUCTION HOLE / UNDERGROUND PIPE LINE SPRAY INFORMATION TABLE DESIGNATED AREA PLAN MMU DUST CONTROL SKETCHES... 65

4 Buchanan Mine Ventilation & Dust Control Plan General Information GENERAL A. Drawings included in this plan may be rotated or reflected to fit various layout arrangements as long as the relative location and effect remain the same. Stopping s and ventilation controls shown on typical drawings are not limited to the specified location as long as the effect of the alternate arrangement is the same. B. Air velocity measured with a manometer and a pitot tube, for the purpose this plan, will be calculated by the formula, , C. POLYURETHANE GROUT SAFETY PRECAUTIONS AND GUIDELINES The following safety precautions will be complied with in the application of polyurethane grout. These safety precautions do not permit the spraying of polyurethane. If spraying of the material is required, prior approval shall be obtained from the District Manager of MSHA. 1. Notification of Use Miners who may be affected shall be notified of the storage, use or transport of polyurethane materials in the mine prior to the components or application equipment being moved into the mine. 2. Storage a) Polyurethane chemical components are classified by the National Fire Protection Association as Class III B combustible liquids. Accordingly they shall be stored in tightly closed containers, as supplied by the manufacturer, and handled in accordance with the manufacturer s specifications. b) Long term underground storage areas for polyurethane components shall be constructed of fireproof materials and have firefighting equipment available commensurate with the maximum amount of material to be stored. As a minimum, this shall include 2 portable fire extinguishers and 240 pounds of rock dust. This firefighting equipment is in addition to the firefighting equipment required by 30 CFR Section c) The maximum quantity underground shall be limited to normally no more than a one week supply, and the maximum quantity at an application site shall be limited to an amount sufficient for use in a 24 hour period. Unused polyurethane material shall be promptly returned to either a suitable designated underground or surface storage area, normally within 24 hours of the end of the application. 3. Pumping Of Polyurethane a) When polyurethane is being transferred or applied by pressure pumping, the following minimum requirements will be met: i. Pumping equipment will be provided with a bypass circuit that returns back to the system. ii. All fittings and connections shall be rated for the working pressure of the pumping equipment to be used and have a safety factor of at least four times the maximum rated pressure of the pumping equipment. iii. All hoses will have a burst rating of at least 4 times the maximum rated pressure of the pumping system. iv. Polyurethane pumping operator will have the responsibility for visually inspecting the pressurized system for any sign of leakage. Prior to any pumping the operator will check all fittings and connections on the pumping system for tightness. v. All personnel at the application site will be instructed that when a leak is detected, the system will be immediately repaired. ID MI 11912AC pg. 1

5 Buchanan Mine Ventilation & Dust Control Plan General Information vi. A person will be designated to monitor the polyurethane pumping operation and in case of a leak in the pumping system, he shall immediately notify any miners working in a downwind zone, to immediately remove themselves to a point outby the application site. The downwind zone shall be defined as a distance that is 3 times the air velocity at the application site. Example: If the velocity is 150 feet per minute, 3 times 150 = 450 feet. b) Personal Protective Gear i. All persons engaged in the application of polyurethane material will be required to wear personal protective clothing consisting of either chemical goggles, eyeglasses with side shields or face shields, and protective gloves, and body coverings. Protective gloves shall be of a material providing protection from the polyurethane components. Body coverings may include long sleeve shirts and full length pants. ii. The application and pump site will be within a distance that can be signaled by a cap lamp or telephone communication will be installed. c) Ventilation i. Long term underground storage areas where the chemicals are opened and exposed to the atmosphere shall be ventilated away from any active working sections. ii. All work with components (transfer and injection sites) shall be conducted in areas with adequate ventilation (perceptible air movement) d) Spills If at all possible, spills of the isocyanine components of polyurethane will be cleaned up immediately. Spilled material will be covered with rock dust, coal fines, sawdust, vermiculite, or other absorbent material. The absorbed material then will be shoveled into an open container and a neutralizing solution (water with 2-5 percent ammonia) added to equal or greater volume than the spilled material. The container should be left standing open for 24 to 48 hours and then disposed of in accordance with applicable laws. If the spill is in an underground mine and will be inaccessible to miners within 24 hours after the time of the spill, the material does not have to be removed, provided, the spilled material is covered with the proper absorbent and the neutralizing solution is used as stated above. e) Disposal Empty polyurethane containers will be returned to the manufacturer or distributor of those materials for proper disposal. Empty containers will be re-capped at the injection site before transport to the surface. Excess material on the outside of the container will be wiped off. The containers will be transported to the surface and will be picked up by the manufacturer or supplier within a week of completion of the polyurethane injection project. f) Training All persons working directly in the application of polyurethane, transporting or handling polyurethane containers or application equipment will be trained in the approved plan requirements, hazards, safety precautions, and manufacturer s data which will, at a minimum, include all data included in the MSDS for all the components being used. This training will be provided in accordance with the requirements of Title 30 CFR Section 48.7 (a) (4). ID MI 11912AC pg. 2

