Heating device of reaction kettle

Abstract

The utility model discloses a reaction kettle heating device which comprises a reaction kettle body, a cover is arranged on the upper portion of the reaction kettle body, material injection pipes are connected to the two sides of the cover, a reaction cavity is formed in the reaction kettle body, a heating cavity is formed in the periphery of the reaction cavity, a heat conduction layer is arranged between the reaction cavity and the heating cavity, and the top of the heating cavity is connected with a heating box through a backflow pipe. The bottom of the heating cavity is connected with the heating box through a first pipeline; a first pump body is mounted on the first pipeline; the heating cavity performs coating type heating on the periphery of the reaction cavity, so that heating heat can be uniformly distributed, the temperature of each part in the reaction cavity is relatively stable, reactants are uniformly heated, the reaction efficiency is improved, the inner wall surface is relatively continuous and smooth compared with a spiral pipe, reaction materials are not easy to adhere to the inner wall of the reaction cavity, and cleaning is easy in the later period; the first rotating rod drives the first stirring rod to rotate in the heating cavity to stir the heat conduction oil in the heating cavity, heat in the heat conduction oil can be evenly distributed through stirring, and the uniformity of heat transfer can be improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of reactors, and particularly relates to a heating device for a reactor. Background Art

[0002] Sulfur dichloride has many uses, including as a chemical synthesis intermediate. For example, in the production of thionyl chloride in the chemical industry, sulfur dichloride is first generated, and then a series of catalytic oxidation processes are carried out to produce thionyl chloride.

[0003] Sulfur dichloride is typically produced through the reaction of chlorine and sulfur. This process typically requires heating to facilitate the reaction, which typically occurs between 200 and 300 degrees Celsius. Heating helps provide the energy required for the reaction, promoting collisions between reactant molecules and thus accelerating the reaction rate. Sulfur has a melting point of approximately 115 degrees Celsius. When heated above this point, solid sulfur gradually transforms into a yellow liquid.

[0004] The existing heating device heats the reaction by installing a spiral heating tube in the reactor. The problem encountered is that during the heating process, the temperature of the heating liquid in the heating tube changes after heat exchange in the reactor, resulting in different temperatures between the liquid inlet and the liquid outlet, causing a temperature difference in the reactor. The reactants are heated unevenly, affecting the reaction efficiency. In addition, sulfur melts when heated and adheres to the spiral heating tube. The spatial curved outer wall of the spiral tube is difficult to clean. After long-term deposition, the heating efficiency of the spiral tube is reduced, which in turn affects the reaction efficiency. Utility Model Content

[0005] The present application proposes a reactor heating device that can be used to uniformly heat the reactor and improve the reaction efficiency of the materials in the reactor.

[0006] To achieve the above objectives, the present invention provides the following technical solutions:

[0007] A reactor heating device comprises a reactor body, a lid is provided on the upper part of the reactor body, injection tubes are connected on both sides of the lid, a reaction chamber is formed in the reactor body, a heating chamber is provided outside the reaction chamber, a heat conducting layer is provided between the reaction chamber and the heating chamber, the top of the heating chamber is connected to the heating box through a reflux pipe, the bottom of the heating chamber is connected to the heating box through a first pipeline, a first pump body is installed on the first pipeline, a first motor is installed at the bottom of the reactor body, the first motor is connected to a first rotating rod for transmission, the first rotating rod extends into the heating chamber, a first stirring rod is connected to the side of the first rotating rod, and the first stirring rod is connected to the first rotating rod in an inclined shape.

[0008] Preferably, the embodiment of the present application also discloses that the bottom of the heating chamber is connected to the insulation box through a second pipeline, a second pump body is connected to the second pipeline, the insulation box is connected to the heating box through a third pipeline, and a third pump body is installed on the third pipeline.

[0009] In one embodiment of the present application, a second motor is installed on the top of the cover, the second motor is transmission-connected to the second rotating rod, the second rotating rod extends into the reaction chamber, and the side of the second rotating rod is connected to one end of the second stirring rod.

[0010] In one embodiment of the present application, a scraper is connected to the other end of the second stirring rod, and the scraper is close to the inner wall of the reaction chamber.

