Temperature control system for wet type granulator

Abstract

The invention relates to the technical field of temperature control systems for wet type granulators, in particular to a temperature control system for a wet type granulator, which comprises a material cylinder, a hot water tank, a cold water tank, a cold and hot water inlet switching valve and a temperature control device, the jacket cavity is provided with a first liquid inlet and a first liquid outlet, the temperature control equipment comprises a power supply, a main processor, a plurality of temperature sensors, a heating control module and display equipment, and the main processor is electrically connected with the power supply, the plurality of temperature sensors, the cold and hot water inlet switching valve, the heating control module and the display equipment; the sensors are arranged in different devices, the temperatures of the cold and hot water tank, the jacket cavity and the granulation cavity are detected in real time, and through feedback adjustment of the main processor, the main processor controls the cold and hot water inlet switching valve to precisely regulate and control the temperature of materials in the granulation cavity.

Description

Technical Field

[0001] The present application relates to the technical field of granulation, and in particular to a temperature control system for a wet granulator. Background Art

[0002] Wet granulator is a kind of equipment used to make powder into granules, mainly used in pharmaceutical, food, feed and ceramic industries.

[0003] The publication date is October 22, 2024. A high-reliability wet granulator with publication number CN118807599A includes a main body, a stirring center body is arranged in the main body, a sealing rubber ring is sleeved on the lower end of the stirring center body, a discharge pipe is rotatably connected to the discharge port of the main body, a support assembly is fixedly connected to the surface of the main body, a shell is arranged on the support assembly, a dredging plate is arranged in the shell, a dredging block is arranged in the discharge pipe, and a dredging component is also included. The dredging component is arranged in the shell. Through the setting of the dredging component, the dredging plate can perform a circular revolution and radially reciprocate along the direction of the discharge pipe. Auxiliary components are also included to enable the dredging block to reciprocate along the axial direction of the discharge pipe. An adjusting component is also included in transmission connection with the dredging component. Through the mutual cooperation between the above structures, the continuity and smoothness of the granulation discharge process are ensured, and the reliability of the equipment is improved.

[0004] However, in the prior art, when the wet machine performs hot-melt granulation and drying of temperature-sensitive materials, the temperature information obtained by the wet machine is relatively single, and it is impossible to accurately detect and control the temperature of the material, which will cause fluctuations in product quality and thus affect the quality of the product. For this reason, we designed a temperature control system for the wet granulator. Summary of the invention

[0005] In order to solve the technical problem that the temperature information obtained by the wet granulator is relatively single and the material temperature cannot be accurately detected and controlled, the present invention provides a temperature control system for a wet granulator.

[0006] The embodiment of the present application provides a temperature control system for a wet granulator, including a material cylinder, a hot water tank, a cold water tank, a hot and cold water inlet switching valve, and a temperature control device. A jacket is provided in the material cylinder, and the jacket divides the interior of the material cylinder into a granulation chamber and a jacket chamber. The jacket chamber is provided with a first liquid inlet and a first liquid outlet. The temperature control device includes a power supply, a main processor, a plurality of temperature sensors, a heating control module, and a display device. The main processor is electrically connected to the power supply, the plurality of temperature sensors, the hot and cold water inlet switching valve, the heating control module, and the display device, respectively. The plurality of temperature sensors are electrically connected to the heating control module, and the main processor is used to receive an input voltage from a power supply to power the plurality of temperature sensors, the heating control module, and the display module.

[0007] The above technical solutions in the embodiments of the present application have at least the following technical effects:

[0008] 1. By setting sensors inside multiple different devices, real-time detection of the temperatures of the hot and cold water tanks, jacket chamber, and granulation chamber can be achieved. Based on the relative relationship between the three, the main processor controls the hot and cold water inlet switching valve to switch the water inlet pipe and the hot water outlet of the hot water tank and the cold water outlet of the cold water tank to accurately control the material temperature in the granulation chamber. The temperature information feedback from each temperature sensor enables the processor to obtain more accurate material temperature. The heating control module heats the water in the hot water pipe to a suitable temperature and displays it through a display device to avoid inaccurate temperature control caused by inconsistency between the liquid temperature in the water inlet pipe and the material temperature or other factors, thereby affecting product quality.

