An anti-clogging device for the ventilation and oxygen dissolution structure of fermentation equipment.
The rotary filter structure, which combines guide plates and scrapers, solves the problem of easy clogging of the filter screen in the ventilation and dissolved oxygen system of fermentation equipment, achieving efficient filtration, self-cleaning and convenient maintenance, and improving the stability and lifespan of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- HENAN ZHONGXIN NEW ENERGY IND DEV CO LTD
- Filing Date
- 2025-04-10
- Publication Date
- 2026-05-26
AI Technical Summary
In traditional fermentation equipment ventilation and oxygenation systems, filters are prone to clogging, leading to increased gas flow resistance, reduced oxygenation efficiency, and impact on the stability of the fermentation process. Furthermore, frequent disassembly and cleaning are required, increasing time costs and equipment wear.
A guide plate guides oxygen to rotate the filter ball, which in turn scrapes away impurities, forming a collection chamber to collect the impurities. A limiting rod and a sealing structure ensure system stability and sealing. The filter pipes use a rotating connection for easy disassembly and assembly.
It achieves high-efficiency filtration and self-cleaning, reduces manual maintenance, improves equipment operating efficiency, ensures system stability and sealing, facilitates maintenance, and extends equipment life.
Smart Images

Figure CN224280251U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fermentation equipment, specifically to an anti-clogging device for the ventilation and dissolved oxygen structure of fermentation equipment. Background Technology
[0002] In the ventilation and dissolved oxygen systems of fermentation equipment, clogging of the filter structure has always been a key factor affecting the equipment's operating efficiency and stability. Traditional ventilation and dissolved oxygen filtration devices mostly use fixed filter screens or filter cartridges to filter impurities in the gas through physical interception. However, the filtration area of fixed filter screens is limited. When impurities such as microbial metabolites and culture medium particles generated during fermentation adhere to the filter screen, they gradually form a dense clogging layer. This clogging not only increases gas flow resistance and reduces dissolved oxygen efficiency, but in severe cases, it can even lead to local pressure imbalances in the ventilation ducts, affecting the stability of the fermentation process. To maintain the filtration effect, the filter screen needs to be frequently disassembled, cleaned, or replaced. This process not only requires shutdown and interruption of the fermentation process, increasing time costs, but repeated disassembly and assembly can also cause wear and tear on equipment components or a decrease in sealing performance, further shortening the equipment's service life. Utility Model Content
[0003] In view of this, the present invention provides an anti-clogging device for the ventilation and oxygen dissolution structure of fermentation equipment. It can guide oxygen through the guide plate to pass over the filter ball, causing the filter ball to rotate towards the side with the scraper. When the base surface of the filter ball passes the scraper, the scraper scrapes off the impurities on the filter ball and collects them in the collection chamber, thus ensuring the filtration effect of the filter ball.
[0004] To solve the above-mentioned technical problems, this utility model provides an anti-clogging device for the ventilation and dissolved oxygen structure of fermentation equipment, including a ventilation duct for conveying gas into the fermentation tank. A filter pipe located in the middle of the ventilation duct contains a filter ball for filtering impurities in the gas. A scraper is provided on one side of the filter ball, which is in contact with the side base surface of the filter ball. A guide plate is provided on the other side of the filter ball. When the gas is conveyed into the fermentation tank through the ventilation duct, when the gas passes through the guide plate in the filter pipe, the guide plate guides the gas, causing the gas to pass over the filter ball and drive the filter ball to rotate. Limiting rods provided on both sides of the filter ball allow the filter ball to rotate around the limiting rods, which limit the movement of the filter ball. When the filter ball rotates, the side base surface of the filter ball contacts the scraper, and the scraper removes the impurities adhering to the filter ball.
[0005] The filter pipe above the scraper has a slot, and a mounting plate that connects to the scraper is installed at the slot. The slot makes it easy to remove and put the mounting plate off the filter pipe. The mounting plate is used to connect the scraper and seal the slot, so that the filter pipe is still a whole and prevents gas leakage.
[0006] The bottom of the slot is provided with a limiting groove, and the bottom of the mounting plate is provided with a limiting hole that fits against the inner side wall of the limiting groove. The limiting block is located in the limiting groove. The limiting groove is used to limit the limiting block and prevent the mounting plate from moving left and right in the slot. The limiting block on the mounting plate facilitates the quick installation of the mounting plate and provides a certain positioning for the mounting plate when it is installed in the slot.
[0007] The mounting plate, scraper, and filter ball work together to form a collection chamber. The mounting plate is connected to the base surface of the scraper to form the bottom cover and one side baffle of the collection chamber. The scraper is the bottom plate of the collection chamber, and the filter ball is the other side baffle of the collection chamber. After the scraper scrapes off the impurities adhering to the surface of the filter ball, the impurities are located on the upper base surface of the scraper, which is inside the collection chamber. The mounting plate is removed from the slot to complete the cleaning of the device inside the collection chamber.
