Reaction kettle for polyurethane production

By introducing a reciprocating screw and magnet ring structure into the reaction vessel used for polyurethane production, the resistance problem when the stirring shaft drives the cleaning brush was solved, achieving efficient cleaning and uniform stirring of the inner wall of the vessel, and improving the cleaning effect and stirring efficiency.

CN223901830UActive Publication Date: 2026-02-13HANSHA HEFANG (FUZHOU) NEW MATERIAL TECH CO LTD
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Patent Information

Application Number
CN202422686887.6
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-05
Publication Date
2026-02-13
Estimated Expiration
2034-11-05

AI Technical Summary

Technical Problem

In the cleaning process of existing polyurethane production reactors, when the stirring shaft drives the cleaning brush to move up and down, the resistance affects the cleaning effect and the stirring effect is poor.

Method used

The system employs a reciprocating screw driven by a first servo motor and a magnet ring structure. Through magnetic connection, it drives the cleaning brush to move up and down along the vessel wall, separating it from the movement of the stirring device. Combined with the heating plate and cleaning tank, it provides cleaning fluid, achieving efficient cleaning. At the same time, a second servo motor drives the stirring rod to uniformly stir the polyurethane adhesive.

Benefits of technology

This improves the cleaning efficiency of the reactor's inner wall, avoids mutual interference between stirring and cleaning movements, and ensures thorough cleaning of the reactor's inner wall while maintaining the stirring effect.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a reaction kettle for polyurethane production, which comprises a reaction component, a reaction part and a reaction part, the cleaning part comprises supporting legs and a reaction kettle body. The reaction kettle is provided with the first servo motor, the first magnet ring, the second magnet ring, the cleaning brush, the heating plate, the cleaning box, the water conveying pipe and the reciprocating screw rod, cleaning liquid in the cleaning box can be conveyed into the reaction kettle body through the water conveying pipe by the heating plate, and the first magnet ring is driven to slide upwards in time under the action of the reciprocating screw rod; a second magnet ring is driven to move upwards through magnetic connection, so that a cleaning brush moves upwards along the inner wall of the reaction kettle body to complete cleaning of the inner wall, meanwhile, when a first magnet ring moves to the topmost end of a reciprocating screw rod, downward transmission is started, the inner wall of the reaction kettle body is repeatedly cleaned up and down through the cleaning brush, and the cleaning efficiency is improved. While the cleaning efficiency is improved, simultaneous movement with the stirring device is avoided, and the effect is not affected.
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Description

TECHNICAL FIELD

[0001] The utility model relates to chemical technical field especially relates to a reaction kettle for polyurethane production. BACKGROUND

[0002] Polyurethane, full name is polyurethane, is by polyol and polyisocyanate through condensation reaction and the high polymer material of excellent mechanical property formed, plasticity is extremely strong, polyurethane usually uses the reaction kettle to complete in production, but the inner wall of reaction kettle will have the residue after completion, if not cleaning in time will influence next use.

[0003] According to search, the application number for CN214553560U discloses a kind of reaction kettle for polyurethane production dehydration, the inner cavity of reaction kettle wall is provided with cleaning bottom plate, the middle part of cleaning bottom plate is provided with stirring through-hole, the inner cavity of reaction kettle wall is provided with connecting bearing, the inner cavity of reaction kettle wall is provided with rotating motor, the periphery of rotating motor surface is respectively fixedly connected with cleaning brush, stirring shaft not only can drive stirring vane to polyurethane stirring, can also drive cleaning bottom plate to realize up and down movement, start drive motor, stirring shaft is rotated by drive motor, in turn drive cleaning bottom plate to move up and down, in the process of moving up and down by starting rotating motor, rotating motor drives cleaning brush to rotate, and polyurethane adhered to the inner wall of reaction kettle wall is removed by bristle.

[0004] The above scheme has the following deficiencies: the stirring shaft of the device can not only drive the stirring vane to stir the polyurethane, but also drive the cleaning bottom plate to move up and down. However, the polyurethane glue is an elastomer. When the stirring shaft drives the cleaning brush to move up and down, the resistance not only affects the normal up-and-down movement of the cleaning brush, but also causes poor stirring effect. Utility model content

[0005] The utility model aims at providing a reaction kettle for polyurethane production to solve the problems raised in the background art.

[0006] To solve the above technical problems, the utility model is implemented by the following technical solutions:

[0007] The utility model is a reaction kettle for polyurethane production, which comprises:

[0008] The reaction component comprises a bottom plate and a support leg, and the upper end surface of the bottom plate is fixedly connected with the support leg.

[0009] The cleaning component comprises a support leg, a reaction kettle body, a limiting groove, a limiting block, a first magnetite ring, a connecting plate, a first servo motor, a reciprocating screw rod, a second servo motor, a stirring rod, a cleaning brush, a second magnetite ring, a drain pipe, and an electromagnetic valve.

