Novel rotary reaction kettle

Abstract

The utility model discloses a novel rotary reaction kettle which comprises a shell, a first container, a second container, a heat exchange tube and a rotary shaft, the first container and the second container are communicated through a plurality of heat exchange tubes, the shell surrounds the peripheries of the heat exchange tubes and is connected with the first container and the second container, the rotating shafts comprise a first rotating shaft and a second rotating shaft, the first rotating shaft is connected with one outer side of the shell, and the second rotating shaft is connected with the other outer side of the shell; wherein the second rotating shaft is a tubular part and is communicated with the interior of the shell, an oil inlet pipe is arranged in the second rotating shaft, the oil inlet pipe extends into the shell, and a gap between the second rotating shaft and the oil inlet pipe is an oil outlet pipeline. The reaction kettle is completely different from a traditional reaction kettle in conception, a coupler and a stirrer with magnetic force are omitted, and the problems of the traditional reaction kettle are solved.

Description

Technical Field

[0001] The utility model relates to the technical field of reaction kettles, and particularly relates to a novel rotary reaction kettle. Background Art

[0002] A high-temperature and high-pressure reaction kettle refers to a reactor operating under high temperature and high pressure. It is widely used in petroleum, chemical industry, rubber, pesticides, dyes, medicine, and food to complete pressure vessels for processes such as vulcanization, nitrification, hydrogenation, alkylation, polymerization, and condensation, such as reactors, reaction kettles, decomposition pots, polymerization kettles, etc.; the materials are generally carbon manganese steel, stainless steel, zirconium, nickel-based alloys, and other composite materials.

[0003] The structure of a traditional reaction kettle is as Figure 1 shown. The bottom 101 of the kettle and the kettle cover 102 are hermetically connected. A heat transfer oil jacket 103 is arranged outside the bottom 101 of the kettle. Heat transfer oil enters the heat transfer oil jacket 103 to heat the reaction materials inside the reaction kettle. An oil stirrer 105 is arranged inside the bottom 101 of the kettle. An oil cooling coil 106 is arranged inside the bottom 101 of the kettle. The coupling 104 is mainly composed of a pair of inner and outer magnetic rings with strong magnetism, and there is a pressure-bearing spacer in the middle. The stirrer 105 is driven by a servo motor through the coupling 104. By controlling the rotation speed of the servo motor, the purpose of controlling the stirring speed can be achieved. A water jacket is arranged outside the coupling 104, and cooling water is used to cool the coupling 104 to prevent demagnetization due to high temperature.

[0004] The traditional reaction kettle structure has the following disadvantages: 1. When the motor rotates and the magnetic stirrer does not rotate, the current of the motor decreases, the temperature inside the micro high-pressure reaction kettle is too high, and there is a problem with the cooling system, and the magnetic stirrer is demagnetized due to high temperature; 2. There is frictional noise during stirring. When there are crystals or solids in the reaction solution, the inner magnetic drive of the magnetic coupling is prone to jamming and wear; 3. The stirring effects at different positions in the liquid surface of the traditional paddle stirring are different. At the same time, when stirring reactants with high hardness, the reactants themselves will cause erosion and wear to the paddle and the inner wall of the reaction kettle, and the ground debris will contaminate the materials; 4. Since it is necessary to seal between the reaction kettle and the stirrer 105, the leakage risk of the high-pressure magnetic stirring reaction kettle is relatively high; 5. Since the reaction is carried out under high pressure and high temperature, some reactants and products adhere to the reaction kettle wall and the stirrer, making it difficult to clean; 6. The traditional stainless steel reaction kettle is not suitable for some high-acid and high-alkaline reaction conditions, which will corrode the inner wall of the reaction kettle, the stirring paddle, and the cooling coil 106. It is too expensive to process the whole reaction kettle with special alloys.

[0005] Therefore, it is urgent to design a more excellent reaction kettle. Content of the Utility Model

[0006] Aiming at the above problems existing in the prior art, the purpose is to provide a novel rotary reaction kettle.

