A coarse slime screening device

Abstract

The utility model is suitable for the technical field of coarse slime screening, provides a kind of coarse slime screening device, including: device body, the lower hopper is installed in one side of the upper portion of device body, the inside of device body is installed with sieve box, and the bottom end of sieve box is installed with sieve plate, the lower portion of one side of sieve box is installed with side collecting box, and the outside of both ends of device body is installed with vibrating motor, scattering mechanism is installed in the inner wall of lower hopper, scattering mechanism is used to the effect of scattering of caked slime, anti-blocking mechanism is installed in the inside of one end of device body below sieve box, and the anti-blocking mechanism is used to the effect of preventing sieve plate from blocking.The coarse slime screening device provided in the scheme makes rotating rod rotate by the work of first driving motor, so that multiple scattering rods rotate simultaneously, the coal slime blocks in the lower hopper are scattered by the rotation of scattering rod, and the screening efficiency is improved.

Description

Technical Field

[0001] This utility model relates to the field of coarse coal slime screening technology, specifically a coarse coal slime screening device. Background Technology

[0002] Coarse coal slime screening is a crucial and core step in coal preparation plant processes. Through efficient screening and subsequent separation processes, it is possible to recover the clean coal from both coarse and fine particles to the maximum extent, reducing the loss of coal resources in tailings. However, existing coarse coal slime screening devices have several drawbacks. They lack anti-clogging capabilities and rely solely on the overall vibration force generated by the main vibration, which is often insufficient to overcome the adhesion between coal slime particles and the screen. The energy of the main vibration is dispersed across the entire screen surface, and the force transmitted to each screen hole is insufficient to dislodge the highly adhesive fine slime, leading to screen blockage. This disrupts the stable production process and causes fluctuations in product quality. Furthermore, the lack of a dispersing structure allows for direct screening of coal slime lumps, affecting screening efficiency. In light of these issues, this project was developed through in-depth research. Utility Model Content

[0003] This invention provides a coarse coal slime screening device, which aims to solve the problem that currently used coarse coal slime screening devices do not have anti-clogging and anti-dispersing functions.

[0004] This utility model is implemented as follows: a coarse coal slime screening device includes: a device body; a control panel fixedly installed on the lower part of one side of the outer wall of the device body; a feeding hopper installed on one side of the upper part of the device body; a lower collection box connected to the lower part of the device body; a screen box installed on the inner side of the device body, with a screen plate installed at the bottom of the screen box; a side collection box installed on the lower part of one side of the screen box; and vibration motors installed on the outer sides of both ends of the device body; a dispersing mechanism installed on the inner wall of the feeding hopper, the dispersing mechanism being used to disperse clumps of coal slime; and an anti-blocking mechanism installed inside one end of the device body below the screen box, the anti-blocking mechanism being used to prevent the screen plate from clogging.

[0005] Preferably, the dispersing mechanism includes: a rotating rod installed on the inner wall of the hopper, a first drive motor installed on the outer wall of one side of the hopper, and the output end of the first drive motor connected to one end of the rotating rod through a drive shaft, and dispersing rods are evenly installed on the outer wall of the rotating rod.

[0006] Preferably, the anti-blocking mechanism includes: a servo motor installed inside one end of the device body below the sieve box, the output end of the servo motor being connected to a lead screw via a drive shaft, a movable sleeve being threaded onto the outer wall of the lead screw, and a brush being connected to one end of the movable sleeve.

[0007] Preferably, a limiting hole is provided on the inner wall of one end of the device body, one end of the movable sleeve extends through the limiting hole into the interior of the device body, and telescopic rubber baffles are connected to both outer walls of one end of the movable sleeve.

[0008] Preferably, rubber balls are installed at both ends below the sieve box, and each rubber ball is connected to a pressing rod. A second drive motor is installed on one side below each pressing rod, and the output end of the second drive motor is connected to the pressing rod through a drive shaft.

