CN102173722A - Composite gel for preventing spontaneous combustion of coal - Google Patents
Composite gel for preventing spontaneous combustion of coal Download PDFInfo
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- CN102173722A CN102173722A CN 201110038849 CN201110038849A CN102173722A CN 102173722 A CN102173722 A CN 102173722A CN 201110038849 CN201110038849 CN 201110038849 CN 201110038849 A CN201110038849 A CN 201110038849A CN 102173722 A CN102173722 A CN 102173722A
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- water
- coal
- spontaneous combustion
- composite gel
- gel
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- 239000003245 coal Substances 0.000 title claims abstract description 44
- 239000002131 composite material Substances 0.000 title claims abstract description 31
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 27
- 230000002269 spontaneous effect Effects 0.000 title claims abstract description 27
- 239000000463 material Substances 0.000 claims abstract description 34
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 30
- 239000011347 resin Substances 0.000 claims abstract description 27
- 229920005989 resin Polymers 0.000 claims abstract description 27
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 22
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 19
- 150000003839 salts Chemical group 0.000 claims abstract description 16
- 239000002250 absorbent Substances 0.000 claims abstract description 15
- 235000019353 potassium silicate Nutrition 0.000 claims abstract description 15
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims abstract description 15
- 239000007864 aqueous solution Substances 0.000 claims abstract description 4
- 238000010528 free radical solution polymerization reaction Methods 0.000 claims abstract description 4
- 238000010557 suspension polymerization reaction Methods 0.000 claims abstract description 4
- 239000000203 mixture Substances 0.000 claims description 25
- 239000004927 clay Substances 0.000 claims description 24
- 230000002745 absorbent Effects 0.000 claims description 13
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 12
- SVPXDRXYRYOSEX-UHFFFAOYSA-N bentoquatam Chemical compound O.O=[Si]=O.O=[Al]O[Al]=O SVPXDRXYRYOSEX-UHFFFAOYSA-N 0.000 claims description 8
- 239000005995 Aluminium silicate Substances 0.000 claims description 7
- 235000012211 aluminium silicate Nutrition 0.000 claims description 7
- NLYAJNPCOHFWQQ-UHFFFAOYSA-N kaolin Chemical compound O.O.O=[Al]O[Si](=O)O[Si](=O)O[Al]=O NLYAJNPCOHFWQQ-UHFFFAOYSA-N 0.000 claims description 7
- UIIMBOGNXHQVGW-UHFFFAOYSA-M Sodium bicarbonate Chemical group [Na+].OC([O-])=O UIIMBOGNXHQVGW-UHFFFAOYSA-M 0.000 claims description 6
- 235000017557 sodium bicarbonate Nutrition 0.000 claims description 3
- 229910000030 sodium bicarbonate Inorganic materials 0.000 claims description 3
- 238000006116 polymerization reaction Methods 0.000 claims description 2
- UIIMBOGNXHQVGW-DEQYMQKBSA-M Sodium bicarbonate-14C Chemical group [Na+].O[14C]([O-])=O UIIMBOGNXHQVGW-DEQYMQKBSA-M 0.000 abstract description 12
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 6
- 229910052760 oxygen Inorganic materials 0.000 abstract description 6
- 239000001301 oxygen Substances 0.000 abstract description 6
- 239000004615 ingredient Substances 0.000 abstract 1
- 238000009413 insulation Methods 0.000 abstract 1
- 238000001879 gelation Methods 0.000 description 12
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 10
- 239000000084 colloidal system Substances 0.000 description 10
- 230000000694 effects Effects 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 229910021529 ammonia Inorganic materials 0.000 description 5
- 239000007789 gas Substances 0.000 description 5
- 238000001816 cooling Methods 0.000 description 3
- 239000002002 slurry Substances 0.000 description 3
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000009825 accumulation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 238000004079 fireproofing Methods 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 229910052756 noble gas Inorganic materials 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 230000007096 poisonous effect Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000011780 sodium chloride Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000009967 tasteless effect Effects 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
Landscapes
- Fire-Extinguishing Compositions (AREA)
Abstract
