CN203515593U - Negative-pressure atomization secondary dust-settling device for coal mining machines - Google Patents
Negative-pressure atomization secondary dust-settling device for coal mining machines Download PDFInfo
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- CN203515593U CN203515593U CN201320623264.3U CN201320623264U CN203515593U CN 203515593 U CN203515593 U CN 203515593U CN 201320623264 U CN201320623264 U CN 201320623264U CN 203515593 U CN203515593 U CN 203515593U
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Abstract
The utility model discloses a negative-pressure atomization secondary dust-settling device for coal mining machines. A negative-pressure atomization secondary dust-settling device system for the coal mining machines comprises a high-pressure water pump, a high-pressure rubber pipe, the coal mining machines and negative-pressure atomization secondary dust-settling devices for the coal mining machines, wherein the high-pressure water pump enters the negative-pressure atomization secondary dust-settling devices, which are arranged on machine planes of the coal mining machines, for the coal mining machines to be connected with the negative-pressure atomization secondary dust-settling devices by virtue of the high-pressure rubber pipe arranged in a cable trough; the high-pressure rubber pipe is arranged in a cable dragging clamping plate, and is dragged together with a cable by the coal mining machines. The negative-pressure atomization secondary dust-settling device for the coal mining machine comprises a tank, an exhaust inlet, induced-draft pipes, a valve block and a stainless steel pipe connecting piece, wherein a hole is formed in the inverted trapezoidal tank of which the lower part is semi-opened; the exhaust inlet is formed in the hole, and is fixedly connected with the hole; the induced-draft pipes are positioned in the tank; the valve block is arranged on the waste laneway side of the inner wall of the tank, and is connected with the exhaust inlet.
Description
Technical field
The present invention relates to mining equiment dedusting field.
Background technology
Fully-mechanized coalface, standard machinery coal-face and comprehensive mechanization Sub-Level Caving coal-face, in coal-winning machine coal mining process, coal-winning machine produces a large amount of dust around, to the personnel of coal-winning machine driver and work plane work are healthy, cause and has a strong impact on working environment.Under coal mine, longwall machinery coal-face drum shearer depositing dust problem is one of technical barrier that in world wide, coal industry faces.
In the situation that not taking any measurements for reduction, coal-winning machine often cuts one ton of coal, conventionally will produce 2 * 10
5～5 * 10
5the coal dust of mg.After the measurements for reduction such as the interior external spraying of coal-winning machine adopting at present, coal-bed flooding, the dust-producing amount that coal-winning machine often cuts one ton of matchmaker can be reduced to 1 * 10
4～1.2 * 10
4mg.But at coal-winning machine around and rear (lower distinguished and admirable),, the dustiness in every cubic metres of air is still up to more than 200～1000mg.
Although coal-winning machine mostly adopts the measurements for reduction such as inside and outside spraying at present, but the water adopting due to which mostly is natural pressure, cause hydraulic pressure low, atomizing effect is poor, can not effectively catch the dust producing in cylinder coal cutting process, near the dust concentration of coal-winning machine is around still considerably beyond the dust concentration national standard in working environment.
Coal miner is under such condition and works, and has not only reduced workman's production efficiency, has increased the probability that various industrial accidents occur, but also is hiding the possibility that coal-dust explosion occurs in the hiding, threatens mine safety production.
Summary of the invention
Goal of the invention: catch the dust, particularly respirable dust that produce in coal cutting process, reduce the harm of dust and environment healthy to workman.