[0007] The specific technical solution is as follows:

[0008] A novel rotary reactor mainly includes: a shell, a first container, a second container, heat exchange tubes, and a rotating shaft;

[0009] The first container is communicated with the second container through a plurality of the heat exchange tubes. The shell surrounds the periphery of the heat exchange tubes and is connected to the first container and the second container. The rotating shaft includes a first rotating shaft and a second rotating shaft. The first rotating shaft is connected to one outer side of the shell, and the second rotating shaft is connected to the other outer side of the shell;

[0010] Wherein, the second rotating shaft is a tubular part and is communicated with the inside of the shell. An oil inlet pipe is arranged inside the second rotating shaft. The oil inlet pipe extends into the inside of the shell. The gap between the second rotating shaft and the oil inlet pipe is an outflow pipeline.

[0011] In the above-mentioned novel rotary reactor, there is also such a feature that it further includes a partition member. The partition member includes a first partition, a second partition, and a side partition. The first partition and the second partition are arranged opposite to each other. The side partitions are respectively connected to the first partition and the second partition. The first partition, the second partition, and the side partitions form a hollow shell structure inside. The heat exchange tubes pass through the shell structure, and the oil inlet pipe extends into the shell structure.

[0012] In the above-mentioned novel rotary reactor, there is also such a feature that a first oil distributor is arranged at one end of the oil inlet pipe located inside the shell structure.

[0013] In the above-mentioned novel rotary reactor, there is also such a feature that a second oil distributor and an oil outlet pipe are further arranged inside the shell structure. One end of the oil outlet pipe penetrates through the side partition, and the other end of the oil outlet pipe is communicated with the second oil distributor.

[0014] In the above-mentioned novel rotary reactor, there is also such a feature that the first container includes a first perforated cone body and a first cover body which are communicated with each other. The second container includes a second perforated cone body and a second cover body which are communicated with each other. Two ends of the heat exchange tubes are respectively installed on the first perforated cone body and the second perforated cone body. A feed inlet is arranged on the first cover body, and a discharge outlet is arranged on the second cover body.

[0015] In the above-mentioned novel rotary reactor, there is also such a feature that a pressure sensor and a temperature sensor are arranged on the first cover body.

[0016] In the above-mentioned novel rotary reactor, there is also such a feature that it further includes a first support and a second support. A first bearing seat is provided on the first support, a first bearing is arranged in the first bearing seat, the first rotating shaft is arranged in the first bearing, the second support is provided with a second bearing seat, a second bearing is arranged in the second bearing seat, and the second rotating shaft is arranged in the second bearing.

[0017] In the above-mentioned novel rotary reactor, there is also such a feature that a driving structure is further provided on the second support, and the driving structure can drive the second rotating shaft to rotate.

[0018] In the above-mentioned novel rotary reactor, there is also such a feature that the driving structure includes a driving member, a first pulley, a second pulley, a belt, a first gear, a second gear and a chain. The driving member is drivingly connected with the first pulley, the belt is sleeved on the first pulley and the second pulley, the first gear is installed on the second pulley, the chain is meshingly connected with the first gear and the second gear, a bearing is arranged in the second gear, and the second rotating shaft passes through the bearing.

[0019] In the above-mentioned novel rotary reactor, there is also such a feature that a steering structure is arranged between the first gear and the second pulley.

[0020] The positive effects of the above technical solutions are:

[0021] A novel rotary reactor provided by the present utility model connects a first container and a second container through a heat exchange tube, drives the rotation of the reactor by the rotation of the first rotating shaft and the second rotating shaft, so that the materials are continuously turned over in the reactor, and the heat transfer oil enters the reactor from the second rotating shaft and then flows out from the second rotating shaft. It has a completely different concept from the traditional reactor, cancels the use of the magnetic coupling 104 and the agitator 105, and no longer has the problems existing in the previous traditional reactor. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a schematic structural diagram of a traditional reactor;

[0023] Figure 2 is a first schematic structural diagram of the novel rotary reactor provided by the present utility model;

[0024] Figure 3 is Figure 2 a sectional structural diagram along the C-C direction;

[0025] Figure 4 is Figure 2 the right view of

[0026] Figure 5 The second structural schematic diagram of the novel rotary reactor provided by the present utility model;

[0027] Figure 6 is Figure 5 the sectional structural schematic diagram along the B-B direction;

[0028] Figure 7 is Figure 6 the sectional structural schematic diagram of;

[0029] Figure 8 The structural schematic diagram of the partition member provided by the present utility model.

