Dry fog dust suppression device in coal conveying system

Abstract

The invention provides a dry fog dust suppression device in a coal conveying system, and relates to the field of dust suppression of the coal conveying system.The dry fog dust suppression device comprises a dust suppression water storage tank, a vaporizer and a dry fog dust suppression nozzle, the vaporizer is installed on the upper end face of the dust suppression water storage tank, and the upper end of the vaporizer is connected with the dry fog dust suppression nozzle through a two-fluid pipe set; a flushing tank chamber is welded to the upper end face of the dust suppression water storage tank, a fixing cover is buckled to the upper end of the flushing tank chamber in a sealed mode, the surface of the fixing cover is connected with a first filter screen plate and a second filter screen plate through electric push rods, water spraying holes are formed in the left inner side wall and the right inner side wall of the flushing tank chamber, and a high-pressure flushing water pipe is connected to the front end of the dust suppression water storage tank. And the high-pressure flushing water pipe is communicated with the water spraying holes in the two side walls of the flushing box chamber through a flow dividing pipe. The problem that in the prior art, when a filter plate is cleaned, the spraying operation process needs to be suspended, and consequently a dry fog dust suppression device cannot work efficiently and permanently is solved.

Description

Technical Field

[0001] The invention relates to the technical field of dust suppression in a coal conveying system, and in particular to a dry mist dust suppression device in a coal conveying system. Background Art

[0002] The dust generated by the coal transportation system will not only cause environmental pollution, accelerate equipment wear, and affect electrical insulation, but also excessive dust accumulation will cause fire accidents and explosions. In the most serious cases, it will cause workers to suffer from occupational diseases and endanger the health of workers. Therefore, dust suppression is carried out. After searching, the prior art (Announcement No.: CN202220166921.5) is a micron-level dry fog dust suppression device that can automatically adjust the spray direction. The article records that "the present invention realizes the separation of the T-shaped rod and the filter plate through the cooperation between the dry fog dust suppression device, the water storage tank, the filter plate and the limit device, and utilizes the stretching of the spring in the limit device to achieve the disassembly effect of the filter plate. At the same time, the spring is used to achieve the installation effect of the filter plate, effectively solving the problem of cleaning the filter plate. The adjustment method of the limit device simplifies the disassembly and cleaning steps of the filter plate, and avoids impurities stuck in the pores of the filter plate, causing the water flow to be unable to pass through." However, in the prior art, the spray operation process needs to be suspended when the filter plate is cleaned, which makes it difficult for the dry fog dust suppression device to work efficiently and persistently. Summary of the invention

[0003] In order to overcome the defects of the prior art, a dry mist dust suppression device in a coal transportation system is provided to solve the problem that the spray operation process needs to be suspended when cleaning the filter plate in the prior art, which makes it difficult for the dry mist dust suppression device to work efficiently and permanently.

[0004] In order to achieve the above object, a dry mist dust suppression device in a coal transportation system is provided, comprising: a dust suppression water storage tank, a vaporizer and a dry mist dust suppression nozzle. The upper end surface of the dust suppression water storage tank is equipped with a vaporizer, and the upper end of the vaporizer is connected to a dry mist dust suppression nozzle through a two-fluid pipe group. A flushing box chamber is welded on the upper end face of the dust suppression water storage tank, a fixed cover is sealed and buckled on the upper end of the flushing box chamber, the surface of the fixed cover is respectively connected to the first filter plate and the second filter plate through an electric push rod, water spray holes are provided on the left and right inner walls of the flushing box chamber, and a high-pressure flushing water pipe is connected to the front end of the dust suppression water storage tank, and the high-pressure flushing water pipe is connected to the water spray holes on the two side walls of the flushing box chamber through a diversion pipe.

[0005] Furthermore, a first filter plate and a second filter plate are inserted into the inner side of the dust suppression water storage tank; and the upper ends of the first filter plate and the second filter plate are T-shaped.