6 Buchanan Mine Ventilation & Dust Control Plan General Information D. POLYURETHANE SEALANT SAFETY PRECAUTIONS AND GUIDELINES The following safety precautions will be complied with in the application of polyurethane sealant for ventilation structures and for the repairs of cracks in concrete or rock. 1. Manufacturers The following list of Manufacturers products may be used to seal holes and leaks in overcasts and stoppings: a) TOUCH N SEAL Mine Block Mortar b) FOAM O PRODUCTS Silent Seal 2. Application a) The use of this system will be limited to non spraying applications to mine ventilation structures. The applicator will be maintained within 24 inches of the structure during the application process. b) Persons applying the product will wear gloves, and eye protection. c) Material overlaps onto the mine coal roof or coal ribs will be limited to 12 inches. d) Open flames and high heat sources will be kept at least 50 feet from the areas where the system is being applied. e) Adequate ventilation will be maintained at the application site. 3. Storage a) Surface Storage - The system will be stored in the warehouse or supply shed away from heat source and not in direct sunlight. b) Temporary Underground Storage - Normally, the system is taken into the mine, used, and brought to the surface at the end of the shift for outside storage or disposal. However, the system may be temporarily stored underground if not empty. When kept underground, the system will be stored in an area to insure that the cylinders will not become damaged by mobile equipment. If 5 or more containers are stored underground together in an area, they will be stored in a fire proof enclosure or adequate fire protection shall be provided (1 fire extinguisher or 5 bags of rock dust). c) Emptied polyurethane foam containers will not be allowed to accumulate underground and will be taken to the surface for disposal. 4. Handling and Transportation The packaging of the system will remain intact at all times and not opened or exposed to the atmosphere until such time it is readied for use. To avoid damage to the system or puncturing of the containers, care will be exercised when transporting. The system will be placed on mobile equipment away from sources of heat or friction and in such a manner that it will not become damaged due to falling off or struck by other material being transported. 5. Accidental release or spill Accidental release or spill will be handled in accordance with the MSDS (Manufacturer s Material Safety Data Sheet). 6. Disposal The system will be disposed of on the surface of the mine and in accordance with the manufacture's recommendations and local requirements. 7. Training All persons working with or transporting the Polyurethane will be trained on the plan requirements stated above. ID MI 11912AC pg. 3

7 Buchanan Mine Ventilation & Dust Control Plan General Information E. Main mine fans will be continuously operated except for fan maintenance, required fan tests, and unplanned outages due to outside causes. If a main mine fan(s) stoppage greater in duration than 15 minutes occurs, the fan(s) shall operate for a period of time equal to that of the stoppage, up to a maximum of two (2) hours, prior to certified examiners entering the mine. (See Attached Shaft Listing - page 16) F. At least one (1) venturi, fan or equivalent water spray operating at 50 psi shall be maintained at each belt conveyor transfer point with the exception of the Grassy Creek bunker tripper belt. Belt scrapers shall be used at all belt drives and tailpieces. A hydraulic atomizing spray operating at 50 psi may be used at the Production Belt Conveyor transfer point in lieu of a venturi or fan spray. G. At least two sprays, with at least one spray operating; will be maintained where coal is dumped on the tail piece from the section feeder with a minimum pressure of 20 psi. These sprays will be activated by coal movement in the feeder or on the belt. For DA (26 RIGHT section), a single spray will be maintained between the belts. H. Adequate ventilation shall be provided to maintain methane levels at or below allowable limits along haulage ways and belt conveyors. I. Water sprays lists will be kept on each section of the types in use on that section. The list shall include the manufacturer s specifications for each type of spray. (See Attached Spray Information Table - page 62) J. Air readings to determine the ratio of primary intake to belt intake (30 CFR (b)(6)) shall be taken out by the break between the primary escape way (No. 2 Entry) and the track (No. 3 entry) used to off load supplies on development sections and longwall sections, and within two (2) crosscuts out by the beginning (Beginning - defined as across from first permanent stopping) of the primary escape way on mains development sections. K. Belt Air / AMS Monitoring 1. The use of belt air in the faces is safe as not using belt air provided that the AMS stations are installed and the AMS operators are employed. The use of air from belt entries will be allowed because of the following conditions: a) High volumes of air are required in this mine to dilute the methane liberated during mining of advancing sections and longwall faces. b) Double split ventilation is preferred on developing sections and in the mains to reduce the velocity and percentage of methane in any one return entry. Using this system requires that the section advance belt be in a different entry than the longwall belt used on retreat because a belt cannot be in a return and the future headgate entry where the longwall belt is located is a return on the advancing section c) The number of entries in the current development sections and mains entries is based on using belt air in the faces. Without doubling the amount of air in the non-belt entries, it would be impossible to not use belt air at the face d) A significant increase in volumes would be required to supply non-belt air to the faces while also keeping the belt entries clear e) Increasing the number of entries on development sections would change the dynamics to the roof control system for which the yield-stable-yield pillar pattern was developed. 2. The use of belt air on working faces and areas where mechanized mining equipment is being installed or removed will require a permanent DA be installed not more than 50 feet upwind of the point at which belt air and non-belt air mix. When needed to control dust, a curtain may be installed upwind of the feeder, provided that the curtain does not reverse the air from coming from entry 2 to entry 3. ID MI 11912AC pg. 4

