External spraying device of coal mining machine
By designing the spray and collection mechanism of the external spray device of the coal miner, the problem of moisture adhesion and inflow of dust during the dust reduction process is solved, and better cleaning effect and equipment life are achieved.
Patent Information
- Application Number
- CN202421874334.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-02
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-08-02
AI Technical Summary
During the dust reduction process of existing coal mining machines, the dust absorbs water mist and falls wet, making it easy to stick to the coal mining machine, which is difficult to clean in the later stage, and the wet dust may flow into the coal mining machine, affecting the equipment life.
An external spray device of coal mining machine is designed, including a base, a water tank, a spray mechanism and a collection mechanism. The spraying mechanism sprays water out through a water pump to form water mist to reduce dust; the collection mechanism absorbs and collects damp dust through negative pressure and filter layer to prevent it from adhering to the coal mining machine.
It effectively avoids the adhesion and inflow of damp dust, and improves the cleaning convenience and equipment life of the coal miner.
Smart Images
Figure CN223018612U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of coal mining dust removal, and more specifically, to an external spray device for a coal shearer. Background Art
[0002] The coal shearer is one of the important devices for realizing the mechanization and modernization of coal mine production. The coal shearer achieves the purpose of collection by cutting or drilling coal. A large amount of dust often floats out at the front end of the collection work due to cutting and drilling. It is necessary to install a spray device on the front shell of the coal shearer to reduce the dust generated during coal mining.
[0003] The prior art document with the publication number CN216767383U provides an external spray device for a coal shearer, including a bearing seat and a water storage tank. An installation groove is opened in the bearing seat. A servo motor is fixedly installed in the middle of the lower surface of the bearing seat. The output end of the servo motor is connected to a transmission shaft rod. The transmission shaft rod is perpendicular to the middle of the lower surface of the inner wall of the installation groove, and a bearing plate is horizontally fixedly installed at the top of the transmission shaft rod. In this utility model, water in the water storage tank is pumped out by a water pump, conveyed to a shunt pipe through a water delivery pipe, and then sprayed out through an atomizing nozzle for spray dust reduction. The servo motor drives the bearing plate to rotate through the transmission shaft rod. The atomizing nozzles on the shunt pipe rotate with the rotation of the bearing plate, increasing the spraying range and performing omnidirectional spray dust reduction. And through the filter screen in the water inlet, in rainy weather, when the box cover is opened, the filter screen plays a filtering role to prevent sundries from falling into the water storage tank, and rainwater is collected through the water inlet, which is relatively practical.
[0004] Although the above prior art solution can achieve relevant beneficial effects through the structure of the prior art, there are still the following defects:
[0005] When the device is installed on the coal shearer and spray dust reduction is carried out, the dust will become wet and fall off after adsorbing the water mist. Falling on the coal shearer will cause it to adhere firmly, making it difficult to clean later. And the accumulated wet dust will flow due to the long-term accumulation of water droplets, easily flowing into the interior of the coal shearer through the gaps in the outer shell of the coal shearer, making it even more difficult to clean and affecting the service life of the coal shearer.
[0006] Regarding the above related technology, the utility model person believes that when the device is installed on the coal shearer and spray dust reduction is carried out, the dust will become wet and fall off after adsorbing the water mist. Falling on the coal shearer will cause it to adhere firmly, making it difficult to clean later. And the accumulated wet dust will flow due to the long-term accumulation of water droplets, easily flowing into the interior of the coal shearer through the gaps in the outer shell of the coal shearer, making it even more difficult to clean and affecting the service life of the coal shearer.
[0007] In view of this, we propose an external spray device for a coal shearer. Summary of the Utility Model
[0008] 1. Technical Problems to be Solved
[0009] The purpose of this application is to provide an external spray device for a shearer, which solves the technical problems in the above-mentioned background art. When the device is installed on the shearer and dust is reduced by spraying, the dust will be moist and fall off after adsorbing the water mist. If it falls on the shearer, it will adhere firmly, making it difficult to clean later. Moreover, the accumulated moist dust will flow after a long time of water droplet accumulation, easily flowing into the interior of the shearer through the gaps in the shearer's outer shell, making it even more difficult to clean and affecting the life of the shearer, achieving the technical effect.
[0010] 2. Technical solution
[0011] The technical solution of this application provides an external spray device for a shearer, including:
[0012] A base, which is installed on the shearer;
[0013] A water tank, which is fixedly installed on one side of the top of the base;
[0014] A spray mechanism, which is installed on the top of the water tank;
[0015] A collection box, which is fixedly installed on the other side of the top of the base, and the collection box is located at the bottom of the spray mechanism;
[0016] A collection mechanism, which is installed in the collection box.
