Acrylic resin production stirring kettle

Abstract

The utility model discloses an acrylic resin production stirring kettle which is characterized in that a flowing groove and a sprinkler head are arranged in a kettle body, an energy gathering tank is arranged, and a hot water cavity, a standby cavity and a cold water cavity are arranged in the energy gathering tank, so that hot water in the hot water cavity exchanges heat with the kettle body through the flowing groove during polymerization reaction; when the temperature in the kettle body is too high, cold water in the cold water cavity is poured into the flowing groove to absorb heat in the kettle body, warm water completing heat exchange is stored in the standby cavity, and raw materials are discharged after processing is completed; the inner wall of the kettle body is flushed through hot water in the hot water cavity and the sprinkler head, warm water in the standby cavity is fed into the hot water cavity for supplementing, energy consumption during heating is reduced, raw materials in the kettle body can be rapidly cooled through the arrangement, redundant heat energy in the kettle body can be utilized, and energy consumption is reduced.

Description

Technical Field

[0001] The utility model relates to the field of stirring, and more specifically, to a stirring kettle for producing acrylic resin. Background Art

[0002] Acrylic resin is a high molecular polymer formed by polymerization or copolymerization of acrylic acid, methacrylic acid and its derivative monomers. During the processing of acrylic resin, the raw materials need to be mixed in a stirring kettle and the polymerization reaction needs to be carried out in the stirring kettle.

[0003] Since polymerization reaction usually involves the formation of new chemical bonds between monomer molecules to form polymer chains. In order to overcome the energy barrier (i.e. activation energy) of intermolecular bonding, sufficient energy needs to be provided. The average kinetic energy of monomer molecules can be increased by heating, so that more molecules can obtain high enough energy to effectively collide and form new chemical bonds, start and promote polymerization reaction, so a heating module is mostly provided in the stirred tank, which helps the polymerization reaction, but a large amount of reaction heat (exothermic reaction) will be released during the polymerization reaction, if the excess heat is not removed in time, the temperature of the reaction system will rise rapidly, which may cause the reaction to run away or even a safety accident, and the existing stirred tanks mostly do not have the ability to cool down quickly, and these excess reaction heat energies are not recycled, resulting in a certain amount of energy loss.

[0004] Based on the above, the purpose of the utility model is to provide a stirred kettle for producing acrylic resin to solve the above problems. Utility Model Content

[0005] In view of the deficiencies in the prior art, the utility model aims to provide a stirring kettle for producing acrylic resin. The utility model arranges a flow groove and a sprinkler nozzle in the kettle body, and then arranges an energy collecting tank. A hot water chamber, a spare chamber and a cold water chamber are arranged in the energy collecting tank. When a polymerization reaction is carried out, the hot water in the hot water chamber exchanges heat with the kettle body through the flow groove, thereby increasing the temperature of the inner chamber of the kettle body to assist the polymerization reaction. When the temperature in the kettle body is too high, the heat in the kettle body is absorbed by pouring the cold water in the cold water chamber into the flow groove, and the warm water after the heat exchange is stored in the spare chamber. After the processing is completed, the raw materials are discharged, and the inner wall of the kettle body is rinsed with the hot water in the hot water chamber and the sprinkler nozzle, and the warm water in the spare chamber is sent to the hot water chamber for replenishment, thereby reducing the energy consumption during heating. With such an arrangement, the raw materials in the kettle body can be quickly cooled down, and the excess heat energy in the kettle body can be utilized to reduce energy consumption.

[0006] The above technical purpose of the utility model is achieved through the following technical solutions: an acrylic resin production stirring kettle, comprising a kettle body, a stirring paddle and a driving mechanism for driving the stirring paddle to rotate are arranged on the kettle body, an energy-gathering tank, a three-way valve 1, a three-way valve 2, a three-way valve 3, a water pump 1 and a water pump 2 are arranged beside the kettle body, a hot water chamber, a standby chamber and a cold water chamber are arranged in the energy-gathering tank, a heater is arranged in the hot water chamber, a feed pipe is arranged on the cold water chamber, a flow trough for the flow of hot and cold water and a plurality of flow channels are arranged in the kettle body A sprinkler head, the three valve ports of the three-way valve one are respectively fixedly connected with the water inlet, the hot water chamber and the cold water chamber of the water pump one, the three valve ports of the three-way valve two are respectively fixedly connected with one end of the flow slot, the sprinkler head and the water outlet of the water pump one, the three valve ports of the three-way valve three are respectively fixedly connected with the hot water chamber, the standby chamber and the other end of the flow slot, the water inlet and the water outlet of the water pump two are respectively fixedly connected with the standby chamber and the hot water chamber, and the three-way valve one, the three-way valve two and the three-way valve three are all provided with a switching mechanism for driving them to perform guide switching.

