Circulating chlorinated paraffin reaction kettle

Abstract

The utility model relates to the technical field of chemical production, in particular to a circulating chlorinated paraffin reaction kettle. The reaction kettle comprises a reaction kettle body, a feeding port is formed in the top of the reaction kettle body in a penetrating mode, a circulating pump is installed on the outer wall of one side of the reaction kettle body, a cleaning assembly is installed at the bottom of the reaction kettle body, the self-cleaning function of a filter screen is achieved by arranging the cleaning assembly, and a water tank and a water passing pipe provide a cleaning source for the filter screen and convey the cleaning source into a feeding pipe; a flushing space is formed by combining the on-off control of a butterfly valve for controlling fluid and the anti-backflow characteristic of a one-way valve, attachments on the surface of the filter screen are effectively removed, the filtering function of the filter screen is achieved, then the feeding pipe is prevented from being blocked again, cleaning can be completed in time without repeated manual disassembly in the cleaning process, and therefore it is ensured that the filter screen can be put into use rapidly; meanwhile, the water outlet pipe discharges waste materials, so that the occurrence of secondary blockage in the feeding pipe is reduced, and the influence of the use of the device on the reaction efficiency is reduced to the greatest extent.

Description

Technical Field

[0001] This utility model relates to the field of chemical production technology, and more specifically, to a circulating chlorinated paraffin reactor. Background Technology

[0002] The circulating chlorinated paraffin reactor is a process method that enhances the reaction process through an external circulation system. In this reaction, liquid paraffin reacts with chlorine gas in the reactor to produce chlorinated paraffin. To improve reaction efficiency and product quality, the reactants are drawn from the bottom of the reactor by a circulating pump, treated by an external heat exchanger or filter, and then sprayed back to the top of the reactor, forming a continuous circulation flow. This circulation mechanism not only enhances the contact efficiency between chlorine gas and paraffin but also reduces the occurrence of side reactions through dynamic temperature control, making it suitable for the industrial production of chlorinated paraffin with high chlorine content.

[0003] The circulating chlorinated paraffin reactor is the core equipment for realizing the circulating chlorinated paraffin reaction. It mainly consists of the reactor body, stirring device, circulating pump, and other parts. Through the forced conveying of the circulating pump and the synergistic action of the stirring device, the reactants are uniformly mixed in the reactor. This design significantly improves reaction efficiency, product uniformity, and equipment operation stability, making it a key piece of equipment in chlorinated paraffin production.

[0004] Existing reactor internal circulation systems are prone to pipe blockage after prolonged operation due to the accumulation of impurities or reaction byproducts in the materials. Although existing technologies use filters in the pipes, especially at the inlet of the circulation pump, to reduce blockage, and these filters are usually cleaned manually after use, the fixed pore size of the filters cannot dynamically adapt to the significant differences in particle size of byproducts generated at different reaction stages. These tiny particles and highly viscous liquid wax easily re-adhere to the filters, forming deposits that are difficult to remove, thus reducing the filter's function and causing re-blockage in the pipes. These filters with deposits need to be disassembled and cleaned again. If not cleaned in time, they will also cause secondary blockage. In view of this, we propose a circulating chlorinated paraffin reactor. Utility Model Content

[0005] The purpose of this invention is to provide a circulating chlorinated paraffin reactor to solve the problem that although filters are installed in the pipeline, especially in the pipeline at the inlet of the circulating pump, to filter impurities and reduce pipeline blockage, and the filters are usually cleaned manually after use, the fixed characteristics of the filter pore size cannot dynamically adapt to the by-product particles with significant differences in particle size generated at different reaction stages. These tiny particles and highly viscous liquid wax easily re-adhere to the filter, forming deposits that are difficult to remove, thus reducing the filter's function and causing re-blockage in the pipeline. These filters with deposits need to be disassembled and cleaned again. If they are not cleaned in time, they will also cause secondary blockage.

[0006] To achieve the above objectives, a circulating chlorinated paraffin reactor is provided, comprising a reactor body, an inlet installed through the top of the reactor body, a circulating pump installed on one side of the outer wall of the reactor body, a feed pipe and a discharge pipe respectively installed at the input and output ends of the circulating pump, and both the feed pipe and the discharge pipe communicate with the interior of the reactor body, a cleaning assembly installed at the bottom of the reactor body, the cleaning assembly including a one-way valve and a filter screen disposed on the inner wall of the feed pipe, with the filter screen located below the one-way valve, a water outlet pipe inserted through the lower part of the feed pipe, a butterfly valve disposed at the middle position of the water outlet pipe, a water tank disposed at the bottom of the reactor body, a water pipe inserted through one side of the water tank, and one end of the water pipe communicating with the feed pipe.

