Feeding system

Abstract

The utility model relates to the technical field of chemical production equipment, and provides a feeding system aiming at the problems of an existing feeding system, which can ensure constant-temperature feeding of water in the feeding system and constant-temperature output of mixed materials after stirring. The feeding system comprises a stirring chamber, a water supply unit and a heat exchange unit. Wherein the stirring chamber is used for containing and stirring water and materials, a water supply inlet and a mixed material outlet are formed in the stirring chamber, and the mixed material outlet is used for allowing mixed materials formed after the materials and the water are stirred to flow out of the stirring chamber; the water supply unit communicates with the water supply inlet; a heat exchange inlet of the heat exchange unit is communicated with the water supply unit and the mixed material outlet, and a heat exchange outlet of the heat exchange unit is communicated with the external discharge port or the water supply inlet in a switchable manner so as to control the temperature of water entering the stirring chamber and the temperature of the mixed material flowing out of the mixed material outlet.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical production equipment, in particular to a feeding system. Background Art

[0002] In the industrial production process, feeding is an important link in the middle. The traditional feeding method is usually completed by manual operation, which has many disadvantages, such as low efficiency, low precision, and easy errors. With the development of science and technology, automation technology has gradually been applied to feeding systems. The automated feeding system can greatly improve production efficiency, reduce manual operations, improve production accuracy, and reduce production costs. At the same time, the automated feeding system can also reduce the impact of human factors on the production process and improve the stability and reliability of the production process.

[0003] For example, patent CN116173836A discloses a safe feeding system and feeding method with a sealed structure for chemical industry. The feeding system has a quantitative feeding device, which can be used for quantitative feeding. Patent CN214438963U discloses a metering feeding device for iron phosphate production, which can realize automatic metering feeding of ferrous sulfate aqueous solution and ammonium acid mixed solution. However, for situations where mixing needs to be performed at a specified temperature or the mixed material needs to be discharged at a specified temperature, it is difficult for the existing feeding system to realize automatic constant temperature control. Utility Model Content

[0004] In view of the above problems of the existing feeding system, the utility model provides a feeding system and a feeding method, which can ensure the constant temperature entry of water in the feeding system and the constant temperature output of the mixed material after stirring.

[0005] On one hand, the utility model provides a feeding system, which includes a stirring chamber, a water supply unit and a heat exchange unit. The stirring chamber is used to contain water and materials and stir the mixed water and materials. The stirring chamber is provided with a water supply inlet and a mixed material outlet. The mixed material outlet is used to allow the mixed material formed after the materials and water are stirred to flow out of the stirring chamber; the water supply unit is connected to the water supply inlet; the heat exchange unit, the heat exchange inlet of the heat exchange unit is connected to the water supply unit and the mixed material outlet, and the heat exchange outlet of the heat exchange unit can be switchably connected to an external discharge port or a water supply inlet to control the water temperature entering the stirring chamber and the temperature of the mixed material flowing out of the mixed material outlet.

[0006] According to the technical solution of the utility model, the heat exchange inlet of the heat exchange unit is connected with the water supply unit and the mixed material outlet, and the heat exchange outlet of the heat exchange unit can be switchably connected with the external discharge port or the water supply inlet. The aqueous solution supplied by the water supply unit can flow through the heat exchange unit and then enter the stirring chamber from the water supply inlet, so that water and materials of a specified temperature can be mixed and stirred in the stirring chamber, and the mixed material flowing out of the mixed material outlet of the stirring chamber can also flow through the heat exchange unit and then flow out from the external discharge port, so that the temperature of the mixed material flowing out of the feeding system can be controlled. The feeding system provided in the present application can achieve constant temperature control of the input aqueous solution and constant temperature control of the output mixed material through a simple heat exchange device and pipeline switching setting.

[0007] As a more preferred technical solution of the utility model, the feeding system also includes: a medium storage tank, and the heat exchange unit is built with a heat exchange pipeline and a medium pipeline for heat exchange with each other, and the medium pipeline is connected to the medium storage tank.

[0008] According to this preferred technical solution, the medium in the medium storage tank can flow into the medium pipeline of the heat exchange unit and exchange heat with the heat exchange pipeline in the medium pipeline, so that the temperature of the aqueous solution or mixed material in the heat exchange pipeline can be controlled by adjusting the temperature of the medium.

