Pneumatic coal dressing auxiliary dust removal device

Abstract

The utility model discloses a pneumatic coal dressing auxiliary dust removal device which comprises pneumatic coal dressing equipment, and auxiliary dust removal devices are installed at the left end and the right end of the rear side of the pneumatic coal dressing equipment. According to the coal dust removal device, dust can be effectively removed from coal ash in the wind power coal dressing process by installing the auxiliary dust removal device, the good operation environment and the health of operators are ensured, water in the water storage ring can be atomized and sprayed out by arranging the atomization nozzle, then dust removal treatment can be carried out on the passing coal ash, and the dust removal efficiency is improved. Dust particles in coal ash can be rapidly adsorbed, water drops carrying the dust particles gradually settle to an annular plate and enter a recycling ring through a first through hole and a second through hole, a filter screen and a filter membrane arranged in the recycling ring can filter sewage, the sewage returns to a water storage ring through a water conveying pipe and a water pump to be recycled, and water resources are saved; and the bottom plate, the filter screen and the filter membrane are mounted through bolts and are convenient to disassemble and replace.

Description

Technical Field

[0001] The utility model relates to the technical field of wind coal separation, in particular to an auxiliary dust removal device for wind coal separation. Background Art

[0002] Wind coal separation is a method that uses air as a separation medium to screen the quality of coal by wind force. This method mainly relies on the weight of the coal to judge its quality. Wind is generated by equipment and the quality of the coal is screened based on the wind force. However, a large amount of dust is generated during the wind coal separation process. If this dust is not handled in time, it will not only pollute the environment, but may also cause harm to the health of the equipment and operators. Therefore, auxiliary dust removal devices can be used during the wind coal separation process to effectively reduce the amount of coal ash contamination in the surrounding air.

[0003] The patent document proposed in the prior art has the announcement number CN220559768U. The technical solution disclosed in this patent document is as follows: a wind-powered dust removal coal preparation equipment, relating to the technical field of coal preparation equipment, including a device body, a pneumatic rod, a guide slope, a screen plate and a collection trough. A first discharge port is provided on one side of the device body, a second discharge port is provided on the other side of the device body, and a third discharge port is provided below the second discharge port. A guide slope is provided at the bottom end of the device body. When the device is in use, the dust inside the device body is transported to the collection trough by an air pump. After the dust-containing particles enter the collection trough, they will spiral downward along the inner wall under the action of gravity and centrifugal force, so that the dust can be discharged through the dust outlet.

[0004] The above technical solution discharges dust through the collection trough under the action of gravity and centrifugation, and the dust-removed air is discharged through the exhaust device, but some mixed small particles are still discharged upward through the discharge device, which has a poor dust removal and dust reduction effect. Utility Model Content

[0005] The purpose of the utility model is to provide a wind-powered coal preparation auxiliary dust removal device to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above purpose, the utility model provides the following technical solutions: a wind-powered coal preparation auxiliary dust removal device, comprising wind-powered coal preparation equipment, wherein auxiliary dust removal devices are installed at both left and right ends of the rear side of the wind-powered coal preparation equipment.

[0007] The auxiliary dust removal device includes a pre-filtering assembly, which is connected to the wind coal preparation equipment. The rear side of the pre-filtering assembly is bolted with a dust removal connecting pipe. The outer wall of the dust removal connecting pipe near the outlet end is bolted with a coal ash dust removal assembly. The coal ash dust removal assembly also includes a water storage ring. Atomizing nozzles are arranged on the inner side of the water storage ring. The atomizing nozzles pass through the dust removal connecting pipe and are located on the inner wall of the dust removal connecting pipe. A recovery ring is bolted on the outer surface of the dust removal connecting pipe. A water supply pipe is provided between the recovery ring and the water storage ring, and a water pump is provided on the water supply pipe.

