Reaction kettle for synthesizing epoxy modified waterborne polyurethane dispersoid

Abstract

The reaction kettle comprises a reaction kettle body, a driving motor is mounted in the middle of the top end surface of the reaction kettle body, a feeding hole is formed in one side of the top end surface of the reaction kettle body, and a liquid inlet is formed in the other side of the top end surface of the reaction kettle body; through the designed heating assembly, the reaction kettle body can be conveniently heated in the using process, the mixing and stirring efficiency of polyurethane in the reaction kettle body can be improved, meanwhile, the polyurethane is not prone to adhering to the inner wall of the reaction kettle body, and the situation of condensation is not prone to occurring; workers do not need to frequently clean the inner wall of the reaction kettle, so that the functionality is improved, and the practicability is better; and by means of the designed cleaning assembly, the polyurethane dispersoid attached to the inner wall of the discharging pipe can be conveniently scraped and cleaned, operation is convenient and fast, no polyurethane dispersoid remains in the discharging pipe, and the practical effect is good.

Description

Technical Field

[0001] The utility model relates to the technical field of reaction kettles, in particular to a reaction kettle for synthesizing epoxy-modified waterborne polyurethane dispersions. Background Art

[0002] There are a large number of epoxy groups, hydroxyl groups, and benzene rings in epoxy resin. The presence of these structures gives epoxy resin unique advantages in adhesion, corrosion resistance, and hydrolysis resistance. This material will be used in the preparation of synthetic epoxy-modified waterborne polyurethane, and a reactor is required in the preparation of its dispersion. The existing reactor for synthesizing epoxy-modified waterborne polyurethane dispersion has the problem that the polyurethane will adhere to the inner wall of the reactor body during the stirring reaction. If the workers do not clean it in time, condensation will occur, which will affect the reaction effect of the polyurethane. There is inconvenience in use, and there is room for improvement. Utility Model Content

[0003] The utility model aims to provide a reaction kettle for synthesizing epoxy-modified waterborne polyurethane dispersion to solve the problems raised in the above background technology.

[0004] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a reactor for synthesizing epoxy-modified waterborne polyurethane dispersion, comprising a reactor body, a driving motor is installed in the middle of the top surface of the reactor body, a feed inlet is arranged on one side of the top surface of the reactor body, a liquid inlet is arranged on the other side of the top surface of the reactor body, a fixed base is arranged at the bottom of the reactor body, a discharge pipe is fixed to the bottom end surface of the reactor body, one end of the discharge pipe extends to the outside of the fixed base, and a heating component is arranged on the outside of the reactor body.

[0005] The heating component includes an electric heating wire arranged outside the reactor body, and the outer surface of the reactor body is provided with a limit slot for the electric heating wire to be engaged. The outside of the reactor body is covered with a flexible board, and limit rings are symmetrically installed on the top and bottom of the outer surface of the reactor body, and the flexible board is limitedly engaged between the two limit slots.

[0006] As a further preferred embodiment of the present technical solution, the inner surface of the flexible plate is provided with thermal insulation cotton, and the surface of the thermal insulation cotton is tightly fitted with the outer surface of the reactor body.

[0007] As a further preferred embodiment of the present technical solution, rubber rings are installed on the inner surfaces of the two limit slots, and the top end surface and the bottom end surface of the flexible board are pressed and fitted with the surfaces of the rubber rings.

[0008] As a further preferred embodiment of the technical solution, a limiting convex column is installed on the outer surface of the flexible plate, and the outer surface of the rubber ring is an inclined surface.

[0009] As a further preferred embodiment of the present technical solution, a cleaning assembly is provided inside the discharge pipe, and the cleaning assembly includes a cleaning scraper ring arranged at one end inside the discharge pipe, a limiting pull rod is fixed on the top of one side surface of the cleaning scraper ring, one end of the limiting pull rod extends to the outside of the opening of the discharge pipe, a connecting clamp is provided on the inner surface of one end of the limiting pull rod, and a connecting protrusion is installed on the outer top surface of one end of the discharge pipe, and the connecting clamp is engaged and connected with the connecting protrusion.

[0010] As a further preferred embodiment of the present technical solution, the outer surface of the cleaning scraper ring is tightly fitted with the inner wall of the discharge pipe, and the cross-section of the limiting pull rod is "L"-shaped.

[0011] The utility model provides a reaction kettle for synthesizing epoxy-modified waterborne polyurethane dispersion, which has the following beneficial effects:

[0012] 1. The utility model is convenient for heating the reactor body during use by designing a heating component, which can improve the mixing and stirring efficiency of the polyurethane inside the reactor body, and also makes it difficult for the polyurethane to adhere to the inner wall of the reactor body and condense, so there is no need for workers to frequently clean the inner wall of the reactor, thereby improving functionality and practicability.

