Reaction kettle

By setting a multi-layer sealing structure at the bearing seat of the reactor, the problem of slurry entering the bearing seat is solved, ensuring the normal rotation of the stirring device and improving the sealing performance and stability of the reactor.

CN224194729UActive Publication Date: 2026-05-05ZHEJIANG JIEFA TECH
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Patent Information

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

AI Technical Summary

Technical Problem

During lignin production, slurry can easily enter the bearing housing of the reactor, causing the bearing to jam and affecting the rotation of the stirring device.

Method used

A multi-layer sealing structure is installed at the bearing housing of the reactor, including a first seal and a second seal. The sealing performance is enhanced by the cooperation of multiple sealing rings and support plates to prevent slurry from entering the bearing housing.

Benefits of technology

It effectively prevents slurry from entering the bearing housing, ensures the normal rotation of the stirring device, and improves the sealing performance and operational stability of the reactor.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224194729U_ABST
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Abstract

The utility model discloses a reaction kettle which comprises a tank body, a supporting shaft is arranged on the tank body, a bearing seat is arranged in the tank body, the supporting shaft is fixed on the bearing seat through a bearing arranged in the bearing seat, the bearing seat is connected with a first sealing element, the first sealing element is provided with a second sealing ring, and the supporting shaft is connected with a second sealing element. The second sealing piece is provided with a third sealing ring, and the second sealing ring abuts against the third sealing ring. The second sealing ring is provided with a first abutting part, the third sealing ring is provided with a second abutting part, the first abutting part abuts against the third sealing ring, and the second abutting part abuts against the second sealing ring, so that the second sealing ring abuts against the third sealing ring, and the sealing performance between the second sealing ring and the third sealing ring can be enhanced; and slurry is prevented from entering the bearing seat.
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Description

Technical Field

[0001] This utility model relates to the field of chemical equipment technology, and more specifically, to a reaction vessel. Background Technology

[0002] Reactors are commonly used equipment in lignin production. Reactors usually have a stirring device that extends into the reactor. The shaft of the stirring device needs to be fixed in a bearing housing at the bottom of the reactor. During lignin production, there is a possibility that the slurry may enter the bearing housing. Solid substances in the lignin slurry can easily cause the bearings in the bearing housing to jam, thus affecting the rotation of the stirring device. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a reaction vessel with a bearing housing that has good sealing performance.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: a reaction vessel, including a tank body, a support shaft installed in the tank body, a bearing seat provided inside the tank body, the support shaft being fixed to the bearing seat by a bearing installed in the bearing seat, the bearing seat being connected to a first sealing element, the first sealing element being provided with a second sealing ring, the support shaft being connected to a second sealing element, the second sealing element being provided with a third sealing ring, the second sealing ring and the third sealing ring abutting against each other.

[0005] Furthermore, the second sealing ring is positioned above the third sealing ring, the second sealing ring extends horizontally, and the second sealing member is provided with a first abutting portion extending toward and abutting the third sealing ring, the first abutting portion being inclined toward the direction of the support shaft.

[0006] Furthermore, the third sealing ring extends in a horizontal direction and is provided with a second abutting portion that extends toward and abuts against the second sealing ring.

[0007] Furthermore, the second abutment portion is inclined in a direction away from the support shaft, and the second abutment portion is provided with a third abutment portion that extends toward the first abutment portion and abuts against the first abutment portion.

[0008] Furthermore, the first sealing element includes a first support plate, the first support plate is connected to a second support plate that is inclined in a direction away from the support axis, the second support plate is connected to a third support plate that is inclined in a direction away from the support axis, the third support plate is provided with a second sealing groove, and the second sealing ring is provided with a first connecting portion that is embedded in the second sealing groove.

[0009] Furthermore, the first support plate is inclined toward the direction of the support shaft, and the top of the first support plate is provided with a sealing part protruding toward the support shaft. The sealing part is provided with a first sealing groove, and a first sealing ring is embedded in the first sealing groove.

[0010] Furthermore, the second seal includes a first plate, the first plate being connected to a second plate, the first plate and the second plate covering the second seal.

[0011] Furthermore, the second plate is provided with a third plate extending toward the direction of the support shaft, the third sealing ring is provided with a third sealing groove, the third sealing ring is provided with a second connecting part, and the second connecting part is embedded in the third sealing groove.

