Device for reducing hole blocking of screen mesh produced by semi-dry method
By using a combination of screening box, vibrating motor and high-pressure spray washing in semi-dry production, the problem of screen clogging was solved, and efficient screening and high-quality product production were achieved.
Patent Information
- Application Number
- CN202423152674.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-20
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2034-12-20
AI Technical Summary
In semi-dry production, screens are easily adhered to and accumulated by impurities such as mud and clay in sand and gravel aggregates, leading to screen blockage and affecting screening efficiency and product quality.
The device includes a screening box, a vibrating motor, a cylinder, a high-pressure nozzle, and a screen cleaning assembly. It removes mud and clay from the screen holes by combining vibrating screening and high-pressure spray washing. The servo motor drives the screen frame to rotate and the cylinder pushes the cleaning plate to remove hard objects and restore the screen to a smooth state.
It effectively reduces screen clogging, improves screening efficiency and product quality, and ensures efficient screening operations.
Smart Images
Figure CN223819121U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of sand and gravel aggregate processing and production, in particular to a hole blocking device for reducing screen mesh in semi-dry method production. BACKGROUND
[0002] In the field of building materials, semi-dry method production is commonly used for the forming of refractory materials. For example, refractory material raw materials are pressed into green bodies using mechanical equipment such as friction brick presses, lever brick presses, hydraulic presses, etc. These devices can effectively process the raw materials, which are moist but not in a completely liquid state, into products with a certain shape and strength, laying the foundation for the subsequent high-temperature sintering process. Semi-dry method production is a widely used production process that combines the advantages of wet and dry methods to achieve an efficient and energy-saving production process by controlling the moisture content of the materials.
[0003] As one of the core devices in semi-dry method production, the screen mesh is mainly used for screening materials to separate aggregates of different particle sizes. However, due to the presence of impurities such as mud blocks and clay in sand and gravel aggregates, and the adhesion and aggregation of materials during the screening process due to changes in moisture content and particle size, the screen mesh holes are easily blocked, which affects the screening efficiency and product quality. SUMMARY
[0004] To improve the problem of the presence of impurities such as mud blocks and clay in sand and gravel aggregates, and the adhesion and aggregation of materials during the screening process due to changes in moisture content and particle size, which leads to the blocking of screen mesh holes, the utility model provides a hole blocking device for reducing screen mesh in semi-dry method production.
[0005] The utility model provides a hole blocking device for reducing screen mesh in semi-dry method production, which adopts the following technical scheme:
[0006] A hole blocking device for reducing screen mesh in semi-dry method production, comprising a screening box, a screen frame is installed in the inner cavity of the screening box, a rotating assembly is provided on the inner wall of the screening box and the screen frame, a vibration motor is installed at the lower end of the left side of the screen frame, a screening mesh is installed at the lower end of the inner cavity of the screen frame, and a controller is installed on the front of the screening box.
[0007] A first air cylinder is sleeved on the upper end of the right side of the screening box, a connecting block is connected to the output end of the first air cylinder, a high-pressure spray head is connected to the bottom of the connecting block, a water inlet pipe is sleeved on one end of the right side of the screening box close to the first air cylinder, the water outlet end of the water inlet pipe is fixedly connected to the water inlet end of the high-pressure spray head, a hose is fixedly connected to the water inlet end of the water inlet pipe through a joint, a connecting frame is installed on the upper end of the left side of the screening box, a mesh cleaning assembly is arranged in the connecting frame, a feed hopper is connected to the middle of the top of the screening box, and the output end of the controller is electrically connected to the input end of the vibration motor and the first air cylinder, respectively.
[0008] By adopting the technical scheme, the sand and stone aggregate is put into the screen frame in the screening box through the feeding hopper, the vibration motor is started through the controller to vibrate the screen frame and the screen to screen the sand and stone, after the screening is completed, the first air cylinder is started through the controller, the first air cylinder pushes the connecting block to move left, the connecting block drives the high-pressure nozzle to move left, water is injected into the hose at the same time, the water enters the inside of the high-pressure nozzle through the water inlet pipe and is sprayed out through the high-pressure nozzle to flush the screen, the mud and clay in the screen holes are washed away, so that the screen is blocked, the screening efficiency of the material and the product quality are improved.
