CN101251025B - Coal mine down-hole foam dedusting system - Google Patents
Coal mine down-hole foam dedusting system Download PDFInfo
- Publication number
- CN101251025B CN101251025B CN2008100235783A CN200810023578A CN101251025B CN 101251025 B CN101251025 B CN 101251025B CN 2008100235783 A CN2008100235783 A CN 2008100235783A CN 200810023578 A CN200810023578 A CN 200810023578A CN 101251025 B CN101251025 B CN 101251025B
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- foam
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- compressed air
- pipeline
- inlet pipe
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Links
- 239000006260 foam Substances 0.000 title claims abstract description 101
- 239000003245 coal Substances 0.000 title claims abstract description 18
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 25
- 239000004604 Blowing Agent Substances 0.000 claims description 16
- 239000012530 fluid Substances 0.000 claims description 11
- 239000000428 dust Substances 0.000 abstract description 22
- 238000005065 mining Methods 0.000 abstract description 5
- 239000007921 spray Substances 0.000 abstract description 5
- 239000007788 liquid Substances 0.000 abstract description 4
- 239000004088 foaming agent Substances 0.000 abstract 3
- 230000000694 effects Effects 0.000 description 3
- 238000005187 foaming Methods 0.000 description 3
- 238000005553 drilling Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 206010035653 pneumoconiosis Diseases 0.000 description 2
- 239000011435 rock Substances 0.000 description 2
- 241000009298 Trigla lyra Species 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000004630 mental health Effects 0.000 description 1
- 239000000047 product Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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Abstract
The invention relates to a foam dust removal system used for coal mine underground mining, mainly comprising a fixed quantity addition pump, a foaming agent reservoir, a compressed air pipeline, a clean water pipeline, a foam generator, a foam spray head and so on. By utilization of the prior water pipe in a dust removal place, foaming agents are added into the water pipe by the small-flow fixed quantity addition pump; mixed liquid and compressed air which contain the foaming agents pass through the foam generator simultaneously, and a great amount of foams are generated, conveyed to the foam spray head through a hose, ejected from the foam spray head in the form of an umbrella and cover dust producing points. The invention is particularly suitable for the coal mine underground mining work surface, traveling belt transfer points, a tunnel excavated section or other dust producing points with small space and effectively controls the dust producing sources. The foam dust removal system used has the advantages of simple structure, convenient operation, capability of operating continuously, high dust removal efficiency, no electric elements and safety and reliability.
Description
Technical field
The present invention relates to a kind of foam dedusting system that is used under the coal mine, be particularly useful for the improvement of narrow and small place, space dust disasters such as down-hole mining work plane.
Background technology
In progress of coal mining, can produce a large amount of dust, and digging operation is the master operation of producing dirt, its dust-producing amount accounts for more than 80% of total dust, the physical and mental health of serious harm coal miner.Present about 260,000 people of pneumoconiosis patient of China's coal-mine industry, and with annual 5000 people's speed increase, annual nearly 3000 people die from pneumoconiosis, have brought great misery for patient and family thereof.In order to prevent and treat dust, generally adopt measures such as spray for dust suppression and coal-bed flooding under the coal mine, but the dust disaster of all failing because efficiency of dust collection is low well to prevent and treat.Abroad just begin to concentrate as far back as the seventies in last century and studied foam dust-removing, but dust collection method mainly is foam maker to be installed in produce near the dirt pits, relies on a large amount of foams with distinguished and admirable motion covering dirt source, as the Makeni of the former Soviet Union.The shortcoming of this method has two aspects, be that a large amount of foams appear at the workplace on the one hand, influence workman's operation, the foam maker volume can not be installed near the pick of coal-winning machine and fully-mechanized digging machine too greatly flexibly on the other hand, so can not effectively control the main product dirt root of the digging operation under the coal mine.Because above two aspects and other, foam dust-removing technology is not used widely under the coal mine yet at home.The patent No. is that CN87106798A discloses a kind of rock drilling bubble dust collector, it mainly is made of foaming premixed liquid holding vessel, compressed air line and froth nozzle, though this device is better dust removal effect when the rock drilling bore operation, but it can not realize continuous operation, and volume is also bigger, and the inner foam screen of froth nozzle adopts plane structure, be unfavorable for the expanding foam solution film forming, foaming effect is bad, is not suitable for the dedusting of working continuously of getting working face, and range of application is little.
Summary of the invention
The objective of the invention is to overcome the weak point in the prior art, provide a kind of simple in structure, volume is little, and dependable performance can continuous operation, better dust removal effect be used for foam dedusting system under the coal mine.
The present invention is used for the foam dedusting system under the coal mine, comprise the blowing agent fluid reservoir, foam maker and foam nozzle, described foam maker links to each other with water inlet pipe with compressed air hose respectively by pipeline, the pipeline that links to each other with compressed air hose is provided with control valve, and is provided with control valve, strainer and flap valve successively on the mouth of pipe that water inlet pipe links to each other; Respectively and be provided with quantitative interpolation pump between compressed air hose that links to each other with foam maker and the water inlet pipe, the air inlet pipe of quantitatively adding pump links to each other with compressed air hose by pipeline, and its pipeline is provided with the control valve of control flow; The drain pipe that quantitatively adds pump links to each other with the feed tube of foam maker, and its pipeline is provided with the control valve and the flap valve of control flow; Quantitatively add pump and link to each other with the blowing agent fluid reservoir by feed tube, drain pipe links to each other with water inlet pipe; The outlet of foam maker connects a foam dispenser by sebific duct.
