CN107970555A - A kind of preparation method of long-acting stable type inorganic gel fire extinguishing gel rubber material - Google Patents
A kind of preparation method of long-acting stable type inorganic gel fire extinguishing gel rubber material Download PDFInfo
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- CN107970555A CN107970555A CN201711114186.3A CN201711114186A CN107970555A CN 107970555 A CN107970555 A CN 107970555A CN 201711114186 A CN201711114186 A CN 201711114186A CN 107970555 A CN107970555 A CN 107970555A
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- A62D1/00—Fire-extinguishing compositions; Use of chemical substances in extinguishing fires
- A62D1/06—Fire-extinguishing compositions; Use of chemical substances in extinguishing fires containing gas-producing, chemically-reactive components
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- A—HUMAN NECESSITIES
- A62—LIFE-SAVING; FIRE-FIGHTING
- A62D—CHEMICAL MEANS FOR EXTINGUISHING FIRES OR FOR COMBATING OR PROTECTING AGAINST HARMFUL CHEMICAL AGENTS; CHEMICAL MATERIALS FOR USE IN BREATHING APPARATUS
- A62D1/00—Fire-extinguishing compositions; Use of chemical substances in extinguishing fires
- A62D1/0064—Gels; Film-forming compositions
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Abstract
The present invention relates to a kind of preparation method of long-acting stable type inorganic gel fire extinguishing gel rubber material, belong to fire-extinguishing gel field of material technology.The present invention is by using sodium humate as main binding material, since the active group on sodium humate molecular structure is under the action of crosslinking agent, crosslinking between recurring structure unit, structure after crosslinking is space grid structure, the resin formed at high temperature is filled therebetween again, at the same time under high temperature action, effectively improve cohesive viscosity, improve the cladding extinguishing property of material, and the present invention coats intumescent inorganic material by sodium humate, it is effectively expanded in high temperature environments and discharge the nano-calcium carbonate of internal cladding, since calcium carbonate material is decomposed at high temperature, the carbon dioxide of generation effectively reduces comburant efficiency of combustion, effectively put out a fire and prevent secondary resume combustion, the inorganic material being decomposed to form at the same time effectively coats comburant and improves Sealing period length, effectively improve the long-term stability energy of fire extinguishing gel rubber material.
Description
Technical field
The present invention relates to a kind of preparation method of long-acting stable type inorganic gel fire extinguishing gel rubber material, belong to fire-extinguishing gel
Field of material technology.
Background technology
Gel preventing and extinguishing fire technology is more early in China's coal-mine application, and gel rubber material develops into organic high score from inorganic gel materials
Sub- material.Silicic acid gel applies more mature one kind as inorganic gel materials, also obtains preferable effect, but specific
During use, the pernicious gas being detrimental to health can be produced；Gel rubber material of the part using electrolyte as coagulant is to water
The requirement of matter is stringent, is not suitable for underground water environment, such a gel stability is poor, easy to aging, gelation time is generally longer.Gelation
The hot spot that energy is good, environment amenable novel high polymer gel is current studies in China.Macromolecule glue material has excellent
Performance, gelation time is short, rheological property is moderate, can preferably fill the gap between broken coal, achieve the purpose that starvation,
Good application effect is obtained in underground coal mine and ground coal yard.But there are one for the high molecular material being currently mainly used
Fixed limitation：The performance imperfection of material in itself, a wide range of use cost is high, and the strength and stability of partial gel material needs
Further strengthen；Most of high molecular material does not have resistanceization in itself, its prevent coal spontaneous combustion rely primarily on the parcel of gel every
Oxygen, degenerates with the dehydration of gel, and wrapped coal body gradually exposes in atmosphere originally, the suppression coal spontaneous combustion of the gel rubber material
There is certain limitation in the sustainable time of performance.With the stability of fire extinguishing material itself foam of form of foam exploitation far not
Than solid phase materials such as gels；And the life cycle of foam has some limitations, its stability and seal-off effect need into one
Step is strengthened.
