Packaging system and packaging method

Abstract

The invention provides a packaging system and method. The packaging system comprises a first clean room, a filling room, a second clean room and a conveying belt, the first side face of the first clean room makes contact with the external environment, the second side face of the first clean room is adjacent to the first side face of the filling room, and a first sealing door is arranged on the first side face of the first clean room; the second side face of the filling chamber is adjacent to the first side face of the second cleaning chamber, a second sealing door is arranged on the first side face of the filling chamber, and a third sealing door is arranged on the second side face of the filling chamber. Filling equipment is arranged on the top of the filling chamber and used for conducting filling operation on the packaging containers located in the filling chamber. The second side face of the second clean room is in contact with the external environment, and a fourth sealing door is arranged on the second side face of the second clean room; the conveying belt sequentially communicates with the first clean chamber, the filling chamber and the second clean chamber and is used for conveying the packaging containers on the packaging system. And the automation level of the materials in the packaging process is improved.

Description

Technical Field

[0001] The present application relates to the field of packaging, and in particular, to a packaging system and a packaging method. Background Art

[0002] In industrial production, certain materials have extremely high requirements for sealing during packaging and transportation. Take lithium salt products such as lithium hexafluorophosphate as an example. On the one hand, if lithium hexafluorophosphate comes into contact with air during packaging and transportation, its quality will be damaged. On the other hand, it will also generate acid mist that damages the environment.

[0003] For materials with high sealing requirements, filling, docking, cleaning and other operations in the packaging process still require manual operation. Although manual operation can achieve product packaging, on the one hand, the operation is cumbersome, the level of automation is low, and the efficiency is low. On the other hand, the risk of product leakage is relatively high, which poses a high risk to personal health and safety and the surrounding environment. Summary of the invention

[0004] The present application at least provides a packaging system and a packaging method, which can replace manual handling and manual docking operations through conveyor belts and filling equipment, thereby improving the level of automation in the material packaging process. At the same time, for materials with high requirements for airtightness, the series cooperation of the first clean room, the filling room and the second clean room can achieve isolation from the external environment during the material packaging process, which can not only prevent the material from contacting the external environment to protect the quality, but also can promptly recover the volatilized substances to prevent leakage into the external environment.

[0005] The present application embodiment provides a packaging system, including a first clean room, a filling room, a second clean room and a conveyor belt:

[0006] The first side of the first clean room contacts the external environment, the second side is adjacent to the first side of the filling room, and a first closed door communicating with the external environment is arranged on the first side of the first clean room;

[0007] The second side of the filling room is adjacent to the first side of the second clean room, a second closed door communicating with the first clean room is arranged on the first side of the filling room, and a third closed door communicating with the second clean room is arranged on the second side of the filling room;

[0008] A filling device is provided on the top of the filling chamber, and the filling device is used to perform filling operations on the packaging containers located in the filling chamber;

[0009] The second side of the second clean room is in contact with the external environment, and a fourth closed door communicating with the external environment is arranged on the second side of the second clean room;

[0010] The conveyor belt sequentially connects the first clean room, the filling room and the second clean room, and is used to realize the transportation of the packaging container on the packaging system.

[0011] Another embodiment of the present application provides a packaging method based on a packaging system, comprising:

[0012] Open the first closed door and close the second closed door, and transport the packaging container from the external environment to the first clean room via the conveyor belt;

[0013] Open the second closed door and close the third closed door, and transport the packaging container from the first clean room to the filling room via the conveyor belt;

[0014] The filling room performs filling operations on the packaging containers located in the filling room through the filling equipment;

[0015] After the filling operation is completed, the third closed door is opened and the fourth closed door is closed, and the packaging container is transported from the filling room to the second clean room by the conveyor belt;

[0016] The fourth closed door is opened, and the packaging container is transported from the second clean room to the external environment by the conveyor belt. The first closed door is repeatedly opened and the second closed door is repeatedly closed, and the next packaging container is transported from the external environment to the first clean room by the conveyor belt to complete the packaging operation of the next packaging container.