[0012] In summary, this utility model has the following beneficial effects:

[0013] The second sealing ring is provided with a first abutting part, and the third sealing ring is provided with a second abutting part. The first abutting part abuts against the third sealing ring, and the second abutting part abuts against the second sealing ring, so that the second sealing ring and the third sealing ring abut against each other, which can enhance the sealing performance between the second sealing ring and the third sealing ring and prevent slurry from entering the bearing housing. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of this utility model;

[0015] Figure 2 for Figure 1 Enlarged view of point A in the middle;

[0016] Reference numerals: Tank body 100, support shaft 110, bracket 120, bearing seat 130, bearing 131, top cover 132, first seal 200, first support plate 210, sealing part 211, first sealing groove 212, first sealing ring 213, second support plate 220, third support plate 230, second sealing groove 231, second sealing ring 240, first connecting part 241, first abutting part 242, second seal 300, first plate 310, second plate 320, third plate 330, third sealing groove 331, third sealing ring 340, second connecting part 341, second abutting part 342, third abutting part 343, protrusion 350, fourth sealing groove 351, fourth sealing ring 352. Detailed Implementation

[0017] 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] See Figure 1 , Figure 2 This embodiment discloses a reaction vessel, including a tank body 100, a support shaft 110 mounted on the tank body 100, a bracket 120 mounted on the bottom of the tank body 100, a bearing seat 130 mounted on the top of the bracket 120, a bearing 131 mounted inside the bearing seat 130, and the end of the support shaft 110 connected to the bearing 131, thereby making the support shaft 110 and the bearing seat 130 rotatably connected.

[0019] A top cover 132 is provided on the top of the bearing housing 130. The top cover 132 is connected to a first seal 200. The first seal 200 includes a first support plate 210, which is inclined toward the direction of the support shaft 110. The top of the first support plate 210 is provided with a sealing part 211 protruding toward the support shaft 110. The sealing part 211 is provided with a first sealing groove 212, and a first sealing ring 213 is embedded in the first sealing groove 212. The first sealing ring 213 is made of rubber. The first sealing ring 213 can enhance the sealing performance between the support shaft 110 and the first seal 200, thereby preventing materials from entering the bearing 131 and affecting the forward rotation of the support shaft 110.

[0020] The first support plate 210 is connected to a second support plate 220 that is inclined in a direction away from the support shaft 110. The cross-section of the second support plate 220 and the first support plate 210 forms a Y-shaped structure. The second support plate 220 is connected to a third support plate 230 that is inclined in a direction away from the support shaft 110. The second support plate 220 and the third support plate 230 form an inverted V-shaped structure. The second support plate 220 and the third support plate 230 can block the material inside the tank 100, increasing the difficulty for the material to enter the space between the first support plate 210 and the support shaft 110 from below.

[0021] The second sealing element 300 includes a first plate 310, which is fixed to the support shaft 110 and extends outward in a horizontal direction. A second plate 320, extending downward in a direction away from the support shaft 110, is connected to the end of the first plate 310. The first plate 310 and the second plate 320 cover the second sealing element 300, thereby blocking the material inside the tank 100 and restricting the material from entering the space between the first support plate 210 and the support shaft 110 from above.

[0022] The third support plate 230 is provided with a second sealing ring 240. Specifically, the third support plate 230 is provided with a second sealing groove 231, and the second sealing ring 240 is provided with a first connecting part 241 that is embedded in the second sealing groove 231, thereby fixing the second sealing ring 240 to the third support plate 230. The second sealing ring 240 extends horizontally away from the support shaft 110.

[0023] The second plate 320 is connected to a third plate 330 extending in the direction of the support shaft 110. The third plate 330 is provided with a third sealing ring 340. Specifically, a third sealing groove 331 is provided at the end of the third plate 330. The third sealing ring 340 is provided with a second connecting part 341. The second connecting part 341 is embedded in the third sealing groove 331 to fix the third plate 330 and the third sealing ring 340.

