CN106640176B - A method of preventing coal mine gob spontaneous combustion disaster using high heat conduction fiber - Google Patents
A method of preventing coal mine gob spontaneous combustion disaster using high heat conduction fiber Download PDFInfo
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- CN106640176B CN106640176B CN201611149154.2A CN201611149154A CN106640176B CN 106640176 B CN106640176 B CN 106640176B CN 201611149154 A CN201611149154 A CN 201611149154A CN 106640176 B CN106640176 B CN 106640176B
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- heat conduction
- high heat
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- coal mine
- spontaneous combustion
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- 239000000835 fiber Substances 0.000 title claims abstract description 73
- 239000003245 coal Substances 0.000 title claims abstract description 48
- 230000002269 spontaneous effect Effects 0.000 title claims abstract description 38
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 34
- 238000000034 method Methods 0.000 title claims abstract description 32
- 238000001816 cooling Methods 0.000 claims abstract description 16
- 238000007254 oxidation reaction Methods 0.000 claims abstract description 12
- 238000010438 heat treatment Methods 0.000 claims abstract description 6
- 238000009434 installation Methods 0.000 claims abstract description 5
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 18
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 16
- 239000004020 conductor Substances 0.000 claims description 15
- 239000003963 antioxidant agent Substances 0.000 claims description 13
- 230000003078 antioxidant effect Effects 0.000 claims description 13
- 229910052802 copper Inorganic materials 0.000 claims description 13
- 239000010949 copper Substances 0.000 claims description 13
- 239000000463 material Substances 0.000 claims description 13
- 239000002245 particle Substances 0.000 claims description 11
- 239000004597 plastic additive Substances 0.000 claims description 11
- 238000012946 outsourcing Methods 0.000 claims description 10
- KWYUFKZDYYNOTN-UHFFFAOYSA-M Potassium hydroxide Chemical compound [OH-].[K+] KWYUFKZDYYNOTN-UHFFFAOYSA-M 0.000 claims description 9
- 239000004115 Sodium Silicate Substances 0.000 claims description 9
- 239000010451 perlite Substances 0.000 claims description 9
- 235000019362 perlite Nutrition 0.000 claims description 9
- 235000019795 sodium metasilicate Nutrition 0.000 claims description 9
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 9
- 229910052911 sodium silicate Inorganic materials 0.000 claims description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 9
- 239000007788 liquid Substances 0.000 claims description 8
- XNGIFLGASWRNHJ-UHFFFAOYSA-N phthalic acid Chemical compound OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 claims description 8
- 238000000227 grinding Methods 0.000 claims description 7
- 238000002360 preparation method Methods 0.000 claims description 7
- DXPPIEDUBFUSEZ-UHFFFAOYSA-N 6-methylheptyl prop-2-enoate Chemical group CC(C)CCCCCOC(=O)C=C DXPPIEDUBFUSEZ-UHFFFAOYSA-N 0.000 claims description 6
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 6
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 claims description 6
- TZCXTZWJZNENPQ-UHFFFAOYSA-L barium sulfate Chemical compound [Ba+2].[O-]S([O-])(=O)=O TZCXTZWJZNENPQ-UHFFFAOYSA-L 0.000 claims description 6
- 239000004202 carbamide Substances 0.000 claims description 6
- 229920001577 copolymer Polymers 0.000 claims description 6
- 238000002844 melting Methods 0.000 claims description 6
- 230000008018 melting Effects 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 239000002826 coolant Substances 0.000 claims description 5
- 230000009970 fire resistant effect Effects 0.000 claims description 5
- 239000012774 insulation material Substances 0.000 claims description 5
- 239000000725 suspension Substances 0.000 claims description 5
- SHFGJEQAOUMGJM-UHFFFAOYSA-N dialuminum dipotassium disodium dioxosilane iron(3+) oxocalcium oxomagnesium oxygen(2-) Chemical group [O--].[O--].[O--].[O--].[O--].[O--].[O--].[O--].[Na+].[Na+].[Al+3].[Al+3].[K+].[K+].[Fe+3].[Fe+3].O=[Mg].O=[Ca].O=[Si]=O SHFGJEQAOUMGJM-UHFFFAOYSA-N 0.000 claims description 4
- 150000002148 esters Chemical class 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- 229910052582 BN Inorganic materials 0.000 claims description 3
- 206010013786 Dry skin Diseases 0.000 claims description 3
- 229920000877 Melamine resin Polymers 0.000 claims description 3
