Coal washing screening device with anti-blocking function

Abstract

The embodiment of the utility model provides a coal washing and screening device with an anti-blocking function, and relates to the technical field of coal washing and screening. The coal washing screening device with the anti-blocking function comprises a supporting frame, mounting grooves are formed in the two sides of the supporting frame, screens are mounted in the mounting grooves, a rotating rod is rotationally arranged on the supporting frame, a cam is arranged on the rotating rod and located on the lower side of the screens, sliding rails are arranged on the two sides of the supporting frame, and the sliding rails are arranged on the supporting frame. An anti-blocking mechanism is connected into the sliding rail in a sliding mode, and the anti-blocking mechanism carries out anti-blocking by puncturing the screen. The first sliding groove and the second sliding groove are formed in the vertical plate, the connecting plate slides in the first sliding groove, the needles penetrate through the bottom box to extend out, at the moment, the needles slide up and down to puncture meshes of the screen in cooperation with forward and reverse rotation of the second lead screw, meanwhile, the needles move by means of sliding of the sliding block in the sliding rail, and therefore the screen can be conveniently punched. And the anti-blocking effect is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of coal washing and screening, in particular to a coal washing and screening device with an anti-blocking function. Background Art

[0002] Coal washing refers to the process of gradually processing mined coal into clean coal. During the coal washing process, the ore needs to be crushed and screened because the initial volume of the coal ore is large.

[0003] Chinese Patent Publication No.: CN214132660U discloses a coal washing and screening device with anti-blocking function, including an overall supporting platform of the device, a screening vibration power transmission device, an anti-blocking and falling coal slag screening device, a screen support frame 1 and a screen support frame 2, the screening vibration power transmission device is arranged on the overall supporting platform of the device, the anti-blocking and falling coal slag screening device is arranged on the screening vibration power transmission device, the screening vibration power transmission device includes a screening motor, an active roller, a roller support frame, a driven roller, a transmission belt, a driving protrusion and a push-pull rod, and the anti-blocking and falling coal slag screening device includes a linear motion transmission block, a screening plate, an anti-falling screening plate, a coal slag screening hole, a screening support plate, a lever spring, a coal slag receiving plate and an anti-blocking dredging strip. The utility model belongs to the field of coal mining technology, specifically a coal washing and screening device with anti-blocking function, which effectively solves the problem that the screening devices on the market currently do not have the anti-blocking function.

[0004] From the above, it can be known that in the prior art, the ore is screened by the linear movement of the screening disk, and the blockage in the screening disk is dropped. Since the smaller volume of ore is easily stuck in the mesh holes of the screening disk when it is screened, when the ore is stuck tightly, it is difficult to clean the ore simply by relying on the movement of the screening disk. Over time, it is easy to affect the screening effect of the screening disk. Utility Model Content

[0005] The utility model aims to provide a coal washing and screening device with an anti-clogging function, which can prevent smaller volumes of ore from getting stuck in the mesh holes of a screening disc when it is screened therefrom. When the ore is stuck tightly, it is difficult to clean the ore simply by relying on the movement of the screening disc, which can easily affect the screening effect of the screening disc over a long period of time.

[0006] The utility model provides a coal washing and screening device with an anti-blocking function, comprising a supporting frame, both sides of the supporting frame are provided with mounting grooves, screens are installed in the mounting grooves, a rotating rod is rotatably arranged on the supporting frame, a cam is arranged on the rotating rod, the cam is located on the lower side of the screen, both sides of the supporting frame are provided with slide rails, an anti-blocking mechanism is slidably connected in the slide rails, and the anti-blocking mechanism prevents blockage by puncturing the screen.

[0007] Preferably, the anti-blocking mechanism includes a pair of sliders sliding in two slide rails, a vertical plate is provided on one side of the two sliders, the two vertical plates are connected by a horizontal plate, a first slide groove is opened on one side of the vertical plate, a connecting plate is slidably provided in the first slide groove, and a plurality of needle punctures are provided on the lower side of the connecting plate.

