CN105126289A - Underground coal mine fire preventing and extinguishing material and using method thereof - Google Patents
Underground coal mine fire preventing and extinguishing material and using method thereof Download PDFInfo
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Abstract
The invention discloses an underground coal mine fire preventing and extinguishing material and method. The underground coal mine fire preventing and extinguishing material comprises, by weight, 2 parts to 3.5 parts of water glass, 1.5 parts to 2.5 parts of sodium metaaluminate and 95 parts to 96 parts of water. Under the condition that it is ensured that the fire preventing and extinguishing material has the enough fluidity, the water-retaining property of the material can be effectively improved, the underground coal mine fire preventing and extinguishing work effect can be greatly improved, and the coal mine production safety can be forcefully ensured.
Description
Technical field
The present invention relates to a kind of underground coal mine fireproofing extinguishing materials and using method thereof.
Background technology
An important restriction factor of seam mining is coal body spontaneous combustion, and the mine fire caused by it has a strong impact on colliery and normally produces.First, in coal body spontaneous combustion process, a large amount of CO can be produced, people can be made poisoning lethal, drastically influence coal mine production safety; Secondly, when coal body spontaneous combustion is comparatively serious, coal-face can be caused to stop production, have a strong impact on coal production efficiency; Again, when coal body spontaneous combustion is very serious, will form large area flame range at coal-face, coal-face will have to close, and large number quipments cannot be removed and move, and can only be retained in flame range, and colliery will suffer serious financial consequences.
China promotes grouting preventing and extinguishing fire technology from the 1950's in colliery.Because China's coal mines distributional region is wide, there is different geographic climates in zones of different, and developing mining conditions is different, causes fire extinguishing system and various fireproofing extinguishing materials application conditions to there is larger difference.Northern area lack of water and winter climate severe cold, ground grouting system cannot use at winter-spring season.The Northwest's loess resource enriches, and working seam mostly is half-edge coal seam, exist the advantage of yellow mud as a large amount of grouting material, but yellow mud easily precipitates blocking pipeline.Shandong, area, Jiangsu and Anhui, shortage of land resource, soil source, Guizhou province is rare, and restriction yellow mud is as the popularization of preventive grouting on a large scale.
The aspects such as the lifting of original preventing and extinguishing fire technology equipment performance and novel fireproofing extinguishing materials development are mainly concentrated on after the nineties.Widely used fireproofing extinguishing materials is the carbon ammonium gel that carbonic hydroammonium and waterglass are mixed, and administers for down-hole coal road roof fall and Coal Pillar Spontaneous Combustion.Because carbon ammonium gel can decomposite ammonia when high temperature, there is obvious ammonia taste, pollute subsurface environment, and, what is more important, the decomposition of carbon ammonium gel will affect its mobility greatly, the performance such as water conservation, cooling, and then have a strong impact on fire extinguishing effect, therefore, the effect of carbon ammonium gel in the operation of underground coal mine fire extinguishing is unsatisfactory.
In sum, in prior art, there is no a kind of strong mobility, and the fireproofing extinguishing materials of the function admirables such as covering, filling, water conservation and cooling.
Summary of the invention
The invention provides a kind of underground coal mine fireproofing extinguishing materials, there is high fluidity, very adapt to the operation of underground coal mine long distance delivery, and there is extremely strong water-retaining property, cooling property and spreadability, to down-hole coal body spontaneous combustion to put out effect very good.
The technical solution used in the present invention is as follows:
A kind of underground coal mine fireproofing extinguishing materials, composition contains waterglass, sodium metaaluminate and water, and waterglass accounts for 2-3.5 part (weight), and sodium metaaluminate accounts for 1.5-2.5 part, and water accounts for 95-96 part (weight).
In above-mentioned underground coal mine fireproofing extinguishing materials, waterglass accounts for 2.5-3.5 part (weight), and sodium metaaluminate accounts for 1.5-2.5 part (weight), and water accounts for 95-96 part (weight).
In above-mentioned underground coal mine fireproofing extinguishing materials, waterglass accounts for 2.7 parts (weight), and sodium metaaluminate accounts for 1.5-2.3 part (weight), and water accounts for 95-95.8 part (weight).
In above-mentioned underground coal mine fireproofing extinguishing materials, waterglass accounts for 2.7 parts (weight), and sodium metaaluminate accounts for 2.2 parts (weight), and water accounts for 95.1 parts (weight).
