Self-cleaning filter screen equipment for filtering calcium sulfate

The self-cleaning drive mechanism enables the filter to swing and rotate automatically, solving the problem of impurity accumulation in the calcium carbonate filter screen, achieving efficient filtration and rapid cleaning, and improving production efficiency.

CN224252299UActive Publication Date: 2026-05-19ZHENGZHOU BOKAILI ECOLOGICAL ENG CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHENGZHOU BOKAILI ECOLOGICAL ENG CO LTD
Filing Date
2025-05-23
Publication Date
2026-05-19

AI Technical Summary

Technical Problem

Existing calcium carbonate filters tend to accumulate impurities after long-term operation, leading to a decline in filtration performance. Furthermore, cleaning and maintenance are cumbersome, affecting the efficiency of continuous production.

Method used

The filter mechanism is driven by a self-cleaning mechanism, which swings back and forth and flips over. Combined with motor drive, it achieves automatic cleaning and reduces manual intervention.

Benefits of technology

It improves filtration efficiency, reduces cleaning time, and ensures production continuity and filtration performance stability.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of calcium carbonate filtering, and discloses a self-cleaning filter screen device for filtering calcium sulfate, which comprises a filtering device, a feeding port is fixedly arranged on the top side of the filtering device, a sealing mechanism is clamped on the front side of the filtering device, and a self-cleaning driving mechanism is fixedly arranged in the middle of the inner bottom surface of the filtering device. Collecting frames are fixedly arranged on the two sides of the self-cleaning driving mechanism on the inner bottom face of the filtering equipment, a filtering mechanism is fixedly arranged on the top side of the self-cleaning driving mechanism and comprises a connecting ring, a half gear is fixedly arranged on one side of a ring body of the connecting ring, and a connecting rod is fixedly arranged on the side, away from the half gear, of the connecting ring. According to the self-cleaning filtering device, the filtering mechanism is driven by the self-cleaning driving mechanism, so that the filtering mechanism swings back and forth, the filtering effect is improved, meanwhile, the filtering mechanism can be turned over, the filtering net is self-cleaned in cooperation with front-back swinging, and the continuous production efficiency is improved.
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Description

Technical Field

[0001] This utility model relates to the field of calcium carbonate filtration technology, specifically to a self-cleaning filter screen device for calcium sulfate filtration. Background Technology

[0002] Calcium carbonate filtration is a physical process that separates solid calcium carbonate from the liquid in a suspension. Its core objective is to achieve efficient solid-liquid separation and reduce moisture content while avoiding negative impacts on product quality. In industrial production, this technology is widely used in pharmaceutical manufacturing, water treatment, and the production of light / nano-sized calcium carbonate.

[0003] The calcium carbonate filter screen currently in use tends to accumulate a layer of impurities on its surface after long-term operation, resulting in a significant decrease in filtration performance. The cleaning and maintenance process is cumbersome, requiring technicians to completely disassemble the filter device for thorough cleaning. This process is not only time-consuming and labor-intensive, but also directly affects the continuous operation efficiency of production. Utility Model Content

[0004] The purpose of this utility model is to provide a self-cleaning filter screen device for calcium sulfate filtration in order to solve the above problems. The self-cleaning drive mechanism drives the filter mechanism back and forth, so that the filter mechanism continuously swings back and forth, thereby improving the filtration effect of the filter mechanism. At the same time, the self-cleaning drive mechanism can change the flip position of the filter mechanism and achieve the cleaning function of the filter mechanism in conjunction with the back and forth swinging effect.

[0005] This utility model achieves the above objectives through the following technical solutions:

[0006] A self-cleaning filter screen device for calcium sulfate filtration includes: a filter device, a feeding port fixedly provided on the top side of the filter device, a sealing mechanism snapped onto the front side of the filter device, a self-cleaning drive mechanism fixedly provided in the middle of the inner bottom surface of the filter device, collection frames fixedly provided on both sides of the self-cleaning drive mechanism on the inner bottom surface of the filter device, and a filter mechanism fixedly provided on the top side of the self-cleaning drive mechanism.

[0007] The filtration mechanism includes a connecting ring, a half gear is fixedly provided on one side of the connecting ring, a connecting rod is fixedly provided on the side of the connecting ring away from the half gear, and a filter screen is fixedly provided on one side of the connecting rod. The self-cleaning drive mechanism includes a drive frame and a first gear.