[0008] Preferably, a bottom box is provided on the lower side of the two vertical plates, a plurality of perforations are provided on the bottom box, and the needle punctures are slidably connected to the perforations.

[0009] Preferably, a screw rod 2 is rotatably disposed in one of the first sliding grooves, the screw rod 2 is threadedly connected to one side of the connecting plate, and the lower end of the screw rod 2 is connected to a gear 1.

[0010] Preferably, a second slide groove is provided on the other side of the vertical plate, and a brush is slidably arranged in the second slide groove.

[0011] Preferably, a screw rod 3 is rotatably arranged in one of the second slide grooves, and the screw rod 3 is threadedly connected to one end of the brush.

[0012] Preferably, the lower end of the screw rod three is connected to the gear two, and the gear one is meshed with the gear two.

[0013] Preferably, a screw rod 1 is rotatably disposed in one of the slide rails, and the screw rod 1 is threadedly connected to the slider.

[0014] Preferably, springs are provided on both the upper and lower sides of the mounting groove, the springs are connected to the frame of the screen, a limiting groove is provided on the inner frame of the support frame, limiting blocks are provided on both sides of the screen, and the limiting blocks are slidably connected to the limiting grooves.

[0015] Preferably, an outer cover is provided on the outer side of the support frame, a feed port is provided on the outer cover, and a guide plate is provided on the lower side of the support frame.

[0016] The coal washing and screening device with anti-blocking function provided in the embodiment of the utility model has the following advantages compared with the prior art:

[0017] 1. The utility model provides a first slide groove and a second slide groove on the vertical plate, and slides the connecting plate in the first slide groove to allow the needle to penetrate the bottom box and extend out. At this time, the needle slides up and down to puncture the mesh of the screen in coordination with the forward and reverse rotation of the screw rod 2. At the same time, the slider slides in the slide rail to move the needle, thereby improving the anti-blocking effect.

[0018] 2. The utility model makes the brush fit against the screen by sliding the brush in the second slide groove, and cleans the screen by sliding the slider. The meshing of gear one and gear two is utilized to rotate screw rods two and three, so as to adjust the positions of the brush and the acupuncture, and improve the anti-blocking effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solution of the implementation mode of the utility model, the following is a brief introduction to the drawings required for use in the implementation mode. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0020] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the utility model;

[0021] Figure 2 It is a schematic cross-sectional view of the overall structure of an embodiment of the utility model;

[0022] Figure 3 It is a partial schematic diagram of the outer cover structure of an embodiment of the utility model;

[0023] Figure 4 This is a schematic diagram of the disassembly of the screen and the supporting frame structure of an embodiment of the utility model;

[0024] Figure 5 This is a schematic diagram of the anti-blocking mechanism structure of an embodiment of the utility model;

[0025] Figure 6 This is a schematic diagram of the acupuncture structure of an embodiment of the utility model.

[0026] Reference numerals:

[0027] 1. Support frame; 2. Outer cover; 3. Feed inlet; 4. Guide plate; 5. Screen; 6. Slide rail; 7. Screw rod 1; 8. Limiting groove; 9. Mounting groove; 10. Spring; 11. Limiting block; 12. Turning rod; 13. Cam; 14. Vertical plate; 15. First slide groove; 16. Second slide groove; 17. Screw rod 2; 18. Gear 1; 19. Screw rod 3; 20. Gear 2; 21. Brush; 22. Bottom box; 23. Perforation; 24. Connecting plate; 25. Acupuncture; 26. Slider. DETAILED DESCRIPTION

[0028] In conjunction with the accompanying drawings, some embodiments of the present invention are described in detail below. In the absence of conflict, the following embodiments and features in the embodiments can be combined with each other.

