CN101251024B - Foam generator for dedusting coal mine - Google Patents

Foam generator for dedusting coal mine Download PDF

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Publication number
CN101251024B
CN101251024B CN2008100235779A CN200810023577A CN101251024B CN 101251024 B CN101251024 B CN 101251024B CN 2008100235779 A CN2008100235779 A CN 2008100235779A CN 200810023577 A CN200810023577 A CN 200810023577A CN 101251024 B CN101251024 B CN 101251024B
Authority
CN
China
Prior art keywords
foam
venturi tube
foam generator
diffuser
venturi
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN2008100235779A
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Chinese (zh)
Other versions
CN101251024A (en
Inventor
王德明
任万兴
王兵兵
巫斌伟
黄本斌
仲晓星
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China University of Mining and Technology CUMT
Original Assignee
China University of Mining and Technology CUMT
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by China University of Mining and Technology CUMT filed Critical China University of Mining and Technology CUMT
Priority to CN2008100235779A priority Critical patent/CN101251024B/en
Publication of CN101251024A publication Critical patent/CN101251024A/en
Application granted granted Critical
Publication of CN101251024B publication Critical patent/CN101251024B/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The invention relates to a foam generator used for coal mine underground dust removal, mainly comprising a cylinder body, a Venturi tube, a spoiler, baffle plates and so on, wherein, the cylinder body is a cylinder; the Venturi tube is arranged inside the cylinder body; a diffuser of the Venturi tube is uniformly provided with a certain number of air inlet pores; the spoiler is a hollow cone and is horizontally arranged inside the space of the diffuser of the Venturi tube and fixed on the cylinder body by a support; a plurality of pores are arranged on the surface of the spoiler; the baffle plates are arranged on the rear of the foam generator. Gas enters from the side face of the cylinder body of the foam generator; foam liquid flows into the foam generator through a pipe on the front end of the foam generator; the flow velocity of the foam liquid is increased when the foam liquid passes through the throat section of the Venturi tube, and jets are formed; gas uniformly enters from the pores of the diffuser of the Venturi tube, and the gas and the liquid are fully mixed after passing through the spoiler and a plurality of baffle plates, consequently two-phase foams are generated. The foam generator used for coal mine underground dust removal has the advantages of stable structure, convenient use, light weight, small volume, no blockage and good foaming effect.