A kind of underground coal mine fire extinguishing method, uses above-mentioned underground coal mine fireproofing extinguishing materials to carry out fire extinguishing, comprises the steps:
A () arranges water glass solution preparation station and sodium aluminate solution preparation station at grass, there is spontaneous combustion or there is spontaneous combustion hidden danger region to close in tunnel at down-hole, install sodium metaaluminate gel preparation station, described water glass solution preparation station is connected with described sodium metaaluminate gel preparation station with the second transfer pipeline respectively by the first transfer pipeline with described sodium aluminate solution preparation station, at described first transfer pipeline, the first control valve and waterglass delivery pump are installed, described second transfer pipeline is installed sodium aluminate solution delivery pump and the second control valve, described first control valve and the second control valve are closed condition,
B () is from the position of installing described sodium metaaluminate gel preparation station, there is spontaneous combustion or there is spontaneous combustion hidden danger region to drill to described in isolated coal pillar, some boring is got according to region area size, be connected with flow divider by the 3rd transfer pipeline, and described current divider is connected with described sodium metaaluminate gel preparation station, on described 3rd transfer pipeline, corresponding installation by-pass valve control of holing described in each, described by-pass valve control is closed condition;
C () makes water glass solution by described water glass solution preparation station, waterglass accounts for 2-3.5 part (weight), water accounts for 60-69 part (weight), sodium aluminate solution is made by described sodium aluminate solution preparation station (2), wherein, sodium metaaluminate accounts for 1.5-2.5 part (weight);
D () opens described first control valve, by described water glass solution delivery pump, a certain amount of described water glass solution is delivered to described sodium metaaluminate gel preparation station through the first transfer pipeline, open described second control valve simultaneously, by described sodium aluminate solution delivery pump, a certain amount of described sodium aluminate solution is delivered to described sodium metaaluminate gel preparation station through described second transfer pipeline, mix with described water glass solution, stir, form sodium metaaluminate gel, in described sodium metaaluminate gel, waterglass accounts for 2-3.5 part (weight), sodium metaaluminate accounts for 1.5-2.5 part (weight), water accounts for 95-96 part (weight),
E () opens whole described by-pass valve control, make described sodium metaaluminate gel by described current divider, and the 3rd transfer pipeline and described boring enter into and spontaneous combustion occurs or there is spontaneous combustion hidden danger region, carry out fire extinguishing operation;
F there is spontaneous combustion or there is spontaneous combustion hidden danger region to monitor in (), coal body spontaneous combustion to be confirmed is put out, or hidden danger is eliminated, and closes whole described by-pass valve control, closes described first control valve and the second control valve to described, terminate fire extinguishing operation.
In above-mentioned underground coal mine fire extinguishing method, water glass solution is made by described water glass solution preparation station, waterglass accounts for 2-3 part (weight), water accounts for 68 parts (weight), sodium aluminate solution is made by described sodium aluminate solution preparation station, wherein, sodium metaaluminate accounts for 1.5-2.5 part (weight), and water accounts for 27-28 part (weight).
In above-mentioned underground coal mine fire extinguishing method, water glass solution is made by described water glass solution preparation station, waterglass accounts for 2.7 parts (weight), water accounts for 68 parts (weight), sodium aluminate solution is made by described sodium aluminate solution preparation station, sodium metaaluminate accounts for 2.2 parts (weight), and water accounts for 27.1 parts (weight).
Technique scheme of the present invention has the following advantages compared to existing technology:
1. underground coal mine fireproofing extinguishing materials provided by the invention, because composition includes waterglass, sodium metaaluminate and water, wherein, waterglass accounts for 2-3.5 part (weight), and sodium metaaluminate accounts for 1.5-2.5 part, water accounts for 95-96 part (weight), the performance that the mobility that made it possess and water-retaining property have concurrently, and with low cost, therefore, the present invention effectively can improve underground coal mine fire extinguishing operation effectiveness, ensures coal mine production safety greatly.
2. underground coal mine fireproofing extinguishing materials provided by the invention, 2.5-3.5 part (weight) is accounted at waterglass, sodium metaaluminate accounts for 1.5-2.5 part (weight), under water accounts for 95-96 part (weight) situation, its mobility and water-retaining property are for the operation of underground coal mine fire extinguishing, when ensureing enough mobility, water-retaining property is obviously promoted.
3. underground coal mine fireproofing extinguishing materials provided by the invention, account for 2.7 parts (weight) at waterglass, sodium metaaluminate accounts for 2.2 parts (weight), under water accounts for 95.1 parts of (weight) situations, its mobility and water-retaining property are for the operation of underground coal mine fire extinguishing, when ensureing enough mobility, water-retaining property obtains optimum state, and fire extinguishing effect is optimum.