[0017] In summary, the present application provides a packaging system and a packaging method, wherein the packaging system comprises a first clean room, a filling room, a second clean room and a conveyor belt: a first side surface of the first clean room is in contact with the external environment, and a second side surface is adjacent to the first side surface of the filling room, and a first closed door communicating with the external environment is arranged on the first side surface of the first clean room; a second side surface of the filling room is adjacent to the first side surface of the second clean room, and a second closed door communicating with the first clean room is arranged on the first side surface of the filling room, and a third closed door communicating with the second clean room is arranged on the second side surface of the filling room; a filling device is arranged on the top of the filling room, and the filling device is used to fill the packaging container located in the filling room; the second side surface of the second clean room is in contact with the external environment, and a fourth closed door communicating with the external environment is arranged on the second side surface of the second clean room; the conveyor belt sequentially connects the first clean room, the filling room and the second clean room, and is used to realize the transportation of the packaging container on the packaging system. Conveyor belts and filling equipment can replace manual handling and manual docking operations, thereby improving the level of automation in the material packaging process. At the same time, for materials with high requirements for airtightness, the series cooperation of the first clean room, the filling room and the second clean room can achieve isolation from the external environment during the material packaging process, prevent the material from contacting the external environment to protect the quality, and recover the volatile substances in time to prevent leakage into the external environment.

[0018] Other advantages of the present application will be explained in more detail in conjunction with the following description and drawings.

[0019] It should be understood that the above description is only an overview of the technical solution of the present application, so that the technical means of the present application can be generally understood and then implemented according to the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are specifically described below by way of example. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. The drawings herein are incorporated into the specification and constitute a part of the specification. These drawings illustrate embodiments that conform to the present application and are used together with the specification to illustrate the technical solutions of the present application. It should be understood that the drawings only illustrate certain embodiments of the present application and should not be regarded as limiting the scope of protection. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work. Moreover, the same reference numerals are used to represent the same components throughout the drawings. In the drawings:

[0021] Figure 1 A schematic diagram of the structure of the packaging system provided in an embodiment of the present application;

[0022] Figure 2 A schematic diagram of the structure of a flexible packaging bag provided in an embodiment of the present application;

[0023] Figure 3 A schematic diagram of a packaging method according to an embodiment of the present invention;

[0024] In the drawings, the same or corresponding reference numerals represent the same or corresponding parts.

[0025] Among them, 1-first clean room; 11-first closed door; 12-first protective gas inlet; 13-first exhaust port; 2-filling room; 21-second closed door; 22-second protective gas inlet; 23-second exhaust port; 24-filling equipment; 25-discharging port of filling equipment 26-oxygen monitor; 27-humidity monitor; 28-third closed door; 3-second clean room; 31-fourth closed door; 32-third protective gas inlet; 33-third exhaust port; 4-conveyor belt; 5-packaging container; 51-filling port; 52-packaging shell; 521-sealing layer; 522-support layer; 523-protective layer; 53-reinforcement rib; 54-binding strap. DETAILED DESCRIPTION

[0026] The exemplary embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the exemplary embodiments of the present application are shown in the accompanying drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to enable a more thorough understanding of the present application and to fully convey the scope of the present application to those skilled in the art.

[0027] In the description of the embodiments of the present application, it should be understood that terms such as "including" or "having" are intended to indicate the presence of the disclosed features, numbers, components, parts or a combination thereof in the present specification, and do not exclude the possibility of the presence of one or more other features, numbers, components, parts or a combination thereof.

[0028] Unless otherwise specified, “ / ” means or. For example, A / B can mean A or B. The “and / or” in this article is merely a way to describe the association relationship of associated objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists alone, A and B exist at the same time, and B exists alone.

[0029] The terms "first", "second", etc. are used only to distinguish the same or similar technical features for the convenience of description, and should not be understood as indicating or implying the relative importance or quantity of these technical features. Thus, the features defined by "first", "second", etc. may explicitly or implicitly include one or more of such features. In the description of the embodiments of the present application, unless otherwise specified, the term "plurality" means two or more than two.

[0030] For materials with high sealing requirements, filling, docking, cleaning and other operations in the packaging process still require manual operation. Although manual operation can achieve product packaging, on the one hand, the operation is cumbersome, the level of automation is low, and the efficiency is low. On the other hand, the risk of product leakage is relatively high, which poses a high risk to personal health and safety and the surrounding environment.

