Catalytic reaction device for sinomenine hydrochloride production sewage

Abstract

The invention discloses a catalytic reaction device for sinomenine hydrochloride production sewage, and belongs to the technical field of chemical sewage treatment.The catalytic reaction device comprises a tank body, a cover body is arranged at the top of the tank body in a sealed mode, a pressure detector is arranged at the top of the cover body, and the pressure detector is connected with a controller; a chemical injection device for injecting chemicals into the tank body is arranged on the outer side of the tank body, the chemical injection device comprises a chemical injection tank which is mutually fixed with the tank body, a first pipeline communicated with the tank body is arranged at the top of the chemical injection tank, and a second pipeline communicated with the tank body is arranged at the bottom of the chemical injection tank; in the reaction process, the pressure in the tank body pushes chemicals in the chemical injection tank to be injected into the tank body in an accelerated mode, a first control valve connected with the controller is arranged on the second pipeline, and the first control valve controls the opening degree of the second pipeline. The method is used for effectively controlling the oxidation-reduction reaction of sewage generated in the preparation process of sinomenine hydrochloride and improving the reaction safety under the condition that the reaction is normally carried out.

Description

Technical Field

[0001] The invention belongs to the technical field of chemical wastewater treatment, and in particular relates to a catalytic reaction device for sinomenine hydrochloride production wastewater. Background Art

[0002] Sinomenine hydrochloride is a drug clinically used to treat rheumatic and rheumatoid arthritis and other diseases. Sinomenine has an extremely complex preparation process during its preparation, and a certain amount of sewage will be generated in each link, especially in the percolation, extraction and decarbonization stages. The generated sewage contains many toxic and harmful substances, which need to be treated to meet the pharmaceutical sewage discharge standards before they can be discharged. For example, a method and system for treating sewage produced by Sinomenine hydrochloride disclosed in the invention patent CN110117137B provides a method for treating pharmaceutical sewage. In the entire sewage treatment process, the catalytic reduction reaction treatment of sewage is a key control process. The reaction equation of this process is: CHCl3+H2O2=HCl+H2O+COCl2, COCl2+H2O=2HCl+CO2. Since the reaction is very rapid and a toxic substance such as COCl2 is generated during the reaction, it is hoped that a device dedicated to the catalytic reduction reaction can be proposed to effectively control the reaction and reduce the diffusion of toxic substances. Summary of the invention

[0003] In view of the above problems, the present invention provides a catalytic reaction device for wastewater produced by sinomenine hydrochloride, which is used to solve the problem of effectively controlling the redox reaction of the wastewater generated in the preparation process of sinomenine hydrochloride, and improving the safety of the reaction while ensuring the normal progress of the reaction.

[0004] To achieve the above object, the technical solution adopted by the present invention is:

[0005] A catalytic reaction device for treating wastewater produced by sinomenine hydrochloride, comprising a tank body, a cover body being sealed on the top of the tank body, a pressure detector being arranged on the top of the cover body, and the pressure detector being connected to a controller;

[0006] The outer side of the tank body is provided with a medicine injection device for injecting medicine into the tank body, the medicine injection device comprises a medicine injection tank fixed to the tank body, a first pipe connected to the tank body is provided on the top of the medicine injection tank, and a second pipe connected to the tank body is provided on the bottom of the medicine injection tank;

[0007] During the reaction process, the internal pressure of the tank body pushes the medicine in the medicine injection tank to be injected into the tank body at an accelerated speed. A first control valve connected to the controller is provided on the second pipeline, and the first control valve controls the opening and closing degree of the second pipeline.

[0008] As a further improvement of the above solution, a third pipeline is provided on the top of the cover body, and the third pipeline is respectively connected to a pressure source for injecting pressure into the tank body and an energy storage device for relieving pressure in the tank body;

[0009] The tank body is also provided with a fourth pipeline, and the fourth pipeline is provided with a second control valve.

[0010] As a further improvement of the above solution, a flow guide is provided inside the tank body, and a lifting device is connected to the flow guide to drive the flow guide to move up and down;

[0011] A wrapping piece is detachably arranged in the guide piece, and a catalyst is installed inside the wrapping piece.

[0012] As a further improvement of the above solution, a fan blade is rotatably arranged on the flow guide, and the fan blade is connected to a driving source arranged on the cover body;

[0013] The guide member is in the shape of a vertically arranged tube, and when the fan blades rotate, the water flow in the guide member passes through the wrapping member from top to bottom and forms a ring flow that circulates inside and outside the guide member.

