PVC environment-friendly heat stabilizer drying equipment
By designing a combination of conveying pipes, heating drying chambers, and airflow tumbling, the problem of difficult collection during the drying process of PVC environmentally friendly heat stabilizer powder was solved, achieving uniform heating and efficient collection of the powder.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-01
- Publication Date
- 2026-03-03
AI Technical Summary
During the drying process of PVC environmentally friendly heat stabilizers, powdery particles are difficult to collect and tend to agglomerate into larger particles, making collection difficult.
A drying device for PVC environmentally friendly heat stabilizer was designed, including components such as a conveying pipe, a heating drying chamber, a guide plate, a heating resistor, an arc-shaped flow guide surface, and air jet holes. The powder is conveyed by spiral blades and heated by the inclined surface of the guide plate and the heating resistor. Combined with the design of airflow tumbling and the flow guide plate, the uniform drying and efficient collection of the powder are achieved.
It achieves uniform heating, drying, and efficient collection of PVC environmentally friendly heat stabilizer powder, avoiding powder agglomeration into large particles and simplifying the subsequent filtration and collection process.
Smart Images
Figure CN223965824U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of drying equipment technology, and in particular to a PVC environmentally friendly heat stabilizer drying equipment. Background Technology
[0002] PVC is a white powder with an amorphous structure and low branching degree. It has poor stability to light and heat. At temperatures above 100°C or after prolonged exposure to sunlight, it decomposes to produce hydrogen chloride, which further autocatalytically decomposes, causing discoloration and a rapid decline in physical and mechanical properties. In practical applications, stabilizers must be added to improve its stability to heat and light.
[0003] Currently, in the production of PVC environmentally friendly heat stabilizers, in order to facilitate the subsequent addition of PVC environmentally friendly heat stabilizers into the production equipment, it is necessary to pulverize them during the production process and then dry the powder. However, during the drying process, it is difficult to collect the powder particles and they are prone to sticking together, eventually resulting in the formation of large granular objects. Utility Model Content
[0004] To address the problems in the prior art, this utility model provides a PVC environmentally friendly heat stabilizer drying device.
[0005] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:
[0006] A PVC environmentally friendly heat stabilizer drying device includes a conveying pipe, a heating drying chamber is provided on one side of the conveying pipe, one end of the conveying pipe is connected to the heating drying chamber, a guide plate is fixed on the inner wall of one side of the heating drying chamber near the conveying pipe, the top of the guide plate is inclined, a gap is left between one side of the guide plate and the inner wall of the other side of the heating drying chamber, multiple heating resistors are equidistantly arranged inside the guide plate near the inclined surface, and an arc-shaped guide surface is provided at the bottom of the guide plate.
[0007] Optionally, a guide plate is provided between the inner walls of the two sides of the heating and drying chamber near the upper edge, and a discharge square pipe is connected to one side of the heating and drying chamber near the top edge.
[0008] Optionally, the bottom of the guide plate is arc-shaped, and the arc shape extends to the top of one side of the discharge square tube.
[0009] Optionally, a feed inlet is provided at the top of the conveying pipe near the other edge, and a rotating shaft is rotatably arranged between the inner walls of the two sides of the conveying pipe, with helical blades fixed on the outer surface of the rotating shaft.
[0010] Optionally, a first air chamber is provided at one side edge of the bottom of the heating and drying oven, and a second air chamber is provided at the other side edge of the bottom of the heating and drying oven. One side of the first air chamber is opposite to the arc-shaped recess of the arc-shaped guide surface, and one side of the second air chamber is opposite to the end of the arc-shaped guide surface.
[0011] Optionally, multiple air jet holes penetrating into the interior of the heating and drying chamber are provided at equal intervals on one side of the inner wall of the first air chamber and one side of the inner wall of the second air chamber, and protective components are provided inside the multiple air jet holes.
[0012] Optionally, the protective assembly includes an installation tube installed inside the jet hole, a retaining ring fixed between the inner walls of the installation tube, a sealing block provided inside the installation tube, a spring fixed between the top of the sealing block and the retaining ring, and the bottom of the sealing block sealingly fitting against the bottom of the installation tube.
[0013] By adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art. Of course, any product implementing the present invention does not necessarily need to achieve all of the following advantages at the same time:
[0014] 1. In this utility model, in actual use, PVC environmentally friendly heat stabilizer powder is placed inside the conveying pipe through the feed port. Inside the conveying pipe, the spiral blades driven by the rotating shaft push the PVC environmentally friendly heat stabilizer powder into the heating and drying chamber. After entering the heating and drying chamber, the powder is first guided by the inclined surface of the guide plate so that it can flow downward evenly. At the same time, the guide plate is heated by the heating resistor, thereby heating and drying the powder on its inclined surface.