[0031] In view of this, the present application provides a packaging system and a packaging method, which can replace manual handling and manual docking operations through conveyor belts and filling equipment, thereby improving the level of automation in the material packaging process. At the same time, for materials with high requirements for airtightness, the series cooperation of the first clean room, the filling room and the second clean room can achieve isolation from the external environment during the material packaging process, which can not only prevent the material from contacting the external environment to protect the quality, but also can promptly recover the volatilized substances to prevent leakage into the external environment.

[0032] The present application will be described in detail below with reference to the accompanying drawings and in combination with embodiments.

[0033] like Figure 1As shown, the present application provides a packaging system, which includes a first clean room 1 , a filling room 2 , a second clean room 3 and a conveyor belt 4 .

[0034] The first side of the first clean room 1 is in contact with the external environment, and the second side is adjacent to the first side of the filling room 2. A first closed door 11 communicating with the external environment is arranged on the first side of the first clean room 1. The first closed door 11 can enable the packaging container 5 to enter the first clean room 1 from the external environment, and at the same time, the external environment is isolated after the packaging container 5 enters the first clean room 1.

[0035] The second side surface of the filling room 2 is adjacent to the first side surface of the second clean room 3. A second closed door 21 communicating with the first clean room 1 is arranged on the first side surface of the filling room 2. A third closed door 28 communicating with the second clean room 3 is arranged on the second side surface of the filling room 2. That is, the filling room 2 is provided with a second closed door 21 and a third closed door 28, which are respectively communicated with the first clean room 1 and the second clean room 3.

[0036] A filling device 24 is provided on the top of the filling chamber 2. The filling device 24 is used to fill the packaging container 5 located in the filling chamber 2. In actual applications, when the material to be packaged is a lithium salt product such as lithium hexafluorophosphate, the packaging container can be a steel lithium salt barrel. The filling device 24 can be automatically connected to the packaging container 5 to perform the filling operation, that is, the filling device 24 can replace the manual docking operation to realize automatic filling.

[0037] The second side of the second clean room 3 is in contact with the external environment. A fourth closed door 31 communicating with the external environment is provided on the second side of the second clean room 3. The fourth closed door 31 can be used to transport the packaging container 5 from the second clean room 3 to the second clean room 3 while isolating it from the external environment.

[0038] The conveyor belt 4 sequentially connects the first clean room 1 , the filling room 2 and the second clean room 3 , and is used to realize the transportation of the packaging container 5 on the packaging system, that is, the conveyor belt 4 can replace manual handling operations to realize the automatic transportation of the packaging container 5 .

[0039] For materials with high requirements for airtightness, the first clean room 1, the filling room 2 and the second clean room 3 are connected in series to achieve isolation from the external environment during the material packaging process. This can not only prevent the material from contacting the external environment to protect the quality, but also recover the volatile substances in time to prevent leakage into the external environment, thereby achieving automatic packaging of the material in a sealed environment.

[0040] In a possible implementation, for materials with high airtightness requirements, a first protective gas inlet 12 is provided at the bottom of the first clean room 1, and a first exhaust port 13 is provided at the top;

[0041] A second protective gas inlet 22 is provided at the bottom of the filling chamber 2, and a second exhaust port 23 is provided at the top;

[0042] A third protective gas inlet 32 ​​is disposed at the bottom of the second clean room 3 , and a third exhaust port 33 is disposed at the top.

[0043] Specifically, the first protective gas inlet 12 and the first exhaust port 13 can realize the purging of the first clean room 1, ensuring the replacement and cleaning of air and moisture in the first clean room 1; the second protective gas inlet 22 and the second exhaust port 23 can realize the purging of the filling room 2, ensuring the replacement and cleaning of air and moisture in the filling room 2; the third protective gas inlet 32 ​​and the third exhaust port 33 can realize the purging of the second clean room 3, ensuring the replacement and cleaning of air and moisture in the second clean room 3. In addition, for materials that may volatilize harmful substances, the replacement and cleaning of harmful substances in the second clean room 3 can be further ensured.

[0044] In a possible implementation, in order to further ensure that the moisture content and air content in the filling chamber 2 meet the requirements and avoid damaging the quality of the material, the filling chamber 2 is provided with an oxygen monitor 26 and a humidity monitor 27 .