4. underground coal mine fire extinguishing method provided by the invention, owing to being prepare waterglass, sodium aluminate solution respectively on ground, close on fire extinguishing operating area to mix, form final fireproofing extinguishing materials, therefore, the present invention effectively can improve the water-retaining property of fireproofing extinguishing materials, effectively ensures fire extinguishing operation effectiveness, effectively ensures coal mine production safety.
Accompanying drawing explanation
In order to make content of the present invention be more likely to be clearly understood, below according to a particular embodiment of the invention and by reference to the accompanying drawings, the present invention is further detailed explanation, wherein
Fig. 1 is that underground coal mine fire extinguishing material method of the present invention is implemented to arrange schematic diagram;
In figure, Reference numeral is expressed as: 1-water glass solution preparation station, 2-sodium aluminate solution preparation station, 3-sodium metaaluminate gel preparation station, 4-first transfer pipeline, 5-second transfer pipeline, 6-first control valve, 7-waterglass delivery pump, 8-second control valve, 9-sodium aluminate solution delivery pump, 10-isolated coal pillar, 11-holes, 12-the 3rd transfer pipeline, 13-flow divider, 14-by-pass valve control.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearly, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
Embodiment one
Described underground coal mine fireproofing extinguishing materials, composition contains waterglass, sodium metaaluminate and water, and waterglass accounts for 2-3.5 part (weight), and sodium metaaluminate accounts for 1.5-2.5 part, and water accounts for 95-96 part (weight).
Described underground coal mine fire extinguishing method, uses above-mentioned underground coal mine fireproofing extinguishing materials to carry out fire extinguishing, comprises the steps:
A () is at grass, water glass solution preparation station 1 and sodium aluminate solution preparation station 2 are set, below mine, there is spontaneous combustion or there is spontaneous combustion hidden danger region to close in tunnel, install sodium metaaluminate gel preparation station 3, described water glass solution preparation station 1 is connected with described sodium metaaluminate gel preparation station 3 with the second transfer pipeline 5 respectively by the first transfer pipeline 4 with described sodium aluminate solution preparation station 2, described first transfer pipeline 4 installs the first control valve 6 and waterglass delivery pump 7, described second transfer pipeline 5 installs the second control valve 8 and sodium aluminate solution delivery pump 9, described first control valve 6 and the second control valve 8 are closed condition,
B () is from the position of installing described sodium metaaluminate gel preparation station 3, there is spontaneous combustion or there is spontaneous combustion hidden danger region to drill to described in isolated coal pillar 10, some boring 11 is got according to region area size, be connected with flow divider 13 by the 3rd transfer pipeline 12, and described current divider 13 is connected with described sodium metaaluminate gel preparation station 3, on described 3rd transfer pipeline 12, a by-pass valve control 14 is installed in corresponding boring 11 described in each, and described by-pass valve control 14 is closed condition;
C () makes water glass solution by described water glass solution preparation station 1, waterglass accounts for 2-3.5 part (weight), water accounts for 60-69 part (weight), sodium aluminate solution is made by described sodium aluminate solution preparation station 2, wherein, sodium metaaluminate accounts for 1.5-2.5 part (weight);
D () opens described first control valve 6, by described water glass solution delivery pump 7, a certain amount of described water glass solution is delivered to described sodium metaaluminate gel preparation station 3 through described first transfer pipeline 4, open described second control valve 8 simultaneously, by described sodium aluminate solution delivery pump 9, a certain amount of described sodium aluminate solution is delivered to described sodium metaaluminate gel preparation station 3 through described second transfer pipeline 5, mix with described water glass solution, stir, form sodium metaaluminate gel, in described sodium metaaluminate gel, waterglass accounts for 2-3.5 part (weight), sodium metaaluminate accounts for 1.5-2.5 part (weight), water accounts for 95-96 part (weight),
E () opens whole described by-pass valve control 14, make described sodium metaaluminate gel by described current divider 13, and described 3rd transfer pipeline 12 and described boring 11 enter into and spontaneous combustion occurs or there is spontaneous combustion hidden danger region, carry out fire extinguishing operation;
Spontaneous combustion has been there is or there is spontaneous combustion hidden danger region to monitor in (f) to described, coal body spontaneous combustion to be confirmed is put out, or hidden danger is eliminated, and closes whole described by-pass valve control 14, close described first control valve 6 and the second control valve 8, terminate fire extinguishing operation.
Embodiment two
In described underground coal mine fireproofing extinguishing materials, waterglass accounts for 2.5-3.5 part (weight), and sodium metaaluminate accounts for 1.5-2.5 part (weight), and water accounts for 95-96 part (weight).
