Screening device for calcium carbonate processing

Abstract

The screening device for calcium carbonate processing comprises a screening box, a main force motor, a vibration motor, a screening plate and an S-shaped scraping plate, the bottom of the main force motor is fixedly connected with the top of the screening box, and the output end of the main force motor penetrates to the top of the inner wall of the screening box. By arranging the folding frame, when the S-shaped scraper blade is used for a long time, is excessively abraded and has an overlarge distance with the sieve plate, the folding frame is driven to be folded by utilizing the adjusting assembly, so that the S-shaped scraper blade is pushed to descend and is in contact with the sieve plate again, and the problems that the S-shaped scraper blade and the sieve plate are in a fit friction state for a long time, and the S-shaped scraper blade and the sieve plate are easily excessively abraded and are damaged are solved. The problem that part of calcium carbonate particles which cannot penetrate through the sieve plate are pushed out by the S-shaped scraper when the screening box is opened due to the fact that the gap between the S-shaped scraper and the sieve plate is too large is solved, and the effect of prolonging the service life of the S-shaped scraper is achieved.

Description

Technical Field

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

[0002] Calcium carbonate powder can be used as a filler in rubber, increasing product volume while reducing the amount of natural rubber used, thus lowering production costs. In the construction industry, calcium carbonate powder can reduce the production cost of concrete and increase its toughness and strength. In the plastics industry, calcium carbonate powder acts as a skeleton in plastic products, greatly contributing to the dimensional stability of the products, increasing their hardness, gloss, and smoothness. The uses of calcium carbonate powder with different particle sizes vary greatly, making the grading and screening of calcium carbonate powder essential.

[0003] For example, application number CN202121896414.9 describes a utility model belonging to the technical field of screening devices, specifically a grading and screening device for calcium carbonate powder. The device includes a screening box with a feed hopper fixedly connected to its upper surface and support feet fixedly installed on its side surface. This grading and screening device for calcium carbonate powder, by incorporating a rapid, clog-free screening mechanism, activates a vibrating main motor and a forward / reverse main motor. When the main motor rotates forward, it drives the S-shaped scraper to rotate forward, causing the calcium carbonate powder falling onto the fine screening plate to rotate and concentrate towards the center. This allows smaller particles of calcium carbonate to fall and be discharged through the fine material outlet. When the main motor rotates in reverse, it drives the S-shaped scraper to rotate in reverse, causing the calcium carbonate powder falling onto the fine screening plate to be rotated and pushed to the outside, and discharged through the coarse material outlet. By using the vibrating main motor to shake off the calcium carbonate powder adhering to the fine screening plate, the device effectively solves the technical problem of low screening efficiency in existing screening devices.

[0004] Based on the search of the aforementioned patents and the findings of existing equipment, while the aforementioned equipment can solve the problem of screening calcium carbonate powder, which usually relies on the gravity of the calcium carbonate itself, the existing screening devices are too complex, often using multiple screens for screening, which reduces the screening speed. In addition, small calcium carbonate powder particles are easy to adhere to the screens, which can easily cause screen blockage and result in low screening efficiency. However, during use, the S-shaped scraper and the screen plate are in a state of contact and friction for a long time, which can easily lead to excessive wear. This results in an excessively large gap between the S-shaped scraper and the screen plate, causing some calcium carbonate particles that cannot pass through the screen plate to be pushed out by the S-shaped scraper when the screening box is opened. However, directly replacing the S-shaped scraper is very wasteful. Utility Model Content

[0005] To address the problems mentioned in the background art, the purpose of this utility model is to provide a screening device for calcium carbonate processing, which has the advantage of improving the service life of the S-shaped scraper. It solves the problem that the S-shaped scraper and the screen plate are in a state of contact and friction for a long time, which easily leads to excessive wear and makes the gap between the S-shaped scraper and the screen plate too large. This causes some calcium carbonate particles that cannot pass through the screen plate to be pushed out by the S-shaped scraper when the screening box is opened. However, directly replacing the S-shaped scraper is very wasteful.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a screening device for calcium carbonate processing, comprising a screening box, a main motor, a vibrating motor, a sieve plate, and an S-shaped scraper. The bottom of the main motor is fixedly connected to the top of the screening box, and the output end of the main motor extends through to the top of the inner wall of the screening box. The surface of the sieve plate is fixedly connected to the bottom of the inner wall surface of the screening box. A folding frame is fixedly connected to the output end of the main motor. The top of the S-shaped scraper is fixedly connected to the bottom of the folding frame by bolts, and the bottom of the S-shaped scraper contacts the top of the sieve plate. An adjustment component is provided inside the folding frame, and positioning components are provided on both sides of the bottom of the inner wall of the folding frame.

