Filling system, filling method therefor, and storage medium

Abstract

A filling system, a filling method therefor, and a storage medium. The filling system comprises: a first material tank (11) for accommodating a first material, a second material tank (21) for accommodating a second material, a mixing tank (30) for mixing the first material and the second material, a first conveying pipe (10) for connecting the first material tank (11) to the mixing tank (30), and a second conveying pipe (20) for connecting the second material tank (21) to the mixing tank (30), a pump (12) being provided on the first conveying pipe (10), and the pump (12) being configured to adjust the conveying proportion of first conveying pipe (10) and the second conveying pipe (20). By means of the provision of the pump on the first conveying pipe, online and continuous conveying and mixing of materials can be achieved, and the adjustment structure and the operation process are simplified.

Description

Filling system, filling method and storage medium

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] For all purposes, this application is based on and claims priority from Chinese patent application No. 202311123000.6, filed on September 1, 2023, entitled “Filling system and filling method thereof”, and the contents of the above-mentioned Chinese patent application disclosure are hereby incorporated by reference in their entirety as a part of this application. Technical Field

[0003] The present disclosure relates to the field of packaging manufacturing, and in particular to a filling system, a filling method and a storage medium thereof. Background Art

[0004] With market demand, people are looking to provide products that are made by mixing two materials together and then filling them, especially products that are made by mixing liquid materials with granular materials. Liquid materials include milk, juice, soy milk, and various beverages, and granular materials include fruit particles, nut particles, etc.

[0005] Summary of the Invention

[0006] Embodiments of the present disclosure provide a filling system, a filling method thereof, and a storage medium.

[0007] According to a first aspect of the present disclosure, a filling system is provided, comprising: a first silo configured to accommodate a first material; a second silo configured to accommodate a second material; a mixing tank configured to mix the first material and the second material; a first conveying pipeline configured to connect the first silo to the mixing tank; and a second conveying pipeline configured to connect the second silo to the mixing tank; wherein a pump is provided on the first conveying pipeline, and the pump is configured to adjust a conveying ratio between the first conveying pipeline and the second conveying pipeline.

[0008] In at least some embodiments, the first delivery pipeline and the second delivery pipeline have a common pipe section located on the upstream side of the mixing tank, and the filling system also includes a static mixer arranged on the common pipe section, wherein the static mixer is configured to mix the first material and the second material to form an initial mixed material, and the initial mixed material is subsequently provided to the mixing tank for further mixing.

[0009] In at least some embodiments, a feed valve is provided on the upstream side of the static mixer and at the junction of the first delivery line and the second delivery line, and the feed valve is configured to selectively allow only the first material, only the second material, or both the first material and the second material to be supplied to the static mixer.

[0010] In at least some embodiments, the filling system further comprises: a bypass line, the bypass line being arranged on the first conveying line and bypassing the pump, the bypass line being configured to selectively control the fluid in the first conveying line to flow through the pump; wherein the bypass line comprises an inlet end and an outlet end opposite to each other in its extension direction, and further comprises a first blocking valve arranged near the inlet end and a second blocking valve arranged near the outlet end, wherein the first blocking valve and the second blocking valve are configured to prevent the first material from entering the pipe section of the bypass line located between the first blocking valve and the second blocking valve.

[0011] In at least some embodiments, the filling system further includes: a compressed gas pipeline, which is connected to the mixing tank and is used to transport compressed gas, and a filter for filtering the compressed gas is provided on the compressed gas pipeline; a steam pipeline, which is used to transport steam; and a filtration and sterilization pipeline, which is connected between the steam pipeline and the compressed gas pipeline and is connected to the upstream side of the filter so that the steam for filtration enters the filter from the upstream side of the filter.

[0012] In at least some embodiments, a choke valve is provided on the compressed gas pipeline. The choke valve is located upstream of the filter and is configured to prevent the compressed gas from entering the filter.

[0013] In at least some embodiments, a drain valve is provided on the compressed gas pipeline. The drain valve is located on the downstream side of the filter and is configured to drain at least part of the waste liquid flowing out of the filter.

[0014] In at least some embodiments, the filling system further comprises: a filling pipeline, which is arranged on the downstream side of the mixing tank and has a filling valve on the filling pipeline, wherein the mixed material in the mixing tank is filled into the package through the filling valve.

[0015] In at least some embodiments, the filling system further comprises: a cleaning source for providing cleaning fluid; a vent line, wherein a first end of the vent line is selectively connected to the cleaning source, and a second end of the vent line is operably coupled to the filling valve, wherein when the mixing tank is cleaned, the second end is coupled to the filling valve via a coupler; and when the mixture is filled, the second end is decoupled from the filling valve.

[0016] In at least some embodiments, the filling system further comprises: a discharge pipeline, wherein at least one of the first delivery pipeline, the second delivery pipeline, the compressed gas pipeline, and the ventilation pipeline of the filling system is connected to the discharge pipeline, so that waste liquid or waste material in each pipeline is discharged to the outside of the filling system via the discharge pipeline.

[0017] In at least some embodiments, the filling system further includes: an agitator disposed in the mixing tank, for agitating the material in the mixing tank.

[0018] According to a second aspect of the present disclosure, a filling method for the aforementioned filling system is provided, comprising: supplying a first material in the first silo and a second material in the second silo to the mixing tank via the first conveying pipeline and the second conveying pipeline, respectively; and filling the mixed material in the mixing tank into a package; wherein, in the step of supplying the first material and the second material to the mixing tank, the filling method further comprises: adjusting the conveying ratio between the first material and the second material by the pump.

[0019] In at least some embodiments, in the step of supplying the first material and the second material to the mixing tank, the filling method further includes: mixing the first material and the second material in a static mixer to form an initial mixed material; and supplying the initial mixed material to the mixing tank.

[0020] In at least some embodiments, during the process of filling the mixed material in the mixing tank into the package, the filling method further includes: closing the first blocking valve and the second blocking valve on the bypass line of the first conveying line to prevent the first material from entering the pipe section of the bypass line located between the first blocking valve and the second blocking valve.

[0021] In at least some embodiments, before the first material in the first silo and the second material in the second silo are supplied to the mixing tank via the first conveying pipeline and the second conveying pipeline respectively, the filling method further includes: a steam pipeline provides steam for filtering; wherein, the steam for filtering is supplied to the upstream side of the filter of the compressed gas pipeline via the filtering and sterilizing pipeline and enters the filter to sterilize the filter.

[0022] In at least some embodiments, the filling method further comprises: discharging at least part of the waste liquid flowing out of the filter through a drain valve on the downstream side of the filter.

[0023] In at least some embodiments, after filling is stopped, the filling method further includes: connecting the second conveying pipeline to a cleaning source; and using a cleaning liquid provided by the cleaning source to clean the second conveying pipeline along the filling direction, wherein the remaining material in the second conveying pipeline is discharged to the outside of the filling system through the mixing tank.

[0024] In at least some embodiments, the above-mentioned filling method further includes: connecting a first end of the ventilation line to a cleaning source, and coupling a second end of the ventilation line to a filling valve; and cleaning the filling valve and the filling line with a cleaning liquid provided by the cleaning source, wherein the remaining material in the filling valve and the filling line is discharged into the mixing tank.

[0025] In at least some embodiments, after cleaning the filling valve and the filling pipeline, the filling method further includes: alternately performing at least one reverse cleaning and at least one forward cleaning on the filling system, wherein the reverse cleaning is cleaning in a direction opposite to the filling direction, and the forward cleaning is cleaning in the filling direction.

[0026] In at least some embodiments, the filling method further includes: replacing the first material with a third material; wherein, the replacing the first material with the third material includes: when the mixed material in the mixing tank is emptied, turning off the pump; starting the pump, emptying the remaining fruit particles in the first silo through the discharge pipeline, and adding the third material to the first silo until the third material is discharged from the discharge pipeline, then turning off the pump; passing the compressed gas in the compressed air pipeline into the common pipe section and the static mixer, so that the remaining materials in the common pipe section and the static mixer enter the discharge pipeline and push out the remaining third material in the discharge pipeline; until no third material is discharged from the discharge pipeline, the The second material in the second conveying pipeline enters the mixing tank through the common pipe section and the static mixer, and the common pipe section and the static mixer are flushed with the second material in the filling direction to flush the remaining material in the common pipe section and the static mixer into the mixing tank; the pump is started again to allow the third material to enter the first conveying pipeline, wherein all remaining material remaining in the upstream side pipe section of the discharge pipeline is pushed into the common pipe section and the static mixer by the third material; the common pipe section and the static mixer are flushed with the second material again in the filling direction to flush all remaining material in the common pipe section and the static mixer into the mixing tank; and the mixing tank is emptied.

[0027] According to a third aspect of the present disclosure, a filling system is provided, comprising: a processor; a memory comprising one or more computer program modules; wherein the one or more computer program modules are stored in the memory and configured to be executed by the processor, and the one or more computer program modules include instructions for implementing the aforementioned filling method.

[0028] According to a fourth aspect of the present disclosure, a computer-readable storage medium is provided, wherein non-transitory computer-readable instructions are stored in the computer-readable storage medium, and when a processor executes the computer-readable instructions, the aforementioned filling method can be implemented. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] In order to more clearly illustrate the technical solutions of the embodiments of the present disclosure, the drawings of the embodiments will be briefly introduced below. Obviously, the drawings in the following description only relate to some embodiments of the present disclosure, rather than limiting the present disclosure.

