Transfer device and powder treatment system

Abstract

The utility model relates to the technical field of conveying devices, and discloses a transfer device and a powder processing system.The transfer device comprises a stock bin, an exhaust filter and a butt joint structure, the stock bin comprises a bin body with a feeding port, a discharging port and an exhaust port, and the butt joint structure comprises a feeding connecting pipe and a feeding valve; when the transfer device is used, the transfer device can be in butt joint with the upper equipment through the feeding connecting pipe of the butt joint structure, the feeding valve is opened to enable the feeding port to be communicated with the upper equipment through the feeding connecting pipe, the feeding connecting pipe can be conveniently in butt joint with the upper equipment in a matched mode, and the feeding valve can be closed and the feeding port can be blocked after feeding is completed. Therefore, the stock bin is sealed in time before the feeding connecting pipe is separated from upper equipment, raised dust is sealed in the bin body, and the raised dust in the bin body is prevented from being scattered outwards from the feeding port. The dust generated in the bin body can be discharged through the exhaust port, and dust particles are filtered through the exhaust filter, so that the dust in the bin body can be effectively reduced, and dust leakage is further reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of conveying devices, in particular to a transfer device and a powder material processing system. Background Art

[0002] In related technologies, pneumatic conveying is used to transport powder materials during the production process. For example, in the production process of lithium battery raw material powder, the energy of the airflow is used to transport the powder material in the direction of the airflow in a closed pipe. In this transportation method, the conveying pipe often becomes blocked, resulting in poor transportation. In some cases, static electricity generated by the friction between the powder and the inner wall of the pipe can easily break through the pipe wall, causing powder leakage. In other technologies, mobile silos are used to transport powder materials, which effectively avoids the above-mentioned problems of pipeline transportation. However, in application, dust is generated when the powder enters the silo, and dust leakage often occurs at the feed inlet. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model provides a transfer device that effectively reduces dust leakage.

[0004] The utility model also provides a powder material processing system comprising the transfer device.

[0005] In a first aspect, a transfer device according to an embodiment of the present invention includes a silo, an exhaust filter, and a docking structure, wherein the silo includes a silo body and a first connecting portion, the silo body having an inner cavity and provided with a feed port, a discharge port, and an exhaust port respectively connected to the inner cavity, and the first connecting portion is arranged around the outer periphery of the feed port and connected to the silo body;

[0006] The exhaust filter is connected to the chamber body and communicated with the exhaust port, and is used to filter the gas discharged through the exhaust port;

[0007] The docking structure includes a feed valve and a feed pipe. The interior of the feed pipe has a feed channel that runs through both ends of the feed pipe. The feed valve is connected between the first connecting part and the feed pipe. The feed pipe is extended upward to be suitable for docking with the upper equipment. The feed valve is used to switch the feed channel and the feed port.

[0008] The transfer device of the embodiment of the present utility model has at least the following beneficial effects: the transfer device can be used to receive powder from the upper equipment, store the powder or transfer the powder to the lower equipment for discharge. When in use, the feed pipe of the docking structure can be docked with the upper equipment, the feed valve is opened to connect the feed port with the upper equipment through the feed channel, the feed pipe extending upward can be conveniently docked with the upper equipment, and the feed valve can be closed after the feeding is completed to block the feed channel and the feed port, so that the silo can be closed in time before the feed pipe is separated from the upper equipment, and the dust in the silo can be sealed to prevent the dust in the silo from being dispersed outward from the feed port. The dust generated in the silo can be discharged through the exhaust port, and the dust particles can be filtered through the exhaust filter, thereby effectively reducing the dust in the silo and further reducing dust leakage.

[0009] According to the transfer device of the embodiment of the present invention, the warehouse body is further provided with a spare port communicating with the inner cavity, and the spare port is suitable for connecting to the interior of the upper equipment.

[0010] According to the transfer device of the embodiment of the present invention, the feed port, the exhaust port and the spare port are all arranged on the top wall of the warehouse body.

[0011] According to the transfer device of the embodiment of the present invention, the transfer device also includes an exhaust valve, which is connected between the exhaust port and the exhaust filter and is used to switch the exhaust port on and off.

[0012] According to the transfer device of the embodiment of the present invention, the silo also includes a second connecting part, which is arranged around the outer peripheral side of the discharge port and connected to the silo body; the transfer device also includes a discharge valve and a discharge pipe, and the interior of the discharge pipe has a discharge channel passing through the two ends of the discharge pipe, and the discharge valve is connected between the second connecting part and the discharge pipe, and the discharge valve is used to switch the discharge channel and the discharge port.

[0013] According to the transfer device of an embodiment of the present invention, the transfer device also includes a fluidizing device, which includes an air inlet pipe and a fluidizer, wherein the discharge port is located at the bottom of the silo body, the fluidizer is connected to the side wall of the silo body, and is located above the discharge port, and the air inlet pipe is connected to the fluidizer to be suitable for introducing compressed air into the fluidizer.

[0014] According to the transfer device of an embodiment of the present invention, the fluidizer includes at least two air butterfly devices, which are arranged at intervals on the side walls of the warehouse body, the air outlet of the air butterfly device is located on the inner side of the side wall, and the air inlet of the air butterfly device is located on the outer side of the side wall. The air inlet pipe ring is arranged on the outside of the side wall of the warehouse body and is connected to the air inlet of each air butterfly device.

[0015] According to the transfer device of the embodiment of the present invention, the transfer device further includes a weighing device, which is located outside the silo and connected to the silo, and is used to measure the weight of the powder in the silo.

