Rotary ceramic membrane equipment for extracting fermentation liquor from fermentation tank

Abstract

The utility model discloses rotary ceramic membrane equipment for extracting fermentation liquor from a fermentation tank. The rotary ceramic membrane equipment comprises a fermentation tank assembly and a rotary ceramic membrane assembly, the fermentation tank assembly is provided with a tank body, and a rotary ceramic membrane mounting hole is formed in the tank body; in the rotary ceramic membrane assembly, a first temperature-resistant and pressure-resistant mechanical seal is arranged on a rotary ceramic membrane mounting hole of a tank body, a plurality of rotary ceramic membranes are positioned in an inner cavity of the tank body and are arranged on a rotary water production pipe at equal intervals, the rotary water production pipe vertically extends into the inner cavity of the tank body, and inner cavities of the plurality of rotary ceramic membranes are communicated with the rotary water production pipe; the fixed water production pipe is communicated with the rotary water production pipe through the buffer tank. The rotary ceramic membrane component is directly mounted in the fermentation tank component, so that the occupied area of equipment is saved, and the loss of feed liquid is reduced; the device is suitable for transforming existing fermentation process equipment, and is short in transformation period, convenient to disassemble and assemble, and convenient to overhaul and replace.

Description

Technical Field

[0001] This utility model specifically relates to a rotating ceramic membrane device for extracting fermentation liquid from a fermenter. Background Technology

[0002] In the production process of bio-fermentation broth, most fermentation broths are treated using traditional separation equipment such as plate and frame separators, vacuum drums, and centrifuges, or by flocculation sedimentation, heating, and isoelectric point precipitation. These methods can only achieve a rough separation of mycelia and solid impurities in the fermentation broth. The semi-finished or finished liquid may still contain a large amount of soluble bacteria, extraneous proteins, free antibodies, and inorganic ions. These substances pose difficulties for subsequent extraction and ion exchange processes, affecting extraction efficiency and the quality of the final product, and may even lead to broth contamination, resulting in product spoilage.

[0003] Rotary ceramic membrane separation technology has been successfully applied to the purification and refining process of fermentation broth, solving the problems of separation, purification and concentration in the industrial production of fermentation broth, while achieving the goals of energy saving, consumption reduction and clean production.

[0004] Rotary ceramic membrane equipment is a new type of membrane separation device that combines the technical principles of centrifuges and membrane equipment. The ceramic membrane used in this equipment is disc-shaped with several curved guide channels inside, and the membrane layer is coated on the outside.

[0005] The operating principle of a rotating ceramic membrane device is to stack several ceramic membrane sheets on a hollow shaft and place the entire device inside a pressure vessel. The rotating hollow shaft drives the membrane sheets to rotate at high speed, generating cross-flow that acts between the membrane surface and the material inside the vessel, thus achieving the filtration process.

[0006] As a high-precision filtration and separation device, the axial-flow rotary ceramic membrane filter organically combines the technical features of centrifuges and membrane filtration. It not only has nanometer-level filtration precision, but also achieves stable filtration performance and energy-saving effect.

[0007] Compared to tubular ceramic membranes, rotating ceramic membranes resist fouling through the high-speed rotation of the membrane assembly, rather than relying on a high-flow-rate circulating pump to flush the membrane surface. The high shear force generated on the membrane surface creates a swirling sweep, which effectively removes the filter cake layer from the membrane surface over a long period, achieving efficient cleaning of the membrane surface and maintaining a high flux. This makes it suitable for the concentration and separation of materials with high concentration, high viscosity, and high solids content.

[0008] However, existing rotating ceramic membrane (RCM) systems related to bio-fermentation have the following problems: First, the fermenter assembly and the RCM unit operate in series, resulting in a large footprint. Second, the numerous pipes between the fermenter assembly and the RCM unit lead to significant feed loss. These problems need to be addressed through technological innovation and equipment optimization to improve overall production efficiency and economic benefits. Utility Model Content

[0009] The purpose of this invention is to provide a rotating ceramic membrane device for extracting fermentation liquid from a fermenter.

[0010] The technical solution of this utility model is as follows:

[0011] A rotating ceramic membrane extraction device for fermentation broth from a fermenter includes a fermenter assembly and a rotating ceramic membrane assembly.

[0012] A fermenter assembly has a tank body with a rotating ceramic membrane mounting hole.

