Graphite reaction device for choline chloride salifying process

Abstract

The utility model belongs to the technical field of choline chloride preparation equipment, and discloses a graphite reaction device for a choline chloride salifying process, which is characterized in that a graphite reaction kettle is communicated with a block hole type heat exchanger through a connecting pipeline; the graphite reaction kettle comprises a metal shell, a graphite lining and a stirring device, and the graphite lining is fixed on the inner side of the metal shell; the inner side of the block hole type heat exchanger is filled with a graphite heat exchange block, and a plurality of rows of transverse through holes and longitudinal through holes are formed in the middle of the graphite heat exchange block. The graphite reaction kettle is communicated with the block hole type heat exchanger, so that materials in the graphite reaction kettle can circularly flow in the block hole type heat exchanger, proper reaction temperature can be guaranteed while the materials react, chemical reaction is facilitated, heat generated by the reaction can be quickly and uniformly dispersed by the graphite lining, and the heat transfer efficiency is improved. Therefore, the adverse effect on the material caused by the overhigh reaction temperature is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of choline chloride preparation equipment, in particular to a graphite reaction device for a choline chloride salt-forming process. Background Art

[0002] At present, choline chloride is a kind of artificial choline. As an important chemical raw material, it is widely used in feed additives, medicine, pesticides and other fields. In its production process, the salt-forming process is one of the key links, which directly affects the quality and output of the product.

[0003] In the choline chloride salt formation process, the selection and design of the reaction device is crucial. Traditional reaction devices are mostly made of metal materials, but metal materials are easily corroded during the reaction process, and the control of reaction conditions is not precise enough. Therefore, with the continuous development of chemical technology, more and more companies are beginning to seek new reaction devices to replace traditional metal reaction devices.

[0004] As a new type of reaction equipment, graphite reaction device has the characteristics of corrosion resistance, high temperature resistance, and excellent heat transfer performance, so it has been widely used in chemical production. In the choline chloride salt formation process, the use of graphite reaction device can effectively solve the corrosion problem of metal reaction device, and at the same time can more accurately control the reaction conditions and improve the quality and output of the product.

[0005] The existing production process of choline chloride salt formation is to add materials into a graphite reaction device for chemical reaction. After the reaction is completed, the reaction product is transported to a cooling device for cooling, and then filtered and concentrated. However, since the reaction process of the material in the graphite reaction device releases a large amount of heat, it is easy to have an adverse effect on the reaction temperature of the material and reduce the reaction efficiency of the material.

[0006] Through the above analysis, the problems and defects of the prior art are as follows: the existing graphite reaction device of the choline chloride salt-forming process releases a large amount of heat during the material reaction process, which is likely to have an adverse effect on the reaction temperature of the material and reduce the reaction efficiency of the material. Utility Model Content

[0007] In order to overcome the problems existing in the related technology, the utility model provides a graphite reaction device for a choline chloride salt-forming process.

[0008] The technical solution of the utility model is as follows:

[0009] A graphite reaction device for a choline chloride salt-forming process is provided with a graphite reaction kettle, and the graphite reaction kettle is connected to a block-hole heat exchanger through a connecting pipeline;

[0010] The graphite reactor comprises a metal shell, a graphite lining and a stirring device, wherein the graphite lining is fixed inside the metal shell;

[0011] A sealing cover is fixed on the upper end of the metal shell, the stirring device is fixedly connected to the middle position of the sealing cover, and a discharge port connected to the bottom of the graphite lining is opened at the bottom of the metal shell;

[0012] The inner side of the block hole type heat exchanger is filled with graphite heat exchange blocks, and a plurality of rows of transverse through holes and longitudinal through holes are provided in the middle of the graphite heat exchange block, and the transverse through holes and longitudinal through holes are arranged at staggered intervals. The upper and lower ends of the block hole type heat exchanger are respectively provided with a material inlet and a material outlet, and the upper and lower ends of both sides of the block hole type heat exchanger are respectively provided with a heat transfer medium inlet and a heat transfer medium outlet, and the heat transfer medium inlet and the heat transfer medium outlet are respectively connected to the external cooling circulation pipeline.

[0013] In one embodiment, the stirring device includes a driving motor, a transmission shaft and stirring blades. The driving motor is fixed to the upper end of the sealing cover, the transmission shaft is located on the inner side of the metal shell, the upper end of the transmission shaft is fixedly connected to the output shaft of the driving motor, and a plurality of stirring blades are equidistantly fixed on the outside of the transmission shaft.