Described underground coal mine fire extinguishing method, use above-mentioned underground coal mine fireproofing extinguishing materials to carry out fire extinguishing, step is substantially identical with embodiment one, only following 2 differences:
In step (c), water glass solution is made by described water glass solution preparation station 1, waterglass accounts for 2.5-3.5 part (weight), water accounts for 68 parts (weight), sodium aluminate solution is made by described sodium aluminate solution preparation station (2), wherein, sodium metaaluminate accounts for 1.5-2.5 part (weight), and water accounts for 27-28 part (weight);
In the described sodium metaaluminate gel formed in step (d), waterglass accounts for 2.5-3.5 part (weight), and sodium metaaluminate accounts for 1.5-2.5 part (weight), and water accounts for 95-96 part (weight).
Embodiment three
In described underground coal mine fireproofing extinguishing materials, waterglass accounts for 2.7 parts (weight), and sodium metaaluminate accounts for 1.5-2.3 part (weight), and water accounts for 95-95.8 part (weight).
Described underground coal mine fire extinguishing method, use above-mentioned underground coal mine fireproofing extinguishing materials to carry out fire extinguishing, step is substantially identical with embodiment one, only following 2 differences:
In step (c), water glass solution is made by described water glass solution preparation station 1, waterglass accounts for 2.7 parts (weight), water accounts for 68 parts (weight), sodium aluminate solution is made by described sodium aluminate solution preparation station 2, wherein, sodium metaaluminate accounts for 1.5-2.3 part (weight), and water accounts for 27-27.8 part (weight);
In the described sodium metaaluminate gel formed in step (d), waterglass accounts for 2.7 parts (weight), and sodium metaaluminate accounts for 1.5-2.3 part (weight), and water accounts for 95-95.8 part (weight).
Embodiment four
In described underground coal mine fireproofing extinguishing materials, waterglass accounts for 2.7% (weight), and sodium metaaluminate accounts for 2.2% (weight), and water accounts for 95.1% (weight).
Described underground coal mine fire extinguishing method, use above-mentioned underground coal mine fireproofing extinguishing materials to carry out fire extinguishing, step is identical with embodiment one, only following 2 differences:
In step (c), water glass solution is made by described water glass solution preparation station 1, waterglass accounts for 2.7 parts (weight), water accounts for 68 parts (weight), sodium aluminate solution is made by described sodium aluminate solution preparation station 2, sodium metaaluminate accounts for 2.2 parts (weight), and water accounts for 27.1 parts (weight);
In the described sodium metaaluminate gel formed in step (d), waterglass accounts for 2.7 parts (weight), and sodium metaaluminate accounts for 2.2 parts (weight), and water accounts for 95.1 parts (weight).
Obviously, above-described embodiment is only for clearly example being described, and the restriction not to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.And thus the apparent change of extending out or variation be still among the protection domain of the invention.
Claims (8)
1. a underground coal mine fireproofing extinguishing materials, is characterized in that: composition contains waterglass, sodium metaaluminate and water, and waterglass accounts for 2-3.5 part (weight), and sodium metaaluminate accounts for 1.5-2.5 part, and water accounts for 95-96 part (weight).
2. underground coal mine fireproofing extinguishing materials according to claim 1, is characterized in that: described waterglass accounts for 2.5-3.5 part (weight), and sodium metaaluminate accounts for 1.5-2.5 part (weight), and water accounts for 95-96 part (weight).
3. underground coal mine fireproofing extinguishing materials according to claim 2, is characterized in that: described waterglass accounts for 2.7 parts (weight), and sodium metaaluminate accounts for 1.5-2.3 part (weight), and water accounts for 95-95.8 part (weight).
4., according to the arbitrary described underground coal mine fireproofing extinguishing materials of claim 1-3, it is characterized in that: described waterglass accounts for 2.7 parts (weight), sodium metaaluminate accounts for 2.2 parts (weight), and water accounts for 95.1 parts (weight).
