CN102182492A - Underground dust-removing foam generator and foam dust-removing equipment - Google Patents

Underground dust-removing foam generator and foam dust-removing equipment Download PDF

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Publication number
CN102182492A
CN102182492A CN2011100929160A CN201110092916A CN102182492A CN 102182492 A CN102182492 A CN 102182492A CN 2011100929160 A CN2011100929160 A CN 2011100929160A CN 201110092916 A CN201110092916 A CN 201110092916A CN 102182492 A CN102182492 A CN 102182492A
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China
Prior art keywords
flow
disturbing
foam
linear leaf
dust
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Granted
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CN2011100929160A
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Chinese (zh)
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CN102182492B (en
Inventor
杨小波
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XI'AN XIKE COAL MINE SAFETY VENTILATION FIRE-PREVENTION INSTITUTE Co Ltd
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XI'AN XIKE COAL MINE SAFETY VENTILATION FIRE-PREVENTION INSTITUTE Co Ltd
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Priority to CN201110092916.0A priority Critical patent/CN102182492B/en
Publication of CN102182492A publication Critical patent/CN102182492A/en
Application granted granted Critical
Publication of CN102182492B publication Critical patent/CN102182492B/en
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Abstract

The invention discloses an underground dust-removing foam generator and foam dust-removing equipment. The foam dust-removing equipment comprises a foaming agent liquid storing tank, a quantitative pump, an air compressor, a generator, a water inlet pipe and a foam spraying head, wherein the air compressor is communicated with the quantitative pump through an air inlet pipeline; the generator is communicated with the air compressor through an air inlet pipeline; the water inlet pipe is communicated with the inlet of the generator; a filter is arranged on the water inlet pipe; the quantitative pump is communicated with the water inlet pipe; and the foam spraying head is connected with the outlet of the generator through a pipeline; the generator comprises a barrel body, an inlet pipe, a Venturi tube, a turbulating barrel and an outlet pipe, wherein an air inlet pipe is arranged on the wall of the barrel body; the input pipe is arranged at the front end of the barrel body; the Venturi tube is arranged inside the barrel body; an air inlet hole is formed in the diffusive section of the back part of the Venturi tube; the central line of the air inlet pipe is tangent to the diffusive section of the Venturi tube; the turbulating barrel is arranged behind the barrel body; a turbulating central shaft is arranged in the turbulating barrel; a long turbulating sheet and a short turbulating sheet are arranged on the turbulating central shaft; and the output pipe is arranged at the back end of the turbulating barrel. The foam generator for the underground dust removal and the foam dust-removing equipment are compact in structure and reasonable in design.