The invention discloses a composite gel for preventing spontaneous combustion of coal, which comprises the following ingredients in percentage by weight: 5 to 8 percent of base material, 2 to 5 percent of accelerating agent, 6 to 9 percent of aggregate material, 0.5 to 3 of water-retaining agent and the balance of water. The base material is water glass, the accelerating agent is sodium bicarbonate, the aggregate material is diatomite, and the water-retaining agent is salt-resistant highly-water-absorbent resin. The salt-resistant highly-water-absorbent resin is made by aqueous solution polymerization or reverse-phase suspension polymerization, and has a water absorbency of 1250 to 1355 g<g> and a salt absorbency of 100 to 120 g<g>. The produced gel is excellent in leak stoppage, oxygen insulation, temperature drop and retardancy, has good fluidity and strong moisture-retaining property and can slow water loss. The gel products with different gelling time are made by adjusting the proportions. The gel is convenient and flexible in use, has strong adaptability, and can be widely applied to various high-risk and self-combustible coal areas.
Description
Technical field
The present invention relates to a kind of fireproof material that is used for the colliery, particularly a kind of is the anti-fire extinguishing composite gel that main component prevents spontaneous combustion of coal with diatomite.
Background technology
China's coal-mine field complicated condition, environment are abominable, and annual various accidents all can cause huge economy and property damage to country, and wherein, spontaneous combustion of coal is exactly a universal phenomenon.
In China, the mine scope that spontaneous combustion is got angry is wide, quantity is many, and mine and miner's personnel safety in serious threat.According to statistics, northern China 7 province's outcrop of coal seam fire district areas reach 720km
2, totally burn coal amount 4,200,000,000 t, at present still to burn the speed development of 5000～6,000 ten thousand t coals every year.And the mine coal seam freely burning fire is also very serious, and there is the spontaneous combustion ignition hazard in the state-owned emphasis colliery more than 50%, and the super high seam exploitation is particularly serious.When spontaneous combustion takes place in the coal seam, at high temperature decompose and oxidation discharges a large amount of toxic and harmfuls, simultaneously, high temperature impels that contained gas discharges in the coal seam, might cause gas explosion, so spontaneous combustion of coal seam has great hazardness, must be fast, put out completely.
But coal bed fire is different from the fire of other type, and himself inherent characteristic is arranged, and for example: burning things which may cause a fire disaster point is hidden, and relative position is higher usually, is three-dimensional and distributes; The loose coal accumulation of heat is good, and heat is difficult for scattering and disappearing; Energy low temperature oxygen deprivation oxidation, and the high more speed of response of temperature is fast more, and thermal discharge is many more; Produce the circulation of gas hot-fluid by the temperature difference, the spontaneous combustion convection current is from oxygen supply etc.According to the characteristics of above spontaneous combustion of coal seam, the spontaneous combustion of coal seam preventing and extinguishing fire technology should have following characteristics: 1, reduce the coal body internal temperature, improve reaction activity; 2, reduce or completely cut off the oxygen level of the loose coal of flowing through; 3, have certain heat resistance, be difficult for producing high temperature gas flow circumference loose coal etc.Present water filling, grouting, notes stopping agent, annotate noble gas etc. and only have wherein one or both characteristics, so have certain limitation when putting out coal bed fire.
Gel fire extinguishing technology be the nineties in 20th century at the novel coal seam of China's widespread use preventing and extinguishing fire technology, it has good flowability before becoming glue, is convenient to the big flow of pipe network, the remote conveying; Colloid can rest on eminence in the loose coal, and the parcel coal body, stops up the passage that leaks out at absorbing and cooling temperature, and has good high-temperature stability, can not produce a large amount of water vapour, can reduce the danger of water-gas blast, and control also reduces intensity of a fire tempo.In addition,, be suitable for all kinds of personnel in the pit's operations because technology is simple, easy to operate, so, be used more widely in the colliery that spontaneous combustion danger is arranged.