[0011] In one embodiment of the present application, the side wall of the thermal insulation box is connected to a liquid outlet pipe and a liquid inlet pipe.

[0012] In one embodiment of the present application, the outer wall of the reactor body is covered with an insulation layer.

[0013] In one embodiment of the present application, a bracket is installed on the outer side wall of the reactor body.

[0014] In summary, the technical solution proposed in the present application includes the following beneficial technical effects: the present application places the reactants in the reaction chamber, and a heat-conducting layer is provided between the reaction chamber and the heating chamber. The heat-conducting oil is heated to a preset temperature through a heating box and injected into the heating chamber. The heat of the heat-conducting oil is heated to the material reaction temperature through heat transfer from the heat-conducting layer. The heating chamber is wrapped around the periphery of the reaction chamber to heat the heat evenly distributed, so that the temperature of each part in the reaction chamber is relatively stable, the temperature difference in the reaction chamber is reduced, and the reactants are heated evenly, which is beneficial to improving the reaction efficiency. In addition, compared with the built-in spiral heating tube for heating, the inner wall surface of the reaction chamber is relatively continuous and smooth compared to the spiral tube, and the reaction material is not easy to adhere to the inner wall of the reaction chamber, and it is also easy to clean later. In addition, the first rotating rod drives the first stirring rod to rotate in the heating chamber to stir the heat-conducting oil in the heating chamber. Stirring can evenly distribute the heat in the heat-conducting oil, which is beneficial to improving the uniformity of heat transfer. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0016] Figure 1 This is a schematic diagram of the top view of the three-dimensional structure of the reactor heating device provided in one embodiment of the present application;

[0017] Figure 2 A schematic diagram of a cross-sectional three-dimensional structure of a reactor heating device provided in one embodiment of the present application;

[0018] Figure 3 A schematic diagram of a cross-sectional three-dimensional structure of a reactor heating device provided in one embodiment of the present application;

[0019] Figure 4 This is a schematic cross-sectional perspective view of a reactor heating device according to an embodiment of the present application;

[0020] Figure 5 This is a schematic diagram of the axial three-dimensional structure of a reactor heating device provided in one embodiment of the present application;

[0021] In the figure: reactor body 1, reaction chamber 11, heating chamber 12, reflux pipe 121, first pipeline 122, first pump body 123, second pipeline 124, second pump body 125, heat conducting layer 13;

[0022] Cover-2, injection pipe-21;

[0023] Heating box-3;

[0024] Insulation box-4, third pipeline-41, third pump body-42;

[0025] Second motor 5, second rotating rod 51, second stirring rod 52, scraper 521;

[0026] First motor-6, first rotating rod-61, first stirring rod-62;

[0027] Bracket-7;

[0028] Liquid outlet pipe-81, liquid inlet pipe-82. DETAILED DESCRIPTION

[0029] To make the purpose, technical solutions, and advantages of the embodiments of this application more clear, the technical solutions in the embodiments of this application are clearly and completely described below. Obviously, the described embodiments are part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts also fall within the scope of protection of this application.

[0030] It should be noted that in the description of this application, the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on this application.

[0031] The terms "mounted," "connected," and "connected" in this application should be interpreted broadly. For example, they can refer to fixed, detachable, or integral connections; mechanical connections; direct connections or indirect connections through an intermediary; and internal communication between two components. Those skilled in the art will understand the specific meanings of these terms in this application based on specific circumstances.

[0032] In the embodiments of this application, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of this application should not be interpreted as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner.

[0033] This embodiment provides a reactor heating device, see Figure 1-Figure 5 As shown, it includes a reactor body 1, a lid 2 is provided on the upper part of the reactor body 1, and injection tubes 21 are connected on both sides of the lid 2. A reaction chamber 11 is formed in the reactor body 1, and a heating chamber 12 is provided on the periphery of the reaction chamber 11. A heat-conducting layer 13 is provided between the reaction chamber 11 and the heating chamber 12. The top of the heating chamber 12 is connected to the heating box 3 through a reflux pipe 121, and the bottom of the heating chamber 12 is connected to the heating box 3 through a first pipeline 122. A first pump body 123 is installed on the first pipeline 122, and a first motor 6 is installed at the bottom of the reactor body 1. The first motor 6 is transmission-connected to the first rotating rod 61, and the first rotating rod 61 extends into the heating chamber 12. The side of the first rotating rod 61 is connected to the first stirring rod 62, and the first stirring rod 62 is connected to the first rotating rod 61 in an inclined shape.