[0009] Optionally, the rotating assembly comprises two connecting shafts, the two connecting shafts are respectively installed on the left and right sides of the inner wall of the screening box through bearings, the two connecting shafts are respectively fixedly connected to the middle parts on the left and right sides of the screen frame, the rear side of the left connecting shaft is provided with a servo motor, the servo motor is fixedly connected to the left side of the inner wall of the screening box, the power output end of the servo motor is fixedly connected with a driving gear, the outer side of the left connecting shaft is fixedly sleeved with a driven gear, the driving gear and the driven gear are meshed with each other, and the output end of the controller is electrically connected with the input end of the servo motor.
[0010] By adopting the technical scheme, the servo motor drives the driving gear to rotate when working, the driving gear drives the driven gear to rotate, and the driven gear drives the connecting shaft to rotate, so that the screen frame can be turned over, and the screen holes on the screen can be cleaned by cooperating with the screen cleaning assembly.
[0011] Optionally, the left and right sides of the inner wall of the screening box are fixedly connected with dust covers, the two connecting shafts are respectively sleeved on the two groups of dust covers, the servo motor, the driving gear and the driven gear are located in the inside of the left dust cover, the sides of the two groups of dust covers close to the screen frame are respectively provided with movable holes, and the ends of the connecting shafts close to the screen frame are movably sleeved in the movable holes and penetrate to the outside of the dust covers.
[0012] By adopting the technical scheme, the sand and stone aggregate and dust are prevented from falling on the servo motor, the driving gear, the driven gear and the bearing, and smooth rotation of the connecting shaft is ensured.
[0013] Optionally, the end of the outer side of the connecting shaft close to the screen frame is fixedly sleeved with a baffle, the baffle is arranged on the outer side of the dust cover, and the side of the baffle away from the screen frame is attached to the side of the dust cover close to the screen frame.
[0014] By adopting the technical scheme, the sand and stone aggregate and dust are prevented from falling on the servo motor, the driving gear, the driven gear and the bearing, and smooth rotation of the connecting shaft is ensured.
[0015] Optionally, the screen cleaning assembly includes a second cylinder, which is fixedly sleeved on the left side of the fixing rod. A connecting plate is fixedly connected to the output end of the second cylinder. A third cylinder is fixedly connected to both the front and rear sides of the connecting plate. A cleaning plate is fixedly connected to the bottom of both sets of the third cylinders. Several needles are fixedly connected to the bottom of the cleaning plate. The output end of the controller is electrically connected to the input ends of the second cylinder and the third cylinder, respectively.
[0016] By adopting the above technical solution, the second cylinder starts to push the connecting plate and cleaning plate into the interior of the screening box, and the third cylinder pushes the cleaning plate and the needle downward, thereby pushing out hard objects such as stones stuck in the screen holes of the screening screen.
[0017] Optionally, the connecting plate is symmetrically connected to a fixing rod on the side opposite to the second cylinder, and the right ends of the two fixing rods are jointly fixedly connected to a second dustproof plate, with the left side of the second dustproof plate fitting against the right side of the fixing rod.
[0018] By adopting the above technical solution, it is possible to effectively prevent sand and gravel aggregates from falling into the interior of the second dustproof plate.
[0019] Optionally, a first support plate is fixedly connected to the rear side of the screening box, and a second support plate is fixedly connected to the top of the first support plate on the side away from the screening box. A fourth cylinder is fixedly sleeved on both the left and front / back sides of the middle of the second support plate. A collection frame is fixedly connected to the output ends of the two sets of fourth cylinders. The bottom of the collection frame is in contact with the top of the first support plate. A connection opening is provided on the rear side of the screening box near the collection frame. The connection opening is adapted to the collection frame. A drain pipe is fixedly connected to the bottom of the collection frame on the side away from the screening box. The output end of the controller is electrically connected to the input end of the fourth cylinder.
