CN104944893A - Grouting material capable of improving water retention capacity of water glass composite colloid used in coal mine and preparation method of grouting material - Google Patents
Grouting material capable of improving water retention capacity of water glass composite colloid used in coal mine and preparation method of grouting material Download PDFInfo
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- CN104944893A CN104944893A CN201510324968.4A CN201510324968A CN104944893A CN 104944893 A CN104944893 A CN 104944893A CN 201510324968 A CN201510324968 A CN 201510324968A CN 104944893 A CN104944893 A CN 104944893A
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Abstract
The invention discloses a grouting material capable of improving the water retention capacity of water glass composite colloid used in a coal mine and a preparation method of the grouting material and belongs to the technical field of fire-fighting materials. The grouting material is formed by uniformly mixing a polymer additive and a raw water glass composite colloidal material, wherein the polymer additive accounts for 0.1-1% of the weight percentage of the raw water glass composite colloidal material; the polymer additive comprises any one of starch, cellulose, anionic polyacrylamide and cationic polyacrylamide. According to the grouting material capable of improving the water retention capacity of water glass complex colloid used in the coal mine and the preparation method of the grouting material, provided by the invention, the water retention capacity is obviously improved if the grouting material is compared with the raw water glass composite colloidal material, and the finally obtained jet-grouted soilcrete does not crack; the sources of raw materials are extensive, the cost is low, the products have no toxic and side effect on human bodies, and cause no pollution to underground wells.
Description
Technical field
The present invention relates to a kind of injection material and preparation method of coal mine glass composite gel water retention property of improvement, belong to fireproof material technical field.
Background technology
China is that a coal resource rich reserves also consumes huge country simultaneously, and in the last few years, numerous high-tech coal-mining technique was applied to colliery industry, but the occurrence frequency of China's coal-mine disaster is compared other countries of the world and still remained high.Particularly coal-mine fire problem, not only causes a large amount of losses of coal resources, also causes serious threat to coal mine working personnel personnel safety simultaneously.Thick loess grouting material is more traditional material being applied to preventing and extinguishing fire of coal mine, but due to defects such as its consolidation strength is low, water retention property is poor, have water-gas to explode threats, makes it use and be very limited.In the last few years, on former slurried material basis, add water glass, a kind of NEW TYPE OF COMPOSITE technique of gel extinguishing fires material of setting accelerator achieves good result in improvement coal-mine fire problem.Under normal temperature, water glass and reaction of sodium bicarbonate generate silicic acid and sodium carbonate, and silicic acid further reaction can generate multi-silicate, and the product finally obtained is gel induration, the bulk composition of Here it is composite gel.But still there is water retention property difference in it, induration has the series of problems such as cracking.
Summary of the invention
Object of the present invention is intended to overcome above shortcoming, proposes a kind of water retention property good, final induration without cracking behavior and cheap modified version coal mine glass composite gel injection material.
The present invention is achieved through the following technical solutions:
A kind of fire extinguishing injection material of modified version coal mine glass composite gel water-retentivity, it is characterized in that, be made up of mixed uniformly polymeric additive and former water glass composite gel material, wherein polymeric additive accounts for the weight percent of former water glass composite gel material and is: 0.1-1%.The percent mass composition of described former water glass composite gel material: 1%-3% sodium bicarbonate, 7%-18% wilkinite, 7%-17% water glass and 70%-72% tap water reaction gained.Described polymeric additive is selected from any one of starch, Mierocrystalline cellulose, anionic polyacrylamide and cationic polyacrylamide.
Above-mentioned preferred polymers additive is the Mierocrystalline cellulose of 0.1-0.2%.
The percent mass composition of former water glass composite gel material described above is preferred: 2% sodium bicarbonate, 10% wilkinite, 17% water glass and 71% tap water reaction gained.
A preparation method for modified version coal mine glass fireproofing extinguishing materials of composite colloid, concrete steps comprise:
A) polymeric additive is dissolved in tap water, is stirred to solution system and stablizes, and polymer beads soilless sticking phenomenon.
B) sodium bicarbonate powder is joined in the solution of a) step gained, be stirred to sodium bicarbonate powder and dissolve completely, exist without white particle sprills in solution.Then in solution, slowly add wilkinite, be stirred to bentonite clay particle and be uniformly dispersed.
C) glass solution of fetching water joins in the solution of b) step gained, is stirred to bentonite clay particle no longer sedimentation.
A kind of modified version coal mine glass fireproofing extinguishing materials of composite colloid of the present invention, comparing former water glass fireproofing extinguishing materials of composite colloid has following significantly advantage:
1., under the prerequisite of the coagulability and stopping property that do not affect former water glass fireproofing extinguishing materials of composite colloid, the water retention property of the induration of gained has obvious lifting.
2. the time of coagulation realizing material is controlled within the scope of certain hour; Under equal conditions, the time of coagulation of relatively not adding polymeric additive time of coagulation of adding polymeric additive extends to some extent.
3. solve the problem that former water glass composite gel material is easy to crack.
4. the interpolation of the polymkeric substance of low cost, few consumption, does not improve the synthesis cost of water glass composite gel material.
Embodiment
Below in conjunction with embodiment, the present invention will be further described, but the present invention is not limited to following examples.
Embodiment 1
1) under normal temperature, by 0.1g starch dissolution in 71g tap water, be stirred to solution system and stablize, and polymer beads soilless sticking phenomenon.
2) 2g sodium bicarbonate powder is joined 1) in the solution of step gained, be stirred to sodium bicarbonate powder and dissolve completely, exist without white particle sprills in solution.Then in solution, slowly add 10g wilkinite, be stirred to bentonite clay particle and be uniformly dispersed.
