Reaction kettle for producing water-based polyester

Abstract

The utility model relates to the technical field of reaction kettle equipment, and discloses a reaction kettle for producing water-based polyester, which comprises a shell, a control box, a top cover, a feed hopper and a motor, the control box is arranged at the center of the front end face of the shell, the top cover is arranged at the upper end of the shell, and the feed hopper is arranged on one side of the center of the upper end face of the top cover. The motor is arranged in the center of the upper end face of the top cover, a heat exchange structure is arranged on the lower portion of one side of the shell, an inner container is arranged in the center of the lower inner wall of the shell, a heat conduction pipe is arranged on the outer side wall of the inner container, and a first anti-sticking layer is arranged on the inner side wall of the inner container. The first anti-sticking layer and the second anti-sticking layers prevent the water-based polyester from sticking to the inner side wall of the inner container and the outer side walls of the stirring rods, later cleaning is facilitated, waste heat can be absorbed through the heat exchange structure, meanwhile, the waste heat can be reused to be matched with the heating rod for rapid heating, and energy consumption is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of reaction kettle equipment, in particular to a reaction kettle used for producing water-based polyester. Background Art

[0002] Water-based polyester can be widely used in coatings, adhesives, fabric coatings and finishing agents, leather finishing agents, paper surface treatment agents and fiber surface treatment agents. During the production process, a reactor is required for processing. Through the structural design and parameter configuration of the container, the heating, evaporation, cooling and low-speed mixing functions required by the process can be achieved.

[0003] In the process of using existing reactors for water-based polyester production, a water cooling system is usually installed to quickly cool down the reactor. However, it consumes a lot of energy to heat it again for reuse. Therefore, those skilled in the art provide a reactor for water-based polyester production to solve the problems raised in the above background technology. Utility Model Content

[0004] The purpose of the utility model is to solve the shortcomings existing in the prior art, and a reactor for water-based polyester production is proposed. The second water pump is started, and the second water pump conveys cold water to the inside of the heat conduction pipe, and the residual heat is absorbed by the heat conduction pipe, and then discharged into the inside of the hot water tank through the three-way valve, so as to facilitate the recovery of the residual heat. When the raw materials are added again for reaction, the first water pump is controlled to start, and the first water pump conveys the hot water in the hot water tank to the inside of the heat conduction pipe, and cooperates with a plurality of heating rods for rapid heating, thereby saving energy.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a reaction kettle for water-based polyester production, comprising a shell, a control box, a top cover, a feed hopper and a motor, wherein the control box is arranged at the center of the front end surface of the shell, the top cover is arranged at the upper end of the shell, the feed hopper is arranged at one side of the center of the upper end surface of the top cover, the motor is arranged at the center of the upper end surface of the top cover, a heat exchange structure is arranged at the lower part of one side of the shell, an inner tank is arranged at the center of the lower inner wall of the shell, a heat conducting pipe is arranged on the outer wall of the inner tank, a first anti-sticking layer is arranged on the inner wall of the inner tank, a connecting shaft is fixedly connected to the output end of the motor on the upper end surface of the top cover, a conductive slip ring is sleeved on the outer wall of the connecting shaft at the upper end of the top cover, the lower end of the connecting shaft passes through the upper end surface of the top cover to the inside of the inner tank, and a plurality of stirring rods are arranged up and down at the center of both side walls, a plurality of the stirring rods are provided with heating rods inside, and a second anti-sticking layer is sleeved on the outer wall of the plurality of the stirring rods;

[0006] Through the above technical scheme, the first anti-sticking layer and multiple second anti-sticking layers can prevent the water-based polyester from sticking to the inner wall of the inner tank and the outer wall of multiple stirring rods, which is convenient for later cleaning. The heat exchange structure can absorb the residual heat and reuse the residual heat to cooperate with the heating rod for rapid heating, saving energy consumption. The conductive slip ring is used to supply electricity to the multiple heating rods, and heating is performed while stirring, which makes the heating more uniform.

[0007] Further, the heat exchange structure includes a hot water tank, a cold water tank, a first water pump, a second water pump, a first three-way valve and a second three-way valve, the cold water tank is arranged at the upper end of the hot water tank, the first water pump is arranged at one side of the center of the lower inner wall of the hot water tank, the first three-way valve is arranged on the output end of the first water pump, one of the input ends of the first three-way valve sequentially penetrates the inner wall of the hot water tank and one side wall of the shell, and the end is connected to one end of the heat conduction pipe, the second water pump is arranged at the center of the lower inner wall of the cold water tank, the second three-way valve is arranged on the output end of the second water pump, the output end of the second three-way valve sequentially penetrates the upper inner wall of the cold water tank and one side wall of the shell, and the end is connected to the other end of the heat conduction pipe;

[0008] Through the above technical scheme, by controlling the start of the second water pump, cold water is transported into the heat pipe through the second three-way valve to absorb waste heat, and then hot water is transported to the hot water tank through the first three-way valve. Then, by controlling the start of the first water pump, the first three-way valve and the second three-way valve change the output end, and hot water is transported into the heat pipe through the first three-way valve to heat the inner tank, which is convenient for rapid heating with multiple heating rods and can also reduce energy consumption.