Technical scheme:
Coal-winning machine negative-pressure atomizing secondary dust removing apparatus system, comprises high-pressure hydraulic pump, high-pressure rubber pipe, coal-winning machine, coal-winning machine negative-pressure atomizing secondary dust removing device; High-pressure hydraulic pump enters and is arranged on coal-winning machine negative-pressure atomizing secondary dust removing device on coal-winning machine machine side and is connected by being arranged on high-pressure rubber pipe in cable channel; High-pressure rubber pipe packs into and drags in cable clamp, by coal-winning machine, dragged together with cable, coal-winning machine negative-pressure atomizing secondary dust removing device comprises casing, inlet scoop, induced duct, valve piece, seamless steel pipe connector, on the inverted trapezoidal casing of bottom half opening, establish hole, for inlet scoop, insert and wherein and be with it fixedly connected with, induced duct position is positioned at casing, and valve piece is arranged on cabinet wall old man side, and valve piece is connected with inlet scoop.
Induced duct is that core frame forms basic framework, and the logical fixed packet of seamless steel pipe is wrapped in core frame periphery.
It is by seamless steel pipe connector that valve piece is connected with inlet scoop.
Device for reducing dust casing upper surface exceeds the fuselage of coal-winning machine slightly, but on vertical plane, does not exceed old man's side of coal-winning machine fuselage.
This invention be applied 1 water smoke piston principle, entrainmenting with three basic principles such as the affine principles of shielding principle 3 ultrafine particle of 2 high-pressure water mists is made.
Dust removal mechanism is: be positioned at the high pressure water that the high-pressure hydraulic pump in tunnel provides, through the pipeline of laying and the cable clamp moving with coal-winning machine, be transported to coal-winning machine on the way, press water separates two-way water source after threeway piece, then is connected to the union on the device for reducing dust of the left and right sides through a minute control valve.Union is connecting the valve piece of device for reducing dust inside, and valve piece is divided into corresponding Ji Lu branch feed-in induced duct by water under high pressure by the model of device for reducing dust.Water under high pressure produces water smoke piston phenomenon with the inwall of induced duct under the effect of nozzle, so there is the water smoke of high velocity jet in induced duct the place ahead, rear at induced duct just produces certain negative pressure, after the negative pressure stack that cabinets cavity produces all induced ducts, through airtight casing, is delivered to inlet scoop.The induced duct of arranging by space forms a three-dimensional covering of the fan water smoke, covers coal breakage, wall caving coal breakage region after coal mining machine roller and cut.Inlet scoop catches the dust in water smoke shielding inner side by larger negative pressure, and this part absorbed dust, along cabinets cavity to induced duct, becomes black water and sprays with water smoke under the effect of water smoke piston.
The ultra-fine droplet that water under high pressure forms rapidly and coal dust collision and affine formation black water, with current ejection landing, continuous circulation like this, thereby coal-winning machine ambient air is purified, ensure safety in production, for worker health is created good ambient conditions.
Beneficial effect: coal-winning machine negative-pressure atomizing secondary dust removing device of the present invention, is best suited for coal cutter dust reduction.On the basis of original inside and outside atomizing de-dusting, the dust concentration in coal-winning machine ambient air is reduced to 80～95%, can make dust concentration in work plane air reduce to 20～100mg/m
3below, wherein respirable dust concentration can be reduced to 10-30mg/m
3below, greatly improve the working environment of coal-face, guaranteed that workman is healthy, raised labour productivity, can stop the generation of coal-dust explosion completely.Its reliability is strong, simple in structure, and cost is low, easy to operate, safeguards simply, has practicality widely.