[0009] 2. By setting a stirring mechanism, the pelletizer and the stirring disk rotate, and the material inside the material cylinder generates a vortex, which drives the material inside the material cylinder to roll up and down. At the same time, the pelletizer will fully break up the tumbling material mass and cut it into uniform and dense particles, so that the material inside the material cylinder is fully integrated and evenly integrated, thereby improving the quality of the product. The blade edge of the pelletizer is set to be an arc shape concave toward the back of the blade, which can reduce the width of the pelletizer blade part and reduce the force area of ​​the blade part, and can effectively reduce the friction between the pelletizing blade and the material. At the same time, the end of the concave arc blade edge is tilted toward the rotation direction of the pelletizer. Under the action of the centrifugal force generated by the rotating cutting on the material, the blade end of the pelletizer can continue to cut and granulate the material, which can effectively improve the cutting efficiency of the cutting and drawing knife.

[0010] In some embodiments, multiple temperature sensors are respectively installed in the jacket chamber, granulation chamber, hot water tank and cold water tank, and the main processor receives temperature information from multiple temperature sensors and feeds it back to the display device and controls the hot and cold water inlet switching valve.

[0011] In some embodiments, a water inlet pipe is provided at the connection of the first liquid inlet, and the other end of the water inlet pipe is switchedly connected to the hot and cold water inlet switching valve and the hot water outlet of the hot water tank and the cold water outlet of the cold water tank.

[0012] In some embodiments, a water outlet pipe is provided at the connection of the first liquid outlet, and the other end of the water outlet pipe is switched and connected to the hot water circulation inlet of the hot water tank and the cold water circulation inlet of the cold water tank through the hot and cold water outlet switching valve.

[0013] In some embodiments, the water inlet pipe is connected to a jacketed water inlet valve, an adjusting knob is installed between the jacketed water inlet valve and the hot and cold water inlet switching valve, and the temperature sensor located in the granulation chamber is connected to the material cylinder, and its detection end is located in the granulation chamber.

[0014] In some embodiments, a stirring mechanism is also provided inside the material cylinder, and the stirring mechanism includes a driving motor, a stirring rod, a pelletizing knife and a stirring disk. The driving motor is fixedly installed on both sides of the outer wall of the material cylinder, the stirring rod is fixedly connected to the output end of the driving motor, and the stirring rod passes through the outer walls on both sides of the material cylinder and is located inside the material cylinder. The pelletizing knife is evenly arranged on the periphery of the stirring rod, and the stirring disk is rotatably connected to the bottom of the material cylinder.

[0015] In some embodiments, the temperature sensor located in the jacket cavity is connected to the water inlet pipe at a position close to the first liquid inlet, and its detection end is located in the water inlet pipe.

[0016] In some embodiments, the hot water tank has a first normal temperature liquid inlet, and the cold water tank has a second normal temperature liquid inlet, a drain port, and an overflow port.

[0017] In some embodiments, a stirring head is also provided at the bottom of the material cylinder, the stirring plate is fixedly connected to the outer periphery of the stirring head, the angle of the pelletizer is greater than 90 degrees and less than 180 degrees, and the cutting edge of the pelletizer is in the shape of an arc concave toward the back of the blade, and the driving motor and the stirring head are electrically connected to the main processor. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative labor.

[0019] Figure 1 A front view of a wet granulator device provided in an embodiment of the present application;

[0020] Figure 2 A schematic diagram of the structure of a temperature control system for a wet granulator provided in an embodiment of the present application.

[0021] Figure 3 A schematic diagram of the cylinder structure of a temperature control system for a wet granulator provided in an embodiment of the present application.