[0009] As a more preferred technical solution of the utility model, the medium storage tank includes at least a first medium storage tank and a second medium storage tank, the medium pipeline of the heat exchange unit can be switchably connected to the first medium storage tank and / or the second medium storage tank, and the medium temperature of the first medium storage tank is higher than the medium temperature of the second medium storage tank.

[0010] According to the preferred technical solution, by connecting the first medium storage tank and the second medium storage tank with different internal medium temperatures to the medium pipeline, the medium temperature in the medium pipeline can be adjusted by adjusting the ratio of the medium flow rates from the first medium storage tank to the second medium storage tank flowing into the medium pipeline, so that the heat exchange unit can control the temperature of water and mixed medium within a range and the temperature control is more accurate.

[0011] As a more preferred technical solution of the utility model, the feeding system also includes a proportional control device. A temperature sensor is provided at the heat exchange outlet of the heat exchange unit. The proportional control device is communicatively connected with the temperature sensor to control the flow ratio of the medium flowing out of the first medium storage tank and the second medium storage tank according to the detection result of the temperature sensor.

[0012] According to the preferred technical solution, based on the detection value of the temperature sensor, the proportional control device controls the flow ratio of the medium flowing out of the first medium storage tank and the second medium storage tank, so that the temperature of the water or mixed material at the heat exchange outlet can be adjusted in real time, and the temperature of the water or mixed material after the heat exchange can be kept more accurate. It can also eliminate the influence of external environmental changes on the heat exchange temperature, and keep the temperature of the water or mixed material after the heat exchange more stable.

[0013] As a more preferred technical solution of the utility model, the water supply unit is provided with a first flow meter and a first solenoid valve, and the feeding system also includes: an input flow control device, which is communicatively connected with the first flow meter and the first solenoid valve, and controls the opening of the first solenoid valve according to the detection result of the first flow meter.

[0014] According to the preferred technical solution, the input flow control device controls the opening of the first solenoid valve based on the detection result of the flow meter, and can adjust the real-time flow and cumulative flow of water supplied by the water supply unit in real time, thereby achieving constant temperature and quantitative control of the aqueous solution supplied by the water supply unit at the same time.

[0015] As a more preferred technical solution of the utility model, an acceleration pump is provided at the mixed material outlet of the stirring chamber, and a second flow meter is provided downstream of the acceleration pump. The feeding system also includes: an output control device, which is communicatively connected with the second flow meter and the acceleration pump, and the output control device is used to control the rotation speed of the acceleration pump according to the detection result of the second flow meter.

[0016] According to the preferred technical solution, the input flow control device controls the opening of the first solenoid valve according to the detection result of the flow meter, and can adjust the real-time flow and cumulative flow of water supplied by the water supply unit in real time, thereby achieving constant temperature and quantitative control of the aqueous solution supplied by the water supply unit at the same time. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a simplified structural diagram of a feeding system provided by the first embodiment of the utility model.

[0018] Figure 2 It is a flow chart of the control method of the feeding system provided in the embodiment of the utility model.

[0019] Figure 3 It is a structural schematic diagram of a preferred feeding system provided by an embodiment of the utility model.

[0020] Figure 4 It is a flow chart of a preferred control method of a feeding system provided in the second embodiment of the present utility model.

[0021] Figure 5 This is a flow chart of another control method for a feeding system provided in the second embodiment of the present utility model.

[0022] Reference numerals:

[0023] 1-stirring chamber; 11-water inlet; 12-mixed material outlet; 13-material inlet; 2-feeding unit; 3-water supply unit; 4-heat exchange unit; 41-heat exchange inlet; 42-heat exchange outlet; 43-medium inlet; 44-medium outlet; 51-first valve; 52-second valve; 53-third valve; 54-fourth valve; 6-external discharge outlet; 7-medium storage tank; 71-first medium storage tank; 72-second medium storage tank; 73-proportional control device; 74-temperature sensor; 8-stirring unit;

[0024] 101 - first flow meter; 102 - first solenoid valve; 103 - second flow meter; 105 - acceleration pump; 106 - low liquid level switch; 107 - one-way valve. DETAILED DESCRIPTION

[0025] 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.

[0026] First embodiment

[0027] Figure 1 This is a schematic diagram of the structure of a feeding system provided by the first embodiment of the utility model. Figure 1 As shown, a first embodiment of the present invention provides a feeding system, which includes a stirring chamber 1 , a water supply unit 3 and a heat exchange unit 4 .

