A powder storage device for powder metallurgy

Abstract

The application relates to the powder metallurgy technical field and discloses a powder storage device for powder metallurgy, which comprises a storage tank and a support, and further comprises a screening device, the screening device comprises a screening structure and a recovery structure, the screening structure comprises a first rotating shaft, a synchronous belt, a conical feeding roller and a feeding box, the first rotating shaft is arranged above the storage tank, the synchronous belt is drivingly connected to the right end of the first rotating shaft, the conical feeding roller is fixedly connected to the surface of the first rotating shaft, and the feeding box is sleeved with the conical feeding roller outside, the recovery structure comprises a partition plate, a fine powder channel, a coarse powder collecting box and a discharge port, the partition plate is fixedly connected to the inner side of the feeding box, and the fine powder channel is fixedly connected below the feeding box. The powder is subjected to multi-layer screening without affecting the feeding efficiency, the screening precision and the processing efficiency are improved, the coarse powder screened out is conveniently collected, and the work efficiency of the staff is improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of powder metallurgy, in particular to a powder storage device for powder metallurgy. BACKGROUND

[0002] In the powder metallurgy process, the storage of powder materials is very important, and the powder materials are usually used in the form of a large amount of powder and need to be safely stored and provided to the production line. Before the powder materials are stored, they need to be strictly screened. The existing device is slow when screening powder, time-consuming and laborious, which seriously affects the work efficiency and is not conducive to loading a large amount of powder.

[0003] Patent No. CN202011350920.8 discloses a powder storage device for powder metallurgy. The internal feeding device of the patent can perform double screening before powder storage, and the circulating drying device can perform circulating flow drying inside the storage bin to prevent uneven drying effect inside the material during drying and form humidity steps. The internal powder is mixed by the stirring device to further improve the drying effect, which is beneficial to storage, improves the shortcomings of the existing device, has high practicality and market prospect, and is suitable for wide range of popularization and use. Although the patent solves the above problems, the screening device is too common, and the powder needs to be screened layer by layer, which is low in feeding efficiency and seriously affects the work efficiency. Therefore, it is necessary to design a powder storage device for powder metallurgy that can screen powder in multiple layers without affecting the feeding efficiency, improve the screening accuracy and processing efficiency, and more conveniently collect the coarse powder screened out, thereby improving the work efficiency of workers. SUMMARY

[0004] The present application relates to the technical field of powder metallurgy, in particular to a powder storage device for powder metallurgy.

[0005] In order to solve the above technical problems, the present application provides the following technical scheme: a kind of powder storage equipment for powder metallurgy, including storage tank and support, the storage tank and support also include screening device, the screening device includes screening structure and recovery structure, the screening structure includes first rotating shaft, synchronous belt, conical feeding roller, feed tank, the first rotating shaft is set above storage tank, the synchronous belt is driven connection in the right end of first rotating shaft, the conical feeding roller is fixedly connected on the surface of first rotating shaft, the feed tank is sleeved in the outside of conical feeding roller, the recovery structure includes baffle, fine material channel, coarse material collection box, discharge port, the baffle is fixedly connected in the inboard of feed tank, the fine material channel is fixedly connected below feed tank, the coarse material collection box is fixedly connected below feed tank, the discharge port is fixedly connected in the back of coarse material collection box, the fine material channel is fixedly connected with the top of support, the storage tank is fixedly connected with the bottom of support, the first rotating shaft is mirror image with two along the transverse central axis of feed tank, motor is arranged in the right side of first rotating shaft, the coarse material collection box is embedded in the upper left corner of fine material channel, mesh is opened in the bottom surface of coarse material collection box, the fine material channel is fixedly connected with the right side of storage tank, motor drives first rotating shaft to rotate, first rotating shaft drives conical feeding roller to rotate, powder is poured into feed tank, powder falls on conical feeding roller, fine material falls from the gap in the right end of two conical feeding rollers, coarse material falls from the gap in the left end of two conical feeding rollers, the rotation of two conical feeding rollers can screen powder while feeding, fine material falls into fine material channel from conical feeding roller, and then slides into storage tank from fine material channel, coarse material falls into coarse material collection box from conical feeding roller, the fine material that is not screened in coarse material falls into fine material channel from the mesh opened in the bottom surface of coarse material collection box, to realize more fine screening, then coarse material is discharged from discharge port and further processed, the device screens powder in multiple layers without affecting the efficiency of feeding, improves screening precision and processing efficiency, and it is more convenient to collect coarse material screened, improves the work efficiency of staff.