[0013] The rotating ceramic membrane assembly includes a first motor, a first reducer, a buffer tank, a fixed water production pipe, a first temperature- and pressure-resistant mechanical seal, a rotating water production pipe, and a plurality of rotating ceramic membranes. The first temperature- and pressure-resistant mechanical seal is installed on the rotating ceramic membrane mounting hole in the tank body. The plurality of rotating ceramic membranes are located in the inner cavity of the tank body and are equally spaced on the rotating water production pipe. The rotating water production pipe extends vertically into the inner cavity of the tank body. The inner cavities of the plurality of rotating ceramic membranes are connected to the rotating water production pipe. The first motor is driven and connected to the rotating water production pipe through the first reducer and the first temperature- and pressure-resistant mechanical seal. The fixed water production pipe is connected to the rotating water production pipe through the buffer tank.

[0014] In a preferred embodiment of the present invention, the fermenter assembly further includes a second motor, a second reducer, a second temperature- and pressure-resistant mechanical seal, a rotating stirring rod, and several stirring blades. The second temperature- and pressure-resistant mechanical seal is installed on the top of the tank body. The second motor drives the rotating stirring rod through the second reducer and the second temperature- and pressure-resistant mechanical seal. The rotating stirring rod extends into the inner cavity of the tank body, and its upper end is connected to the second reducer. Several stirring blades are installed on the lower part of the rotating stirring rod.

[0015] More preferably, a stirring base is provided at the bottom of the inner cavity of the tank, and the lower end of the rotating stirring rod is provided on the stirring base, so that the rotating stirring rod is vertically arranged in the inner cavity of the tank.

[0016] More preferably, the lowest rotating ceramic diaphragm is located above the plurality of stirring blades.

[0017] In a preferred embodiment of this utility model, a level gauge is provided on the side wall of the tank.

[0018] In a preferred embodiment of this utility model, the tank body is provided with a manhole.

[0019] In a preferred embodiment of this utility model, the lower end of the tank is provided with several supports.

[0020] The beneficial effects of this utility model are:

[0021] 1. This utility model directly installs the rotating ceramic membrane assembly in the fermentation tank assembly, saving equipment floor space and reducing material loss.

[0022] 2. This utility model is applicable to the modification of existing fermentation process equipment, and the modification cycle is short.

[0023] 3. This utility model is easy to disassemble and assemble, and convenient for inspection and replacement. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the structure of this utility model. Detailed Implementation

[0025] The technical solution of this utility model will be further explained and described below with reference to specific embodiments and accompanying drawings.

[0026] like Figure 1 As shown, a rotary ceramic membrane extraction device for fermentation broth from a fermenter includes a fermenter assembly 2 and a rotary ceramic membrane assembly 1.

[0027] The fermenter assembly 2 includes a tank body 20, which has a rotating ceramic membrane mounting hole 201 and a manhole 202. A level gauge 203 is installed on the side wall of the tank body 20, and several supports 204 are provided at the lower end of the tank body 20. It also includes a second motor 21, a second reducer 22, a second temperature- and pressure-resistant mechanical seal 23, a rotating stirring rod 24, and several stirring blades 25. The second temperature- and pressure-resistant mechanical seal 23 is installed on the top of the tank body 20, and the second motor 21 is powered by... The rotating stirring rod 24 is driven by the second reducer 22 and the second temperature and pressure resistant mechanical seal 23. The rotating stirring rod 24 extends into the inner cavity of the tank 20, and its upper end is connected to the second reducer 22. Several stirring blades 25 are installed on the lower part of the rotating stirring rod 24. A stirring base 205 is provided at the bottom of the inner cavity of the tank 20, and the lower end of the rotating stirring rod 24 is provided on the stirring base 205, so that the rotating stirring rod 24 is vertically arranged in the inner cavity of the tank 20.

[0028] The rotating ceramic membrane assembly 1 includes a first motor 11, a first reducer 12, a buffer tank 13, a fixed water production pipe 14, a first temperature- and pressure-resistant mechanical seal 15, a rotating water production pipe 16, and a plurality of rotating ceramic membranes 17. The first temperature- and pressure-resistant mechanical seal 15 is installed on the rotating ceramic membrane mounting hole 201 of the tank body 20. The plurality of rotating ceramic membranes 17 are located in the inner cavity of the tank body 20 and are equally spaced on the rotating water production pipe 16. The rotating water production pipe 16 extends vertically into the inner cavity of the tank body 20. The inner cavities of the plurality of rotating ceramic membranes 17 are connected to the rotating water production pipe 16, and the lowermost rotating ceramic membrane 17 is located above the plurality of stirring blades 25. The first motor 11 is driven and connected to the rotating water production pipe 16 through the first reducer 12, the buffer tank 13, and the first temperature- and pressure-resistant mechanical seal 15. The fixed water production pipe 14 is connected to the rotating water production pipe 16 through the buffer tank 13.