The characteristics of for coal bed fire, develop technique of gel extinguishing fires material.The fire extinguishing mechanism of colloid uniqueness so that colloid
Fire-fighting efficiency is high, speed is fast.Its extinguishing mechanism and feature are as follows：
（1）Being covered in the colloid on coal body surface reduces the probability that coal body is contacted with oxygen.The oxidation of coal body is from coal body
What surface started, colloid is covered in coal body surface, has completely cut off coal body and has been contacted with oxygen, inhibits the oxidation of coal body to make from root
With the oxidizing process of coal body is difficult to carry out downwards.Meanwhile the colloid on coal body surface is wrapped in, coal body is divided into small one by one
Small part, can prevent the transmission effect of heat between coal body.
（2）Blocking is leaked out passage, reduces oxygen concentration.Since the contact probability of loose coal and oxygen is larger, it is easier to
Generation fire.In the presence of oxygen, oxidation can just occur for coal body.Since colloid has before stable state is reached
There is certain mobility, when carrying out fire extinguishing with colloid, colloid can be deep into the crack of broken coal body, and reduction is leaked out logical
The inleakage in road, thus greatly reduces the contact action of coal body and oxygen.
（3）Absorbing and cooling temperature, reduces the oxidation activity of coal.Water is the pith for forming colloid, accounts for colloid composition
More than 90%.Since colloid can evaporate a certain amount of moisture before stable state is reached, when evaporation, can draw certain from surrounding
Heat, so as to reduce coal body environment temperature, be unfavorable for the progress of oxidation.After colloid is injected target area, by glue
The temperature of body overlay area will be greatly reduced, and the coal body oxidation heat liberation intensity in the region is reduced, and oxidation heat liberation speed is less than scattered
Thermal velocity, coal temperature gradually reduce final flame range fire and are off.
Although by the unremitting effort of domestic and foreign scholars and scientific and technical personnel, for the prediction of Conflagration Caused by Coal Self-ignition
Technology, fire protection technologies etc. have all done detailed and sturdy research, but exist for several aspects therein
But the effect of anticipation is not received in concrete practice.Its main problem is that simple sprinkling gel-like fire proofing material not only passes through
Over-burden for Ji, and this resistance of gel, it is closed have the time limit, effective time is generally only
30~50 days, thus simply do interim processing at the scene and be used and long-acting can not keep.So prepare a kind of long-acting stabilization
Type inorganic coagulation material is necessary.
The content of the invention
The technical problems to be solved by the invention：For existing
The defects of, there is provided a kind of preparation method of long-acting stable type inorganic gel fire extinguishing gel rubber material.
In order to solve the above technical problems, the technical solution adopted by the present invention is：
（1）In mass ratio 1:15, sodium humate is stirred and heated with deionized water, insulation reaction obtains mixed liquor, incited somebody to action
Ammonium sulfate is added dropwise in mixed liquor, and insulation reaction obtains modification liquid；
（2）Count in parts by weight, weigh 45~50 parts of modification liquids, 3~5 parts of cumyl peroxides and 2~3 parts of formaldehyde respectively and put
In beaker, simultaneously oil bath heating is stirred, filters to get filtrate, is prepared into gel modification liquid；
（3）Count in parts by weight, weigh 45~50 parts of obsidians, 15~20 parts of flyash, 25~30 parts of pitchstones and 15 respectively
~20 parts of perlites are placed in ball grinder, are stirred and are sieved under 350~400r/min, obtain ball-milled powder；
（4）In mass ratio 1:5, nano-calcium carbonate and ball-milled powder are stirred to obtain mixed-powder, counted in parts by weight, respectively
Weighing 85~90, deionized water, 10~15 parts of mixed-powders and 25~30 parts of carboxymethyl celluloses are stirred respectively and ultrasound is divided
Dissipate, obtain scattered suspension；
（5）By volume 1:1, scattered suspension and gel modification liquid are stirred, high speed shear processing, you can be prepared into one
The long-acting stable type inorganic gel fire extinguishing gel rubber material of kind.
