Low-temperature catalytic reaction kettle

Abstract

The low-temperature catalytic reaction kettle comprises a reaction kettle body, the top of the reaction kettle body is fixedly connected with a water inlet pipe, a liquid wax inlet pipe and a chlorine inlet pipe, the water inlet pipe, the liquid wax inlet pipe and the chlorine inlet pipe are all communicated with the interior of the reaction kettle body, and the upper end of the side wall of the reaction kettle body is fixedly connected with a pressure relief pipe. The pressure relief pipe is communicated with the interior of the reaction kettle body, a pressure relief valve is arranged on the side wall of the pressure relief pipe, the top of the reaction kettle body is rotationally connected with a rotating pipe, and the bottom of the rotating pipe penetrates through the side walls of the top and the bottom of the reaction kettle body. Through mutual cooperation of the water guide pipe, the water suction pump, the stirring pipes, the connecting pipe and other parts, materials can be cooled in the reaction kettle, meanwhile, the materials can be stirred and cooled in the reaction kettle through cooperation of the multiple stirring pipes, the cooling efficiency of the materials is improved, and the production cost is reduced. And the phenomenon that the color is deepened due to material decomposition caused by high temperature is prevented, so that the processing quality of the materials is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of chlorinated paraffin production, in particular to a low-temperature catalytic reaction kettle. Background Art

[0002] Chlorinated paraffin is a chlorinated derivative of paraffin hydrocarbons. It has the advantages of low volatility, flame retardancy, good electrical insulation, and low price. It can be used as a flame retardant and polyvinyl chloride plasticizer. It is widely used in the production of cable materials, floor materials, hoses, artificial leather, rubber and other products. Chlorinated paraffin is a mixture of chlorinated alkanes obtained by chlorination reaction using liquid paraffin containing 95% straight-chain normal alkanes as raw materials. In order to avoid the phenomenon of product color deepening due to material decomposition caused by high temperature, it is necessary to prepare it through a low-temperature catalytic reaction device.

[0003] For example, the chlorinated paraffin low-temperature catalytic reactor with Chinese patent publication number CN215963565U includes a reactor body, the outer sleeve of the reactor body is provided with a cooling jacket, and a stirring and dispersing component is rotatably connected inside the reactor body, the cooling jacket is connected to an external coolant supply pipeline and a coolant return pipeline, the stirring and dispersing component is used to introduce chlorine into the lower part and bottom of the inner cavity of the reactor body, the driving mechanism is used to drive the stirring and dispersing component to efficiently stir the material in the reactor body, and the stirring and dispersing component is provided with side scrapers and bottom scrapers.

[0004] However, in the above scheme, the material in the reactor is cooled externally by the cooling jacket and then stirred. However, the material in the middle is still prone to overheating, which may cause the material to decompose and darken in color. It is inconvenient to cool the material inside the reactor, and the cooling efficiency is low. Utility Model Content

[0005] The utility model provides a low-temperature catalytic reaction kettle to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] A low-temperature catalytic reactor comprises a reactor body, wherein a water inlet pipe, a liquid wax inlet pipe and a chlorine gas inlet pipe are fixedly connected to the top of the reactor body, and the water inlet pipe, the liquid wax inlet pipe and the chlorine gas inlet pipe are all connected with the reactor body; a pressure relief pipe is fixedly connected to the upper end of the side wall of the reactor body, and the pressure relief pipe is connected with the reactor body; a pressure relief valve is arranged on the side wall of the pressure relief pipe; a rotating pipe is rotatably connected to the top of the reactor body, and the bottom of the rotating pipe passes through the top and bottom side walls of the reactor body; the outer ring side wall of the rotating pipe is rotatably connected to the top side wall and the bottom side wall of the reactor body through two first sealing bearings; a stirring device is arranged on the side wall of the rotating pipe; one end of the rotating pipe is connected with a water circulation cooling device; four supporting feet are fixedly connected to the bottom of the reactor body; a discharge pipe is fixedly connected to the lower end of the side wall of the reactor body, and the discharge pipe is connected with the reactor body; a valve is arranged on the side wall of the discharge pipe.