[0014] In one embodiment, a feeding port, a circulation outlet and a circulation inlet are provided on the upper surface of the sealing cover. The circulation outlet and the circulation inlet are respectively connected to the material inlet and the material outlet of the block hole heat exchanger through connecting pipelines, and the inner end of the circulation outlet is connected to the inner bottom of the graphite reactor through a pipeline.

[0015] In one embodiment, a plurality of annular equidistantly distributed fixing seats are fixed to the outside of the graphite reactor and the block hole type heat exchanger, and the fixing seats include a connecting plate, a support plate and a fixing plate. Two longitudinally spaced support plates are fixed to the outside of the connecting plate, and the fixing plate is fixedly connected to the lower end surfaces of the two support plates, and a fixing hole is opened in the middle of the fixing plate.

[0016] In one embodiment, the block hole type heat exchanger further includes a cylindrical shell, an upper head and a lower head, and the upper head and the lower head are respectively fixedly connected to the upper and lower ends of the cylindrical shell.

[0017] In one embodiment, a plurality of annularly distributed pressure springs are fixed to the upper end of the upper head.

[0018] In combination with all the above technical solutions, the beneficial effects of the utility model are as follows:

[0019] The graphite reactor in the utility model is connected with the block hole type heat exchanger, and the materials in the graphite reactor can be circulated in the block hole type heat exchanger, which is convenient for the materials to react while ensuring the appropriate reaction temperature, which is conducive to the chemical reaction. Moreover, the graphite lining is fixed on the inner side of the metal shell. This design not only utilizes the good thermal conductivity of graphite, but also combines the durability of the metal shell. During the chemical reaction process, the graphite lining can quickly and evenly disperse the heat generated by the reaction and transfer it through the metal shell, thereby avoiding the adverse effects of excessive reaction temperature on the materials.

[0020] The graphite reaction device in the utility model also has the advantages of simple operation and convenient maintenance, etc., which can reduce production costs and improve the economic benefits of enterprises.

[0021] The stirring device in the utility model can utilize a driving motor to drive a transmission shaft and a stirring blade to rotate, thereby realizing stirring of materials in a graphite reactor and improving the reaction efficiency of the materials; the circulation outlet is connected with the bottom of the inner side of the graphite reactor, thereby facilitating circulation cooling treatment of all materials; by arranging a fixing seat on the outer side of the graphite reactor and the block hole type heat exchanger, the graphite reactor and the block hole type heat exchanger can be supported and fixed by a steel structure frame, thereby ensuring the stability of the fixation; the pressure spring can ensure the installation firmness of the upper head.

[0022] It should be understood that the above general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the present disclosure.

[0024] Figure 1 It is a structural schematic diagram of a graphite reaction device for the choline chloride salt-forming process provided by an embodiment of the utility model;

[0025] Figure 2 It is a structural schematic diagram of the sealing cover provided by an embodiment of the utility model;

[0026] Figure 3 It is a structural schematic diagram of a block hole type heat exchanger provided by an embodiment of the utility model;

[0027] In the figure: 1. graphite reactor; 2. metal shell; 3. graphite lining; 4. sealing cover; 5. discharge port; 6. graphite heat exchange block; 7. material inlet; 8. material outlet; 9. heat transfer medium inlet; 10. heat transfer medium outlet; 11. drive motor; 12. transmission shaft; 13. stirring blade; 14. circulation outlet; 15. circulation inlet; 16. feeding port; 17. connecting plate; 18. support plate; 19. fixing plate; 20. fixing hole; 21. cylindrical shell; 22. upper head; 23. lower head; 24. pressure spring; 25. fixing seat; 26. block hole heat exchanger. DETAILED DESCRIPTION

[0028] In order to make the above-mentioned purposes, features and advantages of the utility model more obvious and easy to understand, the specific implementation of the utility model is described in detail below in conjunction with the accompanying drawings. In the following description, many specific details are set forth to facilitate a full understanding of the utility model. However, the utility model can be implemented in many other ways different from those described herein, and those skilled in the art can make similar improvements without violating the connotation of the utility model, so the utility model is not limited by the specific implementation disclosed below.

[0029] like Figure 1 As shown, the graphite reaction device for the choline chloride salt-forming process provided by the embodiment of the utility model includes a graphite reaction kettle 1 and a block hole type heat exchanger 26 .