Step（1）The ammonium persulfate solution drop rate is 1.5~2.0mL/min.
Step（2）The oil bath heating temperature is 100~105 DEG C.
Step（5）The high speed shear processing speed is 2500~3000r/min.
Compared with other methods, advantageous effects are the present invention：
（1）The present invention is by using sodium humate as main binding material, since the active group on sodium humate molecular structure exists
Under the action of crosslinking agent, the crosslinking between recurring structure unit, the structure after crosslinking is space grid structure, is formed at high temperature
Resin fill the intensity and heat resistance for therebetween, making it have higher again, when gel rubber material is covered to comburant surface, effectively
It is cementing and coat, while under high temperature action, cohesive viscosity is effectively improved, improve the cladding extinguishing property of material；
（2）The present invention coats intumescent inorganic material by sodium humate, it is effectively expanded in high temperature environments and discharges inside
The nano-calcium carbonate of cladding, since calcium carbonate material is decomposed at high temperature, the carbon dioxide of generation effectively reduces comburant
Efficiency of combustion, effectively puts out a fire and prevents secondary resume combustion, while the inorganic material being decomposed to form effectively coats comburant and improves close
Time span is sealed, effectively improves the long-term stability energy of fire extinguishing gel rubber material.
Embodiment
In mass ratio 1:15, sodium humate and deionized water are stirred and are heated to 85~90 DEG C, insulation reaction 15
After~20min, obtain mixed liquor and by 1.5~2.0mL/min drop rates, 5% ammonium persulfate solution of mass fraction is added dropwise to
In mixed liquor, after being added dropwise to complete, 2~3h of insulation reaction obtains modification liquid, then counts in parts by weight, and weighing 45~50 parts respectively changes
Property liquid, 3~5 parts of cumyl peroxides and 2~3 parts of formaldehyde be placed in beaker, be stirred be placed at 100~105 DEG C it is oily
Bath 3~5h of heating, filters to get filtrate, is prepared into gel modification liquid；Count in parts by weight, respectively weigh 45~50 parts of obsidians,
15~20 parts of flyash, 25~30 parts of pitchstones and 15~20 parts of perlites are placed in ball grinder, are stirred under 350~400r/min
Mix mixing and cross 500 mesh sieves, obtain ball-milled powder, in mass ratio 1:5, nano-calcium carbonate is stirred and must mixed with ball-milled powder
Powder, is counted in parts by weight, weighs 85~90 difference deionized waters, 10~15 parts of mixed-powders and 25~30 parts of carboxymethyls respectively
Cellulose is placed in beaker, is stirred simultaneously 10~15min of ultrasonic disperse, is obtained scattered suspension and by volume 1:1, will be scattered
Suspension is stirred with gel modification liquid, and 25~30min is handled in 2500~3000r/min high-speed shearing devices down cut,
A kind of long-acting stable type inorganic gel fire extinguishing gel rubber material can be prepared into.
Example 1
In mass ratio 1:15, sodium humate and deionized water are stirred and are heated to 87 DEG C, after insulation reaction 17min, is obtained
Mixed liquor simultaneously presses 1.8mL/min drop rates, and 5% ammonium persulfate solution of mass fraction is added dropwise in mixed liquor, waits to drip
Cheng Hou, insulation reaction 3h obtains modification liquid, then counts in parts by weight, respectively weigh 45 parts of modification liquids, 3 parts of cumyl peroxides and
2 parts of formaldehyde are placed in beaker, are stirred and are placed in oil bath heating 3h at 100 DEG C, filter to get filtrate, and are prepared into gel modification
Liquid；Count in parts by weight, weigh 45 parts of obsidians, 15 parts of flyash, 25 parts of pitchstones and 15 parts of perlites respectively and be placed in ball milling
In tank, it is stirred under 350r/min and crosses 500 mesh sieves, obtain ball-milled powder, in mass ratio 1:5, by nano-calcium carbonate and ball
Milling end is stirred to obtain mixed-powder, counts in parts by weight, weighs 85 difference deionized waters, 10 parts of mixed-powders and 25 respectively
Part carboxymethyl cellulose is placed in beaker, is stirred simultaneously ultrasonic disperse 10min, is obtained scattered suspension and by volume 1:1, will
Scattered suspension is stirred with gel modification liquid, handles 25min in 2500r/min high-speed shearing devices down cut, you can system
It is standby to obtain a kind of long-acting stable type inorganic gel fire extinguishing gel rubber material.
