A dispersant control device in a polyvinyl chloride production process

Abstract

The utility model relates to the field of polyvinyl chloride production technology discloses a kind of dispersing agent control device in polyvinyl chloride production process, including processing bucket, the inside of processing bucket is provided with mixing mechanism, the mixing mechanism is used to mix and stir the dispersing agent stored in processing bucket inside, the left side of processing bucket is provided with heating mechanism, the heating mechanism is used to heat and keep warm for dispersing agent, the mixing mechanism includes motor, the bottom end of motor is fixedly connected with the top end of processing bucket, the right side of motor is provided with driving assembly. In the utility model, start motor, driving shaft rotates, drive bevel gear one, bevel gear two rotation, bevel gear two drives transmission shaft to rotate, and further make support rotary plate rotate, support rotary plate let circular gear rotate under internal gear ring engagement, drive stirring rod, stirring vane rotation, the dispersing agent stored is stirred, and avoid precipitation separation.

Description

Technical Field

[0001] This utility model relates to the field of polyvinyl chloride (PVC) production technology, and in particular to a dispersant control device in the PVC production process. Background Technology

[0002] Polyvinyl chloride (PVC) is a widely used synthetic resin. Its structure is obtained by the polymerization reaction of vinyl chloride monomer. The presence of chlorine atoms in the molecular chain gives it both rigidity and flame retardancy. PVC appears as a white powder. Depending on the amount of plasticizer added, it can be divided into rigid PVC and flexible PVC. Rigid PVC has high strength and is resistant to chemical corrosion, and is often used for pipes, door and window profiles, and sheets. Flexible PVC, due to the addition of plasticizers, is soft and elastic, and is mostly used for films, wire and cable insulation layers, and artificial leather. Its advantages include low cost, good processing performance, and the ability to be molded through extrusion, injection molding, and calendering processes. It also has good weather resistance and electrical insulation. However, PVC has poor thermal stability, requiring the addition of stabilizers during processing, and may release harmful gases when burned. Therefore, a dispersant control device is needed to control the dispersant during the PVC production process.

[0003] Currently available dispersant control devices in PVC production mainly consist of a mixing unit, a driving unit, and a heating unit. When preparing the dispersant solution, this device precisely measures cold pure water and dispersant powder, dissolves them in a mixer, stores them in a tank, and then quantitatively injects them into the polymerization reactor according to process requirements. This ensures uniform dispersion of the dispersant, controls the morphology and particle size distribution of PVC resin particles, and improves resin quality. It is suitable for precise dispersant control in industrial-scale production. However, residual powder accumulates in the pipeline, affecting valve closure. To solve this problem, existing technologies only add a Y-type filter to the front end of the valve and periodically flush the pipeline through a drain valve, without improving the mixing and stirring structure. This results in insufficient turbulence intensity when the dispersant powder and water are mixed, causing the powder to easily clump and deposit. Furthermore, the tank agitator speed is too low to break up solution stratification, failing to meet usage requirements. Utility Model Content

[0004] To overcome the above deficiencies, this utility model provides a dispersant control device for the polyvinyl chloride production process, aiming to improve the problems in the prior art where the mixing and stirring structure has not been improved, resulting in insufficient turbulence intensity when dispersant powder is mixed with water, easy agglomeration and deposition of powder, and excessively low speed of the tank agitator, which fails to break up the solution stratification.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a dispersant control device for polyvinyl chloride production, comprising a processing tank, wherein a mixing mechanism is provided inside the processing tank for mixing and stirring the dispersant stored inside the processing tank, a heating mechanism is provided on the left side of the processing tank for heating and maintaining the temperature of the dispersant, the mixing mechanism includes a motor, the bottom end of the motor is fixedly connected to the top end of the processing tank, a drive assembly is provided on the right side of the motor, a transmission shaft is fixedly connected to the middle of the drive assembly, a rotating assembly is provided at the top of the outer wall of the transmission shaft, a mixing assembly is provided at the bottom end of the rotating assembly, and a cleaning assembly is provided on the right side of the transmission shaft.

