Automatic polymer dry powder addition system

Abstract

This application discloses an automatic polymer powder adding system, which includes a feeding unit, a conveying unit, and a control unit. The feeding unit includes a storage hopper and a first level gauge installed within the hopper. The conveying unit includes a handling device, a unpacking machine, and a feeder. When the amount of polymer powder in the storage hopper is too low, the control unit controls the handling device to move the polymer powder package to the cutter of the unpacking machine based on the level information. The unpacking machine then unpacks the polymer powder package and supplies the polymer powder to the feeder. Finally, the feeder delivers the polymer powder to the storage hopper for production. This entire system achieves automatic addition of polymer powder, avoiding the risks of scratches that may occur with manual bag breaking, greatly reducing manual intervention, effectively lowering labor intensity, and improving work efficiency.

Description

Technical Field

[0001] This application relates to the field of tertiary oil recovery technology, specifically to an automatic polymer dry powder addition system. Background Technology

[0002] Tertiary oil recovery is a technology that uses chemicals to improve the properties of oil, gas, water, and rock interactions, thereby increasing oil recovery rates. Polymer flooding is an important technology in tertiary oil recovery, which involves injecting polymers into the formation to displace oil. Macroscopically, polymers mainly increase the viscosity of the displacing fluid, thereby reducing the mobility ratio between the displacing and displaced fluids and expanding the swept volume. Microscopically, due to its viscoelasticity, it stretches the oil film or droplets during flow, thereby increasing the carrying capacity and improving the micro-washing efficiency.

[0003] In related technologies, polymer powder is typically added manually during the preparation of polymer mother liquor. This method requires specialized personnel to monitor and add the powder, resulting in high labor intensity, high costs, and low efficiency.

[0004] Therefore, it is necessary to develop a polymer dry powder addition system that can reduce manual labor intensity while improving work efficiency. Summary of the Invention

[0005] To address the aforementioned problems, this application provides an automated polymer dry powder dispensing system to reduce manual labor and improve operational efficiency. The embodiments of this application employ the following technical solutions:

[0006] An automatic addition system for polymer dry powder, the system comprising a feeding unit, a conveying unit, and a control unit;

[0007] The feeding unit includes a storage hopper and a first level gauge disposed in the storage hopper. The first level gauge is used to send first level information to the control unit when the amount of polymer dry powder in the storage hopper is lower than a first preset value.

[0008] The conveying unit includes a handling device, a unpacking machine, and a feeder. The inlet of the feeder is connected to the hopper of the unpacking machine, and the outlet of the feeder is connected to the storage hopper. The handling device is used to transport the polymer dry powder package to the cutter of the unpacking machine during feeding. The unpacking machine is used to cut the packaging bag of the polymer dry powder package and supply the obtained polymer dry powder to the feeder. The feeder is used to convey the polymer dry powder to the storage hopper.

[0009] The control unit is used to send start information to the conveying unit after receiving the first material level information. The start information is used to indicate the start of the feeding process.

[0010] Optionally, the system further includes an unloading unit, and the conveying unit further includes a conveying device;

[0011] The unloading unit includes a lifting assembly, a lifting device, and a pallet.

[0012] The lifting device is used to secure the tray containing polymer dry powder packets;

[0013] The lifting assembly is used to lift the spreader with the pallet fixed on it to a preset height and place the pallet on the conveying device;

[0014] The conveying device is used to convey the tray to the delivery area.

[0015] Optionally, the tray has at least two first insertion holes penetrating a first side and a second side of the tray, wherein the first side and the second side are disposed opposite to each other;

[0016] The lifting device includes an upper fixing part and a lower fixing part that are parallel to each other, as well as a side fixing part; the upper and lower ends of the side fixing part are respectively connected to the upper fixing part and the lower fixing part, and the side fixing part is perpendicular to the upper fixing part and the lower fixing part; the space formed between the upper fixing part, the lower fixing part and the side fixing part is used to accommodate polymer dry powder packets placed on a tray; the lower fixing part includes at least two parallel strip-shaped insertion parts, each of the insertion parts being adapted to be inserted into one of the first insertion holes.

[0017] Optionally, the lifting assembly includes a telescopic boom and a hook disposed on the free end of the telescopic boom;

[0018] The upper fixing part is a triangular structure composed of multiple rods, wherein one of the rods is connected to the side fixing part, and a lifting ring adapted to the hook is provided at the vertex of the triangle opposite to the rod connected to the side fixing part.

[0019] Optionally, the conveying device includes a foldable first conveying device and a fixed second conveying device;

[0020] The first conveying device is used to convey the pallet from the lifting assembly to the second conveying device;

[0021] The second conveying device is used to convey the tray from the first conveying device to the dispensing area during feeding.

