CN104083844A - Bentonite reticular gel foam mud fire prevention and extinguishing agent - Google Patents
Bentonite reticular gel foam mud fire prevention and extinguishing agent Download PDFInfo
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Abstract
The invention discloses a bentonite reticular gel foam mud fire prevention and extinguishing agent, and the key point of the technical scheme is that the fire prevention and extinguishing agent is composed of a bentonite composite type flame-retardant foaming agent, an attapulgite clay powder with an air purifying function, inorganic fiber spraying cotton, a sodium-modified bentonite powder, a coal gangue powder, an expanded perlite powder, sodium alginate and water. The ingredients of the bentonite reticular gel foam mud fire prevention and extinguishing agent are inputted into a plow harrow type material mixing machine and are subjected to high speed mixing into the bentonite reticular gel foam mud fire prevention and extinguishing agent. Reticular gel foam mud is jetted to a burning coal layer by an inorganic fiber spraying machine, so as to be beneficial for generation of an integral reticular gel foam mud film in the fire prevention and extinguishing process, the integral reticular gel foam mud film covers and adheres to the surface of the ore layer all the time, contact of the burning coal layer with air is rapidly isolated, coal mines are prevented from continuing to burn, the coal layer is avoided from reburning, and the purposes of flame retardancy and fire prevention and extinguishing are reached; and the bentonite reticular gel foam mud fire prevention and extinguishing agent is applicable to coal mines, mine operating areas and forest fire prevention and extinguishing.
Description
Technical field
The present invention relates to fire-prevention extinguishing agent, be specifically related to a kind of bentonite network gel foam mud fire-prevention extinguishing agent.
Background technology
The advantages such as that mining exploitation has is highly efficient and productive, low consumption, generally apply in a lot of coal productions of China base.But because the mining rate of this coal-mining method is large, goaf leaves over that residual coal is many, and height is large, leak out serious, often there will be the series of problems, particularly fire such as insoluble fire, gas, dust.
Fire foam is divided into chemical foam, air foam, fluoroprotein foam, AFFF and water-resistant foam etc.
China Patent Publication No. CN 102614615A, open day: on 08 01st, 2012, name is called " a kind of for the complex fire foam under coal mine ", " a kind of for the complex fire foam under coal mine; to it is characterized in that: be made up of following raw materials according: major ingredient is that concentration is 40%～60% carbonic hydroammonium or sodium bicarbonate aqueous solution and the concentrated sulfuric acid; to press solute mass ratio 2:1～3:1 and mix; auxiliary material is stabilizing agent and blowing agent, and described supplementary product consumption is major ingredient gross weight 0.1%～2% " disclosed.
The weak point of above-mentioned patent is: although this extinguishing chemical coefficient of foaming can reach 20～200 times, foam stabilization time >=2.5h, but can only make at short notice " noble gas carbon dioxide foaming spreads and be full of its space in flame range; oxygen concentration in flame range is declined rapidly; flame range is suffocated because of anoxic ", can not really accomplish contacting of isolated burning coal layer and air, prevention colliery burns away, avoid coal seam resume combustion, reach the object of fire-retardant and anti-fire extinguishing.Taking carbonic hydroammonium as the main raw material of extinguishing chemical, in fire extinguishing procedure, can discharge a large amount of ammonias, pollute the air of down-hole, be unfavorable for operating personnel's health.
China's bentonite ore stock number has exceeded 8,000,000,000 tons, most of bentonite ore is taking calcium-base bentonite as main, the reserves of sodium bentonite are less, but sodium bentonite is better than the colloidal property of calcium-base bentonite, therefore, in order to improve calcium-base bentonite colloidal property, need to carry out sodium modification processing to calcium-base bentonite.Routine is carried out the method for calcium-base bentonite sodium modification processing, is sodium carbonate is directly added in raw ore of calcium base bentonite sodium post-drying and abrasive dust.
In bentonite mining area, be that usage mining machine carries out mechanical mining bentonite raw ore mostly, excavate out be a kind of compact massive bentonite raw ore, bentonite origin ore body is long-pending larger, can not be directly used in sodium processing.
China Patent Publication No. CN 103553063 A, open day: on 02 05th, 2014, name is called " bentonite sodium modification new technology ", " new technology of a kind of bentonite sodium modification, it comprises the steps: that mineral resources screening-rotary cultivator cutting and crushing-add modifier mixes sodium-turn over mix-ageing of shovel-dry-grinding-detection metering packing-finished product " disclosed; " cancel double helix stirring and pair roller extruding two large operations, can simplify technique "; " utilize moist bentonite self moisture, sodium carbonate is dissolved, carry out sodium with bentonitic mineral composition montmorillonite generation displacement reaction "; " adopt the mode of airing or low temperature drying dry, make water content at 0.5-2% " ...
