Dustproof structure for coal mine screening equipment

Abstract

The utility model provides a dustproof structure for coal mine screening equipment, and belongs to the technical field of coal mine screening. The dustproof structure for the coal mine screening equipment comprises a cleaning assembly and a dust removal assembly, a first screen and a second screen can improve the screening precision, a motor can drive two screws to rotate, and the screws rotate to drive two scraper pieces to move on the surfaces of the first screen and the second screen; on one hand, coal mines attached to the surfaces of the first screen and the second screen can be cleaned, the first screen and the second screen are prevented from being blocked, on the other hand, unscreened coal mines can be pushed out of the surfaces of the first screen and the second screen, overflow of pulverized coal can be reduced through a protective cover, the pulverized coal can be absorbed in cooperation with a filter box, a draught fan and a dust suction cover, and the dust suction efficiency is improved. And a dustproof effect can be achieved, then wet sticky coal on the surfaces of the first screen and the second screen can be conveniently cleaned, meanwhile, the situation that the surrounding environment is affected by flying coal dust during coal mine screening can be prevented, and therefore the practicability is improved.

Description

Technical Field

[0001] This application relates to the field of coal mine screening technology, and more specifically, to a dustproof structure for coal mine screening equipment. Background Technology

[0002] Coal mines are areas where humans extract coal resources in coal-rich areas, generally divided into underground coal mines and open-pit coal mines. When the coal seam is far from the surface, underground tunnels are typically dug to extract the coal; this is called an underground coal mine. When the coal seam is very close to the surface, the surface soil layer is typically stripped away to extract the coal; this is called an open-pit coal mine. During coal mining, screening equipment is needed to separate coal ore of different sizes. For example, a coal mining screening device described in Chinese patent application number CN202121790686.0 includes a screening device, a base, a handle, and four square columns. The base is located at the bottom of the screening device, the handle is located at the front of the screening device, and the square columns are located on both sides of the top of the screening device. An auxiliary plate is fitted onto the surface of the square column on the top left, and a filter screen is fixedly connected to the back of the auxiliary plate. This invention utilizes a locking structure. Pulling the movable rod to the left simultaneously moves the limiting plate to the left, which in turn causes the spring to contract. Simultaneously, the limiting plate moves the top auxiliary rod to the left, which in turn moves the movable clamp to the left. This allows the filter screen to be removed. During installation, the auxiliary plate of the filter screen is placed on the surface of the square column. Then, the movable rod is released, and the spring secures the filter screen, facilitating easy filter screen replacement.

[0003] However, the above solutions still have certain drawbacks: First, the filter screen relies on gravity or mechanical vibration to passively discharge slag, which easily forms mud-like clumps when encountering wet and sticky coal, requiring frequent manual cleaning and increasing the risk of clogging. Second, open screening equipment in coal mines generates coal dust that affects the surrounding environment, thus reducing its practicality. Utility Model Content

[0004] To overcome the above shortcomings, this application provides a dustproof structure for coal mine screening equipment, aiming to improve the problems in related technologies where the filter screen relies on gravity or mechanical vibration for passive slag discharge, which easily forms mud-like clumps when encountering wet and sticky coal, requiring frequent manual cleaning and increasing the risk of clogging. Secondly, open screening equipment in coal mines causes coal dust to affect the surrounding environment during screening, thus reducing its practicality.

[0005] This application provides a dustproof structure for coal mine screening equipment, including a cleaning component and a dust removal component.

[0006] The cleaning assembly includes a screening box, a support frame, a first screen, a second screen, screws, a motor, and scrapers. The support frame is fixedly connected inside the screening box. The first screen and the second screen are both fixedly connected to one side of the support frame. Both screws are rotatably connected to the screening box. The motor is fixedly connected to one side of the screening box and is driven by both screws. Both scrapers are threadedly connected to the two screws and are in contact with the first screen and the second screen. The dust removal assembly includes a protective cover, a filter box, a fan, and a dust collection hood. The protective cover is fixedly connected to the screening box, and the filter box is fixedly connected to the protective cover. The fan is fixedly connected to one end of the filter box, and the dust collection hood is connected through to one side of the protective cover and communicates with the filter box.

