Reaction kettle convenient to maintain and used for processing ultra-high molecular weight polyethylene

The design of the locking mechanism solves the problem of the difficult disassembly of the reactor lid, enabling rapid maintenance and cleaning of the reactor and improving maintenance efficiency.

CN223996087UActive Publication Date: 2026-03-17SHANGTUO POLYMER MATERIALS (NANJING) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-04-09
Publication Date
2026-03-17

AI Technical Summary

Technical Problem

The existing reactor lid is not easy to remove after long-term use, resulting in low maintenance efficiency and inability to effectively clean internal impurities.

Method used

The lid locking mechanism includes components such as a fixed base, a fixed plate, a fixed frame, a pull rod, a spring, a pressure plate, a positioning block, a pressure roller, and a pull handle. Through the cooperation of these components, the lid of the vessel can be quickly disassembled and installed.

Benefits of technology

It enables quick disassembly and installation of the vessel lid, improving the maintenance efficiency of the reactor and facilitating internal cleaning.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of reaction kettles, and discloses a reaction kettle for processing ultra-high molecular weight polyethylene, which is convenient to maintain and comprises a kettle body, a kettle cover is arranged at the upper end opening of the kettle body, a cover locking mechanism is arranged between the kettle body and the kettle cover, and the cover locking mechanism comprises a fixed seat and a fixed plate. A fixing frame is hinged to the fixing base through a pin shaft, and a positioning groove is formed in the fixing plate. When the kettle cover needs to be disassembled, a worker pulls a pull handle upwards to enable a pull rod of the pull handle to drive a pressing plate to move upwards, a positioning block is separated from the interior of a positioning groove, at the moment, a fixing frame is turned over with a pin shaft as the circle center, a pressing wheel of the fixing frame is separated from the upper surface of a fixing plate, and at the moment, the kettle cover can be lifted upwards through a crane; therefore, the kettle cover is disassembled, and a worker can conveniently and quickly disassemble the kettle cover and maintain and clean the interior of the kettle body.
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Description

Technical Field

[0001] This utility model relates to the field of reaction vessel technology, specifically to a reaction vessel for processing ultra-high molecular weight polyethylene that is easy to maintain. Background Technology

[0002] Polyethylene, or polyethylene, is the most common plastic, primarily used for packaging. Several types of polyethylene are known, most of which have the chemical formula (C₂H₄)n. Polyethylene is typically a mixture of ethylene-like polymers with different n values. Polyethylene is a thermoplastic; however, when modified, it can become a thermosetting plastic (e.g., cross-linked polyethylene). The production of polyethylene requires the use of a reaction vessel for stirring.

[0003] According to Chinese Patent Publication No. CN215586451U, a convenient-to-maintain reactor for processing ultra-high molecular weight polyethylene (UHMWPE) is disclosed. The filtration device includes a first threaded tube, with a second threaded tube threadedly connected to the bottom of the first threaded tube. The drive mechanism includes a power supply mechanism and a filter screen. An arc-shaped plate is fixedly connected to one side of the power supply mechanism, and a motor is obliquely fixedly fitted to the middle of one side of the arc-shaped plate, with the motor's output end extending beyond one side of the arc-shaped plate. A first connecting rod is fixedly connected to one side of the filter screen. This convenient-to-maintain UHMWPE reactor solves the problem that existing reactors cannot guarantee the absence of impurities in the liquid during stirring, resulting in the inability to remove impurities from the outlet. Currently, existing reactors require internal cleaning after prolonged use, but the reactor lid is fixed with bolts and nuts, making quick disassembly during cleaning and maintenance inconvenient and affecting maintenance efficiency. Therefore, this convenient-to-maintain UHMWPE reactor is proposed to solve the aforementioned problems. Utility Model Content

[0004] The technical problem to be solved by this utility model is to provide a reaction vessel for processing ultra-high molecular weight polyethylene that is easy to maintain, in order to address the shortcomings of the prior art.

