CN102182497A - 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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- CN102182497A CN102182497A CN2011100685062A CN201110068506A CN102182497A CN 102182497 A CN102182497 A CN 102182497A CN 2011100685062 A CN2011100685062 A CN 2011100685062A CN 201110068506 A CN201110068506 A CN 201110068506A CN 102182497 A CN102182497 A CN 102182497A
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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 device, particularly a kind of foam preparation device that is used under coal mine, putting out fast and preventing Conflagration Caused by Coal Self-ignition.
Background technology
Spontaneous combustionof coal is one of main natural calamity of China's mine, in China state-owned emphasis colliery, the fire that Conflagration Caused by Coal Self-ignition causes accounts for 90% of mine fire sum, the Xinjiang of China, Ningxia, 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 above 20,000,000,000 yuan, and the coalfield fire also causes large-area vegetation deterioration, make the soil desertification, mine for spontaneous combustionof coal and the coexistence of 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, has adopted gassiness (nitrogen or air), solid, liquid three-phase froth to prevent and treat spontaneous combustionof coal in recent years, has obtained effect preferably.But because the particular surroundings and the condition in colliery; contain impurity or big solid particle in the mix slurry; it is not good that existing a kind of foam preparation device that is used for preventing and extinguishing fire of coal mine usually mixes mixing effect; and the plugging phenomenon takes place easily; cause and to form three-phase froth continuously; because the defective of above two conditions, three-phase froth is restricted in the promoting the use of of mine.At this present situation, be badly in need of developing a kind of a kind of foam preparation device that is used for preventing and extinguishing fire of coal mine that is used under coal mine, putting out fast and preventing Conflagration Caused by Coal Self-ignition.
Summary of the invention
The purpose of this invention is to provide a kind of reasonable in design, simple in structure, foam preparation device that is used for preventing and extinguishing fire of coal mine that foaming effect is good.
To achieve these goals, the present invention takes following technical solution:
Be used for the foam preparation device of preventing and extinguishing fire of coal mine, comprise: the slip casting inlet pipe; Strainer with the slip casting inlet pipe port of export links to each other is equipped with screen pack in the strainer; The blowdown that links with strainer goes out pipe; The static mixing agitator that links to each other with the filter outlet end; The foam maker that links to each other with the static mixing agitator port of export; Be arranged at the air inlet pipe on the foam maker barrel, order is equipped with non retern valve, suction press table and air inlet pipe valve on the air inlet pipe; The air compressor that links by air inlet pipe and foam maker or annotate the nitrogen machine; The slip casting that links to each other 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 the lengthy motion picture opening is set, and the diameter that intercepts lengthy motion picture is greater than the diameter that intercepts short-movie.
Preferably, be provided with positioning sleeve between obstruct lengthy motion picture and the obstruct short-movie.
Preferably, be installed in the opening that a slice of agitator central axis intercepts on the lengthy motion picture and intercept opening mutual dislocation layout on the lengthy motion picture with adjacent a slice.
Preferably, a slice intercepts on the lengthy motion picture between the opening center of circle and agitator central axis axle center on the line and adjacent a slice obstruct lengthy motion picture that the angle between the line is 180 ° between the opening center of circle and agitator central axis axle center.
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 the agitator cylinder inboard wall; mix slurry is mixed along S shape channel flow in the agitator cylindrical shell; make mix slurry fully be mixed; simultaneously compared with prior art; only need the blender axis that stirring vane has been installed packed into and get final product in the blender; 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 that takes place; compact conformation is reasonable, is convenient to safeguard, is applicable to and puts out fast under the coal mine and the high-efficiency prevention and control Conflagration Caused by Coal Self-ignition.
Description of drawings
Fig. 1 is the structural representation of one embodiment of the invention;
Fig. 2 is the structural representation of static mixing agitator of the present invention.
