Rapid graded filtering device for fermentation liquor

Abstract

The utility model discloses a quick graded filtering device for fermentation liquor, which belongs to the technical field of fermentation liquor filtering and comprises a stock solution tank, the bottom of the stock solution tank is connected with one end of a first liquid guide pipe, the other end of the first liquid guide pipe is connected with the input end of a graded filtering module, and a feeding pump and a first feeding valve are arranged on the first liquid guide pipe. The output end of the grading filtering module is connected with one end of the second liquid guide pipe, and the other end of the second liquid guide pipe is connected with the sterile liquid storage tank; when the device starts to work, a first feeding valve and a feeding pump are opened, fermentation liquor in a stock solution tank is introduced into a grading filtering module through a first liquid guide pipe, and the fermentation liquor subjected to grading filtering through the grading filtering module enters a sterile liquid storage tank to be stored through a second liquid guide pipe; the device can effectively overcome the defects of low efficiency, poor separation effect, easiness in blockage of a filter membrane, time and labor waste and the like through methods of graded filtration, cross-flow filtration and the like, does not need to be matched with a centrifugal machine, treats in one step, and lays a foundation for producing sterile products.

Description

Technical Field

[0001] The utility model relates to the technical field of fermentation liquid filtration, in particular to a fermentation liquid rapid classification filtration device. Background Art

[0002] The current fermentation liquid filtering device and filtering method have the following shortcomings:

[0003] 1. The traditional method of filtering fermentation broth is centrifugal filtration, which has low efficiency, poor separation effect, and is time-consuming and labor-intensive.

[0004] 2. In order to achieve a better separation effect for the fermentation broth, the centrifuge will be equipped with a membrane filtration system after centrifugation. Although this method can improve the separation effect, it still cannot solve the problems of low efficiency, time-consuming and labor-intensive. In addition, traditional membrane filtration has the disadvantages of easy clogging of the filter membrane and slow filtration speed, and requires frequent disassembly and cleaning. Frequent disassembly and cleaning will accelerate the service life of the filter membrane, further reduce the filtration efficiency, and increase manpower and material resources.

[0005] Therefore, it is necessary to provide a fermentation liquid rapid classification and filtration device that can solve the above problems. Utility Model Content

[0006] Purpose of the utility model: A fermentation liquid rapid classification and filtration device to solve the above-mentioned problems existing in the prior art.

[0007] In order to solve the above technical problems, the utility model provides a fermentation liquid rapid graded filtration device, including a raw liquid tank, the bottom of the raw liquid tank is connected to one end of a first liquid guide tube, the other end of the first liquid guide tube is connected to the input end of a graded filtration module, a feed pump and a first feed valve are provided on the first liquid guide tube, the output end of the graded filtration module is connected to one end of a second liquid guide tube, and the other end of the second liquid guide tube is connected to a sterile liquid storage tank.

[0008] As a preferred embodiment, the graded filtration module includes a coarse filter arranged at the other end of the first liquid guiding tube, a stainless steel filter is arranged in the coarse filter, the coarse filter is connected to the raw liquid tank through an exhaust pipe, a first exhaust valve is arranged on the exhaust pipe, the coarse filter is connected to one end of the third liquid guiding tube, the other end of the third liquid guiding tube is connected to one end of the deep filter, the other end of the deep filter is connected to one end of the fourth liquid guiding tube, a second feed valve is arranged on the fourth liquid guiding tube, the fourth liquid guiding tube is connected to the microfiltration component, and the microfiltration component is connected to the sterilization filtration component through a pipeline.

[0009] As a preferred embodiment, the microfiltration component includes a microfilter connected to the fourth liquid conduit through a pipeline, a hollow fiber membrane is arranged in the microfilter, the microfilter is connected to the fifth liquid conduit through a pipeline, the microfilter is connected to a reflux pipe through a pipeline, one end of the reflux pipe is connected to the raw liquid tank, a reflux valve is arranged on the reflux pipe, and the microfilter is backflushed through a backflushing unit.