[0030] The graphite reactor 1 is connected to the block hole heat exchanger 26 through a connecting pipeline; the graphite reactor 1 includes a metal shell 2, a graphite lining 3 and a stirring device, and the graphite lining 3 is fixed to the inner side of the metal shell 2; a sealing cover 4 is fixed to the upper end of the metal shell 2, and the stirring device is fixedly connected to the middle position of the sealing cover 4, and a discharge port 5 connected to the bottom of the graphite lining 3 is opened at the bottom of the metal shell 2;

[0031] The inner side of the block hole type heat exchanger 26 is filled with a graphite heat exchange block 6, and a plurality of rows of transverse through holes and longitudinal through holes are provided in the middle of the graphite heat exchange block 6, and the transverse through holes and the longitudinal through holes are arranged at staggered intervals. The upper and lower ends of the block hole type heat exchanger 26 are respectively provided with a material inlet 7 and a material outlet 8, and the upper and lower ends of both sides of the block hole type heat exchanger 26 are respectively provided with a heat transfer medium inlet 9 and a heat transfer medium outlet 10, and the heat transfer medium inlet 9 and the heat transfer medium outlet 10 are respectively connected to the external cooling circulation pipeline.

[0032] Preferably, the stirring device in the embodiment of the utility model comprises a driving motor 11, a transmission shaft 12 and a stirring blade 13, wherein the driving motor 11 is fixed to the upper end of the sealing cover 4, the transmission shaft 12 is located inside the metal shell 2, the upper end of the transmission shaft 12 is fixedly connected to the output shaft of the driving motor 11, and a plurality of stirring blades 13 are equidistantly fixed to the outside of the transmission shaft 12. The stirring device can utilize the driving motor 11 to drive the transmission shaft 12 and the stirring blade 13 to rotate, thereby stirring the material in the graphite reactor and improving the reaction efficiency of the material.

[0033] like Figure 2 As shown, the upper surface of the sealing cover 4 in the embodiment of the utility model is provided with a feeding port 16, a circulation outlet 14 and a circulation inlet 15, and the circulation outlet 14 and the circulation inlet 15 are respectively connected to the material inlet 7 and the material outlet 8 of the block hole type heat exchanger 26 through connecting pipelines, and the inner end of the circulation outlet 14 is connected to the bottom of the inner side of the graphite reactor 1 through a pipeline. The circulation outlet is connected to the bottom of the inner side of the graphite reactor, so that all materials can be circulated and cooled.

[0034] like Figure 2 and Figure 3 As shown, the outside of the graphite reactor 1 and the block hole type heat exchanger 26 in the embodiment of the utility model are fixed with a plurality of annular equidistantly distributed fixing seats 25, the fixing seats 25 include a connecting plate 17, a supporting plate 18 and a fixing plate 19, two longitudinally spaced supporting plates 18 are fixed to the outside of the connecting plate 17, the fixing plate 19 is fixedly connected to the lower end surfaces of the two supporting plates 18, and a fixing hole 20 is provided in the middle of the fixing plate 19. By arranging the fixing seats 25 on the outside of the graphite reactor and the block hole type heat exchanger, it is convenient to support and fix the graphite reactor and the block hole type heat exchanger using a steel structure frame, thereby ensuring the stability of the fixation.

[0035] like Figure 3 As shown, the block hole type heat exchanger 26 in the embodiment of the utility model further includes a cylindrical shell 21, an upper head 22 and a lower head 23, and the upper head 22 and the lower head 23 are fixedly connected to the upper and lower ends of the cylindrical shell 21 respectively.

[0036] Preferably, a plurality of annularly distributed pressure springs 24 are fixed to the upper end of the upper head 22 in the embodiment of the utility model. The pressure springs 24 can ensure the firmness of the installation of the upper head.

[0037] The working principle of the utility model is as follows: when the utility model is used, the material to be reacted is first added to the graphite reactor 1 through the feed port 13 on the sealing cover 4. After the material is added, the stirring device is started. The driving motor 11 drives the transmission shaft 12 and the stirring blade 13 to rotate, so that the material is evenly mixed in the graphite reactor 1 and the reaction is promoted. The stirring process also helps to evenly distribute the heat and prevent local overheating. During the reaction process, the heat generated is quickly transferred to the metal shell 2 through the graphite lining 3, which is convenient for heat dissipation. The material in the graphite reactor 1 is transferred to the block hole type heat exchanger 26 through the connecting pipeline, flows through the longitudinal through holes of the graphite heat exchange block 6, and the transverse through holes of the graphite heat exchange block 6 are used for the flow of heat transfer medium to improve the heat exchange efficiency. The heat transfer medium such as cooling water enters the block hole type heat exchanger 26 through the heat transfer medium inlet 9, absorbs the heat transferred from the graphite reactor 1, and then flows out through the heat transfer medium outlet 10 and enters the external cooling circulation pipeline for cooling. The cooled heat transfer medium enters the block hole type heat exchanger 1 again to form a cycle, and continuously removes the heat generated by the reaction. In this process, the material in the graphite reactor circulates between the graphite reactor and the block hole type heat exchanger through the circulation outlet and the circulation inlet, realizing continuous cooling of the material. When the reaction reaches a predetermined degree, the stirring and cooling cycle are stopped. The discharge port 5 is opened to discharge the reaction product from the graphite reactor 1 for subsequent filtering, concentration and other operations.

