A dual-material mixing system and a mixing and discharging control method

Abstract

The present invention relates to the technical field of material mixing, and provides a dual-material mixing system and a mixing and discharging control method. The system realizes rapid cooling of materials through a heat exchanger of a stirring device, and realizes uniform mixing and stirring of materials through a scraper stirring blade, while avoiding residual adhesion of materials and long-term heated paste, and realizes feeding from the bottom of a tank and discharging from the top to enhance the cooling effect. Since the scraper stirring blade of the stirring device quickly cools the finished materials, the outlet materials can quickly enter the next level of materials when they meet the material filling requirements, and the temperature is accurately adjusted through a stirring buffer device to meet the discharging requirements such as filling. At the same time, the system has a large material accommodating capacity, can realize continuous and uniform discharging of materials, and can buffer materials when equipment fails. At the same time, a stirring mechanism is provided to ensure uniform mixing of materials at low temperatures and avoid material deposition and stratification. By setting a two-stage stirring device, rapid cooling of materials and uniform and continuous discharging of materials are achieved.

Description

Technical Field

[0001] The invention relates to the technical field of material stirring, and in particular to a dual-material stirring system and a stirring and discharging control method. Background Art

[0002] The preparation of products often requires high-temperature preparation and material mixing during production before canning to form the final product for sale, such as sauces, etc. Since the materials after high-temperature heating and mixing need to be cooled before canning, the overheating of the product will not affect the taste, color, etc., but this will affect the continuity of material discharging and the production efficiency is low. Summary of the invention

[0003] The purpose of the present invention is to provide a dual-material stirring system and a stirring and discharging control method to solve the technical problem that the existing materials cannot be quickly canned after being heated and stirred.

[0004] In the first aspect, an embodiment of the present invention provides a dual-material stirring system, including: a source tank, a stirring device and a stirring buffer device; the source tank is used to heat and mix raw materials to prepare finished materials; the bottom of the stirring device is connected to the bottom of the source tank through a first material delivery pipeline, the stirring device includes a first tank body, a heat exchanger and a scraper stirring blade, the heat exchanger is used to quickly exchange heat for the finished materials, and the scraper stirring blade is used to stir and mix the finished materials transported from the source tank at a first stirring speed, so that the finished materials after heat exchange by the heat exchanger and stirring by the scraper stirring blade are discharged from the top of the stirring device, and the discharged The outlet temperature is controlled below a preset temperature; the top of the stirring and buffering device is connected to the top of the stirring device through a second material delivery pipeline, so that the finished material discharged from the top of the stirring device enters the stirring and buffering device; the bottom of the stirring device is connected to the discharge pipeline of the stirring and buffering device through a third material delivery pipeline, so as to transport the finished material remaining in the stirring device to the filling machine; wherein the stirring and buffering device includes a second tank body and a stirring mechanism, and the stirring mechanism is used to mix the finished material entering the stirring and buffering device at a second stirring speed, and the second stirring speed is less than the first stirring speed.

[0005] Optionally, the dual-material mixing system further includes: a control module, a first sterile air supply module and a second sterile air supply module; the first sterile air supply module is connected to the first material delivery pipeline through a first gas pipeline, and a first gas valve is provided on the first gas pipeline; a source tank discharge valve and a material delivery valve are provided at one end of the first material delivery pipeline close to the source tank;

[0006] The second sterile air supply module is connected to the air inlet of the stirring and buffering device through a second gas pipeline, the second gas pipeline is provided with a second gas valve, the discharge pipeline is provided with a buffer tank discharge valve, and the second material delivery pipeline is provided with a buffer tank feed valve; the third material delivery pipeline is provided with a first valve and a second valve, the first valve is provided close to the bottom of the stirring device, and the second valve is provided close to the discharge pipeline;

[0007] The control module is electrically connected to the source tank discharge valve, the delivery valve, the first gas valve, the second gas valve, the buffer tank feed valve, the buffer tank discharge valve, the first valve and the second valve, respectively, and is used to control the delivery valve, the first gas valve and the buffer tank feed valve to open, and control the source tank discharge valve, the second gas valve, the buffer tank discharge valve, the first valve and the second valve to close, so as to deliver the sterile air in the first sterile air supply module to the stirring device, so that the finished material after heat exchange by the heat exchanger and stirring by the scraper stirring blade is discharged from the top of the stirring device and enters the stirring cache device for further mixing and cooling;