[0014] As a further improvement of the above solution, the second pipe extends into the end of the tank body and is connected to a drainage pipe, the lower end of the drainage pipe is provided with a bell mouth, and the upper end is provided with a plurality of fine holes.

[0015] As a further improvement of the above solution, a support plate for supporting the fan blades is provided inside the flow guide, the support plate has a plurality of first through holes for facilitating the passage of water, and a sleeve is provided on the support plate;

[0016] A movable plate is movably arranged on the sleeve, a plurality of second through holes are arranged on the movable plate, and a guide inclined groove is also arranged on the sleeve for guiding the movement of the movable plate. The movable plate and the bottom of the wrapping piece are fixed to each other, and a support rod is arranged on the top of the wrapping piece, and the support rod is detachably fixed between the guide piece and the sleeve.

[0017] As a further improvement of the above solution, the wrapping piece is a cylindrical network structure, and a spring for pulling and contracting toward the middle is provided between the upper and lower top surfaces of the wrapping piece.

[0018] As a further improvement of the above solution, the wrapping piece has an upper and lower section, the upper section is cylindrical, and the lower section is cylindrical with grooves.

[0019] As a further improvement of the above scheme, the drug injection device also includes a drug storage tank, and a drug delivery pipe for facilitating the extraction of the medicine is arranged at the bottom of the drug storage tank. The outlet end of the drug delivery pipe is connected to a fifth pipeline interconnected with the drug injection tank, and a one-way valve is arranged on the fifth pipeline.

[0020] As a further improvement of the above solution, a spray pipe is provided at the bottom of the cover body.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] 1. The set medicine injection tank can be used as an intermediate transition equipment during medicine injection to avoid the risk of a sharp increase in pressure caused by a rapid reaction after the medicine is injected at one time. The first pipeline connects the medicine injection tank and the tank body to each other, and the injection speed of the medicine injection tank can be gradually increased through the pressure in the first pipeline. The set pressure detector is used to detect the pressure in the tank body. When the pressure change is too large, the controller will control the first control valve to reduce the supply of medicine, and vice versa. Therefore, the injection can be adjusted according to the real-time pressure change of the reaction to ensure the safety of the reaction.

[0023] 2. The high pressure of the reaction can be stored by the energy accumulator. After the reaction is completed, the pressure in the tank can be further increased by releasing the stored energy in the energy accumulator. After the second control valve is opened, the sewage after the reaction can be discharged to the outside through the fourth pipe. The pressure source is to supplement the pressure when the pressure is insufficient to ensure that all the sewage is sent out.

[0024] 3. The fan blades will drive the water flow around the guide piece from top to bottom and from inside to outside to form a circulating water flow during the rotation process. On the one hand, the chloroform in the chemical and sewage can be fully reacted. On the other hand, the flow of water from top to bottom can make the COCl2 produced by the reaction follow the water flow downward, thereby increasing the time of full contact with water and reducing overflow into the air. When the water flows through the drainage pipe, it will carry the chemical upward and enter the position of the package with the water flow to react.

[0025] 4. By setting the package into a network structure, the catalyst can be fully in contact with the water flow and the reagent, and under the action of the spring, the package has a tendency to be pulled to shrink toward the middle. The guide chute will guide the up and down movement of the movable plate, so that it can move up and down in a rotating posture. The fan blade driving source can also control the rotation speed of the fan blade to change the speed of the water flow. The water flow moves downward to impact the package and the movable plate, which can impact the movable plate downward, so that the movable plate can be reciprocated up and down, thereby driving the package to continuously twist and transform, so that the catalyst in the package can be activated, so that the chloroform in the water flow passing through the package can be reacted, thereby improving the degree of completeness of the reaction. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0027] Figure 2 for Figure 1 A schematic diagram of the local enlarged structure at point A in the middle;

[0028] Figure 3 for Figure 1 A schematic diagram of the local enlarged structure at B in the middle;

[0029] Figure 4 for Figure 1 A schematic diagram of the local enlarged structure at C in the middle;

[0030] Figure 5 This is a schematic diagram of the state of the package when the movable plate moves to the bottom;

[0031] Figure 6 for Figure 5 Schematic diagram of the cross-sectional structure in the middle DD direction;

[0032] Figure 7 for Figure 5 Schematic diagram of the cross-sectional structure in the EE direction;

[0033] Figure 8 A schematic diagram of another structure of a package;

[0034] Fig. 9 for Figure 8 Schematic diagram of the top view of the structure when the package is installed on the movable plate.

