Uniform feeding reaction kettle
By designing the liquid separation tank and liquid separation ring structure in the reactor, combined with the centrifugal force of the stirring device, the raw material components are uniformly and slowly added in the reactor, solving the problem of excessive particle size and excessive impurity content of the reaction generation product, and improving the purity and quality of the product.
Patent Information
- Application Number
- CN202420698072.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-07
- Publication Date
- 2025-04-29
- Estimated Expiration
- 2034-04-07
AI Technical Summary
During certain chemical reactions that require high purity, the raw material components are added unevenly to the reactor, resulting in excessive particle size of the product generated by the reaction, excessive impurity content, and reduced purity.
A uniform feed reactor is designed, using a liquid separation tank and a liquid separation ring structure, combined with the centrifugal force of the stirring device to achieve uniform and slow feeding of the material in different working intervals of the reactor.
Through this design, the uniform distribution of materials in different working intervals of the reactor is achieved, the product impurities and particle size problems caused by material concentration are avoided, and the purity and quality of the product are improved.
Smart Images
Figure CN222805170U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of chemical and metallurgical equipment, in particular to a uniform feeding reaction kettle. Background Art
[0002] Reactor is a kind of reaction vessel, which is used for two or more components to react materials or chemicals under specific conditions of temperature, pressure, catalyst, pH, etc. Reactor is widely used in the fields of petroleum, chemical industry, rubber, pesticide, dye, medicine and food, and is an important equipment indispensable for completing the process of vulcanization, nitration, hydrogenation, hydrocarbonization, polymerization, condensation, etc.
[0003] Some specific processes have very high requirements for the purity of the generated products. During the reaction, some raw material components must be slowly and evenly added to the working area of the reactor. For example, in the lithium precipitation reaction between sodium carbonate and lithium chloride in lithium-rich brine, forward or reverse feeding (i.e., continuously adding one material to another during the reaction) is used. If uniform dispersion measures are not taken during the feeding process, that is, the addition points are too concentrated, the lithium carbonate crystal particles generated by the reaction will be too coarse and too large, resulting in excessive impurities such as sodium and chlorine in the encapsulated content, and the purity of lithium carbonate will be reduced. Utility Model Content
[0004] The utility model aims to provide a uniform feeding reactor, which meets the requirements of some specific process for slowly and uniformly adding raw material components to the working interval of the reactor.
[0005] In order to achieve the above purpose, the technical solution adopted by the utility model is:
[0006] A uniform feeding reactor comprises a reactor body, an upper head and a lower head, wherein the upper head is provided with a feed pipe, an observation port and a stirring device, and the lower head is provided with a discharge port; the stirring device comprises a driving device fixedly arranged on the upper head, a stirring shaft connected to the output end of the driving device and a stirring paddle arranged at the bottom end of the stirring shaft, and a liquid separation device fixedly arranged on the stirring shaft is arranged inside the reactor body; the liquid separation device comprises a liquid separation tank with an upper opening, and the lower end of the feed pipe extends to the inside of the liquid separation tank; the bottom of the liquid separation tank is provided with a liquid separation pipe located above the working liquid level of the reactor body and a downcomer extending downward along the height direction of the reactor to below the working liquid level of the reactor body.
[0007] As a result, part of the added material is evenly thrown to the upper section of the working liquid through the separatory pipe on the separatory tank under the action of the centrifugal force provided by the reactor stirring device. At the same time, part of the material to be added enters below the working liquid level of the reactor through the downcomer in the separatory tank. Also, this part of the material is evenly thrown to the lower section of the working liquid of the reactor under the action of the centrifugal force provided by the reactor stirring device, thereby realizing a uniform and slow feeding process to different working sections of the reactor.
[0008] According to the embodiments of the present invention, the present invention can be further optimized. The following is the technical solution formed after optimization:
[0009] In a specific embodiment, the bottom of the liquid separation tank is fixedly connected to the stirring shaft, and the liquid separation tank is in a cylindrical shape with an opening at the top.
[0010] In order to make the added materials more uniform, the liquid dispensing tube includes two different shapes. In a specific embodiment, the liquid dispensing tubes are evenly distributed at the bottom of the liquid dispensing tank around the axis of the stirring shaft; the liquid dispensing tubes include a first liquid dispensing tube in a zigzag shape and a second liquid dispensing tube in a straight line evenly arranged along the circumferential direction of the liquid dispensing tank. By arranging the first liquid dispensing tube in a zigzag shape and the second liquid dispensing tube in a straight line, the materials can be evenly thrown to various areas of the reactor.
