FIELD: mining.
SUBSTANCE: high coal degassing comprises the steps that follow. Paired gateways are drilled over bed top layer and communicated by linkages and spaced apart diagonal board gates separating the blocks in parts. Wells are drilled from paired gateway top works in bed top layer plane and series of parallel wells are drilled to bed bottom layer from paired gateway bottom works. Said wells are connected to degassing pipeline. Note here that this method comprises an extra step whereat the system of parallel wells is drilled from cu diagonal board gate along the block and directed to mining face. Note also that methane from wells drilled in the bed top layer plane is derived by sections to near linkage via pipeline laid in upper paired gateways and that in linkage between paired gateways to section pipeline laid in lower paired gateway.
EFFECT: decreased methane release, higher safety.
5 dwg
| Title | Year | Author | Number |
|---|---|---|---|
| GAS EMISSION CONTROL METHOD AT DEVELOPMENT OF COAL BED PRONE TO SPONTANEOUS IGNITION | 2012 |
|
RU2512049C2 |
| COMPLEX CONTROL METHOD OF GAS EMISSION IN EXTRACTION SECTIONS AT DEVELOPMENT OF THICK AND SUPERIMPOSED HIGHLY GAS-BEARING GENTLY SLOPING COAL BEDS | 2012 |
|
RU2510461C1 |
| METHOD OF CONTROL OF METHANE EMISSION AT EXTRACTION DISTRICT IN CHAMBER-AND-PILLAR SYSTEM FOR BANK EXCAVATION | 2013 |
|
RU2533464C1 |
| METHOD FOR DEGASSING EXCAVATED COAL FIELD | 2022 |
|
RU2807283C1 |
| METHOD OF DEGASSING LOW SLIGHTLY INCLINED SEAM FORMATION | 0 |
|
SU1125386A1 |
| DEGASSING METHOD OF WORKING AREA | 2020 |
|
RU2732931C1 |
| METHOD TO DEGAS COAL-BEARING SERIES | 2012 |
|
RU2487246C1 |
| COAL-BEARING STRATA DEGASATION METHOD | 2008 |
|
RU2382882C1 |
| COAL SEAM DEGASSING | 2013 |
|
RU2520669C1 |
| SUPERIMPOSED HIGHLY GAS-BEARING COAL BED SERIES DEVELOPMENT METHOD | 2005 |
|
RU2282030C1 |