[0034] In the above embodiment, a lid 2 is provided on the upper part of the reactor body 1, and injection pipes 21 are connected on both sides of the lid 2. The injection pipe 21 is used to connect with the storage chamber, and the material in the storage chamber enters the reaction chamber 11 through the injection pipe 21. A reaction chamber 11 is formed in the reactor body 1, and a heating chamber 12 is provided on the periphery of the reaction chamber 11. A heat conducting layer 13 is provided between the reaction chamber 11 and the heating chamber 12. Further, the bottom of the heating chamber 12 is connected to the heating box 3 through the first pipeline 122, and the heating box 3 heats the heat conducting oil to the preheated state. The temperature is set and the first pump body 123 is injected into the heating chamber 12 through the first pipeline 122. The heat of the heat-conducting oil is transferred by the heat-conducting layer 13 to heat the reaction chamber 11 to the reaction temperature of the material. The heating chamber 12 is heated by the outer sheath of the reaction chamber 11 to evenly distribute the heating heat, so that the temperature of each part in the reaction chamber 11 is relatively stable, the temperature difference in the reaction chamber 11 is reduced, and the reactants are heated evenly, which is beneficial to improving the reaction efficiency. Compared with the built-in spiral heating tube for heating, the inner wall of the reaction chamber 11 is The surface is more continuous and smooth than the spiral tube, and the reaction materials are not easy to adhere to the inner wall of the reaction chamber 11, and it is also easy to clean later. Furthermore, the first motor 6 drives the first rotating rod 61 to rotate, and the first rotating rod 61 drives the first stirring rod 62 to rotate in the heating chamber 12 to stir the heat transfer oil in the heating chamber 12. Stirring can evenly distribute the heat in the heat transfer oil, which is beneficial to improving the uniformity of heat transfer. In addition, stirring the heat transfer oil can prevent the accumulation of sediment and dirt in the heat transfer oil. Sediment and dirt will reduce the heat transfer efficiency of the heat transfer oil and even block pipes and equipment. Stirring can suspend the sediment in the heat transfer oil in the oil, which is beneficial to improving the fluidity of the heat transfer oil. In addition, some heat transfer oils are relatively viscous and the first stirring rod 62 will encounter excessive resistance during the rotation and stirring process. The first stirring rod 62 is connected to the first rotating rod 61 in an inclined shape, which can reduce the cross-section of the first stirring rod 62 rotating in the heat transfer oil, reduce the rotation resistance, and prevent the first stirring rod 62 from breaking due to excessive rotation resistance, which is beneficial to improving the stability during stirring.

[0035] Preferably, the top of the heating chamber 12 is connected to the heating box 3 through the return pipe 121. The heat-conducting oil in the heating chamber 12 can flow back into the heating box 3 through the return pipe 121 to supplement heat, and then enter the heating chamber 12 through the first pump body 123 and the first pipeline 122 to form a circulation, which can keep the heating temperature stable and is beneficial to improving the reaction efficiency.

[0036] In one embodiment of the present application, see Figure 1 and Figure 2 As shown, the bottom of the heating chamber 12 is connected to the insulation box 4 through a second pipeline 124, and a second pump body 125 is connected to the second pipeline 124. The insulation box 4 is connected to the heating box 3 through a third pipeline 41, and a third pump body 42 is installed on the third pipeline 41.