Description

Dust removing down-hole is with foam maker and foam dust-removing equipment
Technical field
The present invention relates to a kind of foam dust-removing equipment, particularly a kind of foam dust-removing equipment that is used at narrow and small place, space dust hazard managements such as down-hole mining work planes.
Background technology
The per pass operation of coal mine operation all produces with a large amount of dust, and workman's operation meeting in this environment sucks a large amount of dust, serious harm workman's physical and mental health.About 260,000 people of pneumoconiosis patient of China's coal-mine industry, and annual speed increase with 5000 people at present have 3000 people to die from pneumoconiosis every year approximately.For the effectively preventing Mine Dust, generally adopt measures such as spray for dust suppression and coal-bed flooding under the coal mine, but because of efficiency of dust collection low.Foam dust-removing technology had appearred afterwards, foam dust-removing is generator to be installed in produce near the dirt pits, rely on a large amount of foams to cover the dirt source with wind flow, but there are following two aspect shortcomings in this method: the one, and a large amount of foams appear at the working site, influence workman's operation, the 2nd, generator is bulky, is difficult for being installed in flexibly near the coal-winning machine, can't effectively administer the main product dirt root of colliery down-hole mining operation.In order to address the above problem, the patent No. is 200810023578.3, name is called a kind of patent of invention that is used for the foam dedusting system under the coal mine and discloses a kind of foam dedusting system, and this system comprises blowing agent fluid reservoir, foaming tube, foam nozzle, air compressor, strainer, the foam dispenser that quantitatively adds pump and be provided with a plurality of foam nozzles.Quantitatively add pump blowing agent is extracted out from the blowing agent fluid reservoir, inject the foaming tube, air compressor is by pipeline and foaming tube UNICOM, and gas and blowing agent and water is mixed foaming in the foaming tube, by the foam nozzle ejection, covers the dirt source then.But this foaming tube adopts nozzle that expanding foam solution is sprayed onto on the foam screen, owing to often contain impurity in the mine water, causes spray nozzle clogging easily; What secondly use owing to foaming is compressed air, and stream pressure and speed are big, and foam screen also damages easily, influences foaming effect, needs frequent maintain and replace.
Summary of the invention
The purpose of this invention is to provide the foam maker that a kind of mining dust removing down-hole reasonable in design, simple in structure, that foaming effect is good is used.
Another purpose of the present invention provides a kind of reasonable in design, simple in structure, foam dust-removing equipment that foaming effect is good.
In order to realize above-mentioned first purpose, the present invention takes following technical solution:
Mining dust removing down-hole foam maker comprises: barrel is provided with the cylindrical shell of air inlet pipe; Be located at the input pipe of barrel front end; Be located at the Venturi tube in the cylindrical shell; Be arranged at the flow-disturbing tube behind the cylindrical shell; Be arranged at the efferent duct of flow-disturbing tube rear end; Venturi tube throat leading portion is provided with air inlet; In the flow-disturbing tube, be provided with flow-disturbing tube axis along its axis arranged, flow-disturbing linear leaf and flow-disturbing short blade alternately are installed on the flow-disturbing tube axis at interval, flow-disturbing linear leaf diameter is greater than flow-disturbing short blade diameter, the flow-disturbing linear leaf is provided with opening, and the opening mutual dislocation on the adjacent flow-disturbing linear leaf is arranged.
In order to realize above-mentioned second purpose, the present invention takes following technical solution:
Mining down-hole foam dust-removing equipment comprises: the blowing agent fluid reservoir; Quantitative interpolation pump by pipeline and blowing agent fluid reservoir UNICOM; By admission line and the air compressor that quantitatively adds pump UNICOM; Foam maker by admission line and air compressor UNICOM; With the water inlet pipe of foam maker inlet UNICOM, water inlet pipe is provided with strainer, quantitatively adds pump and water inlet pipe UNICOM; Export the foam nozzle that connects by pipeline with foam maker; This foam maker comprises: barrel is provided with the cylindrical shell of air inlet pipe; Be located at the input pipe of barrel front end; Be located at the Venturi tube in the cylindrical shell, Venturi tube rear portion diffuser is provided with air inlet, and the center line of air inlet is parallel with Venturi tube diffuser tangent line; Be arranged at the flow-disturbing tube behind the cylindrical shell, be provided with flow-disturbing tube axis in the flow-disturbing tube along its axis arranged, flow-disturbing linear leaf and flow-disturbing short blade alternately are installed on the flow-disturbing tube axis at interval, flow-disturbing linear leaf diameter is greater than flow-disturbing short blade diameter, the flow-disturbing linear leaf is provided with opening, and the opening mutual dislocation on the adjacent flow-disturbing linear leaf is arranged; Be arranged at the efferent duct of flow-disturbing tube rear end; Be located at the foaming section in the cylindrical shell, be filled with irregular column medium in the foaming section.
