A catalyst addition device for a reaction vessel

By designing a filter plate and a mechanical vibration system in the reactor, the problem of impurities mixed in due to unfiltered catalyst was solved, achieving efficient and low-cost catalyst addition and improving product quality and production efficiency.

CN224271102UActive Publication Date: 2026-05-26ZHEJIANG YISHENG PETROCHEM

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
ZHEJIANG YISHENG PETROCHEM
Filing Date
2025-06-04
Publication Date
2026-05-26

AI Technical Summary

Technical Problem

In existing technologies, the catalyst is not filtered before addition, which leads to mechanical impurities and crystals being mixed into the reaction system, affecting product quality and catalytic efficiency, and increasing production costs.

Method used

A catalyst addition device for a reactor was designed, comprising a filter plate, a servo motor-driven turntable, and an elastic rod system. The filter plate intercepts impurities and uses mechanical vibration to prevent clogging. The magnetic connection facilitates the installation and removal of the filter plate.

Benefits of technology

It significantly reduces the impurity content in products, improves product purity and stability, increases production efficiency, reduces downtime, lowers maintenance costs, and has a simple structure and is easy to operate.

✦ Generated by Eureka AI based on patent content.

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Abstract

This utility model belongs to the field of chemical equipment technology, specifically a catalyst addition device for a reaction vessel, including a reaction vessel body; a guide pipe is fixedly connected to the top of the reaction vessel body; the guide pipe penetrates the surface of the reaction vessel body; a support rod is fixedly connected to the bottom of the guide pipe; and a feed inlet is provided at the top of the guide pipe. Through the filter plate structure, this design is not only simple and convenient to operate, but also intercepts mechanical impurities and crystals in the catalyst through the filter plate, preventing impurities from entering the reaction system, thereby significantly reducing the impurity content in the product, such as metal ions and solid particles, improving product purity and stability, and further improving processing quality. Moreover, the mechanical vibration achieves an anti-clogging function, reducing downtime caused by cleaning the filter device and greatly improving production efficiency. Compared with complex electronic induction or hydraulic backwashing systems, it has the advantages of simple structure and low maintenance cost.
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Description

Technical Field

[0001] This utility model belongs to the field of chemical equipment technology, specifically a catalyst addition device for a reaction vessel. Background Technology

[0002] With the development of society, reaction vessels are often needed in other fields such as chemical industry, pharmaceutical industry, food and daily chemical industry, energy and environmental protection industry, and materials and polymer industry. A reaction vessel is a closed container used to realize chemical reactions (such as polymerization, hydrogenation, oxidation, neutralization, etc.).

[0003] The catalyst addition device in a reactor is an auxiliary device used to precisely, safely, and controllably add catalysts to the reaction system. Catalysts play a role in lowering the activation energy and accelerating the reaction rate in chemical reactions, but due to their properties or process requirements, they need to be added efficiently through specialized equipment.

[0004] In existing technologies, long-term observation has revealed that existing catalysts are generally not filtered before addition. Mechanical impurities (such as metal scraps, dust, and broken particles) or crystals (such as salt precipitates) in the unfiltered catalyst enter the feeding pipeline with the material and are difficult to completely remove through subsequent processes (such as the difficulty in separating micron-sized solid impurities by distillation). Unfiltered impurities will mix into the final product, leading to a decline in product quality. For example, in chemical synthesis or refining processes, metal scraps and dust may become impurities, affecting the purity and performance of the product. Moreover, impurities may cover the catalyst surface, reducing the effective active sites of the catalyst and thus reducing catalytic efficiency. This not only increases production costs but may also lead to incomplete reactions, affecting product quality. Therefore, a catalyst addition device for a reactor is proposed to address the above problems. Utility Model Content

[0005] In order to overcome the shortcomings of the prior art and solve at least one of the technical problems mentioned in the background art, this utility model proposes a catalyst addition device for a reaction vessel.

