A continuous production device for solid cation etherification agent

Abstract

A solid cation etherification agent continuous production device belongs to the technical field of etherification agent production and comprises a filtering, washing and drying all-in-one machine, a reaction kettle connected to the filtering, washing and drying all-in-one machine through a pipeline, a reused liquid outlet provided on the filtering, washing and drying all-in-one machine, a reused liquid inlet provided on the reaction kettle, and a reused liquid storage tank connected to the reused liquid outlet and the reused liquid inlet through pipelines, so that the reaction, filtering, washing and drying are organically connected through the pipelines and the reused liquid storage tank, the reaction kettle is responsible for the reaction process, the filtering, washing and drying all-in-one machine is responsible for subsequent treatment, and the two can operate synchronously, thereby breaking the limitation of sequential operation, realizing continuous production, and significantly improving production efficiency; meanwhile, the reused liquid storage tank can collect the reused liquid generated by the filtering, washing and drying all-in-one machine and deliver the reused liquid to the reaction kettle, thereby improving the reuse rate of the reaction solution and effectively reducing production cost.

Description

Technical Field

[0001] This utility model relates to the field of etherifying agent production technology, and in particular to a continuous production apparatus for solid cationic etherifying agents. Background Technology

[0002] Solid cationic etherifying agents are white solids at room temperature and pressure. They are hygroscopic and soluble in water. Solid cationic etherifying agents can react with various matrices such as starch, cellulose, guar gum, and polyacrylamide. They are widely used in the paper industry, daily chemical industry, petroleum industry, and water treatment industry.

[0003] To improve the production quality of solid cationic etherifying agents, a reaction vessel integrating pressure filtration, washing, and drying has been developed (such as publication number CN205886841U). This vessel combines reaction, pressure filtration, washing, and drying into one unit, producing uniform, high-purity, and high-quality solid cationic etherifying agents through pressure filtration, washing, and drying.

[0004] However, existing reaction vessels that integrate reaction, filtration, washing, and drying must be carried out sequentially and cannot be synchronized, making continuous production impossible, which seriously affects production efficiency. Furthermore, the reaction solution has a low reuse rate and high production costs. Utility Model Content

[0005] To address the technical problems in the existing reaction vessels that integrate reaction, filtration, washing, and drying, which cannot be carried out simultaneously with these processes, thus preventing continuous production and resulting in low reusability of the reaction solution and high production costs, this invention provides a continuous production device for solid cationic etherifying agents.

[0006] The technical solution of this utility model is as follows: This invention provides a continuous production device for solid cationic etherifying agents, including an integrated filtration, washing, and drying machine. The inlet of the integrated filtration, washing, and drying machine is connected to a reaction vessel via a pipeline. The integrated filtration, washing, and drying machine has a recycled liquid outlet, and the reaction vessel has a recycled liquid inlet. Both the recycled liquid outlet and the recycled liquid inlet are connected to a recycled liquid storage tank via pipelines. The reaction, filtration, washing, and drying processes are organically linked through pipelines and the recycled liquid storage tank. The reaction vessel focuses on the reaction process, while the integrated filtration, washing, and drying machine is responsible for subsequent processing. The two can operate synchronously, breaking the limitations of sequential operation and realizing continuous production, which can significantly improve production efficiency. At the same time, the recycled liquid storage tank can collect the recycled liquid generated by the integrated filtration, washing, and drying machine and transport it to the reaction vessel, improving the reuse rate of the reaction solution and effectively reducing production costs.

[0007] Preferably, the top of the reactor is fixedly connected to an epichlorohydrin feed pipe, a trimethylamine feed pipe, a recycled liquid inlet, and a dichloroethane feed port. By centrally setting all the feed pipes on the top of the reactor, it is easy to manage and operate them in a unified manner, which can reduce the chaos in the material conveying process, improve the efficiency and accuracy of the feeding process, and facilitate the observation and control of the feeding status of each material.

[0008] Preferably, the reactor is equipped with an external insulation layer and an internal stirring paddle connected to a motor at the top of the reactor. The insulation layer reduces heat loss from the reactor, maintains the required temperature environment for the reaction, and ensures the stable progress of the reaction. The stirring paddle rotates under the drive of the motor, which can fully stir the materials in the reactor, making the raw materials more uniform, improving the reaction rate and the completeness of the reaction, thereby improving the product quality.

[0009] Preferably, the bottom of the reactor is provided with a first discharge port, which is connected to the feed port of the integrated filter washing and drying machine through a pipeline. Setting a first discharge port at the bottom of the reactor facilitates the smooth discharge of materials after the reaction is completed. The material is directly connected to the feed port of the integrated filter washing and drying machine through a pipeline, which shortens the material conveying path, reduces material residue and loss, and ensures that the material can quickly enter the next processing stage.

