Impurity removal equipment for PVC (polyvinyl chloride) heat stabilizer

By designing an inclined bottom surface and filter structure inside the screening box, combined with motor-driven blades to generate airflow, the problem of separating incompletely powdered particles during the PVC heat stabilizer powdering process was solved, achieving effective particle removal and improving product purity.

CN224127882UActive Publication Date: 2026-04-17HUANGSHAN JIABAO NEW MATERIAL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUANGSHAN JIABAO NEW MATERIAL TECH CO LTD
Filing Date
2025-04-01
Publication Date
2026-04-17

AI Technical Summary

Technical Problem

In existing technologies, incompletely powdered particles during the pulverization process of PVC heat stabilizers cannot be effectively removed, resulting in granulation and affecting subsequent use.

Method used

A PVC heat stabilizer impurity removal device was designed, which adopts an inclined bottom surface and filter structure inside the screening box, combined with motor-driven blades to generate airflow, and a guide plate and arc surface are set inside the screening box to achieve particle separation and powder discharge.

Benefits of technology

Effective separation of incompletely powdered particles ensures the purity of powdered PVC heat stabilizer and improves product quality.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model provides a PVC heat stabilizer impurity removal equipment relates to PVC heat stabilizer production technical field, including the screening box, the internal bottom surface of screening box is inclined, one side of screening box close to the bottom edge is provided with a first collection tank, the top of first collection tank penetrates into the screening box and is connected with the inclined plane, and the bottom of the first collection tank is provided with a second collection tank. According to the PVC heat stabilizer powder screening device, PVC heat stabilizer powder is placed in the material box, the PVC heat stabilizer powder flows into the screening box from the bottom outlet in the material box, the PVC heat stabilizer powder is guided by the inclined surface at the bottom in the material box, the PVC heat stabilizer powder flows into the screening box from the bottom outlet, the PVC heat stabilizer powder flows into the screening box from the bottom outlet, and the PVC heat stabilizer powder flows into the screening box from the bottom outlet. The PVC heat stabilizer powder can uniformly flow downwards, the blades are driven by the motor to rotate in the flowing process, so that airflow is generated, the generated airflow is blown towards the filtering opening, and the powdery PVC heat stabilizer can be mixed into the airflow to flow into the discharging pipe to be discharged.
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Description

Technical Field

[0001] This utility model relates to the field of PVC heat stabilizer production technology, and in particular to a PVC heat stabilizer impurity removal device. Background Technology

[0002] PVC heat stabilizers are additives that improve the thermal stability of polymers. They are mainly used in PVC and other chlorine-containing polymers. In the production of PVC heat stabilizers, they are usually powdered, and impurities are removed from the powdered PVC heat stabilizers.

[0003] Currently, when removing impurities from PVC heat stabilizer powder, some PVC heat stabilizer particles that are not completely pulverized cannot be removed, resulting in granular PVC heat stabilizer powder, which affects subsequent use. Utility Model Content

[0004] To address the problems in the prior art, this utility model provides a PVC heat stabilizer impurity removal 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 heat stabilizer impurity removal device includes a screening box with an inclined inner bottom surface. A first collection groove is provided on one side of the screening box near the bottom edge. The top of the first collection groove extends into the interior of the screening box and connects with the inclined surface. Multiple filter ports are equidistantly provided on the inner bottom surface of the screening box at the inclined section. An installation groove is provided on the other side of the screening box, and one side of the installation groove extends below the inclined bottom of the screening box.

[0007] Optionally, a second collection trough is provided on the other side of the screening box, the top of the second collection trough extending above the mounting groove and located below the inclined surface at the bottom of the screening box.

[0008] Optionally, a plurality of air vents are provided at equal intervals on one side of the inner wall of the mounting groove, and one end of each of the plurality of air vents penetrates into the interior of the second collecting groove.

[0009] Optionally, one end of each of the multiple air outlets is inclined toward the filter port, and a guide plate is inclinedly fixed to the bottom surface of the mounting groove near one side edge.

[0010] Optionally, a sealing plate is provided between the inner walls of the mounting groove, and multiple motors are provided on the sealing plate, with multiple blades fixed to the output ends of each of the multiple motors.

