A light calcium carbonate production solid waste screening box

Abstract

The utility model discloses a kind of solid waste screening boxes for light calcium carbonate production, including screening box, the screening box is provided with feed part and several discharge ports, the screening box is oppositely provided with drainage plate, and drainage plate bottom surface is provided with deslagging plate, the outer wall of drainage plate is opened, the outer wall of drainage plate is also provided with screening assembly, the screening assembly includes the screening plate that is evenly arranged on drainage plate, the outer wall of screening plate is opened and is evenly distributed with screening hole, motor drive reciprocating screw rod rotates, drive moving plate, shield frame and slider reciprocating motion, make contact block periodicity push arc surface block, arc surface block is cooperated through synchronous plate, plug post and sliding slot, drive first movable plate and second movable plate separate, expand screening hole size, so that the blocky calcium carbonate of jamming falls, realize automatic deslagging;Through this design, the waste residue of jamming can be cleaned in time, avoid that screening hole is blocked, guarantee screening efficiency.

Description

Technical Field

[0001] This utility model relates to the field of solid waste treatment technology, specifically a screening box for solid waste from the production of light calcium carbonate. Background Technology

[0002] Currently, light calcium carbonate, also known as precipitated calcium carbonate, can be used in industries such as rubber, plastics, papermaking, and coatings. Light calcium carbonate is produced by processing limestone as an ingredient. After the production of light calcium carbonate, a lot of calcium carbonate powder will stick to the waste residue. If it is directly treated as waste, it will be wasteful. Traditional screening devices usually pour the waste residue directly onto the screen and screen it with a vibrating motor. However, this method has poor screening effect, and the waste residue is easy to accumulate together, resulting in low screening efficiency.

[0003] A patent with publication number CN213051411U discloses a screening box for solid waste from the production of light calcium carbonate. The box includes a feed hopper, a first screening box, a second screening box, screening components, a vibrator, a frame, a bag filter, and connecting pipes. The feed hopper is fixedly installed on the top of the first screening box. This screening box uses a vibrator on the first screening box to vibrate, causing the screening components within the first screening box to perform preliminary screening of the input waste residue, separating out the main lumpy calcium carbonate. Then, a vibrator on the second screening box vibrates, causing the screening components within the second screening box to further screen the pre-screened waste residue, further removing the calcium carbonate powder adhering to its surface, thus increasing the yield of calcium carbonate powder. Simultaneously, the waste is discharged, and dust removal can be performed during screening, resulting in high working efficiency.

[0004] In the aforementioned prior art, during the screening process, some lumpy calcium carbonate may get stuck in the screening holes of the screening component. If these stuck lumpy calcium carbonate are not cleaned in time, they will gradually block the screening holes. As the usage time goes by, the number of blocked screening holes will increase, which will greatly reduce the screening area and cause the screening efficiency to gradually decrease. Utility Model Content

[0005] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be used to limit the scope of this utility model.

[0006] In view of the problems existing in the above and / or existing screening boxes for solid waste from the production of light calcium carbonate, this utility model is proposed.

[0007] To solve the above-mentioned technical problems, according to one aspect of the present invention, the present invention provides the following technical solution: A screening box for solid waste from the production of light calcium carbonate includes a screening box with a feed inlet and several discharge outlets. Inside the screening box, there are diversion plates facing each other, and a slag discharge plate is provided below the bottom surface of the diversion plates. Screening components are also provided on the outer wall of the diversion plates.

[0008] As a preferred embodiment of the solid waste screening box for light calcium carbonate production described in this utility model, the screening component includes a screening plate evenly arranged on the guide plate, and screening holes evenly distributed on the outer wall of the screening plate.

[0009] As a preferred embodiment of the solid waste screening box for light calcium carbonate production according to this utility model, the screening plate includes a support frame evenly arranged on the guide plate, and a second movable plate and a first movable plate are slidably installed on the top surface of the support frame respectively. Corresponding passage openings are provided on the outer walls of the second and first movable plates. Sliding grooves are provided oppositely on the outer walls of the first and second movable plates. An installation groove is provided on the outer wall of the guide plate, and an arc-shaped block is slidably installed in the installation groove. A synchronization plate is symmetrically arranged on one side of the arc-shaped block, and a [missing information - likely a design feature] is provided on the top surface of the synchronization plate. The screen is equipped with a column, which is inserted into a sliding groove and slidably assembled. The outer wall of the flow guide plate is also provided with a sliding hole that communicates with the mounting groove. A slider is slidably installed in the sliding hole. A contact block is provided under the bottom surface of the slider, and the contact block is adapted to the shape of the arc block. A shield is provided on the top of the slider. A movable plate is provided on one side of the shield and is inserted into the outside of the screening box and slidably assembled. A screw is rotatably installed on the outer wall of the screening box, and the screw is inserted into the movable plate and screwed to it. A motor is also provided on the outer wall of the screening box, and the output end of the motor is connected to the screw.

