Storage method of nano powder

Abstract

The invention belongs to the technical field of nanopowder storage, particularly relates to a nanopowder storage method, and provides the following scheme aiming at solving the problem that powder is blown by airflow and escaped by an existing nanopowder storage and packaging device: an outer packaging structure is provided, the outermost layer is made of a PET (Polyethylene Terephthalate) film with the thickness of 12-25 microns, and the middle layer is made of aluminum foil; the thickness is 7-12 microns, the barrier layer is made of EVOH with the thickness of 8-15 microns, and the inner layer is made of mPE with the thickness of 25-40 microns; and fixing the powder by using a powder dispersion inhibiting device, vacuumizing to-0.09 MPa before packaging, and injecting nitrogen with the purity of 99.999% for third replacement. According to the nanopowder storage method disclosed by the invention, when the hard air pipe is used for carrying out air injection packaging on the nanopowder in the packaging bag, the powder is extruded, exhausted and wrapped, so that the situation that the nanopowder is wasted due to flying dust caused by air flow generated during vacuum air exhaust and nitrogen injection is avoided, and the service life of the nanopowder is prolonged. And the cost is saved.

Description

Technical Field

[0001] The present invention relates to the technical field of nano powder storage, and in particular to a method for storing nano powder. Background Art

[0002] Nanopowders, also known as nanoparticles, generally refer to ultrafine particles ranging in size from 1 to 100 nm. Some also call them ultrafine particles. They are larger than atomic clusters but smaller than ordinary microparticles. Nanoparticles can take shapes such as spheres, plates, rods, horns, and sponges. Nanoparticles can be made of metals, oxides, or other compounds.

[0003] In the process of vacuuming and injecting nitrogen into the packaging bag containing powder in the existing nano powder storage and packaging device, due to the blowing of airflow, excessively fine nano powder will fly out of the packaging bag opening to the outside, causing the loss of nano powder and increasing costs. Summary of the Invention

[0004] The present invention discloses a nano powder storage method, which aims to solve the technical problem in the prior art that the existing nano powder storage and packaging device cannot solve the problem that the powder is blown away by airflow and is scattered.

[0005] The present invention provides a method for storing nanopowders, comprising the following steps:

[0006] S1. Outer packaging structure: The outermost layer is made of PET film with a thickness of 12-25 microns, the middle layer is made of aluminum foil with a thickness of 7-12 microns, the barrier layer is made of EVOH with a thickness of 8-15 microns, and the inner layer is made of mPE with a thickness of 25-40 microns;

[0007] S2. Use a powder suppression device to fix the powder and evacuate to -0.09 MPa before packaging. Inject 99.999% pure nitrogen three times to prevent oxygen from entering.

[0008] S3. Longitudinal edge sealing: The outer layer of PET and the inner layer of mPE are directly hot-melt bonded. Horizontal edge sealing: The four layers of material are melted together to form a stepped sealing structure.

[0009] In a preferred embodiment, the powder dispersion suppression device includes a support platform;

[0010] The bracket has a bottom fixedly connected to the upper side of the platform, a circular opening is opened on the bracket, a hydraulic rod 1 is fixedly connected in the circular opening, a hard air pipe is provided below the hydraulic rod 1, and a nitrogen delivery pipe is provided on the hard air pipe;

[0011] An annular frame, the bottom of which is fixedly connected to the upper side of the platform, and the annular frame is located below the hard air tube;

[0012] A packaging bag, the packaging bag being located in the annular frame, having a sealed bottom end and an open top end, and being located directly below the rigid air tube;

[0013] A positioning and dispersion suppression module is located on the support platform and outside the packaging bag. The positioning and dispersion suppression module is used to extrude and exhaust the powder and wrap the powder when a hard air tube is used to inject and seal the nanopowder in the packaging bag, thereby avoiding the airflow generated during vacuum extraction and nitrogen injection causing dust to scatter, resulting in waste of nanopowder and saving costs.