[0022] Optionally, the second conveying device is also used to store the tray containing the polymer dry powder package when no material is added.

[0023] Optionally, the conveying unit includes a plurality of conveying devices and a transfer machine disposed between the plurality of conveying devices;

[0024] The transfer machine is used to transfer the pallet between the plurality of conveying devices.

[0025] Optionally, the handling device includes a camera, a suction cup, and a mechanical gripper;

[0026] The camera is used to identify and locate the polymer dry powder packages to be transported.

[0027] The suction cup is used to pick up the polymer dry powder package to a preset height;

[0028] The mechanical gripper is used to pick up the polymer dry powder package while the suction cup lifts it to a preset height, and then delivers the polymer dry powder package to the cutter of the unpacking machine.

[0029] Optionally, the system further includes a waste bag recycling unit;

[0030] The waste bag recycling unit includes a first conveyor belt, a second conveyor belt, a baler located between the first and second conveyor belts, and a waste bag collection box located at the end of the second conveyor belt.

[0031] The mechanical gripper is also used to flatten and organize the disassembled packaging bags, and place the flattened packaging bags onto the first conveyor belt;

[0032] The first conveyor belt is used to transport a batch of flattened and sorted packaging bags to the packing machine;

[0033] The packing machine is used to bundle and pack the bags from the first conveyor belt;

[0034] The second conveyor belt is used to transport the bundled and packaged bags to the waste bag collection box;

[0035] The waste bag collection bin is used to collect packaged bags after they have been packed.

[0036] Optionally, the system further includes an empty disk recycling unit;

[0037] The empty disk recycling unit includes a disk stacker and a second conveyor belt;

[0038] The pallet stacker is used to collect empty pallets in batches and transport the collected empty pallets to the third conveyor belt;

[0039] The third conveyor belt is used to transport empty pallets from the stacking machine to the outside of the system.

[0040] The beneficial effects of the embodiments of this application are at least as follows:

[0041] This application discloses an automatic polymer powder adding system. The system includes a feeding unit, a conveying unit, and a control unit. The feeding unit includes a storage hopper and a first level gauge installed within the hopper. The conveying unit includes a handling device, a unpacking machine, and a feeder. When the amount of polymer powder in the storage hopper is too low, the control unit controls the handling device to move the polymer powder package to the cutter of the unpacking machine based on the level information. The unpacking machine then cuts open the packaging bag of the polymer powder package and supplies the obtained polymer powder to the feeder. Finally, the feeder conveys the polymer powder to the storage hopper for production. Using this entire system, automatic addition of polymer powder is achieved, avoiding the risks of scratches that may occur from manual bag breaking, greatly reducing manual intervention, effectively reducing labor intensity, and improving work efficiency. Attached Figure Description

[0042] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0043] Figure 1 This is a schematic diagram of an automatic addition system for polymer dry powder provided in one embodiment of this application;

[0044] Figure 2 A schematic diagram of an automatic addition system for polymer dry powder provided in another embodiment of this application;

[0045] Figure 3 A schematic diagram of a lifting device and pallet provided in one embodiment of this application;

[0046] Figure 4 This is a schematic diagram of an automatic addition system for polymer dry powder provided in another embodiment of this application.

[0047] The reference numerals in the attached figures represent:

[0048] 1-Feeding unit; 11-Storage hopper;

[0049] 2-Conveying unit; 21-Handling equipment; 22-Unpacking machine; 23-Loader; 24-Conveying device; 241-First conveying device; 242-Second conveying device; 25-Transfer machine;

[0050] 3-Control unit;

[0051] 4-Unloading unit; 41-Lifting assembly; 411-Telescopic boom; 412-Hook; 42-Lifting device; 421-Upper fixing part; 422-Lower fixing part; 4221-Plug-in part; 42211-Plug-in connector; 423-Side fixing part; 424-Lifting ring; 43-Pallet; 431-First plug-in hole; 432-Second plug-in hole;

[0052] 5-Waste bag recycling unit; 51-First conveyor belt; 52-Second conveyor belt; 53-Bagging machine; 54-Waste bag collection box;

[0053] 6- Empty disk recycling unit; 61- Disk stacking machine; 62- Third conveyor belt. Detailed Implementation

[0054] To make the objectives, technical solutions, and advantages of this application clearer, the application will be further described in detail below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0055] In the embodiments of this application, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. The term "multiple" refers to two or more unless otherwise expressly defined.