[0030] In the drawings: 101, the bottom of the kettle; 102, the kettle cover; 103, the heat-conducting oil jacket; 104, the coupling; 105, the stirrer; 106, the cooling coil; 201, the first container; 202, the second container; 203, the housing; 204, the heat exchange tube; 205, the oil inlet pipe; 2061, the feed valve; 2062, the discharge valve; 207, the pressure sensor; 208, the temperature sensor; 209, the side partition; 211, the first rotating shaft; 212, the second rotating shaft; 221, the first perforated cone; 222, the second perforated cone; 231, the first cover; 2311, the feed port; 232, the second cover; 2321, the discharge port; 241, the first partition; 242, the second partition; 251, the first oil distributor; 252, the second oil distributor; 261, the first bracket; 262, the second bracket; 271, the first bearing seat; 272, the second bearing seat; 281, the first pulley; 282, the second pulley; 291, the first gear; 292, the second gear; 213, the oil outlet pipe; 214, the driving member; 215, the belt; 216, the chain. Specific embodiments

[0031] In order to make the objectives, technical solutions and advantages of the present utility model clearer and more understandable, the present utility model will be further described in detail below through embodiments and in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to explain the present utility model and are not used to limit the present utility model.

[0032] The serial numbers assigned to components in this text itself, such as "first", "second", etc., are only used to distinguish the described objects and do not have any sequential or technical meaning. And the "connection" and "coupling" mentioned in this application, unless otherwise specified, both include direct and indirect connection (coupling). In the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0033] In the present invention, unless otherwise clearly specified and limited, the first feature being "on" or "under" the second feature may be that the first and second features are in direct contact, or the first and second features are indirectly in contact through an intermediate medium. Moreover, the first feature being "above", "over" and "on top of" the second feature may be that the first feature is directly above or obliquely above the second feature, or simply means that the first feature has a higher horizontal height than the second feature. The first feature being "under", "beneath" and "underneath" the second feature may be that the first feature is directly below or obliquely below the second feature, or simply means that the first feature has a lower horizontal height than the second feature.

[0034] Please refer to Figures 2 to 8 , the present invention discloses a novel rotary reactor, which comprises: a housing 203, a first container 201, a second container 202, a heat exchange tube 204 and a rotating shaft.

[0035] The first container 201 includes a first perforated cone 221 and a first cover 231 that are connected and communicate with each other, and the second container 202 includes a second perforated cone 222 and a second cover 232 that are connected and communicate with each other.

[0036] Among them, the first perforated cone 221 and the first cover 231 enclose a container structure, and the second perforated cone 222 and the second cover 232 enclose a container structure. Both the first perforated cone 221 and the second perforated cone 222 are perforated cones, and a number of mounting holes are provided on the conical surfaces of the cones.

[0037] The first container 201 and the second container 202 are connected and communicate with each other through a number of heat exchange tubes 204. Optionally, in this embodiment, the two ends of the heat exchange tube 204 are respectively installed on the mounting holes of the first perforated cone 221 and the second perforated cone 222.

[0038] Furthermore, a feed inlet 2311 is provided on the first cover body 231, and a discharge outlet 2321 is provided on the second cover body 232. Preferably, a feed valve 2061 is provided at the feed inlet 2311, and a discharge valve 2062 is provided at the discharge outlet 2321.

[0039] Furthermore, a pressure sensor 207 and a temperature sensor 208 are provided on the first cover body 231.

[0040] The housing 203 surrounds the outer periphery of the heat exchange tube 204 and is connected to the first container 201 and the second container 202.

[0041] Specifically, the housing 203 has a cylindrical structure with openings at both ends, and the housing 203 is respectively connected to the outer walls of the first container 201 and the second container 202. The structure formed by the housing 203, the first container 201, the second container 202, and the heat exchange tube 204 is referred to as the kettle body.