[0014] In a preferred embodiment, a groove is provided on the upper side of the support platform, a transmission plate is provided in the groove, a plurality of springs equidistantly distributed around the circumference are fixedly connected to the outside of the transmission plate, one end of the spring 1 away from the transmission plate is fixedly connected to the inner wall of the groove, and a motor 1 is fixedly connected to the bottom of the transmission plate, the output end of the motor 1 is connected to a cam through a coupling, and the transmission plate is located in the annular frame; a stabilizing platform is fixedly connected to the upper side of the transmission plate, a groove is provided on the upper side of the stabilizing platform, the bottom end of the packaging bag is located in the groove, and two springs are provided on the annular frame. Symmetrical slots, each of which is provided with a connecting plate, and the outside of the annular frame is fixedly connected to two hydraulic rods 2, the output ends of the hydraulic rods 2 are fixedly connected to the outside of the connecting plate on the same side, the outside of the packaging bag is slidably connected to a support frame, and the outside of the support frame is fixedly connected to the inner wall of the annular frame; the two opposite sides of the connecting plates are fixedly connected to an inclined airbag, the inclined airbags are located on the outside of the packaging bag, the outside of the connecting plate is fixedly connected to two symmetrical limit rods, and the upper side of the support is fixedly connected to a boss, and the upper side of the boss is fixedly connected to The accommodating groove is provided with a circular hole on the accommodating groove, and a threaded rod is movably connected in the circular hole; the bottom of the threaded rod is movably connected to the upper side of the boss, and an annular airbag is provided on the outside of the threaded rod, and the outside of the annular airbag is slidably connected to the inner wall of the accommodating groove, and the outside of the threaded rod is rotatably connected to a pressure plate through an external thread, and the bottom of the pressure plate is fixedly connected to the upper side of the annular airbag, and a spring 2 is provided on the upper side of the pressure plate, and the upper end of the spring 2 is in contact with the top inner wall of the accommodating groove; a turntable is fixedly connected to the upper side of the threaded rod, and the bottom of the turntable is in contact with the inner wall of the top of the accommodating groove. The upper side is slidingly connected, and two air pipes are fixedly connected to the annular airbag. The ends of the air pipes away from the annular airbag pass through the accommodating groove and enter the annular frame to be connected to the two inclined airbags respectively, and the outsides of the two air pipes are provided with vertical frames, the bottoms of the vertical frames are fixedly connected to the upper side of the base, and the outsides of the air pipes are provided with throat shrinkage joints, which are fixedly connected to the side opposite to the vertical frame on the same side, and the outsides of the throat shrinkage joints are provided with threaded grooves, and the outsides of the throat shrinkage joints are provided with knobs. The outside of the packaging bag is provided with an airtight maintenance module.

[0015] In a preferred embodiment, the airtight maintenance module includes a mounting frame, the upper side of the mounting frame is fixedly connected to the output end of the hydraulic rod one, the top inner wall of the mounting frame is fixedly connected to an air pump, the inner wall of the mounting frame is fixedly connected to the outside of the hard air pipe, the output end of the air pump is connected to the hard air pipe through a conduit, and the outside of the mounting frame is fixedly connected to two symmetrical extension plates, each of which is fixedly connected to a hydraulic rod three; the output ends of the two hydraulic rods three are fixedly connected to rubber sealing clamps, both rubber sealing clamps are located outside the hard air pipe, and the upper side of the annular frame is fixed It is connected to two symmetrical stabilizing frames, and the same side of the two stabilizing frames is fixedly connected to the same crescent plate. Narrow grooves are provided on the stabilizing frames, and guide plates are slidably connected in the narrow grooves. The opposite sides of the two guide plates are fixedly connected to electric heating clamps; the two electric heating clamps are located outside the packaging bag, and a bidirectional screw rod is provided above the crescent plate. Two symmetrical convex seats are provided on the outside of the bidirectional screw rod, and the convex seats are fixedly connected to the opposite sides of the electric heating clamps on the same side, and the upper side of the crescent plate is fixedly connected to motor 2, and the output end of motor 2 is connected to one side of the bidirectional screw rod through a coupling.