[0010] Preferably, the feed inlet is located at the top of the integrated filter, wash and dry machine, and a second discharge outlet is located on one side of the bottom of the integrated filter, wash and dry machine. The recycled liquid outlet is located at the bottom of the integrated filter, wash and dry machine. The feed inlet is located at the top, which facilitates the material to enter the equipment from above and can be more evenly distributed in the processing area. The second discharge outlet at the bottom facilitates the discharge of the processed solid products, and the recycled liquid outlet at the bottom facilitates the flow of recycled liquid into the recycled liquid storage tank, thereby improving the smoothness of material flow in each stage.

[0011] Preferably, the recycled liquid storage tank is provided with an inlet at the top and an outlet at the bottom. The inlet is connected to the recycled liquid outlet through a pipeline, and the outlet is connected to the recycled liquid inlet through a pipeline. The connection between the inlet and the outlet allows for the smooth receipt of recycled liquid, while the connection between the outlet and the inlet facilitates the transport of recycled liquid to the reactor, ensuring the recycling of recycled liquid.

[0012] Preferably, a flow meter is installed on the pipeline connecting the outlet and the inlet of the recycled liquid. The flow meter can monitor the flow rate of the recycled liquid from the recycled liquid storage tank to the reactor in real time, which makes it easy to accurately adjust the amount of recycled liquid added according to the reaction requirements, ensure the stability of the solution volume in the reaction system, and facilitate the normal progress of the reaction.

[0013] Preferably, a detection unit is connected to the liquid outlet, and the detection unit is connected to a PLC controller. A regulating valve is installed on the epichlorohydrin feed pipeline, and the regulating valve is connected to the PLC controller. The detection unit can perform relevant tests such as component analysis on the recycled liquid discharged from the liquid outlet and transmit the test data to the PLC controller. The PLC controller can control the regulating valve on the epichlorohydrin feed pipeline according to preset parameters and test results, so as to achieve precise adjustment of the epichlorohydrin feed rate, make the ratio of reaction raw materials more reasonable, and further improve the reaction effect and product quality.

[0014] As can be seen from the above technical solutions, the advantages of this utility model are: 1. The reaction, filtration, washing, and drying processes are organically connected through pipelines and a recycled liquid storage tank. The reaction vessel focuses on the reaction process, while the integrated filtration, washing, and drying machine is responsible for subsequent processing. The two can operate synchronously, breaking the limitations of sequential operation and realizing continuous production, which can significantly improve production efficiency. At the same time, the recycled liquid storage tank can collect the recycled liquid generated by the integrated filtration, washing, and drying machine and transport it to the reaction vessel, improving the reuse rate of the reaction solution and effectively reducing production costs.

[0015] 2. A detection unit is connected to the outlet of the recycled liquid storage tank. The detection unit is connected to a PLC controller. A regulating valve is installed on the epichlorohydrin feed pipeline. The regulating valve is connected to the PLC controller. The detection unit can perform relevant tests such as component analysis on the recycled liquid discharged from the outlet and transmit the test data to the PLC controller. The PLC controller can control the regulating valve on the epichlorohydrin feed pipeline according to preset parameters and test results to achieve precise adjustment of the epichlorohydrin feed rate, making the ratio of reaction raw materials more reasonable and further improving the reaction effect and product quality. Attached Figure Description

[0016] To more clearly illustrate the technical solution of this utility model, the drawings used in the description will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the overall structure of a continuous production apparatus for solid cationic etherifying agent according to one or more embodiments of the present invention. The components represented by the various reference numerals in the diagram are: 1. Reactor; 11. Epichlorohydrin feed pipe; 12. Trimethylamine feed pipe; 13. Motor; 14. Recycled liquid inlet; 15. Dichloroethane feed port; 16. Insulation layer; 17. First discharge port; 18. Control valve; 2. Integrated filter, wash and dryer; 21. Feed port; 22. Second discharge port; 23. Recycled liquid outlet; 3. Recycled liquid storage tank; 31. Flow meter; 32. Liquid inlet; 33. Liquid outlet; 4. Detection unit; 5. PLC controller. Detailed Implementation

[0018] To make the objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings of the specific embodiments. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this patent, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this patent.