[0030] FIG1 is a schematic diagram of a filling system according to an embodiment of the present disclosure;

[0031] FIG2 is a schematic diagram of the filling process of the filling system of FIG1 ;

[0032] FIG3 is a schematic diagram of a forward cleaning process of the filling system of FIG1 ;

[0033] FIG4 is a schematic diagram of a reverse cleaning process of the filling system of FIG1 ;

[0034] FIG5 is a schematic diagram of the process of emptying the pipeline of the filling system of FIG1 ;

[0035] FIG6 is a schematic diagram of a process for sterilizing the filter of the filling system of FIG1 ;

[0036] FIG7 is a schematic flow chart of a filling method according to an embodiment of the present disclosure;

[0037] 8A and 8B are respectively a schematic diagram of the appearance and a schematic diagram of a cross-section of a filling valve assembly according to an embodiment of the present disclosure;

[0038] FIG9 is a partial schematic diagram of a filling valve assembly according to another embodiment of the present disclosure;

[0039] FIG10 is a perspective schematic diagram of a valve closing tool for closing the filling valve of the filling valve assembly of FIG9 ;

[0040] FIG11 is a schematic diagram of operating the valve stem of the filling valve of FIG9 using the valve closing tool of FIG10;

[0041] FIG12A is a schematic diagram of a filling system according to another embodiment of the present disclosure;

[0042] FIG12B is a partially enlarged schematic diagram of the bypass pipeline in FIG12A;

[0043] FIG13A is a schematic diagram of a partial process of a filling method according to another embodiment of the present disclosure;

[0044] FIG13B is a schematic diagram of another part of the process of the filling method according to another embodiment of the present disclosure;

[0045] FIG14 is a schematic diagram of the filling system of FIG12A during sterilization of the filter;

[0046] FIG15A is a schematic diagram of the filling system of FIG12A when discharging the remaining material from the second conveying pipeline;

[0047] FIG15B is a schematic diagram of the filling system of FIG12A after discharging the remaining material from the filling valve and the filling pipeline;

[0048] FIG16 is a schematic diagram of a reverse cleaning process of the filling system of FIG12A ;

[0049] FIG17 is a schematic diagram of the forward cleaning process of the filling system of FIG12A ;

[0050] 18A to 18E are schematic diagrams of the filling system of FIG. 12A at various steps when replacing the first material;

[0051] FIG. 19 is a schematic diagram of the process of emptying the pipeline of the filling system of FIG. 12A . DETAILED DESCRIPTION

[0052] To make the purpose, technical solutions, and advantages of the embodiments of the present disclosure more clear, the technical solutions of the embodiments of the present disclosure will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present disclosure. Obviously, the described embodiments are part of the embodiments of the present disclosure, not all of the embodiments. Based on the described embodiments of the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.

[0053] Unless otherwise defined, the technical or scientific terms used herein shall have the ordinary meaning understood by persons of ordinary skill in the field to which the invention belongs. The words "first", "second" and similar terms used in the specification and claims of this patent application do not indicate any order, quantity or importance, but are only used to distinguish different components. Words such as "include" or "comprise" and similar words mean that the elements or objects appearing before "include" or "comprise" include the elements or objects listed after "include" or "comprise" and their equivalents, and do not exclude other elements or objects. Words such as "connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0054] A known system for filling mixed materials includes a mixing tank connected to a liquid material delivery pipeline. The liquid material is delivered to the mixing tank via the delivery pipeline. The tank lid is then opened and another material is manually added to the mixing tank. The mixed material in the mixing tank is then filled into a package or container, which is then sealed to form a product.

[0055] In the known filling systems described above, two materials are separately added to a mixing tank and then mixed within it, which can easily lead to uneven mixing (e.g., stratification). Furthermore, manual addition of the other material to the mixing tank is required, preventing the online conveying and mixing of all materials. This operation is complex and time-consuming, and precision control is difficult. Manual addition of materials prevents continuous operation, resulting in reduced filling efficiency and, in other words, higher costs.

[0056] To this end, the present application proposes a filling system and a filling method and a storage medium, which can realize online and continuous conveying and mixing of materials and can simplify the adjustment structure and operation process.

[0057] According to an embodiment of the present disclosure, a filling system is provided, comprising a first silo, a second silo, a mixing tank, a first conveying pipeline, and a second conveying pipeline. The first silo is configured to hold a first material; the second silo is configured to hold a second material; the mixing tank is configured to mix the first and second materials; the first conveying pipeline is configured to connect the first silo to the mixing tank; the second conveying pipeline is configured to connect the second silo to the mixing tank; and a pump is provided on the first conveying pipeline, the pump being configured to adjust the delivery ratio between the first and second conveying pipelines.

[0058] In the filling system of the above-mentioned embodiment of the present disclosure, a pump is provided on the first conveying pipeline, and the conveying ratio between the first conveying pipeline and the second conveying pipeline can be adjusted by utilizing the pump, thereby adjusting the conveying ratio of the first material and the second material, thereby realizing online and continuous conveying and mixing of materials, and simplifying the adjustment structure and operation process.

[0059] The present disclosure is described below by way of specific embodiments. To keep the following description of the embodiments of the present disclosure clear and concise, detailed descriptions of known functions and components may be omitted. When any component of an embodiment of the present disclosure appears in more than one drawing, the component may be represented by the same reference numeral in each drawing.

[0060] FIG1 is a schematic diagram of a filling system according to an embodiment of the present disclosure. A filling system 100 according to an embodiment of the present disclosure will be described below with reference to FIG1 .

[0061] As shown in FIG1 , the filling system 100 includes a first conveying pipeline 10 for conveying a first material, a second conveying pipeline 20 for conveying a second material, a mixing tank 30 for mixing the first material and the second material, and a filling pipeline 40 for conveying or filling the mixed material.

[0062] The first conveying pipeline 10 connects the first silo 11 to the mixing tank 30. The first silo 11 is a first material source that provides or stores a first material, for example, various containers, tanks, storage devices, etc. The first material may be liquid or may contain particles.

[0063] A second conveying line 20 connects a second silo 21 to a mixing tank 30. The second silo 21 is a second material source that provides or stores a second material, such as various containers, tanks, storage devices, etc. The second material is different from the first material and can be liquid or contain particles.

[0064] The first conveying pipeline 10 and the second conveying pipeline 20 are arranged in parallel on the upstream side of the mixing tank 30. The first material and the second material, respectively conveyed through the first conveying pipeline 10 and the second conveying pipeline 20, can be conveyed to the mixing tank 30. The first conveying pipeline 10 and the second conveying pipeline 20 have a common pipe section 29 connected to the mixing tank 30. A valve 28 is provided at the confluence of the first conveying pipeline 10 and the second conveying pipeline 20. Valve 28 selectively allows only the first material, only the second material, or both the first material and the second material to be supplied to the mixing tank 30. In other words, the filling system 100 can fill only one material or a mixture of two materials.

[0065] For example, a pump 12 is provided on the first conveying pipeline 10. The type of pump 12 can be selected or determined based on the type of material to be conveyed. For example, when the first material contains a large number of particles, the pump 12 can be a rotor pump or a screw pump. For example, when the first material is in the form of a slurry (the amount of particles and liquid is relatively balanced or the content of particles is relatively low), the pump 12 can be a piston pump. For example, when the first material is in a liquid state, the pump 12 can be a reciprocating pump. The pump 12 is selected or configured to be able to adjust the conveying ratio between the first conveying pipeline 10 and the second conveying pipeline 20, that is, the conveying ratio of the first material to the second material.

[0066] In the disclosed embodiments, the pump 12 may be a pump capable of changing speed or direction. The delivery ratio of the first material to the second material may be adjusted by changing the speed or direction of the pump 12. For example, increasing the speed of the pump 12 may increase the delivery rate or ratio of the first material, and correspondingly decrease the delivery rate or ratio of the second material. For example, decreasing the speed of the pump 12 or rotating the pump 12 in the opposite direction may decrease the delivery rate or ratio of the first material, and correspondingly increase the delivery rate or ratio of the second material.

[0067] For example, the filling system 100 further includes a bypass line 13, which is disposed on the first delivery line 10 and bypasses the pump 12. In this way, materials or fluids such as cleaning fluids can be selectively passed through the pump 12 or not according to actual needs.

[0068] In Figure 1 , no pump is provided on the second delivery pipeline 20. In this case, the second delivery pipeline 20 is suitable for conveying liquid materials such as milk, soy milk, and juice. However, it should be understood that, depending on the type of second material to be conveyed (e.g., containing particles), a pump may also be provided on the second delivery pipeline 20. In the disclosed embodiment, a pump may be provided on at least one of the first delivery pipeline 10 and the second delivery pipeline 20.

[0069] The first material and the second material are respectively supplied to the mixing tank 30 via the first conveying pipeline 10 and the second conveying pipeline 20. In order to make the materials in the mixing tank 30 more uniformly mixed, an agitator 31 can also be provided. The agitator 31 has a stirring device 31a located in the mixing tank 30 for stirring the materials.

[0070] The first delivery line 10 and the second delivery line 20 can be connected to the side wall of the mixing tank 30 and arranged adjacent to the bottom of the mixing tank 30. The filling line 40 can be connected to the bottom of the mixing tank 30. The agitator 31 can be arranged on the top of the mixing tank 30. Such a configuration is conducive to the supply, stirring, mixing and filling of materials.

[0071] A filling line 40 is provided downstream of the mixing tank 30 and is provided with a filling valve 41. The material in the mixing tank 30 is filled into the package or container 1 via the filling line 40 and the filling valve 41. During filling, the filling valve 41 is opened to allow the material to be filled into the package or container 1. When filling is completed or if a malfunction occurs, the filling valve 41 is closed to prevent accidental leakage or dripping of the material.

