Novel sieve plate applied to semi-coke screening

Abstract

The utility model discloses a novel sieve plate for screening applied to semi-coke screening, which comprises a box body, a frame is slidably arranged in the box body, a first spring is fixedly arranged between the frame and the bottom wall in the box body, a sieve plate is arranged in the frame, a rotating shaft is horizontally and rotatably arranged in the box body, and a motor is fixedly arranged on the box body. The top in the box body is provided with a moving plate, a rebound assembly is arranged between the moving plate and the inner top wall of the box body, the bottom of the moving plate is fixedly provided with a knocking plate, one end of the rotating shaft is fixedly provided with a rotating plate, and the end, away from the rotating shaft, of the rotating plate is in an arc shape. The rotating plate is in sliding fit with the moving plate when making contact with the moving plate and drives the moving plate to move upwards, and after the rotating plate is separated from the moving plate, the moving plate drives the knocking plate to knock the sieve plate under the action of the springback assembly. On one hand, the semi-coke screening effect is further improved, and on the other hand, the screen surface of the screen plate can be cleaned.

Description

Technical Field

[0001] The utility model relates to the technical field of blue coal screening, in particular to a novel sieve plate used for blue coal screening. Background Art

[0002] Semi-coke is made by burning clean coal blocks. As a new type of carbon material, it has the characteristics of high fixed carbon, high specific resistivity, high chemical activity, low ash content, low aluminum, low sulfur and low phosphorus. It is gradually replacing metallurgical coke and is widely used in the production of calcium carbide, ferroalloy, ferrosilicon, silicon carbide and other products, becoming an irreplaceable carbon material. Since the semi-coke produced is cooled by steam and spray water, it is screened by a high-temperature conveyor belt into the screening system, so a sieve plate is needed.

[0003] A Chinese patent document with the announcement number CN217512293U discloses a vibrating screen device for the production and processing of Poria cocos, which includes at least a box body, the top of which is missing, and a sieve plate is horizontally arranged inside the box body, both ends of the sieve plate are slidably connected to the inner wall of the box body on both sides through a limit mechanism, and the two side walls of the box body are rotatably connected to a rotating shaft located directly below the sieve plate, and one end of the rotating shaft passes through the side wall of the box body and is connected to a motor, and the rotating shaft is sleeved with two vibration mechanisms that are against the bottom of the sieve plate. The rotating shaft rotates to drive the rotating block to rotate, and whenever the pulley on the rotating block is at the highest point, the sieve plate will be lifted up, and under the action of the compression spring, the sieve plate will vibrate up and down periodically, and the Poria cocos will vibrate, causing impurities to fall through the filter screen and through holes.

[0004] The disadvantage of the above disclosed solution is that although the screen plate can be vibrated up and down periodically by the spring and impurities can be dropped through the filter screen and the through holes, the screening efficiency is relatively low and it is not convenient to clean the screen. Utility Model Content

[0005] The technical problem to be solved by the utility model is to overcome the existing defects and provide a new type of sieve plate for screening of lignite. The movable plate drives the knocking plate to knock the sieve plate under the action of the rebound component, thereby improving the screening efficiency of the sieve plate and facilitating the cleaning of the sieve, which can effectively solve the problems in the background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a new type of sieve plate for screening blue coal, comprising a box body, a frame is slidably arranged in the box body, a first spring is fixedly arranged between the frame and the bottom wall in the box body, a sieve plate is arranged in the frame, the sieve plate is made of special rubber material, a rotating shaft is arranged in the box body for horizontal rotation, a motor is fixedly arranged on the box body, the output end of the motor is fixedly connected to the rotating shaft, a driving member is arranged on the rotating shaft, the driving member drives the frame to move upward, a movable plate is arranged on the top of the box body, a rebound assembly is arranged between the movable plate and the top wall of the box body, a knocking plate is fixedly arranged on the bottom of the movable plate, a rotating plate is fixedly arranged at one end of the rotating shaft away from the motor, the end of the rotating plate away from the rotating shaft is arc-shaped, and when the arc-shaped end of the rotating plate contacts with the movable plate, it slides and cooperates and drives the movable plate to move up, and after the rotating plate is separated from the movable plate, the movable plate drives the knocking plate to knock the sieve plate under the action of the rebound assembly.