[0037] In the above embodiment, when the material in the reaction chamber 11 needs to be replaced or the reaction chamber 11 needs to be cleaned, it is necessary to wait for the heat-conducting oil in the heating chamber 12 to cool down before proceeding. The bottom of the heating chamber 12 is connected to the heat preservation box 4 through the second pipeline 124. The second pipeline 124 is connected to the second pump body 125. The high-temperature heat-conducting oil can be injected into the heat preservation box 4 through the second pump body 125 and the second pipeline 124. On the one hand, the cooling speed of the entire reactor can be accelerated, which is beneficial to improving work efficiency. On the other hand, the high-temperature heat-conducting oil is injected into the heat preservation box 4 for heat preservation. The heat preservation box 4 is connected to the heating box 3 through the third pipeline 41. A third pump body 42 is installed on the pipeline 41. When the heat-conducting oil needs to be heated again, the insulated heat-conducting oil can be injected into the heating box 3 through the third pump body 42 and the third pipeline 41 for reheating and use, which can realize the reuse of the heat of the heat-conducting oil, save the energy consumed in heating the heat-conducting oil, and help reduce production costs. On the other hand, if the heat-conducting oil is stored in the heating box 3 for a long time, the heating components in the heating box 3 are easily aged by being immersed in the heat-conducting liquid for a long time. Furthermore, storing the heat-conducting oil in the insulation box 4 can inspect and maintain the empty heating box 3, which is beneficial to improving the stability and safety of the heating device.

[0038] In one embodiment of the present application, see Figure 3 As shown, a second motor 5 is installed on the top of the cover 2, and the second motor 5 is transmission-connected to a second rotating rod 51. The second rotating rod 51 extends into the reaction chamber 11, and the side of the second rotating rod 51 is connected to one end of a second stirring rod 52.

[0039] In the above embodiment, the second motor 5 drives the second rotating rod 51 to rotate, and the rotation of the second rotating rod 51 drives the second stirring rod 52 connected to the side to stir in the reaction chamber 11, which can evenly mix the reactants and make it easier for the reactants to contact and react with each other, which is beneficial to improving the reaction rate and reaction efficiency.

[0040] In one embodiment of the present application, see Figure 4 As shown, the other end of the second stirring rod 52 is connected to a scraper 521 , and the scraper 521 is close to the inner wall of the reaction chamber 11 .

[0041] In the above embodiment, the other end of the second stirring rod 52 is connected to a scraper 521, and the scraper 521 is close to the inner wall of the reaction chamber 11, so that the second stirring rod 52 can scrape off the reaction materials adhered to the inner wall of the reaction chamber 11 during the stirring process, preventing the reaction materials from adhering to the inside of the reaction chamber 11 and affecting the heat conduction of the heat conductive layer 13, which is beneficial to improving the reaction efficiency of the reactants.

[0042] In the above embodiment, the side wall of the heat preservation box 4 is connected to a liquid outlet pipe 81 and a liquid inlet pipe 82 .

[0043] In one embodiment of the present application, the liquid outlet pipe 81 can be used to drain the heat transfer oil in the insulation box to other reactors for heating, thereby realizing the transfer and sharing of the heat of the heat transfer oil, which is beneficial to improving the utilization efficiency of the heat transfer oil and avoiding the repeated heating of the heat transfer oil and waste of resources. The liquid inlet pipe 82 is used to replenish the heat transfer oil into the insulation box 4, or to inject some low-temperature heat transfer oil to adjust the temperature of the high-temperature heat transfer oil in the insulation box 4.

[0044] In one embodiment of the present application, the outer wall of the reactor body 1 is covered with a thermal insulation layer.

[0045] In the above embodiment, the reactor is covered with an insulation layer to isolate the high temperature environment inside the reactor, prevent internal heat from dissipating outward, provide a good temperature control environment for the reaction materials, and help improve the stability of the reaction.

[0046] In one embodiment of the present application, see Figure 5 As shown, a bracket 7 is installed on the outer wall of the reactor body 1.

[0047] In the above embodiment, the bracket 7 provides stable support and fixation for the reactor, ensuring that the reactor will not shake or tilt during operation, which is beneficial to improving the safety of the reactor.