[0007] By adopting the above technical scheme, when it is necessary to carry out acrylic resin polymerization reaction processing, the raw materials are poured into the kettle body, and then the feed pipe is connected to the external water supply equipment, and then the water in the hot water cavity is heated by the heater, and then the heated hot water is input into the flow groove through the water pump 1 and the three-way valve 1. After the hot water passes through the flow groove, it will return to the hot water cavity through the three-way valve 3 for recycling. In the process of the hot water passing through the flow groove, the heat exchange is carried out with the kettle body, so as to achieve the effect of increasing the temperature of the inner cavity of the kettle body to assist the polymerization reaction. When the raw materials release a large amount of heat energy in the polymerization reaction and make the temperature of the inner cavity of the kettle body too high, the three-way valve 1 is switched to the water pump 1 to be connected to the cold water cavity, and then ... Valve three is switched to connect the flow slot with the spare chamber, and cold water enters the cold water chamber through the feed slot, and then flows into the spare chamber through three-way valve one, the flow slot, and three-way valve three in sequence. The cold water absorbs the temperature in the kettle body during the flow to prevent the reaction system from being too hot. After the polymerization reaction is completed, the raw materials are discharged, and then the three-way valve one is switched to connect the water pump one with the hot water chamber, and the three-way valve two is switched to connect the water pump one with the sprinkler nozzle, and then the hot water in the hot water chamber is pumped out through the water pump one, and then the inner cavity of the kettle body is rinsed with hot water through the sprinkler nozzle. After cleaning, the warm water in the spare chamber is sent to the hot water chamber through the water pump two for replenishment, thereby reducing energy consumption during heating.

[0008] The utility model is further configured as follows: the switching mechanism includes a motor and a reducer, the output shaft of the motor is fixedly connected to the input shaft of the reducer, the output shaft of the reducer is fixedly connected to the valve core of three-way valve one, three-way valve two or three-way valve three, and the reducer is provided with a control mechanism for controlling the start and stop of the motor.

[0009] The utility model is further configured as follows: the control mechanism comprises a cam fixedly connected to the output shaft of the reducer, and two sensors are arranged on the reducer.

[0010] The utility model is further configured as follows: the control mechanism also includes a PLC controller and two temperature sensors, the two temperature sensors are respectively arranged in the inner cavity of the kettle body and the hot water cavity, and the PLC controller is electrically connected to the temperature sensor, the motor, the heater, the sensor, the water pump one and the water pump two.

[0011] The utility model is further configured as follows: the flow groove is arranged in a spiral shape.

[0012] In summary, the utility model has the following beneficial effects:

[0013] The utility model arranges a flow groove and a sprinkler nozzle in a kettle body, and then arranges an energy gathering tank, and arranges a hot water chamber, a spare chamber and a cold water chamber in the energy gathering tank. When a polymerization reaction is carried out, the hot water in the hot water chamber exchanges heat with the kettle body through the flow groove, thereby increasing the temperature of the inner chamber of the kettle body to assist the polymerization reaction. When the temperature in the kettle body is too high, the heat in the kettle body is absorbed by pouring the cold water in the cold water chamber into the flow groove, and the warm water that completes the heat exchange is stored in the spare chamber. After the processing is completed, the raw materials are discharged, and the inner wall of the kettle body is rinsed with the hot water in the hot water chamber and the sprinkler nozzle, and the warm water in the spare chamber is sent to the hot water chamber for replenishment, thereby reducing the energy consumption during heating. With such an arrangement, the raw materials in the kettle body can be quickly cooled, and the excess heat energy in the kettle body can be utilized, thereby reducing energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The overall structure of this utility model patent is shown in FIG. Figure 1 , showing the overall structure of the stirred tank;

[0015] Figure 2 The overall structure of this utility model patent is shown in FIG. Figure 2 , showing the structure of the switching mechanism.

