CN103203089A - Extinguishing material for coal mine, and production method thereof - Google Patents
Extinguishing material for coal mine, and production method thereof Download PDFInfo
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- CN103203089A CN103203089A CN2013100904868A CN201310090486A CN103203089A CN 103203089 A CN103203089 A CN 103203089A CN 2013100904868 A CN2013100904868 A CN 2013100904868A CN 201310090486 A CN201310090486 A CN 201310090486A CN 103203089 A CN103203089 A CN 103203089A
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- attapulgite
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Abstract
The invention relates to extinguishing material for coal mine and a production method thereof and belongs to the field of coal mine materials for fire preventing and extinguishing. The extinguishing material is made by mixing well 5-15wt% of attapulgite, 1-5wt% of salt-resistant super-absorbent polymer and water. Preparation of the salt-resistant super-absorbent polymer includes: adding 3 parts of acrylic acid into an ice bath, neutralizing with sodium hydroxide, adding 4 parts of acrylamide to from a monomer, and sequentially adding potassium peroxodisulfate accounting for 0.25% of the total weight of the monomer and N, N-methylene bisacrylamide accounting for 0.25% of the total weight of the monomer; heating a water bath to 70 DEG C, allowing for reaction for 7h, and filtering and drying the cooled reaction product. Aggregate using the attapulgite as colloid is fine in suspendability and large in specific area, the obtained colloid is remarkably uniform and long in shelf life.
Description
Technical field
The invention belongs to preventing and extinguishing fire of coal mine material field, be specifically related to a kind of colliery extinguish material and preparation method thereof.
Technical background
China's coal-mine field complicated condition, environment are abominable, and annual various accidents all can cause huge economy and property loss to country, and wherein, spontaneous combustionof 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 personal safety in serious threat.Spontaneous combustionof coal is a kind of natural phenomena of objective reality, air enters coal body inside with the coal body crack under natural situation, the spontaneous compound a large amount of heats of emitting of coal oxygen, this heat is gathered under certain accumulation of heat condition, when the heat that gathers can satisfy the needs of coal spontaneous combustion process development, the coal body temperature constantly rises, and finally causes spontaneous combustionof coal.Coal in China spontaneous combustion loss is serious, at present to burn the speed development of ten thousand tons of coals of 5000-6000 every year.
Gel fire extinguishing technology is traditional, simple, a reliable preventing and extinguishing fire technology.Colloidal materials is transported to the zone that spontaneous combustionof coal may take place or freely burning fire has taken place through the grout pipe line of laying, with the generation that prevents the spontaneous combustion of coal seam phenomenon or carry out the freely burning fire fire extinguishing and handle.Its principle is colloidal materials parcel coal body, absorbs heat, plays that isolated coal contacts with oxygen and the effect of absorbing and cooling temperature.
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; Colloid forms back layering easily, lack of homogeneity; The gel cost is higher, is not suitable for large tracts of land filling etc.
Summary of the invention
In order to solve the deficiency of above-mentioned colloidal materials, the present invention designs a kind of novel colliery extinguish material, safety non-toxic, cheap, and good stability, suspension is good, is evenly distributed, and anti-fire extinguishing effect is remarkable.
The present invention is achieved through the following technical solutions:
A kind of colliery extinguish material is mixed and is stirred obtaining mutually by the anti salt super absorbent resin of the attapulgite of mass percent 5-15%, mass percent 1-5% and water.
A kind of colliery preparation method of extinguish material, concrete steps comprise:
A) acrylic acid with 3 mass parts is placed in the ice bath, after neutralizing with NaOH PH=6, the acrylamide compositing monomer that adds 4 mass parts again, and add the potassium peroxydisulfate that accounts for monomer gross mass 0.25%, the N that accounts for monomer gross mass 0.25%, N-methylene-bisacrylamide successively; Rising water-bath temperature, is filtered and is taken out product and put into vacuum drying oven after the cooling of question response product at 70 ℃ of reaction 7h, is dried to constant weight and obtains anti salt super absorbent resin under 50 ℃.