[0007] In one specific implementation, a collection box is slidably connected inside the screening box, a sealing plate is fixedly connected to one side of the collection box, and a handle is fixedly connected to one side of the sealing plate.

[0008] In the above implementation process, the screened coal can be collected through the collection box, and the collection box can be easily removed from the screening box through the handle.

[0009] In one specific implementation, one end of the screening box is provided with two discharge ports corresponding to the first screen and the second screen.

[0010] In the above implementation process, a discharge port is set to facilitate the discharge of coal residues on the first and second screens.

[0011] In one specific implementation, two limiting rods are fixedly connected inside the screening box.

[0012] In the above implementation process, two limiting rods are fixedly connected inside the screening box, and the limiting rods can play a limiting role.

[0013] In one specific implementation, a first gear is fixedly connected to one end of the screw, and a second gear is fixedly connected to the output end of the motor, with the second gear meshing with the first gear.

[0014] In the above implementation process, the motor can drive the second gear to rotate, and the rotation of the second gear can drive the two first gears to rotate, thereby driving the two screws to rotate.

[0015] In one specific embodiment, the scraping component includes a screw plate, a scraper, connecting blocks, and bolts. The screw plate is threadedly connected to the screw rod and slidably connected to the limiting rod. The scraper is in contact with the screw plate. Both connecting blocks are fixedly connected to the scraper and slidably connected to the screw plate. Both bolts are threadedly connected to one side of the two connecting blocks.

[0016] In the above implementation process, the screw plate can serve as a connection, and the bolts can fix the connecting block, thereby fixing the scraper and facilitating the disassembly of the scraper.

[0017] In one specific implementation, the filter box includes a box body, a lifting plate, a first filter plate, and a second filter plate. The lifting plate is in contact with the box body, and both the first filter plate and the second filter plate are fixedly connected to the lifting plate and slidably connected to the box body.

[0018] In the above process, coal powder can be filtered through the first filter plate and the second filter plate, and the filtration effect can be improved.

[0019] Compared with the prior art, the beneficial effects of this application are as follows: Firstly, the first and second screens can screen the coal, improving the screening accuracy. Secondly, the motor drives two screws to rotate, which in turn moves two scraper components across the surfaces of the first and second screens. This cleans the coal adhering to the surfaces of the first and second screens, preventing blockage, and pushes unscreened coal off the surfaces. Furthermore, the protective cover reduces coal dust overflow, and the filter box, fan, and dust collector absorb the coal dust, preventing dust accumulation and facilitating the cleaning of wet, sticky coal from the surfaces of the first and second screens. Simultaneously, it prevents coal dust from affecting the surrounding environment during screening, thus improving practicality. Attached Figure Description

[0020] Figure 1 This is a schematic diagram of a dustproof structure for a coal mine screening equipment provided in the embodiments of this application;

[0021] Figure 2 A schematic diagram of the screening box structure provided for an embodiment of this application;

[0022] Figure 3 A schematic diagram of the scraper structure provided for an embodiment of this application;

[0023] Figure 4A schematic diagram of the filter box structure provided for an embodiment of this application.

[0024] In the diagram: 100-Cleaning component; 110-Screwing box; 111-Collection box; 112-Sealing plate; 113-Handle; 114-Discharge port; 115-Limit rod; 120-Support frame; 130-First screen; 140-Second screen; 150-Screw; 151-First gear; 160-Motor; 161-Second gear; 170-Scraper; 171-Screw plate; 172-Scraper; 173-Connecting block; 174-Bolt; 200-Dust removal component; 210-Protective cover; 220-Filter box; 221-Box body; 222-Lifting plate; 223-First filter plate; 224-Second filter plate; 230-Fan; 240-Dust suction hood. Detailed Implementation

[0025] The technical solutions in the embodiments of this application will now be described with reference to the accompanying drawings.