[0008] Alternatively, it is used to control the opening of the second gas valve, the buffer tank feed valve, the first valve and the second valve, and to control the closing of the source tank discharge valve, the delivery valve, the first gas valve and the buffer tank discharge valve, so as to deliver the sterile air in the second sterile air supply module to the stirring device, thereby discharging the finished product material remaining in the stirring device from the bottom and delivering it to the filling machine through the third delivery pipeline and the discharge pipeline.

[0009] Optionally, the control module is also used to control the opening of the second gas valve and the buffer tank discharge valve, and control the closing of the source tank discharge valve, the feed valve, the first gas valve, the second gas valve, the buffer tank feed valve, the first valve and the second valve, so as to deliver the sterile air in the second sterile air supply module to the stirring and buffer device, thereby discharging the finished material in the stirring and buffer device from the bottom and delivering it to the filling machine through the discharge pipeline.

[0010] Optionally, the heat exchanger comprises: a coolant supply pipeline, a heat exchange module and a coolant discharge module; the heat exchange module is arranged in the interlayer of the inner wall of the first tank body, the coolant supply module is connected to the inlet of the heat exchange module through an inlet pipeline, the coolant discharge module is connected to the outlet of the heat exchange module through a discharge pipeline, the inlet pipeline is provided with a first liquid valve; the discharge pipeline is provided with a second liquid valve;

[0011] A temperature detection module is provided at one end of the second material delivery pipeline close to the stirring device, and the control module is electrically connected to the temperature detection module and the first liquid valve respectively, and is used to adjust the valve opening of the first liquid valve according to the temperature of the finished material discharged from the stirring device detected by the temperature detection module.

[0012] Optionally, the control module is electrically connected to the source tank, the stirring device and the stirring buffer device respectively;

[0013] When the finished material after heat exchange by the heat exchanger and stirring by the scraper stirring blade is discharged from the top of the stirring device to the stirring buffer device, the scraper stirring blade is controlled to rotate forward at the first stirring speed, and the first stirring speed is controlled at 45-60 rpm; and the stirring mechanism of the stirring buffer device is controlled to stir at the second stirring speed, and the second stirring speed is controlled at 15-25 rpm;

[0014] And, when the finished product material remaining in the stirring device is discharged from the bottom and transported to the filling machine through the third feeding pipeline and the discharge pipeline, the scraper stirring blade is controlled to reverse at a third stirring speed, and the third stirring speed is controlled at 15~20rpm.

[0015] Optionally, the control module is used to transport the sterile air in the second sterile air supply module to the stirring cache device, and at the same time control the stirring mechanism to stir at a fourth stirring speed, so that when the finished material in the stirring cache device is discharged from the bottom, the fourth stirring speed is controlled at 5~10rpm.

[0016] Optionally, a pressure regulating valve is further provided on the first gas pipeline. The pressure regulating valve is arranged on a side of the first gas valve close to the first sterile air supply module and is used to adjust the pressure of sterile air entering the first gas pipeline.

[0017] In a second aspect, an embodiment of the present invention further provides a stirring and discharging control method. Based on the dual-material stirring system as described in the first aspect, the stirring and discharging control method includes:

[0018] After the source tank has completed heating, mixing and emptying of the raw materials, the feed valve, the first gas valve and the buffer tank feed valve are controlled to be opened, and the source tank discharge valve, the second gas valve, the buffer tank discharge valve, the first valve and the second valve are controlled to be closed, so as to deliver the sterile air in the first sterile air supply module to the stirring device, so that the finished material after heat exchange by the heat exchanger and stirring by the scraper stirring blade is discharged from the top of the stirring device and enters the stirring cache device for further mixing and cooling;

[0019] The second gas valve, the buffer tank feed valve, the first valve and the second valve are controlled to be opened, and the source tank discharge valve, the delivery valve, the first gas valve and the buffer tank discharge valve are controlled to be closed, so as to deliver the sterile air in the second sterile air supply module to the stirring device, thereby discharging the finished product material remaining in the stirring device from the bottom and delivering it to the filling machine through the third delivery pipeline and the discharge pipeline.

