Microbial fermentation liquor filtering device

Abstract

The utility model discloses a microbial fermentation liquor filtering device which comprises a filtering bin, a motor fixed at the top of the filtering bin, a rotating screen in transmission connection with the motor and a filtering assembly arranged below the rotating screen, and the rotating screen is configured to be in a big-end-up shape; the filtering assembly is configured to be in a circular truncated cone shape or a circular arc shape and is in transmission connection with the motor through a rotating shaft; the filtering assembly is arranged outside the rotating screen in a surrounding mode, and a preset distance is formed between the filtering assembly and the outer surface of the rotating screen. According to the microbial fermentation liquor filtering device provided by the utility model, the circular-truncated-cone-shaped or circular-arc-shaped filtering assembly matched with the rotating sieve is arranged, so that the filtering area of the filtering assembly can be increased, and the filtering efficiency is improved; fermentation liquor can be uniformly distributed on the surface of the filter assembly, so that local blockage of the filter assembly is avoided; the filtering assembly is in transmission connection with the motor, so that the filtering assembly can realize active filtering through rotation, and the filtering efficiency is greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of microbial fermentation equipment, and more specifically, to a microbial fermentation liquid filtering device. Background Art

[0002] Fermentation broth contains a large amount of impurities such as bacteria and cell debris, which can affect the quality and purity of subsequent products. Therefore, it is necessary to remove these impurities to improve product stability and shelf life, and to meet production process and quality standards. Microbial fermentation broth filtration devices are typically connected to a fermentation unit, such as a fermenter. After fermentation is complete, the fermentation broth can be directly transferred to the filtration unit by gravity or pumping for filtration.

[0003] The utility model patent with patent application number CN217988638U discloses a filtering device for microbial fermentation liquid, including a liquid inlet pipe, a support ring, a support rod, a bottom ring, a filter chamber, an auxiliary screening component, a shrink ring and a mobile filtering component.

[0004] This device features a removable bottom plate to facilitate filter replacement, facilitate regular maintenance by staff, improve work efficiency, and minimize impact on production. However, the filter area of ​​this device is limited by the cross-sectional area of ​​the filter chamber, and the filter relies primarily on gravity for passive filtration of the fermentation liquid, resulting in relatively low filtration efficiency. Due to the presence of an auxiliary screening component, most of the fermentation liquid flows along the side walls of the filter chamber toward the filter, increasing filtration pressure at the filter edge and causing clogging. Utility Model Content

[0005] An object of the present invention is to solve the above-mentioned problems and / or disadvantages and to provide advantages as will be described below.

[0006] In order to achieve these purposes and other advantages of the utility model, a microbial fermentation liquid filtering device is provided, comprising: a filtering chamber, a support frame for supporting the filtering chamber, a motor fixed to the top of the filtering chamber, a rotating screen arranged in the filtering chamber and connected to the motor through a rotating shaft, a filtering assembly arranged below the rotating screen, the filter holes of the rotating screen having a larger aperture than the filter holes of the filtering assembly, a liquid inlet pipe cooperating with the rotating screen being arranged at the top of the filtering chamber, a liquid outlet pipe being arranged at the bottom of the filtering chamber, an opening being arranged at the upper end of the rotating screen, and the opening being cooperating with the liquid inlet pipe, and the rotating screen being configured in a shape of being larger at the top and smaller at the bottom;

[0007] The filter assembly is configured in a truncated cone shape or an arc shape, and is connected to the motor through a rotating shaft;

[0008] The filter assembly is arranged outside the rotating screen in an enclosed manner, and a predetermined distance is maintained between the filter assembly and the outer surface of the rotating screen.

[0009] Preferably, the upper side of the rotating screen is provided with an annular liquid blocking ring to prevent the fermentation liquid from flowing out directly without being filtered by the rotating screen.

[0010] Preferably, the outer side of the filter bin is provided with a convex ring for supporting in cooperation with the support frame.

[0011] The lower end bottom plate of the filter bin is configured as a detachable bottom plate.

[0012] The bottom plate is provided with a sealing ring at the position close to the lower end of the filter bin.

[0013] Preferably, the bottom plate is configured as a funnel shape.

[0014] The liquid outlet pipe is arranged at the center position of the bottom plate.

[0015] The present application has at least the following beneficial effects: the circular truncated cone or circular arc shaped filter assembly cooperating with the rotating screen can increase the filtering area of the filter assembly and improve the filtering efficiency; the fermentation liquid filtered from the side of the rotating screen can directly fall into the filter assembly for filtering, ensuring that the fermentation liquid is distributed relatively uniformly on the surface of the filter assembly and avoiding local blockage of the filter assembly; the filter assembly is connected with the motor in transmission, so that the filter assembly can realize active filtering by rotating, greatly improving the filtering efficiency.