[0022] Among them, the figure marks in the figure are: 1. material cylinder; 2. hot water tank; 3. cold water tank; 4. hot and cold water inlet switching valve; 5. temperature control device; 51. power supply; 52. main processor; 53. temperature sensor; 54. heating control module; 55. display device; 6. jacket; 7. granulation chamber; 8. jacket chamber; 9. first liquid inlet; 10. first liquid outlet; 11. water inlet pipe; 12. water outlet pipe; 13. hot water circulation inlet; 14. cold water circulation inlet; 15. jacket inlet valve; 16. adjustment button; 17. first normal temperature liquid inlet; 18. second normal temperature liquid inlet; 19. drain outlet; 20. overflow outlet; 21. cold water outlet; 22. hot water outlet; 23. hot and cold water outlet switching valve; 24. stirring mechanism; 241. drive motor; 242. stirring rod; 243. pelletizing knife; 244. stirring disk; 25. stirring head. DETAILED DESCRIPTION

[0023] In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0024] In order to improve the problem that the temperature information obtained by the wet machine is relatively single and the material temperature cannot be accurately detected and controlled, which will cause fluctuations in product quality and thus affect the quality of the product, the embodiment of the present application provides the following solution.

[0025] See also Figures 1 to 3 A temperature control system for a wet granulator includes a material cylinder 1, a hot water tank 2, a cold water tank 3, a hot and cold water inlet switching valve 4 and a temperature control device 5. The material cylinder 1 is provided with a jacket 6, and the jacket 6 divides the interior of the material cylinder 1 into a granulation chamber 7 and a jacket chamber 8. The jacket chamber 8 is provided with a first liquid inlet 9 and a first liquid outlet 10. The temperature control device 5 includes a power supply 51, a main processor 52, a plurality of temperature sensors 53, a heating control module 54 and a display device 55. The main processor 52 is electrically connected to the power supply 51, the plurality of temperature sensors 53, the hot and cold water inlet switching valve 4, the heating control module 54 and the display device 55, respectively. The plurality of temperature sensors 53 are electrically connected to the heating control module 54, and the main processor 52 is used to receive an input voltage from the power supply 51 to power the plurality of temperature sensors 53, the heating control module 54 and the display module.

[0026] The multiple temperature sensors 53 are respectively installed in the jacket chamber 8, the granulation chamber 7, the hot water tank 2 and the cold water tank 3, and the main processor 52 receives the temperature information of the multiple temperature sensors 53 and feeds it back to the display device 55 to control the hot and cold water inlet switching valve 4.

[0027] In this way, before using the wet machine for hot melt granulation, the power supply 51 will output a voltage to the main processor 52, and the main processor 52 will reduce the voltage output by the power supply 51 to a preset voltage value, and then supply power to the water inlet switching valve, the heating control module 54, the display device 55, and the temperature sensor 53 inside the jacket chamber 8, the granulation chamber 7, the hot water tank 2 and the cold water tank 3. At this time, the temperature sensor 53 inside each device will detect and measure the temperature inside the target device in real time, and merge the temperature information of each target device into the main processor 52. After receiving the temperature information, the main processor 52 transmits the received real-time temperature information to the display device 55 and the display device 55 reacts in real time. At the same time, the main processor 52 will send a heating instruction to the heating control module 54. At this time, the heating control module 54 will heat the water inside the hot water tank 2 to a suitable temperature. Then, the main processor 52 will send an on-off instruction to the hot and cold water inlet switching valve 4 according to the temperature information reflected by each temperature sensor 53, so that the liquid in the hot water tank 2 and the cold water tank 3 heats the granulation chamber 7 to adjust the temperature of the material.

[0028] The effect of such arrangement is that by arranging sensors inside a plurality of different devices, real-time detection of the temperatures of the cold water tank 3, the hot water tank 2, the jacket chamber 8, and the granulation chamber 7 can be achieved. Based on the relative relationship between the three, after feedback adjustment by the main processor 52, the main processor 52 controls the hot and cold water inlet switching valve 4, switches the water inlet pipe 11 and the hot water outlet 22 of the hot water tank 2 and the cold water outlet 21 of the cold water tank 3, so as to accurately control the material temperature in the granulation chamber 7. The temperature information feedback from each temperature sensor 53 can enable the processor to obtain a more accurate material temperature, and the heating control module 54 is controlled to heat the water in the hot water pipe to a suitable temperature and display it through the display device 55, so as to avoid the inconsistency between the liquid temperature in the water inlet pipe 11 and the material temperature or inaccurate temperature control caused by other factors, thereby affecting the product quality.