Preferably, be provided with positioning sleeve between described flow-disturbing linear leaf and the flow-disturbing short blade.
Preferably, on described a slice flow-disturbing linear leaf between the opening center of circle and flow-disturbing tube axis axle center on line and the adjacent a slice flow-disturbing linear leaf between the opening center of circle and flow-disturbing tube axis axle center the angle between line be 180 °.
Preferably, the diameter of described flow-disturbing linear leaf equates with the internal diameter of described cylindrical shell.
Preferably, be provided with the foaming section behind the described cylindrical shell inner venturi tube, be filled with irregular column medium in the described foaming section.
The present invention is provided with air inlet at Venturi tube throat leading portion, gases at high pressure spray in the blowing agent liquid after entering Venturi tube by air inlet, with blowing agent liquid mixed foaming, the foaming section of filling irregular column medium preferably is set in foam maker simultaneously, replace shower nozzle of the prior art and foam screen, can avoid shower nozzle easily to stop up and the flimsy phenomenon of foam screen, have simple in structure, reasonable in design, the advantage that foaming effect is good.
Description of drawings
Fig. 1 is the structural representation of one embodiment of the invention;
Fig. 2 is the structural representation of foam maker of the present invention;
Fig. 3 is the structural representation of another embodiment of the present invention.
Below in conjunction with accompanying drawing the specific embodiment of the present invention is described in further detail.
The specific embodiment
As shown in Figure 1, foam dust-removing equipment of the present invention comprises blowing agent fluid reservoir 1, the pipeline that quantitatively adds pump 2, air compressor 3, water inlet pipe 4, foam maker 5, foam nozzle 6, strainer 7 and play UNICOM's effect, is provided with flow control valve and flap valve (not shown) on pipeline as required.Wherein, blowing agent fluid reservoir 1 is equipped with blowing agent by pipeline and quantitative pump 2 UNICOMs that add in the blowing agent fluid reservoir 1, and the output quantity of blowing agent is by quantitative interpolation pump 2 controls in the blowing agent fluid reservoir 1.Air compressor 3 links with quantitative interpolation pump 2 and foam maker 5 respectively by admission line, three way cock is installed on admission line in the present embodiment, by three way cock the air-flow of admission line is divided into two branch roads, the air-flow of a branch road directly feeds foam maker 5, another branch road air-flow feeds and quantitatively adds in the pump 2, quantitatively add the outlet of pump 2 by pipeline and water inlet pipe 4 UNICOMs, the outlet of water inlet pipe 4 and foam maker 5 UNICOMs, strainer 7 is installed on the water inlet pipe 4, strainer 7 will filter from the liquid of water inlet pipe 4 inputs, and the blowing agent that is pumped by quantitative interpolation pump 2 mixes in the back input foam maker 5 with the liquid of being imported by water inlet pipe 4.The outlet of foam maker 5 is by pipeline and foam nozzle 6 UNICOMs, and the solution-air in the input foam maker 5 is mixed the back and produced foam, and foam outwards sprays by foam nozzle 6.
As Fig. 2, shown in Figure 3, be the structural representation of generator of the present invention.Foam maker 5 comprises cylindrical shell 5-1, flow-disturbing tube 5-2, Venturi tube 5-3, air inlet pipe 5-4, flow-disturbing linear leaf 5-5, flow-disturbing short blade 5-5 ', input pipe 5-6, efferent duct 5-7, flow-disturbing tube axis 5-9.For convenience of description, the arrival end of foam maker 5 is defined as before.
Input pipe 5-6 is arranged at the front end of cylindrical shell 5-1, blowing agent liquid enters the foam maker 5 from input pipe 5-6, Venturi tube 5-3 is provided with in the cylindrical shell 5-1 anterior by the mode of threaded fastener or welding, cylindrical shell 5-1 rear end connects with flow-disturbing tube 5-2 by threaded fastener, efferent duct 5-7 is arranged at flow-disturbing tube 5-2 rear end, and foam is exported from efferent duct 5-7.Cylindrical shell 5-1 barrel is provided with air inlet pipe 5-4, and the gases at high pressure that air compressor 3 produces enter the cylindrical shell 5-1 from air inlet pipe 5-4.Venturi tube 5-3 throat leading portion is provided with a plurality of air inlet a, air inlet a circumferentially is provided with uniformly at intervals along Venturi tube 5-3 throat leading portion, see that along airintake direction the angle between air inlet a center line and Venturi tube 5-3 tube wall is no more than 90 °, gases at high pressure spray into blowing agent inside after air inlet a enters Venturi tube 5-3, carry out gas-liquid mixed, because Venturi tube 5-3 throat