[0009] Furthermore, a first drain valve is provided at the lower rear end of one side wall of the hot water tank, a second drain valve is provided at the lower rear end of one side wall of the cold water tank, and a water inlet valve is provided at the rear end of one side of the upper end surface of the cold water tank;

[0010] Through the above technical solution, it is convenient to inject cold water through the water inlet valve, and it is also convenient to discharge the hot water inside the hot water tank through the first drain valve, and to discharge the water inside the cold water tank through the second drain valve.

[0011] Furthermore, a discharge valve is provided at one side of the center of the lower end surface of the shell, and the input end of the discharge valve sequentially passes through the lower end surface of the shell and the lower end surface of the inner tank and reaches the lower inner wall of the inner tank;

[0012] Through the above technical solution, the water-soluble polyester after the reaction can be easily discharged by opening the discharge valve.

[0013] Furthermore, a plurality of the heating rods are provided with heating wires inside;

[0014] Through the above technical solution, multiple heating wires can be powered on for heating.

[0015] Furthermore, the first anti-sticking layer and the plurality of second anti-sticking layers are made of polytetrafluoroethylene;

[0016] Through the above technical solution, polytetrafluoroethylene has non-stick properties and high temperature resistance.

[0017] Furthermore, the heat conducting pipe is spirally wound on the outer wall of the inner tank;

[0018] Through the above technical solution, heat conduction can be carried out quickly and evenly.

[0019] The utility model has the following beneficial effects:

[0020] 1. In the utility model, the second water pump is started for the reactor used for water-based polyester production, and the second water pump conveys cold water to the inside of the heat conduction pipe, absorbs the residual heat through the heat conduction pipe, and then discharges it into the hot water tank through the three-way valve, so as to recover the residual heat. When the raw materials are added again for reaction, the first water pump is controlled to start, and the first water pump conveys the hot water in the hot water tank to the inside of the heat conduction pipe, and cooperates with a plurality of heating rods for rapid heating, thus saving energy.

[0021] 2. In the utility model, the motor is started, the motor drives the connecting shaft to rotate, the connecting shaft drives the multiple stirring rods to rotate, and the conductive slip ring is supplied with electric energy. The electric energy is transmitted to the inside of the multiple heating rods through the conductive slip ring. The heating wires inside the multiple heating rods are energized and heated to quickly heat and stir the raw materials. The raw materials are heated while being stirred, so that the heating is more uniform.

[0022] 3. In the utility model, the first anti-sticking layer and the plurality of second anti-sticking layers prevent the inner wall of the inner tank and the outer walls of the plurality of stirring rods from sticking to the raw materials, which facilitates the subsequent cleaning and prevents the mixing of different batches of water-based polyester from affecting the quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a stereogram of a reaction kettle for water-based polyester production proposed by the utility model;

[0024] Figure 2 This is a three-dimensional cross-sectional view of a reaction kettle for water-based polyester production proposed by the utility model;

[0025] Figure 3 for Figure 2 The enlarged schematic diagram of point A in the middle;

[0026] Figure 4 for Figure 2 A magnified schematic diagram of point B in the middle.

[0027] Legend:

[0028] 1. Shell; 2. Control box; 3. Heat exchange structure; 301. Hot water tank; 302. Cold water tank; 303. First drain valve; 304. Water inlet valve; 305. First water pump; 306. Second drain valve; 307. Second water pump; 308. First three-way valve; 309. Second three-way valve; 4. Motor; 5. Feed hopper; 6. Top cover; 7. Connecting shaft; 8. Conductive slip ring; 9. First anti-sticking layer; 10. Heat pipe; 11. Inner tank; 12. Heating rod; 13. Stirring rod; 14. Second anti-sticking layer; 15. Discharge valve. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0030] Reference Figure 1-4 The utility model provides an embodiment: a reactor for water-based polyester production, comprising a shell 1, a control box 2, a top cover 6, a feed hopper 5 and a motor 4, the control box 2 is arranged at the center of the front end surface of the shell 1, the top cover 6 is arranged at the upper end of the shell 1, the feed hopper 5 is arranged at one side of the center of the upper end surface of the top cover 6, the motor 4 is arranged at the center of the upper end surface of the top cover 6, a heat exchange structure 3 is arranged at the lower part of one side of the shell 1, an inner liner 11 is arranged at the center of the lower inner wall of the shell 1, a heat conduction pipe 10 is arranged on the outer wall of the inner liner 11, and a first anti-sticking layer 9 is arranged on the inner wall of the inner liner 11.

