A multi-layer diatomite filter

Abstract

The utility model belongs to diatomite filter technical field, specifically disclose a multilayer diatomite filter, including the casing, its inside along the vertical direction is provided with a plurality of filter screen board, the casing inner wall is correspondingly provided with the position of each filter screen board respectively and sets up the mounting structure, the mounting structure includes a plurality of fixed parts along the circumferential distribution, every fixed part is connected with the casing inner wall, and inside is equipped with the plug -in part, the utility model discloses the setting of mounting structure has realized the convenient disassembly of filter screen board and cleaning brush, and the plug -in cooperation and the hanging ring design of L type connecting portion and fixed part of filter screen board can be quickly completed and take the replacement, the interference plug -in of cleaning brush with the plug -in groove of rotary lever with the help of the plug -in block, can directly disassemble through the sealing door, can ensure that the filter screen board and cleaning brush of wearing can be replaced in time, effectively avoid the problem such as the decline of filtration precision, filter membrane blockage aggravation caused by the wearing of component.

Description

Technical Field

[0001] This application relates to the field of diatomaceous earth filter technology, and more specifically, to a multi-layer diatomaceous earth filter. Background Technology

[0002] Diatomaceous earth filters are coated filters that use diatomaceous earth as the main medium and a diatomaceous earth coating as the filter layer. They are mainly used in water filtration processes that utilize mechanical sieving to remove water containing tiny suspended solids. They are filtration devices that use the fineness and porosity of diatomaceous earth particles to remove suspended particles, colloids and other impurities from swimming pool water.

[0003] The patent with publication number CN219558821U discloses a diatomaceous earth microporous filter. This patent uses a cleaning motor to start a cleaning motor. The output shaft of the cleaning motor drives the rotating shaft and the mounting plate to rotate. The bristles on the bottom surface of the mounting plate break the filter membrane on the top surface of the carrier plate, so that diatomaceous earth and impurity particles can be discharged from the through holes on the carrier plate, thus avoiding affecting the next filtration.

[0004] Although this patented technology can clean the filter membrane, its bristles and filter screen are not easy to disassemble and replace. When the bristles wear down, their ability to damage and clean the diatomaceous earth and impurities on the filter membrane surface will significantly decrease, making it unable to effectively remove contaminants attached to the filter membrane, thus exacerbating the filter membrane clogging problem. When the filter screen wears down, its ability to trap impurities will weaken, directly causing a decrease in filtration accuracy and ultimately affecting the overall filtration effect. Utility Model Content

[0005] To address the aforementioned problems, this application provides a multi-layer diatomaceous earth filter.

[0006] This application provides a multi-layer diatomaceous earth filter using the following technical solution:

[0007] A multi-layer diatomaceous earth filter includes a housing, inside which multiple filter screens are arranged in a vertical direction;

[0008] The inner wall of the housing is provided with an installation structure corresponding to the position of each filter screen;

[0009] The mounting structure includes multiple fasteners distributed circumferentially, each fastener being connected to the inner wall of the housing and having an internal insertion part;

[0010] The outer side of the filter screen is provided with multiple L-shaped connecting parts corresponding to the positions of the fixing parts. Each L-shaped connecting part can be inserted into the corresponding fixing part to realize the installation and fixing of the filter screen.

[0011] The top of the filter screen is also equipped with at least one hanging ring.

[0012] Through the above technical solution, the filter screen can be quickly removed and replaced by the L-shaped connector and the fastener, as well as the hanging ring design. The cleaning brush can be directly disassembled and installed through the sealed door by the interference fit between the plug and the rotating rod slot. This ensures that worn filter screens and cleaning brushes can be replaced in a timely manner, effectively avoiding problems such as decreased filtration accuracy and aggravated filter membrane clogging caused by component wear.

[0013] Furthermore, the inner wall of the housing is provided with multiple sets of sealing rings, with each set of sealing rings having multiple rings, and each set of sealing rings and the fixing parts in the same set are arranged alternately at intervals.

[0014] Furthermore, the bottom of each set of sealing rings is rounded.

[0015] Furthermore, the top of the housing is provided with a removable cover, and a motor is located on the top of the cover. The output end of the motor is fixedly connected to a rotating rod.

[0016] Furthermore, multiple sets of cleaning brushes are provided on the outer side of the rotating rod, with each set of cleaning brushes located above the corresponding filter screen.

[0017] Furthermore, multiple sets of slots are provided at both ends of the rotating rod, and each set of cleaning brushes has a plug fixedly connected to the opposite side, with each set of plugs being interference-fitted into the corresponding slot.