Described foam maker comprises the housing that is combined as a whole by cylindrical shell and cone, be provided with the foam screen that combines by cone and arc surface in the housing, the bottom of housing is provided with the feed tube that links to each other with water inlet pipe, its sidewall is provided with the air inlet that links to each other with compressed air hose, and the water conservancy diversion spiral nozzle is housed on the feed tube; Having several diameters on the described foam screen is 2～3mm aperture; Described foam dispenser is provided with a plurality of foam nozzles.
The present invention is used for the foam dedusting system under the coal mine, is applicable to the improvement of narrow and small place, space dust disasters such as down-hole mining work plane, or efficiently administers the improvement of the dust disaster of getting working face and travelling belt transfer point under the coal mine.Native system utilizes a part of current in existing air line in down-hole and the inlet pipeline, the additive that adds proper proportion by quantitative interpolation pump in the current, foam by foam maker again, transfer to the place to use through pipeline, large stretch of foam is cut into small pieces, become the umbrella ejection by foam nozzle, cover and produce dirt pits, the foam of ejection evenly disperses, and can not cause foam to pile up, and does not influence workman's operation.System links to each other with the down-hole water pipe, and blowing agent adds immediately, and liquid is added in the preparation of need not stopping over, and can realize working continuously.Expanding foam solution film forming efficiency height in the foam maker, foam nozzle can be directly installed near the pick of coal-winning machine or fully-mechanized digging machine cutting-cylinder, directly covers and produces dirt pits, and through field trial, efficiency of dust collection can reach more than 95%.Native system is flexible for installation, only some foam nozzles need be installed in the place of work plane small space, and volume is little, and is flexible, do not need special additionaling power, simple to operate, uses reliably, has practicality widely.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is a foam maker structure sectional view of the present invention.
Among the figure: quantitatively add pump-1, blowing agent fluid reservoir-2, addition funnel-3, flap valve-4,17, control valve-5,7,8,10 quantitatively adds pump drain pipe-6, quantitatively adds pump feed tube-9, compressed air hose-11, water inlet pipe-12, foam maker-13, foam nozzle-14, foam dispenser-15, strainer-16, sebific duct-18, foam maker foam outlet-19, air inlet pipe-20, feed tube-21, air inlet-22, deflector nozzle-23, foam screen-24.
The specific embodiment
Below in conjunction with accompanying drawing one embodiment of the present of invention are further described:
Shown in Figure 1, it mainly is made up of parts such as the quantitative interpolation pump 1 of low discharge, blowing agent fluid reservoir 2, compressed air line 11, inlet pipeline 12, foam maker 13, foam nozzles 14.Wherein foam maker 13 links to each other with water inlet pipe 12 with compressed air hose 11 respectively by pipeline, and the pipeline that links to each other with compressed air hose 11 is provided with control valve 10, and is provided with control valve 8, strainer 16 and flap valve 17 successively on the mouth of pipe that water inlet pipe 12 links to each other; Respectively and be connected with quantitative interpolation pump 1 between compressed air hose 11 that links to each other with foam maker 13 and the water inlet pipe 12, the air inlet pipe 20 of quantitatively adding pump 1 links to each other with compressed air hose 11 by pipeline, and its pipeline is provided with the control valve 7 of control flow; The drain pipe 6 that quantitatively adds pump 1 links to each other with the feed tube of foam maker 13, and its pipeline is provided with the control valve 5 and the flap valve 4 of control flow; Quantitatively add pump 1 and link to each other with blowing agent fluid reservoir 2 by feed tube 9, the funnel 3 that adds blowing agent is housed on the blowing agent fluid reservoir 2, the drain pipe 6 that quantitatively adds pump 1 links to each other with water inlet pipe 12; The outlet 19 of foam maker 13 connects a foam dispenser 15 by sebific duct 18, and foam dispenser 15 is provided with a plurality of foam nozzles 14, realizes the function that foam sprays jointly.
Shown in Figure 2, be the section of structure of foam maker 13, it comprises the housing that is combined as a whole by cylindrical shell and cone, be provided with the foam screen 24 that combines by cone and arc surface in the housing, have several apertures on the foam screen 24, the diameter in hole is 2～3mm, and material is the thick stainless steel of 2mm.The bottom of housing is provided with the feed tube 21 that links to each other with water inlet pipe 12, and its sidewall is provided with the air inlet 22 that links to each other with compressed air hose 11, and helical form deflector nozzle 23 is housed on the feed tube 21, and the helical groove and the degree of depth of deflector nozzle 23 are 8mm.
