A screening device for raw coal processing

Abstract

The utility model relates to screening device technical field, a screening device for raw coal processing, including the box, the inside of box is hollow structure, still include: the top fixedly connected with fixed block of box, the top of fixed block is provided with screening box, the inside fixedly connected with the frame of screening box, the inside slidingly connected with the placing frame of screening box, the inside fixedly connected with first filter plate of placing frame, first filter plate is arranged in the inside of placing frame in the form of inclination, the inside fixedly connected with second filter plate of screening box, the utility model discloses the mutual cooperation of first filter plate and second filter plate can make the device to material and carry out multistage filtration processing, through the baffle can be to the material of second filter plate screening and carry out the flow guide, simultaneously through the bolt fixed of handle, make the positioning of rotating shaft more smoothly, and make rotating shaft can more smoothly drive the baffle to rotate, and realize the closing and opening of second filter plate.

Description

Technical Field

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

[0002] A coal mine is an area where humans extract coal resources in a coal-rich mining area. When the coal seam is very close to the surface, the coal is usually extracted by directly stripping away the surface soil layer; this is called an open-pit coal mine.

[0003] A search revealed a Chinese patent publication number: CN219785555U, which provides a raw coal screening device, including a screening box, a collection box, and a driving mechanism. The screening box includes a screening box body, a screen plate, and a cover plate. A screening cavity is formed inside the screening box body. The screen plate is set inside the screening cavity and has screen holes. A coal feeding port communicating with the screening cavity is formed on the screening box body. The cover plate is set at the coal feeding port and is movably connected to the screening box body.

[0004] Although the aforementioned patent can screen coal, the aforementioned device still has the following problems: during the use of the device, since the device can only screen coal once, it cannot perform multi-stage screening of coal materials, which reduces the screening accuracy of the materials to a certain extent. In view of the above situation, technical innovation is carried out on the basis of the existing device. Utility Model Content

[0005] The purpose of this invention is to provide a screening device for raw coal processing, so as to solve the problem mentioned in the background art that the device cannot perform multi-stage screening of coal materials.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a screening device for raw coal processing, comprising a box body, the interior of which is a hollow structure, and further comprising: a fixing block fixedly connected to the top of the box body, a screening box disposed on the top of the fixing block, a support frame fixedly connected inside the screening box, a placement frame slidably connected inside the screening box, a first filter plate fixedly connected inside the placement frame, the first filter plate being disposed at an inclination inside the placement frame, a second filter plate fixedly connected inside the screening box, the second filter plate being disposed at an inclination inside the screening box, a rotating shaft extending to the outside of the screening box being rotatably connected inside the screening box, a baffle fixedly connected to the outer surface of the rotating shaft, a guide plate fixedly connected to the inner wall of the screening box, the top of the guide plate being fixedly connected to the bottom of the second filter plate.

[0007] Preferably, the fixed block has two sliding grooves inside, and a collection box is slidably connected inside each of the two sliding grooves. A power transmission device is installed inside the box.

[0008] Preferably, a handle is fixedly connected to one end of the rotating shaft, the handle is fixed to the screening box by bolts, the collection box is fixedly installed on the fixed block by bolts, and a movable cover is fixedly connected between the screening box and the fixed block.

[0009] Preferably, the power transmission device includes a motor, the bottom of which is fixedly connected to the inside of the housing, a rotating disk is fixedly connected to the output end of the motor, a transmission shaft is fixedly connected to the top of the rotating disk, a movable groove communicating with the inside of the housing is opened on the top of the housing, a C-shaped transmission frame extending to the outside of the movable groove is slidably connected inside the movable groove, a connecting rod is fixedly connected to the side of the C-shaped transmission frame near the screening box, and the side of the connecting rod near the screening box is fixedly connected to the surface of the screening box.

[0010] Preferably, the drive shaft is located away from the center of the rotating disk.

[0011] Preferably, the C-shaped transmission frame is fixedly connected to a transmission frame on one side inside the housing. The transmission frame has a cross-shaped cross section and a movable groove is provided inside the transmission frame. The surface of the transmission shaft is movably connected to the inside of the movable groove.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] This invention enables multi-stage filtration of materials through the cooperation of the first and second filter plates. The guide plate guides the material screened by the second filter plate, while the bolts securing the handle ensure smoother positioning of the rotating shaft and facilitates the rotation of the baffle, allowing the second filter plate to open and close. This makes it easier to discharge material from the top of the second filter plate and enables the second filter plate to filter and screen raw coal more effectively. Two collection boxes allow for the separate collection of materials of different specifications. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of a screening device for raw coal processing according to the present invention;

[0015] Figure 2 This is a schematic diagram of the structure of the fixing block of this utility model;

[0016] Figure 3 This is a schematic diagram of the structure of the collection box of this utility model;

[0017] Figure 4 This is a schematic diagram of the structure of the C-shaped transmission frame of this utility model;

[0018] Figure 5 This is a schematic diagram of the structure of the second filter plate of this utility model.