5. a underground coal mine fire extinguishing method, is characterized in that: use the underground coal mine fireproofing extinguishing materials described in claim 1 to carry out fire extinguishing, comprise the steps:
A () is at grass, water glass solution preparation station (1) and sodium aluminate solution preparation station (2) are set, below mine, there is spontaneous combustion or there is spontaneous combustion hidden danger region to close in tunnel, install sodium metaaluminate gel preparation station (3), described water glass solution preparation station (1) is connected with described sodium metaaluminate gel preparation station (3) with the second transfer pipeline (5) respectively by the first transfer pipeline (4) with described sodium aluminate solution preparation station (2), at upper installation first control valve (6) of described first transfer pipeline (4) and waterglass delivery pump (7), at upper installation second control valve (8) of described second transfer pipeline (5) and sodium aluminate solution delivery pump (9), described first control valve (6) and the second control valve (8) are closed condition,
B () is from the position of installing described sodium metaaluminate gel preparation station (3), described in isolated coal pillar (10) introversion, there is spontaneous combustion or there is spontaneous combustion hidden danger region to drill, some boring (11) is got according to region area size, be connected with flow divider (13) by the 3rd transfer pipeline (12), and described current divider (13) is connected with described sodium metaaluminate gel preparation station (3), on described 3rd transfer pipeline (12), a by-pass valve control (14) is installed in corresponding boring (11) described in each, described by-pass valve control (14) is closed condition,
C () makes water glass solution by described water glass solution preparation station (1), waterglass accounts for 2-3.5 part (weight), water accounts for 60-69 part (weight), sodium aluminate solution is made by described sodium aluminate solution preparation station (2), wherein, sodium metaaluminate accounts for 1.5-2.5 part (weight);
D () opens described first control valve (6), by described water glass solution delivery pump (7), a certain amount of described water glass solution is delivered to described sodium metaaluminate gel preparation station (3) through described first transfer pipeline (4), open described second control valve (8) simultaneously, by described sodium aluminate solution delivery pump (9), a certain amount of described sodium aluminate solution is delivered to described sodium metaaluminate gel preparation station (3) through described second transfer pipeline (5), mix with described water glass solution, stir, form sodium metaaluminate gel, in described sodium metaaluminate gel, waterglass accounts for 2-3.5 part (weight), sodium metaaluminate accounts for 1.5-2.5 part (weight), water accounts for 95-96 part (weight),
E () opens whole described by-pass valve control (14), make described sodium metaaluminate gel by described current divider (13), described 3rd transfer pipeline (12) and described boring (11) enter into and spontaneous combustion occur or there is spontaneous combustion hidden danger region, carry out fire extinguishing operation;
Spontaneous combustion has been there is or there is spontaneous combustion hidden danger region to monitor in (f) to described, coal body spontaneous combustion to be confirmed is put out, or hidden danger is eliminated, close whole described by-pass valve control (14), close described first control valve (6) and the second control valve (8), terminate fire extinguishing operation.
6. underground coal mine fire extinguishing method according to claim 5, it is characterized in that: in step (c), water glass solution is made by described water glass solution preparation station (1), waterglass accounts for 2.5-3.5 part (weight), water accounts for 68 parts (weight), sodium aluminate solution is made by described sodium aluminate solution preparation station (2), wherein, sodium metaaluminate accounts for 1.5-2.5 part (weight), and water accounts for 27-28 part (weight);
In the described sodium metaaluminate gel formed in step (d), waterglass accounts for 2.5-3.5 part (weight), and sodium metaaluminate accounts for 1.5-2.5 part (weight), and water accounts for 95-96 part (weight).
7. underground coal mine fire extinguishing method according to claim 6, it is characterized in that: in step (c), water glass solution is made by described water glass solution preparation station (1), waterglass accounts for 2.7 parts (weight), water accounts for 68 parts (weight), sodium aluminate solution is made by described sodium aluminate solution preparation station (2), wherein, sodium metaaluminate accounts for 1.5-2.3 part (weight), and water accounts for 27-27.8 part (weight);
In the described sodium metaaluminate gel formed in step (d), waterglass accounts for 2.7 parts (weight), and sodium metaaluminate accounts for 1.5-2.3 part (weight), and water accounts for 95-95.8 part (weight).
8. underground coal mine fire extinguishing method according to claim 7, it is characterized in that: in step (c), water glass solution is made by described water glass solution preparation station (1), waterglass accounts for 2.7 parts (weight), water accounts for 68 parts (weight), make sodium aluminate solution by described sodium aluminate solution preparation station (2), sodium metaaluminate accounts for 2.2 parts (weight), and water accounts for 27.1 parts (weight);
In the described sodium metaaluminate gel formed in step (d), waterglass accounts for 2.7 parts (weight), and sodium metaaluminate accounts for 2.2 parts (weight), and water accounts for 95.1 parts (weight).
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| CN109137883A (en) * | 2018-08-25 | 2019-01-04 | 大同煤矿集团有限责任公司 | Goaf perfusion loess consolidating agent prevents spontaneous combustion system and its grouting method |
| CN109731271A (en) * | 2019-01-23 | 2019-05-10 | 山东科技大学 | Retain the fireproofing extinguishing materials of carbon dioxide in a kind of underground |
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Application publication date: 20151209 |