The weak point of above-mentioned patent is: bentonite sodium adopts merely " rotary cultivator cutting and crushing ", " turning over mix-ageing of shovel " and " utilizing moist bentonite self moisture; sodium carbonate is dissolved; carry out sodium with bentonitic mineral composition montmorillonite generation displacement reaction ", sodium carbonate can not be well and montmorillonite carry out complete sodium, the effect of sodium is bad; After bentonite sodium, " adopt the mode of airing or low temperature drying dry; to make water content at 0.5-2% ", in the time that after bentonite sodium, water content is less than 2%, directly have influence on the quality of sodium bentonite, bentonitic colloid viscosity will significantly decline, and be unfavorable for improving the property indices of sodium bentonite.
Gangue is thrown aside, takies tract, and sulfide in gangue is overflowed or leached can atmosphere pollution, farmland and water body, and hillock also can spontaneous combustion breaking out of fire, or in avalanche in rainy season, silts river up and cause disaster.
Summary of the invention
The object of the invention is to overcome weak point in prior art, a kind of bentonite network gel foam mud fire-prevention extinguishing agent is provided.
Bentonite in powder, colliery powder, swelling perlite powder, sodium alginate and water that bentonite network gel foam mud fire-prevention extinguishing agent is sprayed after cotton, sodium by compound flame-retardant expanded dose of bentonite, the concave convex rod potter's clay powder with air purification function, inorfil form.
The production method of bentonite network gel foam mud fire-prevention extinguishing agent: by the batching input plough type batch mixer of bentonite network gel foam mud fire-prevention extinguishing agent, high-speed stirred is bentonite network gel foam mud fire-prevention extinguishing agent.
Compound flame-retardant expanded dose of bentonite is made up of atlapulgite, the concave convex rod potter's clay powder with air purification function, hydrogen peroxide, magnesium hydroxide, sodium sulfate of polyethenoxy ether of fatty alcohol, micronized polyethylene alcohol powder, dimethicone and water; First compound bentonite flame-retardant expanded dose of paste batching is stirred as paste, more compound bentonite flame-retardant expanded dose of batching stirred to the finished product for compound flame-retardant expanded dose of bentonite.Compound flame-retardant expanded dose of bentonite adds water after high-speed stirred, forms cavernous foam mud, can completely cut off rapidly contacting of combustible material and air, reaches object fire-retardant and fire extinguishing.
Atlapulgite is the bentonite product of acidified processing, and outward appearance is off-white powder, and odorless is tasteless, nontoxic, and absorption property is very strong, can adsorb coloring matter, organic substance.Because atlapulgite chemism is high, there is stronger ion exchangeable, Selective adsorption, hydrophily, surface-active and catalytic.
Atlapulgite is the conventional products in this area, and national standard number is: GB 25571-2011.
Bentonite has strong hygroscopicity and dilatancy, adsorbable 8～15 times to the water yield of own vol, volumetric expansion can reach several times to 30 times; In aqueous medium, can be dispersed into as a form of gel and suspension, this medium solution has certain viscosity, variability and lubricity.The Performance Ratio calcium-base bentonite of sodium bentonite good, but the distribution of calcium-base bentonite, far extensively in sodium bentonite, is therefore found sodium bentonite except strengthening in the world, need to carry out sodium modification processing to calcium-base bentonite.
The concave convex rod potter's clay powder with air purification function is made up of the sticky Concave-convex clay rod of height, attapulite constant humidity amendment, natural-minerals adsorptive filter medium, cacumen biotae, aluminium silicate fiber peacekeeping polyacrylamide; There is good caking property, plasticity, thixotropy, fire resistance and heat endurance; The effectively harmful substance such as formaldehyde, ammonia and benzene in absorbed air, protection of the environment and promote the healthy of people.
High sticky Concave-convex clay rod is the Concave-convex clay rod that adopts the processing technology that improves viscosity of attapulgite clay to produce, Concave-convex clay rod is after batching stirs, in input grinding machine, carry out abrasive dust for high sticky Concave-convex clay rod powder, grain fineness≤0.074 millimeter.
High sticky Concave-convex clay rod soil property exquisiteness, has oily soapy, and light weight, property are crisp, fracture is conchoidal or irregular shape, and water imbibition is strong, tool viscosity and plasticity when wet, viscosity >=the 2200mPas of high sticky Concave-convex clay rod powder, adhesive force is good, is conducive to the bonding between raw material.
Hydrogen peroxide is commonly called as hydrogen peroxide, outward appearance is colourless transparent liquid, be a kind of strong oxidizer, the present invention selects mass fraction >=35% of industrial hydrogen peroxide, after mixing, can generate a large amount of bubbles with the batching such as concave convex rod potter's clay powder and magnesium hydroxide with air purification function.