[0016] According to the transfer device of the embodiment of the present invention, the transfer device also includes a lifting device, which is connected to the warehouse body and is used to drive the warehouse body to rise and fall to adjust the position of the feed pipe.

[0017] According to the transfer device of the embodiment of the present invention, the transfer device further includes casters, which are connected to the bottom of the lifting device.

[0018] In the second aspect, the powder processing system of the embodiment of the present invention includes an upper device and the above-mentioned transfer device. The upper device is provided with a discharge port for outputting powder, and the transfer device is suitable for sealing and docking with the discharge port through a feed pipe.

[0019] The powder processing system of the embodiment of the present invention has at least the following beneficial effects: by docking the transfer device with the upper equipment, the transfer device can realize the transfer of powder inside the upper equipment and effectively reduce dust leakage during powder transfer.

[0020] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic structural diagram of a transfer device according to an embodiment of the present invention;

[0022] Figure 2 for Figure 1 An exploded schematic diagram of the docking structure and the partial structure of the silo in the transfer device is shown;

[0023] Figure 3 Schematic diagram of the arrangement of the feed port, exhaust port and spare port of the silo in a transfer device according to one embodiment;

[0024] Figure 4 for Figure 1 A schematic diagram of the structure of the lifting device and casters in the transfer device is shown;

[0025] Figure 5 for Figure 1 An exploded schematic diagram of the partial structure of the discharge pipe, discharge valve and silo in the transfer device is shown;

[0026] Figure 6 This is an exploded schematic diagram of the partial structure of the exhaust filter, exhaust pipe, exhaust valve and silo in a transfer device according to one embodiment;

[0027] Figure 7 This is a schematic structural diagram of a transfer device according to another embodiment of the present invention;

[0028] Figure 8 for Figure 7 Side view of

[0029] Figure 9 for Figure 7 A schematic diagram of the fluidization device in FIG.

[0030] Figure 10 for Figure 7 The partially enlarged schematic diagram at point A in the figure shows part of the structure of the weighing device;

[0031] Figure 11 for Figure 8 Schematic diagram of casters and rails in;

[0032] Figure 12 for Figure 7 The partially enlarged schematic diagram at point B in FIG. 1 illustrates part of the structure of the fixing device.

[0033] Reference numerals:

[0034] Silo 101; silo body 102; inner cavity 103; feed port 104; discharge port 105; exhaust port 106; spare port 107; first connecting portion 108; second connecting portion 109; third connecting portion 110; top wall 111; side wall 112; support column 113;

[0035] Feed valve 201; feed pipe 202; butt pipe 203; connecting flange 204;

[0036] Exhaust filter 301; exhaust valve 302; exhaust pipe 303; transfer pipe 304; clamp 305;

[0037] Lifting device 401; first connecting member 402; second connecting member 403; lifting cylinder 404;

[0038] Caster 501;

[0039] Discharge valve 601; discharge pipe 602;

[0040] Fluidizing device 701; air inlet pipe 702; air inlet straight pipe 702-1; air inlet ring pipe 702-2; air butterfly device 703; pressure regulating valve 704; solenoid valve 705; air hammer 706;

[0041] Weighing device 801; fixing member 802; weighing module 803; supporting member 804;

[0042] Guide rail 901; guide groove 902; fixing device 903. DETAILED DESCRIPTION

[0043] The following will clearly and completely describe the concept and technical effects of the present invention in conjunction with the embodiments to fully understand the purpose, features, and effects of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, other embodiments obtained by those skilled in the art without inventive effort are also within the scope of protection of the present invention.

[0044] In the description of the embodiments of the present invention, if orientation descriptions are involved, the orientations or positional relationships indicated by "up", "down", "front", "back", "left", "right", etc. are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0045] In the description of the embodiments of the present utility model, if a certain feature is referred to as being "set", "fixed", "connected", or "installed" on another feature, it may be directly set, fixed, or connected on the other feature, or it may be indirectly set, fixed, connected, or installed on the other feature. In the description of the embodiments of the present utility model, if "several" is involved, it means more than one; if "multiple" is involved, it means more than two; if "greater than", "less than", or "exceeds" is involved, it should be understood as not including the number itself; if "above", "below", or "within" is involved, it should be understood as including the number itself. If "first" or "second" is involved, it should be understood as being used to distinguish technical features, and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0046] The present invention provides a transfer device and a powder handling system incorporating the transfer device. The transfer device receives powder from an upper device and can be used to store it or transfer it to a lower device for discharge, effectively reducing dust leakage. The transfer device in this embodiment of the present invention can be used in various industrial production processes involving the buffering, transfer, storage, and transportation of powders (e.g., raw material powders for lithium battery production). The following describes the present invention in conjunction with the accompanying drawings.

[0047] refer to Figure 1 and Figure 2 The transfer device of the present invention includes a silo 101, an exhaust filter 301, and a docking structure. The silo 101 is docked with the upper equipment via the docking structure to receive the powdered material output from the upper equipment. Exhaust through the exhaust filter 301 effectively reduces dust generated by the transfer of powdered material to the silo 101.

[0048] The silo 101 includes a silo body 102 having an inner cavity 103 and is provided with an inlet 104, an outlet 105, and an exhaust port 106, each connected to the inner cavity 103. The inner cavity 103 of the silo body 102 is used to accommodate powdered material, which can enter the inner cavity 103 of the silo body 102 through the inlet 104 and be discharged through the outlet 105. The exhaust port 106 can be used to exhaust some of the gas within the silo body 102. The exhaust filter 301 is connected to the silo body 102 and connected to the exhaust port 106 to filter the gas discharged through the exhaust port 106, thereby filtering dust.

