CN219848988U - Membrane filtration concentration device for itaconic acid - Google Patents
Membrane filtration concentration device for itaconic acid Download PDFInfo
- Publication number
- CN219848988U CN219848988U CN202321006111.4U CN202321006111U CN219848988U CN 219848988 U CN219848988 U CN 219848988U CN 202321006111 U CN202321006111 U CN 202321006111U CN 219848988 U CN219848988 U CN 219848988U
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- pipe
- membrane filter
- itaconic acid
- ceramic membrane
- infusion pump
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- LVHBHZANLOWSRM-UHFFFAOYSA-N methylenebutanedioic acid Natural products OC(=O)CC(=C)C(O)=O LVHBHZANLOWSRM-UHFFFAOYSA-N 0.000 title claims abstract description 44
- JAHNSTQSQJOJLO-UHFFFAOYSA-N 2-(3-fluorophenyl)-1h-imidazole Chemical compound FC1=CC=CC(C=2NC=CN=2)=C1 JAHNSTQSQJOJLO-UHFFFAOYSA-N 0.000 title claims abstract description 40
- 238000005374 membrane filtration Methods 0.000 title claims abstract description 22
- 239000012528 membrane Substances 0.000 claims abstract description 84
- 239000007788 liquid Substances 0.000 claims abstract description 59
- 239000000919 ceramic Substances 0.000 claims abstract description 53
- 239000010865 sewage Substances 0.000 claims abstract description 28
- 238000001802 infusion Methods 0.000 claims abstract description 22
- 238000001223 reverse osmosis Methods 0.000 claims abstract description 17
- 238000001728 nano-filtration Methods 0.000 claims abstract description 16
- 239000012141 concentrate Substances 0.000 claims description 21
- 238000012546 transfer Methods 0.000 claims description 2
- 238000007599 discharging Methods 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 15
- 230000008569 process Effects 0.000 abstract description 13
- 238000004140 cleaning Methods 0.000 abstract description 9
- 238000002360 preparation method Methods 0.000 abstract description 8
- 230000000694 effects Effects 0.000 abstract description 7
- 238000004519 manufacturing process Methods 0.000 abstract description 7
- 238000000855 fermentation Methods 0.000 description 11
- 230000004151 fermentation Effects 0.000 description 11
- 238000001914 filtration Methods 0.000 description 9
- 239000000243 solution Substances 0.000 description 6
- 230000007547 defect Effects 0.000 description 4
- 238000005406 washing Methods 0.000 description 4
- 238000002425 crystallisation Methods 0.000 description 3
- 230000008025 crystallization Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 230000004907 flux Effects 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 239000001124 (E)-prop-1-ene-1,2,3-tricarboxylic acid Substances 0.000 description 1
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229940091181 aconitic acid Drugs 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000011001 backwashing Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000012824 chemical production Methods 0.000 description 1
- 239000013064 chemical raw material Substances 0.000 description 1
- GTZCVFVGUGFEME-IWQZZHSRSA-N cis-aconitic acid Chemical compound OC(=O)C\C(C(O)=O)=C\C(O)=O GTZCVFVGUGFEME-IWQZZHSRSA-N 0.000 description 1
- 239000002537 cosmetic Substances 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 238000004042 decolorization Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 239000000706 filtrate Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000010437 gem Substances 0.000 description 1
- 238000009655 industrial fermentation Methods 0.000 description 1
- 229910001410 inorganic ion Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000409 membrane extraction Methods 0.000 description 1
- 239000011259 mixed solution Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 150000007524 organic acids Chemical class 0.000 description 1
- 102000004169 proteins and genes Human genes 0.000 description 1
- 108090000623 proteins and genes Proteins 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- GTZCVFVGUGFEME-UHFFFAOYSA-N trans-aconitic acid Natural products OC(=O)CC(C(O)=O)=CC(O)=O GTZCVFVGUGFEME-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Abstract
The utility model relates to the technical field of itaconic acid preparation, in particular to a membrane filtration concentration device for itaconic acid, which comprises a ceramic membrane filter, a nanofiltration membrane filter, a reverse osmosis membrane filter, a first infusion pump, a second infusion pump and a third infusion pump, wherein a sewage discharge three-way valve is arranged at the lower end of the ceramic membrane filter, a first liquid inlet pipe connected with the first infusion pump is arranged on the sewage discharge three-way valve, a first concentrated liquid pipe is connected with the upper end of the ceramic membrane filter, a first dialysate calandria is arranged on the ceramic membrane filter, and an external liquid access pipe and a control valve are also arranged on the first concentrated liquid pipe; compared with the existing technology, the device for extracting and preparing the itaconic acid has the advantages of obviously improved yield, simple technology, reduced production cost, excellent effect of extracting and preparing the itaconic acid, and quick and convenient whole cleaning process of the ceramic membrane, and no influence on continuous and efficient operation of the whole device.