[0035] In the figure: 10, tank body; 11, cover body; 12, medicine injection tank; 13, first control valve; 14, first pipeline; 15, second pipeline; 16, pressure detector; 17, third pipeline; 18, pressure source; 19, accumulator; 20, fourth pipeline; 21, second control valve; 22, guide member; 23, wrapping member; 24, fan blade; 25, drainage pipe; 26, support plate; 27, sleeve; 28, movable plate; 29, guide chute; 30, support rod; 31, spring; 32, medicine storage tank; 33, medicine delivery pipe; 34, fifth pipeline; 35, spray pipe. DETAILED DESCRIPTION

[0036] In order to enable those skilled in the art to better understand the technical solution, the present invention is described in detail below in conjunction with embodiments. The description in this section is only exemplary and explanatory and should not have any limiting effect on the scope of protection of the present invention.

[0037] like Figure 1-9 As shown, the specific scheme of this embodiment is: a catalytic reaction device for treating wastewater produced by sinomenine hydrochloride, comprising a tank body 10, a cover body 11 is sealed on the top of the tank body 10, the cover body 11 is detachably arranged on the tank body 10, a pressure detector 16 is arranged on the top of the cover body 11, and the pressure detector 16 is connected to a controller, which adopts a PLC controller, and is arranged in an electric control box alone, for controlling the electrical components of the entire device;

[0038] The outer side of the tank body 10 is provided with a drug injection device for injecting medicine into the tank body 10, and the drug injection device includes a drug injection tank 12 fixed to each other between the tank body 10, and a first pipe 14 connected to the tank body 10 is provided on the top of the drug injection tank 12. Specifically, the first pipe 14 is a connecting pipe with a relatively small diameter, which is used to connect the drug injection tank 12 with the air pressure in the tank body 10. The drug injection device also includes a drug storage tank 32, and the bottom of the drug storage tank 32 is provided with a drug delivery pipe 33 for facilitating the extraction of the drug, and the outlet end of the drug delivery pipe 33 is connected to a fifth pipe 34 connected to the drug injection tank 12. A one-way valve is provided on the fifth pipe 34, and the drug in the drug storage tank 32 is extracted and injected into the drug injection tank 12 through the drug delivery pipe 33. The one-way valve on the fifth pipe 34 prevents the gas in the tank body 10 from flowing back into the drug delivery pipe 33;

[0039] The bottom of the injection tank 12 is provided with a second pipe 15 communicating with the tank body 10. Figure 1 As shown, the second pipe 15 is formed into a vertical through-structure in the tank body 10, so that the air pressure inside and outside the part of the second pipe 15 located in the tank body 10 can be connected, so that the medicine can be injected into the tank body 10 more easily;

[0040] During the reaction, carbon dioxide is produced and the air pressure in the tank body 10 increases. Therefore, the air pressure of the tank body 10 and the injection tank 12 is connected through the first pipe 14. The internal pressure of the tank body 10 drives the medicine in the injection tank 12 to be injected into the tank body 10 at an accelerated speed, thereby achieving the effect of automatically accelerating the injection of the medicine. However, in order to control the efficiency of the reaction and avoid the potential safety hazard caused by the vibration of the equipment due to the sudden increase in air pressure after the reaction, a first control valve 13 connected to the controller is provided on the second pipe 15. The first control valve 13 is specifically a solenoid valve. However, when no power is supplied, the first control valve 13 is normally open and The purpose of powering on is to control the normally open amount, thereby controlling the opening and closing degree of the second pipeline 15 through the first control valve 13 to control the amount of injected medicine. The pressure detected by the pressure detector 16 is analyzed within the PLC control. When the controller analyzes that the air pressure rises too fast or is too low within a period of time, it will control the first control valve 13 to adjust the action. Therefore, in this way, it is possible to control the dosing of the medicine and control the dosage according to the actual situation, so as to adjust and control the reaction in a dynamic situation, thereby improving the controllability of the reaction and the safety of the equipment.