[0008] The mounting plate is equipped with a limiting component above it for fixing the mounting plate. The limiting component is a pressure bar that rotates above the filter pipe and is fitted to the base surface of the mounting plate.
[0009] The filter pipe has connectors at both ends that connect to the ventilation pipe. The connectors are connecting nuts that rotate on the filter pipe, and the ventilation pipe has threads that match the connecting nuts.
[0010] The beneficial effects of the above-mentioned technical solution of this utility model are as follows:
[0011] 1. High-efficiency filtration and self-cleaning: The filter balls are driven to rotate by airflow to achieve all-round filtration, while the scraper automatically removes impurities, avoiding manual cleaning and improving efficiency.
[0012] 2. Convenient maintenance: The mounting plate can be quickly removed through the slot, making it easy to clean impurities in the collection chamber without disassembling the entire filter pipe.
[0013] 3. Reliable sealing: The limiting fit between the mounting plate and the slot, as well as the fixing of the pressure rod, ensure the overall sealing of the filter pipe and prevent gas leakage.
[0014] 4. Stable structure: The limiting rod constrains the rotation trajectory of the filter ball, and the guide plate optimizes the airflow path, ensuring the stability of the system operation.
[0015] 5. Flexible disassembly and assembly: The filter pipe is connected to the ventilation pipe by rotating nuts at both ends, which facilitates quick disassembly, assembly and maintenance. Attached Figure Description
[0016] Figure 1 This is a schematic diagram of the main structure of an anti-clogging device for a ventilation and dissolved oxygen structure in a fermentation equipment according to the present invention;
[0017] Figure 2 This is a cross-sectional view of the collection cavity of this utility model;
[0018] Figure 3 This is a cross-sectional view of the slotted structure of this utility model;
[0019] Figure 4 This utility model Figure 3 A partial structural diagram of A in the middle;
[0020] Figure 5 This is a cross-sectional view of the limiting rod of this utility model.
[0021] Explanation of reference numerals in the attached drawings: 1. Ventilation duct; 2. Filter duct; 3. Filter ball; 4. Scraper; 5. Guide plate; 6. Groove; 7. Mounting plate; 8. Limiting groove; 9. Limiting block; 10. Limiting rod; 11. Limiting component; 12. Connecting component. Detailed Implementation
[0022] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the following will be described in conjunction with the accompanying drawings of the embodiments of this utility model. Figure 1-4 The technical solutions of the embodiments of this utility model are clearly and completely described herein. Obviously, the described embodiments are only some, not all, of the embodiments of this utility model. All other embodiments obtained by those skilled in the art based on the described embodiments of this utility model are within the protection scope of this utility model.
[0023] This embodiment provides an anti-clogging device for the ventilation and dissolved oxygen structure of a fermentation equipment, such as... Figure 1 , 2 As shown in Figures 3 and 4: the system includes a ventilation duct 1 for supplying gas into the fermenter. A filter pipe 2 located in the middle of the ventilation duct 1 contains a filter ball 3 for filtering impurities from the gas. A scraper 4 is located on one side of the filter ball 3, and the scraper 4 is attached to the side base surface of the filter ball 3. A guide plate 5 is located on the other side of the filter ball 3. When the gas is supplied to the fermenter through the ventilation duct 1, the guide plate 5 inside the filter pipe 2 guides the gas, causing the filter ball 3 to rotate as it passes over it. Limiting rods 10 located on both sides of the filter ball 3 allow the filter ball 3 to rotate around the limiting rods 10, which limit the movement of the filter ball 3. When the filter ball 3 rotates, the side base surface of the filter ball 3 contacts the scraper 4, which scrapes away the impurities adhering to the filter ball 3.
[0024] The filter pipe 2 above the scraper 4 has a slot 6, such as... Figure 3 , 4As shown: The bottom of the slot 6 is provided with a limiting groove 8, and the slot 6 is provided with an installation plate 7 connected to the scraper 4. The bottom of the installation plate 7 is provided with a limiting block 9 that fits against the inner side wall of the limiting groove 8. After the installation plate 7 is inserted into the slot 6, the limiting block 9 at its bottom cooperates with the limiting groove 8 at the bottom of the slot 6 to realize the left and right limiting of the installation plate 7. The side base surface of the installation plate 7 fits against the inner wall of the filter pipe 2, thereby sealing the slot 6 and making the filter pipe 2 a whole, preventing gas leakage.
[0025] The mounting plate 7, scraper 4, and filter ball 3 cooperate to form a collection chamber, such as Figure 2 , 3 As shown in Figure 4: The mounting plate 7 is connected to the upper base surface of the scraper 4, forming the bottom cover and one side baffle of the collection chamber; the scraper 4 serves as the bottom plate of the collection chamber; and the filter ball 3 serves as the other side baffle of the collection chamber. When the scraper 4 scrapes away the impurities on the surface of the filter ball 3, the impurities will fall onto the upper base surface of the scraper 4, that is, enter the collection chamber.