[0005] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is: a reaction vessel for processing ultra-high molecular weight polyethylene that is easy to maintain, including a vessel body, a vessel cover provided at the upper port of the vessel body, and a locking mechanism provided between the vessel body and the vessel cover;

[0006] The locking mechanism includes a fixed base and a fixed plate. A fixed frame is hinged to the fixed base via a pin. A positioning groove is provided on the fixed plate. A pressure roller is rotatably connected to the fixed frame via a bearing. A pull rod is provided on the fixed frame. A pressure plate is fixedly installed at the lower end of the pull rod. A positioning block is fixedly installed at the bottom of the pressure plate. The positioning block is inserted into the positioning groove. A spring is sleeved on the pull rod.

[0007] Preferably, the fixing seat is fixedly installed on the upper part of the outer wall of the vessel body, the fixing plate is fixedly installed on the upper surface of the vessel lid, and a handle is fixedly installed on the upper end of the pull rod, so that the staff can easily pull the pull rod.

[0008] Preferably, there are two pressure rollers, which are respectively arranged on both sides of the inner wall of the fixed frame. The lower end of the spring abuts against the pressure plate. The pressure rollers can press down on the fixed plate to press the lid of the vessel onto the vessel body.

[0009] Preferably, the fixing frame has a through hole, the pull rod passes through the inside of the through hole, and a limit rod is fixedly installed on the upper surface of the pressure plate. The limit rod passes through the top wall of the fixing frame, and the limit rod can limit the pressure plate.

[0010] Preferably, a motor is fixedly installed on the upper surface of the kettle lid, and a rotating shaft is fixedly installed at the output end of the motor. A stirring blade is fixedly installed on the rotating shaft. By starting the motor, the rotating shaft can be driven to rotate, so that the stirring blade can stir the raw materials inside the kettle.

[0011] Preferably, the interior of the vessel body is provided with a positioning mechanism, which includes a positioning plate and an arc-shaped insert plate. The positioning plate is fixedly installed on the upper end of the inner wall of the vessel body, and the arc-shaped insert plate is fixedly installed on the bottom of the vessel lid. The positioning mechanism can position the vessel lid, making it easier for the vessel lid to be pressed onto the vessel body.

[0012] Preferably, the positioning plate has a positioning hole, and the arc-shaped insert plate is inserted into the positioning hole. The positioning hole and the arc-shaped insert plate can prevent the lid from limiting the position.

[0013] The present invention adopts the above technical solution, which can bring the following beneficial effects:

[0014] 1. This easy-to-maintain ultra-high molecular weight polyethylene processing reactor utilizes the coordinated operation of a fixed base, fixed plate, fixed frame, pull rod, spring, pressure plate, positioning block, positioning groove, pressure roller, pull handle, limit rod, and pin. When the reactor lid needs to be disassembled, the operator pulls the pull handle upwards, causing the pull rod to move the pressure plate upwards, disengaging the positioning block from the positioning groove. At this point, the fixed frame is flipped around the pin, causing the pressure roller to disengage from the upper surface of the fixed plate. The reactor lid can then be lifted upwards using a crane, thus achieving the disassembly of the reactor lid. This allows operators to quickly remove the reactor lid and perform maintenance and cleaning of the reactor interior.

[0015] 2. This easy-to-maintain ultra-high molecular weight polyethylene processing reactor uses the cooperation of a positioning plate, positioning hole, and arc-shaped insert plate. When the reactor lid is lowered and docked with the reactor body, the arc-shaped insert plate is inserted into the positioning hole to position the reactor lid, thereby aligning the fixing plate with the fixing seat and facilitating the docking and installation of the reactor lid. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0017] Figure 2 This is a schematic cross-sectional view of the present invention.

[0018] Figure 3 for Figure 2 Enlarged schematic diagram of the structure at point A in the middle;

[0019] Figure 4 This is a schematic diagram of the locking mechanism of this utility model;

[0020] Figure 5 This is a schematic diagram of the positioning mechanism of this utility model;

[0021] Figure 6 This is a schematic diagram of the bottom structure of the lid of the vessel according to this utility model.