[0016] As can be seen from the above, the nano powder storage method provided by the present invention can squeeze and exhaust the powder and wrap the powder when using a hard air tube to inject and seal the nano powder in the packaging bag, thereby avoiding the airflow generated during vacuum extraction and nitrogen injection causing dust to be scattered, resulting in waste of nano powder, and saving costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a process schematic diagram of a nanopowder storage method proposed in the present invention;

[0018] Figure 2 This is a schematic diagram of the overall structure of a nanopowder storage method proposed in the present invention;

[0019] Figure 3 This is a schematic cross-sectional view of a nanopowder storage method proposed by the present invention;

[0020] Figure 4 This is a schematic diagram of the structure of a positioning and dispersion suppression module of a nanopowder storage method proposed in the present invention;

[0021] Figure 5 This is a schematic diagram of the transmission plate and connecting plate structure of a nano powder storage method proposed in the present invention;

[0022] Figure 6 A schematic diagram of a storage tank structure for a nanopowder storage method proposed in the present invention;

[0023] Figure 7 This is a schematic diagram of the installation frame structure of a nanopowder storage method proposed in the present invention;

[0024] Figure 8 This is a schematic diagram of the stabilizing frame structure of a nanopowder storage method proposed in the present invention.

[0025] In the figure: 1, support platform; 2, bracket; 3, ring frame; 4, packaging bag; 5, hydraulic rod 1; 6, hard air pipe; 7, positioning and dispersion suppression module; 701, stabilization platform; 702, support frame; 703, transmission plate; 704, spring 1; 705, motor 1; 706, cam; 707, hydraulic rod 2; 708, connecting plate; 709, inclined airbag; 710, limit rod; 711, air pipe; 712, stand; 713, throat reduction joint; 714, knob; 7 15. Boss; 716. Receiving groove; 717. Threaded rod; 718. Annular airbag; 719. Pressure plate; 720. Spring 2; 721. Turntable; 8. Airtightness holding module; 801. Mounting frame; 802. Air pump; 803. Extension plate; 804. Rubber sealing clamp; 805. Hydraulic rod 3; 806. Crescent plate; 807. Stabilizing frame; 808. Guide plate; 809. Electric heating clamp; 810. Bidirectional screw rod; 811. Motor 2; 9. Nitrogen delivery pipe. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0027] The nano powder storage method disclosed in the present invention is mainly applied to the scenario where the existing nano powder storage and packaging device cannot solve the problem that the powder is blown away by airflow and dispersed.

[0028] Reference Figure 1 , a method for storing nanopowder, comprising the following steps:

[0029] S1. Outer packaging structure: The outermost layer is made of PET film with a thickness of 12-25 microns, the middle layer is made of aluminum foil with a thickness of 7-12 microns, the barrier layer is made of EVOH with a thickness of 8-15 microns, and the inner layer is made of mPE with a thickness of 25-40 microns;

[0030] S2. Use a powder suppression device to fix the powder and evacuate to -0.09 MPa before packaging. Inject 99.999% pure nitrogen three times to prevent oxygen from entering.

[0031] S3. Longitudinal edge sealing: The outer layer of PET and the inner layer of mPE are directly hot-melt bonded. Horizontal edge sealing: The four layers of material are melted together to form a stepped sealing structure.