[0026] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, not all of them. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0027] Please see Figure 1-4 This application provides a dustproof structure for coal mine screening equipment, including a cleaning component 100 and a dust removal component 200.

[0028] Please see Figure 1-3 The cleaning assembly 100 includes a screening box 110, a support frame 120, a first screen 130, a second screen 140, screws 150, a motor 160, and a scraper 170. The support frame 120 is fixedly connected inside the screening box 110. The first screen 130 and the second screen 140 are both fixedly connected to one side of the support frame 120. Both screws 150 are rotatably connected to the screening box 110. The motor 160 is fixedly connected to one side of the screening box 110 and transmits power to both screws 150. The two scraping parts 170 are threadedly connected to the two screws 150. The two scraping parts 170 are in contact with the first screen 130 and the second screen 140. A collection box 111 is slidably connected inside the screening box 110. A sealing plate 112 is fixedly connected to one side of the collection box 111, and a handle 113 is fixedly connected to one side of the sealing plate 112. The screened coal can be collected through the collection box 111, and the collection box 111 can be easily removed from the screening box 110 through the handle 113.

[0029] In some specific implementation schemes, the screening box 110 is provided with two discharge ports 114 at one end, corresponding to the first screen 130 and the second screen 140. The discharge ports 114 facilitate the discharge of residual coal on the first screen 130 and the second screen 140. The screening box 110 is internally connected with two limiting rods 115, which can play a limiting role. One end of the screw 150 is fixedly connected with a first gear 151, and the output end of the motor 160 is fixedly connected with a second gear 161. The second gear 161 meshes with the first gear 151. The motor 160 can drive the second gear 161 to rotate. The rotation of the second gear 161 can drive the two first gears 151 to rotate, thereby driving the two screws 150 to rotate.

[0030] In some specific implementations, the scraper 170 includes a screw plate 171, a scraper 172, a connecting block 173, and bolts 174. The screw plate 171 is threadedly connected to the screw rod 150 and slidably connected to the limiting rod 115. The scraper 172 is in contact with the screw plate 171. Both connecting blocks 173 are fixedly connected to the scraper 172 and slidably connected to the screw plate 171. Both bolts 174 are threadedly connected to one side of the two connecting blocks 173. The screw plate 171 serves as a connector, and the bolts 174 fix the connecting blocks 173, thereby fixing the scraper 172 and facilitating its disassembly.

[0031] Please see Figure 1 and Figure 4 The dust removal assembly 200 includes a protective cover 210, a filter box 220, a fan 230, and a dust collection hood 240. The protective cover 210 is fixedly connected to the screening box 110, the filter box 220 is fixedly connected to the protective cover 210, the fan 230 is fixedly connected to one end of the filter box 220, and the dust collection hood 240 is connected through to one side of the protective cover 210 and communicates with the filter box 220. The protective cover 210 is provided with a feed inlet. The filter box 220 includes a box body 221, a lifting plate 222, a first filter plate 223, and a second filter plate 224. The lifting plate 222 is in contact with the box body 221. The first filter plate 223 and the second filter plate 224 are both fixedly connected to the lifting plate 222, and the first filter plate 223 and the second filter plate 224 are both slidably connected to the box body 221. The first filter plate 223 and the second filter plate 224 can filter coal powder and improve the filtration effect.