[0028] The stirring chamber 1 can be any container with a hollow chamber, which is used to contain water and materials and stir the mixed water and materials. The materials can be dry materials or wet materials. The shape and structure of the outside of the stirring chamber 1 are not limited. For example, the stirring chamber 1 can be the inner cavity of a storage tank of any shape, or it can be the accommodating cavity of an open stirring tank. The stirring chamber 1 has a water inlet 11 and a mixed material outlet 12 for the mixed material to flow out after mixing. Generally speaking, it is preferred to set the water inlet 11 at the top of the stirring chamber 1 and the mixed material outlet 12 at the bottom of the stirring chamber 1, so that gravity can be used to drive water to flow into the hollow chamber, and gravity can also be used to drive the mixed material to flow out of the mixed material outlet 12.

[0029] Preferably, the stirring chamber 1 may also have a material inlet 13, which may be connected to the feeding unit 2. The feeding unit 2 may be a quantitative or constant speed feeder. Through the cooperation of the feeding unit 2 and the water supply unit 3, water and materials may be continuously and automatically supplied to the stirring chamber 1.

[0030] The water supply unit 3 is connected to the water supply inlet 11 of the stirring chamber 1, and is used to supply an aqueous solution into the stirring chamber 1. The water here is not limited to the water supply unit 3 supplying pure water. The situation where the water supply unit 3 passes an aqueous solution dissolved with any component into the stirring chamber 1 also falls within the protection scope of the present utility model. The water supply unit 3 is connected to the water supply inlet 11 of the stirring chamber 1 here, which means that the water supply unit 3 is connected to the water supply inlet 11 after passing through the heat exchange unit 4. Figure 1 A preferred situation is shown in the figure, in which the water supply unit 3 is directly connected to the water supply inlet 11 of the stirring chamber 1 through a separate pipeline, and is also connected to the water supply inlet 11 through the heat exchange unit 4. Therefore, when the water supply unit 3 does not need to control the temperature, the water supply unit 3 can switch to a separate pipeline to directly pass the aqueous solution into the stirring chamber 1 without passing through the heat exchange unit 4, which can be applicable to more application situations and save energy.

[0031] The heat exchange unit 4 can use any type of heat exchanger, and is not limited here. In some embodiments, a more commonly used tubular heat exchanger can be selected, and there can be two pipelines (not shown in the figure) inside the heat exchanger, one is a heat exchange pipeline, and the other is a medium pipeline. The heat exchange pipeline and the medium pipeline are in contact and heat exchange, and the heat exchange inlet 41 of the heat exchange pipeline is connected to the water supply unit 3 and the mixed material outlet 12. Therefore, the aqueous solution supplied by the water supply unit 3 and the mixed material flowing out of the mixed material outlet 12 can enter the heat exchange pipeline through the heat exchange inlet 41, and after heat exchange with the medium pipeline in the heat exchange pipeline, it is discharged from the heat exchange outlet 42 of the heat exchange pipeline, so that the heat exchange unit 4 can control the water temperature entering the stirring chamber 1 and the temperature of the mixed material flowing out of the mixed material outlet 12.

[0032] It should be noted that the connecting pipelines in this embodiment are “switched”, for example, the water supply unit 3 can be switched to be connected to the water supply inlet 11 of the mixing chamber 1 or the heat exchange inlet 41 of the heat exchange unit 4, and the mixed material outlet 12 can be switched to be connected to the external discharge port 6 or the heat exchange inlet 41 of the heat exchange unit 4. This can be achieved by selectively connecting the pipelines, or by setting valves on the two pipelines, such as Figure 3As shown, by setting a first valve 51 between the water supply unit 3 and the stirring chamber 1, and setting a second valve 52 on the bypass connecting the water supply unit 3 and the heat exchange unit 4, the opening and closing of the two flow paths and the flow ratio can be controlled respectively. Similarly, a third valve 53 can be set on the connecting pipeline between the mixed material outlet 12 and the heat exchange unit 4, and a fourth valve 54 can be set on the branch of the external discharge port 6, so that the water and the mixed medium can be heat exchanged independently.

[0033] Figure 2 Flow chart of the control method of the feeding system provided in this embodiment. Figure 2 As shown, the control method includes the following steps:

[0034] The second aspect of the present invention provides a control method for a feeding system, which is applicable to the feeding system in any of the above technical solutions, and the control method at least comprises the following steps:

[0035] In the water supply step S1 , water is supplied into the stirring chamber 1 .

[0036] The stirring step S2 is to stir and mix the water and materials in the stirring chamber 1 to obtain a mixed material.