But existing Gel fire extinguishing technology also exposes problems in application in practice, for example: discharge ammonia in the colloid forming process, pollute underground air, the harm workers ' health; Colloidal intensity is lower, and is rigidity, in case destroyedly just can not recover, therefore after pressure injection is finished, meeting that the ore deposit presses can pressure break, influences leak stopping wind effect; The gel cost is generally all at 60 yuan/m
3More than, be higher than costs such as thick loess grouting, hydraulic sand filling, be not suitable for big area and fill.
Summary of the invention
In view of above-mentioned the deficiencies in the prior art, it is the anti-fire extinguishing composite gel material of main raw material with diatomite that the present invention aims to provide a kind of, with control coal seam mine spontaneous combustion, reaches effective leak stopping, oxygen barrier, cooling and resistance and turns usefulness into.
The present invention is achieved through the following technical solutions:
A kind of composite gel that prevents spontaneous combustion of coal, each composition comprises by mass percentage: 5～8% base-material, 2～5% setting accelerator, 6～9% aggregate, 0.5～3% water-holding agent, all the other compositions are water, described base-material is a water glass; Described setting accelerator is a sodium bicarbonate; Described aggregate is a diatomite; Described water-holding agent is an anti salt super absorbent resin, and anti salt super absorbent resin is for passing through aqueous solution polymerization or the prepared High hydrophilous resin of inverse suspension polymerization, and its water absorbent rate is 1250～1350gg
-1, inhaling the salt multiplying power is 100～120gg
-1
The High hydrophilous resin of described polymerization gained is poly-to be that poly-(acrylic acid/clay) High hydrophilous resin, its clay component are a kind of in wilkinite or the calcined kaolin.
The present invention compares with present fireproofing extinguishing materials of composite colloid and has the following advantages:
1, setting accelerator of the present invention is a sodium bicarbonate, has overcome the defective of Ammonia setting accelerator release ammonia, and is nontoxic, harmless, tasteless, do not pollute working environment at coal mines; Simultaneously, compare cheaply with other no ammonia setting accelerator, be suitable for the down-hole big area and promote the use of.
2, the present invention chooses diatomite as aggregate, and its specific surface area is big, forms number of chemical key and intermolecular forces between energy and colloid, colloid intensity is increased, and dehydration slowly can be soaked into the space of coal body inside, more help the active group of inerting coal body inside, thereby reach the purpose of anti-fire extinguishing.
3, the present invention adopts anti salt super absorbent resin as water-holding agent, overcome because of adding water-soluble high-molecular material and met problems such as current mistake, and its water absorbent rate height, salt resistant character are good, general water-retaining capacity reaches more than the 500g/g, and its reticulated structure more helps strengthening its adhesivity on the coal body surface than adding linear polymeric.
The composite gel finished of preparation has avoided single colloidal intensity lower, and is rigidity, in case destroyedly just can not recover, after pressure injection is finished, meets the ore deposit and presses and understand pressure break, influences the shortcoming of leak stopping wind effect.The thixotropy colloid that forms can recover mobile when running into above the external force pressure of its yield strength, external force becomes stable colloid again after disappearing, can carry out the secondary shutoff to moving the new crack that frame, ore deposit pressure etc. cause, have very strong leak stopping, oxygen barrier, cooling and resistance and turn usefulness into.In actual applications, according to factors such as on-site actual situations, place to use (as: worked-out section, fire dam, back, coal-face etc.) and corresponding gelation times, the anti-fire extinguishing composite gel of the different gelation times of concrete preparation, different viscosity, different colloid intensity, suitability is good, and anti-fire extinguishing is remarkably productive.