[0007] Furthermore, the driving member is a cam, which is fixedly sleeved on the rotating shaft, and a reinforcing rod is fixedly arranged in the middle of the bottom of the frame, and the protruding part of the cam slides and fits with the reinforcing rod when in contact.

[0008] Furthermore, the rebound assembly includes two guide columns, which are symmetrically fixed on the upper surface of the movable plate. The top of the guide column passes through the top wall of the box and is slidably connected to the box. A second spring is sleeved on the guide column and fixed between the movable plate and the top wall of the box.

[0009] Furthermore, the sieve plate is connected to the frame via expansion bolts.

[0010] Furthermore, a feed port is provided at the top of the box body, and a discharge pipe is provided at the bottom of the box body.

[0011] Furthermore, the box body is symmetrically provided with slide grooves, and sliders are fixedly provided on both sides of the frame, and the sliders are slidably connected with the corresponding slide grooves.

[0012] Furthermore, the knocking plate is made of special rubber material.

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

[0014] When one end of the rotating plate is in contact with the moving plate, it slides and drives the moving plate to move up. After the rotating plate is separated from the moving plate, the moving plate drives the knocking plate to knock the screen plate under the action of the rebound component. The motor drives the rotating shaft to rotate, and the rotating plate will also be driven to rotate when the rotating shaft rotates. When one end of the rotating plate is in contact with the bottom surface of the moving plate, the rotating plate continues to rotate, and one end of the rotating plate slides and drives the moving plate to move upward. The moving plate moves upward and compresses the second spring at the same time. When the rotating plate is separated from the moving plate, the moving plate moves downward under the action of the second spring reset force, and the moving plate drives the knocking plate downward to knock the screen plate, causing the screen plate to vibrate. On the one hand, it further improves the screening effect of blue carbon, and on the other hand, it can clean the screen surface of the screen plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a three-dimensional diagram of the structure of the utility model;

[0016] Figure 2 It is a cross-sectional view of the structure of the utility model;

[0017] Figure 3 A cross-sectional view of the structure of the utility model from another perspective;

[0018] Figure 4 This is a diagram showing the coordination of the frame and the cam of the structure of the utility model.

[0019] In the figure: 1. box body; 2. motor; 3. rotating shaft; 4. cam; 5. frame; 6. slide groove; 7. screen plate; 8. rotating plate; 9. moving plate; 10. first spring; 11. second spring; 12. guide column; 13. expansion bolt; 14. discharge pipe. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0021] See also Figure 1-Figure 4 The utility model provides a technical solution: a new type of sieve plate for screening semi-coke, comprising a box body 1, the bottom of which is evenly and fixedly provided with supporting legs, the top of which is provided with a feed port connected to the interior thereof, a cover plate being placed on the feed port, a discharge pipe 14 connected to the interior thereof being installed at the bottom center of the box body 1, and the bottom of the box body 1 is funnel-shaped, so that the screened semi-coke can be discharged from the discharge pipe 14 conveniently.

[0022] A partition is fixedly installed vertically in the box body 1, and the partition divides the interior of the box body 1 into a screening chamber and a containing chamber. A frame 5 is slidably installed in the screening chamber of the box body 1. Slide grooves 6 are symmetrically opened in the screening chamber of the box body 1, and sliders are fixedly installed on both sides of the frame 5. The sliders are slidably installed with the corresponding slide grooves 6. A first spring 10 is fixedly installed between the frame 5 and the bottom wall of the box body 1, wherein four first springs 10 are installed, and the four first springs 10 are respectively located at the four corners of the bottom surface of the frame 5. A sieve plate 7 is installed in the frame 5 through expansion bolts 13, and the sieve plate 7 is a special rubber material.

[0023] A rotating shaft 3 is installed horizontally and rotatably in the box body 1, and a motor 2 is fixedly installed on the outer side of the box body 1. The output end of the motor 2 passes through the box body 1 and is fixedly installed with the rotating shaft 3. A driving member is installed on the rotating shaft 3, and the driving member drives the frame 5 to move upward. The driving member is a cam 4, and the cam 4 is fixedly sleeved on the outer surface of the rotating shaft 3. A reinforcing rod is fixedly installed in the middle of the bottom of the frame 5, and the protruding part of the cam 4 slides and fits when in contact with the bottom surface of the reinforcing rod.