Magnesium hydroxide is a kind of white amorphous powder, during by decomposes, discharge in conjunction with water, absorb a large amount of latent heat, reduce synthetic material that it the fills surface temperature in flame, there is the polymer unwinds of inhibition and produced fuel gas is carried out to cooling effect, decomposing the magnesia generating is again good refractory material, also can help to improve the fire resistance of synthetic material, and the steam that it is emitted simultaneously also can be used as a kind of smoke suppressant; That magnesium hydroxide has is fire-retardant, press down cigarette, fill the outstanding fire retardant of triple functions.
Sodium sulfate of polyethenoxy ether of fatty alcohol is soluble in water, has good decontamination, emulsification, foam performance and anti-performance of hard water, is a kind of anion surfactant.
Micronized polyethylene alcohol powder is a kind of white, powdery, stable, nontoxic high molecular weight water soluble polymer, can be dissolved in fast in normal-temperature water, forms stable colloid, and water is the solvent that polyvinyl alcohol is good.Polyvinyl alcohol has the good film of making, the film forming has excellent adhesion, solvent resistance, rub resistance, tensile strength and oxygen barrier performance, can improve the viscosity of foam, there is certain steady bubble effect, and can improve the product bulk strength that adopts the compound flame-retardant expanded dose of production of bentonite.
Dimethicone surface tension is little, water insoluble, and chemical stability is good, nontoxic, is a kind of defoamer and remover, the invalid bubble generating for eliminating foaming process, the make rate of raising abscess.
Inorfil spraying cotton is that to utilize industrial waste slag (blast-furnace cinder or Copper Slag, aluminium ore slag etc.) be primary raw material, the staple shape inorfil of making through techniques such as fusing, employing supercentrifugal process or blowing processes.It has light weight, thermal conductivity factor little, do not burn, the feature such as mothproof, inexpensive, corrosion-resistant, chemical stability is good and sound absorbing capabilities is good.
Gangue is the solid waste discharging in coal mining process and coal washing process, the present invention uses gangue can increase the content of bentonite network gel foam mud fire-prevention extinguishing agent aluminium oxide, improve the surface strength of network gel foam mud film, the present invention selects the colliery powder after pulverizing, grain fineness≤0.074 millimeter of colliery powder.
Perlite becomes a kind of lightweight, multifunctional novel shaped material through calcining expansion.Have that apparent density is light, thermal conductivity factor is low, chemical stability is good, serviceability temperature scope is wide, wettability power is little, and the feature such as nontoxic, tasteless, fire prevention, sound-absorbing.The present invention selects the swelling perlite powder after pulverizing, grain fineness≤0.074 millimeter of swelling perlite powder.
Magnesia is white or pale yellow powder, and odorless, tasteless, nontoxic, has extremely fireproof, insulation and fire resistance, and magnesia has the general character of basic anhydride, belongs to Binder Materials, can improve bentonitic colloid index.
Sodium alginate is white or light brown powder, and ratio is dissolved in water arbitrarily, forms the thickness aqueous solution of good fluidity, is conducive to the ability that bentonite network gel foam mud fire-prevention extinguishing agent forms fast gelinite and strengthens its film forming.
The present invention is achieved by following technical proposals:
1, the batching of bentonite network gel foam mud fire-prevention extinguishing agent is made up of following component by weight percentage: compound flame-retardant expanded dose 5～55% of bentonite, inorfil spray cotton mixture 5～35% and water 20～90%;
The production method of bentonite network gel foam mud fire-prevention extinguishing agent: by the batching input plough type batch mixer of bentonite network gel foam mud fire-prevention extinguishing agent, high-speed stirred is bentonite network gel foam mud fire-prevention extinguishing agent, the speed of plough type batch mixer is controlled at 2400～2800 revs/min, and mixing time is controlled at 2～20 minutes.
2, the compound flame-retardant expanded dose of batching of bentonite is made up of following component by weight percentage: the compound flame-retardant expanded dose of paste 5～75% of bentonite, hydrogen peroxide 1～35%, dimethicone 0～5% and water 1～85%.
The production method that bentonite is compound flame-retardant expanded dose: will stir in compound bentonite flame-retardant expanded dose of batching input homogenizer, the speed of mixer is controlled at 1400～1800 revs/min, mixing time is controlled at 1～30 minute, after stirring, be compound flame-retardant expanded dose of bentonite, in compound flame-retardant expanded dose of bentonite, contain a large amount of stable intensive bubbles.
The compound flame-retardant expanded dose of paste batching of bentonite is made up of following component by weight percentage: atlapulgite 5～55%, the concave convex rod potter's clay powder 5～45% with air purification function, magnesium hydroxide 1～35%, sodium sulfate of polyethenoxy ether of fatty alcohol 0.01～15%, micronized polyethylene alcohol powder 0.01～5% and water 5～55%.
The production method of the compound flame-retardant expanded dose of paste of bentonite: will stir in compound bentonite flame-retardant expanded dose of paste batching input low-speed mixer, the speed of mixer is controlled at 600～800 revs/min, mixing time is controlled at 1～20 minute, after stirring for the compound flame-retardant expanded dose of paste of bentonite, generating portion bubble in the compound flame-retardant expanded dose of paste of bentonite.