[0029] Please refer to Figure 1-Figure 6The embodiment of the utility model provides a coal washing and screening device with an anti-blocking function, including a supporting frame 1, mounting grooves 9 are provided on both sides of the supporting frame 1, a screen 5 is installed in the mounting grooves 9, multiple groups of springs 10 are provided on the upper and lower sides of the mounting grooves 9, the springs 10 are connected to the frame of the screen 5, and the multiple groups of springs 10 are respectively located on the upper and lower sides of the screen 5, which play a role in buffering and resetting the screen 5, a limiting groove 8 is provided on the inner side frame of the supporting frame 1, and limiting blocks 11 are provided on both sides of the screen 5, and the limiting blocks 11 are slidably connected to the limiting grooves 8 to ensure that the screen 5 is not separated from the supporting frame 1, thereby ensuring the screening effect.

[0030] Among them, an outer cover 2 is arranged on the outside of the support frame 1, a feed port 3 is opened on the outer cover 2, and a guide plate 4 is arranged on the lower side of the support frame 1. The material enters through the feed port 3. A rotating rod 12 is rotatably arranged on the support frame 1, and a cam 13 is arranged on the rotating rod 12. The cam 13 is located on the lower side of the screen 5. After the rotating rod 12 is driven by a motor, it rotates with the cam 13. The cam 13 intermittently knocks the screen 5, so that the screen 5 screens the material, and some small ores after screening fall on the guide plate 4.

[0031] In order to prevent the screen 5 from being blocked, slide rails 6 are provided on both sides of the support frame 1 , and an anti-blocking mechanism is slidably connected inside the slide rails 6 , and the anti-blocking mechanism prevents blockage by puncturing the screen 5 .

[0032] Specifically, the anti-blocking mechanism includes a pair of sliders 26 sliding in the two slide rails 6, a vertical plate 14 is provided on one side of the two sliders 26, the two vertical plates 14 are connected by a horizontal plate, a first slide groove 15 is opened on one side of the vertical plate 14, a connecting plate 24 is slidably arranged in the first slide groove 15, and a plurality of needle punctures 25 are arranged on the lower side of the connecting plate 24, and the mesh of the screen 5 is punctured by the needle punctures 25 to prevent the mesh from being blocked.

[0033] Furthermore, a bottom box 22 is provided at the lower side of the two vertical plates 14 , and a plurality of through holes 23 are opened on the bottom box 22 , and the needles 25 are slidably connected to the through holes 23 , and the needles 25 do not pass through the bottom box 22 when not in use.

[0034] A screw rod 17 is rotatably arranged in one of the first slide grooves 15, and the screw rod 17 is driven by a motor. Since the screw rod 17 is threadedly connected to one side of the connecting plate 24, when the screw rod 17 rotates, the needle 25 slides downward, and when the screw rod 17 rotates forward and reversely, the needle 25 can move up and down to puncture the mesh of the screen 5.

[0035] In addition, a second slide groove 16 is opened on the other side of the vertical plate 14, and a brush 21 is slidably arranged in the second slide groove 16. A screw rod 3 19 is rotatably arranged in one of the second slide grooves 16, and the screw rod 3 19 is threadedly connected to one end of the brush 21. When the screw rod 3 19 rotates, the brush 21 moves downward and fits the surface of the screen 5. At this time, the screen 5 can be cleaned by the brush 21. The brush 21 is located on the front side of the acupuncture 25. The brush 21 is used to clean the screen 5 first, and then the acupuncture 25 is used to focus on cleaning the difficult-to-clean parts.

[0036] Therefore, when the brush 21 is in contact with the screen 5, the needles 25 need to be kept away from the screen 5. To achieve this effect, a gear 18 is connected to the lower end of the screw 2 17, and a gear 20 is connected to the lower end of the screw 3 19. By meshing the gear 18 and the gear 2 20, the screw 2 17 and the screw 3 19 rotate in opposite directions, thereby achieving an alternating distribution of the brush 21 and the needles 25 up and down.

[0037] It is worth noting that a screw rod 7 is rotatably arranged in one of the slide rails 6, and the screw rod 7 is threadedly connected to the slider 26. The screw rod 7 is driven by a motor, so the slider 26 slides in the slide rail 6 through the rotation of the screw rod 7, so that the brush 21 and the needle 25 move to clean the screen 5.

