Raw material drying device for PVC pipe production

Abstract

The utility model belongs to the technical field of PVC (polyvinyl chloride) pipe production devices, and discloses a raw material drying device for PVC pipe production, which comprises a drying barrel, a full stirring structure positioned in the drying barrel, and communication structures positioned at the top and the bottom of the drying barrel, the partition plate divides the inner space of the cavity into an installation space and a drying space, and an electric heating wire is installed on the inner wall of the installation space. Through the design of a communicating structure and a sufficient stirring structure, after an electric heating wire is turned on, hot air can smoothly enter a circulating pipeline A and a circulating pipeline B by means of smooth circulation of air, and heat energy is promoted to be transmitted to all parts such as the top, the bottom and the inner wall of the drying barrel; and the servo motor can drive the connecting plate and the two transmission gears to rotate, so that the PVC resin in the drying barrel is stirred, and finally the highly uniform drying effect is achieved.

Description

Technical Field

[0001] The utility model belongs to the technical field of PVC pipe production devices, and specifically relates to a raw material drying device for PVC pipe production. Background Technique

[0002] PVC is the abbreviation of (Polyvinylchlorid), mainly composed of polyvinyl chloride, a material added with other components to enhance its heat resistance, toughness, and ductility. The top layer of this surface film is paint, the main component in the middle is polyvinyl chloride, and the bottom layer is a back coating adhesive. It is a synthetic material that is deeply loved, quite popular, and widely used in the world today. PVC pipes have the advantages of light weight, corrosion resistance, small water flow resistance, energy saving, rapid installation, and low cost, and are vigorously promoted and applied with remarkable benefits. They are widely used in urban tap water supply projects, building internal and external water supply projects, industrial and mining enterprise water supply projects, buried fire water supply projects, farmland water conservancy water conveyance and irrigation projects, garden horticulture greening water supply projects, aquaculture water supply and drainage projects, etc., and have achieved good economic and social benefits. At present, the raw materials of PVC pipes need to be dried before production to ensure smooth production and the stability of the subsequent product performance;

[0003] The deficiencies of the existing raw material drying devices for PVC pipe production: In the process of drying raw materials such as polyvinyl chloride (PVC) resin, the heating structures adopted by current devices often have the significant characteristic of fixed positions. Although in most cases, these devices are equipped with corresponding stirring structures in an attempt to improve the drying effect, in fact, it is still difficult to achieve the ideal effect of uniform drying only relying on single-point heating. This non-uniform drying effect brought by single-point heating, on the one hand, will result in a situation where some polyvinyl chloride has reached the dry state while another part of the polyvinyl chloride is still in a wet state. This will not only seriously affect the overall efficiency and quality of drying, but may also lead to inconsistencies in product performance. Content of the Utility Model

[0004] To solve the problems raised in the above background technique, the utility model provides a raw material drying device for PVC pipe production, including a drying barrel, a sufficient stirring structure located inside the drying barrel, and a communication structure located at the top and bottom of the drying barrel. The drying barrel is provided with a cavity, and a partition is assembled inside the cavity. The partition divides the internal space of the cavity into an installation space and a drying space, and an electric heating wire is installed on the inner wall of the installation space;

[0005] The connecting structure includes an A circulation pipe connected through the top wall in the installation space and a B circulation pipe connected through the bottom wall in the installation space. A plurality of air outlet holes are opened at the bottom of the A circulation pipe. The A circulation pipe and the B circulation pipe are respectively assembled at the top and bottom of the drying barrel.

[0006] The full stirring structure includes a fixed gear and two driven gears meshed with the surface of the fixed gear, and a connecting column fixedly connected to the bottoms of the two driven gears. A connecting plate is fixedly installed at the bottom end of the connecting column, and a stirring rod is fixedly installed at the bottom of the connecting plate and below the two driven gears.

[0007] Preferably, it further includes a servo motor located in the middle of the A circulation pipe and assembled at the center of the top of the drying barrel.

[0008] Preferably, the output end of the servo motor penetrates through the drying barrel and the fixed gear and is fixedly connected to the center of the top of the connecting plate.

[0009] Preferably, the top of the fixed gear is fixedly installed on the inner top wall of the drying barrel through a connecting rod.

