CN102182497B - Foam preparation device for preventing and extinguishing coal mine fire - Google Patents
Foam preparation device for preventing and extinguishing coal mine fire Download PDFInfo
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- CN102182497B CN102182497B CN201110068506.2A CN201110068506A CN102182497B CN 102182497 B CN102182497 B CN 102182497B CN 201110068506 A CN201110068506 A CN 201110068506A CN 102182497 B CN102182497 B CN 102182497B
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- agitator
- inlet pipe
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Abstract
The invention relates to a foam preparation device for preventing and extinguishing coal mine fire. The foam preparation device comprises a slurry injection inlet pipe, a filter, a sewage discharge outlet pipe, a static mixing agitator, a foam maker, an air inlet pipe, an air compressor or a nitrogen injection machine and a slurry injection outlet pipe, wherein the filter is connected with an outlet end of the slurry injection inlet pipe, and a filter screen is installed in the filter; the sewage discharge outlet pipe is communicated with the filter; the static mixing agitator is connected with an outlet end of the filter; the foam maker is connected with an outlet end of the static mixing agitator; the air inlet pipe is arranged on the cylinder wall of the foam maker, and a cut-off valve, an air inlet pipe pressure gauge and an air inlet pipe valve are installed on the air inlet pipe in sequence; the air compressor or the nitrogen injection machine is communicated with the foam maker through the air inlet pipe; and the slurry injection outlet pipe is connected with an output end of the foam maker. The static mixing agitator comprises an agitator cylinder body, an agitator center shaft, a long barrier sheet and a short barrier sheet, a circulating hole is arranged on the long barrier sheet, the diameter of the long barrier sheet is greater than that of the short barrier sheet, and the locating sleeve is arranged between the long barrier sheet and the short barrier sheet. The foam preparation device provided by the invention has a compact and reasonable structure, is convenient to maintain, is applicable to underground rapid extinguishing of coal mines and can be used for efficiently preventing and controlling coal spontaneous combustion fire.
Description
Technical field
The present invention relates to a kind of foam preparation facilities, particularly a kind of for put out fast and prevent the foam preparation facilities of Conflagration Caused by Coal Self-ignition under coal mine.
Background technology
Spontaneous combustionof coal is one of China's mine Major Natural Disasters, in China's State owned coal mine, the fire that Conflagration Caused by Coal Self-ignition causes accounts for 90% of mine fire sum, the Xinjiang of China, Ningxia, the provinces such as the Inner Mongol also exist large-area coalfield fire, annual scaling loss coal amount reaches 1000～1,360 ten thousand tons, economic loss is over 20,000,000,000 yuan, and the coalfield fire also causes large-area vegetation deterioration, make the soil desertification, the mine coexisted for spontaneous combustionof coal and gas hidden danger, if the spontaneous combustionof coal control is not in place, be easy to cause gas explosion by spontaneous combustion of coal, cause great especially casualties and economic loss.Spontaneous combustionof coal also can produce a large amount of SO in addition
2, CO, CO
2deng toxic gas, serious environment pollution, for effectively preventing and treating spontaneous combustionof coal, adopted gassiness (nitrogen or air), solid, liquid three-phase froth to be prevented and treated spontaneous combustionof coal in recent years, obtained effect preferably.But particular surroundings and condition due to colliery; contain impurity or large solid particle in mix slurry; existing a kind of preparation facilities of the foam for preventing and extinguishing fire of coal mine is the mix and blend poor effect usually; and the plugging phenomenon easily occurs; cause and can not form continuously three-phase froth; due to the defect of above two conditions, three-phase froth is restricted in the promoting the use of of mine.For this present situation, be badly in need of developing a kind of for put out fast and prevent a kind of preparation facilities of the foam for preventing and extinguishing fire of coal mine of Conflagration Caused by Coal Self-ignition under coal mine.