B) take by weighing anti salt super absorbent resin and running water and mix, it is stand-by fully to stir the 10min left and right sides;
C) take by weighing attapulgite and running water and mix, fully stir 10-50min, treat to carry out next step reaction after the aggregate slurries evenly;
D) two kinds of abundant mixing and stirring of slurries that step b) and step c) are obtained namely get required colliery extinguish material.
A kind of colliery of the present invention extinguish material has following obvious superiority than traditional preventing and extinguishing fire technology:
1. invent described a kind of colliery and adopt concavo-convex rod good as the aggregate suspendability of colloid with extinguish material, specific area is big, and the colloid uniformity that obtains is outstanding, and long shelf-life, table 1 are the suspendability of the various aggregates of same concentrations, equal volume.
Table 1
2. invent described a kind of colliery and have colourless, tasteless, nontoxic, non-corrosiveness with extinguish material, few at fire extinguishing procedure steam generation, the threat of steam blast can not take place;
3. invent described a kind of colliery and have certain intensity with extinguish material, under the normal temperature dehydration very slow, but long preservation in the coal seam, the term of validity is long;
4. a kind of colliery of the present invention is very big with extinguish material and adhesion work between the coal body surface, and angle of wetting decreases, can be very fast the coal body moistened surface with sprawl;
5. invent described a kind of colliery and have bigger cohesive force with extinguish material, form the thicker liquid film of one deck on the coal body surface easily, more be conducive to the fire extinguishing invention.
6. described a kind of colliery in use can be according to factors such as on-site actual situations, position, spraying operation surface temperatures with extinguish material, the colloid of preparation varying strength has simple to operately, draws materials conveniently, economical and practical, be particularly suitable for that the anti-fire extinguishing of essence is carried out in the colliery and administer use.
The specific embodiment
Specify the present invention with the following Examples, but the present invention is not limited to following examples.
Embodiment 1
1) 3 parts acrylic acid is placed in the ice bath, after neutralizing with NaOH PH=6, the acrylamide compositing monomer that adds 4 parts again, and add the potassium peroxydisulfate that accounts for monomer gross mass 0.25%, the N that accounts for monomer gross mass 0.25%, N-methylene-bisacrylamide successively; Rising water-bath temperature, is filtered and is taken out product and put into vacuum drying oven after the cooling of question response product at 70 ℃ of reaction 7h, is dried to constant weight and obtains anti salt super absorbent resin under 50 ℃;
2) take by weighing 4g anti salt super absorbent resin and 40ml running water and mix, it is stand-by fully to stir the 10min left and right sides;
3) take by weighing 10g attapulgite and 46ml running water and mix, fully stir 10-50min, treat to carry out next step reaction after the aggregate slurries evenly;
4) with step 2) and two kinds of abundant mixing and stirring of slurries obtaining of step 3) be gained.
The product that obtains is evenly distributed, and lamination is added other aggregates and is significantly improved, and unharmful substance is emitted after testing, is applied to certain ore deposit, and the fire extinguishing effect is fine.
Embodiment 2
1) 3 parts acrylic acid is placed in the ice bath, after neutralizing with NaOH PH=6, the acrylamide compositing monomer that adds 4 parts again, and add the potassium peroxydisulfate that accounts for monomer gross mass 0.25%, the N that accounts for monomer gross mass 0.25%, N-methylene-bisacrylamide successively; Rising water-bath temperature, is filtered and is taken out product and put into vacuum drying oven after the cooling of question response product at 70 ℃ of reaction 7h, is dried to constant weight and obtains anti salt super absorbent resin under 50 ℃;
2) take by weighing 2g anti salt super absorbent resin and 30ml running water and mix, it is stand-by fully to stir the 10min left and right sides;
3) take by weighing 15g attapulgite and 53ml running water and mix, fully stir 10-50min, treat to carry out next step reaction after the aggregate slurries evenly;
4) with step 2) and two kinds of abundant mixing and stirring of slurries obtaining of step 3) namely get required anti-fire extinguishing colloid.
The product that obtains is evenly distributed, and lamination is added other aggregates and is significantly improved, and unharmful substance is emitted after testing, is applied to certain ore deposit, and the fire extinguishing effect is fine.