8 Buchanan Mine Ventilation & Dust Control Plan General Information 3. The ambient carbon monoxide (CO) concentration at the mine as determined by 7,939 actual readings of the CO monitoring system recorded during the period June 25-28, 2004 is one (1) part per million (ppm). The CO system alert and alarm status used for sensors pursuant to 30 CFR shall be 4 ppm and 8 ppm above ambient, respectively. 4. On advancing sections, the first crosscut outby the belt tailpiece between the belt/track entry(s) and the primary escapeway (No. 2 Entry) can be left open to enable section supplies [i.e. bulk rock dust (2,800 lbs/bag), concrete block (3,570 lbs/pallet) and roof bolts (1,858 lbs/bundle)] to be unloaded from the track by mechanical means. This is to eliminate the exposure of workers to unnecessary hazards of requiring materials to be hand carried approximately 150 feet beside the active belt. Installation of the additional CO sensors will provide an air quality monitor of all intake air delivered to the section. (please see page 26 for sketches showing details of these provisions) During belt/power advancement activities or other times where it is necessary to remove power from a working section s transformer, the CO sensor located in the belt/track entry no further than 50ft outby the last crosscut to be left open will be powered by an alternative means and maintained in operable condition. Once work is complete and power has been restored from the section transformer, the remaining sensors will be returned to operable condition. 5. Methane build up in the crosscut is controlled by providing positive ventilation in this crosscut. 6. The AMR CO monitoring system requires three (3) confirmation packets from an activated sensor to prevent non-fire related alert and alarm signals. The actual time for poling the system is based on the total number of sensors in the system. The additional time required to process an alert/alarm signal using three (3) confirm packets instead of one (1) is thirty (30) seconds [from manufacturer]. 7. Due to the large quantities of air required to adequately ventilate all active areas, belt air velocities may reach 1,500 feet per minute for a distance not to exceed 3,000 feet from Vent Shaft 11. L. Enhanced Belt Drive Fire Suppression System Specifications for use of Intake Belt Air. 1. Coverage Dual Pattern sprays on both sides of the belt from 25 feet outby Drive to 50 feet inby Take Up except in the Take Up area. Triple Spray units are to be used beside the multi-layer Take Up. The Triple Sprays in the Belt Take Up unit may be configured similarly (projecting beneath the top belt) to the Dual Spray unit located along the belt as long as the sprays are not in the path of moving components. The lower spray located in the Take Up area is to be positioned to spray level with the middle belt elevation / location and out of the area movement of the traveling belt pulley and bearings. Sprays of each group not ID MI 11912AC pg. 5

9 Buchanan Mine Ventilation & Dust Control Plan General Information to be located within the line of sight each other except where limited headroom configuration is used. Each group of sprinklers are to be located along both sides of the belt with a nominal 7.5 spacing (6 to 8 ), with half period staggering between right and left sides with a nominal 3.75 spacing, (3 to 4 ). Top spray is to be located between 1 to 12 from the roof. Individual Pattern sprays are located at Drive Motors, Head Roller Bearings, and Hydraulic Power Unit. No sprinkler protection is to be provided at electrical belt starter box, this area to be protected by removal of combustible material at least 2 feet from the starter box or other means as provided in 30 CFR (3). This typical plan is designed for fire protection of conventional belt drive & takes up arrangements. There are situations where this plan cannot be complied with completely because of unusual site characteristics. Specifically, the Bunker Tripper belt, The Production belt discharge roller, required modifications to the plan to provide protection because of spacing, length, and geometry. For similar situations that may arise in the future, this plan will be applied with modifications of such a nature so as to provide equal or superior protection as intended in this generic plan. For these types of situations an outside fire suppression system vendor/consultant will be used to design the system for that specific application. The intent is to comply as closely as possible with the layout and spacing as specified in this plan. 2. Pressure Creep - To allow the use of commercially available components in the fire suppression system, the water feed to the system will pass through a pressure reducing valve that will reduce the static pressure of the feed water to less than 300 PSI during activation (working pressure). During a non flow condition the pressure on both sides of the pressure reducing valve may equalize. 3. Sprinklers Specification Globe SIN Model GL5616, Working pressure 300 psi rated sprinkler, Upright Style, K factor, quick response, and ordinary activation temperature (135 to 170 degree range) will be used. All sprays to be identical type. This plan has the potential for adjacent sprinklers to each influence the activation of the nearby units. To compensate for this design has incorporated an increased sprinkler density of about 2 times the minimum specification. The required minimum coverage is provided by the redundant sprays located on the opposite side of the belt that are protected by the belt and structure from direct influence from the spray from the upper sprinklers on the opposite side of the belt. The intent of this plan is to increase the opportunity for quick activation by doubling the amount of sensing units and moving the sprinkler closer to the potential fire location. It is not necessary for all of the sprinklers on each branch line to activate in order to provide the required 0.25 GPM per SFT coverage. 4. Valve Specification Position Lock on all valves, slow opening / closing type, with labels. 5. Pipe Specification minimum 2 diameter cross mains pipes in a looped configuration. Cross main piping to be galvanized with Victaulic grooved connections rated for 300 psi working pressure. Sprinkler arms also to be galvanized but may have threaded connections and are to be mounted on rigid steel attachments. The system will be supplied from a 2 PRV supplied by owner all components beyond PRV to be supplied by vendor. Standard Supervisor Valve arrangement, with Check Valve, Y Strainer, and Pressure Gauge is to be supplied vendor. (Only FM or UL Listed Components are to be supplied by vendor). 6. Potential damage to system from water hammer events have been minimized by requiring the use of slow closing valves and configuring cross main lines in a loop feed arrangement. 7. Hydraulic Performance 8 spray test manifold installed at the most remote hydraulic location with the system able to maintain a minimum of 33 psi residual pressure at the test bar when activated. 8. Electrical controls Water flow of the sprinkler system will trigger the shutdown of the belt, activation of the sprinkler system will initiate the wall of water sprays, and closing the control (supervisor) valve will also trigger the shutdown of the belt. The activation of the system will send an output to the CO monitoring system. 9. Wall of Water Spray will be installed at each end of the belt drive unit. The spray will be activated by either flow in the fire suppression system or by triggering of heat sensors placed every 10 ft over the belt drive unit. The activation temperature of these sensors shall be 165 degrees. 10. Additional Fire Control Equipment - The minimum required equipment installed at each belt drive location will be a Portable Foam Pack and a First Responder Reel in connected ready to use condition. ID MI 11912AC pg. 6

