CN219502757U - Potassium citrate reaction unit - Google Patents
Potassium citrate reaction unit Download PDFInfo
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- CN219502757U CN219502757U CN202320647818.7U CN202320647818U CN219502757U CN 219502757 U CN219502757 U CN 219502757U CN 202320647818 U CN202320647818 U CN 202320647818U CN 219502757 U CN219502757 U CN 219502757U
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- screw reactor
- tank
- citric acid
- potassium hydroxide
- hydroxide solution
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Abstract
The utility model relates to the field of citrate production equipment, and discloses a potassium citrate reaction device which comprises a citric acid solution high-level tank, a potassium hydroxide solution high-level tank and a screw reactor, wherein a discharge port of the citric acid solution high-level tank is connected with an acid feed port of the screw reactor, a first electromagnetic flowmeter and a first electric regulating valve for displaying and regulating flow are arranged on a connecting pipeline of the citric acid solution high-level tank and the screw reactor, a discharge port of the potassium hydroxide solution high-level tank is connected with an alkali feed port of the screw reactor, and a second electromagnetic flowmeter and a second electric regulating valve for displaying and regulating flow are arranged on a connecting pipeline of the potassium hydroxide solution high-level tank and the screw reactor.
Description
Technical Field
The utility model relates to the field of citrate production equipment, in particular to a potassium citrate reaction device.
Background
Potassium citrate is colorless crystalline or white crystalline powder, is easily dissolved in water, salty and cool in taste. As a widely used additive, it has been widely used in the industries of foods, medicines, beverages, etc. Used as buffers, chelating agents, stabilizers, antioxidants, emulsifiers, etc. in the food industry and as anticoagulants, hypokalemia and treatment of alkalized urine in the pharmaceutical industry. The demand of the potassium citrate has steadily increased, and the social demand of the potassium citrate has rapidly increased along with the development of new economy.
The existing production process of potassium citrate is that citric acid solution reacts with potassium hydroxide solution to generate potassium citrate solution, and then the potassium citrate finished product is prepared through the procedures of fine filtration, evaporation crystallization, separation, drying and the like. The existing potassium citrate reaction is carried out in a reaction kettle operated intermittently, and has the defects of high labor intensity, low production efficiency, incapability of realizing automatic operation, overhigh local reaction temperature, difficulty in controlling consistency of reaction temperature and reaction end PH between batches, incapability of effectively ensuring the continuity and stability of product quality and the like.
Disclosure of Invention
(one) solving the technical problems
Aiming at the defects of the prior art, the utility model provides a potassium citrate reaction device, which overcomes the defects of the existing potassium citrate reaction process, realizes continuous and automatic operation of potassium citrate reaction, and has simple structure and low investment.
(II) technical scheme
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a potassium citrate reaction unit, includes citric acid solution overhead tank, potassium hydroxide solution overhead tank and screw rod reactor, citric acid solution overhead tank discharge gate is connected with screw rod reactor's acid feed inlet, installs electric flowmeter one and electric control valve one that show and adjust flow on the connecting tube of citric acid solution overhead tank and screw rod reactor, and potassium hydroxide solution overhead tank discharge gate is connected with eccentric screw rod reactor's alkali feed inlet, installs electric flowmeter two and electric control valve two that show and adjust flow on the connecting tube of potassium hydroxide solution overhead tank and eccentric screw rod reactor.
Preferably, the second stirring device and the first stirring device are respectively arranged in the citric acid solution overhead tank and the potassium hydroxide solution overhead tank, the acid-base feeding pipe and the exhaust port are respectively arranged on the citric acid solution overhead tank and the potassium hydroxide solution overhead tank, the second feeding control valve and the first feeding control valve are respectively arranged on the acid-base feeding pipe of the citric acid solution overhead tank and the potassium hydroxide solution overhead tank, and the first online temperature display meter and the second online temperature display meter are respectively arranged on the citric acid solution overhead tank and the potassium hydroxide solution overhead tank.