Compound flame-retardant expanded dose of bentonite is to adopt by the inventor in " compound flame-retardant expanded dose of the bentonite " of application on 06 12nd, 2013, and China Patent Publication No. is: CN 103274745 A, open day: on September 04th, 2013.
3, the batching that inorfil sprays cotton mixture is made up of following component by weight percentage: inorfil spraying is cotton 5～45%, bentonite in powder 5～45%, colliery powder 5～35%, swelling perlite powder 2～25% and sodium alginate 0.01～5% after sodium;
Inorfil sprays the production method of cotton mixture: inorfil is sprayed in the batching input plough type batch mixer of cotton mixture, stirring at low speed is that inorfil sprays cotton mixture, the speed of plough type batch mixer is controlled at 800～1000 revs/min, and mixing time is controlled at 2～20 minutes.
4, the production method of the bentonite in powder after sodium:
Raw ore of calcium base bentonite need to be through two time weathering more than winter, calcium-base bentonite the weathering that is fine particle from the raw ore disintegration of large block compact, pick obvious visible barren rock piece, string and other earth impurity, calcium-base bentonite grain fineness≤5 millimeter after weathering;
(2) the batching of calcium-base bentonite mixture is made up of following component by weight percentage: calcium-base bentonite 92～98%, magnesia 0.5～5% and sodium carbonate 0.5～5% after weathering; By stirring in the batching input mixer of calcium-base bentonite mixture, it after stirring, is calcium-base bentonite mixture;
(3) bentonite sodium processing method: 1. the batching of bentonite tablet is made up of following component by weight percentage: calcium-base bentonite mixture 65～85% and water 15～35%; 2. calcium-base bentonite mixture is inputted in fermentation vat, then water is slowly added in calcium-base bentonite mixture and soaks sodium, sodium soak time is 24～72 hours; 3. take out the calcium-base bentonite mixture after soaking, input is stirred in biaxial rneader, inputs and in extruder, be extruded into bentonite tablet, bentonite thickness of flap≤3 millimeter after stirring; 4. bentonite tablet is transported in swinging drying oven and is dried, drying time control is 1～3 hour, and bake out temperature is controlled at 80～100 DEG C, and the bentonite tablet water content after oven dry is 10～15%, and PCm is weight percentage;
(4) the batching of the bentonite in powder after sodium is made up of following component by weight percentage: bentonite tablet 90～98%, quick dissolved sodium silicate 0.1～5%, polyvinyl alcohol 0.1～5% and hydroxypropyl methylcellulose 0.01～3% after oven dry; By abrasive dust in the bentonite in powder batching input grinding machine after sodium, grain fineness≤0.074 millimeter, the powder after abrasive dust is the bentonite in powder after sodium.
Bentonite in powder after sodium is to adopt " bentonite after sodium " invented on 06 01st, 2014 by the inventor, and Chinese Patent Application No. is: 201410237840.X, the applying date: on 06 01st, 2014.
5, the batching that has a concave convex rod potter's clay powder of air purification function is made up of following component by weight percentage: high sticky Concave-convex clay rod 35～60%, attapulite constant humidity amendment 10～35%, natural-minerals adsorptive filter medium 5～20%, cacumen biotae 2～15%, alumina silicate fibre 1～5% and polyacrylamide 0.1～3%; There is the production method of the concave convex rod potter's clay powder of air purification function: (1) rear the input in pulverizer of batching mixing of the concave convex rod potter's clay powder with air purification function pulverized, the compound particles fineness after pulverizing is less than 0.5 millimeter; (2) pulverulent mixture is added and soak water in old pond and soak the old semi-finished product that are treated to, soak the old time to be controlled at 7～30 days; (3) semi-finished product are inputted in vacuum-extruder and be squeezed into cylindrical strip thing, the diameter control of cylindrical strip thing is at 2～10 millimeters; (4) cylindrical strip thing is input to cement threshing ground and carries out airing, the cylindrical strip thing water content after airing is less than 15%; (5) be powder by carrying out abrasive dust in the cylindrical strip thing input grinding machine after airing, the grain fineness of powder is less than 0.074 millimeter, and PCm is weight percentage.
The concave convex rod potter's clay powder with air purification function is to adopt by the inventor in application on February 25th, 2011 " having the concave convex rod potter's clay powder of air purification function ", Chinese patent Granted publication number is: CN 102173743 B, Granted publication day: on July 25th, 2012.
