A vibrating screen coal separator

Abstract

The utility model discloses a vibrating screen coal separating machine belongs to vibrating screen coal separating machine technical field, including the chassis, the top of chassis is equipped with the inclined conveyer, the top of conveyer is equipped with screening mechanism and coal storage bin along the conveying direction in proper order, and the screening mechanism includes the conical screen cylinder, and the middle part of conical screen cylinder is installed with the pivot, and one end of pivot is connected with motor, and both ends of conical screen cylinder all are equipped with the fixed frame of fixed connection in the top of chassis, and the middle part of fixed frame is slidably installed with the vibration block. The utility model discloses a screening mechanism is set up, and motor drives pivot rotation, and conical screen cylinder rotates along with it, and drives the coal on its inner wall to overturn, and under the action of gravity, the smaller coal lump falls through conical screen cylinder and falls on conveyer and is conveyed upward, and the larger coal lump flows downward in conical screen cylinder, and in the process of conical screen cylinder rotation, through the setting of eccentric block, fixed frame, vibration block and spring, conical screen cylinder is driven to vibrate up and down, thereby improving the screening efficiency of coal separating machine screening.

Description

Technical Field

[0001] This utility model relates to a vibrating screen coal preparation machine, belonging to the technical field of vibrating screen coal preparation machine equipment. Background Technology

[0002] Coal preparation is an important step in the coal processing process. It aims to remove impurities from raw coal through physical or chemical methods, classify the raw coal, and improve the quality and calorific value of the coal. Vibrating screen coal preparation is mainly used for preliminary classification and pretreatment of coal. Through vibrating screen, raw coal can be effectively separated according to particle size, providing conditions for subsequent coal preparation processes.

[0003] Existing coal preparation machines achieve screening by rotating a screen cylinder, which has low efficiency. Therefore, in order to improve the effect and efficiency of coal preparation and reduce the impact on the economic value of coal, this invention provides a vibrating screen coal preparation machine. Utility Model Content

[0004] The main purpose of this utility model is to provide a vibrating screen coal preparation machine to overcome the shortcomings of the existing technology.

[0005] The objective of this utility model can be achieved by adopting the following technical solution:

[0006] A vibrating screen coal preparation machine includes a base frame, an inclined conveyor on the top of the base frame, a screening mechanism and a coal storage bin sequentially arranged on the top of the conveyor along the conveying direction, the screening mechanism including a conical screen cylinder, a rotating shaft installed in the middle of the conical screen cylinder, a motor connected to one end of the rotating shaft, fixed frames fixedly connected to the top of the base frame at both ends of the conical screen cylinder, a vibrating block slidably installed in the middle of the fixed frame, a through hole in the middle of the vibrating block that rotatably engages with the rotating shaft, springs located inside the fixed frame connected to both ends of the vibrating block, an eccentric block fixedly connected to one outer wall of the middle of the rotating shaft, and a coal discharge pipe extending to the inside of the conical screen cylinder connected to the bottom of the coal storage bin.

[0007] Preferably, the top of the base frame is fixedly connected to two support frames located on the front and rear sides of the conveyor, respectively, the coal storage bin is installed on the support frames, and crossbars are connected to the support frames.

[0008] Preferably, the top of the base frame is fixedly connected to two columns located on the front and rear sides of the conveyor, respectively, and the fixing frames located at both ends of the conical screen cylinder are respectively installed on the crossbar and the columns by screws.

[0009] Preferably, both the crossbar and the column have screw holes at their tops, and the front and rear sides of the fixing frame are fixedly connected to support rods, with mounting holes at the top of the support rods.

[0010] Preferably, the inner walls on both sides of the fixed frame are provided with sliding grooves, and the outer walls on both sides of the vibrating block are fixedly connected with sliders that are slidably installed inside the sliding grooves.

[0011] Preferably, a plurality of connecting rods are connected between the outer wall of the rotating shaft and the inner wall of the conical screen cylinder.