leading portion is the convergent contour structure, back segment is the divergent contour structure, therefore to enter the pressure that is obstructed behind the Venturi tube 5-3 leading portion very big for gases at high pressure, when gas and blowing agent by after the Venturi tube 5-3 throat, because Venturi tube 5-3 throat back segment space is big than the space of throat's leading portion, gas pressure discharges rapidly, and gases at high pressure and blowing agent injection are gone out the generation foaming effect.Be provided with flow-disturbing tube axis 5-9 in the flow-disturbing tube 5-2 along its axis arranged, flow-disturbing tube axis 5-9 goes up multi-disc flow-disturbing linear leaf 5-5 and flow-disturbing short blade 5-5 ' is installed at interval, a slice flow-disturbing linear leaf 5-5 and a slice flow-disturbing short blade 5-5 ' alternately are installed on the flow-disturbing tube axis 5-9, the flow-disturbing linear leaf 5-5 of present embodiment and flow-disturbing short blade 5-5 ' are circular piece, the diameter of flow-disturbing linear leaf 5-5 equates with flow-disturbing tube 5-2 internal diameter, the diameter of flow-disturbing short blade 5-5 ' is less than the internal diameter of flow-disturbing tube 5-2, as preferred scheme, be provided with the positioning sleeve 5-10 that is sleeved on the flow-disturbing tube axis 5-9 between flow-disturbing linear leaf 5-5 and the flow-disturbing short blade 5-5 ', positioning sleeve 5-10 is used to make and maintains fixing distance between flow-disturbing linear leaf 5-5 and the flow-disturbing short blade 5-5 ', make flow-disturbing linear leaf 5-5 and flow-disturbing short blade 5-5 ' equidistantly be installed on the flow-disturbing tube axis 5-9, easy for installation.In addition, flow-disturbing linear leaf 5-5 and flow-disturbing short blade 5-5 ' also can be equidistantly directly welded and installed on flow-disturbing tube axis 5-9, or on flow-disturbing tube axis 5-9, equidistantly being provided for installing the draw-in groove of flow-disturbing linear leaf 5-5 and flow-disturbing short blade 5-5 ', flow-disturbing linear leaf 5-5 and flow-disturbing short blade 5-5 ' are installed in the draw-in groove.Be processed with opening b on the flow-disturbing linear leaf 5-5, being installed in opening b on a slice flow-disturbing linear leaf 5-5 of flow-disturbing tube axis 5-9 and adjacent a slice flow-disturbing linear leaf 5-5 goes up opening b mutual dislocation and arranges, be that upward the center of circle and the adjacent a slice flow-disturbing linear leaf 5-5 of opening b go up the center of circle of opening b not on same straight line to a slice flow-disturbing linear leaf 5-5, preferred scheme is, a slice flow-disturbing linear leaf 5-5 goes up that the angle between the line between the opening b center of circle and flow-disturbing tube axis 5-9 axle center is 180 ° on line and the adjacent a slice flow-disturbing linear leaf 5-5 between the opening b center of circle and flow-disturbing tube axis 5-9 axle center, and promptly the opening b on two flow-disturbing linear leaf 5-5 is symmetrical arranged with respect to flow-disturbing tube axis 5-9.Because the diameter of flow-disturbing linear leaf 5-5 equates with the internal diameter that streams a 5-2, when flow-disturbing linear leaf 5-5 is installed in the flow-disturbing tube 5-2, mix slurry can only be passed through from the opening a on the flow-disturbing linear leaf 5-5, because the diameter of flow-disturbing short blade 5-5 ' is less than the internal diameter of flow-disturbing tube 5-2, blowing agent liquid is flowed through and is continued to circulate from the space between flow-disturbing short blade 5-5 ' and the flow-disturbing tube 5-2 inwall behind the flow-disturbing linear leaf 5-5.Blowing agent liquid along S shape channel flow, makes mixing more abundant in flow-disturbing tube 5-2.
During work, air compressor 3 provides power for quantitatively adding pump 2, drive and quantitatively to add pump 2 blowing agent in the blowing agent fluid reservoir 1 is pumped in the water inlet pipe 4 with foam maker 5 UNICOMs, enter in the foam maker 5 via water inlet pipe 4, simultaneously, another branch road air-flow of air compressor 3 feeds the Venturi tube of foam maker 5 from admission line, gases at high pressure are blown into the blowing agent liquid internal from the air inlet of foam maker 5 Venturi tubes, carry out mixed foaming, the flow-disturbing section that enters foam maker 5 then mixes, final foam is discharged the back from foam maker 5 and is ejected by foam nozzle 6 by pipeline, covers the dirt source.
As shown in Figure 3, structural representation for the foaming tube of another embodiment of the present invention, the place that this embodiment is different with last embodiment is, foaming section 5-8 is installed in cylindrical shell 5-1 inner venturi tube 5-3 rear end, be filled with irregular column medium in the foaming section 5-8, gases at high pressure and blowing agent liquid spray to foaming section 5-8 through foaming section 5-8 post-foaming.Adopt the foaming section of filling irregular column medium, can increase the foam wall thickness, the ability that makes foam have better stability and bear pressure.
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 (10)