[0029] See also Figure 1 to Figure 2 A water inlet pipe 11 is provided at the connection of the first liquid inlet 9, and the other end of the water inlet pipe 11 is switched and connected with the hot water outlet 22 of the hot water tank 2 and the cold water outlet 21 of the cold water tank 3 through the hot and cold water inlet switching valve 4. A water outlet pipe 12 is provided at the connection of the first liquid outlet 10, and the other end of the water outlet pipe 12 is switched and connected with the hot water circulation inlet 13 of the hot water tank 2 and the cold water circulation inlet 14 of the cold water tank 3 through the hot and cold water outlet switching valve 23.

[0030] With such arrangement, when the material inside the material cylinder 1 is adjusted to a suitable temperature, the main processor 52 will receive the information fed back by the temperature sensor 53 inside the cold water tank 3 and the hot water tank 2, and perform constant temperature regulation on the temperature of the water inside the cold water tank 3 and the hot water tank 2. The main processor 52 sends a heating instruction to the heating control module 54 to perform secondary heating on the hot water inside the hot water tank 2, so that the temperature of the hot water inside the hot water tank 2 is kept constant after mixing with the cold water inside the cold water tank 3, so that they can be directly mixed and used next time granulation is performed.

[0031] The effect of this arrangement is that the main processor 52 will control the connection and disconnection of the hot and cold water outlets and the hot water circulation inlet 13 of the hot water tank 2 and the cold water circulation inlet 14 of the cold water tank 3 according to the information fed back by the temperature sensors 53 inside the cold water tank 3 and the hot water tank 2, thereby achieving efficient liquid circulation, reducing energy consumption, and facilitating improving the efficiency of material temperature control.

[0032] See also Figure 1 Optionally, the temperature sensor 53 located in the granulation chamber 7 is connected to the material cylinder 1, and its detection end is located in the granulation chamber 7. The temperature sensor 53 located in the jacket chamber 8 is connected to the water inlet pipe 11 at a position close to the first liquid inlet 9, and its detection end is located in the water inlet pipe 11.

[0033] With such arrangement, the detection end of the jacket 6 liquid temperature sensor 53 is located in the water inlet pipe 11 near the first liquid inlet 9, and compared with directly detecting the temperature in the jacket cavity 8, the overall temperature of the system can be measured more comprehensively; and the detection end of the temperature sensor 53 in the granulating cavity 7 is located in the granulating cavity 7, and compared with directly detecting the temperature of the material in the granulating cavity 7, the main processor 52 can more accurately control the temperature of the material inside the granulating cavity 7, thereby reducing fluctuations in product quality.

[0034] See also Figure 1 Optionally, the water inlet pipe 11 is connected to a jacketed water inlet valve 15 , and an adjusting button 16 is installed between the jacketed water inlet valve 15 and the hot and cold water inlet switching valve 4 .

[0035] In this way, the jacketed water inlet valve 15 can control the on-off of the water inlet pipe 11, and the pressure of the water inlet pipe 11 can be regulated by the regulating button 16. At the same time, a pressure gauge can be provided to accurately measure the pressure of the water inlet pipe 11 and make the pressure regulation of the regulating button 16 more accurate.