Example 2
In mass ratio 1:15, sodium humate and deionized water are stirred and are heated to 87 DEG C, after insulation reaction 17min, is obtained
Mixed liquor simultaneously presses 1.7mL/min drop rates, and 5% ammonium persulfate solution of mass fraction is added dropwise in mixed liquor, waits to drip
Cheng Hou, insulation reaction 3h obtains modification liquid, then counts in parts by weight, respectively weigh 47 parts of modification liquids, 4 parts of cumyl peroxides and
3 parts of formaldehyde are placed in beaker, are stirred and are placed in oil bath heating 4h at 102 DEG C, filter to get filtrate, and are prepared into gel modification
Liquid；Count in parts by weight, weigh 47 parts of obsidians, 17 parts of flyash, 27 parts of pitchstones and 17 parts of perlites respectively and be placed in ball milling
In tank, it is stirred under 375r/min and crosses 500 mesh sieves, obtain ball-milled powder, in mass ratio 1:5, by nano-calcium carbonate and ball
Milling end is stirred to obtain mixed-powder, counts in parts by weight, weighs 87 difference deionized waters, 12 parts of mixed-powders and 27 respectively
Part carboxymethyl cellulose is placed in beaker, is stirred simultaneously ultrasonic disperse 12min, is obtained scattered suspension and by volume 1:1, will
Scattered suspension is stirred with gel modification liquid, handles 27min in 2750r/min high-speed shearing devices down cut, you can system
It is standby to obtain a kind of long-acting stable type inorganic gel fire extinguishing gel rubber material.
Example 3
In mass ratio 1:15, sodium humate and deionized water are stirred and are heated to 90 DEG C, after insulation reaction 20min, is obtained
Mixed liquor simultaneously presses 2.0mL/min drop rates, and 5% ammonium persulfate solution of mass fraction is added dropwise in mixed liquor, waits to drip
Cheng Hou, insulation reaction 3h obtains modification liquid, then counts in parts by weight, respectively weigh 50 parts of modification liquids, 5 parts of cumyl peroxides and
3 parts of formaldehyde are placed in beaker, are stirred and are placed in oil bath heating 5h at 105 DEG C, filter to get filtrate, and are prepared into gel modification
Liquid；Count in parts by weight, weigh 50 parts of obsidians, 20 parts of flyash, 30 parts of pitchstones and 20 parts of perlites respectively and be placed in ball milling
In tank, it is stirred under 400r/min and crosses 500 mesh sieves, obtain ball-milled powder, in mass ratio 1:5, by nano-calcium carbonate and ball
Milling end is stirred to obtain mixed-powder, counts in parts by weight, weighs 90 difference deionized waters, 15 parts of mixed-powders and 30 respectively
Part carboxymethyl cellulose is placed in beaker, is stirred simultaneously ultrasonic disperse 15min, is obtained scattered suspension and by volume 1:1, will
Scattered suspension is stirred with gel modification liquid, handles 30min in 3000r/min high-speed shearing devices down cut, you can system
It is standby to obtain a kind of long-acting stable type inorganic gel fire extinguishing gel rubber material.
Inorganic coagulation material prepared by the present invention is tested for the property, specific test result is as shown in following table table 1：
1 performance test table of table
As seen from the above table, the fire extinguishing material extinguishing property that prepared by the present invention is excellent and the resistanceization time is longer.