[0072] For example, the filling system 100 may further include a compressed gas line 50. The compressed gas line 50 is connected to the mixing tank 30 and is used to supply compressed gas from a compressed gas source 51 to the mixing tank 30 for conveying and filling the material. The compressed gas line 50 may be connected to the top of the mixing tank 30. This allows compressed gas to be filled above the material, which facilitates conveying and filling the material via the filling line 40. The compressed gas line 50 may be provided with a filter 52. The filter 52 is used to filter the compressed gas to prevent impurities from entering the material in the mixing tank 30.

[0073] For example, the filling system 100 may further include a steam line 60. The steam line 60 is connected to a steam source 61 and is used to transport steam. A condenser fan 62 may be provided on the steam line 60. The steam is condensed into water when passing through the condenser fan 62. The condensed water can be supplied to the agitator 31 via the steam line 60 to provide a liquid seal to prevent leakage, cool the agitator 31, and / or provide lubrication.

[0074] For example, the filling system 100 further includes a sterilization filter line 70 that connects the steam source 61 to the filter 52. Referring to FIG1 , the sterilization filter line 70 can be connected between the compressed gas line 50 and the steam line 60. A valve 72 is provided on the sterilization filter line 70. The valve 72 can selectively allow steam to flow into the filter 52 to sterilize the filter 52.

[0075] For example, the filling system 100 may further include a vent line 80, which is selectively connected to the first silo 11 or the cleaning source 22. During the production process, the vent line 80 is connected to the first silo 11. When the pump 12 is running to transport the first material in the first silo 11, gas is introduced into the first silo 11 via the vent line 80 to prevent negative pressure from being generated in the first silo 11 and negatively affecting or hindering the transportation of the first material. When the filling system is reversely cleaned, the first end of the vent line 80 is selectively connected to the cleaning source 22, and the second end of the vent line 80 can be operably coupled to the filling valve 41 (as shown in Figures 3 to 6), for example, via a coupler 82, to reverse clean the filling valve 41. In Figure 1, the vent line 80 is decoupled from the filling valve 41.

[0076] Figure 2 is a schematic diagram of the filling process of the filling system of Figure 1. Figure 3 is a schematic diagram of the forward cleaning process of the filling system of Figure 1. Figure 4 is a schematic diagram of the reverse cleaning process of the filling system of Figure 1. Figure 5 is a schematic diagram of the process of emptying the pipeline of the filling system of Figure 1. Figure 6 is a schematic diagram of the process of sterilizing the filter of the filling system of Figure 1.

[0077] During filling, the vent line 80 is disconnected from the filling valve 41, as shown in Figures 1 and 2. During non-filling, for example, cleaning, the vent line 80 is connected to the filling valve 41, as shown in Figures 3 to 6. In this case, cleaning fluid or waste fluid can be transported via the vent line 80.

[0078] For example, the filling system 100 includes a discharge line 90. For example, the discharge line 90 includes a first discharge line 90a and a second discharge line 90b. Waste liquid or waste material in various components or lines of the filling system 100 can be discharged to the outside of the filling system 100 via the discharge line 90.

[0079] The vent line 80 can be connected to a discharge line 90, such as a first discharge line 90a. In this way, waste liquid or waste material (especially waste liquid or waste material from the conveying lines 10, 20 and the filling line 40) can be discharged via the vent line 80 and the first discharge line 90a, as shown in Figures 3 to 5.

[0080] The compressed gas line 50 can be connected to a discharge line 90, such as a second discharge line 90b. In this way, waste liquid or waste material (especially waste liquid or waste material from the mixing tank 30) can be discharged via the compressed gas line 50 and the second discharge line 90b, as shown in FIG4.

[0081] For example, the first delivery line 10 can be connected to the first discharge line 90a. This allows waste liquid or material to be discharged through the first delivery line 10 and the first discharge line 90a. The first delivery line 10 can be connected to the first discharge line 90a downstream of the pump 12 in the filling direction. A valve 15 is provided between the first delivery line 10 and the first discharge line 90a. Under the action of the pump 12, the valve 15 selectively allows the residual material or waste liquid in the first silo 11 to be discharged through the first delivery line 10 and the first discharge line 90a, as shown in Figure 5.

[0082] In the filling system of the present disclosure, at least one of the first conveying line, the second conveying line, and the filling line may be connected to a cleaning source to clean the mixing tank, the first conveying line, the second conveying line, and the filling line.

[0083] In the filling system 100 shown in Figure 1, the second conveying line 20 is connected to the cleaning source 22. In this way, the mixing tank 30 and the filling line 40 can be cleaned along the filling direction via the second conveying line 20 and the filling line 40 (as shown in Figure 3), which is referred to as forward cleaning herein.

[0084] For example, the vent line 80 can also be connected to the cleaning source 22 to clean the filling line 40 and the mixing tank 30 in the opposite direction of the filling direction via the vent line 80. Referring to Figure 1, the vent line 80 can be connected to the second conveying line 20 via the cleaning connecting line 95 and thus connected to the cleaning source 22. In this way, the filling line 40 and the mixing tank 30 can be cleaned in the opposite direction of the filling direction via the second conveying line 20, the cleaning connecting line 95, and the vent line 80 (as shown in Figure 4), which is referred to herein as reverse cleaning.

[0085] As described above, the filling system disclosed herein provides independent delivery pipelines for different materials in parallel, thereby enabling continuous online delivery, mixing, and filling. Pumps installed in the delivery pipelines can be used to adjust the material delivery ratio, thereby simplifying the adjustment structure and process and thus achieving lower costs.

[0086] The filling system 100 shown in FIG1 is particularly suitable for conveying a material containing particles via a first conveying pipeline and conveying a liquid material via a second conveying pipeline. However, it should be understood that the filling system according to the present disclosure should not be limited to the specific example shown in FIG1 , but can be modified as long as it can achieve the functions described herein. For example, various fluid devices or components for sensing, regulating, reversing, and controlling can be provided on each pipeline as needed. For example, a flow meter and / or a pressure reducing valve can be provided on the filling pipeline. For example, a pressure sensor and a pressure regulating device can be provided on the compressed gas pipeline.

[0087] Fig. 2 is a schematic diagram of the filling process of the filling system 100 of Fig. 1. The filling process of the filling system 100 will be described below with reference to Fig. 2 .

[0088] For example, referring to FIG2 , during filling, pump 12 is started and valve 14 on bypass line 13 is closed. The first material in first silo 11 enters first conveying line 10 under the action of pump 12. Valve 15 is controlled or switched to allow the first material to be supplied to mixing tank 30 along first conveying line 10, but does not allow the material to flow into first discharge line 90a.

[0089] The valve 25 on the second delivery line 20 is controlled or switched to allow the second material to be supplied to the mixing tank 30 along the second delivery line 20, but does not allow the second material to flow into the cleaning connecting line 95. The supply valve 28 is controlled or switched to allow both the first material and the second material to be delivered to the mixing tank 30 via the common pipe section 29.

[0090] In the mixing tank 30, the first material and the second material are uniformly mixed under the action of the stirring device 31a of the stirrer 31. At the same time, steam is transported through the condensing fan 62 via the steam line 60, and condensed water from the condensing fan 62 is supplied to the stirrer 31 to liquid-seal, cool, and lubricate the stirrer during operation.

[0091] Compressed gas is supplied to the mixing tank 30 via the compressed gas line 50, so that the material in the mixing tank 30 is under a predetermined pressure. During this time, the valve 72 is controlled or switched to allow the compressed gas to flow along the compressed gas line 50 toward the mixing tank 30, but does not allow the compressed gas line 50 to communicate with the filtration and sterilization line 70 and the steam line 60. In addition, the valve 54 is controlled or switched to allow the compressed gas to flow along the compressed gas line 50 toward the mixing tank 30, but does not allow the compressed gas to be discharged through the second discharge line 90b.

[0092] Under the pressure of the compressed gas and the gravity of the material itself, the material in the mixing tank 30 is transported to the filling pipeline 40. Then, the filling valve 41 is opened, and the mixed material is filled into the package or container 1 via the filling pipeline 40.

[0093] During the filling process, the vent line 80 is disconnected from the filling valve 41, which is then engaged with the package or container 1. At this point, clean gas is introduced into the first silo 11 via the vent line 80. To this end, valve 84 is controlled or switched to allow the vent line 80 to communicate with the first silo 11, but not to connect to the purge connection line 95. Valve 92 on the first discharge line 90a is closed to prevent the vent line 80 from connecting to the first discharge line 90a.

[0094] FIG2 illustrates the process of mixing and filling two materials. However, it should be understood that, depending on the need, only one material can be filled through the first or second delivery line. Accordingly, the valve can be controlled to connect one delivery line while closing the other.

[0095] Fig. 3 is a schematic diagram of the forward cleaning process of the filling system 100 of Fig. 1. The forward cleaning process of the filling system 100 will be described below with reference to Fig. 3 .

[0096] After the filling is completed, the first conveying pipeline and the second conveying pipeline need to be cleaned. Referring to Figure 3, when the second conveying pipeline 20, the mixing tank 30, the filling pipeline 40 and the filling valve 41 need to be cleaned, the process of supplying the cleaning liquid is similar to the process of supplying the second material. The difference is that the vent line 80 is coupled to the filling valve 41, in particular, the filling side of the filling valve 41. After cleaning the filling valve 41, the cleaning liquid flows into the vent line 80 and is discharged through the first discharge line 90a. To this end, the valve 92 is opened, and the valve 84 is controlled or switched to connect the vent line 80 with the first discharge line 90a, but does not allow the vent line 80 to connect with the first silo 11 and the cleaning connecting line 95.