[0009] Preferably, dampers are evenly installed on the upper side of one side and the lower side of the other side of the screen box, and a return spring is installed on the outer wall of one end of each damper.

[0010] Preferably, the limiting grooves are provided at both ends of the inner wall on one side of the device body, and the outer walls at both ends of the sieve box are movably connected to the limiting grooves via limiting blocks.

[0011] Compared with the prior art, the beneficial effects of this utility model are: (1) The servo motor is used to rotate the lead screw, and the threaded engagement causes the moving sleeve to drive the brush to move at a constant speed from one side to the other. The brush moves to clean the area below the screen plate and can also sweep the impurities in the filter holes to the top for cleaning. Then, the second drive motor is used to rotate the extrusion rod and the rubber ball rotates at the same time. When the rubber ball rotates to the top, it squeezes the screen box upward. When the rubber ball rotates away from the screen box, the screen box moves downward. When the rubber ball squeezes the screen box upward, the damper and the return spring deform. When the rubber ball rotates away from the screen box, the damper and the return spring reset, causing the screen box to move downward. This cycle repeats, and the screen box moves up and down to create vibration, which further prevents clogging.

[0012] (2) The first drive motor is used to make the rotating rod rotate, thereby making multiple dispersing rods rotate at the same time. The coal slurry blocks entering the feed hopper are dispersed by the rotation of the dispersing rods, thereby improving the screening efficiency. Attached Figure Description

[0013] Figure 1 This is a cross-sectional structural diagram of the device body of this utility model; Figure 2 This is a top view of the main body of the device of this utility model; Figure 3 This is a top-section schematic diagram of the anti-blocking mechanism of this utility model; Figure 4 This is a schematic diagram of the extrusion rod structure of this utility model.

[0014] In the diagram: 1. Feed hopper; 2. Dispersing mechanism; 201. First drive motor; 202. Dispersing rod; 203. Rotating rod; 3. Damper; 4. Return spring; 5. Second drive motor; 6. Control panel; 7. Lower collection box; 8. Side collection box; 9. Screen plate; 10. Screen box; 11. Device body; 12. Vibrating motor; 13. Anti-blocking mechanism; 1301. Servo motor; 1302. Lead screw; 1303. Brush; 1304. Telescopic rubber baffle; 1305. Limiting hole; 1306. Moving sleeve; 14. Rubber ball; 15. Extrusion rod. Detailed Implementation

[0015] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0016] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments. Example 1

[0017] A preferred embodiment of the coarse coal slime screening device provided by this utility model is, for example... Figure 1 As shown: A coarse coal slime screening device includes: a device body 11; a control panel 6 fixedly installed on the lower part of one side of the outer wall of the device body 11; a feed hopper 1 installed on one side above the device body 11; a lower collection box 7 connected to the lower part of the device body 11; a screen box 10 installed on the inner side of the device body 11, with a screen plate 9 installed at the bottom end of the screen box 10; a side collection box 8 installed on the lower part of one side of the screen box 10; and vibration motors 12 installed on the outer sides of both ends of the device body 11; a dispersing mechanism 2 installed on the inner wall of the feed hopper 1, which is used to disperse the agglomerated coal slime; and an anti-blocking mechanism 13 installed inside one end of the device body 11 below the screen box 10, which is used to prevent the screen plate 9 from being blocked.

[0018] It should be noted that the existing coarse coal slime screening device technology has the following drawbacks: it does not have an anti-clogging function, and the overall vibration force generated by the main vibration is often insufficient to overcome the adhesion between coal slime particles and screen plate 9. The energy of the main vibration is dispersed across the entire screen surface, and the force transmitted to each screen hole is insufficient to dislodge the highly adhesive fine slime, leading to clogging of screen plate 9. This makes it impossible to maintain a stable production process, and the product quality fluctuates accordingly. Furthermore, it does not have a dispersing structure, and coal slime lumps are directly screened, affecting the screening efficiency.

