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Degasification of Longwalls. Phase 1: Annex to Report No. 2 on the Technology of Degasification of Mines in Poland and Other European Countries.

DE83009204

Publication Date	1978
Page Count	41
Abstract	On the basis of results of the study tour to the Federal Republic of Germany the following can be stated: (1) methane drainage has a long tradition in the coal mining industry of the FRG and the present state of degasification technology should be regarded as high. The level reached in the field of methane drainage by the western-Germany coal mining industry may, in principle, be considered representative for the coal mining industries of other western-European countries. The basic method of deposit degasification is the classical method of draining methane from strata and adjacent seams by means of boreholes; advance degasification of the mined seam is of minor importance. In the field of methane drainage the following particular technical achievements deserve mentioning: the linking of the applied degasification system with the ventilation system, taking into consideration the degree of methane hazard; the location of drainage boreholes on the basis of systematically conducted scientific-research work/above all the probing of methane drainage holes; gradual change-over of degasification stations to water-ring pumps; newest solutions of borehole sealing; and use of automatic flame extinguishers in degasification stations. (ERA citation 08:022977)
Keywords	Coal Seams Drilling Equipment Federal Republic of Germany Longwall Mining Methane Boreholes Coal Mines Coal Mining Coal Reserves Degassing Depth Fire Extinguishers Gas Flow Maps Numerical Data Productivity Pumps Quantity Ratio Recovery Rock Bursts Safety Engineering Seals Underground Mining Ventilation Foreign technology ERDA/012000
Source Agency	Technical Information Center Oak Ridge Tennessee
NTIS Subject Category	97K - Fuels 97A - Reserves 48A - Mineral Industries
Corporate Authors	Glowny Inst. Gornictwa, Katowice (Poland).; Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	198409

Degasification of Longwalls. Phase 1: Annex to Report No. 2 on the Technology of Degasification of Mines in Poland and Other European Countries.

Degasification of Longwalls. Phase 1: Annex to Report No. 2 on the Technology of Degasification of Mines in Poland and Other European Countries.
DE83009204

Publication Date	1978
Page Count	41
Abstract	On the basis of results of the study tour to the Federal Republic of Germany the following can be stated: (1) methane drainage has a long tradition in the coal mining industry of the FRG and the present state of degasification technology should be regarded as high. The level reached in the field of methane drainage by the western-Germany coal mining industry may, in principle, be considered representative for the coal mining industries of other western-European countries. The basic method of deposit degasification is the classical method of draining methane from strata and adjacent seams by means of boreholes; advance degasification of the mined seam is of minor importance. In the field of methane drainage the following particular technical achievements deserve mentioning: the linking of the applied degasification system with the ventilation system, taking into consideration the degree of methane hazard; the location of drainage boreholes on the basis of systematically conducted scientific-research work/above all the probing of methane drainage holes; gradual change-over of degasification stations to water-ring pumps; newest solutions of borehole sealing; and use of automatic flame extinguishers in degasification stations. (ERA citation 08:022977)
Keywords	Coal Seams Drilling Equipment Federal Republic of Germany Longwall Mining Methane Boreholes Coal Mines Coal Mining Coal Reserves Degassing Depth Fire Extinguishers Gas Flow Maps Numerical Data Productivity Pumps Quantity Ratio Recovery Rock Bursts Safety Engineering Seals Underground Mining Ventilation Foreign technology ERDA/012000
Source Agency	Technical Information Center Oak Ridge Tennessee
NTIS Subject Category	97K - Fuels 97A - Reserves 48A - Mineral Industries
Corporate Authors	Glowny Inst. Gornictwa, Katowice (Poland).; Department of Energy, Washington, DC.
Document Type	Technical Report
NTIS Issue Number	198409