[0010] As a preferred scheme, the first liquid conduit is connected to one end of the first sewage pipe, the fourth liquid conduit is connected to one end of the pure water conduit, the pure water conduit is provided with a barrier valve and a pure water valve, the coarse filter is connected to the first sewage pipe through the second sewage pipe, the fourth liquid conduit is connected to the first sewage pipe through the third sewage pipe, the first sewage pipe is provided with a first sewage valve, the second sewage pipe is provided with a second sewage valve, and the third sewage pipe is provided with a fourth sewage valve.

[0011] As a preferred embodiment, the sterilizing filtration component includes a sterilizing filter connected to the fifth liquid conduit through a pipeline, a sterilizing membrane is arranged inside the sterilizing filter, a third feed valve is arranged on the pipeline connecting the sterilizing filter and the fifth liquid conduit, and the sterilizing filter is connected to the sterile liquid storage tank through the second liquid conduit.

[0012] As a preferred embodiment, the backflush unit includes a backflush tube having one end connected to the fifth liquid guide tube, the other end of the backflush tube being connected to the pure water guide tube, and the connection point being located between the barrier valve and the pure water valve, and a backflush pump and a backflush valve are provided on the backflush tube.

[0013] As a preferred solution, the coarse filter is provided with a first pressure gauge, the sterilizing filter is provided with a second pressure gauge, and the fifth liquid guiding tube is provided with a third pressure gauge.

[0014] As a preferred solution, the sterile liquid storage tank is provided with a second exhaust pipe, and the second exhaust pipe is provided with a second exhaust valve and an air filter.

[0015] As a preferred solution, the stainless steel filter is a 100-mesh coarse filter, the pore size of the filter in the deep filter is 20 microns, and the pore size of the hollow fiber membrane is 0.18 microns.

[0016] As a preferred solution, the microfilter is provided in plurality.

[0017] Beneficial effects: The utility model relates to a rapid graded filtration device for fermentation liquid. When starting to work, the first feed valve and the feed pump are opened, and the fermentation liquid in the raw liquid tank is introduced into the graded filtration module through the first liquid conduit. The fermentation liquid after graded filtration in the graded filtration module enters the sterile liquid storage tank for storage through the second liquid conduit. The device can effectively solve the problems of low efficiency, poor separation effect, easy clogging of the filter membrane, and time-consuming and labor-intensive processes through graded filtration, cross-flow filtration and other methods, and does not require the use of a centrifuge. The process can be completed in one step, and sterile filtrate can be obtained, laying a foundation for the production of sterile products. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0019] The reference numerals in the figure are: raw liquid tank 1, first liquid guide pipe 2, feed pump 3, coarse filter 4, stainless steel filter 5, third liquid guide pipe 6, deep filter 7, first feed valve 8, fourth liquid guide pipe 9, second feed valve 10, microfilter 11, hollow fiber membrane 12, fifth liquid guide pipe 13, sterilizing filter 14, sterilizing membrane 15, second liquid guide pipe 16, sterile liquid storage tank 17, exhaust pipe 18, first exhaust valve 19, reflux pipe 20, Reflux valve 21, third feed valve 22, backflush pipe 23, backflush pump 24, backflush valve 25, first pressure gauge 26, third pressure gauge 27, second pressure gauge 28, second exhaust pipe 29, second exhaust valve 30, air filter 31, first drain pipe 32, first drain valve 33, second drain pipe 34, second drain valve 35, third drain valve 36, third drain pipe 37, barrier valve 38, pure water valve 39, pure water conduit 40. DETAILED DESCRIPTION

[0020] In the following description, a large number of specific details are given to provide a more thorough understanding of the utility model. However, it is obvious to those skilled in the art that the utility model can be implemented without one or more of these details. In other examples, in order to avoid confusion with the utility model, some technical features known in the art are not described.

