CN109731271A - Retain the fireproofing extinguishing materials of carbon dioxide in a kind of underground - Google Patents
Retain the fireproofing extinguishing materials of carbon dioxide in a kind of underground Download PDFInfo
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- CN109731271A CN109731271A CN201910061160.XA CN201910061160A CN109731271A CN 109731271 A CN109731271 A CN 109731271A CN 201910061160 A CN201910061160 A CN 201910061160A CN 109731271 A CN109731271 A CN 109731271A
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Abstract
The invention discloses the fireproofing extinguishing materials that carbon dioxide is retained in a kind of underground, and it is 7%-25% that wherein component A, which accounts for the ratio after being made into aqueous solution, and it is 5%-8% that B component, which accounts for the ratio after being made into aqueous solution,.The main function of component A is absorbing carbon dioxide, is mainly made of alcamines, and it is 7%-25% that wherein alcamines absorbent, which accounts for the ratio after being made into aqueous solution,.B component is mainly made of waterglass and surfactant, and it is 4.5%-7.5% that wherein waterglass, which accounts for the ratio after being made into aqueous solution, and it is 0.5% that surfactant, which accounts for the ratio after being made into aqueous solution,.The beneficial effects of the invention are as follows the materials can not only retain carbon dioxide to play the role of preventing spontaneous combustionof coal, and effectively reduces the amount for the carbon dioxide being discharged into atmosphere, the discharge of greenhouse gases is alleviated, to environmental beneficial.
Description
Technical field
The invention belongs to Safety of Coal Mine Production technical field, be related to a kind of underground retain carbon dioxide fireproofing extinguishing materials and
Its application method.
Background technique
As one of global disaster, it not only causes sternly coal resources, production equipment and atmospheric environment coal spontaneous combustion fire
The destruction of weight, or even can cause casualties major accident.Mainly there are note nitrogen, note for the Prevention Technique of coal spontaneous combustion fire at present
The technologies such as yellow mud, carbon dioxide injection, wherein note yellow mud be mainly it is aqueous in yellow mud, can play cooling effect and
The surface of coal forms a protective layer, plays the role of starvation；Note nitrogen and carbon dioxide injection primarily serve reduction oxygen concentration
Effect, but since nitrogen is lighter than air, be very easy to rack away, and carbon dioxide is bigger than air specific weight, and energy
The injection high-temperature area of enough rapid, high volumes, therefore the method for injecting CO 2 reduction oxygen concentration is controlled in flame range or high-temperature area
Very big advantage is shown in reason.But since carbon dioxide is also gas, also it is easy to disappear with mine air, therefore be difficult
Protective action played to the region protected of needs for a long time, thus how by carbon dioxide fixation in the region that needs protect, and
And protective filmy layer is formed on coal body surface, play the role of starvation and prevents carbon dioxide from escaping.Simultaneously by titanium dioxide
Carbon is deposited under mine, not only acts as the purpose for reducing CO2 emission, and have the work for preventing spontaneous combustionof coal simultaneously
With will be very significant.
Summary of the invention
The purpose of the present invention is to provide the fireproofing extinguishing materials that carbon dioxide is retained in a kind of underground, beneficial effects of the present invention
It is that can absorb and retain carbon dioxide, and in one tunic of Surface Creation for losing coal or block in coal with carbon dioxide reaction
Hole plays the role of starvation and prevents carbon dioxide from escaping, which can not only retain carbon dioxide to play
The effect of spontaneous combustionof coal is prevented, and effectively reduces the amount for the carbon dioxide being discharged into atmosphere, alleviates greenhouse gases
Discharge, to environmental beneficial.
The technical scheme adopted by the invention is that fireproofing extinguishing materials are mainly grouped as by two kinds of groups of A, B.Wherein component A, which accounts for, matches
It is 7%-25% at the ratio after aqueous solution, it is 5%-8% that B component, which accounts for the ratio after being made into aqueous solution,.
Further, the main function of component A is absorbing carbon dioxide, is mainly made of alcamines, and wherein alcamines absorbs
It is 7%-25% that agent, which accounts for the ratio after being made into aqueous solution,.
Further, B component is mainly made of waterglass and surfactant, and wherein waterglass accounts for the ratio after being made into aqueous solution
Example is 4.5%-7.5%, and it is 0.5% that surfactant, which accounts for the ratio after being made into aqueous solution,.
