High-safety automatic aluminum powder processing system

Abstract

This invention relates to the field of aluminum powder screening technology, specifically disclosing a high-safety automated aluminum powder processing system, comprising: an automatic suction system, a drying system, an automatic weighing and dispensing system, an inert gas protection system, a negative pressure conveying and filtration system, an automatic dust removal system, as well as an oxygen content monitoring system, a control system, a monitoring system, and a power system; aluminum powder is sequentially loaded into aluminum bags through the automatic suction system, the drying system, and the automatic weighing and dispensing system; the inert gas protection system fills the automatic suction system, the drying system, and the automatic weighing and dispensing system with inert gas, which is then passed through the drying system and the automatic weighing and dispensing system to the negative pressure conveying and filtration system and the automatic dust removal system for filtration and dust removal.

Description

Technical Field

[0001] This invention relates to the field of aluminum powder screening technology, and more specifically to a high-safety automated aluminum powder processing system. Background Technology

[0002] Aluminum powder is one of the most commonly used high-energy additives. With the continuous growth of production and scientific research tasks in recent years, the consumption of aluminum powder has also increased exponentially. Traditional aluminum powder processing usually relies on manual, face-to-face operation, which poses safety risks due to dust emissions throughout the process. There is an urgent need for a highly safe and automated processing equipment for the sieving, drying, and packaging of aluminum powder materials.

[0003] Therefore, how to solve the safety risks caused by dust in existing technologies is a technical problem that urgently needs to be solved by those skilled in the art. Summary of the Invention

[0004] This invention addresses the problems of low efficiency and poor safety in manual aluminum powder processing. This application provides a high-safety automated aluminum powder processing system, including: an automatic suction system, a drying system, an automatic weighing and dispensing system, an inert gas protection system, a negative pressure conveying and filtration system, an automatic dust removal system, as well as an oxygen content monitoring system, a control system, a monitoring system, and a power system.

[0005] Aluminum powder is sequentially loaded into aluminum bags through the automatic suction system, drying system, and automatic weighing and dispensing system. The inert gas protection system fills the automatic suction system, drying system, and automatic weighing and dispensing system with inert gas, which is then passed through the drying system and automatic weighing and dispensing system to a negative pressure conveying and filtration system and an automatic dust removal system for filtration and dust removal.

[0006] In some specific embodiments, the inert gas protection system includes a nitrogen generation system, a two-stage pressure regulating valve, and a pressure transmitter. The nitrogen generation system is connected to the two-stage pressure regulating valve and the pressure transmitter via a pipeline to provide full-process nitrogen protection for the automatic suction system, negative pressure conveying system, drying system, and automatic packaging system.

[0007] In some specific embodiments, the automatic suction system includes: a customized material cart, a material cart positioning structure, a suction head, an aluminum powder bucket, a bucket lid, a suction assembly, an XY bidirectional displacement platform, and a top frame; the top frame is installed on the workshop wall to support the automatic suction system; the XY bidirectional displacement platform is installed on the top frame and is driven by two sets of cylinders; the bucket lid and the suction assembly are installed on the XY bidirectional displacement platform, the suction assembly houses the suction head and nitrogen inlet pipe, the bucket lid is used to move up and down under the individual control of the cylinders, and the bucket lid is provided with an inflatable rubber square tube seal to tightly connect the bucket lid to the aluminum powder bucket; the suction head is used to move horizontally with the bucket lid and can move up and down relative to the bucket lid under the individual control of the cylinders, and a support mesh is provided on the outside of the suction head; the customized material cart includes an aluminum powder bucket positioning structure to ensure the position of the aluminum powder bucket at any time.

[0008] In some specific embodiments, the drying system includes: a temperature control system, a dryer, and a transition silo; the temperature control system includes a mold temperature controller, an oil guide pipe, and a temperature sensor installed on the dryer; the transition silo is connected to the dryer; the transition silo is provided with a nitrogen inlet, and the opening and closing of the nitrogen inlet is controlled by a pneumatic ball valve; the bottom of the transition silo is provided with a screen for the initial sieving of aluminum powder.