[0038] In the description of the present invention, unless otherwise specified, "multiple" means two or more; the terms "upper", "lower", "left", "right", "inner", "outer", "front end", "rear end", "head", "tail" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0039] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it; although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in the field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents, and these modifications or replacements should be included in the protection scope of the utility model.

Claims

1. A graphite reaction device for choline chloride salt formation process, comprising a graphite reaction kettle (1), characterized in that: The graphite reactor (1) is connected to a block hole type heat exchanger (26) via a connecting pipeline; The graphite reactor (1) comprises a metal shell (2), a graphite lining (3) and a stirring device, wherein the graphite lining (3) is fixed to the inner side of the metal shell (2); A sealing cover (4) is fixed to the upper end of the metal shell (2), the stirring device is fixedly connected to the middle position of the sealing cover (4), and a discharge port (5) is provided at the bottom of the metal shell (2) and is connected to the bottom of the graphite lining (3); The inner side of the block hole type heat exchanger (26) is filled with a graphite heat exchange block (6), and a plurality of rows of transverse through holes and longitudinal through holes are provided in the middle of the graphite heat exchange block (6), and the transverse through holes and longitudinal through holes are arranged in a staggered manner. The upper and lower ends of the block hole type heat exchanger (26) are respectively provided with a material inlet (7) and a material outlet (8), and the upper and lower ends of both sides of the block hole type heat exchanger (26) are respectively provided with a heat transfer medium inlet (9) and a heat transfer medium outlet (10), and the heat transfer medium inlet (9) and the heat transfer medium outlet (10) are respectively connected to an external cooling circulation pipeline.

2. The graphite reaction device for choline chloride salt formation process according to claim 1, characterized in that: The stirring device comprises a driving motor (11), a transmission shaft (12) and a stirring blade (13); the driving motor (11) is fixed to the upper end of the sealing cover (4); the transmission shaft (12) is located inside the metal shell (2); the upper end of the transmission shaft (12) is fixedly connected to the output shaft of the driving motor (11); and a plurality of stirring blades (13) are equidistantly fixed to the outside of the transmission shaft (12).

3. The graphite reaction device for choline chloride salt formation process according to claim 1, characterized in that: The upper surface of the sealing cover (4) is provided with a feeding port (16), a circulation outlet (14) and a circulation inlet (15); the circulation outlet (14) and the circulation inlet (15) are respectively connected to the material inlet (7) and the material outlet (8) of the block hole type heat exchanger (26) through connecting pipelines; the inner end of the circulation outlet (14) is connected to the bottom of the inner side of the graphite reactor (1) through a pipeline.

4. The graphite reaction device for choline chloride salt formation process according to claim 1, characterized in that: A plurality of annular equidistantly distributed fixing seats (25) are fixed to the outside of the graphite reactor (1) and the block hole type heat exchanger (26); the fixing seats (25) include a connecting plate (17), a supporting plate (18) and a fixing plate (19); two longitudinally spaced supporting plates (18) are fixed to the outside of the connecting plate (17); the fixing plate (19) is fixedly connected to the lower end surfaces of the two supporting plates (18); and a fixing hole (20) is provided in the middle of the fixing plate (19).

5. The graphite reaction device for choline chloride salt formation process according to claim 1, characterized in that: The block hole type heat exchanger further comprises a cylindrical shell (21), an upper end cover (22) and a lower end cover (23), wherein the upper end cover (22) and the lower end cover (23) are respectively fixedly connected to the upper and lower ends of the cylindrical shell (21).

6. The graphite reaction device for choline chloride salt formation process according to claim 5, characterized in that: A plurality of annularly distributed pressure springs (24) are fixed to the upper end of the upper sealing head (22).

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