[0010] Preferably, a feeding pipe is arranged at the bottom of the drying barrel, and the top of the feeding pipe is funnel-shaped.

[0011] Preferably, a plurality of stirring blades are installed on the outer wall of the stirring rod at equidistant intervals.

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

[0013] Through the design of the connecting structure and the full stirring structure, after the electric heating wire is turned on, with the smooth flow of gas, the hot air can smoothly enter the A circulation pipe and the B circulation pipe. Among them, the partition has excellent heat transfer performance, which can promote the heat transfer to various parts such as the top, bottom, and inner wall of the drying barrel. In addition, the servo motor can drive the connecting plate and the two transmission gears to rotate. When these two transmission gears contact the fixed gear, they will inevitably revolve along the fixed gear and rotate on their own. In this case, the stirring rod and the stirring blades start to rotate, and then the polyvinyl chloride (PVC) resin inside the drying barrel is stirred, and finally a highly uniform drying effect is achieved. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0015] Figure 2 is a schematic diagram of the internal structure of the drying barrel of the present utility model;

[0016] Figure 3 is a schematic diagram of the full stirring structure of the present utility model;

[0017] Figure 4 This is a schematic diagram of the bottom structure of the drying barrel of the present utility model;

[0018] Figure 5 This is a schematic top view structure diagram of the present utility model;

[0019] Figure 6 is Figure 2 A partial enlarged schematic diagram at position A in

[0020] In the figure: 1. Drying barrel; 11. Partition board; 12. Electric heating wire; 13. Servo motor; 14. Feeding pipe; 2. Full stirring structure; 21. Fixed gear; 22. Driven gear; 23. Connecting column; 24. Connecting plate; 25. Stirring rod; 26. Connecting rod; 27. Stirring blade; 3. Connecting structure; 31. A circulation pipeline; 32. B circulation pipeline. Specific embodiments

[0021] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0022] As Figures 1 to 6 shown, the present utility model provides a raw material drying device for PVC pipe production, including a drying barrel 1 and a full stirring structure 2 located inside the drying barrel 1, and a connecting structure 3 located at the top and bottom of the drying barrel 1. The drying barrel 1 is provided with a cavity, and a partition board 11 is assembled inside the cavity. The partition board 11 divides the internal space of the cavity into an installation space and a drying space, and an electric heating wire 12 is installed on the inner wall of the installation space;

[0023] The connecting structure 3 includes an A circulation pipeline 31 that is connected through the top wall of the installation space and a B circulation pipeline 32 that is connected through the bottom wall of the installation space. A plurality of air outlet holes are opened at the bottom of the A circulation pipeline 31, and the A circulation pipeline 31 and the B circulation pipeline 32 are respectively assembled at the top and bottom of the drying barrel 1;

[0024] The full stirring structure 2 includes a fixed gear 21 and two driven gears 22 that are meshed and connected to the surface of the fixed gear 21, and a connecting column 23 that is fixedly connected to the bottom of the two driven gears 22. The bottom end of the connecting column 23 is fixedly installed with a connecting plate 24, and a stirring rod 25 is fixedly installed at the bottom of the connecting plate 24 and below the two driven gears 22.

[0025] Adopting the above - mentioned solution: Through the design of the connection structure 3 and the full - stirring structure 2, after the electric heating wire 12 is turned on, with the smooth flow of gas, the hot air can smoothly enter the A - circulation pipeline 31 and the B - circulation pipeline 32. Among them, the partition plate 11 has excellent heat - transfer performance, which can promote the transfer of heat energy to various parts such as the top, bottom, and inner wall of the drying barrel 1. In addition, the servo motor 13 can drive the connecting plate 24 and two transmission gears to rotate. When these two transmission gears come into contact with the fixed gear 21, they will inevitably revolve along the fixed gear 21 while rotating on their own axes. In this case, the stirring rod 25 and the stirring blades 27 start to rotate, thereby stirring the polyvinyl chloride (PVC) resin inside the drying barrel 1, and finally achieving a highly uniform drying effect.

[0026] As Figures 1 to 6 shown, it also includes a servo motor 13 located in the middle of the A - circulation pipeline 31 and assembled at the axis center of the top of the drying barrel 1. The output end of the servo motor 13 penetrates through the drying barrel 1 and the fixed gear 21 and is fixedly connected to the center of the top of the connecting plate 24.