[0016] In the figure: 1. kettle body; 2. stirring paddle; 3. driving mechanism; 4. energy collecting tank; 5. three-way valve one; 6. three-way valve two; 7. three-way valve three; 8. water pump one; 9. water pump two; 10. hot water chamber; 11. spare chamber; 12. cold water chamber; 13. heater; 14. feed pipe; 15. flow trough; 16. sprinkler head; 17. motor; 18. reducer; 19. cam; 20. sensor; 21. temperature sensor. DETAILED DESCRIPTION

[0017] In order to enable those skilled in the art to better understand the technical solution of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific embodiments. It should be noted that the embodiments of the present application and the features therein can be combined with each other without conflict.

[0018] In the description of the present invention, it should be noted that the terms "upper", "lower", "inside", "outside", "top / bottom" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0019] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "set / connected", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0020] The utility model is described in detail below in conjunction with the accompanying drawings.

[0021] An acrylic resin production stirred tank, such as Figure 1-Figure 2 As shown, it includes a kettle body 1, a stirring paddle 2 and a driving mechanism 3 for driving the stirring paddle 2 to rotate are rotatably connected to the kettle body 1, the driving mechanism is a DC motor, an energy-gathering tank 4, a three-way valve 1 5, a three-way valve 2 6, a three-way valve 3 7, a water pump 1 8 and a water pump 2 9 are arranged beside the kettle body 1, a hot water chamber 10, a spare chamber 11 and a cold water chamber 12 are provided in the energy-gathering tank, a heater 13 is installed in the hot water chamber 10, a feed pipe 14 is fixedly connected to the cold water chamber 12, a flow groove 15 for the flow of cold and hot water is provided in the kettle body 1, and a plurality of sprinkler heads 16 are installed, a three-way valve The three valve ports of three-way valve 15 are fixedly connected to the water inlet of water pump 18, hot water chamber 10 and cold water chamber 12 respectively, the three valve ports of three-way valve 26 are fixedly connected to one end of flow groove 15, sprinkler head 16 and the water outlet of water pump 18 respectively, the three valve ports of three-way valve 37 are fixedly connected to the hot water chamber 10, spare chamber 11 and the other end of flow groove 15 respectively, the water inlet and water outlet of water pump 29 are fixedly connected to the spare chamber 11 and hot water chamber 10 respectively, and three-way valve 15, three-way valve 26 and three-way valve 37 are all provided with switching mechanisms for driving them to perform guide switching.

[0022] Furthermore, the switching mechanism includes a motor 17 and a reducer 18, the output shaft of the motor 17 is fixedly connected to the input shaft of the reducer 18, the output shaft of the reducer 18 is fixedly connected to the valve core (also called a handle or knob) of the three-way valve 1 5 or the three-way valve 2 6 or the three-way valve 3 7, and the reducer 18 is provided with a control mechanism for controlling the start and stop of the motor 17.

[0023] Furthermore, the control mechanism includes a cam 19 fixedly connected to the output shaft of the reducer 18. Two sensors 20 are installed on the reducer 18, and the sensors are proximity sensors.

[0024] Furthermore, the control mechanism also includes a PLC controller (not shown in the figure) and two temperature sensors 21. The two temperature sensors 21 are respectively installed in the inner cavity of the kettle body 1 and the hot water cavity 10. The PLC controller is electrically connected to the temperature sensor 20, the motor 17, the heater 13, the sensor 20, the water pump 1 8 and the water pump 2 9.

[0025] Furthermore, the flow groove 15 is arranged in a spiral shape.

[0026] Working principle: When it is necessary to carry out acrylic resin polymerization reaction processing, pour the raw materials into the kettle body 1, then connect the feed pipe 14 to the external water supply equipment, and then heat the water in the hot water chamber 10 through the heater 13, and then input the heated hot water into the flow groove 15 through the water pump 18, the three-way valve 15 and the three-way valve 2. After the hot water passes through the flow groove 15, it will return to the hot water chamber 10 through the three-way valve 3 7 for recycling. In the process of the hot water passing through the flow groove 15, it will exchange heat with the kettle body 1, thereby achieving the effect of increasing the temperature of the inner cavity of the kettle body 1 to assist the polymerization reaction.

[0027] During the polymerization reaction, the stirring paddle will stir the raw materials through the driving mechanism to promote the polymerization reaction. The temperature sensor will constantly detect the temperature in the kettle body 1. When the raw materials release a large amount of heat energy in the polymerization reaction and the temperature in the inner cavity of the kettle body 1 exceeds the preset value, the PLC controller will control the motor 17 corresponding to the three-way valve 15 and the three-way valve 37 to operate. After the speed of the reducer 18 is reduced, the output shaft of the reducer 18 will drive the valve core to rotate, and then switch the three-way valve 15 to the water pump 18 to connect with the cold water chamber 12, and switch the three-way valve 37 to the flow groove 15 to connect with the spare chamber 11. The PLC controller detects the position of the cam 19 through the sensor 20 to determine whether the three-way valve has been switched into place, and then turns off the motor 17 in time to make the switching of the three-way valve more accurate, and also prevent the valve core from rotating excessively and damaging the limit structure in the three-way valve.