[0006] The technical solution adopted by this utility model to solve its technical problem is as follows: A catalyst addition device for a reaction vessel according to this utility model includes a reaction vessel body; a guide pipe is fixedly connected to the top of the reaction vessel body; the guide pipe penetrates the surface of the reaction vessel body; a support rod is fixedly connected to the bottom end of the guide pipe; a feed inlet is provided at the top of the guide pipe; a filter plate is provided at the top of the feed inlet; a connecting frame is fixedly connected to the side wall of the reaction vessel body; a servo motor is fixedly connected to the side wall of the connecting frame; a rotating shaft is fixedly connected to the output end of the servo motor; a turntable is fixedly connected to the end of the rotating shaft; multiple sets of elastic rods are fixedly connected to the side wall of the turntable; a ball is fixedly connected to the end of the elastic rod; an elastic sheet is fixedly connected to the side wall of the guide pipe; and multiple sets of support legs are fixedly connected to the side wall of the reaction vessel body.

[0007] Preferably, the top of the feed inlet is symmetrically provided with mounting grooves, and a first magnetic block is fixedly connected to the side wall of the mounting groove; a second magnetic block is symmetrically fixedly connected to the bottom of the filter plate; the connection between the second magnetic block and the first magnetic block is a magnetic connection.

[0008] Preferably, the top of the filter plate is symmetrically fixed with pull rings; the inner sidewall of the pull ring is fixed with an anti-slip sleeve.

[0009] Preferably, multiple sets of connecting rods are fixed to the side wall of the feed inlet; a limiting cylinder is provided at the top of the feed inlet; the limiting cylinder is connected to the side wall of the feed inlet through the connecting rods.

[0010] Preferably, the side wall of the reactor body is fixed with multiple sets of observation windows; one side of each observation window is provided with multiple sets of scale lines.

[0011] Preferably, a rubber pad is provided at the bottom end of the support leg; the rubber pad is connected to the support leg by adhesive bonding.

[0012] The beneficial effects of this utility model are:

[0013] This invention provides a catalyst addition device for a reaction vessel. Through the design of the filter plate structure, this design is not only simple and convenient to operate, but also intercepts mechanical impurities and crystals in the catalyst by the filter plate, preventing impurities from entering the reaction system. This significantly reduces the impurity content in the product, such as metal ions and solid particles, improving product purity and stability, and further enhancing processing quality. Moreover, the mechanical vibration achieves an anti-clogging function, reducing downtime caused by cleaning the filter device and greatly improving production efficiency. At the same time, compared with complex electronic induction or hydraulic backwashing systems, it has the advantages of simple structure and low maintenance cost.

[0014] This utility model provides a catalyst adding device for a reactor. Through the setting of a first magnetic block and a second magnetic block structure, this design facilitates the installation and disassembly of the filter plate by the operator, and eliminates the need to use tools such as wrenches to disassemble the filter plate, avoiding problems such as bolt stripping and thread damage, extending the service life of the feed inlet and the filter plate. Moreover, the tight fit between the first magnetic block and the second magnetic block ensures that there is no leakage at the edge of the filter plate, improving the impurity interception efficiency. Attached Figure Description

[0015] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and are used to explain the present invention, but do not constitute an undue limitation of the present invention.

[0016] In the attached diagram:

[0017] Figure 1 This is a perspective view of the present invention;

[0018] Figure 2 This is a perspective view of the observation window in this utility model;

[0019] Figure 3 This is a three-dimensional view of the bouncing ball in this utility model;

[0020] Figure 4 This is a perspective view of the filter plate in this utility model.

[0021] Legend:

[0022] 1. Reactor body; 10. Guide pipe; 11. Support rod; 12. Feed inlet; 13. Filter plate; 14. Connecting frame; 15. Servo motor; 16. Rotating shaft; 17. Turntable; 18. Elastic rod; 19. Ball; 110. Elastic sheet; 111. Support leg; 2. Mounting groove; 21. First magnetic block; 22. Second magnetic block; 3. Pull ring; 31. Anti-slip sleeve; 4. Connecting rod; 41. Limiting cylinder; 5. Observation window; 51. Scale line; 6. Rubber pad. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0024] Specific implementation examples are given below.