[0029] When fermentation of fermentation tank assembly 2 is complete and fermentation broth extraction is required, the first motor 11 is turned on. The first motor 11 transmits power to the rotating water production pipe 16 through the first reducer 12, causing several rotating ceramic membranes 17 on the rotating water production pipe 16 to rotate at high speed. Under negative pressure, the liquid in fermentation tank assembly 2 enters the rotating water production pipe 16 through the pores of the rotating ceramic membranes 17, then enters the fixed water production pipe 14 through the buffer tank 13, and is pumped to the next process by the water production pump. When the rotating ceramic membrane assembly 1 needs maintenance or replacement, the rotating ceramic membrane mounting hole 201 is opened, and the rotating ceramic membrane assembly 1 can be completely disassembled for maintenance.

[0030] The above description is only a preferred embodiment of the present utility model, and therefore cannot be used to limit the scope of the present utility model. All equivalent changes and modifications made in accordance with the scope of the present utility model patent and the contents of the specification should still fall within the scope of the present utility model.

Claims

1. A rotating ceramic membrane apparatus for extracting a fermentation broth from a fermenter, characterized by: The fermentation tank assembly and the rotary ceramic membrane assembly are combined to form a fermentation device. The fermentation tank assembly has a tank body with a rotary ceramic membrane mounting hole. The rotary ceramic membrane assembly includes a first motor, a first speed reducer, a buffer tank, a fixed water production pipe, a first temperature-resistant and pressure-resistant mechanical seal, a rotary water production pipe and a plurality of rotary ceramic membrane sheets.

2. A rotating ceramic membrane apparatus for extracting fermentation broth from a fermenter as claimed in claim 1, wherein: The first temperature-resistant and pressure-resistant mechanical seal is mounted on the rotary ceramic membrane mounting hole of the tank body.

3. A rotating ceramic membrane apparatus for extracting fermentation broth from a fermenter as claimed in claim 2, wherein: The plurality of rotary ceramic membrane sheets are located in the inner cavity of the tank body and are mounted on the rotary water production pipe at equal intervals.

4. A rotating ceramic membrane device for extracting fermentation broth from a fermenter as claimed in claim 2, wherein: The rotary water production pipe vertically extends into the inner cavity of the tank body.

5. A rotating ceramic membrane device for extracting a fermentation broth from a fermenter according to any one of claims 1 to 4, characterized in that: The inner cavities of the plurality of rotary ceramic membrane sheets are connected to the rotary water production pipe.

6. A rotating ceramic membrane device for extracting a fermentation broth from a fermenter according to any one of claims 1 to 4, characterized in that: The first motor is connected to the rotary water production pipe through the first speed reducer and the first temperature-resistant and pressure-resistant mechanical seal.

7. A rotating ceramic membrane device for extracting a fermentation broth from a fermenter according to any one of claims 1 to 4, characterized in that: The fixed water production pipe is connected to the rotary water production pipe through the buffer tank. The fermentation tank assembly further includes a second motor, a second speed reducer, a second temperature-resistant and pressure-resistant mechanical seal, a rotary stirring vertical rod and a plurality of stirring blades. The second temperature-resistant and pressure-resistant mechanical seal is mounted on the top of the tank body. The second motor is connected to the rotary stirring vertical rod through the second speed reducer and the second temperature-resistant and pressure-resistant mechanical seal. The rotary stirring vertical rod extends into the inner cavity of the tank body with its upper end connected to the second speed reducer. The plurality of stirring blades are mounted on the lower part of the rotary stirring vertical rod. The bottom of the inner cavity of the tank body is provided with a stirring base. The lower end of the rotary stirring vertical rod is located on the stirring base so that the rotary stirring vertical rod is vertically arranged in the inner cavity of the tank body. The lowest rotary ceramic membrane sheet is located above the plurality of stirring blades. A liquid level meter is arranged on the side wall of the tank body. A manhole is arranged on the tank body. A plurality of supports are arranged on the lower end of the tank body.

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