[0032] Reference Figure 2-Figure 8, a method for storing nano powder, wherein the powder dispersion suppression device in S2 includes a support 1;

[0033] Bracket 2, the bottom of bracket 2 is connected to the upper side of platform 1 by bolts, a circular opening is opened on bracket 2, a hydraulic rod 5 is connected to the circular opening by bolts, a hard air pipe 6 is provided below the hydraulic rod 5, and a nitrogen delivery pipe 9 is provided on the hard air pipe 6;

[0034] The annular frame 3, the bottom of the annular frame 3 is connected to the upper side of the platform 1 by bolts, and the annular frame 3 is located below the hard air tube 6;

[0035] The packaging bag 4 is located in the annular frame 3, with the bottom end of the packaging bag 4 sealed and the top end open, and the packaging bag 4 is located directly below the hard air tube 6;

[0036] Positioning and suppression module 7, positioning and suppression module 7 is located on the base 1, outside the packaging bag 4, positioning and suppression module 7 is used to extrude and exhaust the powder and wrap the powder when using the hard air tube 6 to perform gas injection packaging on the nano powder in the packaging bag 4, thereby avoiding the airflow generated during vacuum extraction and nitrogen injection causing dust to be scattered, resulting in waste of nano powder, and saving costs.

[0037] Reference Figure 4 、 Figure 5 and Figure 6In a preferred embodiment, a groove is provided on the upper side of the support 1, and a transmission plate 703 is provided in the groove. The outside of the transmission plate 703 is connected to a plurality of springs 704 equidistantly distributed around the circumference by bolts. The ends of the springs 704 away from the transmission plate 703 are connected to the inner wall of the groove by bolts, and the bottom of the transmission plate 703 is connected to a motor 705 by bolts. The output end of the motor 705 is connected to a cam 706 through a coupling. The transmission plate 703 is located in the annular frame 3; the upper side of the transmission plate 703 is connected to a stabilizing platform 701 by bolts. A groove is provided on the upper side of the stabilizing platform 701, and the bottom end of the packaging bag 4 is located in the groove. Two symmetrical slots are provided on the annular frame 3. The outer side of the annular frame 3 is connected to two hydraulic rods 707 by bolts. The output ends of the hydraulic rods 707 are connected to the outer sides of the connecting plates 708 on the same side by bolts. The outer side of the packaging bag 4 is slidably connected to the support frame 702. The outer side of the support frame 702 is connected to the inner wall of the annular frame 3 by bolts. The opposite sides of the two connecting plates 708 are connected to the inclined airbags 709 by bolts. The inclined airbags 709 are located on the outside of the packaging bag 4. The outer sides of the connecting plates 708 are connected to two symmetrical limiting rods 710 by bolts. The upper side of the support platform 1 is connected to the boss 715 by bolts. The upper side of the boss 715 is connected to the receiving groove 716 by bolts. 16 is provided with a circular hole, in which a threaded rod 717 is rotatably connected through a bearing; the bottom of the threaded rod 717 is rotatably connected to the upper side of the boss 715 through a bearing, and an annular airbag 718 is provided on the outside of the threaded rod 717, and the outside of the annular airbag 718 is slidably connected to the inner wall of the receiving groove 716, and the outside of the threaded rod 717 is rotatably connected to a pressure plate 719 through an external thread, and the bottom of the pressure plate 719 is connected to the upper side of the annular airbag 718 by bolts, and a spring 2 720 is provided on the upper side of the pressure plate 719, and the upper end of the spring 2 720 is in contact with the top inner wall of the receiving groove 716; the upper side of the threaded rod 717 is connected to a turntable 721 by bolts, and the bottom of the turntable 721 is connected to the receiving groove 716 The upper side of the annular airbag 718 is slidably connected, and two air pipes 711 are connected to the annular airbag 718 by bolts. The ends of the air pipes 711 away from the annular airbag 718 pass through the accommodating groove 716 and enter the annular frame 3 to be connected with the two inclined airbags 709 respectively, and the outsides of the two air pipes 711 are provided with vertical frames 712, and the bottoms of the vertical frames 712 are connected to the upper side of the base 1 by bolts. The outsides of the air pipes 711 are provided with throat shrinkage joints 713, and the throat shrinkage joints 713 are connected to the side opposite to the vertical frames 712 on the same side by bolts. The outsides of the throat shrinkage joints 713 are provided with threaded grooves, and the outsides of the throat shrinkage joints 713 are provided with knobs 714. The outside of the packaging bag 4 is provided with an airtight maintaining module 8.