[0097] When cleaning of first delivery line 10 is required, supply valve 28 is controlled or switched to connect second delivery line 20 to first delivery line 10, thereby allowing cleaning fluid to flow from second delivery line 20 through supply valve 28 into first delivery line 10. The state of valve 15 can be the same as that shown in FIG2 , i.e., the same as during filling. Valve 14 is opened to allow cleaning fluid to flow through bypass line 13 and into first silo 11. The cleaning fluid can bypass (not pass through) pump 12. After cleaning first silo 11, the waste fluid can be further discharged via vent line 80 and first discharge line 90a.

[0098] During the cleaning period, the supply of compressed gas to the mixing tank 30 may be stopped. In the case where the agitator 31 is stopped, the supply of condensed water to the agitator 31 may be stopped.

[0099] Fig. 4 is a schematic diagram of a reverse cleaning process of the filling system 100 of Fig. 1. The reverse cleaning process of the filling system 100 will be described below with reference to Fig. 4 .

[0100] 4 , during the reverse cleaning process, cleaning fluid is supplied to the vent line 80, and then caused to flow through the filling valve 41 and the mixing tank 30 via the filling line 40 in a direction opposite to the filling direction. To this end, valve 25 is controlled or switched so that the cleaning source 22 is connected to the cleaning communication line 95, and valve 84 is controlled or switched so that the cleaning communication line 95 is connected to the filling valve 41 via the vent line 80.

[0101] After the mixing tank 30 is filled with cleaning liquid, the cleaning liquid is discharged through the compressed gas pipeline 50 and the second discharge pipeline 90b. To this end, the valve 54 is controlled or switched so that the mixing tank 30 is connected to the second discharge pipeline 90b via the compressed gas pipeline 50.

[0102] The cleaning liquid in the mixing tank 30 can also flow through the first delivery pipeline 10 and the first silo 11, and then be discharged into the first discharge pipeline 90a. The supply valve 28 can be controlled or switched to connect the mixing tank 30 with the first delivery pipeline 10, but not to allow the mixing tank 30 to connect to the second silo 21. The state of the valves 14, 15 and 92 can be the same as the state shown in Figure 3.

[0103] The forward cleaning shown in FIG. 3 and the reverse cleaning shown in FIG. 4 may be performed selectively, or may be performed alternately for a predetermined number of times, which may be determined according to actual needs.

[0104] FIG5 is a schematic diagram illustrating the process of emptying the pipelines of the filling system 100 of FIG1 . The process of emptying the pipelines of the filling system 100 will be described below with reference to FIG5 . After cleaning or filling, the fluid (waste liquid or waste material) in each pipeline, tank, or silo needs to be emptied or discharged.

[0105] 5 , the vent line 80 is coupled to the filling valve 41. At this time, the fluid in the mixing tank 30 can be discharged through the filling line 40, the filling valve 41, the vent line 80 and the first discharge line 90a.

[0106] Furthermore, valve 15 is controlled or switched to connect first silo 11 to first discharge line 90a. This allows the fluid in first silo 11 to be discharged through first delivery line 10 and first discharge line 90a. During this process, pump 12 can be activated, as in the case of delivering the first material, while valve 14 on bypass line 13 is closed.

[0107] Fig. 6 is a schematic diagram of a process for sterilizing the filter 52 of the filling system 100 of Fig. 1. The filter sterilization process of the filling system 100 will be described below with reference to Fig. 6 .

[0108] 6 , a valve 72 is controlled or switched so that steam can be supplied to the filter 52 via the filter sterilization line 70 for sterilization and then discharged.

[0109] Fig. 7 is a flow chart of a filling method according to an embodiment of the present disclosure. The filling method S10 will be described below in conjunction with the filling system 100 shown in Fig. 1 .

[0110] Before filling, the filling system 100 may be sterilized (step S11). The sterilization of the filter 52 using steam is described above with reference to FIG6 . It should be understood that other parts of the filling system 100 may also be sterilized, for example, using hot water to sterilize various pipelines, which will not be described in detail herein.

[0111] During filling, in step S13, materials are supplied to the mixing tank 30. The first material in the first silo 11 and / or the second material in the second silo 21 can be selectively supplied to the mixing tank 30 via the first conveying pipeline 10 and / or the second conveying pipeline 20 as needed.

[0112] When filling both the first material and the second material, the delivery ratio between the first material and the second material can be adjusted with the aid of pump 12 (step S14). In one example, the delivery ratio of the first material can be increased by operating pump 12 in the filling direction, or the delivery ratio of the second material can be increased by operating pump 12 in the direction opposite to the filling direction. In another example, the delivery ratio of the first material can be increased by increasing the speed of pump 12, or the delivery ratio of the second material can be increased by decreasing the speed of pump 12.

[0113] When the first material is supplied via the first conveying pipeline 10 , the first silo 11 can be ventilated. As described above with reference to FIG2 , the clean gas in the filling space is supplied to the first silo 11 via the venting pipeline 80 .

[0114] In step S15, the material supplied to the mixing tank 30 is stirred by the stirrer 31, thereby uniformly mixing the materials. At the same time, the steam is passed through the condensation fan 62 to form condensed water, and the condensed water is supplied to the stirrer 31. In the case of supplying and filling only a single material, step S15 can be omitted.

[0115] Optionally, according to filling requirements, compressed gas may be supplied to the mixing tank 30 to provide a required pressure (step S12 ).

[0116] In step S16 , the filling valve 41 is opened, and the material in the mixing tank 30 is filled into the package or container 1 via the filling pipe 40 and the filling valve 41 .

[0117] Steps S12 to S16 may refer to the filling process described above with respect to FIG. 2 .

[0118] After the filling is completed, the filling system 100 can be cleaned (step S17). In this step, the forward cleaning shown in Figure 3 and / or the reverse cleaning shown in Figure 4 can be selectively performed.

[0119] After cleaning or filling, step S18 may be performed to empty or discharge the fluid (eg, cleaning fluid or material) in each pipeline. This step may be described with reference to FIG. 5 .

[0120] It should be understood that the filling method described with reference to FIG. 7 is merely exemplary. The filling method according to the present disclosure is not limited to the specific example shown in FIG. 7 and can be modified as needed. For example, the order of executing the various steps of the filling method can be changed, unless otherwise specified. For example, one or more steps can be added or omitted as needed.

[0121] 8A and 8B are respectively a schematic diagram of the appearance and a schematic diagram of a cross section of a filling valve assembly according to an embodiment of the present disclosure. The filling valve assembly 200 will be described below with reference to FIG8A and FIG8B .

[0122] 8A and 8B , the filling valve assembly 200 includes a filling valve 210, a motor 220, and a cylinder 230. The motor 220 is connected to the filling valve 210 via the cylinder 230, and is used to drive the filling valve 210 to be in an open or closed state.

[0123] The filling valve 210 includes a valve body 211 and a valve stem 212. The valve body 211 defines a hollow cavity 211a for accommodating the valve stem 212 and a valve seat 211b that engages the end of the valve stem 212. Driven by a motor 220, the valve stem 212 is movable relative to the valve seat 211b. When the valve stem 212 rests against the valve seat 211b, the filling valve 210 closes, preventing material from flowing through the filling valve 210. When the valve stem 212 moves away from the valve seat 211b, the filling valve 210 opens, allowing material to flow through the filling valve 210.

[0124] The motor 220 is, for example, a servo motor to improve control accuracy. The motor 220 has an output shaft 221. The output shaft 221 can be connected to the valve stem 212. For example, the output shaft 221 can be connected to the valve stem 212 via a transmission mechanism, so that the rotation of the output shaft 221 is converted into the up and down movement of the valve stem 212.

[0125] The motor 220 is supported or mounted so as to be movable relative to the valve body 211. If the filling valve 210 fails to close or closes loosely due to a malfunction or wear, material may flow or leak from the filling valve 210, which is undesirable. In this case, the motor 220 can move the valve stem 212 toward the valve seat 211b until the valve stem 212 abuts the valve seat 211b, thereby reliably closing the filling valve 210.

[0126] 8A and 8B , the motor 220 is movably supported by a cylinder 230. The piston of the cylinder 230 can move under pneumatic pressure, thereby driving the motor 220 and the valve stem 212 to move together.

[0127] It should be understood that the filling valve assembly 200 according to the present disclosure should not be limited to the examples shown in FIG. 8A and FIG. 8B , but may be modified as long as the motor and the valve stem can be moved toward the valve seat together.

[0128] The following describes a filling valve assembly 300 according to another embodiment of the present disclosure, as well as a valve closing tool for closing the filling valve of the filling valve assembly 300 and its operation, with reference to Figures 9 to 11. Figure 9 is a partial schematic diagram of a filling valve assembly according to another embodiment of the present disclosure. Figure 10 is a perspective schematic diagram of a valve closing tool 400 for closing the filling valve of the filling valve assembly 300 of Figure 9. Figure 11 is a schematic diagram of using the valve closing tool of Figure 10 to operate the valve stem of the filling valve of Figure 9.

[0129] As shown in FIG9 , the filling valve assembly 300 includes a coupling 330. The coupling 330 couples a drive rod (or transmission rod) 321 to the valve stem 312. The drive rod (or transmission rod) 321 is connected to a motor 320. In the example of FIG9 , the motor 320 is fixedly supported or mounted, i.e., fixed relative to the valve seat of the filling valve. When the filling valve needs to be manually closed, the coupling 330 is disassembled, and then only the valve stem 312 is driven to move toward the valve seat to close the filling valve.

[0130] 10 , the valve closing tool 400 includes a base 410 , a movable member 420 , and a supporting member 430 .

[0131] The base 410 is configured to abut against a valve stem-side structure or a drive rod-side structure. The "valve stem-side structure" herein refers to a structure on the valve stem or a structure associated with the valve stem that can move with the valve stem. Similarly, the "drive rod-side structure" herein refers to a structure on the drive rod or a structure associated with the drive rod that can move with the drive rod.