Preferably, the screw reactor is an eccentric single screw reactor with a jacket outside, the upper end of the screw reactor is provided with an acid-base feed inlet, the acid-base feed inlet is respectively connected with the upper tank of citric acid solution and the lower end of the upper tank of potassium hydroxide solution, the upper left end of the screw reactor is provided with an exhaust port, an online temperature indicator and an online PH indicator, the lower end of the screw reactor is provided with a discharge port, an external pipeline of the discharge port is provided with an electromagnetic flowmeter III and an electric regulating valve III respectively, the right upper end of the jacket is provided with a cooling water outlet, the external drainage pipeline is provided with a water outlet control valve, the left lower end of the jacket is provided with a cooling water inlet, the external pipeline is provided with an electric regulating valve IV, and the screw reactor is internally provided with a single screw.
Preferably, the left end and the right end of the screw reactor are respectively provided with a sealing device and a supporting device, the left end of the screw reactor is provided with a motor and a speed reducer, the motor is connected with the speed reducer, the left end and the right end of the single screw respectively penetrate through the screw reactor, the left end and the right end of the single screw are respectively connected with the sealing devices and the supporting devices on the two sides, and the left side of the single screw is connected with the speed reducer.
Preferably, the length-to-diameter ratio of the screw reactor is 10:1.
(III) beneficial effects
Compared with the prior art, the utility model provides a potassium citrate reaction device, which has the following beneficial effects:
1. the potassium citrate reaction device realizes continuous and automatic operation of the reaction, replaces the traditional intermittent reaction equipment, can effectively ensure the continuity and stability of the product quality, and has remarkable advantages in the aspects of improving the productivity of the reaction equipment, reducing the labor intensity, improving the production efficiency, utilizing the energy and the like.
Drawings
FIG. 1 is a schematic diagram of the structure of the present utility model.
In the figure: 1. citric acid solution overhead tank; 2. a potassium hydroxide solution overhead tank; 3. a screw reactor; 4. an electric regulating valve I; 5. an electromagnetic flowmeter I; 6. an electromagnetic flowmeter II; 7. an electric regulating valve II; 8. a first stirring device; 9. a first feeding control valve; 10. a second stirring device; 11. a second feeding control valve; 12. an electric regulating valve III; 13. an electromagnetic flowmeter III; 14. a jacket; 15. an online temperature display meter; 16. an exhaust port; 17. an online PH indicator; 18. a sealing device; 19. a support device; 20. a water outlet control valve; 21. an electric regulating valve IV; 22. a single screw; 23. a motor; 24. a speed reducer; 25. an online temperature display meter I; 26. and displaying the second meter on line.
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.
Referring to fig. 1, a potassium citrate reaction device comprises a citric acid solution overhead tank 1, a potassium hydroxide solution overhead tank 2 and a screw reactor 3, wherein a discharge port of the citric acid solution overhead tank 1 is connected with an acid feed port of the screw reactor 3, an electromagnetic flowmeter I5 and an electric regulating valve I4 for displaying and regulating flow are arranged on a connecting pipeline of the citric acid solution overhead tank 1 and the screw reactor 3, a discharge port of the potassium hydroxide solution overhead tank 2 is connected with an alkali feed port of the eccentric screw reactor 3, and an electromagnetic flowmeter II 6 and an electric regulating valve II 7 for displaying and regulating flow are arranged on a connecting pipeline of the potassium hydroxide solution overhead tank 2 and the eccentric screw reactor 3.
A second stirring device 10 and a first stirring device 8 are respectively arranged in the citric acid solution overhead tank 1 and the potassium hydroxide solution overhead tank 2, an acid-base feeding pipe and an exhaust port are arranged on the citric acid solution overhead tank 1 and the potassium hydroxide solution overhead tank 2, a second feeding control valve 11 and a first feeding control valve 9 are respectively arranged on the acid-base feeding pipe of the citric acid solution overhead tank 1 and the potassium hydroxide solution overhead tank 2, and an online temperature display meter 25 and an online temperature display meter 26 are respectively arranged in the citric acid solution overhead tank 1 and the potassium hydroxide solution overhead tank 2.