[0037] In the first heat exchange step S3 , the water in the water supply step S1 is passed into the heat exchange unit 4 for heat exchange and then passed into the stirring chamber 1 .

[0038] In the second heat exchange step S4, the mixed material obtained in the stirring step S2 is passed into the heat exchange unit 4 for heat exchange.

[0039] In the discharging step S5, the mixed material obtained in the stirring step S2 or the mixed material after the heat exchange in the second heat exchange step S4 is discharged.

[0040] Specifically, for the case where water supply and temperature control are not required, the water supply step S1 is first executed, the first valve 51 is opened, the second valve 52 is closed, and the water supply unit 3 directly supplies water to the stirring chamber 1; for the case where water supply and temperature control are required, the water supply step S1 is first executed, the water supply unit 3 supplies water, and then the first heat exchange step S3 is executed, the second valve 52 is opened, and the aqueous solution supplied in the water supply step S1 is passed into the heat exchange unit 4 for heat exchange and then passed into the stirring chamber 1.

[0041] Afterwards, a stirring step S2 is performed to stir and mix the water and materials in the stirring chamber 1 to obtain a mixed material, and the mixed material is discharged from the mixed material outlet 12 of the stirring chamber 1 .

[0042] In the case where the output temperature control of the mixed material is not required, the discharge step S5 is executed, the third valve 53 is closed, and the fourth valve 54 is opened, and the mixed material flowing out of the stirring chamber 1 directly enters the external discharge port 6 and is discharged from the feeding system; in the case where the output temperature control of the mixed material is required, the second heat exchange step S4 is first executed, the third valve 53 is opened, and the mixed material obtained in the stirring step S2 is passed into the heat exchange unit 4 for heat exchange, and then the discharge step S5 is executed to discharge the mixed material after heat exchange from the feeding system.

[0043] In this embodiment, the material enters the stirring chamber 1 from the material inlet 13, and the water is supplied by the water supply unit 3 and first enters the heat exchange unit 4. After heat exchange in the heat exchange unit 4, the water at the first temperature enters the stirring chamber 1 and mixes with the material to obtain a mixed material. The mixed material is connected to the water supply unit 3 and the mixed material outlet 12 by the heat exchange inlet 41 of the heat exchange unit 4, and the heat exchange outlet 42 of the heat exchange unit 4 can be switched to be connected to the external discharge port 6 or the water supply inlet 11. The aqueous solution supplied by the water supply unit 3 can flow through the heat exchange unit 4 and then enter the stirring chamber 1 through the water supply inlet 11, so that the water and the material at a specified temperature can be mixed and stirred in the stirring chamber 1, and the mixed material flowing out of the mixed material outlet 12 of the stirring chamber 1 can also flow through the heat exchange unit 4 and then flow out from the external discharge port 6, so that the temperature of the mixed material flowing out of the feeding system can be controlled. The feeding system provided in the present application can achieve constant temperature control of the input aqueous solution and constant temperature control of the output mixed material through a simple heat exchange device and pipeline switching setting.

[0044] Second embodiment

[0045] Figure 3 This is a schematic diagram of a preferred feeding system provided by the present utility model. Figure 3 As shown, in the third embodiment of the utility model, the feeding system can also have a medium storage tank 7, which is connected to the medium inlet 43 of the medium pipeline of the heat exchange unit 4, so that the heat exchange medium can be continuously introduced into the medium pipeline to achieve heat exchange and temperature control with water or mixed materials in the heat exchange pipeline.

[0046] The medium storage tank 7 may be any container with a heat exchange medium built in it, and one or more medium storage tanks 7 may be provided in the feeding system, which is not limited here. Figure 3An example of a preferred situation is shown in the figure, in which the feeding system has two parallel medium storage tanks 7 (a first medium storage tank 71 and a second medium storage tank 72), and the medium inlet 43 of the heat exchange unit 4 is switchably connected to the first medium storage tank 71 and / or the second medium storage tank 72, and the medium temperature of the first medium storage tank 71 is higher than the medium temperature of the second medium storage tank 72. By connecting the first medium storage tank 71 and the second medium tank 72 with different internal medium temperatures to the medium inlet 43 of the medium pipeline, the medium temperature in the medium pipeline can be adjusted by adjusting the ratio of the medium flow rate from the first medium storage tank 71 to the second medium tank 72 flowing into the medium pipeline, so that the temperature control of the heat exchange unit 4 for water and mixed medium can be within a range, and the temperature control is more accurate.

