Mixing kettle for producing polyvinyl chloride
By introducing a stirring system and conveying components driven by a two-axis motor in the mixing kettle, the problem of uneven mixing of polyvinyl chloride raw materials in the prior art is solved, and more efficient mixing effect and product quality improvement are achieved.
Patent Information
- Application Number
- CN202510201142.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-24
- Publication Date
- 2025-04-22
AI Technical Summary
When the existing mixing kettle is mixed with polyvinyl chloride raw materials, the raw materials are prone to stratification due to a single stirring shaft, and the mixing effect is poor, resulting in poor quality of polyvinyl chloride.
A mixing kettle including a dual-axis motor, agitating rod, a rotating rod, a scraping rod, a mixing plate and other components are designed. The mixing rod and a mixing plate are driven by a dual-axis motor for horizontal and longitudinal stirring, and the raw materials are transported to various parts of the internal body of the mixing kettle through the conveying assembly, realizing multiple mixing and conveying.
Through multiple cross- and longitudinal stirring and conveying, the mixing effect of polyvinyl chloride raw materials is significantly improved, material stratification is avoided, and product quality is improved.
Smart Images
Figure CN119858242A_ABST
Abstract
Description
Technical Field
[0001] The invention belongs to the technical field of mixing kettles, and in particular relates to a mixing kettle for producing polyvinyl chloride. Background Art
[0002] Mixing kettles are mainly used for mixing, reacting or dispersing materials. They usually have heating and cooling functions. They are common equipment in chemical, pharmaceutical, food processing and other industries. Mixing kettles are generally large and have built-in stirring devices. The kettle body material is corrosion-resistant and high-temperature resistant (such as stainless steel or enamel).
[0003] When the existing mixing kettle is mixing the polyvinyl chloride raw materials, the polyethylene raw materials are usually directly put into the mixing kettle in sequence and then stirred by a stirring rod. At present, the mixing kettle is only stirred by a single stirring shaft, which causes the raw materials to be easily stratified in the reaction chamber inside the mixing kettle, resulting in poor stirring effect of the raw materials inside the mixing kettle, resulting in low quality of the produced polyvinyl chloride. Summary of the invention
[0004] The purpose of the present invention is to solve the shortcomings in the prior art and to propose a mixing kettle for producing polyvinyl chloride.
[0005] To achieve the above objectives, the present invention provides a mixing kettle for producing polyvinyl chloride, comprising a mixing kettle body, support plates are connected to both sides of the upper end of the mixing kettle body, the upper ends of the support plates are connected to a barrel, the middle part of the lower end of the inner wall of the barrel is connected to a material guide block, the middle part of the upper end of the mixing kettle body is connected to a mixing component, both sides of the lower end of the barrel are connected to conveying components, the middle part of the lower end of the mixing kettle body is connected to a discharge pipe, and the lower part of one side of the mixing kettle body is connected to a pumping component.
[0006] In the above technical solution, further, the mixing assembly includes a dual-axis motor, the lower end of the dual-axis motor is connected to a stirring rod, the lower end of the stirring rod extends through the inside of the mixing kettle body, the upper end of the dual-axis motor is connected to a rotating rod, the upper end of the rotating rod extends through the cylinder and the material guide block and extends to the upper end of the material guide block, the lower parts of both sides of the rotating rod are connected to scraper rods, the lower ends of the two scraper rods are respectively in contact with the two sides of the upper end of the material guide block, and one side of the two scraper rods are respectively in contact with the two sides of the inner wall of the cylinder.
[0007] In the above technical solution, further, a support rod is connected to the middle of the upper end of the inner wall of the cylinder, the lower end of the support rod is connected to the shell, the upper end of the rotating rod extends through and into the shell, the upper part of the outer wall of the rotating rod is connected to a first bevel gear, one side of the upper end of the first bevel gear is meshedly connected to a second bevel gear, the inner wall of the second bevel gear is connected to a rotating shaft, both ends of the rotating shaft extend through and to both sides of the shell, and both ends of the rotating shaft are connected to mixing plates.