Summary of the invention
The purpose of this invention is to provide a kind of reasonable in design, simple in structure, preparation facilities of the foam for preventing and extinguishing fire of coal mine that foaming effect is good.
To achieve these goals, the present invention takes following technical solution:
Foam preparation facilities for preventing and extinguishing fire of coal mine, comprising: the slip casting inlet pipe; Strainer with the slip casting inlet pipe port of export is connected, be equipped with screen pack in strainer; The blowdown linked with strainer goes out pipe; The static mixing agitator be connected with the filter outlet end; The foam maker be connected with the static mixing agitator port of export; Be arranged at the air inlet pipe on the foam maker barrel, on air inlet pipe, order is equipped with non retern valve, suction press table and air inlet pipe valve; The air compressor linked by air inlet pipe and foam maker or notes nitrogen machine; The slip casting be connected with the foam maker port of export goes out pipe; The static mixing agitator comprises: the agitator cylindrical shell; Be installed on the agitator central axis in the agitator cylindrical shell; Alternate intervals is installed on the obstruct lengthy motion picture on the agitator central axis and intercepts short-movie, intercepts on lengthy motion picture opening is set, and the diameter that intercepts lengthy motion picture is greater than the diameter that intercepts short-movie.
Preferably, intercept between lengthy motion picture and obstruct short-movie and be provided with positioning sleeve.
Preferably, be arranged on the opening that a slice of agitator central axis intercepts on lengthy motion picture and intercept opening mutual dislocation layout on lengthy motion picture with adjacent a slice.
Preferably, to intercept on lengthy motion picture between the opening center of circle and agitator central axis axle center on line and adjacent a slice obstruct lengthy motion picture the angle between line between the opening center of circle and agitator central axis axle center be 180 ° to a slice.
Preferably, the diameter of obstruct lengthy motion picture equates with the internal diameter of agitator cylindrical shell.
Static mixing agitator of the present invention makes mix slurry flow into from the opening that intercepts lengthy motion picture, through intercepting the Clearance Flow between short-movie and agitator cylinder inboard wall, mix slurry is mixed along S shape channel flow in the agitator cylindrical shell, make mix slurry fully be mixed, compared with prior art simultaneously, only the blender axis that stirring vane has been installed need be packed in blender and get final product, easy for installation, material is difficult for plugging, use reliable, can the commute ember play a very good protection, and can effectively put out a fire to the fire occurred, compact conformation is reasonable, be convenient to safeguard, be applicable under coal mine put out fast and the high-efficiency prevention and control Conflagration Caused by Coal Self-ignition.
The accompanying drawing explanation
The structural representation that Fig. 1 is one embodiment of the invention;
The structural representation that Fig. 2 is static mixing agitator of the present invention.
The specific embodiment
As shown in Figure 1, the preparation facilities of the foam for preventing and extinguishing fire of coal mine of the present invention comprises that slip casting inlet pipe 1, arrival end flow valve 2, strainer 3, screen pack 4, blowdown go out pipe 5, pressure meter 6, static mixing agitator 7, foam maker 8, non retern valve 9, air inlet pipe 10, air compressor 11, port of export valve 12, suction press table 13, air inlet pipe valve 14, blowoff valve 15, slip casting and go out pipe 16.
Slip casting inlet pipe 1 links by flange and threaded fastener and strainer 3, arrival end valve 2 is installed on slip casting inlet pipe 1, mix slurry is from slip casting inlet pipe 1 inflow filter 3, screen pack 4 is installed in strainer 3, strainer 3 bottoms are provided with blowdown and go out pipe 5, blowdown goes out on pipe 5 blowoff valve 15 is installed, strainer 3 ports of export are equipped with pressure meter 6, pressure meter 6 links by flange and threaded fastener and static mixing agitator 7 for detection of strainer 3 internal pressure strainers 3, static mixing agitator 7 of the present invention does not need Motor Drive, mix slurry after filter 3 filters enters in static mixing agitator 7 and mixes under the rotation circulation immixture of fluid self, obtain good mixed effect.Static mixing agitator 7 links by flange and threaded fastener and foam maker 8, one air inlet pipe 10 is installed on the tube wall of foam maker 8, on air inlet pipe 10, order is equipped with non retern valve 9, suction press table 13 and air inlet pipe valve 14, foam maker 8 connects air compressor 11 by air inlet pipe 12, and air compressor 11 also can be changed to the nitrogen machine of annotating.Foam maker 8 ports of export and slip casting go out pipe 16 and link, and slip casting goes out on pipe 16 port of export flow valve 12 is installed.Going out pipe 16 by slip casting after static mixing agitator 7 mixes mix slurry discharges.