[0024] A movable plate 9 is installed on the top of the box body 1. A movable groove is provided on the top of the partition in the box body 1. The movable plate 9 passes through the movable groove horizontally and is installed in a sliding manner with the movable groove. One side of the movable plate 9 is located in the screening chamber, and the other side of the movable plate 9 is located in the accommodating chamber. A rebound assembly is installed between the movable plate 9 and the top wall in the box body 1. The rebound assembly includes two guide columns 12, which are symmetrically fixedly installed on the upper surface of the movable plate 9, one of which is located in the screening chamber of the box body 1, and the other guide column 12 is located in the accommodating chamber of the box body 1. The top of the guide column 12 passes through the top wall of the box body 1 and is installed in a sliding manner with the box body 1. The outer periphery of the guide column 12 is sleeved with a second spring 11, which is fixedly installed between the movable plate 9 and the top wall of the box body 1. One end of the second spring 11 is fixedly installed with the movable plate 9, and the other end of the second spring 11 is fixedly installed with the top wall in the box body 1.

[0025] A knocking plate is fixedly installed on the bottom surface of the movable plate 9 located on one side in the screening chamber. The knocking plate is made of special rubber material. The end of the rotating shaft 3 away from the motor 2 passes through the partition in the box body 1 and is fixedly sleeved with a rotating plate 8. The end of the rotating plate 8 away from the rotating shaft 3 is arc-shaped. When the arc-shaped end of the rotating plate 8 contacts the movable plate 9, it slides and cooperates and drives the movable plate 9 to move upward. After the rotating plate 8 is separated from the movable plate 9, the movable plate 9 drives the knocking plate to knock the screen plate 7 under the action of the rebound component. The bottom wall of the accommodating chamber in the box body 1 is provided with an avoidance groove connected to the outside of the box body 1. During the rotation of the rotating plate 8, the avoidance groove avoids the rotating plate 8 to prevent the bottom wall of the accommodating chamber from hindering the rotation of the rotating plate 8.

[0026] The sieve plate made of special rubber combines the advantages of good elasticity, high temperature resistance, wear resistance and corrosion resistance of special rubber. At the same time, by optimizing the screen structure, combining the high opening rate of steel woven screens and the high strength of punched screen plates, it effectively solves the "sticking, jamming and blocking" problems of blue carbon in traditional screening systems, which not only improves the screening efficiency, but also ensures sufficient screening area. The installation of special rubber screen plates uses wedge-type expansion bolts to expand and fix. Compared with the traditional screen plates connected and welded with steel bolts, it is simpler and more convenient, which can not only improve the maintenance efficiency, but also ensure the safety of maintenance construction. In addition, the special rubber screen plate is more convenient to clean, and it can be cleaned by lightly tapping the screen surface with a rubber hammer.

[0027] The working principle of a new type of sieve plate used for screening blue carbon provided by the utility model is as follows:

[0028] When in use, open the cover, pour the semi-coke onto the sieve plate 7 through the feed port, and close the cover. Start the motor 2, the motor 2 drives the shaft 3 to rotate, the shaft 3 drives the cam 4 to rotate, the protruding part of the cam 4 contacts the bottom surface of the reinforcing rod of the frame 5, and slides with the reinforcing rod, the cam 4 drives the frame 5 to move upward through the reinforcing rod, the frame 5 drives the sieve plate 7 to move upward, at this time the first spring 10 is stretched upward by the frame 5, when the protruding part of the cam 4 is out of contact with the reinforcing rod of the frame 5, the frame 5 and the sieve plate 7 move downward due to gravity and the reset force of the first spring 10, and through the characteristics of the first spring 10, the first spring 10 moves up and down to drive the frame 5 to move up and down, so that the frame 5 drives the sieve plate 7 to vibrate, which is beneficial to the screening of semi-coke.