[0018] Furthermore, a feed inlet is provided at one end of the shell, a discharge outlet is provided at the bottom of the shell, a return pipe is provided at one end of the shell, and a drain pipe is provided at the end of the shell away from the return pipe.

[0019] Furthermore, multiple sealing doors are provided on the front side of the housing, and the positions of the sealing doors are staggered with the installation positions of the filter screen.

[0020] In summary, this application includes at least one of the following beneficial technical effects:

[0021] This utility model achieves convenient assembly and disassembly of the filter screen and cleaning brush through the installation structure. The filter screen can be quickly removed and replaced through the L-shaped connecting part and the fastener and the hanging ring design. The cleaning brush can be directly disassembled and installed through the sealed door by the interference fit between the plug and the rotating rod slot. This ensures that worn filter screen and cleaning brush can be replaced in time, effectively avoiding problems such as decreased filtration accuracy and aggravated filter membrane clogging caused by component wear. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0023] Figure 2 This is a side view of the present invention;

[0024] Figure 3This is a schematic diagram of the internal structure of the shell of this utility model;

[0025] Figure 4 This is a schematic diagram of the connection structure between the filter screen and the fixing component of this utility model;

[0026] Figure 5 This is a schematic diagram of the connection structure between the insert plate and the cleaning brush of this utility model;

[0027] Figure 6 This is a schematic diagram of the connection structure between the fixing component and the sealing ring of this utility model.

[0028] Explanation of reference numerals in the attached drawings: 1. Housing; 2. Feed inlet; 3. Discharge outlet; 4. Return pipe; 5. Drain pipe; 6. Motor; 7. Rotating rod; 8. Filter screen; 9. Fixing component; 10. Insertion part; 11. L-shaped connection part; 12. Hanging ring; 13. Sealing ring; 14. Slot; 15. Cleaning brush; 16. Insert block; 17. Sealing door. Detailed Implementation

[0029] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0030] Reference Figures 1-6 A multi-layer diatomaceous earth filter includes a housing 1, inside which multiple filter screens 8 are arranged in a vertical direction;

[0031] The inner wall of the housing 1 is provided with an installation structure corresponding to the position of each filter screen 8;

[0032] The mounting structure includes multiple fasteners 9 distributed circumferentially, each fastener 9 being connected to the inner wall of the housing 1 and having an insertion part 10 inside;

[0033] The filter screen plate 8 has multiple L-shaped connecting parts 11 on its outer side that correspond to the positions of the fixing parts 9. Each L-shaped connecting part 11 can be inserted into the corresponding insertion part 10 of the fixing part 9 to achieve the installation and fixation of the filter screen plate 8.

[0034] The top of the filter screen 8 is also provided with at least one hanging ring 12.

[0035] The raw liquid to be filtered is conveyed into the housing 1 through the pre-set inlet 2 at one end of the housing 1. After entering the housing 1, the raw liquid flows naturally downward along the vertical direction of the housing 1 due to gravity and subsequent filtration requirements, and initially moves towards the multi-layered filter screens 8 inside the housing 1. At this time, the installation structure set on the inner wall of the housing 1 for each filter screen 8 has already completed the fixation of the filter screens 8.

[0036] The installation method is as follows: During installation, the multiple L-shaped connecting parts 11 on the outside of the filter screen plate 8 should be aligned with the corresponding fixing parts 9 on the inner wall of the housing 1, and the L-shaped connecting parts 11 should be inserted into the plug-in parts 10 inside the fixing parts 9. The filter screen plate 8 can be stably installed in the housing 1 through plug-in cooperation.

[0037] Reference Figures 1-4 The inner wall of the housing 1 is provided with multiple sets of sealing rings 13. The number of sealing rings 13 in each set is set to multiple. Each set of sealing rings 13 and the fixing parts 9 in the same set are arranged alternately at intervals. The bottom of each set of sealing rings 13 is set with a rounded arc.

[0038] Multiple sets of sealing rings 13 arranged alternately with the same set of fixing parts 9 on the inner wall of the housing 1 will fit tightly against the edge of the filter screen plate 8, effectively filling the gap between the filter screen plate 8 and the inner wall of the housing 1, preventing the raw liquid from leaking out of the gap without filtration, and ensuring that all raw liquid can flow to the filter screen plate 8 for filtration.

