An automatic slag-retaining device for filter cloth filter beds
By introducing flow guiding components, collection components, and lifting components into the filter cloth filter tank, the problems of inconvenient scum collection, unstable lifting of the filter frame, and lack of flow guiding at the inlet are solved, achieving efficient scum collection and stable filtration effect.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- CHONGQING THREE GORGES WATER CO LTD
- Filing Date
- 2025-08-28
- Publication Date
- 2026-08-04
AI Technical Summary
Existing automatic scum-blocking devices for filter cloth filter beds suffer from problems such as inconvenient scum collection, unstable filter frame lifting, complex structure, and lack of flow guiding structure at the inlet, which affect filtration efficiency and effectiveness.
An automatic slag-blocking device for filter cloth filter beds was designed, which includes a flow guiding component, a collection component, and a lifting component. The flow guiding component guides the flow, the collection component collects the floating slag, and the lifting component stabilizes and raises the filter frame to ensure the filtration and slag-blocking effects.
It enables convenient collection of scum, stable lifting and lowering of the filter frame, and stable flow guidance at the inlet, thereby improving filtration efficiency and scum retention, and extending the service life of the device.
Smart Images

Figure CN224585442U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the technical field of slag interception devices, specifically relating to an automatic slag interception device for filter cloth filter beds. Background Technology
[0002] Filter beds are used for filtration purposes. Some are used to remove suspended solids from water to obtain water with lower turbidity; others are used to remove water from sludge to obtain sludge with lower water content. There are many types of filter beds, which can be divided into rapid filters and slow filters according to their filtration rate. In practical applications, most are rapid filters. Rapid filters have a large treatment capacity and produce good effluent quality.
[0003] Existing automatic slag interception devices for filter cloth filter beds have the following drawbacks: the intercepted slag is inconvenient to collect, long-term accumulation affects filtration efficiency, the filter frame is inconvenient to raise and lower, the structure is complex, the raising and lowering is unstable, and there is no flow guiding structure at the inlet, which affects the slag interception effect.
[0004] In view of this, an automatic slag-blocking device for filter cloth filter beds is designed to solve the above problems. Utility Model Content
[0005] To address the problems mentioned in the background section, this invention provides an automatic scum-blocking device for filter cloth filter beds, which features convenient scum interception and cleaning, stable filter frame lifting, and stable inlet flow guidance.
[0006] To achieve the above objectives, the present invention provides the following technical solution: an automatic slag-blocking device for a filter cloth filter, comprising a filter cloth filter, wherein a liquid inlet is provided on the side of the filter cloth filter, a flow guiding component is provided inside the filter cloth filter on the side of the liquid inlet, a limiting slide rail is welded to the side of the flow guiding component, a filter frame is movably connected to the middle of the limiting slide rail, a collection component is provided on the side of the filter frame away from the flow guiding component, and a lifting component for driving the filter frame to rise and fall is provided at the upper end of the filter cloth filter. The collection component includes a first card holder. The first card holder is provided on the side of the filter frame near the water inlet. A baffle is inserted in the middle of the first card holder. The second card holder is provided on the other side of the filter frame at the corresponding position of the first card holder. A collection net is inserted in the middle of the second card holder.
[0007] Preferably, the surface of the baffle is provided with a plurality of filter holes, and a handle is welded to the top of the baffle.
[0008] Preferably, the collection net includes a mounting base, the mounting base is snapped into the middle of the second mounting base, and a collection filter is connected to the side of the mounting base.
[0009] Preferably, a second handle is welded to the upper end of the mounting base, and the second handle has the same structure as the first handle.
[0010] Preferably, a vertical block is fixedly connected to the upper end of the second card holder, and a fixing bolt is screwed into the middle of the vertical block.
[0011] Preferably, the lifting assembly includes a frame, the upper end of the filter cloth filter tank is fixedly connected to the frame above the filter frame, a reducer is fixed in the middle of the upper end of the frame, the power input end of the reducer is connected to a drive motor, the output shaft of the reducer is connected to a threaded rod, and a sleeve rod is fixedly connected in the middle of the bottom of the filter frame.
[0012] Preferably, the outer surface of the sleeve is provided with an elliptical structure, and the threaded rod is threadedly connected to the sleeve.
[0013] Preferably, a telescopic cover is connected between the bottom of the frame and the sleeve rod, and the inner wall of the telescopic cover does not contact the surface of the threaded rod.
[0014] Preferably, the flow guiding component includes a flow guiding groove, and the flow guiding groove is provided inside the filter cloth filter tank on the side near the liquid inlet, and a flow guiding plate is rotatably connected inside the flow guiding groove.