In Fig. 2, the static mixing agitator 7 of the present embodiment comprises agitator cylindrical shell 7-1, agitator central axis 7-2, intercepts lengthy motion picture 7-3, intercepts short-movie 7-4 and positioning sleeve 7-5.Agitator central axis 7-2 is arranged in static mixing agitator 7 along agitator cylindrical shell 7-1 axis, the upper interval of agitator central axis 7-2 is equipped with multi-disc and intercepts lengthy motion picture 7-3 and intercept short-movie 7-4, a slice intercepts lengthy motion picture 7-3 and a slice obstruct short-movie 7-4 alternately is arranged on agitator central axis 7-2, the obstruct lengthy motion picture 7-3 of the present embodiment and obstruct short-movie 7-4 are circular piece, the diameter that intercepts lengthy motion picture 7-3 equates with agitator cylindrical shell 7-1 internal diameter, the diameter that intercepts short-movie 7-4 is less than the internal diameter of agitator cylindrical shell 7-1, as preferred scheme, intercept lengthy motion picture 7-3 and intercept between short-movie 7-4 and be provided with the positioning sleeve 7-5 be sleeved on agitator central axis 7-2, positioning sleeve 7-5 maintains fixing distance for making to intercept lengthy motion picture 7-3 and intercept between short-movie 7-4, make to intercept lengthy motion picture 7-3 and intercept short-movie 7-4 and equidistantly be arranged on agitator central axis 7-2, easy for installation.In addition, intercept lengthy motion picture 7-3 with intercept short-movie 7-4 also can be equidistantly directly welded and installed on blender axis 4, or equidistantly be provided for installing obstruct lengthy motion picture 7-3 and the draw-in groove that intercepts short-movie 7-4 on blender axis 4, intercept lengthy motion picture 7-3 and be arranged in draw-in groove with obstruct short-movie 7-4.Intercept on lengthy motion picture 7-3 and be processed with opening a, the a slice that is arranged on agitator central axis 7-2 intercepts opening a and the upper opening a mutual dislocation layout of adjacent a slice obstruct lengthy motion picture 7-3 on lengthy motion picture 7-3, the center of circle and adjacent a slice of being the upper opening a of a slice obstruct lengthy motion picture 7-3 intercept the center of circle of the upper opening a of lengthy motion picture 7-3 not on same straight line, preferred scheme is, the angle that line between the upper opening a center of circle of a slice obstruct lengthy motion picture 7-3 and agitator central axis 7-2 axle center and adjacent a slice intercept between the line between the upper opening a center of circle of lengthy motion picture 7-3 and agitator central axis 7-2 axle center is 180 °, two opening a that intercept on lengthy motion picture 5-3 are symmetrical arranged with respect to agitator central axis 7-2.Because the diameter that intercepts lengthy motion picture 7-3 equates with the internal diameter of agitator cylindrical shell 7-1, when obstruct lengthy motion picture 7-3 is installed in agitator cylindrical shell 7-1, mix slurry can only be passed through by the opening a from intercepting lengthy motion picture 7-3, because the diameter that intercepts short-movie 7-4 is less than the internal diameter of agitator cylindrical shell 7-1, mix slurry continues to circulate with the space between agitator cylindrical shell 7-1 inwall from intercepting short-movie 7-4 after flowing through and intercepting lengthy motion picture 7-3.Static mixing agitator 7 of the present invention makes mix slurry flow into from the opening a that intercepts lengthy motion picture 7-3, through intercepting the Clearance Flow between short-movie 7-4 and agitator cylindrical shell 7-1 inwall, mix slurry is mixed along S shape channel flow in agitator cylindrical shell 7-1, makes mix slurry fully be mixed.