[0006] As a further description of the above technical solution:

[0007] The heating mechanism includes a liquid storage tank. The right side of the liquid storage tank is fixedly connected to the left side of the outer wall of the processing tank. A heater is fixedly connected to the left side of the liquid storage tank. A water pump is fixedly connected to the top of the liquid storage tank. An inlet pipe is connected to the top of the water pump. A heat conduction pipe is connected to the other end of the inlet pipe. A drain pipe is connected to the other end of the heat conduction pipe. The other end of the drain pipe is connected to the front side of the liquid storage tank.

[0008] As a further description of the above technical solution:

[0009] The drive assembly includes a drive shaft, the left side of which is fixedly connected to the right side of the motor. A bevel gear one is fixedly connected to the right side of the outer wall of the drive shaft, and a bevel gear two is meshed with the bottom right side of the bevel gear one.

[0010] As a further description of the above technical solution:

[0011] The rotating assembly includes a supporting rotating plate, the middle of which is fixedly connected to the middle of the outer wall of the transmission shaft. Two circular gears are rotatably connected to the front and rear sides of the top of the supporting rotating plate, and an inner gear ring is meshed with the outer wall of the circular gear.

[0012] As a further description of the above technical solution:

[0013] The mixing assembly includes a stirring rod, the top of the outer wall of the stirring rod is fixedly connected to the middle of a circular gear, and multiple stirring blades are fixedly connected to the bottom of the outer wall of the stirring rod.

[0014] As a further description of the above technical solution:

[0015] The cleaning assembly includes a support bar, the left side of which is fixedly connected to the right side of the outer wall of the drive shaft, and the right side of which is fixedly connected to a cleaning bar.

[0016] As a further description of the above technical solution:

[0017] The bottom of each processing barrel is fixedly connected to multiple support legs, and the top of the front side of the outer wall of the processing barrel is connected to a feed pipe.

[0018] As a further description of the above technical solution:

[0019] The bottom rear side of the outer wall of the processing barrel is connected to a discharge pipe, and a fixing block is fixedly connected to the rear side of the motor.

[0020] This utility model has the following beneficial effects:

[0021] 1. In this utility model, when in use, the starting motor outputs power to rotate the drive shaft, which in turn drives the first bevel gear and the second bevel gear to rotate. The second bevel gear drives the transmission shaft to rotate, and the transmission shaft drives the support plate to rotate. The support plate causes the circular gear to rotate under the meshing of the inner gear ring. The circular gear drives the stirring rod and stirring blade to rotate, stirring the stored dispersant and preventing it from settling and separating. At the same time, the transmission shaft drives the support strip and cleaning strip to rotate, cleaning the inner wall of the treatment tank and preventing the dispersant from crystallizing on the inner wall.

[0022] 2. In this utility model, the heater is first started to heat the heat-conducting liquid in the storage tank, and then the water pump is started to input it into the heat-conducting pipe through the inlet pipe to keep the dispersant in the treatment tank warm and promote the uniform dispersion of the dispersant. The heat-conducting liquid after use is discharged back to the storage tank through the drain pipe to realize recycling and avoid resource waste. Attached Figure Description

[0023] Figure 1 This is a perspective view of the front side of the processing tank of a dispersant control device in the production process of polyvinyl chloride according to the present invention;

[0024] Figure 2 This is a structural diagram of the storage tank of a dispersant control device in the production process of polyvinyl chloride (PVC) proposed in this utility model;

[0025] Figure 3 This utility model provides a structural diagram of the motor of a dispersant control device in the production process of polyvinyl chloride.

[0026] Figure 4 This is a schematic diagram illustrating the internal gear ring structure of a dispersant control device in the production process of polyvinyl chloride (PVC) according to this utility model.

[0027] Figure 5 This is a schematic diagram of the water pump structure of a dispersant control device in the production process of polyvinyl chloride (PVC) proposed in this utility model.

[0028] Legend:

[0029] 1. Processing tank; 2. Mixing mechanism; 201. Motor; 202. Drive assembly; 2021. Drive shaft; 2022. Bevel gear one; 2023. Bevel gear two; 203. Transmission shaft; 204. Rotating assembly; 2041. Support plate; 2042. Circular gear; 2043. Internal gear ring; 205. Mixing assembly; 2051. Stirring rod; 2052. Stirring blade; 206. Cleaning assembly; 2061. Support bar; 2062. Cleaning bar; 3. Heating mechanism; 301. Storage tank; 302. Heater; 303. Water pump; 304. Inlet pipe; 305. Heat conduction pipe; 306. Drain pipe; 4. Support leg; 5. Feed pipe; 6. Discharge pipe; 7. Fixing block. Detailed Implementation

[0030] 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.