- XQVWYOYUZDUNRW-UHFFFAOYSA-N N-Phenyl-1-naphthylamine Chemical class C=1C=CC2=CC=CC=C2C=1NC1=CC=CC=C1 XQVWYOYUZDUNRW-UHFFFAOYSA-N 0.000 claims description 3
- 239000002202 Polyethylene glycol Substances 0.000 claims description 3
- 239000004721 Polyphenylene oxide Substances 0.000 claims description 3
- 239000004676 acrylonitrile butadiene styrene Substances 0.000 claims description 3
- 229920000122 acrylonitrile butadiene styrene Polymers 0.000 claims description 3
- XECAHXYUAAWDEL-UHFFFAOYSA-N acrylonitrile butadiene styrene Chemical compound C=CC=C.C=CC#N.C=CC1=CC=CC=C1 XECAHXYUAAWDEL-UHFFFAOYSA-N 0.000 claims description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 3
- 239000012752 auxiliary agent Substances 0.000 claims description 3
- 239000013590 bulk material Substances 0.000 claims description 3
- 229920006026 co-polymeric resin Polymers 0.000 claims description 3
- 239000000470 constituent Substances 0.000 claims description 3
- 239000008367 deionised water Substances 0.000 claims description 3
- 229910021641 deionized water Inorganic materials 0.000 claims description 3
- GDVKFRBCXAPAQJ-UHFFFAOYSA-A dialuminum;hexamagnesium;carbonate;hexadecahydroxide Chemical compound [OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[OH-].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Mg+2].[Al+3].[Al+3].[O-]C([O-])=O GDVKFRBCXAPAQJ-UHFFFAOYSA-A 0.000 claims description 3
- 239000012153 distilled water Substances 0.000 claims description 3
- 238000001035 drying Methods 0.000 claims description 3
- 238000004079 fireproofing Methods 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- 235000011187 glycerol Nutrition 0.000 claims description 3
- 229960001545 hydrotalcite Drugs 0.000 claims description 3
- 229910001701 hydrotalcite Inorganic materials 0.000 claims description 3
- 238000001027 hydrothermal synthesis Methods 0.000 claims description 3
- -1 hydroxy ethylidene Chemical group 0.000 claims description 3
- ZFSLODLOARCGLH-UHFFFAOYSA-N isocyanuric acid Chemical compound OC1=NC(O)=NC(O)=N1 ZFSLODLOARCGLH-UHFFFAOYSA-N 0.000 claims description 3
- 150000002576 ketones Chemical class 0.000 claims description 3
- JDSHMPZPIAZGSV-UHFFFAOYSA-N melamine Chemical compound NC1=NC(N)=NC(N)=N1 JDSHMPZPIAZGSV-UHFFFAOYSA-N 0.000 claims description 3
- YGGXZTQSGNFKPJ-UHFFFAOYSA-N methyl 2-naphthalen-1-ylacetate Chemical compound C1=CC=C2C(CC(=O)OC)=CC=CC2=C1 YGGXZTQSGNFKPJ-UHFFFAOYSA-N 0.000 claims description 3
- 229910000403 monosodium phosphate Inorganic materials 0.000 claims description 3
- 235000019799 monosodium phosphate Nutrition 0.000 claims description 3
- 239000001301 oxygen Substances 0.000 claims description 3
- 229910052760 oxygen Inorganic materials 0.000 claims description 3
- 229920002239 polyacrylonitrile Polymers 0.000 claims description 3
- 229920001223 polyethylene glycol Polymers 0.000 claims description 3
- 229920006380 polyphenylene oxide Polymers 0.000 claims description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 3
- 239000000843 powder Substances 0.000 claims description 3
- 238000005245 sintering Methods 0.000 claims description 3
- AJPJDKMHJJGVTQ-UHFFFAOYSA-M sodium dihydrogen phosphate Chemical compound [Na+].OP(O)([O-])=O AJPJDKMHJJGVTQ-UHFFFAOYSA-M 0.000 claims description 3
- 239000007787 solid Substances 0.000 claims description 3
- 229920003002 synthetic resin Polymers 0.000 claims description 3
- 239000000057 synthetic resin Substances 0.000 claims description 3
- 239000003643 water by type Substances 0.000 claims description 3
- 238000005303 weighing Methods 0.000 claims description 3
- PZNSFCLAULLKQX-UHFFFAOYSA-N Boron nitride Chemical compound N#B PZNSFCLAULLKQX-UHFFFAOYSA-N 0.000 claims description 2
- 239000004255 Butylated hydroxyanisole Substances 0.000 claims description 2
- NLZUEZXRPGMBCV-UHFFFAOYSA-N Butylhydroxytoluene Chemical compound CC1=CC(C(C)(C)C)=C(O)C(C(C)(C)C)=C1 NLZUEZXRPGMBCV-UHFFFAOYSA-N 0.000 claims description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 2
- 229920000049 Carbon (fiber) Polymers 0.000 claims description 2
- 239000004734 Polyphenylene sulfide Substances 0.000 claims description 2
- 235000019282 butylated hydroxyanisole Nutrition 0.000 claims description 2
- CZBZUDVBLSSABA-UHFFFAOYSA-N butylated hydroxyanisole Chemical compound COC1=CC=C(O)C(C(C)(C)C)=C1.COC1=CC=C(O)C=C1C(C)(C)C CZBZUDVBLSSABA-UHFFFAOYSA-N 0.000 claims description 2
- 229940043253 butylated hydroxyanisole Drugs 0.000 claims description 2
- 235000010354 butylated hydroxytoluene Nutrition 0.000 claims description 2
- 239000004917 carbon fiber Substances 0.000 claims description 2
