CN219209907U - A self-cleaning solvent-free polyurethane mixing equipment - Google Patents

Abstract

The technical solution discloses a self-cleaning solvent-free polyurethane stirring device, which includes a kettle body and a first fixed plate; a second fixed plate is connected above the first fixed plate, and a heater is fixedly installed on the top side of the second fixed plate; The inner side of the kettle is connected with a kettle body, and a temperature sensor is arranged on the kettle body, and the temperature sensor is connected to the outside of the stirred kettle body, and the temperature measuring end of the temperature sensor is penetrated into the kettle body; a kettle cover is installed on the top of the kettle body, and the top of the kettle cover is sealed A connecting plate is provided, and a stirring motor is arranged on the connecting plate, and the stirring shaft of the stirring motor extends in the kettle body; a valve is connected under the kettle body, the valve is connected to a filter through a pipeline, and the filter is connected to a viscosity pump through a pipeline. The technical solution solves the problems of matching heating and timely cleaning in the current solvent-free process.

Description

A self-cleaning solvent-free polyurethane mixing equipment

technical field

The utility model relates to polyurethane production equipment, in particular to a self-cleaning solvent-free polyurethane stirring equipment.

Background technique

At present, the commonly used polyurethane resin is to use isocyanate and polyol as raw materials to synthesize macromolecular polymers, dissolve and disperse them in organic solvents, and form them on the surface of substrates by drying or water bath coagulation, so as to obtain a series of products. The pollution of such products is relatively serious, and there are problems such as the volatilization of organic solvents such as DMF to pollute the environment. Later, some researchers developed a solvent-free polyurethane resin product based on in-situ synthesis method, which can be quickly cured in a short time and released without solvents. , is an efficient and environmentally friendly product. As such products are more and more widely used in the market, there is an urgent need for a suitable and corresponding solvent-free polyurethane stirred tank equipment.

The existing polyurethane stirring reactor can only stir and disperse the polyurethane raw material, and its function is relatively single, while the solvent-free process needs to control the temperature of the raw material, and at the same time, the kettle body needs to be cleaned in time after the reaction is completed, otherwise it will easily affect the quality of the finished product And the formation of agglomerates on the surface of the kettle affects subsequent production.

In order to avoid the above-mentioned situation, there is an urgent need for a stirring device that can solve the above-mentioned problems.

Utility model content

The purpose of the utility model is to provide a self-cleaning solvent-free polyurethane stirring equipment, which solves the problems of matching heating and timely cleaning in the current solvent-free process.

A self-cleaning solvent-free polyurethane stirring device, including a kettle body and a first fixed plate; a second fixed plate is connected above the first fixed plate, and a heater is fixedly installed on the top side of the second fixed plate; a kettle is connected inside the heater Body, the kettle body is provided with a temperature sensor, the temperature sensor is connected to the outside of the stirring kettle body, and the temperature measuring end of the temperature sensor is penetrated into the kettle body; There is a stirring motor on the board, and the stirring shaft of the stirring motor extends in the kettle body; a valve is connected to the bottom of the kettle body, and the valve is connected to a filter through a pipeline, and the filter is connected to a viscosity pump through a pipeline, and the viscosity pump is connected to an extension to the recovery The input pipe of the storage tank is provided with a drip nozzle on the outside of the input pipe, and a recovery storage tank and a cleaning liquid storage tank are installed on the other side of the second fixing plate.

An annular nozzle is installed on the left side of the kettle body, and the annular nozzle is equipped with a conveying pipe through bolts, and the conveying pipe extends to the side of the kettle body and is fixedly connected with a three-way switching valve.

A degassing port is installed on the right side of the kettle body, and a hose is fixedly connected to the outside of the degassing port, and the hose is connected to an air extraction device.

The inside of the cleaning liquid storage tank is equipped with an organic cleaning liquid, the top of the cleaning liquid storage tank is provided with a pump body, and the output end of the pump body is connected to one port of the three-way switching valve, and the other port of the three-way switching valve is connected to the recovery storage tank. The pump body at the top is connected.