Claims (4)
- A kind of 1. preparation method of long-acting stable type inorganic gel fire extinguishing gel rubber material, it is characterised in that specific preparation process For：（1）In mass ratio 1:15, sodium humate is stirred and heated with deionized water, insulation reaction obtains mixed liquor, incited somebody to action Ammonium sulfate is added dropwise in mixed liquor, and insulation reaction obtains modification liquid；（2）Count in parts by weight, weigh 45~50 parts of modification liquids, 3~5 parts of cumyl peroxides and 2~part formaldehyde respectively and put In beaker, simultaneously oil bath heating is stirred, filters to get filtrate, is prepared into gel modification liquid；（3）Count in parts by weight, weigh 45~50 parts of obsidians, 15~20 parts of flyash, 25~30 parts of pitchstones and 15 respectively ~20 parts of perlites are placed in ball grinder, are stirred and are sieved under 350~400r/min, obtain ball-milled powder；（4）In mass ratio 1:5, nano-calcium carbonate and ball-milled powder are stirred to obtain mixed-powder, counted in parts by weight, respectively Weighing 85~90, deionized water, 10~15 parts of mixed-powders and 25~30 parts of carboxymethyl celluloses are stirred respectively and ultrasound is divided Dissipate, obtain scattered suspension；（5）By volume 1:1, scattered suspension and gel modification liquid are stirred, high speed shear processing, you can be prepared into one The long-acting stable type inorganic gel fire extinguishing gel rubber material of kind.
- 2. a kind of preparation method of long-acting stable type inorganic gel fire extinguishing gel rubber material according to claim 1, it is special Sign is：Step（1）The ammonium persulfate solution drop rate is 1.5~2.0mL/min.
- 3. a kind of preparation method of long-acting stable type inorganic gel fire extinguishing gel rubber material according to claim 1, it is special Sign is：Step（2）The oil bath heating temperature is 100~105 DEG C.
- 4. a kind of preparation method of long-acting stable type inorganic gel fire extinguishing gel rubber material according to claim 1, it is special Sign is：Step（5）The high speed shear processing speed is 2500~3000r/min.
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| CN201711114186.3A CN107970555A (en) | 2017-11-13 | 2017-11-13 | A kind of preparation method of long-acting stable type inorganic gel fire extinguishing gel rubber material |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1004102A (en) * | 1960-11-30 | 1965-09-08 | Nils Emil Wannborg | Method of transforming water into a gel and gel forming agent for water for various purposes such as fire-extinguishing |
| US3976580A (en) * | 1975-11-07 | 1976-08-24 | Bernard Kaminstein | Gelled fire extinguisher fluid comprising polyacrylamide and bentonite |
| CN102114316A (en) * | 2010-12-22 | 2011-07-06 | 北京林丰源生态科技有限公司 | Fire proofing and extinguishing agent composite for mine and preparation and use method thereof |
| 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 |
-
2017
- 2017-11-13 CN CN201711114186.3A patent/CN107970555A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1004102A (en) * | 1960-11-30 | 1965-09-08 | Nils Emil Wannborg | Method of transforming water into a gel and gel forming agent for water for various purposes such as fire-extinguishing |
| US3976580A (en) * | 1975-11-07 | 1976-08-24 | Bernard Kaminstein | Gelled fire extinguisher fluid comprising polyacrylamide and bentonite |
| CN102114316A (en) * | 2010-12-22 | 2011-07-06 | 北京林丰源生态科技有限公司 | Fire proofing and extinguishing agent composite for mine and preparation and use method thereof |
| 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 |
Non-Patent Citations (4)
| Title |
|---|
| 中国人民共和国公安部消防局: "《中国消防手册》", 31 December 2007, 上海科学技术出版社 * |
| 付永水等: "《义马矿区煤层自然发火防治技术》", 31 August 2006, 煤炭工业出版社 * |
| 张弦等: "蒸汽驱稠油井防汽窜高温凝胶调堵体系试验研究", 《石油钻探技术》 * |
| 经建生: "《火灾科学与消防技术》", 31 October 2005, 内蒙古人民出版社 * |
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Application publication date: 20180501 |