CN102226411A

CN102226411A - A negative pressure mine foam dust suppression device

Info

Publication number: CN102226411A
Application number: CN2011101508811A
Authority: CN
Inventors: 王德明; 任万兴; 王和堂; 陆新晓; 高庆丛; 郭新安; 张义坤
Original assignee: China University of Mining and Technology Beijing CUMTB
Current assignee: China University of Mining and Technology Beijing CUMTB
Priority date: 2011-06-07
Filing date: 2011-06-07
Publication date: 2011-10-26
Anticipated expiration: 2031-06-07
Also published as: CN102226411B

Abstract

A negative pressure mine foam dust suppression device is mainly composed of a liquid storage tank, a feng shui pipeline, a feng shui linkage switch, a proportional mixer, a foamer, a foam delivery pipe, a foam distributor and other components. The generation and closing of the dust-removing foam is controlled by the wind-water linkage switch, and the foaming agent is sucked into the water inlet pipe through the negative pressure difference formed by the adjustable small flow proportional mixer installed in the water inlet pipe through the pressured water inlet pipe underground, and the foaming agent is automatically sucked into the water inlet pipe. Prepare and form a uniform foaming liquid. The foaming liquid and compressed air are fully mixed in the foamer to generate a large amount of foam. The foam enters the high-pressure hose through the distributor, and finally sprays (shoots) it to the dust source and dusty air from the foam nozzle. Dust. The device does not need a power source, and has the characteristics of intrinsic safety, low energy consumption, convenient operation, small size, and light weight. It is especially suitable for the prevention and control of dust disasters in narrow spaces such as coal mine underground mining face, belt conveyor transfer point, and tunnel excavation construction.

Description

A kind of suction type is mining foam device for reducing dust

Technical field

The present invention relates to the mining foam device for reducing dust of a kind of suction type, especially a kind of mining foam device for reducing dust of suction type that is applicable under the coal mine.

Background technology

In order to prevent and treat dust, generally adopt dust preventions such as atomizing de-dusting and coal-bed flooding under the coal mine, but all can not contain the dust disaster well because efficiency of dust collection is lower.The foam dust-settling technology has remarkable advantages such as efficient height, water consumption be little, since proposing the 1950's, obtained bigger development, at home and abroad some mining areas have obtained the test application, but because the defective of foam device for reducing dust, make the development and the application of foam dust-settling technology be subjected to serious restriction, for many years stagnation.

The patent No. is that ZL200810023578.3 discloses a kind of foam dedusting system that is used under the coal mine, adopts the quantitative pump that adds that blowing agent is added in the water inlet pipe, adds source of the gas then, through foam maker mixing post-foaming.A kind of foam dust-removing device that U.S. Deter company also announces at first utilizes pump to be extracted in the pipeline water, blowing agent, then with compressor in the high-speed air that produces in mixer, realize mixing by force, deliver to the wire lath place foaming of foam device again.But these two kinds of foam devices all are to adopt kinetic pump that blowing agent is added in the pipeline, and the latter also must foam by means of grid, has not only increased the complexity of system, and have reduced the safety and the reliability of device.

Patent announcement number discloses a kind of rock drilling bubble dust collector for CN87106798A, mainly contain compositions such as fluid reservoir, compressed air inlet port, integrated package, froth nozzle, bubble jet mouth, its foam theory is earlier water and blowing agent to be mixed in fluid reservoir, utilize integrated package that compressed air is shunted then, utilize malleation that foaming liquid is pressed into pipeline, foam by froth nozzle; The patent No. is that ZL200920092287 discloses a kind of foam dust suppression device, its foam theory also is earlier compressed air to be shunted, utilize compressed-air actuated malleation that the blowing agent of fluid reservoir is pressed into pipeline, last blowing agent, water under high pressure and compressed air mixed foaming in foam maker.The both needs to prepare in advance the aqueous solution that contains blowing agent in fluid reservoir, utilize to calm the anger then the foaming agent solution in the fluid reservoir is extruded, but said apparatus all can not be realized the automatic configuration of foaming agent solution, therefore increased labour intensity, the kinetic energy of in addition calming the anger is limited, and be subject to the subsurface environment influence of various factors, be difficult to reliable and stable operation.