3) get 17g water glass solution and join 2) in the solution of step gained, be stirred to bentonite clay particle no longer sedimentation, then leave standstill to the complete consolidation of system.
The presetting period of the composite gel material of gained is 5min30s, and final setting time is 7min32s; The percentage of water loss leaving standstill 30 days after condensation under normal temperature is 75.76%, and induration is without cracking phenomena.
Embodiment 2
1) under normal temperature, by 0.1g cellulose dissolution in 71g tap water, be stirred to solution system and stablize, and polymer beads soilless sticking phenomenon.
2) 2g sodium bicarbonate powder is joined 1) in the solution of step gained, be stirred to sodium bicarbonate powder and dissolve completely, exist without white particle sprills in solution.Then in solution, slowly add 10g wilkinite, be stirred to bentonite clay particle and be uniformly dispersed.
3) get 17g water glass solution and join 2) in the solution of step gained, be stirred to bentonite clay particle no longer sedimentation, then leave standstill to the complete consolidation of system.
The presetting period of the composite gel material of gained is 7min50s, and final setting time is 10min17s; The percentage of water loss leaving standstill 30 days after condensation under normal temperature is 74.57%, and induration is without cracking phenomena.
Embodiment 3
1) under normal temperature, 0.2g cationic polyacrylamide is dissolved in 71g tap water, is stirred to solution system and stablizes, and polymer beads soilless sticking phenomenon.
2) 2g sodium bicarbonate powder is joined 1) in the solution of step gained, be stirred to sodium bicarbonate powder and dissolve completely, exist without white particle sprills in solution.Then in solution, slowly add 10g wilkinite, be stirred to bentonite clay particle and be uniformly dispersed.
3) get 17g water glass solution and join 2) in the solution of step gained, be stirred to bentonite clay particle no longer sedimentation, then leave standstill to the complete consolidation of system.
The presetting period of the composite gel material of gained is 6min48s, and final setting time is 11min47s; The percentage of water loss leaving standstill 30 days after condensation under normal temperature is 77.14%, and induration is without cracking phenomena.
Claims (4)
1. the fire extinguishing injection material of a modified version coal mine glass composite gel water-retentivity, it is characterized in that, be made up of mixed uniformly polymeric additive and former water glass composite gel material, wherein polymeric additive accounts for the weight percent of former water glass composite gel material and is: 0.1-1%.The percent mass composition of described former water glass composite gel material: 1%-3% sodium bicarbonate, 7%-18% wilkinite, 7%-17% water glass and 70%-72% tap water reaction gained; Described polymeric additive is selected from any one of starch, Mierocrystalline cellulose, anionic polyacrylamide and cationic polyacrylamide.
2., according to the fire extinguishing injection material of a kind of modified version coal mine glass composite gel water-retentivity of claim 1, it is characterized in that, polymeric additive is the Mierocrystalline cellulose of 0.1-0.2%.
3. according to the fire extinguishing injection material of a kind of modified version coal mine glass composite gel water-retentivity of claim 1, it is characterized in that, the percent mass composition of described former water glass composite gel material is preferred: 2% sodium bicarbonate, 10% wilkinite, 17% water glass and 71% tap water.
4. prepare the method for the fire extinguishing injection material of any one of claim 1-3 modified version coal mine glass composite gel water-retentivity, it is characterized in that, comprise the following steps:
A) polymeric additive is dissolved in tap water, is stirred to solution system and stablizes, and polymer beads soilless sticking phenomenon;
B) sodium bicarbonate powder is joined in the solution of a) step gained, be stirred to sodium bicarbonate powder and dissolve completely, exist without white particle sprills in solution.Then in solution, slowly add wilkinite, be stirred to bentonite clay particle and be uniformly dispersed;
C) glass solution of fetching water joins in the solution of b) step gained, is stirred to bentonite clay particle no longer sedimentation.
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Cited By (7)
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| 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 |
| 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 |
| 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 |
| CN112354108A (en) * | 2020-09-30 | 2021-02-12 | 中国矿业大学 | Mine fire prevention and extinguishing gel material and preparation method thereof |
| CN113072355A (en) * | 2021-02-22 | 2021-07-06 | 东方雨虹建筑修缮技术有限公司 | Nano silicon-based grouting material and application |
| CN113209539A (en) * | 2021-05-17 | 2021-08-06 | 重庆工程职业技术学院 | Coal mine composite colloid fire prevention and extinguishing material and preparation method thereof |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN106121711B (en) * | 2016-06-22 | 2020-08-28 | 陈舸 | High-flame-retardant flexible pressure-bearing water glass composite grouting material and preparation method thereof |
| 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 |
| 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 |
| CN109578053B (en) * | 2019-01-29 | 2020-08-04 | 陈舸 | Water glass gel composite grouting material and preparation method and application thereof |
| CN112354108A (en) * | 2020-09-30 | 2021-02-12 | 中国矿业大学 | Mine fire prevention and extinguishing gel material and preparation method thereof |
| CN112354108B (en) * | 2020-09-30 | 2021-12-21 | 中国矿业大学 | Mine fire prevention and extinguishing gel material and preparation method thereof |
| CN113072355A (en) * | 2021-02-22 | 2021-07-06 | 东方雨虹建筑修缮技术有限公司 | Nano silicon-based grouting material and application |
| CN113072355B (en) * | 2021-02-22 | 2023-02-03 | 东方雨虹建筑修缮技术有限公司 | Nano silicon-based grouting material and application |
| CN113209539A (en) * | 2021-05-17 | 2021-08-06 | 重庆工程职业技术学院 | Coal mine composite colloid fire prevention and extinguishing material and preparation method thereof |
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Application publication date: 20150930 |