Reaction kettle for preparing PVC (polyvinyl chloride) stabilizer
By introducing mixing and installation components into the reactor, the problem of insufficient cleaning of the inner wall was solved, achieving efficient cleaning and convenient disassembly and assembly, thus improving the efficiency and quality of PVC stabilizer preparation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SANDIA TECH (JIANGSU) CO LTD
- Filing Date
- 2025-05-29
- Publication Date
- 2026-05-12
AI Technical Summary
现有反应釜在PVC稳定剂制备过程中,内壁清洁不充分导致物料浪费和使用效率降低。
A reactor comprising a mixing component and an installation component was designed. The mixing component uses a servo motor to drive a scraper and a mixing ring to clean the inner wall. The installation component achieves a sealed connection through an elastic limiting rod and a sealing installation ring, thereby improving cleaning efficiency and ease of assembly and disassembly.
It effectively prevents material adhesion, improves the cleaning and usage efficiency of the reactor, and enhances the practicality of the reactor.
Smart Images

Figure CN224221352U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of PVC stabilizer preparation technology, specifically a reaction vessel for PVC stabilizer preparation. Background Technology
[0002] PVC stabilizers are additives that improve the thermal stability of polyvinyl chloride (PVC). PVC is a polymer material formed by the polymerization of vinyl chloride monomer under the action of an initiator. It has excellent mechanical properties, chemical resistance, electrical insulation, flame retardancy, and ease of processing, and is widely used in building materials, industry, agriculture, packaging, daily necessities, and medical fields. The preparation of PVC stabilizers involves manufacturing additives that improve the thermal stability of PVC materials through specific chemical and technological processes. These additives play a crucial role in the processing and use of PVC, preventing its degradation due to heat, light, oxygen, and other factors, thereby ensuring the quality and durability of PVC products. To improve the efficiency of PVC stabilizer preparation, a reaction vessel is needed; however, existing reaction vessels still have the following shortcomings:
[0003] For example, the utility model with publication number CN221334194U discloses a reaction vessel for the production and preparation of PVC heat stabilizer. The inner side of the top center of this utility model is connected to the outer side of the movable sleeve. The input end of the reducer is connected to the stirring drive motor, and the output end of the reducer is connected to the top of the stirring rod. The movable sleeve is movably fitted onto the upper part of the outer side of the stirring rod. However, similar to the prior art of the above application, when using existing reaction vessels, since most reaction vessels do not have a structure for cleaning the inner wall, it is easy to waste materials during the subsequent discharge process. At the same time, insufficient cleaning can affect the production and processing of other materials, resulting in a decrease in the practicality and efficiency of the reaction vessel. Utility Model Content
[0004] The purpose of this invention is to provide a reaction vessel for preparing PVC stabilizers to solve the problems mentioned in the background art.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a reaction vessel for preparing PVC stabilizer, comprising a main vessel body and a mixing assembly. The main vessel body has supporting columns installed at its bottom and a top cover at its upper end, with a feed inlet on the left side of the top cover. The mixing assembly is located inside the main vessel body and includes a servo motor, a support rod, a mounting crossbar, a scraper, a mixing ring, a water pipe, a water collection chamber, and a water outlet. The front end of the servo motor is connected to the support rod, and a mounting crossbar is installed outside the support rod. A scraper is added to the front end of the mounting crossbar. A mixing ring is located at the middle of the outer side of the support rod. A water pipe is located at the upper right side of the main vessel body, with a water collection chamber connected to its front end. A water outlet is installed inside the water collection chamber. An mounting assembly is located at the upper outer side of the main vessel body.
[0006] Furthermore, the mounting crossbar is perpendicular to the scraper plate, and the mounting crossbar is fixedly connected to the scraper plate by bolts.
[0007] Furthermore, the scraper is embedded in the main vessel body, and the outer side of the scraper is tightly fitted to the inner wall of the main vessel body.
[0008] Furthermore, the water outlets are equidistantly distributed inside the water collection cavity, and the water outlets are fixedly connected to the water collection cavity by bolts.
[0009] Furthermore, the mounting assembly includes a receiving ring, a limiting cylinder, a limiting rod, and a return spring. The receiving ring is externally mounted with a limiting cylinder, and the limiting cylinder is internally mounted with a limiting rod. A return spring is located inside the limiting cylinder outside the limiting rod.