[0015] 2. In this utility model, after the powder falls from the inclined surface of the guide plate, air is supplied into the first air chamber. At this time, under the action of air outlets, the powder tumbles and flows below the arc-shaped guide surface inside the heating and drying chamber, thus ensuring that the airflow carries powdery substances. Since granular substances are heavier, they will fall to the bottom of the heating and drying chamber. Then, air is supplied into the second air chamber and discharged through the air outlets located on the second air chamber. This allows the airflow carrying the tumbling powder to be blown from one side of the arc-shaped guide surface to the top of the heating and drying chamber. Under the guidance of the guide plate, it enters the discharge square pipe, ensuring that the gas flowing out of the heating and drying chamber carries PVC environmentally friendly heat stabilizer powder, which is convenient for subsequent filtration and collection. Attached Figure Description
[0016] The accompanying drawings described below are merely some embodiments. Those skilled in the art can obtain other drawings based on these drawings without any creative effort. In the drawings:
[0017] Figure 1This utility model provides a front-view three-dimensional structural diagram of a PVC environmentally friendly heat stabilizer drying device;
[0018] Figure 2 This utility model provides a cross-sectional three-dimensional structural diagram of a PVC environmentally friendly heat stabilizer drying device;
[0019] Figure 3 This utility model provides a cross-sectional three-dimensional structural diagram of a protective component in a PVC environmentally friendly heat stabilizer drying device.
[0020] The attached diagram lists the components represented by each number as follows:
[0021] 1. Conveying pipe; 2. Heating and drying oven; 3. Discharge square pipe; 4. Feed inlet; 5. Guide plate; 6. Rotating shaft; 7. Spiral blade; 8. Guide plate; 9. Heating resistor; 10. Arc-shaped guide surface; 11. First air chamber; 12. Second air chamber; 13. Air jet hole; 14. Mounting pipe; 15. Fixing ring; 16. Sealing block; 17. Spring.
[0022] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation
[0023] The present invention will now be described in further detail with reference to the accompanying drawings.
[0024] Example 1, such as Figure 1-3 As shown, this utility model provides a technical solution for a PVC environmentally friendly heat stabilizer drying equipment: it includes a conveying pipe 1, a heating drying box 2 is provided on one side of the conveying pipe 1, one end of the conveying pipe 1 is connected to the heating drying box 2, a guide plate 8 is fixed on the inner wall of one side of the heating drying box 2 near the conveying pipe 1, the top of the guide plate 8 is inclined, a gap is left between one side of the guide plate 8 and the inner wall of the other side of the heating drying box 2, multiple heating resistors 9 are equidistantly arranged inside the guide plate 8 near the inclined surface, and an arc-shaped guide surface 10 is provided at the bottom of the guide plate 8.
[0025] The effect achieved by the entire embodiment 1 is that, in actual use, PVC environmentally friendly heat stabilizer powder is placed inside the conveying pipe 1 through the feed port 4. Inside the conveying pipe 1, the spiral blades 7 driven by the rotating shaft 6 push the PVC environmentally friendly heat stabilizer powder into the heating and drying chamber 2. After entering the heating and drying chamber 2, the powder is first guided by the inclined surface of the guide plate 8 so that it can flow downward evenly. At the same time, the guide plate 8 is heated by the heating resistor 9, thereby heating and drying the powder on its inclined surface.
[0026] Example 2, as Figure 1-3As shown, a guide plate 5 is provided between the inner walls of both sides of the heating and drying chamber 2 near the upper edge. A discharge square pipe 3 is connected to one side of the heating and drying chamber 2 near the top edge. The bottom of the guide plate 5 is arc-shaped and extends to the top of one side of the discharge square pipe 3. A feed inlet 4 is opened at the top of the conveying pipe 3 near the other side edge. A rotating shaft 6 is rotatably arranged between the inner walls of both sides of the conveying pipe 1. Spiral blades 7 are fixed on the outer surface of the rotating shaft 6. A first air chamber 11 is opened at the bottom of the heating and drying chamber 2 near one side edge. A second air chamber 12 is opened at the bottom of the heating and drying chamber 2 near the other side edge. One side of the first air chamber 11 is connected to the arc-shaped guide surface 10. The arc-shaped recesses are opposite each other, and one side of the second air chamber 12 is opposite to the end of the arc-shaped guide surface 10. Multiple jet holes 13 that penetrate into the interior of the heating and drying oven 2 are equally spaced on one side of the inner wall of the first air chamber 11 and one side of the inner wall of the second air chamber 12. Each jet hole 13 is equipped with a protective component. The protective component includes an installation tube 14, which is installed inside the jet hole 13. A fixing ring 15 is fixed between the inner walls of the installation tube 14. A sealing block 16 is provided inside the installation tube 14. A spring 17 is fixed between the top of the sealing block 16 and the fixing ring 15. The bottom of the sealing block 16 and the bottom of the installation tube 14 are sealed and fitted together.