[0006] Furthermore, the T-shaped ends of the first filter plate and the second filter plate are pressed against the upper surface of the dust suppression water storage tank through a sealing gasket, and the T-shaped end surfaces of the first filter plate and the second filter plate are screwed with electric push rods.

[0007] Furthermore, a timing controller is fixed on the upper surface of the fixed cover; and the timing controller is electrically connected to two groups of timing controllers, and a waste liquid pipe is arranged on the front surface of the flushing chamber.

[0008] Furthermore, a booster pump is installed on the surface of the high-pressure flushing water pipe, and the upper end of the high-pressure flushing water pipe is connected to two groups of diversion pipes through a pipe joint; and an electric valve is installed on the surface of the diversion pipe.

[0009] Furthermore, the rear cavity wall of the dust suppression water storage tank is connected to the vaporizer through an infusion tube, and the left end of the dust suppression water storage tank is connected to a water inlet pipe.

[0010] Furthermore, the flushing box chamber, the electric push rod, the water spray hole, the high-pressure flushing water pipe and the diversion pipe constitute a self-flushing mechanism of the dust suppression water storage tank.

[0011] The beneficial effect of the present invention is that the dry mist dust suppression device in the coal transportation system of the present invention utilizes the electric push rod in the flushing box chamber to regularly and alternately pull the filter plate in the dust suppression water tank up, and transports the water in the dust suppression water tank to the water spray hole in the flushing box chamber through a high-pressure flushing water pipe, so that the water spray hole sprays and washes the filter plate currently moving up, and flushes out the impurities blocked in the filter plate holes, so as to facilitate the regular flushing of impurities in the filter plate holes in the dry mist dust suppression device, avoid clogging of impurities in the plate to hinder the filtration and circulation of water bodies, ensure the stable flow of the two fluids, reduce the frequency of shutdown for cleaning, and improve the spray dust suppression effect of the dry mist dust suppression device in the coal transportation system. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a front view structural schematic diagram of a dry mist dust suppression device in a coal transportation system according to an embodiment of the present invention.

[0013] Figure 2 It is a schematic diagram of the front cross-sectional structure of a dry mist dust suppression device in a coal transportation system according to an embodiment of the present invention.

[0014] Figure 3 It is a schematic diagram of the front cross-sectional structure of the flushing box chamber according to an embodiment of the present invention.

[0015] Figure 4 It is a schematic diagram of a partial cross-sectional structure of a flushing box chamber according to an embodiment of the present invention in a side view.

[0016] In the figure: 1. dust suppression water storage tank; 11. water inlet pipe; 12. first filter plate; 13. second filter plate; 14. sealing gasket; 2. flushing chamber; 21. timing controller; 22. waste liquid pipe; 23. electric push rod; 24. fixed cover; 25. water spray hole; 3. high-pressure flushing water pipe; 31. booster pump; 32. shunt pipe; 4. vaporizer; 41. infusion pipe; 5. dry mist dust suppression nozzle; 51. two-fluid pipe group. DETAILED DESCRIPTION

[0017] Reference Figures 1 to 4 As shown, the present invention provides a dry mist dust suppression device in a coal transportation system, comprising: a dust suppression water storage tank 1, a vaporizer 4 and a dry mist dust suppression nozzle 5. The vaporizer 4 is installed on the upper end surface of the dust suppression water storage tank 1, and the upper end of the vaporizer 4 is connected to the dry mist dust suppression nozzle 5 through a two-fluid pipe group 51. A flushing chamber 2 is welded to the upper end face of the dust suppression water storage tank 1, and a fixed cover 24 is sealed and buckled on the upper end of the flushing chamber 2. The surface of the fixed cover 24 is respectively connected to the first filter plate 12 and the second filter plate 13 through an electric push rod 23. Water spray holes 25 are provided on the left and right inner walls of the flushing chamber 2. A high-pressure flushing water pipe 3 is connected to the front end of the dust suppression water storage tank 1, and the high-pressure flushing water pipe 3 is connected to the water spray holes 25 on the two side walls of the flushing chamber 2 through a diversion pipe 32.