[0006] According to the technical scheme, the left side of the fine material passage is provided with an oxygen removal device, the oxygen removal device comprises a nitrogen filling structure and a uniform contact structure, the nitrogen filling structure comprises a nitrogen generator, a nozzle, a second rotating shaft and a turbine, the nitrogen generator is fixedly connected to the bottom of the support, the nozzle is fixedly connected above the nitrogen generator, the second rotating shaft penetrates into the middle of the storage tank, the turbine is fixedly connected to the bottom end of the second rotating shaft, the uniform contact structure comprises a booster cavity, an air outlet mesh cylinder, an agitating plate, an air cavity and a pressure piston, the booster cavity is fixedly connected to the bottom of the storage tank, the air outlet mesh cylinder is fixedly connected above the booster cavity, the agitating plate is fixedly connected to the surface of the second rotating shaft, the air cavity is fixedly connected above the booster cavity, the pressure piston is slidingly connected to the inner side of the air cavity, the nitrogen generator is fixedly connected to the bottom surface of the storage tank, the nozzle penetrates into the bottom of the storage tank, the bottom end of the pressure piston is fixedly connected with a spring which is fixedly connected to the inner side of the air cavity, the nitrogen generator injects nitrogen into the nozzle, the nozzle sprays the nitrogen into the booster cavity, and then the nitrogen enters the air outlet mesh cylinder through the booster cavity, at this time, the motor drives the second rotating shaft to rotate, the second rotating shaft drives the turbine to rotate, and when the nitrogen is blown upward, the turbine forms a vortex to disperse to the surrounding, when part of the nitrogen rises to the upper part of the air outlet mesh cylinder, it is also stirred by the stirring paddle and flows to the surrounding, thereby rapidly filling the inside of the storage tank, removing oxygen in the inside of the storage tank, preventing the oxidation of the powder caused by the contact with oxygen during storage, and increasing the contact area between the nitrogen and the powder in the inside of the storage tank by arranging the air outlet mesh cylinder in the inside of the storage tank, so that the oxygen removal efficiency is higher, when the nitrogen enters the booster cavity, because the piston blocks the outlet of the air cavity, the pressure of the nitrogen is not enough to enter the air cavity from the booster cavity and then enter the air outlet mesh cylinder, when the front nitrogen is retained in the booster cavity, it is pressed by the continuously injected nitrogen behind, the pressure of the nitrogen is increased to open the piston and enter the air outlet mesh cylinder, the air pressure in the inside of the air outlet mesh cylinder is higher than that outside, so that the nitrogen disperses outward more quickly, thereby removing oxygen more quickly and further improving the oxygen removal efficiency.