The specific embodiment
As shown in Figure 1, the foam preparation device that is used 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 the slip casting inlet pipe 1, mix slurry is from slip casting inlet pipe 1 inflow filter 3, screen pack 4 is installed in the strainer 3, strainer 3 bottoms are provided with blowdown and go out pipe 5, blowdown goes out on the pipe 5 blowoff valve 15 is installed, strainer 3 ports of export are equipped with pressure meter 6, pressure meter 6 is used to detect strainer 3 internal pressure strainers 3 and links by flange and threaded fastener and static mixing agitator 7, static mixing agitator 7 of the present invention does not need Motor Drive, mix slurry after process filter 3 filters enters in the static mixing agitator 7 and mixes under the rotation circulation immixture of fluid self, obtains the good mixing 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, order is equipped with non retern valve 9, suction press table 13 and air inlet pipe valve 14 on the air inlet pipe 10, 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 the pipe 16 port of export flow valve 12 is installed.Static mixing agitator 7 mixes the back with mix slurry and goes out pipe 16 discharges by slip casting.
In Fig. 2, the static mixing agitator 7 of 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 installed in the static mixing agitator 7 along agitator cylindrical shell 7-1 axis, agitator central axis 7-2 goes up and multi-disc obstruct lengthy motion picture 7-3 is installed at interval and intercepts short-movie 7-4, a slice intercepts lengthy motion picture 7-3 and a slice obstruct short-movie 7-4 alternately is installed on the agitator central axis 7-2, the obstruct lengthy motion picture 7-3 of 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, intercept the internal diameter of the diameter of short-movie 7-4 less than agitator cylindrical shell 7-1, as preferred scheme, intercept lengthy motion picture 7-3 and intercept between the short-movie 7-4 and be provided with the positioning sleeve 7-5 that is sleeved on the agitator central axis 7-2, positioning sleeve 7-5 is used for the feasible lengthy motion picture 7-3 of obstruct and intercepts between the short-movie 7-4 maintaining fixing distance, make that intercepting lengthy motion picture 7-3 equidistantly is installed on the agitator central axis 7-2 with intercepting short-movie 7-4, 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 on blender axis 4, equidistantly be provided for installing obstruct lengthy motion picture 7-3 and the draw-in groove that intercepts short-movie 7-4, intercept lengthy motion picture 7-3 and be installed in the draw-in groove with obstruct short-movie 7-4.Intercept on the lengthy motion picture 7-3 and be processed with opening a, the a slice that is installed in agitator central axis 7-2 intercepts opening a on the lengthy motion picture 7-3 and intercepts lengthy motion picture 7-3 with adjacent a slice and go up opening a mutual dislocation layout, be that upward the center of circle and the adjacent a slice obstruct lengthy motion picture 7-3 of opening a go up the center of circle of opening a not on same straight line to a slice obstruct lengthy motion picture 7-3, preferred scheme is, a slice intercepts lengthy motion picture 7-3 and goes up line and adjacent a slice between the opening a center of circle and agitator central axis 7-2 axle center to intercept the angle that lengthy motion picture 7-3 goes up between the line between the opening a center of circle and agitator central axis 7-2 axle center be 180 °, and promptly the opening a on two obstruct lengthy motion picture 5-3 are symmetrical arranged with respect to agitator central axis 7-2.Because intercepting the diameter of 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 the agitator cylindrical shell 7-1, mix slurry can only be passed through from the opening a that intercepts on the lengthy motion picture 7-3, owing to intercept the internal diameter of the diameter of short-movie 7-4 less than agitator cylindrical shell 7-1, mix slurry continues circulation from the space that intercepts between short-movie 7-4 and the agitator cylindrical shell 7-1 inwall 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 the 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 the slip casting inlet pipe 1, the slurry stream for preparing in the grouting pipeline is through behind the filter 3, remove impurity and big 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 in foam maker 8, it is the gas-liquid-solid three-phase froth of gas phase that the slurries foaming is formed with air or nitrogen.
The present invention is applicable to and puts out fast under the coal mine 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 be with nitrogen as the vapor phase production three-phase froth, improve the coefficient of foaming of three-phase froth, thereby cost is reduced significantly, simultaneously strainer can effectively be removed impurity in the slurries and big solid particle, the pressure meter that is provided with can clearly show the pressure in each pipeline, non retern valve can be avoided coagulating in compressed air line owing 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, and is effective, the volume that takes up room is little, has practicality widely in the present technique field.