10 Buchanan Mine Ventilation & Dust Control Plan General Information This equipment will be equipped with an inspection tag to record inspections to be completed at least every 6 months. 11. Inspections - The fire suppression system will be visually checked weekly for mechanical integrity and damage. Additionally weekly the system pressure will be checked and if the gauge is indicating in excess of 300 psi, the system will be bled to test the functioning of the pressure reducing valve. The fire suppression system will be checked annually by a functional check that includes the activation of the 8 spray test bar and a check to see if the system can maintain a residual pressure of 33 psi at the test bar. As part of this test a check will be completed to assure that the wall of water sprays are activated and that the belt drive is shut down are by system flow. This test will also assure that the belt drive is shutdown by the closing of master supervisor valve. The date and the initials of the person performing the weekly and annual tests will be noted in a book maintained near the fire system (usually at the belt starter box) and made available for inspection by the authorized representatives of the Secretary. M. While sampling respirable dust with a CPDM, miners may remove the monitor under the following circumstances provided that the sample location is representative of the atmosphere in which the miner is located: 1. Roof bolter operators may remove the CPDM and place it within 36 inches of their normal operating position provided that the miner remains in the working face and is engaged in activities directly related to the bolting process. 2. Coal hauler and/or shuttle car operators may remove the CPDM and place it in the operator s compartment provided that they remain within 36 inches of the operator s compartment. 3. Mechanics, longwall jack setters, and Part 90 miners, engaged in activities that may expose the CPDM to unsuspended dust particles or substantially hinder the movement of the miner may remove the CPDM provided that it remains within 36 inches of their work position at all times. ID MI 11912AC pg. 7

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17 QUICK RESPONSE HIGH PRESSURE AUTOMATIC SPRINKLERS MODEL GL BULB SPRAY SERIES UPRIGHT PENDENT DESCRIPTION AND OPERATION The Globe Quick Response High Pressure Model GL Series Sprinkler is a low profile yet durable design which utilizes a 3mm frangible glass ampule as the thermosensitive element. This provides sprinkler operation approximately six times faster than ordinary sprinklers, and has been evaluated for use where static or flowing pressures are 300 psi or below. While the Quick Response Sprinkler provides an aesthetically pleasing appearance, it can be installed wherever standard spray sprinklers are specified when allowed by the applicable standards. It offers the additional feature of greatly increased safety to life and is available in various styles, orifices, temperature ratings and finishes to meet many varying design requirements. Quick Response Sprinklers should be used advisedly and under the direction of approving authorities having jurisdiction. The heart of Globe's Model GL Series sprinkler proven actuating assembly is a hermetically sealed frangible glass ampule that contains a precisely measured amount of fluid. When heat is absorbed, the liquid within the bulb expands increasing the internal pressure. At the prescribed temperature the internal pressure within the ampule exceeds the strength of the glass causing the glass to shatter. This results in water discharge which is distributed in an approved pattern depending upon the deflector style used. TECHNICAL DATA See reverse side for Approvals and Specifications. Temperature Ratings F (57 C), 155 F (68 C), 175 F (79 C), 200 F (93 C), 286 F (141 C). Water Working Pressure Rating psi (21 Bars). Factory tested hydrostatically to 850 psi (59 Bars). Maximum low temperature glass bulb rating is -67 F (-55 C). Frame - bronze Deflector - brass Screw - brass Bulb seat - copper Spring - nickel alloy Seal - teflon Bulb - glass with alcohol based solution, 3mm size. QUICK RESPONSE UPRIGHT QUICK RESPONSE PENDENT SPRINKLER TEMPERATURE RATING/CLASSIFICATION and COLOR CODING CLASSIFICATION AVAILABLE SPRINKLER TEMPERATURES BULB COLOR N.F.P.A. MAXIMUM CEILING TEMPERATURE ORDINARY 135 F/155 F 57 C/68 C ORANGE/RED 100 F 38 C INTERMEDIATE 175 F/200 F 79 C/93 C YELLOW/GREEN 150 F 66 C HIGH 286 F 141 C BLUE 225 F 107 C 4077 AIRPARK DRIVE, STANDISH, MICHIGAN FAX JULY 2005 A-22 BULLETIN GLQR-300PSI, REV. #2 14