[0045] In the related art, the packaging container commonly used is a steel packaging container. For example, when the material is lithium hexafluorophosphate, the packaging container can be a stainless steel lithium salt barrel. The volume of the stainless steel lithium salt barrel is relatively large, which may be several hundred kilograms to tons. The manufacturing cost and transportation cost are both high, especially for the application scenarios of long-distance transportation or even cross-sea transportation. The recycling cost of the stainless steel lithium salt barrel that is emptied of materials is also very high. In this regard, in a possible implementation method, Figure 2 As shown, the packaging container 5 can be a flexible packaging bag.

[0046] A filling port 51 is provided at the top of the flexible packaging bag. The main body of the flexible packaging bag is a packaging shell 52. The packaging shell 52 includes four shell side surfaces. Each of the four shell side surfaces is provided with a reinforcing rib 53 at the end adjacent to the other shell side surfaces. The reinforcing rib 53 can improve the mechanical properties and tear resistance of the flexible packaging bag. A strap 54 is provided on one of the four shell side surfaces. The strap 54 matches the rigid structure on the conveyor belt 4. The strap 54 can improve the tear resistance to a certain extent and can also cooperate with the rigid structure on the conveyor belt 4 to complete the fixation and transfer of the flexible packaging bag during the transportation process.

[0047] Since the flexible packaging bag can be made of non-steel materials, after the material in the packaging container is emptied, the flexible packaging bag can be folded and scaled compared to the traditional steel lithium salt barrel. That is, the flexible packaging bag can make the packaging container lightweight and take up less space when there is no material, greatly reducing the occupied space and recycling and transportation costs.

[0048] In one possible implementation, when the packaging container 5 is a flexible packaging bag, in order to ensure the safe transmission of materials, the packaging shell 52 can be a multi-layer structure including a sealing layer 521, a support layer 522 and a protective layer 523. The sealing layer 521 is used to achieve the sealing performance of the flexible packaging bag, and the sealing layer 521 is used to block air, prevent oxidation, waterproof and moisture. The support layer 522 is used to provide support for the sealing layer 521 to reduce wrinkles. The protective layer 523 is used to protect the sealing layer 521 and the support layer 522, thereby improving the puncture resistance and tear resistance of the packaging shell 52.

[0049] For materials that need to be transported in a sealed manner, when flexible packaging bags are used for packaging, the flexible packaging bags improve the mechanical properties, explosion resistance, puncture resistance and tear resistance of the packaging container 5 by setting a sealing layer 521, a support layer 522 and a protective layer 523, reduce the risk of material leakage due to packaging damage, and ensure the sealing and safety reliability during material transportation.

[0050] The packaging method based on the above packaging system provided by the present application is described below with a method embodiment. Figure 3 As shown, Figure 3 A schematic diagram of a packaging method provided in an embodiment of the present application, the method comprising:

[0051] S301 , opening the first closed door 11 and closing the second closed door 21 , and conveying the packaging container 5 from the external environment to the first clean room 1 via the conveyor belt 4 .

[0052] S302 , opening the second closed door 21 and closing the third closed door 28 , and conveying the packaging container 5 from the first clean room 1 to the filling room 2 via the conveyor belt 4 .

[0053] S303 , the filling room 2 performs a filling operation on the packaging container 5 located in the filling room 2 through the filling equipment 24 .

[0054] S304 , after the filling operation is completed, the third closed door 28 is opened and the fourth closed door 31 is closed, and the packaging container 5 is transported from the filling room 2 to the second clean room 3 via the conveyor belt 4 .

[0055] S305, open the fourth closed door 31, transport the packaging container 5 from the second clean room 3 to the external environment through the conveyor belt 4, and repeatedly open the first closed door 11 and repeatedly close the second closed door 21, and transport the next packaging container 5 from the external environment to the first clean room 1 through the conveyor belt 4 to complete the packaging operation of the next packaging container 5.

[0056] It should be noted that, in actual application, in order to further improve efficiency, while the packaging container 5 is being transported to the second clean room 3 in S304 , the next packaging container 5 can be transported to the first clean room 1 .

[0057] Through the above steps, the continuous operation of the packaging system can be realized, thereby realizing the automatic packaging of multiple packaging containers 5 in sequence.

[0058] In a possible implementation, after the first closed door 11 is opened and the second closed door 21 is closed in S301, and the packaging container 5 is transported from the external environment to the first clean room 1 by the conveyor belt 4, the packaging method further includes:

[0059] The first closed door 11 is closed, the first protective gas inlet 12 is opened to allow the protective gas to flow in from the first protective gas inlet 12 , and the first exhaust port 13 is opened to purge the first clean room 1 , so as to replace the air and moisture in the first clean room 1 .