[0049] The silo 101 further includes a first connecting portion 108 , which is disposed around the outer periphery of the feed port 104 and connected to the silo body 102 . The first connecting portion 108 is used to connect to the docking structure.

[0050] The docking structure includes a feed valve 201 and a feed pipe 202. The feed valve 201 is connected between the first connection part 108 and the feed pipe 202. For example, one side of the feed valve 201 is connected to the first connection part 108, and the feed pipe 202 is connected to the side of the feed valve 201 facing away from the first connection part 108; or, the feed valve 201 is arranged between the feed pipe 202 and the first connection part 108, and the feed pipe 202 is connected to the first connection part 108. The feed pipe 202 extends upward to be suitable for docking with the upper equipment. The interior of the feed pipe 202 has a feed channel that runs through both ends of the feed pipe 202. The feed valve 201 is used to switch the feed channel and the feed port 104. The feed valve 201 can be a butterfly valve, a ball valve, a gate valve, a stop valve, etc.

[0051] When the feed valve 201 is in an open state, the feed channel is connected to the feed port 104, and the powder can enter the feed port 104 through the feed channel, thereby being input into the inner cavity 103 of the bin body 102. When the feed valve 201 is in a closed state, the feed valve 201 blocks the connection between the feed channel and the feed port 104. Therefore, the docking structure provided at the position of the feed port 104 can facilitate docking with the upper equipment through the feed structure, and facilitate timely closing of the feed port 104 through the feed valve 201 before detaching from the upper equipment, effectively preventing the feed port 104 from being left open unnecessarily and causing powder leakage.

[0052] When the transfer device is in use, the feed pipe 202 of the docking structure is docked with the upper equipment, and the feed valve 201 is opened to connect the feed channel and the feed port 104. In this way, the feed port 104 can be connected and docked with the upper equipment, and can receive the powder output from the upper equipment. The upwardly extending feed pipe 202 can be easily docked with the upper equipment, which can facilitate the downward flow of powder into the feed port 104. After feeding is completed, the feed valve 201 can be closed to block the feed channel and feed port 104, achieving timely closure of the silo 101, thereby sealing the dust within the silo body 102. The feed pipe 202 can then be detached from the upper equipment to prevent the dust in the silo body 102 from being dispersed outward through the feed port 104. During the feeding process and after the feeding is completed, the dust-containing exhaust gas can be discharged through the exhaust port 106 to reduce the internal air pressure of the silo 101. The dust particles in the gas are intercepted by the exhaust filter 301 to avoid being discharged into the outside air. In this way, the dust in the silo body 102 can be effectively reduced, thereby further reducing the risk of dust leakage from the feed port 104 and the docking structure position.

[0053] refer to Figure 1 and Figure 3 In some embodiments, the silo body 102 may also be provided with a spare port 107 connected to the inner cavity 103. The spare port 107 is suitable for connecting to the interior of the upper equipment, and can balance the internal air pressure of the silo 101 and the upper equipment, and achieve material-gas balance with the upper equipment during unloading, thereby reducing the air pressure difference caused by unloading. Compared with the solution without a spare port, the amount of exhaust required through the exhaust port 106 to balance the internal air pressure of the silo 101 during the unloading process can be effectively reduced, thereby reducing the emission of dust exhaust gas, which is beneficial to extending the service life of the exhaust filter 301, and is beneficial to reducing the probability of dust escaping to the outside.

[0054] The feed port 104, the exhaust port 106 or the backup port 107 can be located on the top wall 111 or the side wall 112 of the bin body 102. When located on the top wall 111, this can avoid occupying the height of the side wall 112 where powder can be accumulated. When located on the side wall 112, the feed port 104, the exhaust port 106 or the backup port 107 can be located on the top wall 111, so that powder can be accumulated below this position. For example:

[0055] The feed port 104 can be provided on the side wall 112 of the silo body 102 , and the feed pipe 202 can be connected to the first connection portion 108 of the silo 101 through a bend pipe, so that the feed pipe 202 is extended upward to facilitate docking with the upper equipment.

[0056] Alternatively, the exhaust port 106 and / or the spare port 107 can be provided on the side wall 112 of the silo body 102, which can release the upper space and reduce the interference between the upper structure of the silo 101 and the external equipment. For example, when the docking structure of the upper equipment and the transfer device is docked through a flexible connection device, the released upper space of the silo 101 can facilitate the silo 101 to dock with the flexible connection device at the upper part, and effectively avoid the upper structure (such as the exhaust filter 301 and / or the connection structure for connecting the exhaust filter 301, the spare port 107 and / or the connection structure for connecting the exhaust filter 301) occupying the upper space of the silo 101 and interfering with the flexible connection device.

[0057] Alternatively, the feed port 104, the exhaust port 106 and the spare port 107 can all be arranged on the top wall 111 of the silo body 102. The feed port 104 is arranged on the top wall 111 of the silo body 102, which can be conveniently connected to the docking structure at the top, so as to facilitate docking with the upper equipment. After entering from the feed port 104, the powder falls downward into the inner cavity 103 of the silo body 102. The exhaust port 106 and the spare port 107 are arranged on the top wall 111 of the silo body 102 together with the feed port 104 to avoid affecting the feeding and effectively prevent the powder from accidentally entering the exhaust port 106 and the spare port 107. In addition, the dust generated by the feeding is located in the space above the inner cavity 103 of the silo body 102. The exhaust port 106 arranged on the top wall 111 can be beneficial to the discharge of dust-containing exhaust gas during the feeding process, and the spare port 107 arranged on the top wall 111 can be conveniently connected to the upper equipment.