[0031] A connecting shaft 7 is fixedly connected to the output end of the motor 4 on the upper end surface of the top cover 6, and a conductive slip ring 8 is sleeved on the outer side wall of the connecting shaft 7 at the upper end of the top cover 6. The lower end of the connecting shaft 7 passes through the upper end surface of the top cover 6 to the inside of the inner tank 11, and a plurality of stirring rods 13 are arranged up and down at the center of the two side walls. A heating rod 12 is arranged inside the plurality of stirring rods 13. The heat exchange structure 3 can absorb the waste heat and reuse the waste heat to cooperate with the heating rod 12 for rapid heating, saving energy consumption. The conductive slip ring 8 is used to supply electricity to the plurality of heating rods 12, and heating is performed while stirring, so as to make the heating more uniform. The outer side walls of the plurality of stirring rods 13 are sleeved with a second anti-sticking layer 14. The first anti-sticking layer 9 and the plurality of second anti-sticking layers 14 prevent the water-based polyester from adhering to the inner side wall of the inner tank 11 and the outer side wall of the plurality of stirring rods 13, so as to facilitate later cleaning.

[0032] The heat exchange structure 3 includes a hot water tank 301, a cold water tank 302, a first water pump 305, a second water pump 307, a first three-way valve 308 and a second three-way valve 309. The cold water tank 302 is arranged at the upper end of the hot water tank 301, the first water pump 305 is arranged at the center of the lower inner wall of the hot water tank 301 and close to one side, the first three-way valve 308 is arranged on the output end of the first water pump 305, one of the input ends of the first three-way valve 308 passes through the inner wall of the hot water tank 301 and one side wall of the shell 1 in sequence, and the end is connected to one end of the heat conduction pipe 10, the second water pump 307 is arranged at the center of the lower inner wall of the cold water tank 302, and the second three-way valve 309 is arranged on the output end of the second water pump 307 The output end of the second three-way valve 309 passes through the inner wall of the cold water tank 302 and the side wall of the shell 1 in sequence, and the end is connected to the other end of the heat pipe 10. By controlling the second water pump 307 to start, the cold water is transported into the heat pipe 10 through the second three-way valve 309 to absorb the waste heat, and then the hot water is transported to the hot water tank 301 through the first three-way valve 308. Then, by controlling the first water pump 305 to start, the first three-way valve 308 and the second three-way valve 309 change the output end, and the hot water is transported into the heat pipe 10 through the first three-way valve 308 to heat the inner tank 11, which is convenient for cooperating with multiple heating rods 12 for rapid heating and can also reduce energy consumption.

[0033] A first drain valve 303 is provided at the lower rear end of one side wall of the hot water tank 301, a second drain valve 306 is provided at the lower rear end of one side wall of the cold water tank 302, and an inlet valve 304 is provided at the rear end of one side of the upper end surface of the cold water tank 302, so as to facilitate the injection of cold water through the inlet valve 304, discharge the hot water inside the hot water tank 301 through the first drain valve 303, and discharge the water inside the cold water tank 302 through the second drain valve 306.

[0034] A discharge valve 15 is provided at one side of the center of the lower end surface of the outer shell 1. The input end of the discharge valve 15 passes through the lower end surface of the outer shell 1 and the lower end surface of the inner tank 11 in sequence and passes to the lower inner wall of the inner tank 11, so that the water-soluble polyester after the reaction can be discharged by opening the discharge valve 15. A plurality of heating rods 12 are provided with heating wires inside, so that the plurality of heating wires can be powered on for heating. The first anti-sticking layer 9 and the plurality of second anti-sticking layers 14 are made of polytetrafluoroethylene, which has non-stick properties and high temperature resistance. The heat pipe 10 is spirally wound on the outer wall of the inner tank 11, so as to facilitate rapid and uniform heat conduction.

[0035] Working principle: when in use, raw materials are added through the feed hopper 5, and the motor 4 is started. The motor 4 drives the connecting shaft 7 to rotate, and the connecting shaft 7 drives the multiple stirring rods 13 to rotate, and the conductive slip ring 8 is supplied with electric energy. The electric energy is transmitted to the multiple heating rods 12 through the conductive slip ring 8. The heating wires inside the multiple heating rods 12 are energized and heated to quickly heat and stir the raw materials. The raw materials are heated while being stirred to make the heating more uniform. After the mixing is completed, the raw materials are discharged through the discharge valve 15. After the raw materials are discharged, cold water is added to the cold water tank 302 through the water inlet valve 304, and the second water pump 307 is started. The second water pump 307 transports the cold water to the inside of the heat pipe 10, and the residual heat is absorbed by the heat pipe 10. Then, the cold water is discharged into the hot water tank 301 through the first three-way valve 308, so as to facilitate the recovery of the residual heat.