[0010] As a preferred embodiment of the lightweight calcium carbonate production solid waste screening box described in this utility model, the mounting groove is provided with uniformly distributed fixing plates, and a spring insert is provided on one side of the arc block, and the spring insert is inserted into the fixing plate and slidably installed.

[0011] As a preferred embodiment of the lightweight calcium carbonate production solid waste screening box described in this utility model, the shape of the shielding frame is adapted to the shape of the screening plate.

[0012] In a preferred embodiment of the lightweight calcium carbonate production solid waste screening box described in this utility model, the screw is configured as a reciprocating screw.

[0013] As a preferred embodiment of the lightweight calcium carbonate production solid waste screening box described in this utility model, the shielding frame is configured with a C-shaped structure.

[0014] Compared with the prior art, the beneficial effects of this utility model are: In this design, a motor drives a reciprocating screw to rotate, which in turn drives the moving plate, the shielding frame, and the slider to reciprocate. This causes the contact block to periodically push the arc-shaped block. The arc-shaped block, through the cooperation of the synchronous plate, the insert column, and the slide groove, causes the first and second movable plates to separate, expanding the size of the screening holes and causing the stuck blocky calcium carbonate to fall off, thus achieving automatic slag removal. This design can promptly clean up the stuck waste residue, prevent the screening holes from being blocked, and ensure screening efficiency. Attached Figure Description

[0015] To more clearly illustrate the technical solutions of the embodiments of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings and detailed embodiments. 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. Among them: Figure 1 This is a schematic diagram of the overall structure of a screening box for solid waste from the production of lightweight calcium carbonate according to this utility model. Figure 2 This is a schematic diagram of the internal structure of the screening box of a solid waste screening box for the production of lightweight calcium carbonate according to this utility model. Figure 3 for Figure 2 Enlarged view of point A in the middle; Figure 4 This is a schematic diagram of the screening plate structure of a screening box for solid waste from the production of lightweight calcium carbonate according to this utility model. Figure 5 This is a schematic diagram of the arc-shaped block and contact block of a screening box for solid waste from the production of lightweight calcium carbonate according to this utility model.

[0016] In the diagram: 1. Screening box; 2. Feeding section; 3. Discharge port; 4. Motor; 5. Screw; 6. Moving plate; 7. Diverting plate; 8. Screening assembly; 9. Through port; 10. Baffle frame; 11. Slag discharge plate; 12. Sliding block; 13. Sliding hole; 14. Screening plate; 15. First movable plate; 16. Second movable plate; 17. Through port; 18. Support frame; 19. Mounting groove; 20. Slide groove; 21. Insert column; 22. Synchronization plate; 23. Fixing plate; 24. Spring insert rod; 25. Arc block; 26. Contact block. Detailed Implementation

[0017] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0018] Secondly, this utility model is described in detail with reference to the schematic diagrams. When describing the embodiments of this utility model, for ease of explanation, the cross-sectional views showing the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of this utility model. In addition, in actual manufacturing, the three-dimensional spatial dimensions of length, width, and depth should be included.

[0019] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Example

[0020] Please see Figures 1-5 This utility model provides a technical solution: A screening box for solid waste from the production of light calcium carbonate can automatically clean up lumps of calcium carbonate stuck in the screening holes, preventing the screening holes from becoming blocked, ensuring the screening area, and improving screening efficiency.

[0021] The solid waste screening box for light calcium carbonate production includes a screening box 1, which is a rectangular box made of stainless steel, which is corrosion-resistant and durable. The top of the screening box 1 is equipped with a feeding section 2 for feeding in the solid waste to be screened; the bottom and sides are equipped with several discharge ports 3 for discharging the screened calcium carbonate powder and waste residue, respectively.