- 230000008878 coupling Effects 0.000 claims description 2
- 238000010168 coupling process Methods 0.000 claims description 2
- 238000005859 coupling reaction Methods 0.000 claims description 2
- 239000010439 graphite Substances 0.000 claims description 2
- 229910002804 graphite Inorganic materials 0.000 claims description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 2
- 229920000069 polyphenylene sulfide Polymers 0.000 claims description 2
- 238000005406 washing Methods 0.000 claims description 2
- JJJOZVFVARQUJV-UHFFFAOYSA-N 2-ethylhexylphosphonic acid Chemical compound CCCCC(CC)CP(O)(O)=O JJJOZVFVARQUJV-UHFFFAOYSA-N 0.000 claims 1
- 239000004209 oxidized polyethylene wax Substances 0.000 claims 1
- 235000013873 oxidized polyethylene wax Nutrition 0.000 claims 1
- 238000006116 polymerization reaction Methods 0.000 claims 1
- 230000003647 oxidation Effects 0.000 abstract description 6
- 230000002265 prevention Effects 0.000 abstract description 4
- 238000005065 mining Methods 0.000 abstract description 3
- 235000006708 antioxidants Nutrition 0.000 description 9
- 238000004519 manufacturing process Methods 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 238000009825 accumulation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- ZVFDTKUVRCTHQE-UHFFFAOYSA-N Diisodecyl phthalate Chemical compound CC(C)CCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC(C)C ZVFDTKUVRCTHQE-UHFFFAOYSA-N 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 229920006027 ternary co-polymer Polymers 0.000 description 2
- XYJLPCAKKYOLGU-UHFFFAOYSA-N 2-phosphonoethylphosphonic acid Chemical compound OP(O)(=O)CCP(O)(O)=O XYJLPCAKKYOLGU-UHFFFAOYSA-N 0.000 description 1
- 206010003497 Asphyxia Diseases 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- DBVJJBKOTRCVKF-UHFFFAOYSA-N Etidronic acid Chemical compound OP(=O)(O)C(O)(C)P(O)(O)=O DBVJJBKOTRCVKF-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- FZQBLSFKFKIKJI-UHFFFAOYSA-N boron copper Chemical compound [B].[Cu] FZQBLSFKFKIKJI-UHFFFAOYSA-N 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 239000007970 homogeneous dispersion Substances 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 239000011261 inert gas Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 238000007569 slipcasting Methods 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 230000010415 tropism Effects 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F5/00—Means or methods for preventing, binding, depositing, or removing dust; Preventing explosions or fires
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/12—Both compacting and sintering
- B22F3/14—Both compacting and sintering simultaneously
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L55/00—Compositions of homopolymers or copolymers, obtained by polymerisation reactions only involving carbon-to-carbon unsaturated bonds, not provided for in groups C08L23/00 - C08L53/00
- C08L55/02—ABS [Acrylonitrile-Butadiene-Styrene] polymers
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
- B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
- B22F3/12—Both compacting and sintering
- B22F3/14—Both compacting and sintering simultaneously
- B22F2003/145—Both compacting and sintering simultaneously by warm compacting, below debindering temperature
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/04—Antistatic
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
Landscapes
- Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Life Sciences & Earth Sciences (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Fireproofing Substances (AREA)
Abstract
The invention discloses a kind of methods preventing coal mine gob spontaneous combustion disaster using high heat conduction fiber, belong to mining safety field.The method is：It is laid with high heat conduction fiber in coal mine gob, cover the main region of oxidization of remained coal self-heating in goaf, high heat conduction fiber absorbs the heat of oxidation of coal spontaneous combustion release, fiber is collected bunchy at working face Air return corner to be connected to outside goaf, fibre bundle is connect with cooling back installation, the heat that heat conducting fiber is transmitted is absorbed using cooling back installation, reduces goaf internal temperature, play the role of preventing Residual coal in goaf oxidation and spontaneous combustion and reduces flame range temperature.The present invention can safe and efficient prevention coal mine gob freely burning fire, accelerate fire-zone open speed simultaneously reduce resume combustion risk.
