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..:; <br />METHANE AND DUST CONTROL PRACTICES ON THE WORKING SECTION <br />CONTINUOUS MINER <br />r 1 <br />LJ <br />•.• <br />L J <br />,~ . <br />'I . <br />:` <br />Mine Name: Southfield Mine <br />MSHA Mine ID No.: 05-03455 <br />MSHA MMU No.: 002-0 <br />Designated Occupation Code: 036 <br />Continuous Miner Serial No.: Joy 12-6 AJM2673 <br />Current Section Name: The West Submains <br />Section Haulage Equipment: 2 Joy 10SC <br />Belt Air Used at the Face: No <br />The following parameters are <br />System and Methane and Dust <br />1. <br />2. <br />3. <br />4. <br />hereby adopted into the Ventilation's <br />Control Plan. as per 30 CFR 75.316: <br />Minimum air quantities shall be as follows: <br />at working faces: 10,000 cfm <br />at idle faces: proper volume as to maintain methane to less.;: <br />than 1$ as required by 75.308 <br />at the last open crosscut: 15,000 cfm <br />at the intake end of the pillar line: 15,000 cfm :l <br />The minimum mean entry air velocity in the working face:,. <br />shall be 60 ft/min. <br />The maximum distance the line curtain is maintained from the•~~, <br />point of deepest penetration of the face shall be: 20 feet •• <br />for working faces, 20 ft. for idle faces. <br />The following water spray systems will be used to control. <br />dust on the specified equipment. The number of sprays indi-..s <br />Gated are the actual total number of sprays on the equip- <br />ment. <br />••~ <br />Equipment No, of <br />Description S to s <br />Continuous Miner 3G* <br />Feeder Breaker 2** <br />Minimum <br />- - -. Spey. _ <br />Type of Operating <br />Sprays Pressute <br />Mist Fog fl2 or 90 PSI .60GPM/: <br />q3 or Equivalent ... <br />Mist <br />p3 or <br />Fog A2 ors;-•i,~,:;.~,~ ti~~lU ti: it :ivt:.~. <br />Equivalent ., <br />5. See Page 20 for a spray schematic of the continuous miner ' <br />listed above showing the location of the minimum number of .. .:' <br />water sprays to be maintained and operated in each area..- <br />(bank) of the equipment. <br />6. Other controls or practices: <br />1. Haulage and supply roads will be in a damp or compact ~~. <br />condition to maintain the average concenttation of res-";:' <br />pirable dust at or below 2,0mg/m3 of air. <br />7. Notes: ~,. <br />* At least 90~ of the water sprays shall be maintained in :'~: <br />good operative condition prior to coal being cut, mined <br />or loaded. <br />** To be used when dust control in this area is determined;~~; <br />Planssary, as mentioned on Page 15, Item IV, 3 of this~p <br />1'~ S <br />~'~~.'`'" ki <br />Mine an der D~~ ~:.,.i~:~Gi: ~, <br />Po r7c 19 <br />