High sticky Concave-convex clay rod is the Concave-convex clay rod that adopts the processing technology that improves viscosity of attapulgite clay to produce, it is characterized in that, and from the Concave-convex clay rod of mining area exploitation, need to be through the weathering of 30～120 days; Modification processing method is: calculate by weight percentage, get the Concave-convex clay rod 94～98% after weathering, evenly add 2～6% sodium carbonate, jointly input in fermentation vat, add clear water to soak ageing, soak time is 72～120 hours; Get the Concave-convex clay rod after immersion, in input mixer, stir, and by the Concave-convex clay rod after stirring, be extruded into thin slice through extruder, its THICKNESS CONTROL is at 0.5～2 millimeter, by Concave-convex clay rod thin slice, carry out airing, the Concave-convex clay rod thin slice after airing, its water content≤15%; Batching is calculated by weight percentage: Concave-convex clay rod 94～98%, high hydroscopic resin 0.5～5% and cellulose 0.5～3% after airing, above-mentioned batching is stirred, after stirring, input and in grinding machine, carry out abrasive dust, grain fineness≤0.074 millimeter, PCm is weight percentage.
Above-mentioned production technology is to adopt " the improving the processing technology of viscosity of attapulgite clay " of being applied on June 20th, 2005 by the inventor, and Chinese patent Granted publication number is: CN 1317067C, Granted publication day: on May 23rd, 2007.
The detection method of high sticky Concave-convex clay rod: get 28.0g Concave-convex clay rod powder sample, add in the suspension cup of homogenizer, add again 372g water, suspension cup is placed on homogenizer, under the rotating speed of 11000 revs/min, stir 20 minutes, to pour in the beaker of 250mL through high-speed stirred sample suspension, use NDJ-1 type rotation viscometer to carry out the viscosity of test suspension liquid, tested viscosity value >=2200 mPas is high sticky Concave-convex clay rod.
The present invention selects mass fraction >=35% of industrial hydrogen peroxide, takes production scene to add water and adjusts the batching percentage of industrial hydrogen peroxide, is conducive to reduce freight and production cost, improves the foaming quality of product.
First inorfil is sprayed in the batching input plough type batch mixer of cotton mixture, stirring at low speed is that inorfil sprays cotton mixture, is conducive to the uniform shredding of bentonite in powder, colliery powder, swelling perlite powder and sodium alginate, fragmentation after cotton inorfil spraying and sodium, is uniformly mixed and is integrated.
A large amount of production practices prove, bentonite in powder after sodium adopts the technique of batching, stirring, immersion, stirring, extruding, airing, batching and abrasive dust, promote that sodium carbonate liquor can infiltrate the bentonite intracell after weathering very soon, the effect of sodium is relatively good, and colloid viscosity, colloid index, water-swelling property, adhesive force, thixotropy, suspension, pulping and the stability of the bentonite in powder after sodium are all greatly improved.
Although compound flame-retardant expanded dose of bentonite adds water after high-speed stirred at flame-retarding fire-extinguishing scene, can discharge fast a large amount of gas, form cavernous foam mud, can be for flame-retarding fire-extinguishing, but use merely compound flame-retardant expanded dose of bentonite, can only be applicable to general fire-retardant and anti-fire extinguishing on ground, and there is its particularity for the material of anti-fire extinguishing in colliery, require fire-prevention extinguishing agent to there is good mobility, permeability, thixotropy and adhesion property, not only can in colliery, put out a fire, also to there is rapidly contacting of isolated burning coal layer and air, stop colliery to burn away, avoid the function of coal seam resume combustion.
The present invention has formed a kind of New Type of Bentonite network gel foam mud fire-prevention extinguishing agent after spraying cotton design of mixture by bentonite compound flame-retardant expanded dose and inorfil, can form fast a kind of network gel foam mud of sticky porous.
Network gel foam mud is ejected into the coal seam of burning by inorfil flush coater, be conducive to generate a kind of network gel foam mud film of globality in anti-fire extinguishing procedure, this network gel foam mud film is a kind of flexible film, can change along with the displacement of ore bed the shape of film, filling is between float coal and the rock crevice of inbreak, the obstruction passage that leaks out, minimizing is leaked out.
Network gel foam mud film covers the surface that sticks to ore bed all the time, rapidly isolated burning coal layer contacts with air, stop colliery to burn away, avoid coal seam resume combustion, reach the object of fire-retardant and anti-fire extinguishing, and can reduce the pollution of pernicious gas, the surface that network gel foam mud film covers ore bed can not produce a large amount of water vapours, the danger that does not exist water-gas blast and water vapour to hurt sb.'s feelings.
In the process of anti-fire extinguishing, network gel foam mud film at high temperature slow dehydration produces steam, absorbs large calorimetric, thereby can effectively reduce the temperature of inside, coal seam, and network gel foam mud film can keep certain wettability for a long time, prevents coal seam resume combustion; When after the slow dehydration of network gel foam mud film, spray water was sprayed on network gel foam mud film surface in the past, in network gel foam mud film, high hydroscopic resin and cellulose water suction continue to expand, the anti-fire extinguishing effect of recovering and strengthen network gel foam mud film, the effect of anti-fire extinguishing will exceed more than 24 hours.