[0009] In some specific embodiments, the automatic weighing and dispensing system includes: an automatic weighing hopper, an automatic bag feeding system, an automatic bag tying system, and an automatic conveying system; the automatic weighing hopper includes a screw conveyor, a weighing module, a filter interface, a nitrogen interface, a dust removal interface, and a screen; a bag filter is installed at the filter interface, and a pulse on / off valve is installed at the nitrogen interface to achieve nitrogen pulse backflushing and ensure the normal operation of the bag filter; the discharge port of the screw conveyor is horn-shaped and connected to the weighing module to achieve fast and slow discharge; the screen is installed at the discharge port of the screw conveyor.

[0010] In some specific embodiments, the negative pressure conveying and filtration system includes: a negative pressure fan, a primary filter, a secondary filter, and pipelines connecting the automatic suction system, the drying system, and the automatic weighing and dispensing system; the negative pressure fan first connects to the pressure transmitter and the secondary filter in sequence, and then is divided into two paths by a pneumatic ball valve. The first path passes through the primary filter and is connected to the drying system and the automatic suction system to achieve negative pressure conveying and filtration; the second path passes through the primary filter and is connected to the filter interface of the automatic weighing hopper to achieve negative pressure conveying and filtration.

[0011] In some specific embodiments, the automatic weighing hopper is equipped with a bag filter to prevent the bag filter from becoming clogged.

[0012] In some specific embodiments, the main body of the connecting pipe is made of stainless steel and is polished and pickled; the bends of the connecting pipe are connected using elbows with a large radius or anti-static flexible hoses.

[0013] In some specific embodiments, the control system includes PLC remote control and equipment local control. The PLC remote control integrates equipment information, process parameters and control functions of the high-safety aluminum powder automated processing system and interlocks with the local control, with priority given to field-level control.

[0014] In some specific embodiments, the oxygen content monitoring system is used to monitor the oxygen concentration in the plant and transmit the data to the control system.

[0015] The beneficial effects of the above technical solution are as follows:

[0016] (1) This invention realizes automatic aluminum powder suction, drying, sieving, weighing and packaging, ensuring unmanned operation in the aluminum powder processing process, replacing the existing manual face-to-face operation process, and fundamentally reducing the safety risks that aluminum powder processing may bring to the staff.

[0017] (2) The inert gas full-process protection technology adopted in this invention, combined with the dust removal system and oxygen content monitoring at multiple key points, ensures that the oxygen content is always less than 5% during the aluminum powder processing, fundamentally avoiding the safety problems of dust flying and frictional explosion during the aluminum powder processing. Attached Figure Description

[0018] 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.

[0019] Figure 1 A schematic diagram of a high-safety automated aluminum powder processing system provided in one embodiment of the present invention;

[0020] Figure 2 A schematic diagram of the on-site layout of a high-safety automated aluminum powder processing system provided as an embodiment of the present invention;

[0021] Figure 3 This is a schematic diagram of an automatic suction system for a high-safety automated aluminum powder processing system, provided as an embodiment of the present invention.

[0022] In the attached diagram: 1. Automatic suction system; 110. Customized material cart; 120. Aluminum powder bucket; 130. Suction head; 131. Support mesh cover; 140. Bucket lid and suction assembly; 141. Inflatable rubber square tube; 142. Nitrogen inlet pipeline; 150. XY bidirectional displacement platform; 160. Top frame; 2. Drying system; 210. Mold temperature controller; 220. Dryer; 230. Transition silo; 3. Weighing and dispensing system; 310. Automatic weighing silo; 320. Packaging machine; 4. Inert gas protection system; 410. Nitrogen generation system; 5. Negative pressure conveying and filtration system; 510. Negative pressure fan; 520. Multi-stage filtration device; 6. Automatic dust removal system; 610. Dust removal fan; 620. Filtration device. Detailed Implementation

[0023] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0024] Examples of the embodiments are shown in the accompanying drawings, wherein the same or similar symbols denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the invention, and should not be construed as limiting the invention.

