Staged filter

Abstract

The utility model discloses a staged filter, relates to fertilizer filtration technical field, including collecting subassembly, collecting subassembly includes coarse filter plate, the left side and right side of said filter box are connected with collecting box, the junction of each collecting box and filter box is provided with side inlet and side outlet, the coarse filter plate is V-shaped plate shape, the side inlet is connected with the side outlet, the side outlet is connected with the side inlet, and the side outlet is connected with the side inlet. The coarse filtering plate is inversely arranged in the filtering box, the left side and the right side of the coarse filtering plate penetrate through the two side inlets and extend into the two collecting boxes, and a filtering net bag is mounted on the inner side of each collecting box. The inclined structure of the inverted V-shaped coarse filtering plate is utilized, so that impurities are directly guided into the filtering net bags on the two sides, the coarse filtering plate is prevented from being blocked, the filtering net bags are utilized for collecting the impurities, and the problem that the impurities are always located at the top of the coarse filtering plate, and the filtering effect is poor after long-term use is solved.

Description

Technical Field

[0001] This utility model relates to the field of fertilizer filtration technology, specifically to a graded filter. Background Technology

[0002] Microbial fertilizers are composed of specific microorganisms and nutrients, which can improve the yield and quality of agricultural products and enable agricultural products to absorb nutrients better. Most compound microbial fertilizers are processed into bacterial liquids. The bacterial liquids of microbial fertilizers contain a lot of residue, which needs to be filtered to avoid affecting subsequent fertilizer fermentation and formation.

[0003] As disclosed in CN218687225U, a microbial fertilizer liquid filtration device includes a filter box and a cover. A motor box is installed on the cover, and a drive motor is installed inside the motor box. A stirring shaft is installed on the drive motor. The stirring shaft has stirring blades and a brush plate. An insulated soft brush is installed on the brush plate. A vibrating screen plate is installed below the stirring shaft. A coarse filter iron mesh and a fine filter iron mesh are arranged sequentially below the vibrating screen plate. This utility model uses the stirring shaft to drive the stirring blades to stir the microbial fertilizer liquid, and then the vibrating motor drives the vibrating screen plate to vibrate. The coarse filter iron mesh and the fine filter iron mesh further filter impurities, thereby improving the filtration effect of the microbial fertilizer liquid.

[0004] In the multi-stage filtration process of liquids, since the primary filter plate directly faces these large particles of impurities, a lot of impurities often accumulate on its surface and inside. In the above solution, an insulated soft brush is rotated on the vibrating screen plate to achieve the rotation and scraping of the primary vibrating screen plate to clear the blockage. However, no structure is set up to collect the impurities, so the impurities are always at the top of the vibrating screen plate. Long-term use will lead to poor filtration effect. Utility Model Content

[0005] The purpose of this invention is to provide a graded filter to solve the technical problem of poor filtration effect after long-term use in the prior art.

[0006] The technical problem to be solved by this utility model can be achieved through the following technical solution:

[0007] A graded filter, a filter box, the filter box further including a sealing plate detachably disposed at its open end, a feed pipe being connected through to the top of the filter box, and a discharge pipe being connected through to the bottom of the filter box, and further including:

[0008] The filter housing includes two sets of collection components, each connected to the left and right sides of the filter box. Each collection component includes a coarse filter plate. Collection boxes are connected to both sides of the filter box. Each collection box has a through-hole with a side inlet and a side outlet at its connection to the filter box. The side inlet is located above the side outlet. The coarse filter plate is V-shaped and inverted inside the filter box. Both sides of the coarse filter plate pass through the two side inlets and extend into the interior of the two collection boxes. A filter screen is installed inside each collection box, located between the side inlet and the side outlet. Two sets of mounting slots are symmetrically formed on the left and right inner walls of the filter box. A middle filter plate is slidably connected between the two upper mounting slots, and a fine filter plate is slidably connected between the two lower mounting slots.