[0020] By adopting the above technical solution, the fourth cylinder is activated to push the collection frame to move and enter the interior of the screening box. The collection frame collects the water used for rinsing and the cleaned sand and gravel aggregates, thereby preventing water and sand and gravel aggregates that do not meet the size requirements from entering the subsequent processing equipment.
[0021] Optionally, connecting rods are fixedly connected to the four corners of the collection frame away from the fourth cylinder. The four sets of connecting rods are connected to a baffle on the side away from the collection frame. The baffle is located inside the screening box, and the side of the baffle close to the collection frame is in contact with the inner wall of the screening box.
[0022] By adopting the above technical solution, the connection opening is blocked by a baffle, preventing sand and gravel aggregates from splashing from the connection opening to the outside of the screening box during screening operations.
[0023] Optionally, a protective cylinder is fixedly connected to the upper right side of the inner wall of the screening box. The connecting block, the high-pressure nozzle, the left end of the first cylinder and the left end of the water inlet pipe are all located inside the protective cylinder. A first dustproof plate is installed on the end of the high-pressure nozzle away from the water inlet pipe. The right side of the first dustproof plate is in contact with the left side of the protective cylinder.
[0024] By adopting the above technical solution, sand and gravel aggregates and dust are prevented from falling onto the first cylinder, connecting block, high-pressure nozzle, and water inlet pipe.
[0025] Optionally, the bottom of both sides of the screening box is connected to a fixed base, and the front and rear sides of the two sets of fixed bases are provided with assembly holes.
[0026] By adopting the above technical solution, bolts are inserted into the corresponding assembly holes, making it easier to fix the screening box onto subsequent processing equipment.
[0027] In summary, this utility model has at least one of the following beneficial effects:
[0028] By using the coordinated arrangement of the first cylinder, connecting block, high-pressure nozzle, water inlet pipe and hose, water can be used to flush the screening screen, removing mud, clay and other debris located in the screen holes, thereby reducing screen blockage and improving material screening efficiency and product quality.
[0029] The combination of connecting shaft, servo motor, drive gear and driven gear facilitates the rotation of the screen frame. At the same time, the cooperation of the second cylinder, connecting plate, third cylinder, cleaning plate and needle can push out hard objects such as stones stuck in the screen holes, restore the unobstructed state of the screening screen and ensure the efficiency of the screening operation.
[0030] Through the coordinated arrangement of the first support plate, the second support plate, the fourth cylinder, and the collection frame, the water during washing and the sand and gravel left on the sieve after screening will eventually fall into the collection frame for unified collection, thereby preventing water and sand and gravel aggregates that do not meet the size requirements from entering the subsequent processing equipment. Attached Figure Description
[0031] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0032] Figure 1 This is a schematic diagram of the main structure of this utility model;
[0033] Figure 2This is a cross-sectional structural diagram of the present invention;
[0034] Figure 3 This is a side sectional view of the present invention.
[0035] Figure 4 This is a top view of the connecting frame structure of this utility model;
[0036] Figure 5 This is a top view of the structure of this utility model.
[0037] In the diagram: 1. Screening box; 2. Screen frame; 3. Screening mesh; 4. First cylinder; 5. Connecting block; 6. High-pressure nozzle; 7. Water inlet pipe; 8. Hose; 9. Connecting frame; 10. Screen cleaning assembly; 101. Second cylinder; 102. Connecting plate; 103. Third cylinder; 104. Cleaning plate; 105. Needle; 11. Feed hopper; 12. Connecting shaft; 13. Servo motor; 14. Drive gear; 15. Driven gear; 16. Dust cover; 17. Baffle; 18. First support plate; 19. Second support plate; 20. Fourth cylinder; 21. Collection frame; 22. Connecting opening; 23. Drain pipe; 24. Connecting rod; 25. Baffle; 26. Protective cylinder; 27. First dustproof plate; 28. Fixing rod; 29. Second dustproof plate; 30. Fixing seat; 31. Assembly hole; 32. Controller. Detailed Implementation
[0038] The following is in conjunction with the appendix Figures 1-5 The present invention will be described in further detail below.