[0007] According to the above technical scheme, the outer part of the air outlet net cylinder is provided with an anti-caking device, the anti-caking device comprises an agitating structure and a vibrating structure, the agitating structure comprises a third rotating shaft, an agitating impeller and a flow guide plate, the third rotating shaft is rotationally connected to the inner bottom end of the storage tank, the agitating impeller is fixedly connected to the surface of the third rotating shaft, and the flow guide plate is fixedly connected to the surface of the air outlet net cylinder; the vibrating structure comprises a vibrating plate, a knocking block, an elastic sheet and a struck block, the vibrating plate is slidingly connected to the bottom of the storage tank, the knocking block is fixedly connected to the bottom end of the third rotating shaft, the elastic sheet is fixedly connected below the vibrating plate, the struck block is fixedly connected to one side of the elastic sheet, the third rotating shaft penetrates through the bottom surface of the vibrating plate, and an arc-shaped groove is formed in the inner side of the vibrating plate and in sliding connection with the boost chamber; when the nitrogen gas is blown out of the air outlet net cylinder, the nitrogen gas is guided by the flow guide plate and is blown out at an oblique angle, so that a pushing force is generated when the nitrogen gas is blown onto the blades of the agitating impeller, the agitating impeller is rotated, the agitating rotation agitates the powder in the storage tank, the powder is prevented from being agglomerated to affect the processing quality, the agitating impeller is rotated to drive the third rotating shaft to rotate, the third rotating shaft drives the knocking block to rotate, the knocking block knocks the struck block once per rotation, the struck block is extruded against the elastic sheet after being knocked, the elastic sheet is folded after being extruded, the elastic sheet is unfolded under the elastic action, the elastic sheet is unfolded to drive the struck block to reset, the struck block is reset to vibrate instantaneously, the vibrating plate is vibrated, the vibrating plate is vibrated to make the powder jump, the powder is further dispersed to be more difficult to be agglomerated, and the powder is replaced in position when jumping, so that all the powder can be agitated to be more uniformly dispersed, the powder is prevented from being agglomerated locally, and the processing quality is further improved.

[0008] According to the above technical scheme, the vibrating plate is externally provided with a dehumidifying device, the dehumidifying device comprises a dehumidifying structure and a moisture discharging structure, the dehumidifying structure comprises a drying box, a top cover and a sliding cover, the drying box is fixedly connected to the top of the storage tank, the top cover is fixedly connected above the drying box, and the sliding cover is slidingly connected to the inner side of the top cover, the moisture discharging structure comprises a ventilation hole, an inner mesh surface, an outer sleeve and a moisture discharging pipe, the ventilation hole is arranged at the bottom of the drying box, the inner mesh surface is arranged on the surface of the storage tank, the outer sleeve is fixedly connected to the outer side of the inner mesh surface, and the moisture discharging pipe is fixedly connected to the bottom surface of the outer sleeve, the drying box is fixedly connected to the top end of the air outlet mesh cylinder, the top end of the first rotating shaft is provided with a motor, and the motor is fixedly connected to the top surface of the top cover, the outer sleeve is fixedly connected to the upper and lower end surfaces of the storage tank, the first rotating shaft is rotatably connected to the top end of the outer sleeve, and the fine material channel penetrates into the inner side of the outer sleeve; the sliding cover is slid, the drying box is opened, the drying agent is placed in the drying box, the drying agent is in contact with the air in the storage tank through the mesh holes arranged at the bottom surface of the drying box to perform dehumidification, the powder is prevented from being dampened to cause inconvenience in processing, the nitrogen gas enters the drying box through the ventilation hole to be in contact with the drying agent, the nitrogen gas flow makes the drying agent more quickly spread, the dehumidification efficiency of the drying agent is improved, the nitrogen gas and the drying agent are mixed together to compress the air in the storage tank, the moisture attached to the air is squeezed into the outer sleeve through the inner mesh surface, so that the dry and wet separation is quickly achieved, the nitrogen gas occupies the upper half of the outer sleeve after entering the outer sleeve, the humidity density is large, is compressed downward to condense, and is finally discharged from the moisture discharging pipe, the storage tank is completely dried, the powder is stored in a dry environment, and the later processing is facilitated.