[0017] Through the above solution, the base is installed on the front outer shell of the shearer by bolts. Water is stored in the water tank, and water mist is generated by the spray mechanism to reduce dust at the coal mining site. Moreover, the dust adsorbed with water mist is adsorbed into the collection box by the negative pressure generated by the collection mechanism for collection, avoiding moist dust from adhering to the shearer and preventing water droplets from flowing into the interior of the shearer.
[0018] Optionally, connection feet are fixedly installed at the four corners of the base, and the connection feet are connected to the shearer by bolts. A water filling port is provided at the top of the water tank, and a drain pipe is fixedly sleeved on the outer wall of the bottom of the water tank.
[0019] Optionally, the spray mechanism includes a fixed pipe. The fixed pipe is fixedly installed on the top of one side of the water tank close to the collection box. A horizontal pipe is fixedly sleeved on the top of the fixed pipe. A plurality of nozzles are fixedly installed on the side of the horizontal pipe close to the collection box. A water pump is fixedly installed on the top of the water tank. The inlet end and the outlet end of the water pump are respectively connected to the bottom inner cavity of the water tank and the fixed pipe through pipelines.
[0020] Through the above solution, the water pump extracts water from the water tank and sprays it out from the nozzles through the fixed pipe and the horizontal pipe to form water mist, achieving the purpose of humidifying and reducing dust for the dust.
[0021] Optionally, the collecting mechanism includes a driving roller. The driving rollers are rotatably sleeved on both sides of the inner cavity top of the collecting box. A driving belt is sleeved on the driving rollers. A filter layer is fixedly attached to the outer wall of the driving belt. A fixed box is fixedly installed between the inner walls of the collecting box at the inner cavity of the driving belt. A motor and an air extraction pump are fixedly installed on the outer wall of the collecting box. The air extraction pump is connected to the fixed box through a pipeline. The output shaft of the motor is fixedly connected to one of the driving rollers. A plurality of scraping plates are fixedly installed between the inner walls of the collecting box. The scraping plates are closely attached to the filter layer at the bottom of the descending belt of the driving belt. A sealing door is installed at the bottom of the side wall of the collecting box. The fixed box is closely attached to the bottom of the ascending belt of the driving belt. The filter layer is multiple layers of filter cloth. The scraping plates are of an inclined structure.
[0022] Through the above solution, the fixed box is attached to the bottom of the ascending belt of the driving belt. Then, the air extraction pump extracts air through the fixed box, the ascending belt of the driving belt and the filter layer, so that the wet dust is negatively pressured and adsorbed onto the filter layer on the top of the fixed box. The wet dust is adhered by the filter layer. The motor drives the driving roller to rotate, so that the driving belt drives the filter layer to move. Then, the wet dust is scraped off when passing through the scraping plates, and is tightly scraped by multiple scraping plates to squeeze out the water adsorbed in the filter layer. The dust and water fall into the bottom of the collecting box for storage. The filter layer with the water squeezed out is convenient to move to the top of the fixed box to adhere to the wet dust again. In this way, continuous collection of the wet dust is achieved, and the wet dust is prevented from adhering to the coal mining machine.
[0023] 3. Beneficial effects
[0024] One or more technical solutions provided in the technical solution of the present application have at least the following technical effects or advantages:
[0025] In the technical solution of the present application, since the fixed box is attached to the bottom of the ascending belt of the driving belt, the air extraction pump extracts air through the fixed box, the ascending belt of the driving belt and the filter layer, so that the wet dust is negatively pressured and adsorbed onto the filter layer on the top of the fixed box. The wet dust is adhered by the filter layer. The motor drives the driving roller to rotate, so that the driving belt drives the filter layer to move. Then, the wet dust is scraped off when passing through the scraping plates, and is tightly scraped by multiple scraping plates to squeeze out the water adsorbed in the filter layer. The dust and water fall into the bottom of the collecting box for storage. The filter layer with the water squeezed out is convenient to move to the top of the fixed box to adhere to the wet dust again. In this way, continuous collection of the wet dust is achieved, and the wet dust is prevented from adhering to the coal mining machine. Description of the drawings
[0026] Figure 1 It is a schematic structural diagram of an external spray device of a coal mining machine disclosed in a preferred embodiment of the present application;
[0027] Figure 2 Disclosed in a preferred embodiment of the present application Figure 1 The enlarged schematic diagram at A in
[0028] Figure 3 Structural schematic diagram of the fixed box disclosed in a preferred embodiment of the present application;
[0029] Explanation of reference numerals in the figure: 1, base; 2, water tank; 3, spraying mechanism; 31, water pump; 32, fixed pipe; 33, horizontal pipe; 34, nozzle; 4, collection box; 5, collection mechanism; 51, driving roller; 52, transmission belt; 53, filter layer; 54, fixed box; 55, air extraction pump; 56, motor; 57, scraper; 58, sealing door Detailed implementation manners
[0030] The present application will be further described in detail below with reference to the accompanying drawings of the specification.