[0058] When the transfer device is in use, the standby port 107 can be connected to the upper equipment through a pipeline. For example, the upper equipment is provided with an interface for communicating with the interior, and the standby port 107 and the interface can be connected through a pipeline to achieve communication between the silo 101 and the interior of the upper equipment. The standby port 107 can be provided with a valve. After the silo 101 is fed, before the standby port 107 and the upper equipment are disconnected, the valve of the standby port 107 can be closed to prevent dust inside the silo 101 from escaping to the outside through the standby port 107, and to prevent outside air from entering the silo 101 and affecting the quality of the powder. Alternatively, the standby port 107 can also be covered by an external cover. After the silo 101 is fed, after sufficient exhaust to reduce or eliminate dust inside the silo 101, the standby port 107 and the upper equipment can be disconnected, and then the standby port 107 can be covered with the cover to prevent outside air from entering the silo 101 and affecting the quality of the powder.

[0059] The exhaust filter 301 may be a cartridge filter, a bag filter, a plate filter, etc. The filter material includes but is not limited to polyester, PTFE (polytetrafluoroethylene), non-woven fabric, etc., which can effectively intercept dust particles in the gas discharged from the exhaust hole.

[0060] refer to Figure 1 and Figure 4In some embodiments, the transfer device further includes a lifting device 401, which is connected to the silo body 102 and is used to drive the silo body 102 to rise and fall to adjust the position of the feed pipe 202, so that the feed pipe 202 can be docked with the upper equipment. During use, the transfer device can be moved below the upper equipment so that the feed pipe 202 corresponds to the discharge port of the upper equipment. The silo body 102 is lifted to a set height by the lifting device 401, so that the feed pipe 202 can be docked with the discharge port of the upper equipment. The outer wall of the silo body 102 can be connected to a support column 113, and the lifting device 401 is connected to the support column 113. By driving the support column 113 up and down, the height of the silo body 102 is adjusted, so that it can be docked with the upper equipment.

[0061] The transfer device may further include casters 501 connected to the bottom of the lifting device 401 to facilitate the movement of the silo 101, thereby facilitating the transfer of the powder to the desired location. The casters 501 may be one-way casters 501, universal casters 501, casters with brakes, or other commonly used casters in industrial production equipment. The specific structure of the casters 501 can refer to commonly used solutions and will not be described in detail here.

[0062] The lifting device may include a first connecting member 402, a second connecting member 403 and a lifting cylinder 404. The lifting cylinder 404 is connected to the support column 113 through the first connecting member 402 and is connected to the caster 501 through the second connecting member 403. Thus, the first connecting member 402 can be driven by the cylinder to lift and lower to change the height of the support column 113 relative to the caster 501, thereby adjusting the height of the silo 101 and realizing the height adjustment of the feed pipe 202.

[0063] refer to Figure 1 and Figure 2 In some embodiments, the feed pipe 202 can be configured into a structure that is compatible with the upper equipment, which is conducive to improving the sealing of the docking position and reducing dust leakage. For example, the upper equipment can be provided with a discharge port for discharging powder, and the discharge port can be an opening opened on the upper equipment body, or the feed pipe 202 and the upper equipment can be connected through a flexible pipe, and the discharge port can be the discharge end of the flexible pipe. The feed pipe 202 can include a docking pipe 203 and a connecting flange 204 arranged around the outer wall of one end of the docking pipe 203. The docking pipe 203 partially enters the discharge port, and the connecting flange 204 can abut against the end face of the discharge port, playing a certain sealing connection role, which can effectively reduce dust leakage at the docking position.

[0064] refer to Figure 1 and Figure 2In some embodiments, the feed pipe 202, feed valve 201, and first connection portion 108 are detachably connected. For example, the first connection portion 108 may be a flange structure disposed around the periphery of the feed inlet 104. The feed pipe 202 may include a butt joint 203 and a connecting flange 204 disposed around the outer wall of one end of the butt joint 203. The feed valve 201 abuts between the first connection portion 108 and the connecting flange 204 of the feed pipe 202. The first connection portion 108 and the connecting flange 204 of the feed pipe 202 are detachably connected by bolts. This facilitates the independent installation, maintenance, and replacement of the feed pipe 202 and feed valve 201. In some applications, the feed pipe 202 can be replaced to accommodate different discharge openings of upper equipment, improving the applicability of the transfer device.

[0065] refer to Figure 1 and Figure 5 In some embodiments, the silo 101 further includes a second connecting portion 109, which is arranged around the outer periphery of the discharge port 105 and connected to the silo body 102; the transfer device further includes a discharge valve 601 and a discharge pipe 602, and the interior of the discharge pipe 602 has a discharge channel passing through both ends of the discharge pipe 602, and the discharge valve 601 is connected between the second connecting portion 109 and the discharge pipe 602. For example, one side of the discharge valve 601 is connected to the second connecting portion 109, and the discharge pipe 602 is connected to the side of the discharge valve 601 away from the second connecting portion 109; or, the discharge valve 601 is arranged between the discharge pipe 602 and the second connecting portion 109, and the discharge pipe 602 is connected to the second connecting portion 109.

[0066] The discharge valve 601 is used to switch the discharge channel and the discharge port 105. The discharge valve 601 can be a butterfly valve, ball valve, gate valve, stop valve, etc. When the discharge valve 601 is closed, the discharge channel is blocked from communicating with the discharge port 105. At this time, the silo 101 is suitable for receiving the powder output by the upper equipment and storing the powder in the silo 101. When the discharge valve 601 is open, the discharge channel is connected to the discharge port 105, and the powder can be discharged from the silo 102 through the discharge port 105 and the discharge channel, and then input into the lower equipment.