[0031] Please see the appendix Figure 1 - Appendix Figure 3 This utility model provides an embodiment of a dispersant control device for polyvinyl chloride (PVC) production, comprising a processing tank 1, with a mixing mechanism 2 inside the processing tank 1. The main function of the mixing mechanism 2 is to effectively mix and stir the dispersant stored inside the processing tank 1. A heating mechanism 3 is located on the left side of the processing tank 1, and the main function of the heating mechanism 3 is to heat and maintain the temperature of the dispersant to meet specific process requirements. The mixing mechanism 2 includes a motor 201, the bottom end of which is fixedly connected to the top end of the processing tank 1. A drive assembly 202 is located on the right side of the motor 201. 202 is responsible for transmitting the power generated by motor 201 to other parts. A drive shaft 203 is fixedly connected to the middle of the drive assembly 202. A rotating assembly 204 is provided at the top of the outer wall of the drive shaft 203. The function of the rotating assembly 204 is to transmit the rotational motion of the drive shaft 203 to the mixing assembly 205. The mixing assembly 205 is provided at the bottom of the rotating assembly 204. A cleaning assembly 206 is provided on the right side of the drive shaft 203. The main function of the cleaning assembly 206 is to ensure that no material residue or clumping occurs during the mixing process, thereby ensuring the uniformity of the mixing effect and the cleanliness of the inside of the processing tank 1.

[0032] Specifically, the processing tank 1 is equipped with a mixing mechanism 2. The main function of the mixing mechanism 2 is to effectively mix and stir the dispersant stored inside the processing tank 1. In order to ensure that the dispersant maintains an appropriate temperature during the processing, a heating mechanism 3 is specially equipped on the left side of the processing tank 1. The main function of the heating mechanism 3 is to heat and keep the dispersant warm to meet specific process requirements. The mixing mechanism 2 includes a motor 201. The bottom end of the motor 201 is fixedly connected to the top end of the processing tank 1. A drive assembly 202 is set on the right side of the motor 201. The drive assembly 202 is responsible for transmitting the power generated by the motor 201 to other parts. A transmission shaft 203 is fixedly connected to the middle of the drive assembly 202. A rotating assembly 204 is set on the top of the outer wall of the transmission shaft 203. The function of the rotating assembly 204 is to transmit the rotational motion of the transmission shaft 203 to the mixing assembly 205. A cleaning assembly 206 is set on the right side of the transmission shaft 203. The main function of the cleaning assembly 206 is to ensure that no material residue or agglomeration occurs during the mixing process, thereby ensuring the uniformity of the mixing effect and the cleanliness of the inside of the processing tank 1.

[0033] Please see the appendix Figure 2 - Appendix Figure 3 The heating mechanism 3 includes a liquid storage tank 301. The right side of the liquid storage tank 301 is fixedly connected to the left side of the outer wall of the processing tank 1, ensuring the stability and sealing between the liquid storage tank 301 and the processing tank 1, thereby avoiding the possibility of liquid leakage. A heater 302 is fixedly connected to the left side of the liquid storage tank 301. The heater 302 is responsible for providing the necessary heat to the liquid in the liquid storage tank 301 to ensure that the liquid maintains appropriate fluidity and chemical stability within a specific temperature range. A water pump 303 is fixedly connected to the top of the liquid storage tank 301. The main function of the water pump 303 is to pump the liquid in the liquid storage tank 301 to other parts of the system. The top of the water pump 303 is connected to the liquid inlet pipe 304, and the other end of the liquid inlet pipe 304 is connected to the heat conduction pipe 305. The function of the heat conduction pipe 305 is to transfer the heat generated by the heater 302 to the liquid passing through, ensuring that the liquid maintains the required temperature during the flow process. The other end of the heat conduction pipe 305 is connected to the drain pipe 306, which is responsible for transporting the heated and circulated liquid back to other parts of the system or directly discharging it. The other end of the drain pipe 306 is connected to the front of the liquid storage tank 301, ensuring the effective circulation of the liquid in the system, and also facilitating the replenishment and discharge of the liquid, thereby improving the operating efficiency and flexibility of the entire system.