Further, alcamines is mainly the combination of N methyldiethanol amine (MDEA) and monoethanolamine (MEA), is also possible to
Other alcamines.It is 1%-3% that wherein MEA, which accounts for the ratio after being made into aqueous solution, and the ratio that MDEA is accounted for after being made into aqueous solution is
6%-22%.
Further, surfactant is mainly neopelex or lauryl sodium sulfate, is also possible to it
His surfactant, the ratio after Zhan Peicheng aqueous solution is 0.5%.
Further, for modulus of water glass between 2.4-3.5, the ratio after Zhan Peicheng aqueous solution is 4.5%-7.5%.
Further, a kind of fire extinguishing for retaining carbon dioxide is made into the application method after aqueous solution, which is characterized in that successively
The following steps are included:
Step 1: by transport of materials to underground, it is then that two kinds of components of A, B are soluble in water, form solution；
Step 2: solution water filling or is lost in coal coal body surface and hole with entering by way of spilling with adopting mining；
Step 3: being infused by pre-buried pipeline or interim pipeline into goaf with the propulsion of coal working face
Enter carbon dioxide；
Step 4: the component A in the solution being previously implanted absorbs and storing carbon dioxide, B component and dioxy in solution
Change carbon and react produced film on the surface of coal, or the reaction blocking hole in micro-pore.
Detailed description of the invention
Fig. 1 is underground fire extinguishing system schematic diagram；
Fig. 2 is underground fire extinguishing system plan view；
The enlarged diagram on the penetrating of Fig. 3 solidified carbon dioxide fireproofing extinguishing materials coal body surface and inner hole；
Fig. 4 is the schematic diagram after fireproofing extinguishing materials and carbon dioxide reaction of the invention.
Specific embodiment
The present invention is described in detail With reference to embodiment.
Embodiment 1
The present embodiment provides fireproofing extinguishing materials and its application method that carbon dioxide is retained in a kind of underground, retain carbon dioxide
Fireproofing extinguishing materials be mainly grouped as by two kinds of groups of A, B.It is 7%-25%, B group that wherein component A, which accounts for the ratio after being made into aqueous solution,
Dividing the ratio after being made into aqueous solution that accounts for is 5%-8%.
The fireproofing extinguishing materials of the retention carbon dioxide of this implementation, by system shown in Fig. 1 to 4, the use process is as follows: will
It is transported to three kinds of materials of underground respectively by weight, takes 1 part of MEA and 6 part of MDEA absorbent to be put into agitator 1, then by weight
Amount ratio takes 4.5 parts of sodium metasilicate, 0.5 part of surfactant to be separately added into agitator 1, and 88 parts of water is finally taken to be added in agitator simultaneously
It is stirred 2 minutes, is made into fireproofing extinguishing materials solution 2.Solution is delivered in spray pump 4 using hose 3, utilizes sprinkler 5
Solution is sprayed into and loses on coal coal body surface 6 and loses in coal inner hole 7, with the propulsion of working face, contains carbon dioxide retained material
Something lost coal be lost in goaf 8, then injected into goaf 8 by pre-buried carbon dioxide injection pipe 9 (or interim pipeline)
Then great amount of carbon dioxide 10 is attached to and loses on coal coal body surface 6 and lose the solution 2 in coal inner hole 7 absorbs injection excessive two
Carbonoxide 10, and then carbon dioxide 10 reacts produced film covering coal body surface with the solution 2 lost on coal coal body surface 6, or
Solid film plugging hole is generated losing reaction in coal inner hole 7, so that starvation, plays prevention and treatment coal spontaneous combustion and absorb and retain titanium dioxide
The dual purpose of carbon reduction greenhouse gas emission.
Its whole mechanism of action can be expressed by following four chemical equation:
(1)
Alcamines in component absorbing carbon dioxide under cryogenic, to complete the retention of carbon dioxide, and compared with
Under the conditions of high-temperature, then reverse direction reaction occurs, carbon dioxide is generated, to play the role of fire extinguishing.