Description
Technical field
The present invention relates to a kind of methods preventing coal mine gob spontaneous combustion disaster using high heat conduction fiber, belong to mining safety
Field.
Background technology
Coal spontaneous combustion disaster is prevalent among China's underground mine, is influenced by production practice, is deposited in coal mine gob
Coal and caving rock are largely being lost, good accumulation of heat environment is provided for oxidation of coal self-heating.Coal spontaneous combustion fire can discharge after occurring
The toxic gas such as CO jeopardize miner's life security.Current coal spontaneous combustion control method relies primarily on the technologies such as slip casting, note nitrogen, although
Oxygen concentration in goaf can be reduced and inhibit burning, but the heat put aside in goaf can not be eliminated, high temperature dot in goaf
It still remains, because coal, rock heat conductivility are poor, goaf temperature-fall period is slow, and high temperature would generally maintain dozens of days even more long.
Especially for the goaf for having occurred and that freely burning fire, the long time period resumed production after flame range is sealed, and is easy after breaking seal
Flame range resume combustion occurs.In order to solve this problem, core is to eliminate the accumulation heat in goaf.
Invention content
The present invention is intended to provide a kind of method preventing coal mine gob spontaneous combustion disaster using high heat conduction fiber, is led using height
Thermal fiber is attached to Residual coal in goaf oxidation and spontaneous combustion region in goaf internal fiber network, in the intensive paving in spontaneous combustion hotspots
If；Fibre bundle is finally linked to the cooling back installation outside goaf, heat in goaf is eliminated, reduces goaf temperature
Degree plays the effect of prevention spontaneous combustion disaster.
It is mined out in coal mine the present invention provides a kind of method preventing coal mine gob spontaneous combustion disaster using high heat conduction fiber
Area is laid with high heat conduction fiber, covers the main region of oxidization of remained coal self-heating in goaf, and high heat conduction fiber absorbs oxidation of coal spontaneous combustion
The heat of release, at working face Air return corner fiber is collected bunchy is connected to outside goaf, fibre bundle and circulating cooling
Device connects, and absorbs the heat that heat conducting fiber is transmitted using cooling back installation, reduces goaf internal temperature, play prevention and adopt
Dead zone oxidization of remained coal spontaneous combustion and the effect for reducing flame range temperature.
Further, the easy spontaneous fine seam refers to the main region of oxidization of remained coal self-heating in goaf.It is i.e. mined out
Rate of leaking out in area is between 0.24-0.10 m/min or oxygen concentration between the region of 5%-15%.
In order to ensure the very good heat transfer characteristics of fiber, good physical strength and corrosion-resistant anti-oxidant, the high heat conduction fibre
Dimension is base-material by Nanometer Copper, is combined with highly heat-conductive material and plastic additive, antioxidant, the high heat conduction being combined into
Fibre diameter is 3-10mm；The process of preparation is：The secondary grinding of metallic copper powder mechanical grinding device for being 15 μm by grain size
At the nano copper particle that grain size is 10-100nm, hydrophilic modifying is carried out to it, while by highly heat-conductive material attrition grinding at grain size
Modified Nano copper particle, highly heat-conductive material particle, plastic additive are pressed quality 200 by the particle of 100nm:100:10 are mixed
It closes, then the powder mixed is put into mold, in 1200 DEG C and 300kg/cm2Thermocompressed sintering and forming under conditions of pressure,
The antioxidant pressurizing melting of 3 ~ 5 parts of quality is added, melting temperature is 200 DEG C, 20 min of constant temperature after being heated to 200 DEG C,
Pressure is 500kg/cm2。
Further, the hydrophilic modifying process is：It is immersed in NaOH and mass fraction that mass fraction is 6.0 ~ 7.5%
For 4.5 ~ 5.5% K4O7P2Mixed solution in be modified；Nanometer Copper, highly heat-conductive material, plasticity addition in high heat conduction fiber
Agent, antioxidant quality proportioning be 16.0-19.0：5.0-8.0：0.3-0.8：0.1-0.2；The highly heat-conductive material is nitridation
One kind in boron, carbon fiber or graphite；The plastic additive is one kind in polyacrylonitrile, polyphenylene sulfide or pitch；It is described
Antioxidant is one kind in 2,6-di-tert-butyl p-cresol, butylated hydroxy anisole or N- phenyl-1-naphthylamines.