Description
Technical Field
The utility model relates to the technical field of itaconic acid preparation, in particular to a membrane filtration concentration device for itaconic acid.
Background
Itaconic acid is an unsaturated binary organic acid, also called as methylene succinic acid, aconitic acid or methylene succinic acid, is an important organic chemical raw material, has active chemical properties and wide application fields due to the fact that the itaconic acid contains unsaturated double bonds, is an important raw material in chemical production and chemical synthesis industries, and is widely applied to industries such as medicines, chemical fibers, cosmetics, artificial precious stones and the like.
Most manufacturers adopt an industrial fermentation method to produce itaconic acid, and itaconic acid finished products are obtained by preparing itaconic acid fermentation liquor, filtering the fermentation liquor, evaporating, concentrating and crystallizing filtered itaconic acid filtrate. For example, the utility model patent of China patent No. 2009100177284 discloses a new process for once crystallizing itaconic acid by membrane extraction, which comprises the steps of material preparation, filter cloth filtration, active carbon decolorization, plate frame filtration, inorganic ceramic membrane filtration, plate heat exchanger cooling, organic nano membrane filtration, three-effect concentration pot concentration, cooling and crystallization in a crystallization tank, centrifugal drying and itaconic acid crystal preparation; the method for preparing the itaconic acid has the defects of complex process, high cost and low yield, and the defects of the whole preparation device are that more waste liquid is required to be discharged, so that the effective utilization of fermentation raw material liquid can not be realized. In addition, inorganic ceramic membrane filtration in the existing preparation device can intercept a large amount of mycelia when carrying out preliminary filtration on itaconic acid fermentation liquor, so that the whole production system needs to be frequently suspended to clean the ceramic membrane so as to ensure the filtration effect of the ceramic membrane on itaconic acid fermentation liquor, and the efficiency of the whole production system cannot be utilized to the maximum extent. Therefore, in order to overcome the defects of the itaconic acid production and preparation system in the prior art, the utility model provides a membrane filtration and concentration device for itaconic acid, and concentrated solution prepared by the device can be directly evaporated and crystallized to obtain an itaconic acid finished product.
Disclosure of Invention
The utility model aims to provide a membrane filtration concentration device for itaconic acid, which aims to solve the defects that the whole process is complex, the cost is high, the yield is low and the efficiency of the production system cannot be maximally utilized due to the fact that the production system in the existing itaconic acid preparation and extraction process cannot be realized.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the membrane filtration concentration device for itaconic acid comprises a ceramic membrane filter, a nanofiltration membrane filter, a reverse osmosis membrane filter, a first infusion pump, a second infusion pump and a third infusion pump, wherein a sewage three-way valve is arranged at the lower end of the ceramic membrane filter, a first liquid inlet pipe connected with the first infusion pump is arranged on the sewage three-way valve, a first concentrated liquid pipe is connected with the upper end of the ceramic membrane filter, a first dialysate drain pipe is arranged at the lower end of the ceramic membrane filter, and an external liquid access pipe and a control valve are also arranged on the first concentrated liquid pipe;
the second infusion pump is connected with a second liquid inlet pipe, two ends of the second liquid inlet pipe are respectively connected with the first dialysate discharge pipe and the lower end of the nanofiltration membrane filter, and the nanofiltration membrane filter is provided with a second concentrated liquid pipe and a second dialysate discharge pipe;
the lower extreme of reverse osmosis membrane filter is provided with the third feed liquor pipe that is connected with the third transfer pump, the tip of third feed liquor pipe is connected with the second dislysate calandria, be connected with the third dislysate calandria on the reverse osmosis membrane filter, and the third dislysate calandria is connected with the second concentrate pipe, the upper end of reverse osmosis membrane filter is connected with the third concentrate pipe.