[0025] Please see Figures 1-4This utility model provides a catalyst addition device for a reactor, including a reactor body 1; a guide pipe 10 is fixedly connected to the top end of the reactor body 1; the guide pipe 10 penetrates the surface of the reactor body 1; a support rod 11 is fixedly connected to the bottom end of the guide pipe 10; a feed inlet 12 is provided at the top end of the guide pipe 10; a filter plate 13 is provided at the top end of the feed inlet 12; a connecting frame 14 is fixedly connected to the side wall of the reactor body 1; a servo motor 15 is fixedly connected to the side wall of the connecting frame 14; a rotating shaft 16 is fixedly connected to the output end of the servo motor 15; a turntable 17 is fixedly connected to the end of the rotating shaft 16; multiple sets of elastic rods 18 are fixedly connected to the side wall of the turntable 17; a ball 19 is fixedly connected to the end of the elastic rod 18; and an elastic sheet 110 is fixedly connected to the side wall of the guide pipe 10.

[0026] Multiple sets of support legs 111 are fixed to the side wall of the reactor body 1. During operation, before the catalyst enters the conveying pipe 10 from the feed inlet 12, it first passes through the filter plate 13. The mesh structure of the filter plate 13 can intercept mechanical impurities in the catalyst, such as metal fragments, dust, and crystals such as salt precipitates, allowing only catalyst particles that meet the particle size requirements to pass through, thereby preventing impurities from entering the reactor body 1. Moreover, the servo motor 15 is fixed to the side wall of the reactor body 1 through the connecting frame 14, and its output end drives the rotating shaft 16 to rotate, which drives the turntable 17 to rotate synchronously. The elastic rod 18 and the ball 19 on the turntable 17 move in a circular motion with the turntable 17. When the ball 19 hits the elastic plate 110 on the side wall of the conveying pipe 10, the elastic plate 110 vibrates and transmits the vibration to the conveying pipe 10. This vibration can effectively prevent the accumulation of impurities on the filter plate 13 or the catalyst. The catalyst particles are bridged to ensure smooth feeding. After filtration, the catalyst enters the reactor body 1 through the guide pipe 10. The guide pipe 10 passes through the top of the reactor body 1 and is fixed by the support rod 11 to ensure accurate delivery of the catalyst to the reaction area. The support leg 111 provides structural support for the entire device. This design is not only simple and convenient to operate, but also intercepts mechanical impurities and crystals in the catalyst through the filter plate 13, preventing impurities from entering the reaction system. This significantly reduces the impurity content in the product, such as metal ions and solid particles, improving product purity and stability, and further improving processing quality. Moreover, the mechanical vibration achieves anti-clogging function, reducing downtime caused by cleaning the filter device and greatly improving production efficiency. At the same time, compared with complex electronic induction or hydraulic backwashing systems, it has the advantages of simple structure and low maintenance cost.

[0027] Furthermore, such as Figures 1-4As shown, pull rings 3 are symmetrically fixed to the top of the filter plate 13; anti-slip sleeves 31 are fixed to the inner wall of the pull rings 3. During operation, the pull rings 3 are symmetrically fixed to the top of the filter plate 13, serving as the operating force point. When it is necessary to disassemble the filter plate 13, the operator can directly grasp the pull rings 3 and apply upward force to remove the filter plate 13 from the feed inlet 12. The anti-slip sleeves 31 are tightly fitted to the inner wall of the pull rings 3, and their surface is rough or made of anti-slip materials such as rubber. During the process of the operator holding the pull rings 3, the friction between the hand and the pull rings 3 is increased, avoiding slippage caused by friction. Slipping of the hand can cause the filter plate 13 to fall accidentally or cause inconvenience in operation. At the same time, it provides cushioning for the hand and reduces operator fatigue. When it is necessary to install the filter plate 13, it can also be accurately placed at the feed inlet 12 by holding the pull ring 3. It is fixed by the magnetic connection of the first magnetic block 21 and the second magnetic block 22. This design makes it easy for the staff to pick up the filter plate 13, reducing the time cost of equipment maintenance. Moreover, the anti-slip sleeve 31 increases the friction and effectively prevents the filter plate 13 from falling due to the operator's slipping hand during the disassembly process.