[0025] Example 1

[0026] An embodiment of the present invention provides a high-safety automated aluminum powder processing system, comprising: an automatic suction system 1, a drying system 2, an automatic weighing and dispensing system 3, an inert gas protection system 4, a negative pressure conveying and filtration system 5, an automatic dust removal system 6, as well as an oxygen content monitoring system, a control system, a monitoring system, and a power system;

[0027] Aluminum powder is sequentially loaded into aluminum bags through the automatic suction system 1, drying system 2, and automatic weighing and dispensing system 3; the inert gas protection system 4 fills the automatic suction system 1, drying system 2, and automatic weighing and dispensing system 3 with inert gas, and then fills the negative pressure conveying and filtration system 5 and automatic dust removal system 6 through the drying system 2 and automatic weighing and dispensing system 3 for filtration and dust removal.

[0028] In one specific embodiment of the present invention, the inert gas protection system 4 includes a nitrogen generation system 410, a two-stage pressure regulating valve and a pressure transmitter. The nitrogen generation system 410 is connected to the two-stage pressure regulating valve and the pressure transmitter through a pipeline, and is used to provide full-process nitrogen protection for the automatic suction system 1, the negative pressure conveying system, the drying system 2 and the automatic packaging system.

[0029] In one specific embodiment of the present invention, the automatic suction system 1 includes: a customized material cart 110, a material cart positioning structure, a suction head 130, an aluminum powder bucket 120, a bucket lid, a suction assembly, an XY bidirectional displacement platform 150, and a top frame 160; the top frame 160 is installed on the workshop wall to support the automatic suction system 1; the XY bidirectional displacement platform 150 is installed on the top frame 160 and is driven by two sets of cylinders; the bucket lid and the suction assembly are installed on the XY bidirectional displacement platform 150. The suction assembly includes a suction head 130 and a nitrogen inlet pipe 142. The lid is used to move up and down under the individual control of a cylinder. An inflatable rubber square tube 141 is provided inside the lid to seal it tightly to the aluminum powder container 120. The suction head 130 is used to move horizontally with the lid and can move up and down relative to the lid under the individual control of a cylinder. A support mesh cover 131 is provided on the outside of the suction head 130. The customized material cart 110 includes a positioning structure for the aluminum powder container 120 to ensure the position of the aluminum powder container 120 at any time.

[0030] In one specific embodiment of the present invention, the drying system 2 includes: a temperature control system, a dryer 220, and a transition silo 230; the temperature control system includes a mold temperature controller 210, an oil guide pipe, and a temperature sensor installed on the dryer 220; the transition silo 230 is connected to the dryer 220; the transition silo 230 is provided with a nitrogen port, and the opening and closing of the nitrogen port is controlled by a pneumatic ball valve; the bottom of the transition silo 230 is provided with a screen for initial sieving of aluminum powder.

[0031] In a specific embodiment of the present invention, the automatic weighing and dispensing system 3 includes: an automatic weighing hopper 310, an automatic bag feeding system, an automatic bag tying system, and an automatic conveying system; the automatic weighing hopper 310 includes a screw conveyor, a weighing module, a filter interface, a nitrogen interface, a dust removal interface, and a screen; a bag filter is installed at the filter interface, and a pulse on / off valve is installed at the nitrogen interface to realize nitrogen pulse backflushing and ensure the normal operation of the bag filter; the discharge port of the screw conveyor is horn-shaped and connected to the weighing module to realize fast and slow discharge; the screen is installed at the discharge port of the screw conveyor.

[0032] In a specific embodiment of the present invention, the negative pressure conveying and filtration system 5 includes: a negative pressure fan 510, a primary filter, a secondary filter, and pipelines connecting the automatic suction system 1, the drying system 2, and the automatic weighing and dispensing system 3; the negative pressure fan 510 first connects to the pressure transmitter and the secondary filter in sequence, and then is divided into two paths by a pneumatic ball valve. The first path passes through the primary filter and is connected to the drying system 2 and the automatic suction system 1 to realize negative pressure conveying and filtration; the second path passes through the primary filter and is connected to the filter interface of the automatic weighing hopper 310 to realize negative pressure conveying and filtration.

[0033] In one specific embodiment of the present invention, the automatic weighing hopper 310 is provided with a bag filter to prevent the bag filter from becoming clogged.

[0034] In one specific embodiment of the present invention, the main body of the connecting pipe is made of stainless steel and is polished and pickled; the bends of the connecting pipe are connected using elbows with a large radius or anti-static flexible hoses.