[0019] Example 1 In a typical embodiment of this utility model, such as Figure 1 As shown, a continuous production apparatus for solid cationic etherifying agents is proposed, comprising: a reaction vessel 1, a filtration, washing and drying integrated machine 2, and a recycled liquid storage tank 3. The reaction vessel 1 is used for the reaction production of solid cationic etherifying agents. The reaction vessel 1 is equipped with an epichlorohydrin feed pipe 11, a trimethylamine feed pipe 12, a dichloroethane feed inlet 15, a first discharge port 17, and a recycled liquid inlet 14. The filtration, washing and drying integrated machine 2 is equipped with a feed inlet 21, a second discharge port 22, and a recycled liquid outlet 23. The recycled liquid storage tank 3 includes a liquid inlet 32 ​​and a liquid outlet 33. The first discharge port 17 is connected to the feed inlet 21 via a pipeline. The solid cationic etherifying agent in the reactor 1 can be transported to the integrated filter, wash and dryer 2 through pipelines for filtration, washing and drying. The second discharge port 22 of the integrated filter, wash and dryer 2 is used to discharge the solid cationic etherifying agent after processing. The recycled liquid outlet 23 is connected to the inlet 32 ​​on the recycled liquid storage tank 3 through pipelines to realize the collection and storage of recycled liquid. The outlet 33 on the recycled liquid storage tank 3 is connected to the recycled liquid inlet 14 on the reactor 1 through pipelines to realize the repeated recycling of recycled liquid, thereby reducing the discharge of wastewater, saving raw materials, and meeting the requirements of green and low carbon.

[0020] like Figure 1As shown, a motor 13 is fixedly installed at the center of the top of the reactor 1. The output shaft of the motor 13 is fixedly connected to a stirring paddle, which is located inside the reactor 1. The motor 13 can stir the reaction solution in the reactor 1 through the stirring paddle. An epichlorohydrin inlet pipe 11 and a trimethylamine inlet pipe 12 are fixedly connected to the top of the reactor 1. A recycled liquid inlet 14 and a dichloroethane inlet 15 are also fixedly installed on the top of the reactor 1. The recycled liquid inlet 14 is used to connect to the recycled liquid storage tank 3, and the dichloroethane inlet 15 is used to add dichloroethane. The epichlorohydrin inlet pipe 11 and the trimethylamine inlet pipe 12 are located on one side of the motor 13, and the recycled liquid inlet 14 and the dichloroethane inlet 15 are located on the other side of the motor 13.

[0021] An insulation layer 16 is fixedly provided on the outside of the reactor 1 to ensure the stability of the internal temperature of the reactor 1. The first discharge port 17 is located at the bottom of the reactor 1 for discharging the mixture of solid cationic etherifying agent, dichloroethane and epichlorohydrin inside the reactor 1. The first discharge port 17 is connected to the inlet 21 of the filter washing and drying integrated machine 2 through a pipeline.

[0022] The integrated filter-washing-drying machine 2 is an existing device that integrates filtration, washing, and drying functions. The integrated filter-washing-drying machine 2 includes an inlet 21, a second outlet 22, and a recycled liquid outlet 23. The inlet 21 is located at the top of the integrated filter-washing-drying machine 2 and is connected to the first outlet 17 of the reaction vessel 1 through a pipeline to facilitate the delivery of solid cationic etherifying agent and mixed solution. The second outlet 22 is located on one side of the bottom of the integrated filter-washing-drying machine 2 for discharging the solid cationic etherifying agent after processing. The recycled liquid outlet 23 is located at the bottom of the integrated filter-washing-drying machine 2 for discharging the mixture of dichloroethane and epichlorohydrin. The recycled liquid outlet 23 is connected to the recycled liquid storage tank 3 through a pipeline.

[0023] The recycled liquid storage tank 3 includes an inlet 32 ​​and an outlet 33. The inlet 32 ​​is located at the top of the recycled liquid storage tank 3, and the outlet 33 is located at the bottom of the recycled liquid storage tank 3. The inlet 32 ​​is connected to the recycled liquid outlet 23 at the bottom of the integrated filter washing and drying machine 2 through a pipeline. The dichloroethane and epichlorohydrin mixture discharged from the integrated filter washing and drying machine 2 enters the recycled liquid storage tank 3 through the inlet 32. The outlet 33 is connected to the recycled liquid inlet 14 on the reactor 1 through a pipeline. The dichloroethane and epichlorohydrin mixture in the recycled liquid storage tank 3 can be circulated back into the reactor 1.

[0024] A flow meter 31 is installed on the pipeline connecting the liquid outlet 33 and the recycled liquid inlet 14 to monitor the flow rate of the dichloroethane and epichlorohydrin mixture flowing back into the reactor 1 online.