Embodiment
A kind of composite gel that prevents spontaneous combustion of coal of the present invention, each composition comprises by mass percentage: 5～8% base-material, 2～5% setting accelerator, 6～9% aggregate, 0.5～3% water-holding agent, all the other compositions are water.Wherein, base-material is selected water glass for use, water glass stable performance, low, the good springiness of intensity, and this is one of colloidal materials that is applied to the earliest the anti-fire extinguishing of mine as viscous liquid.Setting accelerator is selected sodium bicarbonate for use, can not decompose poisonous, obnoxious flavoures such as producing ammonia in hot environment, and it is healthy to be beneficial to environmental protection and workman, and with low cost, and has realized that by orthogonal experiment method gelation time is controlled, is convenient to effective use.Aggregate is a diatomite, and specific surface area of diatomite is big, and the colloid density behind the one-tenth glue is even, and intensity is big, and dehydration slowly can be soaked into the space of coal body inside, more helps the active group of inerting coal body inside, thereby reaches the effect of anti-fire extinguishing.Water-holding agent is an anti salt super absorbent resin, and anti salt super absorbent resin is for passing through prepared poly-(acrylic acid/clay) High hydrophilous resin of aqueous solution polymerization or inverse suspension polymerization, and its water absorbent rate is 1250～1350gg
-1, inhaling salt (0.9wt.%NaCl) multiplying power is 100～120gg
-1Wherein, clay component is a kind of in wilkinite or the calcined kaolin.Anti salt super absorbent resin can constantly absorb moisture from air makes coal body keep moistening always, plays the further effect of anti-fire extinguishing.
During use, at first water glass, sodium bicarbonate, diatomite and anti salt super absorbent resin are added water respectively and be mixed with slurries, by gel pump that the slurries blend is even then, and utilize gel pump that slurries are poured into the place of the required anti-fire extinguishing in down-hole, thus form the colloid fireproof material.It is used to handle local fiery district, high-temperature zone and hidden danger point.
Below in conjunction with embodiment the present invention is further elaborated:
Embodiment 1
A kind of composite gel that prevents spontaneous combustion of coal, each composition comprises by mass percentage: 5% base-material, 2% setting accelerator, 6% aggregate, 0.5% water-holding agent, all the other compositions are water.Wherein, base-material is a water glass, and setting accelerator is a sodium bicarbonate, and aggregate is a diatomite, and water-holding agent is poly-(acrylic acid/clay) High hydrophilous resin, and clay is a wilkinite, and the composite gel gelation time that its proportioning forms is 3min.
Embodiment 2
A kind of composite gel that prevents spontaneous combustion of coal, each composition comprises by mass percentage: 8% base-material, 3% setting accelerator, 9% aggregate, 1% water-holding agent, all the other compositions are water.Wherein, base-material is a water glass, and setting accelerator adopts sodium bicarbonate, and aggregate is a diatomite, and water-holding agent is poly-(acrylic acid/clay) High hydrophilous resin, and clay is a calcined kaolin, and the composite gel gelation time that its proportioning forms is 2min.
Embodiment 3
A kind of composite gel that prevents spontaneous combustion of coal, each composition comprises by mass percentage: 6% base-material, 4% setting accelerator, 7% aggregate, 0.5% water-holding agent, all the other compositions are water.Wherein, base-material is a water glass, and setting accelerator is a sodium bicarbonate, and aggregate is a diatomite, and water-holding agent is poly-(acrylic acid/clay) High hydrophilous resin, and clay is a wilkinite, and the composite gel gelation time that its proportioning forms is 1min.
Embodiment 4
A kind of composite gel that prevents spontaneous combustion of coal, each composition comprises by mass percentage: 7% base-material, 2% setting accelerator, 8% aggregate, 1.5% water-holding agent, all the other compositions are water.Wherein, base-material is a water glass, and setting accelerator is a sodium bicarbonate, and aggregate is a diatomite, and water-holding agent is poly-(acrylic acid/clay) High hydrophilous resin, and clay is a calcined kaolin, and the composite gel gelation time that its proportioning forms is 6min.