[0007] As a further improvement to this technical solution, a stirring element is installed at the top center of the reactor body.

[0008] As a further improvement to this technical solution, a gas absorption chamber is installed on the outer wall of the reactor body on the side opposite to the circulating pump, and the gas absorption chamber is set with a conical bottom.

[0009] As a further improvement to this technical solution, the bottom and top of the gas absorption chamber are respectively connected by an intake pipe and an outlet pipe, and the intake pipe and the outlet pipe are connected to the reaction vessel body.

[0010] As a further improvement to this technical solution, the top cover of the feed inlet is provided with a sealing cover.

[0011] As a further improvement to this technical solution, the water pipe is set at a certain angle to the horizontal plane.

[0012] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0013] This circulating chlorinated paraffin reactor achieves a self-cleaning function for the filter screen through a cleaning assembly. The water tank and water pipe provide the cleaning source to the feed pipe, and the combination of the butterfly valve controlling the flow and the one-way valve preventing backflow creates a rinsing space that effectively removes deposits from the filter screen surface, ensuring the filter screen's filtration function and reducing the risk of re-clogging of the feed pipe. The cleaning process can be completed quickly without multiple manual disassemblies, ensuring the filter screen can be put into use immediately and significantly shortening maintenance time. At the same time, the water outlet pipe discharges waste, reducing the occurrence of secondary blockages inside the feed pipe and minimizing the impact of the equipment's use on the reaction efficiency. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0015] Figure 2 This is an exploded view of a partial structure of the present invention;

[0016] Figure 3 This is an exploded view of a partial structure of the cleaning component of this utility model;

[0017] Figure 4 This is a side view of the gas absorption chamber of this utility model.

[0018] The meanings of the labels in the diagram are as follows:

[0019] 1. Reactor body; 11. Feed inlet; 12. Stirring component; 13. Gas absorption chamber; 14. Circulating pump; 15. Discharge pipe; 16. Feeding pipe; 17. Gas outlet pipe; 18. Gas suction pipe; 2. Cleaning assembly; 21. Water tank; 22. Water pipe; 23. Water outlet pipe; 24. Butterfly valve; 25. Filter screen; 26. Check valve. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0022] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0023] Please see Figures 1-3 As shown, the purpose of this embodiment is to provide a circulating chlorinated paraffin reactor, including...

[0024] The reactor body 1 has a feed inlet 11 installed through its top. A circulation pump 14 is installed on one side of the outer wall of the reactor body 1. A feed pipe 16 and a discharge pipe 15 are respectively installed at the input and output ends of the circulation pump 14, and both the discharge pipe 16 and the feed pipe 15 communicate with the interior of the reactor body 1. A cleaning assembly 2 is installed at the bottom of the reactor body 1. The cleaning assembly 2 includes a one-way valve 26 and a filter screen 25 installed inside the feed pipe 16, with the filter screen 25 located below the one-way valve 26. A water outlet pipe 23 is inserted through the lower part of the feed pipe 16, and a butterfly valve 24 is installed in the middle of the water outlet pipe 23. A water tank 21 is installed at the bottom of the reactor body 1, and a water tank 21 is installed on one side of the water tank 21. A water pipe 22 is inserted, and one end of the water pipe 22 is connected to the feed pipe 16. The feed pipe 16 and the discharge pipe 15 are respectively installed at the input and output ends of the circulation pump 14. Both the discharge pipe 15 and the feed pipe 16 are connected to the inside of the reactor body 1. The circulation pump 14 can circulate the material and ensure that the liquid wax is drawn out from the bottom of the reactor body 1. The setting of the feed pipe 16 and the discharge pipe 15 ensures the formation of circulation. The filter screen 25 is located below the one-way valve 26, which can ensure that the cleaning liquid thoroughly cleans the filter screen 25 and improves the cleaning efficiency. The filter screen 25 is set inside the feed pipe 16 to filter impurities in the material first, thereby reducing the blockage caused by products in the subsequent circulation reaction.

[0025] Please see Figure 1 and Figure 4As shown, a gas absorption chamber 13 is installed on the outer wall of the reactor body 1 on the side opposite to the circulating pump 14. The gas absorption chamber 13 has a conical bottom. The conical bottom can hold a certain volume of absorbent, ensuring that hydrogen chloride can fully react and absorb with the absorbent inside the gas absorption chamber 13, reducing the re-flow of waste gas into the reactor body 1.

