Cyclone filter of bacteria-containing air filtering process system

Abstract

The utility model discloses a cyclone filter of a bacteria-containing air filtration process system, which is provided with a first slot and a second slot which are used for placing fiber filter paper, and the first slot and the second slot are respectively and detachably provided with a placing rack; when the fiber filter paper in a certain inserting groove is replaced, new fiber filter paper is placed in the inserting groove in the other side, then old fiber filter paper is replaced, and therefore the effect of replacing the fiber filter paper without shutdown is achieved.

Description

Technical Field

[0001] The utility model relates to the fields of biological fermentation and pharmaceutical chemical industry, and in particular to a cyclone filter of a bacteria-containing air filtering process system. Background Art

[0002] In traditional aerobic microbial fermentation, the required oxygen is usually obtained from the air. However, the air contains a large number of bacteria, which can enter the fermentation system with the air, multiply under suitable conditions, and compete with the production bacteria in the fermentation process for nutrients. This will produce unwanted metabolites and interfere with or even destroy the normal fermentation process, sometimes causing the entire fermentation batch to fail.

[0003] To prevent this, air sterilization is a key step in fermentation production. The air sterilization methods currently used in industry include radiation sterilization, chemical sterilization, electrostatic dust removal, thermal sterilization and filtration sterilization. Each of these methods has its own disadvantages:

[0004] Radiation sterilization: Affected by moisture and dust in the air, the penetration of ultraviolet rays is weakened, resulting in general sterilization effect.

[0005] Chemical sterilization: less used in industry;

[0006] Thermal sterilization: related to temperature, high sterilization efficiency at high temperature, but not suitable for widespread use in industry because high temperature may affect equipment and product quality;

[0007] Filtration sterilization method: The main filtration equipment used usually needs to replace its filtration components after working for a period of time. The waiting time is relatively long, which can easily lead to production interruptions.

[0008] Therefore, the main problem in the prior art is how to provide a device that can effectively remove foreign bacteria without interfering with the fermentation process, while ensuring the continuity of operation and production efficiency. Summary of the invention

[0009] In order to solve the above problems, the utility model discloses a cyclone filter of a bacteria-containing air filtration process system.

[0010] In order to achieve the above objectives, the present application also provides a cyclone filter for a bacteria-containing air filtration process system, the cyclone filter comprising an outer shell, an upper flower plate and a lower flower plate are arranged in the outer shell, a first slot and a second slot for placing fiber filter paper are formed at the upper flower plate and the lower flower plate, a placement rack is detachably arranged in the first slot and the second slot, and a placement groove is arranged on the placement rack to match the fiber filter paper.

[0011] In the above solution, the outer edge of the placement rack is provided with a sealing edge which is matched with the side edge of the outer shell.

[0012] In the above scheme, the middle part of the fiber filter paper protrudes upward to form a conical top.

[0013] In the above solution, the fiber filter paper has annular grooves on its four edges.

[0014] In the above solution, a plurality of supporting ribs are arranged at the lower end of the fiber filter paper corresponding to the annular groove.

[0015] In the above scheme, the placement groove is an annular groove that matches the annular groove, and the middle part of the placement rack is a conical top that is consistent with the fiber filter paper.

[0016] Compared with the prior art, the utility model has the following advantages: in the filter of the present application, a first slot and a second slot for placing fiber filter paper are provided, and a placement rack is detachably provided in the first slot and the second slot; when replacing the fiber filter paper in a certain slot, a new fiber filter paper can be placed through the slot on the other side and then the old fiber filter paper can be replaced, thereby achieving the effect of replacing the fiber filter paper without stopping the machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of the bacteria-containing air filtration process system in the embodiment of the present application;

[0018] Figure 2 A three-dimensional diagram of a cyclone filter in an embodiment of the present application;

[0019] Figure 3 This is a schematic diagram of the internal structure of a cyclone filter in an embodiment of the present application;

[0020] Figure 4 A three-dimensional diagram of the fiber filter paper in the embodiment of the present application;

[0021] Figure 5 A cross-sectional view of the fiber filter paper in the embodiment of the present application;