The high heat conduction fiber disperses inside goaf, and in goaf, Air return corner is gathered into a branch of, in order to avoid
Loss of the heat in transmittance process, the inner core outsourcing high efficiency heat insulation material of high heat conduction fiber, beam tube outsourcing fire-resistant antistatic packet
Layer.
The inner core outsourcing high efficiency heat insulation material of the high heat conduction fiber is perlite/sodium metasilicate/Isooctyl acrylate monomer ternary
Copolymer, the copolymer is by perlite, sodium metasilicate, Isooctyl acrylate monomer copolymer 40-60 in mass ratio:30-45:6-10
It is made, the process of preparation is：It weighs perlite in proportion with electronic balance and is placed in 1 000mL glass beakers with Isooctyl acrylate monomer
In, 100mL distilled water is added after at the uniform velocity stirring 30min, continues to be proportionally added into sodium metasilicate again after mixing slowly 20m in, slowly
Speed stirring is until being uniformly mixed;The mixture for weighing 300g is added in mold, and bulk material is pressed into using 50t forcing presses
After carry out microwave treatment, final take out stands cooling；It need to be microwave irradiation 8-10 minutes under 800KW power after being made.
The fire-resistant antistatic covering of the beam tube outsourcing of the high heat conduction fiber, by modified synthetic resin addition fire proofing with
Auxiliary agent is made；Its constituent and ratio are：Acrylonitrile-butadiene-styrene copolymer resin, barium sulfate, phthalic acid
Diisodecyl ester, phthalic acid two (2- ethyl hexyls) ester, polyphenylene oxide ketone, LDH-MCA nanometer flame retardent materials, oxidic polyethylene
Wax presses 90-120：30-65：20-45：8-16：5-10：3-9：5-7 is formed.Wherein, the system of LDH-MCA nanometer flame retardent materials
It is for process：Cyanuric acid 0.2g is accurately weighed first and melamine 0.2g is placed in 100mL deionized waters, is ultrasonically treated
The sodium hydroxide solution of 0.02mol/L, mixed suspension is added in 2h；Then by LDH（Hydrotalcite）It is added with urea outstanding
In turbid, Al3+And Mg2+Concentration is respectively 0.05mol/L and 0.10mol/L, and urea concentration 0.60mol/L is ultrasonically treated 1h；
Mixed liquor is added in 500mL ptfe autoclaves, is reacted for 24 hours at 90 DEG C using hydro-thermal method；After being cooled to room temperature, mistake
Bottom solid residue, deionized water washing are filtered and collect, LDH-MCA nanometer flame retardent materials are prepared in 50 DEG C of dryings.
When heat conducting fiber is inadequate, when needing continued access, quick coupling is used to connect two fibers.
The cooling device is made of heat conducting pipe, coolant liquid, transfer pipeline, valve.Further, cold in cooling device
But liquid by water, glycerine, polyethylene glycol, methyl α-naphthyl acetate, sodium dihydrogen phosphate, potassium hydroxide, 1-hydroxy ethylidene-1,1-diphosphonic acid by forming, quality
Proportioning is：48:30:7:2:1.5:1.5:10.
Beneficial effects of the present invention：
（1）The present invention can safe and efficient prevention coal mine gob freely burning fire, accelerate fire-zone open speed simultaneously and reduce and is multiple
Fire risk.
（2）The method for preventing coal mine gob spontaneous combustion disaster using high heat conduction fiber, can be laid with a plurality of in goaf
Fiber, wide coverage can be also laid with according to easy spontaneous fine seam specific aim；Using simplicity, operation is flexible, can efficiently disappear
Except the accumulation heat inside goaf, and service life is long.
（3）The method for preventing coal mine gob spontaneous combustion disaster using high heat conduction fiber, need not inject N into goaf2、
CO2Equal inert gases, can prevent the generation of underground suffocation accident, safe.
（4）It relies solely on heat transfer and eliminates goaf internal heat, chemical reagent is not used, to goaf and understratum
It is pollution-free, belong to environmental type technology.
Description of the drawings
Fig. 1 is the schematic diagram of high heat conduction fiber.
Fig. 2 is the schematic diagram of high heat conduction fiber beam tube.
Fig. 3 is high heat conduction fiber arrangement schematic diagram inside coal mine gob.
