CN103089262B - Self-adsorption air type foam dust suspension system for coal mining working face - Google Patents
Self-adsorption air type foam dust suspension system for coal mining working face Download PDFInfo
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- CN103089262B CN103089262B CN201310054528.2A CN201310054528A CN103089262B CN 103089262 B CN103089262 B CN 103089262B CN 201310054528 A CN201310054528 A CN 201310054528A CN 103089262 B CN103089262 B CN 103089262B
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Abstract
The invention discloses a self-adsorption air type foam dust suspension system for a coal mining working face, and is particularly suitable for dust control of comprehensive mechanized coal mining working faces or comprehensive mechanized caving working faces. The self-adsorption air type foam dust suspension system mainly comprises components such as a high pressure water pipe, a pressure regulation valve, a liquid storage tank, a foaming agent adding device, a self-adsorption air rotational flow foaming device, a regulating valve and a circular arc foam spray head, wherein pressure water in a dustproof water supply system of the coal mining working face is jointed with the high pressure water pipe and regulated to proper pressure by virtue of the pressure regulation valve; the foaming agent in the liquid storage tank is automatically sucked into a water pipeline by virtue of the foaming agent adding device to form a foaming agent solution; and because gas phase-liquid phase foam is prepared by the self-adsorption air rotational flow foaming device arranged on a coal mining machine, the circular arc foam spray head is used for ejecting the foam to a left rolling cylinder and a right rolling cylinder of the coal mining machine for slicing dust sources. The system has a simple structure, and is convenient to mount and operate, safe and reliable; and moreover, a pressure ventilation pipeline is not needed, electric parts are not included, and the dust control effect of the coal mining working face can be improved.
Description
Technical field
The present invention relates to a kind of coal-face air self-suction formula foam dust suppression system, be especially applicable to the dust hazard management of underground coal mine fully-mechanized mining working, fully mechanized coal face.
Background technology
Coal-face is the topmost product dirt pits of Modern Pit, and its dust-producing amount accounts for 45% ~ 80% of the total dust-producing amount of each production link of underground coal mine usually.Wherein, coal-winning machine coal cutting is fully-mechanized mining working or fully mechanized coal face topmost product dirt operation, account for more than 70% of the total dust-producing amount of whole mechanical coal mining work plane, the physical and mental health of high concentrate dust serious threat operating personnel generated when coal body is broken and the safety in production of mine, therefore, coal-winning machine coal cutting is the most important thing of mechanical coal mining work plane dust-proof working.In order to prevent and treat coal-winning machine cutting dust, the inside and outside atomizing de-dusting technology of normal employing at present, but because many dust have hydrophobicity, the water smoke that surface tension is larger is difficult to effective moistening dust, in addition water smoke to connect dirt area little, cause the dustfall efficiency of spray technique lower, particularly poor to the capture ability of respirable dust.Than water smoke, foam has and connects the feature that large, the moistening dust ability of dirt area is strong, adsorption of dust performance is good, such that the dustfall efficiency of foam dust suppression technology is high, water consumption is little, becomes one of very effective means improving treating flour dust effect.But, adopt or fully mechanized coal face comprehensive, usually do not have can with coal-winning machine fuselage back and forth, the air line of movement in real time, and can be quite limited for the space of placement devices on coal-winning machine fuselage platform, and traditional foam dust suppression equipment need to lay air line by foam maker compressed air is provided, taken up space larger, and complicated operation, reliability are low, cannot be implemented on coal-winning machine, greatly hamper foam dust suppression technology combine adopt, the application of fully mechanized coal face.
Summary of the invention
Technical problem: the object of the invention is to overcome the deficiencies in the prior art, provide a kind of simple, easy to operate without the need to air line, system, automatically can suck surrounding air and carry out foaming and foam can be made fully to cover the coal-face air self-suction formula foam dust suppression system of the raising treating flour dust effect in parcel coal mining machine roller cut dirt source.
Technical scheme: coal-face air self-suction formula foam dust suppression system of the present invention, comprise high-pressure water pipe, control valve, pressure regulator valve, pressure meter, blowing agent adding set, fluid reservoir, main feed pipe, described main feed pipe end is connected with through threeway the two-way leading to coal-winning machine left and right cylinder and props up feed pipe, the entrance that two-way props up feed pipe is respectively equipped with control valve, two-way props up air self-suction eddy flow foam device feed pipe being connected to and being fixed on cylinder side, coal-winning machine left and right, the front portion of air self-suction eddy flow foam device is connected to foam pipeline I and foam pipeline II through distributor, each foam pipeline is respectively equipped with circular arc foam nozzle.