1. dust removing down-hole foam maker comprises:
Barrel is provided with the cylindrical shell (5-1) of air inlet pipe (5-4);
Be located at the input pipe (5-6) of described cylindrical shell (5-1) front end;
Be located at the Venturi tube (5-3) in the described cylindrical shell (5-1);
Be arranged at the flow-disturbing tube (5-2) behind the described cylindrical shell (5-1);
Be arranged at the efferent duct (5-7) of described flow-disturbing tube (5-2) rear end;
It is characterized in that:
Described Venturi tube (5-3) throat leading portion is provided with air inlet (a);
In described flow-disturbing tube (5-2), be provided with flow-disturbing tube axis (5-9) along its axis arranged, described flow-disturbing tube axis (5-9) is gone up flow-disturbing linear leaf (5-5) and flow-disturbing short blade (5-5 ') alternately is installed at interval, flow-disturbing linear leaf (5-5) diameter is greater than flow-disturbing short blade (5-5 ') diameter, described flow-disturbing linear leaf (5-5) is provided with opening (b), and opening (b) mutual dislocation on the adjacent flow-disturbing linear leaf (5-5) is arranged.
2. dust removing down-hole foam maker according to claim 1 is characterized in that: be provided with positioning sleeve (5-10) between described flow-disturbing linear leaf (5-5) and the flow-disturbing short blade (5-5 ').
3. dust removing down-hole foam maker according to claim 1 is characterized in that: described a slice flow-disturbing linear leaf (5-5) goes up between opening (b) center of circle and flow-disturbing tube axis (5-9) axle center on the line and adjacent a slice flow-disturbing linear leaf (5-5) that the angle between the line is 180 ° between opening (b) center of circle and flow-disturbing tube axis (5-9) axle center.
4. dust removing down-hole foam maker according to claim 1 is characterized in that: the diameter of described flow-disturbing linear leaf (5-5) equates with the internal diameter of described cylindrical shell (5-1).
5. dust removing down-hole foam maker according to claim 1 is characterized in that: be provided with foaming section (5-8) behind described cylindrical shell (5-1) inner venturi tube (5-3), be filled with irregular column medium in the described foaming section (5-8).
6. foam dust-removing equipment comprises:
Blowing agent fluid reservoir (1);
Quantitative interpolation pump (2) by pipeline and described blowing agent fluid reservoir (1) UNICOM;
Air compressor (3) by admission line and described quantitative interpolation pump (2) UNICOM;
Foam maker (5) by admission line and described air compressor (3) UNICOM;
With the water inlet pipe (4) of described generator (5) inlet UNICOM, described water inlet pipe (4) is provided with strainer (7), described quantitative interpolation pump (2) and described water inlet pipe (4) UNICOM;
Export the foam nozzle (6) that connects by pipeline with described foam maker (5);
It is characterized in that described foam maker (5) comprising:
Barrel is provided with the cylindrical shell (5-1) of air inlet pipe (5-4);
Be located at the input pipe (5-6) of described cylindrical shell (5-1) front end;
Be located at the Venturi tube (5-3) in the described cylindrical shell (5-1), described Venturi tube (5-3) throat leading portion is provided with air inlet (a);
Be arranged at the flow-disturbing tube (5-2) behind the described cylindrical shell (5-1), be provided with flow-disturbing tube axis (5-9) in the flow-disturbing tube (5-2) along its axis arranged, flow-disturbing tube axis (5-9) is gone up flow-disturbing linear leaf (5-5) and flow-disturbing short blade (5-5 ') alternately is installed at interval, flow-disturbing linear leaf (5-5) diameter is greater than flow-disturbing short blade (5-5 ') diameter, described flow-disturbing linear leaf (5-5) is provided with opening (b), and opening (b) mutual dislocation on the adjacent flow-disturbing linear leaf (5-5) is arranged;
Be arranged at the efferent duct (5-7) of described flow-disturbing tube (5-2) rear end.
7. foam dust-removing equipment according to claim 6 is characterized in that: be provided with positioning sleeve (5-10) between described flow-disturbing linear leaf (5-5) and the flow-disturbing short blade (5-5 ').
8. foam dust-removing equipment according to claim 6 is characterized in that: described a slice flow-disturbing linear leaf (5-5) goes up between opening (b) center of circle and flow-disturbing tube axis (5-9) axle center on the line and adjacent a slice flow-disturbing linear leaf (5-5) that the angle between the line is 180 ° between opening (b) center of circle and flow-disturbing tube axis (5-9) axle center.
9. foam dust-removing equipment according to claim 6 is characterized in that: the diameter of described flow-disturbing linear leaf (5-5) equates with the internal diameter of described cylindrical shell (5-1).
10. foam dust-removing equipment according to claim 6 is characterized in that: be provided with foaming section (5-8) behind described cylindrical shell (5-1) inner venturi tube (5-3), be filled with irregular column medium in the described foaming section (5-8).
CN201110092916.0A 2011-04-11 2011-04-11 Underground dust-removing foam generator and foam dust-removing equipment Active CN102182492B (en)

