Wastewater filtration device for a food processing workshop

By installing filter frames and water seal structures in the wastewater discharge section, the problems of blockage and odor diffusion in the wastewater discharge system of the food processing workshop were solved, achieving smooth wastewater discharge and protection of the air environment.

CN224270387UActive Publication Date: 2026-05-26SICHUAN ZHANGFEI BEEF CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SICHUAN ZHANGFEI BEEF CO LTD
Filing Date
2025-07-02
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

The existing wastewater discharge system in the wastewater tanks of food processing workshops lacks filtration capabilities, leading to pipe blockage and the spread of foul odors, which affects production efficiency and the air environment.

Method used

A filter frame is installed in the sewage discharge section, combined with a water seal structure, to achieve sewage filtration and gas blocking, prevent impurities from entering the pipe and prevent the backflow of malodorous gases.

Benefits of technology

It effectively prevents pipe blockage, ensures smooth sewage discharge, reduces dredging work, protects the air environment of the factory, and improves production efficiency and health.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model discloses a wastewater filtration device for a food processing workshop, including a drainage channel with a wastewater discharge section extending downwards from its bottom; several protective plates spliced ​​on top of the drainage channel, with drainage holes evenly distributed on the protective plates; and a filter frame placed inside the wastewater discharge section of the drainage channel to filter and water seal the wastewater. This drainage structure is used for factory wastewater discharge. The drainage channel can be installed in a ground drainage ditch within the factory. Combined with the protective plates spliced ​​on top, it ensures that the top of the drainage channel is flush with the ground. Simultaneously, the wastewater discharge section of the drainage channel and the filter frame placed inside facilitate the filtration of discharged wastewater and achieve a water seal, preventing odors from flowing back up from below the wastewater discharge section and affecting the factory environment.
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Description

Technical Field

[0001] This utility model relates to the field of wastewater discharge technology, specifically a wastewater filtration device for a food processing workshop. Background Technology

[0002] In the food processing industry, many food processing workshops generate a large amount of wastewater during production operations. The current common wastewater treatment process is to directly dump the wastewater generated during processing into a pre-buried wastewater tank in the ground, and then use the wastewater discharge pipe at the bottom of the wastewater tank to collect and drain the wastewater for subsequent treatment.

[0003] However, existing wastewater discharge systems have significant drawbacks. Firstly, during the wastewater discharge stage, the wastewater discharge pipe connected to the bottom of the wastewater tank lacks a filtration function. Food processing wastewater often contains various solid impurities, suspended solids, and colloidal substances, such as food scraps, processing material residues, and added coagulants. These impurities enter the wastewater discharge pipe directly without filtration, easily accumulating and adhering inside the pipe, leading to blockage. Once the wastewater discharge pipe is blocked, it not only affects the normal discharge of wastewater, causing it to accumulate in the wastewater tank, but may even overflow onto the factory floor, interfering with normal production operations. Moreover, pipe unblocking is time-consuming and labor-intensive, requiring a significant investment of manpower, resources, and time.

[0004] Secondly, after the wastewater is discharged, the wastewater discharge pipe contains wastewater generated by various processing equipment. This wastewater has a complex composition and, during its residence and decomposition within the pipe, breeds a large number of microorganisms. The metabolic activities of these microorganisms produce gases with strong, foul odors, such as hydrogen sulfide and ammonia. These foul gases can spread through the air, flowing back into the wastewater tank along the discharge pipe, and then diffuse into the factory space outside the tank. This severely pollutes the air environment inside the factory, forcing construction workers to work in a strong odor environment for extended periods. This not only irritates the workers' olfactory system, causing physical discomfort such as dizziness and nausea, but may also reduce their work enthusiasm and efficiency, having an extremely adverse impact on their health and work experience. Utility Model Content

[0005] Therefore, in order to solve the above-mentioned shortcomings, this utility model provides a wastewater filtration device for a food processing workshop. The wastewater filtration device has a filter frame placed in the wastewater discharge section in the drainage channel. The combination of the filter frame and the wastewater discharge section can achieve filtration during wastewater discharge, thereby ensuring that the wastewater discharge will not be blocked. If necessary, it can be removed for cleaning at any time. At the same time, it can achieve water sealing to prevent the foul gas generated in the subsequent pipes of the wastewater discharge section from flowing back into the drainage channel and spreading into the factory space, thereby effectively ensuring the air environment in the factory.

[0006] This utility model is implemented by constructing a wastewater filtration device for a food processing workshop, including a drainage channel with a wastewater discharge section extending downward from its bottom.

[0007] Several protective panels are spliced ​​together on top of the drainage channel, and drainage holes are evenly opened on the protective panels;

[0008] The filter frame is placed inside the sewage discharge section of the drainage channel to filter and seal the sewage.