[0010] The top end of the support leg is fixedly connected with a reaction kettle body, a limiting groove is arranged on the surface of the reaction kettle body, a limiting block vertically slides in the limiting groove, a first magnetite ring is fixedly connected on the surface of the limiting block, a connecting plate is fixedly connected on the surface of the first magnetite ring, a first servo motor is fixedly connected on the upper end surface of the bottom plate, a reciprocating screw rod is installed on the output end of the first servo motor, a second servo motor is fixedly connected on the upper end surface of the reaction kettle body, a stirring rod is installed on the output end of the second servo motor and penetrates through the side wall of the reaction kettle body, a cleaning brush is sleeved on the inner wall of the reaction kettle body, a second magnetite ring is fixedly sleeved on the inner wall of the cleaning brush, a drain pipe is fixedly installed on the lower end surface of the reaction kettle body, and an electromagnetic valve is installed in the drain pipe.

[0011] Further, the inner wall of the first magnetite ring is vertically sleeved on the surface of the reaction kettle body, and the surface of the sliding block is matched with the inner wall of the limiting groove.

[0012] Further, a threaded hole is arranged on the upper end surface of the connecting plate, the inner wall of the threaded hole is matched with the surface of the reciprocating screw rod, and the first magnetite ring is magnetically connected with the second magnetite ring.

[0013] Further, an installation opening is arranged on the upper end surface of the reaction kettle body, and a feeding hopper is fixedly connected in the installation opening.

[0014] Further, the cleaning component further comprises a heating plate, a cleaning box, a water pump, a water delivery pipe and a sealing cover.

[0015] The upper end surface of the bottom plate is fixedly connected with a heating plate, the upper end surface of the heating plate is fixedly connected with a cleaning box, the cleaning box is fixedly connected with a water pump, the output end of the water pump is installed with a water delivery pipe, one end of the water delivery pipe is fixedly connected with the inner wall of the reaction kettle body, and the upper end surface of the water tank is threadedly connected with a sealing cover.

[0016] Further, the surface of the water delivery pipe penetrates through the inner wall of the cleaning box, and the other end of the water delivery pipe is in communication with the reaction kettle body.

[0017] Compared with the prior art, the advantages of the present application are that:

[0018] The utility model discloses a first servo motor, first magnetite ring, second magnetite ring, cleaning brush, hot plate, cleaning tank, water delivery pipe and reciprocating silk are equipped, the cleaning liquid in the cleaning tank can be transported to the reaction kettle body through the water delivery pipe through the hot plate, under the action of reciprocating silk rod, first magnetite ring slides up in time transmission, through magnetic connection together with the driving second magnetite ring moves up, makes cleaning brush move up along the reaction kettle body inner wall, completes to the inner wall cleaning, simultaneously, when first magnetite ring removes to the most top of reciprocating silk rod, starts downward transmission, and the cleaning brush is repeatedly cleaned to the reaction kettle body inner wall, improves the cleaning efficiency, avoids the simultaneous movement with stirring device, influences the effect.

[0019] Two, based on the beneficial effect, be equipped with second servo motor, stirring rod and feeding hopper, through the feeding hopper, the staff can pour polyurethane glue into the reaction kettle body, and the stirring rod is driven to rotate through the starting second servo motor, and the polyurethane glue and additive are fully stirred uniformly. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will be needed to use the drawing of the embodiment briefly introduced, obviously, the drawing in the following description only some embodiments of the utility model, for those skilled in the art, under the premise of not paying the creative labor, still can obtain other drawings according to these drawings.

[0021] Figure 1 It is the structure schematic diagram of the utility model three-dimensional structure;

[0022] Figure 2 It is the structure schematic diagram of the utility model reaction kettle body section;

[0023] Figure 3 It is the structure schematic diagram of the utility model first magnetite ring;

[0024] Figure 4 It is the structure schematic diagram of the utility model cleaning tank section.

[0025] In the drawings, the component list represented by each sign is as follows:

[0026] 1, bottom plate, 2, cleaning tank, 3, sealing cover, 4, water pump, 5, water delivery pipe, 6, reaction kettle body, 7, second servo motor, 8, stirring rod, 9, drain pipe, 10, second magnetite ring, 11, cleaning brush, 12, limit groove, 13, limit block, 14, first magnetite ring, 15, connecting plate, 16, reciprocating silk rod, 17, first servo motor, 18, feeding hopper, 19, support foot, 20, hot plate. DETAILED DESCRIPTION

[0027] In order to make the above objects, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the drawings.

[0028] In the following description, a lot of specific details are set forth in order to give a thorough understanding of the present application, but the present application can also be implemented in other ways different from those described herein, and those skilled in the art can make similar generalizations without departing from the connotation of the present application, therefore the present application is not limited by the specific embodiments disclosed below.