The filter includes a cylinder body, a filter screen and a sewage discharge assembly; the upper end of the cylinder body is connected to a sewage pump through a pipeline, and the input end of the cylinder body is fixedly connected to a fixed spiral ring through a screw, and a filter screen is fixedly connected to the fixed spiral ring, and the filter screen The organic filter membrane material is used, the lower end of the cylinder body is connected with a sewage assembly through bolts, and the side surface of the cylinder body is fixedly connected with an electrical control box.

The beneficial effects of the utility model are:

1. The utility model installs a filter in the pipeline under the kettle body, which is beneficial to filter the solidified matter in the cleaning liquid, ensures that the cleaning liquid flows smoothly into the recovery storage tank, and is conducive to the recycling of the recovery liquid to the kettle body.

2. The utility model installs a recovery storage tank and a cleaning liquid storage tank on the other side of the second fixed plate, and uses a three-way switching valve, a filter and a viscosity pump to make the cleaning liquid circulate and clean the reactor, which improves the reaction rate. The cleaning efficiency of the kettle is improved, and the environmental pollution caused by the volatilization of the organic cleaning solution is avoided, which ensures the quality and safety of the production of solvent-free polyurethane raw materials.

3. The utility model is equipped with a heater on the side of the kettle body and a temperature sensor inside the kettle body, which is beneficial to control the reaction of the solvent-free polyurethane material, and at the same time facilitates the drying of the kettle body after cleaning, improving the production efficiency and Equipment availability.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the structural representation of filter of the present utility model;

Fig. 3 is the structural representation of the cleaning assembly of the utility model;

In the figure: 1. Kettle body, 2. Heater, 3. Stirring motor, 4. Stirring shaft, 5. Degassing port, 6. Kettle cover, 7. Temperature sensor, 8. Valve, 9. Filter, 901. Filtration Net, 902. Fixed screw ring, 903. Sewage pump, 904. Electrical control box, 905. Sewage component, 906. Cylinder, 10. Viscosity pump, 11. First fixed plate, 12. Three-way switching valve, 13. Pump body, 14. Recovery storage tank, 15. Cleaning liquid storage tank, 16. Drop nozzle, 17. Delivery pipe, 18. Ring nozzle, 19. Second fixing plate, 20. Input pipe.

Detailed ways

The implementation of the present utility model is illustrated by specific specific examples below, and those skilled in the art can easily understand other advantages and effects of the present utility model from the content disclosed in this specification. It should be noted that the structures, proportions, sizes, etc. shown in the drawings attached to this specification are only used to match the content disclosed in the specification, for those who are familiar with this technology to understand and read, and are not used to limit the implementation of the utility model Therefore, it has no technical substantive meaning. Any modification of structure, change of proportional relationship or adjustment of size should still fall within the scope of The technical content disclosed by the utility model must be within the scope covered. At the same time, terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description and are not used to limit this specification. The practicable range of the utility model, and the change or adjustment of its relative relationship, without any substantial change in the technical content, shall also be regarded as the practicable scope of the utility model.

Please refer to Fig. 1 to Fig. 3, the equipment design among the figure kettle body 1 and first fixing plate 11 and other parts, these parts all can adopt existing fittings or carry out adaptive selection according to this case. A second fixing plate 19 is connected above the first fixing plate 11 so as to be fixed and supported by the first fixing plate 11 , and the kettle body 1 is used as a reaction vessel. A heater 2 is fixedly installed on one side of the top of the second fixing plate 19 , and the inner side of the heater 2 is arranged on the kettle body 1 . The kettle body 1 is equipped with a temperature sensor 7 at the same time. The temperature sensor 7 is connected to the outside of the stirred kettle body 1 by bolts, and the temperature measuring end is pierced into the kettle body 1, so that the temperature change of the material in the kettle body can be monitored in real time, which is convenient for heating. 2 to adjust the speed of the synthesis reaction and the degree of reaction; the top of the kettle body 1 is equipped with a kettle cover 6 through bolts, and the top of the kettle cover 6 is sealed with a connection plate, the stirring motor 3 is installed on the connection plate, and its stirring shaft 4 extends to the stirring tank The stirring work is completed in body 1. The bottom of the kettle body 1 is connected with a valve 8, the valve 8 is equipped with a filter 9 through the pipeline, the filter 9 is connected with the viscosity pump 10 through the pipeline, and the viscosity pump 10 is connected with an input pipe 20 extending to the recovery storage tank 14 by bolts, The drip nozzle 16 is installed on the outside of the input pipe 20, thereby completing the set work; the other side of the second fixed plate 19 is installed with a recovery storage tank 14 and a cleaning liquid storage tank 15; wherein the recovery storage tank 14 is used for the smooth recovery of the cleaning liquid , the cleaning liquid storage tank 15 is used as a source of cleaning liquid.

