Vibrating type multi-stage screening coal screening device

Abstract

The utility model discloses a vibrating type multi-stage screening coal screening device in the technical field of coal screening, which comprises a screening box, three first discharging frames which are uniformly arranged are arranged on one side of the screening box, a second discharging frame is arranged at the bottom of the screening box, a feeding frame is arranged on the top of the screening box and close to one side, and a discharging frame is arranged on the top of the screening box. Movable through holes are formed in the two sides of the screening box correspondingly, fixing blocks on the two sides of the screening box can support a screening part upwards through a supporting part, a vibration assembly can press the screening part downwards, and the supporting part supports the screening part upwards, so that the screening part vibrates up and down in the screening box, multiple screening is conducted on materials through the screening part, and the screening efficiency is improved. The problems that coal of various different sizes cannot be screened at the same time, vibration materials are not convenient to screen, the materials are prone to blocking a screening structure, and the efficiency and practicability of the equipment for screening the coal are affected are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of coal screening, in particular to a vibrating multi-stage coal screening device. Background Technique

[0002] During the production and processing of coal, there are usually certain coal gangues. Coal gangue is a solid waste discharged during the coal mining process and coal washing process. It is a dark gray rock with a lower carbon content and harder than coal that is associated with the coal seam during the coal formation process. However, the presence of gangue will greatly affect the overall quality and quality of raw coal. Existing screening devices are usually single-layer screening, which is not convenient for the equipment to screen out coals of different sizes.

[0003] Existing equipment is usually single-layer screening, which cannot screen coals of multiple different sizes at the same time, and is not convenient for vibrating materials for screening, easily causing the materials to block the screening structure, affecting the efficiency and practicability of the equipment for screening coal. Therefore, those skilled in the art have provided a vibrating multi-stage coal screening device to solve the problems raised in the above background technique. Content of the Utility Model

[0004] The purpose of the utility model is to provide a vibrating multi-stage coal screening device to solve the problems raised in the above background technique.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A vibrating multi-stage coal screening device, including a screening box, characterized in that: Three first discharge racks arranged evenly are installed on one side of the screening box, and a second discharge rack is installed at the bottom of the screening box;

[0006] A feeding rack is installed at the top of the screening box and close to one side. Activity through holes are respectively opened on both sides of the screening box. Fixing blocks are respectively installed on both sides of the screening box. A support member is connected to the top of the fixing block. A screening member is installed inside the screening box. A vibration assembly is installed at the top of the screening box.

[0007] Preferably: The screening member includes a sliding plate installed inside the activity through hole. Three screening plates arranged evenly are connected between the two sliding plates. A baffle is connected to the top of the sliding plate. Three fixing plates arranged evenly are connected to both sides of the three screening plates. The screening plate is fixedly connected to the fixing plate. The sliding plate is fixedly connected to the screening plate. The diameters of the screening holes of the three screening plates decrease sequentially from top to bottom.

[0008] Preferably: The support member includes a support frame installed on the top of the fixing block. A support block is connected to the bottom of the sliding plate. A plurality of guide rods arranged evenly are connected to the bottom of the support frame. A spring is sleeved on the outer side of the guide rod. Both ends of the spring are fixedly connected to the support frame respectively. The support block is fixedly connected to the sliding plate.

[0009] Preferably, the vibration assembly includes a connecting frame installed on the top of the baffle. An installation frame is connected to the top of the screening box. A rotating shaft penetrates through the top of the installation frame. A cam is sleeved on the outer side of the rotating shaft. A motor is connected to one side of the installation frame and at one end of the rotating shaft. The rotating shaft is fixedly connected to the cam. The connecting frame is slidably connected to the screening box. The cross-section of the top of the connecting frame is arc-shaped.

[0010] Preferably, a plurality of uniformly arranged fixing rods are connected to the inner side of the screening box and near the upper middle part. A material pushing plate is sleeved on the outer side of the fixing rods. A limiting strip is connected to one side of the fixing rods on the inner side of the screening box. The material pushing plate is hinged to the fixing rods.

[0011] Preferably, an extension plate is provided on the inner side of the screening box and on the other side of the first discharge rack.