The raw materials such as diatomite after the Concave-convex clay rod after the rice hulls of the concave convex rod potter's clay powder with air purification function after by the sticky Concave-convex clay rod of height, quick dissolved sodium silicate, zeolite powder, acidifying, zeolite, the acidifying after acidifying, bentonite, the acidifying after acidifying, volcanic rock, alumine, cacumen biotae, aluminium silicate fiber peacekeeping polyacrylamide form; There is good caking property, plasticity, thixotropy, fire resistance and heat endurance, effectively harmful substance in absorbed air, protection of the environment and enhancement people's is healthy.
The gas that bentonite network gel foam mud fire-prevention extinguishing agent produces in foaming process is lighter than gel foam mud; have a certain amount of gas ionization on gel foam mud film upper strata; can not have a negative impact to the coal seam resume combustion below gel foam mud film, and the oxygen containing in gas can contribute to protect, miner or fire fighter's is healthy.
Bentonite network gel foam mud fire-prevention extinguishing agent is a kind of fire-retardant fireproofing extinguishing materials of high-quality, carrying out in the process of anti-fire extinguishing, do not produce carburization zone and flue gas, inorfil spraying cotton fiber in network gel foam mud film and other batching interweave and are bonded as one, formation has the dimensional network structure of some strength and toughness, remain the integrality of network gel foam mud film, improve the efficiency of anti-fire extinguishing.
Utilize bentonite network gel foam mud fire-prevention extinguishing agent to carry out anti-fire extinguishing, technique is simple, equipment needed thereby is few, nontoxic, free from environmental pollution, there is good mobility, permeability, thixotropy and adhesion property, be conducive at freely burning fire and leak out the on-the-spot application of mine serious, not only effectively fire-retardant and anti-fire extinguishing, also have adsorption cleaning air, reduce the function of mine environment pollution, meet the requirement of coal mine underground coal bed control spontaneous combustion and fire, put out a fire fast and effectively in time and prevent coal seam resume combustion, guaranteeing mine safety.
Bentonite network gel foam mud fire-prevention extinguishing agent is applicable to the anti-fire extinguishing of colliery, other mine operation district and forest.
Detailed description of the invention
Below in conjunction with embodiment, the invention will be further described:
1, the batching of bentonite network gel foam mud fire-prevention extinguishing agent is made up of following component by weight percentage: compound flame-retardant expanded dose 26% of bentonite, inorfil spray cotton mixture 22% and water 52%;
The production method of bentonite network gel foam mud fire-prevention extinguishing agent: by the batching input plough type batch mixer of bentonite network gel foam mud fire-prevention extinguishing agent, high-speed stirred is bentonite network gel foam mud fire-prevention extinguishing agent, the speed of plough type batch mixer is controlled at 2400～2800 revs/min, and mixing time is controlled at 12 minutes.
2, the compound flame-retardant expanded dose of batching of bentonite is made up of following component by weight percentage: the compound flame-retardant expanded dose of paste 38% of bentonite, hydrogen peroxide 6%, dimethicone 0% and water 56%.
The production method that bentonite is compound flame-retardant expanded dose: will stir in compound bentonite flame-retardant expanded dose of batching input homogenizer, the speed of mixer is controlled at 1400～1800 revs/min, mixing time is controlled at 8 minutes, is compound flame-retardant expanded dose of bentonite after stirring.
The compound flame-retardant expanded dose of paste batching of bentonite is made up of following component by weight percentage: atlapulgite 35%, the concave convex rod potter's clay powder 15% with air purification function, magnesium hydroxide 5%, sodium sulfate of polyethenoxy ether of fatty alcohol 3%, micronized polyethylene alcohol powder 0.5% and water 41.5%.
The production method of the compound flame-retardant expanded dose of paste of bentonite: will stir in compound bentonite flame-retardant expanded dose of paste batching input low-speed mixer, the speed of mixer is controlled at 600～800 revs/min, mixing time is controlled at 10 minutes, is the compound flame-retardant expanded dose of paste of bentonite after stirring.
3, the batching that inorfil sprays cotton mixture is made up of following component by weight percentage: inorfil spraying is cotton 36%, bentonite in powder 30%, colliery powder 26%, swelling perlite powder 6% and sodium alginate 2% after sodium;
Inorfil sprays the production method of cotton mixture: inorfil is sprayed in the batching input plough type batch mixer of cotton mixture, stirring at low speed is that inorfil sprays cotton mixture, the speed of plough type batch mixer is controlled at 800～1000 revs/min, and mixing time is controlled at 12 minutes.