[0022] Figure 6 This is a schematic diagram of the structure of the placement rack in the embodiment of the present application;

[0023] Figure 7 This is a schematic diagram of the position of the support ribs on the bottom surface of the fiber filter paper in the embodiment of the present application. DETAILED DESCRIPTION

[0024] The present invention is further explained below in conjunction with specific embodiments. It should be understood that the following specific embodiments are only used to illustrate the present invention and are not used to limit the scope of the present invention. It should be noted that the words "front", "rear", "left", "right", "up" and "down" used in the following description refer to directions in the accompanying drawings, and the words "inside" and "outside" refer to directions toward or away from the geometric center of a specific component, respectively.

[0025] Example 1: See Figure 1 A bacterial air filtration process system comprises a coarse filter 100, an air compressor 200, an air cooler 300, a water separator 400, an air storage tank 500, a cyclone separator 600, a wire mesh demister 700 and an air heater 800 which are connected in sequence. The inlet end of the coarse filter 100 is connected to a high-altitude air collection port 101, and high-altitude gas is sucked in through the high-altitude air collection port 101. Since the amount of bacteria contained in the air inlet close to the ground is more than that in the air high from the ground, the air suction port is set at a high place in the factory, which can reduce the bacterial content of the inhaled air;

[0026] The outlet end of the air heater 800 is connected to the inlet end of the cyclone filter 900, the outlet end of the cyclone filter 900 is connected to the absolute membrane filter 1000, the outlet end of the absolute membrane filter 1000 is connected to the gas end, and the fiber filter paper 904 of the cyclone filter 900 is a deep polymer fiber filter paper; each device in this embodiment can adopt existing devices, specifically:

[0027] The coarse filter 100 installed at the inlet of the air compressor 200 mainly intercepts dust with larger particle sizes in the air, protects the air compressor, and removes bacteria at the same time, which can reduce the load of the total filter; the air compressor 200 specifically adopts an oil-free lubrication compressor to reduce oil mist pollution in the compressed air;

[0028] Since the outlet temperature of the air compressor 200 is high, an air cooler 300 is provided at the outlet thereof to reduce the temperature of the air by using a heat pipe heat exchanger and remove part of the lubricating oil at the same time;

[0029] The water separator 400 is used to remove moisture from the air;

[0030] The cyclone separator 600 is used to remove droplets larger than 20um in the air;

[0031] The wire mesh demister 700 is used to remove droplets larger than 1um in the air;

[0032] The air heater 800 uses a steam heater to heat the air to about 50° C., so that the relative humidity of the air is lower than 60%, and then the air enters the cyclone filter 900 to ensure that the cyclone filter 900 remains dry;

[0033] The cyclone filter 900 is used as the main filter. The deep polymer fiber filter paper in the cyclone filter 900 has the characteristics of high sterilization efficiency;

[0034] The absolute membrane filter 1000 is used as a sub-filter. The pores of its own filter medium are smaller than those of cells and spores. It is used to filter bacteria with larger pores, further retaining microorganisms on one side of the medium, thereby improving the sterilization effect;

[0035] Example 2: See Figure 2-7 , a cyclone filter of a bacteria-containing air filtration process system, the cyclone filter 900 includes an outer shell 901, an upper plate 902 and a lower plate 903 are arranged in the outer shell 901, a first slot 905 and a second slot 906 for placing a fiber filter paper 904 are formed at the upper plate 902 and the lower plate 903, a placement rack 907 is detachably arranged in the first slot 905 and the second slot 906, and a placement groove that matches the fiber filter paper 904 is arranged on the placement rack 907; a plurality of holes are evenly opened on the surface of the upper plate 902 and the lower plate 903 for air to pass through, which are used to support the placement rack 907, and the placement rack 907 is used to carry the fiber filter paper 904, and a plurality of holes are also opened on the surface of the upper plate 902 and the lower plate 903, and the air filtered by the fiber filter paper 904 enters the lower plate 903 from the placement rack 907, and enters the lower end outlet of the outer shell 901 from the lower plate 903;