[0012] Preferably, guide blocks are respectively connected to both sides inside the connecting frame. Guide grooves are respectively formed on both sides of the screening box. The guide blocks are slidably connected to the guide grooves.

[0013] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0014] 1. In the present utility model, by providing the first discharge rack, the movable through-hole and the fixing block, the fixing blocks on both sides of the screening box can support the screening member upward through the support member, and the vibration assembly can press down the screening member, and the support member supports the screening member upward, so that the screening member vibrates up and down in the screening box, enabling the screening member to perform multiple screenings on the material, and improving the efficiency of the equipment for screening the material.

[0015] 2. In the present utility model, by providing the sliding plate, the screening plate, the baffle and the fixing plate, the sliding plate and the fixing plate support and fix the three screening plates. The sliding plate slides up and down in the movable through-hole. The baffle on the top of the sliding plate blocks and seals the movable through-hole to prevent the coal from falling through the movable through-hole. The three screening plates can perform multiple screenings on the material. The screened material is led out of the screening box through the three first discharge racks, and then the screened material is led out through the second discharge rack, improving the practicability of the equipment for performing multiple screenings on the material.

[0016] 3. In the present utility model, by providing the support frame, the connecting frame, the rotating shaft, the cam, the support block and the spring, the support frame on the top of the fixing block can support the sliding plate upward through the support block, and the multiple springs in the support frame can support the support frame, so that the two sliding plates support the screening plate upward. The rotating shaft can drive the cam to rotate, and then the cam can press down the top of the connecting frame, enabling the two support frames to support the sliding plate upward through the support block, causing the sliding to drive the three screening plates to vibrate, so that the three screening plates perform vibration screening on the material. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0018] Figure 2 It is a left-side cutaway stereoscopic view of the overall structure of the utility model;

[0019] Figure 3 It is a front cutaway stereoscopic view of the overall structure of the utility model;

[0020] Figure 4 The overall structure of the utility model Figure 2 Enlarged view of point A in the middle;

[0021] Figure 5 The overall structure of the utility model Figure 3 Enlarged view of point B in the middle;

[0022] Figure 6 The overall structure of the utility model Figure 3 Enlarged view of point C in the middle;

[0023] Figure 7 It is a schematic diagram of the structure of the sliding plate, the screening plate, the baffle plate, the fixed plate and the supporting block in the overall structure of the utility model;

[0024] Figure 8 It is a left-side sectional stereoscopic diagram of the sliding plate, the screening plate, the baffle plate, the fixing plate and the supporting block in the overall structure of the utility model;

[0025] Figure 9 It is a structural schematic diagram of the screening box, the first discharging rack, the feeding rack, the movable through hole and the guide groove in the overall structure of the utility model.

[0026] In the figure: 1. screening box; 2. first discharging rack; 3. second discharging rack; 4. feeding rack; 5. movable through hole; 6. fixed block; 7. sliding plate; 8. screening plate; 9. baffle; 10. fixed plate; 11. supporting frame; 12. supporting block; 13. guide rod; 14. spring; 15. connecting frame; 16. mounting frame; 17. rotating shaft; 18. cam; 19. motor; 20. fixing rod; 21. material discharging plate; 22. limiting strip; 23. extension plate; 24. guide block; 25. guide groove. DETAILED DESCRIPTION

[0027] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0028] Please refer to Figures 1 to 9 , in an embodiment of the present utility model, a vibrating multi-stage screening coal device includes a screening box 1. Three first discharge racks 2 arranged evenly are installed on one side of the screening box 1. A second discharge rack 3 is installed at the bottom of the screening box 1. A feeding rack 4 is installed at the top of the screening box 1 and close to one side. Activity through holes 5 are respectively opened on both sides of the screening box 1. Fixing blocks 6 are respectively installed on both sides of the screening box 1. A support member is connected to the top of the fixing block 6. A screening member is installed inside the screening box 1. A vibration assembly is installed on the top of the screening box 1.

[0029] During use, the fixing blocks 6 on both sides of the screening box 1 can support the screening member upward through the support member, and the vibration assembly can press down on the screening member, and the support member supports the screening member upward, so that the screening member vibrates up and down in the screening box 1, enabling the screening member to perform multiple screenings on the material, and improving the efficiency of the equipment for screening the material.