[0026] The mounting plate 7 is provided with a limiting member 11 for fixing, such as... Figure 3 , 4 As shown: The limiting member 11 is a rotatable pressure rod, which is located above the filter pipe 2. One end of the pressure rod is hinged to the connecting block provided on the filter pipe 2, and the other end can be rotated to fit against the base surface on the mounting plate 7. The mounting plate 7 is fixed in the slot 6 by the clamping force of the pressure rod. A second connecting block is provided at the other end of the pressure rod, and a slot matching the pressure rod is provided on the second connecting block. The pressure rod is locked in the slot, which can effectively prevent the pressure rod from tilting upward and better hold the mounting plate 7.
[0027] The filter pipe 2 is equipped with connectors 12 at both ends for connection to the ventilation pipe 1, such as... Figure 3 , 4 As shown: Connector 12 is a rotatable connecting nut. Both ends of the ventilation duct 1 have external threads that match the connecting nut, while both ends of the filter duct 2 have internal threads. By rotating the connecting nut onto the threaded interfaces of the ventilation duct 1 and the filter duct 2, a secure connection is achieved between the filter duct 2 and the ventilation duct 1. This connection method not only facilitates assembly and disassembly but also ensures a tight seal at the connection point, preventing gas leakage.
[0028] Working Principle: When gas is transported through ventilation duct 1, it first enters filter duct 2. The guide plate 5 inside filter duct 2 changes the airflow direction, causing the gas to pass over filter balls 3, which in turn rotate around the limiting rods 10 on both sides. During rotation, filter balls 3 filter impurities in the gas through their surface. During rotation, their side base surfaces adhere to scraper 4, which scrapes away the impurities adhering to the surface of filter balls 3 into the collection chamber formed by the scraper 4's upper base surface. Mounting plate 7 is connected to filter duct 2 via slot 6. Its bottom limiting block 9 cooperates with the limiting groove 8 at the bottom of slot 6 for positioning. Mounting plate 7 and scraper 4 together form a sealing structure for the collection chamber, preventing gas leakage. Limiting element 11 presses the mounting plate 7 by rotation, ensuring system sealing. When it is necessary to clean impurities, rotating the limiting element 11 releases the mounting plate 7, and the mounting plate 7 can be removed through slot 6 to clean the impurities in the collection chamber. Both ends of filter duct 2 are threadedly connected to ventilation duct 1 via rotatable connecting nuts, facilitating disassembly and maintenance.
[0029] Furthermore, it should be noted that, in the description of this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0030] The above description is the preferred embodiment of this utility model. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the protection scope of this utility model.
Claims
1. An anti-blocking device for the ventilation and oxygen dissolution structure of a fermentation equipment, comprising a ventilation pipeline (1), characterized in that: A filter pipe (2) is provided at the middle position of the ventilation duct (1). Filter balls (3) are provided inside the filter pipe (2), and a scraper (4) is provided on one side of the filter balls (3) and is arranged in a manner that fits the surface of the filter balls (3).
2. The anti-blocking device for the ventilation and oxygen dissolution structure of a fermentation device according to claim 1, characterized in that: A guide plate (5) for guiding the gas is provided inside the filter pipe (2), and the guide plate (5) is obliquely arranged on the other side of the filter balls (3).
3. The anti-blocking device for the ventilation and oxygen dissolution structure of a fermentation device according to claim 2, wherein: A slot (6) is provided on the filter pipe (2) above the scraper (4), and a mounting plate (7) connected to the scraper (4) is provided at the slot (6).
4. The anti-blocking device for the ventilation and oxygen dissolution structure of a fermentation device according to claim 3, characterized in that: A limiting slot (8) is provided at the bottom of the slot (6). A limiting hole that fits the inner side wall of the limiting slot (8) is provided at the bottom of the mounting plate (7), and a limiting block (9) is located inside the limiting slot (8).
5. The anti-blocking device for the ventilation and oxygen dissolution structure of a fermentation device according to claim 4, wherein: A collection cavity is formed by the cooperation among the mounting plate (7), the scraper (4) and the filter balls (3).
6. The anti-blocking device for the ventilation and oxygen dissolution structure of a fermentation device according to claim 5, wherein: Limiting rods (10) are provided on both sides of the filter balls (3), and the limiting rods (10) are rotatably arranged on the inner side wall of the filter pipe (2).
7. The anti-blocking device for the ventilation and oxygen dissolution structure of a fermentation device according to claim 6, characterized in that: A limiting member (11) for fixing the mounting plate (7) is provided above the mounting plate (7).
8. The anti-blocking device for the ventilation and oxygen dissolution structure of a fermentation device according to claim 7, characterized in that: Connectors (12) for connecting with the ventilation duct (1) are provided at both ends of the filter pipe (2).