[0009] Preferably, a first placement groove extends from the top of the water tank in the drainage channel, and the protective plate is placed in the first placement groove to keep it flush with the top of the drainage channel.

[0010] Preferably, a sewage sealing groove is provided at the bottom of the drainage channel corresponding to the sewage discharge part, and a second placement groove is provided at the top of the sewage sealing groove. A drain pipe is provided at the center of the bottom of the sewage sealing groove, and the top of the drain pipe is higher than the bottom of the sewage sealing groove.

[0011] Preferably, the filter frame includes a frame body that is inserted into the sewage sealing groove and maintains a gap with the sewage sealing groove;

[0012] A support portion is provided on the outer top of the frame and corresponds to the size of the second placement slot;

[0013] The grip is located on the inner wall of the frame to facilitate lifting the filter frame.

[0014] Preferably, filter holes are evenly provided on at least one side of the frame, and a guide section is provided at the bottom of the frame. The guide section is flush with the outer wall of the frame and guides the sewage passing through the filter holes to the sewage sealing groove outside the drain pipe.

[0015] This utility model has the following beneficial effects:

[0016] This drainage structure, by installing a filter frame in the wastewater discharge section within the drainage channel, effectively intercepts various solid impurities, suspended solids, and colloidal substances, such as food scraps, processing material residues, and added coagulants, in food processing wastewater as it flows from the wastewater tank into the discharge section. This significantly reduces the possibility of impurities entering the wastewater discharge pipe, thereby fundamentally reducing the risk of pipe blockage due to impurity accumulation and adhesion. This not only ensures smooth wastewater discharge, allowing wastewater to continuously and stably flow from the wastewater tank through the drainage channel and preventing wastewater accumulation in the tank or even overflow onto the factory floor and disrupting production operations, but also greatly reduces the frequency of pipe dredging, saving enterprises significant manpower, material resources, and time costs, and effectively improving the production efficiency of food processing plants.

[0017] Meanwhile, the drainage structure, through the water seal formed by the combination of the filter frame and the sewage discharge section, successfully blocks the backflow path of malodorous gases generated in the subsequent pipes of the sewage discharge section, thereby preventing these gases from flowing back into the drainage channel and thus preventing them from spreading into the factory space. In this way, the air environment in the factory is effectively protected, creating a cleaner, more comfortable, and healthier production environment for the food processing plant, and strongly promoting the sustainable development of the enterprise. Attached Figure Description

[0018] The accompanying drawings are provided to further illustrate the present invention and form part of the specification. They are used together with the specific embodiments of the present invention to explain the present invention, but do not constitute any limitation on the present invention. In the drawings:

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This utility model only shows a structural schematic diagram of a protective plate;

[0021] Figure 3 yes Figure 2 A schematic diagram of the frontal view direction in the diagram;

[0022] Figure 4 yes Figure 3 Schematic diagram of the structure of section AA in the middle;

[0023] Figure 5 yes Figure 2 A schematic diagram of the structure after removing the filter frame;

[0024] Figure 6 This is a schematic diagram of the filter frame in this utility model;

[0025] Figure 7 This is a bottom view schematic diagram of the filter frame in this utility model;

[0026] In the diagram: 1. Drainage channel; 101. Sewage discharge section; 102. First placement tank; 103. Sewage sealing tank; 104. Second placement tank; 105. Drainage pipe; 2. Protective plate; 3. Filter frame; 301. Frame body; 302. Support part; 303. Holding part; 304. Guide part. Detailed Implementation

[0027] The technical solution of this utility model will be further described in detail below through specific embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only for illustration and explanation of this utility model and are not intended to limit this utility model in any way. The accompanying drawings in this utility model are only for illustrative purposes and to facilitate understanding of the embodiments and are not intended to limit this utility model in any way.

[0028] It should be noted that the structures, proportions, sizes, etc. shown in the accompanying drawings are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the conditions under which the present invention can be implemented. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and purposes that the present invention can produce, should still fall within the scope of the technical content disclosed in the present invention.

[0029] As described in the background section, existing wastewater tanks in factories cannot filter wastewater during discharge. Because food processing wastewater contains a lot of debris, it is easy to clog the pipes. Furthermore, after wastewater is discharged, microorganisms easily grow in the pipes of existing wastewater tanks, which can produce odors. These odors can spread outwards and affect the processing environment.

[0030] For the reasons stated above, please refer to the appendix for solutions to these problems. Figure 1 ~Appendix Figure 7 This utility model provides a wastewater filtration device for a food processing workshop, including a drainage channel 1, with a wastewater discharge section 101 extending downward from its bottom;

[0031] Several protective plates 2 are spliced ​​together on the top of the drainage channel 1, and drainage holes are evenly opened on the protective plates 2;

[0032] The filter frame 3 is placed inside the sewage discharge section 101 of the drainage channel 1 to filter and seal the sewage.