[0031] Refer to Figure 1 , an external spraying device for a shearer provided by an embodiment of the present application includes: a base 1, the base 1 is installed on the shearer; a water tank 2, a water tank 2 is fixedly installed on one side of the top of the base 1; a spraying mechanism 3, a spraying mechanism 3 is installed on the top of the water tank 2; a collection box 4, a collection box 4 is fixedly installed on the other side of the top of the base 1, and the collection box 4 is located at the bottom of the spraying mechanism 3; a collection mechanism 5, a collection mechanism 5 is installed in the collection box 4, the base 1 is installed on the front end housing of the shearer through bolts, water is stored in the water tank 2, water mist is generated by the spraying mechanism 3 to reduce dust at the coal mining site, and after the dust adsorbs the water mist, it is adsorbed into the collection box 4 by the negative pressure generated by the collection mechanism 5 for collection, so as to prevent wet dust from adhering to the shearer and prevent water droplets from flowing into the interior of the shearer.
[0032] Refer to Figure 1 , connection feet are fixedly installed at the four corners of the base 1, and the connection feet are connected to the shearer through bolts. A water filling port is provided at the top of the water tank 2, and a drain pipe is fixedly sleeved on the outer wall of the bottom of the water tank 2. The connection feet at the four corners of the base 1 facilitate the connection to the shearer, and the water filling port and the drain pipe facilitate the addition and drainage of water in the water tank 2.
[0033] Refer to Figure 1 , the spraying mechanism 3 includes a fixed pipe 32, a fixed pipe 32 is fixedly installed on the top of one side of the water tank 2 close to the collection box 4, a horizontal pipe 33 is fixedly sleeved on the top of the fixed pipe 32, a plurality of nozzles 34 are fixedly installed on the side of the horizontal pipe 33 close to the collection box 4, a water pump 31 is fixedly installed on the top of the water tank 2, and the inlet end and the outlet end of the water pump 31 are respectively connected to the bottom cavity of the water tank 2 and the fixed pipe 32 through pipelines. The water pump 31 pumps the water in the water tank 2 and sprays it out from a plurality of nozzles 34 through the fixed pipe 32 and the horizontal pipe 33 to form water mist, so as to achieve the purpose of humidifying and reducing dust for the dust.
[0034] Refer to Figures 1 to 3, the collecting mechanism 5 includes a driving roller 51. The driving rollers 51 are rotatably sleeved on both sides of the top of the inner cavity of the collecting box 4. A driving belt 52 is sleeved on the driving roller 51. A filter layer 53 is fixedly attached to the outer wall of the driving belt 52. A fixed box 54 is fixedly installed between the inner walls of the collecting box 4 at the inner cavity of the driving belt 52. A motor 56 and an air extraction pump 55 are fixedly installed on the outer wall of the collecting box 4. The air extraction pump 55 is connected to the fixed box 54 through a pipeline. The output shaft of the motor 56 is fixedly connected to one of the driving rollers 51. A plurality of scraping plates 57 are fixedly installed between the inner walls of the collecting box 4. The scraping plates 57 are in close contact with the filter layer 53 at the bottom of the descending belt of the driving belt 52. A sealing door 58 is installed at the bottom of the side wall of the collecting box 4. The fixed box 54 is in close contact with the bottom of the ascending belt of the driving belt 52. The filter layer 53 is a multi-layer filter cloth. The scraping plates 57 are of an inclined structure. Since the fixed box 54 is attached to the bottom of the ascending belt of the driving belt 52, the air extraction pump 55 extracts air through the fixed box 54, the ascending belt of the driving belt 52 and the filter layer 53, so that the wet dust is negatively adsorbed onto the filter layer 53 at the top of the fixed box 54. The wet dust is adhered by the filter layer 53. The motor 56 drives the driving roller 51 to rotate, so that the driving belt 52 drives the filter layer 53 to move. Then, when the wet dust passes through the scraping plates 57, it is scraped off, and is tightly scraped by a plurality of scraping plates 57 to squeeze out the water adsorbed in the filter layer 53. The dust and water fall into the bottom of the collecting box 4 for storage. The filter layer 53 with the water squeezed out is convenient to move to the top of the fixed box 54 to adhere to the wet dust again. In this way, continuous collection of the wet dust is achieved, and the wet dust is prevented from adhering to the coal mining machine.