[0038] Specifically, the packaging bag 4 containing the nano powder is placed on the stabilizing table 701 through the support 702, ensuring that the sealed end of the bottom of the packaging bag 4 is placed in the groove on the stabilizing table 701, and the hydraulic rod 2 707 is started to push the connecting plate 708 toward the packaging bag 4 until the relative limiting rods 710 contact each other, and the motor 1 705 is started. The motor 1 705 drives the cam 706 to rotate and generate vibration, so that the transmission plate 703 transmits the vibration to the packaging bag 4 on the stabilizing table 701, so that the powder in the packaging bag 4 expel the air between the powders during the vibration and becomes Tamp, turn the turntable 721, the turntable 721 drives the threaded rod 717 to rotate, so that the pressure plate 719 overcomes the pulling force of the spring 2 720 and moves downward and compresses the annular airbag 718, so that the annular airbag 718 transmits the gas into the inclined airbag 709 through the gas pipe 711, turn the knob 714, and move the knob 714 on the throat joint 713, thereby changing the cross-sectional area of ​​the gas pipe 711 and controlling the flow of gas. The inclined airbag 709 is inflated and gradually presses the packaging bag 4 and the powder in the packaging bag 4 from bottom to top, thereby confining the powder in the convex cavity formed by the packaging bag 4.

[0039] In a specific application scenario, the positioning and suppression module 7 is mainly suitable for the positioning and suppression link in the positioning and suppression process, that is, the positioning and suppression module 7 uses the vibration generated by the motor 705 and the cam 706 to compact the fluffy powder in the packaging bag 4, thereby effectively expelling the air in the powder, and uses the annular airbag 718 to transport gas to the inclined airbag 709 with an inclined surface, so that the inclined airbag 709 can gradually squeeze the packaging bag 4 to wrap the powder, so that the powder can be fixed in the packaging bag 4, eliminating the flow of powder, and the throat joint 713 and the knob 714 can be used to change the cross-sectional area of ​​the air supply pipe 711, thereby effectively controlling the flow rate of the air in the annular airbag 718, such as the inclined airbag 709, and avoiding the inclined airbag 709 from expanding too quickly and squeezing the powder out of the packaging bag 4.

[0040] Reference Figure 7 and Figure 8In a preferred embodiment, the airtight maintenance module 8 includes a mounting frame 801, the upper side of the mounting frame 801 is connected to the output end of the hydraulic rod 5 by bolts, the top inner wall of the mounting frame 801 is connected to the air pump 802 by bolts, the inner wall of the mounting frame 801 is connected to the outside of the hard air pipe 6 by bolts, the output end of the air pump 802 is connected to the hard air pipe 6 through a conduit, and the outside of the mounting frame 801 is connected to two symmetrical extension plates 803 by bolts, and the extension plates 803 are both connected to the hydraulic rod 3 805 by bolts; the output ends of the two hydraulic rods 3 805 are both connected to rubber sealing clamps 804 by bolts, and the two rubber sealing clamps 804 are both located outside the hard air pipe 6, and the upper side of the annular frame 3 is connected by bolts. Two symmetrical stabilizing frames 807 are bolted together, and the same side of the two stabilizing frames 807 is bolted to the same crescent plate 806. Narrow grooves are provided on the stabilizing frames 807, and guide plates 808 are slidably connected in the narrow grooves. The opposite sides of the two guide plates 808 are bolted to electric heating clamps 809; the two electric heating clamps 809 are both located outside the packaging bag 4, and a bidirectional screw rod 810 is provided above the crescent plate 806. Two symmetrical bosses are provided on the outside of the bidirectional screw rod 810, and the bosses are bolted to the opposite sides of the electric heating clamps 809 on the same side, and the upper side of the crescent plate 806 is bolted to motor 2 811, and the output end of motor 2 811 is connected to one side of the bidirectional screw rod 810 through a coupling.