[0026] Please see Figure 1 As shown, the top cover of the feed inlet 11 is equipped with a sealing cover, which can ensure the airtightness of the device during the reaction process.

[0027] Please see Figure 2 As shown, the water pipe 22 is set at a certain angle to the horizontal plane, which allows the cleaning fluid to flow more smoothly along the water pipe 22.

[0028] The working principle of this solution is as follows: The user introduces liquid paraffin and chlorine into the reactor body 1 through the inlet 11. The circulating pump 14 draws the material from the bottom of the reactor body 1 through the feed pipe 16. The material flows along the feed pipe 16 to the circulating pump 14. After the temperature is adjusted by the reactor body 1, it is injected back into the reactor body 1 through the outlet pipe 15, forming a forced circulation flow to promote full contact between chlorine and paraffin. The agitator 12 is started and continuously agitates the material to ensure uniform reaction. The waste gas generated during the reaction enters the gas absorption chamber 13 through the suction pipe 18. The gas absorption chamber 13 quickly separates the unreacted chlorine and hydrogen chloride gas. The recovered chlorine enters the reactor body 1 again through the outlet pipe 17 to carry out the chlorination of paraffin.

[0029] After the reaction is complete, the user injects cleaning fluid into the water tank 21. The cleaning fluid, under gravity, flows from the water tank 21 through the inclined water pipe 22 into the feed pipe 16. The one-way valve 26, with its unidirectional conduction characteristic, allows the cleaning fluid to flow only along the feed pipe 16 towards the bottom of the reactor body 1, while preventing backflow and ensuring the directionality of the cleaning path. When the butterfly valve 24 is closed, the feed pipe 16 is a closed space formed by the one-way valve 26 and the butterfly valve 24. As the cleaning fluid continues to be injected, the pressure in this space gradually increases, forcing the cleaning fluid to form a high-speed flow within the confined space. Turbulent flow exerts a strong scouring effect on the surface of filter screen 25, effectively dissolving and mechanically peeling off sticky by-product particles and deposits attached to filter screen 25. After scouring, the user opens butterfly valve 24, instantly releasing the pressure in the closed chamber. The waste liquid carrying impurities and dissolved substances is quickly discharged through water outlet pipe 23 under pressure differential. This process achieves the self-cleaning function of filter screen 25 through dynamic pressure control and flow channel switching, avoiding secondary blockage of feed pipe 16 due to deposit residue. The entire process does not require manual disassembly of filter screen 25, significantly improving cleaning efficiency and the reliability of continuous equipment operation.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A circulating chlorinated paraffin reactor, characterized in that: The utility model relates to a reaction kettle, including reaction kettle body (1), the top of reaction kettle body (1) is installed through feed inlet (11), the outside wall of one side of reaction kettle body (1) is installed circulating pump (14), the input and output of circulating pump (14) are installed respectively feed pipe (16) and discharge pipe (15), and discharge pipe (15) and feed pipe (16) all and reaction kettle body (1) inside communicate, the bottom of reaction kettle body (1) is installed cleaning assembly (2), cleaning assembly (2) includes the one-way valve (26) with screen (25) of setting in the inner wall of feed pipe (16), and screen (25) is located below one-way valve (26), the lower part of feed pipe (16) is inserted through and is equipped with water outlet pipe (23), the middle position of water outlet pipe (23) is equipped with butterfly valve (24), the bottom of reaction kettle body (1) is equipped with water tank (21), one side of water tank (21) is inserted through and is equipped with water pipe (22), and one end of water pipe (22) and feed pipe (16) are through.

2. The cyclic chlorinated paraffin reactor according to claim 1, characterized in that: The top central position of the reaction kettle body (1) is provided with a stirring part (12).

3. The cyclic chlorinated paraffin reactor according to claim 1, characterized in that: The opposite side of the circulating pump (14) is provided with a gas absorption chamber (13) on the outer wall of the reaction kettle body (1), and the gas absorption chamber (13) is provided with a conical bottom.

4. The cyclic chlorinated paraffin reactor according to claim 3, characterized in that: The bottom end and the top end of the gas absorption chamber (13) are respectively provided with a gas suction pipe (18) and a gas outlet pipe (17), and the gas suction pipe (18) and the gas outlet pipe (17) are provided through the reaction kettle body (1).

5. The cyclic chlorinated paraffin reactor according to claim 1, wherein: The top of the feed inlet (11) is provided with a sealing cover.

6. The cyclic chlorinated paraffin reactor according to claim 1, wherein: The water pipe (22) is provided at a certain inclined angle with the horizontal plane.

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