[0041] like Figure 1 , 2As shown, as a preferred embodiment of the above embodiment, a third pipe 17 is provided on the top of the cover body 11, and the third pipe 17 is an air flow pipe. A control valve for controlling the on and off of the third pipe 17 is also provided on the third pipe 17. A pressure source 18 for injecting pressure into the tank body 10 and an accumulator 19 for relieving pressure in the tank body 10 are respectively connected to the third pipe 17. Specifically, the pressure source 18 is an air pump, and the accumulator 19 is mainly used to collect carbon dioxide generated after the reaction in the tank body 10, so as to realize the pressure storage after the reaction. A fourth pipe 20 is also provided on the tank body 10, and a second control valve 21 is provided on the fourth pipe 20. After the reaction is completed, by releasing the pressure in the accumulator 19, the sewage after the reaction in the tank body 10 can be pressed out under the action of pressure. The fourth pipe 20 is arranged in an upward "n"-shaped structure, which can prevent the solid matter in the sewage from being discharged with the liquid.

[0042] As a preferred embodiment of the above embodiment, a guide member 22 is arranged inside the tank body 10. Specifically, the guide member 22 is a vertically arranged tubular structure. A lifting device is connected to the guide member 22 to drive it to move up and down. Specifically, the lifting device includes a sliding rod slidably arranged between the cover body 11, and a driving source for driving the sliding rod to move up and down is arranged on the cover body 11. The driving source can be a driving element such as an electric push rod and a cylinder for linear driving; a wrapping member 23 is detachably arranged inside the guide member 22, and the wrapping member 23 is a mesh structure. A catalyst is installed inside the wrapping member 23, so that while the catalyst is fixed, the sewage and the agent are fully in contact with the catalyst to provide a better reaction effect. A spray pipe 35 is arranged at the bottom of the cover body 11 for spraying water mist into the tank body 10, so that after the reaction is completed, the guide member 22 and the wrapping member 23 can be driven to rise upward under the drive of the lifting device. The spray pipe 35 will clean the surface of the guide member 22 and the wrapping member 23 to reduce the corrosion of the generated HCl, and can also absorb the residual COCl2.

[0043] like Figure 1 , 3 , 4, 6, 7, 8, and 9, as a preferred embodiment of the above embodiment, the guide member 22 is internally rotatably provided with a fan blade 24, and the fan blade 24 is connected to a driving source provided on the cover body 11. Specifically, the driving source is a motor provided on the top of the cover body 11, and the motor is connected to a reducer. The output shaft of the reducer and the rotating shaft of the fan blade 24 are spline-matched with each other, so that during the rotation process, it can adapt to the activities of lifting up and down;

[0044] When the motor drives the fan blades 24 to rotate, the fan blades 24 disturb the water flow, causing the water flow in the guide member 22 to pass through the wrapping member 23 from top to bottom, and form an internal and external circulation loop around the guide member 22. Therefore, under the flowing water flow, as much chloroform as possible in the sewage can pass through the wrapping member 23 to contact the catalyst, so that the chloroform can be reacted more easily. Moreover, the water flow is from top to bottom, which can make the COCl2 generated in the reaction process flow downward, thereby increasing the contact time with water, reducing the diffusion into the air, and making the reaction safer.

[0045] As a preferred embodiment of the above embodiment, the second pipe 15 extends into the end of the tank body 10 and is connected to a drainage tube 25. The lower end of the drainage tube 25 is provided with a bell mouth, and the upper end is provided with a plurality of fine holes. The bell mouth is mainly provided to facilitate the water flow to flow upward on the outside of the guide member 22, so that it is easier to pass through the drainage tube 25. When the water flows through the drainage tube 25, the medicine in the drainage tube 25 will be brought out, and the fine holes at the upper end of the drainage tube 25 are more convenient for the diffusion of the medicine.

[0046] As a preferred embodiment of the above embodiment, a support plate 26 for supporting the fan blades 24 is provided inside the guide member 22. Figure 7 As shown, the support plate 26 has a plurality of first through holes for water to pass through, and a sleeve 27 is provided on the support plate 26. The sleeve 27 and the support plate 26 are fixed to each other, and the rotating shaft of the fan blade 24 passes through the sleeve 27 and is rotatably arranged between the sleeve 27. A quick-release joint is also provided above the sleeve 27 for facilitating mutual transmission between the fan blade 24 and the driving source. The quick-release joint can facilitate the replacement of the package 23;