[0039] Please refer to the attached diagram in the instruction manual. Figure 1 , Figure 2 and Figure 5 This utility model provides an embodiment of a device for reducing screen clogging in semi-dry production, comprising a screening box 1, a screen frame 2 installed in the inner cavity of the screening box 1, and fixed seats 30 fixedly connected to the bottom of both sides of the screening box 1. Assembly holes 31 are provided on the front and rear sides of both sets of fixed seats 30. Bolts are inserted into the corresponding assembly holes 31 to facilitate fixing the screening box 1 to subsequent processing equipment.
[0040] Please refer to the attached diagram in the instruction manual. Figure 2 , Figure 3 and Figure 5The inner walls of the screen frame 2 and the screening box 1 are equipped with rotating components. A vibration motor is installed at the lower left end of the screen frame 2, and a screen 3 is installed at the lower end of the inner cavity of the screen frame 2. A controller 32 is installed on the front of the screening box 1. The rotating components include two connecting shafts 12. The two connecting shafts 12 are rotatably installed on the left and right sides of the inner wall of the screening box 1 through bearings. The ends of the two connecting shafts 12 that are close to each other are fixedly connected to the middle of the two sides of the screen frame 2. A servo motor 13 is installed on the rear side of the left connecting shaft 12. The servo motor 13 is fixedly connected to the left side of the inner wall of the screening box 1. A drive gear 14 is fixedly connected to the power output end of the servo motor 13. A driven gear 15 is fixedly sleeved on the outer side of the left connecting shaft 12. The drive gear 14 and the driven gear 15 mesh with each other. The output end of the controller 32 is electrically connected to the input end of the servo motor 13. When the servo motor 13 is working, it drives the drive gear 14 to rotate. The rotation of the drive gear 14 drives the driven gear 15 to rotate. The rotation of the driven gear 15 drives the connecting shaft 12 to rotate, thereby enabling the screen frame 2 to flip and cooperate with the screen cleaning assembly to clean the screen holes on the screen 3.
[0041] Please refer to the attached diagram in the instruction manual. Figure 2 and Figure 5 Dust covers 16 are fixedly connected to both the left and right sides of the inner wall of the screening box 1. Two connecting shafts 12 are respectively sleeved on the two sets of dust covers 16. The servo motor 13, the drive gear 14, and the driven gear 15 are all located inside the left dust cover 16. The two sets of dust covers 16 have movable holes on the side near the screen frame 2. The end of the connecting shaft 12 near the screen frame 2 is movably sleeved in the movable hole and extends to the outside of the dust cover 16. This prevents sand and gravel aggregates and dust from falling on the servo motor 13, drive gear 14, driven gear 15, and bearings, ensuring the smooth rotation of the connecting shaft 12.
[0042] Please refer to the attached diagram in the instruction manual. Figure 2 and Figure 5 A baffle 17 is fixedly sleeved on the outer end of the connecting shaft 12 near the screen frame 2. The baffle 17 is located on the outside of the dust cover 16, and the side of the baffle 17 away from the screen frame 2 is in contact with the side of the dust cover 16 near the screen frame 2. This prevents sand and gravel aggregates and dust from entering the movable holes on the dust cover 16, which could cause the connecting shaft 12 to jam.
[0043] Please refer to the attached diagram in the instruction manual. Figure 1 and Figure 2A first cylinder 4 is fitted onto the upper right side of the screening box 1. A connecting block 5 is connected to the output end of the first cylinder 4, and a high-pressure nozzle 6 is connected to the bottom of the connecting block 5. A water inlet pipe 7 is fitted onto the right side of the screening box 1 near the first cylinder 4. A protective cylinder 26 is fixedly connected to the upper right side of the inner wall of the screening box 1. The connecting block 5, the high-pressure nozzle 6, the left end of the first cylinder 4, and the left end of the water inlet pipe 7 are all located inside the protective cylinder 26. A first dustproof plate 27 is installed on the end of the high-pressure nozzle 6 facing away from the water inlet pipe 7, and the right side of the first dustproof plate 27 is in contact with the left side of the protective cylinder 26. This prevents sand and gravel aggregates and dust from falling onto the first cylinder 4, the connecting block 5, the high-pressure nozzle 6, and the water inlet pipe 7.