[0008] Furthermore, the half gear and the first gear are meshed together, and the half gear is higher than the first gear.

[0009] Furthermore, two slotted frames are fixedly provided on the bottom surface of the drive frame, and a first spring is fixedly provided on the top side of each of the two slotted frames. A clamping ring is fixedly provided on the opposite side of each of the two slotted frames, and a sliding clamping rod is slidably provided on the inner side of each of the two clamping rings.

[0010] Furthermore, a base plate is fixedly installed in the middle of the top surface of the drive frame, a first motor is fixedly installed on one side of the base plate, and a curved drive plate is fixedly installed at the output end of the first motor.

[0011] Furthermore, a motor plate is fixedly installed on the side of the base plate away from the first motor. The motor plate is L-shaped in general. A second motor is fixedly installed on the inner side of the top of the motor plate, and a first button is fixedly installed on the outer side of the top of the motor plate.

[0012] Furthermore, a protective plate is fixedly installed on the top side of the drive frame, and a support plate is fixedly installed on the rear side of the protective plate. A groove is opened on the inner side of the protective plate and extends through to the drive frame. The first gear is installed on the front side of the support plate, and a synchronous belt is installed between the output end of the second motor and the first gear.

[0013] Furthermore, a number of limiting plates are fixedly provided on the front side of the top of the drive frame, and a retaining ring is slidably provided through the inner side of the number of limiting plates, and the retaining ring has a hollow groove.

[0014] Furthermore, the front side of the retaining ring penetrates the drive frame, and a second spring is fixedly installed on the front side of the drive frame. One end of the second spring is connected to the front side of the drive frame, and the other end is connected to the front side of the inner wall of the hollow groove. A second button is fixedly installed on the front side of the drive frame, and the base plate is located between the two slotted frames.

[0015] Furthermore, the sealing mechanism includes a front retaining plate, and two C-shaped retaining plates are fixedly disposed on the lower front side of the front retaining plate. A handle is fixedly disposed between the upper sides of the two C-shaped retaining plates, and placement grooves are provided on both lower front sides of the front retaining plate.

[0016] Furthermore, the filter device has slots on both lower front sides.

[0017] In summary, the beneficial effects of this utility model are as follows: the first motor in the self-cleaning drive mechanism and the curved drive plate at the output end drive the filter mechanism to swing back and forth, thereby improving the overall filtration efficiency. At the same time, the second motor in the self-cleaning drive mechanism causes the entire filter mechanism to flip over, making the filter screen upside down. Then, the first motor drives the cleaning, reducing the cleaning speed of the filter screen and improving the operating efficiency of continuous production, thus avoiding the decline in the filtration performance of the filter screen. Attached Figure Description

[0018] 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.

[0019] Figure 1 This is a front view of the present invention;

[0020] Figure 2 This is an axonometric view of the present invention;

[0021] Figure 3 This is a side view of the sealing mechanism of this utility model before installation;

[0022] Figure 4 This is an isometric view of the collection frame of this utility model before installation;

[0023] Figure 5 This is an isometric view of the self-cleaning drive mechanism of this utility model when it is not fully installed;

[0024] Figure 6 This is a utility model Figure 5 Enlarged view of point A;

[0025] Figure 7 This is a right view of the self-cleaning drive mechanism of this utility model;

[0026] Figure 8 This is a utility model Figure 7 Enlarged view of point B;

[0027] Figure 9 This is a partial structural isometric view of the self-cleaning drive mechanism of this utility model.

[0028] The annotations in the attached figures are explained as follows:

[0029] 1. Filtration equipment; 2. Feeding port; 3. Sealing mechanism; 301. Front clamping plate; 302. C-shaped clamping plate; 303. Placement slot; 304. Handle; 4. Self-cleaning drive mechanism; 401. Drive frame; 402. Slotted frame; 403. Base plate; 404. First motor; 405. Bent drive plate; 406. Motor plate; 407. First button; 408. Second motor; 409. Synchronous belt; 410. Protective plate; 411. First gear; 412. First spring; 413. Clamping ring; 414. Sliding clamping rod; 415. Limiting plate; 416. Snap ring; 417. Hollow slot; 418. Second spring; 419. Second button; 420. Support plate; 5. Collection frame; 6. Filtration mechanism; 601. Connecting ring; 602. Half gear; 603. Connecting rod; 604. Filter screen; 7. Slot. Detailed Implementation