[0008] In the above technical solution, an atomizing nozzle is set up to atomize and spray the water inside the water storage ring, thereby being able to perform dust reduction treatment on the passing coal ash, and can quickly absorb the dust particles in the coal ash. The water droplets carrying the dust particles will gradually settle to the annular plate, and enter the recovery ring through hole one and hole two, and return to the water storage ring through the water pipe and water pump for recycling, saving water resources.

[0009] As a further preferred embodiment of the present technical solution, the pre-filtration component includes a filter box, a filter screen is slidably connected to the middle of the filter box, a T-shaped slide groove is opened on the left and right ends of the bottom side of the filter box, and a collection frame is slidably connected in the T-shaped slide groove.

[0010] In the above technical solution, the coal ash is filtered through the filter screen to reduce large particle impurities, and the filter screen adopts a sliding installation method, which is convenient for extraction and cleaning. The set collection frame can collect the filtered particulate impurities, and the collection frame also adopts a sliding installation method for easy dumping.

[0011] As a further preferred embodiment of the present technical solution, the outlet end of the dust removal connecting pipe is fixedly connected to a ring plate, a through hole 1 is arranged on the ring plate, a through hole 2 is arranged on the top side of the recovery ring, and the through hole 2 is aligned with the through hole 1.

[0012] As a further preferred embodiment of the present technical solution, a ventilation groove is fixedly connected to the upper end of the annular plate, and a guide cone is fixedly connected to the top side of the ventilation groove.

[0013] In the above technical solution, the guide cone is provided so that the water droplets carrying dust particles fall on the annular plate and enter the recovery ring through the first and second holes.

[0014] As a further preferred embodiment of the present technical solution, an exhaust pipe is provided on the bottom side of the annular plate, and an air suction fan is installed in the exhaust pipe.

[0015] As a further preferred embodiment of the present technical solution, the bottom side of the recovery ring is bolted to a bottom plate, the inner side of the recovery ring is bolted to a filter screen, and a filter membrane is provided on the bottom side of the filter screen.

[0016] In the above technical solution, the filter screen and filter membrane arranged in the recovery loop can filter the sewage so that the sewage can be recycled.

[0017] As a further preferred embodiment of the present technical solution, a connecting pipe is provided on one side of the water storage ring and the recovery ring, and the connecting pipe on the water storage ring is connected to an external water tank.

[0018] The utility model provides a wind-powered coal separation auxiliary dust removal device, which has the following beneficial effects:

[0019] (1) The utility model can effectively reduce the dust of coal ash in the wind coal selection process by installing an auxiliary dust removal device, ensuring a good operating environment and the health of operators. The suction fan provided can suck in the raised coal ash and can filter the coal ash through the filter plate in advance to reduce large particles of impurities. The filter plate adopts a sliding installation method, which is convenient for extraction and cleaning. The collection frame provided can collect the filtered particulate impurities, and the collection frame also adopts a sliding installation method for easy dumping.

[0020] (2) The utility model can spray out the water inside the water storage ring by setting an atomizing nozzle, thereby being able to carry out dust reduction treatment on the coal ash passing through, and can quickly absorb the dust particles in the coal ash. The water droplets carrying the dust particles will gradually settle on the annular plate and enter the recovery ring through the through hole 1 and the through hole 2. The filter screen and filter membrane set in the recovery ring can filter the sewage and return it to the water storage ring through the water pipe and water pump for recycling, thereby saving water resources. The bottom plate, filter screen and filter membrane are installed with bolts, which is convenient for disassembly and replacement. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 This is a schematic diagram of the structure of the auxiliary dust removal device of the utility model;

[0023] Figure 3 This is a schematic diagram of the structure of the coal ash dust removal component of the utility model;

[0024] Figure 4 This is a schematic diagram of the structure inside the dust removal connecting pipe of the utility model;

[0025] Figure 5 It is an enlarged view of Figure A of the present utility model;