[0021] The applicant has found through research that the existing fermentation liquid filtering devices have difficult-to-overcome problems such as low efficiency, poor separation effect, and time-consuming and labor-intensive.

[0022] To this end, the utility model provides a fermentation liquid rapid classification filtration device, please refer to Figure 1The device includes a raw liquid tank 1, the bottom of which is connected to one end of a first liquid conduit 2, the other end of which is connected to the input end of a graded filtration module, a feed pump 3 and a first feed valve 8 are provided on the first liquid conduit 2, the output end of the graded filtration module is connected to one end of a second liquid conduit 16, and the other end of the second liquid conduit 16 is connected to a sterile liquid storage tank 17; during specific implementation, the first feed valve 8 and the feed pump 3 are opened, and the fermentation liquid in the raw liquid tank 1 is introduced into the graded filtration module through the first liquid conduit 2, and the fermentation liquid after graded filtration of the graded filtration module enters the sterile liquid storage tank 17 through the second liquid conduit 16 for storage, laying a foundation for the production of sterile products.

[0023] Preferably, the graded filtration module includes a coarse filter 4 arranged at the other end of the first liquid conduit 2, a stainless steel filter screen 5 is arranged in the coarse filter 4, the coarse filter 4 is connected to the raw liquid tank 1 through an exhaust pipe 18, and a first exhaust valve 19 is arranged on the exhaust pipe 18, the coarse filter 4 is connected to one end of the third liquid conduit 6, the other end of the third liquid conduit 6 is connected to one end of the deep filter 7, the other end of the deep filter 7 is connected to one end of the fourth liquid conduit 9, the fourth liquid conduit 9 is provided with a second feed valve 10, and the fourth liquid conduit 9 is connected to the The microfiltration component is connected, and the microfiltration component is connected to the sterilization filtration component through a pipeline; in specific implementation, the fermentation liquid enters the coarse filter 4, passes through the stainless steel filter screen 5, and then enters the deep filter 7 from the third liquid conduit 6; the fermentation liquid passes through the filter screen in the deep filter 7 and then enters the microfiltration component from the fourth liquid conduit 9; the fermentation liquid passes through the microfiltration component and then enters the sterilization filtration component; after being filtered by the sterilization filtration component, it finally enters the sterile liquid storage tank 17 through the second liquid conduit 16 for storage.

[0024] Preferably, the microfiltration component includes a microfilter 11 connected to the fourth liquid conduit 9 through a pipeline, a hollow fiber membrane 12 is arranged in the microfilter 11, the microfilter 11 is connected to the fifth liquid conduit 13 through a pipeline, the microfilter 11 is connected to the reflux pipe 20 through a pipeline, one end of the reflux pipe 20 is connected to the raw liquid tank 1, a reflux valve 21 is arranged on the reflux pipe 20, and the microfilter 11 is backwashed through a backwash unit; during the filtration process, the circulating fermentation liquid will continuously flush the surface of the hollow fiber membrane 12 to avoid the accumulation of substances on the surface of the hollow fiber membrane 12 to form a blockage, thereby greatly increasing the processing capacity of the hollow fiber membrane 12 for the fermentation liquid, and when the hollow fiber membrane 12 is blocked, the hollow fiber membrane 12 can also be backwashed through the backwash unit, thereby avoiding the frequent disassembly and cleaning of the hollow fiber membrane 12.