[0018] When the dry fog dust suppression device in the coal transportation system is turned on, the water entering the dust suppression water tank 1 is first filtered through the first filter plate 12 and the second filter plate 13 and then transported to the vaporizer 4. After passing through the vaporizer 4, the water and air are mixed in a specific proportion to form a two-fluid dry fog, and then transported to the dry fog dust suppression nozzle 5 through the two-fluid pipe group 51 for spraying, so that the dry fog contacts the dust or particulate matter in the coal transportation plant and sinks to achieve the dust suppression effect. When a group of filter plates need to be flushed, one group of filter plates is first moved up so that the moved up filter plates are on the inner side of the flushing box chamber 2, and then the booster pump 31 is controlled to transport the water filtered by the dust suppression water tank 1 through the high-pressure flushing water pipe 3 and the diversion pipe 32 to the water spray hole 25 close to one side of the filter plate, so that the high-pressure water sprayed from the water spray hole 25 flushes the impurities in the mesh of the filter plate and flushes the impurities out of the mesh. After the flushing is completed, the filter plate can be moved down.

[0019] In this embodiment, the first filter plate 12 and the second filter plate 13 are inserted into the inner side of the dust suppression water storage tank 1; and the upper ends of the first filter plate 12 and the second filter plate 13 are T-shaped. The T-shaped ends of the first filter plate 12 and the second filter plate 13 are pressed against the upper surface of the dust suppression water storage tank 1 through the sealing gasket 14, and the T-shaped end surfaces of the first filter plate 12 and the second filter plate 13 are screwed with an electric push rod 23. A timing controller 21 is fixed on the upper surface of the fixed cover 24; and the timing controller 21 is electrically connected to two groups of timing controllers 21, and a waste liquid pipe 22 is provided on the front surface of the flushing chamber 2.

[0020] As a preferred embodiment, the first filter plate 12 and the second filter plate 13 are used as filtering components of the dust suppression water storage tank 1, which facilitates filtering the incoming water and prevents the transported dry mist from clogging the dry mist dust suppression nozzle 5. The electric push rod 23 drives the first filter plate 12 and the second filter plate 13 to move up to the inner side of the flushing chamber 2 alternately at a fixed time, so as to flush the filter plates moved there. The waste liquid pipe 22 is convenient for discharging the flushed water and impurities.

[0021] In this embodiment, a booster pump 31 is installed on the surface of the high-pressure flushing water pipe 3, and two groups of diverter pipes 32 are connected to the upper end of the high-pressure flushing water pipe 3 through a pipe joint; and an electric valve is installed on the surface of the diverter pipe 32.

[0022] As a preferred embodiment, the booster pump 31 delivers the water filtered by the booster pump 31 to the spraying point of the water spray hole 25, so that the water spray hole 25 flushes the mesh surface of the upwardly moved filter plate and flushes out the impurities blocked in the holes.

[0023] In this embodiment, the rear cavity wall of the dust suppression water storage tank 1 is connected to the vaporizer 4 through a liquid infusion tube 41 , and the left end of the dust suppression water storage tank 1 is connected to a water inlet pipe 11 .

[0024] As a preferred embodiment, the infusion pipe 41 transports the filtered water in the dust suppression water tank 1 to the vaporizer 4, and the water and air are mixed in a specific ratio through the vaporizer 4 to form a two-fluid dry mist, which is then transported to the dry mist dust suppression nozzle 5 through the two-fluid pipe group 51 for spraying, so that the dry mist contacts the dust or particulate matter in the coal transportation plant and sinks, thereby achieving the dust suppression effect.

[0025] In this embodiment, the flushing tank chamber 2 , the electric push rod 23 , the water spray hole 25 , the high-pressure flushing water pipe 3 and the diversion pipe 32 constitute a self-flushing mechanism of the dust suppression water storage tank 1 .