[0015] Preferably, the rotating shaft of the guide plate is threaded with a fastening bolt at the outer position of the guide groove.
[0016] Compared with the prior art, the beneficial effects of this utility model are: 1. This utility model is equipped with a collection component. After the filter frame is full of scum, the first handle is lifted to disengage the baffle from the first seat. The scum passes through the second seat and enters the collection screen to collect the scum. After the scum in the filter frame is cleaned, the baffle is inserted into the first seat to ensure the filtration effect of the filter frame. The second handle is pulled up to disengage the mounting base from the second seat, and the collection screen is taken out from the filter cloth filter tank to clean the scum and ensure the scum blocking effect. 2. This utility model is equipped with a lifting component. The drive motor drives the output shaft of the reducer to rotate. The output shaft of the reducer drives the threaded rod to rotate. The threaded rod drives the sleeve rod to move upward, so that the filter frame moves in the limit slide rail, making the lifting of the filter frame stable. The telescopic cover provides protection, reducing the corrosion of the threaded rod and sleeve rod and improving the service life. 3. This utility model is equipped with a flow guiding component. Loosen the fastening bolt to allow the flow guiding plate to rotate and adjust in the flow guiding groove. Stop when the flow guiding plate is adjusted to a suitable angle, and tighten the fastening bolt to fix the angle of the flow guiding plate. The flow guiding plate buffers and guides the flow, avoiding the water flow from impacting the filter frame. Attached Figure Description
[0017] Figure 1 This is a schematic diagram of the structure of this utility model; Figure 2 This is a left view of the collecting component of this utility model; Figure 3 This is a right view of the collecting component of this utility model; Figure 4 This utility model Figure 3 Enlarged view of point A; Figure 5 This is a schematic diagram of the lifting component structure of this utility model; Figure 6 This is a schematic diagram of the flow guiding component structure of this utility model; In the diagram: 1. Filter cloth filter tank; 2. Lifting assembly; 21. Reducer; 22. Drive motor; 23. Frame; 24. Telescopic cover; 25. Sleeve rod; 26. Threaded rod; 3. Limiting slide rail; 4. Flow guiding assembly; 41. Flow guiding channel; 42. Flow guiding plate; 43. Fastening bolt; 5. Liquid inlet; 6. Filter frame; 7. Collection assembly; 71. Card seat one; 72. Baffle; 73. Handle one; 74. Collection net; 741. Mounting base; 742. Handle two; 743. Collection filter net; 75. Card seat two; 76. Stand block; 77. Fixing bolt. Detailed Implementation
[0018] 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.
[0019] Example 1 Please see Figure 1-6 The present invention provides the following technical solution: an automatic slag interception device for a filter cloth filter tank, including a filter cloth filter tank 1, an inlet 5 is provided on the side of the filter cloth filter tank 1, a flow guiding component 4 is provided inside the filter cloth filter tank 1 on the side of the inlet 5, a limiting slide rail 3 is welded on the side of the flow guiding component 4, a filter frame 6 is movably connected in the middle of the limiting slide rail 3, a collection component 7 is provided on the side of the filter frame 6 away from the flow guiding component 4, and a lifting component 2 is provided at the upper end of the filter cloth filter tank 1 to drive the filter frame 6 to rise and fall. The collection component 7 includes a first card holder 71. The first card holder 71 is provided on the side of the filter frame 6 near the water inlet. A baffle 72 is inserted into the middle of the first card holder 71. A second card holder 75 is provided on the other side of the filter frame 6 at the corresponding position of the first card holder 71. A collection net 74 is inserted into the middle of the second card holder 75.
[0020] Specifically, the surface of the baffle 72 is provided with several filter holes, and a handle 73 is welded to the top of the baffle 72.
[0021] By adopting the above technical solution, it is convenient for sewage to flow for filtration, and by lifting handle 73, the baffle 72 can be detached from the bracket 71.
[0022] Specifically, the collection net 74 includes a mounting base 741, which is snapped into the middle of the mounting base 75, and a collection filter 743 is connected to the side of the mounting base 741.
[0023] By adopting the above technical solution, the scum passes through the first card seat 71, then through the second card seat 75, and enters the collection filter screen 743 to collect the scum. The mounting seat 741 is then removed from the second card seat 75, and the collection filter screen 743 is retrieved from the filter cloth filter tank 1 to clean the scum and ensure the scum interception effect.
[0024] Specifically, a second handle 742 is welded to the upper end of the mounting base 741. The second handle 742 has the same structure as the first handle 73.
[0025] By adopting the above technical solution, the upper handle 742 is pulled up to disengage the mounting base 741 from the card holder 75.