4, the production method of the bentonite in powder after sodium: (1) raw ore of calcium base bentonite need to be through two time weathering more than winter, calcium-base bentonite the weathering that is fine particle from the raw ore disintegration of large block compact, pick obvious visible barren rock piece, string and other earth impurity, calcium-base bentonite grain fineness≤5 millimeter after weathering; (2) the batching of calcium-base bentonite mixture is made up of following component by weight percentage: calcium-base bentonite 95%, magnesia 3% and sodium carbonate 2% after weathering; By stirring in the batching input mixer of calcium-base bentonite mixture, it after stirring, is calcium-base bentonite mixture; (3) bentonite sodium processing method: 1. the batching of bentonite tablet is made up of following component by weight percentage: calcium-base bentonite mixture 72% and water 28%; 2. calcium-base bentonite mixture is inputted in fermentation vat, then water is slowly added in calcium-base bentonite mixture and soaks sodium, sodium soak time is 48 hours; 3. take out the calcium-base bentonite mixture after soaking, input is stirred in biaxial rneader, inputs and in extruder, be extruded into bentonite tablet, bentonite thickness of flap≤3 millimeter after stirring; 4. bentonite tablet is transported in swinging drying oven and is dried, drying time control is 2 hours, and bake out temperature is controlled at 80～100 DEG C, and the bentonite tablet water content after oven dry is 12～15%, and PCm is weight percentage; (4) the batching of the bentonite in powder after sodium is made up of following component by weight percentage: bentonite tablet 96%, quick dissolved sodium silicate 2%, polyvinyl alcohol 1.6% and hydroxypropyl methylcellulose 0.4% after oven dry; By abrasive dust in the bentonite in powder batching input grinding machine after sodium, grain fineness≤0.074 millimeter, the powder after abrasive dust is the bentonite in powder after sodium.
Claims (10)
1. a bentonite network gel foam mud fire-prevention extinguishing agent, it is characterized in that, the batching of bentonite network gel foam mud fire-prevention extinguishing agent is made up of following component by weight percentage: compound flame-retardant expanded dose 5～55% of bentonite, inorfil spray cotton mixture 5～35% and water 20～90%.
2. the production method of bentonite network gel foam mud fire-prevention extinguishing agent according to claim 1, it is characterized in that, by in the batching input plough type batch mixer of bentonite network gel foam mud fire-prevention extinguishing agent, high-speed stirred is bentonite network gel foam mud fire-prevention extinguishing agent, the speed of plough type batch mixer is controlled at 2400～2800 revs/min, and mixing time is controlled at 2～20 minutes.
3. the compound flame-retardant expanded dose of batching of bentonite according to claim 1, it is characterized in that, formed by following component by weight percentage: the compound flame-retardant expanded dose of paste 5～75% of bentonite, hydrogen peroxide 1～35%, dimethicone 0～5% and water 1～85%; The production method that bentonite is compound flame-retardant expanded dose: will stir in compound bentonite flame-retardant expanded dose of batching input homogenizer, the speed of mixer is controlled at 1400～1800 revs/min, mixing time is controlled at 1～30 minute, is compound flame-retardant expanded dose of bentonite after stirring.
4. the compound flame-retardant expanded dose of paste of bentonite prepared burden according to claim 3, it is characterized in that, formed by following component by weight percentage: atlapulgite 5～55%, the concave convex rod potter's clay powder 5～45% with air purification function, magnesium hydroxide 1～35%, sodium sulfate of polyethenoxy ether of fatty alcohol 0.01～15%, micronized polyethylene alcohol powder 0.01～5% and water 5～55%; The production method of the compound flame-retardant expanded dose of paste of bentonite: will stir in compound bentonite flame-retardant expanded dose of paste batching input low-speed mixer, the speed of mixer is controlled at 600～800 revs/min, mixing time is controlled at 1～20 minute, is the compound flame-retardant expanded dose of paste of bentonite after stirring.
5. inorfil sprays the batching of cotton mixture according to claim 1, it is characterized in that, formed by following component by weight percentage: bentonite in powder 5～45%, colliery powder 5～35%, swelling perlite powder 2～25% and sodium alginate 0.01～5% after inorfil spraying cotton 5～45%, sodium; Inorfil sprays the production method of cotton mixture: inorfil is sprayed in the batching input plough type batch mixer of cotton mixture, stirring at low speed is that inorfil sprays cotton mixture, the speed of plough type batch mixer is controlled at 800～1000 revs/min, and mixing time is controlled at 2～20 minutes.
