Filter screen structure of white spirit vinasse feed dewatering equipment

By designing inclined filter holes and a lifting motor-driven anti-clogging plate structure in the dewatering equipment for liquor lees, the problem of easy clogging of the filter screen is solved, achieving efficient dewatering and low-cost maintenance.

CN224541100UActive Publication Date: 2026-07-24ZHENJIANG HENGXIN BIOTECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHENJIANG HENGXIN BIOTECH CO LTD
Filing Date
2025-08-29
Publication Date
2026-07-24

AI Technical Summary

Technical Problem

The existing filter screen structure of the dewatering equipment for liquor residue is prone to clogging, which affects the dewatering efficiency and is difficult to clean, increasing operating costs.

Method used

A filter structure including a filter assembly and an anti-clogging assembly was designed. The inner walls of the filter holes are inclined and the bottom hole diameter is smaller than the top hole diameter. Combined with the vertical movement of the anti-clogging plate driven by the lifting motor, the filter holes are periodically cleared to prevent clogging.

Benefits of technology

It effectively prevents filter clogging, improves dehydration efficiency, reduces equipment downtime, and lowers cleaning difficulty and maintenance costs.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a filter screen structure of white spirit vinasse feed dewatering equipment, including filter screen subassembly and anti -blocking subassembly in dewatering box body, anti -blocking subassembly is located filter screen subassembly bottom, and dewatering box body has top cap and drain trap, and filter screen subassembly contains filter screen fixed plate and filter screen, and anti -blocking subassembly has jacking motor and anti -blocking board, and motor drive anti -blocking board vertical movement adapts filter screen, filter screen filter hole inner wall is inclined, and the bottom aperture is less than top, both benefit water permeation and discharge, and reduce vinasse accumulation and blockage, and anti -blocking piece and filter hole size match, and motor drive anti -blocking board can regular physical dredge filter hole, avoid residual blockage, guarantee water -permeable capacity and dewatering effect stability, and anti -blocking subassembly reduces blockage, reduces downtime cleaning time, and filter hole inclined plane has self -cleaning, and cooperates mechanical cleaning, reduces manual cleaning frequency and difficulty, saves maintenance cost.
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Description

Technical Field

[0001] This utility model specifically relates to a filter structure for a dehydration device for liquor lees feed. Background Technology

[0002] The production of baijiu (Chinese liquor) generates a large amount of lees. Utilizing this lees to produce animal feed is a common and effective method, achieving resource reuse and generating economic benefits. However, due to the high moisture content of the lees, direct drying requires significant energy, and the liquid within the lees is not easily recycled. Therefore, pressing and dehydrating the lees is a lower-cost method with a higher recycling rate.

[0003] In the dehydration process, the filter structure plays a crucial role, serving as a key component for the efficient separation of distiller's grains from the liquid. Existing dehydration equipment for distiller's grains is prone to clogging during the compression process. Distiller's grains contain various impurities, such as residual grain particles and rice husk fragments. During compression, these impurities easily become embedded in the filter's pores, hindering the smooth passage of liquid and thus affecting dehydration efficiency. Furthermore, cleaning existing clogged filters is difficult. Once clogged, significant time and manpower are required for cleaning, a process that is often cumbersome, impacting both equipment uptime and operational costs for the company.

[0004] Therefore, it is necessary to invent a filter structure for a dewatering device for liquor lees feed to solve the above problems. Utility Model Content

[0005] (a) Purpose of the utility model To address the technical problems existing in the background art, this utility model proposes a filter screen structure for a dewatering equipment for liquor lees feed, which can prevent filter screen clogging.

[0006] (II) Technical Solution To achieve the above objectives, this utility model provides the following technical solution: a filter screen structure for a dewatering equipment for liquor lees feed, including a filter screen assembly and an anti-clogging assembly installed inside the dewatering chamber, wherein the anti-clogging assembly is installed at the bottom of the filter screen assembly, a top cover is installed on the top of the dewatering chamber, and a drain hopper is installed at the bottom; The filter assembly includes a filter fixing plate installed at the bottom of the inner wall of the dehydration tank, and a filter is installed inside the filter fixing plate; The anti-clogging component includes a lifting motor fixed to the outer wall of the dehydration chamber. One end of the lifting motor extends into the interior of the dehydration chamber, and an anti-clogging plate is connected to its end. The lifting motor drives the anti-clogging plate to move vertically, which is compatible with the filter screen.