[0035] In one specific embodiment of the present invention, the control system includes PLC remote control and equipment local control. The PLC remote control integrates equipment information, process parameters and control functions of the high-safety aluminum powder automated processing system and interlocks with the local control, with priority given to field-level control.

[0036] In one specific embodiment of the present invention, the oxygen content monitoring system is used to monitor the oxygen concentration in the plant and transmit the data to the control system.

[0037] Example 2

[0038] This embodiment is mainly used to automate the processing of two types of aluminum powder, FLQT1 and FLQT3. The properties of the two types of aluminum powder are shown in Table 1.

[0039] Table 1. Performance of aluminum powders FLQT1 and FLQT3

[0040] Serial Number Material Name Particle diameter (μm) Minimum particle diameter (μm) Bulk density (g / ml) 1 Aluminum powder (FLQT1) D50＝29±3 1～2 0.8 2 Aluminum powder (FLQT3) D50＝13±2 1～2 0.9

[0041] The main modules of the high-safety automated aluminum powder processing system in this embodiment are as follows: Figure 1As shown, the system includes an automatic suction system 1, a drying system 2, an automatic weighing and dispensing system 3, an inert gas protection system 4, a negative pressure conveying and filtration system 5, and an automatic dust removal system 6. The automatic suction system 1, driven by the negative pressure conveying and filtration system 5, draws aluminum powder from the aluminum powder container to the drying system 2. The aluminum powder in the drying system 2 is dried, sieved, and then conveyed by the negative pressure conveying and filtration system 5 to the automatic weighing and dispensing system 3. The automatic weighing and dispensing system 3 weighs the aluminum powder, sieves it again, and packages it. The packaged aluminum powder is then transported to a material cart by workers to be carried to subsequent processes. During the weighing and packaging process, the automatic dust removal system 6 removes any airborne dust. The inert gas protection system provides nitrogen protection for the automatic suction system 1, the drying system 2, and the automatic weighing and dispensing system 3 throughout the entire process.

[0042] The specific structure of the high-safety automated aluminum powder processing system in this embodiment is as follows: Figure 2 and Figure 3 As shown.

[0043] The automatic suction system 1 includes a customized material cart 110, an aluminum powder bucket 120, a suction head 130, a bucket lid and suction assembly 140, an XY bidirectional displacement platform 150, and a top frame 160. The suction head 130 is equipped with a metal mesh cover 131 on its outer side. The bucket lid and suction assembly 140, in addition to the suction head 130, also includes an inflatable rubber square tube 141 and a nitrogen inlet pipe 142.

[0044] The drying system 2 includes a mold temperature controller 210, dryers 220#1 and 220#2 corresponding to two types of aluminum powder, and corresponding transition silos 230#1 and 230#2. These two sets of dryers 220 and transition silos 230 use the same mold temperature controller 210, negative pressure conveying system 5, control system, and automatic weighing and packaging system 3. With simple valve switching and control, a single production line can achieve the effect of drying different batches of aluminum powder.

[0045] The weighing and dispensing system 3 includes an automatic weighing hopper 310 and a packaging machine 320.

[0046] The inert gas preparation system 4 includes a nitrogen generation system 410 and a nitrogen delivery pipeline. The nitrogen delivery pipeline includes a pressure regulating valve, a pressure transmitter, and a pneumatic ball valve.

[0047] The negative pressure conveying system 5 includes a negative pressure fan 510, a pressure transmitter, a multi-stage filtration device 520, and a conveying pipeline.

[0048] The automatic dust removal system 6 includes a dust removal fan 610, a filter device 620, and connecting pipelines.

[0049] The conveying and connecting pipelines are all made of SS304 stainless steel and anti-static hoses.

[0050] The oxygen content monitoring system is set up with one unit at the automatic suction system 1, two units at the transition silo 230, one unit at the automatic weighing silo 310, and one unit at the negative pressure fan 510.

[0051] The specific working principle of this embodiment is as follows:

[0052] (1) The inert gas preparation system 4 starts working first, generates enough nitrogen and temporarily stores it in the storage tank, and replenishes nitrogen at any time to ensure the nitrogen supply of the whole system.

[0053] (2) The staff puts the aluminum powder raw material barrel 120 onto the material cart 110 and opens the top cover. The staff pushes the material cart 110 to the work station manually.