[0027] The overall effect of Embodiment 2 is that after the powder falls from the inclined surface of the guide plate 8, it is supplied with air into the first air chamber 11. At this time, under the action of the air outlets 13, the powder is tumbled and flowed below the arc-shaped guide surface 10 inside the heating and drying chamber 2, thus ensuring that the airflow carries powdery substances. Since the granular substances are heavier, they will fall to the bottom of the heating and drying chamber 2. Then, air is supplied into the second air chamber 12 and discharged through the air outlets 13 located on the second air chamber 12. This allows the airflow carrying the tumbling powder to be blown from one side of the arc-shaped guide surface 10 to the top of the heating and drying chamber 2. Under the guidance of the guide plate 5, it enters the discharge square pipe 3, ensuring that the gas flowing out of the heating and drying chamber 2 carries PVC environmentally friendly heat stabilizer powder, which is convenient for subsequent filtration and collection. The protective components set inside the air outlets 13 can prevent particles on the bottom surface of the heating and drying chamber 2 from entering the interior of the air chamber.
[0028] Working principle: In actual use, PVC environmentally friendly heat stabilizer powder is placed inside the conveying pipe 1 through the feed inlet 4. Inside the conveying pipe 1, the spiral blades 7 driven by the rotating shaft 6 push the PVC environmentally friendly heat stabilizer powder into the heating and drying chamber 2. After entering the heating and drying chamber 2, the powder is first guided by the inclined surface of the guide plate 8 so that it can flow downwards evenly. At the same time, the guide plate 8 heats up under the heating resistor 9, thereby heating and drying the powder on its inclined surface. After the powder falls from the inclined surface of the guide plate 8, air is supplied into the first air chamber 11, and at this time, multiple air jet holes 13... Under the action of the air outlet, the powder tumbles and flows below the arc-shaped guide surface 10 inside the heating and drying chamber 2, thus ensuring that the airflow carries powdery substances. Since the granular substances are heavier, they will fall to the bottom of the heating and drying chamber 2 and then supply air into the second air chamber 12. The air is then discharged through the jet hole 13 located on the second air chamber 12, which can blow the airflow carrying the powder tumbling from one side of the arc-shaped guide surface 10 to the top of the heating and drying chamber 2. Under the guidance of the guide plate 5, it enters the discharge square pipe 3, ensuring that the gas flowing out of the heating and drying chamber 2 carries PVC environmentally friendly heat stabilizer powder, which is convenient for subsequent filtration and collection.
[0029] This utility model is not limited to the above-described embodiments. Anyone should know that structural changes made under the guidance of this utility model, and any technical solutions that are the same as or similar to this utility model, fall within the protection scope of this utility model. Technical aspects, shapes, and structures not described in detail in this utility model are all publicly known technologies.
Claims
1. A PVC environmentally friendly heat stabilizer drying device, comprising a conveying pipe (1), characterized in that: A heating drying chamber (2) is provided on one side of the conveying pipe (1). One end of the conveying pipe (1) is connected to the heating drying chamber (2). A guide plate (8) is fixed on the inner wall of one side of the heating drying chamber (2) near the side of the conveying pipe (1). The top of the guide plate (8) is inclined. There is a gap between one side of the guide plate (8) and the inner wall of the other side of the heating drying chamber (2). Multiple heating resistors (9) are equidistantly arranged inside the guide plate (8) near the inclined surface. An arc-shaped flow guide surface (10) is provided at the bottom of the guide plate (8).
2. The PVC environmentally friendly heat stabilizer drying equipment according to claim 1, characterized in that: A guide plate (5) is provided between the inner walls of the two sides of the heating and drying box (2) near the upper edge, and a discharge square pipe (3) is connected to one side of the heating and drying box (2) near the top edge.
3. The PVC environmentally friendly heat stabilizer drying equipment according to claim 2, characterized in that: The bottom of the guide plate (5) is arc-shaped, and the arc shape extends to the top of one side of the discharge square tube (3).
4. The PVC environmentally friendly heat stabilizer drying equipment according to claim 3, characterized in that: The top of the conveying pipe (1) is provided with a feed inlet (4) near the other side edge. A rotating shaft (6) is rotatably arranged between the inner walls of the two sides of the conveying pipe (1). A spiral blade (7) is fixed on the outer surface of the rotating shaft (6).
5. The PVC environmentally friendly heat stabilizer drying equipment according to claim 4, characterized in that: The heating and drying oven (2) has a first air chamber (11) at one side edge of the bottom and a second air chamber (12) at the other side edge of the bottom. One side of the first air chamber (11) is opposite to the arc-shaped recess of the arc-shaped guide surface (10), and one side of the second air chamber (12) is opposite to the end of the arc-shaped guide surface (10).
6. The PVC environmentally friendly heat stabilizer drying equipment according to claim 5, characterized in that: Multiple jet holes (13) that penetrate into the heating and drying oven (2) are provided at equal intervals on one side inner wall of the first air chamber (11) and one side inner wall of the second air chamber (12). Each of the multiple jet holes (13) is provided with a protective component inside.
7. The PVC environmentally friendly heat stabilizer drying equipment according to claim 6, characterized in that: The protective assembly includes an installation tube (14) installed inside the jet hole (13), a fixing ring (15) fixed between the inner walls of the installation tube (14), a sealing block (16) provided inside the installation tube (14), a spring (17) fixed between the top of the sealing block (16) and the fixing ring (15), and the bottom of the sealing block (16) and the bottom of the installation tube (14) sealingly fitting each other.