[0029] In order to make the objects, technical solutions and advantages of the present application more clear, the embodiments of the present application will be described in further detail below with reference to the drawings.

[0030] Please refer to Figures 1-4 The present embodiment is a kind of reaction kettle for polyurethane production, including:

[0031] Reaction component, reaction component includes bottom plate 1 and support foot 19, the upper end surface of bottom plate 1 is fixedly connected with support foot 19;

[0032] Cleaning component, cleaning component includes support foot 19, reaction kettle body 6, limit groove 12, limit block 13, first lodestone ring 14, connecting plate 15, first servo motor 17, reciprocating screw rod 16, second servo motor 7, stirring rod 8, cleaning brush 11, second lodestone ring 10, drain pipe 9 and electromagnetic valve;

[0033] The top of support foot 19 is fixedly connected with reaction kettle body 6, the surface of reaction kettle body 6 is provided with limit groove 12, limit block 13 is vertically slidably arranged in limit groove 12, the surface of limit block 13 is fixedly connected with first lodestone ring 14, the surface of first lodestone ring 14 is fixedly connected with connecting plate 15, the upper end surface of bottom plate 1 is fixedly connected with first servo motor 17, the output end of first servo motor 17 is provided with reciprocating screw rod 16, the upper end surface of reaction kettle body 6 is fixedly connected with second servo motor 7, the output end of second servo motor 7 is provided with stirring rod 8 penetrating through the side wall of reaction kettle body 6, the inner wall of reaction kettle body 6 is sleeved with cleaning brush 11, the inner wall of cleaning brush 11 is fixedly sleeved with second lodestone ring 10, the lower end surface of reaction kettle body 6 is fixedly provided with drain pipe 9, and the electromagnetic valve is arranged in drain pipe 9;

[0034] The support feet 19 support the reactor body 6 while providing a certain distance between the bottom of the reactor body 6 and the bottom, enabling the installation of the drain pipe 9 and facilitating the discharge of polyurethane glue. Through the rotation of the stirring rod 8, the polyurethane glue can be stirred evenly. The first magnet ring 14 moves up and down synchronously to drive the second magnet ring 10 and the cleaning brush 11, completing the cleaning of the inner wall of the reactor body 6. The material of the first magnet ring 14 and the second magnet ring 10 is the most heat-resistant aluminum-nickel-cobalt magnet;

[0035] The inner wall of the first magnet ring 14 is vertically sleeved on the surface of the reactor body 6, and the surface of the sliding block matches the inner wall of the limiting groove 12;

[0036] Through the mutual matching between the limiting groove 12 and the limiting block 13, the first magnet ring 14 has a guiding effect when moving, thereby ensuring the stable up-and-down sliding of the first magnet ring 14;

[0037] The upper end surface of the connecting plate 15 is provided with a threaded hole, the inner wall of the threaded hole matches the surface of the reciprocating screw rod 16, and the first magnet ring 14 is magnetically connected with the second magnet ring 10;

[0038] When the reciprocating screw rod 16 rotates, it realizes the up-and-down movement of the first magnet ring 14 through the mutual matching with the threaded hole;

[0039] The upper end surface of the reactor body 6 is provided with a mounting port, and the mounting port is fixedly connected with the feed hopper 18;

[0040] Working principle: when the polyurethane glue is poured into the reactor body 6 through the feed hopper 18, the second servo motor 7 is started to control the stirring rod 8 to rotate, and the polyurethane glue is fully stirred and evenly distributed. When taking, the electromagnetic valve and the drain pipe 9 are opened to realize the transfer of the polyurethane glue. When the inner wall of the reactor body 6 needs to be cleaned, the water inlet pipe 5 inputs cleaning liquid to the inner wall of the reactor body 6. At this time, the first servo motor 17 is started to rotate to control the reciprocating screw rod 16 to rotate. Through the matching action with the threaded hole, the first magnet ring 14 is driven to slide upward along the surface of the reactor body 6. The second magnet ring 10 is synchronously moved by magnetic connection, and the cleaning brush 11 moves upward along the inner wall of the reactor body 6. When the first magnet ring 14 moves to the uppermost position of the reciprocating screw rod 16, the first magnet ring 14 starts to drive the second magnet ring 10 downward and drives the cleaning brush 11, so that the cleaning brush 11 repeatedly cleans the inner wall of the reactor body 6 upward and downward, effectively improving the cleaning effect. The stirring structure and the cleaning structure in the device work separately, avoiding mutual obstruction during work;

[0041] Please refer to Figures 1-4As shown, the embodiment is based on the above-mentioned embodiment 1, the cleaning part further comprises a heating plate 20, a cleaning box 2, a water pump 4, a water conveying pipe 5 and a sealing cover 3;