[0026] In the figure: 1. Wind coal preparation equipment; 2. Auxiliary dust removal device; 21. Pre-filter assembly; 22. Dust removal connecting pipe; 23. Exhaust pipe; 24. Suction fan; 211. Filter box; 212. Filter screen plate; 213. T-shaped slide; 214. Collection frame; 221. Ring plate; 222. Through hole 1; 223. Circular frame; 224. Ventilation slot; 225. Guide cone; 25. Coal ash dust removal assembly; 251. Water storage ring; 252. Connecting pipe; 253. Atomizing nozzle; 254. Recovery ring; 2541. Bottom plate; 255. Through hole 2; 256. Filter screen; 257. Filter membrane; 258. Water pipe; 259. Water pump. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0028] The utility model provides a technical solution: Figure 1 As shown, in this embodiment, a wind coal preparation auxiliary dust removal device includes a wind coal preparation device 1, and auxiliary dust removal devices 2 are installed on the left and right ends of the rear side of the wind coal preparation device 1. By installing the auxiliary dust removal device 2, the coal ash in the wind coal preparation process can be effectively reduced to ensure a good operating environment and the health of the operators.

[0029] like Figure 2 、 Figure 3 and Figure 4As shown, the auxiliary dust removal device 2 includes a pre-filtering component 21, which is connected to the wind coal preparation equipment 1. The rear side of the pre-filtering component 21 is bolted with a dust removal connecting pipe 22. The outer wall of the dust removal connecting pipe 22 near the outlet end is bolted with a coal ash dust removal component 25. The coal ash dust removal component 25 also includes a water storage ring 251. Atomizing nozzles 253 are arranged inside the water storage ring 251. The atomizing nozzles 253 pass through the dust removal connecting pipe 22 and are located on the inner wall of the dust removal connecting pipe 22. The outer surface of the dust removal connecting pipe 22 is bolted. The bolt is connected to a recovery ring 254, a water pipe 258 is provided between the recovery ring 254 and the water storage ring 251, a water pump 259 is provided on the water pipe 258, the outlet end of the dust removal connecting pipe 22 is fixedly connected to an annular plate 221, a through hole 1 222 is arranged on the annular plate 221, a through hole 255 is arranged on the top side of the recovery ring 254, and the through hole 255 is aligned with the through hole 1 222. The upper end of the annular plate 221 is fixedly connected to a ventilation slot 224, and the top side of the ventilation slot 224 is fixedly connected to a guide cone 225. An exhaust pipe 23 is provided on the bottom side of the plate 221, and an air suction fan 24 is installed in the exhaust pipe 23. The bottom side of the recovery ring 254 is bolted to the bottom plate 2541, and the inner side of the recovery ring 254 is bolted to the filter 256. A filter membrane 257 is provided on the bottom side of the filter 256. A connecting pipe 252 is provided on one side of the water storage ring 251 and the recovery ring 254. The connecting pipe 252 on the water storage ring 251 is connected to the external water tank. By setting an atomizing nozzle 253, the water inside the water storage ring 251 can be atomized and sprayed out, thereby being able to pass through The fly ash is subjected to dust reduction treatment, which can quickly absorb the dust particles in the fly ash. The water droplets carrying the dust particles will gradually settle to the annular plate 221 and enter the recovery ring 254 through the through hole 1 222 and the through hole 2 255. The filter screen 256 and the filter membrane 257 arranged in the recovery ring can filter the sewage and return it to the water storage ring 251 for recycling through the water pipe 258 and the water pump 259, thereby saving water resources. The bottom plate 1541, the filter screen 256 and the filter membrane 257 are installed with bolts, which are convenient for disassembly and replacement.

[0030] like Figure 2 and Figure 5 As shown, the pre-filtration component 21 includes a filter box 211, and a filter screen plate 212 is slidably connected to the middle of the filter box 211. T-shaped slide grooves 213 are provided on the left and right ends of the bottom side of the filter box 211. A collection frame 214 is slidably connected in the T-shaped slide groove 213. The provided suction fan 24 can suck in the raised coal ash and can filter the coal ash through the filter screen plate 212 in advance to reduce large particle impurities. The filter screen plate 212 adopts a sliding installation method, which is convenient for extraction and cleaning. The provided collection frame 214 can collect the filtered particulate impurities, and the collection frame 214 also adopts a sliding installation method for easy dumping.