[0047] Further preferably, the feeding system may also include a proportional control device 73, and a temperature sensor 74 is provided at the heat exchange outlet 42 of the heat exchange unit 4. The proportional control device 73 is communicated with the temperature sensor 74, and the flow ratio of the medium flowing out of the first medium storage tank 71 and the second medium storage tank 72 is controlled according to the detection result of the temperature sensor 74, so that the temperature of the water or mixed material at the heat exchange outlet 42 can be adjusted in real time, and the temperature of the water or mixed material after heat exchange can be kept more accurately, and the influence of external environmental changes on the heat exchange temperature can be eliminated, so as to keep the temperature of the water or mixed material after heat exchange more stable.

[0048] Figure 4 This is a flow chart of a preferred control method for a feeding system provided by the second embodiment of the present invention. Figure 3 and Figure 4 From the perspective of control, the control method of the feeding system also includes:

[0049] The heat exchange temperature adjustment step S6 controls the flow rate ratio of the medium flowing out of each medium storage tank 7 according to the temperature of the water after the heat exchange in the first heat exchange step S3, or according to the temperature of the mixed material after the heat exchange in the second heat exchange step S4.

[0050] Specifically, on the basis of the control method of the feeding system of the first embodiment, while executing the first heat exchange step S3, the heat exchange temperature adjustment step S6 is executed, and the temperature of the water after heat exchange is detected in real time through the detection result of the temperature sensor 74 of the heat exchange outlet 42, and then the proportional control device 73 adjusts the flow ratio of the medium flowing out of the first medium storage tank 71 and the second medium storage tank 72 according to the temperature of the water after heat exchange. For example, when the temperature of the water after heat exchange is lower than the preset temperature, the proportional control device 73 can increase the proportion of the medium flowing out of the first medium storage tank 71 and reduce the proportion of the medium flowing out of the second medium storage tank 72; when the temperature of the water after heat exchange is higher than the preset temperature, the proportional control device 73 can reduce the proportion of the medium flowing out of the first medium storage tank 71 and increase the proportion of the medium flowing out of the second medium storage tank 72. Similarly, the heat exchange temperature adjustment step S6 can also be executed while executing the second heat exchange step S4.

[0051] In this embodiment, through the cooperation of the proportional control device 73 and the temperature sensor 74, the temperature of the water and / or mixed material after heat exchange can be detected in real time, and when the temperature of the water and / or mixed material after heat exchange changes, real-time adjustments can be made to keep the temperature of the water or mixed material after heat exchange more accurate.

[0052] Among them, preferably, some stirring units 8 can also be arranged in the stirring chamber 1 for uniformly mixing water and materials. Especially for the case of mixing aqueous solutions and solid materials, in order to better prevent the materials from agglomerating, better stirring and mixing effects can be achieved by arranging stirring blades in the stirring chamber 1. Figure 3 The figure shows a preferred structure of a stirring unit 8, which has an air supply part and an air pipe. The air pipe extends into the stirring chamber 1, and an air outlet is provided on the wall of the air pipe. Therefore, air or inert gas can be supplied into the air pipe through the air supply part, and bubbles are continuously generated in the stirring chamber 1 through the air outlet to promote mixing and stirring of water and materials in the stirring chamber 1.

[0053] In some preferred embodiments, on the basis of realizing constant temperature input of water and constant temperature output of mixed materials in the feeding system, it is also possible to further realize quantitative input of water in the feeding system and quantitative and constant speed output of mixed materials.

[0054] Among them, in order to realize the quantitative input of water into the feeding system, a first flow meter 101 and a first solenoid valve 102 are arranged in the water supply unit 3, and the feeding system also includes: an input flow control device (not shown in the figure), which is communicated with the first flow meter 101 and the first solenoid valve 102, and controls the opening of the first solenoid valve 102 according to the detection result of the first flow meter 101, so that the real-time flow rate and cumulative flow rate of the water supplied by the water supply unit 3 can be adjusted in real time, and the constant temperature and quantitative control of the aqueous solution supplied by the water supply unit 3 can be realized at the same time.

[0055] In order to realize the quantitative and constant speed output of the mixed material of the feeding system, an acceleration pump 105 is provided at the mixed material outlet 12 of the stirring chamber 1, and a second flow meter 103 is provided downstream of the acceleration pump 105. The feeding system also includes: an output control device, which is in communication connection with the second flow meter 103 and the acceleration pump 105, and the output control device is used to control the speed of the acceleration pump 105 according to the detection result of the second flow meter 103. The input flow control device controls the opening of the first solenoid valve 102 according to the detection result of the flow meter, and can adjust the real-time flow rate and cumulative flow rate of the water supplied by the water supply unit 3 in real time, so as to realize the constant temperature and quantitative control of the aqueous solution supplied by the water supply unit 3 at the same time.