[0011] Optionally, a material bin is provided on the other side of the screening box near the top edge, and one side of the material bin is connected to the interior of the screening box.

[0012] Optionally, a discharge pipe is provided on the other side of the screening box near the top edge, and an arc-shaped surface is provided on the inner top surface of the screening box.

[0013] By adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art. Of course, any product implementing this utility model does not necessarily need to achieve all of the following advantages at the same time:

[0014] 1. In this utility model, during actual use, PVC heat stabilizer powder is placed inside the material box. Inside the material box, the PVC heat stabilizer powder flows into the screening box from the bottom outlet. Inside the screening box, the PVC heat stabilizer powder is first guided by the bottom inclined surface so that it can flow downward evenly. During the flow, the motor drives the blades to rotate, thereby generating airflow. The generated airflow blows towards the filter port, so that the powdered PVC heat stabilizer can be mixed into the airflow and flow into the discharge pipe for discharge.

[0015] 2. In this utility model, a portion of the larger PVC heat stabilizer powder particles flows into the interior of the first collection tank along the bottom inclined surface, while the other portion of particles that meet the screening size of the filter port flow into the interior of the second collection tank. A guide plate is inclinedly set on the bottom surface of the installation tank so that the airflow generated by the blades can flow towards the air outlet and will not cause turbulence at the bottom of the installation tank. At the same time, an arc-shaped surface is set on the top surface of the screening box to guide the airflow at the top so that it flows better to the discharge pipe. 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 1 This utility model provides a three-dimensional structural diagram of one side of a PVC heat stabilizer impurity removal device;

[0018] Figure 2 This utility model provides a three-dimensional structural diagram of the other side of a PVC heat stabilizer impurity removal device;

[0019] Figure 3 This utility model provides a cross-sectional three-dimensional structural diagram of a PVC heat stabilizer impurity removal device.

[0020] The attached diagram lists the components represented by each number as follows:

[0021] 1. Screening box; 2. Sealing plate; 3. Material box; 4. Discharge pipe; 5. First collection tank; 6. Second collection tank; 7. Arc-shaped surface; 8. Filter port; 9. Mounting slot; 10. Motor; 11. Guide plate; 12. Air outlet; 13. Blade.

[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 heat stabilizer impurity removal device: it includes a screening box 1, the bottom surface of the screening box 1 is inclined, a first collection groove 5 is provided on one side of the screening box 1 near the bottom edge, the top of the first collection groove 5 extends into the interior of the screening box 1 and connects with the inclined surface, a plurality of filter ports 8 are provided at equal intervals on the bottom surface of the screening box 1 at the inclined position, and an installation groove 9 is provided on the other side of the screening box 1, one side of the installation groove 9 extends to the bottom of the screening box 1 below the inclined position.

[0025] The effect achieved by the entire embodiment 1 is that, in actual use, PVC heat stabilizer powder is placed inside the material box 3. Inside the material box 3, the PVC heat stabilizer powder flows into the screening box 1 from the bottom outlet. Inside the screening box 1, the PVC heat stabilizer powder is first guided by the bottom inclined surface so that it can flow downward evenly. During the flow, the motor 10 drives the blade 13 to rotate, thereby generating airflow. The generated airflow blows towards the filter port 8, so that the powdered PVC heat stabilizer can be mixed into the airflow and flow into the discharge pipe 4 for discharge.

[0026] Example 2, as Figure 1-3 As shown, a second collection trough 6 is provided on the other side of the screening box 1. The top of the second collection trough 6 extends above the mounting trough 9 and is located below the inclined surface of the bottom of the screening box 1. Multiple air outlets 12 are provided at equal intervals on one side of the inner wall of the mounting trough 9. One end of each of the multiple air outlets 12 penetrates into the interior of the second collection trough 6. One end of each of the multiple air outlets 12 is inclined towards the filter port 8. A guide plate 11 is inclinedly fixed on the bottom surface of the mounting trough 9 near one side edge. A sealing plate 2 is provided between the inner walls of the mounting trough 9. Multiple motors 10 are provided on the sealing plate 2. Multiple blades 13 are fixed at the output ends of the multiple motors 10. A material box 3 is provided on the other side of the screening box 1 near the top edge. One side of the material box 3 is connected to the interior of the screening box 1. A discharge pipe 4 is provided on the other side of the screening box 1 near the top edge. An arc-shaped surface 7 is provided on the top surface of the interior of the screening box 1.