[0020] Optionally, after the finished product material remaining in the stirring device is discharged from the bottom and transported to the filling machine through the third feeding pipeline and the discharge pipeline, the method further includes:

[0021] Control the second gas valve and the buffer tank discharge valve to open, and control the source tank discharge valve, the feed valve, the first gas valve, the second gas valve, the buffer tank feed valve, the first valve and the second valve to close, so as to deliver the sterile air in the second sterile air supply module to the stirring and buffering device, thereby discharging the finished material in the stirring and buffering device from the bottom and delivering it to the filling machine through the discharge pipeline.

[0022] The embodiments of the present invention have at least the following technical effects:

[0023] The dual-material stirring system provided by the embodiment of the present invention first realizes rapid cooling of the material through the heat exchanger of the stirring device, and simultaneously utilizes the scraper stirring blade to realize mixing and stirring of the material, while avoiding residual adhesion of the material and long-term heated paste, and realizing the method of feeding from the bottom of the tank and discharging from the top to enhance the cooling effect, and realize rapid and uniform cooling of the material; since the scraper stirring blade of the stirring device quickly cools the finished material, the outlet material can quickly enter the next level of material when it meets the material filling requirements, and the temperature is further accurately adjusted by the stirring buffer device so that the temperature meets the filling and other discharging requirements. At the same time, it has a large material accommodating capacity, can realize continuous and uniform discharging of the material, and can cache the material when the equipment fails. At the same time, a stirring mechanism is provided to further mix the material, ensure the mixing of the material at low temperature, avoid material deposition and stratification, and by setting a two-stage stirring device, rapid cooling of the material and uniform and continuous discharging of the material can be realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1A schematic diagram of the operation of feeding materials from a source tank to a stirring device and a stirring buffer device in a dual-material stirring system provided by an embodiment of the present invention;

[0026] Figure 2 A schematic diagram of the operation of discharging residual material in a stirring device in a dual-material stirring system provided in an embodiment of the present invention;

[0027] Figure 3 A schematic diagram of the operation of discharging residual material in a mixing buffer device in a dual-material mixing system provided in an embodiment of the present invention;

[0028] Figure 4 A flow chart of a stirring and discharging control method based on a dual-material stirring system provided in an embodiment of the present invention. DETAILED DESCRIPTION

[0029] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0030] Those skilled in the art will understand that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as those generally understood by those skilled in the art in the field to which the present invention belongs. It should also be understood that terms such as those defined in common dictionaries should be understood to have meanings consistent with the meanings in the context of the prior art, and will not be interpreted with idealized or overly formal meanings unless specifically defined as here.

[0031] Those skilled in the art will appreciate that, unless otherwise stated, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that the term "comprising" used in the specification of the present invention refers to the presence of the features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or groups thereof. The term "and / or" used herein includes all or any unit and all combinations of one or more associated listed items.

[0032] For sauce products with high viscosity, high solid content, and particulate materials, small production batches, frequent production changes, high temperature before discharging, long time required for cooling, low production efficiency, thick sauce, and easy to cause uneven temperature, affecting the quality of the sauce, thick sauce, and a lot of discharge residue. Therefore, the embodiments of the present invention provide a dual-material stirring system and a stirring and discharging control method.

[0033] like Figure 1 As shown, an embodiment of the present invention provides a dual-material stirring system, comprising: a source tank 100, a stirring device 200 and a stirring buffer device 300. The source tank 100 is used to heat the mixed raw materials to prepare the finished material.

[0034] Specifically, the bottom of the stirring device 200 is connected to the bottom of the source tank 100 through the first material delivery pipeline 400. The end of the first material delivery pipeline 400 away from the bottom of the source tank 100 is provided with a delivery valve 420. After the raw materials are heated and mixed, the finished materials are delivered to the first material delivery pipeline 400, and then delivered to the stirring device 200. The stirring device 200 specifically includes: a first tank body, a heat exchanger and a scraper stirring blade. The heat exchanger is used to quickly exchange heat for the finished materials. The scraper stirring blade is used to stir and mix the finished materials transported from the source tank at a first stirring speed, so that the finished materials after heat exchange by the heat exchanger and stirring by the scraper stirring blade are discharged from the top of the stirring device 200, and the discharge temperature is controlled below a preset temperature (for example: 30°C).