[0035] Working principle: The water pump 31 pumps the water in the water tank 2, and sprays it out from a plurality of nozzles 34 through the fixed pipe 32 and the cross pipe 33 to form a water mist, so as to achieve the purpose of humidifying and dust suppressing the dust. Since the fixed box 54 is attached to the bottom of the ascending belt of the driving belt 52, the air extraction pump 55 extracts air through the fixed box 54, the ascending belt of the driving belt 52 and the filter layer 53, so that the wet dust is negatively adsorbed onto the filter layer 53 at the top of the fixed box 54. The wet dust is adhered by the filter layer 53. The motor 56 drives the driving roller 51 to rotate, so that the driving belt 52 drives the filter layer 53 to move. Then, when the wet dust passes through the scraping plates 57, it is scraped off, and is tightly scraped by a plurality of scraping plates 57 to squeeze out the water adsorbed in the filter layer 53. The dust and water fall into the bottom of the collecting box 4 for storage. The filter layer 53 with the water squeezed out is convenient to move to the top of the fixed box 54 to adhere to the wet dust again. In this way, continuous collection of the wet dust is achieved, and the wet dust is prevented from adhering to the coal mining machine.
Claims
1. A coal mining machine external spray device, characterized in that: Include: A base (1), wherein the base (1) is mounted on a coal mining machine; A water tank (2), the water tank (2) being fixedly mounted on one side of the top of the base (1); A spray mechanism (3), wherein the top of the water tank (2) is provided with a spray mechanism (3); A collecting box (4), the collecting box (4) is fixedly mounted on the other side of the top of the base (1), and the collecting box (4) is located at the bottom of the spray mechanism (3); A collecting mechanism (5), wherein the collecting box (4) is provided with a collecting mechanism (5).
2. The external spray device of a coal mining machine according to claim 1, characterized in that: Connecting feet are fixedly installed at the four corners of the base (1), and the connecting feet are connected to the coal mining machine through bolts. A water inlet is provided on the top of the water tank (2), and a drainage pipe is fixedly sleeved on the bottom outer wall of the water tank (2).
3. The external spray device of a coal mining machine according to claim 1, characterized in that: The spray mechanism (3) comprises a fixed pipe (32), the fixed pipe (32) being fixedly mounted on the top of a side of the water tank (2) close to the collecting box (4), a transverse pipe (33) being fixedly sleeved on the top of the fixed pipe (32), a plurality of spray heads (34) being fixedly mounted on the side of the transverse pipe (33) close to the collecting box (4), a water pump (31) being fixedly mounted on the top of the water tank (2), the inlet end and the outlet end of the water pump (31) being respectively connected to the bottom of the inner cavity of the water tank (2) and the fixed pipe (32) through pipelines.
4. The external spray device of a coal mining machine according to claim 3, characterized in that: The collecting mechanism (5) comprises a driving roller (51), driving rollers (51) are rotatably sleeved on both sides of the top of the inner cavity of the collecting box (4), a driving belt (52) is rotatably sleeved on the driving roller (51), a filter layer (53) is fixedly attached to the outer wall of the driving belt (52), a fixing box (54) is fixedly installed between the inner walls of the collecting box (4) at the inner cavity of the driving belt (52), a motor (56) and an air pump (55) are fixedly installed on the outer wall of the collecting box (4), the air pump (55) is connected to the fixing box (54) through a pipeline, the output shaft of the motor (56) is fixedly connected to a driving roller (51), a plurality of scrapers (57) are fixedly installed between the inner walls of the collecting box (4), and the scrapers (57) are tightly fitted to the filter layer (53) at the bottom of the downward belt of the driving belt (52).
5. The external spray device of a coal mining machine according to claim 4, characterized in that: A sealing door (58) is installed at the bottom of the side wall of the collecting box (4), the fixing box (54) is tightly fitted to the bottom of the upward belt of the transmission belt (52), the filtering layer (53) is a multi-layer filter cloth, and the scraper (57) is an inclined structure.