[0132] In the example shown in Figure 10 , the base 410 has a U-shape. It should be understood that the structure of the base 410 should not be limited to the specific example shown in Figure 10 , but can be changed according to the structure of the filling valve assembly as long as it can achieve the functions described herein.

[0133] The movable member 420 is connected to the base 410 in a movably manner. In the example shown in Figure 10, the movable member 420 is connected to the base 410 in a threaded manner. The movable member 420 includes a rod 422 having a thread, and the base 410 has a threaded hole 412 for threaded engagement with the rod 422. Through the threaded engagement, the rotation of the rod 422 relative to the threaded hole 412 is converted into the up and down movement of the movable member 420. There can be multiple movable members 420. In the example shown in Figure 10, there are two movable members 420. When the valve closing tool is placed on the filling valve assembly 300 (as shown in Figure 11), the two movable members 420 are symmetrically located on both sides of the valve stem 312.

[0134] The support member 430 is located on the side of the movable member 420 opposite to the base 410. Thus, when the movable member 420 moves, the distance between the support member 430 and the base 410 increases or decreases. The movable member 420 may have a head 424 for abutting against the support member 430 and facilitating tool operation.

[0135] In a configuration where the base 410 abuts against the valve stem, the support member 430 is provided on the drive rod side to form a drive rod side configuration. In this configuration, when the head 424 of the movable member 420 is operated to rotate the movable member 420, the distance between the support member 430 and the base 410 increases, causing the valve stem 312 to move toward the valve seat, thereby closing the filling valve.

[0136] In the case of a structure in which the base 410 abuts against the drive rod side, as shown in Figure 11, the support member 430 is arranged on the valve stem side to form a structure on the valve stem side. In this case, when the head 424 of the movable member 420 is operated to rotate the movable member 420, the distance between the support member 430 and the base 410 is increased, so that the valve stem 312 moves toward the valve seat (downward in the figure) to close the filling valve. Referring to Figure 11, the support member 430 is in the shape of an elongated rod. The valve stem 312 is provided with a hole 312a for receiving the support member 430. When the support member 430 is inserted into the hole 312a, the support member 430 has a portion extending from the hole 312a for supporting the movable member 420.

[0137] In order to facilitate the operation of the valve closing tool 400 and the coupling 330, the housing or cover 350 outside the coupling 330 can be in the form of a leg.

[0138] It should be understood that the structure of the filling valve assembly 300 and the valve closing tool 400 is not limited to the specific examples shown in Figures 9 to 11, but can be modified as long as it can move the valve stem away from the motor and toward the valve seat. For example, the support member can be formed as an integral part with the valve stem or the drive rod.

[0139] FIG12A is a schematic diagram of a filling system according to another embodiment of the present disclosure. A filling system 1000 according to another embodiment of the present disclosure will be described below with reference to FIG12A .

[0140] For example, as shown in FIG12A , a filling system 1000 includes a first silo 11 and a second silo 21. The first silo 11 is configured to hold a first material. The second silo 21 is configured to hold a second material. The filling system 100 also includes a first delivery pipeline 10 and a second delivery pipeline 20. The first delivery pipeline 10 is configured to connect the first silo 11 to a mixing tank 30 for delivering the first material to the mixing tank 30. The second delivery pipeline 20 is configured to connect the second silo 21 to the mixing tank 30 for delivering the second material to the mixing tank 30.

[0141] For example, a pump 12 is provided on the first conveying pipeline 10. The pump 12 is configured to adjust the conveying ratio between the first conveying pipeline 10 and the second conveying pipeline 20, that is, the conveying ratio of the first material to the second material. The type of pump 12 can be selected or determined based on the type of material to be conveyed. For example, when the first material contains a large number of particles, the pump 12 can be a rotor pump or a screw pump. For example, when the first material is in the form of a slurry (the amount of particles and liquid is relatively balanced or the content of particles is relatively low), the pump 12 can be a piston pump. For example, when the first material is in a liquid state, the pump 12 can be a reciprocating pump.

[0142] In the disclosed embodiments, the pump 12 may be a pump capable of changing speed or direction. The delivery ratio of the first material to the second material may be adjusted by changing the speed or direction of the pump 12. For example, increasing the speed of the pump 12 may increase the delivery rate or ratio of the first material, and correspondingly decrease the delivery rate or ratio of the second material. For example, decreasing the speed of the pump 12 or rotating the pump 12 in the opposite direction may decrease the delivery rate or ratio of the first material, and correspondingly increase the delivery rate or ratio of the second material.

[0143] For example, the first delivery pipeline 10 and the second delivery pipeline 20 have a common pipe section 29 located upstream of the mixing tank 30. The filling system 1000 also includes a static mixer 291 disposed on the common pipe section 29. The static mixer 291 is configured to mix the first material and the second material to form an initial mixed material, which is then provided to the mixing tank 30 for further mixing. Providing the static mixer 291 on the common pipe section 29 enables pre-mixing of the two materials, thereby further improving the uniformity of the mixing of the two materials in the mixing tank and enhancing the quality of the filled product.

[0144] For example, a feed valve 28 is provided on the upstream side of the static mixer 291 and at the junction of the first delivery pipeline 10 and the second delivery pipeline 20. The feed valve 28 is configured to selectively allow only the first material, only the second material, or both the first material and the second material to be supplied to the static mixer 291. Therefore, by providing the feed valve 28, the type of material entering the static mixer 291 can be effectively controlled, thereby facilitating mixing in the static mixer.

[0145] For example, filling system 1000 further includes a bypass line 13, which is disposed on first delivery line 10 and bypasses pump 12. Bypass line 13 is configured to selectively control the flow of fluid in first delivery line 10 through pump 12. Figure 12B is a partially enlarged schematic view of the bypass line of Figure 12A. As shown in Figure 12B, for example, bypass line 13 includes an inlet end 13a and an outlet end 13b that are opposed to each other along its extension direction, as well as a first barrier valve V1 positioned proximate inlet end 13a and a second barrier valve V2 positioned proximate outlet end 13b. The first barrier valve V1 and the second barrier valve V2 are configured to prevent the first material from entering the section of bypass line 13 between the first barrier valve V1 and the second barrier valve V2, thereby preventing the first material from being retained between the first and second barrier valves V1 and V2. This prevents waste of the first material and contamination of the bypass line.

[0146] For example, the filling system 1000 also includes: a compressed gas pipeline 50, a steam pipeline 60 and a filtration and sterilization pipeline 70. The compressed gas pipeline 50 is connected to the mixing tank 30 and is used to transport compressed gas. The compressed gas pipeline 50 is provided with a filter 52 for filtering the compressed gas. The steam pipeline 60 is used to transport steam. The steam pipeline 60 is connected to a steam source 61 and is used to transport steam. A condensing fan 62 may be provided on the steam pipeline 60. Steam is condensed into water when flowing through the condensing fan 62. The condensed water can be supplied to the agitator 31 via the steam pipeline 60 to provide a liquid seal for the agitator 31 to prevent leakage, cool it, and / or provide lubrication. The filtration and sterilization pipeline 70 is connected between the steam pipeline 60 and the compressed gas pipeline 50 and is connected to the upstream side of the filter 52 so that the steam for filtering enters the filter 52 from the upstream side of the filter 52.

[0147] In Figure 1, the filtration and sterilization pipeline 70 is connected to the downstream side of the filter 52, which may cause the following problems: since the filtered water discharged from the filter 52 contains scale, after a period of time, the scale may block the discharge port of the filter 52, resulting in the inability of the filtration steam to enter the filter 52 from the downstream side, thereby making it impossible to disinfect and sterilize the filter.

[0148] In contrast, the filtration and sterilization pipeline 70 in FIG12A is connected to the upstream side of the filter 52, and the filtration steam can enter the filter through the upstream side of the filter 52. In this way, even if the discharge port of the filter 52 is blocked by filter scale, it will not affect the filtration steam from entering the filter 52, thereby ensuring the normal disinfection and sterilization of the filter 52.

[0149] For example, a choke valve V3 is provided on the compressed gas pipeline 50. The choke valve V3 is located upstream of the filter 52 and is configured to prevent the compressed gas from entering the filter 52. When the filter 52 is sterilized using filtered steam, the choke valve V3 can be controlled to prevent the compressed gas from the compressed gas source 51 from entering the filter 52, thereby further preventing the compressed gas from affecting the sterilization effect of the filter 52.

[0150] For example, a drain valve V4 is provided on the compressed gas pipeline 50. This valve is located downstream of the filter 52 and is configured to drain at least a portion of the waste liquid flowing out of the filter 52. This allows the waste liquid in the filter 52 to be quickly discharged from the filling system. For example, a drain valve V5 is also provided below the filter 52. Another portion of the waste liquid in the filter 52 can be discharged through the drain valve V5, thereby allowing the waste liquid in the filter 52 to be discharged from the filling system more quickly and improving the waste liquid discharge efficiency of the filter.

[0151] For example, as shown in FIG12A , the compressed gas pipeline 50 includes a first pipe section p1 and a second pipe section p2 connected to the liquid discharge valve V4, wherein the first pipe section p1 is located between the liquid discharge valve V4 and the valve 54, and the second pipe section p2 is located between the liquid discharge valve V4 and the filter 52. In some cases, liquid in both the first pipe section p1 and the second pipe section p2 is discharged from the liquid discharge valve V4. The valve 54 is controlled or switched to allow the compressed gas to flow along the compressed gas pipeline 50 toward the mixing tank 30, but does not allow the compressed gas to be discharged through the second discharge pipeline 90b.

[0152] For example, the filling system 1000 further includes a filling pipeline 40 , which is disposed on the downstream side of the mixing tank 30 and has a filling valve 41 disposed on the filling pipeline 40 . The mixed material in the mixing tank 30 is filled into the package through the filling valve 41 .