As a further arrangement of the scheme, two ceramic membrane filters are arranged, a sewage discharge three-way valve is arranged at the lower end of each ceramic membrane filter, and the first liquid inlet pipe is connected with the two sewage discharge three-way valves.
As a further arrangement of the scheme, each sewage discharge three-way valve is connected with a sewage discharge pipe.
As a further arrangement of the scheme, an intermediate connecting pipe is arranged between the first concentrated liquid pipes on the two ceramic membrane filters, two liquid inlet three-way valves are arranged on the intermediate connecting pipe, and each liquid inlet three-way valve is connected with an external liquid access pipe.
As a further arrangement of the above, the control valve is arranged on the first concentrate pipe near the discharge end of the first concentrate pipe.
The beneficial effects are that:
1. when the process in the device is adopted to extract itaconic acid from itaconic acid fermentation liquid, the ceramic membrane filter can protect the flux and performance of the nanofiltration membrane filter, so that the flux of the nanofiltration membrane is kept stable; after the solution is filtered by a nanofiltration membrane, the viscosity of the dialysate is reduced, so that the itaconic acid is easier to concentrate and crystallize; in addition, after being concentrated by the reverse osmosis membrane filter, the dialysate can be used as top washing water, so that the discharge of waste liquid is reduced; compared with the existing process for extracting and preparing the itaconic acid by the whole device, the yield is obviously improved, the process is simple, the production cost is reduced, and the effect of extracting and preparing the itaconic acid by the whole device is excellent.
2. The device can realize that external cleaning fluid is used for backwashing the internal ceramic membrane when the filtering effect is reduced due to long-term operation of the ceramic membrane filter through the design of the sewage discharge three-way valve, the control valve and the external liquid access pipe in the operation process, and the whole cleaning process is rapid and convenient without manual disassembly and cleaning.
3. The device is further provided with two ceramic membrane filters, the two ceramic membrane filters are used by one, when the ceramic membrane filters in the operation process need to be maintained and cleaned, the ceramic membrane filters can be disconnected from the whole device, and meanwhile, the standby ceramic membrane filters are connected in, so that the whole membrane filtration concentration device can also operate continuously and efficiently in the process of cleaning or maintaining the ceramic membrane.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic perspective view of embodiment 1 of the present utility model;
fig. 2 is a schematic view of a first angle perspective structure of embodiment 2 of the present utility model;
FIG. 3 is a schematic view of a second angle perspective structure of embodiment 2 of the present utility model;
fig. 4 is an enlarged schematic view of the structure of fig. 2 a according to the present utility model.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other. The utility model will now be described in detail with reference to the accompanying figures 1-4, in conjunction with examples.
Example 1
Example 1 discloses a membrane filtration concentration device for itaconic acid, and referring to fig. 1, the main body of the device comprises a ceramic membrane filter 1, a nanofiltration membrane filter 2, a reverse osmosis membrane filter 3, a first infusion pump 4, a second infusion pump 5 and a third infusion pump 6.
A sewage three-way valve 101 is connected to the lower end of the ceramic membrane filter 1, a first feed pipe 102 is connected to the sewage three-way valve 101, and then the first infusion pump 4 is connected to the first feed pipe 102. A first concentrate pipe 103 is connected to the top end of the ceramic membrane filter 1, and an external liquid inlet pipe 104 is connected to the first concentrate pipe 103. A first dialysate drain 105 is provided at the lower end of the side of the ceramic membrane filter 1, and then a control valve 106 is provided on the first concentrate line 103, the control valve 106 being provided on the first concentrate line near the drain end of the first concentrate line 103.