Description

A kind of colliery dedusting foam-making apparatus
Technical field
The present invention relates to a kind of foam-making apparatus, especially relate to the foam-making apparatus that a kind of coal mine dedusting is used,
Background technology
The per pass operation of coal mine operation all produces with a large amount of dust, and workman's operation in this environment will suck a large amount of dust, serious harm workman's physical and mental health.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, have also caused enormous economic loss to country.Be the effectively preventing Mine Dust, the foam dust-removing that just begins one's study of external the seventies, the key technology of foam dust-removing is exactly a foam maker.
At present, use more two-phase foam maker and surely belong to net formula foam maker, and it is widely used in industries such as fire-fighting, oil.The net formula foam maker that uses adopts gas directly to enter foam maker by pipeline at present, the liquid film of advertising on the foam screen foams, and the normal compressed air that uses high pressure, high flow rate can cause air-flow too violent under the coal mine, the liquid film that dispels or atomize reduces coefficient of foaming; In addition, existing net formula foam maker adopts shower nozzle to reach the purpose of even dispersing liquid more; Often contain impurity in the mine water of colliery, cause spray nozzle clogging easily, influence is used; The nozzle and the fixed distance between the foam screen of net formula foam maker inside are constant, but in the use, the pressure of liquid not simultaneously, the range of nozzle is different, therefore causes the film forming efficiency of liquid on foam screen different, influences foaming effect.So, be necessary at applied environment special under the coal mine and condition, design a kind of novel foam maker.
Summary of the invention
The present invention seeks at the deficiency in the prior art, provide a kind of simple in structure, little, in light weight, the difficult obstruction of volume, the colliery dedusting foam-making apparatus that foaming effect is good.
For achieving the above object, the technical solution used in the present invention is: it comprises cylindrical shell, air inlet pipe, the air inlet aperture of offering on Venturi tube and the Venturi tube diffuser, described cylindrical shell is made of venturi socket, the foam obstacle tube and the tail pipe that are connected in venturi socket two ends respectively by flange, in the diffuser of described Venturi tube, be fixed with a flow spoiler, flow spoiler is fixed in the connection place of venturi socket and foam obstacle tube by fixed support, is interval with the polylith balk board that interleaves up and down in the foam obstacle tube.
Described flow spoiler is a hollow cone, and the conical surface is corresponding with the diffuser of Venturi tube, has several apertures on it.
The present invention makes full use of the characteristics of compressed air high-voltage high-speed, and the flow spoiler of cone is set in the Venturi tube cylindrical shell, makes gas-liquid formation turbulent flow, gas-liquid mixed become bubble to combine together.The air inlet pipe air inlet pipe of Compressed Gas through being located on the cylindrical shell enters cylindrical shell, and evenly enters through venturi diffuser air inlet aperture, avoided gas too fierce, disperses uneven.For avoid the part foam solution not and gas fully mix, be provided with some balk boards in the foam maker rear end, balk board is arranged crosswise at a certain distance.The foam of so preliminary generation and the foam solution that do not have foaming are under the effect of air-flow, and when flowing through balk board, gas-liquid is further fully mixed, and has improved foaming effect.This device does not need to use the shower nozzle can direct blebbing, has avoided the susceptible to plugging problem of shower nozzle, and whole apparatus structure compactness, volume be little, in light weight, it is simple to use, foaming effect is good, has practicality widely in the present technique field.
Description of drawings
Accompanying drawing is the colliery dedusting of an invention foam-making apparatus structure sectional view.
Among the figure: venturi socket-1, air inlet pipe-2, flow spoiler-3, Venturi tube-4, air inlet aperture-5, fixed support-6, tail pipe-7, balk board-8, foam obstacle tube-9, sealing mat-10.
The specific embodiment
Below in conjunction with accompanying drawing one embodiment of the present of invention are further described:
Shown in the accompanying drawing, whole foaming cylindrical shell is made of venturi socket 1, foam obstacle tube 9 and tail pipe 7, and foam obstacle tube 9 is connected in the front end of venturi socket 1 by flange, and tail pipe 7 is in the rear end that is connected in venturi socket 1 by flange.Be evenly distributed with several air inlet apertures 5 on the passage diffuser surface of Venturi tube 4, be fixed with the flow spoiler 3 of a hollow cone in Venturi tube 4 diffusers, the taper seat of flow spoiler 3 is corresponding with the diffuser of Venturi tube 4, the expansion that is placed on Venturi tube 4 of droping to the ground is calculated in the section, its axis and Venturi tube 4 throat axis are on same horizon, have several apertures on the flow spoiler 3, it is fixed in the connection place of venturi socket 1 and foam obstacle tube 9 by fixed support 6, sealing mat 10 is equipped with in the connection place, is interval with the polylith balk board 8 that interleaves up and down in the foam obstacle tube 9.
Operating principle: foam solution enters from the tail pipe 7 of foam maker cylinder back-end by the road, when Venturi tube 4 throats, static pressure reduces, ram compression increases, after formation jet compressed air enters cylindrical shell through air inlet pipe 2, entrainmenting under the acting in conjunction with gas pressure of liquid jet, evenly enter Venturi tube inside by aperture 5, form gas-liquid mixed stream.Gas-liquid mixed stream impinges upon on the taper seat of flow spoiler 3, and a part of gas-liquid becomes bubble through the aperture above the flow spoiler, and another part gas-liquid impingement flow spoiler 3 backs form turbulent flow, and gas-liquid two-phase is further mixed, and form the part foam.The foam that generates moves forward under the effect of air-flow with the foam solution that does not become to steep, and enters in the foam obstacle tube 9, and through the upset effect of balk board 8 arranged in a crossed manner at interval, gas-liquid is fully mixed, and finally forms uniform foam, flows out through exporting 9.