Certainly, above embodiment is only in order to illustrate that technical scheme of the present invention is not intended to limit, although the present invention is had been described in detail with reference to the foregoing description, those of ordinary skill in the field are to be understood that, still can make amendment 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 the claim scope of the present invention.
Claims (5)
1. be used for the foam preparation device of preventing and extinguishing fire of coal mine, comprise:
Slip casting inlet pipe (1);
Strainer (3) with described slip casting inlet pipe (1) port of export links to each other is equipped with screen pack (4) in the strainer (3);
The blowdown that links with described strainer (3) goes out pipe (5);
The static mixing agitator (7) that links to each other with described strainer (3) port of export;
The foam maker (8) that links to each other with described static mixing agitator (7) port of export;
With the air inlet pipe (10) that described foam maker (8) links, described air inlet pipe (10) goes up order non retern valve (9), suction press table (13) and air inlet pipe valve (14) is installed;
The air compressor (11) that links by air inlet pipe (10) and foam maker (8) or annotate the nitrogen machine;
The slip casting that links to each other with described foam maker (8) port of export goes out pipe (16);
It is characterized in that described static mixing agitator (7) comprising:
Agitator cylindrical shell (7-1);
Be installed on the agitator central axis (7-2) in the described agitator cylindrical shell (7-1);
Alternate intervals is installed on the obstruct lengthy motion picture (7-3) on the described agitator central axis (7-2) and intercepts short-movie (7-4), opening (a) is set on the described obstruct lengthy motion picture (7-3), and the diameter of described obstruct lengthy motion picture (7-3) is greater than the diameter of described obstruct short-movie (7-4).
2. the foam preparation device that is used for preventing and extinguishing fire of coal mine according to claim 1 is characterized in that: be provided with positioning sleeve (7-5) between described obstruct lengthy motion picture (7-3) and the obstruct short-movie (7-4).
3. the foam preparation device that is used for preventing and extinguishing fire of coal mine according to claim 1 is characterized in that: a slice that is installed in agitator central axis (7-2) intercepts opening (a) and adjacent a slice on the lengthy motion picture (7-3) and intercepts lengthy motion picture (7-3) and go up opening (a) mutual dislocation and arrange.
4. the foam preparation device that is used for preventing and extinguishing fire of coal mine according to claim 3 is characterized in that: described a slice intercepts lengthy motion picture (7-3) and goes up line and adjacent a slice between opening (a) center of circle and agitator central axis (7-2) axle center and intercept on the lengthy motion picture (7-3) that the angle between the line is 180 ° between opening (a) center of circle and agitator central axis (7-2) axle center.
5. the foam preparation device that is used for preventing and extinguishing fire of coal mine according to claim 1 is characterized in that: the diameter of described obstruct lengthy motion picture (7-3) equates with the internal diameter of described agitator cylindrical shell (7-1).
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 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102182497A true CN102182497A (en) | 2011-09-14 |
| CN102182497B CN102182497B (en) | 2014-01-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| 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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| CN (1) | CN102182497B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| WO2015058561A1 (en) * | 2013-10-22 | 2015-04-30 | 中国矿业大学 | Curing foam fluid generation device for preventing and extinguishing fire in 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 |
| CN114542162A (en) * | 2022-01-17 | 2022-05-27 | 中国矿业大学 | Multi-temperature-section microcapsule material for preventing coal spontaneous combustion and preparation method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| WO2015058561A1 (en) * | 2013-10-22 | 2015-04-30 | 中国矿业大学 | Curing foam fluid generation device for preventing and extinguishing fire in 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 |
| CN114542162A (en) * | 2022-01-17 | 2022-05-27 | 中国矿业大学 | Multi-temperature-section microcapsule material for preventing coal spontaneous combustion and preparation method thereof |
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|---|---|
| CN102182497B (en) | 2014-01-08 |
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