[0054] (3) Select the aluminum powder type in the remote control system. Then, under automatic program control, the lid and suction assembly 140 are aligned with the aluminum powder container 120 by the XY bidirectional displacement platform and descend under the cylinder drive until the lid 140 engages with the aluminum powder container 120. The rubber square tube inside the lid 140 is inflated to ensure that the lid 140 and the aluminum powder container 120 are locked together. Nitrogen gas is introduced into the lid 140 to ensure that the oxygen content in the suction system 1 is less than 5%. The suction head 130 is attached to the upper surface of the aluminum powder under the cylinder drive and remains in contact during the subsequent suction process. The negative pressure fan 510 is started, and the negative pressure interface is located at the top of the dryer 220. The aluminum powder is drawn to the corresponding dryer 220 by the valve control, wherein FLQT1 type aluminum powder is drawn to dryer 220#1 and FLQT2 type aluminum powder is drawn to dryer 220#2.

[0055] (4) Nitrogen gas is transported from the transition silo 230 to the dryer 220 to ensure that the oxygen content is below 5% during the drying process and subsequent aluminum powder transportation. Once the aluminum powder in the dryer 220 is sufficient, the drying system 2 begins operation. The mold temperature controller 210 is interlocked with the temperature sensor inside the dryer 220 to maintain a constant temperature within the dryer 220. The dried aluminum powder is then transported under negative pressure to the transition silo 210. The bottom of the transition silo 210 is equipped with a screen for initial sieving of the aluminum powder before it is transported to the self-weighing silo 310.

[0056] (5) Aluminum powder is conveyed under negative pressure from the transition hopper 230 to the automatic weighing hopper 310. The negative pressure conveying interface is located at the top of the automatic weighing hopper 310. To prevent aluminum powder from being sucked into the negative pressure fan 510, a filter device 520 is connected in the conveying pipeline, and a bag filter is installed at the negative pressure interface of the automatic weighing hopper 510. To prevent the bag filter from clogging, nitrogen pulse backflushing is added to remove aluminum powder adsorbed on the filter. The automatic weighing hopper 510 contains a screw conveyor and a weighing module, which can quantitatively convey aluminum powder to the packaging machine 320.

[0057] (6) The operator places a sufficient number of empty bags in the automatic bag magazine of the automatic bag feeding system of the packaging machine 320. The packaging machine 320 automatically picks up the empty bags and moves them to below the discharge port of the automatic weighing hopper 310, and opens the empty bags. After the bags are filled, they reach the exhaust station, and the exhaust mechanism automatically opens the bag opening. Then the exhaust device automatically inserts into the bag to suck in air. After the air sucking is completed, the exhaust device automatically resets. After the exhaust device automatically resets, the clamping mechanism clamps the bag again and sends the bag into the automatic bag-tying machine to tie the bag opening. The packaging machine is equipped with a dust removal interface, which is connected to the dust removal fan 610 through an anti-static hose and a filter device 620. The dust generated during exhaust is drawn away by the negative pressure of the dust removal system 6.

[0058] (7) The bundled aluminum powder bags are transported by conveyor to manual material cart and then transferred by staff to the subsequent process flow.

[0059] This invention enables automated aluminum powder extraction, drying, sieving, weighing, and packaging, ensuring unmanned operation of the aluminum powder processing and replacing existing manual face-to-face operations. This fundamentally reduces the safety risks that aluminum powder processing may pose to workers. Furthermore, the inert gas protection technology employed throughout the process, combined with a dust removal system and oxygen content monitoring at multiple key points, ensures that the oxygen content remains below 5% throughout the aluminum powder processing, fundamentally avoiding the safety issues of dust dispersion and frictional explosion during processing.

[0060] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

[0061] The methods and apparatus provided by the present invention have been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present invention. The descriptions of the above embodiments are only for the purpose of helping to understand the methods and core ideas of the present invention. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of the present invention. Therefore, the content of this specification should not be construed as a limitation of the present invention.