[0009] As a further embodiment of this utility model, the filtration hole radii on the coarse filter plate, medium filter plate, and fine filter plate decrease in sequence, forming a triple filtration structure inside the filter box.

[0010] As a further embodiment of this utility model: the end of the coarse filter plate is located directly above the corresponding filter mesh pocket.

[0011] As a further embodiment of this utility model: the outer edge of the filter bag is provided with a support frame for supporting the filter bag, and mounting rails are symmetrically arranged on both sides of the collection box. The support frame is slidably connected between the two mounting rails. The end of the collection box is also provided with a pull-out groove. One end of the support frame is provided with a sealing plate for sealing the pull-out groove. The sealing plate is detachably connected to the collection box by screws.

[0012] As a further embodiment of this utility model, a handle is provided on the side of the sealing plate away from the support frame.

[0013] As a further embodiment of this utility model, sealing strips are provided between the middle filter plate, the fine filter plate and the corresponding mounting groove.

[0014] The beneficial effects of this utility model are:

[0015] 1. This utility model utilizes the inclined structure of the inverted V-shaped coarse filter plate, which allows impurities to flow directly into the filter bags on both sides, thereby avoiding clogging of the coarse filter plate. The filter bags collect the impurities, solving the problem in the prior art where no structure for collecting impurities was provided, causing impurities to remain at the top of the vibrating screen plate, which would lead to poor filtration effect after long-term use.

[0016] 2. The support frame, filter bag and sealing plate of this utility model are integrated. By disassembling the connection between the sealing plate and the collection box, the whole unit with the filter bag can be pulled out, which makes it convenient to clean the impurities on the filter bag. Attached Figure Description

[0017] The present invention will be further described below with reference to the accompanying drawings.

[0018] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0019] Figure 2 This is a schematic diagram of the structure of the coarse filter plate and the filter box of this utility model.

[0020] Figure 3 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0021] Figure 4 This is a schematic diagram of the connection structure between the sealing plate and the collection box of this utility model.

[0022] In the diagram: 1. Filter box; 12. Feed pipe; 13. Discharge pipe; 14. Sealing plate; 2. Coarse filter plate; 21. Side inlet; 22. Collection box; 23. Side outlet; 3. Mounting groove; 4. Medium filter plate; 41. Sealing strip; 5. Fine filter plate; 6. Filter mesh bag; 61. Support frame; 62. Mounting guide rail; 63. Sealing plate; 64. Pull-out groove; 65. Handle. Detailed Implementation

[0023] 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 skilled in the art without creative effort are within the protection scope of the present utility model.

[0024] like Figures 1-4As shown, the graded filter includes a filter box 1, which also includes a detachable sealing plate 14 at its open end. A feed pipe 12 is connected through to the top of the filter box 1 for feeding, and a discharge pipe 13 is connected through to the bottom of the filter box 1 for discharging. The filter also includes a collection assembly, of which two sets are fixedly connected to the left and right sides of the filter box 1 respectively. The collection assembly includes a coarse filter plate 2. Collection boxes 22 are connected to both the left and right sides of the filter box 1. Each collection box 22 has a side inlet 21 and a side outlet 23 through its connection to the filter box 1. The side inlet 21 is located above the side outlet 23 and connects the collection box 22 and the filter box 1. The coarse filter plate 2 is V-shaped and is inverted inside the filter box 1. The coarse filter plate 2 extends through two side inlets 21 on both the left and right sides and into the interior of two collection boxes 22. This facilitates the introduction of dirt from the coarse filter plate 2 into the collection box 22, and also facilitates the accumulation and compression of sediment in the filter bag 6, causing residual water to flow back into the filter box 1 through the side outlet 23. The inverted V-shaped coarse filter plate 2 effectively guides the intercepted dirt to both sides, thereby avoiding the problem of the coarse filter plate 2 being blocked, which would affect the filtration effect. Each collection box 22 has a filter bag 6 installed on its inner side. The filter bag 6 is located between the side inlet 21 and the side outlet 23. Two sets of mounting grooves 3 are symmetrically opened on the left and right inner side walls of the filter box 1. The middle filter plate 4 is slidably connected between the two upper mounting grooves 3, and the fine filter plate 5 is slidably connected between the two lower mounting grooves 3.