(2)CO2+H2O+Na2SiO3=Na2CO3+H2SiO3(precipitating film forming)
Sodium metasilicate in component can directly and carbon dioxide reaction, but reaction rate is slower, and reaction generates silicic acid, so
Silicic acid is crosslinked produced film afterwards, to play the role of closed.
Embodiment 2
The fireproofing extinguishing materials of the retention carbon dioxide of this implementation, the use process is as follows: will be transported to three kinds of materials of underground
Respectively by weight, 1.5 parts of MEA and 12 part of MDEA absorbents is taken to be put into agitator 1, then take by weight 5 parts of sodium metasilicate,
0.5 part of surfactant is separately added into agitator 1, is finally taken 81 parts of water to be added in agitator and is stirred 2 minutes, is made into
Fireproofing extinguishing materials solution 2.Solution 2 is delivered in spray pump 4 using hose 3, is sprayed into using sprinkler 5 and loses coal coal body surface 6
In upper and something lost coal inner hole 7, with the propulsion of working face, the something lost coal containing carbon dioxide retained material is lost in goaf 8, so
Great amount of carbon dioxide 10 is injected into goaf 8 by pre-buried carbon dioxide injection pipe 9 (or interim pipeline) afterwards, is then attached to
Lose on coal coal body surface 6 and lose the excess carbon dioxide 10 that the solution 2 in coal inner hole 7 absorbs injection, and then carbon dioxide 10
Produced film covering coal body surface is reacted with the solution 2 lost on coal coal body surface 6, or generates solid losing reaction in coal inner hole 7
Film plugging hole, so that starvation, plays prevention and treatment coal spontaneous combustion and absorb and retain the dual of carbon dioxide reduction greenhouse gas emission
Purpose.
Embodiment 3
The fireproofing extinguishing materials of the retention carbon dioxide of this implementation, the use process is as follows: will be transported to three kinds of materials of underground
Respectively by weight, 3 parts of MEA and 22 part of MDEA absorbents is taken to be put into agitator 1, then take by weight 7.5 parts of sodium metasilicate,
0.5 part of surfactant is separately added into agitator 1, is finally taken 67 parts of water to be added in agitator and is stirred 2 minutes, is made into
Fireproofing extinguishing materials solution 2.Solution is delivered in spray pump 4 using hose 3, is sprayed into and is lost on coal coal body surface 6 using sprinkler 5
In something lost coal inner hole 7, with the propulsion of working face, the something lost coal containing carbon dioxide retained material is lost in goaf 8, then
Great amount of carbon dioxide 10 is injected into goaf 8 by pre-buried carbon dioxide injection pipe 9 (or interim pipeline), is then attached to something lost
On coal coal body surface 6 and lose the excess carbon dioxide 10 that the solution 2 in coal inner hole 7 absorbs injection, and then carbon dioxide 10 with
It loses the solution 2 on coal coal body surface 6 and reacts produced film covering coal body surface, or generate solid film losing reaction in coal inner hole 7
Plugging hole, so that starvation, plays prevention and treatment coal spontaneous combustion and absorb and retain the dual mesh that carbon dioxide reduces greenhouse gas emission
's.
The advantages of material of the present invention, also resides in:
(1) existing titanium dioxide near working face can be absorbed in the fireproofing extinguishing materials of solidified carbon dioxide provided by the invention
Carbon, to play the role of purifying coal work environmental quality；
(2) fireproofing extinguishing materials of solidified carbon dioxide provided by the invention can not only absorb retention carbon dioxide, and
It can be by reacting blocking hole in coal body Surface Creation film and in coal hole with carbon dioxide reaction, to prevent titanium dioxide
The escape of carbon and the entrance of oxygen, carbon dioxide is deposited under mine, not only acts as the effect for preventing spontaneous combustionof coal, and
Have the function of reducing greenhouse gas emission simultaneously.
The above is only not to make limit in any form to the present invention to better embodiment of the invention
System, any simple modification that embodiment of above is made according to the technical essence of the invention, equivalent variations and modification,
Belong in the range of technical solution of the present invention.
Claims (7)
1. the fireproofing extinguishing materials that carbon dioxide is retained in a kind of underground, it is characterised in that: be grouped as by two kinds of groups of A, B, wherein component A
Accounting for the ratio after being made into aqueous solution is 7%-25%, and it is 5%-8% that B component, which accounts for the ratio after being made into aqueous solution,.