A second feed pipe 201 is connected to the lower end of the nanofiltration membrane filter 2, and the end of the second feed pipe 201 is connected to the dialysate drain 105, and then a second infusion pump 5 is connected to the second feed pipe 201. A second concentrate pipe 202 is connected to the upper end of the nanofiltration membrane filter 2, and a second dialysate drain pipe 203 is provided to the lower end of the side surface of the nanofiltration membrane filter 2.
A third feed pipe 301 is connected to the lower end of the reverse osmosis membrane filter 3, a third infusion pump 6 is connected to the third feed pipe 301, the end of the third feed pipe 301 is connected to the second dialysate drain pipe 203, a third dialysate drain pipe 302 is provided to the lower end of the side surface of the reverse osmosis membrane filter 3, a dialysate return pipe 303 is provided between the third dialysate drain pipe 302 and the second concentrate pipe 202, and finally a third concentrate pipe 304 is connected to the upper end of the reverse osmosis membrane filter 3, and the third concentrate pipe 304 may be directly connected to an external evaporative crystallization tank.
In the membrane filtration and concentration device disclosed in this example 1, when itaconic acid fermentation liquid is filtered and concentrated, itaconic acid fermentation liquid is fed into the ceramic membrane filter 1 through the first infusion pump 4 and the first feed pipe 102, and is filtered by the internal ceramic membrane, so that most of mycelia in the fermentation liquid are trapped, concentrated liquid a is discharged from the first concentrated liquid pipe 103 after filtration, and dialysate a is discharged from the first dialysate drain pipe 105. Meanwhile, external top washing liquid is fed into the first concentrated liquid pipe 103 through the external liquid access pipe 104, so that top washing of the concentrated liquid A is realized, and the concentrated liquid A is directly discharged after top washing.
When the dialysate a enters the nanofiltration membrane filter 2, residual sugar, protein and inorganic ions in the mixed solution are removed by the nanofiltration membrane, and then the resulting concentrate B is discharged from the second concentrate tube 202, and the resulting dialysate B is discharged from the second dialysate drain 203. Meanwhile, due to the action of the dialysate return pipe 303, the dialysate C in the reverse osmosis membrane filter 3 can be sent to the second concentrate pipe 202 as top-wash to top-wash the concentrate B, and then directly discharged after top-wash. The dialysate B is sent to the reverse osmosis membrane filter 3 by the third infusion pump 6 and the third feeding pipe 301, and after being concentrated by the reverse osmosis membrane filter 3, the concentrated solution C is directly sent out of the whole device by the third concentrated solution pipe 304.
In addition, when the operation of the whole membrane filtration concentration device is stopped after a period of time, and the preliminary filtration effect of the ceramic membrane filter 1 on itaconic acid fermentation liquid is reduced, the control valve 106 on the first concentrated liquid pipe 103 is closed, the sewage discharge three-way valve 101 is regulated, then cleaning liquid is injected through the external liquid access pipe 104, the ceramic membrane in the ceramic membrane filter 1 is washed through the reverse flow of the cleaning liquid, and the washed cleaning liquid is discharged from the sewage discharge end of the sewage discharge three-way valve 101.
Example 2
Example 2 discloses a membrane filtration concentration device of improved design based on example 1, which is the same as example 1 and will not be described again, except for referring to fig. 2 to 4.
The ceramic membrane filters 1 in this embodiment 2 are provided in two, and the two ceramic membrane filters 1 are provided side by side in front of and behind. A sewage three-way valve 101 is arranged at the lower end of each ceramic membrane filter 1, one end of each sewage three-way valve 101 is connected with a first feeding pipe 102, and the other end of each sewage three-way valve 101 is connected with a sewage pipe 108.
An intermediate connecting pipe 107 is arranged between the first concentrated liquid pipes 103 on the two ceramic membrane filters 1, two liquid inlet three-way valves 109 are arranged on the intermediate connecting pipe 107 at intervals, and one ends of the liquid inlet three-way valves 109 are connected with an external liquid access pipe 104.