During work, regulate the slurry amount size that arrival end flow valve 2 is controlled in slip casting inlet pipe 1, the slurry stream prepared in grouting pipeline is after filter 3, remove impurity and large solid particle, enter static mixing agitator 7 and foam maker 8, open air inlet pipe valve 14, open air compressor 11 and be pressed into compressed air or nitrogen by air inlet pipe 10 toward foam maker 8 in, make slurries foaming formation take the gas-liquid-solid three-phase froth that air or nitrogen is gas phase.
The present invention is applicable under coal mine put out fast and the high-efficiency prevention and control Conflagration Caused by Coal Self-ignition.Adopt strainer, static mixing agitator and foam maker are linked in sequence, air inlet pipe is set on foam maker, the air that can produce with air compressor machine is as gas phase, also can prepare three-phase froth as gas phase with nitrogen, improve the coefficient of foaming of three-phase froth, thereby make the cost decrease, simultaneously strainer can effectively be removed impurity in slurries and large solid particle, the pressure meter arranged can clearly show the pressure in each pipeline, non retern valve can be avoided coagulating in compressed air line due to the little slurries that make of pressure of gas, make the present invention simple in structure, can compressed air or nitrogen be gas phase, it is easy to use, effective, the volume that takes up room is little, there is in the art practicality widely.
Certainly, above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit, although with reference to above-described embodiment, the present invention is had been described in detail, those of ordinary skill in the field are to be understood that, still can modify or be equal to replacement the specific embodiment of the present invention, and do not break away from any modification of spirit and scope of the invention or be equal to replacement, it all should be encompassed among claim scope of the present invention.
Claims (4)
1. for the foam preparation facilities of preventing and extinguishing fire of coal mine, comprising:
Slip casting inlet pipe (1);
Strainer (3) with described slip casting inlet pipe (1) port of export is connected, be equipped with screen pack (4) in strainer (3);
The blowdown linked with described strainer (3) goes out pipe (5);
The static mixing agitator (7) be connected with described strainer (3) port of export;
The foam maker (8) be connected with described static mixing agitator (7) port of export;
With the air inlet pipe (10) that described foam maker (8) links, the upper order of described air inlet pipe (10) is equipped with non retern valve (9), suction press table (13) and air inlet pipe valve (14);
The air compressor (11) linked by air inlet pipe (10) and foam maker (8) or notes nitrogen machine;
The slip casting be connected with described foam maker (8) port of export goes out pipe (16);
Described static mixing agitator (7) comprising: agitator cylindrical shell (7-1);
Be installed on the agitator central axis (7-2) in described agitator cylindrical shell (7-1);
It is characterized in that, described agitator cylindrical shell (7-1) is the integral type hollow cylinder, the upper alternately interval of described agitator central axis (7-2) is equipped with and intercepts lengthy motion picture (7-3) and intercept short-movie (7-4), described obstruct lengthy motion picture (7-3) and described obstruct short-movie (7-4) are arranged in described agitator cylindrical shell (7-1) by the agitator central axis, and described obstruct lengthy motion picture (7-3) and described obstruct short-movie (7-4) and described agitator cylindrical shell (7-1) are split-type structural;
Opening (a) is set on described obstruct lengthy motion picture (7-3), the diameter of described obstruct lengthy motion picture (7-3) is greater than the diameter of described obstruct short-movie (7-4), the diameter of described obstruct lengthy motion picture (7-3) equates with the internal diameter of described agitator cylindrical shell (7-1), a slice is set between adjacent two obstruct lengthy motion pictures (7-3) and intercepts short-movie (7-4), between the radially outward edge of described obstruct short-movie (7-4) and described agitator cylindrical shell (7-1) inwall, there is space.