[0062] In the description of this specification, references to terms such as "an embodiment," "some embodiments," "example," "specific example," or "a specific embodiment" or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, illustrative expressions of terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0063] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A high-safety automated aluminum powder processing system, characterized in that, include: Automatic suction system, drying system, automatic weighing and dispensing system, inert gas protection system, negative pressure conveying and filtration system, automatic dust removal system, as well as oxygen content monitoring system, control system, monitoring system, and power system; Aluminum powder is sequentially passed through the automatic suction system, drying system, and automatic weighing and dispensing system into aluminum bags; the inert gas protection system fills the automatic suction system, drying system, and automatic weighing and dispensing system with inert gas, which is then passed through the drying system and automatic weighing and dispensing system into a negative pressure conveying and filtration system and an automatic dust removal system for filtration and dust removal; The inert gas protection system includes a nitrogen generation system, a two-stage pressure regulating valve, and a pressure transmitter. The nitrogen generation system is connected to the two-stage pressure regulating valve and the pressure transmitter via pipeline, and is used to provide nitrogen protection for the automatic suction system, negative pressure conveying system, drying system, and automatic packaging system throughout the entire process. The automatic suction system includes: a customized material cart, a material cart positioning structure, a suction head, an aluminum powder bucket, a bucket lid, a suction assembly, an XY bidirectional displacement platform, and a top frame. The top frame is installed on the workshop wall to support the automatic suction system. The XY bidirectional displacement platform is installed on the top frame and is driven by two sets of cylinders. The bucket lid and suction assembly are installed on the XY bidirectional displacement platform. The suction assembly houses the suction head and nitrogen inlet pipe. The bucket lid can move up and down under individual cylinder control, and an inflatable rubber square tube seal is provided inside the bucket lid to ensure a tight connection between the bucket lid and the aluminum powder bucket. The suction head moves horizontally with the bucket lid and can move up and down relative to the bucket lid under individual cylinder control. A support mesh is provided on the outside of the suction head. The customized material cart includes an aluminum powder bucket positioning structure to ensure the position of the aluminum powder bucket at any time. The drying system includes: The system includes a temperature control system, a dryer, and a transition silo. The temperature control system includes a mold temperature controller, an oil guide pipe, and a temperature sensor installed on the dryer. The transition silo is connected to the dryer. The transition silo is equipped with a nitrogen inlet, and the opening and closing of the nitrogen inlet is controlled by a pneumatic ball valve. The bottom of the transition silo is equipped with a screen for the initial sieving of aluminum powder. The automatic weighing and dispensing system includes: an automatic weighing hopper, an automatic bag feeding system, an automatic bag tying system, and an automatic conveying system; the automatic weighing hopper includes a screw conveyor, a weighing module, a filter interface, a nitrogen interface, a dust removal interface, and a screen; a bag filter is installed at the filter interface, and a pulse on / off valve is installed at the nitrogen interface to achieve nitrogen pulse backflushing and ensure the normal operation of the bag filter; the discharge port of the screw conveyor is horn-shaped and connected to the weighing module to achieve fast and slow discharge; the screen is installed at the discharge port of the screw conveyor.

2. The high-safety automated aluminum powder processing system according to claim 1, characterized in that, The negative pressure conveying and filtration system includes: a negative pressure fan, a primary filter, a secondary filter, and pipelines connecting the automatic suction system, the drying system, and the automatic weighing and dispensing system. The negative pressure fan first connects to the pressure transmitter and the secondary filter in sequence, and then is divided into two paths by a pneumatic ball valve. The first path passes through the primary filter and then connects to the drying system and the automatic suction system to achieve negative pressure conveying and filtration. The second path passes through the primary filter and then connects to the filter interface of the automatic weighing hopper to achieve negative pressure conveying and filtration.

3. The high-safety automated aluminum powder processing system according to claim 1, characterized in that, The automatic dust removal system includes a dust removal fan, a filter device, and connecting pipes. The main body of the connecting pipes is made of stainless steel and is polished and acid-washed. The bends in the connecting pipes are connected using elbows with a large radius or anti-static flexible hoses.

4. The high-safety automated aluminum powder processing system according to claim 1, characterized in that, The control system includes PLC remote control and equipment local control. The PLC remote control integrates equipment information, process parameters and control functions of the high-safety aluminum powder automated processing system, and is interlocked with the equipment local control, with priority given to field-level control.

5. The high-safety automated aluminum powder processing system according to claim 1, characterized in that, The oxygen content monitoring system is used to monitor the oxygen concentration in the plant and transmit the data to the control system.

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