An annular nozzle 18 is installed on the left side of the kettle body 1, and the annular nozzle 18 is equipped with a conveying pipe 17 through bolts. The conveying pipe 17 extends to the side of the kettle body 1 and is fixedly connected with a three-way switching valve 12. The conveying pipe 17 can switch the three-way The cleaning liquid in the valve 12 is sent to the annular spray nozzle 18 for spraying, so as to dissolve and clean the residual impurities in the kettle body 1 .

The degassing port 5 is installed on the right side of the kettle body 1, and a hose is fixed outside the degassing port 5. The air extraction device is connected to the hose, and the gas in the kettle body 1 is discharged from the hose, thereby controlling the moisture content of the kettle body 1 and reducing its Influence on material reaction.

The inside of the cleaning liquid storage tank 15 is filled with organic cleaning liquid. The top of the cleaning liquid storage tank 15 is provided with a pump body 13, and the output end of the pump body 13 is connected with a port of the three-way switching valve 12 to form a feeding channel. The three-way switching valve 12 The other port communicates with the pump body 13 on the top of the recovery storage tank 14 to form a return passage. During the switching process of the three-way switching valve, the organic cleaning liquid can realize the circular cleaning of the kettle body, ensuring the high efficiency and sanitation of production.

The filter 9 includes a cylinder body 906, a filter screen 901 and a sewage discharge assembly 905; the upper end of the cylinder body 906 is connected with a sewage pump 903 through a pipeline, thereby increasing the flow rate of the material with a relatively slow flow rate into the sewage discharge assembly 905, and the cylinder body 906 is input The end is fixedly connected with a fixed spiral ring 902 by screws, and the fixed spiral ring 902 is fixedly connected with a filter screen 901. The filter screen 901 is made of organic filter membrane material, and the lower end of the cylinder 906 is connected with a sewage assembly 905 by bolts. The electrical control box 904 is fixedly connected, and the filter screen 901 can filter the solidified matter in the organic cleaning liquid, so as to ensure that the cleaning liquid flows smoothly into the recovery storage tank 14, so as to facilitate the circular cleaning of the kettle body 1.

The specific implementation steps and working principle of this embodiment are:

When using the kettle body 1, open the kettle cover 6 and pour the materials into it, use the stirring device to stir and mix it, open the degassing device to discharge the water vapor in the kettle body 1 from the degassing port 5, and turn on the heater 2 at the same time. It is heated, and the heating temperature needs to ensure the progress of the reaction and ensure that the raw materials are heated evenly. The temperature sensor 7 is used to observe and adjust the reaction state of the materials to ensure the complete reaction of the materials.

When using the cleaning device, pour organic cleaning liquid into the cleaning liquid storage tank 15, then open the pump body 13 to pump the cleaning liquid out, and the cleaning liquid is sprayed out from the annular nozzle 18 through the three-way switching valve 12 and the delivery pipe 17, and the The stirring device cleans the kettle body 1, opens the valve 8, the cleaning liquid passes through the filter 9 to remove the solidified matter, and then sprays out from the drip nozzle 16 through the viscosity pump 10 and the input pipe 20 to the recovery storage tank 14, and switches the three-way switching valve 12. Turn on the pump body 13, and the recovery liquid is sprayed out from the annular nozzle 18 again, and the kettle body 1 is circulated and cleaned.