[0042] The upper end surface of the bottom plate 1 is fixedly connected with the heating plate 20, the upper section of the heating plate 20 is fixedly connected with the cleaning box 2, the cleaning box 2 is fixedly connected with the water pump 4, the output end of the water pump 4 is provided with the water conveying pipe 5, one end of the water conveying pipe 5 is fixedly connected with the inner wall of the reaction kettle body 6, and the upper end surface of the water tank is threadedly connected with the sealing cover 3;

[0043] The heating plate 20 is arranged at the bottom of the cleaning box 2, effectively conducts heat to the cleaning box 2, heats the cleaning liquid, and provides effective help for subsequent cleaning of the inside of the reaction kettle body 6;

[0044] The surface of the water conveying pipe 5 penetrates the inner wall of the cleaning box 2, and the other end of the water conveying pipe 5 is connected with the reaction kettle body 6;

[0045] Working principle: when the sealing cover 3 is upwardly rotated and separated from the cleaning box 2, the cleaning liquid is poured into the cleaning box 2, the heating plate 20 is connected with the power supply, the bottom of the cleaning box 2 is heated, the temperature is conducted to the cleaning liquid through heating, the water pump 4 and the water conveying pipe 5 transport the cleaning liquid into the reaction kettle body 6, the cleaning liquid is better dissolved, cleaning is facilitated, and the model of the water pump 4 is set as KDLP1200.

[0046] In the description of the present application, it should be further explained that, unless otherwise specified and limited, the terms "arrangement", "installation", "connection", "connection" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the communication between two elements. For ordinary skilled in the art, the specific meaning of the above-mentioned terms in the present application can be understood according to the specific circumstances.

Claims

1. A reaction vessel for polyurethane production, characterized by, Include: Reaction components, the reaction components include the bottom plate (1) and the support foot (19), the upper end surface of the bottom plate (1) is fixedly connected with the support foot (19); The cleaning component includes support foot (19), reaction kettle body (6), limit groove (12), limit block (13), first magnetite ring (14), connecting plate (15), first servo motor (17), reciprocating screw rod (16), second servo motor (7), stirring rod (8), cleaning brush (11), second magnetite ring (10), drain pipe (9) and electromagnetic valve; The top end of the support foot (19) is fixedly connected with the reaction kettle body (6), the surface of the reaction kettle body (6) is provided with a limit groove (12), the limit groove (12) is vertically slidably connected with a limit block (13), the surface of the limit block (13) is fixedly connected with a first magnetite ring (14), the surface of the first magnetite ring (14) is fixedly connected with a connecting plate (15), the upper end surface of the bottom plate (1) is fixedly connected with a first servo motor (17), the output end of the first servo motor (17) is provided with a reciprocating screw rod (16), the upper end surface of the reaction kettle body (6) is fixedly connected with a second servo motor (7), the output end of the second servo motor (7) is provided with a stirring rod (8) penetrating through the side wall of the reaction kettle body (6), the inner wall of the reaction kettle body (6) is sleeved with a cleaning brush (11), the inner wall of the cleaning brush (11) is fixedly sleeved with a second magnetite ring (10), the lower end surface of the reaction kettle body (6) is fixedly provided with a drain pipe (9), and the drain pipe (9) is provided with an electromagnetic valve.

2. The reactor for polyurethane production according to claim 1, characterized in that, The inner wall of the first magnetite ring (14) is vertically sleeved on the surface of the reaction kettle body (6), and the surface of the sliding block matches the inner wall of the limit groove (12).

3. The reaction kettle for polyurethane production according to claim 1, characterized in that, The upper end surface of the connecting plate (15) is provided with a threaded hole, the inner wall of the threaded hole matches the surface of the reciprocating screw rod (16), and the first magnetite ring (14) is magnetically connected with the second magnetite ring (10).

4. The reaction kettle for polyurethane production according to claim 1, characterized in that, The upper end surface of the reaction kettle body (6) is provided with a mounting port, and the mounting port is fixedly connected with a feeding hopper (18).

5. The reaction kettle for polyurethane production according to claim 1, characterized in that, The cleaning component further includes a heating plate (20), a cleaning box (2), a water pump (4), a water delivery pipe (5) and a sealing cover (3); The upper end surface of the bottom plate (1) is fixedly connected with a heating plate (20), the upper end surface of the heating plate (20) is fixedly connected with a cleaning box (2), the cleaning box (2) is fixedly connected with a water pump (4), the output end of the water pump (4) is provided with a water delivery pipe (5), one end of the water delivery pipe (5) is fixedly connected with the inner wall of the reaction kettle body (6), and the upper end surface of the water tank is threadedly connected with a sealing cover (3).

6. The reactor for polyurethane production according to claim 5, characterized in that, The surface of the water delivery pipe (5) penetrates through the inner wall of the cleaning box (2), and the other end of the water delivery pipe (5) is in communication with the reaction kettle body (6).