CN218811191U - Acid feed liquid callback device - Google Patents
Acid feed liquid callback device Download PDFInfo
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- CN218811191U CN218811191U CN202223019158.2U CN202223019158U CN218811191U CN 218811191 U CN218811191 U CN 218811191U CN 202223019158 U CN202223019158 U CN 202223019158U CN 218811191 U CN218811191 U CN 218811191U
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Abstract
The utility model discloses an acidic feed liquid callback device, include: a resin column with built-in ion exchange resin; the outlet of the resin column is communicated with the inlet of the acidification tank so as to lead the supernatant fluid passing through the column to flow into the acidification tank and mix with the feed liquid in the acidification tank to form an acidic mixed material; the heat exchanger is communicated with an outlet of the acidification tank and is used for carrying out heat treatment on the acidic mixed material; the vacuum spraying tank is communicated with an outlet of the heat exchanger and is used for carrying out gas-liquid separation on the acid mixed material after heat treatment; the top and the bottom of the vacuum spraying tank are respectively provided with an air outlet and a discharge outlet, and the discharge outlet is communicated with the inlet of the resin column. The utility model discloses spray the jar with resin post, acidizing jar, heat exchanger, vacuum and establish ties the intercommunication design in proper order, can mix post clear liquid and fresh feed liquid to through heating and negative pressure injection treatment, discharge the thermal instability gas separation in the acid feed liquid, both realized passing the post in succession, reduced gaseous influence to the post effect again, the lye tank can realize separating gaseous recycling.
Description
Technical Field
The utility model relates to a material processing apparatus field especially relates to an acidic feed liquid callback device.
Background
Succinic acid, also known as succinic acid, is a dicarboxylic acid which is considered one of 12 basic organic compounds and has attracted attention for its application in the food industry, fine chemicals, pharmaceuticals, etc. The reported synthesis methods of succinic acid include: chemical synthesis, electrochemical methods and microbial fermentation methods. The traditional petrochemical method for producing the succinic acid needs high temperature, high pressure and expensive catalyst, and the production cost is high. The microbial fermentation method converts renewable biomass raw materials and carbon dioxide into succinic acid, reduces the consumption of non-renewable resources such as petroleum, coal and the like, saves energy, reduces emission, and is environment-friendly, so the microbial fermentation method is widely concerned.
In order to maintain the normal metabolism of microorganisms such as escherichia coli and improve the metabolic strength of products in the succinic acid production process by a fermentation method, sodium carbonate is continuously added in the fermentation process to maintain the pH value required by the growth of bacteria and carbonate or carbon dioxide required by succinic acid metabolism. Therefore, after fermentation is normally carried out in a tank, sodium carbonate is supplemented in excess, succinic acid in the fermentation liquid exists in the form of disodium succinate, and a large amount of residual sodium carbonate is mixed.
The ion exchange method is widely applied to the separation of organic acid in fermentation liquor due to the advantages of quick regeneration and recovery, simple operation and the like. Therefore, in order to obtain qualified succinic acid products, cation resin is usually adopted to exchange sodium ions in succinic acid fermentation liquor, so that disodium succinate and sodium carbonate are converted into succinic acid and carbonic acid, but the carbonic acid is unstable in property and can be decomposed at normal temperature to generate carbon dioxide and water, and a large amount of bubbles and gas columns can be formed in positive resin without the released carbon dioxide, so that the column passing efficiency is seriously influenced, even production abnormity or accidents can be caused, and in industrial production, the cost is high, the efficiency is low, and efficient continuous production cannot be realized.
Accordingly, there is a need for improvements in the art that overcome the deficiencies in the prior art.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem of the prior art, the embodiment of the utility model provides an acid feed liquid callback device can realize the discharge and the recycle of the interior hot unstable gas of acid feed liquid to and realize passing the post in succession and improve the zymotic fluid and cross post efficiency.
In order to achieve the above purpose, the utility model provides a following technical scheme: an acidic feed liquid callback device, comprising: a resin column with built-in ion exchange resin;
an inlet of the acidification tank is communicated with an outlet of the resin column so as to enable the column-passing clear liquid to flow into the acidification tank and be mixed with the feed liquid in the acidification tank to form an acidic mixed material;
the heat exchanger is communicated with the outlet of the acidification tank and is used for carrying out heat treatment on the acidic mixed material;
the vacuum spraying tank is communicated with an outlet of the heat exchanger and is used for carrying out gas-liquid separation on the acid mixed material after heat treatment; the top and the bottom of the vacuum spraying tank are respectively provided with an air outlet and a discharge hole; the discharge port is communicated with the inlet of the resin column.