[0153] For example, filling system 1000 further includes a cleaning source 22 and a vent line 80, wherein the cleaning source 22 can provide a cleaning fluid. A first end of the vent line 80 is selectively connected to the cleaning source 22, and a second end of the vent line 80 is operably coupled to the filling valve 41. When cleaning the filling valve or mixing tank 30, the second end is coupled to the filling valve 41 via a coupler 82; when filling the mixed material, the second end is decoupled from the filling valve 41. For example, the vent line 80 can be connected to the second delivery line 20, and thus to the cleaning source 22, via a cleaning connection line 95. In this manner, the filling line 40 and mixing tank 30 can be cleaned in a direction opposite to the filling direction via the second delivery line 20, the cleaning connection line 95, and the vent line 80. For example, the valve 25 on the second delivery line 20 can be controlled or switched to allow the second material to be supplied to the mixing tank 30 along the second delivery line 20, but prevent the second material from flowing into the cleaning connection line 95.

[0154] For example, the filling system 1000 further includes a discharge pipeline 90, to which at least one of the first delivery pipeline 10, the second delivery pipeline 20, the compressed gas pipeline 50, and the venting pipeline 80 is connected, so that waste liquid or waste material in each component or pipeline is discharged to the outside of the filling system 1000 via the discharge pipeline 90. For example, the discharge pipeline 90 includes a first discharge pipeline 90a and a second discharge pipeline 90b.

[0155] For example, the filling system 1000 further includes an agitator 31 disposed in the mixing tank 30 for agitating the materials in the mixing tank 30. The agitator 31 includes a stirring device 31a, under the action of which the first material and the second material are more evenly mixed.

[0156] According to another embodiment of the present disclosure, a filling method for the aforementioned filling system is also provided. FIG13A is a schematic diagram of a partial process flow of the filling method according to another embodiment of the present disclosure. FIG13B is a schematic diagram of another partial process flow of the filling method according to another embodiment of the present disclosure. Referring to FIG13A and FIG13B, the filling method of the filling system 1000 of FIG12A includes:

[0157] Step S21: supplying the first material in the first silo 11 and the second material in the second silo 21 to the mixing tank 30 via the first conveying pipeline 10 and the second conveying pipeline 20 respectively;

[0158] Step S22: filling the mixed material in the mixing tank 30 into the package;

[0159] In the step S21 of supplying the first material and the second material to the mixing tank 30, the filling method further includes:

[0160] Step S211 : adjusting the delivery ratio between the first material and the second material by the pump 12 .

[0161] In the filling method of the above-mentioned embodiment of the present disclosure, the conveying ratio between the first material and the second material is adjusted by a pump, which not only enables online and continuous conveying and mixing of materials, but also simplifies the adjustment structure and operation process.

[0162] For example, in step 21 of supplying the first material and the second material to the mixing tank 30, the filling method further includes:

[0163] Step S212: the first material and the second material are mixed in the static mixer 291 to form an initial mixed material; and

[0164] Step S213: supplying the initial mixed material to the mixing tank 30.

[0165] 12A , in this embodiment, before entering the mixing tank 30 , the first material and the second material are mixed using a static mixer 291 , thereby achieving pre-mixing of the two materials, thereby further improving the uniformity of the two materials when mixed in the mixing tank and improving the quality of the filled product.

[0166] For example, in step S22 of filling the mixed material in the mixing tank 30 into the package, the filling method further includes:

[0167] Step S220: Close the first barrier valve V1 and the second barrier valve V2 on the bypass line 13 of the first conveying line 10 to prevent the first material from entering the section of the bypass line 13 between the first barrier valve V1 and the second barrier valve V2. This prevents the first material from being retained between the first barrier valve V1 and the second barrier valve V2, thus preventing waste of the first material and contamination of the bypass line.

[0168] For example, before the above step S21, the above filling method further includes:

[0169] Step S31 : the steam line 60 provides steam for filtering; wherein the steam for filtering is supplied to the upstream side of the filter 52 of the compressed gas line 50 via the filtering and sterilizing line 70 and enters the filter 52 to sterilize the filter 52 .

[0170] Figure 14 is a schematic diagram of the filling system of Figure 12A during filter sterilization. Since filter 52 must be sterilized with steam and cannot be sterilized with hot water, valve 54 is switched to disconnect the pipe sections on the left and right sides of valve 54 during sterilization (i.e., ports 1 and 3 are connected, while port 2 is blind). Simultaneously, filtering steam provided by steam line 60 enters the upstream side of filter 52 via filter sterilization line 70, thereby entering filter 52 for sterilization. Finally, the waste liquid is discharged through drain valves V4 and V5.

[0171] Compared to FIG1 , in which the filtration steam is supplied to the downstream side of the filter 52 via the filtration and sterilization pipeline 70, in this embodiment, the filtration steam can enter the filter through the upstream side of the filter 52. In this way, even if the discharge port of the filter 52 is blocked by filter scale, it will not affect the filtration steam from entering the filter 52, thereby ensuring normal disinfection and sterilization of the filter 52.

[0172] For example, the above filling method further includes:

[0173] Step S32 : At least part of the waste liquid flowing out of the filter 52 is discharged through the drain valve V4 on the downstream side of the filter 52 .

[0174] This allows waste liquid in filter 52 to be quickly discharged from the filling system. If a drain valve V5 is provided below filter 52, another portion of waste liquid in filter 52 can also be discharged from drain valve V5, allowing waste liquid in filter 52 to be discharged from the filling system even more quickly, thereby improving the efficiency of waste liquid discharge from the filter. Furthermore, for example, the filling method may further include draining liquid from both first pipe segment p1 and second pipe segment p2 from drain valve V4, thereby allowing waste liquid in both pipe segments to be quickly discharged from the filling system.

[0175] Referring to Figure 12A, after the filling is completed, some mixed materials still remain in the mixing tank 30 of the filling system 1000 (there are also residual mixed materials in the static mixer 291, common pipe section 29 and other components or pipe sections). If the filling system 1000 is directly cleaned as a whole (including forward and reverse cleaning), especially reverse cleaning, it is easy for particles in the mixed materials (such as fruit grains) to be washed to the top of the mixing tank 30. Since the top structure of the mixing tank 30 is relatively special, dirt is easily formed on the top, which is not easy to clean.

[0176] To this end, in the embodiment of the present disclosure, before the entire filling system is cleaned, a local pre-cleaning is first performed. For example, after stopping filling, the above filling method further includes: performing a local pre-cleaning of the filling system, and the pre-cleaning may include:

[0177] Step S41: Connect the second conveying pipeline 20 to the cleaning source 22; use the cleaning liquid provided by the cleaning source 22 to clean the second conveying pipeline 20 along the filling direction, wherein the remaining material in the second conveying pipeline 20 is discharged to the outside of the filling system 1000 through the mixing tank 30.

[0178] Figure 15A is a schematic diagram of the filling system of Figure 12A during the discharge of residual material from the second delivery pipeline. For example, as shown in Figure 15A , valves 16, 17, and 54 are controlled or switched (supply valve 28 is controlled or switched to prevent cleaning fluid from entering the first delivery pipeline 10), connecting the second delivery pipeline 20 to the cleaning source 22. Cleaning fluid (e.g., milk) provided by cleaning source 22 enters the second delivery pipeline 20 along the filling direction and sequentially passes through static mixer 291 and common pipe section 29. During this process, the cleaning fluid flushes the remaining mixed material in static mixer 291 and common pipe section 29 into mixing tank 30 and is discharged from the top of mixing tank 30 to the exterior of filling system 1000. After this pre-cleaning process, no more mixed material remains in the second delivery pipeline 20, including static mixer 291 and common pipe section 29.

[0179] For another example, after stopping the filling, the filling method further includes:

[0180] Step S42: Connect the first end of the ventilation line 80 to the cleaning source 22, and couple the second end of the ventilation line 80 to the filling valve 41; use the cleaning liquid provided by the cleaning source 22 to clean the filling valve 41 and the filling line 40, wherein the remaining material in the filling valve 41 and the filling line 40 is discharged into the mixing tank 30.

[0181] Figure 15B is a schematic diagram of the filling system of Figure 12A , which is discharging residual material from the filling valves and filling lines. For example, as shown in Figure 15B , valves 16, 25, two filling valves 41, and valve 54 are opened, the first end of the vent line 80 is connected to the cleaning source 22 via the cleaning connecting line 95, and the second end of the vent line 80 is coupled to the filling valve 41. Cleaning liquid (e.g., milk) provided by the cleaning source 22 sequentially passes through the cleaning connecting line 95, the vent line 80, the filling valve 41, and the filling line 40. During this process, the cleaning liquid flushes the remaining mixed material in the filling valve 41 and filling line 40 into the mixing tank 30 and is discharged outside the filling system 1000 through the top of the mixing tank 30. After the above pre-cleaning, no more mixed material is left in the filling valve 41 and filling line 40.

[0182] In the above-described filling method, the order of steps S41 and S42 can be interchanged, and this is not limited in the present embodiment. Furthermore, during the above-described pre-cleaning process, at least one of steps S41 and S42 can be performed. For example, only step S41, only step S42, or both steps S41 and S42 can be performed, and this is not limited in the present embodiment. Furthermore, to enhance the effectiveness of the pre-cleaning process, each step can be repeated two or more times, and this is not limited in the present embodiment.

[0183] For example, after pre-cleaning, the filling method also includes:

[0184] Step S51: alternately performing at least one reverse cleaning and at least one forward cleaning on the filling system 1000, wherein the reverse cleaning is cleaning in a direction opposite to the filling direction, and the forward cleaning is cleaning in the filling direction.