[0036] The first anti-sticking layer 9 and the multiple second anti-sticking layers 14 are used to prevent the raw materials from sticking to the inner wall of the inner tank 11 and the outer walls of the multiple stirring rods 13, which is convenient for later cleaning and prevents the mixing of different batches of water-based polyester from affecting the quality. When the raw materials are added again for reaction, the first water pump 305 is controlled to start, and the first three-way valve 308 and the second three-way valve 309 change the output end, and the hot water is transported into the heat pipe 10 through the first three-way valve 308 to heat the inner tank 11, which is convenient for rapid heating with multiple heating rods 12, and can also reduce energy consumption and save energy.

[0037] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A reaction kettle for producing water-based polyester, comprising a housing (1), a control box (2), a top cover (6), a feed hopper (5) and a motor (4), wherein the control box (2) is arranged at the center of the front end surface of the housing (1), the top cover (6) is arranged at the upper end of the housing (1), the feed hopper (5) is arranged at one side of the center of the upper end surface of the top cover (6), and the motor (4) is arranged at the center of the upper end surface of the top cover (6), characterized in that: A heat exchange structure (3) is provided at the lower part of one side of the shell (1); an inner liner (11) is provided at the center of the lower inner wall of the shell (1); a heat conduction pipe (10) is provided on the outer wall of the inner liner (11); a first anti-sticking layer (9) is provided on the inner wall of the inner liner (11); a connecting shaft (7) is fixedly connected to the output end of the motor (4) on the upper end surface of the top cover (6); a conductive slip ring (8) is sleeved on the outer wall of the connecting shaft (7) at the upper end of the top cover (6); the lower end of the connecting shaft (7) passes through the upper end surface of the top cover (6) and passes into the inner liner (11); and a plurality of stirring rods (13) are arranged in an upper and lower manner at the center of both side walls; a heating rod (12) is provided inside each of the plurality of stirring rods (13); and a second anti-sticking layer (14) is sleeved on the outer wall of each of the plurality of stirring rods (13).

2. A reaction kettle for waterborne polyester production according to claim 1, characterized in that: The heat exchange structure (3) comprises a hot water tank (301), a cold water tank (302), a first water pump (305), a second water pump (307), a first three-way valve (308) and a second three-way valve (309); the cold water tank (302) is arranged at the upper end of the hot water tank (301); the first water pump (305) is arranged at one side of the center of the lower inner wall of the hot water tank (301); the first three-way valve (308) is arranged at the output end of the first water pump (305); and the first three-way valve (309) is arranged at the output end of the first water pump (305). 8) One of the input ends sequentially penetrates the inner wall of the hot water tank (301) and the side wall of the outer shell (1), and the end is connected to one end of the heat-conducting pipe (10); the second water pump (307) is arranged at the center of the lower inner wall of the cold water tank (302); the second three-way valve (309) is arranged on the output end of the second water pump (307); the output end of the second three-way valve (309) sequentially penetrates the upper inner wall of the cold water tank (302) and the side wall of the outer shell (1), and the end is connected to the other end of the heat-conducting pipe (10).

3. A reaction kettle for waterborne polyester production according to claim 2, characterized in that: A first drain valve (303) is provided at a lower portion of the rear end of one side wall of the hot water tank (301), a second drain valve (306) is provided at a lower portion of the rear end of one side wall of the cold water tank (302), and a water inlet valve (304) is provided at a rear portion of one side of the upper end surface of the cold water tank (302).

4. A reaction kettle for water-based polyester production according to claim 1, characterized in that: A discharge valve (15) is provided at one side of the center of the lower end surface of the outer shell (1), and the input end of the discharge valve (15) passes through the lower end surface of the outer shell (1) and the lower end surface of the inner liner (11) in sequence and is connected to the lower inner wall of the inner liner (11).

5. The reaction kettle for waterborne polyester production according to claim 1, characterized in that: A heating wire is arranged inside each of the plurality of heating rods (12).

6. The reaction kettle for waterborne polyester production according to claim 1, characterized in that: The first anti-sticking layer (9) and the plurality of second anti-sticking layers (14) are both made of polytetrafluoroethylene.

7. The reaction kettle for waterborne polyester production according to claim 1, characterized in that: The heat conducting pipe (10) is spirally wound on the outer wall of the inner container (11).

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