18 QUICK RESPONSE HIGH PRESSURE AUTOMATIC SPRINKLERS MODEL GL SERIES UPRIGHT PENDENT NOTE: METRIC CONVERSIONS ARE APPROXIMATE. SPECIFICATIONS ORIFICE SIZE NOMINAL "K" FACTOR THREAD SIZE LENGTH FINISHES 1/2" (15 mm) 5.6 (80 metric) 1/2" NPT 2 1/4" (5.7 cm) Factory Bronze Chrome 17/32" (20 mm) 7.8 (111 metric) 1/2" NPT *2 1/4" (5.7 cm) White Polyester+ 17/32" (20 mm) 8.1 (116 metric) 3/4" NPT 2 7/16" (6.2 cm) Black Polyester+ Lead Coated** * EXCLUDING PINTLE. ** FINISHES AVAILABLE ON SPECIAL ORDER. + AVAILABLE AS culus LISTED CORROSION RESISTANT WHEN SPECIFIED ON ORDER. APPROVALS ST YLE SIN MODEL K FACTOR 135 F 57 C 155 F 68 C 175 F 79 C 200 F 93 C 286 F 141 C culus UPRIGHT PENDEN T GL X X X X X X GL * X X X X X X GL X X X X X X GL X X X X X X GL * X X X X X X GL X X X X X X * 17/32" X 1/2" NPT. ORDERING INFORMATION SPECIFY Quantity Model Number Style Orifice Thread Sizes Temperature Finishes desired Quantity - Wrenches - P/N (1/2"); P/N (L.O.) GLOBE PRODUCT WARRANTY Globe agrees to repair or replace any of its own manufactured products found to be defective in material or workmanship for a period of one year from date of shipment. For specific details of our warranty please refer to Price List Terms and Conditions of Sale (Our Price List) AIRPARK DRIVE, STANDISH, MICHIGAN FAX SEPTEMBER 2004 PRINTED U.S.A. BULLETIN GLQR-300PSI, REV. #1 15

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20 Buchanan Mine Ventilation & Dust Control Plan General Information Intentionally Left Blank ID MI 11912AC pg. 17

21 Buchanan Mine Ventilation & Dust Control Plan Continuous Miner CONTINUOUS MINER A. On continuous miner sections (see page 64 for equipment table), in all working places where mining, bolting or cleaning is occurring, the face area (Roof including cavities, Face, Ribs and Floor) will be checked for methane prior to the beginning the mining, bolting or cleaning and then every ten minutes until complete. Following any interruption in face ventilation, a methane check shall be made in the working face prior to resuming production. B. A minimum air quantity of 9,000 cfm shall reach the face of all working places where coal is being cut, mined, drilled or loaded or 60 fpm mean entry air velocity (MEAV), whichever is more. C. Where rock is being cut from roof falls or construction sites, the ventilation will be established to direct dust away from miners with a minimum quantity of 10,000 CFM or velocity over the miner of 60 fpm, whichever is greater. The velocity minimum does not apply while rock is only being loaded out. D. In idle working faces on gate developments unless otherwise prescribed, the minimum quantity of air is determined by the distance the face is driven from the mains. The minimum shall be 3,000cfm at all times. Once the gate entries are developed more than 5,000 ft from the mains the minimum quantity of air reaching the idle working faces shall be 6,000 cfm. E. A minimum air quantity of 18,000 cfm shall reach the last open crosscut of each set of entries or rooms on working sections with the exception that when diesel equipment is being used inby the section loading point this minimum air quantity shall be the sum of the quantity of air stipulated on the approval plate of each such unit of diesel equipment in use, or 18,000 cfm, whichever is greater. F. A minimum air quantity of 9,000 cfm shall reach the last open crosscut in areas where mechanized mining equipment is being installed or removed. G. If a blowing section fan is used the minimum quantity of air reaching the last open crosscut shall be 23,000 cfm on the split of air in which the fan is being used. If the use of the blowing fan is discontinued, the provisions of this plan for exhausting line curtain shall be followed. The mean air velocity will be at least 60 fpm MEAV where required by law. H. If an exhausting section fan is used the minimum quantity of air in the last open break shall be 21,000 cfm, including the air in the tubing. No less than 12,000 cfm will be maintained outside the tubing in the last open break while an exhausting section fan is in use. If the use of the exhaust fan is discontinued in the inside heading, the provisions of this plan for exhausting line curtain shall be followed. The mean air velocity will be at least 60 fpm MEAV where required by law. I. Dual methane monitors shall be maintained on all continuous miners. These monitors shall be calibrated at least once during every 24-hour period in which the machine is in use. Such calibration shall be noted in the on shift examiner s record. ID MI 11912AC pg. 18