[0034] Specifically, the right side of the storage tank 301 is fixedly connected to the left side of the outer wall of the treatment tank 1, ensuring the stability and sealing between the storage tank 301 and the treatment tank 1, thereby avoiding the possibility of liquid leakage. A heater 302 is fixedly connected to the left side of the storage tank 301. This heater 302 is responsible for providing the necessary heat to the liquid in the storage tank 301 to ensure that the liquid maintains appropriate fluidity and chemical stability within a specific temperature range. A water pump 303 is fixedly connected to the top of the storage tank 301. The main function of the water pump 303 is to pump the liquid in the storage tank 301 to other parts of the system. The top of the water pump 303 is connected to... A liquid inlet pipe 304 is connected to the liquid inlet pipe 304, and the other end of the liquid inlet pipe 304 is connected to the heat conduction pipe 305. The function of the heat conduction pipe 305 is to transfer the heat generated by the heater 302 to the liquid passing through, so as to ensure that the liquid maintains the required temperature during the flow. The other end of the heat conduction pipe 305 is connected to the liquid outlet pipe 306. The liquid outlet pipe 306 is responsible for transporting the heated and circulated liquid back to other parts of the system or directly discharging it. The other end of the liquid outlet pipe 306 is connected to the front part of the liquid storage tank 301, forming a complete circulation system. This ensures the effective circulation of the liquid in the system and facilitates the replenishment and discharge of the liquid, thereby improving the operating efficiency and flexibility of the entire system.

[0035] Please see the appendix Figure 3 - Appendix Figure 4 The drive assembly 202 includes a drive shaft 2021, the left side of which is fixedly connected to the right side of the motor 201, ensuring that the drive shaft 2021 can effectively receive rotational power from the motor 201. A bevel gear 2022 is fixedly connected to the right side of the outer wall of the drive shaft 2021, and a bevel gear 2023 is meshed with the bottom right side of the bevel gear 2022, enabling the bevel gear 2022 and bevel gear 2023 to work together to transmit rotational power. The rotating assembly 204 includes a support plate 2041, the middle of which is fixedly connected to the middle of the outer wall of the drive shaft 203, ensuring that the support plate 2021 can effectively receive rotational power from the motor 201. 041 can stably support the drive shaft 203 and enable it to rotate smoothly. The top and front sides of the support plate 2041 are rotatably connected to two circular gears 2042. The outer wall of the circular gears 2042 is meshed with an inner gear ring 2043, so that the circular gears 2042 and the inner gear ring 2043 can work together to further transmit and distribute rotational power. The mixing component 205 includes a stirring rod 2051. The top of the outer wall of the stirring rod 2051 is fixedly connected to the middle of the circular gear 2042. Multiple stirring blades 2052 are fixedly connected to the bottom of the outer wall of the stirring rod 2051, thereby realizing the stirring and mixing of the mixture.

[0036] Specifically, the left side of the drive shaft 2021 is fixedly connected to the right side of the motor 201, ensuring that the drive shaft 2021 can effectively receive the rotational power from the motor 201. A bevel gear 1 2022 is fixedly connected to the right side of the outer wall of the drive shaft 2021. The bottom right end of this bevel gear 1 2022 meshes with another bevel gear 2 2023, allowing the bevel gear 1 2022 and bevel gear 2 2023 to work together to transmit rotational power. The rotating assembly 204 includes a support plate 2041, the middle of which is fixedly connected to the middle of the outer wall of the transmission shaft 203, ensuring that the support plate 2041 can stably support the transmission shaft 203 and allow it to rotate smoothly. Two circular gears 2042 are rotatably connected to the front and rear sides of the top of the support plate 2041. The outer walls of these circular gears 2042 mesh with the inner gear ring 2043, enabling the circular gears 2042 and the inner gear ring 2043 to work together to further transmit and distribute rotational power. The mixing assembly 205 includes a stirring rod 2051, the top of which is fixedly connected to the middle of the circular gears 2042, ensuring that the stirring rod 2051 can effectively receive the rotational power from the circular gears 2042 and transmit it to the stirring blades 2052. Multiple stirring blades 2052 are fixedly connected to the bottom of the outer wall of the stirring rod 2051. These stirring blades 2052 rotate under the drive of the stirring rod 2051, thereby achieving stirring and mixing of the mixture. The mixing assembly 205 can efficiently complete the mixing task and ensure the uniformity and consistency of the mixture.