[0056] In the field of tertiary oil recovery technology, polymer flooding is often required to increase production. However, in related technologies, the polymer powder is usually added manually during the preparation of the polymer mother liquor. This method requires specialists to monitor and add the polymer, resulting in high labor intensity, high costs, and low operational efficiency.

[0057] To address the aforementioned technical problems, this application provides an automatic polymer dry powder dispensing system, such as... Figure 1 As shown, the system includes a feeding unit 1, a conveying unit 2, and a control unit 3.

[0058] The feeding unit 1 includes a storage hopper 11 and a first level gauge (not shown in the figure) installed in the storage hopper 11. The first level gauge is used to send first level information to the control unit 3 when the amount of polymer dry powder in the storage hopper 11 is lower than a first preset value, so as to instruct the control unit 3 to control the conveying unit 2 when the amount of polymer dry powder in the storage hopper 11 is too low, so as to realize the automatic addition of polymer dry powder.

[0059] As an example, the feeding unit 1 may also include a second level gauge (not shown in the figure) disposed in the storage hopper 11. The second level gauge is used to send second level information to the control unit 3 when the amount of polymer dry powder in the storage hopper 11 is higher than a second preset value, so as to instruct the control unit 3 to control the conveying unit 2 to stop the addition of polymer dry powder when the amount of polymer dry powder in the storage hopper 11 is sufficient.

[0060] By monitoring the amount of polymer dry powder in the storage hopper 11 in real time using the first and second level gauges, the control unit 3 can be instructed to start feeding when the amount of dry powder is too low; and the control unit 3 can be instructed to stop feeding when the amount of dry powder is sufficient, thus achieving full automation of starting and stopping feeding.

[0061] like Figure 1 As shown, the conveying unit 2 includes a handling device 21, a unpacking machine 22, and a feeder 23. The inlet of the feeder 23 is connected to the hopper of the unpacking machine 22, and the outlet of the feeder 23 is connected to the storage hopper 11. Through the bridging effect of the feeder 23, the polymer dry powder can be transferred from the hopper of the unpacking machine 22 to the storage hopper 11.

[0062] The handling device 21 is used to transport the polymer dry powder package to the cutter of the unpacking machine 22, so that the unpacking machine 22 can cut the packaging bag of the polymer dry powder package, and then supply the obtained polymer dry powder to the feeder 23, and then the feeder 23 conveys the polymer dry powder to the storage hopper 11 so that the amount of polymer dry powder in the storage hopper 11 meets the operation requirements.

[0063] The unpacking machine 22 can be a common type of unpacking machine in this field. The cutter of the unpacking machine can be in a "well" shape, which allows for effective cutting of the packaging bag. The cutter of the unpacking machine can be made of tungsten carbide, which has good cutting performance and a long service life.

[0064] The feeder 23 can be a spiral feeder commonly used in this field.

[0065] After receiving the first material level information, the control unit 3 sends a start message to the conveying unit 2. This start message indicates the start of the feeding process, causing each device in the conveying unit 2 to begin performing its respective task. Specifically, the handling device 21 begins handling the polymer dry powder packages, the unpacking machine 22 begins cutting the packaging bags of the polymer packages, and the feeder 23 begins feeding the polymer dry powder into the storage hopper 11. After receiving the second material level information, the control unit 3 sends a stop message to the conveying unit 2. This stop message indicates the termination of the addition of polymer dry powder, causing each device in the conveying unit 2 to stop its feeding task. Specifically, the handling device 21 stops handling the polymer dry powder packages, the unpacking machine 22 stops cutting the packaging bags of the polymer packages, and the feeder 23 stops feeding the polymer dry powder into the storage hopper 11.

[0066] The entire system described above enables the automatic addition of polymer powder, avoiding the risks of scratches that may occur when manually breaking bags, greatly reducing manual intervention, thus effectively reducing labor intensity and improving work efficiency.

[0067] To improve the efficiency of unloading polymer dry powder packages from transport vehicles and ensure the stability of the unloading process, as an example, the automatic polymer dry powder addition system of this application may further include an unloading unit 4, and the conveying unit 4 may further include a conveying device 24. Figure 2 As shown, the unloading unit 4 includes a lifting assembly 41, a lifting device 42, and a pallet 43. The pallet 43 serves as the transport carrier for the polymer dry powder packages. During transportation, batches of polymer dry powder packages are divided into multiple pallets 43, and then transported to a designated location using means of transport such as trucks or vans. This pallet-based handling method effectively saves space occupied by the polymer dry powder packages and improves operational efficiency. The lifting device 42 is used to secure the pallets 43 containing the polymer dry powder packages to ensure stability during handling. The lifting assembly 41 lifts the lifting device 42 with the pallets 43 secured to it to a preset height and places the pallets 43 on the conveying device 24. The conveying device 24 then transports the pallets 43 containing the polymer dry powder packages to the delivery area for handling by the transport equipment 21 when additional material is needed.