[0047] The sleeve 27 is provided with a movable plate 28, and the movable plate 28 is provided with a plurality of second through holes, such as Figure 7 , 9 As shown, the sleeve 27 is also provided with a guide inclined groove 29 for guiding the movement of the movable plate 28. Under the guidance of the guide inclined groove 29, the movable plate 28 moves up and down in a rotating manner. The movable plate 28 is fixed to the bottom of the wrapping member 23, and a support rod 30 is provided on the top of the wrapping member 23. The support rod 30 is detachably fixed between the guide member 22 and the sleeve 27. Figure 3 , 6As shown, the support rod 30 mainly plays the role of fixing and supporting the top of the wrapping member 23. By stretching the top of the wrapping member 23, it is convenient for water to move downward through the wrapping member 23 to contact and react with the catalyst. Generally, the wrapping member 23 is a cylindrical network structure, and a spring 31 that pulls and contracts toward the middle is provided between the upper and lower top surfaces of the wrapping member 23. The catalyst is filled in the wrapping member 23, and the spring 31 can tighten the wrapping member 23 so that the wrapping member 23 holds the catalyst tightly. In addition, the wrapping member 23 can also be provided as follows Figure 8 Specifically, the wrapping member 23 of this structure has an upper and lower section, the upper section is cylindrical, and the lower section is a cylindrical shape with grooves. In the second structure, during the process of the spring 31 pulling and twisting upward, the grooved structure is twisted into a spiral shape, which plays a more guiding role in the water flow and makes the water flow have more impact on the wrapping member 23. However, when it moves to a straight groove shape, the impact force is reduced and it will rebound under the pull of the spring 31, so that there are more up and down fluctuations, so that the catalyst in the wrapping member 23 is easier to move; regardless of the above structure, because under normal circumstances, the tension of the spring 31 pulls the movable plate 28 upward, and the wrapping member 23 is compressed as follows Figure 1 The same state, that is, the middle is twisted, the internal space is compressed, the catalyst is held tightly, and the range of movement is small. The speed of the water flow can be changed by controlling the rotation speed of the fan blade 24. When the water flow speed is fast, the water flow can generate a downward thrust on the wrapping member 23 and the movable plate 28, so that the movable plate 28 can move downward, so that the wrapping member 23 can be rotated to the position as shown in the figure. Figure 5 state, thereby increasing the space in the package 23 and making it easier for the catalyst to move. Therefore, the frame can control the rotation speed of the fan blades 24 to make the package 23 change its shape up and down, thereby allowing the catalyst to move, especially during the reaction process, to ensure that chloroform can be fully reacted and improve the reaction quality.

[0048] The specific working principle of the present invention is as follows: first, the sewage to be treated is injected into the tank body 10, and then the fan blades 24 are controlled to rotate to drive the sewage to circulate in the tank body 10, and then the medicine delivery pipe 33 is controlled to extract the medicine in the medicine storage tank 32 according to the proportion, and then injected into the medicine injection tank 12;

[0049] The medicine injected into the medicine injection tank 12 will automatically pass through the first control valve 13, and enter the sewage through the second pipe 15 and the drainage pipe 25. When passing through the catalyst in the package 23, it accelerates the reaction with the chloroform in the sewage. The carbon dioxide produced at the end of the reaction is collected by the energy storage device 19. The rise and fall of the air pressure in the tank body 10 is detected by the pressure detector 16 and then transmitted to the controller. The controller controls the opening and closing degree of the first control valve 13, and automatically controls the injected medicine, thereby automatically controlling the speed of the reaction.

[0050] After the reaction is completed, the second control valve 21 is opened and the stored pressure in the accumulator 19 is released, and the reacted sewage in the tank body 10 is sent out through the fourth pipe 20. When the pressure is insufficient, the pressure is increased by the pressure source 18 to send the sewage out, and then prepare for the next reaction.

[0051] It should be noted that, in this article, the terms include, contain or any other variant thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. Specific examples are used in this article to illustrate the principle and implementation of the technical solution of the present invention. The above examples are only used to help understand the method of the present invention and its core idea. The above is only a preferred implementation of the present invention. It should be pointed out that due to the limitations of textual expression and the objective existence of infinite specific structures, for ordinary technicians in this technical field, without departing from the principle of the present invention, several improvements, modifications or changes can be made, and the above technical features can also be combined in an appropriate manner; these improvements, modifications, changes or combinations, or the direct application of the concept and technical solution of the invention to other occasions without improvement, should be regarded as the protection scope of the present invention.