[0030] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be described in detail below. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other implementation methods obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0031] See Figures 1-5 As shown, this utility model provides a self-cleaning filter screen device for calcium sulfate filtration, including: a filter device 1, a feeding port 2 fixedly provided on the top side of the filter device 1, a sealing mechanism 3 snapped onto the front side of the filter device 1, a self-cleaning drive mechanism 4 fixedly provided in the middle of the inner bottom surface of the filter device 1, collection frames 5 fixedly provided on both sides of the self-cleaning drive mechanism 4 on the inner bottom surface of the filter device 1, a filter mechanism 6 fixedly provided on the top side of the self-cleaning drive mechanism 4, and slots 7 opened on the lower two sides of the front side of the filter device 1;

[0032] Using the above technical solution, calcium sulfate is fed into the filter mechanism 6 inside the filter equipment 1 through the feeding port 2, and the filter mechanism 6 is controlled by the self-cleaning drive mechanism 4 to swing back and forth to achieve the filtration effect. The front side of the filter equipment 1 is sealed by the sealing mechanism 3, and the detachable nature of the sealing mechanism 3 provides the product with the feature of easy maintenance in the future.

[0033] See Figures 5-9 As shown, the filter mechanism 6 includes a connecting ring 601, a half gear 602 fixedly disposed on one side of the connecting ring 601, a connecting rod 603 fixedly disposed on the side of the connecting ring 601 away from the half gear 602, and a filter screen 604 fixedly disposed on one side of the connecting rod 603. The self-cleaning drive mechanism 4 includes a drive frame 401 and a first gear 411, the half gear 602 and the first gear 411 meshing together, the half gear 602 being higher than the first gear 411. The drive frame 401... Two slotted frames 402 are fixedly installed on the inner bottom surface of the drive frame 401. A first spring 412 is fixedly installed on the top side of each of the two slotted frames 402. A clamping ring 413 is fixedly installed on the opposite side of each of the two slotted frames 402. A sliding clamping rod 414 is slidably installed on the inner side of each of the two clamping rings 413. A base plate 403 is fixedly installed in the middle of the inner top surface of the drive frame 401. A first motor 404 is fixedly installed on one side of the base plate 403. A curved drive plate 405 is fixedly installed at the output end of the first motor 404.

[0034] In use, the connecting ring 601 first engages directly with the first gear 411 in the self-cleaning drive mechanism 4 via the half gear 602 on one side. The connecting ring 601 is supported by two sliding clamping rods 414. When filtration is required, the first motor 404 and the curved drive plate 405 at the output end push the two sliding clamping rods 414 to both sides during rotation, thus reciprocating the back-and-forth swinging motion of the filter mechanism 6, improving its filtration effect. When one sliding clamping rod 414 is pushed, the other sliding clamping rod 414 moves accordingly. While the two sliding clamping rods 414 engage the connecting ring 601 in the middle, the connecting ring 601 also limits the position of the sliding clamping rods 414, preventing the connecting ring 601 from... When the second motor 408 starts, it rotates the first gear 411 via the synchronous belt 409 between the output end and the first gear 411. The first gear 411 meshes with the half gear 602 on one side of the connecting ring 601, causing the half gear 602 to rotate the connecting ring 601 as a whole. This causes the connecting rod 603 and the filter screen 604 on one side of the connecting ring 601 to flip, rotating the entire filter mechanism 6 to the other of the two collection frames 5. At this time, the first motor 404 and the curved drive plate 405 at the output end, together with the two sliding clamping rods 414, make the filter screen 604 swing back and forth, throwing off the impurities on the surface of the filter screen 604, thus completing the self-cleaning function of the filter screen 604.

[0035] See Figures 6-9 As shown, a motor plate 406 is fixedly installed on the side of the base plate 403 away from the first motor 404. The motor plate 406 is L-shaped. A second motor 408 is fixedly installed on the inner side of the top of the motor plate 406. A first button 407 is fixedly installed on the outer side of the top of the motor plate 406. A protective plate 410 is fixedly installed on the top of the drive frame 401. A support plate 420 is fixedly installed on the rear side of the protective plate 410. A groove is opened on the inner side of the protective plate 410 and extends through to the drive frame 401. The first gear 411 is located on the front side of the support plate 420. A synchronous belt 409 is provided between the output end of the second motor 408 and the first gear 411.