[0008] As a further improvement of the technical solution: the stirring device includes a motor, the motor is fixedly connected to the top side wall of the reactor body, the output shaft of the motor is fixedly connected to a driving bevel gear, the top outer ring side wall of the rotating tube is fixedly connected to a driven bevel gear, the driving bevel gear is meshingly connected with the driven bevel gear, the side wall of the rotating tube is fixedly connected to a plurality of stirring tubes, one end of each stirring tube is connected to the inside of the rotating tube, the plurality of stirring tubes are symmetrically arranged, one end of the plurality of stirring tubes on the left and right sides are fixedly connected to a connecting plate, water guiding cavities are opened in the two connecting plates, one end of the plurality of stirring tubes is connected to the corresponding water guiding cavities, and the plurality of stirring tubes are located in the reactor body.

[0009] As a further improvement of the technical solution: the side walls of the two connecting plates are fixedly connected with scrapers, and one end of the two scrapers is against the inner wall of the reactor body.

[0010] As a further improvement of the present technical solution: the water circulation cooling device comprises a drain pipe, one end of the drain pipe is rotatably connected to the bottom side wall of the rotating tube, one end of the drain pipe is fixedly connected to a water storage tank, the drain pipe is located at the upper end of the side wall of the water storage tank and is connected to the water storage tank, a water inlet nozzle is provided at the top of the water storage tank, a water suction pump is fixedly connected to the top of the water storage tank, the water suction end of the water suction pump penetrates the side wall of the water storage tank and extends to the bottom of the water storage tank, a connecting pipe is fixedly connected to the water outlet end of the water suction pump, a condenser is provided at one end of the connecting pipe, a mounting plate is fixedly connected to the bottom of the condenser, one end of the mounting plate is fixedly connected to the side wall of the reactor body, a water guide pipe is provided at the top of the condenser, one end of the water guide pipe is rotatably connected to the top side wall of the rotating tube, the drain pipe and the outer ring side wall of the water guide pipe are both rotatably connected to the inner ring side wall of the rotating tube through a second sealing bearing, a blocking block is fixedly connected to the inner ring side wall of the rotating tube, and the blocking block is located in the middle of a plurality of stirring tubes.

[0011] As a further improvement of the technical solution: the side wall of the bottom of the reactor body is arranged in an inclined shape.

[0012] As a further improvement of the technical solution: rubber pads are provided at the bottom of the four supporting feet.

[0013] Compared with the prior art, the beneficial effect of the utility model is that the device can cool the material inside the reactor through the mutual cooperation of the water guide pipe, the water suction pump, the stirring pipe, the connecting pipe and other components. At the same time, with the cooperation of multiple stirring pipes, the material can be stirred and cooled inside the reactor, thereby improving the cooling efficiency of the material, preventing the color deepening caused by the decomposition of the material due to high temperature, and thus improving the processing quality of the material.

[0014] The above description is only an overview of the technical solution of the utility model. In order to more clearly understand the technical means of the utility model and implement it according to the contents of the specification, the following is a detailed description of the preferred embodiment of the utility model with the accompanying drawings. The specific implementation method of the utility model is given in detail by the following embodiments and their drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present application. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0016] Figure 1 This is a front cross-sectional structural schematic diagram of a low-temperature catalytic reactor proposed by the utility model;

[0017] Figure 2This is a front view structural schematic diagram of a low-temperature catalytic reactor proposed by the utility model;

[0018] Figure 3 for Figure 1 Schematic diagram of the locally enlarged structure of A in the middle.

[0019] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0020] 1. Reactor body; 2. Scraper; 3. Connecting plate; 4. Sealing block; 5. Water guide chamber; 6. Stirring tube; 7. Rotating tube; 8. Valve; 9. Discharge pipe; 10. First sealed bearing; 11. Support foot; 12. Drain pipe; 13. Water storage tank; 14. Water inlet nozzle; 15. Suction pump; 16. Connecting pipe; 17. Mounting plate; 18. Condenser; 19. Water guide pipe; 20. Motor; 21. Water inlet pipe; 22. Liquid wax inlet pipe; 23. Chlorine inlet pipe; 24. Second sealed bearing; 25. Pressure relief pipe; 26. Driving bevel gear; 27. Driven bevel gear. DETAILED DESCRIPTION

[0021] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention. The present invention is described in more detail in the following paragraphs by way of example with reference to the accompanying drawings. It should be noted that the accompanying drawings are all in a very simplified form and are not in precise proportions, and are only used to facilitate and clearly assist in explaining the purpose of the embodiments of the present invention.