Embodiment 5
A kind of composite gel that prevents spontaneous combustion of coal, each composition comprises by mass percentage: 5% base-material, 5% setting accelerator, 6% aggregate, 0.5% water-holding agent, all the other compositions are water.Wherein, base-material is a water glass, and setting accelerator is a sodium bicarbonate, and aggregate is a diatomite, and water-holding agent is poly-(acrylic acid/clay) High hydrophilous resin, and clay is a calcined kaolin, and the composite gel gelation time that its proportioning forms is 30s.
Embodiment 6
A kind of composite gel that prevents spontaneous combustion of coal, each composition comprises by mass percentage: 8% base-material, 2% setting accelerator, 9% aggregate, 2% water-holding agent, all the other compositions are water.Wherein, base-material is a water glass, and setting accelerator is a sodium bicarbonate, and aggregate is a diatomite, and water-holding agent is poly-(acrylic acid/clay) High hydrophilous resin, and clay is a calcined kaolin, and the composite gel gelation time that its proportioning forms is 7min.
Embodiment 7
A kind of composite gel that prevents spontaneous combustion of coal, each composition comprises by mass percentage: 5% base-material, 4% setting accelerator, 6% aggregate, 3% water-holding agent, all the other compositions are water.Wherein, base-material is a water glass, and setting accelerator is a sodium bicarbonate, and aggregate is a diatomite, and water-holding agent is poly-(acrylic acid/clay) High hydrophilous resin, and clay is a wilkinite, and the composite gel gelation time that its proportioning forms is 50s.
Embodiment 8
A kind of composite gel that prevents spontaneous combustion of coal, each composition comprises by mass percentage: 7% base-material, 3% setting accelerator, 6% aggregate, 0.5% water-holding agent, all the other compositions are water.Wherein, base-material is a water glass, and setting accelerator adopts sodium bicarbonate, and aggregate is a diatomite, and water-holding agent is poly-(acrylic acid/clay) High hydrophilous resin, and clay is a wilkinite, and the composite gel gelation time that its proportioning forms is 1.5min.
Embodiment 9
A kind of composite gel that prevents spontaneous combustion of coal, each composition comprises by mass percentage: 8% base-material, 5% setting accelerator, 9% aggregate, 3% water-holding agent, all the other compositions are water.Wherein, base-material is a water glass, and setting accelerator is a sodium bicarbonate, and aggregate is a diatomite, and water-holding agent is poly-(acrylic acid/clay) High hydrophilous resin, and clay is a wilkinite, and the composite gel gelation time that its proportioning forms is 1min.
Among the foregoing description 1-9, composite gel all has good anti-extinguishing property, and the fire extinguishing effect is very good.