[0029] When the rotating shaft 3 rotates, it will drive the rotating plate 8 to rotate. When the rotating plate 8 rotates a certain angle, one arc-shaped end of the rotating plate 8 contacts the bottom surface of the moving plate 9, and then the rotating plate 8 continues to rotate. One arc-shaped end of the rotating plate 8 slides with the bottom surface of the moving plate 9 and drives the moving plate 9 to move upward. The upward movement of the moving plate 9 drives the guide column 12 to move upward. The guide column 12 guides the moving plate 9, making the moving plate 9 more stable when moving up and down.

[0030] The moving plate 9 moves upward and compresses the second spring 11 at the same time. When the rotating plate 8 is separated from the moving plate 9, the moving plate 9 moves downward under the action of the restoring force of the second spring 11, and the moving plate 9 drives the knocking plate to knock the sieve plate 7 downward, so that the sieve plate 7 vibrates. When the rotating plate 8 is separated from the moving plate 9, the sieve plate 7 is lifted by the cam 4 and is in the highest position, that is, the height of the sieve plate 7 is higher than the bottom wall of the avoidance groove on the partition, so that the moving plate 9 drives the knocking plate to knock the sieve plate 7 downward. Finally, the screened semi-coke is discharged through the discharge pipe 14.

[0031] The role of the knocking plate on the sieve plate 7 is, on the one hand, to further improve the screening effect of the semi-coke, and on the other hand, to clean the screen surface of the sieve plate 7.

[0032] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A novel sieve plate for screening blue coal, comprising a box (1), characterized in that: A frame (5) is slidably arranged in the box (1), a first spring (10) is fixedly arranged between the frame (5) and the bottom wall in the box (1), a sieve plate (7) is arranged in the frame (5), the sieve plate (7) is made of special rubber material, a rotating shaft (3) is arranged horizontally in the box (1), a motor (2) is fixedly arranged on the box (1), the output end of the motor (2) is fixedly connected to the rotating shaft (3), a driving member is arranged on the rotating shaft (3), the driving member drives the frame (5) to move upward, and a moving member is arranged on the top of the box (1). The movable plate (9) is provided with a rebound component between the movable plate (9) and the inner top wall of the box body (1); a knocking plate is fixedly provided at the bottom of the movable plate (9); a rotating plate (8) is fixedly provided at one end of the rotating shaft (3) away from the motor (2); the end of the rotating plate (8) away from the rotating shaft (3) is arc-shaped; when the arc-shaped end of the rotating plate (8) contacts the movable plate (9), the movable plate (9) is slidably matched and drives the movable plate (9) to move upward; after the rotating plate (8) is separated from the movable plate (9), the movable plate (9) drives the knocking plate to knock the screen plate (7) under the action of the rebound component.

2. The novel sieve plate for screening blue coal according to claim 1 is characterized in that: The driving member is a cam (4), which is fixedly sleeved on the rotating shaft (3). A reinforcing rod is fixedly arranged in the middle of the bottom of the frame (5), and the protruding part of the cam (4) slides and fits with the reinforcing rod when in contact.

3. The novel sieve plate for screening blue coal according to claim 1 is characterized in that: The rebound assembly comprises two guide columns (12), the two guide columns (12) are symmetrically fixedly arranged on the upper surface of the movable plate (9), the top of the guide column (12) passes through the top wall of the box body (1) and is slidably connected to the box body (1), and a second spring (11) is sleeved on the guide column (12), and the second spring (11) is fixedly arranged between the movable plate (9) and the top wall of the box body (1).

4. The novel sieve plate for screening blue coal according to claim 1 is characterized in that: The sieve plate (7) is connected to the frame (5) via expansion bolts (13).

5. The novel sieve plate for screening blue coal according to claim 1 is characterized in that: The top of the box body (1) is provided with a feed inlet, and the bottom of the box body (1) is provided with a discharge pipe (14).

6. The novel sieve plate for screening blue coal according to claim 1 is characterized in that: The box body (1) is symmetrically provided with sliding grooves (6), and sliding blocks are fixedly provided on both sides of the frame (5), and the sliding blocks are slidably connected to the corresponding sliding grooves (6).

7. The novel sieve plate for screening blue coal according to any one of claims 1 to 6, characterized in that: The knocking plate is made of special rubber material.

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