[0060] After the second closed door 21 is opened and the third closed door 28 is closed in S302, and the packaging container 5 is transported from the first clean room 1 to the filling room 2 by the conveyor belt 4, the packaging method further includes:

[0061] The second closed door 21 is closed, the second protective gas inlet 22 is opened to allow the protective gas to flow in from the second protective gas inlet 22, and the second exhaust port 23 is opened to purge the filling chamber 2 so that the filling equipment 24 can perform the filling operation after the purge is completed, that is, the air and moisture in the filling chamber 2 can be replaced by the second protective gas inlet 22 and the second exhaust port 23, thereby preventing the filling equipment 24 from contacting the material with air and moisture during the filling operation.

[0062] After the third closed door 28 is opened and the fourth closed door 31 is closed in S304, and the packaging container 5 is transported from the filling room 2 to the second clean room 3 by the conveyor belt 4, the packaging method further includes:

[0063] The third closed door 28 is closed, the third protective gas inlet 32 ​​is opened to allow the protective gas to be introduced from the third protective gas inlet 32, and the third exhaust port 33 is opened to purge the second clean room 3. The purge of the second clean room 3 can ensure the replacement and cleaning of air and moisture in the second clean room 3. In addition, for materials that may volatilize harmful substances, the replacement and cleaning of harmful substances in the second clean room 3 can be further ensured. In actual application, after the protective gas has been introduced into the second clean room 3 for a period of time, the third protective gas inlet 32 ​​and the third exhaust port 33 can be closed.

[0064] In a possible implementation, the second closed door 21 is closed, the second protective gas inlet 22 is opened to allow the protective gas to flow in from the second protective gas inlet 22, and the second exhaust port 23 is opened to purge the filling chamber 2 so that the filling device 24 performs the filling operation after the purge is completed, including:

[0065] The second closed door 21 is closed, the second protective gas inlet 22 is opened so as to allow the protective gas to flow in from the second protective gas inlet 22, and the second exhaust port 23 is opened;

[0066] After the second exhaust port 23 is opened, the air content in the filling chamber 2 is obtained by the oxygen monitor 26 and the moisture content in the filling chamber 2 is obtained by the humidity monitor 27;

[0067] If the air content meets the air content condition and the moisture content meets the moisture content condition, it means that the air content and the moisture content meet the standard and the air and moisture requirements in the filling operation are met, and the second protective gas inlet 22 and the second exhaust port 23 are closed.

[0068] In a possible implementation, the packaging container 5 may be a flexible packaging bag, a filling port 51 is provided on the top of the flexible packaging bag, and the filling chamber 2 performs a filling operation on the packaging container 5 located in the filling chamber 2 through the filling device 24, including:

[0069] Start the filling device 24, dock with the packaging container 5, and fill the material through the filling port 51;

[0070] When the filling device 24 reaches the target filling volume, it indicates that the filling in the flexible packaging bag is completed, the filling device 24 stops filling, closes the filling port 51 to seal the flexible packaging bag, and the filling device 24 is separated from the packaging container 5.

[0071] When the packaging container 5 is a flexible packaging bag, the flexible packaging bag can be fixed to the rigid structure of the conveyor belt 4 by means of a binding belt 54 .

[0072] In a possible implementation, after the filling device 24 is separated from the packaging container 5, the packaging method further includes:

[0073] The second protective gas inlet 22 is opened to allow the protective gas to flow in from the second protective gas inlet 22, and the second exhaust port 23 is opened to perform secondary purge of the filling chamber 2. The secondary purge can discharge harmful substances that may be volatilized from the material in the filling chamber 2 during the filling process;

[0074] When the introduction time of the protective gas meets the target introduction time threshold, it means that the filling chamber 2 has been purged to a certain extent, and the second protective gas inlet 22 and the second exhaust port 23 are closed.

[0075] The packaging method provided in the embodiment of the present application is described below by taking the packaging system for packaging hexafluorophosphate as an example:

[0076] Lithium hexafluorophosphate has extremely high requirements for sealing during packaging and transportation. The material must be kept away from air and moisture to prevent product deterioration. At the same time, there is a possibility of hydrogen fluoride gas volatilization.