[0028] Furthermore, such as Figures 1-4 As shown, multiple sets of connecting rods 4 are fixed to the side wall of the feed inlet 12; a limiting cylinder 41 is provided at the top of the feed inlet 12; the limiting cylinder 41 is connected to the side wall of the feed inlet 12 through the connecting rods 4; during operation, one end of the multiple sets of connecting rods 4 is fixed to the side wall of the feed inlet 12, and the other end is connected to the limiting cylinder 41 to form a stable support structure. When adding catalyst, the catalyst is poured in from the top of the limiting cylinder 41. The limiting cylinder 41 plays a guiding and positioning role, guiding the catalyst to flow vertically and centrally to the filter plate 13, avoiding the catalyst from spilling out of the feed inlet 12 area. At the same time, the limiting cylinder 41 can prevent the catalyst from entering the guide pipe 10 directly without the filter plate 13 due to the excessive tilting angle when the operator adds the catalyst, ensuring that all catalyst entering the guide pipe 10 is filtered by the filter plate 13. Through this design, the limiting cylinder 41 and the connecting rods 4 form a barrier structure, which can limit the catalyst to a specific area, reduce the phenomenon of catalyst spillage when tilting, reduce material waste, and reduce production costs.

[0029] Furthermore, such as Figures 1-4As shown, multiple sets of observation windows 5 are fixed to the side wall of the reactor body 1; multiple sets of scale lines 51 are provided on one side of each observation window 5; during operation, the observation windows 5 are evenly distributed on the side wall of the reactor body 1, and are made of transparent, high-temperature and high-pressure resistant materials such as tempered glass and quartz glass, allowing operators to directly observe the material state, reaction phenomena, and liquid level inside the reactor. The scale lines 51 are arranged vertically along one side of the observation windows 5, and their zero point is usually aligned with the lowest effective liquid level of the reactor. By comparing the material liquid level with the scale lines 51, the liquid level inside the reactor can be accurately read. During the reaction, operators can monitor the reaction status after catalyst addition, such as color changes, bubble generation, and stirring effect, through the observation window 5. At the same time, they can use the scale line 51 to determine whether the amount of material added has reached the preset value, providing a direct basis for process control. This design allows operators to directly observe the mixing of materials and the reaction process in the reactor, promptly detect abnormalities such as local overheating and sedimentation blockage, and avoid accidents. Moreover, during the catalyst addition process, the scale line 51 can be used to accurately determine whether the amount added meets the formula requirements, avoiding the impact of excessive or insufficient addition on the reaction effect.

[0030] Furthermore, such as Figures 1-4 As shown, a rubber pad 6 is provided at the bottom end of the support leg 111; the rubber pad 6 is connected to the support leg 111 by adhesive bonding; during operation, the rubber pad 6 is firmly fixed to the bottom end of the support leg 111 by a high-strength adhesive, forming a buffer structure. When the reactor is running, the rotation of the agitator, the flow of materials, and the vibration mechanism driven by the servo motor 15 will all generate vibrations. These vibrations are transmitted to the ground through the support leg 111. The elastic properties of the rubber pad 6 enable it to absorb and disperse vibration energy, reducing the transmission of vibration to the ground. At the same time, the rubber pad 6 increases the contact area between the support leg 111 and the ground, and the friction coefficient between the rubber material and the ground is high, thereby enhancing the stability of the entire device and preventing the reactor from shifting or shaking due to vibration. Through this design, when the reactor body 1 is running, it can increase the friction with the ground, thereby improving the stability of the equipment.