[0027] Adopting the above - mentioned solution: A through - hole is provided in the middle of the fixed gear 21, and the output end of the servo motor 13 passes through the through - hole through the output shaft rod and is fixedly connected to the center of the top of the connecting plate 24.

[0028] As Figures 1 to 6 shown, the top of the fixed gear 21 is fixedly installed on the inner top wall of the drying barrel 1 through a connecting rod 26. A feeding pipe 14 is provided at the bottom of the drying barrel 1, and the top of the feeding pipe 14 is in a funnel shape.

[0029] Adopting the above - mentioned solution: The raw material polyvinyl chloride (PVC) resin can be added into the drying barrel 1 through the feeding pipe 14.

[0030] As Figures 1 to 6 shown, a number of equally - spaced stirring blades 27 are installed on the outer wall of the stirring rod 25.

[0031] Adopting the above - mentioned solution: When the stirring rod 25 rotates, it can drive a plurality of stirring blades 27 to rotate synchronously. By rotating the stirring blades 27, the polyvinyl chloride (PVC) resin can be stirred.

[0032] The working principle and usage process of the present utility model:

[0033] First, polyvinyl chloride (PVC) resin is filled into the interior of the drying barrel 1 through the feeding pipe 14. After that, after starting the electric heating wire 12, with the smooth flow of gas, hot air can smoothly enter the A circulation pipe 31 and the B circulation pipe 32. Among them, the partition 11 has excellent heat transfer performance, which can promote the transfer of heat energy to various parts of the drying barrel 1, such as the top, bottom, and inner wall. Then, start the servo motor 13. The rotation of the servo motor 13 drives the connecting rod and the two transmission gears to rotate. And when the two transmission gears come into contact with the fixed gear 21, they will inevitably rotate around the fixed gear 21 while rotating on their own axes. In this case, the stirring rod 25 and the stirring blades 27 start to rotate, thereby stirring the polyvinyl chloride (PVC) resin inside the drying barrel 1.

[0034] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0035] Although the embodiments of the present invention have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A raw material drying device for PVC pipe production, characterized in that: The invention comprises a drying barrel (1), a fully stirring structure (2) located inside the drying barrel (1), and a connecting structure (3) located at the top and bottom of the drying barrel (1), wherein the drying barrel (1) is provided with a cavity, wherein a partition (11) is installed inside the cavity, wherein the partition (11) divides the internal space of the cavity into an installation space and a drying space, and an electric heating wire (12) is installed on the inner wall of the installation space; The connecting structure (3) comprises an A circulation pipe (31) connected to the top wall of the installation space and a B circulation pipe (32) connected to the bottom wall of the installation space, a plurality of air outlet holes are provided at the bottom of the A circulation pipe (31), and the A circulation pipe (31) and the B circulation pipe (32) are respectively mounted on the top and bottom of the drying barrel (1); The fully stirring structure (2) comprises a fixed gear (21) and two driven gears (22) meshingly connected to the surface of the fixed gear (21), and a connecting column (23) fixedly connected to the bottom of the two driven gears (22), a connecting plate (24) fixedly mounted at the bottom end of the connecting column (23), and a stirring rod (25) fixedly mounted at the bottom of the connecting plate (24) and below the two driven gears (22).

2. A raw material drying device for PVC pipe production according to claim 1, characterized in that: It also includes a servo motor (13) located in the middle of the A circulation pipe (31) and mounted on the top axis of the drying barrel (1).

3. A raw material drying device for PVC pipe production according to claim 2, characterized in that: The output end of the servo motor (13) passes through the drying barrel (1) and the fixed gear (21) and is fixedly connected to the center of the top of the connecting plate (24).

4. A raw material drying device for PVC pipe production according to claim 1, characterized in that: The top of the fixed gear (21) is fixedly mounted on the inner top wall of the drying barrel (1) via a connecting rod (26).

5. The raw material drying device for PVC pipe production according to claim 1, characterized in that: A feeding pipe (14) is provided at the bottom of the drying barrel (1), and the top of the feeding pipe (14) is funnel-shaped.

6. A raw material drying device for PVC pipe production according to claim 4, characterized in that: The outer wall of the stirring rod (25) is provided with a plurality of stirring blades (27) which are distributed at equal distances.

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