[0037] Please see the appendix Figure 3 - Appendix Figure 5The cleaning assembly 206 includes a support bar 2061. The left side of the support bar 2061 is fixedly connected to the right side of the outer wall of the drive shaft 203, ensuring the stability and firmness between the support bar 2061 and the drive shaft 203, thereby ensuring the normal operation of the entire mechanical device. A cleaning bar 2062 is fixedly connected to the right side of the support bar 2061. The function of the cleaning bar 2062 is to remove debris or residues adhering to the surface of the drive shaft 203 during equipment operation, so as to keep the drive shaft 203 clean and operate efficiently. Multiple support legs 4 are fixedly connected to the bottom of the processing tank 1. These support legs 4 not only provide stable support for the processing tank 1, ensuring its stability, but also ensure its smooth operation. It remains stable under various working environments and can withstand the various forces generated during the operation of the processing tank 1. The top front wall of the processing tank 1 is connected to the feed pipe 5 to provide the necessary material supply for the subsequent processing. The bottom rear wall of the processing tank 1 is connected to the discharge pipe 6. The main function of the discharge pipe 6 is to discharge the processed material from the inside of the processing tank 1, ensuring the smooth progress of the entire processing process. The rear side of the motor 201 is fixedly connected to the fixing block 7. The function of the fixing block 7 is to firmly fix the motor 201 in the corresponding position of the equipment, preventing the motor 201 from shifting or vibrating during operation, thereby ensuring the stability and reliability of the equipment.

[0038] Specifically, the left side of the support bar 2061 is fixedly connected to the right side of the outer wall of the drive shaft 203, ensuring the stability and firmness between the support bar 2061 and the drive shaft 203, thereby ensuring the normal operation of the entire mechanical device. The right side of the support bar 2061 is fixedly connected to the cleaning bar 2062. The function of the cleaning bar 2062 is to remove debris or residues adhering to the surface of the drive shaft 203 during equipment operation, so as to keep the drive shaft 203 clean and operate efficiently. The bottom of the processing tank 1 is fixedly connected to multiple support legs 4. These support legs 4 not only provide stable support for the processing tank 1, ensuring its stability in various working environments, but also can withstand the load of the processing tank 1. During operation, various forces are generated. The top front of the outer wall of the processing tank 1 is connected to the feed pipe 5. The function of the feed pipe 5 is to transport the material to be processed into the processing tank 1, providing the necessary material supply for the subsequent processing. The bottom rear of the outer wall of the processing tank 1 is connected to the discharge pipe 6. The main function of the discharge pipe 6 is to discharge the processed material from the processing tank 1, ensuring the smooth progress of the entire processing process. The rear part of the motor 201 is fixedly connected to the fixing block 7. The function of the fixing block 7 is to firmly fix the motor 201 in the corresponding position of the equipment, preventing the motor 201 from shifting or vibrating during operation, thereby ensuring the stability and reliability of the equipment.

[0039] Working principle: During use, the starting motor 201 outputs power to drive the drive shaft 2021 to rotate. The rotation of the drive shaft 2021 drives the first bevel gear 2022 to rotate, which in turn drives the second bevel gear 2023 to rotate. The rotation of the second bevel gear 2023 drives the transmission shaft 203 to rotate, which in turn drives the support plate 2041 to rotate. The rotation of the support plate 2041 drives the circular gear 2042 to rotate under the meshing of the inner gear ring 2043. The rotation of the circular gear 2042 drives the stirring rod 2051 to rotate, which in turn drives the stirring blade 2052 to rotate. The rotation of the stirring blade 2052 thus stirs the dispersant during storage, preventing the dispersant from settling and separating. At the same time, the rotation of the transmission shaft 203 drives the support bar 2061 to rotate, which in turn drives the cleaning bar 2062 to rotate, cleaning the inner wall of the processing tank 1 and preventing the dispersant from crystallizing on the inner wall of the processing tank 1.