Operating principle: the compressed air hose 11 that links to each other with pressure ventilation pipe under the coal mine is provided with a threeway, air-flow is divided into two-way, one road air-flow enters foam maker 13 through control valve 10, another road air-flow enters the air inlet pipe 20 of quantitative interpolation pump through control valve 7, compressed air is as the power that quantitatively adds pump 1, drive and quantitatively add pump 1, by being located at the interpolation pump feed tube 9 in the blowing agent fluid reservoir 2, blowing agent is extracted out, drain pipe 6 by quantitative interpolation pump 1 pump injects the inlet channel 12 that links to each other with foam maker 13 again, and the control valve 5 of adjusting flow and the flap valve 4 of anti-backflow are housed on the drain pipe 6.On the pipeline 12 snap joint is housed, after connecting with the dustproof water pipe under the coal mine, flow by water in control valve 8 control pipers, current are removed impurity through filter 16, with enter foam maker 13 after the blowing agent that injects mixes, in foam maker 13, the spiral stream guidance shower nozzle 23 of the mixing material that contains blowing agent by foam maker 13 inside is the open circles taper and is sprayed onto on the foam screen 24, the air that is entered by air inlet 22 is advertised the liquid film on the foam screen 24 simultaneously, make it produce a large amount of foams, foam is discharged by foam maker foam outlet 19, delivers to foam dispenser 15 through rubber hose 18, by a plurality of foam nozzles 14 foam is umbrella and ejects, cover the dirt source.
Whole system can be installed separately flexibly, wherein blowing agent fluid reservoir 2, quantitatively add parts such as valve on pump 1, compressed air line 11, clear water pipeline 12 and foam maker 13 and the pipeline and strainer and can select the infield according to actual conditions, perhaps be installed separately flexibly according to condition, the centre connects by sebific duct, foam dispenser 15 and a plurality of foam nozzle 14 can be installed in and produce near the dirt pits, also can be installed on multiple spot simultaneously, more i.e. foaming, the multiple spot dedusting gets final product by the sebific duct connection.For example when the application of driving face, blowing agent fluid reservoir 2, quantitatively add pump 1, foam maker 13 and pipeline fittings and can be installed in optional position in the tunnel, fully-mechanized digging machine rear portion, foam dispenser 15 and foam nozzle 14 then are installed near the pick of development machine, foam nozzle 14 is distributed in a left side, goes up, right three, foam is sprayed on all picks on the cutting-cylinder uniformly during work, covers to produce dirt pits.
Claims (2)
1. foam dedusting system that is used under the coal mine, comprise blowing agent fluid reservoir (2), foam maker (13) and foam nozzle (14), described foam maker (13) links to each other with water inlet pipe (12) with compressed air hose (11) respectively by pipeline, the pipeline that links to each other with compressed air hose (11) is provided with control valve (10), be provided with quantitative interpolation pump (1) respectively and between compressed air hose (11) that links to each other with foam maker (13) and the water inlet pipe (12), the air inlet pipe (20) of quantitatively adding pump (1) links to each other with compressed air hose (11) by pipeline, quantitatively adds pump (1) and links to each other with blowing agent fluid reservoir (2) by feed tube (9); Foam maker (13) comprises the housing that is combined as a whole by cylindrical shell and cone, the bottom of housing is provided with the feed tube (21) that links to each other with water inlet pipe (12), the sidewall of housing is provided with the air inlet (22) that links to each other with compressed air hose (11), and water conservancy diversion spiral nozzle (23) is housed on the feed tube (21); It is characterized in that: be provided with control valve (8), strainer (16) and flap valve (17) successively on described foam maker (13) and the mouth of pipe that water inlet pipe (12) links to each other; The pipeline that quantitatively adds pump (1) is provided with the control valve (7) of control flow; The drain pipe (6) that quantitatively adds pump (1) links to each other with water inlet pipe (12), and drain pipe (6) is provided with the control valve (5) and the flap valve (4) of control flow; The outlet (19) of foam maker (13) connects a foam dispenser (15) by sebific duct (18); Be provided with in the housing of described foam maker (13) by cone and arc surface and fasten the foam screen (24) that forms; Described foam dispenser (15) is provided with a plurality of foam nozzles (14).
2. the foam dedusting system that is used under the coal mine according to claim 1 is characterized in that: having several diameters on the described foam screen (24) is 2～3mm aperture.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100235783A CN101251025B (en) | 2008-04-08 | 2008-04-08 | Coal mine down-hole foam dedusting system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2008100235783A CN101251025B (en) | 2008-04-08 | 2008-04-08 | Coal mine down-hole foam dedusting system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101251025A CN101251025A (en) | 2008-08-27 |
| CN101251025B true CN101251025B (en) | 2011-03-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2008100235783A Expired - Fee Related CN101251025B (en) | 2008-04-08 | 2008-04-08 | Coal mine down-hole foam dedusting system |
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| Country | Link |
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| CN (1) | CN101251025B (en) |
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| CN102182492B (en) * | 2011-04-11 | 2014-03-05 | 西安西科煤矿安全通风防灭火研究所有限公司 | Underground dust-removing foam generator and foam dust-removing equipment |
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2008
- 2008-04-08 CN CN2008100235783A patent/CN101251025B/en not_active Expired - Fee Related
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| CN101251025A (en) | 2008-08-27 |
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