[0010] Furthermore, the mounting assembly also includes a mounting groove, a sealing mounting ring, and a limiting through groove. The mounting groove is provided inside the receiving ring, and the sealing mounting ring is connected inside the mounting groove. The limiting through groove is provided inside the sealing mounting ring.
[0011] Furthermore, the limiting rod and the limiting cylinder are embedded in each other, and the limiting rod is elastically connected to the limiting cylinder through a return spring.
[0012] Furthermore, the external dimensions of the limiting rod are adapted to the internal dimensions of the limiting through groove, and the limiting rod is connected to the sealing mounting ring through the limiting through groove.
[0013] This invention provides a reaction vessel for preparing PVC stabilizers, which has the following beneficial effects:
[0014] 1. This utility model, through the setting of the mixing component, enables the use of the PVC stabilizer preparation reactor. The servo motor at the top of the top cover drives the support rod to rotate, causing the mounting crossbar and mixing ring installed on the outside of the support rod to rotate inside the main reactor body. The mounting crossbar, in conjunction with the mixing ring, mixes the materials inside the reactor. Simultaneously, a scraper is fixedly installed at the front end of the mounting crossbar, scraping the inner wall of the main reactor body to prevent material from adhering to the inside of the main reactor body. Clean water is supplied to the water collection chamber through the water pipe, and the water outlet evenly distributes the clean water inside the main reactor body. The clean water sprayed from the outlet cleans the inside of the main reactor body, improving the overall cleaning efficiency of the reactor and increasing its overall practicality and usage efficiency.
[0015] 2. By setting up the installation components, this utility model enables the limiting rod and the limiting cylinder to be elastically connected by the return spring when the PVC stabilizer preparation reactor is used. The sealing installation ring is installed into the receiving ring by the installation groove. At the same time, the sealing installation ring is limited and installed in the installation groove by the limiting rod and the limiting through groove, thereby completing the sealing connection between the top cover and the main reactor body. This makes the overall assembly and disassembly of the reactor time-saving and labor-saving, and increases the overall practicality and efficiency of the reactor. Attached Figure Description
[0016] Figure 1 This is a three-dimensional structural diagram of a reaction vessel for preparing a PVC stabilizer according to the present invention;
[0017] Figure 2 This is a three-dimensional unfolded structural diagram of the mixing component of a reaction vessel for preparing a PVC stabilizer according to the present invention.
[0018] Figure 3 This is a three-dimensional sectional view of the installation components of a reaction vessel for preparing a PVC stabilizer according to this utility model.
[0019] In the diagram: 1. Main vessel body; 2. Support column leg; 3. Top cover; 4. Feed inlet; 5. Mixing assembly; 501. Servo motor; 502. Support rod; 503. Mounting crossbar; 504. Scraper; 505. Mixing ring; 506. Water supply pipe; 507. Water collection chamber; 508. Water outlet; 6. Mounting assembly; 601. Receiving ring; 602. Limiting cylinder; 603. Limiting rod; 604. Return spring; 605. Mounting groove; 606. Sealing mounting ring; 607. Limiting through groove. Detailed Implementation
[0020] The embodiments of this utility model will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of this utility model.