[0068] Optionally, multiple polymer dry powder packets can be stacked in a five-tiered stack within a pallet 43. This allows for the placement of more polymer dry powder packets on a single pallet 43 while ensuring the stability of the stack. Furthermore, this five-tiered stacking method facilitates handling by the transport equipment 21 during subsequent feeding processes.

[0069] like Figure 3As shown, as an example, the lifting device 42 may include an upper fixing part 421 and a lower fixing part 422 that are parallel to each other, as well as a side fixing part 423. The upper and lower ends of the side fixing part 423 are connected to the upper fixing part 421 and the lower fixing part 422, respectively, and the side fixing part 423 is perpendicular to the upper fixing part 421 and the lower fixing part 422, thereby forming a clamping space between the upper fixing part 421, the lower fixing part 422 and the side fixing part 423. This clamping space is used to accommodate polymer dry powder packets placed on the tray 43.

[0070] To securely fasten pallet 43 to spreader 42, such as Figure 3 As shown, the pallet 43 has at least two first insertion holes 431 penetrating the first side and the second side of the pallet 43, wherein the first side and the second side are arranged opposite to each other; the lower fixing part 422 of the lifting device 42 includes at least two parallel strip-shaped insertion parts 4221, each insertion part 4221 being adapted to be inserted into a first insertion hole 431, thereby achieving a firm connection between the pallet 43 and the lifting device 42 through the cooperation of the insertion part 4221 and the first insertion hole 431.

[0071] To ensure a smooth fit between the connector 4221 and the first connector hole 431, as an example, such as Figure 3 As shown, each plug part 4221 has a rounded pointed plug 42211 on its outward-facing end, which makes it easier for the plug part 4221 to be inserted into the first plug hole 431.

[0072] Optionally, such as Figure 3 As shown, the pallet 43 may also have at least two second insertion holes 432 penetrating the third and fourth sides of the pallet 43, wherein the third and fourth sides are arranged opposite to each other. It should be noted that the pallet 43 here is a load-bearing body with a certain thickness and sufficient strength, and the aforementioned first, second, third, and fourth sides are the four sides of this load-bearing body. With this arrangement, the pallet 43 containing polymer dry powder packages can be lifted regardless of which side the lifting assembly 41 is located on, providing great flexibility.

[0073] To meet different strength requirements of the lifting device, the lower fixing part 422 of the lifting device 42 may include three or more parallel strip-shaped insertion parts 4221, and a corresponding first insertion hole 431 or second insertion hole 432 is provided on the side of the pallet. In other words, the number of insertion parts 4221 of the lower fixing part can be reasonably set according to the actual strength requirements.

[0074] Understandably, when the insertion part 431 is inserted into the first insertion hole 431 or the second insertion hole 432 on the side of the tray 43, the polymer dry powder package placed on the tray 43 can be accommodated in the clamping space formed by the three fixing parts of the lifting device 42. At this time, the upper fixing part 421, the lower fixing part 422 and the side fixing part 423 can all fit tightly with the tray 43 containing the polymer dry powder package, thereby achieving a secure fixation of the tray.

[0075] To achieve the lifting of spreader 42, as an example, such as Figure 2 As shown, the lifting assembly 41 includes a telescopic boom 411 and a hook 412 disposed on the free end of the telescopic boom 411. Figure 3 As shown, the upper fixing part 421 of the lifting device 42 is a triangular structure composed of multiple rods. One of the rods is connected to the side fixing part, and a lifting ring 424 adapted to the hook 412 is provided at the vertex of the triangle opposite to the rod connected to the side fixing part. Thus, the lifting assembly 41 can adjust the distance between the hook 412 and the object to be lifted, i.e., the lifting device 42, by relying on the telescopic arm 411. After locking the target, the lifting device 42 can be lifted by the cooperation of the hook 412 and the lifting ring 424.

[0076] Optionally, such as Figure 3 As shown, the side fixing part 423 of the lifting device 42 is a square frame structure formed by multiple rods, and two intersecting and perpendicular reinforcing rods are provided in the center of the square frame. The two ends of each reinforcing rod are connected to a set of parallel sides of the square frame. It can be understood that the two ends of the two reinforcing rods are connected to different sets of parallel sides.

[0077] To save on equipment costs, as an example, the lifting assembly 41 can be directly installed on the transport vehicle carrying the pallet 43 containing the polymer dry powder package. In this way, when the transport vehicle arrives at the designated location, the lifting assembly 41 on the transport vehicle can be used to lift the pallet 43 directly, without the need to design a separate lifting device.