[0041] Specifically, after the powder is fixed using the positioning and dispersion suppression module 7, the hydraulic rod 1 5 is started, and the output end of the hydraulic rod 1 5 is lowered, thereby driving the hard air tube 6 to be inserted into the opening on the packaging bag 4. The hydraulic rod 3 805 is started, and the output end of the hydraulic rod 3 805 is extended, squeezing the packaging bag 4 between the two rubber sealing clamps 804 and fitting it to the outside of the hard air tube 6. The air pump 802 is started, and the air pump 802 extracts the air in the packaging bag 4, and a proper amount of nitrogen is injected into the packaging bag 4 using the nitrogen delivery pipe 9. Repeat the above steps. Three times. After the last nitrogen injection, start motor 2 811. Motor 2 811 drives the bidirectional screw 810 to rotate, so that the two electric heating clamps 809 approach each other and squeeze the packaging bag 4 together. Start the electric heating clamp 809. The electric heating clamp 809 heats the packaging bag 4, so that the packaging bag 4 melts and sticks together. Start hydraulic rod 3 805 again, retract the output end of hydraulic rod 3 805, thereby separating the rubber sealing clamp 804. Start hydraulic rod 1 5, retract the output end of hydraulic rod 1 5, and retract the hard air tube 6 from the packaging bag 4.

[0042] In a specific application scenario, the airtight maintaining module 8 is mainly suitable for the airtight maintaining link in the airtight maintaining process, that is, the airtight maintaining module 8 uses the rubber sealing clamp 804 to ensure that gas will not enter or leak from the interface when the hard air tube 6 is evacuated and injected. The electric heating clamp 809 and the bidirectional screw 810 can be used to seal the open mouth of the packaging bag 4 after the nitrogen injection is completed, thereby avoiding the external gas from entering the packaging bag 4 after the hard air tube 6 is pulled out, causing pollution to the gas environment inside the packaging bag 4, and ensuring the airtightness of the packaging bag 4 after packaging.

[0043] Working principle: Place the packaging bag 4 filled with nano powder on the stabilizing table 701 through the support 702, make sure that the bottom sealing end of the packaging bag 4 is placed in the groove on the stabilizing table 701, start the hydraulic rod 2 707, so that the hydraulic rod 2 707 pushes the connecting plate 708 to the packaging bag 4 until the relative limiting rods 710 contact each other, start the motor 1 705, and the motor 1 705 drives the cam 706 to rotate and generate vibration, so that the transmission plate 703 transmits the vibration to the packaging bag 4 on the stabilizing table 701, so that the powder in the packaging bag 4 is shaken by the vibration. The air in the air bag is discharged and becomes compacted. The turntable 721 is turned, and the turntable 721 drives the threaded rod 717 to rotate, so that the pressure plate 719 overcomes the tension of the spring 2 720 and moves downward to press the annular air bag 718, so that the annular air bag 718 transmits the gas into the inclined air bag 709 through the gas pipe 711. The knob 714 is turned to move the knob 714 on the throat joint 713, thereby changing the cross-sectional area of ​​the gas pipe 711 and controlling the flow of gas. The inclined air bag 709 is inflated and gradually presses the packaging bag 4 and the powder in the packaging bag 4 from bottom to top, thereby The powder is confined in the convex cavity formed by the packaging bag 4. After the powder is fixed using the positioning and dispersion suppression module 7, the hydraulic rod 1 5 is started, and the output end of the hydraulic rod 1 5 is lowered, thereby driving the hard air tube 6 to be inserted into the opening on the packaging bag 4. The hydraulic rod 3 805 is started, and the output end of the hydraulic rod 3 805 is extended, squeezing the packaging bag 4 between the two rubber sealing clamps 804 and fitting it to the outside of the hard air tube 6. The air pump 802 is started, and the air pump 802 extracts the air in the packaging bag 4. A proper amount of nitrogen is injected into the packaging bag 4 using the nitrogen delivery pipe 9. According to the above The steps are repeated three times. After the last nitrogen injection, the motor 2 811 is started. The motor 2 811 drives the bidirectional screw 810 to rotate, so that the two electric heating clamps 809 are close to each other and squeeze the packaging bag 4 together. The electric heating clamp 809 is started. The electric heating clamp 809 heats the packaging bag 4, so that the packaging bag 4 melts and sticks together. The hydraulic rod 3 805 is started again, and the output end of the hydraulic rod 3 805 is retracted, thereby separating the rubber sealing clamp 804. The hydraulic rod 1 5 is started, and the output end of the hydraulic rod 1 5 is retracted to retract the hard air tube 6 from the packaging bag 4.