[0036] Optionally, the temperature sensor 53 can be an NTC negative temperature coefficient temperature sensor 53 or a thermocouple temperature sensor 53, etc., wherein the NTC negative temperature coefficient temperature sensor 53 is made of metal oxides such as manganese, cobalt, nickel and copper as main materials, and the original materials have semiconductor properties. When the temperature is low, the number of carriers in the material is small, so its resistance value is relatively high. As the temperature increases, the number of carriers increases, so the resistance value decreases. Therefore, temperature measurement can be performed based on the theoretical relationship between resistance value and temperature change. The thermocouple temperature sensor 53 welds two conductors or semiconductors A and B of different materials to form a closed loop. When there is a temperature difference between the two connection points of A and B, an electromotive force is generated between the two, thereby forming a current of a certain size in the loop. This phenomenon is called the thermoelectric effect, and the temperature sensor 53 thermocouple works by utilizing this effect.

[0037] Optionally, another function of the main processor 52 is to step down the voltage of the power supply 51. The output voltage after stepping down can meet the power demand of the temperature control device 5. The preset voltage value can be set according to actual conditions.

[0038] Optionally, in this embodiment, the main processor 52 specifically adopts a PLC control element. The temperature sensor 53 in the cold water tank 3 and the temperature sensor 53 in the hot water tank 2 are both built-in components, which are not shown in the accompanying drawings. Water is mostly used for heating and cooling liquids. If there are higher temperature requirements, it can also be replaced with heat transfer oil.

[0039] See also Figure 1 The material cylinder 1 is also provided with a stirring mechanism 24, and the stirring mechanism 24 includes a driving motor 241, a stirring rod 242, a pelletizing knife 243 and a stirring disk 244. The driving motor 241 is fixedly mounted on both sides of the outer wall of the material cylinder 1, and the stirring rod 242 is fixedly connected to the output end of the driving motor 241, and the stirring rod 242 penetrates the outer walls of both sides of the material cylinder 1 and is located inside the material cylinder 1. The pelletizing knife 243 is evenly arranged on the periphery of the stirring rod 242, and the stirring disk 244 is rotatably connected to the bottom of the material cylinder 1;

[0040] A stirring head 25 is also provided at the bottom of the material cylinder 1 , and the stirring disk 244 is fixedly connected to the outer periphery of the stirring head 25 . The driving motor 241 and the stirring head 25 are electrically connected to the main processor 52 .

[0041] With such a configuration, after the temperature of the material inside the material cylinder 1 is adjusted to a suitable temperature by the main processor 52, the main processor 52 will send a start instruction to the drive motor 241 and the stirring head 25, and the drive motor 241 and the stirring head 25 will start to rotate after receiving the instruction. At this time, the output end of the drive motor 241 will drive the stirring rod 242 to rotate, thereby driving the pelletizer 243 on the stirring rod 242 to rotate with the rotation, and start stirring and cutting the material inside the material cylinder 1. At the same time, cooperate with the stirring head 25 to drive the stirring plate 244 at the bottom of the material cylinder 1 to rotate, so that the material inside the material cylinder 1 is cut and stirred and rolled up and down at the same time, so as to stir the material inside the material cylinder 1 to the maximum extent. When the material inside the material cylinder 1 is stirred and mixed evenly, the main processor 52 will send instructions to the drive motor 241 and the stirring head 25 again to stop the drive motor 241 and the stirring head 25 from rotating.

[0042] The effect of such a configuration is that, by providing the stirring mechanism 24, the pelletizer 243 and the stirring disk 244 are rotated, so that the material inside the material cylinder 1 generates a vortex, which drives the material inside the material cylinder 1 to roll up and down. At the same time, the pelletizer 243 will fully break up and cut the tumbling material mass into uniform and dense particles, so that the material inside the material cylinder 1 is fully integrated and evenly integrated, thereby improving the quality of the product.

[0043] Optionally, the included angle of the pelletizer 243 is greater than 90 degrees and less than 180 degrees, and the cutting edge of the pelletizer 243 is in an arc shape that is concave toward the blade back.