[0077] Step 1: transport the packaging container 5 to the first clean room 1 .

[0078] The packaging container 5 can be a traditional steel lithium salt barrel or a flexible packaging bag.

[0079] The flexible packaging bag can carry materials weighing 0.5-3t and having a volume of 500-2300L. It is resistant to high temperatures (120°C) and low temperatures (-50°C). The flexible packaging bag can be square, cylindrical, or multi-sided. The sealing layer 521 of the flexible packaging bag can be made of an aluminum-plastic composite film, the supporting layer 522 can be made of PET / AL / PA / PE, etc., and the protective layer 523 can be made of a PP outer bag / carton / IBC barrel, etc.

[0080] Step 1-1: Open the closed door 11, close the closed door 21, and convey the packaging container 5 to the first clean room 1 via the conveyor belt 4.

[0081] When the packaging container 5 is a flexible packaging bag, the flexible packaging bag is fixed to the rigid structure of the packaging container 5 by means of a binding belt 54; when the packaging container is a traditional steel lithium salt barrel, the conveyor belt 4 can also be directly fixedly connected to the traditional steel lithium salt barrel.

[0082] Step 1-2: Close the closed door 11 , introduce nitrogen gas from the protective gas inlet 12 , open the exhaust port 13 , and replace the air and moisture in the first clean room 1 .

[0083] Step 2: The packaging container 5 enters the filling chamber 2.

[0084] Step 2-1: Open the closed door 21, close the closed door 28, and transport the packaging container 5 to the filling chamber 2 via the conveyor belt 4.

[0085] Step 2-2: Close the closed door 21 , introduce protective gas from the protective gas inlet 22 , open the exhaust port 23 , and replace the air and moisture in the filling chamber 2 .

[0086] Step 2-3: Use the oxygen monitor 26 and the humidity monitor 27 to determine whether the air and moisture content in the filling chamber 2 meet the standards. If the requirements are met, close the protective gas inlet 22 and the exhaust port 23.

[0087] Step 2-4: Start the filling system 24 to automatically dock with the filling port 51 on the flexible packaging bag 5 to achieve material filling.

[0088] The discharge port of the filling system 24 and the filling port 51 are electrically matched with valves for automatic docking; during the docking process, the filling port 51 is tightly connected to the packaging shell 52, and the cavity of the filling port 51 can be made of steel materials such as stainless steel or plastic materials such as PTFE.

[0089] Step 2-5: After the filling system 24 reaches the target filling volume, the filling system 24 stops filling and automatically closes the filling port 51 to seal the flexible packaging bag 5.

[0090] Step 2-6: The filling system 24 automatically detaches from the flexible packaging bag 5, and opens the protective gas inlet 22 and the exhaust port 23 again to discharge the hydrogen fluoride acid mist that may be emitted from the filling chamber 2; after the protective gas is introduced for a certain period of time, the protective gas inlet 22 and the exhaust port 23 are closed.

[0091] Step 3: The packaging container 5 enters the third clean room 3.

[0092] Step 3 - 1 : Open the closed door 28 , close the closed door 31 , and convey the packaging container 5 to the third clean room 3 via the conveyor belt 4 .

[0093] Step 3-2: close the closed door 28, introduce protective gas from the protective gas inlet 32, open the exhaust port 33, and recover the hydrogen fluoride acid mist that may exist in the third clean room 3; after the protective gas is introduced for a certain period of time, close the protective gas inlet 32 ​​and the exhaust port 33.

[0094] Step 3-3: Open the closed door 31 and convey the packaging container 5 out of the packaging system via the conveyor belt 4.

[0095] Step 4: While executing step 3, repeat the operation of step 1 to achieve continuous operation of the packaging system.