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CN201110092916.0A CN102182492B (en) 2011-04-11 2011-04-11 Underground dust-removing foam generator and foam dust-removing equipment

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Application Number Priority Date Filing Date Title
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CN102182492B CN102182492B (en) 2014-03-05

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Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102847476A (en) * 2012-10-08 2013-01-02 中国矿业大学 Pneumatic jet-type proportional foaming device
CN103388484A (en) * 2012-05-08 2013-11-13 中国矿业大学(北京) No-air-source foam plug dust removing system applied to underground coal mine
CN103706319A (en) * 2012-10-08 2014-04-09 中国石油化工集团公司 Self-suction pipeline mixing reactor
CN104153779A (en) * 2014-08-11 2014-11-19 山东科技大学 Following movement-type top coal caving working face foam-dedusting system
CN105148430A (en) * 2015-09-11 2015-12-16 中国石油化工股份有限公司 Foam generator with triangular prism turbulator parts attached to square walls
CN105682781A (en) * 2013-10-31 2016-06-15 日之出产业株式会社 Microbubble formation method, and microbubble formation device
CN111203123A (en) * 2018-11-22 2020-05-29 中国石油化工股份有限公司 Gas-liquid static mixer and gas-liquid mixing system
CN113083161A (en) * 2021-04-09 2021-07-09 华东理工大学 Jet type foam generating device for removing peculiar smell substances

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CN101251025A (en) * 2008-04-08 2008-08-27 中国矿业大学 Coal mine down-hole foam dedusting system
CN101251024A (en) * 2008-04-08 2008-08-27 中国矿业大学 Foam generator for coal mine dedusting
WO2009086822A2 (en) * 2008-01-10 2009-07-16 Neopor System Gmbh Method and associated apparatus for pressureless or nearly pressureless incorporation of foam into a pressurized material stream
CN202015582U (en) * 2011-04-11 2011-10-26 西安西科煤矿安全通风防灭火研究所有限公司 Foaming device for use in coal mine and foam dedusting equipment

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GB1188516A (en) * 1966-07-07 1970-04-15 Baxenden Chemical Company Ltd Mixing Device
CN1417451A (en) * 2002-12-02 2003-05-14 中国矿业大学 Triphase foam generator for preventing and treating spontaneous coal combustion
WO2009086822A2 (en) * 2008-01-10 2009-07-16 Neopor System Gmbh Method and associated apparatus for pressureless or nearly pressureless incorporation of foam into a pressurized material stream
CN101251025A (en) * 2008-04-08 2008-08-27 中国矿业大学 Coal mine down-hole foam dedusting system
CN101251024A (en) * 2008-04-08 2008-08-27 中国矿业大学 Foam generator for coal mine dedusting
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Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103388484A (en) * 2012-05-08 2013-11-13 中国矿业大学(北京) No-air-source foam plug dust removing system applied to underground coal mine
CN102847476A (en) * 2012-10-08 2013-01-02 中国矿业大学 Pneumatic jet-type proportional foaming device
CN103706319A (en) * 2012-10-08 2014-04-09 中国石油化工集团公司 Self-suction pipeline mixing reactor
CN103706319B (en) * 2012-10-08 2016-04-13 中国石油化工集团公司 Auto-suction pipe mixing reactor
CN105682781A (en) * 2013-10-31 2016-06-15 日之出产业株式会社 Microbubble formation method, and microbubble formation device
CN104153779A (en) * 2014-08-11 2014-11-19 山东科技大学 Following movement-type top coal caving working face foam-dedusting system
CN105148430A (en) * 2015-09-11 2015-12-16 中国石油化工股份有限公司 Foam generator with triangular prism turbulator parts attached to square walls
CN105148430B (en) * 2015-09-11 2018-04-24 中国石油化工股份有限公司青岛安全工程研究院 A kind of foam-making apparatus of square wall Annex III water chestnut column spoiler
CN111203123A (en) * 2018-11-22 2020-05-29 中国石油化工股份有限公司 Gas-liquid static mixer and gas-liquid mixing system
CN113083161A (en) * 2021-04-09 2021-07-09 华东理工大学 Jet type foam generating device for removing peculiar smell substances
CN113083161B (en) * 2021-04-09 2022-04-12 华东理工大学 Jet type foam generating device for removing peculiar smell substances

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