[0007] As a preferred embodiment of this utility model, the adjustment component includes a bidirectional screw and a handwheel. Both sides of the bidirectional screw are threaded through to both sides of the folding frame. The left side of the handwheel is movably connected to the right side of the bidirectional screw, and a plug-in component is fixedly connected to the left side of the handwheel.

[0008] As a preferred embodiment of this utility model, the positioning component includes positioning holes, which are formed on both sides of the bottom of the inner wall of the folding frame. A positioning rod is slidably connected to the inner wall of the positioning hole, and the bottom of the positioning rod is connected to both sides of the top of the S-shaped scraper.

[0009] As a preferred embodiment of this utility model, the plug-in assembly includes a square block, the right side of which is fixedly connected to the left side of the handwheel, and square slots are provided on both sides of the bidirectional screw, with the square block plugged into one of the square slots.

[0010] As a preferred embodiment of this utility model, a tension spring is sleeved on the surface of the bidirectional screw, and the two ends of the tension spring are fixedly connected to the two sides of the inner wall of the folding frame.

[0011] As a preferred embodiment of this utility model, both ends of the surface of the bidirectional screw are movably fitted with mounting blocks, the inner side of the mounting blocks is fixed with a first corrugated pipe, the inner side of the first corrugated pipe is fixedly connected to both sides of the folding frame, and the surface of the bidirectional screw is fitted with a second corrugated pipe, the two sides of the second corrugated pipe are fixedly connected to both sides of the inner wall of the folding frame.

[0012] As a preferred embodiment of this utility model, telescopic rods are fixedly connected to the bottom of both sides of the folding frame, and U-shaped frames are fixedly connected to the top of the telescopic rods. The two sides of the inner side of the U-shaped frames are fixedly connected to the two sides of the mounting block.

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

[0014] 1. This utility model, by setting a folding frame, allows the S-shaped scraper to fold when it becomes excessively worn and the gap between it and the screen plate becomes too large after prolonged use. The adjusting component drives the folding frame to fold, thereby pushing the S-shaped scraper down and allowing it to contact the screen plate again. This solves the problem of the S-shaped scraper and the screen plate being in a state of constant contact and friction, which easily leads to excessive wear and an excessively large gap between them. This causes some calcium carbonate particles that cannot pass through the screen plate to be pushed out by the S-shaped scraper when the screening box is opened. However, directly replacing the S-shaped scraper is wasteful. This invention achieves the effect of improving the service life of the S-shaped scraper.

[0015] 2. This utility model, by setting an adjustment component, allows the user to easily rotate the bidirectional screw using the handwheel when the folding frame needs to fold, thereby driving the folding frame to open or close, and causing the S-shaped scraper to rise and fall. Then, through the self-locking characteristic of the bidirectional screw and the internal thread of the folding frame, the folding frame is immediately fixed after the bidirectional screw stops rotating, thus stabilizing the position of the S-shaped scraper after adjustment.

[0016] 3. By setting up a positioning component, when the folding frame is connected to the S-shaped scraper, the positioning hole and the positioning rod are inserted to initially position and connect the folding frame and the S-shaped scraper together, and then the screw holes on the folding frame and the S-shaped scraper are connected. Therefore, it is convenient for users to fix the connection with bolts, thereby improving the ease of operation. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0018] Figure 2 This is a cross-sectional view of the screening box of this utility model;

[0019] Figure 3 This is a cross-sectional view of the first corrugated pipe of this utility model and an exploded view of some parts.