[0022] It should be noted that when a component is referred to as being "fixed to" another component, it may be directly on the other component or there may also be a component centered. When a component is considered to be "connected to" another component, it may be directly connected to the other component or there may also be a component centered. When a component is considered to be "set on" another component, it may be directly set on the other component or there may also be a component centered. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only.

[0023] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art in the technical field of the present invention. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more related listed items.

[0024] See also Figure 1-3In the embodiment of the utility model, a low-temperature catalytic reactor comprises a reactor body 1, a water inlet pipe 21, a liquid wax inlet pipe 22, and a chlorine gas inlet pipe 23 are fixedly connected to the top of the reactor body 1, the water inlet pipe 21, the liquid wax inlet pipe 22, and the chlorine gas inlet pipe 23 are all connected with the reactor body 1, and the water inlet pipe 21 can be conveniently introduced into the reactor body 1 through the arranged water inlet pipe 21, so as to clean the reactor body 1, a pressure relief pipe 25 is fixedly connected to the upper end of the side wall of the reactor body 1, and the pressure relief pipe 25 is connected with the reactor body 1, and the side wall of the pressure relief pipe 25 is provided with a pressure relief pipe 25. A valve is provided. A rotating tube 7 is rotatably connected to the top of the reactor body 1. The bottom of the rotating tube 7 passes through the top and bottom side walls of the reactor body 1. The outer ring side walls of the rotating tube 7 are rotatably connected to the top side wall and the bottom side wall of the reactor body 1 through two first sealing bearings 10. A stirring device is provided on the side wall of the rotating tube 7. One end of the rotating tube 7 is connected to a water circulation cooling device. Four supporting feet 11 are fixedly connected to the bottom of the reactor body 1. A discharge pipe 9 is fixedly connected to the lower end of the side wall of the reactor body 1. The discharge pipe 9 is connected to the reactor body 1. A valve 8 is provided on the side wall of the discharge pipe 9.

[0025] See also Figure 1-3 The stirring device includes a motor 20, which is fixedly connected to the top side wall of the reactor body 1. The output shaft of the motor 20 is fixedly connected to a driving bevel gear 26. A driven bevel gear 27 is fixedly connected to the top outer ring side wall of the rotating tube 7. The driving bevel gear 26 is meshed with the driven bevel gear 27. A plurality of stirring tubes 6 are fixedly connected to the side wall of the rotating tube 7. One end of each stirring tube 6 is connected to the inside of the rotating tube 7. The plurality of stirring tubes 6 are symmetrically arranged. One end of the plurality of stirring tubes 6 on the left and right sides is fixedly connected to a connecting plate 3. A water conducting cavity 5 is provided in each of the two connecting plates 3, one end of each of the multiple stirring tubes 6 is connected to the corresponding water conducting cavity 5, and each of the multiple stirring tubes 6 is located in the reactor body 1. By starting the motor 20, the motor 20 drives the active bevel gear 26 to rotate, and the active bevel gear 26 drives the rotating tube 7 to rotate through the driven bevel gear 27. The rotating tube 7 simultaneously drives the multiple stirring tubes 6 to rotate and the connecting plate 3 to rotate, thereby stirring the liquid paraffin and the chlorine gas, so that the liquid paraffin and the chlorine gas are fully mixed, so that the liquid paraffin and the chlorine gas can react better.

[0026] See also Figure 1 The side walls of the two connecting plates 3 are fixedly connected with scrapers 2, and one end of the two scrapers 2 is against the inner wall of the reactor body 1. The scrapers 2 can be driven to rotate at the same time when the connecting plates 3 rotate. The scrapers 2 can scrape the inner wall of the reactor body 1 when rotating, thereby preventing the material from adhering to the inner wall of the reactor body 1.