[0022] In the diagram: 1. Vessel body; 2. Locking mechanism; 201. Fixed base; 202. Fixed plate; 203. Fixed frame; 204. Pull rod; 205. Spring; 206. Pressure plate; 207. Positioning block; 208. Positioning groove; 209. Pressure roller; 210. Pull handle; 211. Limiting rod; 212. Pin; 3. Positioning mechanism; 301. Positioning plate; 302. Positioning hole; 303. Arc-shaped insert plate; 4. Vessel lid; 5. Motor; 6. Rotating shaft; 7. Stirring blade. 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 of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] In the description of this utility model, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0025] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "setting" should be interpreted broadly. For example, they can refer to a fixed connection or setting, a detachable connection or setting, or an integral connection or setting. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0026] Please see Figure 1-6 One embodiment of this utility model is: a reaction vessel for processing ultra-high molecular weight polyethylene that is easy to maintain, including a vessel body 1, a vessel cover 4 provided at the upper port of the vessel body 1, and a locking mechanism 2 provided between the vessel body 1 and the vessel cover 4.

[0027] The locking mechanism 2 includes a fixed base 201 and a fixed plate 202. A fixed frame 203 is hinged to the fixed base 201 via a pin 212. A positioning groove 208 is provided on the fixed plate 202. A pressure roller 209 is rotatably connected to the fixed frame 203 via a bearing. A pull rod 204 is provided on the fixed frame 203. A pressure plate 206 is fixedly installed at the lower end of the pull rod 204. A positioning block 207 is fixedly installed at the bottom of the pressure plate 206. The positioning block 207 is inserted into the positioning groove 208. A spring is sleeved on the pull rod 204. When the lid 4 needs to be disassembled, the operator pulls the handle 210 upwards to move the lever 204 and the pressure plate 206 upwards, so that the positioning block 207 is disengaged from the positioning groove 208. At this time, the fixing frame 203 is flipped around the pin 212, so that the pressure roller 209 is disengaged from the upper surface of the fixing plate 202. The lid 4 can then be lifted upwards by a crane, thereby disassembling the lid 4 and facilitating the operator to quickly disassemble the lid 4 and perform maintenance and cleaning of the inside of the vessel body 1.

[0028] The fixed base 201 is fixedly installed on the upper part of the outer wall of the vessel body 1, the fixed plate 202 is fixedly installed on the upper surface of the vessel cover 4, and the upper end of the pull rod 204 is fixedly installed with a handle 210. The handle 210 makes it convenient for the staff to pull the pull rod 204.

[0029] There are two pressure rollers 209, which are respectively set on both sides of the inner wall of the fixed frame 203. The lower end of the spring 205 abuts against the pressure plate 206. The pressure rollers 209 can press down the fixed plate 202 so that the lid 4 is pressed onto the body 1.

[0030] The fixed frame 203 has a through hole, and the pull rod 204 passes through the inside of the through hole. A limit rod 211 is fixedly installed on the upper surface of the pressure plate 206. The limit rod 211 passes through the top wall of the fixed frame 203. The limit rod 211 can limit the pressure plate 206.

[0031] A motor 5 is fixedly installed on the upper surface of the kettle lid 4. A rotating shaft 6 is fixedly installed at the output end of the motor 5. An agitator 7 is fixedly installed on the rotating shaft 6. By starting the motor 5, the rotating shaft 6 can be driven to rotate, so that the agitator 7 can agitate the raw materials inside the kettle body 1.

[0032] Working principle: When it is necessary to disassemble the vessel lid 4, the operator pulls the handle 210 upwards so that the pull rod 204 drives the pressure plate 206 upwards, causing the positioning block 207 to disengage from the positioning groove 208. At this time, the fixing frame 203 is flipped around the pin 212 as the center, so that the pressure roller 209 disengages from the upper surface of the fixing plate 202. At this time, the vessel lid 4 can be lifted upwards by the crane, thereby achieving the disassembly of the vessel lid 4. This allows the operator to quickly disassemble the vessel lid 4 and carry out maintenance and cleaning of the inside of the vessel body 1.

[0033] Please see Figure 1-6 Based on the above embodiments, in another embodiment of the present invention, a positioning mechanism 3 is provided inside the vessel body 1. The positioning mechanism 3 includes a positioning plate 301 and an arc-shaped insert plate 303. The positioning plate 301 is fixedly installed on the upper end of the inner wall of the vessel body 1, and the arc-shaped insert plate 303 is fixedly installed on the bottom of the vessel lid 4. The positioning mechanism 3 can be used to position the vessel lid 4, so that the vessel lid 4 can be pressed onto the vessel body 1.