[0020] In the diagram: 1. Screening box; 2. Main motor; 3. Vibrating motor; 4. Screen plate; 5. S-shaped scraper; 6. Folding frame; 7. Adjustment component; 71. Bidirectional screw; 72. Handwheel; 8. Positioning component; 81. Positioning hole; 82. Positioning rod; 9. Plug-in component; 91. Square block; 92. Square groove; 10. Tension spring; 11. Mounting block; 12. First corrugated pipe; 13. Second corrugated pipe; 14. Telescopic rod; 15. U-shaped frame. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] like Figures 1 to 3 As shown, the present invention provides a screening device for calcium carbonate processing, including a screening box 1, a main motor 2, a vibrating motor 3, a sieve plate 4, and an S-shaped scraper 5. The bottom of the main motor 2 is fixedly connected to the top of the screening box 1, and the output end of the main motor 2 extends through to the top of the inner wall of the screening box 1. The surface of the sieve plate 4 is fixedly connected to the bottom of the inner wall surface of the screening box 1. A folding frame 6 is fixedly connected to the output end of the main motor 2. The top of the S-shaped scraper 5 is fixedly connected to the bottom of the folding frame 6 by bolts. The bottom of the S-shaped scraper 5 is in contact with the top of the sieve plate 4. An adjustment component 7 is provided inside the folding frame 6, and positioning components 8 are provided on both sides of the bottom of the inner wall of the folding frame 6.

[0023] refer to Figure 2 and Figure 3 The adjustment component 7 includes a bidirectional screw 71 and a handwheel 72. Both sides of the bidirectional screw 71 are threaded through to both sides of the folding frame 6. The left side of the handwheel 72 is movably connected to the right side of the bidirectional screw 71, and the left side of the handwheel 72 is fixedly connected to the plug-in component 9.

[0024] As a technical optimization of this utility model, by setting the adjustment component 7, when the user needs the folding frame 6 to fold, the double-direction screw 71 can be easily rotated by the handwheel 72, thereby driving the folding frame 6 to open or close, and driving the S-shaped scraper 5 to rise and fall. Then, through the self-locking characteristic of the double-direction screw 71 and the internal thread of the folding frame 6, the folding frame 6 is immediately fixed after the double-direction screw 71 stops rotating, thereby stabilizing the adjusted position of the S-shaped scraper 5.

[0025] refer to Figure 3 The positioning component 8 includes positioning holes 81, which are opened on both sides of the bottom of the inner wall of the folding frame 6. A positioning rod 82 is slidably connected to the inner wall of the positioning hole 81, and the bottom of the positioning rod 82 is connected to both sides of the top of the S-shaped scraper 5.

[0026] As a technical optimization of this utility model, by setting the positioning component 8, when the folding frame 6 is connected to the S-shaped scraper 5, the positioning hole 81 and the positioning rod 82 are used to initially position and connect the folding frame 6 and the S-shaped scraper 5 together, and then the screw holes on the folding frame 6 and the S-shaped scraper 5 are connected. Therefore, it is convenient for the user to fix the connection with bolts, thereby improving the ease of operation.

[0027] refer to Figure 3 The plug-in assembly 9 includes a square block 91, the right side of which is fixedly connected to the left side of the handwheel 72. Both sides of the bidirectional screw 71 are provided with square slots 92, and the square block 91 is plugged into one of the square slots 92.

[0028] As a technical optimization of this utility model, by setting up the plug-in component 9, when the user needs to use the handwheel 72 to rotate the bidirectional screw 71, the square block 91 on the handwheel 72 is plugged into the square groove 92 on the bidirectional screw 71, so that the handwheel 72 and the bidirectional screw 71 are connected, allowing the handwheel 72 to rotate the bidirectional screw 71. Furthermore, through the plug-in cooperation between the square block 91 and the square groove 92, the handwheel 72 and the bidirectional screw 71 are freely connected. This makes it easier for the handwheel 72 to no longer occupy space in the screening box 1 after the folding frame 6 is adjusted, thereby improving the usable space of the screening box 1.

[0029] refer to Figure 3 A tension spring 10 is fitted on the surface of the bidirectional screw 71, and the two ends of the tension spring 10 are fixedly connected to the two sides of the inner wall of the folding frame 6.