[0016] Other advantages, objects and features of the present application will be apparent from the following description, and will be understood by those skilled in the art. BRIEF DESCRIPTION OF DRAWINGS

[0017] Fig. 1 The structure diagram of the microbial fermentation liquid filtering device in an embodiment of the present application;

[0018] Fig. 2 The sectional view of the microbial fermentation liquid filtering device in an embodiment of the present application.

[0019] Marked in the figure: 1, filter bin, 11, liquid inlet pipe, 12, liquid outlet pipe, 13, convex ring, 2, support frame, 3, motor, 4, rotating shaft, 5, rotating screen, 51, annular liquid blocking ring, 6, filter assembly, 61, connecting piece, 7, bottom plate, 71, sealing ring. DETAILED DESCRIPTION

[0020] The present application will be further described in detail below with reference to the drawings, so that those skilled in the art can implement it according to the description.

[0021] It should be understood that the terms such as "have", "contain" and "include" used herein do not list the presence or addition of one or more other elements or combinations thereof.

[0022] It should be noted that in the description of this utility model, the orientations or positional relationships indicated by terms are based on the orientations or positional relationships shown in the accompanying drawings. This is intended solely to facilitate the description of this utility model and simplify the description. It does not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, it should not be construed as limiting this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] In the description of the present invention, unless otherwise clearly specified and limited, the terms "installed", "provided with", "mounted / connected", "connected", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection. It can be a mechanical connection or an electrical connection. It can be a direct connection or an indirect connection through an intermediate medium. It can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0024] In addition, in the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it can mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it can mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is higher in level than the second feature. When a first feature is "below," "below," or "below" a second feature, it can mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is lower in level than the second feature.

[0025] Example 1

[0026] A microbial fermentation liquid filtering device, the structure of which is as follows Figs. 1-2 As shown, it includes: a filter chamber 1, a support frame 2 for supporting the filter chamber 1, a motor 3 fixed to the top of the filter chamber 1, a rotating screen 5 arranged in the filter chamber 1 and connected to the motor 3 through a rotating shaft 4, and a filter assembly 6 arranged below the rotating screen 5. The filter hole diameter of the rotating screen 5 is larger than the filter hole diameter of the filter assembly 6. The top of the filter chamber 1 is provided with a liquid inlet pipe 11 that cooperates with the rotating screen 5, and the bottom of the filter chamber 1 is provided with a liquid outlet pipe 12. The upper end of the rotating screen 5 is provided with an opening, and the opening cooperates with the liquid inlet pipe 11. The rotating screen 5 is configured to be larger at the top and smaller at the bottom;

[0027] The filter assembly 6 is configured in a truncated cone or arc shape, and is connected to the motor 3 via a rotating shaft 4;

[0028] The filtering assembly 6 is arranged in a closed manner outside the rotating screen 5, and the filtering assembly 6 has a predetermined distance from the outer surface of the rotating screen 5.

[0029] In actual application, the rotating screen 5 and the filtering assembly 6 are both configured in a circular truncated cone shape; the upper end of the filtering assembly 6 is connected to the top of the filtering bin 1, so that the fermented liquid cannot flow out of the upper end of the filtering assembly 6, thereby avoiding the poor filtering effect; the rotating shaft 4 extends downward through the center of the rotating screen 5 and is detachably connected to the filtering assembly 6; and the bottom center of the filtering assembly 6 is clamped with the rotating shaft 4 through the setting of the connecting piece 61.

[0030] Working principle: when the filtering device works, the motor 3 is started to drive the rotating screen 5 to rotate, and then the fermented liquid is introduced into the rotating screen 5 in the filtering bin 1 through the liquid inlet pipe 11; the fermented liquid is rapidly subjected to primary filtering through the rotation of the rotating screen 5, the fermented liquid subjected to the primary filtering is uniformly sprayed to the filtering assembly 6 for secondary filtering, and finally the fermented liquid subjected to the secondary filtering is gathered at the bottom of the filtering bin 1 and is guided out of the filtering bin 1 through the liquid outlet pipe 12 for subsequent processing or collection. The filtering assembly 6 is connected with the motor 3 in transmission, so that the filtering assembly 6 rotates with the rotating shaft 4 during filtering, which can effectively improve the filtering efficiency of the filtering assembly 6 and further greatly improve the filtering efficiency of the whole device.