[0025] like Figure 1As shown, the outlet 33 is also connected to a detection unit 4. The detection unit 4 is used to perform online detection of the epichlorohydrin content in the dichloroethane and epichlorohydrin mixture discharged from the outlet 33. The detection unit 4 is connected to a PLC controller 5. A regulating valve 18 is installed on the epichlorohydrin feed pipe 11. The regulating valve 18 is a solenoid valve structure. The regulating valve 18 is connected to the PLC controller 5. The detection unit 4 can transmit data to the PLC controller 5, and the PLC controller 5 can control the regulating valve 18 to replenish the required amount of epichlorohydrin and complete the next cycle of reaction.

[0026] It is understandable that valves are installed on all connecting pipelines to control the opening and closing of the corresponding pipelines. The specific installation location can be determined according to the actual design requirements, and no further restrictions are imposed here.

[0027] The specific working principle is as follows: Dichloroethane and epichlorohydrin are fed into reactor 1 in a set ratio through dichloroethane inlet 15 and epichlorohydrin inlet pipe 11, respectively. Trimethylamine is slowly introduced in the required amount through trimethylamine inlet pipe 12. The reaction temperature inside the reactor is controlled by the insulation layer 16 to ensure that the temperature does not exceed 45°C during the reaction. The stirring paddle is rotated by motor 13 to accelerate the uniform mixing of materials in reactor 1. After the reaction is kept at a constant temperature, the mixture enters the integrated filter, wash and dryer 2 through the first outlet 17. After a series of operations including filtration, washing and drying, the solid cationic etherifying agent is discharged from the second outlet 22. The mixture of dichloroethane and epichlorohydrin enters the recycled liquid storage tank 3. The recycled liquid can flow back to the reactor through pipeline for the next reaction cycle. Since dichloroethane is consumed in zero quantities, it does not need to be replenished. However, epichlorohydrin partially participates in the reaction. After the recycled liquid is detected by the detection unit 4, the data is transmitted to the PLC controller 5. The PLC controller 5 then issues an instruction to the regulating valve 18 to replenish the required amount of epichlorohydrin and complete the reaction for the next cycle. The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A continuous production apparatus for a solid cationic etherifying agent, comprising: The integrated filter washing and drying machine (2) is characterized in that the feed inlet (21) of the integrated filter washing and drying machine (2) is connected to the reaction vessel (1) through a pipeline, the integrated filter washing and drying machine (2) is provided with a recycled liquid outlet (23), the reaction vessel (1) is provided with a recycled liquid inlet (14), and both the recycled liquid outlet (23) and the recycled liquid inlet (14) are connected to the recycled liquid storage tank (3) through pipelines.

2. The continuous production apparatus for solid cationic etherifying agent according to claim 1, characterized in that, The top of the reactor (1) is fixedly connected to an epichlorohydrin feed pipe (11), a trimethylamine feed pipe (12), a recycled liquid inlet (14), and a dichloroethane feed port (15).

3. The continuous production apparatus for solid cationic etherifying agent according to claim 1, characterized in that, The reactor (1) is provided with an insulation layer (16) on the outside and a stirring paddle is provided inside the reactor (1), and the stirring paddle is connected to the motor (13) on the top of the reactor (1).

4. The continuous production apparatus for solid cationic etherifying agent according to claim 1, characterized in that, The bottom of the reactor (1) is provided with a first discharge port (17), which is connected to the feed port (21) of the filter washing and drying integrated machine (2) through a pipeline.

5. The continuous production apparatus for solid cationic etherifying agent according to claim 1, characterized in that, The feed inlet (21) is located at the top of the filter washing and drying integrated machine (2), and the bottom side of the filter washing and drying integrated machine (2) is provided with a second discharge port (22). The recycled liquid outlet (23) is located at the bottom of the filter washing and drying integrated machine (2).

6. The continuous production apparatus for solid cationic etherifying agent according to claim 1, characterized in that, The top of the reuse liquid storage tank (3) is provided with an inlet (32) and the bottom is provided with an outlet (33). The inlet (32) is connected to the reuse liquid outlet (23) through a pipeline, and the outlet (33) is connected to the reuse liquid inlet (14) through a pipeline.

7. The continuous production apparatus for solid cationic etherifying agent according to claim 6, characterized in that, A flow meter (31) is installed on the pipeline connecting the liquid outlet (33) and the recycled liquid inlet (14).

8. The continuous production apparatus for solid cationic etherifying agent according to claim 6, characterized in that, The outlet (33) is connected to a detection unit (4), the detection unit (4) is connected to a PLC controller (5), and an regulating valve (18) is installed on the epichlorohydrin feed pipe (11), the regulating valve (18) is connected to the PLC controller (5).

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