[0011] In a specific embodiment, the first liquid dispensing tube is disposed inside the second liquid dispensing tube, the upper ends of the first liquid dispensing tube and the second liquid dispensing tube extend into the liquid dispensing tank, and the lower ends thereof are higher than the working liquid level of the kettle body.
[0012] In order to disperse the material below the working liquid surface more evenly, in a specific embodiment, the upper end of the downcomer extends into the separatory tank, and the lower end is connected to a circular separatory ring; a third separatory pipe is arranged below the separatory ring along the circumferential direction of the separatory ring.
[0013] In a specific embodiment, the direction of the third liquid distributing pipe forms an angle θ with respect to the vertical plane; the third liquid distributing pipe is arranged on the inner side and the outer side of the liquid distributing ring. By arranging the liquid distributing ring, the dispersion speed of the material in the downcomer is reduced, and the mixing of the material is more uniform.
[0014] Compared with the prior art, the utility model has the following beneficial effects: the material entering the uniform feeding reactor through the feed port enters the liquid separation tank above the working liquid level and the liquid separation ring below the working liquid level at one time under the action of gravity. At the same time, under the centrifugal force provided by the stirring device, the material is thrown out from the multi-angle distribution tubes evenly distributed in the liquid separation tank and the liquid separation ring, thereby achieving uniform and slow entry into the reaction zone, avoiding the material from being concentrated in a certain position. The utility model has the advantages of simple structure, low cost, high material dispersion efficiency, and is easy to install and transform the existing device. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 It is a schematic diagram of the structure of the utility model;
[0016] Figure 2 yes Figure 1 Schematic diagram of the AA cross-section structure.
[0017] In the figure
[0018] 1- kettle body; 2- feeding pipe; 3- observation port; 4- stirring device; 41- driving device; 42- stirring shaft; 43- stirring paddle; 5- liquid separation tank; 6- liquid separation pipe; 61- first liquid separation pipe; 62- second liquid separation pipe; 7- downcomer; 8- liquid separation ring; 81- third liquid separation pipe. DETAILED DESCRIPTION
[0019] The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments. It should be noted that the embodiments and features in the embodiments of the present invention can be combined with each other without conflict. For the convenience of description, if the words "upper", "lower", "left" and "right" appear in the following text, they only indicate that the upper, lower, left and right directions are consistent with the drawings themselves, and do not limit the structure.
[0020] like Figure 1 As shown, the uniform feeding reactor of this embodiment includes a reactor body 1, an upper head and a lower head, the upper head is provided with a feed pipe 2, an observation port 3 and a stirring device 4, and the lower head is provided with a discharge port; the stirring device 4 includes a driving device 41 fixedly arranged on the upper head, a stirring shaft 42 connected to the output end of the driving device 41 and a stirring paddle 43 arranged at the bottom end of the stirring shaft 42, and a liquid separation device fixedly arranged on the stirring shaft 42 is arranged inside the reactor body 1; the liquid separation device includes a liquid separation tank 5 with an opening at the top, the bottom of the liquid separation tank 5 is fixedly connected to the stirring shaft 42, the liquid separation tank 5 is in a cylindrical shape with an opening at the top, and the lower end of the feed pipe 2 extends to the inside of the liquid separation tank 5; the bottom of the liquid separation tank 5 is provided with a liquid separation pipe 6 above the working liquid level of the reactor body 1 and a downcomer 7 extending downward along the height direction of the reactor to below the working liquid level of the reactor body 1.
[0021] The liquid distributing pipes 6 are evenly distributed at the bottom of the liquid distributing tank 5 around the axis of the stirring shaft 42; the liquid distributing pipes 6 include a first liquid distributing pipe 61 in a zigzag shape and a second liquid distributing pipe 62 in a straight line, which are evenly arranged along the circumferential direction of the liquid distributing tank 5. By arranging the first liquid distributing pipe in a zigzag shape and the second liquid distributing pipe in a straight line, the material can be evenly thrown to each area of the reaction kettle.
[0022] The first liquid distributing tube 61 is disposed inside the second liquid distributing tube 62 . The upper ends of the first liquid distributing tube 61 and the second liquid distributing tube 62 extend into the liquid distributing tank 5 , and the lower ends thereof are higher than the working liquid level of the kettle body 1 .