The equal bearing capacity of described high-pressure water pipe and main feed pipe is the high-pressure rubber pipe of 10 ~ 15MPa, and its diameter is 25mm; Described two-way props up feed pipe and is the high-pressure rubber pipe that bearing capacity is 8 ~ 10MPa, and its diameter is 13mm; Described air self-suction eddy flow foam device comprises jet nozzle, connect on jet nozzle at air-breathing mix cylinder, establish the eddy flow foaming cylindrical shell of foaming cyclone in the front portion of air-breathing mix cylinder is connected with, air-breathing mix cylinder is provided with suction hole; Described circular arc foam nozzle comprises semicircle bubble jet cavity, the conical flow guiding body be located on semicircle bubble jet cavity inner wall, and the outlet of semicircle bubble jet cavity forms arc spray groove through conical flow guiding body, and the width of arc spray groove is 4 ~ 6mm; Foam output channel interface I and foam output channel interface II that described distributor comprises fan-shaped distribution cavity, is located at the foam input channel interface of fan-shaped distribution cavity entrance point, is located at the fan-shaped distribution cavity port of export; The diameter of foam input channel interface is 51mm, and the diameter of foam output channel interface I and foam output channel interface II is respectively 38mm, 19mm; The foam output channel interface I that described foam pipeline I and diameter are 38mm matches, and foam pipeline II and diameter are that the foam output channel interface II of 19mm matches.
Beneficial effect: the present invention utilizes the dust-proof water system of coal-face, adds for blowing agent and foam generation provides water source and power, not containing electric component, safe and reliable; Produce foam by air self-suction eddy flow foam device, without the need to air line, system is simple, coal-winning machine only needs install the little air self-suction formula foam device of volume, is very suitable for using at fully-mechanized mining working or fully mechanized coal face; By control valve, pressure regulator valve and blowing agent adding set, achieve the conveying of press water and the preparation of expanding foam solution quickly; By main feed pipe and a feed pipe, for air self-suction eddy flow foam device provides the expanding foam solution of elevated pressures and flow velocity; Utilize circular arc foam nozzle, the dirt source during operation of coal mining machine roller cut effectively can be covered, wrapped up, suppress and sedimentation dust from source, thus improve dustfall efficiency; Can be regulated easily by two control valves, distributor, divide the foam volume being used in cylinder dirt source, coal-winning machine left and right, realize the distribution according to need of foam, both can improve dust-laying effect, the waste of foam can be avoided again.The present invention catchments that pressure regulation and control, blowing agent add, expanding foam solution transmission, foam generate, foam conveying and spray in one, and structure is simple, institute takes up space little, easy to use, and dust-laying effect is good, has practicality widely.
Accompanying drawing explanation
Fig. 1 is coal-face air self-suction formula foam dust suppression system schematic of the present invention;
Fig. 2 is the structural representation of air self-suction eddy flow foam device in the present invention;
Fig. 3 is the structure sectional view of circular arc foam nozzle in the present invention;
Fig. 4 is the cross section structure sectional view of Fig. 3;
Fig. 5 is the structural representation of distributor in the present invention.
In figure: high-pressure water pipe-1; Control valve-2; Pressure regulator valve-3; Pressure meter-4; Blowing agent adding set-5; Fluid reservoir-6; Main feed pipe-7; Prop up feed pipe-8; Control valve-9; Air self-suction eddy flow foam device-10; Jet nozzle-10-1; Air-breathing mix cylinder-10-2; Eddy flow foaming cylindrical shell-10-3; Suction hole-10-4; Distributor-11; Fan-shaped distribution cavity-11-1; Foam input channel interface-11-2; Foam output channel interface I-11-3; Foam output channel interface II-11-4; Foam pipeline I-12; Foam pipeline II-13; Circular arc foam nozzle-14; Semicircle bubble jet cavity-14-1; Conical flow guiding body-14-2; Arc spray groove-14-3.
Detailed description of the invention
Below in conjunction with accompanying drawing, one embodiment of the present of invention are further described:
As shown in Figure 1, coal-face air self-suction formula foam dust suppression system of the present invention, is formed primarily of high-pressure water pipe 1, control valve 2, pressure regulator valve 3, pressure meter 4, blowing agent adding set 5, fluid reservoir 6, main feed pipe 7, a feed pipe 8, control valve 9, air self-suction eddy flow foam device 10 circular arc foam nozzle; Described high-pressure water pipe 1 and the equal bearing capacity of main feed pipe 7 are the high-pressure rubber pipe of 10 ~ 15MPa, and its diameter is 25mm; Described two-way props up feed pipe 8 and is the high-pressure rubber pipe that bearing capacity is 8 ~ 10MPa, and its diameter is 13mm; Described main feed pipe 7 end is connected with through threeway the two-way leading to coal-winning machine left and right cylinder and props up feed pipe 8, the entrance that two-way props up feed pipe 8 is respectively equipped with control valve 9, two-way props up the air self-suction eddy flow foam device 10 feed pipe 8 being connected to and being fixed on cylinder side, coal-winning machine left and right, the front portion of air self-suction eddy flow foam device is connected to foam pipeline I 12 and foam pipeline II 13 through distributor 11, each foam pipeline is respectively equipped with circular arc foam nozzle 14; The transparent hose of described foam pipeline I 12 to be diameters be 38mm, the transparent hose of foam pipeline II 13 to be diameters be 19mm.