[0021] like Figure 1 and Figure 2 As shown, a reaction vessel for preparing PVC stabilizer includes a main vessel body 1 and a mixing assembly 5. The main vessel body 1 has a supporting column leg 2 installed at its bottom, and a top cover 3 is provided at the upper end of the main vessel body 1. A feed inlet 4 is provided on the left side of the upper end of the top cover 3. The mixing assembly 5 is installed inside the main vessel body 1, and the mixing assembly 5 includes a servo motor 501, a support rod 502, a mounting crossbar 503, a scraper 504, a mixing ring 505, a water supply pipe 506, a water collection chamber 507, and a water outlet 508. The front end of the servo motor 501 is connected to the support rod 502, and a mounting crossbar 502 is installed on the outside of the support rod 502. A crossbar 503 is installed, and a scraper 504 is added to the front end of the crossbar 503. A mixing ring 505 is set at the middle of the outer side of the support rod 502. A water supply pipe 506 is set at the upper right side of the main vessel body 1, and the front end of the water supply pipe 506 is connected to a water collection chamber 507. A water outlet 508 is installed inside the water collection chamber 507. The crossbar 503 and the scraper 504 are arranged perpendicularly, and the crossbar 503 is fixedly connected to the scraper 504 by bolts. The scraper 504 is embedded in the main vessel body 1, and the outer side of the scraper 504 is tightly fitted to the inner wall of the main vessel body 1. The water outlets 508 are equidistantly distributed inside the water collection chamber 507, and the water outlets 508 and the water collection chamber 507 are fixedly connected by bolts. The servo motor 501 is fixedly installed in the middle of the upper end of the top cover 3 by fastening bolts. The output shaft of the servo motor 501 is connected to the support rod 502 through a coupling. The operation of the servo motor 501 drives the support rod 502 to rotate, causing the mounting crossbar 503 and the mixing ring 505 installed on the outside of the support rod 502 to rotate inside the main vessel body 1. The mounting crossbar 503 and the mixing ring 505 work together to mix the materials inside the reactor. Meanwhile, the scraper 504 is fixedly installed at the front end of the mounting crossbar 503. The scraper 504 is used to scrape the inner wall of the main vessel 1, thereby preventing the material from adhering to the inside of the main vessel 1. The water collection chamber 507 is fixedly installed at the upper end of the inside of the main vessel 1. Clean water is delivered into the water collection chamber 507 through the water pipe 506, and the water outlet 508 is used to evenly deliver clean water into the inside of the main vessel 1. The clean water sprayed from the water outlet 508 is used to clean the inside of the main vessel 1, thereby improving the overall cleaning efficiency of the reactor and increasing the overall practicality and efficiency of the reactor.
[0022] like Figure 1 and Figure 3As shown, an installation assembly 6 is provided on the upper part of the main vessel body 1. The installation assembly 6 includes a receiving ring 601, a limiting cylinder 602, a limiting rod 603, and a return spring 604. The limiting cylinder 602 is installed on the outside of the receiving ring 601, and the limiting rod 603 is provided inside the limiting cylinder 602. The return spring 604 is provided inside the limiting cylinder 602 outside the limiting rod 603. The installation assembly 6 also includes an installation groove 605, a sealing installation ring 606, and a limiting through groove 607. The receiving ring 601 has an internal mounting groove 605, and a sealing mounting ring 606 is connected inside the mounting groove 605. The sealing mounting ring 606 has an internal limiting groove 607. A limiting rod 603 is embedded in the limiting cylinder 602, and the limiting rod 603 is elastically connected to the limiting cylinder 602 via a return spring 604. The external dimensions of the limiting rod 603 are adapted to the internal dimensions of the limiting groove 607, and the limiting rod 603 passes through the limiting groove 607. The sealing ring 606 is connected to the limiting cylinder 602, which is fixed to the outside of the receiving ring 601 by fastening bolts. The limiting rod 603 is installed inside the limiting cylinder 602. At the same time, the limiting rod 603 and the limiting cylinder 602 are elastically connected by the return spring 604. The internal dimensions of the mounting groove 605 opened inside the receiving ring 601 are adapted to the external dimensions of the sealing ring 606 added to the lower end of the top cover 3. Thus, the sealing ring 606 is installed into the receiving ring 601 through the mounting groove 605. At the same time, the internal dimensions of the limiting through groove 607 opened inside the sealing ring 606 are adapted to the external dimensions of the limiting rod 603. Thus, the sealing ring 606 is limited and installed inside the mounting groove 605 by the limiting rod 603 and the limiting through groove 607. This completes the sealing and docking installation of the top cover 3 and the main vessel body 1, making the overall disassembly and assembly of the reactor time-saving and labor-saving, and increasing the overall practicality and efficiency of the reactor.