[0044] In this way, the blade edge of the pelletizer 243 is set to be an arc shape concave toward the back of the blade, which can reduce the width of the blade portion of the pelletizer 243, thereby reducing the force-bearing area of ​​the blade portion, and effectively reduce the friction generated between the pelletizer 243 and the material. At the same time, the end of the concave arc-shaped blade edge is tilted toward the rotation direction of the pelletizer 243. Under the action of the centrifugal force generated by the rotating cutting on the material, the blade end of the pelletizer 243 can continue to cut and pelletize the material, which can effectively improve the cutting efficiency of the cutting knife.

[0045] From the above, we can see that the working principle of this application is as follows:

[0046] Before using the wet machine for hot melt granulation, the power supply 51 will output voltage to the main processor 52, and the main processor 52 will reduce the voltage output by the power supply 51 to a preset voltage value, and then supply power to the water inlet switching valve, the heating control module 54, the display device 55, and the jacket chamber 8, the granulation chamber 7, the hot water tank 2, and the cold water tank 3. The temperature sensor 53 inside each device will perform real-time detection and measurement of the temperature inside the target device, and the temperature information of each target device will be integrated into the main processor 52. After receiving the temperature information, the main processor 52 will transmit the received real-time temperature information to the display device 55, and the display device 55 will react in real time. At the same time, the main processor 52 will send a heating instruction to the heating control module 54. At this time, the heating control module 54 will heat the water inside the hot water tank 2 to a suitable temperature. Then, the main processor 52 will send an on-off instruction to the hot and cold water inlet switching valve 4 according to the temperature information reflected by each temperature sensor 53, so that the liquid in the hot water tank 2 and the cold water tank 3 heats the granulation chamber 7 to adjust the temperature of the material;

[0047] Then, the main processor 52 will control the connection and disconnection of the hot and cold water outlets and the hot water circulation inlet 13 of the hot water tank 2 and the cold water circulation inlet 14 of the cold water tank 3 according to the information fed back by the temperature sensors 53 inside the cold water tank 3 and the hot water tank 2, thereby realizing efficient liquid circulation, reducing energy consumption, and being conducive to improving the efficiency of material temperature control;

[0048] When the material inside the material cylinder 1 is temperature-adjusted to a suitable temperature by the main processor 52, the main processor 52 will send a start command to the drive motor 241 and the stirring head 25, and the drive motor 241 and the stirring head 25 will start to rotate after receiving the command. At this time, the output end of the drive motor 241 will drive the stirring rod 242 to rotate, thereby driving the pelletizer 243 on the stirring rod 242 to rotate with the rotation, and start stirring and cutting the material inside the material cylinder 1. At the same time, the stirring head 25 drives the stirring plate 244 at the bottom of the material cylinder 1 to rotate, so that the material inside the material cylinder 1 is cut and stirred up and down at the same time, so as to stir the material inside the material cylinder 1 to the maximum extent. When the material inside the material cylinder 1 is stirred and mixed evenly, the main processor 52 will send a command to the drive motor 241 and the stirring head 25 again to stop the drive motor 241 and the stirring head 25 from rotating.

[0049] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A temperature control system for a wet granulator, characterized in that: The invention comprises a material cylinder (1), a hot water tank (2), a cold water tank (3), a hot and cold water inlet switching valve (4), a hot and cold water outlet switching valve (23) and a temperature control device (5); the material cylinder (1) is provided with a jacket (6); the jacket (6) divides the interior of the material cylinder (1) into a granulation chamber (7) and a jacket chamber (8); the jacket chamber (8) is provided with a first liquid inlet (9) and a first liquid outlet (10); the temperature control device (5) comprises a power supply (51), a main processor (52), a plurality of temperature sensors (53), a temperature control device (54), a temperature control device (55), a temperature control device (56), a temperature control device (57), a temperature control device (58), a temperature control device (59), a temperature control device (61), a temperature control device (62), a temperature control device (63), a temperature control device (64), a temperature control device (65), a temperature control device (66), a temperature control device (67), a temperature control device (68), a temperature control device (69), a temperature control device (70), a temperature control device (71), a temperature control device (72), a temperature control device (73), a temperature control device (74), a temperature control device (75), a temperature control device (76), a temperature control device (77), a temperature control device (78), a temperature control device (79), a temperature control device (81), a temperature control device (71), a temperature control device (72), a temperature control device (73), a temperature control device (74), a temperature control device (75), a temperature control device (76), a temperature control device (77), a temperature control device (78), a temperature control device (79), a temperature control device (89), a temperature control device (81), a temperature control device (79), a temperature control device (8 A heat control module (54) and a display device (55), wherein the main processor (52) is electrically connected to a power supply (51), a plurality of temperature sensors (53), a hot and cold water inlet switching valve (4), a heating control module (54) and a display device (55), respectively; the plurality of temperature sensors (53) are electrically connected to the heating control module (54), and the main processor (52) is used to receive an input voltage from the power supply (51) to supply power to the plurality of temperature sensors (53), the heating control module (54) and the display module.