[0042] The rotating shaft includes a first rotating shaft 211 and a second rotating shaft 212. The first rotating shaft 211 is connected to one outer side of the housing 203, and the second rotating shaft 212 is connected to the other outer side of the housing 203;

[0043] Among them, the second rotating shaft 212 is a tubular member and is in communication with the inside of the housing 203. An oil inlet pipe 205 is provided inside the second rotating shaft 212. The oil inlet pipe 205 extends into the inside of the housing 203. The gap between the second rotating shaft 212 and the oil inlet pipe 205 is the outflow pipeline.

[0044] Furthermore, a partition member is further included. The partition member includes a first partition 241, a second partition 242, and a side partition 209. The first partition 241 and the second partition 242 are arranged opposite to each other. The side partition 209 is respectively connected to the first partition 241 and the second partition 242. The first partition 241, the second partition 242, and the side partition 209 form a hollow shell structure. The heat exchange tube 204 passes through the shell structure, and the oil inlet pipe 205 extends into the shell structure.

[0045] Specifically, the first partition 241 faces the first perforated conical body 221 of the first container 201, the second partition 242 faces the second perforated conical body 222 of the second container 202, and both the first partition 241 and the second partition 242 are provided with through holes for installing the heat exchange tube 204. Optionally, the first partition 241 and the second partition 242 can be flat plates or other shaped plate structures. For example, in this embodiment, the first partition 241 and the second partition 242 are conical plates.

[0046] Furthermore, a first oil distributor 251 is provided at one end of the oil inlet pipe 205 located inside the shell structure. The first oil distributor 251 is an inlet oil distributor.

[0047] Further, a second oil distributor 252 and an oil outlet pipe 213 are also arranged inside the shell structure. One end of the oil outlet pipe 213 penetrates through the side partition plate 209, and the other end of the oil outlet pipe 213 is communicated with the second oil distributor 252. The second oil distributor 252 is an outlet oil distributor.

[0048] Optionally, in this embodiment, both the first oil distributor 251 and the second oil distributor 252 are hollow column structures, and a plurality of oil holes are arranged on the side walls of the hollow column structures. Both ends of the hollow column structures are sealed structures.

[0049] Further, a first bracket 261 and a second bracket 262 are further included. A first bearing seat 271 is arranged on the first bracket 261. A first bearing is arranged inside the first bearing seat 271. The first rotating shaft 211 is arranged in the first bearing. A second bearing seat 272 is arranged on the second bracket 262. A second bearing is arranged inside the second bearing seat 272. The second rotating shaft 212 is arranged in the second bearing. Among them, both the first bearing and the second bearing are prior arts and will not be elaborated here.

[0050] A driving structure is further arranged on the second bracket 262, and the driving structure can drive the second rotating shaft 212 to rotate.

[0051] Specifically, the driving structure includes a driving member 214, a first pulley 281, a second pulley 282, a belt 215, a first gear 291, a second gear 292 and a chain 216. The driving member 214 is drivingly connected with the first pulley 281. The belt 215 is sleeved on the first pulley 281 and the second pulley 282. The first gear 291 is installed on the second pulley 282. The chain 216 is meshed and connected with the first gear 291 and the second gear 292. A bearing is arranged inside the second gear 292, and the second rotating shaft 212 penetrates through the bearing. Optionally, the driving member 214 is a motor. Optionally, in this embodiment, the driving member 214 is axially connected with the first pulley 281. The height of the second pulley 282 is lower than the height of the first pulley 281. The height of the first gear 291 is lower than the height of the second gear 292. The plane where the belt 215 is located is perpendicular to the plane where the chain 216 is located. Therefore, a steering structure is arranged between the first gear 291 and the second pulley 282. The steering structure can be realized by using a gear set of the prior art and will not be elaborated here. Optionally, a speed reducer is arranged at the output end of the motor, and the speed reducer is axially connected with the first pulley 281.