[0040] In use, the heater 302 is started to heat the heat-conducting liquid stored in the storage tank 301, and then the water pump 303 is started to input the heat-conducting liquid stored in the storage tank 301 into the heat-conducting pipe 305 through the inlet pipe 304 to keep the dispersant stored in the treatment tank 1 warm and promote the uniform dispersion of the dispersant. After use, the heat-conducting liquid is discharged back into the storage tank 301 through the drain pipe 306, thereby realizing recycling and avoiding resource waste.

[0041] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A dispersant control device for polyvinyl chloride production, comprising a processing tank (1), characterized in that: The processing tank (1) is equipped with a mixing mechanism (2) inside, which is used to mix and stir the dispersant stored inside the processing tank (1). The processing tank (1) is equipped with a heating mechanism (3) on the left side, which is used to heat and keep the dispersant warm. The mixing mechanism (2) includes a motor (201), the bottom end of which is fixedly connected to the top end of the processing tank (1). A drive assembly (202) is provided on the right side of the motor (201), a transmission shaft (203) is fixedly connected to the middle of the drive assembly (202), a rotating assembly (204) is provided on the top end of the outer wall of the transmission shaft (203), a mixing assembly (205) is provided at the bottom end of the rotating assembly (204), and a cleaning assembly (206) is provided on the right side of the transmission shaft (203).

2. The dispersant control device in the polyvinyl chloride production process according to claim 1, characterized in that: The heating mechanism (3) includes a liquid storage tank (301). The right side of the liquid storage tank (301) is fixedly connected to the left side of the outer wall of the processing tank (1). A heater (302) is fixedly connected to the left side of the liquid storage tank (301). A water pump (303) is fixedly connected to the top of the liquid storage tank (301). An inlet pipe (304) is connected to the top of the water pump (303). A heat conduction pipe (305) is connected to the other end of the inlet pipe (304). A drain pipe (306) is connected to the other end of the heat conduction pipe (305). The other end of the drain pipe (306) is connected to the front side of the liquid storage tank (301).

3. The dispersant control device in the polyvinyl chloride production process according to claim 1, characterized in that: The drive assembly (202) includes a drive shaft (2021), the left side of which is fixedly connected to the right side of the motor (201), and a bevel gear (2022) is fixedly connected to the right side of the outer wall of the drive shaft (2021), and a bevel gear (2023) is meshed at the bottom right side of the bevel gear (2022).

4. The dispersant control device in the polyvinyl chloride production process according to claim 1, characterized in that: The rotating assembly (204) includes a support rotating plate (2041), the middle part of which is fixedly connected to the middle part of the outer wall of the transmission shaft (203). Two circular gears (2042) are rotatably connected to the front and rear sides of the top of the support rotating plate (2041), and an inner gear ring (2043) is meshed with the outer wall of the circular gears (2042).

5. The dispersant control device in the production process of polyvinyl chloride according to claim 1, characterized in that: The mixing component (205) includes a stirring rod (2051), the top of the outer wall of the stirring rod (2051) is fixedly connected to the middle of the circular gear (2042), and a plurality of stirring blades (2052) are fixedly connected to the bottom of the outer wall of the stirring rod (2051).

6. The dispersant control device in the polyvinyl chloride production process according to claim 1, characterized in that: The cleaning component (206) includes a support bar (2061), the left side of which is fixedly connected to the right side of the outer wall of the drive shaft (203), and a cleaning bar (2062) is fixedly connected to the right side of the support bar (2061).

7. The dispersant control device in the polyvinyl chloride production process according to claim 1, characterized in that: The bottom of each processing barrel (1) is fixedly connected to multiple support legs (4), and the top of the front side of the outer wall of the processing barrel (1) is connected to a feed pipe (5).

8. The dispersant control device in the production process of polyvinyl chloride according to claim 1, characterized in that: The bottom of the outer wall of the processing barrel (1) is connected to a discharge pipe (6), and a fixing block (7) is fixedly connected to the rear side of the motor (201).

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