[0096] In summary, the present application provides a packaging system and a packaging method, wherein the packaging system comprises a first clean room, a filling room, a second clean room and a conveyor belt: a first side surface of the first clean room is in contact with the external environment, and a second side surface is adjacent to the first side surface of the filling room, and a first closed door communicating with the external environment is arranged on the first side surface of the first clean room; a second side surface of the filling room is adjacent to the first side surface of the second clean room, and a second closed door communicating with the first clean room is arranged on the first side surface of the filling room, and a third closed door communicating with the second clean room is arranged on the second side surface of the filling room; a filling device is arranged on the top of the filling room, and the filling device is used to fill the packaging container located in the filling room; the second side surface of the second clean room is in contact with the external environment, and a fourth closed door communicating with the external environment is arranged on the second side surface of the second clean room; the conveyor belt sequentially connects the first clean room, the filling room and the second clean room, and is used to realize the transportation of the packaging container on the packaging system. Conveyor belts and filling equipment can replace manual handling and manual docking operations, thereby improving the level of automation in the material packaging process. At the same time, for materials with high requirements for airtightness, the series cooperation of the first clean room, the filling room and the second clean room can achieve isolation from the external environment during the material packaging process, prevent the material from contacting the external environment to protect the quality, and recover the volatile substances in time to prevent leakage into the external environment.

[0097] On this basis, flexible packaging bags can be selected as packaging containers. Since the material of flexible packaging bags can be non-steel materials, after the material in the packaging container is emptied, the flexible packaging bags can be folded and scaled compared to traditional steel lithium salt barrels. That is, the flexible packaging bags can achieve lightweight and less space occupancy of the packaging container when there is no material, greatly reducing the occupied space and recycling and transportation costs.

[0098] For materials that need to be transported in a sealed manner, when flexible packaging bags are used for packaging, the flexible packaging bags improve the mechanical properties, explosion resistance, puncture resistance and tear resistance of the packaging container by setting a sealing layer, a support layer and a protective layer, reduce the risk of material leakage due to packaging damage, and ensure the sealing and safety reliability during material transportation.

[0099] In the description of this specification, the description with reference to the terms "some possible embodiments", "some embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application, and the above terms do not necessarily represent the same embodiment or example. Moreover, the described specific features, structures, materials or characteristics may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, unless they are contradictory.

[0100] Although the spirit and principle of the present application have been described above with reference to several specific embodiments, it should be understood that the present application is not limited to the disclosed specific embodiments, and the division of various aspects does not mean that the features in these aspects cannot be combined. The present application is intended to cover various modifications and equivalent arrangements included in the spirit and scope of the attached claims.

Claims

1. A packaging system, characterized in that: The packaging system comprises a first clean room (1), a filling room (2), a second clean room (3) and a conveyor belt (4): The first side of the first clean room (1) is in contact with the external environment, and the second side is adjacent to the first side of the filling room (2); the first side of the first clean room (1) is provided with a first closed door (11) communicating with the external environment; The second side surface of the filling room (2) is adjacent to the first side surface of the second clean room (3); a second closed door (21) communicating with the first clean room (1) is provided on the first side surface of the filling room (2); and a third closed door (28) communicating with the second clean room (3) is provided on the second side surface of the filling room (2); A filling device (24) is provided on the top of the filling chamber (2), and the filling device (24) is used to perform a filling operation on the packaging container (5) located in the filling chamber (2); The second side surface of the second clean room (3) is in contact with the external environment, and a fourth closed door (31) communicating with the external environment is provided on the second side surface of the second clean room (3); The conveyor belt (4) is connected to the first clean room (1), the filling room (2) and the second clean room (3) in sequence, and is used to realize the conveyance of the packaging container (5) on the packaging system.

2. The packaging system according to claim 1, characterized in that: A first protective gas inlet (12) is arranged at the bottom of the first clean room (1), and a first exhaust port (13) is arranged at the top; A second protective gas inlet (22) is provided at the bottom of the filling chamber (2), and a second exhaust port (23) is provided at the top; A third protective gas inlet (32) is arranged at the bottom of the second clean room (3), and a third exhaust port (33) is arranged at the top.

3. The packaging system according to claim 1, characterized in that: The filling chamber (2) is provided with an oxygen monitor (26) and a humidity monitor (27).

4. The packaging system according to claim 1, characterized in that: The packaging container (5) is a flexible packaging bag; A filling port (51) is arranged at the top of the flexible packaging bag, and the main body of the flexible packaging bag is a packaging shell (52), and the packaging shell (52) includes four shell side surfaces, and each of the four shell side surfaces is provided with a reinforcing rib (53) at an end portion adjacent to the other shell side surfaces, and a binding belt (54) is provided on one of the four shell side surfaces, and the binding belt (54) matches the rigid structure on the conveyor belt (4).