[0012] Preferably, the top of the conveyor is provided with two arc-shaped plates located on the front and rear sides of the conical screen cylinder, respectively.

[0013] Preferably, the lower end of the conveyor is provided with a guide plate located below the conical screen cylinder, and the front and rear sides of the guide plate are fixedly connected with reinforcing plates installed on the base frame.

[0014] Preferably, a feeding hopper is fixedly connected to the bottom of the coal storage silo, and the coal discharge pipe is fixedly connected to the side wall at the lower end of the feeding hopper.

[0015] Preferably, a vibration motor is installed at the bottom of the hopper.

[0016] The beneficial technical effects of this utility model are as follows: According to the vibrating screen coal preparation machine of this utility model, through the setting of the screening mechanism, the motor drives the rotating shaft to rotate, and the conical screen cylinder rotates accordingly, causing the coal on its inner wall to turn over. Under the action of gravity, smaller coal blocks fall through the conical screen cylinder onto the conveyor and are conveyed upward, while larger coal blocks flow downward in the conical screen cylinder. During the rotation of the conical screen cylinder, through the setting of eccentric blocks, fixed frames, vibrating blocks and springs, the conical screen cylinder is driven to vibrate up and down, thereby improving the screening efficiency of the coal preparation machine. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure according to a preferred embodiment of the present invention;

[0018] Figure 2 This is a cross-sectional view of the overall structure according to a preferred embodiment of the present invention;

[0019] Figure 3 This is a schematic diagram of the overall structure according to a preferred embodiment of the present invention;

[0020] Figure 4 This is a schematic diagram of the base frame structure according to a preferred embodiment of the present invention;

[0021] Figure 5 This is a schematic diagram of a conical sieve cylinder structure according to a preferred embodiment of the present invention;

[0022] Figure 6This is a schematic diagram of a vibration block structure according to a preferred embodiment of the present invention.

[0023] In the diagram: 1. Base frame; 2. Conveyor; 3. Coal storage bin; 4. Conical screen cylinder; 5. Rotating shaft; 6. Motor; 7. Fixed frame; 8. Vibrating block; 9. Spring; 10. Eccentric block; 11. Coal discharge pipe; 12. Vibrating motor; 13. Support frame; 14. Crossbar; 15. Column; 16. Screw hole; 17. Support rod; 18. Mounting hole; 19. Slide groove; 20. Sliding block; 21. Connecting rod; 22. Arc plate; 23. Guide plate; 24. Reinforcing plate; 25. Feed hopper. Detailed Implementation

[0024] To enable those skilled in the art to understand the technical solution of this utility model more clearly, the present utility model will be further described in detail below with reference to the embodiments and accompanying drawings, but the implementation of this utility model is not limited thereto.

[0025] like Figures 1-6 As shown, the vibrating screen coal preparation machine provided in this embodiment includes a base frame 1. An inclined conveyor 2 is provided on the top of the base frame 1. A screening mechanism and a coal storage bin 3 are sequentially provided on the top of the conveyor 2 along the conveying direction. The screening mechanism includes a conical screen cylinder 4. A rotating shaft 5 is installed in the middle of the conical screen cylinder 4. A motor 6 is connected to one end of the rotating shaft 5. Fixed frames 7 are fixedly connected to the top of the base frame 1 at both ends of the conical screen cylinder 4. Vibrating blocks 8 are slidably installed in the middle of the fixed frames 7. A through hole is provided in the middle of the vibrating blocks 8 to rotate with the rotating shaft 5. Springs 9 located inside the fixed frames 7 are connected to both the upper and lower ends of the vibrating blocks 8. An eccentric block 10 is fixedly connected to the outer wall of one side of the middle of the rotating shaft 5. A coal discharge pipe 11 extending to the inside of the conical screen cylinder 4 is connected to the bottom of the coal storage bin 3. With the setting of the screening mechanism, the motor 6 drives the rotating shaft 5 to rotate, and the conical screen cylinder 4 rotates accordingly, causing the coal on its inner wall to turn over. Under the action of gravity, smaller coal blocks fall through the conical screen cylinder 4 onto the conveyor 2 and are conveyed upward, while larger coal blocks flow downward in the conical screen cylinder 4. During the rotation of the conical screen cylinder 4, the eccentric block 10, the fixed frame 7, the vibrating block 8 and the spring 9 are set to drive the conical screen cylinder 4 to vibrate up and down, thereby improving the screening efficiency of the coal preparation machine.