[0035] It should be noted that the scraper stirring blade can scrape off the material on the inner wall of the first tank body while stirring the material, so as to avoid the material residue from adhering and the paste from being heated for a long time, and the scraper stirring blade can only make the finished material be discharged from the top of the stirring device 200 when it rotates in a certain direction (for example: when rotating clockwise, it is equivalent to forward rotation). This way of material entering from the bottom and exiting from the top prolongs the residence time of the material in the first tank body, which is conducive to rapid cooling. Optionally, in order to facilitate rapid filling, the temperature of the material discharged from the top of the stirring device 200 is generally not more than 30°C, because too high a temperature is not conducive to direct filling of the material, and too low a temperature will prolong the stirring and cooling time.

[0036] Furthermore, the top of the stirring and buffering device 300 is connected to the top of the stirring device 200 through the second feeding pipeline 500, so that the finished material discharged from the top of the stirring device 200 enters the stirring and buffering device 300, and the stirring and buffering device 300 can both buffer the material and cool it down, ensuring that the finished material is always at a suitable product discharge temperature. Specifically, the bottom of the stirring device 200 is connected to the discharge pipeline 700 of the stirring and buffering device 300 through the third feeding pipeline 600. Since the end of the discharge pipeline 700 of the stirring and buffering device 300 is connected to the filling machine 800, the finished material remaining in the stirring device 200 can be transported to the filling machine 800 through the third feeding pipeline 600 and part of the discharge pipeline 700. Among them, the stirring and caching device 300 includes a second tank body and a stirring mechanism, and the stirring mechanism is used to mix the finished material entering the stirring and caching device 300 at a second stirring speed. The second stirring speed is lower than the first stirring speed. The reduced stirring speed makes it less likely for the material to precipitate and stratify, and is beneficial to the insulation of the material.

[0037] The dual-material stirring system provided by the embodiment of the present invention first realizes rapid cooling of the material through the heat exchanger of the stirring device 200, and at the same time utilizes the scraper stirring blade to realize mixing and stirring of the material, while avoiding residual adhesion of the material and long-term heated paste, and realizing the method of feeding from the bottom of the tank and discharging from the top to enhance the cooling effect, and realizing rapid and uniform cooling of high-viscosity, high-solid content, and particulate materials such as sauce products; because the scraper stirring blade of the stirring device 200 quickly cools the finished material, the outlet material can quickly enter the next level of material when it meets the material filling requirements, and the temperature is further accurately adjusted by the stirring buffer device 300 so that the temperature meets the discharging requirements such as filling, and at the same time has a large material accommodating capacity, can realize continuous and uniform discharging of materials, and can cache materials when equipment fails and other problems occur. At the same time, a stirring mechanism is provided to further mix the materials, ensure the mixing of materials at low temperatures, avoid material deposition and stratification, and by setting a two-stage stirring device, rapid cooling of materials and uniform and continuous discharging of materials can be achieved.

[0038] In some embodiments, see Figure 1 The dual material mixing system also includes: control module ( Figure 1 ), a first sterile air supply module 900 and a second sterile air supply module 1000, the first sterile air supply module 900 is used to push the material in the first feed pipeline 400 from the bottom of the stirring device 200 into the stirring device 200 for mixing and cooling, and discharge it from the top of the stirring device 200 to the stirring buffer device 300; the second sterile air supply module 1000 is used to push the residual material in the stirring device 200 and the residual material in the stirring buffer device 300 to the filling machine 800.

[0039] Specifically, the first sterile air supply module 900 is connected to the first material delivery pipeline 400 through a first gas pipeline 910, and a first gas valve 920 is provided on the first gas pipeline 910; a source tank discharge valve 410 for controlling the discharge of finished materials in the source tank 100 is provided at one end of the first material delivery pipeline 400 close to the source tank 100, and a material delivery valve 420 is provided at one end of the first material delivery pipeline 400 close to the bottom of the stirring device 200. The second sterile air supply module 1000 is connected to the air inlet of the stirring and buffering device 300 through the second gas pipeline 1010, and a second gas valve 1020 is arranged on the second gas pipeline 1010, a cache tank discharge valve 710 is arranged on the discharge pipeline 700, and a cache tank feed valve 510 is arranged on the second material delivery pipeline 500; a first valve 610 and a second valve 620 are arranged on the third material delivery pipeline 600, the first valve 610 is arranged close to the bottom of the stirring device 200, and the second valve 620 is arranged close to the discharge pipeline 700.