[0031] The utility model provides a wind-powered coal separation auxiliary dust removal device, and its specific working principle is as follows: during the wind-powered coal separation process, the suction fan 24 is arranged to suck in the raised coal ash, and can filter the coal ash through the filter plate 212 in advance, and the filtered particles are collected in 214; when the coal ash reaches the depth of 22, the atomizing nozzles 253 arranged around it can atomize and spray out the water inside the water storage ring 251, and then can perform dust reduction treatment on the passing coal ash, and can quickly absorb the dust particles in the coal ash. The water droplets carrying the dust particles will gradually settle to the annular plate 221, and enter the recovery ring 254 through the through hole 1 222 and the through hole 2 255. The filter screen 256 and the filter membrane 257 arranged in the recovery ring can filter the sewage, and return it to the water storage ring 251 for recycling through the water pipe 258 and the water pump 259; the gas can be discharged from the exhaust pipe 23 through the ventilation slot 224.

[0032] Although the embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A wind-powered coal separation auxiliary dust removal device, comprising a wind-powered coal separation device (1), characterized in that: Auxiliary dust removal devices (2) are installed at both left and right ends of the rear side of the wind-powered coal preparation equipment (1); The auxiliary dust removal device (2) includes a pre-filtering assembly (21), the pre-filtering assembly (21) is connected to the wind coal preparation equipment (1), the rear side of the pre-filtering assembly (21) is bolted with a dust removal connecting pipe (22), the outer wall of the dust removal connecting pipe (22) near the outlet end is bolted with a coal ash dust removal assembly (25), and the coal ash dust removal assembly (25) further includes a water storage ring (251), the inner side of the water storage ring (251) is provided with atomizing nozzles (253), the atomizing nozzles (253) pass through the dust removal connecting pipe (22) and are located on the inner wall of the dust removal connecting pipe (22), the outer surface of the dust removal connecting pipe (22) is bolted with a recovery ring (254), a water supply pipe (258) is provided between the recovery ring (254) and the water storage ring (251), and a water pump (259) is provided on the water supply pipe (258).

2. The wind-powered coal separation auxiliary dust removal device according to claim 1, characterized in that: The pre-filter assembly (21) comprises a filter box (211), a filter screen plate (212) being slidably connected to the middle of the filter box (211), T-shaped chutes (213) being provided at the left and right ends of the bottom side of the filter box (211), and a collection frame (214) being slidably connected to the inside of the T-shaped chutes (213).

3. The wind-powered coal separation auxiliary dust removal device according to claim 1, characterized in that: The outlet end of the dust removal connecting pipe (22) is fixedly connected to an annular plate (221), and a through hole (222) is arranged on the annular plate (221). A through hole (255) is arranged on the top side of the recovery ring (254), and the through hole (255) is aligned with the through hole (222).

4. The wind-powered coal separation auxiliary dust removal device according to claim 3, characterized in that: The upper end of the annular plate (221) is fixedly connected to a ventilation slot (224), and the top side of the ventilation slot (224) is fixedly connected to a guide cone (225).

5. The wind-powered coal separation auxiliary dust removal device according to claim 3, characterized in that: An exhaust pipe (23) is provided on the bottom side of the annular plate (221), and an air suction fan (24) is installed in the exhaust pipe (23).

6. The wind-powered coal separation auxiliary dust removal device according to claim 1, characterized in that: The bottom side of the recovery ring (254) is bolted to a bottom plate (2541), the inner side of the recovery ring (254) is bolted to a filter screen (256), and the bottom side of the filter screen (256) is provided with a filter membrane (257).

7. The wind-powered coal separation auxiliary dust removal device according to claim 1, characterized in that: A connecting pipe (252) is provided on one side of the water storage ring (251) and the recovery ring (254), and the connecting pipe (252) on the water storage ring (251) is connected to an external water tank.

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