[0019] In this embodiment, coarse coal slime enters the screen box 10 downward through the feed hopper 1. It is dispersed by the dispersing mechanism 2 to improve the screening efficiency. The vibrating motor 12 vibrates the screen plate 9 to perform vibration screening. Larger coal slime enters the side collection box 8 for collection, and smaller slime enters the lower collection box 7 for collection. The anti-clogging mechanism 13 cleans and prevents the screen plate 9 from clogging. The vibration generated by the up-and-down movement of the screen plate 9 further prevents clogging.

[0020] In a further preferred embodiment of the present invention, the dispersing mechanism 2 includes: a rotating rod 203 installed on the inner wall of the hopper 1, a first drive motor 201 installed on the outer wall of one side of the hopper 1, and the output end of the first drive motor 201 connected to one end of the rotating rod 203 through a drive shaft, and dispersing rods 202 evenly installed on the outer wall of the rotating rod 203.

[0021] In this embodiment, the first drive motor 201 operates to rotate the rotating rod 203, thereby causing multiple dispersing rods 202 to rotate simultaneously. The rotation of the dispersing rods 202 disperses the coal slurry blocks entering the feed hopper 1. Example 2

[0022] Based on Example 1, a preferred embodiment of the coarse coal slime screening device provided by this utility model is as follows: Figure 1 , Figure 3 and Figure 4 As shown: The anti-blocking mechanism 13 includes: a servo motor 1301 installed inside one end of the device body 11 below the screen box 10. The output end of the servo motor 1301 is connected to a lead screw 1302 through a drive shaft. A movable sleeve 1306 is threaded on the outer wall of the lead screw 1302, and a brush 1303 is connected to one end of the movable sleeve 1306.

[0023] In this embodiment, the servo motor 1301 operates to rotate the lead screw 1302, which, through threaded engagement, causes the moving sleeve 1306 to drive the brush 1303 to move at a constant speed from one side to the other. The movement of the brush 1303 cleans the area below the sieve plate 9 and also sweeps impurities in the filter holes to the top for cleaning.

[0024] In a further preferred embodiment of the present invention, a limiting hole 1305 is provided on the inner wall of one end of the device body 11, and one end of the movable sleeve 1306 extends through the limiting hole 1305 into the interior of the device body 11. Telescopic rubber baffles 1304 are connected to both outer walls of one end of the movable sleeve 1306.

[0025] In this embodiment, by moving the movable sleeve 1306, the telescopic rubber baffles 1304 on both sides extend and lock, thereby achieving the function of protection and blocking to prevent impurities from entering.

[0026] In a further preferred embodiment of this utility model, rubber balls 14 are installed at both ends below the sieve box 10, and each rubber ball 14 is connected to a pressing rod 15. A second drive motor 5 is installed on one side below the pressing rod 15, and the output end of the second drive motor 5 is connected to the pressing rod 15 through a drive shaft.

[0027] In this embodiment, the second drive motor 5 is used to rotate the extrusion rod 15, and the rubber ball 14 rotates at the same time. When the rubber ball 14 rotates to the top, it extrudes the screen box 10 upward. When the rubber ball 14 rotates away from the screen box 10, the screen box 10 moves downward. This cycle repeats, and the up-and-down movement of the screen box 10 creates vibration, which further prevents clogging.

[0028] In a further preferred embodiment of the present invention, dampers 3 are evenly installed on the upper side of one side and the lower side of the other side of the sieve box 10, and a return spring 4 is installed on the outer wall of one end of each damper 3.

[0029] In this embodiment, the rubber ball 14 presses the screen box 10 upward, causing the damper 3 and the return spring 4 to deform. After the rubber ball 14 rotates away from the screen box 10, the damper 3 and the return spring 4 reset, causing the screen box 10 to move downward.

[0030] In a further preferred embodiment of this utility model, the limiting grooves provided at both ends of the inner wall on one side of the device body 11, and the outer walls at both ends of the sieve box 10 are movably connected to the limiting grooves via limiting blocks.