[0078] It should be understood that the feeding unit 1 and conveying unit 2 of the automatic polymer dry powder dispensing system are located inside the warehouse, and the designated location reached by the transport vehicle refers to the warehouse entrance. To efficiently transfer polymer dry powder packages unloaded from the transport vehicle to the dispensing area, as an example, such as... Figure 4 As shown, the conveying device 24 may include a foldable first conveying device 241 and a fixed second conveying device 242.

[0079] The first conveying device 241 is used to transport the pallet 43 from the lifting assembly 41 to the second conveying device 242. The second conveying device 242 is used to transport the pallet 43 from the first conveying device 241 to the delivery area during material feeding. That is, after the lifting assembly 41 lifts the lifting device 42 with the pallet 43 fixed on it to a preset height, it places the pallet 43 and the polymer dry powder package on it as a whole on the first conveying device 241, and then the first conveying device 241 conveys the pallet 43 to the second conveying device 242. When material feeding is required, the second conveying device 242 continuously transports the pallet 43 containing the polymer dry powder package to the delivery area.

[0080] The working principles of the foldable first conveying device 241 and the fixed second conveying device 242 are explained below:

[0081] The first conveying device 241 is foldable, making it convenient and flexible to use. A foldable conveyor, commonly used in the field, can be selected. When it is necessary to transfer polymer dry powder packages from the transport vehicle to the warehouse containing the feeding unit 1 and the conveying unit 2, the foldable first conveying device 241 can extend outwards to protrude from the warehouse, facilitating the lifting assembly 41 to place the pallet 43 containing the polymer dry powder packages onto the first conveying device 241. When it is not necessary to unload the pallet 43 from the transport vehicle, the first conveying device 241 is in a non-extended state, and at this time, the first conveying device 241 is entirely inside the warehouse. In other words, the first conveying device 241 only extends outwards to the outside of the warehouse when operation is required; otherwise, it remains entirely inside the warehouse. This effectively prevents the device from being corroded by sunlight, wind, rain, and other natural environmental factors, thereby extending its service life and saving floor space.

[0082] As an example, a surveillance camera can be installed at the warehouse entrance. When the camera detects that a transport vehicle loaded with pallets 43 is parked at the warehouse entrance, it sends a control command to the system's control unit 2, so that the control unit 2 controls the first conveying device 241 to extend outward, thereby achieving automatic control and reducing the intensity of manual labor.

[0083] The fixed second conveyor 242 is installed inside the warehouse and can be composed of components such as a frame, conveyor chain / rollers, tensioning device, and transmission device. It mainly uses a friction-driven continuous method to transport materials. The device is relatively heavy and stable, thus it can smoothly convey the pallet 43 containing polymer dry powder packages. When feeding is required, the second conveyor 242 is in operation, continuously conveying polymer dry powder packages to the handling equipment 21.

[0084] As an example, when no feeding is required, the second conveyor 242 can serve as a carrier for the temporary storage of pallets 43 containing polymer dry powder packages. In other words, multiple pallets 43 containing polymer dry powder packages to meet operational needs, unloaded from the transport vehicle, can be temporarily stored on the second conveyor 242. When feeding is needed, simply activating the second conveyor 242 directly transports the pallets 43 without needing to transfer them back to the second conveyor 242, which is very convenient and highly efficient. Furthermore, using the second conveyor 242 to directly store the pallets 43 containing the polymer dry powder packages effectively saves floor space, especially suitable for situations with limited warehouse space. In addition, throughout the entire conveying process, the polymer dry powder packages are transported using pallets 43 as carriers, improving conveying efficiency while also saving floor space.

[0085] It is understandable that the relative positions of the first conveying device 241 and the second conveying device 242 should facilitate the transfer of materials between them. For example, the second conveying device 242 is located immediately behind the first conveying device 241 in the material conveying direction, so that the tray 43 can smoothly transition from the first conveying device 241 to the second conveying device 242.

[0086] It should be understood that the first conveying device 241 only serves as an intermediate transition for transporting the tray containing the polymer dry powder package to the second conveying device 242. Therefore, the intensity of the first conveying device 241 is relatively lower than that of the second conveying device 242.

[0087] By employing a combination of a foldable first conveyor and a fixed second conveyor, along with a pallet-based carrying method, the polymer dry powder packages can be conveyed, which not only improves conveying efficiency but also effectively saves the floor space occupied by the polymer dry powder packages.