[0027] See also Figure 1-3The water circulation cooling device includes a drain pipe 12, one end of the drain pipe 12 is rotatably connected to the bottom side wall of the rotating tube 7, one end of the drain pipe 12 is fixedly connected to a water storage tank 13, the drain pipe 12 is located at the upper end of the side wall of the water storage tank 13 and is connected to the water storage tank 13, a water inlet nozzle 14 is provided at the top of the water storage tank 13, a water suction pump 15 is fixedly connected to the top of the water storage tank 13, the water suction end of the water suction pump 15 penetrates the side wall of the water storage tank 13 and extends to the bottom of the water storage tank 13, the water outlet end of the water suction pump 15 is fixedly connected to a connecting pipe 16, one end of the connecting pipe 16 is provided with a condenser 18, a mounting plate 17 is fixedly connected to the bottom of the condenser 18, one end of the mounting plate 17 is fixedly connected to the side wall of the reactor body 1, a water guide pipe 19 is provided at the top of the condenser 18, one end of the water guide pipe 19 is rotatably connected to the top side wall of the rotating tube 7, and the drain pipe 12 and the outer ring side wall of the water guide pipe 19 are both rotatably connected to the rotating tube 7 through a second sealing bearing 24. On the inner circle side wall of the moving tube 7, a blocking block 4 is fixedly connected to the inner circle side wall of the rotating tube 7. The blocking block 4 is located in the middle position of the multiple stirring tubes 6. The water suction pump 15 is started, and the water suction pump 15 sucks out the water source in the water storage tank 13 and introduces it into the condenser 18 through the connecting pipe 16. The water is cooled by the condenser 18 to make the water cold water, and then the cold water is introduced into the rotating tube 7 through the water guide pipe 19. Through the provided blocking block 4, the cold water flows through the multiple stirring tubes 6 on the upper side to the two connecting plates 3, and then flows through the two connecting plates 3 to the multiple stirring tubes 6 on the lower side, and finally flows through the multiple stirring tubes 6 on the lower side to the lower end of the rotating tube 7, and then flows back to the water storage tank 13 through the drain pipe 12. The cold water flows between the rotating tube 7, the two connecting plates 3 and the multiple stirring tubes 6, and the cold water can exchange heat with the high temperature generated by the reaction of liquid paraffin and chlorine, thereby cooling the liquid paraffin and chlorine.

[0028] See also Figure 1 The bottom side wall of the reactor body 1 is arranged in an inclined shape. When the catalyzed material needs to be discharged, the material can flow quickly along the inclined side wall to the discharge pipe 9 to reduce the residual material.

[0029] See also Figure 1-2 The bottoms of the four supporting feet 11 are all provided with rubber pads, and the vibration of the reactor body 1 during use can be reduced by providing the rubber pads.

[0030] The working principle of the utility model is as follows: first, liquid paraffin and chlorine are introduced into the reactor body 1 through the liquid paraffin inlet pipe 22 and the chlorine inlet pipe 23, and then the motor 20 is started, the motor 20 drives the active bevel gear 26 to rotate, the active bevel gear 26 drives the rotating tube 7 to rotate through the driven bevel gear 27, and the rotating tube 7 simultaneously drives the plurality of stirring tubes 6 to rotate and the connecting plate 3 to rotate, thereby stirring the liquid paraffin and the chlorine, making the liquid paraffin and the chlorine fully mixed, so that the liquid paraffin and the chlorine can react better, and at the same time, the water suction pump 15 is started, the water suction pump 15 sucks out the water source in the water storage tank 13, and introduces it into the condenser 18 through the connecting pipe 16, and the water is cooled by the condenser 18 , the water becomes cold water, and then the cold water is introduced into the rotating tube 7 through the water guide pipe 19, and the cold water is made to flow into the two connecting plates 3 through the blocking block 4 provided, and then flow into the multiple stirring tubes 6 on the lower side through the two connecting plates 3, and finally flow to the lower end of the rotating tube 7 through the multiple stirring tubes 6 on the lower side, and then flow back to the water storage tank 13 through the drain pipe 12. The cold water flows between the rotating tube 7, the two connecting plates 3 and the multiple stirring tubes 6, and the cold water can exchange heat with the high temperature generated by the reaction of liquid paraffin and chlorine, thereby cooling the liquid paraffin and chlorine, preventing the material from decomposing and darkening due to high temperature, thereby improving the processing quality of the material.

[0031] The above description is only a preferred embodiment of the utility model and does not impose any form of limitation on the utility model. Any ordinary technician in the industry can smoothly implement the utility model as shown in the drawings of the specification and described above. However, any equivalent changes, modifications and evolutions made by technicians familiar with the profession without departing from the scope of the technical solution of the utility model using the technical content disclosed above are all equivalent embodiments of the utility model. At the same time, any equivalent changes, modifications and evolutions made to the above embodiments based on the essential technology of the utility model are still within the protection scope of the technical solution of the utility model.