[0031] Working principle: Before the catalyst enters the feed pipe 10 from the feed inlet 12, it first passes through the filter plate 13. The mesh structure of the filter plate 13 can intercept mechanical impurities in the catalyst, such as metal fragments, dust, and crystals such as salt precipitates, allowing only catalyst particles that meet the particle size requirements to pass through, thereby preventing impurities from entering the reactor body 1. Moreover, the servo motor 15 is fixed to the side wall of the reactor body 1 through the connecting frame 14, and its output end drives the rotating shaft 16 to rotate, which drives the turntable 17 to rotate synchronously. The elastic rod 18 on the turntable 17 and the spring Ball 19 moves in a circular motion with turntable 17. When ball 19 hits elastic plate 110 on the side wall of guide pipe 10, elastic plate 110 vibrates and the vibration is transmitted to guide pipe 10. This vibration can effectively prevent impurities from accumulating on filter plate 13 or catalyst particles from bridging, ensuring smooth feeding. The filtered catalyst enters reactor body 1 through guide pipe 10. Guide pipe 10 passes through the top of reactor body 1 and is fixed by support rod 11 to ensure accurate delivery of catalyst to the reaction area. Support leg 111 provides support for the entire device. The mounting grooves 2, symmetrically opened at the top of the feed inlet 12, provide structural support for the filter plate 13, positioning and supporting it. During installation, the second magnetic block 22 at the bottom of the filter plate 13 is aligned with the first magnetic block 21 in the mounting groove 2. The attraction between opposite magnetic poles, such as the attraction between the N pole and the S pole, makes the two stick together tightly, achieving rapid fixation of the filter plate 13. The magnetic connection between the first magnetic block 21 and the second magnetic block 22 ensures that there is no gap between the filter plate 13 and the feed inlet 12, preventing unfiltered catalyst from bypassing the edge and entering the guide pipe 10. The magnetic attraction can resist the impact force transmitted by the vibration of the elastic sheet 110, preventing the filter plate 13 from loosening or shifting. When it is necessary to clean or replace the filter plate 13, simply apply an appropriate external force to overcome the magnetic attraction, such as pulling the filter plate 13 upwards, and it can be separated from the feed inlet 12 without the need for tools. The operation is simple. The pull ring 3 is symmetrically fixed at the top of the filter plate 13 as the operating point. When it is necessary to disassemble the filter plate 13, the operator can directly hold the pull ring 3 and remove the filter plate 13 from the feed inlet 12 by applying upward force.The anti-slip sleeve 31 fits tightly against the inner wall of the pull ring 3. Its surface is rough or made of anti-slip material such as rubber. When the operator holds the pull ring 3, it increases the friction between the hand and the pull ring 3, preventing the filter plate 13 from accidentally falling off or causing inconvenience due to hand slippage. It also provides cushioning for the hand and reduces operator fatigue. When it is necessary to install the filter plate 13, it can also be accurately placed at the feed inlet 12 by holding the pull ring 3. It is fixed by the magnetic connection of the first magnetic block 21 and the second magnetic block 22. One end of the multiple sets of connecting rods 4 is fixed to the side wall of the feed inlet 12, and the other end is connected to the limiting cylinder 41. A stable support structure is formed. When adding catalyst, the catalyst is poured in from the top of the limiting cylinder 41. The limiting cylinder 41 acts as a guide and positioner, directing the catalyst vertically and centrally towards the filter plate 13, preventing the catalyst from spilling out of the feed inlet 12 area. At the same time, the limiting cylinder 41 can prevent the catalyst from entering the guide pipe 10 directly without passing through the filter plate 13 due to excessive tilting angle when the operator adds catalyst, ensuring that all catalyst entering the guide pipe 10 is filtered by the filter plate 13. The observation windows 5 are evenly distributed on the side wall of the reactor body 1, and are made of transparent, high-temperature and high-pressure resistant materials such as tempered glass and stone. Made of glass, this system allows operators to directly observe the material state, reaction phenomena, and liquid level inside the reactor. The scale lines 51 are vertically arranged along one side of the observation window 5, with their zero point typically aligned with the reactor's lowest effective liquid level. By comparing the material level with the scale lines 51, the liquid level inside the reactor can be accurately read. During the reaction, operators can monitor the reaction after catalyst addition in real time through the observation window 5, such as color changes, bubble generation, and stirring effects. Simultaneously, the scale lines 51 are used to determine whether the material addition amount has reached the preset value, providing a direct basis for process control. (Rubber...) The pad 6 is firmly fixed to the bottom of the support leg 111 with a high-strength adhesive, forming a buffer structure. When the reactor is running, the rotation of the agitator, the flow of materials, and the vibration mechanism driven by the servo motor 15 will all generate vibrations. These vibrations are transmitted to the ground through the support leg 111. The elastic properties of the rubber pad 6 allow it to absorb and disperse vibration energy, reducing the transmission of vibration to the ground. At the same time, the rubber pad 6 increases the contact area between the support leg 111 and the ground, and the rubber material has a high coefficient of friction with the ground, thereby enhancing the stability of the entire device and preventing the reactor from shifting or shaking due to vibration.