In figure：1 is a nanometer copper fiber inner core, and 2 be high heat conduction fibrous layer, and 3 be resin covering, and 4 be insulating layer, 5 high heat conductions
Fiber, 6 be stope working surface of coal mines, and 7 be goaf, and 8 be high heat conduction fiber beam tube.
Specific implementation mode
It is further illustrated the present invention below by embodiment, but is not limited to following embodiment.
Embodiment 1：
Certain coal mine work area, which uses, uses caving coal technology, and mining height 5.1m, it is 207m that length is inclined in goaf, and spontaneous combustion of coal seam inclines
Tropism is I class spontaneous fire seams, and the self-heating ignition phase is 28 days, and something lost coal is more in recovery process, and spontaneous combustion in goaf is serious, adopts
Dead zone spontaneous fine seam is determined as working face rear 30-80m ranges, dangerous in order to reduce working face spontaneous combustion, ensures mine peace
Full production, is uniformly laid with 100 high heat conduction fibers along working face air entering and returning crossheading respectively, and high heat conduction Fiber Materials are Nanometer Copper-
Boron nitride composite fibre, fibre diameter 5mm, length 200m, in goaf, inner homogeneous dispersion is laid with, between about pressing per 2m
Every 1 arrangement, it is simutaneously arranged temp probe and measures goaf internal temperature.With working face gradually back production, high heat conduction fiber quilt
It buries and enters goaf, be distributed in the oxide regions of the most easy spontaneous combustion in goaf, lose coal during oxidation, constantly distribute heat
Amount.It buries and enters the continual heat for absorbing oxidization of remained coal generation inside goaf of the high heat conduction fiber in goaf.It leads
When thermal fiber is connected to outside goaf, fiber is in contact with the heat conducting pipe in cooling device, passes through what is flowed through in cooling device
Liquid nitrogen coolant liquid cools down, and absorbs the heat in goaf, and final realize reduces goaf internal temperature, and actual measurement comparison arrangement height is led
Before and after thermal fiber, each measuring point temperature is reduced to 32.5 DEG C for 54.7 DEG C from highest inside goaf, and the surface technical solution can be real
Now ensure the purpose of Safety of Coal Mine Production.
The material and working condition used in the present embodiment be：
The high heat conduction fiber is base-material by Nanometer Copper, and with highly heat-conductive material and plastic additive, antioxidant is compound
It is made, the high heat conduction fibre diameter being combined into is 3-10mm；
The process of preparation is：It is by the secondary grain size that is ground into of metallic copper powder mechanical grinding device that grain size is 15 μm
The nano copper particle of 10-100nm carries out it hydrophilic modifying, while by highly heat-conductive material attrition grinding at of grain size 100nm
Modified Nano copper particle, highly heat-conductive material particle, plastic additive are pressed quality 200 by grain:100:10 are mixed, and then will
The powder mixed is put into mold, in 1200 DEG C and 300kg/cm2Thermocompressed sintering and forming under conditions of pressure, adds quality
4 parts of antioxidant pressurizing melting, melting temperature are 200 DEG C, 20 min of constant temperature, pressure 500kg/ after being heated to 200 DEG C
cm2。
The hydrophilic modifying process is：It is 4.5 ~ 5.5% to be immersed in NaOH that mass fraction is 6.0 ~ 7.5% and mass fraction
K4O7P2It is modified in solution；The quality of Nanometer Copper, highly heat-conductive material, plastic additive, antioxidant in high heat conduction fiber
Proportioning is 16.0-19.0：5.0-8.0：0.3-0.8：0.1-0.2；
The highly heat-conductive material is boron nitride；
The plastic additive is polyacrylonitrile；
The antioxidant is N- phenyl-1-naphthylamines.
The inner core outsourcing high efficiency heat insulation material of the high heat conduction fiber is perlite/sodium metasilicate/Isooctyl acrylate monomer ternary
Copolymer, the copolymer is by perlite, sodium metasilicate, Isooctyl acrylate monomer copolymer 40-60 in mass ratio:30-45:6-10
It is made, the process of preparation is：It weighs perlite in proportion with electronic balance and is placed in 1 000mL glass beakers with Isooctyl acrylate monomer
In, 100mL distilled water is added after at the uniform velocity stirring 30min, continues to be proportionally added into sodium metasilicate again after mixing slowly 20m in, slowly
Speed stirring is until being uniformly mixed;The mixture for weighing 300g is added in mold, and bulk material is pressed into using 50t forcing presses
After carry out microwave treatment, final take out stands cooling；It need to be microwave irradiation 8-10 minutes under 800KW power after being made.