[0067] Similar to the docking structure at feed port 104, discharge valve 601 and discharge pipe 602 allow discharge port 105 to dock with the lower equipment, facilitating discharge from silo 101. This also allows for timely closure of discharge port 105 via discharge valve 601 before detachment from the lower equipment, effectively preventing powder leakage caused by unnecessary opening of discharge port 105. Dust generated during the discharge process and for a period of time after completion can be removed through exhaust port 106.

[0068] refer to Figure 1 and Figure 5In some embodiments, the discharge pipe 602 can be configured into a structure that is compatible with the lower equipment, which is conducive to improving the sealing of the docking position and reducing dust leakage. For example, the lower equipment can be provided with a receiving port for inputting powder, and the receiving port can be an opening opened on the body of the lower equipment, or the discharge pipe 602 and the lower equipment can be docked through a flexible pipe, and the receiving port can be the feed end of the flexible pipe. The discharge pipe 602 can be composed of a structure similar to that of the feed pipe 202. For example, the discharge pipe 602 can include a docking pipe 203 and a connecting flange 204 arranged around the outer wall of one end of the docking pipe 203. During docking, the docking pipe 203 partially enters the receiving port, and the connecting flange 204 can abut against the end face of the receiving port, playing a certain sealing connection role, which can effectively reduce dust leakage at the docking position.

[0069] refer to Figure 1 and Figure 5 In some embodiments, the discharge pipe 602, the discharge valve 601, and the second connection portion 109 are detachably connected. For example, the second connection portion 109 may be a flange structure disposed around the outer periphery of the discharge port 105. The discharge pipe 602 may include a butt joint 203 and a connecting flange 204 disposed around the outer wall of one end of the butt joint 203. The discharge valve 601 abuts between the second connection portion 109 and the connecting flange 204 of the discharge pipe 602. The second connection portion 109 and the connecting flange 204 of the discharge pipe 602 are detachably connected by bolts. This facilitates the independent installation, maintenance, and replacement of the discharge pipe 602 and the discharge valve 601. In some applications, the discharge pipe 602 can be replaced to accommodate different material connection ports on the lower equipment, improving the applicability of the transfer device.

[0070] refer to Figure 1 and Figure 6 In some embodiments, the transfer device further includes an exhaust valve 302, which is connected between the exhaust port 106 and the exhaust filter 301 and is used to switch the exhaust port 106 on and off. The exhaust valve 302 can be a butterfly valve, a ball valve, a gate valve, a stop valve, etc. When the exhaust valve 302 is open, the exhaust port 106 can communicate with the exhaust filter 301, and the gas inside the silo 101 can be discharged through the exhaust port 106 and the exhaust filter 301. When the exhaust valve 302 is closed, the exhaust valve 302 closes the exhaust port 106, preventing outside air from entering the interior of the silo 101 through the exhaust port 106 and affecting the quality of the powder.

[0071] The silo 101 further includes a third connecting portion 110, which is disposed around the outer periphery of the exhaust port 106 and connected to the silo body 102. The exhaust valve 302 may be connected to an exhaust pipe 303. The exhaust pipe 303 has an exhaust passage extending through both ends of the exhaust pipe 303. The exhaust filter 301 is connected to the exhaust pipe 303 and is internally connected to the exhaust passage. The exhaust valve 302 is connected between the third connecting portion 110 and the exhaust pipe 303. For example, one side of the exhaust valve 302 is connected to the third connecting portion 110, and the exhaust pipe 303 is connected to the side of the exhaust valve 302 facing away from the third connecting portion 110. Alternatively, the exhaust valve 302 may be disposed between the exhaust pipe 303 and the third connecting portion 110, with the exhaust pipe 303 connected to the third connecting portion 110.

[0072] The exhaust valve 302 is used to switch the connection between the exhaust passage and the exhaust port 106. The exhaust valve 302 can be a butterfly valve, ball valve, gate valve, stop valve, etc. When the exhaust valve 302 is in the open state, the exhaust passage is connected to the exhaust port 106, and the gas in the inner cavity 103 of the chamber 102 can be discharged from the chamber 102 through the exhaust port 106, the exhaust passage, and the exhaust filter 301. When the exhaust valve 302 is in the closed state, the exhaust valve 302 blocks the connection between the exhaust passage and the exhaust port 106, thereby closing the exhaust port 106.

[0073] Similar to the docking structure at the feed port 104, the exhaust valve 302 and exhaust pipe 303 can be used to dock the exhaust port 106 with the exhaust filter 301, facilitating the connection of the exhaust filter 301 and facilitating the timely closing of the exhaust port 106 via the exhaust valve 302 after exhaust is completed, effectively preventing external gas from entering the inner cavity 103 and affecting the quality of the powder. The third connecting portion 110 can be a flange structure arranged around the periphery of the exhaust port 106. The exhaust pipe 303 can include a docking pipe 203 and a connecting flange 204 arranged around the outer wall of one end of the docking pipe 203. The exhaust valve 302 abuts between the third connecting portion 110 and the connecting flange 204 of the exhaust pipe 303. The third connecting portion 110 and the connecting flange 204 of the exhaust pipe 303 are detachably connected by bolts. The end of the exhaust pipe 303 facing away from the exhaust valve 302 can be connected to the connecting pipe of the exhaust filter 301. Alternatively, the connecting pipes of the exhaust pipe 303 and the exhaust filter 301 can each be connected to an adapter pipe 304. The other end of the adapter pipe 304 is provided with a flange. The flanges are fixed in place by a clamp 305 after the two adapter pipes 304 are docked, thereby connecting the exhaust pipe 303 and the exhaust filter 301. The clamp 305 can be made of materials including, but not limited to, metal, plastic, or ceramic. Alternatively, the connecting pipes of the exhaust pipe 303 and the exhaust filter 301 can each be provided with a flange structure, which is connected by bolts. This facilitates the independent installation, removal, maintenance, and replacement of the exhaust pipe 303, the exhaust valve 302, and the exhaust filter 301.