[0185] Figure 16 is a schematic diagram of the reverse cleaning process of the filling system of Figure 12A. Referring to Figure 16, during the reverse cleaning process, cleaning fluid is supplied to the vent line 80 and then flows through the filling line 40, through the filling valve 41, and into the mixing tank 30 in a direction opposite to the filling direction. To this end, valve 25 is controlled or switched so that the cleaning source 22 is connected to the cleaning connecting line 95, and then to the filling valve 41 via the cleaning connecting line 95 and the vent line 80. After the mixing tank 30 is filled with cleaning fluid, the cleaning fluid is discharged via the compressed gas line 50 and the second discharge line 90b. To this end, valve 54 is controlled or switched so that the mixing tank 30 is connected to the second discharge line 90b via the compressed gas line 50. The cleaning fluid in the mixing tank 30 can also flow through the first delivery line 10 and the first silo 11, and then be discharged into the first discharge line 90a. The supply valve 28 may be controlled or switched to connect the mixing tank 30 to the first delivery line 10 , but not to allow the mixing tank 30 to connect to the second silo 21 .

[0186] FIG17 is a schematic diagram of the forward cleaning process of the filling system of FIG12A . Referring to FIG17 , during the forward cleaning process, the vent line 80 is coupled to the filling valve 41. The cleaning liquid enters the first silo 11 through the cleaning connecting line 95, and then enters the mixing tank 30 along the filling direction through the pump 12, the static mixer 291, and the common pipe section 29. That is, the cleaning liquid enters the mixing tank 30 through the first delivery line 10. Finally, it is discharged from the filling system through the compressed gas line 50 at the top of the mixing tank 30. Since the above-mentioned cleaning process first passes through the first silo 11 and then passes through the mixing tank 30, the flow rate is large and the cleaning speed is fast.

[0187] In some cases, after the filling system has finished filling one mixed material, it may be necessary to fill another mixed material. For example, first fill a mixture of milk and fruit particles, then replace the fruit particles with other particles such as oats or cereals, and then mix them with milk before filling. That is, the first material in the first silo 11 is replaced with a third material, and the third material and the second material are mixed before filling. In this case, for example, the above filling method further includes: step S60: replacing the first material with the third material. Figures 18A to 18E are schematic diagrams of the various steps of the filling system of Figure 12A when replacing the first material. Referring to Figures 18A to 18E, step S60 may further include:

[0188] Step S601: When the mixed material in the mixing tank 30 is empty, turn off the pump 12. For example, product filling continues normally until the mixed material in the mixing tank 30 is empty, at which point the pump 12 is turned off. At this point, valves 16 and 17 are controlled or switched to prevent the second material from entering the second conveying pipeline 20; the feed valve 28 is controlled or switched to prevent the first material from entering the common pipeline 29; and valve 15 is controlled or switched to prevent the first material from entering the first conveying pipeline 10 (at this point, the first material also cannot enter the first discharge pipeline 90a).

[0189] Step S602: Referring to FIG18A , the pump 12 is started to drain the remaining fruit particles in the first silo 11 through the first discharge pipe 90a, and the third material is added to the first silo 11 until the third material is discharged from the first discharge pipe 90a, and then the pump 12 is turned off. For example, the above step S602 may further include:

[0190] Step S6021: Control or switch valve 15 to connect pump 12 and first discharge line 90a, and start pump 12 to completely drain the remaining first material (e.g., old particles) in first silo 11 through first discharge line 90a. Optionally, the above process can last from several seconds to several tens of seconds to achieve the best possible draining effect.

[0191] Step S6022: A third material (e.g., new pellets) is added to the first silo 11. The third material begins to flow into the first discharge line 90a. Since the first discharge line 90a already contains the first material, the third material pushes the first material forward, causing it to continue to be discharged. When the third material is finally discharged from the first discharge line 90a, the pump 12 is turned off. At this point, only the third material remains in the first discharge line 90a.

[0192] Step S603: Referring to Figure 18B, compressed air from the compressed air pipeline is passed through the common pipe section 29 and the static mixer 291, causing the remaining material in the common pipe section 29 and the static mixer 291 to enter the first discharge pipe 90a and displace the remaining third material in the first discharge pipe 90a. Since the common pipe section 29 and the static mixer 291 contain a mixture of the first and second materials, the introduction of compressed air blows the mixture into the first delivery pipe 10 and the first discharge pipe 90a, thereby displacing the third material in the first discharge pipe 90a. For example, the feed valve 28 is controlled or switched to connect the common pipe section 29 and the first delivery pipe 10, and the valve 15 is controlled or switched to connect the first delivery pipe 10 and the first discharge pipe 90a. This allows the mixture in the common pipe section 29 and the static mixer 291 to enter the first discharge pipe 90a through the first delivery pipe 10, displacing the third material.

[0193] Step S604: Referring to FIG. 18C , until no more third material is discharged from the first discharge pipeline 90a, the second material in the second delivery pipeline 20 enters the mixing tank 30 through the common pipe section 29 and the static mixer 291, and the common pipe section 29 and the static mixer 291 are flushed along the filling direction with the second material to flush the remaining material in the common pipe section 29 and the static mixer 291 into the mixing tank 30. For example, the above step S604 may further include:

[0194] Step S6041: When no third material continues to be discharged from the first discharge pipeline 90a (that is, when the discharge from the first discharge pipeline 90a is not the third material), the feed valve 28 is controlled or switched to connect the common pipe section 29 and the second conveying pipeline 20 to allow the second material to enter the common pipe section 29 and the static mixer 291; the valve 15 is controlled or switched to block the communication between the first conveying pipeline 10 and the first discharge pipeline 90a.

[0195] Step S6042: Valves 16 and 17 are each controlled or switched to allow the second material to enter the second conveying pipeline 20. This allows the second material to flush any remaining mixed material in the common pipe section 29 and static mixer 291 into the mixing tank 30. In some cases, during step S603, the compressed gas may not completely remove all the mixed material in the common pipe section 29 and static mixer 291, leaving some remaining on the inner walls of the common pipe section 29 and static mixer 291. By introducing a second material (e.g., milk) and flushing the common pipe section 29 and static mixer 291 with the second material, the remaining mixed material can be flushed into the mixing tank 30, ensuring a cleaner flushing of the common pipe section 29 and static mixer 291. To further enhance the flushing effect, the amount of second material flushed into the mixing tank 30 can be set. For example, the mixing tank 30 can be provided with a target liquid level. When the second material level reaches this target liquid level, the supply of the second material can be stopped.

[0196] Step S605: Referring to FIG18D , pump 12 is restarted to allow the third material to enter the first delivery pipeline 10. Any remaining material in the upstream section of the first discharge pipeline 90a is pushed into the common section 29 and static mixer 291 by the third material. For example, feed valve 28 is controlled or switched to connect the common section 29 with the first delivery pipeline 10, allowing the third material to enter the common section 29 and static mixer 291 from the first delivery pipeline 10. Valve 15 is controlled or switched to connect the pump 12 with the first delivery pipeline 10, allowing the third material to enter the common section 29 and static mixer 291 from the first delivery pipeline 10. Referring to FIG18B , in some cases, some mixed material may remain on the inner wall of the upstream section of the first discharge pipeline 90a (i.e., the section of the first delivery pipeline 10 between feed valve 28 and valve 15). To remove this residual mixed material, the third material is introduced into the first delivery pipeline 10 (as shown in FIG18D ). In this way, this part of the residual mixed material is pushed into the common pipe section 29 and the static mixer 291 by the third material, and then pushed into the mixing tank 30.

[0197] Referring to FIG. 18D , filling system 1000 optionally further includes a monitoring device 281 located proximate to feed valve 28 and configured to monitor the material conveyed therein. When monitoring device 281 detects the arrival of a third material at feed valve 28, it can control or switch feed valve 28 to prevent the third material from entering. For example, monitoring device 281 can be a visual monitor. Because the third material is relatively expensive, the provision of this monitoring device can minimize the amount of the third material entering common pipe section 29, thereby saving material costs and avoiding material waste.

[0198] Step S606: Referring to Figure 18E , the second material is again used to flush the common pipe section 29 and the static mixer 291 along the filling direction to flush any remaining material in the common pipe section 29 and the static mixer 291 into the mixing tank 30. For example, valves 16 and 17 are respectively controlled or switched to allow the second material to enter the second conveying pipeline 20; and the feed valve 28 is controlled or switched to connect the common pipe section 29 and the second conveying pipeline 20 to allow the second material to enter the common pipe section 29 and the static mixer 291. In this way, the second material can flush the remaining mixed material in the common pipe section 29 and the static mixer 291 (i.e., the remaining mixed material pushed into the common pipe section 29 and the static mixer 291 by the third material in step S605) into the mixing tank 30.

[0199] Optionally, after the second material and the mixed material are simultaneously flushed into the mixing tank 30, the stirring device 31a can be used to stir the mixed material to prevent particles in the mixed material from settling at the bottom of the mixing tank 30, which is beneficial for the next emptying operation. Depending on actual needs, step S606 can be repeated two or more times.

[0200] Step S607: emptying the mixing tank 30. For example, after the mixed material in the mixing tank 30 is completely emptied through the first discharge pipe 90a, the pump 12 is started to start filling the new mixed material of the third material and the first material.

[0201] In conventional filling methods, when replacing old material with new, the entire filling system must first be cleaned to empty the first silo before adding the new material to the first silo, a time-consuming process. However, by implementing steps S601 to S607, not only is the replacement time significantly shortened, but the amount of new material used is also reduced, thereby improving production efficiency and reducing production costs.