[0022] Inside the screening box 1, there are opposing guide plates 7. The guide plates 7 are inclined metal plates with an inclination angle of 30-45 degrees to facilitate material flow. A slag discharge plate 11 is welded to the bottom surface of the guide plates 7. The slag discharge plate 11 is also inclined and is used to discharge the screened waste residue. A material leakage port 9 is opened on the outer wall of the guide plates 7 to allow the screened calcium carbonate powder to fall to the next layer. A screening assembly 8 is also provided on the outer wall of the guide plates 7 for screening materials. The screening assembly 8 includes screening plates 14 evenly arranged on the guide plates 7. The outer wall of the screening plates 14 has evenly distributed screening holes. 14 includes a support frame 18 uniformly welded onto the diversion plate 7. A second movable plate 16 and a first movable plate 15 are slidably mounted on the top surface of the support frame 18. The second movable plate 16 and the first movable plate 15 can slide along the support frame 18. Corresponding through holes 17 are opened on the outer walls of the second movable plate 16 and the first movable plate 15. The through holes 17 are combined to form a screening hole. Sliding grooves 20 are opened opposite to each other on the outer walls of the first movable plate 15 and the second movable plate 16. An installation groove 19 is opened on the outer wall of the diversion plate 7. An arc surface block 25 is slidably mounted in the installation groove 19. The arc surface block 25 can slide in the installation groove 19. A synchronous plate 22 is symmetrically welded to one side of the arc-shaped block 25. A post 21 is welded to the top surface of the synchronous plate 22. The post 21 is inserted into the sliding groove 20 and slidably assembled. When the arc-shaped block 25 moves, the first movable plate 15 and the second movable plate 16 are driven to slide through the post 21 and the sliding groove 20. A sliding hole 13 communicating with the mounting groove 19 is also opened on the outer wall of the diversion plate 7. A slider 12 is slidably installed in the sliding hole 13. A contact block 26 is welded to the bottom surface of the slider 12. The contact block 26 is adapted to the shape of the arc-shaped block 25 and can push the arc-shaped block 25 to move. The sliding block 12 has a shield 10 welded to its top. The shield 10 is shaped to match the screening plate 14 and is configured as a C-shape. It is used to shield the material when the movable plate of the screening plate 14 is separated, preventing material leakage. A movable plate 6 is welded to one side of the shield 10. The movable plate 6 is inserted into the outside of the screening box 1 and slidably assembled. It can slide along the outer wall of the screening box 1. A screw 5 is rotatably installed on the outer wall of the screening box 1 through a bearing. The screw 5 is configured as a reciprocating screw. The movable plate 6 is inserted and screwed into it. Rotating the screw 5 can drive the movable plate 6 to reciprocate. A motor 4 is fixed to the outer wall of the screening box 1 by bolts. The output end of the motor 4 is connected to the screw 5 through a coupling to provide power for the rotation of the screw 5. A uniformly distributed fixing plate 23 is welded in the mounting groove 19. A spring rod 24 is welded to one side of the arc block 25. The spring rod 24 is inserted into the fixing plate 23 and slidably installed. A spring is sleeved on the spring rod 24 so that the arc block 25 can be reset when no external force is applied.

[0023] Motor 4 drives reciprocating screw 5 to rotate, causing moving plate 6, shielding frame 10 and slider 12 to reciprocate. This causes contact block 26 to periodically push arc block 25. Arc block 25, through the cooperation of synchronous plate 22, insert post 21 and slide groove 20, causes first movable plate 15 and second movable plate 16 to separate, expanding the size of the screening hole and causing the blocked blocky calcium carbonate to fall off, achieving automatic slag removal. After contact block 26 leaves, spring insert rod 24 resets arc block 25, causing movable plate to close and restoring screening function. Shielding frame 10 blocks when movable plate separates to prevent material leakage and ensure normal screening process. Through this periodic opening and closing action of movable plate, blocked waste is cleaned in time, preventing screening hole blockage, maintaining screening area and ensuring screening efficiency.

