Multipurpose drill hole for coal mine
A first drill hole and a second drill hole play a role in coal body pressure relief in the early stage of coal mine stoping, meanwhile, the first drill hole and the second drill hole can be networked to conduct pre-pumping before gas mining, during stoping, high-pressure water is used for punching,...
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| creator | WANG JUN YUAN DESHENG HE TAO GUO WEIHU WANG FENG TANG HONG FU HANGHANG CHEN GENMA |
| description | A first drill hole and a second drill hole play a role in coal body pressure relief in the early stage of coal mine stoping, meanwhile, the first drill hole and the second drill hole can be networked to conduct pre-pumping before gas mining, during stoping, high-pressure water is used for punching, and static-pressure water is used for injecting water for keeping, so that water molecules make full contact with coal body fractures, and the coal body fractures are prevented from being fractured. The coal body is covered and wetted in an all-dimensional and three-dimensional mode from top to bottom, the oxidation speed of the coal body is slowed down, and drill holes play a role of fire preventing and extinguishing holes, pressure relief holes and dustproof holes; after stoping, saline water and yellow mud can be poured into the drill hole, the goaf coal body is covered with slurry for humidifying and cooling, oxygen is isolated, the oxidation speed of the coal body is slowed down, coal body cracks are filled af |
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The coal body is covered and wetted in an all-dimensional and three-dimensional mode from top to bottom, the oxidation speed of the coal body is slowed down, and drill holes play a role of fire preventing and extinguishing holes, pressure relief holes and dustproof holes; after stoping, saline water and yellow mud can be poured into the drill hole, the goaf coal body is covered with slurry for humidifying and cooling, oxygen is isolated, the oxidation speed of the coal body is slowed down, coal body cracks are filled af</description><language>chi ; eng</language><subject>EARTH DRILLING ; EARTH DRILLING, e.g. DEEP DRILLING ; FIXED CONSTRUCTIONS ; GALLERIES ; LARGE UNDERGROUND CHAMBERS ; MINING ; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS ; SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, ORDRAINING IN OR OF MINES OR TUNNELS ; SHAFTS ; TUNNELS</subject><creationdate>2021</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20211214&DB=EPODOC&CC=CN&NR=215170027U$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76290</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20211214&DB=EPODOC&CC=CN&NR=215170027U$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>WANG JUN</creatorcontrib><creatorcontrib>YUAN DESHENG</creatorcontrib><creatorcontrib>HE TAO</creatorcontrib><creatorcontrib>GUO WEIHU</creatorcontrib><creatorcontrib>WANG FENG</creatorcontrib><creatorcontrib>TANG HONG</creatorcontrib><creatorcontrib>FU HANGHANG</creatorcontrib><creatorcontrib>CHEN GENMA</creatorcontrib><title>Multipurpose drill hole for coal mine</title><description>A first drill hole and a second drill hole play a role in coal body pressure relief in the early stage of coal mine stoping, meanwhile, the first drill hole and the second drill hole can be networked to conduct pre-pumping before gas mining, during stoping, high-pressure water is used for punching, and static-pressure water is used for injecting water for keeping, so that water molecules make full contact with coal body fractures, and the coal body fractures are prevented from being fractured. 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| language | chi ; eng |
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| subjects | EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS GALLERIES LARGE UNDERGROUND CHAMBERS MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, ORDRAINING IN OR OF MINES OR TUNNELS SHAFTS TUNNELS |
| title | Multipurpose drill hole for coal mine |
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