[0030] As a technical optimization of this utility model, by setting a tension spring 10, the preload of the tension spring 10 is used to pull the folding frame 6, which indirectly applies a clamping force to the bidirectional screw 71, thereby eliminating the gap at the threaded connection between the bidirectional screw 71 and the folding frame 6, and preventing the vibration generated when the main motor 2 drives the S-shaped scraper 5 to perform screening work from loosening the bidirectional screw 71, thus stabilizing the adjusted shape of the folding frame 6.

[0031] refer to Figure 2 and Figure 3 Both ends of the surface of the bidirectional screw 71 are movably fitted with mounting blocks 11. The inner side of the mounting block 11 is fixed with a first corrugated pipe 12. The inner side of the first corrugated pipe 12 is fixedly connected to both sides of the folding frame 6. The surface of the bidirectional screw 71 is fitted with a second corrugated pipe 13. The two sides of the second corrugated pipe 13 are fixedly connected to both sides of the inner wall of the folding frame 6.

[0032] As a technical optimization of this utility model, by setting up the mounting block 11, the first corrugated pipe 12 and the second corrugated pipe 13, in daily use, the first corrugated pipe 12 covers the part of the bidirectional screw 71 that protrudes from the folding frame 6, and the second corrugated pipe 13 wraps around the middle part of the bidirectional screw 71, forming a double dustproof barrier. Then, when the screw moves, the corrugated pipes expand and contract accordingly, always maintaining the sealed protection of the bidirectional screw 71, thereby avoiding the bidirectional screw 71 from getting stuck between the bidirectional screw 71 and the folding frame 6 due to dust accumulation, which would prevent the bidirectional screw 71 from rotating.

[0033] refer to Figure 2 and Figure 3 The bottom of both sides of the folding frame 6 is fixedly connected to a telescopic rod 14, and the top of the telescopic rod 14 is fixedly connected to a U-shaped frame 15. The two sides of the inner side of the U-shaped frame 15 are fixedly connected to the two sides of the mounting block 11.

[0034] As a technical optimization of this utility model, by setting up a telescopic rod 14 and a U-shaped frame 15, when the folding frame 6 is folded and the mounting block 11 is raised or lowered, the mounting block 11 pulls the U-shaped frame 15 to rise or fall together, and causes the telescopic rod 14 to move in a telescopic motion. Thus, through the cooperation of the U-shaped frame 15 and the telescopic rod 14, the mounting block 11 is supported and limited, thereby preventing the mounting block 11 from causing the first corrugated pipe 12 to stably wrap around the bidirectional screw 71.

[0035] The working principle and usage process of this utility model are as follows: When using this utility model, if the user needs to screen calcium carbonate, the S-shaped scraper 5 and the folding frame 6 are initially connected through the cooperation of the positioning hole 81 and the positioning rod 82. The folding frame 6 is then aligned with the screw holes on the S-shaped scraper 5, facilitating the final connection by the user using bolts. Then, the calcium carbonate can be poured into the screening box 1, and the main motor 2 and the vibration motor 3 are started. The main motor 2 drives the folding frame 6 and the S-shaped scraper 5 to rotate, causing the calcium carbonate to roll within the screening box 1. The vibration motor 3 causes the screening box 1 to vibrate, allowing qualified calcium carbonate powder to pass through the sieve plate 4 and be discharged from the bottom of the screening box 1 into the qualified collection box. Unqualified granular calcium carbonate remains inside. Afterwards, the side door of the screening box 1 is opened, allowing the granular calcium carbonate to pass through the S-shaped scraper 5. Driven by the force, the material is discharged and falls into the unqualified collection box. Subsequently, when the S-shaped scraper 5 and the sieve plate 4 are in a state of contact and friction for a long time, excessive wear occurs, causing the gap between the S-shaped scraper 5 and the sieve plate 4 to be too large, affecting the screening efficiency. Through the insertion and cooperation of the square block 91 and the square groove 92, the handwheel 72 is connected to the double-direction screw 71. Then, by using the handwheel 72, the double-direction screw 71 is easily rotated, driving the folding frame 6 to open and pushing the S-shaped scraper 5 down. Thus, the S-shaped scraper 5 is brought into contact with the sieve plate 4 again. Finally, through the self-locking characteristic of the double-direction screw 71 and the internal thread of the folding frame 6, the double-direction screw 71 stops rotating, and the folding frame 6 is immediately fixed in this position. The adjustment is thus completed, and the screening efficiency is restored. This avoids the need to directly replace the S-shaped scraper 5, thereby improving the service life of the S-shaped scraper.