[0088] To improve transmission efficiency, as an example, such as Figure 4 As shown, the conveying unit 2 may include multiple conveying devices 24, and the simultaneous operation of multiple conveying devices 24 can effectively improve conveying efficiency. To transfer the pallet between the multiple conveying devices 24, a transplanter 25 can be set between the multiple conveying devices 24. The transplanter 25 can change the direction of travel of the items, mainly by rotating the pallet 43 by 90°. The transplanter 25 can be a common transplanter model in the art.

[0089] As an example, the handling device 21 may include a camera, a suction cup, and a mechanical gripper. The camera is used to identify and locate the polymer dry powder package to be handled, so that the suction cup and mechanical gripper can accurately lock onto the polymer dry powder package. The suction cup is used to lift the polymer dry powder package to a preset height, and the mechanical gripper is used to grab the polymer dry powder package while the suction cup lifts it to the preset height, and deliver the polymer dry powder package to the cutter of the unpacking machine 22, so that the unpacking machine 22 cuts open the packaging bag of the polymer dry powder package. After the packaging bag is cut open, the mechanical gripper of the handling device 21 shakes the packaging bag so that the dry powder inside the bag can fall completely into the hopper of the unpacking machine 22. It should be noted that during the operation, the suction cups of the handling device 21 first pick up the polymer dry powder package. However, considering the large total weight of the tray 43 and the polymer dry powder package placed on it, the suction force of the suction cups alone may not be sufficient to ensure the stability of the polymer dry powder package during handling. Therefore, the mechanical gripper is used to grasp the polymer dry powder package that has been picked up to a certain height to ensure stability. In other words, the stability of the handling is ensured by the combined action of the suction cups and the mechanical gripper of the handling device 21 during the handling of the polymer dry powder package. In particular, for the convenience of handling, the second conveying device 242 can transport the tray 43 containing the polymer dry powder package to the working area of ​​the handling device 21, so that the suction cups of the handling device 21 can pick up the polymer dry powder package.

[0090] To achieve recycling, as an example, such as Figure 4 As shown, the automatic polymer powder addition system may also include a waste bag recycling unit 5. This waste bag recycling unit 5 includes a first conveyor belt 51, a second conveyor belt 52, a baler 53 located between the first and second conveyor belts 51 and 52, and a waste bag collection bin 54 located at the end of the second conveyor belt 52. The mechanical gripper of the handling equipment 21 shakes the polymer powder from the packaging bags into the hopper of the unpacking machine 22, then flattens and arranges the empty packaging bags and places them on the first conveyor belt 51. When a certain batch of packaging bags arrives on the first conveyor belt 51, the first conveyor belt 51 conveys these packaging bags together to the baler 53, where the baler 53 bundles and packages them. The second conveyor belt 52 transports the bundled packaging bags to the waste bag collection bin 54, where the waste bag collection bin 54 collects the bundled packaging bags for subsequent reuse.

[0091] It is understandable that the relative position between the first conveyor belt 51 and the packaging machine 53 is conducive to the transport of packaging bags, for example, by setting them on the same straight line. Furthermore, since the strength requirements for the two conveyor belts are not high, common belt conveyor belts in this field can be selected.

[0092] To prevent empty pallets from piling up in the warehouse, as an example, such as Figure 4As shown, the automatic powder addition system may also include an empty tray recycling unit 6 to process empty trays in a timely manner.

[0093] The empty pallet recycling unit 6 includes a pallet stacker 61 and a second conveyor belt 62. The pallet stacker 61 collects empty pallets in batches and transports the collected empty pallets to the second conveyor belt 62. The second conveyor belt 62 then transports the empty pallets to the outside of the system, thereby enabling timely and efficient collection of empty pallets and preventing them from piling up in the warehouse.

[0094] Considering that polymer powder without sealed packaging bags is easily dispersed into the air during the entire feeding process, firstly, this floating powder is easily inhaled by the human body, which may affect human health; secondly, this results in a portion of the polymer powder not being utilized, causing some waste. To solve the above problems, as an example, the automatic polymer powder feeding system can also include a dust removal unit (not shown in the figure). This dust removal unit can adsorb the polymer powder floating in the air and dispose of the adsorbed polymer powder into the storage hopper 11, thereby preventing the powder from being inhaled and affecting human health, and improving the utilization rate of the polymer powder.

[0095] As an example, the dust removal unit may include a negative pressure suction device (not shown) that can use negative pressure to adsorb dry powder floating in the air.

[0096] The following describes the usage of the automatic addition system for polymer dry powder of this application. Of course, this method is only illustrative and does not constitute a substantial limitation on this application.