[0036] In the above embodiment, the base plate 403 supports the motor plate 406, which is inverted L-shaped. The second motor 408 is fixedly installed on one of the upper sides, and the other side has the start button for the second motor 408, which is used to start the second motor 408 in conjunction with the retaining ring 416. The second motor 408 is a reversible motor, and after each start, it can only rotate the first gear 411 three-quarters of a turn. The first gear 411 is supported and protected by the protective plate 410 and the support plate 420 on the top side of the drive frame 401. The second motor 408 can drive the first gear 411 to rotate through the synchronous belt 409 at the output end of the first gear 411 and the second motor 408.

[0037] See Figures 7-8 As shown, a plurality of limiting plates 415 are fixedly arranged on the front side of the inner top of the drive frame 401. A retaining ring 416 is slidably arranged through the inner side of the plurality of limiting plates 415. The retaining ring 416 has a hollow groove 417 in its ring body. The front side of the retaining ring 416 passes through the drive frame 401. A second spring 418 is fixedly arranged on the front side of the drive frame 401. One end of the second spring 418 is connected to the front side of the drive frame 401, and the other end is connected to the front side of the inner wall of the hollow groove 417. A second button 419 is fixedly arranged on the front side of the drive frame 401. The base plate 403 is arranged between two slotted frames 402.

[0038] Specifically, the retaining ring 416 is supported by several limiting plates 415 to ensure that the retaining ring 416 moves in a straight line when it moves back and forth. At the same time, the first button 407 is wrapped around the rear side of the retaining ring 416. A hollow groove 417 is opened on the inner side of the retaining ring 416, which passes through the front side of the drive frame 401. The second spring 418 fixed on the front side of the drive frame 401 keeps the retaining ring 416 in a position where the first button 407 is not pressed. When the filter mechanism 6 needs to filter automatically, the operator only needs to press the side of the retaining ring 416 that extends out of the drive frame 401 to press the first button 407 through the retaining ring 416 and start the second motor 408. Then, the first motor 404 is started through the second button 419, so that the filter mechanism 6 swings back and forth and reciprocates to remove impurities from the surface of the filter screen 604, thus cleaning the filter screen 604.

[0039] See Figure 2 As shown, the sealing mechanism 3 includes a front clamping plate 301, two C-shaped clamping plates 302 are fixedly arranged on the lower front side of the front clamping plate 301, a handle 304 is fixedly arranged between the upper sides of the two C-shaped clamping plates 302, and placement grooves 303 are opened on both lower front sides of the front clamping plate 301.

[0040] In use, the front clamping plate 301 seals the inside of the filter device 1. At the same time, the two C-shaped clamping plates 302 on the front side of the front clamping plate 301 can be clamped into the two slots 7 opened on the lower front side of the filter device 1 to fix the sealing mechanism 3. The handle 304 makes it easy to change the state of the front clamping plate 301, so that the front clamping plate 301 is not clamped to the front end of the filter device 1. The two opening placement slots 303 provide space for the handles of the two collection frames 5 inside the filter device 1.

[0041] Using the above structure, when using this product for filtration, the first motor 404 in the self-cleaning drive mechanism 4 is activated. The curved drive plate 405 fixed at the output end of the first motor 404 pushes the sliding clamping rod 414 to one side. When one of the sliding clamping rods 414 moves back and forth, the connecting ring 601 clamped between the two sliding clamping rods 414 moves the other sliding clamping rod 414, realizing the back and forth displacement of the connecting ring 601. The connecting rod 603 on one side of the connecting ring 601 moves the position of the filter screen 604 back and forth. When the curved drive plate 405 disengages from the sliding clamping rod 414, the first spring 412 inside the slotted frame 402 resets the two sliding clamping rods 414. This process is repeated to realize the back and forth reciprocating motion of the filter mechanism 6, continuously filtering calcium carbonate through the filter screen 604.

[0042] When the filter screen 604 needs cleaning, the operator simply presses the retaining ring 416 backward, causing the back of the retaining ring 416 to press the second button 419 and start the second motor 408. The output end of the second motor 408 drives the half gear 602 above and the ring body of the connecting ring 601 through the synchronous belt 409, causing the connecting ring 601 to rotate between the two sliding clamping rods 414, completing the overall orientation of the filter mechanism 6, so that the filter screen 604 is upside down on the other side of its original position. At this time, the curved drive plate 405 at the output end of the first motor 404 completes the back and forth swing of the upside-down filter screen 604, causing the impurities on the surface of the filter screen 604 to fall into the collection frame 5 below. The filter screen 604 is automatically cleaned without the need for manual operation, which greatly reduces the time required to clean the filter screen 604 and improves the filtration efficiency of calcium carbonate.