[0052] The novel rotary reactor provided by the utility model controls the rotation of the second rotating shaft 212 through a driving structure. The rotation of the second rotating shaft 212 drives the rotation of the reactor body. When the reactor body rotates to make the first cover 231 on the top and the second cover 232 on the bottom, the feed valve 2061 is opened, and feeding is carried out from the feed port 2311. After the reaction is completed, the discharge valve 2062 is opened, and discharging is carried out from the discharge port 2321 by its own weight.

[0053] During the operation of the reactor, the rotation of the second rotating shaft 212 is controlled through the driving structure. The rotation of the second rotating shaft 212 drives the continuous rotation of the reactor body. Under the action of gravity, the material repeatedly flows between the first container 201 and the second container 202 through the heat exchange tube 204, realizing the rotary stirring function of the reactor. During heating, the heat-conducting oil enters the oil inlet pipe 205 from the oil inlet of the oil inlet pipe 205 and flows into the oil inlet cavity of the shell structure in the shell 203 all the time. The oil path is shunted by the first oil distributor 251. The heat-conducting oil then enters the oil outlet pipe 213 from the second oil distributor 252 in the shell structure, and then flows out of the shell structure to the oil outlet cavity, and finally flows to the outlet pipe and flows out of the second rotating shaft 212. Among them, the oil inlet cavity is a space composed of the first partition plate 241, the second partition plate 242 and the side partition plate 209, and the oil outlet cavity is a space composed of the first perforated cone 221, the second perforated cone 222 and the inner wall of the shell 203. During the flow of the heat-conducting oil, heat is transferred to the reaction material through the heat exchange tube 204 and the first perforated cone 221 and the second perforated cone 222. During the heating process, the temperature sensor 208 and the pressure sensor 207 detect the temperature and pressure inside the equipment in real time, so as to control the progress of the reaction.

[0054] A novel rotary reactor provided by the utility model connects the first container 201 and the second container 202 through the heat exchange tube 204, and drives the rotation of the reactor through the rotation of the first rotating shaft 211 and the second rotating shaft 212, so that the material keeps turning in the reactor. The heat-conducting oil enters the reactor from the second rotating shaft 212 and then flows out of the second rotating shaft 212, adopting a completely different concept from the traditional reactor, canceling the use of the magnetic coupling 104 and the stirrer 105, and no longer having the problems existing in the previous traditional reactor.

[0055] Specifically, the beneficial effects of the novel rotary reactor provided by the utility model are as follows:

[0056] One of the main structural features is that it has a unique heating chamber structure. The first container 201 and the second container 202 are connected by a dense heat exchange tube 204. In the heating chamber, there are a first partition 241 and a second partition 242. The heating chamber is separated into an oil inlet chamber and an oil outlet chamber by the first partition 241 and the second partition 242, so as to control the flow direction of the heat transfer oil. The inlet oil distributor and the outlet oil distributor are designed with fluid damping to fill the heating chamber with heat transfer oil. The design of multiple groups of vertical heat exchange tubes 204 effectively increases the heat exchange area and improves the heat exchange efficiency. The outermost layer is a heat insulation and adiabatic layer to prevent heat dissipation.

[0057] Another main structural feature is that the invention has a unique material bin structure. The material bin is composed of a first container 201, a heat exchange tube 204 and a second container 202. The overall structure is in the shape of an hourglass. During the rotation of the material bin, the reactants flow back and forth between the first container 201 and the second container 202 under the action of gravity, realizing the stirring function. Since there is no stirring paddle relying on gravity, the erosion and wear of the material stirring are eliminated. The angles of the first container 201 and the second container 202 depend on the natural retention angle of the material. The value range of different materials is 40° to 70°.

[0058] The third main structural feature is that it has a reasonable reaction kettle rotation mechanism. The reaction kettle and the rotating shaft are connected by bolts, and the reaction kettle can be easily disassembled and maintained as a whole. The motor drives the reducer through a pulley to reduce the speed and increase the torque. The reducer drives the shaft to rotate through a sprocket mechanism. At the same time, the motor is equipped with a frequency conversion device to achieve stepless speed regulation.