[0044] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A method for storing nanopowder, characterized in that: The following steps are involved: S1. Outer packaging structure: The outermost layer is made of PET film with a thickness of 12-25 microns, the middle layer is made of aluminum foil with a thickness of 7-12 microns, the barrier layer is made of EVOH with a thickness of 8-15 microns, and the inner layer is made of mPE with a thickness of 25-40 microns; S2. Use a powder suppression device to fix the powder and evacuate to -0.09 MPa before packaging. Inject 99.999% pure nitrogen three times to prevent oxygen from entering. S3. Longitudinal edge sealing: The outer layer of PET and the inner layer of mPE are directly hot-melt bonded. Horizontal edge sealing: The four layers of material are melted together to form a stepped sealing structure.

2. A powder dispersion suppression device, characterized in that: including abutment (1); A bracket (2), wherein the bottom of the bracket (2) is fixedly connected to the upper side of the support platform (1), a circular opening is provided on the bracket (2), a hydraulic rod (5) is fixedly connected in the circular opening, a hard air pipe (6) is provided below the hydraulic rod (5), and a nitrogen delivery pipe (9) is provided on the hard air pipe (6); An annular frame (3), the bottom of the annular frame (3) is fixedly connected to the upper side of the support platform (1), and the annular frame (3) is located below the hard air tube (6); A packaging bag (4), wherein the packaging bag (4) is located in the annular frame (3), the bottom end of the packaging bag (4) is sealed, the top end is open, and the packaging bag (4) is located directly below the hard air tube (6); A positioning and dispersion suppression module (7) is located on a support platform (1) and outside a packaging bag (4). The positioning and dispersion suppression module (7) is used to squeeze and exhaust the powder and wrap the powder when a hard air tube (6) is used to perform gas injection packaging on the nano powder in the packaging bag (4), thereby avoiding the airflow generated during vacuum extraction and nitrogen injection causing dust scattering and waste of nano powder, thereby saving costs.

3. A powder suppression device according to claim 2, characterized in that: A groove is provided on the upper side of the support platform (1), and a transmission plate (703) is provided in the groove. The outside of the transmission plate (703) is fixedly connected to a plurality of springs (704) distributed equidistantly around the circumference. One end of the spring (704) away from the transmission plate (703) is fixedly connected to the inner wall of the groove. A motor (705) is fixedly connected to the bottom of the transmission plate (703). The output end of the motor (705) is connected to a cam (706) via a coupling. The transmission plate (703) is located in the annular frame (3).

4. A powder suppression device according to claim 3, characterized in that: The upper side of the transmission plate (703) is fixedly connected to a stabilizing platform (701), the upper side of the stabilizing platform (701) is provided with a slot, the bottom end of the packaging bag (4) is located in the slot, the annular frame (3) is provided with two symmetrical slots, each of which is provided with a connecting plate (708), and the outside of the annular frame (3) is fixedly connected to two hydraulic rods (707), the output ends of the hydraulic rods (707) are fixedly connected to the outside of the connecting plate (708) on the same side, the outside of the packaging bag (4) is slidably connected to a support frame (702), and the outside of the support frame (702) is fixedly connected to the inner wall of the annular frame (3).

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