[0025] Microbial fertilizer enters the filter box 1 through the feed pipe 12 and first falls onto the coarse filter plate 2. The coarse filter plate 2 initially filters out impurities from the microbial fertilizer. The sediment slides down the inclined coarse filter plate 2 into the filter bags 6 in the collection boxes 22 on both sides. Then, the sediment in the filter bags 6 accumulates and is squeezed, causing the residual liquid to flow back into the filter box 1 through the side outlet 23. Furthermore, the inclined structure of the coarse filter plate 2 allows impurities to flow directly into the filter bags 6 on both sides, thereby avoiding clogging of the coarse filter plate 2. This solves the problem in the comparative document where no structure for collecting impurities was set up, causing impurities to remain at the top of the vibrating screen plate, which would lead to poor filtration effect after long-term use.

[0026] In some specific implementation schemes, in order to facilitate the formation of a multi-stage filtration structure inside the filter box 1, the filtration hole radii on the coarse filter plate 2, the medium filter plate 4, and the fine filter plate 5 decrease sequentially, forming a triple filtration structure inside the filter box 1. The microbial fertilizer passes through the coarse filter plate 2, the medium filter plate 4, and the fine filter plate 5 in sequence, thereby improving the filtration effect of the microbial fertilizer and ensuring the quality of the microbial fertilizer.

[0027] In some specific implementations, the end of the coarse filter plate 2 is located directly above the corresponding filter bag 6, which is used to collect impurities, so that the residual water in the impurities separates downward and flows back into the filter box 1 through the side outlet 23, thereby improving the water recovery efficiency.

[0028] In some specific implementations, to facilitate the removal of impurities inside the filter bag 6, a support frame 61 is provided on the outer edge of the filter bag 6 to support the filter bag 6. The support frame 61 is square and ring-shaped. Mounting guide rails 62 are symmetrically arranged on both sides of the collection box 22. The support frame 61 is slidably connected between the two mounting guide rails 62. A pull-out groove 64 is also provided at the end of the collection box 22. A sealing plate 63 for sealing the pull-out groove 64 is provided at one end of the support frame 61. The sealing plate 63 is detachably connected to the collection box 22 by screws. The support frame 61, the filter bag 6 and the sealing plate 63 are integrated. By disassembling the connection between the sealing plate 63 and the collection box 22, the entire filter bag 6 can be pulled out, making it convenient to clean the impurities on the filter bag 6.

[0029] In some specific implementations, in order to facilitate the pulling out of the sealing plate 63, a handle 65 is provided on the side of the sealing plate 63 away from the support frame 61.

[0030] In some specific implementations, in order to prevent impurities from overflowing from the connection, a sealing strip 41 is provided between the middle filter plate 4, the fine filter plate 5 and the corresponding mounting groove 3 to enhance the sealing strength of the connection between the middle filter plate 4, the fine filter plate 5 and the filter box 1.