[0023] The upper end of the downcomer 7 extends into the interior of the liquid separation tank 5, and the lower end is connected to a circular liquid separation ring 8; a third liquid separation tube 81 is arranged below the liquid separation ring 8 along the circumferential direction of the liquid separation ring 8, and the orientation of the third liquid separation tube 81 forms an angle θ with respect to the vertical plane; the third liquid separation tube 81 is arranged on the inner and outer sides of the liquid separation ring 8.
[0024] The material entering through the feed port enters the liquid separation tank above the working liquid level and the liquid separation ring below the working liquid level at once under the action of gravity. At the same time, under the centrifugal force provided by the stirring device 4, the material is thrown out from the multi-angle liquid separation tubes evenly distributed in the liquid separation tank 5 and the liquid separation ring 8, so as to achieve uniform and slow entry into the reaction zone, and avoid the material from being concentrated in a certain position. When put into use, the material to be added enters the liquid separation tank 5 above the working liquid of the reactor through the feed port 2 on the kettle body 1; part of the added material is evenly thrown to the interval above the working liquid level through the first broken line liquid separation tube 61 and the second straight liquid separation tube 62 in the liquid separation tank 5 under the centrifugal force provided by the stirring device of the reactor; at the same time, part of the material to be added enters the liquid separation ring 8 below the working liquid level of the reactor through the downcomer 7 in the liquid separation tank 5, and this part of the material is evenly thrown to the lower area of the working liquid of the reactor from the third liquid separation tube 81 in the liquid separation ring 8 under the centrifugal force provided by the stirring device of the reactor. During the operation of the reactor, the liquid level in the liquid separation tank 5 can be observed through the observation port 3 so as to adjust the feed amount in time. The above process realizes a uniform and slow feeding process to different working sections of the reactor.
[0025] The contents explained in the above embodiments should be understood as these embodiments are only used to more clearly illustrate the present invention, and are not used to limit the scope of the present invention. After reading the present invention, various equivalent forms of modifications to the present invention by those skilled in the art fall within the scope defined by the claims attached to this application.
Claims
1. A uniform feeding reactor, comprising a reactor body (1), an upper head and a lower head, wherein the upper head is provided with a feeding pipe (2), an observation port (3) and a stirring device (4), and the lower head is provided with a discharge port; the stirring device (4) comprises a driving device (41) fixedly arranged on the upper head, a stirring shaft (42) connected to the output end of the driving device (41), and a stirring paddle (43) arranged at the bottom end of the stirring shaft (42), characterized in that: The interior of the kettle body (1) is provided with a liquid separation device fixedly arranged on the stirring shaft (42); the liquid separation device comprises a liquid separation tank (5) with an upper opening, and the lower end of the feed pipe (2) extends into the interior of the liquid separation tank (5); the bottom of the liquid separation tank (5) is provided with a liquid separation pipe (6) located above the working liquid level of the kettle body (1) and a downcomer (7) extending downwardly along the height direction of the reactor to below the working liquid level of the kettle body (1).
2. The uniform feeding reactor according to claim 1, characterized in that: The bottom of the liquid separation tank (5) is fixedly connected to the stirring shaft (42), and the liquid separation tank (5) is in the shape of a cylinder with an opening at the top.
3. The uniform feeding reactor according to claim 1, characterized in that: The liquid dispensing tubes (6) are evenly distributed at the bottom of the liquid dispensing tank (5) around the axis of the stirring shaft (42); the liquid dispensing tubes (6) comprise a first liquid dispensing tube (61) in the form of a broken line and a second liquid dispensing tube (62) in the form of a straight line, which are evenly arranged along the circumferential direction of the liquid dispensing tank (5).
4. The uniform feeding reactor according to claim 3, characterized in that: The first liquid distributing tube (61) is arranged on the inner side of the second liquid distributing tube (62); the upper ends of the first liquid distributing tube (61) and the second liquid distributing tube (62) extend into the liquid distributing tank (5), and the lower ends are higher than the working liquid level of the kettle body (1).
5. The uniform feeding reactor according to claim 1, characterized in that: The upper end of the downcomer (7) extends into the interior of the liquid separation tank (5), and the lower end is connected to a circular liquid separation ring (8); a third liquid separation pipe (81) is arranged below the liquid separation ring (8) along the circumferential direction of the liquid separation ring (8).
6. The uniform feeding reactor according to claim 5, characterized in that: The orientation of the third liquid dispensing tube (81) forms an angle θ with respect to the vertical plane; the third liquid dispensing tube (81) is provided on both the inner side and the outer side of the liquid dispensing ring (8).