[0044] Please refer to the attached diagram in the instruction manual. Figure 1 , Figure 2 and Figure 4 The outlet end of the water inlet pipe 7 is fixedly connected to the inlet end of the high-pressure nozzle 6. The inlet end of the water inlet pipe 7 is fixedly connected to the hose 8 through a connector. A connecting frame 9 is installed on the upper left side of the screening box 1. A screen cleaning assembly 10 is set inside the connecting frame 9. The screen cleaning assembly 10 includes a second cylinder 101. The second cylinder 101 is fixedly sleeved on the left side of the fixing rod 28. A connecting plate 102 is fixedly connected to the output end of the second cylinder 101. A third cylinder 103 is fixedly connected to both the front and rear sides of the connecting plate 102. A cleaning plate 104 is fixedly connected to the bottom of both sets of third cylinders 103. Several needles 105 are fixedly connected to the bottom of the cleaning plate 104. The output end of the controller 32 is electrically connected to the input ends of the second cylinder 101 and the third cylinder 103 respectively. The second cylinder 101 starts and pushes the connecting plate 102 and the cleaning plate 104 into the interior of the screening box 1. The third cylinder 103 pushes the cleaning plate 104 and the needle 105 downward, thereby pushing out hard objects such as stones stuck in the screen holes of the screening screen 3.
[0045] Please refer to the attached diagram in the instruction manual. Figure 2 and Figure 3 A fixing rod 28 is symmetrically connected to the side of the connecting plate 102 opposite to the second cylinder 101. The right ends of the two fixing rods 28 are jointly fixed to a second dustproof plate 29, and the left side of the second dustproof plate 29 is in contact with the right side of the fixing rod 28. This effectively prevents sand and gravel aggregate from falling into the interior of the second dustproof plate 29. A feed hopper 11 is connected to the middle of the top of the screening box 1. The output end of the controller 32 is electrically connected to the input end of the vibrating motor and the first cylinder 4, respectively.
[0046] Please refer to the attached diagram in the instruction manual. Figure 3 and Figure 5A first support plate 18 is fixedly connected to the rear side of the screening box 1. A second support plate 19 is fixedly connected to the top of the first support plate 18 on the side away from the screening box 1. A fourth cylinder 20 is fixedly sleeved on both the left and right sides of the middle of the second support plate 19. A collection frame 21 is fixedly connected to the output ends of the two sets of fourth cylinders 20. The bottom of the collection frame 21 is flush with the top of the first support plate 18. A connection opening 22 is provided on the rear side of the screening box 1 near the collection frame 21, and the connection opening 22 is adapted to the collection frame 21. A drain pipe 23 is fixedly connected to the bottom of the collection frame 21 on the side away from the screening box 1. The output end of the controller 32 is electrically connected to the input end of the fourth cylinder 20. When the fourth cylinder 20 is activated, it pushes the collection frame 21 to move and enter the interior of the screening box 1. The collection frame 21 collects the rinsing water and the cleaned sand and gravel aggregate, thereby preventing water and non-compliant sand and gravel aggregate from entering the subsequent processing equipment.
[0047] Please refer to the attached diagram in the instruction manual. Figure 2 , Figure 3 and Figure 5 Connecting rods 24 are fixedly connected to the four corners of the collection frame 21 on the side away from the fourth cylinder 20. The four sets of connecting rods 24 on the side away from the collection frame 21 are connected to a baffle 25, which is located inside the screening box 1. The side of the baffle 25 closest to the collection frame 21 is in contact with the inner wall of the screening box 1. The baffle 25 blocks the connection opening 22, preventing sand and gravel aggregate from splashing from the connection opening 22 to the outside of the screening box 1 during screening operations.