22 Buchanan Mine Ventilation & Dust Control Plan Continuous Miner J. An exhausting system of face ventilation will be used except as modified by this plan. When bolting either a baffle system, a diffuser fan system or both may be utilized (please see page 33 for an illustration of these methods). 1. In working places where roof bolting is taking place, exhaust curtains in conjunction with a baffle system may be used. When using a baffle with an exhausting system, the following procedures shall apply: a) A baffle, as defined in this system, is a curtain suspended from the mine roof to a level near the top of the bolter as necessary to sweep the face area of methane. While using a baffle during the bolting cycle, the baffle will be adjusted and advanced as necessary to maintain less than 1% methane content. b) The end of the permanent line curtain will be no further from the face than the second row of roof bolts installed during the previous bolting cycle. c) The baffle will begin at a point no further than the third row of roof bolts installed during the previous bolting cycle. d) When installing roof bolts in the first cut taken out of a crosscut the baffle shall be positioned such that the ventilating current is forced into the face of the crosscut. 2. A hydraulic axial flow diffuser fan may be used on roof bolters. If hydraulic axial flow diffuser fans are used, the following conditions will be complied with: a) The hydraulic diffuser fan shall be equipped with a non sparking aluminum impeller. b) The line curtain shall be maintained at the second row of roof bolts outby the row of bolts being installed. c) The diffuser fan shall be positioned such that air is directed towards the off curtain corner of the face. d) The fan will produce a quantity of not less than 1,000cfm (as measured with a Magnehelic manometer and Pitot tube). If the quantity falls below this value, face ventilation shall be accomplished by use of one of the systems outlined elsewhere in this plan. K. During the cleanup process, ventilation controls may be required to be removed from the immediate face area to facilitate adequate equipment clearance and exposure for rock dusting. Accordingly, a methane detector set to alarm, both audibly and visually, at 1% methane concentration, will be placed in the face area to be cleaned. This detector will be maintained throughout the cleanup process to continually monitor for methane buildup. The detector will be placed on a bolt in the last row of permanent bolts in the face being cleaned. Should the face be left unattended or unmonitored for any reason during the cleaning process, a curtain will be installed in such a manner as to maintain the minimum air quantity for the place to within 10 feet of the face. L. When an exhausting auxiliary fan and tubing is used, the placement of the end of the tubing shall be the same as the placement of the exhaust curtain, within 10 feet of the face. M. Sump Depths are limited to 5 feet. The first cut will be taken from either the center or curtain side of the face. N. The use of the blowing fan will permit mining in the center entries and bolting in the outside headings simultaneously. During the roof bolting of the face, the blowing fan will be used to assist the line curtain to provide ventilation to the face. The fan(s) will be permissible and operated in intake or return airways with 16 inch diameter, or equivalent, tubing. Flexible tubing may only be used from just inby the start of the line curtain used to ventilate the #1 and #4 faces when the fan is not being used (garage area) towards the face. The fan(s) will be manufactured by SMJ, Spendrup, or an equivalent manufacturer, and capable of providing the airflow necessary to adequately ventilate the face. The fan(s) will have an operating capacity from 3,000 cfm to 16,000 cfm or greater. The volume of air coursing through the ID MI 11912AC pg. 19

23 Buchanan Mine Ventilation & Dust Control Plan Continuous Miner tubing will be sufficient to provide positive pressure to the working area while meeting the approved ventilation requirements of the line curtain. Air quantities in the active faces shall be maintained as required here in. Safety Precautions: 1. At any time the tubing system is damaged such that the minimum air quantity parameters under this plan cannot be met, or if the blowing fan system fails, operation in the affected faces will cease until the blowing system is repaired or the approved exhausting line curtain face ventilation is reestablished. 2. After starting the fan to ventilate an outside heading, the volume of air in the inside heading will be checked. 3. After adjusting ventilation controls according to the attached sketches and prior to bolting, the foreman will ensure that the fan output is adequate to meet the requirements of the exhausting curtain and maintain positive pressure to the bolting area. 4. The tubing will be grounded at some location along its length. 5. If the blowing fan is positioned in the return, a gas check will be made at the fan prior to starting the fan. O. An exhausting auxiliary fan with tubing may be used to ventilate working faces and all normal mining activities may be done in any heading ventilated using this system. The fan(s) will be permissible and operated with a minimum of 20 inch ID main tubing. A slider tube, which fits inside the main tubing, will be used to allow the end of the tubing to be kept within 10 ft of the face. This slider will be advanced from under supported top. The fan(s) will have a minimum operating capacity of 3,000 cfm. Dampers can be used in the tubing to control the volume of air in each heading. Air quantities in the active faces shall be maintained as required here in. Safety Precautions: 1. At any time the tubing system is damaged such that the minimum air quantity parameters under this plan cannot be met, operations in the affected faces will cease, equipment in the affected faces will be de-energized and the tubing repaired. If, during repairs to the tubing system, methane levels in the affected faces reach 1%, line curtain will be installed to maintain face ventilation. Sufficient curtain to reestablish line curtain ventilation will be kept on the section. 2. If an auxiliary fan fails, operations in the affected faces will cease, equipment in the affected faces will be de-energized, and the line curtain ventilation reestablished. 3. Whenever a main fan goes down, the installation of line curtain will be begin immediately in all headings ventilated with exhausting auxiliary fans and tubing as a precaution against evacuation. 4. Whenever the exhaust fan system is initiated, the line curtain will not be removed until the fan is operating and the required amount of air is flowing in the tubing. When the curtain is removed, the faces will be examined for air quality and quantity before energized equipment is used inby the last open crosscut. 5. The tubing will be grounded at some location along its length. 6. A gas check will be made at the fan prior to starting the fan. 7. If recirculation through the next to last open break cannot be controlled with curtains, a stopping will be built in that break before continuing to mine on that split of air. P. Auxiliary Fan Specifications: 1. Permissible 2. Two HP motors3600 RPM volts Hz 5. Adjustable fan blades 6. Optional Wet Scrubber Addition (removes particulates but provides no ventilation capacity) ID MI 11912AC pg. 20