[0030] In one embodiment, specifically, the screening member includes a sliding plate 7 installed inside the activity through hole 5. Three screening plates 8 arranged evenly are connected between the two sliding plates 7. A baffle 9 is connected to the top of the sliding plate 7. Three fixing plates 10 arranged evenly are connected to both sides of the three screening plates 8. The screening plate 8 is fixedly connected to the fixing plate 10, the sliding plate 7 is fixedly connected to the screening plate 8, and the diameters of the screening holes of the three screening plates 8 decrease sequentially from top to bottom.

[0031] Among them, the sliding plate 7 and the fixing plate 10 support and fix the three screening plates 8. The sliding plate 7 slides up and down in the activity through hole 5. The baffle 9 on the top of the sliding plate 7 blocks and seals the activity through hole 5 to prevent coal from falling through the activity through hole 5. The three screening plates 8 can perform multiple screenings on the material. The screened material is exported from the screening box 1 through the three first discharge racks 2, and then the screened material is exported through the second discharge rack 3, improving the practicability of the equipment for performing multiple screenings on the material.

[0032] Further, the support member includes a support frame 11 installed on the top of the fixed block 6. A support block 12 is connected to the bottom of the sliding plate 7. A plurality of guide rods 13 arranged uniformly are connected to the bottom of the support frame 11. A spring 14 is sleeved on the outer side of the guide rod 13. The vibration assembly includes a connecting frame 15 installed on the top of the baffle 9. An installation frame 16 is connected to the top of the screening box 1. A rotating shaft 17 passes through the top of the installation frame 16. A cam 18 is sleeved on the outer side of the rotating shaft 17. A motor 19 is connected to one side of the installation frame 16 and at one end of the rotating shaft 17. Guide blocks 24 are respectively connected to both sides inside the connecting frame 15. Guide grooves 25 are respectively formed on both sides of the screening box 1. The guide blocks 24 are slidably connected with the guide grooves 25. The rotating shaft 17 is fixedly connected with the cam 18. The connecting frame 15 is slidably connected with the screening box 1. The top cross-section of the connecting frame 15 is arc-shaped. Both ends of the spring 14 are fixedly connected to the support frame 11 respectively. The support block 12 is fixedly connected with the sliding plate 7.

[0033] In one embodiment, specifically, the guide blocks 24 can guide and limit the connecting frame 15 to prevent the connecting frame 15 from shifting. The support frame 11 on the top of the fixed block 6 can support the sliding plate 7 upward through the support block 12. The plurality of springs 14 in the support frame 11 can support the support frame 11, so that the two sliding plates 7 support the screening plate 8 upward. The rotating shaft 17 can drive the cam 18 to rotate, and then the cam 18 can press down on the top of the connecting frame 15, so that the two support frames 11 support the sliding plate 7 upward through the support block 12, causing the sliding to drive the three screening plates 8 to vibrate, so that the three screening plates 8 vibrate and screen the materials.

[0034] Among them, a plurality of fixing rods 20 arranged uniformly are connected to the inner side of the screening box 1 and near the upper middle part. A material shifting plate 21 is sleeved on the outer side of the fixing rod 20. A limiting strip 22 is connected to one side of the inner side of the screening box 1 and at the fixing rod 20. An extension plate 23 is on the other side of the first discharge rack 2 on the inner side of the screening box 1. The material shifting plate 21 is hinged with the fixing rod 20. The extension plate 23 is located at one end of the screening plate 8 and below the screening plate 8. The extension plate 23 can guide the screened materials so that the materials flow to the first discharge rack 2 through the extension plate 23. The material shifting plate 21 on the outer side of the fixing rod 20 can stir the materials to prevent the materials from piling up. The limiting strip 22 can limit the material shifting plate 21 to prevent the material shifting plate 21 from shifting excessively or colliding vertically with the screening plate 8.