2. A temperature control system for a wet granulator according to claim 1, characterized in that: The plurality of temperature sensors (53) are respectively installed inside the jacket chamber (8), the granulation chamber (7), the hot water tank (2) and the cold water tank (3), and the main processor (52) receives temperature information from the plurality of temperature sensors (53), feeds it back to the display device (55) and controls the hot and cold water inlet switching valve (4).

3. A temperature control system for a wet granulator according to claim 1, characterized in that: A water inlet pipe (11) is provided at the connection point of the first liquid inlet (9), and the other end of the water inlet pipe (11) is switchably connected to the hot and cold water inlet switching valve (4) and the hot water outlet (22) of the hot water tank (2) and the cold water outlet (21) of the cold water tank (3).

4. A temperature control system for a wet granulator according to claim 1, characterized in that: A water outlet pipe (12) is provided at the connection point of the first liquid outlet (10), and the other end of the water outlet pipe (12) is switched and connected to the hot water circulation inlet (13) of the hot water tank (2) and the cold water circulation inlet (14) of the cold water tank (3) through the hot and cold water outlet switching valve (23).

5. A temperature control system for a wet granulator according to claim 3, characterized in that: The water inlet pipe (11) is connected to a jacketed water inlet valve (15), and an adjusting knob (16) is installed between the jacketed water inlet valve (15) and the hot and cold water inlet switching valve (4).

6. A temperature control system for a wet granulator according to claim 2, characterized in that: The temperature sensor (53) located in the granulation chamber (7) is connected to the material cylinder (1), and its detection end is located in the granulation chamber (7). The temperature sensor (53) located in the jacket chamber (8) is connected to the water inlet pipe (11) at a position close to the first liquid inlet (9), and its detection end is located in the water inlet pipe (11).

7. A temperature control system for a wet granulator according to claim 4, characterized in that: The hot water tank (2) has a first normal-temperature liquid inlet (17), and the cold water tank (3) has a second normal-temperature liquid inlet (18), a drain port (19) and an overflow port (20).

8. A temperature control system for a wet granulator according to claim 1, characterized in that: A stirring mechanism (24) is also provided inside the material cylinder (1), and the stirring mechanism (24) comprises a driving motor (241), a stirring rod (242), a pelletizing knife (243) and a stirring disk (244); the driving motor (241) is fixedly mounted on both sides of the outer wall of the material cylinder (1); the stirring rod (242) is fixedly connected to the output end of the driving motor (241), and the stirring rod (242) penetrates the outer walls on both sides of the material cylinder (1) and is located inside the material cylinder (1); the pelletizing knife (243) is evenly arranged on the outer periphery of the stirring rod (242); and the stirring disk (244) is rotatably connected to the bottom of the material cylinder (1).

9. A temperature control system for a wet granulator according to claim 8, characterized in that: A stirring head (25) is also provided at the bottom of the material cylinder (1); the stirring disk (244) is fixedly connected to the outer periphery of the stirring head (25); the included angle of the pelletizer (243) is greater than 90 degrees and less than 180 degrees, and the cutting edge of the pelletizer (243) is in the shape of an arc concave toward the back of the blade; the driving motor (241) and the stirring head (25) are electrically connected to the main processor (52).

Images