[0013] 2. The cleaning component designed in the utility model is convenient for scraping and cleaning the polyurethane dispersion attached to the inner wall of the discharge pipe, which is easy and quick to operate, so that there will be no polyurethane dispersion residue inside the discharge pipe, and the practical effect is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the installation structure of the heating component in the utility model;

[0016] Figure 3 for Figure 2 A magnified schematic diagram of the middle A area;

[0017] Figure 4 This is a schematic diagram of the installation structure of the cleaning component in the utility model;

[0018] Figure 5 for Figure 4 A magnified schematic diagram of the middle B area;

[0019] In the figure: 1. Reactor body; 2. Driving motor; 3. Feed inlet; 4. Liquid inlet; 5. Discharge pipe; 6. Fixed base; 7. Flexible plate; 8. Limiting ring; 9. Limiting convex column; 10. Heating wire; 11. Limiting slot; 12. Insulation cotton; 13. Rubber ring; 14. Cleaning scraper ring; 15. Limiting pull rod; 16. Connecting clamp ring; 17. Connecting convex block. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0021] The utility model provides a technical solution: Figure 1 , Figure 2 and Figure 3 As shown, in this embodiment, a reactor for synthesizing epoxy-modified waterborne polyurethane dispersion comprises a reactor body 1, a driving motor 2 is installed in the middle of the top surface of the reactor body 1, a feed port 3 is arranged on one side of the top surface of the reactor body 1, a liquid inlet 4 is arranged on the other side of the top surface of the reactor body 1, a fixed base 6 is arranged at the bottom of the reactor body 1, a discharge pipe 5 is fixed to the bottom end surface of the reactor body 1, one end of the discharge pipe 5 extends to the outside of the fixed base 6, a heating component is arranged on the outside of the reactor body 1, the heating component comprises an electric heating wire 10 arranged on the outside of the reactor body 1, a limiting card slot 11 for engaging the electric heating wire 10 is opened on the outer surface of the reactor body 1, the outside of the reactor body 1 is covered with a flexible board 7, and the inner surface of the flexible board 7 is provided with a heat preservation cotton 1 2. The surface of the thermal insulation cotton 12 is tightly fitted with the outer surface of the reactor body 1. The top and bottom of the outer surface of the reactor body 1 are symmetrically installed with limit rings 8. The flexible plate 7 is limitedly engaged between the two limit slots 11. The inner surfaces of the two limit slots 11 are installed with rubber rings 13. The top and bottom end surfaces of the flexible plate 7 are squeezed and fitted with the surface of the rubber ring 13. The outer surface of the flexible plate 7 is installed with a limit convex column 9. The outer surface of the rubber ring 13 is an inclined surface, which is convenient for heating the reactor body 1 during operation, and can improve the reaction efficiency of the polyurethane dispersion inside the reactor body 1. At the same time, it also makes it difficult for the polyurethane dispersion to adhere to the inner wall of the reactor body 1, which can reduce the number of times workers clean the inside of the reactor body 1, improve functionality, and have good practicality.

[0022] like Figure 1 , Figure 4 and Figure 5As shown, a cleaning assembly is provided inside the discharge pipe 5, and the cleaning assembly includes a cleaning scraper ring 14 arranged at one end of the discharge pipe 5, a limiting pull rod 15 is fixed on the top of one side surface of the cleaning scraper ring 14, and the outer surface of the cleaning scraper ring 14 is tightly fitted with the inner wall of the discharge pipe 5, and the cross-section of the limiting pull rod 15 is "L"-shaped, and one end of the limiting pull rod 15 extends to the outside of the opening of the discharge pipe 5, and a connecting clamp ring 16 is provided on the inner surface of one end of the limiting pull rod 15, and a connecting protrusion 17 is installed on the outer top surface of one end of the discharge pipe 5. The connecting clamp ring 16 is engaged with the connecting protrusion 17, which is convenient for workers to clean the inside of the discharge pipe 5, so that there will be no polyurethane dispersion residue in the discharge pipe 5, thereby avoiding waste, and the operation is convenient and quick, and the practical effect is good.