[0026] Specifically, a vertical block 76 is fixedly connected to the upper end of the card holder 75, and a fixing bolt 77 is screwed into the middle of the vertical block 76.
[0027] By adopting the above technical solution, the fixing bolt 77 is tightened to firmly fix the mounting seat 741 in the second card holder 75, preventing it from falling off easily and ensuring stable collection.
[0028] In this embodiment, wastewater enters the filter cloth filter tank 1 through the inlet 5 and is filtered by the filter frame 6. After the filter frame 6 is full of scum, the handle 73 is lifted to disengage the baffle 72 from the bracket 71. The scum passes through the bracket 75 and enters the collection screen 743 for collection. After the scum in the filter frame 6 is cleaned, the baffle 72 is inserted into the bracket 71 to ensure the filtration effect of the filter frame 6. The handle 742 is pulled up to disengage the mounting base 741 from the bracket 75. The collection screen 743 is then removed from the filter cloth filter tank 1 to clean the scum and ensure the scum-blocking effect. Example 2 The difference between this embodiment and embodiment 1 is that the lifting assembly 2 includes a frame 23. The upper end of the filter cloth filter tank 1 is fixedly connected to the frame 23 above the filter frame 6. A reducer 21 is fixed in the middle of the upper end of the frame 23. The power input end of the reducer 21 is connected to a drive motor 22. The output shaft of the reducer 21 is connected to a threaded rod 26. A sleeve rod 25 is fixedly connected in the middle of the bottom of the filter frame 6.
[0029] By adopting the above technical solution, the drive motor 22 drives the output shaft of the reducer 21 to rotate, the output shaft of the reducer 21 drives the threaded rod 26 to rotate, the threaded rod 26 drives the sleeve rod 25 to move upward, so that the filter frame 6 moves in the limit slide rail 3, making the filter frame 6 rise and fall stably.
[0030] Specifically, the outer surface of the sleeve 25 is provided with an elliptical structure, and the threaded rod 26 is threadedly connected to the sleeve 25.
[0031] By adopting the above technical solution, the elliptical sleeve 25 can reduce water flow resistance and reduce the impact of scum, and the rotation of the threaded rod 26 drives the sleeve 25 to move.
[0032] Specifically, a telescopic cover 24 is connected between the bottom of the frame 23 and the sleeve rod 25, and the inner wall of the telescopic cover 24 does not contact the surface of the threaded rod 26.
[0033] By adopting the above technical solution and using the telescopic cover 24 for protection, the corrosion of the threaded rod 26 and the sleeve rod 25 is reduced, and the service life is improved.
[0034] In this embodiment, the drive motor 22 drives the output shaft of the reducer 21 to rotate. The output shaft of the reducer 21 drives the threaded rod 26 to rotate. The threaded rod 26 drives the sleeve rod 25 to move upward, so that the filter frame 6 moves in the limit slide rail 3, making the filter frame 6 rise and fall stably. The telescopic cover 24 provides protection, reducing the corrosion of the threaded rod 26 and the sleeve rod 25 and improving the service life. Example 3 The difference between this embodiment and embodiments 1 and 2 is that the flow guiding component 4 includes a flow guiding groove 41. The flow guiding groove 41 is provided inside the filter cloth filter tank 1 on the side near the liquid inlet 5. A flow guiding plate 42 is rotatably connected inside the flow guiding groove 41.
[0035] By adopting the above technical solution, the water flow is buffered and guided by the guide plate 42 to avoid impacting the filter frame 6.
[0036] Specifically, the shaft of the guide plate 42 is located on the outer side of the guide groove 41 and is threaded with a fastening bolt 43.
[0037] By adopting the above technical solution, the fastening bolt 43 is loosened, allowing the guide plate 42 to rotate and adjust in the guide groove 41. The guide plate 42 is adjusted to a suitable angle and then the fastening bolt 43 is tightened to fix the angle of the guide plate 42.
[0038] In this embodiment, loosen the fastening bolt 43 to allow the guide plate 42 to rotate and adjust in the guide groove 41. Stop when the guide plate 42 is adjusted to a suitable angle, and tighten the fastening bolt 43 to fix the angle of the guide plate 42. The buffering and guiding of the water flow through the guide plate 42 prevents the water flow from impacting the filter frame 6.