[0024] The second sealing ring 240 is positioned above the third sealing ring 340. The second sealing member 300 has a first abutting portion 242 extending toward and abutting against the third sealing ring 340. The first abutting portion 242 is inclined toward the direction of the support shaft 110. Simultaneously, the third sealing ring 340 has a second abutting portion 342 extending toward and abutting against the second sealing ring 240. The first abutting portion 242 is closer to the support shaft 110 than the second abutting portion 342. When material compresses the first abutting portion 242, its inclination toward the support shaft 110 allows it to adhere tightly to the third sealing ring 340 when pressure is applied, thereby increasing the sealing performance of both. The second abutting portion 342 is inclined away from the support shaft 110, and has a third abutting portion 343 extending toward and abutting against the first abutting portion 242. When the material presses the second abutment portion 342, the second abutment portion 342 can press the second sealing ring 240, thereby making the second abutment portion 342 tightly adhere to the second sealing ring 240. At the same time, the third abutment portion 343 can support the first abutment portion 242, further strengthening the sealing strength between the second sealing ring 240 and the third sealing ring 340.

[0025] The first plate 310 is provided with a protrusion 350 extending toward the first sealing member 200, and the position of the protrusion 350 corresponds to the connection between the second support plate 220 and the third support plate 230. The protrusion 350 is provided with a fourth sealing groove 351, and a fourth sealing ring 352 is embedded in the fourth sealing groove 351, thereby increasing the sealing performance between the first sealing member 200 and the second sealing member 300.

[0026] The above description is merely a preferred embodiment of this utility model. The protection scope of this utility model is not limited to the above embodiments. All technical solutions falling within the scope of this utility model's concept are protected. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principle of this utility model should also be considered within the protection scope of this utility model.

Claims

1. A reaction vessel, characterized in that, The device includes a tank body (100), on which a support shaft (110) is mounted. A bearing housing (130) is provided inside the tank body (100). The support shaft (110) is fixed to the bearing housing (130) by a bearing (131) installed inside the bearing housing (130). The bearing housing (130) is connected to a first sealing element (200). The first sealing element (200) is provided with a second sealing ring (240). The support shaft (110) is connected to a second sealing element (300). The second sealing element (300) is provided with a third sealing ring (340). The second sealing ring (240) and the third sealing ring (340) abut against each other.

2. The reaction vessel according to claim 1, characterized in that, The second sealing ring (240) is positioned above the third sealing ring (340). The second sealing ring (240) extends in a horizontal direction. The second sealing member (300) is provided with a first abutting portion (242) extending toward the third sealing ring (340) and abutting against the third sealing ring (340). The first abutting portion (242) is inclined toward the direction of the support shaft (110).

3. A reaction vessel according to claim 2, characterized in that, The third sealing ring (340) extends in a horizontal direction and is provided with a second abutting portion (342) that extends toward the second sealing ring (240) and abuts against the second sealing ring (240).

4. A reaction vessel according to claim 3, characterized in that, The second abutting portion (342) is inclined in a direction away from the support shaft (110), and the second abutting portion (342) is provided with a third abutting portion (343) that extends toward the first abutting portion (242) and abuts against the first abutting portion (242).

5. A reaction vessel according to claim 1, characterized in that, The first sealing element (200) includes a first support plate (210), the first support plate (210) is connected to a second support plate (220) inclined in a direction away from the support shaft (110), the second support plate (220) is connected to a third support plate (230) inclined in a direction away from the support shaft (110), the third support plate (230) is provided with a second sealing groove (231), and the second sealing ring (240) is provided with a first connecting portion (241) embedded in the second sealing groove (231).

6. A reaction vessel according to claim 5, characterized in that, The first support plate (210) is inclined toward the direction of the support shaft (110). The top of the first support plate (210) is provided with a sealing part (211) protruding toward the support shaft (110). The sealing part (211) is provided with a first sealing groove (212), and a first sealing ring (213) is embedded in the first sealing groove (212).

7. A reaction vessel according to claim 5, characterized in that, The second seal (300) includes a first plate (310) connected to a second plate (320), and the first plate (310) and the second plate (320) cover the second seal (300).

8. A reaction vessel according to claim 7, characterized in that, The second plate (320) is provided with a third plate (330) extending in the direction of the support shaft (110), the third sealing ring (340) is provided with a third sealing groove (331), the third sealing ring (340) is provided with a second connecting part (341), and the second connecting part (341) is embedded in the third sealing groove (331).