Claims

1. A catalytic reaction device for treating wastewater from the production of sinomenine hydrochloride, characterized in that: It comprises a tank body (10), the top of the tank body (10) is sealed with a cover body (11), the top of the cover body (11) is provided with a pressure detector (16), and the pressure detector (16) is connected to a controller; A medicine injection device for injecting medicine into the tank body (10) is arranged on the outer side of the tank body (10), the medicine injection device comprises a medicine injection tank (12) fixed to the tank body (10), a first pipe (14) communicating with the tank body (10) is arranged on the top of the medicine injection tank (12), and a second pipe (15) communicating with the tank body (10) is arranged on the bottom of the medicine injection tank (12); During the reaction process, the internal pressure of the tank body (10) pushes the medicine in the medicine injection tank (12) to be injected into the tank body (10) at an accelerated speed. A first control valve (13) connected to a controller is provided on the second pipeline (15). The first control valve (13) controls the opening and closing degree of the second pipeline (15).

2. A catalytic reaction device for treating wastewater produced by sinomenine hydrochloride according to claim 1, characterized in that: A third pipe (17) is provided at the top of the cover body (11), and the third pipe (17) is respectively connected to a pressure source (18) for injecting pressure into the tank body (10) and an energy storage device (19) for relieving pressure in the tank body (10); The tank body (10) is also provided with a fourth pipeline (20), and the fourth pipeline (20) is provided with a second control valve (21).

3. A catalytic reaction device for treating wastewater produced by sinomenine hydrochloride according to claim 1, characterized in that: A flow guide (22) is arranged inside the tank body (10), and a lifting device for driving the flow guide (22) to move up and down is connected to the flow guide (22); A wrapping piece (23) is detachably arranged inside the flow guide piece (22), and a catalyst is contained inside the wrapping piece (23).

4. A catalytic reaction device for treating wastewater produced by sinomenine hydrochloride according to claim 3, characterized in that: The guide member (22) is provided with a fan blade (24) for rotation, and the fan blade (24) is connected to a driving source provided on the cover body (11); the guide member (22) is in the shape of a vertically arranged tube, and when the fan blade (24) rotates, water flow in the guide member (22) passes through the wrapping member (23) from top to bottom, and forms a circulation around the guide member (22) for internal and external circulation.

5. A catalytic reaction device for treating wastewater produced by sinomenine hydrochloride according to claim 4, characterized in that: The end of the second pipe (15) extending into the tank body (10) is connected to a drainage pipe (25) which is arranged thereon. The lower end of the drainage pipe (25) is provided with a bell mouth and the upper end is provided with a plurality of fine holes.

6. A catalytic reaction device for treating wastewater produced by sinomenine hydrochloride according to claim 4, characterized in that: A support plate (26) for supporting the fan blades (24) is provided inside the flow guide (22), the support plate (26) has a plurality of first through holes for facilitating the passage of water, and a sleeve (27) is provided on the support plate (26); A movable plate (28) is movably arranged on the sleeve (27), and a plurality of second through holes are arranged on the movable plate (28). The sleeve (27) is also provided with a guide inclined groove (29) for guiding the movement of the movable plate (28). The movable plate (28) and the bottom of the wrapping member (23) are fixed to each other, and a support rod (30) is arranged on the top of the wrapping member (23). The support rod (30) is detachably fixed between the guide member (22) and the sleeve (27).

7. A catalytic reaction device for treating wastewater produced by sinomenine hydrochloride according to claim 3, characterized in that: The wrapping piece (23) is a cylindrical network structure, and a spring (31) for pulling and contracting toward the middle is arranged between the upper and lower top surfaces of the wrapping piece (23).

8. A catalytic reaction device for treating wastewater produced by sinomenine hydrochloride according to claim 7, characterized in that: The wrapping piece (23) has an upper and a lower section, the upper section is cylindrical, and the lower section is cylindrical with grooves.

9. A catalytic reaction device for treating wastewater produced by sinomenine hydrochloride according to claim 1, characterized in that: The medicine injection device also includes a medicine storage tank (32). A medicine delivery pipe (33) is arranged at the bottom of the medicine storage tank (32) for facilitating the extraction of medicine. The outlet end of the medicine delivery pipe (33) is connected to a fifth pipeline (34) which is interconnected with the medicine injection tank (12). A one-way valve is arranged on the fifth pipeline (34).

10. A catalytic reaction device for treating wastewater produced by sinomenine hydrochloride according to any one of claims 1 to 9, characterized in that: A spray pipe (35) is provided at the bottom of the cover body (11).

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