Summary of the invention

Technical problem: the objective of the invention is to overcome the weak point in the prior art, a kind of essential safety is provided, easy to operate, dependable performance, the high-performance foam device for reducing dust that depositing dust efficient is high.

Technical scheme: suction type of the present invention is mining foam device for reducing dust, comprise foam maker, also comprise the blowing agent fluid reservoir that is provided with filling opening, described foam maker is fixed on the sidewall of blowing agent fluid reservoir, be connected with the blast pipe that is fixed on the blowing agent fluid reservoir outer wall on the foam maker respectively, water inlet pipe and foam pipeline, be provided with flap valve on the water inlet pipe successively, adjustable low discharge proportioner and water control valve, blast pipe is provided with volume control damper, water inlet pipe and blast pipe are fixing side by side, Gu Ding water inlet pipe and blast pipe entrance are provided with wind power ganged switch side by side, described adjustable low discharge proportioner comprises that an end links to each other with water inlet pipe, the other end inserts the pipette of blowing agent fluid reservoir bottom, pipette is provided with one way valve, the water inlet pipe of both sides is provided with bypass pipe before and after the pipette, and bypass pipe is provided with control valve.

Described water control valve rear portion is provided with strainer; The entrance of described water inlet pipe and blast pipe is provided with quick connection-peg; The exit of described foam pipeline is provided with foam dispenser.

Beneficial effect: the generation of adopting wind power ganged switch control dedusting foam with close, utilize the water pipe of compressing into of down-hole, the Negative Pressure Difference that forms by the adjustable low discharge proportioner of in water inlet pipe, installing, blowing agent is sucked in the water inlet pipe, form uniform expanding foam solution, expanding foam solution fully mixes in foam maker with compressed air, produces a large amount of foams, foam enters high-pressure rubber pipe through distributor, is sprayed to the dirt source and dust laden air carries out depositing dust by foam nozzle.Be particularly useful for the control of narrow and small place, space dust disasters such as getting working face under the coal mine, travelling belt transfer point, tunnel, depositing dust efficient height, applicability is strong, this device need not power supply, essential safety, energy consumption is low, volume is little, and is in light weight, easy to operate when using in the down-hole, be particularly useful for the control of narrow and small place, space dust disasters such as getting working face and transfer point.Need not be pre-mixed, package unit does not need additionaling power, and is simple in structure, volume is little, stable and reliable operation, and is convenient to operation.

Description of drawings

Fig. 1 is a right stravismus structural representation of the present invention.

Fig. 2 is an a left side of the present invention stravismus structural representation.

Among the figure: the quick connection-peg of 1-; The wind power ganged switch of 2-; 3-blowing agent fluid reservoir; The 4-blast pipe; The 5-water inlet pipe; The 6-water control valve; The 7-strainer; The 8-bypass pipe; The 9-volume control damper; The 10-one way valve; The 11-pipette; The 12-filling opening; The 13-flap valve; The 14-foam maker; The 15-foam pipeline; The 16-foam dispenser.

The specific embodiment

Below in conjunction with accompanying drawing embodiments of the invention are further described:

Suction type of the present invention is mining foam device for reducing dust, mainly constitute by blowing agent fluid reservoir 3, blast pipe 4, water inlet pipe 5, foam maker 14 and foam pipeline on three sides that are fixed on blowing agent fluid reservoir 3, wherein foam maker 14 is fixed on the front side wall of blowing agent fluid reservoir 3, be fastened on blast pipe 4, water inlet pipe 5 and foam pipeline 15 on blowing agent fluid reservoir 3 outer walls on the foam maker 14 respectively, the entrance of water inlet pipe 5 and blast pipe 4 is located at quick connection-peg 1; The exit of foam pipeline 15 is provided with foam dispenser 16, and foam dispenser 16 constitutes for three quick connection-pegs 1 that are hexagonal angle.Be provided with flap valve 13, adjustable low discharge proportioner and water control valve 6 on the water inlet pipe 5 successively, the rear portion of water control valve 6 is provided with strainer 7.Blast pipe 4 is provided with volume control damper 9, water inlet pipe 5 and blast pipe 4 are fixing side by side, Gu Ding water inlet pipe 5 and blast pipe 4 entrance pipes are provided with wind power ganged switch 2 side by side, wind power ganged switch 2 is by two ball valves that are located at respectively on blast pipe 4 and the water inlet pipe 5, the handle that connects the connecting rod of two ball valves and be located on the connecting rod constitutes, can control two spool rotations of water inlet pipe 5 and blast pipe 4 by the handle of wind power ganged switch 2, realize opening simultaneously or to close the function of two ball valves of water inlet pipe 5 and blast pipe 4, thereby reach the purpose that wind and water are controlled simultaneously.Described adjustable low discharge proportioner mainly is made of pipette 11 and bypass pipe 8, pipette 11 1 ends link to each other with water inlet pipe 5, the other end inserts blowing agent fluid reservoir 3 bottom inlets and links to each other, pipette 11 is provided with one way valve 10, bypass pipe 8 also is connected on the water inlet pipe 5 of both sides, pipette 11 front and back, and bypass pipe 8 is provided with control valve.The big I of blowing agent fluid reservoir 3 determines that according to the down-hole actual conditions can adopt height is 250～350mm, and wide is 400～600mm, and length is 500～700mm, is that the steel plate of 5mm is welded with thickness.Blowing agent fluid reservoir 3 is provided with filling opening 12, and the bottom is provided with the liquid outlet that links to each other with pipette 11.

Operating principle: after wind power ganged switch 2 was opened, the pressure water in the pipeline entered into adjustable low discharge proportioner through control valve 6, strainer 7.The negative pressure that proportioner utilizes ingoing stream portion's motion within it to be produced sucks the blowing agent in the pipette 11 in the water inlet pipe 5 automatically, blowing agent and water are after proportioner mixes, form uniform expanding foam solution and enter foam maker 14, the compressed air that expanding foam solution is introduced with blast pipe 4 in foam maker 14 meets and forms strong gas-liquid turbulent flow, and then form uniform foam, foam enters into foam dispenser 16 through foam pipeline 15 again, in foam dispenser 16, foam can be realized uniform distribution, foam dispenser 16 connects high-pressure rubber pipe by three quick connection-pegs 1 that are hexagonal angle separately, foam is assigned to product dirt place, spray through foam nozzle, carry out efficient depositing dust.

Claims

1. A negative pressure mine foam dust suppression device, comprising a foamer (14), characterized in that: it also includes a foaming agent liquid storage tank (3) with a liquid filling port (12) on the top, said The foamer (14) is fixed on the side wall of the foaming agent liquid storage tank (3), and the foamer (14) is respectively connected with an air inlet pipe ( 4), the water inlet pipe (5) and the foam delivery pipe (15), the water inlet pipe (5) is provided with a check valve (13), an adjustable small flow proportional mixer and a water volume control valve (6), and the air inlet pipe (4) is equipped with an air volume control valve (9), the water inlet pipe (5) and the air inlet pipe (4) are fixed side by side, and the inlet of the water inlet pipe (5) and the air inlet pipe (4) fixed side by side is equipped with a Fengshui linkage Switch (2), the adjustable small flow proportional mixer includes a suction pipe (11) with one end connected to the water inlet pipe (5) and the other end inserted into the bottom of the foaming agent storage tank (3), the suction pipe ( 11) is provided with a one-way valve (10), and the inlet pipes (5) on both sides of the suction pipe (11) are provided with bypass pipes (8), and the bypass pipes (8) are provided with control valves.

2. The negative pressure mining foam dust suppression device according to claim 1, characterized in that: a filter (7) is provided at the rear of the water volume control valve (6).

3. The negative pressure mining foam dust suppressing device according to claim 1, characterized in that: the inlets of the water inlet pipe (5) and the air inlet pipe (4) are provided with quick plug joints (1).

4. The negative pressure mining foam dust suppression device according to claim 1, characterized in that: a foam distributor (16) is provided at the outlet of the foam delivery pipe (15).