[0032] The working principle of the dustproof structure of this coal mine screening equipment is as follows: During use, coal is first screened through the first screen 130 and the second screen 140, which improves screening accuracy. The motor 160 drives the second gear 161 to rotate, which in turn drives two first gears 151, which in turn drive two screws 150. The rotation of the screws 150 drives two scrapers 172 to move across the surfaces of the first screen 130 and the second screen 140, thus removing dust adhering to the first screen. The coal ore on the surfaces of screens 130 and 140 is cleaned to prevent clogging. Unscreened coal ore can be pushed off the surfaces of screens 130 and 140. The protective cover 210 can reduce the overflow of coal dust. The filter box 220, fan 230 and dust suction cover 240 can absorb the coal dust, which can play a role in dust prevention. This makes it easier to clean the wet and sticky coal on the surfaces of screens 130 and 140. At the same time, it can prevent coal dust from affecting the surrounding environment during coal screening, thereby improving practicality.

[0033] It should be noted that the specific model and specifications of motor 160 and fan 230 need to be selected and determined according to the actual specifications of the device. The specific selection calculation method adopts the existing technology in this field, so it will not be described in detail.

[0034] The power supply and operating principle of the motor 160 and the fan 230 are clear to those skilled in the art and will not be described in detail here.

[0035] The above description is merely an embodiment of this application and is not intended to limit the scope of protection of this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the scope of protection of this application. It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0036] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A dustproof structure for coal mine screening equipment, characterized in that, include A cleaning assembly (100) includes a screening box (110), a support frame (120), a first screen (130), a second screen (140), screws (150), a motor (160), and scrapers (170). The support frame (120) is fixedly connected to the inside of the screening box (110). The first screen (130) and the second screen (140) are both fixedly connected to one side of the support frame (120). The two screws (150) are rotatably connected to the screening box (110). The motor (160) is fixedly connected to one side of the screening box (110). The motor (160) is drivenly connected to the two screws (150). The two scrapers (170) are threadedly connected to the two screws (150). The two scrapers (170) are in contact with the first screen (130) and the second screen (140). The dust removal assembly (200) includes a protective cover (210), a filter box (220), a fan (230), and a dust collection hood (240). The protective cover (210) is fixedly connected to the screening box (110), the filter box (220) is fixedly connected to the protective cover (210), the fan (230) is fixedly connected to one end of the filter box (220), and the dust collection hood (240) is connected through to one side of the protective cover (210) and communicates with the filter box (220).

2. The dustproof structure for coal mine screening equipment according to claim 1, characterized in that, The screening box (110) is slidably connected to a collection box (111), and a sealing plate (112) is fixedly connected to one side of the collection box (111). A handle (113) is fixedly connected to one side of the sealing plate (112).

3. The dustproof structure for coal mine screening equipment according to claim 1, characterized in that, The screening box (110) has two discharge ports (114) at one end, which correspond to the first screen (130) and the second screen (140).

4. The dustproof structure for coal mine screening equipment according to claim 1, characterized in that, The screening box (110) has two fixedly connected limit rods (115) inside.

5. The dustproof structure for coal mine screening equipment according to claim 1, characterized in that, One end of the screw (150) is fixedly connected to a first gear (151), and the output end of the motor (160) is fixedly connected to a second gear (161). The second gear (161) meshes with the first gear (151).

6. The dustproof structure for coal mine screening equipment according to claim 4, characterized in that, The scraping component (170) includes a screw plate (171), a scraper (172), a connecting block (173), and bolts (174). The screw plate (171) is threadedly connected to the screw rod (150), and the screw plate (171) is slidably connected to the limiting rod (115). The scraper (172) is in contact with the screw plate (171). Both connecting blocks (173) are fixedly connected to the scraper (172), and both connecting blocks (173) are slidably connected to the screw plate (171). Both bolts (174) are threadedly connected to one side of the two connecting blocks (173).

7. The dustproof structure for coal mine screening equipment according to claim 1, characterized in that, The filter box (220) includes a box body (221), a lifting plate (222), a first filter plate (223), and a second filter plate (224). The lifting plate (222) is in contact with the box body (221). The first filter plate (223) and the second filter plate (224) are both fixedly connected to the lifting plate (222), and the first filter plate (223) and the second filter plate (224) are both slidably connected to the box body (221).

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