[0033] For example, to facilitate the stable placement of the protective panel within the drainage channel and ensure that the protective panel is at the same height as the factory floor, please refer to the attached document. Figure 2 The top of the drain channel 1 has a first placement groove 102 extending out, and the protective plate 2 is placed in the first placement groove 102 and kept flush with the top of the drain channel 1.

[0034] For example, to facilitate the placement of filter frames within drainage channels and sewage discharge sections while simultaneously achieving a water seal function, please refer to the attached document. Figure 3 - Appendix Figure 5The bottom of the drainage channel 1 is provided with a sewage sealing groove 103 at the corresponding position of the sewage discharge part 101. The top of the sewage sealing groove 103 extends outward to provide a second placement groove 104. A drain pipe 105 is provided at the center of the bottom of the sewage sealing groove 103. The top of the drain pipe 105 is higher than the bottom of the sewage sealing groove 103.

[0035] For example, to facilitate placing the filter frame inside the wastewater discharge section and also to facilitate lifting the filter frame for cleaning, please refer to the attached document. Figure 6 The filter frame 3 includes a frame body 301, which is inserted into the sewage sealing groove 103 and maintains a gap with the sewage sealing groove 103;

[0036] The support part 302 is disposed on the top outer side of the frame 301 and corresponds to the size of the second placement groove 103;

[0037] The grip 303 is provided on the inner wall of the frame 301 to facilitate lifting the filter frame 3.

[0038] Furthermore, to achieve wastewater filtration and a water seal function, please refer to the attached document. Figure 4 and attached Figure 7 The frame 301 has filter holes evenly distributed on at least one side. The bottom of the frame 301 is also provided with a guide part 304. The guide part 304 is flush with the outer wall of the frame 301 and guides the sewage passing through the filter holes to the sewage sealing groove 103 outside the drain pipe 105.

[0039] When the wastewater filtration device drains water, the filter frame 3 is placed in the wastewater sealing tank 103 and fixed by the support 302 and the second placement tank 104. Then the wastewater enters the water tank of the drainage channel 1 from the drain hole of the protective plate 2 and flows into the frame 301. Because the bottom of the frame 301 is sealed, the wastewater can only be discharged from the filter holes opened on the side wall. Impurities larger than the filter holes accumulate in the filter frame 3, thereby achieving wastewater filtration. The wastewater passing through the filter holes flows downward from the outer wall of the frame 301 and drips from the guide part 304 to the bottom of the wastewater sealing tank 103. When the wastewater level in the wastewater sealing tank 103 overflows the top of the drain pipe 105, it is discharged from the drain pipe 105, thereby achieving water sealing.

[0040] The above description is a detailed description of the preferred embodiments of the present utility model. However, the embodiments are not intended to limit the scope of the patent application of the present utility model. All equivalent changes or modifications made under the technical spirit of the present utility model should fall within the patent scope covered by the present utility model.

Claims

1. A wastewater filtration device for a food processing workshop, characterized in that: include, The drainage channel has a sewage discharge section extending downwards at its bottom. Several protective panels are spliced ​​together on top of the drainage channel, and drainage holes are evenly opened on the protective panels; The filter frame is placed inside the sewage discharge section of the drainage channel to filter and seal the sewage.

2. The wastewater filtration device for a food processing workshop according to claim 1, characterized in that: The top of the drainage channel has a first placement slot, and the protective plate is placed in the first placement slot and kept flush with the top of the drainage channel.

3. The wastewater filtration device for a food processing workshop according to claim 1, characterized in that: A sewage sealing groove is provided at the bottom of the water tank of the drainage channel, corresponding to the sewage discharge part. A second placement groove extends outward from the top of the sewage sealing groove. A drain pipe is provided at the center of the bottom of the sewage sealing groove, and the top of the drain pipe is higher than the bottom of the sewage sealing groove.

4. The wastewater filtration device for a food processing workshop according to claim 2, characterized in that: The filter frame includes a frame body that is inserted into the sewage sealing groove and maintains a gap with the sewage sealing groove. A support portion is provided on the outer top of the frame and corresponds to the size of the second placement slot; The grip is located on the inner wall of the frame to facilitate lifting the filter frame.

5. The wastewater filtration device for a food processing workshop according to claim 4, characterized in that: The frame has filter holes evenly distributed on at least one side, and a guide section is provided at the bottom of the frame. The guide section is flush with the outer wall of the frame and guides the sewage passing through the filter holes to the sewage sealing groove outside the drain pipe.