6. the production method of the bentonite in powder after sodium according to claim 5, it is characterized in that, raw ore of calcium base bentonite need to be through two time weathering more than winter, calcium-base bentonite the weathering that is fine particle from the raw ore disintegration of large block compact, pick obvious visible barren rock piece, string and other earth impurity, calcium-base bentonite grain fineness≤5 millimeter after weathering; (2) the batching of calcium-base bentonite mixture is made up of following component by weight percentage: calcium-base bentonite 92～98%, magnesia 0.5～5% and sodium carbonate 0.5～5% after weathering; By stirring in the batching input mixer of calcium-base bentonite mixture, it after stirring, is calcium-base bentonite mixture; (3) bentonite sodium processing method: 1. the batching of bentonite tablet is made up of following component by weight percentage: calcium-base bentonite mixture 65～85% and water 15～35%; 2. calcium-base bentonite mixture is inputted in fermentation vat, then water is slowly added in calcium-base bentonite mixture and soaks sodium, sodium soak time is 24～72 hours; 3. take out the calcium-base bentonite mixture after soaking, input is stirred in biaxial rneader, inputs and in extruder, be extruded into bentonite tablet, bentonite thickness of flap≤3 millimeter after stirring; 4. bentonite tablet is transported in swinging drying oven and is dried, drying time control is 1～3 hour, and bake out temperature is controlled at 80～100 DEG C, and the bentonite tablet water content after oven dry is 10～15%, and PCm is weight percentage; (4) the batching of the bentonite in powder after sodium is made up of following component by weight percentage: bentonite tablet 90～98%, quick dissolved sodium silicate 0.1～5%, polyvinyl alcohol 0.1～5% and hydroxypropyl methylcellulose 0.01～3% after oven dry; By abrasive dust in the bentonite in powder batching input grinding machine after sodium, grain fineness≤0.074 millimeter, the powder after abrasive dust is the bentonite in powder after sodium.
7. there is according to claim 4 the concave convex rod potter's clay powder of air purification function, it is characterized in that, the batching with the concave convex rod potter's clay powder of air purification function is made up of following component by weight percentage, high sticky Concave-convex clay rod 35～60%, attapulite constant humidity amendment 10～35%, natural-minerals adsorptive filter medium 5～20%, cacumen biotae 2～15%, alumina silicate fibre 1～5% and polyacrylamide 0.1～3%; There is the production method of the concave convex rod potter's clay powder of air purification function: (1) rear the input in pulverizer of batching mixing of the concave convex rod potter's clay powder with air purification function pulverized, the compound particles fineness after pulverizing is less than 0.5 millimeter; (2) pulverulent mixture is added and soak water in old pond and soak the old semi-finished product that are treated to, soak the old time to be controlled at 7～30 days; (3) semi-finished product are inputted in vacuum-extruder and be squeezed into cylindrical strip thing, the diameter control of cylindrical strip thing is at 2～10 millimeters; (4) cylindrical strip thing is input to cement threshing ground and carries out airing, the cylindrical strip thing water content after airing is less than 15%; (5) be powder by carrying out abrasive dust in the cylindrical strip thing input grinding machine after airing, the grain fineness of powder is less than 0.074 millimeter.
8. high sticky Concave-convex clay rod is the Concave-convex clay rod that adopts the processing technology that improves viscosity of attapulgite clay to produce according to claim 7, it is characterized in that, and from the Concave-convex clay rod of mining area exploitation, need to be through the weathering of 30～120 days; Modification processing method is: calculate by weight percentage, get the Concave-convex clay rod 94～98% after weathering, evenly add 2～6% sodium carbonate, jointly input in fermentation vat, add clear water to soak ageing, soak time is 72～120 hours; Get the Concave-convex clay rod after immersion, in input mixer, stir, and by the Concave-convex clay rod after stirring, be extruded into thin slice through extruder, its THICKNESS CONTROL is at 0.5～2 millimeter, by Concave-convex clay rod thin slice, carry out airing, the Concave-convex clay rod thin slice after airing, its water content≤15%; Batching is calculated by weight percentage: Concave-convex clay rod 94～98%, high hydroscopic resin 0.5～5% and cellulose 0.5～3% after airing, above-mentioned batching is stirred, and after stirring, input and in grinding machine, carry out abrasive dust, grain fineness≤0.074 millimeter.
9. the detection method of high sticky Concave-convex clay rod according to claim 7, it is characterized in that, get 28.0g Concave-convex clay rod powder sample, add in the suspension cup of homogenizer, add again 372g water, suspension cup is placed on homogenizer, under the rotating speed of 11000 revs/min, stir 20 minutes, to pour in the beaker of 250mL through high-speed stirred sample suspension again, use NDJ-1 type rotation viscometer to carry out the viscosity of test suspension liquid, tested viscosity value >=2200 mPas is high sticky Concave-convex clay rod.
10. inorfil sprays the batching of cotton mixture according to claim 5, it is characterized in that grain fineness≤0.074 millimeter of colliery powder, grain fineness≤0.074 millimeter of swelling perlite powder.
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| CN115386305A (en) * | 2022-08-02 | 2022-11-25 | 句容康泰膨润土有限公司 | Environment-friendly modified bentonite inorganic gel and modification method |
| CN116159274A (en) * | 2023-03-01 | 2023-05-26 | 徐州兴顺消防科技有限公司 | Water-based foam extinguishing agent |
| CN116808500A (en) * | 2023-06-30 | 2023-09-29 | 成都理工大学 | Preparation method of multi-stage water slow-release bentonite extinguishing agent for lithium ion battery |
| CN116808500B (en) * | 2023-06-30 | 2024-05-31 | 成都理工大学 | Preparation method of multi-stage water slow-release bentonite extinguishing agent for lithium ion battery |
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