Optionally, the vacuum spraying tank is internally provided with a negative pressure vacuum chamber, the vacuum spraying tank is internally provided with a spray head for spraying the acid mixture subjected to heat treatment into the negative pressure vacuum chamber for gas-liquid separation, and the separated gas and the separated material liquid are discharged from a gas outlet and a discharge outlet respectively
Optionally, a feed inlet is formed in the acidification tank and used for introducing feed liquid.
Optionally, an agitator is provided within the acidification tank.
Optionally, more than two stirring blades are longitudinally arranged on the stirring shaft of the stirrer.
Optionally, the inner wall of the acidification tank is provided with an annular partition plate from top to bottom, so that uneven mixing caused by turbulence/series flow of feed liquid and column-passing clear liquid can be prevented, and the mixing effect is improved;
the stirrer is positioned in the vacant area in the middle of the annular partition plate.
Optionally, a material conveying pump is arranged on a pipeline between the vacuum spraying tank and the resin column.
Optionally, a communication pipeline between the resin column and the acidification tank and a communication pipeline between the vacuum spraying tank and the resin column are respectively provided with a valve.
Optionally, the ion exchange resin is a cation exchange resin.
Optionally, the acidic feed liquid callback device further comprises an alkaline liquid tank, the alkaline liquid tank is communicated with the air outlet of the vacuum spraying tank, and alkaline solution is stored in the alkaline liquid tank.
The beneficial effects of the utility model reside in that:
(1) Through the design of sequentially connecting and communicating the resin column, the acidification tank, the heat exchanger and the vacuum spraying tank in series, the column-passing clear liquid and the fresh feed liquid can be blended, and through heating and negative pressure spraying treatment, the gas in the acidic feed liquid is separated and discharged out of the vacuum spraying tank through vacuumizing, so that continuous column passing is realized, and the influence of the gas entering the resin column on the column-passing efficiency is reduced;
(2) Through adding the lye tank, like the lye tank that stores alkaline solution such as sodium hydroxide, when succinic acid fermentation liquid is crossed the post and is prepared succinic acid, the carbon dioxide that heating and negative pressure jet processing separated can be in the lye tank with the sodium hydroxide effect generate sodium carbonate, the fermentation in-process of reuse succinic acid for maintain the required PH of fungus growth and the required carbonate of succinic acid metabolism, and then realized the recovery of separation gas and recycled, improve resource utilization.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in 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 invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is the utility model discloses a feed liquid callback device's schematic structure diagram.
Description of the drawings: 1-resin column, 2-lye tank, 3-vacuum spraying tank, 4-heat exchanger, 5-material conveying pump, 6-spray head, 7-acidification tank, 71-stirrer and 72-annular partition plate.
Detailed Description
The technical solutions of the present application will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments of the present application, but not all embodiments. The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments. It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict.
It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the accompanying drawings are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.
In this application, where the contrary is not intended, directional words such as "upper, lower, top and bottom" are generally used with respect to the orientation shown in the drawings, or with respect to the component itself in the vertical, vertical or gravitational direction; similarly, "inner and outer" refer to inner and outer relative to the profile of the components themselves for ease of understanding and description, but the above directional terms are not intended to limit the present application.
Referring to fig. 1, an acidic feed liquid recycling device according to a preferred embodiment of the present invention is applicable to the field of material processing devices. The acidic feed liquid callback device comprises a resin column 1, an acidification tank 7, a heat exchanger 4 and a vacuum spraying tank 3. A material conveying pump 5 is arranged on a pipeline between an inlet of the resin column 1 and a discharge port of the vacuum spraying tank 3, and the material liquid separated from gas in the vacuum spraying tank 3 is pumped into the resin column 1 under the action of the material conveying pump 5. Wherein, the resin column 1 is filled with ion exchange resin, the top of the acidification tank 7 is provided with a feed inlet for inputting fresh feed liquid, the outlet of the resin column 1 is communicated with the inlet of the acidification tank 7, so that the column-passing clear liquid flows into the acidification tank 7 and is mixed with the feed liquid in the acidification tank 7 to form an acidic mixed material; an outlet of the acidification tank 7 is communicated with an inlet of the heat exchanger 4, and the heat exchanger 4 is used for heat treatment of the acidic mixed material; the outlet of the heat exchanger 4 is communicated with the inlet of the vacuum spraying tank 3, and the top and the bottom of the vacuum spraying tank 3 are respectively provided with an air outlet and a liquid outlet; wherein the discharge gate of vacuum spraying jar 3 communicates with the import of resin column 1 to in letting in the feed liquid after the exhaust resin column 1, through ion exchange resin preparation target product, reduced gaseous to crossing the influence of post efficiency, can realize crossing the post in succession moreover.