Accompanying drawing explanation
Fig. 1 is coal-winning machine negative-pressure atomizing secondary dust removing apparatus system;
Fig. 2 coal-winning machine negative-pressure atomizing secondary dust removing device
Number in the figure, 1. high-pressure hydraulic pump 2. high-pressure rubber pipe 3. coal-winning machine 4. coal-winning machine negative-pressure atomizing secondary dust removing device 5. casing 6. inlet scoop 7. induced duct 8. core frame 9. valve piece 10. seamless steel pipe connectors
The specific embodiment
Coal-winning machine negative-pressure atomizing secondary dust removing apparatus system, comprises high-pressure hydraulic pump 1, high-pressure rubber pipe 2, coal-winning machine 3, coal-winning machine negative-pressure atomizing secondary dust removing device 4; High-pressure hydraulic pump 1 enters and is arranged on coal-winning machine negative-pressure atomizing secondary dust removing device 4 on coal-winning machine 3 machine sides and is connected by being arranged on high-pressure rubber pipe 2 in cable channel; High-pressure rubber pipe 2 packs into and drags in cable clamp, by coal-winning machine, dragged together with cable, coal-winning machine negative-pressure atomizing secondary dust removing device 4 comprises casing 5, inlet scoop 6, induced duct 7, valve piece 9, seamless steel pipe connector 10, on the inverted trapezoidal casing 5 of bottom half opening, establish hole, for inlet scoop 2, insert and wherein and be with it fixedly connected with, induced duct position 7 is positioned at casing 5, and valve piece 9 is arranged on casing 5 inwall old man sides, and valve piece 9 is connected with inlet scoop 6.
Induced duct 7 is that core frame 8 forms basic framework, and the logical fixed packet of seamless steel pipe is wrapped in core frame 8 peripheries.
It is by seamless steel pipe connector 10 that valve piece 9 is connected with inlet scoop 6.
Device for reducing dust casing 1 upper surface exceeds the fuselage of coal-winning machine slightly, but on vertical plane, does not exceed old man's side of coal-winning machine fuselage.
Manufacturing Method of Products is as follows:
1 in smooth steel lining out blanking, welding casing.The necessary bevel continuous welding of lap-joint, weld seam is not less than 8 ㎜.After welding fabrication, the error of box shape size is not more than 1 ㎜.
2 castings are as the core frame in induced duct, and machine core frame, is mainly tapping and planar end surface on core frame, two screw threads same
Heart degree error is not more than 0.2 ㎜, and the parallelism error of both ends of the surface is not more than 0.2 ㎜, and the slightly degree of making of its section reaches 6.3.Machine is as the steel pipe of induced duct in addition, and the slightly degree of making of its inwall reaches 6.3.Again the core frame and the steel-pipe welding that process are assembled into induced duct, the centrad error of two assemblies is not more than 0.2 ㎜.
3 cut out the locus of layout induced duct on casing, and the aperture of perforate is larger than the external diameter of induced duct, at incline direction, is elliptical aperture.
4 by the angle three dimensional arrangement induced duct of design, and the horizontal or vertical angular error of all induced ducts is not more than 0.5
0and be welded on casing, guarantee that the effective length of induced duct in casing reaches drawing requirement, inside and outside two-sided welding.The redundance stretching out outside casing is comprised to surface weld mill off in the lump, and reaching box outer surface is a smooth housing.
5 make valve piece, beat and link up fabrication hole and input/output interface, tapping on interface.By fabrication hole welding plug, weld seam is not less than 6 ㎜, is completely welded and does not leak.Valve piece is installed in air draught chamber, is equipped with corresponding fittings body.Of 6 ㎜ seamless steel pipes, make by valve piece to the tube connector induced duct, one end is that hollow pipe cross one end is the movable joint of A type, warpage steel pipe makes its cross section deformation amount be not more than 30%, and weld internal modification amount is not more than 20%, and integral body is not leaked and do not stopped up in 30MPa pressure test.Seal during assembling in joint is excellent.
6 weld two hinged otic placodes on the backboard of casing, and weld seam is not less than 8 ㎜.
7 polishing casings are rejected acute angle, spray paint antirust.
8 install nozzle and outer pipe joint, are equipped with corresponding seal, and pretightning force is not leaked and is as the criterion with compacting seal.