[0035] The working principle of the present utility model:

[0036] First, the material is put into the screening box 1 through the feeding rack 4. At this time, the support frame 11 at the top of the fixed block 6 supports the sliding plate 7 upward through the support block 12. At the same time, multiple springs 14 in the support frame 11 support the support frame 11. Then, the motor 19 is started to drive the rotation of the rotating shaft 17. At this time, the rotating shaft 17 drives the cam 18 to rotate. Then, the cam 18 presses down on the top of the connecting frame 15. At the same time, the connecting frame 15 drives the guide block 24 to slide in the guide groove 25. Then, the two support frames 11 support the sliding plate 7 upward through the support block 12. Then, the three screening plates 8 vibrate and screen the material. At the same time, the material is stirred by the stirring plate 21 outside the fixed rod 20. Then, the material flows to the first discharge rack 2 through the extension plate 23. At the same time, the screened material is discharged from the screening box 1 through the second discharge rack 3.

[0037] The above is only the preferred specific implementation mode of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution and inventive concept of the present invention, makes equivalent substitutions or changes, and should be covered by the protection scope of the present invention.

Claims

1. A vibrating multi-stage screening coal separation device, comprising a screening box (1), characterized in that: On one side of the screening box (1), three first discharge racks (2) are evenly arranged, and a second discharge rack (3) is installed at the bottom of the screening box (1). At the top of the screening box (1) and near one side, a feeding rack (4) is installed. Activity through holes (5) are respectively opened on both sides of the screening box (1). Fixed blocks (6) are respectively installed on both sides of the screening box (1). A support member is connected to the top of the fixed block (6). A screening member is installed inside the screening box (1). A vibration assembly is installed at the top of the screening box (1).

2. The vibrating multi-stage screening coal separation device according to claim 1, characterized in that: The screening member includes a sliding plate (7) installed inside the activity through hole (5). Three screening plates (8) arranged evenly are connected between the two sliding plates (7). A baffle (9) is connected to the top of the sliding plate (7). Three fixing plates (10) arranged evenly are connected to both sides of the three screening plates (8). The screening plate (8) is fixedly connected to the fixing plate (10). The sliding plate (7) is fixedly connected to the screening plate (8). The diameters of the screening holes of the three screening plates (8) decrease successively from top to bottom.

3. The vibrating multi-stage screening coal separation device according to claim 2, characterized in that: The support member includes a support frame (11) installed at the top of the fixed block (6). A support block (12) is connected to the bottom of the sliding plate (7). A plurality of guide rods (13) arranged evenly are connected to the bottom of the support frame (11). A spring (14) is sleeved on the outer side of the guide rod (13). Both ends of the spring (14) are fixedly connected to the support frame (11) respectively. The support block (12) is fixedly connected to the sliding plate (7).

4. The vibrating multi-stage screening coal device according to claim 3, characterized in that: The vibration assembly includes a connecting frame (15) installed at the top of the baffle (9). An installation frame (16) is connected to the top of the screening box (1). A rotating shaft (17) penetrates through the top of the installation frame (16). A cam (18) is sleeved on the outer side of the rotating shaft (17). A motor (19) is connected to one side of the installation frame (16) and at one end of the rotating shaft (17). The rotating shaft (17) is fixedly connected to the cam (18). The connecting frame (15) is slidably connected to the screening box (1). The cross section of the top of the connecting frame (15) is arc-shaped.

5. The vibrating multi-stage classification coal screening device according to claim 1, wherein: A plurality of fixed rods (20) arranged evenly are connected to the inner side of the screening box (1) and near the upper middle part. A material distributing plate (21) is sleeved on the outer side of the fixed rod (20). A limiting strip (22) is connected to the inner side of the screening box (1) and on one side of the fixed rod (20). The material distributing plate (21) is hinged to the fixed rod (20).

6. The vibrating multi-stage screening coal separation device according to claim 1, characterized in that: An extension plate (23) on the other side of the first discharge rack (2) inside the screening box (1).

7. A vibrating multi-stage screening coal separation device according to claim 4, characterized in that: Guide blocks (24) are respectively connected to both sides inside the connecting frame (15). Guide grooves (25) are respectively opened on both sides of the screening box (1). The guide blocks (24) are slidably connected to the guide grooves (25).

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