[0039] Reference Figures 3-5 The top of the housing 1 is provided with a detachable cover, and the top of the cover is provided with a motor 6. The output end of the motor 6 is fixedly connected to a rotating rod 7. Multiple sets of cleaning brushes 15 are provided on the outside of the rotating rod 7. Each set of cleaning brushes 15 is located above the corresponding filter screen plate 8. Multiple sets of slots 14 are opened at both ends of the rotating rod 7. Each set of cleaning brushes 15 is fixedly connected to a plug 16 on the opposite side. Each set of plugs 16 is interference-fitted with the corresponding slot 14. Multiple sealing doors 17 are opened on the front side of the housing 1. The positions of the sealing doors 17 are staggered with the installation positions of the filter screen plate 8.

[0040] To prevent diatomaceous earth and trapped impurities from clogging the filter holes of the filter plate 8 during the filtration process, the motor 6 needs to be started. After the motor 6 is powered on, its output end will drive the rotating rod 7, which is fixedly connected to it, to rotate synchronously. Multiple sets of cleaning brushes 15 installed on the outside of the rotating rod 7 will rotate together with the rotating rod 7. The rotating cleaning brushes 15 will continuously sweep and brush the surface of the corresponding filter plate 8 below, and promptly remove the impurities attached to the filter plate 8 and the diatomaceous earth layer, maintain the unobstructed flow of the filter plate 8, and ensure that the filtration efficiency remains stable and does not decrease.

[0041] When the equipment is cleaning, first stop the filtration process, then introduce clean water into the housing 1 through the feed inlet 2, and at the same time close the valve inside the discharge port 3 to block the clean water from flowing downwards, and open the valve inside the drain pipe 5 to provide a channel for the sewage to be discharged.

[0042] When the cleaning brush 15 and filter screen 8 are worn due to long-term use and need to be replaced or maintained, first open the corresponding sealing door 17 on the front side of the housing 1, which is staggered with the installation position of the filter screen 8; for the cleaning brush 15, it can be pulled out directly away from the rotating rod 7, so that the insertion block 16 of the cleaning brush 15 is separated from the slot 14 of the rotating rod 7, and then the worn cleaning brush 15 can be taken out from the inside of the housing 1 through the sealing door 17.

[0043] Next, the removable cover on the top of the housing 1 is removed. When the cover is removed, the motor 6 installed on the top and the rotating rod 7 fixedly connected to the output end of the motor 6 will be taken out of the housing 1 together. Finally, the operator uses the external hook to hook the two hanging rings 12 on the top of the filter screen plate 8 and applies upward force to make the L-shaped connecting part 11 of the filter screen plate 8 disengage from the insertion part 10 of the fixing part 9. Then, the filter screen plate 8 is rotated so that the L-shaped connecting part 11 and the fixing part 9 are misaligned. Since the sealing ring 13 is made of flexible material and the outer wall is arc-shaped, the flexible sealing ring 13 will further fit the edge of the filter screen plate 8 and elastically reset as it moves. It will not obstruct the removal path of the filter screen plate 8, so that the worn filter screen plate 8 can be removed from the housing 1 for subsequent replacement of the new cleaning brush 15 and filter screen plate 8.

[0044] Reference Figures 1-2 One end of the housing 1 is provided with a feed inlet 2, the bottom end of the housing 1 is connected to a discharge outlet 3, one end of the housing 1 is provided with a return pipe 4, and the end of the housing 1 away from the return pipe 4 is provided with a drain pipe 5.

[0045] When the raw liquid flows to the multi-layer filter plate 8, it will pass through each filter plate 8 in sequence. By utilizing the filter holes of the filter plate 8 and the pre-laid diatomaceous earth filter layer, suspended particles, colloids, impurities and other pollutants in the raw liquid are gradually intercepted, so as to achieve layered deep purification of the liquid.

[0046] Working principle: First, complete the equipment installation preparation. Align the L-shaped connecting part 11 on the outside of the filter screen plate 8 with the corresponding insertion part 10 of the fixing part 9 on the inner wall of the housing 1 and insert it. Fix the filter screen plate 8 through the insertion. At this time, the flexible sealing rings 13 arranged alternately on the inner wall of the housing 1 and the fixing part 9 are tightly attached to the edge of the filter screen plate 8, filling the gap between them. At the same time, insert the insertion block 16 of the cleaning brush 15 with the slot 14 of the rotating rod 7. Then, install the detachable cover with the motor 6 on the top of the housing 1 to ensure that each set of cleaning brushes 15 on the outside of the rotating rod 7 is located above the corresponding filter screen plate 8.