[0009] Compared with the prior art, the present application has the following beneficial effects:

[0010] The present application, by setting the baffle, fine material channel, coarse material collecting box and discharge port, the fine material in the coarse material that has not been cleaned by the sieve falls into the fine material channel from the mesh holes arranged at the bottom surface of the coarse material collecting box, so as to realize more fine screening, and then the coarse material is discharged from the discharge port for further processing. The device performs multi-layer screening on the powder without affecting the feeding efficiency, improves the screening precision and processing efficiency, and is more convenient for collecting the screened coarse material, improves the work efficiency of the workers;

[0011] The present application, by setting the baffle, fine material channel, coarse material collecting box and discharge port, the fine material in the coarse material that has not been cleaned by the sieve falls into the fine material channel from the mesh holes arranged at the bottom surface of the coarse material collecting box, so as to realize more fine screening, and then the coarse material is discharged from the discharge port for further processing. The device performs multi-layer screening on the powder without affecting the feeding efficiency, improves the screening precision and processing efficiency, and is more convenient for collecting the screened coarse material, improves the work efficiency of the workers;

[0012] The present application, by being provided with a vibrating plate, a knocking block, a spring sheet, and a struck block, the struck block generates vibration at the moment of reset, drives the vibrating plate to vibrate, and the vibrating plate vibration makes the powder jump, which further disperses and is more difficult to form a group, and the powder jumps and replaces the position, so that all the powder can be stirred, and the dispersion is more uniform, avoiding local group formation of the powder, and further improving the processing quality;

[0013] The present application, by being provided with a ventilation hole, an inner mesh surface, an outer sleeve, and a moisture removal pipe, nitrogen and a drying agent are mixed together to compress the air in the storage tank, so that the moisture attached in the air is squeezed into the outer sleeve through the inner mesh surface, so that dry and wet separation is quickly achieved, nitrogen enters the outer sleeve first, occupies the upper half of the outer sleeve, the humidity is relatively large, is compressed downward and condensed, and is finally discharged from the moisture removal pipe, so that the storage tank is completely dried, the powder is stored in a dry environment, and the later processing is facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0014] The accompanying drawings are included to provide a further understanding of the present application, and constitute a part of the specification, and are used together with embodiments of the present application to explain the present application, and do not constitute a limitation on the present application.

[0015] In the drawings:

[0016] Figure 1 is a right side orthographic three-axis surface overall structure schematic diagram of the present application;

[0017] Figure 2 is a right side orthographic three-axis surface cross-sectional structure schematic diagram of the present application;

[0018] Figure 3 is a right side orthographic three-axis surface cross-sectional structure schematic diagram of the screening device of the present application;

[0019] Figure 4 is a structure schematic diagram of A in the present application; Figure 3

[0020] Figure 5 is a right side orthographic three-axis surface cross-sectional structure schematic diagram of the oxygen removal device of the present application;

[0021] Figure 6 is a structure schematic diagram of B in the present application; Figure 5

[0022] Figure 7 is a side bottom surface cross-sectional structure schematic diagram of the anti-caking device of the present application;

[0023] Figure 8 is a structure schematic diagram of C in the present application; Figure 7

[0024] Figure 9 ​​​It is the left side right triaxial surface profile perspective structural schematic diagram of dehumidification device of the present application;

[0025] In the figure: 1, storage tank; 6, support; 2, screening device; 21, first rotating shaft; 22, synchronous belt; 23, conical feeding roller; 24, feeding box; 25, partition; 26, fine material channel; 27, coarse material collecting box; 28, discharge port; 3, oxygen removal device; 31, nitrogen generator; 32, nozzle; 33, second rotating shaft; 34, turbine; 35, booster cavity; 36, air outlet mesh cylinder; 37, stirring plate; 38, air cavity; 39, pressure piston; 4, anti-caking device; 41, third rotating shaft; 42, stirring impeller; 43, guide plate; 44, vibrating plate; 45, knocking block; 46, elastic sheet; 47, struck block; 5, dehumidification device; 51, drying box; 52, top cover; 53, sliding cover; 54, air hole; 55, inner mesh surface; 56, outer sleeve; 57, dehumidification pipe. DETAILED DESCRIPTION

[0026] The technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present application.