[0007] Preferably, the filter screen fixing plate has an installation groove on its top, and a fixing frame is installed on the outside of the filter screen. The fixing frame is installed in the installation groove. The filter screen is composed of multiple filter holes, which are evenly arranged. The inner walls of the filter holes are inclined, and the diameter of each filter hole is smaller than its top diameter. The filter holes are matched with the installation position of the anti-clogging plate.

[0008] Preferably, the anti-clogging plate has multiple sets of anti-clogging blocks installed inside, each set of anti-clogging blocks has four blocks, and each set of anti-clogging blocks has a drainage groove inside and around it. The anti-clogging blocks match the filter holes, and the two are the same size.

[0009] Preferably, a plurality of lifting rods are installed on one side of the lifting motor, and the tops of the plurality of lifting rods jointly support the anti-blocking plate. The outer walls on both sides of the dehydration tank are provided with mounting holes that match the lifting rods.

[0010] Preferably, a fixing plate is installed on the top of the lifting motor, and the top of the fixing plate is provided with multiple reinforcing ribs, one side of which is fixed to the outer wall of the dehydration tank.

[0011] Compared with the prior art, the beneficial effects of the above-mentioned technical solution of this utility model are: 1. The filter screen of this utility model is designed with sloping inner walls on all four sides and the bottom hole diameter is smaller than the top hole diameter. This structure facilitates the rapid penetration of water in the slag into the filter hole and discharge, and also reduces the accumulation and blockage of slag at the filter hole inlet, ensuring continuous and efficient water separation. 2. This utility model uses an anti-clogging block that matches the size of the filter holes, combined with a lifting motor to drive the anti-clogging plate to move vertically. This allows for regular physical unclogging of the filter holes, preventing residue from clogging them and ensuring that the filter screen always maintains a high water permeability, thereby stabilizing the dewatering effect. 3. This utility model reduces the probability of filter clogging from the source through the active unblocking function of the anti-clogging component, and reduces the equipment downtime caused by frequent filter cleaning. The inclined design of the filter hole itself has a certain self-cleaning tendency, which reduces the adhesion of sludge. Combined with the mechanical cleaning of the anti-clogging block, it further reduces the frequency and difficulty of manual cleaning and saves maintenance costs. Attached Figure Description

[0012] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model; Figure 2 This is a schematic diagram showing the disassembled internal filter structure of this utility model; Figure 3 This is a schematic diagram of the disassembled structure of the anti-blocking component of this utility model; Figure 4 This is a schematic diagram of the anti-blocking plate part of the present utility model; Figure 5 This is a schematic diagram of the filter screen structure of this utility model; Figure 6 This is a schematic diagram of the filter screen fixing plate and filter screen installation structure of this utility model.

[0014] Explanation of reference numerals in the attached figures: 1. Dehydration chamber; 11. Mounting hole; 2. Filter assembly; 21. Filter fixing plate; 22. Filter; 23. Mounting groove; 24. Fixing frame; 25. Filter hole; 3. Anti-clogging component; 31. Lifting motor; 32. Anti-clogging plate; 33. Anti-clogging block; 34. Drainage trough; 35. Lifting rod; 36. Fixing plate; 37. Reinforcing rib; 4. Top cover; 5. Drainage hopper. Detailed Implementation

[0015] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0016] This utility model provides, for example Figure 1-6 The filter structure of a dewatering equipment for liquor lees feed shown includes a filter assembly 2 and an anti-clogging component 3 installed inside the dewatering chamber 1. The anti-clogging component 3 is installed at the bottom of the filter assembly 2. A top cover 4 is installed on the top of the dewatering chamber 1, and a drain hopper 5 is installed at the bottom. Specifically, the filter assembly 2 includes a filter fixing plate 21 installed at the bottom of the inner wall of the dehydration chamber 1, and a filter 22 is installed inside the filter fixing plate 21; Specifically, the anti-clogging component 3 includes a lifting motor 31 fixed on the outer wall of the dehydration chamber 1. One end of the lifting motor 31 extends into the interior of the dehydration chamber 1, and its end is connected to an anti-clogging plate 32. The lifting motor 31 drives the anti-clogging plate 32 to move vertically, which is matched with the filter screen 22.

