Method for judging coal mine spontaneous combustion area based on detection of C14 radiation quantity
The invention discloses a method for judging a coal mine spontaneous combustion area based on detection of C14 radiation quantity. The method comprises the following steps: firstly, preparing radioactive sodium bicarbonate slurry; selecting a coal seam area with coal seam spontaneous combustion tend...
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| creator | LU YI YAN ZHIHONG FANG XIUZHENG WU FANGHUA GU WANGXIN LI HE |
| description | The invention discloses a method for judging a coal mine spontaneous combustion area based on detection of C14 radiation quantity. The method comprises the following steps: firstly, preparing radioactive sodium bicarbonate slurry; selecting a coal seam area with coal seam spontaneous combustion tendency easy to spontaneously combust as a coal seam detection area, and then drilling a plurality of drill holes in the coal seam detection area at equal intervals; injecting the prepared radioactive sodium bicarbonate slurry into the drill hole, and then the radioactive sodium bicarbonate slurry entering a detection area through a coal body crack; and judging a coal spontaneous combustion area, namely extracting gas for multiple times from each drill hole, performing C14 detection on the extracted gas by using a C14 detector, drawing a change curve in a C14 radiation quantity-time two-dimensional diagram, and further determining the spontaneous combustion condition of the coal seam detectionarea around the drill hol |
| format | Patent |
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The method comprises the following steps: firstly, preparing radioactive sodium bicarbonate slurry; selecting a coal seam area with coal seam spontaneous combustion tendency easy to spontaneously combust as a coal seam detection area, and then drilling a plurality of drill holes in the coal seam detection area at equal intervals; injecting the prepared radioactive sodium bicarbonate slurry into the drill hole, and then the radioactive sodium bicarbonate slurry entering a detection area through a coal body crack; and judging a coal spontaneous combustion area, namely extracting gas for multiple times from each drill hole, performing C14 detection on the extracted gas by using a C14 detector, drawing a change curve in a C14 radiation quantity-time two-dimensional diagram, and further determining the spontaneous combustion condition of the coal seam detectionarea around the drill hol</description><language>chi ; eng</language><subject>DETECTING MASSES OR OBJECTS ; GEOPHYSICS ; GRAVITATIONAL MEASUREMENTS ; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES ; MEASURING ; PHYSICS ; TESTING</subject><creationdate>2020</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=20200703&DB=EPODOC&CC=CN&NR=111366686A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25543,76294</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20200703&DB=EPODOC&CC=CN&NR=111366686A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>LU YI</creatorcontrib><creatorcontrib>YAN ZHIHONG</creatorcontrib><creatorcontrib>FANG XIUZHENG</creatorcontrib><creatorcontrib>WU FANGHUA</creatorcontrib><creatorcontrib>GU WANGXIN</creatorcontrib><creatorcontrib>LI HE</creatorcontrib><title>Method for judging coal mine spontaneous combustion area based on detection of C14 radiation quantity</title><description>The invention discloses a method for judging a coal mine spontaneous combustion area based on detection of C14 radiation quantity. The method comprises the following steps: firstly, preparing radioactive sodium bicarbonate slurry; selecting a coal seam area with coal seam spontaneous combustion tendency easy to spontaneously combust as a coal seam detection area, and then drilling a plurality of drill holes in the coal seam detection area at equal intervals; injecting the prepared radioactive sodium bicarbonate slurry into the drill hole, and then the radioactive sodium bicarbonate slurry entering a detection area through a coal body crack; and judging a coal spontaneous combustion area, namely extracting gas for multiple times from each drill hole, performing C14 detection on the extracted gas by using a C14 detector, drawing a change curve in a C14 radiation quantity-time two-dimensional diagram, and further determining the spontaneous combustion condition of the coal seam detectionarea around the drill hol</description><subject>DETECTING MASSES OR OBJECTS</subject><subject>GEOPHYSICS</subject><subject>GRAVITATIONAL MEASUREMENTS</subject><subject>INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES</subject><subject>MEASURING</subject><subject>PHYSICS</subject><subject>TESTING</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2020</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqNyjEOwjAMheEuDAi4gzkAQ1QUsaIKxAITe-UmTknV2qVxBm5PVXEApqf_01sXdCd9iYcgE3TZt5FbcII9DJEJ0iisyCQ5zTo0OWkUBpwIocFEHubypOQWlwCVOcKEPuIC74ysUT_bYhWwT7T77abYXy_P6nagUWpKIzpi0rp6GGNKa-3Jnst_Pl_5-z7d</recordid><startdate>20200703</startdate><enddate>20200703</enddate><creator>LU YI</creator><creator>YAN ZHIHONG</creator><creator>FANG XIUZHENG</creator><creator>WU FANGHUA</creator><creator>GU WANGXIN</creator><creator>LI HE</creator><scope>EVB</scope></search><sort><creationdate>20200703</creationdate><title>Method for judging coal mine spontaneous combustion area based on detection of C14 radiation quantity</title><author>LU YI ; YAN ZHIHONG ; FANG XIUZHENG ; WU FANGHUA ; GU WANGXIN ; LI HE</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CN111366686A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>chi ; eng</language><creationdate>2020</creationdate><topic>DETECTING MASSES OR OBJECTS</topic><topic>GEOPHYSICS</topic><topic>GRAVITATIONAL MEASUREMENTS</topic><topic>INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES</topic><topic>MEASURING</topic><topic>PHYSICS</topic><topic>TESTING</topic><toplevel>online_resources</toplevel><creatorcontrib>LU YI</creatorcontrib><creatorcontrib>YAN ZHIHONG</creatorcontrib><creatorcontrib>FANG XIUZHENG</creatorcontrib><creatorcontrib>WU FANGHUA</creatorcontrib><creatorcontrib>GU WANGXIN</creatorcontrib><creatorcontrib>LI HE</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>LU YI</au><au>YAN ZHIHONG</au><au>FANG XIUZHENG</au><au>WU FANGHUA</au><au>GU WANGXIN</au><au>LI HE</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>Method for judging coal mine spontaneous combustion area based on detection of C14 radiation quantity</title><date>2020-07-03</date><risdate>2020</risdate><abstract>The invention discloses a method for judging a coal mine spontaneous combustion area based on detection of C14 radiation quantity. The method comprises the following steps: firstly, preparing radioactive sodium bicarbonate slurry; selecting a coal seam area with coal seam spontaneous combustion tendency easy to spontaneously combust as a coal seam detection area, and then drilling a plurality of drill holes in the coal seam detection area at equal intervals; injecting the prepared radioactive sodium bicarbonate slurry into the drill hole, and then the radioactive sodium bicarbonate slurry entering a detection area through a coal body crack; and judging a coal spontaneous combustion area, namely extracting gas for multiple times from each drill hole, performing C14 detection on the extracted gas by using a C14 detector, drawing a change curve in a C14 radiation quantity-time two-dimensional diagram, and further determining the spontaneous combustion condition of the coal seam detectionarea around the drill hol</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | DETECTING MASSES OR OBJECTS GEOPHYSICS GRAVITATIONAL MEASUREMENTS INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING PHYSICS TESTING |
| title | Method for judging coal mine spontaneous combustion area based on detection of C14 radiation quantity |
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