[0074] In some embodiments, the transfer device may further include an auxiliary unloading device, which includes at least one of a fluidizing device 701 and an air hammer 706, wherein the discharge port 105 is located at the bottom of the silo 102, and the auxiliary unloading device can be used to assist the powder in breaking the arch and unloading during the process of opening the discharge port 105 for discharging, so that the powder can be discharged smoothly from the discharge port 105, thereby achieving the effect of quickly emptying the powder.

[0075] refer to Figures 7 to 9 The fluidizing device 701 may include an air inlet pipe 702 and a fluidizer. The air inlet pipe 702 is connected to the fluidizer to supply compressed air to the fluidizer. The fluidizer is connected to the side wall 112 of the silo 102 and is located above the discharge port 105. The fluidizer is used to blow air toward the inner wall of the silo 102, so that the powder on the inner wall of the silo 102 is blown up by the compressed air, improving fluidity and effectively reducing the retention of powder within the silo 102. This speeds up the discharge of the powder, achieves the functions of flow-aiding and anti-blocking, and saves discharge time.

[0076] Furthermore, the fluidizing device 701 may also include a pressure regulating valve 704 connected to the air inlet pipe 702 for regulating the pressure of the compressed air entering the air inlet pipe 702, thereby regulating the pressure of the gas entering the fluidizer, ensuring that the fluidizer operates at an appropriate air pressure and achieving efficient fluidization and flow-aiding effects on the powder. The fluidizing device 701 may also include a solenoid valve 705 connected to the air inlet pipe 702 for switching the air inlet pipe 702 on and off, thereby controlling the start and stop of the fluidizer.

[0077] The fluidizer may include at least two air butterfly devices 703, which are arranged at intervals on the side wall 112 of the warehouse body 102, the air outlet of the air butterfly device 703 is located on the inner side of the side wall 112, and the air inlet of the air butterfly device 703 is located on the outer side of the side wall 112. The air inlet pipe 702 is arranged on the outside of the side wall 112 of the warehouse body 102 and is connected to the air inlet of each air butterfly device 703. For example, the air inlet pipe 702 includes an air inlet ring pipe 702-2 and an air inlet straight pipe 702-1. The air inlet ring pipe 702-2 is arranged on the outer wall of the warehouse body 102 and connects each air butterfly device 703. The air inlet straight pipe 702-1 is connected to the air inlet ring pipe 702-2. The pressure regulating valve 704 and the solenoid valve 705 are connected to the air inlet straight pipe 702-1. Compressed air is introduced through the air inlet straight pipe 702-1 and delivered to the air inlet ring pipe 702-2 into each air butterfly device 703. The spaced air butterfly devices 703 blow air to different locations on the inner wall of the silo 102, which is conducive to the rapid fluidization of powder at different locations, thereby improving the discharge efficiency.

[0078] During application, when the discharge of the material starts from the inside of the silo 102, the air intake pressure is controlled by adjusting the pressure regulating valve 704, the solenoid valve 705 opens the air intake pipe 702, and the compressed air begins to enter the air intake ring pipe 702-2 through the air intake straight pipe 702-1. The compressed air entering the air intake ring pipe 702-2 is then blown toward the inner wall of the silo 102 from the air butterfly device 703, thereby backblowing the powder, so that the powder on the inner wall of the silo 102 is blown up by the compressed air, and then falls from the middle to the discharge port, thereby accelerating the discharge speed.

[0079] The pneumatic hammer 706 is connected to the exterior of the sidewall 112 of the silo 102 and is used to strike the sidewall 112. This assists in unloading by breaking and loosening any powder stuck or compacted on the inner wall of the silo 102, facilitating unloading and reducing residual powder. In some embodiments, the fluidizing device 701 and the pneumatic hammer 706 work together to accelerate the fluidity of the powder, effectively accelerating the flow and discharge of the powder. After unloading, the fluidizing device 701 can also be used to purge any powder remaining on the inner wall of the silo 102, reducing residual powder within the silo 101.

[0080] During the discharge process, the outside air can be connected through the exhaust port 106 and the exhaust filter 301 to balance the air pressure inside and outside the silo 101. It is understood that during the discharge process, the movement of the powder and the action of the auxiliary discharge device on the powder will also cause a certain amount of dust to be generated inside the silo 101. The exhaust filter 301 can intercept the dust and prevent it from overflowing.

[0081] refer to Figure 7 In some embodiments, the transfer device may further include a weighing device 801, which is located outside the silo 102 and connected to the silo 102. The weighing device 801 is used to measure the weight of the powder in the silo 101. When feeding, it can be determined whether the powder in the silo 102 is full or piled up to the target height based on whether the measurement result of the weighing device 801 reaches the target weight, or, when discharging, it can be determined whether the powder in the silo 102 is empty based on the measurement of the weighing device 801. The above judgment method can be to display the reading of the weighing device 801 through a display device and use manual recognition and judgment, or to obtain the measurement result of the weighing device 801 through a controller and compare it with the set data for automatic judgment.