[0019] In the diagram: 1. Box body; 2. Moving trough; 3. Fixed block; 4. Collection box; 5. Slide chute; 6. Screening box; 7. Movable cover; 8. Placement frame; 9. Support frame; 10. First filter plate; 11. Second filter plate; 12. Guide plate; 13. Baffle; 14. Rotating shaft; 15. Handle; 16. Motor; 17. Rotating disk; 18. Transmission frame; 19. Moving trough; 20. Transmission shaft; 21. Connecting rod; 22. C-shaped transmission frame. Detailed Implementation

[0020] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the following detailed description of the specific implementation methods, structure, features and effects of this utility model is provided in conjunction with the accompanying drawings and preferred embodiments.

[0021] Please see Figures 1-5 As shown, a screening device for raw coal processing includes a housing 1, the interior of which is hollow. A fixing block 3 is fixedly connected to the top of the housing 1, and a screening box 6 is mounted on the top of the fixing block 3. The screening box 6 has a top cover and a feeding channel. A support frame 9 is fixedly connected inside the screening box 6, and a placement frame 8 is slidably connected inside the screening box 6. A first filter plate 10 is fixedly connected inside the placement frame 8, and the first filter plate 10 is inclined inside the placement frame 8. The support frame 9 can support the placement frame 8. A second filter plate 11 is fixedly connected inside the screening box 6, and the second filter plate 11 is inclined inside the screening box 6. An extension extending into the screening box is rotatably connected inside the screening box 6. The external rotating shaft 14 has a baffle 13 fixedly connected to its outer surface. The baffle 13 can block and seal one side of the second filter plate 11. The inner wall of the screening box 6 is fixedly connected to a guide plate 12. The top of the guide plate 12 is fixedly connected to the bottom of the second filter plate 11. The guide plate 12 can guide the material screened by the second filter plate 11. The fixed block 3 has two sliding grooves 5 inside. The two sliding grooves 5 are slidably connected to the collection box 4. The two collection boxes 4 can collect materials of different specifications separately and realize multi-stage filtration and collection of the device, which improves the application range of the device. The box 1 is equipped with a power transmission device.

[0022] A handle 15 is fixedly connected to one end of the rotating shaft 14. The handle 15 is fixed to the screening box 6 by bolts. The bolt fixing of the handle 15 makes the positioning of the rotating shaft 14 smoother and enables the rotating shaft 14 to drive the baffle 13 to rotate more smoothly, and realizes the closing and opening of the second filter plate 11. This makes the discharge of material at the top of the second filter plate 11 more convenient and enables the second filter plate 11 to filter and screen the raw coal more smoothly.

[0023] The collection box 4 is fixedly installed on the fixed block 3 by bolts. The screening box 6 and the fixed block 3 are fixedly connected by a movable cover 7. The movable cover 7 is an existing structure and will not be described in detail here.

[0024] The power transmission device includes a motor 16. The bottom of the motor 16 is fixedly connected to the inside of the housing 1. The motor 16 is an existing structure and will not be described in detail here. The output end of the motor 16 is fixedly connected to a rotating disk 17. The top of the rotating disk 17 is fixedly connected to a transmission shaft 20. The transmission shaft 20 is located away from the center of the rotating disk 17, so that the rotating disk 17 can drive the transmission shaft 20 to rotate eccentrically. The top of the housing 1 is provided with a movable groove 2 that communicates with the inside of the housing 1. The inside of the movable groove 2 is slidably connected to a C-shaped transmission frame 22 that extends to the outside of the movable groove 2. A connecting rod 21 is fixedly connected to the side of the C-shaped transmission frame 22 near the screening box 6. The side of the connecting rod 21 near the screening box 6 is fixedly connected to the surface of the screening box 6.