[0202] For example, after step S51, the filling method further includes:

[0203] Step S52: Empty the pipelines of the filling system. For example, Figure 19 is a schematic diagram of the pipeline emptying process of the filling system of Figure 12A. Compressed gas or filtered air enters the mixing tank 30 through the compressed gas pipeline 50. The ventilation line 80 is coupled to the filling valve 41. At this time, the mixed material in the mixing tank 30 can be discharged through the filling pipeline 40, the filling valve 41, the ventilation line 80 and the first discharge line 90a. Control or switch the valve 15 so that the first silo 11 is connected to the first discharge line 90a. In this way, the fluid in the first silo 11 can be discharged through the first conveying line 10 and the first discharge line 90a. In this process, as with the conveying of the first material, the pump 12 can be started, and the second blocking valve V2 and the first blocking valve V1 on the bypass line 13 can be closed at the same time.

[0204] According to another embodiment of the present disclosure, a filling system is further provided, comprising a processor and a memory, wherein the memory comprises one or more computer program modules, the one or more computer program modules being stored in the memory and configured to be executed by the processor, and the one or more computer program modules comprising instructions for implementing the filling method of any of the above embodiments.

[0205] According to another embodiment of the present disclosure, a computer-readable storage medium is provided. The computer-readable storage medium stores non-transitory computer-readable instructions. When a processor executes the computer-readable instructions, the filling method of any of the above embodiments can be implemented.

[0206] In this article, the following points need to be explained:

[0207] (1) The drawings of the embodiments of the present disclosure only relate to the structures related to the embodiments of the present disclosure. Other structures may refer to conventional designs.

[0208] (2) For the sake of clarity, in the drawings used to describe the embodiments of the present disclosure, the thickness of layers or regions is exaggerated or reduced, that is, these drawings are not drawn according to the actual scale.

[0209] (3) In the absence of conflict, the embodiments of the present disclosure and the features therein may be combined with each other to form new embodiments.

[0210] The foregoing description is merely an exemplary embodiment of the present disclosure and is not intended to limit the scope of protection of the present disclosure. The scope of protection of the present disclosure is determined by the appended claims.

Claims

1. A filling system comprising: a first silo configured to contain a first material; a second silo configured to contain a second material; a mixing tank configured to mix the first material and the second material; a first delivery pipeline configured to connect the first silo to the mixing tank; a second delivery pipeline configured to connect the second silo to the mixing tank; Wherein, a pump is arranged on the first delivery pipeline, and the pump is configured to adjust a delivery ratio between the first delivery pipeline and the second delivery pipeline.

2. The filling system according to claim 1, wherein: The first conveying pipeline and the second conveying pipeline have a common pipe section located on the upstream side of the mixing tank, and the filling system also includes a static mixer arranged on the common pipe section, and the static mixer is configured to mix the first material and the second material to form an initial mixture, and the initial mixture is subsequently provided to the mixing tank for further mixing.

3. The filling system according to claim 2, wherein: A supply valve is provided on the upstream side of the static mixer and at the junction of the first delivery line and the second delivery line, and the supply valve is configured to selectively allow only the first material, only the second material, or both the first material and the second material to be supplied to the static mixer.

4. The filling system according to any one of claims 1 to 3, further comprising: a bypass line, the bypass line being disposed on the first delivery line and bypassing the pump, the bypass line being configured to selectively control the fluid in the first delivery line to flow through the pump; Wherein, the bypass pipeline includes an inlet end and an outlet end opposite to each other in its extension direction, and also includes a first blocking valve arranged close to the inlet end and a second blocking valve arranged close to the outlet end, wherein the first blocking valve and the second blocking valve are constructed to prevent the first material from entering the pipe section of the bypass pipeline located between the first blocking valve and the second blocking valve.

5. The filling system according to any one of claims 1 to 4, further comprising: A compressed gas pipeline connected to the mixing tank and used to deliver compressed gas Gas, wherein the compressed gas pipeline is provided with a filter for filtering the compressed gas; A steam pipeline, wherein the steam pipeline is used to transport steam; A filtering and sterilizing pipeline is connected between the steam pipeline and the compressed gas pipeline and is connected to the upstream side of the filter so that the filtering steam enters the filter from the upstream side of the filter.

6. The filling system according to claim 5, wherein: A choke valve is provided on the compressed gas pipeline. The choke valve is located on an upstream side of the filter and is configured to prevent the compressed gas from entering the filter.

7. The filling system according to any one of claims 1 to 6, wherein: The compressed gas pipeline is provided with a drain valve, which is located at the downstream side of the filter and is configured to drain at least part of the waste liquid flowing out of the filter.

8. The filling system according to any one of claims 1 to 7, further comprising: A filling pipeline is arranged at the downstream side of the mixing tank, and a filling valve is arranged on the filling pipeline, wherein the mixed material in the mixing tank is filled into the package through the filling valve.

9. The filling system according to claim 8, further comprising: Cleaning source, providing cleaning fluid; A vent line, wherein the first end of the vent line can be selectively connected to a cleaning source, and the second end of the vent line can be operably coupled to the filling valve, wherein when the mixing tank is cleaned, the second end is coupled to the filling valve through a coupler; when the mixture is filled, the second end is decoupled from the filling valve.

10. The filling system according to any one of claims 1 to 9, further comprising: A discharge pipeline, wherein at least one of the first conveying pipeline, the second conveying pipeline, the compressed gas pipeline and the ventilation pipeline of the filling system is connected to the discharge pipeline, so that waste liquid or waste material in each pipeline is discharged to the outside of the filling system via the discharge pipeline.

11. The filling system according to any one of claims 1 to 10, further comprising: The agitator arranged in the mixing tank is used to stir the materials in the mixing tank.

12. A filling method of the filling system according to any one of claims 1 to 11, comprising: Supplying the first material in the first silo and the second material in the second silo to the mixing tank via the first conveying pipeline and the second conveying pipeline respectively; Fill the mixed materials in the mixing tank into the package; Wherein, in the step of supplying the first material and the second material to the mixing tank, the filling method further comprises: The pump is used to adjust the delivery ratio between the first material and the second material.

13. The filling method according to claim 12, wherein: In the step of supplying the first material and the second material to the mixing tank, the filling method further comprises: The first material and the second material are mixed in a static mixer to form an initial mixture; The mixing tank is supplied with the initial mixture.

14. The filling method according to claim 12 or 13, wherein: In the process of filling the mixed material in the mixing tank into the package, the filling method further comprises: The first blocking valve and the second blocking valve on the bypass pipeline of the first conveying pipeline are closed to prevent the first material from entering the pipe section of the bypass pipeline between the first blocking valve and the second blocking valve.

15. The filling method according to any one of claims 12 to 14, wherein: Before supplying the first material in the first silo and the second material in the second silo to the mixing tank via the first conveying pipeline and the second conveying pipeline respectively, the filling method further includes: The steam pipeline provides steam for filtering; wherein the steam for filtering is supplied to the upstream side of the filter of the compressed gas pipeline via the filter sterilization pipeline and enters the filter to sterilize the filter.

16. The filling method according to claim 15, further comprising: At least part of the waste liquid flowing out of the filter is discharged through a drain valve on the downstream side of the filter.

17. The filling method according to any one of claims 12 to 16, wherein: After stopping the filling, the filling method further comprises: connecting the second delivery line to a cleaning source; The cleaning liquid provided by the cleaning source is used to clean the second conveying pipeline along the filling direction, wherein the remaining material in the second conveying pipeline is discharged to the outside of the filling system through the mixing tank.

18. The filling method according to claim 17, further comprising: connecting a first end of a vent line to a cleaning source and coupling a second end of the vent line to a filling valve; The filling valve and the filling pipeline are cleaned by using the cleaning liquid provided by the cleaning source, wherein The remaining materials in the filling valve and the filling pipeline are discharged into the mixing tank.

19. The filling method according to claim 18, after cleaning the filling valve and the filling pipeline, the filling method further comprises: The filling system is alternately subjected to at least one reverse cleaning and at least one forward cleaning, wherein the reverse cleaning is cleaning in a direction opposite to the filling direction, and the forward cleaning is cleaning in the filling direction.

20. The filling method according to any one of claims 12 to 19, further comprising: Replacing the first material with a third material; wherein the replacing the first material with the third material comprises: When the mixed material in the mixing tank is emptied, turning off the pump; Starting the pump to empty the remaining fruit particles in the first silo through the discharge pipeline, and adding the third material into the first silo until the third material is discharged from the discharge pipeline, and then closing the pump; Passing compressed gas in the compressed air pipeline into the common pipe section and the static mixer, so that the remaining materials in the common pipe section and the static mixer enter the discharge pipeline and push out the remaining third material in the discharge pipeline; Until no more third material is discharged from the discharge pipeline, the second material in the second delivery pipeline enters the mixing tank through the common pipe section and the static mixer, so that the common pipe section and the static mixer are flushed along the filling direction by the second material, so that the remaining material in the common pipe section and the static mixer is flushed into the mixing tank; Starting the pump again to allow the third material to enter the first delivery pipeline, wherein all remaining materials remaining in the upstream pipe section of the discharge pipeline are pushed into the common pipe section and the static mixer by the third material; flushing the common pipe section and the static mixer again along the filling direction with the second material to flush all the remaining materials in the common pipe section and the static mixer into the mixing tank; and Empty the mixing tank.

21. A filling system comprising: processor; a memory including one or more computer program modules; The one or more computer program modules are stored in the memory and configured to be executed by the processor, and the one or more computer program modules include instructions for implementing the filling method according to any one of claims 12 to 20.

22. A computer-readable storage medium, wherein non-transitory computer-readable instructions are stored in the computer-readable storage medium, and when a processor executes the computer-readable instructions, the filling method according to any one of claims 12 to 20 can be implemented.

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