[0026] In this embodiment, as Figure 2 , Figure 4 and Figure 6As shown, the top of the base frame 1 is fixedly connected to two support frames 13 located on the front and rear sides of the conveyor 2, respectively. The coal storage bin 3 is installed on the support frames 13, and crossbars 14 are connected to the support frames 13. The top of the base frame 1 is fixedly connected to two columns 15 located on the front and rear sides of the conveyor 2, respectively. The fixing frames 7 located at both ends of the conical screen cylinder 4 are respectively installed on the crossbars 14 and columns 15 with screws. The top of both the crossbars 14 and columns 15 are provided with screw holes 16. Support rods 17 are fixedly connected to the front and rear sides of the fixing frames 7, and the top of the support rods 17 is provided with mounting holes 18. By setting the crossbars 14, columns 15, screw holes 16, support rods 17 and mounting holes 18, the fixing frames 7 are installed with screws, which is convenient for loading and unloading.

[0027] In this embodiment, as Figure 6 As shown, the inner walls of both sides of the fixed frame 7 are provided with sliding grooves 19, and the outer walls of both sides of the vibrating block 8 are fixedly connected with sliders 20 that are slidably installed inside the sliding grooves 19. By setting the sliding grooves 19 and sliders 20, the vibrating block 8 can vibrate vertically in a straight line.

[0028] In this embodiment, as Figure 1 , Figure 2 and Figure 5 As shown, several connecting rods 21 connect the outer wall of the rotating shaft 5 and the inner wall of the conical screen cylinder 4. The top of the conveyor 2 is provided with two arc-shaped plates 22 located on the front and rear sides of the conical screen cylinder 4, respectively. The arc-shaped plates 22 are used to prevent coal leakage.

[0029] In this embodiment, as Figure 1 , Figure 2 and Figure 4 As shown, a guide plate 23 is provided at the top of the lower end of the conveyor 2, located below the conical screen cylinder 4. Reinforcing plates 24, mounted on the base frame 1, are fixedly connected to both the front and rear sides of the guide plate 23. The guide plate 23 prevents larger coal chunks from falling onto the conveyor 2 from the guide section of the conical screen cylinder 4.

[0030] In this embodiment, as Figure 1 , Figure 2 and Figure 4 As shown, a feeding hopper 25 is fixedly connected to the bottom of the coal storage bin 3, and a coal discharge pipe 11 is fixedly connected to the side wall of the lower end of the feeding hopper 25. A vibrating motor 12 is installed at the bottom of the feeding hopper 25. By setting up the feeding hopper 25 and the vibrating motor 12, coal blockage is prevented.

[0031] In this embodiment, as Figures 1-6 As shown in the figure, the working process of the vibrating screen coal preparation machine provided in this embodiment is as follows:

[0032] Step 1: Start the vibration motor 12, and the coal blocks enter the conical screen cylinder 4 through the coal discharge pipe 11;

[0033] Step 2: Start the motor 6 to drive the rotating shaft 5 to rotate, and the conical screen cylinder 4 will rotate accordingly, causing the coal on its inner wall to turn over. Under the action of gravity, smaller coal pieces pass through the conical screen cylinder 4 and fall onto the conveyor 2 for upward transport.

[0034] Step 3: Larger coal blocks flow downwards in the conical screen cylinder 4. During the rotation of the conical screen cylinder 4, the eccentric block 10, the fixed frame 7, the vibrating block 8 and the spring 9 drive the conical screen cylinder 4 to vibrate up and down, thereby improving the screening efficiency of the coal preparation machine.