[0026] As a preferred embodiment, the self-flushing mechanism of the dust suppression water tank 1 is convenient for regularly flushing impurities in the filter plate holes in the dry mist dust suppression device, avoiding clogging of the impurities in the plate that hinder the filtration and circulation of water, ensuring the stable flow of the two fluids, reducing the frequency of shutdown for cleaning, and improving the spray dust suppression effect of the dry mist dust suppression device in the coal transportation system.

[0027] The dry mist dust suppression device in the coal transportation system of the present invention can effectively solve the problem in the prior art that the spray operation process needs to be suspended when cleaning the filter plate, which makes it difficult for the dry mist dust suppression device to work efficiently and permanently. It is convenient to regularly flush impurities in the filter plate holes in the dry mist dust suppression device to avoid clogging of impurities in the plate that hinders the filtration and circulation of water bodies, ensure the stable flow of the two fluids, reduce the frequency of shutdown for cleaning, and improve the spray dust suppression effect of the dry mist dust suppression device in the coal transportation system. The dry mist dust suppression device is suitable for the dry mist dust suppression device in the coal transportation system.

Claims

1. A dry mist dust suppression device in a coal transportation system, comprising: A dust suppression water tank (1), a vaporizer (4) and a dry mist dust suppression nozzle (5), wherein the upper end surface of the dust suppression water tank (1) is provided with a vaporizer (4), and the upper end of the vaporizer (4) is connected to the dry mist dust suppression nozzle (5) via a two-fluid pipe group (51), characterized in that: A flushing chamber (2) is welded to the upper end surface of the dust suppression water storage tank (1), a fixed cover (24) is sealed and buckled at the upper end of the flushing chamber (2), a first filter plate (12) and a second filter plate (13) are respectively connected to the surface of the fixed cover (24) via an electric push rod (23), water spray holes (25) are provided on the left and right inner walls of the flushing chamber (2), a high-pressure flushing water pipe (3) is connected to the front end of the dust suppression water storage tank (1), and the high-pressure flushing water pipe (3) is connected to the water spray holes (25) on the two side walls of the flushing chamber (2) via a diverter pipe (32).

2. A dry mist dust suppression device in a coal transportation system according to claim 1, characterized in that: A first filter plate (12) and a second filter plate (13) are inserted into the inner side of the dust suppression water storage tank (1); and the upper ends of the first filter plate (12) and the second filter plate (13) are T-shaped.

3. A dry mist dust suppression device in a coal transportation system according to claim 2, characterized in that: The T-shaped ends of the first filter plate (12) and the second filter plate (13) are pressed against the upper surface of the dust suppression water storage tank (1) via a sealing gasket (14), and an electric push rod (23) is screwed onto the surface of the T-shaped ends of the first filter plate (12) and the second filter plate (13).

4. A dry mist dust suppression device in a coal transportation system according to claim 1, characterized in that: A timing controller (21) is fixed on the upper surface of the fixed cover (24); and the timing controller (21) is electrically connected to two groups of timing controllers (21). A waste liquid pipe (22) is provided on the front surface of the flushing chamber (2).

5. The dry mist dust suppression device in a coal transportation system according to claim 1, characterized in that: A booster pump (31) is installed on the surface of the high-pressure flushing water pipe (3); the upper end of the high-pressure flushing water pipe (3) is connected to two groups of diverter pipes (32) via a pipe joint; and an electric valve is installed on the surface of the diverter pipe (32).

6. A dry mist dust suppression device in a coal transportation system according to claim 1, characterized in that: The rear cavity wall of the dust suppression water storage tank (1) is connected to the vaporizer (4) via a liquid infusion tube (41), and the left end of the dust suppression water storage tank (1) is connected to a water inlet pipe (11).

7. The dry mist dust suppression device in a coal transportation system according to claim 1, characterized in that: The flushing tank chamber (2), the electric push rod (23), the water spray hole (25), the high-pressure flushing water pipe (3) and the diverter pipe (32) constitute a self-flushing mechanism of the dust suppression water storage tank (1).

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