[0025] Preferably, the first liquid guide pipe 2 is connected to one end of the first sewage pipe 32, the fourth liquid guide pipe 9 is connected to one end of the pure water guide pipe 40, the pure water guide pipe 40 is provided with a barrier valve 38 and a pure water valve 39, the coarse filter 4 is connected to the first sewage pipe 32 through the second sewage pipe 34, the fourth liquid guide pipe 9 is connected to the first sewage pipe 32 through the third sewage pipe 37, the first sewage pipe 32 is provided with a first sewage valve 33, the second sewage pipe 34 is provided with a second sewage valve 35, and the third sewage pipe 37 is provided with a third sewage valve 36; when the raw liquid tank 1 is During sewage discharge, the barrier valve 38, the pure water valve 39, the reflux valve 21 and the first sewage pipe 33 are opened, and the second feed valve 10 and the third sewage pipe 36 are closed, and pure water is introduced from the pure water conduit 40 to complete the sewage discharge of the raw liquid tank 1; when the coarse filter 4 and the deep filter 7 are discharged, the barrier valve 38, the pure water valve 39 and the second feed valve 10 are opened, and the third sewage valve 36 and the reflux valve 21 are tightly closed, and pure water is introduced from the pure water conduit 40 to complete the sewage discharge of the coarse filter 4 and the deep filter 7.

[0026] Furthermore, the sterilizing filtration component includes a sterilizing filter 14 connected to the fifth liquid conduit 13 through a pipeline, a sterilizing membrane 15 is arranged in the sterilizing filter 14, a third feed valve 22 is arranged on the pipeline connecting the sterilizing filter 14 and the fifth liquid conduit 13, and the sterilizing filter 14 is connected to the sterile liquid storage tank 17 through the second liquid conduit 16; in specific implementation, after the fermentation liquid is sterilized by the sterilizing membrane 15, it enters the sterile liquid storage tank 17 through the fifth liquid conduit 16 for storage.

[0027] Furthermore, the backflushing unit includes a backflushing pipe 23 having one end connected to the fifth liquid guide tube 16, and the other end of the backflushing pipe 23 is connected to the pure water guide tube 10, and the connection point is located between the barrier valve 38 and the pure water valve 39, and a backflushing pump 24 and a backflushing valve 25 are provided on the backflushing pipe 23; when performing the backflushing operation, the pure water valve 39, the backflushing valve 25 and the third drain valve 36 are opened, and the barrier valve 38, the reflux valve 21, the third feed valve 22 and the second feed valve 10 are tightly closed, and pure water is introduced from the pure water guide tube 40, so as to complete the backflushing operation of the hollow fiber membrane 12.

[0028] Furthermore, a first pressure gauge 26 is provided on the coarse filter 4, a second pressure gauge 28 is provided on the sterilizing filter 14, and a third pressure gauge 27 is provided on the fifth liquid guide tube 13; in specific implementation, in order to ensure the normal operation of the filtering work, it is necessary to keep the pressure in the coarse filter 4 between 0.05-0.1MPa, and ensure that the pressure in the sterilizing filter 14 is not higher than 0.2MPa. The pressures in the coarse filter 4 and the sterilizing filter 14 can be observed respectively by the first pressure gauge 26 and the second pressure gauge 28. In addition, the third pressure gauge 27 can be used to observe whether the backflushing work of the hollow fiber membrane 12 is proceeding smoothly.

[0029] Preferably, in order to avoid excessive pressure in the sterile liquid storage tank 17 , the sterile liquid storage tank 17 is provided with a second exhaust pipe 29 , and the second exhaust pipe 29 is provided with a second exhaust valve 30 and an air filter 31 .

[0030] Preferably, in order to achieve a better filtering effect, the stainless steel filter 5 is a 100-mesh coarse filter, the pore size of the filter in the deep filter 7 is 20 microns, and the pore size of the hollow fiber membrane 12 is 0.18 microns.

[0031] Preferably, since the pore size of the hollow fiber membrane 12 is relatively small and the membrane resistance is relatively large, in order to ensure the filtering efficiency, a plurality of microfilters 11 are provided.

[0032] The preferred embodiments of the present invention are described in detail above in conjunction with the accompanying drawings; however, the present invention is not limited to the specific details in the above embodiments. Within the technical concept of the present invention, various equivalent transformations can be made to the technical scheme of the present invention, and these equivalent transformations all belong to the protection scope of the present invention.