Claims (4)
1. a coal-winning machine negative-pressure atomizing secondary dust removing device, comprises high-pressure hydraulic pump (1), high-pressure rubber pipe (2), coal-winning machine (3), coal-winning machine negative-pressure atomizing secondary dust removing device (4); High-pressure hydraulic pump (1) enters and is arranged on coal-winning machine negative-pressure atomizing secondary dust removing device (4) on coal-winning machine (3) machine side and is connected by being arranged on high-pressure rubber pipe (2) in cable channel; High-pressure rubber pipe (2) packs into and drags in cable clamp, by coal-winning machine, dragged together with cable, it is characterized in that, coal-winning machine negative-pressure atomizing secondary dust removing device (4) comprises casing (5), inlet scoop (6), induced duct (7), valve piece (9), seamless steel pipe connector (10), on the inverted trapezoidal casing (5) of bottom half opening, establish hole, for inlet scoop (2), insert and wherein and be with it fixedly connected with, induced duct position (7) is positioned at casing (5), valve piece (9) is arranged on casing (5) inwall old man side, and valve piece (9) is connected with inlet scoop (6).
2. coal-winning machine negative-pressure atomizing secondary dust removing device according to claim 1, is characterized in that, induced duct (7) is that core frame (8) forms basic framework, and the logical fixed packet of seamless steel pipe is wrapped in core frame (8) periphery.
3. coal-winning machine negative-pressure atomizing secondary dust removing device according to claim 1 and 2, is characterized in that, it is by seamless steel pipe connector (10) that valve piece (9) is connected with inlet scoop (6).
4. coal-winning machine negative-pressure atomizing secondary dust removing device according to claim 1 and 2, is characterized in that, dust collector box body (1) upper surface exceeds the fuselage of coal-winning machine slightly, but on vertical plane, does not exceed old man's side of coal-winning machine fuselage.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320623264.3U CN203515593U (en) | 2013-10-10 | 2013-10-10 | Negative-pressure atomization secondary dust-settling device for coal mining machines |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320623264.3U CN203515593U (en) | 2013-10-10 | 2013-10-10 | Negative-pressure atomization secondary dust-settling device for coal mining machines |
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| CN203515593U true CN203515593U (en) | 2014-04-02 |
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|---|---|---|---|
| CN201320623264.3U Expired - Fee Related CN203515593U (en) | 2013-10-10 | 2013-10-10 | Negative-pressure atomization secondary dust-settling device for coal mining machines |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103527239A (en) * | 2013-10-10 | 2014-01-22 | 苏州华安矿业科技有限公司 | Coal mining machine negative-pressure atomization secondary dust falling device |
| CN104594897A (en) * | 2014-12-16 | 2015-05-06 | 苏州华安矿业科技有限公司 | Negative pressure atomization secondary dust-settling device of coal mining machine |
| CN105089667A (en) * | 2014-05-08 | 2015-11-25 | 陕西陕煤黄陵矿业有限公司 | Thin coal seam intelligent coal mining technology |
| CN111173509A (en) * | 2020-01-20 | 2020-05-19 | 北京中矿兴宝环保科技有限公司 | Method for preventing and treating coal dust from caving in large mining height |
-
2013
- 2013-10-10 CN CN201320623264.3U patent/CN203515593U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103527239A (en) * | 2013-10-10 | 2014-01-22 | 苏州华安矿业科技有限公司 | Coal mining machine negative-pressure atomization secondary dust falling device |
| CN103527239B (en) * | 2013-10-10 | 2015-09-23 | 苏州华安矿业科技有限公司 | The manufacture method of coal-winning machine negative-pressure atomizing secondary dust removing device |
| CN105089667A (en) * | 2014-05-08 | 2015-11-25 | 陕西陕煤黄陵矿业有限公司 | Thin coal seam intelligent coal mining technology |
| CN104594897A (en) * | 2014-12-16 | 2015-05-06 | 苏州华安矿业科技有限公司 | Negative pressure atomization secondary dust-settling device of coal mining machine |
| CN111173509A (en) * | 2020-01-20 | 2020-05-19 | 北京中矿兴宝环保科技有限公司 | Method for preventing and treating coal dust from caving in large mining height |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140402 Termination date: 20181010 |