[0031] In this embodiment, as the sieve plate 9 moves up and down, the limiting block moves within the limiting groove to support and limit the sieve plate 9.

[0032] In summary, the coal slime is broken up by the dispersing mechanism 2, and then screened through the screen plate 9. The anti-clogging mechanism 13 cleans and prevents the screen plate 9 from clogging, resulting in better performance.

[0033] It is worth noting that the circuits, electronic components, and modules involved in this utility model are all existing technologies, which can be fully implemented by those skilled in the art, and need not be elaborated upon. The content protected by this utility model does not involve any improvement to the software and methods.

[0034] It should be understood that the disclosed apparatus can be implemented in other ways, given the several embodiments provided in this application. For example, the apparatus embodiments described above are merely illustrative; the division of units described above is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or communication connections shown or discussed may be through some interfaces; the indirect coupling or communication connections between devices or units may be telecommunications or other forms.

[0035] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit the scope of protection of this utility model. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model. Although this utility model has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of this utility model according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of this utility model. These technical solutions are also within the scope of protection of this utility model.

Claims

1. A coarse coal slime screening device, characterized in that, include: Device body (11); A control panel (6) is fixedly installed on the lower side of the outer wall of one side of the device body (11). A hopper (1) is installed on one side above the device body (11). A lower collection box (7) is connected to the lower part of the device body (11). A sieve box (10) is installed on the inner side of the device body (11), and a sieve plate (9) is installed at the bottom of the sieve box (10). A side collection box (8) is installed on the lower side of one side of the sieve box (10). Vibration motors (12) are installed on the outer sides of both ends of the device body (11). A dispersing mechanism (2) is installed on the inner wall of the feeding hopper (1), which is used to disperse the clumps of coal slime. An anti-blocking mechanism (13) is installed inside one end of the device body (11) below the sieve box (10). The anti-blocking mechanism (13) is used to prevent the sieve plate (9) from being blocked.

2. The coarse coal slime screening device according to claim 1, characterized in that, The disintegration mechanism (2) includes: A rotating rod (203) is installed on the inner wall of the feeding hopper (1). A first drive motor (201) is installed on the outer wall of one side of the feeding hopper (1). The output end of the first drive motor (201) is connected to one end of the rotating rod (203) through a drive shaft. Dispersing rods (202) are evenly installed on the outer wall of the rotating rod (203).

3. The coarse coal slime screening device according to claim 1, characterized in that, The anti-blocking mechanism (13) includes: A servo motor (1301) is installed inside one end of the device body (11) below the sieve box (10). The output end of the servo motor (1301) is connected to a lead screw (1302) via a drive shaft. A movable sleeve (1306) is threaded on the outer wall of the lead screw (1302), and a brush (1303) is connected to one end of the movable sleeve (1306).

4. The coarse coal slime screening device according to claim 3, characterized in that, A limiting hole (1305) is provided on the inner wall of one end of the device body (11). One end of the movable sleeve (1306) extends through the limiting hole (1305) into the interior of the device body (11). Both outer walls of one end of the movable sleeve (1306) are connected with telescopic rubber baffles (1304).

5. The coarse coal slime screening device according to claim 1, characterized in that, Rubber balls (14) are installed at both ends of the screen box (10) below, and each rubber ball (14) is connected to a squeezing rod (15). A second drive motor (5) is installed on one side below each squeezing rod (15), and the output end of the second drive motor (5) is connected to the squeezing rod (15) through a drive shaft.

6. The coarse coal slime screening device according to claim 1, characterized in that, Dampers (3) are evenly installed on one side above the screen box (10) and the other side below it, and a return spring (4) is installed on the outer wall of one end of each damper (3).

7. The coarse coal slime screening device according to claim 1, characterized in that, The limiting grooves are provided at both ends of the inner wall of one side of the device body (11), and the outer walls at both ends of one side of the sieve box (10) are movably connected to the limiting grooves through limiting blocks.

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