[0027] The overall effect of embodiment 2 is that a portion of the larger PVC heat stabilizer powder flows into the interior of the first collection tank 5 along the bottom inclined surface, while the other portion of the particles that meet the screening size of the filter port 8 flow into the interior of the second collection tank 6. The guide plate 11 is inclinedly set on the bottom surface of the installation tank 9 so that the airflow generated by the blade 13 can flow towards the air outlet 12 and will not cause turbulence at the bottom of the installation tank 9. At the same time, the arc-shaped surface 7 is set on the top surface of the screening box 1 so as to guide the airflow at the top and make it flow better to the discharge pipe 4.

[0028] Working principle: In actual use, PVC heat stabilizer powder is placed inside the material box 3. Inside the material box 3, the PVC heat stabilizer powder flows into the screening box 1 from the bottom outlet. Inside the screening box 1, the powder is first guided by the bottom inclined surface, so that the PVC heat stabilizer powder can flow downward evenly. During the flow, the motor 10 drives the blades 13 to rotate, thereby generating airflow. The generated airflow blows towards the filter port 8, so that the powdered PVC heat stabilizer can be mixed into the airflow and flow into the discharge pipe 4 for discharge. Larger PVC heat stabilizer powder particles flow into the first collection tank 5 along the bottom inclined surface, while the other part, which meets the screening size of the filter port 8, flows into the second collection tank 6. The guide plate 11 is inclinedly set on the bottom surface of the mounting tank 9, so that the airflow generated by the blades 13 can flow towards the air outlet 12, and there will be no turbulence at the bottom of the mounting tank 9. At the same time, the arc-shaped surface 7 is set on the top surface of the screening box 1, which can guide the airflow at the top, so that it flows better towards the discharge pipe 4.

[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 heat stabilizer impurity removal equipment, comprising a screening box (1), characterized in that: The bottom surface of the screening box (1) is inclined. A first collection groove (5) is provided on one side of the screening box (1) near the bottom edge. The top of the first collection groove (5) extends into the interior of the screening box (1) and connects with the inclined surface. Multiple filter ports (8) are provided at equal intervals on the bottom surface of the screening box (1) at the inclined position. An installation groove (9) is provided on the other side of the screening box (1). One side of the installation groove (9) extends to the bottom of the inclined position of the screening box (1).

2. The PVC heat stabilizer impurity removal equipment according to claim 1, characterized in that: A second collection groove (6) is provided on the other side of the screening box (1). The top of the second collection groove (6) extends above the mounting groove (9) and is located below the bottom inclined surface of the screening box (1).

3. The PVC heat stabilizer impurity removal device according to claim 2, characterized in that: The mounting groove (9) has multiple air outlets (12) equidistantly opened on one side inner wall, and one end of each of the multiple air outlets (12) penetrates into the interior of the second collection groove (6).

4. The PVC heat stabilizer impurity removal device according to claim 3, characterized in that: One end of each of the multiple air outlets (12) is inclined toward the filter port (8), and a guide plate (11) is inclinedly fixed on the bottom surface of the mounting groove (9) near one side edge.

5. The PVC heat stabilizer impurity removal device according to claim 4, characterized in that: A sealing plate (2) is provided between the inner walls of the mounting groove (9), and multiple motors (10) are provided on the sealing plate (2). Multiple blades (13) are fixed at the output ends of the multiple motors (10).

6. The PVC heat stabilizer impurity removal device according to claim 5, characterized in that: A material box (3) is provided on the other side of the screening box (1) near the top edge, and one side of the material box (3) is connected to the interior of the screening box (1).

7. The PVC heat stabilizer impurity removal device according to claim 6, characterized in that: A discharge pipe (4) is provided on the other side of the screening box (1) near the top edge, and an arc-shaped surface (7) is provided on the inner top surface of the screening box (1).