[0034] The positioning plate 301 has a positioning hole 302, and the arc-shaped insert plate 303 is inserted into the positioning hole 302. The positioning hole 302 and the arc-shaped insert plate 303 can prevent the lid 4 from being used for limiting.

[0035] Working principle: Through the cooperation of positioning plate 301, positioning hole 302 and arc-shaped insert plate 303, when the vessel lid 4 is lowered and docked with the vessel body 1, the arc-shaped insert plate 303 is inserted into the positioning hole 302 to position the vessel lid 4, thereby aligning the fixing plate 202 with the fixing seat 201, which facilitates the docking and installation of the vessel lid 4.

[0036] This utility model provides a convenient-to-maintain reactor for processing ultra-high molecular weight polyethylene. Many methods and approaches exist to achieve this technical solution; the above description is merely a preferred embodiment. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model. All components not explicitly stated in this embodiment can be implemented using existing technology.

Claims

1. A reaction kettle for processing of ultra-high molecular weight polyethylene, which is convenient to maintain, comprising a kettle body (1), characterized in that: The upper end of the kettle body (1) is provided with a kettle cover (4), and a cover locking mechanism (2) is arranged between the kettle body (1) and the kettle cover (4). The cover locking mechanism (2) comprises a fixed seat (201) and a fixed plate (202), the fixed seat (201) is hingedly connected with a fixed frame (203) through a pin shaft (212), the fixed plate (202) is provided with a positioning groove (208), the fixed frame (203) is rotatably connected with a pressure roller (209) through a bearing, the fixed frame (203) is provided with a pull rod (204), the lower end of the pull rod (204) is fixedly installed with a pressing plate (206), the bottom of the pressing plate (206) is fixedly installed with a positioning block (207), the positioning block (207) is inserted into the positioning groove (208), and the pull rod (204) is sleeved with a spring (205).

2. The ultra-high molecular weight polyethylene processing reaction kettle convenient to maintain according to claim 1, characterized in that: The fixed seat (201) is fixedly installed on the outer wall of the kettle body (1), the fixed plate (202) is fixedly installed on the upper surface of the kettle cover (4), and the upper end of the pull rod (204) is fixedly installed with a pull handle (210).

3. The ultra-high molecular weight polyethylene processing reaction kettle convenient to maintain according to claim 1, characterized in that: The number of the pressure roller (209) is two, and the two pressure rollers (209) are arranged on the inner walls of the fixed frame (203), and the lower end of the spring (205) abuts against the pressing plate (206).

4. The ultra-high molecular weight polyethylene processing reaction kettle convenient to maintain according to claim 1, characterized in that: The fixed frame (203) is provided with a through hole, the pull rod (204) penetrates through the inside of the through hole, the upper surface of the pressing plate (206) is fixedly installed with a limiting rod (211), and the limiting rod (211) penetrates through the top wall of the fixed frame (203).

5. The easy-to-maintain reactor for processing ultra-high molecular weight polyethylene according to claim 1, wherein: The upper surface of the kettle cover (4) is fixedly installed with a motor (5), the output end of the motor (5) is fixedly installed with a rotating shaft (6), and the rotating shaft (6) is fixedly installed with stirring blades (7).

6. The easy-to-maintain reactor for processing ultra-high molecular weight polyethylene according to claim 1, characterized in that: The inside of the kettle body (1) is provided with a positioning mechanism (3), the positioning mechanism (3) comprises a positioning plate (301) and an arc-shaped plug plate (303), the positioning plate (301) is fixedly installed on the inner wall of the kettle body (1), and the arc-shaped plug plate (303) is fixedly installed on the bottom of the kettle cover (4).

7. The ultra-high molecular weight polyethylene processing reaction kettle convenient to maintain according to claim 6, characterized in that: The positioning plate (301) is provided with a positioning hole (302), and the arc-shaped plug plate (303) is inserted into the positioning hole (302).

Citation Information

Patent Citations

  • Reaction kettle convenient to maintain and used for processing ultra-high molecular weight polyethylene

    CN215586451U