[0043] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A self-cleaning filter screen device for calcium sulfate filtration, characterized in that, include: A filter device (1) is provided with a feeding port (2) fixedly installed on the top side of the filter device (1), a sealing mechanism (3) is snapped on the front side of the filter device (1), a self-cleaning drive mechanism (4) is fixedly installed in the middle of the inner bottom surface of the filter device (1), a collection frame (5) is fixedly installed on both sides of the self-cleaning drive mechanism (4) on the inner bottom surface of the filter device (1), and a filter mechanism (6) is fixedly installed on the top side of the self-cleaning drive mechanism (4). The filtering mechanism (6) includes a connecting ring (601), a half gear (602) is fixedly provided on one side of the connecting ring (601), a connecting rod (603) is fixedly provided on the side of the connecting ring (601) away from the half gear (602), and a filter screen (604) is fixedly provided on one side of the connecting rod (603). The self-cleaning drive mechanism (4) includes a drive frame (401) and a first gear (411).

2. The self-cleaning filter screen device for calcium sulfate filtration according to claim 1, characterized in that: The half gear (602) is meshed with the first gear (411), and the half gear (602) is higher than the first gear (411).

3. The self-cleaning filter screen device for calcium sulfate filtration according to claim 1, characterized in that: Two slotted frames (402) are fixedly installed on the bottom surface of the drive frame (401). A first spring (412) is fixedly installed on the top side of each of the two slotted frames (402). A clamping ring (413) is fixedly installed on the opposite side of each of the two slotted frames (402). A sliding clamping rod (414) is slidably installed on the inner side of each of the two clamping rings (413).

4. The self-cleaning filter screen device for calcium sulfate filtration according to claim 3, characterized in that: A base plate (403) is fixedly installed in the middle of the top surface of the drive frame (401), and a first motor (404) is fixedly installed on one side of the base plate (403). A curved drive plate (405) is fixedly installed at the output end of the first motor (404).

5. The self-cleaning filter screen device for calcium sulfate filtration according to claim 4, characterized in that: A motor plate (406) is fixedly installed on the side of the base plate (403) away from the first motor (404). The motor plate (406) is L-shaped. A second motor (408) is fixedly installed on the inner side of the top of the motor plate (406). A first button (407) is fixedly installed on the outer side of the top of the motor plate (406).

6. The self-cleaning filter screen device for calcium sulfate filtration according to claim 5, characterized in that: A protective plate (410) is fixedly installed on the top side of the drive frame (401), and a support plate (420) is fixedly installed on the rear side of the protective plate (410). A groove is opened on the inner side of the protective plate (410) and extends through to the drive frame (401). The first gear (411) is installed on the front side of the support plate (420). A synchronous belt (409) is installed between the output end of the second motor (408) and the first gear (411).

7. The self-cleaning filter screen device for calcium sulfate filtration according to claim 6, characterized in that: A plurality of limiting plates (415) are fixedly provided on the front side of the inner top of the drive frame (401), and a retaining ring (416) is slidably provided through the inner side of the plurality of limiting plates (415), and the retaining ring (416) has a hollow groove (417) on its ring body.

8. The self-cleaning filter screen device for calcium sulfate filtration according to claim 7, characterized in that: The retaining ring (416) passes through the drive frame (401) on the front side of the ring body. A second spring (418) is fixedly installed on the front side of the drive frame (401). One end of the second spring (418) is connected to the front side of the drive frame (401), and the other end is connected to the front side of the inner wall of the hollow groove (417). A second button (419) is fixedly installed on the front side of the drive frame (401). The base plate (403) is located between the two slotted frames (402).

9. The self-cleaning filter screen device for calcium sulfate filtration according to claim 1, characterized in that: The sealing mechanism (3) includes a front clamping plate (301), and two C-shaped clamping plates (302) are fixedly arranged on the lower front side of the front clamping plate (301). A handle (304) is fixedly arranged between the upper sides of the two C-shaped clamping plates (302). Placement slots (303) are opened on both lower front sides of the front clamping plate (301).

10. The self-cleaning filter screen device for calcium sulfate filtration according to claim 1, characterized in that: The filter device (1) has slots (7) on both lower front sides.