The screw reactor 3 is an eccentric single screw reactor with a jacket 14 outside, the upper end of the screw reactor 3 is provided with an acid-base feed inlet, the acid-base feed inlet is respectively connected with the upper tank 1 of citric acid solution and the lower end of the upper tank 2 of potassium hydroxide solution, the left upper end of the screw reactor 3 is provided with an exhaust port 16, an online temperature indicator 15 and an online PH indicator 17, the lower end of the screw reactor 3 is provided with a discharge port, an external pipeline of the discharge port is respectively provided with an electromagnetic flowmeter III 13 and an electric regulating valve III 12, the right upper end of the jacket 14 is provided with a cooling water outlet, the external drainage pipeline is provided with a water outlet control valve 20, the left lower end of the jacket 14 is provided with a cooling water inlet, the external pipeline is provided with an electric regulating valve IV 21, and the screw reactor 3 is internally provided with a single screw 22.
The sealing device 18 and the supporting device 19 are respectively arranged at the left end and the right end of the screw reactor 3, the motor 23 and the speed reducer 24 are arranged at the left end of the screw reactor 3, the motor 23 is connected with the speed reducer 24, the left end and the right end of the single screw 22 respectively penetrate through the screw reactor 3, the left end and the right end of the single screw 22 are respectively connected with the sealing device 18 and the supporting device 19 at the two sides, and the left side of the single screw 22 is connected with the speed reducer 24.
The aspect ratio of the screw reactor 3 was 10:1.
The operation steps and the working principle are as follows:
firstly, a second feeding control valve 11 and a first feeding control valve 9 are opened, a feeding pump on a feeding pipeline is externally connected with the second feeding control valve 11 and the first feeding control valve 9, a potassium citrate solution and a potassium hydroxide solution which are prepared in advance and have a certain temperature and concentration are respectively pumped into a citric acid solution overhead tank 1 and a potassium hydroxide solution overhead tank 2, and a second stirring device 10 and a first stirring device 8 are respectively started.
And secondly, starting the motor 23, and at the moment, electrically driving the speed reducer 24 and the single screw 22 to rotate, and adjusting the rotating speed of the single screw 22 by controlling a frequency converter of the motor 23.
And thirdly, opening the electric regulating valve II 7 and the electric regulating valve I4, observing the flow values of the electromagnetic flowmeter I5 and the electromagnetic flowmeter II 6, and adjusting the opening degrees of the electric regulating valve II 7 and the electric regulating valve I4 to enable the electromagnetic flowmeter I5 and the electromagnetic flowmeter II 6 to reach the specified flow values.
And fourthly, opening the electric regulating valve III 12, observing the flow value of the electromagnetic flowmeter III 13, and enabling the flow value of the electromagnetic flowmeter III 13 to be approximately equal to the sum of the electromagnetic flowmeter I5 and the electromagnetic flowmeter II 6 through the opening degree of the electric regulating valve IV 21. Thereby ensuring the material balance of the inlet and outlet screw reactor 3 and keeping the liquid level in the screw reactor 3 basically stable.
And fifthly, observing the display value of an online PH display meter 17 on the screw reactor, and enabling the display value of the online PH display meter 17 to reach a specified PH value by finely adjusting the opening degrees of the electric regulating valve II 7, the electric regulating valve I4 and the electric regulating valve III 12.
Sixth, the display value of the online temperature display meter 15 on the screw reactor is observed, and when the temperature is higher than the prescribed temperature display , the inflow electric control valve 21 and the full-open outflow control valve 20 are opened, and the opening of the inflow electric control valve 21 is adjusted to bring the reaction temperature to the prescribed temperature value.