[0023] The utility model provides a reactor for synthesizing epoxy-modified waterborne polyurethane dispersion, and the specific working principle is as follows: when the heating component is installed in the early stage of the utility model, the electric heating wire 10 is first pushed to move toward the outer surface of the reactor body 1, so that the electric heating wire 10 can be limitedly engaged to the inside of the limiting card groove 11 on the outer surface of the reactor body 1. At this time, the electric heating wire 10 can be limitedly covered on the outside of the reactor body 1, and then the thermal insulation cotton 12 is adhered to the inner surface of the flexible plate 7, so that the thermal insulation cotton 12 and the flexible plate 7 can be limitedly connected, and then the flexible plate 7 is covered to the outside of the reactor body 1, so that the flexible plate 7 can be limitedly engaged to between the two limiting rings 8 on the outside of the reactor body 1. At this time, the top end surface and the bottom end surface of the flexible plate 7 will be squeezed and fitted with the surface of the rubber ring 13, and at the same time, the surface of the thermal insulation cotton 12 will be closely fitted with the outer surface of the reactor body 1, so that the flexible plate 7 and the thermal insulation cotton 12 can achieve the outer surface of the reactor body 1 When the polyurethane dispersion is stirred and reacted inside the reactor body 1, the heating wire 10 can heat the reactor body 1, which can improve the reaction efficiency of the polyurethane dispersion inside the reactor body 1. At the same time, the polyurethane dispersion is not easy to adhere to the inner wall of the reactor body 1, the functionality is improved, and the practicality is good; when the inside of the discharge pipe 5 needs to be cleaned, the utility model first pulls one end of the limit pull rod 15 to move the limit pull rod 15 to the outside of the discharge pipe 5. At this time, the limit pull rod 15 will drive the connecting clamp 16 to separate from the connecting protrusion 17, and the cleaning scraper ring 14 at the other end of the limit pull rod 15 will also move to the inside of the discharge pipe 5. When the cleaning scraper ring 14 moves, the polyurethane dispersion attached to the inner wall of the discharge pipe 5 can be scraped and cleaned, so that the residual polyurethane dispersion in the discharge pipe 5 can be completely discharged to avoid waste. The operation is convenient and quick, and the practical effect is good.

[0024] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A reactor for synthesizing epoxy-modified waterborne polyurethane dispersion, comprising a reactor body (1), a driving motor (2) is installed in the middle of the top surface of the reactor body (1), a feed inlet (3) is arranged on one side of the top surface of the reactor body (1), a liquid inlet (4) is arranged on the other side of the top surface of the reactor body (1), a fixed base (6) is arranged at the bottom of the reactor body (1), a discharge pipe (5) is fixed to the bottom end surface of the reactor body (1), one end of the discharge pipe (5) extends to the outside of the fixed base (6), and is characterized in that: A heating component is arranged outside the reactor body (1); The heating component comprises an electric heating wire (10) arranged outside the reactor body (1); the outer surface of the reactor body (1) is provided with a limit slot (11) for the electric heating wire (10) to engage; the outside of the reactor body (1) is covered with a flexible plate (7); the top and bottom of the outer surface of the reactor body (1) are symmetrically provided with limit rings (8); the flexible plate (7) is limit-engaged between the two limit slots (11).

2. The reaction kettle for synthesizing epoxy-modified waterborne polyurethane dispersion according to claim 1, characterized in that: The inner surface of the flexible plate (7) is provided with heat-insulating cotton (12), and the surface of the heat-insulating cotton (12) is tightly fitted with the outer surface of the reactor body (1).

3. The reaction kettle for synthesizing epoxy-modified waterborne polyurethane dispersion according to claim 1, characterized in that: The inner surfaces of the two limit slots (11) are both installed with rubber rings (13), and the top end surface and the bottom end surface of the flexible plate (7) are pressed and fitted with the surfaces of the rubber rings (13).

4. The reaction kettle for synthesizing epoxy-modified waterborne polyurethane dispersion according to claim 3, characterized in that: A limiting convex column (9) is installed on the outer surface of the flexible plate (7), and the outer surface of the rubber ring (13) is an inclined surface.

5. The reaction kettle for synthesizing epoxy-modified waterborne polyurethane dispersion according to claim 1, characterized in that: A cleaning assembly is provided inside the discharge pipe (5), and the cleaning assembly includes a cleaning scraper ring (14) provided at one end inside the discharge pipe (5), a limiting pull rod (15) is fixed on the top of one side surface of the cleaning scraper ring (14), one end of the limiting pull rod (15) extends to the outside of the opening of the discharge pipe (5), a connecting clamp (16) is provided on the inner surface of one end of the limiting pull rod (15), and a connecting protrusion (17) is installed on the outer top surface of one end of the discharge pipe (5), and the connecting clamp (16) is snap-connected with the connecting protrusion (17).

6. The reaction kettle for synthesizing epoxy-modified waterborne polyurethane dispersion according to claim 5, characterized in that: The outer surface of the cleaning scraper ring (14) is tightly fitted with the inner wall of the discharge pipe (5), and the cross section of the limiting pull rod (15) is "L"-shaped.

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