In this embodiment, the vacuum spraying tank 3 is internally provided with a negative pressure vacuum chamber, the vacuum spraying tank 3 is internally provided with a spray head 6 for spraying the thermally treated acidic mixed material into the negative pressure vacuum chamber for gas-liquid separation, and the separated gas and the separated feed liquid are discharged from a gas outlet and a liquid outlet respectively.
In this embodiment, the acidification tank 7 is provided with a stirrer 71, preferably a multistage stirrer, that is, the stirring shaft is longitudinally provided with more than two stirring blades; more preferably, the inner wall of the acidification tank 7 is provided with an annular partition plate 72 from top to bottom, the stirrer 71 is located in a vacant area in the middle of the annular partition plate 72, and the annular partition plate 72 is designed to prevent uneven mixing caused by turbulence/series flow of the feed liquid and the column-passing clear liquid, thereby improving the mixing effect.
In this embodiment, a communication pipeline between the resin column 1 and the acidification tank 7 and a communication pipeline between the vacuum spraying tank 3 and the resin column 1 are respectively provided with a valve for controlling the on-off of the feed liquid transportation.
In order to reduce carbon dioxide emission and improve resource utilization rate, an alkali liquor tank 2 can be additionally arranged, the alkali liquor tank 2 is communicated with an air outlet of the vacuum spraying tank 3, and alkaline solution, such as sodium hydroxide, is stored in the alkali liquor tank 2, so that gas, such as carbon dioxide, can be recycled.
In the prior art, succinic acid is produced by a fermentation method, succinic acid exists in a fermentation broth in a form of disodium succinate, a large amount of residual sodium carbonate is mixed, sodium ions in the disodium succinate fermentation broth need to be exchanged through cation exchange resin, so that disodium succinate and sodium carbonate are converted into succinic acid and carbonic acid, but the carbonic acid is unstable in property, carbon dioxide and water can be generated by decomposition under normal temperature conditions, a large amount of bubbles and gas columns can be formed in positive resin by carbon dioxide which cannot be released, the column passing efficiency is seriously influenced, and efficient continuous production cannot be realized. The utility model discloses an influence, following detailed processing procedure can be solved carbon dioxide gas and imitated to the post to the acid feed liquid callback device.
In this embodiment, a liquid outlet may be additionally provided at the bottom of the resin column 1 for collecting succinic acid and carbonic acid for subsequent separation and extraction of succinic acid; a shunting device can also be arranged on a pipeline between the resin column 1 and the acidification tank 7 so as to control part of succinic acid and carbonic acid to flow to the acidification tank 7, and the rest part of succinic acid and carbonic acid flow into subsequent process equipment for separating succinic acid from column clear liquid.
As shown in fig. 1, succinic acid fermentation liquid is introduced into a resin column 1 filled with cation exchange resin, the cation exchange resin exchanges sodium ions in the disodium succinate fermentation liquid, so that disodium succinate and sodium carbonate are converted into succinic acid and carbonic acid (PH =1.5, lower than the PH of fresh succinic acid fermentation liquid), a part of column-passing clear liquid (succinic acid and carbonic acid) is introduced into an acidification tank 7, and is mixed with the fresh succinic acid fermentation liquid in the acidification tank 7, so that the PH of the mixed feed liquid is controlled at 5. The acidified feed liquid can generate obvious bubbles, after the acidified feed liquid is heated by a heat exchanger 4 (a plate heat exchanger in the embodiment) to 50-60 ℃, the gas-liquid balance in the fermentation liquid is broken, carbon dioxide is released more easily, then the heated acidic mixed material is sprayed at a high speed by a spray head 6 of a vacuum spraying tank 3 (the pressure in the tank is 0.09 MPa), the full separation of the carbon dioxide and the fermentation liquid is realized, the separated carbon dioxide is introduced into an alkali liquor tank 2 and reacts with sodium hydroxide in the tank to generate sodium carbonate, and the sodium carbonate can be used in the process for preparing succinic acid by a fermentation method; and pumping the fermentation liquor after the carbon dioxide separation into the resin column 1 through a material conveying pump 5 for normal material passing treatment.