As shown in Figure 2, described air self-suction eddy flow foam device 10 comprises jet nozzle 10-1, connect on jet nozzle 10-1 at air-breathing mix cylinder 10-2, establish the eddy flow foaming cylindrical shell 10-3 of foaming cyclone in the front portion of air-breathing mix cylinder 10-2 is connected with, air-breathing mix cylinder 10-1 is provided with suction hole 10-4.
As shown in Figure 3,4, described circular arc foam nozzle I 14 comprises semicircle bubble jet cavity 14-1, the conical flow guiding body 14-2 be located on semicircle bubble jet cavity 14-1 inwall, the outlet of semicircle bubble jet cavity 14-1 forms arc spray groove 14-3 through conical flow guiding body 14-2, and the width of arc spray groove 14-3 is 4 ~ 6mm.
As shown in Figure 5, foam output channel interface I 11-3 and foam output channel interface II 11-4 that described distributor 11 comprises fan-shaped distribution cavity 11-1, is located at the foam input channel interface 11-2 of fan-shaped distribution cavity 11-1 entrance point, is located at the fan-shaped distribution cavity 11-1 port of export, the diameter of foam input channel interface 11-2 is 51mm, the diameter of foam output channel interface I 11-3 and foam output channel interface II 11-4 is respectively 38mm, 19mm.Foam output channel interface I 11-3 that described foam pipeline I 12 and diameter are 38mm matches, and foam pipeline II 13 and diameter are that foam output channel interface II 11-4 of 19mm matches.
Operating principle: high-pressure water pipe 1 is connected with underground pressure water lines through snap joint, open control valve 2, water under high pressure in the dust-proof water system in down-hole to flow in high-pressure water pipe 1, observe pressure meter 4 reading by pressure regulator valve 3 hydraulic pressure is adjusted to suitable pressure, press water is through blowing agent adding set 5, automatically the blowing agent in fluid reservoir 6 is sucked, form expanding foam solution, and then enter main feed pipe 7, be divided into two-way to prop up feed pipe 8, through jet nozzle 10-1, expanding foam solution is at a high speed injected air-breathing mix cylinder 10-2, expanding foam solution and air pass energy mass transfer in air-breathing mix cylinder 10-2, realize fully mixing, and abundant foaming is completed in eddy flow foaming cylindrical shell 10-3, distributor 11, foam pipeline I 12, the gas-liquid two-phase foam that air self-suction eddy flow foam device 10 generates by foam pipeline II 13 distributes, be delivered to circular arc foam nozzle 14, circular arc foam nozzle 14 by foam jet to cylinder cut dirt source, coal-winning machine left and right, the foam growing amount of air self-suction eddy flow foam device 10 is changed by control valve 9, until cylinder cut dirt source, coal-winning machine left and right covers by foam fully that eject through arc spray groove 14-3, parcel.