5. The packaging system according to claim 4, characterized in that: The packaging shell (52) is a multi-layer structure including a sealing layer (521), a supporting layer (522) and a protective layer (523); the sealing layer (521) is used to achieve the sealing performance of the flexible packaging bag, the supporting layer (522) is used to provide support for the sealing layer (521), and the protective layer (523) is used to protect the sealing layer (521) and the supporting layer (522).

6. A packaging method based on the packaging system according to any one of claims 1 to 5, characterized in that: The method comprises: Opening the first closed door (11) and closing the second closed door (21), and conveying the packaging container (5) from the external environment to the first clean room (1) via the conveyor belt (4); Opening the second closed door (21) and closing the third closed door (28), and conveying the packaging container (5) from the first clean room (1) to the filling room (2) via the conveyor belt (4); The filling chamber (2) performs a filling operation on a packaging container (5) located in the filling chamber (2) through the filling equipment (24); After the filling operation is completed, the third closed door (28) is opened and the fourth closed door (31) is closed, and the packaging container (5) is transported from the filling room (2) to the second clean room (3) via the conveyor belt (4); The fourth closed door (31) is opened, and the packaging container (5) is transported from the second clean room (3) to the external environment via the conveyor belt (4); the first closed door (11) is repeatedly opened and the second closed door (21) is repeatedly closed, and the next packaging container (5) is transported from the external environment to the first clean room (1) via the conveyor belt (4) so ​​as to complete the packaging operation of the next packaging container (5).

7. The packaging method according to claim 6, characterized in that: After the first closed door (11) is opened and the second closed door (21) is closed, and the packaging container (5) is transported from the external environment to the first clean room (1) by the conveyor belt (4), the method further comprises: closing the first closed door (11), opening the first protective gas inlet (12) to allow the protective gas to flow in through the first protective gas inlet (12), and opening the first exhaust port (13) to purge the first clean room (1); After the second closed door (21) is opened and the third closed door (28) is closed, and the packaging container (5) is transported from the first clean room (1) to the filling room (2) via the conveyor belt (4), the method further comprises: closing the second closed door (21), opening the second protective gas inlet (22) to allow the protective gas to flow in through the second protective gas inlet (22), and opening the second exhaust port (23) to purge the filling chamber (2) so that the filling device (24) can perform a filling operation after the purge is completed; After the third closed door (28) is opened and the fourth closed door (31) is closed, and the packaging container (5) is transported from the filling room (2) to the second clean room (3) via the conveyor belt (4), the method further comprises: The third closed door (28) is closed, the third protective gas inlet (32) is opened to allow the protective gas to flow in from the third protective gas inlet (32), and the third exhaust port (33) is opened to purge the second clean room (3).

8. The packaging method according to claim 7, characterized in that: The closing of the second closed door (21), the opening of the second protective gas inlet (22) to allow the protective gas to flow in from the second protective gas inlet (22), and the opening of the second exhaust port (23) to purge the filling chamber (2) so that the filling device (24) can perform the filling operation after the purge is completed, comprises: closing the second closed door (21), opening the second protective gas inlet (22) so as to allow the protective gas to flow in through the second protective gas inlet (22), and opening the second exhaust port (23); After the second exhaust port (23) is opened, the air content in the filling chamber (2) is obtained by an oxygen monitor (26) and the moisture content in the filling chamber (2) is obtained by a humidity monitor (27); If the air content satisfies the air content condition and the moisture content satisfies the moisture content condition, the second protective gas inlet (22) and the second exhaust port (23) are closed.

9. The packaging method according to claim 8, characterized in that: The packaging container (5) is a flexible packaging bag, and a filling port (51) is provided at the top of the flexible packaging bag. The filling chamber (2) performs a filling operation on the packaging container (5) located in the filling chamber (2) through the filling device (24), including: Starting the filling device (24) to dock with the packaging container (5) and filling the material through the filling port (51); When the filling device (24) reaches the target filling volume, the filling device (24) stops filling, closes the filling port (51), and the filling device (24) is separated from the packaging container (5).

10. The packaging method according to claim 9, characterized in that: After the filling device (24) is separated from the packaging container (5), the method further comprises: Opening the second protective gas inlet (22) to allow the protective gas to flow in through the second protective gas inlet (22), and opening the second exhaust port (23) to perform a second purge of the filling chamber (2); When the introduction time of the protective gas meets the target introduction time threshold, the second protective gas inlet (22) is closed and the second exhaust port (23) is closed.

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