24 Buchanan Mine Ventilationn & Dust Control Plan Continuous Miner Q. In instances where it is necessary to mine into a place withh higher pressure, immediately before cutting through, a curtain will be installed in the entry or crosscut to lower the pressure in this area (typical installation shown below). In addition, a certified person will examine the cut through area for gas immediately prior to cutting through. R. S. T. U. V. Roof bolting and cleaning activities will not be performed in the return air from an operating continuous mining machine. Construction and drilling activities in returns will be limited to no closer than five breaks outby a face where coal is being cut and no one will be allowed to work in a return where coal is being cut for more than threee cuts of coal during a shift. Run through fly curtains are necessary for methane control during mining operations. Fly curtains in active use by coal haulers will be of a transparent nature if, they are available in an adequate thickness too prevent curtain separation caused by air pressure. If clearr fly pads are not available, both sides of a run through fly curtain on an active road way will be equippedd with a flashing light. This is to warn miners of possible encounters with coal haulage equipment in thesee areas. Car operators will have the headlights illuminated in the direction of travel and sound an audible alarm beforee traveling through a fly curtain. Material which falls on top of the continuous miner from the roof shall not be allowed to prevent the flow of air through the throat of the machine. A permanent stopping shall be provided in the third connecting crosscut outby the face between the intake and return air courses. At sites where construction excavation will take place in the return air courses, building of the permanent stopping in the third connecting crosscut may be delayed until excavation is completed to provide ample haulage ways during the process provided coal is not being mined inby the construction work on the same split of air. Deep cuts are defined as cuts which exceed twenty (20) feet in depth as measured from the last full row of permanent roof support. When deep cuts are taken, thee following shall apply: 1. The maximumm cut depth is limited to twenty-five (25) feet as measured from the last full row of permanent roof support. 2. The continuous mining machine will be equippedd with a functional, machine mounted water spray dust suppression system. 3. The methanee monitor installed on the continuouss mining machine will have a methane indicating digital readout that will be legible to thee continuous mining machine operator or helper at all times when the machine is being operated. As installed, the monitoring system utilizes two sensors with a single digital readout. 4. The methanee monitor will be calibrated to de-energize the continuous mining machine at 1.5 percent of methane. 5. The fire suppression system on the continuous mining machine will be capable of being activated when the miner is de-energized and without any person having to be positioned beyond permanently supported roof. 6. If the parameters for deep cuts cannot be maintained, but are within the parameters for a normal cut, the maximumm cut depth will be limitedd to twenty (20) feet. ID MI 11912AC pg. 21

25 Buchanan Mine Ventilation & Dust Control Plan Continuous Miner W. Prior to mining into an entry where an active degas gathering line is located: 1. The gas gathering line will be shut off outby the affected area and all active inby holes will be shut in. 2. The gas gathering line will be moved to a safe location in the entry or removed from the affected area. 3. After mining is complete, the gathering line may be re-established and the inby holes opened. X. Prior to mining a set up face where a horizontal degas hole may be encountered: 1. The degas hole will be disconnected from the gathering line 2. A water line will be connected to the degas hole and the hole charged with water. 3. When the hole is encountered during mining, the water will be disconnected and the hole left open at both ends. Y. If set up faces are to be mined into an active head gate outby the longwall face, just prior to making the first cut through into the section: 1. Any persons working inby the cut through point will gather at the section power center or be removed outby the cut through point. 2. After the initial cut through is made and the cut through area isolated, the inby work areas will be examined prior to commencing any work. 3. Prior to implementation, this plan will be reviewed with all affected employees. Z. The use of belt air on the face while mining the intermediate set up entries will be limited by the installation of checks around the loading point (see sketches on pages 41 through 43 for intermediate LW setup face mining). AA. When the first cut through is made into the adjacent section, both of the doors in the number 1 entry of the panel being cut immediately on both side of the cut through and will be shut and stopping immediately out by the cut through between the number 1 and 2 entries removed, isolating the cut through area. The other set up entry will then be cut through (see sketches on pages 39 & 40for the typical cut-through of setup entries and their ventilation). BB. The bleeders may be mined on two splits by returning the right split into the adjacent section through the set up entries at the top end of the section (see sketches starting on page 35). CC. After the longwall set up entries are connected to the adjacent longwall gate entries, the longwall face equipment may be installed while mining the panel and bleeder entries inby the set up entries using the ventilation shown. One or both of the set up entries may be on intake and either double or single split ventilation may be used when mining inby the set up faces. During this time, the measurements pursuant to section (b)(6) shall be made in the break where the intake splits from the main isolated intake entry and the amount of air entering the set up entry for the split of air ventilating the setup face(s). The amount of air splitting from the main isolated intake must be more than 50% of the air entering the set up face (see sketches on pages 44 and 45for LW setup ventilation while mining bleeders inby). DD. Procedures for removing sandstone rock encountered in the working place: 1. Work will be under the direct supervision of a certified person designated by the company. 2. The roof will be bolted as close to the rock as is possible. 3. The rock will be removed by a scoop. 4. The remaining unsupported roof in the cut will be bolted. 5. The cut will be cleaned and rock dusted. 6. Ventilation controls will be established. 7. Normal mining will resume ID MI 11912AC pg. 22