The specific embodiments described above are only used to explain the technical solution, and are not intended to limit the technical solution. In the description of this technical solution, it should be noted that the orientation or positional relationship indicated by terms such as "upper" and "inner" are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the technical solution and Simplified descriptions do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as limiting the technical solution.

At the same time, in the description of this technical solution, it should be noted that, unless otherwise clearly specified and limited, the terms "fixed" and "fit" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it can be directly connected or indirectly connected through an intermediary, and it can be the internal communication of two elements or the interaction relationship between two elements. Those of ordinary skill in the art can understand the specific meanings of the above terms in this technical solution according to specific situations.

Although the embodiments of the technical solution have been shown and described, those skilled in the art can understand that various changes and modifications can be made to these embodiments without departing from the principle and spirit of the technical solution , replacement and modification, the scope of the technical solution is defined by the appended claims and their equivalents.

Claims (5)

1. A self-cleaning solvent-free polyurethane stirring equipment, characterized in that it includes a kettle body (1) and a first fixing plate (11); a second fixing plate (19) is connected above the first fixing plate (11), and the second A heater (2) is fixedly installed on one side of the top of the two fixed plates (19); the inner side of the heater (2) is connected with a kettle body (1), and the kettle body (1) is provided with a temperature sensor (7), and the temperature sensor (7) ) is connected to the outside of the stirring kettle body (1), and the temperature measuring end of the temperature sensor (7) is penetrated into the kettle body (1); the kettle body (1) is equipped with a kettle cover (6), and the kettle cover (6 ) The top is sealed with a connecting plate, and the connecting plate is equipped with a stirring motor (3), and the stirring shaft (4) of the stirring motor (3) extends in the kettle body (1); the valve (8) is connected under the kettle body (1) , the valve (8) is connected to the filter (9) through the pipeline, the filter (9) is connected to the viscosity pump (10) through the pipeline, and the viscosity pump (10) is connected to the input pipe extending to the recovery storage tank (14) (20), the drip nozzle (16) is installed on the outside of the input pipe (20), and the recovery storage tank (14) and cleaning liquid storage tank (15) are installed on the other side of the second fixed plate (19). 2. A self-cleaning solvent-free polyurethane stirring equipment according to claim 1, characterized in that: the left side of the kettle body (1) is equipped with an annular nozzle (18), and the annular nozzle (18) is installed with a bolt The delivery pipe (17), the delivery pipe (17) extends to the side of the kettle body (1) and is fixedly connected with a three-way switching valve (12). 3. A self-cleaning solvent-free polyurethane stirring device according to claim 2, characterized in that: a degassing port (5) is installed on the right side of the kettle body (1), and a hose is fixedly connected to the outside of the degassing port (5) , the hose is connected to the suction unit. 4. The self-cleaning solvent-free polyurethane stirring equipment according to claim 3, characterized in that: the cleaning liquid storage tank (15) is equipped with organic cleaning liquid inside, and the top of the cleaning liquid storage tank (15) is provided with a pump body (13), and the output end of the pump body (13) is connected with one port of the three-way switching valve (12), and the other port of the three-way switching valve (12) is connected with the pump body (13) on the top of the recovery storage tank (14) ) are connected. 5. A self-cleaning solvent-free polyurethane stirring device according to claim 4, characterized in that: the filter (9) includes a cylinder (906), a filter (901) and a sewage assembly (905); the cylinder The upper end of the body (906) is connected to the sewage pump (903) through the pipeline, the input end of the cylinder body (906) is fixedly connected to the fixed spiral ring (902) by screws, and the filter screen (901) is fixedly connected to the fixed spiral ring (902) , the filter screen (901) is made of organic filter membrane material, the lower end of the cylinder (906) is connected with a sewage assembly (905) by bolts, and the side surface of the cylinder (906) is fixedly connected with an electrical control box (904).

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