In this embodiment 2, through the arrangement of the two ceramic membrane filters, a standby effect is achieved, when the filtering effect of the ceramic membrane filter 1 on itaconic acid fermentation liquid in the running process is reduced, the control valve 106 in the first concentrate pipe 103 at the upper end of the ceramic membrane filter 1 is closed first, the corresponding sewage discharge three-way valve 101 of the ceramic membrane filter 1 is regulated, cleaning liquid is injected into the ceramic membrane filter 1 through the liquid inlet three-way valve 109, the ceramic membrane filter 1 can be backwashed, and the flushed sewage is discharged from the sewage discharge pipe 108 on the corresponding sewage discharge three-way valve 101.
Meanwhile, in the back flushing process of the ceramic membrane filter 1, the other standby ceramic membrane filter 1 can be connected into the circuit of the whole membrane filtration concentration device for operation, so that the uninterrupted high-efficiency operation of the whole membrane filtration concentration device is realized.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The membrane filtration concentration device for itaconic acid is characterized by comprising a ceramic membrane filter, a nanofiltration membrane filter, a reverse osmosis membrane filter, a first infusion pump, a second infusion pump and a third infusion pump, wherein a sewage three-way valve is arranged at the lower end of the ceramic membrane filter, a first liquid inlet pipe connected with the first infusion pump is arranged on the sewage three-way valve, a first concentrated liquid pipe is connected with the upper end of the ceramic membrane filter, a first dialysate drain pipe is arranged at the lower end of the ceramic membrane filter, and an external liquid access pipe and a control valve are also arranged on the first concentrated liquid pipe;
the second infusion pump is connected with a second liquid inlet pipe, two ends of the second liquid inlet pipe are respectively connected with the first dialysate discharge pipe and the lower end of the nanofiltration membrane filter, and the nanofiltration membrane filter is provided with a second concentrated liquid pipe and a second dialysate discharge pipe;
the lower extreme of reverse osmosis membrane filter is provided with the third feed liquor pipe that is connected with the third transfer pump, the tip of third feed liquor pipe is connected with the second dislysate calandria, be connected with the third dislysate calandria on the reverse osmosis membrane filter, and the third dislysate calandria is connected with the second concentrate pipe, the upper end of reverse osmosis membrane filter is connected with the third concentrate pipe.
2. A membrane filtration and concentration apparatus for itaconic acid as claimed in claim 1 wherein: the ceramic membrane filters are two, the lower end of each ceramic membrane filter is provided with a sewage three-way valve, and the first liquid inlet pipe is connected with the two sewage three-way valves.
3. A membrane filtration and concentration apparatus for itaconic acid as claimed in claim 2, wherein: and each sewage discharge three-way valve is connected with a sewage discharge pipe.
4. A membrane filtration and concentration apparatus for itaconic acid as claimed in claim 2, wherein: an intermediate connecting pipe is arranged between the first concentrated liquid pipes on the two ceramic membrane filters, two liquid inlet three-way valves are arranged on the intermediate connecting pipe, and each liquid inlet three-way valve is connected with an external liquid access pipe.
5. A membrane filtration and concentration apparatus for itaconic acid as claimed in claim 1 or 4 wherein: the control valve is arranged on the first concentrated liquid pipe close to the discharging end of the first concentrated liquid pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321006111.4U CN219848988U (en) | 2023-04-27 | 2023-04-27 | Membrane filtration concentration device for itaconic acid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321006111.4U CN219848988U (en) | 2023-04-27 | 2023-04-27 | Membrane filtration concentration device for itaconic acid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219848988U true CN219848988U (en) | 2023-10-20 |
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ID=88345968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321006111.4U Active CN219848988U (en) | 2023-04-27 | 2023-04-27 | Membrane filtration concentration device for itaconic acid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219848988U (en) |
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2023
- 2023-04-27 CN CN202321006111.4U patent/CN219848988U/en active Active
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