Claims

1. A low-temperature catalytic reactor, comprising a reactor body (1), characterized in that: The top of the reactor body (1) is fixedly connected with a water inlet pipe (21), a liquid wax inlet pipe (22), and a chlorine gas inlet pipe (23), and the water inlet pipe (21), the liquid wax inlet pipe (22), and the chlorine gas inlet pipe (23) are all connected with the inside of the reactor body (1). The upper end of the side wall of the reactor body (1) is fixedly connected with a pressure relief pipe (25), and the pressure relief pipe (25) is connected with the inside of the reactor body (1). A pressure relief valve is provided on the side wall of the pressure relief pipe (25). The top of the reactor body (1) is rotatably connected with a rotating pipe (7), and the bottom of the rotating pipe (7) penetrates the reactor body (1). 1), the outer ring side wall of the rotating tube (7) is rotatably connected to the top side wall and the bottom side wall of the reactor body (1) through two first sealing bearings (10), the side wall of the rotating tube (7) is provided with a stirring device, one end of the rotating tube (7) is connected to a water circulation cooling device, the bottom of the reactor body (1) is fixedly connected to four supporting legs (11), the lower end of the side wall of the reactor body (1) is fixedly connected to a discharge pipe (9), the discharge pipe (9) is connected to the inside of the reactor body (1), and the side wall of the discharge pipe (9) is provided with a valve (8).

2. A low-temperature catalytic reactor according to claim 1, characterized in that: The stirring device comprises a motor (20), the motor (20) being fixedly connected to the top side wall of the reactor body (1), the output shaft of the motor (20) being fixedly connected to a driving bevel gear (26), the top outer ring side wall of the rotating tube (7) being fixedly connected to a driven bevel gear (27), the driving bevel gear (26) being meshingly connected to the driven bevel gear (27), the side wall of the rotating tube (7) being fixedly connected to a plurality of stirring tubes (6), one end of each stirring tube (6) being connected to the inside of the rotating tube (7), the plurality of stirring tubes (6) being symmetrically arranged, one end of the plurality of stirring tubes (6) on the left and right sides being fixedly connected to a connecting plate (3), the two connecting plates (3) being provided with a water guide cavity (5), one end of the plurality of stirring tubes (6) being connected to the corresponding water guide cavity (5), and the plurality of stirring tubes (6) being located in the reactor body (1).

3. A low-temperature catalytic reactor according to claim 2, characterized in that: The side walls of the two connecting plates (3) are fixedly connected with scrapers (2), and one end of the two scrapers (2) is against the inner side wall of the reactor body (1).

4. A low-temperature catalytic reactor according to claim 2, characterized in that: The water circulation cooling device comprises a drainage pipe (12), one end of the drainage pipe (12) is rotatably connected to the bottom side wall of the rotating tube (7), one end of the drainage pipe (12) is fixedly connected to a water storage tank (13), the drainage pipe (12) is located at the upper end of the side wall of the water storage tank (13) and is connected to the inside of the water storage tank (13), a water inlet nozzle (14) is provided at the top of the water storage tank (13), a water suction pump (15) is fixedly connected to the top of the water storage tank (13), the water suction end of the water suction pump (15) passes through the side wall of the water storage tank (13) and extends to the bottom of the water storage tank (13), the water outlet end of the water suction pump (15) is fixedly connected to a connecting pipe (16), and the connecting pipe (16) is connected to the water outlet end of the water suction pump (15). A condenser (18) is provided at one end of the connecting pipe (16), a mounting plate (17) is fixedly connected to the bottom of the condenser (18), one end of the mounting plate (17) is fixedly connected to the side wall of the reactor body (1), a water pipe (19) is provided at the top of the condenser (18), one end of the water pipe (19) is rotatably connected to the top side wall of the rotating tube (7), the drain pipe (12) and the outer ring side wall of the water pipe (19) are both rotatably connected to the inner ring side wall of the rotating tube (7) through a second sealing bearing (24), a blocking block (4) is fixedly connected to the inner ring side wall of the rotating tube (7), and the blocking block (4) is located in the middle of the plurality of stirring tubes (6).

5. A low-temperature catalytic reactor according to claim 1, characterized in that: The side wall of the bottom of the reactor body (1) is arranged in an inclined shape.

6. A low-temperature catalytic reactor according to claim 1, characterized in that: The bottoms of the four supporting legs (11) are all provided with rubber pads.

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