[0040] During the first stage of the priming process, continue to refer to Figure 1 The control module is electrically connected to the source tank discharge valve 410, the first gas valve 920, the second gas valve 1020, the buffer tank feed valve 510, the buffer tank discharge valve, and the first valve 610 and the second valve 620, respectively, and is used to control the opening of the feed valve 420, the first gas valve 920 and the buffer tank feed valve 510, and to control the closing of the source tank discharge valve 410, the second gas valve 1020, the buffer tank discharge valve 710, the first valve 610 and the second valve 620, so as to transport the sterile air in the first sterile air supply module 900 to the stirring device 200, so that the finished material after heat exchange by the heat exchanger and stirring by the scraper stirring blade is discharged from the top of the stirring device 200 and enters the stirring and buffering device 300 for further mixing and cooling.

[0041] In the second stage of the top material process, if Figure 2 As shown, the control module is used to control the opening of the second gas valve 1020, the buffer tank feed valve 510, the first valve 610 and the second valve 620, and the closing of the source tank discharge valve 410, the delivery valve 420, the first gas valve 920 and the buffer tank discharge valve 710, so as to deliver the sterile air in the second sterile air supply module 1000 to the stirring device 200, thereby discharging the finished product material remaining in the stirring device 200 from the bottom and delivering it to the filling machine 800 through the third delivery pipeline 600 and the discharge pipeline 700, so as to ensure that the material in the stirring device 200 is discharged as completely as possible.

[0042] In the third stage of the top material process, if Figure 3As shown, the control module is also used to control the opening of the second gas valve 1020 and the cache tank discharge valve 710, and the closing of the source tank discharge valve 410, the feed valve 420, the first gas valve 920, the cache tank feed valve 510, the first valve 610 and the second valve 620, so as to transport the sterile air in the second sterile air supply module 1000 to the stirring cache device 300, thereby discharging the finished material in the stirring cache device 300 from the bottom and transporting it to the filling machine 800 through the discharge pipeline 700, so as to ensure that the material in the stirring cache device 300 is discharged as completely as possible.

[0043] In some embodiments, continue to refer to Figure 1 The heat exchanger of the stirring device 200 specifically includes: a coolant supply module 211, a heat exchange module 213 and a coolant discharge module 212.

[0044] Specifically, the heat exchange module 213 is arranged in the interlayer of the inner wall of the first tank body, the cooling liquid supply module 211 is connected to the inlet of the heat exchange module 213 through the liquid inlet pipeline, the cooling liquid discharge module 212 is connected to the outlet of the heat exchange module 213 through the liquid discharge pipeline, the liquid inlet pipeline is provided with a first liquid valve 214 and a liquid supply valve 216, and the liquid discharge pipeline is provided with a second liquid valve 215, wherein the valve opening of the first liquid valve 214 can be adjusted to control the discharge temperature of the stirring device 200; the second liquid valve 215 is a check valve to prevent external water from flowing back; the liquid supply valve 216 is an angle valve, which is used to control the opening and closing of the liquid inlet pipeline.

[0045] Furthermore, a temperature detection module 217 is provided at one end of the second material delivery pipeline 500 close to the stirring device 200, and the control module is electrically connected to the temperature detection module 217 and the first liquid valve 214, respectively, and is used to adjust the valve opening of the first liquid valve 214 according to the temperature of the finished material discharged from the stirring device 200 detected by the temperature detection module 217. For example: during cooling, the liquid supply valve 216 is controlled to remain normally open, and if the temperature detection module 217 detects that the discharge temperature exceeds the preset temperature, the valve opening of the first liquid valve 214 is increased, and if the temperature detection module 217 detects that the discharge temperature is lower than the preset temperature, the valve opening of the first liquid valve 214 is reduced, thereby realizing automatic feedback adjustment of the cooling temperature.