Claims (2)
1. a colliery extinguish material is characterized in that, is mixed and stirred obtaining mutually by the anti salt super absorbent resin of the attapulgite of mass percent 5-15%, mass percent 1-5% and water.
2. the described a kind of colliery of preparation claim 1 extinguish material method is characterized in that, may further comprise the steps:
A) acrylic acid with 3 mass parts is placed in the ice bath, after neutralizing with NaOH PH=6, the acrylamide compositing monomer that adds 4 mass parts again, and add the potassium peroxydisulfate that accounts for monomer gross mass 0.25%, the N that accounts for monomer gross mass 0.25%, N-methylene-bisacrylamide successively; Rising water-bath temperature, is filtered and is taken out product and put into vacuum drying oven after the cooling of question response product at 70 ℃ of reaction 7h, is dried to constant weight and obtains anti salt super absorbent resin under 50 ℃;
B) take by weighing anti salt super absorbent resin and running water and mix, it is stand-by fully to stir 10min;
C) take by weighing attapulgite and running water and mix, fully stir 10-50min, treat to carry out next step reaction after the aggregate slurries evenly;
D) two kinds of abundant mixing and stirring of slurries that step b) and step c) are obtained namely get required colliery extinguish material.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310090486.8A CN103203089B (en) | 2013-03-20 | 2013-03-20 | A kind of colliery extinguish material and preparation method thereof |
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| CN201310090486.8A CN103203089B (en) | 2013-03-20 | 2013-03-20 | A kind of colliery extinguish material and preparation method thereof |
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| CN103203089A true CN103203089A (en) | 2013-07-17 |
| CN103203089B CN103203089B (en) | 2016-04-06 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106902487A (en) * | 2017-01-20 | 2017-06-30 | 山东科技大学 | A kind of colliery preparation method of fire extinguishing colloidal materials |
| CN107213577A (en) * | 2017-06-07 | 2017-09-29 | 常州慧杰电气技术有限公司 | A kind of mining fireproofing extinguishing materials |
| WO2018227898A1 (en) * | 2017-06-16 | 2018-12-20 | 中国矿业大学 | Physical-chemical complex retardant for controlling spontaneous combustion of low-rank coal, preparation method therefor and use thereof |
| CN109126008A (en) * | 2018-06-28 | 2019-01-04 | 南京理工大学 | Macromolecule water uptake resin and preparation method thereof suitable for extinguishing chemical |
| CN111803854A (en) * | 2020-07-21 | 2020-10-23 | 中国矿业大学 | Nano-polymer aerogel fire extinguishing material for preventing and treating high-temperature coal fire and preparation method thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106902487A (en) * | 2017-01-20 | 2017-06-30 | 山东科技大学 | A kind of colliery preparation method of fire extinguishing colloidal materials |
| CN107213577A (en) * | 2017-06-07 | 2017-09-29 | 常州慧杰电气技术有限公司 | A kind of mining fireproofing extinguishing materials |
| WO2018227898A1 (en) * | 2017-06-16 | 2018-12-20 | 中国矿业大学 | Physical-chemical complex retardant for controlling spontaneous combustion of low-rank coal, preparation method therefor and use thereof |
| AU2017404563B2 (en) * | 2017-06-16 | 2019-06-20 | China University Of Mining And Technology | Physical-chemical composite inhibitor for controlling spontaneous combustion of low-rank coal and method of preparing and using same |
| RU2693125C1 (en) * | 2017-06-16 | 2019-07-01 | Китайский Университет Горного Дела И Технологии | Physical-chemical complex inhibitor for control of spontaneous ignition of low-grade coal and method of its preparation and use |
| US10648336B2 (en) | 2017-06-16 | 2020-05-12 | China University Of Mining And Technology | Physical-chemical composite inhibitor for controlling spontaneous combustion of low-rank coal and method of preparing and using same |
| CN109126008A (en) * | 2018-06-28 | 2019-01-04 | 南京理工大学 | Macromolecule water uptake resin and preparation method thereof suitable for extinguishing chemical |
| CN111803854A (en) * | 2020-07-21 | 2020-10-23 | 中国矿业大学 | Nano-polymer aerogel fire extinguishing material for preventing and treating high-temperature coal fire and preparation method thereof |
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