Claims (1)

1. colliery dedusting foam-making apparatus, it comprises cylindrical shell, air inlet pipe (2), the air inlet aperture of offering on Venturi tube (4) and Venturi tube (4) diffuser (5), it is characterized in that: described cylindrical shell is by venturi socket (1), the foam obstacle tube (9) and the tail pipe (7) that are connected in venturi socket (1) two ends by flange respectively constitute, in the diffuser of described Venturi tube (4), be fixed with a flow spoiler (3), flow spoiler (3) is a hollow cone, the conical surface is corresponding with the diffuser of Venturi tube (4), have several apertures on it, flow spoiler (3) is fixed in the connection place of venturi socket (1) and foam obstacle tube (9) by fixed support (6), is interval with the polylith balk board (8) that interleaves up and down in the foam obstacle tube (9).
CN2008100235779A 2008-04-08 2008-04-08 Foam generator for dedusting coal mine Expired - Fee Related CN101251024B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2008100235779A CN101251024B (en) 2008-04-08 2008-04-08 Foam generator for dedusting coal mine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2008100235779A CN101251024B (en) 2008-04-08 2008-04-08 Foam generator for dedusting coal mine

Publications (2)

Publication Number Publication Date
CN101251024A CN101251024A (en) 2008-08-27
CN101251024B true CN101251024B (en) 2010-09-15

Family

ID=39954597

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2008100235779A Expired - Fee Related CN101251024B (en) 2008-04-08 2008-04-08 Foam generator for dedusting coal mine

Country Status (1)

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CN (1) CN101251024B (en)

Families Citing this family (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101876242B (en) * 2010-04-28 2012-12-19 中国石油化工股份有限公司胜利油田分公司地质科学研究院 Foam-generating method for experiment and foam generator thereof
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
CN102619793A (en) * 2011-09-08 2012-08-01 耐世特汽车系统(苏州)有限公司 Sealing device for oil can lid and automotive steering system
CN102367815A (en) * 2011-10-18 2012-03-07 奇瑞汽车股份有限公司 Power-assisted steering liquid storage tank
CN103195464A (en) * 2013-04-16 2013-07-10 天津理工大学 Application equipment of foam-sol technology for controlling coal dust on working faces of coal mines
CN103541757B (en) * 2013-10-18 2016-03-23 中国矿业大学 A kind of mining fire extinguishing foam producer
CN103670492B (en) * 2013-12-17 2016-04-06 中国矿业大学 A kind of Dual-fluid magnetization foam dustfall system and method
CN104329110B (en) * 2014-11-04 2017-04-05 中国矿业大学 A kind of foam filler foamed system with underground coal mine airduct air as source of the gas
CN105214531B (en) * 2015-09-11 2017-08-29 中国石油化工股份有限公司青岛安全工程研究院 Foam-making apparatus
CN105126277B (en) * 2015-09-11 2018-03-06 中国石油化工股份有限公司青岛安全工程研究院 A kind of big flow compressed-air foam mixing arrangement
CN105126276B (en) * 2015-09-11 2018-03-23 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 band combination spoiler
CN105080004B (en) * 2015-09-11 2018-10-12 中国石油化工股份有限公司 A kind of foam-making apparatus
CN105521720B (en) * 2015-12-21 2018-01-16 西安石油大学 A kind of foam maker
CN109603060B (en) * 2018-12-14 2022-03-15 九江中船长安消防设备有限公司 Special spray gun of air foam fire extinguishing apparatus
CN110201589B (en) * 2019-05-10 2020-09-11 清华大学 Micro mixer for dispersing liquid drops or bubbles in high-viscosity fluid
CN110788997B (en) * 2019-11-07 2021-03-16 陈舸 Foam concrete filling device and application thereof and foam concrete filling method
CN112546772B (en) * 2020-11-27 2022-07-08 西南科技大学 Dust removal bubble generator and dust removal method thereof

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Publication number Publication date
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Granted publication date: 20100915

Termination date: 20160408