[0036] In summary, this screening device for calcium carbonate processing, by setting up a folding frame 6, solves the problem that when the S-shaped scraper 5 is worn out due to prolonged use and the gap between it and the screen plate 4 becomes too large, the adjusting component 7 drives the folding frame 6 to fold, thereby pushing the S-shaped scraper 5 down and making it contact the screen plate 4 again. This solves the problem that the S-shaped scraper and the screen plate are in a state of constant contact and friction, which easily leads to excessive wear and causes the gap between the S-shaped scraper and the screen plate to become too large. This results in some calcium carbonate particles that cannot pass through the screen plate being pushed out by the S-shaped scraper when the screening box is opened, while directly replacing the S-shaped scraper is very wasteful.

[0037] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0038] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A screening device for calcium carbonate processing, comprising a screening box (1), a main motor (2), a vibrating motor (3), a sieve plate (4), and an S-shaped scraper (5), characterized in that: The bottom of the main motor (2) is fixedly connected to the top of the screening box (1). The output end of the main motor (2) extends through to the top of the inner wall of the screening box (1). The surface of the screen plate (4) is fixedly connected to the bottom of the inner wall surface of the screening box (1). The output end of the main motor (2) is fixedly connected to a folding frame (6). The top of the S-shaped scraper (5) is fixedly connected to the bottom of the folding frame (6) by bolts. The bottom of the S-shaped scraper (5) is in contact with the top of the screen plate (4). An adjustment component (7) is provided inside the folding frame (6). Positioning components (8) are provided on both sides of the bottom of the inner wall of the folding frame (6).

2. The screening device for calcium carbonate processing according to claim 1, characterized in that: The adjustment assembly (7) includes a bidirectional screw (71) and a handwheel (72). Both sides of the bidirectional screw (71) are threaded through to both sides of the folding frame (6). The left side of the handwheel (72) is movably connected to the right side of the bidirectional screw (71). A plug-in assembly (9) is fixedly connected to the left side of the handwheel (72).

3. The screening device for calcium carbonate processing according to claim 1, characterized in that: The positioning component (8) includes a positioning hole (81), which is opened on both sides of the bottom of the inner wall of the folding frame (6). A positioning rod (82) is slidably connected to the inner wall of the positioning hole (81), and the bottom of the positioning rod (82) is connected to both sides of the top of the S-shaped scraper (5).

4. A screening device for calcium carbonate processing according to claim 2, characterized in that: The plug-in assembly (9) includes a square block (91), the right side of which is fixedly connected to the left side of the handwheel (72). Both sides of the bidirectional screw (71) are provided with square slots (92), and the square block (91) is plugged into one of the square slots (92).

5. A screening device for calcium carbonate processing according to claim 2, characterized in that: The surface of the bidirectional screw (71) is fitted with a tension spring (10), and the two ends of the tension spring (10) are fixedly connected to the two sides of the inner wall of the folding frame (6).

6. A screening device for calcium carbonate processing according to claim 2, characterized in that: Both ends of the surface of the bidirectional screw (71) are movably fitted with mounting blocks (11). The inner side of the mounting block (11) is fixed with a first corrugated pipe (12). The inner side of the first corrugated pipe (12) is fixedly connected to both sides of the folding frame (6). The surface of the bidirectional screw (71) is fitted with a second corrugated pipe (13). The two sides of the second corrugated pipe (13) are fixedly connected to both sides of the inner wall of the folding frame (6).

7. A screening device for calcium carbonate processing according to claim 6, characterized in that: Telescopic rods (14) are fixedly connected to the bottom of both sides of the folding frame (6), and a U-shaped frame (15) is fixedly connected to the top of the telescopic rods (14). The two sides of the inner side of the U-shaped frame (15) are fixedly connected to the two sides of the mounting block (11).

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