[0082] refer to Figure 7 and Figure 10In some embodiments, the weighing device 801 may include a fixing member 802, a weighing module 803 and a support member 804. The fixing member 802 is connected to the outside of the silo body 102, and the weighing module 803 is connected between the fixing member 802 and the support member 804. The support member 804 is suitable for being supported on an external fixed structure (for example, a support platform fixed to the ground, or a support platform provided on the lower equipment), so that the silo 101 is pressed against the weighing module 803 through the fixing member 802. As a result, the silo 101 can be suspended above the ground, and the silo 101, various devices and structural members connected to the silo 101, and the powder in the silo 101 are pressed against the weighing module 803 as a whole through the fixing member 802, thereby applying pressure to the weighing module 803. The weighing module 803 is configured to obtain the weight of the powder according to the change in the pressure received.

[0083] The powder handling system of the present embodiment includes an upper unit and the aforementioned transfer device. The upper unit is provided with a discharge port for discharging powder, and the transfer device is adapted to be sealedly connected to the discharge port via a feed pipe 202. By connecting the transfer device to the upper unit, the transfer device can transfer powder within the upper unit and effectively reduce dust leakage during powder transfer.

[0084] The powder processing system may also include a controller, which is communicatively connected to the upper equipment and the transfer device, and is used to control the unloading of the upper equipment, the opening and closing of the feed valve 201, and the start and stop of the exhaust filter 301, thereby realizing the start and stop control of feeding and exhaust.

[0085] In some embodiments, the controller can also be communicatively connected to the discharge valve 601 and the solenoid valve 705 of the fluidizing device 701. When discharge is required, the discharge valve 601 and the solenoid valve 705 can be opened to control the fluidizing device 701 to assist in discharging. Similarly, the controller can also be communicatively connected to the air hammer 706. During and / or after discharging is complete, the air hammer 706 can be activated to assist in the removal of powder adhering to the inner wall of the silo 102. After discharging is complete, the fluidizing device 701 can also be activated to purge the inner wall of the silo 102 to reduce residual powder.

[0086] In some embodiments, the controller can also be connected to the weighing device 801 for communication. When the transfer device starts to feed or discharge materials, the weight of the device will be pressed onto the weighing module 803 through the upper fixing part 802. The weighing module 803 senses the pressure and forms a data signal which is transmitted to the controller. At this time, the data feedback from the weighing module 803 can be compared with the data stored in the controller to determine whether the material is full or empty.

[0087] refer to Figure 7 、 Figure 8 and Figure 11The powder processing system may further include a walking device for guiding the transfer device to move according to a set path. The walking device may include a guide rail 901, which may be laid on the ground or erected above the ground. A guide groove 902 is formed inside the guide rail 901, and the casters 501 of the transfer device may move within the guide groove 902. The upper equipment may be arranged above the walking device, and the transfer device may move along the guide groove 902 to reach the bottom of the transfer device, so that the feed pipe 202 of the docking structure corresponds to the discharge port of the upper equipment. At this time, the silo 101 may be lifted by the lifting device 401 to achieve docking of the feed pipe 202 with the discharge port. After loading is completed, the silo 101 may be lowered and moved along the guide groove 902, thereby being removed from the bottom of the upper equipment. When the guide rails 901 are installed above the ground, the lower equipment can be installed below the running device. The transfer device can move along the guide grooves 902 to reach the top of the lower equipment, so that the discharge pipe 602 below the discharge port 105 aligns with the material receiving port of the lower equipment. At this time, the silo 101 can be lowered by the lifting device 401 to connect the discharge pipe 602 with the material receiving port. After the discharge is completed, the silo 101 can be lifted and moved along the guide grooves 902 to move out from above the lower equipment and then moved to the bottom of the upper equipment for loading.

[0088] refer to Figure 11 and Figure 12 The walking device may also include a fixing device 903. When the transfer device stops moving, the fixing device 903 may be abutted against one side of the caster 501 and connected to the guide rail 901, or fixed to other fixed structures at the stop position of the transfer device (such as the fixing structure on the lower equipment). For example, the fixing connection of the fixing device 903 may be achieved through threaded fasteners. The fixing device 903 can prevent the caster 501 from continuing to move, and cooperate with the brake device of the caster 501 to fix the position of the transfer device, thereby improving the stability of the transfer device.

[0089] As an example, when the transfer device and the powder processing system of the embodiment of the present application are used, the following operations can be performed to load or discharge the material:

[0090] Move the transfer device to the bottom of the upper equipment where the material needs to be received, fix the fixing device 903 to the side of the caster 501, and press the brake device to fix the transfer device. Connect this control signal to the controller.

[0091] Start the lifting device to raise the silo 101 upward, and press the feed pipe 202 and the discharge port of the upper equipment device to achieve sealing to prevent dust leakage during discharge;

[0092] Open the feed valve 201 and the discharge valve of the upper device for closing the discharge port. At this time, the material of the upper device starts to be fed into the silo 101. At the same time, open the exhaust valve 302 to allow the dust exhaust gas generated by the material entering the silo 101 to be filtered through the exhaust filter 301, intercepting the particles of the powder before exhausting;

[0093] During the loading process, the weighing device 801 starts weighing and measuring, and the loading weight can also be set in advance according to the volume of the silo 101. When the powder material reaches the predetermined weight, the discharge valve and the feed valve 201 of the upper equipment are closed;

[0094] Start the lifting device 401 to lower the silo 101 so that the feed pipe 202 is separated from the discharge port of the upper equipment. Release the brakes of the fixing device 903 and the brake device of the caster 501, and then transfer the silo 101 or move it to a warehouse for storage;

[0095] When unloading is required, move the transfer device to the top of the receiving bin (lower equipment) where the material is needed. After docking, secure the fixture 903 to the downstream equipment or to the guide rail 901, and simultaneously apply the brakes on the casters 501 to secure the transfer device in place. At this point, connect the utility power and gas connections.