[0046] Optionally, ice water is supplied to the cooling liquid supply module, and the temperature and flow rate of the ice water can be set according to the temperature requirement of the finished material discharged from the stirring device 200 .

[0047] In some embodiments, the control module is electrically connected to the source tank 100, the stirring device 200 and the stirring buffer device 300 respectively. The control module controls the source tank 100 to heat and mix the raw materials, and then controls the heat exchange of the heat exchanger and the scraper stirring blade of the stirring device 200. At the same time, the first sterile air supply module 900 is used to discharge the finished material after the heat exchange of the heat exchanger and the stirring of the scraper stirring blade from the top of the stirring device 200 to the stirring buffer device 300. In this process, the scraper stirring blade is controlled to rotate forward, and the forward rotation of the scraper stirring blade can transport the material from the bottom of the tank upward; and the forward rotation speed of the scraper stirring blade is the first stirring speed, which is generally controlled at 45~60rpm. The first stirring speed is faster and can accelerate the cooling of the material. The finished material enters the stirring buffer device 300, and the stirring mechanism of the stirring buffer device 300 is controlled to stir at the second stirring speed, which is controlled at 15~25rpm. The stirring speed in the stirring buffer device 300 is slow, and the material is not easy to precipitate and stratify, which ensures the product quality and is conducive to material insulation. After the finished material is stirred in the stirring and buffering device 300 for a preset time, it can be directly discharged from the bottom of the stirring and buffering device 300 and transported to the filling machine 800 through the discharge pipeline 700.

[0048] After the initial filling work is completed (i.e., the finished materials in the stirring buffer device 300 are basically exhausted), the scraper stirring blade of the stirring device 200 is controlled to work in the reverse direction, and the second sterile air supply module 1000 is used to supply sterile air into the stirring device 200, so that the finished materials remaining in the stirring device 200 are discharged from the bottom and conveyed to the filling machine 800 through the third feeding pipeline 600 and the discharge pipeline 700. During this process, the scraper stirring blade is reversed, and the reversal of the scraper stirring blade is beneficial to the discharge of materials from the bottom of the first tank body; and the speed of the reversed scraper stirring blade is the third stirring speed, and the third stirring speed is controlled at 15~20rpm, that is, by reducing the speed of the scraper stirring blade to protect the scraper, avoid damage to the scraper in reverse, and the low-speed reversal can help the material to be transported downward, while reducing the flow rate of ice water in the heat exchanger, that is, the first liquid valve 214 adopts a fixed small opening (for example: 30%~40% of the maximum opening), which is beneficial to material temperature control.

[0049] In the next stage, the control module is used to transport the sterile air in the second sterile air supply module 1000 to the stirring buffer device 300, and at the same time control the stirring mechanism to stir at a fourth stirring speed, so that when the finished material in the stirring buffer device 300 is discharged from the bottom, the fourth stirring speed is controlled at 5~10rpm. Since there is less residual material at the end, a lower rotation speed is conducive to the rapid discharge of the material with high-pressure gas.

[0050] In some embodiments, the dual material mixing system also includes a third sterile air supply module 1200, which is connected to the discharge pipeline through a third gas pipeline 1210, and a third gas valve 1220 is arranged on the third gas pipeline 1210. The control module is electrically connected to the third gas valve 1220, and is used to control the third gas valve 1220 to open after the residual material in the mixing buffer device is discharged and before cleaning, and the other valves are closed, so that the sterile air in the third sterile air supply module 1200 can be used to further discharge the residual material in the discharge pipeline and the filling machine.

[0051] In some embodiments, continue to refer to Figure 1 A pressure regulating valve 930 is also provided on the first gas pipeline 910. The pressure regulating valve 930 is arranged on the side of the first gas valve 920 close to the first sterile air supply module 900, and is used to adjust the pressure of the sterile air entering the first gas pipeline 910. The pressure is generally controlled at 1.5 bar~2.5 bar to ensure that the supplied sterile air is within an appropriate pressure range. Too low a pressure is not conducive to the upward ejection of the material, and too high a pressure will affect the safety of subsequent equipment.