Claims (1)
1. a coal-face air self-suction formula foam dust suppression system, comprise high-pressure water pipe (1), control valve (2), pressure regulator valve (3), pressure meter (4), blowing agent adding set (5), fluid reservoir (6), main feed pipe (7), it is characterized in that: the end of described main feed pipe (7) is connected with through threeway the two-way leading to coal-winning machine left and right cylinder and props up feed pipe (8), the entrance that two-way props up feed pipe (8) is respectively equipped with control valve (9), two-way props up the air self-suction eddy flow foam device (10) feed pipe (8) being connected to and being fixed on cylinder side, coal-winning machine left and right, the outlet of air self-suction eddy flow foam device (10) is connected to foam pipeline I (12) and foam pipeline II (13) through distributor (11), each foam pipeline end is respectively equipped with circular arc foam nozzle (14),
Described high-pressure water pipe (1) and main feed pipe (7) be the high-pressure rubber pipe that bearing capacity is 10 ~ 15MPa, its diameter is 25mm; Described two-way props up feed pipe (8) and is the high-pressure rubber pipe that bearing capacity is 8 ~ 10MPa, and its diameter is 13mm;
Described air self-suction eddy flow foam device (10) comprises jet nozzle (10-1), connect on jet nozzle (10-1) at air-breathing mix cylinder (10-2), establish eddy flow foaming cylindrical shell (10-3) of foaming cyclone in the front portion of air-breathing mix cylinder (10-2) is connected with, air-breathing mix cylinder (10-1) is provided with suction hole (10-4);
Described circular arc foam nozzle (14) comprises semicircle bubble jet cavity (14-1), the conical flow guiding body (14-2) be located on semicircle bubble jet cavity (14-1) inwall, the outlet of semicircle bubble jet cavity (14-1) forms arc spray groove (14-3) through conical flow guiding body (14-2), and the width of arc spray groove (14-3) is 4 ~ 6mm;
Foam output channel interface I (11-3) and foam output channel interface II (11-4) that described distributor (11) comprises fan-shaped distribution cavity (11-1), is located at the foam input channel interface (11-2) of fan-shaped distribution cavity (11-1) entrance point, is located at fan-shaped distribution cavity (11-1) port of export; The diameter of foam input channel interface (11-2) is 51mm, and the diameter of foam output channel interface I (11-3) and foam output channel interface II (11-4) is respectively 38mm, 19mm;
The foam output channel interface I (11-3) that described foam pipeline I (12) and diameter are 38mm matches, and foam pipeline II (13) and diameter are that the foam output channel interface II (11-4) of 19mm matches.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310054528.2A CN103089262B (en) | 2013-02-21 | 2013-02-21 | Self-adsorption air type foam dust suspension system for coal mining working face |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310054528.2A CN103089262B (en) | 2013-02-21 | 2013-02-21 | Self-adsorption air type foam dust suspension system for coal mining working face |
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| CN103089262A CN103089262A (en) | 2013-05-08 |
| CN103089262B true CN103089262B (en) | 2015-03-04 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104632216B (en) * | 2015-01-16 | 2017-04-05 | 中国矿业大学 | Bulb apparatus are produced in the self-priming short distance reinforcing of rotating jet for coal-winning machine dust suppression |
| US10125606B2 (en) * | 2016-05-09 | 2018-11-13 | Joy Global Underground Mining Llc | Systems and methods for fluid delivery in a longwall mining system |
| CN107218041B (en) * | 2017-06-30 | 2019-05-31 | 江苏大学 | One kind is comprehensive to dig water jet premix self-priming foam dust laying device of calming the anger |
| CN111101938B (en) * | 2020-02-15 | 2021-02-26 | 北京中矿兴宝环保科技有限公司 | Micro-fog dust suppression method based on cutting dust source of coal mining machine |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU636410A2 (en) * | 1975-07-09 | 1978-12-05 | Ордена Трудового Красного Знамени Институт Горного Дела Им. А.А.Скочинского | Dust suppressing device |
| SU1337525A1 (en) * | 1982-02-08 | 1987-09-15 | Институт горного дела им.А.А.Скочинского | Foam generator |
| CN2782148Y (en) * | 2005-04-12 | 2006-05-24 | 兖州煤业股份有限公司 | Mine foam extinguisher |
| CN201180560Y (en) * | 2008-04-08 | 2009-01-14 | 中国矿业大学 | Foam dust removing system used for coal mine |
| CN102228813B (en) * | 2011-05-19 | 2013-09-25 | 中国矿业大学 | Apparatus for automatically adding foaming agent |
| CN202510154U (en) * | 2011-12-01 | 2012-10-31 | 康立杰 | Foam dust-suppression system for mine digging |
| CN102434187A (en) * | 2011-12-01 | 2012-05-02 | 康立杰 | Foam dust suppression system and foam dust suppression method for mine excavation |
| CN102536236B (en) * | 2011-12-30 | 2014-07-16 | 中国矿业大学 | Settling, isolating and removing integrated dust prevention method of fully mechanized excavation face |
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Inventor after: Wang Hetang Inventor after: Wang Deming Inventor after: Wang Qingguo Inventor after: Jia Zhiqiang Inventor after: Chen Gui Inventor after: Si Weibin Inventor before: Wang Deming Inventor before: Wang Hetang Inventor before: Wang Qingguo Inventor before: Jia Zhiqiang Inventor before: Chen Gui Inventor before: Si Weibin |
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Free format text: CORRECT: INVENTOR; FROM: WANG DEMING WANG HETANG WANG QINGGUO JIA ZHIQIANG CHEN GUI SI WEIBIN TO: WANG HETANG WANG DEMING WANG QINGGUO JIA ZHIQIANG CHEN GUI SI WEIBIN |
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