[0023] In summary, the PVC stabilizer preparation reactor, during use, firstly, increases the stability of the equipment during operation through the support column legs 2 installed at the bottom of the main reactor body 1. The limit rod 603 and the limit cylinder 602 are elastically connected by the return spring 604. The sealing installation ring 606 is then installed into the receiving ring 601 via the installation groove 605. Simultaneously, the sealing installation ring 606 is limited and installed inside the installation groove 605 by the limit rod 603 in conjunction with the limit through groove 607, thus completing the sealed connection between the top cover 3 and the main reactor body 1. The material to be processed is then fed into the main reactor body 1 through the feed inlet 4 located on the upper left side of the top cover 3. Next, the servo motor 501 in the middle of the upper part of the top cover 3 drives the support rod 502 to rotate, thus allowing the support rod 502 to be externally mounted... The mounting crossbar 503 and mixing ring 505 rotate inside the main vessel body 1. The mounting crossbar 503 and mixing ring 505 work together to mix the materials inside the reactor. At the same time, the scraper 504 is fixedly installed at the front end of the mounting crossbar 503. The scraper 504 scrapes the inner wall of the main vessel body 1 to prevent the material from adhering to the inside of the main vessel body 1. The water collection chamber 507 is fixedly installed at the upper end of the inside of the main vessel body 1. Clean water is delivered into the water collection chamber 507 through the water pipe 506. The water outlet 508 is used to evenly deliver clean water into the inside of the main vessel body 1. The clean water sprayed from the water outlet 508 is used to clean the inside of the main vessel body 1, improving the overall cleaning efficiency of the reactor and increasing the overall practicality and efficiency of the reactor.
[0024] The embodiments of this utility model are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the utility model to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described in order to better illustrate the principles and practical applications of this utility model, and to enable those skilled in the art to understand this utility model and design various embodiments with various modifications suitable for a particular purpose.
Claims
1. A reaction vessel for preparing a PVC stabilizer, comprising a main vessel body (1) and a mixing assembly (5), characterized in that, The main vessel body (1) is equipped with a support column leg (2) at the bottom, and a top cover (3) is provided at the upper end of the main vessel body (1). A feed inlet (4) is provided on the left side of the upper end of the top cover (3). A mixing component (5) is provided inside the main vessel body (1). The mixing component (5) includes a servo motor (501), a support rod (502), a mounting crossbar (503), a scraper (504), a mixing ring (505), a water supply pipe (506), a water collection chamber (507), and a water outlet (508). The front end of the servo motor (501) A support rod (502) is connected, and an installation crossbar (503) is installed on the outside of the support rod (502). A scraper (504) is added to the front end of the installation crossbar (503). A mixing ring (505) is provided at the middle of the outside of the support rod (502). A water supply pipe (506) is provided at the upper right side of the main vessel body (1). A water collection chamber (507) is connected to the front end of the water supply pipe (506). A water outlet (508) is installed inside the water collection chamber (507). An installation assembly (6) is provided at the upper outside of the main vessel body (1).
2. The reaction vessel for preparing PVC stabilizer according to claim 1, characterized in that, The mounting crossbar (503) is perpendicular to the scraper plate (504), and the mounting crossbar (503) is fixedly connected to the scraper plate (504) by bolts.
3. The reaction vessel for preparing PVC stabilizer according to claim 1, characterized in that, The scraper (504) is embedded in the main vessel body (1), and the outer side of the scraper (504) is tightly fitted to the inner wall of the main vessel body (1).
4. The reaction vessel for preparing PVC stabilizer according to claim 1, characterized in that, The water outlets (508) are equidistantly distributed inside the water collection cavity (507), and the water outlets (508) and the water collection cavity (507) are fixedly connected by bolts.
5. The reaction vessel for preparing PVC stabilizer according to claim 1, characterized in that, The mounting assembly (6) includes a receiving ring (601), a limiting cylinder (602), a limiting rod (603), and a return spring (604). The receiving ring (601) is externally mounted with a limiting cylinder (602), and a limiting rod (603) is provided inside the limiting cylinder (602). A return spring (604) is provided inside the limiting cylinder (602) outside the limiting rod (603).
6. The reaction vessel for preparing PVC stabilizer according to claim 5, characterized in that, The mounting assembly (6) further includes a mounting groove (605), a sealing mounting ring (606), and a limiting through groove (607). The receiving ring (601) has a mounting groove (605) inside, and the mounting groove (605) is connected to the sealing mounting ring (606). The sealing mounting ring (606) has a limiting through groove (607) inside.
7. The reaction vessel for preparing a PVC stabilizer according to claim 6, characterized in that, The limiting rod (603) is embedded in the limiting cylinder (602), and the limiting rod (603) is elastically connected to the limiting cylinder (602) through a return spring (604).
8. The reaction vessel for preparing a PVC stabilizer according to claim 6, characterized in that, The external dimensions of the limiting rod (603) are adapted to the internal dimensions of the limiting through groove (607), and the limiting rod (603) is connected to the sealing mounting ring (606) through the limiting through groove (607).