[0025] A C-shaped transmission frame 22 is fixedly connected to a transmission frame 18 on one side inside the housing 1. The transmission frame 18 has a cross-shaped cross section and a movable groove 19 is provided inside the transmission frame 18. The surface of the transmission shaft 20 is movably connected to the inside of the movable groove 19. The transmission shaft 20 drives the transmission frame 18 to move through the movable groove 19, so that the transmission frame 18 can drive the C-shaped transmission frame 22 to move back and forth. The C-shaped transmission frame 22 drives the screening box 6 to move back and forth through the connecting rod 21, so that the material inside the screening box 6 can be shaken and screened, making the screening process of the material smoother.

[0026] Working Principle: In operation, this raw coal processing screening device works by having the worker place the raw coal material into the screening box 6. The worker then starts the motor 16, which drives the rotating disc 17 and the transmission shaft 20 to rotate. The transmission shaft 20, through the movable groove 19, moves the transmission frame 18, causing the transmission frame 18 to drive the U-shaped transmission frame 22 to reciprocate. The U-shaped transmission frame 22, through the connecting rod 21, drives the screening box 6 to reciprocate, allowing the material inside the screening box 6 to be shaken and screened, thus facilitating smoother material screening. Through the cooperation of the first filter plate 10 and the second filter plate 11, the material can be further processed... The device performs multi-stage filtration of materials. The guide plate 12 guides the material screened by the second filter plate 11. The bolts fixing the handle 15 make the positioning of the rotating shaft 14 smoother and allow the rotating shaft 14 to drive the baffle 13 to rotate more smoothly, realizing the opening and closing of the second filter plate 11. This makes the discharge of material at the top of the second filter plate 11 more convenient and allows the second filter plate 11 to filter and screen raw coal more smoothly. The two collection boxes 4 can collect materials of different specifications separately and realize multi-stage filtration and collection, thus expanding the application range of the device.

[0027] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any indirect modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A screening device for raw coal processing, comprising a housing (1), wherein the interior of the housing (1) is a hollow structure, characterized in that, Also includes: The top of the box (1) is fixedly connected to a fixing block (3), and a screening box (6) is set on the top of the fixing block (3). A support frame (9) is fixedly connected inside the screening box (6). A placement frame (8) is slidably connected inside the screening box (6). A first filter plate (10) is fixedly connected inside the placement frame (8). The first filter plate (10) is set in an inclined position inside the placement frame (8). A second filter plate (11) is fixedly connected inside the screening box (6). The second filter plate (11) is set in an inclined position inside the screening box (6). A rotating shaft (14) extending to the outside of the screening box (6) is rotatably connected inside the screening box (6). A baffle (13) is fixedly connected to the outer surface of the rotating shaft (14). A guide plate (12) is fixedly connected to the inner wall of the screening box (6). The top of the guide plate (12) is fixedly connected to the bottom of the second filter plate (11).

2. The screening device for raw coal processing according to claim 1, characterized in that: The fixed block (3) has two sliding grooves (5) inside, and a collection box (4) is slidably connected inside the two sliding grooves (5). The box body (1) is equipped with a power transmission device.

3. The screening device for raw coal processing according to claim 1, characterized in that: One end of the rotating shaft (14) is fixedly connected to a handle (15), which is fixed to the screening box (6) by bolts. The collection box (4) is fixedly installed on the fixed block (3) by bolts. A movable cover (7) is fixedly connected between the screening box (6) and the fixed block (3).

4. A screening device for raw coal processing according to claim 2, characterized in that: The power transmission device includes a motor (16), the bottom of the motor (16) is fixedly connected to the inside of the housing (1), the output end of the motor (16) is fixedly connected to a rotating disk (17), the top of the rotating disk (17) is fixedly connected to a transmission shaft (20), the top of the housing (1) is provided with a moving groove (2) communicating with the inside of the housing (1), the inside of the moving groove (2) is slidably connected to a C-shaped transmission frame (22) extending to the outside of the moving groove (2), the side of the C-shaped transmission frame (22) near the screening box (6) is fixedly connected to a connecting rod (21), the side of the connecting rod (21) near the screening box (6) is fixedly connected to the surface of the screening box (6).

5. A screening device for raw coal processing according to claim 4, characterized in that: The drive shaft (20) is located away from the center of the rotating disk (17).

6. A screening device for raw coal processing according to claim 4, characterized in that: The C-shaped transmission frame (22) is fixedly connected to a transmission frame (18) on one side inside the housing (1). The cross section of the transmission frame (18) is cross-shaped, and the transmission frame (18) has a movable groove (19) inside. The surface of the transmission shaft (20) is movably connected to the inside of the movable groove (19).

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