[0008] In the above technical solution, further, the conveying component includes a feed pipe, the number of the feed pipes is two groups, the lower ends of the two feed pipes are connected to connecting pipes, and the lower part of one side of the mixing kettle body is connected to a material pump.
[0009] In the above technical solution, further, one side of the two connecting pipes is connected to a delivery pipe, one end of the plurality of delivery pipes respectively extends through the interior of the mixing kettle body, and the middle of the outer wall of the plurality of delivery pipes is connected to a delivery valve.
[0010] In the above technical solution, further, the material pump input end is connected to a first material delivery pipe, one end of which extends through the inside of the mixing kettle body, and the material pump output end is connected to a second material delivery pipe, one end of which extends through the inside of the cylinder.
[0011] In the above technical solution, further, the material extraction assembly includes a support tube, the upper end of the support tube is connected to the lower end of the stirring rod, both sides of the support tube are connected to stirring tubes, a feed port is opened at the lower part of one side of the outer wall of the stirring tube, and both sides of the support tube are connected to stirring blades.
[0012] In the above technical solution, further, the lower end of the stirring blade is connected with a rotating joint, and the lower end of the rotating joint is connected to one end of the first feed pipe.
[0013] Compared with the prior art, the present invention has the following beneficial effects: Through the arrangement of a stirring rod, a rotating rod, a scraper rod, a supporting rod, a shell, a first bevel gear, a second bevel gear, a rotating shaft, a mixing plate, a feeding pipe, a connecting pipe, a conveying pipe, a conveying valve, a discharge pipe, a material pump, a first conveying pipe, a second conveying pipe, a supporting pipe, a stirring pipe, a feeding port, a stirring blade and a rotating joint, the mixing plate, the stirring rod and the supporting pipe and the stirring blade can respectively stir the raw materials horizontally and vertically, and at the same time, the raw materials in the cylinder body can be respectively conveyed to various places inside the mixing kettle body through the feeding pipe, the connecting pipe and the conveying pipe, and at the same time, the stirring rod follows the supporting pipe and is located inside the mixing kettle body to stir the materials. When the conveying pump is working, the two stirring pipes generate suction, and then the materials enter the stirring pipe through multiple feeding ports, and the materials in the stirring pipe are successively conveyed to the inside of the cylinder body through the supporting pipe, the rotating joint, the first conveying pipe and the second conveying pipe for secondary mixing, thereby improving the mixing effect of the raw materials, avoiding the stratification of the materials inside the mixing kettle, and improving the mixing effect of the mixing kettle to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 It is a schematic diagram of the overall structure proposed by the present invention; Figure 2 A cross-sectional view of the interior of the mixing kettle provided by the present invention; Figure 3 This is a schematic diagram of the installation structure of the mixing assembly proposed by the present invention; Figure 4 This is a schematic diagram of the installation structure of the scraper rod proposed by the present invention; Figure 5 This is a schematic diagram of the installation structure of the rotary joint proposed by the present invention; Figure 6 This is a schematic diagram of the structure for opening the feed port proposed in the present invention.
[0015] In the figure: 1. mixing kettle body; 2. support plate; 3. cylinder; 4. material guide block; 5. double-axis motor; 6. stirring rod; 7. rotating rod; 8. scraper rod; 9. support rod; 10. shell; 11. first bevel gear; 12. second bevel gear; 13. rotating shaft; 14. mixing plate; 15. feeding pipe; 16. connecting pipe; 17. conveying pipe; 18. conveying valve; 19. discharging pipe; 20. material pump; 21. first conveying pipe; 22. second conveying pipe; 23. support pipe; 24. stirring pipe; 25. feeding port; 26. stirring blade; 27. rotating joint. DETAILED DESCRIPTION
[0016] In order to more clearly understand the above-mentioned objects, features and advantages of the present invention, the present invention is further described in detail below with reference to the accompanying drawings and specific embodiments.