[0048] During the actual use of this application: injection pipes 21 are connected to both sides of the cover 2, and the injection pipes 21 are used to connect with the storage chamber. The material in the storage chamber enters the reaction chamber 11 through the injection pipes 21. A heating chamber 12 is provided on the periphery of the reaction chamber 11 and a heat-conducting layer 13 is provided between the reaction chamber 11 and the heating chamber 12. The bottom of the heating chamber 12 is connected to the heating box 3 through the first pipe 122. The heating box 3 heats the heat-conducting oil to a preset temperature and injects it into the heating chamber 12 through the first pump body 123 through the first pipe 122. The heat of the heat-conducting oil heats the reaction chamber 11 to the material reaction temperature by heat transfer through the heat-conducting layer 13. The heating heat can be evenly distributed on the periphery of the reaction chamber 11 by the heating chamber 12, so that each part in the reaction chamber 11 can be heated. The temperature at the position is relatively stable. The top of the heating chamber 12 is connected to the heating box 3 through the return pipe 121. The heat-conducting oil in the heating chamber 12 can flow back into the heating box 3 through the return pipe 121 to supplement heat, and then enter the heating chamber 12 through the first pump body 123 and the first pipeline 122 to form a circulation, which can keep the heating temperature stable. The first motor 6 drives the first rotating rod 61 to rotate, and the first rotating rod 61 drives the first stirring rod 62 to rotate in the heating chamber 12 to stir the heat-conducting oil in the heating chamber 12. Stirring can evenly distribute the heat in the heat-conducting oil, which is beneficial to improving the uniformity of heat transfer. The first stirring rod 62 is connected to the first rotating rod 61 in an inclined shape, which can reduce the cross-section of the first stirring rod 62 rotating in the heat-conducting oil and reduce the rotational resistance.

[0049] In addition, compared with the internal spiral heating tube for heating, the inner wall surface of the reaction chamber 11 is relatively continuous and smooth compared with the spiral tube, and the reaction materials are not easy to adhere to the inner wall of the reaction chamber 11, and it is also easy to clean later.

[0050] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit them. Although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some or all of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A reactor heating device, characterized in that: The invention comprises a reactor body (1), a lid (2) is provided on the upper part of the reactor body (1), injection tubes (21) are connected to both sides of the lid (2), a reaction chamber (11) is formed in the reactor body (1), a heating chamber (12) is provided on the periphery of the reaction chamber (11), a heat conducting layer (13) is provided between the reaction chamber (11) and the heating chamber (12), the top of the heating chamber (12) is connected to the heating box (3) through a reflux pipe (121), and the bottom of the heating chamber (12) is connected to the heating box (3). The reactor body (1) is connected to the heating box (3) through a first pipeline (122), a first pump body (123) is installed on the first pipeline (122), a first motor (6) is installed at the bottom of the reactor body (1), the first motor (6) is connected to the first rotating rod (61) by transmission, the first rotating rod (61) extends into the heating chamber (12), the side of the first rotating rod (61) is connected to the first stirring rod (62), and the first stirring rod (62) is connected to the first rotating rod (61) in an inclined shape.

2. The reactor heating device according to claim 1, characterized in that: The bottom of the heating chamber (12) is connected to the heat preservation box (4) via a second pipeline (124), a second pump body (125) is connected to the second pipeline (124), the heat preservation box (4) is connected to the heating box (3) via a third pipeline (41), and a third pump body (42) is installed on the third pipeline (41).

3. The reactor heating device according to claim 1, characterized in that: A second motor (5) is installed on the top of the cover (2), and the second motor (5) is connected to a second rotating rod (51) in a transmission manner. The second rotating rod (51) extends into the reaction chamber (11), and the side of the second rotating rod (51) is connected to one end of a second stirring rod (52).

4. The reactor heating device according to claim 3, characterized in that: The other end of the second stirring rod (52) is connected to a scraper (521), and the scraper (521) is close to the inner wall of the reaction chamber (11).

5. The reactor heating device according to claim 2, characterized in that: The side wall of the heat preservation box (4) is connected with a liquid outlet pipe (81) and a liquid inlet pipe (82).

6. The reactor heating device according to claim 1, characterized in that: The outer wall of the reactor body (1) is covered with a heat-insulating layer.

7. The reactor heating device according to any one of claims 1 to 6, characterized in that: A bracket (7) is installed on the outer side wall of the reactor body (1).

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