[0096] Before discharging, open the valve used to close the material receiving port at the material receiving port of the lower equipment, open the discharge valve 601 at the discharge port 105 of the silo 101, and open the exhaust valve 302 of the exhaust filter 301, adjust the air inlet pressure of the pressure regulating valve 704, and then discharge the material with the assistance of the fluidizing device 701.

[0097] When the transfer device's weighing display approaches the target value (for example, a target value of 0, which excludes the weight of the silo 101 itself and any devices and components connected to it), the material is considered empty. The fluidizing device 701 can be manually operated to blow air into the silo 102 to remove any residual powder from the inner walls.

[0098] After unloading, close the discharge valve 601, release the brake device of the fixing device 903 and the caster 501, return the transfer device to its original position and prepare for the next round of use, or move the transfer device to the bottom of the upper equipment of the required material to continue powder transfer.

[0099] The transfer device and powder handling system of the embodiments of the present application provide a safe and leak-free transfer method for the transfer of powder during continuous production, solving the pain points of blockage and electrostatic breakdown caused by long-distance pneumatic conveying. The transfer device can also be used as a transfer silo 101 to achieve closed storage of powder, solving the problem that the fixed volume of the post-process silo 101 cannot store too much material in large quantities. The storage function of the transfer device can also replace ton bags for loading materials, without the need to provide ton bags in large quantities. The transfer device can be recycled, saving the cost of consumables, and can also be used as a storage device to replace ton bags for cross-factory and long-distance powder transportation.

[0100] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various modifications can be made within the scope of knowledge possessed by a person skilled in the art without departing from the spirit of the present invention. In addition, the embodiments of the present invention and the features of the embodiments can be combined with each other unless there is a conflict.

Claims

1. A transfer device, characterized in that: include: A silo (101) comprises a silo body (102) and a first connecting portion (108), wherein the silo body (102) has an inner cavity (103) and is provided with a feed port (104), a discharge port (105), and an exhaust port (106) respectively connected to the inner cavity (103), and the first connecting portion (108) is arranged around the outer periphery of the feed port (104) and connected to the silo body (102); an exhaust filter (301), connected to the chamber (102) and in communication with the exhaust port (106), for filtering gas exhausted through the exhaust port (106); The docking structure comprises a feed valve (201) and a feed pipe (202), wherein the feed pipe (202) has a feed channel extending through both ends of the feed pipe (202), the feed valve (201) is connected between the first connecting portion (108) and the feed pipe (202), the feed pipe (202) is extended upward to be suitable for docking with upper equipment, and the feed valve (201) is used to switch the feed channel and the feed port (104) on and off.

2. The transfer device according to claim 1, characterized in that The warehouse body (102) is further provided with a spare port (107) communicating with the inner cavity (103), and the spare port (107) is suitable for connecting to the interior of the upper device.

3. The transfer device according to claim 2, characterized in that The feed port (104), the exhaust port (106) and the standby port (107) are all provided on the top wall (111) of the bin body (102).

4. The transfer device according to claim 1, characterized in that The transfer device further comprises an exhaust valve (302), wherein the exhaust valve (302) is connected between the exhaust port (106) and the exhaust filter (301) and is used to switch the exhaust port (106) on and off.

5. The transfer device according to claim 1, characterized in that: The silo (101) further includes a second connecting portion (109), the second connecting portion (109) being arranged around the outer periphery of the discharge port (105) and connected to the silo body (102); The transfer device further comprises a discharge valve (601) and a discharge pipe (602), wherein the discharge pipe (602) has a discharge channel extending through both ends of the discharge pipe (602), and the discharge valve (601) is connected between the second connection portion (109) and the discharge pipe (602), and the discharge valve (601) is used to switch the discharge channel and the discharge port (105) on and off.

6. The transfer device according to claim 1, characterized in that The transfer device also includes a fluidizing device (701), and the fluidizing device (701) includes an air inlet pipe (702) and a fluidizer, wherein the discharge port (105) is located at the bottom of the silo (102), the fluidizer is connected to the side wall (112) of the silo (102), and is located above the discharge port (105), and the air inlet pipe (702) is connected to the fluidizer so as to be suitable for introducing compressed air into the fluidizer.

7. The transfer device according to claim 6, characterized in that The fluidizer comprises at least two air butterfly devices (703), the air butterfly devices (703) being arranged at intervals on the side wall (112) of the silo (102), the air outlet of the air butterfly device (703) being located on the inner side of the side wall (112), the air inlet of the air butterfly device (703) being located on the outer side of the side wall (112), and the air inlet pipe (702) being arranged around the outside of the side wall (112) of the silo (102) and connected to the air inlet of each of the air butterfly devices (703).

8. The transfer device according to claim 1, characterized in that The transfer device further comprises a weighing device (801), the weighing device (801) being located outside the silo (102) and connected to the silo (102), and the weighing device (801) being used to measure the weight of the powder in the silo (101).

9. The transfer device according to claim 1, characterized in that: The transfer device further comprises a lifting device (401), wherein the lifting device (401) is connected to the warehouse body (102) and is used to drive the warehouse body (102) to rise and fall so as to adjust the position of the feed pipe (202).

10. Powder processing system, characterized in that, It comprises an upper device and a transfer device according to any one of claims 1 to 9, wherein the upper device is provided with a discharge port for discharging powder, and the transfer device is suitable for sealingly docking with the discharge port through a feed pipe (202).

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