[0024] In use, the light calcium carbonate production solid waste to be screened is fed into the screening box 1 through the feeding section 2. The material falls onto the guide plate 7 under the action of gravity and slides down along the guide plate 7. During the sliding process, the material passes through the screening component 8. Calcium carbonate powder smaller than the screening hole falls through the screening hole and the discharge port 9 to the next layer of guide plate 7 to continue the next round of screening. Finally, it is discharged through the corresponding discharge port 3. The blocky waste residue larger than the screening hole slides along the guide plate 7 to the slag discharge plate 11 and is discharged from the corresponding discharge port 3 through the slag discharge plate 11. During the screening process, the motor 4 is started, and the motor 4 drives the screw 5 to rotate. Since the screw 5 is a reciprocating screw and is screwed to the moving plate 6, it drives the moving plate 6, the shielding frame 10 and the slider 12 to move back and forth. The slider 12 drives the contact block 26 to slide within the sliding hole 13. When the contact block 26 contacts the arc-shaped block 25, it pushes the arc-shaped block 25 to slide within the mounting groove 19, compressing the spring rod 24. The arc-shaped block 25 drives the synchronous plate 22 and the insert post 21 to move. The insert post 21 slides within the sliding groove 20, causing the first movable plate 15 and the second movable plate 16 to slide along the support frame 18 and separate from each other. At this time, the size of the screening hole formed by the combination of the openings 17 increases, and the blocky calcium carbonate stuck in it falls off under the action of gravity. At the same time, the shielding frame 10 moves with the slider 12. At the screening plate 14, the first movable plate 15 and the second movable plate 16 are blocked to prevent material leakage. When the contact block 26 separates from the arc block 25, the arc block 25 is reset under the elastic force of the spring rod 24, which drives the first movable plate 15 and the second movable plate 16 to close again and restore the original screening hole size. With the reciprocating motion of the moving plate 6, the shielding frame 10 periodically guides the first movable plate 15 and the second movable plate 16 at different positions to separate and close, so as to realize the automatic cleaning of the waste residue stuck on each screening plate 14.

[0025] Although the present invention has been described above with reference to embodiments, various modifications can be made and components can be replaced with equivalents without departing from the scope of the present invention. In particular, as long as there is no structural conflict, the features in the embodiments disclosed in this invention can be combined with each other in any way. The lack of an exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. A screening box for solid waste from the production of light calcium carbonate, characterized in that, The system includes a screening box (1), which is provided with a feed section (2) and several discharge ports (3). Inside the screening box (1), there are opposing guide plates (7), and a slag discharge plate (11) is provided below the bottom surface of the guide plate (7). The guide plate (7) has a (9) on its outer wall, and a screening component (8) is also provided on the outer wall of the guide plate (7). The screening component (8) includes a screening plate (14) evenly arranged on the guide plate (7), and the screening plate (14) has evenly distributed screening holes on its outer wall. The screening plate (14) includes a support frame (18) evenly arranged on the diversion plate (7), and a second movable plate (16) and a first movable plate (15) are slidably installed on the top surface of the support frame (18). The second movable plate (16) and the first movable plate (15) have corresponding passage openings (17) on their outer walls. The first movable plate (15) and the second movable plate (16) have opposing sliding grooves (20) on their outer walls. The diversion plate (7) has an installation groove (19) on its outer wall, and an arc-shaped block (25) is slidably installed in the installation groove (19). A synchronization plate (22) is symmetrically arranged on one side of the arc-shaped block (25). A post (21) is provided on the top surface of the synchronization plate (22), and the post (21) is inserted into the sliding groove (20) and slidably assembled. The diversion plate (7) also has a sliding hole (1) communicating with the installation groove (19) on its outer wall. 3) A slider (12) is slidably installed in the sliding hole (13). A contact block (26) is provided under the bottom surface of the slider (12), and the contact block (26) is adapted to the shape of the arc block (25). A shielding frame (10) is provided on the top of the slider (12). A moving plate (6) is provided on one side of the shielding frame (10), and the moving plate (6) is inserted into the outside of the screening box (1) and slidably assembled. A screw (5) is rotatably installed on the outer wall of the screening box (1), and the screw (5) is inserted into the moving plate (6) and screwed. A motor (4) is also provided on the outer wall of the screening box (1), and the output end of the motor (4) is connected to the screw (5). A fixed plate (23) is evenly distributed in the mounting groove (19). A spring insert (24) is provided on one side of the arc block (25), and the spring insert (24) is inserted into the fixed plate (23) and slidably installed.

2. The screening box for solid waste from light calcium carbonate production according to claim 1, characterized in that, The shape of the shield (10) is adapted to the shape of the sieve plate (14).

3. The screening box for solid waste from light calcium carbonate production according to claim 1, characterized in that, The screw (5) is configured as a reciprocating screw.

4. The screening box for solid waste from light calcium carbonate production according to claim 1, characterized in that, The shield (10) is configured in a C-shape.

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