[0038] In summary, the coal washing and screening device with anti-clogging function in the embodiment of the utility model has the following working principle: when cleaning the screen 5, the brush 21 is preferentially brought into contact with the screen 5, and the brush 21 cleans the screen 5 by sliding the slider 26 in the slide rail 6. When there are ore that is difficult to clean in the mesh, the needle 25 is moved to the position that needs to be processed, and the screw rod 17 is rotated, and the gear 18 and the gear 20 are meshed, so that the screw rod 3 19 is rotated, and then the needle 25 slides downward, and the brush 21 slides upward to puncture the screen 5.

[0039] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A coal washing and screening device with anti-blocking function, comprising a support frame (1), characterized in that: Both sides of the support frame (1) are provided with mounting grooves (9), a screen (5) is installed in the mounting grooves (9), a rotating rod (12) is rotatably arranged on the support frame (1), a cam (13) is arranged on the rotating rod (12), and the cam (13) is located at the lower side of the screen (5), and both sides of the support frame (1) are provided with slide rails (6), and an anti-blocking mechanism is slidably connected in the slide rails (6), and the anti-blocking mechanism prevents blocking by puncturing the screen (5).

2. The coal washing and screening device with anti-clogging function according to claim 1 is characterized in that: The anti-blocking mechanism comprises a pair of sliding blocks (26) sliding in two sliding rails (6), one side of the two sliding blocks (26) is provided with a vertical plate (14), the two vertical plates (14) are connected by a horizontal plate, one side of the vertical plate (14) is provided with a first sliding groove (15), a connecting plate (24) is slidably arranged in the first sliding groove (15), and a plurality of needles (25) are arranged on the lower side of the connecting plate (24).

3. The coal washing and screening device with anti-clogging function according to claim 2 is characterized in that: A bottom box (22) is arranged at the lower side of the two vertical plates (14), a plurality of perforations (23) are opened on the bottom box (22), and the needles (25) are slidably connected to the perforations (23).

4. The coal washing and screening device with anti-clogging function according to claim 3 is characterized in that: A second screw rod (17) is rotatably disposed in one of the first sliding grooves (15), the second screw rod (17) is threadedly connected to one side of the connecting plate (24), and the lower end of the second screw rod (17) is connected to a gear one (18).

5. The coal washing and screening device with anti-clogging function according to claim 4 is characterized in that: A second sliding groove (16) is provided on the other side of the vertical plate (14), and a brush (21) is slidably arranged in the second sliding groove (16).

6. The coal washing and screening device with anti-clogging function according to claim 5 is characterized in that: A screw rod 3 (19) is rotatably arranged in one of the second sliding grooves (16), and the screw rod 3 (19) is threadedly connected to one end of the brush (21).

7. The coal washing and screening device with anti-clogging function according to claim 6 is characterized in that: The lower end of the screw rod 3 (19) is connected to the gear 2 (20), and the gear 1 (18) and the gear 2 (20) are meshed.

8. The coal washing and screening device with anti-clogging function according to claim 1 is characterized in that: A screw rod (7) is rotatably arranged inside one of the slide rails (6), and the screw rod (7) is threadedly connected to the slider (26).

9. The coal washing and screening device with anti-clogging function according to claim 8 is characterized in that: Springs (10) are provided on both upper and lower sides of the installation groove (9), and the springs (10) are connected to the frame of the screen (5). A limiting groove (8) is provided on the inner frame of the support frame (1), and limiting blocks (11) are provided on both sides of the screen (5), and the limiting blocks (11) are slidably connected to the limiting groove (8).

10. The coal washing and screening device with anti-clogging function according to claim 9, characterized in that: An outer cover (2) is arranged on the outer side of the support frame (1), a feed port (3) is opened on the outer cover (2), and a guide plate (4) is arranged on the lower side of the support frame (1).

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