[0031] To facilitate understanding of the embodiments of this solution by those skilled in the art, the working principle of this solution will now be briefly explained in conjunction with specific application scenarios:

[0032] Microbial fertilizer enters the filter box 1 through the feed pipe 12, first falling onto the coarse filter plate 2. The coarse filter plate 2 initially filters out impurities from the microbial fertilizer. The sediment slides down the inclined coarse filter plate 2 into the filter bags 6 inside the collection boxes 22 on both sides. Then, the sediment accumulates and compresses in the filter bags 6, causing the remaining liquid to flow back into the filter box 1 through the side outlet 23. After initial filtration, the microbial fertilizer falls sequentially to the top of the middle filter plate 4 and the fine filter plate 5 for further separation and filtration. Finally, it is discharged outside the filter box 1 through the discharge pipe 13. This filter, with its coarse filter plate 2, middle filter plate 4, and fine filter plate 5 forming a triple filtration structure, achieves multi-stage filtration, thereby improving the filtration effect on the microbial fertilizer. Furthermore, the inclined structure of the coarse filter plate 2 allows impurities to directly flow into the filter bags on both sides. The internal flow guide 6 avoids clogging of the coarse filter plate 2, solving the problem in the comparative paper where the lack of a structure for collecting impurities resulted in impurities remaining at the top of the vibrating screen plate, leading to poor filtration performance over long-term use. Furthermore, the sealing plate 63 is detachably connected to the collection box 22 via screws, with the support frame 61, filter bag 6, and sealing plate 63 being an integrated unit. Disconnecting the sealing plate 63 from the collection box 22 allows the entire unit with the filter bag 6 to be pulled out for easy cleaning of impurities. The detachable connection between the filter box 1 and the sealing plate 14 also facilitates disassembly by personnel, enabling cleaning and maintenance of the coarse filter plate 2, medium filter plate 4, and fine filter plate 5. This further extends the service life of the filtration structure and significantly reduces the cost of cleaning.

[0033] The foregoing has described several embodiments of this utility model in detail, but these embodiments are not limited thereto and should not be considered as limiting the scope of this utility model. All equivalent changes and improvements made within the scope of the claims of this utility model should still fall within the patent coverage of this utility model.

Claims

1. A graded filter, comprising a filter box (1), the filter box (1) further comprising a sealing plate (14) detachably disposed at its open end, a feed pipe (12) being connected through to the top of the filter box (1), and a discharge pipe (13) being connected through to the bottom of the filter box (1), characterized in that, Also includes: The collection components are provided in two sets, which are respectively connected to the left and right sides of the filter box (1). Each collection component includes a coarse filter plate (2). A collection box (22) is connected to both the left and right sides of the filter box (1). Each collection box (22) is provided with a side inlet (21) and a side outlet (23) at the connection between it and the filter box (1). The side inlet (21) is located above the side outlet (23). The coarse filter plate (2) is V-shaped and is inverted inside the filter box (1). The coarse filter plate (2) extends through two side inlets (21) on both the left and right sides and into the interior of two collection boxes (22). Each collection box (22) has a filter bag (6) installed on its inner side. The filter bag (6) is located between the side inlet (21) and the side outlet (23). The left and right inner walls of the filter box (1) are symmetrically provided with two sets of mounting slots (3). The upper two mounting slots (3) are slidably connected to a middle filter plate (4), and the lower two mounting slots (3) are slidably connected to a fine filter plate (5). The outer edge of the filter bag (6) is provided with a support frame (61) for supporting the filter bag (6). The two side walls of the collection box (22) are symmetrically provided with mounting rails (62). The support frame (61) is slidably connected between the two mounting rails (62). The end of the collection box (22) is also provided with a pull-out groove (64). One end of the support frame (61) is provided with a sealing plate (63) for sealing the pull-out groove (64). The sealing plate (63) is detachably connected to the collection box (22) by screws. A sealing strip (41) is provided between the middle filter plate (4), the fine filter plate (5) and the corresponding mounting groove (3).

2. The filter according to claim 1, characterized in that The filtration hole radii on the coarse filter plate (2), medium filter plate (4), and fine filter plate (5) decrease sequentially, forming a triple filtration structure inside the filter box (1).

3. The filter according to claim 1, wherein The end of the coarse filter plate (2) is located directly above the corresponding filter bag (6).

4. The filter of claim 1, wherein, A handle (65) is provided on the side of the sealing plate (63) away from the support frame (61).

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