[0017] like Figure 1-Figure 6 A mixing kettle for producing polyvinyl chloride is shown, comprising a mixing kettle body 1, support plates 2 are connected to both sides of the upper end of the mixing kettle body 1, a barrel 3 is connected to the upper end of the support plate 2, a guide block 4 is connected to the middle of the lower end of the inner wall of the barrel 3, a mixing component is connected to the middle of the upper end of the mixing kettle body 1, both sides of the lower end of the barrel 3 are connected to the conveying component, a discharge pipe 19 is connected to the middle of the lower end of the mixing kettle body 1, and a pumping component is connected to the lower part of one side of the inner part of the mixing kettle body 1; The cylinder 3 can be supported by the support plate 2. A feed pipe is connected to the upper part of one side of the cylinder 3. By feeding the polyvinyl chloride raw material into the cylinder 3, the materials inside the cylinder 3 can be mixed through the mixing component, and the polyvinyl chloride raw material inside the cylinder 3 is transported to the mixing kettle body 1 through the conveying component. The polyvinyl chloride raw material inside the mixing kettle body 1 is mixed by the mixing component, and a discharge valve is connected to the middle part of the outer wall of the discharge pipe 19. During the mixing process, the discharge valve is closed, and the mixed polyvinyl chloride raw material is accumulated at the discharge pipe 19. The raw material inside the mixing kettle body 1 is transported to the cylinder 3 again by the conveying component for secondary mixing, and then the polyvinyl chloride raw material is transported to the mixing kettle body 1 by the conveying component for mixing reaction. After the production is completed, the discharge valve is opened, and the material is discharged through the discharge pipe 19 to ensure the mixing effect of the polyvinyl chloride raw material.
[0018] The mixing assembly includes a double-shaft motor 5, the lower end of the double-shaft motor 5 is connected to a stirring rod 6, the lower end of the stirring rod 6 extends through and into the mixing kettle body 1, the upper end of the double-shaft motor 5 is connected to a rotating rod 7, the upper end of the rotating rod 7 extends through and into the barrel 3 and the guide block 4 and extends to the upper end of the guide block 4, the lower parts of both sides of the rotating rod 7 are connected to scraper rods 8, the lower ends of the two scraper rods 8 are respectively in contact with the two sides of the upper end of the guide block 4, and one side of the two scraper rods 8 is respectively in contact with the two sides of the inner wall of the barrel 3, a support rod 9 is connected to the middle part of the upper end of the inner wall of the barrel 3, the lower end of the support rod 9 is connected to a shell 10, the upper end of the rotating rod 7 extends through and into the shell 10, the upper part of the outer wall of the rotating rod 7 is connected to a first bevel gear 11, one side of the upper end of the first bevel gear 11 is meshedly connected to a second bevel gear 12, the inner wall of the second bevel gear 12 is connected to a rotating shaft 13, both ends of the rotating shaft 13 extend through and into the two sides of the shell 10, and both ends of the rotating shaft 13 are connected to mixing plates 14; The dual-axis motor 5 works, driving the rotating rod 7, the two scraping rods 8 and the first bevel gear 11 to rotate, thereby driving the second bevel gear 12, the rotating shaft 13 and the two mixing plates 14 to rotate. The two mixing plates 14 can mix the raw materials inside the cylinder 3 horizontally, and at the same time, the scraping rods 8 can scrape the raw materials on the inner wall of the cylinder 3 to prevent the raw materials from adhering to the inner wall of the cylinder 3. The two unloading valves are opened, and then the raw materials inside the cylinder 3 are transported to various places inside the mixing kettle body 1 through the conveying assembly. The dual-axis motor 5 works and drives the stirring rod 6, the support tube 23, the stirring tube 24 and the multiple stirring blades 26 to rotate at the same time, so as to facilitate the secondary mixing of the raw materials inside the mixing kettle body 1.