2. the preparation facilities of the foam for preventing and extinguishing fire of coal mine according to claim 1, is characterized in that: between described obstruct lengthy motion picture (7-3) and obstruct short-movie (7-4), be provided with positioning sleeve (7-5).
3. the preparation facilities of the foam for preventing and extinguishing fire of coal mine according to claim 1 is characterized in that: a slice that is arranged on agitator central axis (7-2) intercepts opening (a) on lengthy motion picture (7-3) and intercepts upper opening (a) mutual dislocation of lengthy motion picture (7-3) with adjacent a slice and arrange.
4. the preparation facilities of the foam for preventing and extinguishing fire of coal mine according to claim 3 is characterized in that: described a slice intercepts between lengthy motion picture (7-3) opening (a) center of circle and agitator central axis (7-2) axle center line and adjacent a slice and intercepts lengthy motion picture (7-3) to go up the angle between line between opening (a) center of circle and agitator central axis (7-2) axle center be 180 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110068506.2A CN102182497B (en) | 2011-03-21 | 2011-03-21 | Foam preparation device for preventing and extinguishing coal mine fire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110068506.2A CN102182497B (en) | 2011-03-21 | 2011-03-21 | Foam preparation device for preventing and extinguishing coal mine fire |
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| Publication Number | Publication Date |
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| CN102182497A CN102182497A (en) | 2011-09-14 |
| CN102182497B true CN102182497B (en) | 2014-01-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201110068506.2A Active CN102182497B (en) | 2011-03-21 | 2011-03-21 | Foam preparation device for preventing and extinguishing coal mine fire |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103111215A (en) * | 2013-02-25 | 2013-05-22 | 枣庄矿业（集团）有限责任公司柴里煤矿 | Fire preventing and extinguishing foam generator |
| CN103252181A (en) * | 2013-05-27 | 2013-08-21 | 哈尔滨博华科技有限公司 | Rotary low-shear static mixer |
| CN103599607B (en) * | 2013-10-22 | 2016-02-24 | 中国矿业大学 | A kind of cured foam fluid generating device for preventing and extinguishing fire of coal mine |
| CN105525940A (en) * | 2016-01-18 | 2016-04-27 | 朱红青 | Automatic-control rotational traction type nitrogen injection fire preventing and extinguishing device |
| CN114542162B (en) * | 2022-01-17 | 2023-04-25 | 中国矿业大学 | Multi-temperature-section microcapsule material for preventing and treating spontaneous combustion of coal and preparation method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| GB1188516A (en) * | 1966-07-07 | 1970-04-15 | Baxenden Chemical Company Ltd | Mixing Device |
| CN87201156U (en) * | 1987-03-28 | 1987-12-26 | 中国石油化工总公司上海石油化工总厂 | Static mixer with removable mixing elements |
| CN101056697B (en) * | 2004-10-15 | 2011-10-26 | 药物混合系统股份公司 | Static mixer |
| CN100429380C (en) * | 2005-10-27 | 2008-10-29 | 中国矿业大学 | Three-phase foam preparing system for preventing coal self-ignition |
| JP2007330958A (en) * | 2006-06-16 | 2007-12-27 | Nakashin Denki:Kk | Gas/liquid mixer |
| EP2243610A1 (en) * | 2009-04-20 | 2010-10-27 | Nederlandse Organisatie voor toegepast -natuurwetenschappelijk onderzoek TNO | Method and apparatus for low shear mixing of shear sensitive materials |
| CN202015435U (en) * | 2011-03-21 | 2011-10-26 | 西安西科煤矿安全通风防灭火研究所有限公司 | Anti-fire extinction foam preparation device used for mines |
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