[0039] The working principle and usage process of this utility model are as follows: When using this utility model, wastewater enters the filter cloth filter tank 1 through the inlet 5 and is filtered by the filter frame 6. After the filter frame 6 is full of scum, the handle 73 is lifted to disengage the baffle 72 from the holder 71. The scum passes through the holder 71 and then into the collection screen 743 for collection. After the scum in the filter frame 6 is cleaned, the baffle 72 is inserted back into the holder 71 to ensure the filtration effect of the filter frame 6. The handle 742 is then pulled up to disengage the mounting base 741 from the holder 75, and the collection screen 743 is removed from the filter cloth filter tank 1 to clean the scum. To ensure effective slag removal, the drive motor 22 drives the output shaft of the reducer 21 to rotate. The output shaft of the reducer 21 drives the threaded rod 26 to rotate, and the threaded rod 26 drives the sleeve rod 25 to move upward, causing the filter frame 6 to move in the limit slide rail 3. This ensures stable lifting and lowering of the filter frame 6. The telescopic cover 24 provides protection, reducing corrosion of the threaded rod 26 and sleeve rod 25 and improving service life. Loosening the fastening bolt 43 allows the guide plate 42 to rotate and adjust in the guide groove 41. The guide plate 42 is adjusted to a suitable angle and then stopped. Tightening the fastening bolt 43 fixes the angle of the guide plate 42. The buffering and guiding effect of the guide plate 42 prevents the water flow from impacting the filter frame 6.
[0040] 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. An automatic slag-blocking device for a filter cloth filter bed, comprising a filter cloth filter bed (1), characterized in that: The filter cloth filter tank (1) is provided with an inlet (5) on its side. Inside the filter cloth filter tank (1), a flow guiding component (4) is provided on the side of the inlet (5). A limiting slide rail (3) is welded to the side of the flow guiding component (4). A filter frame (6) is movably connected in the middle of the limiting slide rail (3). A collection component (7) is provided on the side of the filter frame (6) away from the flow guiding component (4). A lifting component (2) is provided at the upper end of the filter cloth filter tank (1) to drive the filter frame (6) to rise and fall. The collection component (7) includes a card seat one (71). The side of the filter frame (6) near the water inlet is provided with a card seat one (71). A baffle (72) is inserted in the middle of the card seat one (71). A card seat two (75) is provided on the other side of the filter frame (6) at the position corresponding to the card seat one (71). A collection net (74) is inserted in the middle of the card seat two (75).
2. The automatic slag-retaining device for a filter cloth filter bed according to claim 1, characterized in that: The surface of the baffle (72) is provided with a number of filter holes, and a handle (73) is welded to the top of the baffle (72).
3. The automatic slag-retaining device for a filter cloth filter bed according to claim 1, characterized in that: The collection net (74) includes a mounting base (741), the mounting base (741) is snapped into the middle of the second mounting base (75), and a collection filter (743) is connected to the side of the mounting base (741).
4. The automatic slag-retaining device for a filter cloth filter bed according to claim 3, characterized in that: The upper end of the mounting base (741) is welded with a second handle (742), which has the same structure as the first handle (73).
5. The automatic slag-retaining device for a filter cloth filter bed according to claim 1, characterized in that: The upper end of the card holder (75) is fixedly connected to a vertical block (76), and a fixing bolt (77) is screwed into the middle of the vertical block (76).
6. The automatic slag-retaining device for a filter cloth filter bed according to claim 1, characterized in that: The lifting assembly (2) includes a frame (23). The upper end of the filter cloth filter tank (1) is fixedly connected to the frame (23) above the filter frame (6). A reducer (21) is fixed in the middle of the upper end of the frame (23). The power input end of the reducer (21) is connected to a drive motor (22). The output shaft of the reducer (21) is connected to a threaded rod (26). A sleeve rod (25) is fixedly connected in the middle of the bottom of the filter frame (6).
7. The automatic slag-retaining device for a filter cloth filter bed according to claim 6, characterized in that: The outer surface of the sleeve (25) is provided with an elliptical structure, and the threaded rod (26) is threadedly connected to the sleeve (25).
8. The automatic slag-retaining device for a filter cloth filter bed according to claim 6, characterized in that: A telescopic cover (24) is connected between the bottom of the frame (23) and the sleeve (25), and the inner wall of the telescopic cover (24) does not contact the surface of the threaded rod (26).
9. The automatic slag-retaining device for a filter cloth filter bed according to claim 1, characterized in that: The flow guiding component (4) includes a flow guiding groove (41). The flow guiding groove (41) is provided on the side of the filter cloth filter tank (1) near the liquid inlet (5). A flow guiding plate (42) is rotatably connected inside the flow guiding groove (41).
10. An automatic slag-retaining device for a filter cloth filter bed according to claim 9, characterized in that: The shaft of the guide plate (42) is located on the outside of the guide groove (41) and is threaded with a fastening bolt (43).