[0031] The circular truncated cone or arc-shaped filtering assembly 6 matched with the rotating screen 5 can increase the filtering area of the filtering assembly 6 and improve the filtering efficiency; meanwhile, the fermented liquid filtered from the side surface of the rotating screen 5 can directly fall into the filtering assembly 6 for filtering, so that the fermented liquid is relatively uniformly distributed on the surface of the filtering assembly 6 and local blocking of the filtering assembly 6 is avoided; the filtering assembly 6 is connected with the motor 3 in transmission, so that the filtering assembly 6 is actively filtered through rotation, which greatly improves the filtering efficiency; meanwhile, the filtering assembly 6 is arranged in a closed manner outside the rotating screen 5 and is connected with the motor 3 in transmission, so that the filtering efficiency is improved and the device height is compressed and the occupied space is reduced.

[0032] Embodiment 2

[0033] The embodiment 2 is a preferred embodiment of the utility model, and the specific structure is as shown in Figs. 1-2 The upper side edge of the rotating screen 5 is provided with an annular liquid blocking ring 51 to avoid the direct outflow of the fermented liquid without filtering through the rotating screen 5.

[0034] Working principle: the annular liquid blocking ring 51 is arranged to avoid the direct outflow of the fermented liquid without filtering through the rotating screen 5, thereby ensuring the stability of the filtering device.

[0035] Embodiment 3

[0036] The embodiment 3 is a preferred embodiment of the utility model, and the specific structure is as shown in the drawings Figs. 1-2 The filter bin 1 is provided with a convex ring 13 on the outer side, which cooperates with the support frame 2 to support and avoid the conflict between the support frame 2 and the bottom plate 7.

[0037] The bottom plate 7 at the lower end of the filter bin 1 is configured as a detachable bottom plate 7.

[0038] The bottom plate 7 is provided with a sealing ring 71 at the position close to the lower end of the filter bin 1, so as to ensure the sealing property of the device during work.

[0039] The bottom plate 7 is configured as a funnel shape.

[0040] The liquid outlet pipe 12 is arranged at the center position of the bottom plate 7.

[0041] In actual application, the outer edge of the bottom plate 7 is provided with a folded edge matched with the outer wall of the filter bin 1, and the inner side of the folded edge is provided with a screw thread matched with the lower end of the filter bin 1, so as to effectively improve the sealing property of the device during connection and fixation.

[0042] Working principle: the detachable bottom plate 7 is convenient for cleaning the filter bin 1, and convenient for disassembling, cleaning and replacing the rotating screen 5 and the filter assembly 6, so as to ensure the normal work of the device.

[0043] The above schemes are only a description of a preferred example, but are not limited thereto. In the implementation of the utility model, appropriate replacement and / or modification can be made according to the needs of the user.

[0044] The number of devices and the processing scale described herein are used to simplify the description of the utility model. The application, modification and change of the utility model are obvious to those skilled in the art.

[0045] Although the embodiments of the utility model have been disclosed as above, it is not limited to the application listed in the specification and the embodiments. It can be fully applied to various fields suitable for the utility model. Those skilled in the art can easily realize other modifications. Therefore, the utility model is not limited to specific details and drawings shown and described herein without departing from the general concept defined by the claims and the equivalent scope.

Claims

1. A microbial fermentation liquid filtering device comprising: A filter chamber, a support frame supporting the filter chamber, a motor fixed to the top of the filter chamber, a rotating screen arranged in the filter chamber and connected to the motor through a rotating shaft, a filter assembly arranged below the rotating screen, the filter holes of the rotating screen having a larger aperture than the filter holes of the filter assembly, a liquid inlet pipe cooperating with the rotating screen being arranged at the top of the filter chamber, a liquid outlet pipe being arranged at the bottom of the filter chamber, an opening being provided at the upper end of the rotating screen, and the opening being cooperating with the liquid inlet pipe, characterized in that the rotating screen is configured in a shape that is larger at the top and smaller at the bottom; The filter assembly is configured in a truncated cone shape or an arc shape, and is connected to the motor through a rotating shaft; The filter assembly is arranged outside the rotating screen in an enclosed manner, and a predetermined distance is maintained between the filter assembly and the outer surface of the rotating screen.

2. The microbial fermentation liquid filtration device according to claim 1, wherein The upper side edge of the rotating screen is provided with an annular liquid retaining ring to prevent the fermentation liquid from flowing out directly without being filtered by the rotating screen.

3. The microbial fermentation liquid filtration device according to claim 1, wherein The outer side of the filter bin is provided with a convex ring that cooperates with the support frame for support; The bottom plate at the lower end of the filter bin is configured as a detachable bottom plate; A sealing ring is provided at the position where the bottom plate and the lower end of the filter bin are in close contact.

4. The microbial fermentation liquid filtration device according to claim 3, wherein: The bottom plate is configured in a funnel shape; The liquid outlet pipe is arranged at the center of the bottom plate.

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