Working principle: the citric acid and potassium hydroxide solution with specified temperature and mass concentration continuously enter the screw reactor 3 at specified flow, acid-base neutralization reaction continuously occurs under the mixing and stirring of the single screw 22, and the reacted materials are continuously discharged through the discharge port, so that the continuous operation of potassium citrate reaction can be realized. The operation can be automatically controlled by a PLC or a DCS.
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 utility model provides a potassium citrate reaction unit, its characterized in that includes citric acid solution overhead tank (1), potassium hydroxide solution overhead tank (2) and screw reactor (3), citric acid solution overhead tank (1) discharge gate is connected with the sour feed inlet of screw reactor (3), installs electric flowmeter one (5) and electric regulating valve one (4) that show and adjust flow on the connecting tube of citric acid solution overhead tank (1) and screw reactor (3), and potassium hydroxide solution overhead tank (2) discharge gate is connected with the alkali feed inlet of screw reactor (3), installs electric flowmeter two (6) and electric regulating valve two (7) that show and adjust flow on the connecting tube of potassium hydroxide solution overhead tank (2) and screw reactor (3).
2. The potassium citrate reaction apparatus of claim 1, wherein: the citric acid solution high-level tank (1) and the potassium hydroxide solution high-level tank (2) are respectively provided with a stirring device II (10) and a stirring device I (8), the citric acid solution high-level tank (1) and the potassium hydroxide solution high-level tank (2) are respectively provided with an acid-base feeding pipe and an exhaust port, the acid-base feeding pipe of the citric acid solution high-level tank (1) and the acid-base feeding pipe of the potassium hydroxide solution high-level tank (2) are respectively provided with a feeding control valve II (11) and a feeding control valve I (9), and the citric acid solution high-level tank (1) and the potassium hydroxide solution high-level tank (2) are respectively provided with an online temperature display meter I (25) and an online temperature display meter II (26).
3. The potassium citrate reaction apparatus of claim 1, wherein: the screw reactor (3) is an eccentric single screw reactor with a jacket (14) outside, an acid-base feed inlet is arranged at the upper end of the screw reactor (3), the acid-base feed inlet is respectively connected with the upper tank (1) of citric acid solution and the lower end of the upper tank (2) of potassium hydroxide solution, an exhaust port (16), an online temperature display meter (15) and an online PH display meter (17) are arranged at the left upper end of the screw reactor (3), a discharge port is arranged at the lower end of the screw reactor (3), an electromagnetic flowmeter III (13) and an electric control valve III (12) are respectively arranged on an external pipeline of the discharge port, a cooling water outlet is arranged at the right upper end of the jacket (14), a water outlet control valve (20) is arranged on an external drainage pipeline, a cooling water inlet is arranged at the left lower end of the jacket (14), an electric control valve IV (21) is arranged on the external pipeline, and a single screw (22) is arranged in the screw reactor (3).
4. A potassium citrate reaction apparatus according to claim 3, characterized in that: the screw reactor is characterized in that a sealing device (18) and a supporting device (19) are respectively arranged at the left end and the right end of the screw reactor (3), a motor (23) and a speed reducer (24) are arranged at the left end of the screw reactor (3), the motor (23) is connected with the speed reducer (24), the left end and the right end of a single screw (22) respectively penetrate through the screw reactor (3), the left end and the right end of the single screw (22) are respectively connected with the sealing device (18) and the supporting device (19) at two sides, and the left side of the single screw (22) is connected with the speed reducer (24).
5. The potassium citrate reaction apparatus of claim 1, wherein: the length-diameter ratio of the screw reactor (3) is 10:1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320647818.7U CN219502757U (en) | 2023-03-29 | 2023-03-29 | Potassium citrate reaction unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320647818.7U CN219502757U (en) | 2023-03-29 | 2023-03-29 | Potassium citrate reaction unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219502757U true CN219502757U (en) | 2023-08-11 |
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ID=87532053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320647818.7U Active CN219502757U (en) | 2023-03-29 | 2023-03-29 | Potassium citrate reaction unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219502757U (en) |
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2023
- 2023-03-29 CN CN202320647818.7U patent/CN219502757U/en active Active
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