RU2014138190A - HIGH PRESSURE PNEUMATIC EXPLOSION PRESSURE RESET AND TRANSMISSION METHOD - Google Patents
HIGH PRESSURE PNEUMATIC EXPLOSION PRESSURE RESET AND TRANSMISSION METHOD Download PDFInfo
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- RU2014138190A RU2014138190A RU2014138190A RU2014138190A RU2014138190A RU 2014138190 A RU2014138190 A RU 2014138190A RU 2014138190 A RU2014138190 A RU 2014138190A RU 2014138190 A RU2014138190 A RU 2014138190A RU 2014138190 A RU2014138190 A RU 2014138190A
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- RU
- Russia
- Prior art keywords
- pressure
- steel pipe
- pits
- blasting
- high pressure
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Classifications
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- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21C—MINING OR QUARRYING
- E21C37/00—Other methods or devices for dislodging with or without loading
- E21C37/06—Other methods or devices for dislodging with or without loading by making use of hydraulic or pneumatic pressure in a borehole
- E21C37/14—Other methods or devices for dislodging with or without loading by making use of hydraulic or pneumatic pressure in a borehole by compressed air; by gas blast; by gasifying liquids
Abstract
1. Способ сброса давления и увеличения проницаемости высоким давлением пневматического взрыва, включающий:бурение взрывных шурфов (5) в пласте угля (7), в котором применяют резку пласта струей воды под высоким давлением с соответствующим интервалом во взрывных шурфах (5) для образования направляющих щелей (8) в массиве угля вокруг взрывных шурфов (5);направляют взрывную стальную трубу (3) с уплотненной верхней частью во взрывные шурфы (5),причем несколько пор (6) выполняют на передней части взрывной стальной трубы (3), а участок размером 8-10 м уплотняют внутрь от отверстия каждого взрывного шурфа (5) для образования цементной пробки (4);присоединяют открытый конец каждой взрывной стальной трубы (3) к станции (1) газа под высоким давлением через трубопровод и клапан (2), выполненный на трубопроводе, открывают для инжектирования газа под высоким давлением, так что газ под высоким давлением выбрасывается из пор (6) через взрывную стальную трубу (3) и тем самым массив угля взрывается пневматически под высоким давлением.2. Способ сброса давления и увеличения проницаемости высоким давлением пневматического взрыва по п. 1, в котором давление инжектируемого газа с высоким давлением составляет 25 МПа.1. A method of depressurizing and increasing the high-pressure permeability of a pneumatic explosion, comprising: drilling explosive pits (5) in a coal seam (7), which uses a high-pressure water jet cutting the formation with an appropriate interval in the explosive pits (5) to form guides slots (8) in the coal mass around the blasting pits (5); direct the blasting steel pipe (3) with a sealed top into the blasting pits (5), with several pores (6) being performed on the front of the blasting steel pipe (3), and plot size 8-10 m seals inward from the hole of each blast hole (5) to form a cement plug (4); attach the open end of each blast steel pipe (3) to the high-pressure gas station (1) through the pipeline and the valve (2) made on the pipeline is opened for injecting gas under high pressure, so that gas under high pressure is ejected from the pores (6) through an explosive steel pipe (3) and thereby the coal mass explodes pneumatically under high pressure. 2. The method of depressurizing and increasing the high-pressure permeability of a pneumatic explosion according to claim 1, wherein the pressure of the injected gas with high pressure is 25 MPa.
Claims (2)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201210393559.6A CN102852506B (en) | 2012-10-17 | 2012-10-17 | High-pressure pneumatic blasting pressure relieving and transmission increasing method |
CN201210393559.6 | 2012-10-17 | ||
PCT/CN2013/074447 WO2014059777A1 (en) | 2012-10-17 | 2013-04-19 | High-pressure pneumatic blasting pressure relieving and transmission increasing method |
Publications (2)
Publication Number | Publication Date |
---|---|
RU2014138190A true RU2014138190A (en) | 2016-04-10 |
RU2588095C2 RU2588095C2 (en) | 2016-06-27 |
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Also Published As
Publication number | Publication date |
---|---|
CN102852506A (en) | 2013-01-02 |
WO2014059777A1 (en) | 2014-04-24 |
AU2013330947B2 (en) | 2016-04-07 |
AU2013330947A1 (en) | 2015-02-05 |
CN102852506B (en) | 2014-05-14 |
ZA201407507B (en) | 2015-11-25 |
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