To sum up, the utility model discloses in through spraying resin column 1, acidizing jar 7, heat exchanger 4, the vacuum is established ties the intercommunication design of jar 3, heat exchanger 4 is through heating acid compounding (carbonic acid solution), high temperature destroys the gas-liquid balance of carbon dioxide, further promote carbon dioxide and feed liquid further separation, the acid compounding that is destroyed by high temperature sprays through high pressure nozzle 6 and realizes gas-liquid separation, the gas carbon dioxide of isolating gets into to lye tank 2 in, carbon dioxide combines with the sodium hydroxide of lye tank 2 and turns into sodium carbonate, the sodium carbonate that generates can recycle to the fermentation process of succinic acid, be used for maintaining the required PH of fungus growth and the required carbonate of succinic acid metabolism, and the feed liquid after the separation is squeezed into again through delivery pump 5 and is carried out normal punishment in advance in resin column 1, both realized continuous post-passing, carbon dioxide has been reduced the column effect again, still realized the recovery and recycle of carbon dioxide, resource utilization is high.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the concept of the present invention, several variations and modifications can be made, which all fall within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. An acidic feed liquid callback device, comprising:
a resin column (1) in which an ion exchange resin is placed;
the outlet of the resin column (1) is communicated with the inlet of the acidification tank (7) so as to enable the column-passing clear liquid to flow into the acidification tank (7) and be mixed with the feed liquid in the acidification tank (7) to form an acidic mixed material;
the heat exchanger (4) is communicated with an outlet of the acidification tank (7) and is used for carrying out heat treatment on the acidic mixed material;
the vacuum spraying tank (3) is communicated with an outlet of the heat exchanger (4) and is used for carrying out gas-liquid separation on the acid mixed material after heat treatment; the top and the bottom of the vacuum spraying tank (3) are respectively provided with an air outlet and a discharge hole; the discharge port is communicated with the inlet of the resin column (1).
2. The acidic feed liquid callback device of claim 1, wherein the inside of the vacuum spraying tank (3) is a negative pressure vacuum chamber, a spray head (6) is arranged in the vacuum spraying tank (3) and used for spraying the thermally treated acidic mixed material into the negative pressure vacuum chamber for gas-liquid separation, and the separated gas and feed liquid are discharged from a gas outlet and a discharge outlet respectively.
3. The acidic feed liquid callback device according to claim 2, wherein the acidification tank (7) is provided with a feed inlet for feeding in the feed liquid.
4. The acidic feed liquid callback device according to claim 3, wherein an agitator (71) is arranged in the acidification tank (7).
5. The acidic feed liquid callback device according to claim 4, wherein more than two stirring blades are longitudinally arranged on the stirring shaft of the stirrer (71).
6. The acidic feed liquid callback device according to claim 4, wherein the inner wall of the acidification tank (7) is provided with an annular partition plate (72) from top to bottom, and the stirrer (71) is positioned in a hollow area in the middle of the annular partition plate (72).
7. The acidic feed liquid callback device according to claim 1, wherein a feed delivery pump (5) is arranged on a pipeline between the vacuum spraying tank (3) and the resin column (1).
8. The acidic feed liquid callback device according to claim 1, wherein valves are respectively arranged on a communication pipeline between the resin column (1) and the acidification tank (7) and a communication pipeline between the vacuum spraying tank (3) and the resin column (1).
9. The acidic feed liquid callback device of claim 1, wherein the ion exchange resin is a cation exchange resin.
10. The acidic feed liquid callback device according to any one of claims 1 to 9, wherein the acidic feed liquid callback device further comprises an alkaline solution tank (2), the alkaline solution tank (2) is communicated with an air outlet of the vacuum spraying tank (3), and an alkaline solution is stored in the alkaline solution tank (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223019158.2U CN218811191U (en) | 2022-11-14 | 2022-11-14 | Acid feed liquid callback device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223019158.2U CN218811191U (en) | 2022-11-14 | 2022-11-14 | Acid feed liquid callback device |
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| Publication Number | Publication Date |
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| CN218811191U true CN218811191U (en) | 2023-04-07 |
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| CN202223019158.2U Active CN218811191U (en) | 2022-11-14 | 2022-11-14 | Acid feed liquid callback device |
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| CN (1) | CN218811191U (en) |
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