[0048] Working principle: In use, sand and gravel aggregates are first fed into the screen frame 2 inside the screening box 1 through the feed hopper 11. The vibrating motor is started by the controller 32, causing the screen frame 2 and the screen mesh 3 to vibrate and screen the sand and gravel. After screening, the fourth cylinder 20 is started by the controller 32. The fourth cylinder 20 pushes the collection frame 21 to move into the inner cavity of the screening box 1 and is located below the screen frame 2. Then, the first cylinder 4 is started by the controller 32. The first cylinder 4 pushes the connecting block 5 to move to the left. The connecting block 5 drives the high-pressure nozzle 6 to move to the left. At the same time, water is injected into the hose 8. The water enters the interior of the high-pressure nozzle 6 through the water inlet pipe 7 and is sprayed out by the high-pressure nozzle 6 to wash the screen mesh 3, washing away mud, clay and other debris located in the screen holes of the screen mesh 3, thereby reducing the clogging of the screen mesh 3 and improving the screening efficiency and product quality.
[0049] When hard objects such as stones clog the screen holes of the sieve 3, the servo motor 13 can be started by the controller 32. The servo motor 13 drives the drive gear 14 to rotate, the drive gear 14 drives the driven gear 15 to rotate, the driven gear 15 drives the connecting shaft 12 at the left end to rotate, and with the cooperation of the connecting shaft 12 at the right end, the screen frame 2 is driven to rotate, so that the screen frame 2 is rotated 90°.
[0050] Then, the controller 32 controls the second cylinder 101 to start, which pushes the connecting plate 102 to move to the right, so that the cleaning plate 104 moves above the screen frame 2. At this time, the controller 32 controls the third cylinder 103 to start, which pushes the cleaning plate 104 down, so that the needles 105 at the bottom of the cleaning plate 104 are inserted into the screen holes of the screen 3, pushing out hard objects such as stones stuck in the screen holes, thereby restoring the screen 3 to an unobstructed state and ensuring the efficiency of the screening operation.
[0051] The water from rinsing and the sand and gravel left on the screening screen 3 after screening will fall into the collection frame 21 for unified collection, thereby preventing water and sand and gravel aggregates that do not meet the size requirements from entering the subsequent processing equipment. After cleaning, the controller 32 controls the fourth cylinder 20 to retract. The retraction of the fourth cylinder 20 drives the collection frame 21 to move out of the screening box 1, which makes it convenient for the staff to clean the impurities inside the collection frame 21. The water can be discharged from the collection frame 21 through the drain pipe 23.
[0052] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.
Claims
1. A device for reducing screen clogging in semi-dry production, comprising a screening box (1), characterized in that: The inner cavity of the screening box (1) is equipped with a screen frame (2), and the screen frame (2) and the inner wall of the screening box (1) are provided with a rotating component. A vibration motor is installed at the lower left end of the screen frame (2), and a screen mesh (3) is installed at the lower end of the inner cavity of the screen frame (2). A controller (32) is installed on the front of the screening box (1). The upper right side of the screening box (1) is fitted with a first cylinder (4), the output end of the first cylinder (4) is connected to a connecting block (5), the bottom of the connecting block (5) is connected to a high-pressure nozzle (6), the right side of the screening box (1) near the first cylinder (4) is fitted with a water inlet pipe (7), the water outlet of the water inlet pipe (7) is fixedly connected to the water inlet of the high-pressure nozzle (6), the water inlet of the water inlet pipe (7) is fixedly connected to a hose (8) through a connector, the upper left side of the screening box (1) is fitted with a connecting frame (9), the inside of the connecting frame (9) is provided with a screen cleaning assembly (10), the middle of the top of the screening box (1) is connected to a feed hopper (11), and the output end of the controller (32) is electrically connected to the input end of the vibration motor and the first cylinder (4).
2. The device for reducing screen clogging in semi-dry production according to claim 1, characterized in that: The rotating assembly includes two connecting shafts (12), which are respectively mounted on the left and right sides of the inner wall of the screening box (1) via bearings. The ends of the two connecting shafts (12) that are close to each other are fixedly connected to the middle of the two sides of the screen frame (2). A servo motor (13) is provided on the rear side of the left connecting shaft (12). The servo motor (13) is fixedly connected to the left side of the inner wall of the screening box (1). The power output end of the servo motor (13) is fixedly connected to the drive gear (14). A driven gear (15) is fixedly sleeved on the outer side of the left connecting shaft (12). The drive gear (14) and the driven gear (15) mesh with each other. The output end of the controller (32) is electrically connected to the input end of the servo motor (13).