The fire-resistant antistatic covering of the beam tube outsourcing of the high heat conduction fiber, by modified synthetic resin addition fire proofing with
Auxiliary agent is made；Its constituent and ratio are：Acrylonitrile-butadiene-styrene copolymer resin, barium sulfate, phthalic acid
Diisodecyl ester, phthalic acid two (2- ethyl hexyls) ester, polyphenylene oxide ketone, LDH-MCA nanometer flame retardent materials, oxidic polyethylene
Wax presses 90-120：30-65：20-45：8-16：5-10：3-9：5-7 is formed；Wherein, the system of LDH-MCA nanometer flame retardent materials
It is for process：Cyanuric acid 0.2g is accurately weighed first and melamine 0.2g is placed in 100mL deionized waters, is ultrasonically treated
The sodium hydroxide solution of 0.02mol/L, mixed suspension is added in 2h；Then suspension is added in hydrotalcite and urea
In, Al3+And Mg2+Concentration is respectively 0.05mol/L and 0.10mol/L, and urea concentration 0.60mol/L is ultrasonically treated 1h；It will mix
It closes liquid to be added in 500mL ptfe autoclaves, be reacted for 24 hours at 90 DEG C using hydro-thermal method；After being cooled to room temperature, filtering is simultaneously
Bottom solid residue is collected, deionized water is washed, 50 DEG C of dryings,；Prepare LDH-MCA nanometer flame retardent materials.
Coolant liquid in cooling device is by water, glycerine, polyethylene glycol, methyl α-naphthyl acetate, sodium dihydrogen phosphate, potassium hydroxide, hydroxyl
Base ethylene-diphosphonic acid presses composition, and quality proportioning is：48:30:7:2:1.5:1.5:10.
Claims (10)
1. a kind of method preventing coal mine gob spontaneous combustion disaster using high heat conduction fiber, it is characterised in that：In coal mine gob
Easy spontaneous fine seam be laid with high heat conduction fiber, at working face Air return corner fiber is collected bunchy is connected to outside goaf
Portion, fibre bundle air return way outside goaf are connect with cooling back installation.
2. the method according to claim 1 for preventing coal mine gob spontaneous combustion disaster using high heat conduction fiber, feature exist
In：The easy spontaneous fine seam refers to the main region of oxidization of remained coal self-heating in goaf, i.e., rate of leaking out in goaf is situated between
In 0.24-0.10 m/min or oxygen concentration between the region of 5%-15%.
3. the method according to claim 1 for preventing coal mine gob spontaneous combustion disaster using high heat conduction fiber, feature exist
In：The high heat conduction fiber is base-material by Nanometer Copper, and with highly heat-conductive material and plastic additive, antioxidant is combined,
The high heat conduction fibre diameter being combined into is 3-10mm；
The process of preparation is：It is 10- by the secondary grain size that is ground into of metallic copper powder mechanical grinding device that grain size is 15 μm
The nano copper particle of 100nm, carries out it hydrophilic modifying, while by highly heat-conductive material attrition grinding at the particle of grain size 100nm,
Modified Nano copper particle, highly heat-conductive material particle, plastic additive are pressed into quality 200:100:10 are mixed, then will mixing
Good powder is put into mold, in 1200 DEG C and 300kg/cm2Thermocompressed sintering and forming under conditions of pressure adds quality 3 ~ 5
The antioxidant pressurizing melting of part, melting temperature are 200 DEG C, 20 min of constant temperature, pressure 500kg/ after being heated to 200 DEG C
cm2。
4. the method according to claim 3 for preventing coal mine gob spontaneous combustion disaster using high heat conduction fiber, feature exist
In：The hydrophilic modifying process is：It is 4.5 ~ 5.5% to be immersed in NaOH that mass fraction is 6.0 ~ 7.5% and mass fraction
K4O7P2It is modified in solution；Nanometer Copper, highly heat-conductive material, plastic additive, the quality of antioxidant are matched in high heat conduction fiber
Than for 16.0-19.0：5.0-8.0：0.3-0.8：0.1-0.2；
The highly heat-conductive material is one kind in boron nitride, carbon fiber or graphite；
The plastic additive is one kind in polyacrylonitrile, polyphenylene sulfide or pitch；
The antioxidant is one kind in 2,6-di-tert-butyl p-cresol, butylated hydroxy anisole or N- phenyl-1-naphthylamines.