[0059] The fourth main structural feature is that the inner wall structure of the reaction kettle is simple and convenient for coating treatment. For example, the body material can be selected as conventional 304. Coating with inert coatings such as Teflon can achieve anti-corrosion of acids and alkalis, and coating with tungsten carbide can achieve the functions of anti-corrosion and wear resistance, etc., greatly reducing the equipment cost.

[0060] The shell 203 of the kettle body, the first container 201, the second container 202 and the heat exchange tube 204 are connected by structures such as bolts and can be easily disassembled for convenient cleaning.

[0061] The technical features of the above embodiments can be combined arbitrarily. For the sake of concise description, not all possible combinations of the technical features in the above embodiments are described. However, as long as the combinations of these technical features do not conflict, they should be considered as within the scope described in this specification.

[0062] The above embodiments only illustrate several implementation manners of the present utility model, and the description thereof is relatively specific and detailed. However, it should not be construed as a limitation to the scope of the patent of the present utility model. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several modifications and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the patent of the present utility model shall be subject to the appended claims.

Claims

1. A new type of rotary reactor, characterized in that, Comprising: A housing, a first container, a second container, heat exchange tubes and a rotating shaft; The first container and the second container are connected by a plurality of the heat exchange tubes. The housing surrounds the periphery of the heat exchange tubes and is connected to the first container and the second container. The rotating shaft includes a first rotating shaft and a second rotating shaft. The first rotating shaft is connected to one outer side of the housing, and the second rotating shaft is connected to the other outer side of the housing; Wherein, the second rotating shaft is a tubular member and is in communication with the interior of the housing. An oil inlet pipe is arranged inside the second rotating shaft, and the oil inlet pipe extends into the interior of the housing. The gap between the second rotating shaft and the oil inlet pipe is an outflow pipe.

2. The novel rotary reactor according to claim 1, wherein, It further includes a partition member. The partition member includes a first partition, a second partition and side partitions. The first partition and the second partition are arranged opposite to each other. The side partitions are respectively connected to the first partition and the second partition. The first partition, the second partition and the side partitions form a hollow shell structure inside. The heat exchange tubes pass through the shell structure, and the oil inlet pipe extends into the shell structure.

3. The novel rotary reactor according to claim 2, characterized in that, A first oil distributor is arranged at one end of the oil inlet pipe located inside the shell structure.

4. The novel rotary reactor according to claim 3, characterized in that, A second oil distributor and an oil outlet pipe are further arranged inside the shell structure. One end of the oil outlet pipe penetrates through the side partition, and the other end of the oil outlet pipe is in communication with the second oil distributor.

5. The novel rotary reactor according to claim 1, characterized in that, The first container includes a first perforated cone body and a first cover body which are connected in communication. The second container includes a second perforated cone body and a second cover body which are connected in communication. Two ends of the heat exchange tubes are respectively installed on the first perforated cone body and the second perforated cone body. A feed port is arranged on the first cover body, and a discharge port is arranged on the second cover body.

6. The novel rotary reactor according to claim 5, characterized in that, A pressure sensor and a temperature sensor are arranged on the first cover body.

7. The novel rotary reactor according to any one of claims 1 to 6, characterized in that, It further includes a first bracket and a second bracket. A first bearing seat is arranged on the first bracket, a first bearing is arranged inside the first bearing seat, the first rotating shaft is arranged in the first bearing. The second bracket is provided with a second bearing seat, a second bearing is arranged inside the second bearing seat, and the second rotating shaft is arranged in the second bearing.

8. The novel rotary reactor according to claim 7, characterized in that, A driving structure is further arranged on the second bracket, and the driving structure can drive the second rotating shaft to rotate.

9. The novel rotary reactor according to claim 8, characterized in that, The driving structure includes a driving member, a first pulley, a second pulley, a belt, a first gear, a second gear and a chain. The driving member is drivingly connected to the first pulley. The belt is sleeved on the first pulley and the second pulley. The first gear is installed on the second pulley. The chain is meshed with the first gear and the second gear. A bearing is arranged inside the second gear, and the second rotating shaft passes through the bearing.

10. The novel rotary reactor according to claim 9, characterized in that, A steering structure is arranged between the first gear and the second pulley.

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