[0035] Contents not described in detail in this specification are existing technologies known to those skilled in the art. Standard parts used in this invention can all be purchased commercially, and irregularly shaped parts can be custom-made according to the description and drawings. The specific connection methods for each part all employ conventional methods such as bolts, rivets, and welding, which are already mature technologies. The machinery, parts, and equipment all use conventional models from the prior art, and the circuit connections also employ conventional connection methods from the prior art, which will not be detailed here.

[0036] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A vibrating screen coal preparation machine, comprising a base frame (1), characterized in that, The top of the base frame (1) is provided with an inclined conveyor (2). The top of the conveyor (2) is provided with a screening mechanism and a coal storage bin (3) in sequence along the conveying direction. The screening mechanism includes a conical screen cylinder (4). A rotating shaft (5) is installed in the middle of the conical screen cylinder (4). A motor (6) is connected to one end of the rotating shaft (5). Both ends of the conical screen cylinder (4) are provided with fixed frames (7) fixedly connected to the top of the base frame (1). A vibrating block (8) is slidably installed in the middle of the fixed frame (7). A through hole is provided in the middle of the vibrating block (8) to rotate with the rotating shaft (5). Both the upper and lower ends of the vibrating block (8) are connected with springs (9) located inside the fixed frame (7). An eccentric block (10) is fixedly connected to the outer wall of one side of the middle of the rotating shaft (5). A coal discharge pipe (11) extending to the inside of the conical screen cylinder (4) is connected to the bottom of the coal storage bin (3).

2. The vibrating screen coal preparation machine according to claim 1, characterized in that, The top of the base frame (1) is fixedly connected to two support frames (13) located on the front and rear sides of the conveyor (2), respectively. The coal storage bin (3) is installed on the support frame (13), and a crossbar (14) is connected to the support frame (13).

3. The vibrating screen coal preparation machine according to claim 2, characterized in that, The top of the base frame (1) is fixedly connected to two columns (15) located on the front and rear sides of the conveyor (2), respectively. The fixed frames (7) located at both ends of the conical screen cylinder (4) are respectively installed on the crossbar (14) and the columns (15) by screws.

4. A vibrating screen coal preparation machine according to claim 3, characterized in that, The top of the crossbar (14) and the column (15) are provided with screw holes (16), and the front and rear sides of the fixed frame (7) are fixedly connected with support rods (17), and the top of the support rods (17) is provided with mounting holes (18).

5. A vibrating screen coal preparation machine according to claim 1, characterized in that, The inner walls of both sides of the fixed frame (7) are provided with sliding grooves (19), and the outer walls of both sides of the vibrating block (8) are fixedly connected with sliders (20) that are slidably installed inside the sliding grooves (19).

6. A vibrating screen coal preparation machine according to claim 1, characterized in that, A number of connecting rods (21) are connected between the outer wall of the rotating shaft (5) and the inner wall of the conical screen cylinder (4).

7. A vibrating screen coal preparation machine according to claim 1, characterized in that, The top of the conveyor (2) is provided with two arc-shaped plates (22) located on the front and rear sides of the conical screen cylinder (4).

8. A vibrating screen coal preparation machine according to claim 1, characterized in that, The conveyor (2) has a guide plate (23) at the top of the lower end, which is located below the conical screen cylinder (4). The front and rear sides of the guide plate (23) are fixedly connected with reinforcing plates (24) installed on the base frame (1).

9. A vibrating screen coal preparation machine according to claim 1, characterized in that, The bottom of the coal storage bin (3) is fixedly connected to a feeding hopper (25), and the coal discharge pipe (11) is fixedly connected to the side wall of the lower end of the feeding hopper (25).

10. A vibrating screen coal preparation machine according to claim 9, characterized in that, A vibration motor (12) is installed at the bottom of the hopper (25).

Images