3. The device for reducing screen clogging in semi-dry production according to claim 2, characterized in that: Dust covers (16) are fixedly connected to the left and right sides of the inner wall of the screening box (1). Two connecting shafts (12) are respectively sleeved on the two sets of dust covers (16). The servo motor (13), the driving gear (14) and the driven gear (15) are all located inside the left dust cover (16). The two sets of dust covers (16) have movable holes on the side near the screen frame (2). The end of the connecting shaft (12) near the screen frame (2) is movably sleeved in the movable hole and extends to the outside of the dust cover (16).
4. The device for reducing screen clogging in semi-dry production according to claim 3, characterized in that: A baffle plate (17) is fixedly sleeved on the outer side of the connecting shaft (12) near the screen frame (2). The baffle plate (17) is located on the outside of the dust cover (16). The side of the baffle plate (17) away from the screen frame (2) is in contact with the side of the dust cover (16) near the screen frame (2).
5. The device for reducing screen clogging in semi-dry production according to claim 1, characterized in that: The cleaning assembly (10) includes a second cylinder (101), which is fixedly sleeved on the left side of the fixing rod (28). The output end of the second cylinder (101) is fixedly connected to a connecting plate (102). The front and rear sides of the connecting plate (102) are fixedly connected to third cylinders (103). The bottom of the two sets of third cylinders (103) is fixedly connected to a cleaning plate (104). The bottom of the cleaning plate (104) is fixedly connected to several needles (105). The output end of the controller (32) is electrically connected to the input end of the second cylinder (101) and the third cylinder (103).
6. The device for reducing screen clogging in semi-dry production according to claim 5, characterized in that: The connecting plate (102) is symmetrically connected to a fixing rod (28) on the side away from the second cylinder (101). The right ends of the two fixing rods (28) are jointly fixed to a second dustproof plate (29). The left side of the second dustproof plate (29) is in contact with the right side of the fixing rod (28).
7. The device for reducing screen clogging in semi-dry production according to claim 1, characterized in that: A first support plate (18) is fixedly connected to the rear side of the screening box (1). A second support plate (19) is fixedly connected to the top of the first support plate (18) away from the screening box (1). A fourth cylinder (20) is fixedly sleeved on both the left and front sides of the middle of the second support plate (19). A collection frame (21) is fixedly connected to the output end of the two sets of fourth cylinders (20). The bottom of the collection frame (21) is in contact with the top of the first support plate (18). A connection opening (22) is opened on the rear side of the screening box (1) near the collection frame (21). The connection opening (22) is adapted to the collection frame (21). A drain pipe (23) is fixedly connected to the bottom of the collection frame (21) away from the screening box (1). The output end of the controller (32) is electrically connected to the input end of the fourth cylinder (20).
8. The device for reducing screen clogging in semi-dry production according to claim 7, characterized in that: The four corners of the collection frame (21) away from the fourth cylinder (20) are fixedly connected with connecting rods (24). The four sets of connecting rods (24) are connected to a baffle (25) on the side away from the collection frame (21). The baffle (25) is located inside the screening box (1). The side of the baffle (25) close to the collection frame (21) is in contact with the inner wall of the screening box (1).
9. The device for reducing screen clogging in semi-dry production according to claim 1, characterized in that: A protective cylinder (26) is fixedly connected to the upper right side of the inner wall of the screening box (1). The left end of the connecting block (5), the high-pressure nozzle (6), the first cylinder (4), and the left end of the water inlet pipe (7) are all located inside the protective cylinder (26). A first dustproof plate (27) is installed on the end of the high-pressure nozzle (6) away from the water inlet pipe (7). The right side of the first dustproof plate (27) is in contact with the left side of the protective cylinder (26).
10. The device for reducing screen clogging in semi-dry production according to claim 1, characterized in that: The bottom of both sides of the screening box (1) is connected to a fixed seat (30), and the front and rear sides of the two sets of fixed seats (30) are provided with assembly holes (31).