[0052] Based on the same inventive concept, the embodiment of the present invention also provides a stirring and discharging control method of the dual-material stirring system based on the above embodiment, such as Figure 4 As shown, the stirring discharging control method includes:

[0053] S100, after the source tank completes heating, mixing and emptying of the raw materials, the feed valve, the first gas valve and the buffer tank feed valve are controlled to be opened, and the source tank discharge valve, the second gas valve, the buffer tank discharge valve, the first valve and the second valve are controlled to be closed, so as to deliver the sterile air in the first sterile air supply module to the stirring device, so that the finished material after heat exchange by the heat exchanger and stirring by the scraper stirring blade is discharged from the top of the stirring device and enters the stirring buffer device for further mixing and cooling.

[0054] S200, controls the second gas valve, the buffer tank feed valve, the first valve and the second valve to open, and controls the source tank discharge valve, the delivery valve, the first gas valve and the buffer tank discharge valve to close, so as to deliver the sterile air in the second sterile air supply module to the stirring device, thereby discharging the finished product material remaining in the stirring device from the bottom and delivering it to the filling machine through the third delivery pipeline and the discharge pipeline.

[0055] S300, controls the second gas valve and the cache tank discharge valve to open, and controls the source tank discharge valve, the feed valve, the first gas valve, the second gas valve, the cache tank feed valve, the first valve and the second valve to close, so as to deliver the sterile air in the second sterile air supply module to the stirring cache device, thereby discharging the finished material in the stirring cache device from the bottom and delivering it to the filling machine through the discharge pipeline.

[0056] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying 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.

[0057] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0058] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected, or 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 invention can be understood according to specific conditions. In the description of this specification, specific features, structures, materials or characteristics can be combined in a suitable manner in any one or more embodiments or examples.

[0059] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A dual-material mixing system, characterized in that: include: Source tank, used to heat mixed raw materials and prepare finished materials; A stirring device, wherein the bottom of the stirring device is connected to the bottom of the source tank through a first material delivery pipeline, the stirring device comprises a first tank body, a heat exchanger and a scraper stirring blade, the heat exchanger is used to quickly exchange heat for the finished material, and the scraper stirring blade is used to stir and mix the finished material transported from the source tank at a first stirring speed, so that the finished material after heat exchange by the heat exchanger and stirring by the scraper stirring blade is discharged from the top of the stirring device, and the discharge temperature is controlled below a preset temperature; A stirring and caching device, wherein the top of the stirring and caching device is connected to the top of the stirring device through a second material delivery pipeline, so that the finished material discharged from the top of the stirring device enters the stirring and caching device; The bottom of the stirring device is connected to the discharge pipeline of the stirring and buffering device through a third material delivery pipeline, so as to transport the finished material remaining in the stirring device to the filling machine; wherein the stirring and buffering device comprises a second tank body and a stirring mechanism, and the stirring mechanism is used to mix the finished material entering the stirring and buffering device at a second stirring speed, and the second stirring speed is less than the first stirring speed; A first sterile air supply module, wherein the first sterile air supply module is connected to the first material delivery pipeline through a first gas pipeline, and a first gas valve is provided on the first gas pipeline; a source tank discharge valve and a material delivery valve are provided at one end of the first material delivery pipeline close to the source tank; A second sterile air supply module, the second sterile air supply module is connected to the air inlet of the stirring and buffering device through a second gas pipeline, a second gas valve is arranged on the second gas pipeline, a buffer tank discharge valve is arranged on the discharge pipeline, and a buffer tank feed valve is arranged on the second material delivery pipeline; a first valve and a second valve are arranged on the third material delivery pipeline, the first valve is arranged near the bottom of the stirring device, and the second valve is arranged near the discharge pipeline; a control module, wherein the control module is electrically connected to the source tank discharge valve, the feed valve, the first gas valve, the second gas valve, the buffer tank feed valve, the buffer tank discharge valve, the first valve and the second valve, respectively, and is used to control the feed valve, the first gas valve and the buffer tank feed valve to be opened, and control the source tank discharge valve, the second gas valve, the buffer tank discharge valve, the first valve and the second valve to be closed, so as to deliver the sterile air in the first sterile air supply module to the stirring device, thereby transferring the sterile air through the heat exchanger and the stirring of the scraper stirring blade. The finished product material is then discharged from the top of the stirring device and enters the stirring buffer device for further mixing and cooling; and when the second gas valve, the buffer tank feed valve, the first valve and the second valve are controlled to be opened, and the source tank discharge valve, the delivery valve, the first gas valve and the buffer tank discharge valve are controlled to be closed, the sterile air in the second sterile air supply module is delivered to the stirring device, so that the finished product material remaining in the stirring device is discharged from the bottom and delivered to the filling machine through the third delivery pipeline and the discharge pipeline; The control module is also used to control the second gas valve and the buffer tank discharge valve to open, and control the source tank discharge valve, the feed valve, the first gas valve, the second gas valve, the buffer tank feed valve, the first valve and the second valve to close, so as to deliver the sterile air in the second sterile air supply module to the stirring and buffering device, thereby discharging the finished material in the stirring and buffering device from the bottom and delivering it to the filling machine through the discharge pipeline; The control module is electrically connected to the source tank, the stirring device and the stirring buffer device respectively; when the finished material after heat exchange by the heat exchanger and stirring by the scraper stirring blade is discharged from the top of the stirring device to the stirring buffer device, the scraper stirring blade is controlled to rotate forward at the first stirring speed, and the first stirring speed is controlled at 45-60rpm; and the stirring mechanism of the stirring buffer device is controlled to stir at the second stirring speed, and the second stirring speed is controlled at 15-25rpm; and when the finished material remaining in the stirring device is discharged from the bottom and transported to the filling machine through the third feeding pipeline and the discharge pipeline, the scraper stirring blade is controlled to reverse at the third stirring speed, and the third stirring speed is controlled at 15-20rpm; The control module is used to transport the sterile air in the second sterile air supply module to the stirring buffer device, and at the same time control the stirring mechanism to stir at a fourth stirring speed, so that when the finished material in the stirring buffer device is discharged from the bottom, the fourth stirring speed is controlled at 5~10rpm.