2. the fireproofing extinguishing materials of carbon dioxide are retained in a kind of underground according to claim 1, it is characterised in that: the component A
Effect is absorbing carbon dioxide, is made of alcamines, and it is 7%- that wherein alcamines absorbent, which accounts for the ratio after being made into aqueous solution,
25%.
3. the fireproofing extinguishing materials of carbon dioxide are retained in a kind of underground according to claim 1, it is characterised in that: the B component
It is made of waterglass and surfactant, it is 4.5%-7.5%, surface-active that wherein waterglass, which accounts for the ratio after being made into aqueous solution,
It is 0.5% that agent, which accounts for the ratio after being made into aqueous solution,.
4. the fireproofing extinguishing materials of carbon dioxide are retained in a kind of underground according to claim 2, it is characterised in that: the alcamines
For the combination of N methyldiethanol amine MDEA and monoethanolamine MEA；It is 1%-3% that wherein MEA, which accounts for the ratio after being made into aqueous solution,
It is 6%-22% that MDEA, which accounts for the ratio after being made into aqueous solution,.
5. the fireproofing extinguishing materials of carbon dioxide are retained in a kind of underground according to claim 3, it is characterised in that: the surface is living
Property agent be neopelex or lauryl sodium sulfate, the ratio after Zhan Peicheng aqueous solution is 0.5%.
6. the fireproofing extinguishing materials of carbon dioxide are retained in a kind of underground according to claim 3, it is characterised in that: the waterglass
For modulus between 2.4-3.5, the ratio after Zhan Peicheng aqueous solution is 4.5%-7.5%.
7. the preparation method of the fireproofing extinguishing materials of carbon dioxide is retained in a kind of underground according to claim 1, it is characterised in that
It follows the steps below:
Step 1: by transport of materials to underground, it is then that two kinds of components of A, B are soluble in water, form solution；
Step 2: solution water filling or is lost in coal coal body surface and hole with entering by way of spilling with adopting mining；
Step 3: injecting two into goaf by pre-buried pipeline or interim pipeline with the propulsion of coal working face
Carbonoxide；
Step 4: the component A in the solution being previously implanted absorbs and storing carbon dioxide, B component and carbon dioxide in solution
Produced film is reacted on the surface of coal, or the reaction blocking hole in micro-pore.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910061160.XA CN109731271A (en) | 2019-01-23 | 2019-01-23 | Retain the fireproofing extinguishing materials of carbon dioxide in a kind of underground |
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| CN201910061160.XA CN109731271A (en) | 2019-01-23 | 2019-01-23 | Retain the fireproofing extinguishing materials of carbon dioxide in a kind of underground |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5945025A (en) * | 1997-12-08 | 1999-08-31 | Cunningham; James A. | Fire extinguishing composition and method for fire extinguishing |
| CN105126289A (en) * | 2015-07-17 | 2015-12-09 | 煤炭科学技术研究院有限公司 | Underground coal mine fire preventing and extinguishing material and using method thereof |
| CN107929993A (en) * | 2017-11-16 | 2018-04-20 | 北京市化工职业病防治院 | A kind of fire extinguishing colloidal materials and preparation method and application |
-
2019
- 2019-01-23 CN CN201910061160.XA patent/CN109731271A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5945025A (en) * | 1997-12-08 | 1999-08-31 | Cunningham; James A. | Fire extinguishing composition and method for fire extinguishing |
| CN105126289A (en) * | 2015-07-17 | 2015-12-09 | 煤炭科学技术研究院有限公司 | Underground coal mine fire preventing and extinguishing material and using method thereof |
| CN107929993A (en) * | 2017-11-16 | 2018-04-20 | 北京市化工职业病防治院 | A kind of fire extinguishing colloidal materials and preparation method and application |
Non-Patent Citations (4)
| Title |
|---|
| 周福宝等: "《巷道喷涂防止煤炭自燃新技术》", 30 November 2011, 中国矿业大学出版社 * |
| 杨兴兵等: "煤矿阻化材料的研究进展", 《应用化工》 * |
| 沈浚: "《合成氨》", 31 January 2001, 化学工业出版社 * |
| 陈思铭等: "醇胺溶液吸收CO2的动力学研究进展", 《化工进展》 * |
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