[0028] After the three-way valve is switched, cold water will enter the cold water chamber 12 through the feed pipe 14, and then flow into the standby chamber 11 through the three-way valve 15, the flow groove 15, and the three-way valve 37 in sequence. The cold water will absorb the heat energy in the kettle body 1 during the flow process to prevent the reaction system from being overheated and causing the reaction to be out of control or even a safety accident. After the polymerization reaction is completed, the raw materials are discharged, and then the three-way valve 15 is switched to the water pump 18 to connect with the hot water chamber 10, and the three-way valve 26 is switched to the water pump 18 to connect with the sprinkler 16, and then the hot water in the hot water chamber 10 is pumped out through the water pump 18, and then the hot water is used to flush the inner cavity of the kettle body 1 through the sprinkler 16 to prevent the residual unreacted monomers, the formed resins and other possible by-products in the reactor from forming a crust in the kettle body, affecting the quality and purity of the next batch of products. After the cleaning is completed, the warm water in the standby chamber 11 is sent to the hot water chamber 10 for replenishment through the water pump 29, which can reduce the energy consumption during heating.

[0029] With such an arrangement, the stirring kettle can quickly cool down the raw materials in the kettle body 1 and can also utilize the excess heat energy in the kettle body 1 to reduce energy consumption during subsequent heating.

[0030] The above is only a preferred embodiment of the present invention. The protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A stirred tank for producing acrylic resin, comprising a tank body (1), wherein the tank body (1) is provided with a stirring paddle (2) and a driving mechanism (3) for driving the stirring paddle (2) to rotate, wherein: An energy collecting tank (4), a three-way valve 1 (5), a three-way valve 2 (6), a three-way valve 3 (7), a water pump 1 (8) and a water pump 2 (9) are arranged beside the kettle body (1); a hot water chamber (10), a standby chamber (11) and a cold water chamber (12) are arranged in the energy collecting tank; a heater (13) is arranged in the hot water chamber (10); a feed pipe (14) is arranged on the cold water chamber (12); a flow groove (15) for supplying hot and cold water and a plurality of sprinkler heads (16) are arranged in the kettle body (1); the three valve ports of the three-way valve 1 (5) are respectively connected to the water inlet of the water pump 1 (8), the hot water chamber (11) and the cold water chamber (12); 10) and the cold water chamber (12), the three valve ports of the three-way valve two (6) are respectively fixedly connected to one end of the flow groove (15), the sprinkler head (16) and the water outlet of the water pump one (8), the three valve ports of the three-way valve three (7) are respectively fixedly connected to the hot water chamber (10), the standby chamber (11) and the other end of the flow groove (15), the water inlet and the water outlet of the water pump two (9) are respectively fixedly connected to the standby chamber (11) and the hot water chamber (10), and the three-way valve one (5), the three-way valve two (6) and the three-way valve three (7) are all provided with a switching mechanism for driving them to switch the guide.

2. The acrylic resin production stirred tank according to claim 1, characterized in that: The switching mechanism comprises a motor (17) and a reducer (18); the output shaft of the motor (17) is fixedly connected to the input shaft of the reducer (18); the output shaft of the reducer (18) is fixedly connected to the valve core of the three-way valve one (5) or the three-way valve two (6) or the three-way valve three (7); and the reducer (18) is provided with a control mechanism for controlling the start and stop of the motor (17).

3. The acrylic resin production stirred tank according to claim 2, characterized in that: The control mechanism comprises a cam (19) fixedly connected to an output shaft of a reducer (18), and two sensors (20) are arranged on the reducer (18).

4. The acrylic resin production stirred tank according to claim 3, characterized in that: The control mechanism also includes a PLC controller and two temperature sensors (21). The two temperature sensors (21) are respectively arranged in the inner cavity of the kettle body (1) and the hot water cavity (10). The PLC controller is respectively electrically connected to the temperature sensor (21), the motor (17), the heater (13), the sensor (20), the water pump 1 (8) and the water pump 2 (9).

5. The acrylic resin production stirred tank according to claim 1, characterized in that: The flow groove (15) is arranged in a spiral shape.

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