5. the method according to claim 1 for preventing coal mine gob spontaneous combustion disaster using high heat conduction fiber, feature exist
In：The high heat conduction fiber disperses inside goaf, and Air return corner is gathered into a branch of outside goaf, high heat conduction fiber
Inner core outsourcing high efficiency heat insulation material, beam tube outsourcing fire-resistant antistatic covering.
6. the method according to claim 5 for preventing coal mine gob spontaneous combustion disaster using high heat conduction fiber, feature exist
In：The inner core outsourcing high efficiency heat insulation material of the high heat conduction fiber is perlite, sodium metasilicate, Isooctyl acrylate monomer ternary polymerization
Object, the copolymer is by perlite, sodium metasilicate, Isooctyl acrylate monomer copolymer 40-60 in mass ratio:30-45:6-10 systems
At the process of preparation is：It weighs perlite in proportion with electronic balance and is placed in 1 000mL glass beakers with Isooctyl acrylate monomer
In, 100mL distilled water is added after at the uniform velocity stirring 30min, continues to be proportionally added into sodium metasilicate again after mixing slowly 20m in, slowly
Speed stirring is until being uniformly mixed;The mixture for weighing 300g is added in mold, and bulk material is pressed into using 50t forcing presses
After carry out microwave treatment, final take out stands cooling；It need to be microwave irradiation 8-10 minutes under 800KW power after being made.
7. the method according to claim 5 for preventing coal mine gob spontaneous combustion disaster using high heat conduction fiber, feature exist
In：The fire-resistant antistatic covering of the beam tube outsourcing of the high heat conduction fiber adds fire proofing and auxiliary agent by modified synthetic resin
It is made；Its constituent and ratio are：Acrylonitrile-butadiene-styrene copolymer resin, barium sulfate, phthalic acid two are different
Last of the ten Heavenly stems ester, phthalic acid two (2- ethyl hexyls) ester, polyphenylene oxide ketone, LDH-MCA nanometer flame retardent materials, oxidized polyethylene wax are pressed
90-120：30-65：20-45：8-16：5-10：3-9：5-7 is formed；Wherein, the preparation of LDH-MCA nanometer flame retardent materials
Cheng Wei：Cyanuric acid 0.2g is accurately weighed first and melamine 0.2g is placed in 100mL deionized waters, is ultrasonically treated 2h, is added
Enter the sodium hydroxide solution of 0.02mol/L, mixed suspension；Then hydrotalcite and urea are added in suspension, Al3+
And Mg2+Concentration is respectively 0.05mol/L and 0.10mol/L, and urea concentration 0.60mol/L is ultrasonically treated 1h；Mixed liquor is added
In 500mL ptfe autoclaves, reacted for 24 hours at 90 DEG C using hydro-thermal method；After being cooled to room temperature, filters and collect bottom
LDH-MCA nanometer flame retardent materials are prepared in solid residue, deionized water washing, 50 DEG C of dryings.
8. the method according to claim 1 for preventing coal mine gob spontaneous combustion disaster using high heat conduction fiber, feature exist
In：When heat conducting fiber is inadequate, when needing continued access, the connector of two heat conducting fibers of connection uses quick coupling.
9. the method according to claim 1 for preventing coal mine gob spontaneous combustion disaster using high heat conduction fiber, feature exist
In：The cooling device is made of heat conducting pipe, coolant liquid, transfer pipeline, valve.
10. the method according to claim 9 for preventing coal mine gob spontaneous combustion disaster using high heat conduction fiber, feature exist
In：Coolant liquid in cooling device is by water, glycerine, polyethylene glycol, methyl α-naphthyl acetate, sodium dihydrogen phosphate, potassium hydroxide, hydroxy ethylidene
Di 2 ethylhexyl phosphonic acid presses composition, and quality proportioning is：48:30:7:2:1.5:1.5:10.
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| SU1234661A1 (en) * | 1984-12-25 | 1986-05-30 | Тульский Ордена Трудового Красного Знамени Политехнический Институт | Method of detecting the heart of self-igntion of coal in coal body |
| SU1362139A2 (en) * | 1985-12-03 | 1995-08-27 | Московский химико-технологический институт им.Д.И.Менделеева | Method for extinguishing seats of spontaneous fires in solid mineral accumulations |
| CN102080569B (en) * | 2010-12-10 | 2014-03-19 | 中煤科工集团重庆研究院 | Distributed optical fiber temperature measurement-based fire early warning method for belt conveyor |
| CN201876588U (en) * | 2010-12-10 | 2011-06-22 | 煤炭科学研究总院重庆研究院 | Temperature sensing optical cable for monitoring downhole temperature of coalmine |
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