26 Buchanan Mine Ventilation & Dust Control Plan Continuous Miner 8. If the rock is too large to move with a scoop, a push pull ventilation will be established in that area using an exhausting line curtain and a blowing section fan as shown on page 32 of the approved ventilation plan or blowing and exhausting curtains if no section fan is available prior to cutting the rock. EE. Miner bits will be checked not less than once per production shift and will be replaced as necessary. FF. Miner bit lugs will be inspected not less than once per production shift and will be replaced as necessary. At no time will a miner be used if more than four lugs are damaged or missing on any of its cutter drums. GG. No person will be positioned inby the end of the line brattice or tubing while coal is being cut, mined, or loaded. HH. Procedure for mining through a vertical degasification well: 1. A down hole survey, in conjunction with surface surveys, shall be performed to determine the coordinates of the intersection point. The accuracy of this survey shall be 1:5, Wells that intersect the P3 seam and are within 100 feet of active workings shall be plugged prior to mining within 500 feet of such well. A sketch of the plugging procedure is shown on page For wells in which the annulus between the casing and the well wall was not cemented 50-feet above and 50-feet below the coal seam or where steel tubing remains through the coal seam, a well specific plan shall be developed and approved prior to the active workings coming to within 500-feet of the well. 4. Prior to mining through the intersection point on continuous miner sections, but in no case earlier than the shift previous to the projected mine through: A. Affected personnel shall be notified of the intent to mine through the well and the well location- this notification shall be recorded in the on-shift book. B. The methane monitor on the continuous miner shall be calibrated and recorded. C. The continuous miner and face haulage equipment shall be checked for permissibility and recorded. ID MI 11912AC pg. 23

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51 Buchanan Mine Ventilation & Dust Control Plan Longwall LONGWALL A. The minimum air quantity reaching the headgate during retreat shall be 85,000 cfm. The minimum air velocity on the face during retreat shall be 600 feet per minute (fpm) measured 50 to 100 feet from the headgate, and 500 fpm measured 50 to 100 feet from the tailgate. B. When installing equipment on a longwall set up face the minimum quantity of air reaching the set up face, as measured just outby the adjacent open crosscut in the intake entries delivering air to the face, shall be the greater of18,000 cfm or the sum of the quantities of air stipulated on the approval plates of all diesel powered equipment on the face and used for shield transport. C. When removing equipment from a longwall face the minimum quantity of air reaching the set up face shall be the greater of 40,000 cfm or the sum of the quantities of air stipulated on the approval plates of all diesel powered equipment on the face and used for shield transport. D. When a methane concentration of 1% is detected by the tail face or mid-face conveyor methane monitors, power to the shearer shall be deenergized by the headgate operator. The face conveyor, crusher and stageloader may be allowed to continue running to empty the conveyors. All longwall personnel shall be reinstructed as to this requirement on a regular basis. E. All longwall personnel shall be trained on all of the options for clear air escape from the longwall including the Isolated escapeway in the number 2 entry, the secondary escapeway provided by the track in number 3 entry off the headgate and the Isolated intake available in the number 1 entry of the tail gate. F. On retreating sections the first two (2) crosscuts outby the belt tailpiece separating the belt/track entry(s) and primary escapeway can be left open. Leaving this break open requires the following conditions to be complied with (please see the sketch on page 54 for location detail): 1. CO sensors will be installed no more than 50ft outby the mixing points created in the No. 3 and No. 4 entries by the furthest outby cross cut left open. 2. Intake CO sensors will be installed in each crosscut left open between the No. 2 and No. 3 entries outby the retreating face. These sensors may be removed once the retreating face has approached to within 50 feet of any particular crosscut equipped with a CO sensor. G. Dust will be controlled on roadways from the end of the track and supply storage location to the head area with water and/or calcium chloride or other dust suppressants. H. As a precaution associated with frac gas wells, longwall crews will be informed prior to mining through a plugged frac well. Each crew will be informed when the retreating face is within 100ft from the center of the well to be mined through until the well is contacted. I. Methane checks will be conducted along the longwall panline by the longwall systems operators as the shear advances from head to tail. These additional checks will be conducted as the panline is being advanced at a level below the cable trough to check for the presence of floor methane. ID MI 11912AC pg. 48