Claims (2)
1. a composite gel that prevents spontaneous combustion of coal is characterized in that, each composition comprises by mass percentage: 5～8% base-material, 2～5% setting accelerator, 6～9% aggregate, 0.5～3% water-holding agent, and all the other compositions are water, described base-material is a water glass; Described setting accelerator is a sodium bicarbonate; Described aggregate is a diatomite; Described water-holding agent is an anti salt super absorbent resin, and anti salt super absorbent resin is for passing through aqueous solution polymerization or the prepared High hydrophilous resin of inverse suspension polymerization, and its water absorbent rate is 1250～1350gg
-1, inhaling the salt multiplying power is 100～120gg
-1
2. a kind of composite gel that prevents spontaneous combustion of coal according to claim 1, it is characterized in that, the High hydrophilous resin of described polymerization gained is poly-to be that poly-(acrylic acid/clay) High hydrophilous resin, its clay component are a kind of in wilkinite or the calcined kaolin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110038849 CN102173722A (en) | 2011-02-16 | 2011-02-16 | Composite gel for preventing spontaneous combustion of coal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110038849 CN102173722A (en) | 2011-02-16 | 2011-02-16 | Composite gel for preventing spontaneous combustion of coal |
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| Publication Number | Publication Date |
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| CN102173722A true CN102173722A (en) | 2011-09-07 |
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|---|---|---|---|
| CN 201110038849 Pending CN102173722A (en) | 2011-02-16 | 2011-02-16 | Composite gel for preventing spontaneous combustion of coal |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102746918A (en) * | 2012-07-31 | 2012-10-24 | 广州唯普电力科技有限公司 | Method for restraining coal pile spontaneous ignition, special inhibitor of method and preparation method of inhibitor |
| CN103203089A (en) * | 2013-03-20 | 2013-07-17 | 北京工业大学 | Extinguishing material for coal mine, and production method thereof |
| CN103232217A (en) * | 2013-05-06 | 2013-08-07 | 中国矿业大学(北京) | Mine loess composite gel fire preventing and extinguishing material and preparation method of material |
| CN104803652A (en) * | 2015-01-12 | 2015-07-29 | 贾博宇 | Novel coal mine fireproof leaking-stoppage colloid material |
| CN105697051A (en) * | 2016-03-10 | 2016-06-22 | 辽宁工程技术大学 | Iron-based deoxidation densification stopping agent preventing spontaneous combustion of coal |
| CN106121711A (en) * | 2016-06-22 | 2016-11-16 | 陈舸 | A kind of high fire-retardance pliable and tough artesian water glass combined casting material and preparation method |
| CN107929993A (en) * | 2017-11-16 | 2018-04-20 | 北京市化工职业病防治院 | A kind of fire extinguishing colloidal materials and preparation method and application |
| CN108298938A (en) * | 2018-02-12 | 2018-07-20 | 内蒙古伊泰煤炭股份有限公司 | Gel smother material, fire extinguishing material and sealing agent |
| CN108343465A (en) * | 2018-02-12 | 2018-07-31 | 内蒙古伊泰煤炭股份有限公司 | Extinguishing method |
| CN108343464A (en) * | 2018-01-31 | 2018-07-31 | 中国矿业大学 | A kind of anti-oxidant retardant of mining hydrophilic and preparation method thereof |
| CN109578053A (en) * | 2019-01-29 | 2019-04-05 | 陈舸 | A kind of sodium silicate gel combined casting material and its preparation method and application |
| CN109899104A (en) * | 2019-01-21 | 2019-06-18 | 山东科技大学 | A kind of economic and environment-friendly type gel foam for preventing and treating spontaneous combustionof coal |
| CN111228708A (en) * | 2020-01-14 | 2020-06-05 | 西京学院 | Quick-setting slurry for extinguishing fire and reducing temperature of gangue dump, and preparation method and application thereof |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102746918B (en) * | 2012-07-31 | 2014-04-09 | 广州普凯环保科技有限公司 | Method for restraining coal pile spontaneous ignition, special inhibitor of method and preparation method of inhibitor |
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| CN103232217A (en) * | 2013-05-06 | 2013-08-07 | 中国矿业大学(北京) | Mine loess composite gel fire preventing and extinguishing material and preparation method of material |
| CN104803652A (en) * | 2015-01-12 | 2015-07-29 | 贾博宇 | Novel coal mine fireproof leaking-stoppage colloid material |
| CN105697051A (en) * | 2016-03-10 | 2016-06-22 | 辽宁工程技术大学 | Iron-based deoxidation densification stopping agent preventing spontaneous combustion of coal |
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| CN109899104A (en) * | 2019-01-21 | 2019-06-18 | 山东科技大学 | A kind of economic and environment-friendly type gel foam for preventing and treating spontaneous combustionof coal |
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Application publication date: 20110907 |