[0019] The conveying assembly includes a feed pipe 15, and the number of the feed pipes 15 is two groups. The lower ends of the two feed pipes 15 are connected to a connecting pipe 16. The lower part of one side of the mixing kettle body 1 is connected to a material pump 20. One side of the two connecting pipes 16 is connected to a conveying pipe 17. One end of the plurality of conveying pipes 17 extends through the inside of the mixing kettle body 1. The middle of the outer wall of the plurality of conveying pipes 17 is connected to a conveying valve 18. The input end of the material pump 20 is connected to a first conveying pipe 21. One end of the first conveying pipe 21 extends through the inside of the mixing kettle body 1. The output end of the material pump 20 is connected to a second material delivery pipe 22, one end of the second material delivery pipe 22 extends through the inside of the cylinder 3, and the material extraction assembly includes a support pipe 23, the upper end of the support pipe 23 is connected to the lower end of the stirring rod 6, and both sides of the support pipe 23 are connected to stirring pipes 24, and a feeding port 25 is provided at the lower part of one side of the outer wall of the stirring pipe 24, and both sides of the support pipe 23 are connected to stirring blades 26, and the lower end of the stirring blades 26 is connected to a rotating joint 27, and the lower end of the rotating joint 27 is connected to one end of the first material delivery pipe 21; A feeding valve is connected to one side of the outer wall of the first feeding pipe 21. When the mixing kettle body 1 finishes mixing the raw materials, the discharge valve and the feeding valve are opened, and the material pump 20 works, and the two stirring tubes 24 generate suction. At this time, the support tube 23 and the two stirring tubes 24 are in a rotating state, and then the raw materials inside the mixing kettle body 1 enter the two stirring tubes 24 through the two feed ports 25 respectively, and the materials are transported to the first feeding pipe 21 through the stirring tube 24, the support tube 23 and the rotating joint 27. The raw materials inside the first feeding pipe 21 are transported to the cylinder 3 through the second feeding pipe 22 for re-mixing, which is convenient for transporting the raw materials inside the mixing kettle body 1 to the cylinder 3 again, thereby improving the mixing effect of the materials.
[0020] Working principle: When using the device, a variety of polyvinyl chloride raw materials are sequentially fed into the cylinder 3 through the feed pipe, and the dual-axis motor 5 drives the first bevel gear 11 of the rotating rod 7 to rotate, thereby driving the second bevel gear 12, the rotating shaft 13 and the two mixing plates 14 to rotate, and the polyvinyl chloride raw materials inside the cylinder 3 are mixed. After the mixing is completed, the discharge valve is opened, and the raw materials enter the connecting pipe 16 through the two discharge pipes 15 respectively. While the discharge is being carried out, the rotating rod 7 drives the scraper 8 to scrape the two sides of the inner wall of the cylinder 3 to avoid residue on the inner wall of the cylinder 3. The delivery valve 18 is opened, and the raw materials inside the connecting pipe 16 are respectively delivered to various places inside the mixing kettle body 1 through multiple delivery pipes 17. The raw materials can be mixed again through the stirring rod 6. After the mixing is completed, the delivery valve is opened, and the material pump 20 works. The two The stirring tube 24 generates suction, at which time the support tube 23 and the two stirring tubes 24 are in a rotating state, and then the raw materials inside the mixing kettle body 1 enter the two stirring tubes 24 through the two feed ports 25 respectively, and the materials are transported to the first delivery pipe 21 through the stirring tube 24, the support tube 23 and the rotating joint 27. The raw materials inside the first delivery pipe 21 are transported to the cylinder 3 through the second delivery pipe 22 for re-mixing. The mixing plate 14 inside the cylinder 3 mixes the raw materials inside the cylinder 3 again, and after mixing, they are transported to the mixing kettle body 1 through two discharge pipes 15, two connecting pipes 16 and multiple delivery pipes 17. The multiple delivery valves 18 are closed, and the raw materials in the mixing kettle body 1 can be reacted and processed. After the reaction, the discharge valve is opened, and the materials inside the mixing kettle body 1 are discharged through the discharge pipe 19.