[0047] During the filtration stage, the raw liquid to be filtered enters the housing 1 through the inlet 2 and flows vertically downwards, passing through multiple layers of filter plates 8 in sequence. Utilizing the filter holes and diatomaceous earth filter layer on the surface of the filter plates 8, suspended particles, colloids, and other impurities in the raw liquid are gradually intercepted, achieving layered deep purification. During this process, the motor 6 is activated, driving the rotating rod 7 to rotate, and the cleaning brush 15 rotates synchronously, continuously sweeping the surface of the filter plates 8 to remove attached diatomaceous earth residue and impurities, maintaining the unobstructed flow of the filter plates 8, and ensuring filtration efficiency. The purified liquid is finally discharged through the discharge port 3 at the bottom of the housing 1. If it is necessary to improve the purity, the liquid that does not meet the standards can be guided back to the housing 1 for filtration again through the return pipe 4.

[0048] When the equipment needs cleaning, stop the filtration process, introduce clean water through the inlet 2, close the discharge port 3 valve, open the drain pipe 5 valve, start the motor 6 to drive the cleaning brush 15 to sweep the filter screen 8, and the washed-off dirt is discharged with the clean water through the drain pipe 5.

[0049] When the cleaning brush 15 or filter screen 8 is worn and requires maintenance, first open the corresponding sealing door 17 on the front side of the housing 1, pull out the cleaning brush 15 so that its insert 16 separates from the slot 14 of the rotating rod 7, and take out the cleaning brush 15 through the sealing door 17; then remove the top cover, and take out the motor 6 and the rotating rod 7 together; finally, use the external hook to hook the hanging ring 12 of the filter screen 8, apply upward force to make the L-shaped connecting part 11 disengage from the insert part 10, rotate the filter screen 8 to make the L-shaped connecting part 11 misalign with the fixing part 9, and the flexible sealing ring 13 moves with the filter screen 8 and elastically resets, without obstructing the removal, and then take out the filter screen 8 from the housing 1 for replacement. After replacement, reset the equipment in reverse order and it can be used again.

[0050] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A multi-layer diatomaceous earth filter, characterized in that, include: The housing (1) has multiple filter screens (8) arranged vertically inside it; The inner wall of the housing (1) is provided with an installation structure corresponding to the position of each filter screen (8); The mounting structure includes multiple fasteners (9) distributed circumferentially, each of which is connected to the inner wall of the housing (1) and has an insertion part (10) inside. The filter screen (8) has multiple L-shaped connecting parts (11) on its outer side that correspond to the positions of the fixing parts (9). Each L-shaped connecting part (11) can be inserted into the insertion part (10) of the corresponding fixing part (9) to achieve the installation and fixing of the filter screen (8). The top of the filter screen (8) is also provided with at least one hanging ring (12).

2. A multi-layer diatomaceous earth filter according to claim 1, characterized in that: The inner wall of the housing (1) is provided with multiple sets of sealing rings (13), and the number of sealing rings (13) in each set is set to multiple, and the sealing rings (13) in each set are arranged alternately with the fixing members (9) in the same set.

3. A multi-layer diatomaceous earth filter according to claim 2, characterized in that: The bottom of each sealing ring (13) is rounded.

4. A multi-layer diatomaceous earth filter according to claim 1, characterized in that: The top of the housing (1) is provided with a detachable cover, and the top of the cover is provided with a motor (6), and the output end of the motor (6) is fixedly connected to a rotating rod (7).

5. A multi-layer diatomaceous earth filter according to claim 4, characterized in that: The outer side of the rotating rod (7) is provided with multiple sets of cleaning brushes (15), and each set of cleaning brushes (15) is located above the corresponding filter screen (8).

6. A multi-layer diatomaceous earth filter according to claim 5, characterized in that: Both ends of the rotating rod (7) are fixedly connected to multiple sets of slots (14), and each set of cleaning brushes (15) is fixedly connected to a plug (16) on the opposite side, and each set of plugs (16) is interference-fitted to the corresponding slot (14).

7. A multi-layer diatomaceous earth filter according to claim 1, characterized in that: The housing (1) has a feed inlet (2) at one end, a discharge port (3) at the bottom end of the housing (1), a return pipe (4) at one end of the housing (1), and a drain pipe (5) at the end of the housing (1) away from the return pipe (4).

8. A multi-layer diatomaceous earth filter according to claim 1, characterized in that: The front side of the housing (1) is provided with multiple sealing doors (17), and the positions of the sealing doors (17) are staggered with the installation positions of the filter screen (8).

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