2. The dual-material mixing system according to claim 1, characterized in that: The heat exchanger comprises: a coolant supply module, a heat exchange module and a coolant discharge module; The heat exchange module is arranged in the interlayer of the inner wall of the first tank body, the coolant supply module is connected to the inlet of the heat exchange module through an inlet pipeline, the coolant discharge module is connected to the outlet of the heat exchange module through a discharge pipeline, and a first liquid valve and a liquid supply valve are arranged on the inlet pipeline; a second liquid valve is arranged on the discharge pipeline; A temperature detection module is provided at one end of the second material delivery pipeline close to the stirring device, and the control module is electrically connected to the temperature detection module and the first liquid valve respectively, and is used to adjust the valve opening of the first liquid valve according to the temperature of the finished material discharged from the stirring device detected by the temperature detection module.

3. The dual-material mixing system according to claim 1, characterized in that: The first gas pipeline is also provided with a pressure regulating valve, which is arranged on a side of the first gas valve close to the first sterile air supply module and is used to regulate the pressure of the sterile air entering the first gas pipeline.

4. A stirring and discharging control method, based on the dual-material stirring system according to any one of claims 1 to 3, characterized in that: The stirring discharging control method comprises: After the source tank has completed heating, mixing and emptying of the raw materials, the feed valve, the first gas valve and the buffer tank feed valve are controlled to be opened, and the source tank discharge valve, the second gas valve, the buffer tank discharge valve, the first valve and the second valve are controlled to be closed, so as to deliver the sterile air in the first sterile air supply module to the stirring device, so that the finished material after heat exchange by the heat exchanger and stirring by the scraper stirring blade is discharged from the top of the stirring device and enters the stirring cache device for further mixing and cooling; The second gas valve, the buffer tank feed valve, the first valve and the second valve are controlled to be opened, and the source tank discharge valve, the delivery valve, the first gas valve and the buffer tank discharge valve are controlled to be closed, so as to deliver the sterile air in the second sterile air supply module to the stirring device, thereby discharging the finished product material remaining in the stirring device from the bottom and delivering it to the filling machine through the third delivery pipeline and the discharge pipeline.

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