[0017] In this embodiment, the dehydration chamber 1 is first fixed to ensure that the mounting holes 11 on both sides of its outer wall are horizontal; a mounting position for the drain hopper 5 is reserved at the bottom of the dehydration chamber 1, and a mounting interface for the top cover 4 is reserved at the top.

[0018] Specifically, the top of the filter screen fixing plate 21 is provided with an installation groove 23, and the filter screen 22 is equipped with a fixing frame 24. The fixing frame 24 is installed in the installation groove 23. The filter screen 22 is composed of multiple filter holes 25. The multiple filter holes 25 are evenly arranged, and the inner walls of the filter holes 25 are inclined. The diameter of the filter holes 25 is smaller than the diameter of its top hole. The filter holes 25 are matched with the installation position of the anti-clogging plate 32.

[0019] In this embodiment, the filter screen fixing plate 21 is horizontally installed at the bottom of the inner wall of the dehydration tank 1, ensuring that the mounting groove 23 at its top is horizontal and without offset.

[0020] Specifically, the filter screen 22 is pre-treated, and the filter screen 22 is wrapped with a fixing frame 24. The filter holes 25 are sloping structures that are wider at the top and narrower at the bottom, and multiple filter holes 25 are evenly arranged.

[0021] Specifically, the filter screen 22 with the fixing frame 24 is embedded into the mounting groove 23 of the filter screen fixing plate 21, so that the fixing frame 24 and the mounting groove 23 fit tightly together, thus fixing the filter screen 22.

[0022] Specifically, the anti-blocking plate 32 has multiple sets of anti-blocking blocks 33 installed inside, with four blocks in each set. Each set of anti-blocking blocks 33 has a drainage groove 34 inside and around it. The anti-blocking blocks 33 are matched with filter holes 25, and the two are the same size.

[0023] Specifically, a plurality of lifting rods 35 are installed on one side of the lifting motor 31, and the tops of the plurality of lifting rods 35 jointly support the anti-blocking plate 32. The outer walls on both sides of the dehydration box 1 are provided with mounting holes 11 that match the lifting rods 35.

[0024] Specifically, a fixing plate 36 is installed on the top of the lifting motor 31, and multiple reinforcing ribs 37 are provided on the top of the fixing plate 36. One side of the multiple reinforcing ribs 37 is fixed to the outer wall of the dehydration tank 1.

[0025] In this embodiment, a lifting motor 31 is installed on the outer wall of the dehydration chamber 1 at the position corresponding to the bottom of the filter screen 22. First, a fixing plate 36 is fixed on the top of the lifting motor 31, and then the fixing plate 36 is connected to the outer wall of the dehydration chamber 1 by multiple reinforcing ribs 37 to enhance the stability of the lifting motor 31.

[0026] Specifically, multiple lifting rods 35 are passed through the mounting holes 11 on both sides of the dehydration tank 1, connected at the bottom to the lifting motor 31, and together at the top to support the anti-blocking plate 32, ensuring that the lifting rods 35 are perpendicular to the anti-blocking plate 32 and are subjected to uniform force.

[0027] Specifically, the anti-clogging plate 32 and the anti-clogging block 33 are assembled by fixing multiple sets of anti-clogging blocks 33 inside the anti-clogging plate 32, so that the position and size of the anti-clogging block 33 are completely matched with the filter holes 25 of the filter screen 22; at the same time, drainage grooves 34 are opened inside and around each set of anti-clogging blocks 33 to ensure that water can pass through.

[0028] Specifically, start the lifting motor 31 to drive the anti-blocking plate 32 to move vertically up and down, and check whether the anti-blocking block 33 can be accurately inserted into the filter hole 25 and whether the drain tank 34 is unobstructed.

[0029] In this embodiment, the top cover 4 is opened, and the baijiu lees feed to be dehydrated is poured into the dehydration chamber 1, where the baijiu lees fall onto the filter screen 22; the top cover 4 is closed, the dehydration equipment is started, and the liquid seeps out through the filter holes 25 of the filter screen 22 and is discharged through the drain hopper 5.