[0032] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. A catalyst addition device for a reaction vessel, comprising a reaction vessel body (1); characterized in that: A guide pipe (10) is fixedly connected to the top end of the reactor body (1); the guide pipe (10) penetrates the surface of the reactor body (1); a support rod (11) is fixedly connected to the bottom end of the guide pipe (10); a feed inlet (12) is provided at the top end of the guide pipe (10); a filter plate (13) is provided at the top end of the feed inlet (12); a connecting frame (14) is fixedly connected to the side wall of the reactor body (1); the side of the connecting frame (14) A servo motor (15) is fixedly connected to the wall; a rotating shaft (16) is fixedly connected to the output end of the servo motor (15); a turntable (17) is fixedly connected to the end of the rotating shaft (16); multiple sets of elastic rods (18) are fixedly connected to the side wall of the turntable (17); a ball (19) is fixedly connected to the end of the elastic rod (18); an elastic sheet (110) is fixedly connected to the side wall of the guide pipe (10); and multiple sets of support legs (111) are fixedly connected to the side wall of the reactor body (1).

2. The catalyst addition device for a reaction vessel as described in claim 1, characterized in that: The top of the feed inlet (12) is symmetrically provided with mounting grooves (2), and a first magnetic block (21) is fixedly connected to the side wall of the mounting groove (2); a second magnetic block (22) is symmetrically fixedly connected to the bottom of the filter plate (13); the second magnetic block (22) and the first magnetic block (21) are connected by magnetic connection.

3. The catalyst addition device for a reaction vessel as described in claim 1, characterized in that: The top of the filter plate (13) is symmetrically fixed with pull rings (3); the inner side wall of the pull rings (3) is fixed with anti-slip sleeves (31).

4. The catalyst addition device for a reaction vessel as described in claim 1, characterized in that: Multiple sets of connecting rods (4) are fixed to the side wall of the feed inlet (12); a limiting cylinder (41) is provided at the top of the feed inlet (12); the limiting cylinder (41) is connected to the side wall of the feed inlet (12) through the connecting rods (4).

5. The catalyst addition device for a reaction vessel as described in claim 1, characterized in that: The side wall of the reactor body (1) is fixed with multiple sets of observation windows (5); multiple sets of scale lines (51) are provided on one side of the observation window (5).

6. The catalyst addition device for a reaction vessel as described in claim 1, characterized in that: A rubber pad (6) is provided at the bottom of the support leg (111); the rubber pad (6) is connected to the support leg (111) by adhesive bonding.