[0097] This method mainly includes the following steps:

[0098] Inbound Process: The transport equipment carrying pallets containing polymer dry powder packets stops at the warehouse door, which opens automatically. The first conveyor inside the warehouse extends outward. Using lifting components and hoists, the pallets containing polymer dry powder packets are placed onto the first conveyor, which then transfers them to a second conveyor. The second conveyor temporarily stores these pallets for subsequent refilling.

[0099] For the sake of simplicity, the term "tray" as used below refers to a tray on which polymer powder packets are placed, while "empty tray" refers to a tray on which all polymer powder packets have been unloaded.

[0100] In the material handling process: When the amount of polymer powder in the storage hopper is too low, the first level indicator sends a level message to the control unit, which then sends a start message to the conveying unit instructing the material to begin feeding. During feeding, the second conveying device sequentially transports its trays to the handling area of ​​the material handling equipment. The handling equipment first uses a camera to identify and locate the polymer powder packages, then uses suction cups to lift the packages from the trays to a preset height. Next, a mechanical gripper holds the package, and finally, with the combined action of the suction cups and the mechanical gripper, the package is delivered to the cutter of the unpacking machine.

[0101] Bag breaking process: After the cutter of the unpacking machine cuts multiple long slits in the polymer package, the mechanical gripper of the handling equipment shakes the package, so that the polymer dry powder inside can fall completely into the hopper of the unpacking machine.

[0102] Material conveying process: The feeder transports the polymer powder from the unpacking machine hopper to the storage hopper. When the amount of polymer powder in the storage hopper is sufficient, the second level indicator sends a second level information to the control unit. Upon receiving the second level information, the control unit sends a termination message to the conveying unit, instructing the addition of polymer powder to cease. Based on this termination message, the second conveying device stops conveying the pallet, the handling equipment stops handling the polymer powder packages, the unpacking machine stops cutting the packaging bags of the polymer packages, and the feeder stops conveying polymer powder to the storage hopper.

[0103] Waste bag recycling: The mechanical gripper of the handling equipment shakes the packaging bags to ensure the dry powder inside falls fully into the hopper of the unpacking machine. The empty bags are then laid flat and arranged on the first conveyor belt. When a certain batch of bags arrives on the first conveyor belt, they are conveyed together to the baling machine. The baling machine bundles and packs the bags and then conveys them to the second conveyor belt. The second conveyor belt transports the bundled bags to a waste bag collection bin, where the bundled bags are collected for subsequent reuse.

[0104] Empty pallet collection: After all the polymer dry powder packets on the pallets have been unloaded, the empty pallets are collected using a pallet stacker. Once the collected empty pallets are stacked to a certain number of layers, the stacker transports them together to a third conveyor belt. The third conveyor belt then transports these empty pallets outside the system, thus enabling timely and efficient collection of empty pallets and preventing their accumulation in the warehouse.

[0105] Dust removal process: During the feeding process, the negative pressure dust collection device of the dust removal unit adsorbs the dust generated during feeding and puts the adsorbed dust into the storage hopper. This can prevent the dust from being inhaled into the human body and affecting health, and also avoid the waste of polymer dry powder.

[0106] This application discloses an automatic polymer powder adding system, which includes a feeding unit, a conveying unit, and a control unit. The feeding unit includes a storage hopper and a first level gauge installed within the hopper. The conveying unit includes a handling device, a unpacking machine, and a feeder. When the amount of polymer powder in the storage hopper is too low, the control unit controls the handling device to move the polymer powder package to the cutter of the unpacking machine based on the level information. The unpacking machine then unpacks the polymer powder package and supplies the polymer powder to the feeder. Finally, the feeder delivers the polymer powder to the storage hopper for production. This entire system achieves automatic addition of polymer powder, avoiding the risks of scratches that may occur with manual bag breaking, greatly reducing manual intervention, effectively lowering labor intensity, and improving work efficiency.