Claims

1. A fermentation liquid rapid classification and filtration device, characterized in that: include: Raw liquid tank; A first liquid guide tube, one end of which is connected to the bottom of the raw liquid tank; A feed pump, arranged on the first liquid guiding tube; A first feed valve, arranged on the first liquid guiding pipe; A graded filtration module, the input end of which is connected to the other end of the first liquid guiding tube; A second liquid conduit, one end of which is connected to the output end of the graded filtration module; A sterile liquid storage tank is connected to the other end of the second liquid guiding tube.

2. A fermentation liquid rapid classification filtration device according to claim 1, characterized in that: The hierarchical filtering module comprises: A coarse filter, arranged at the other end of the first liquid guiding tube; A stainless steel filter screen is arranged in the coarse filter; The coarse filter is connected to the raw liquid tank through an exhaust pipe, and the exhaust pipe is provided with a first exhaust valve; A third liquid guide tube, one end of which is connected to the coarse filter; A deep filter, one end of which is connected to the other end of the third liquid guiding tube; a fourth liquid guide tube, one end of which is connected to the other end of the depth filter; A second feed valve, arranged on the fourth liquid guiding pipe; A microfiltration component connected to the fourth liquid guiding tube; The sterilizing filtration component is connected to the microfiltration component through a pipeline.

3. A fermentation liquid rapid classification filtration device according to claim 2, characterized in that: The microfiltration component comprises: A microfilter connected to the fourth liquid guide tube through a pipeline; A hollow fiber membrane is disposed in the microfilter; a fifth liquid guide tube connected to the microfilter via a pipeline; A reflux pipe connected to the microfilter via a pipeline; a backflushing unit, used for backflushing the microfilter; A reflux valve is provided on the reflux pipe, and one end of the reflux pipe is connected to the raw liquid tank.

4. A fermentation liquid rapid classification and filtration device according to claim 3, characterized in that: A first sewage pipe, one end of which is connected to the first liquid guide pipe; A pure water conduit, one end of which is connected to the fourth liquid conduit; The pure water conduit is provided with a barrier valve and a pure water valve, the coarse filter is connected to the first sewage pipe through the second sewage pipe, the fourth liquid guide pipe is connected to the first sewage pipe through the third sewage pipe, the first sewage pipe is provided with a first sewage valve, the second sewage pipe is provided with a second sewage valve, and the third sewage pipe is provided with a fourth sewage valve; The backflush unit includes a backflush tube, a backflush pump and a backflush valve. One end of the backflush tube is connected to the fifth liquid guide tube, and the other end of the backflush tube is connected to the pure water guide tube. The connection point is located between the barrier valve and the pure water valve. The backflush tube is provided with a backflush pump and a backflush valve.

5. A fermentation liquid rapid classification and filtration device according to claim 3, characterized in that: The sterilizing filtration component comprises: a sterilizing filter connected to the fifth liquid guiding tube through a pipeline; A sterilizing membrane, disposed in the sterilizing filter; A third feed valve is provided on the pipeline that connects the sterilizing filter with the fifth liquid conduit, and the sterilizing filter is connected with the sterile liquid storage tank through the second liquid conduit.

6. A fermentation liquid rapid classification and filtration device according to claim 5, characterized in that: The coarse filter is provided with a first pressure gauge, the sterilizing filter is provided with a second pressure gauge, and the fifth liquid guide tube is provided with a third pressure gauge.

7. A fermentation liquid rapid classification and filtration device according to claim 5, characterized in that: The sterile liquid storage tank is provided with a second exhaust pipe, and the second exhaust pipe is provided with a second exhaust valve and an air filter.

8. The fermentation liquid rapid classification and filtration device according to claim 3, characterized in that: The stainless steel filter is a 100-mesh coarse filter, the pore size of the filter in the deep filter is 20 microns, and the pore size of the hollow fiber membrane is 0.18 microns.

9. A fermentation liquid rapid classification and filtration device according to claim 3, characterized in that: The microfilter is provided in plurality.

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