[0056] It is worth mentioning that Figure 5 This is a flow chart of another control method of a feeding system provided by the second embodiment of the present utility model. Figure 3 and Figure 5 From the above, in the water supply step S1, the following sub-steps are also included:

[0057] The quantitative water supply step S11 detects the cumulative flow rate of water supplied into the stirring chamber 1 in the water supply step S1, and stops the water supply step S1 when the cumulative flow rate of water is greater than or equal to a preset value of the water supply amount.

[0058] In the discharge step S5, the following sub-steps are also included:

[0059] The quantitative output step S51 detects the cumulative flow rate of the mixed material discharged in the discharge step S5, and stops the discharge step S5 when the cumulative flow rate of the mixed material is greater than or equal to a preset value of the material discharge amount.

[0060] The constant speed output step S52 detects the flow rate of the mixed material discharged in the discharge step S5, and when the discharge flow rate of the mixed material is greater than a preset flow rate, reduces the discharge flow rate of the discharge step.

[0061] In this embodiment, the feeding system can simultaneously control the quantity, speed and temperature of the mixed medium flowing out of the stirring chamber 1 .

[0062] It should be noted that the control method of the feeding system is not limited to the steps listed in this embodiment. Other steps not described or details not specifically described can be understood as the same as the existing process, and this embodiment will not be repeated.

[0063] In some other embodiments, the feeding system further has a recovery unit (not shown in the figure), which is connected to the medium outlet 44 of the heat exchange unit 4 and is used to collect the medium after heat exchange for recycling.

[0064] In some other embodiments, the feeding system further has a low liquid level switch 106, which is arranged on the pipeline between the acceleration pump 105 and the mixed material outlet 12. The low liquid level switch 106 is closed when it detects that the liquid level in the pipeline is low, thereby preventing the acceleration pump 105 from idling.

[0065] In some other embodiments, the feeding system further has a one-way valve 107, which is arranged at the outlet of the air supply part to prevent the compressed air supplied by the air supply part from flowing back.

[0066] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A feeding system, characterized in that: include: A stirring chamber, used to contain water and materials and stir the mixed water and materials, the stirring chamber is provided with a water supply inlet and a mixed material outlet, the mixed material outlet is used to allow the mixed material formed after the materials and water are stirred to flow out of the stirring chamber; a water supply unit, connected to the water supply inlet, wherein the water supply unit is provided with a first flow meter and a first solenoid valve; a heat exchange unit, wherein a heat exchange inlet of the heat exchange unit is connected to the water supply unit and the mixed material outlet, and the heat exchange outlet of the heat exchange unit is switchably connected to an external discharge outlet or the water supply inlet to control the temperature of water entering the stirring chamber and the temperature of the mixed material flowing out of the mixed material outlet; The input flow control device is communicatively connected with the first flow meter and the first solenoid valve, and controls the opening of the first solenoid valve according to the detection result of the first flow meter.

2. The feeding system according to claim 1, characterized in that: Also includes: The medium storage tank, the heat exchange unit is built with a heat exchange pipeline and a medium pipeline for mutual heat exchange, and the medium pipeline is connected to the medium storage tank.

3. The feeding system according to claim 2, characterized in that: The medium storage tank includes at least a first medium storage tank and a second medium storage tank. The medium pipeline of the heat exchange unit can be switchably connected to the first medium storage tank and / or the second medium storage tank. The medium temperature of the first medium storage tank is higher than the medium temperature of the second medium storage tank.

4. The feeding system according to claim 3, characterized in that: Also includes: A proportional control device is provided at the heat exchange outlet of the heat exchange unit. The proportional control device is communicatively connected with the temperature sensor and controls the flow ratio of the medium flowing out of the first medium storage tank and the second medium storage tank according to the detection result of the temperature sensor.

5. The feeding system according to claim 1, characterized in that: The mixed material outlet of the stirring chamber is provided with an acceleration pump, and a second flow meter is provided downstream of the acceleration pump. The feeding system further comprises: an output control device, which is in communication connection with the second flow meter and the acceleration pump, The output control device is used to control the rotation speed of the acceleration pump according to the detection result of the second flow meter.

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