[0107] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An automatic polymer dry powder dispensing system, characterized in that, The system includes a feeding unit (1), a conveying unit (2), and a control unit (3); The feeding unit (1) includes a storage hopper (11) and a first level gauge disposed in the storage hopper (11). The first level gauge is used to send first level information to the control unit (3) when the amount of polymer dry powder in the storage hopper (11) is lower than a first preset value. The conveying unit (2) includes a handling device (21), a unpacking machine (22), and a feeder (23). The inlet of the feeder (23) is connected to the hopper of the unpacking machine (22), and the outlet of the feeder (23) is connected to the storage hopper (11). The handling device (21) is used to transport the polymer dry powder package to the cutter of the unpacking machine (22) during feeding. The unpacking machine (22) is used to cut the packaging bag of the polymer dry powder package and supply the obtained polymer dry powder to the feeder (23). The feeder (23) is used to convey the polymer dry powder to the storage hopper (11). The control unit (3) is used to send start information to the conveying unit (2) after receiving the first material level information. The start information is used to indicate the start of the feeding process. The system also includes an unloading unit (4), and the conveying unit (2) further includes a conveying device (24); The unloading unit (4) includes a lifting assembly (41), a lifting device (42), and a pallet (43); The lifting device (42) is used to secure the tray (43) containing the polymer dry powder package; The lifting assembly (41) is used to lift the lifting device (42) with the pallet (43) fixed thereon to a preset height and place the pallet (43) onto the conveying device (24); The conveying device (24) is used to convey the tray (43) to the delivery area; The conveying device (24) includes a foldable first conveying device (241) and a fixed second conveying device (242); The foldable first conveying device (241) is used to convey the pallet (43) from the lifting assembly (41) to the second conveying device (242); The fixed second conveying device (242) is used to convey the tray (43) from the foldable first conveying device (241) to the dispensing area during feeding; The fixed second conveying device (242) is also used to store the tray (43) containing the polymer dry powder package when no material is added; A portion of the foldable first conveying device (241) is located inside the warehouse, and another portion is capable of extending outward to extend out of the warehouse and folding inward to retract into the warehouse. The fixed second conveyor (242) is located inside the warehouse; A camera is installed at the warehouse entrance. When the camera detects that a transport vehicle carrying the pallet (43) is parked at the warehouse entrance, it sends a control command to the control unit (3) so that the control unit (3) controls the foldable first conveyor (241) to extend outward.

2. The system according to claim 1, characterized in that, The tray (43) has at least two first insertion holes (431) penetrating a first side and a second side, wherein the first side and the second side are disposed opposite to each other; The lifting device (42) includes an upper fixing part (421) and a lower fixing part (422) that are parallel to each other, and a side fixing part (423); the upper and lower ends of the side fixing part (423) are connected to the upper fixing part (421) and the lower fixing part (422) respectively, and the side fixing part (423) is perpendicular to the upper fixing part (421) and the lower fixing part (422); the space formed between the upper fixing part (421), the lower fixing part (422) and the side fixing part (423) is used to accommodate polymer dry powder packets placed on a tray (43); the lower fixing part (422) includes at least two parallel strip-shaped insertion parts (4221), each of the insertion parts (4221) being adapted to be inserted into one of the first insertion holes (431).

3. The system according to claim 2, characterized in that, The lifting assembly (41) includes a telescopic boom (411) and a hook (412) disposed on the free end of the telescopic boom (411); The upper fixing part (421) is a triangular structure composed of multiple rods, wherein one of the rods is connected to the side fixing part (423), and a lifting ring (424) adapted to the hook (412) is provided at the vertex of the triangle opposite to the rod connected to the side fixing part (423).

4. The system according to claim 1, characterized in that, The conveying unit (2) includes a plurality of conveying devices (24) and a transfer machine (25) disposed between the plurality of conveying devices (24); The transfer machine (25) is used to transfer the tray (43) between the plurality of the transfer devices (24).

5. The system according to claim 1, characterized in that, The handling device (21) includes a suction cup and a mechanical gripper; The suction cup is used to pick up the polymer dry powder package to a preset height; The mechanical gripper is used to pick up the polymer dry powder package while the suction cup lifts it to a preset height, and then delivers the polymer dry powder package to the cutter of the unpacking machine.

6. The system according to claim 5, characterized in that, The system also includes a waste bag recycling unit (5); The waste bag recycling unit (5) includes a first conveyor belt (51), a second conveyor belt (52), a baler (53) located between the first conveyor belt (51) and the second conveyor belt (52), and a waste bag collection box (54) located at the end of the second conveyor belt (52). The mechanical gripper is also used to flatten and arrange the empty packaging bags and place the flattened packaging bags onto the first conveyor belt (51); The first conveyor belt (51) is used to convey a batch of flattened and sorted packaging bags to the packing machine (53); The packing machine (53) is used to bundle and pack the bags from the first conveyor belt (51); The second conveyor belt (52) is used to transport the bundled and packaged bags to the waste bag collection box (54); The waste bag collection box (54) is used to collect the packaged bags after packaging.

7. The system according to claim 1, characterized in that, The system also includes an empty disk recycling unit (6); The empty disk recycling unit (6) includes a disk stacker (61) and a third conveyor belt (62); The pallet stacker (61) is used to collect empty pallets in batches and transport the collected empty pallets to the third conveyor belt (62); The third conveyor belt (62) is used to transport empty pallets from the stacking machine (61) to the outside of the system.

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