[0021] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions only describe the principles of the present invention. The present invention may be subject to various changes and improvements without departing from the spirit and scope of the present invention, and these changes and improvements fall within the scope of the present invention claimed.
Claims
1. A mixing kettle for producing polyvinyl chloride, comprising a mixing kettle body (1), characterized in that: Support plates (2) are connected to both sides of the upper end of the mixing kettle body (1), a barrel (3) is connected to the upper end of the support plate (2), a guide block (4) is connected to the middle of the lower end of the inner wall of the barrel (3), a mixing component is connected to the middle of the upper end of the mixing kettle body (1), both sides of the lower end of the barrel (3) are connected to conveying components, a discharge pipe (19) is connected to the middle of the lower end of the mixing kettle body (1), and a pumping component is connected to the lower part of one side of the interior of the mixing kettle body (1).
2. A mixing kettle for producing polyvinyl chloride according to claim 1, characterized in that: The mixing assembly comprises a double-shaft motor (5), the lower end of the double-shaft motor (5) is connected to a stirring rod (6), the lower end of the stirring rod (6) extends through the interior of the mixing kettle body (1), the upper end of the double-shaft motor (5) is connected to a rotating rod (7), the upper end of the rotating rod (7) extends through the barrel (3) and the material guide block (4) and extends to the upper end of the material guide block (4), and the lower parts of both sides of the rotating rod (7) are connected to scraping rods (8), the lower ends of the two scraping rods (8) are respectively in contact with the two sides of the upper end of the material guide block (4), and one side of the two scraping rods (8) is respectively in contact with the two sides of the inner wall of the barrel (3).
3. A mixing kettle for producing polyvinyl chloride according to claim 2, characterized in that: A support rod (9) is connected to the middle of the upper end of the inner wall of the cylinder (3), the lower end of the support rod (9) is connected to the housing (10), the upper end of the rotating rod (7) extends through the inside of the housing (10), the upper part of the outer wall of the rotating rod (7) is connected to a first bevel gear (11), one side of the upper end of the first bevel gear (11) is meshingly connected to a second bevel gear (12), the inner wall of the second bevel gear (12) is connected to a rotating shaft (13), both ends of the rotating shaft (13) extend through both sides of the housing (10), and both ends of the rotating shaft (13) are connected to mixing plates (14).
4. A mixing kettle for producing polyvinyl chloride according to claim 1, characterized in that: The conveying assembly comprises a feed pipe (15), the feed pipe (15) being provided in two groups, the lower ends of the two feed pipes (15) being connected to a connecting pipe (16), and a material pump (20) being connected to the lower part of one side of the mixing kettle body (1).
5. A mixing kettle for producing polyvinyl chloride according to claim 4, characterized in that: One side of each of the two connecting pipes (16) is connected to a delivery pipe (17), one end of each of the plurality of delivery pipes (17) extends through the interior of the mixing kettle body (1), and a delivery valve (18) is connected to the middle of the outer wall of each of the plurality of delivery pipes (17).
6. A mixing kettle for producing polyvinyl chloride according to claim 4, characterized in that: The input end of the material pump (20) is connected to a first material delivery pipe (21), one end of which extends through the interior of the mixing kettle body (1); the output end of the material pump (20) is connected to a second material delivery pipe (22), one end of which extends through the interior of the cylinder body (3).
7. A mixing kettle for producing polyvinyl chloride according to claim 1, characterized in that: The material extraction assembly comprises a support tube (23), the upper end of the support tube (23) being connected to the lower end of the stirring rod (6), both sides of the support tube (23) being connected to stirring tubes (24), a feed port (25) being provided at the lower portion of one side of the outer wall of the stirring tube (24), and both sides of the support tube (23) being connected to stirring blades (26).
8. A mixing kettle for producing polyvinyl chloride according to claim 7, characterized in that: The lower end of the stirring blade (26) is connected to a rotating joint (27), and the lower end of the rotating joint (27) is connected to one end of the first material conveying pipe (21).