[0036] In a possible embodiment, the placement rack 907 is detachably connected to the outer shell 901 by bolts; in the working state, the fiber filter paper 904 is placed in one of the first slot 905 and the second slot 906, and the other is in an empty state. When the fiber filter paper 904 needs to be replaced, the placement rack 907 in the empty slot is first taken out, and a new fiber filter paper 904 is installed on the placement rack 907, and then it is inserted into the slot and fixed to the outer shell 901 by bolts, and then the placement rack 907 corresponding to the old fiber filter paper 904 is removed, and the old fiber filter paper 904 on the placement rack 907 is taken out, and then the empty placement rack 907 is reinserted into the corresponding slot to replace the old and new fiber filter papers 904. During the whole process, there is always fiber filter paper 904 in the outer shell 901, so that the effect of replacing the fiber filter paper without stopping the machine can be achieved, saving the downtime waiting time for replacing the fiber filter paper 904 in the system; the fiber filter paper 904 in this embodiment adopts existing materials, such as polyurethane fiber filter paper.

[0037] The outer edge of the placement rack 907 is provided with a sealing edge 971 that is relatively matched with the side edge of the outer shell 901. When the placement rack 907 is inserted into the corresponding slot, the sealing edge 971 can be pressed against the outer shell 901 to improve the sealing effect of the two. At the same time, a rubber sealing strip can be set between the two to further improve the sealing effect.

[0038] In a possible implementation, the middle portion of the fiber filter paper 904 is convex upward to form a conical top, so that it has a certain slope from the middle to the surroundings, which can reduce the accumulation of large floating dust in the air in the middle of the fiber filter paper 904 and affect its filtering effect;

[0039] In addition, a circle of annular grooves 941 are provided around the edges of the fiber filter paper 904 , and the annular grooves 941 can be used to accommodate some floating dust and play a role in dust collection.

[0040] A plurality of supporting ribs 942 are provided at the lower end of the fiber filter paper 904 corresponding to the annular groove 941. The supporting ribs 942 may be made of steel material to play a supporting role and reduce the possibility of deformation.

[0041] The placement groove is an annular groove that matches the annular groove 941. The middle part of the placement rack 907 is a conical top that is consistent with the fiber filter paper 904. During specific installation, the middle part of the fiber filter paper 904 is placed in the middle of the placement rack 907, and the annular groove 941 is placed in the placement groove to play a positioning role.

[0042] The technical means disclosed in the solution of the utility model are not limited to the technical means disclosed in the above-mentioned implementation mode, but also include technical solutions composed of any combination of the above technical features. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the principle of the utility model, and these improvements and modifications are also regarded as the protection scope of the utility model.

Claims

1. A cyclone filter for a bacteria-containing air filtration process system, characterized in that: The cyclone filter (900) comprises an outer shell (901), wherein an upper plate (902) and a lower plate (903) are arranged in the outer shell (901), wherein a first slot (905) and a second slot (906) for placing a fiber filter paper (904) are formed at the upper plate (902) and the lower plate (903), wherein a placement rack (907) is detachably arranged in the first slot (905) and the second slot (906), wherein the placement rack (907) is provided with a placement groove that is aligned with the fiber filter paper (904).

2. A cyclone filter for a bacteria-containing air filtration process system according to claim 1, characterized in that: The outer edge of the placement rack (907) is provided with a sealing edge (971) that is matched with the side edge of the outer shell (901).

3. The cyclone filter of the bacteria-containing air filtration process system according to claim 1, characterized in that: The middle portion of the fiber filter paper (904) bulges upward to form a conical top.

4. The cyclone filter of the bacteria-containing air filtration process system according to claim 3, characterized in that: The fiber filter paper (904) has an annular groove (941) on its four edges.

5. The cyclone filter of the bacteria-containing air filtration process system according to claim 4, characterized in that: A plurality of supporting ribs (942) are provided at the lower end of the fiber filter paper (904) corresponding to the annular groove (941).

6. The cyclone filter of the bacteria-containing air filtration process system according to claim 4, characterized in that: The placement groove is an annular groove that matches the annular groove (941), and the middle part of the placement rack (907) is a conical top that is consistent with the fiber filter paper (904).

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