[0030] Specifically, during the dehydration process, the lifting motor 31 is started simultaneously. The lifting motor 31 drives the lifting rod 35 to raise the anti-clogging plate 32 vertically, so that the anti-clogging block 33 is accurately inserted into the filter hole 25. By utilizing the matching between the anti-clogging block 33 and the filter hole 25, the sludge blocked in the filter hole 25 is pushed back above the filter screen 22.

[0031] Specifically, the lifting motor 31 then drives the anti-clogging plate 32 to descend in the reverse direction, the anti-clogging block 33 disengages from the filter hole 25, and the filter hole 25 resumes its drainage function; during the descent, the water accumulated on the anti-clogging plate 32 flows through the drain trough 34 to the drain hopper 5, preventing water residue. The above actions are repeated to continuously clean the filter hole 25.

[0032] Specifically, after dehydration is complete, turn off the dehydration equipment and the lifting motor 31, open the top cover 4 and take out the dehydrated liquor lees; if cleaning is required, the filter screen 22 can be removed, the filter holes 25 and the anti-clogging block 33 can be cleaned separately, and then reassembled.

[0033] In this embodiment, the filter hole 25 has a sloping design that is wider at the top and narrower at the bottom: the top hole has a large diameter, which facilitates the rapid penetration of liquid in the residue; the bottom hole has a small diameter, which reduces the direct leakage of residue particles, and the inner wall of the sloping surface can guide the flow of liquid and accelerate dehydration.

[0034] Specifically, the anti-clogging block 33 is precisely matched with the filter hole 25: when the lifting motor drives the anti-clogging plate 32 to move up and down, the anti-clogging block 33 can be completely embedded in the filter hole 25, forcibly pushing the clogged residue back onto the top of the filter screen, thus avoiding the decrease in dewatering efficiency caused by long-term clogging of the filter hole. In actual operation, this can reduce the filter hole clogging rate and shorten the dewatering time.

[0035] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A filter screen structure for a dewatering device for liquor lees feed, characterized in that: Includes a filter assembly (2) and an anti-clogging assembly (3) installed inside the dehydration chamber (1). The anti-clogging assembly (3) is installed at the bottom of the filter assembly (2). The top of the dehydration chamber (1) is equipped with a top cover (4) and the bottom is equipped with a drain hopper (5). The filter assembly (2) includes a filter fixing plate (21) installed at the bottom of the inner wall of the dehydration chamber (1), and a filter (22) is installed inside the filter fixing plate (21). The anti-clogging component (3) includes a lifting motor (31) fixed on the outer wall of the dehydration chamber (1). One end of the lifting motor (31) extends into the interior of the dehydration chamber (1), and its end is connected to an anti-clogging plate (32). The lifting motor (31) drives the anti-clogging plate (32) to move vertically, which is matched with the filter screen (22).

2. The filter screen structure of the dewatering equipment for liquor lees as described in claim 1, characterized in that: The filter screen fixing plate (21) has an installation groove (23) on its top. The filter screen (22) is fitted with a fixing frame (24) on its outside. The fixing frame (24) is fitted into the installation groove (23). The filter screen (22) is composed of multiple filter holes (25). The multiple filter holes (25) are evenly arranged. The inner walls of the filter holes (25) are inclined. The diameter of the filter holes (25) is smaller than the diameter of its top hole. The filter holes (25) are fitted into the anti-clogging plate (32) at the installation position.

3. The filter screen structure of the dewatering equipment for liquor lees as described in claim 2, characterized in that: The anti-blocking plate (32) is equipped with multiple sets of anti-blocking blocks (33), each set of anti-blocking blocks (33) has four blocks, and each set of anti-blocking blocks (33) has a drainage groove (34) inside and around it. The anti-blocking blocks (33) match the filter holes (25), and the two are the same size.

4. The filter screen structure of the dewatering equipment for liquor lees as described in claim 1, characterized in that: Multiple lifting rods (35) are installed on one side of the lifting motor (31), and the tops of the multiple lifting rods (35) jointly support the anti-blocking plate (32). The outer walls on both sides of the dehydration box (1) are provided with mounting holes (11) that match the lifting rods (35).

5. The filter screen structure of the dewatering equipment for liquor lees as described in claim 1, characterized in that: The top of the lifting motor (31) is equipped with a fixing plate (36), and the top of the fixing plate (36) is provided with multiple reinforcing ribs (37), and one side of the multiple reinforcing ribs (37) is fixed to the outer wall of the dehydration box (1).