[0027] Please refer to Figures 1-4One embodiment of the present application is: a powder storage device for powder metallurgy, comprising a storage tank 1 and a support 6, the storage tank 1 and the support 6 further comprising a screening device 2, the screening device 2 comprising a screening structure and a recovery structure, the screening structure comprising a first rotating shaft 21, a synchronous belt 22, a conical feeding roller 23, and a feeding box 24, the first rotating shaft 21 being arranged above the storage tank 1, the synchronous belt 22 being drivingly connected to the right end of the first rotating shaft 21, the conical feeding roller 23 being fixedly connected to the surface of the first rotating shaft 21, and the feeding box 24 being sleeved outside the conical feeding roller 23, the first rotating shaft 21 being driven to rotate by a motor, the first rotating shaft 21 driving the conical feeding roller 23 to rotate, the powder being poured into the feeding box 24, the powder falling on the conical feeding roller 23, the fine powder falling from the right end gap of the two conical feeding rollers 23, the coarse powder falling from the left end gap of the two conical feeding rollers 23, the two conical feeding rollers 23 being rotatably matched to screen the powder while feeding, the recovery structure comprising a partition plate 25, a fine powder channel 26, a coarse powder collecting box 27, and a discharge port 28, the partition plate 25 being fixedly connected to the inner side of the feeding box 24, the fine powder channel 26 being fixedly connected below the feeding box 24, the coarse powder collecting box 27 being fixedly connected below the feeding box 24, and the discharge port 28 being fixedly connected to the rear side of the coarse powder collecting box 27, the fine powder channel 26 being fixedly connected to the top of the support 6, the storage tank 1 being fixedly connected to the bottom of the support 6, two first rotating shafts 21 being arranged in mirror image along the transverse central axis of the feeding box 24, a motor being arranged on the right side of the first rotating shaft 21, the coarse powder collecting box 27 being embedded in the upper left corner of the fine powder channel 26, the bottom surface of the coarse powder collecting box 27 being provided with mesh holes, the fine powder channel 26 being fixedly connected to the right side of the storage tank 1, the fine powder falling from the conical feeding roller 23 into the fine powder channel 26 and then sliding into the storage tank 1, the coarse powder falling from the conical feeding roller 23 into the coarse powder collecting box 27, the fine powder not screened out of the coarse powder falling from the mesh holes in the bottom surface of the coarse powder collecting box 27 into the fine powder channel 26, thereby achieving more precise screening, and then the coarse powder being discharged from the discharge port 28 for further processing, the device screening the powder in multiple layers without affecting the feeding efficiency, improving the screening precision and processing efficiency, and being more convenient for collecting the screened coarse powder, thereby improving the work efficiency of the workers;

[0028] Working principle: the motor drives the first rotating shaft 21 to rotate, the first rotating shaft 21 drives the conical feeding roller 23 to rotate, the powder is poured into the feeding box 24, the powder falls on the conical feeding roller 23, the fine powder falls from the right end gap of the two conical feeding rollers 23, the coarse powder falls from the left end gap of the two conical feeding rollers 23, the two conical feeding rollers 23 rotate and cooperate to screen the powder while feeding, the fine powder falls into the fine powder channel 26 from the conical feeding roller 23, and then slides into the storage tank 1 from the fine powder channel 26, the coarse powder falls into the coarse powder collecting box 27 from the conical feeding roller 23, the fine powder in the coarse powder that is not screened clean falls into the fine powder channel 26 from the mesh hole opened at the bottom surface of the coarse powder collecting box 27, so as to realize finer screening, then the coarse powder is discharged from the discharge port 28 for further processing, the device screens the powder in multiple layers without affecting the feeding efficiency, improves the screening precision and processing efficiency, and is more convenient for collecting the screened coarse powder, improves the work efficiency of the workers.

[0029] Please refer to Figures 5-6On the basis of the above embodiment, in another embodiment of the present application, the oxygen removal device 3 includes a nitrogen filling structure and a uniform contact structure, the nitrogen filling structure includes a nitrogen generator 31, a nozzle 32, a second rotating shaft 33, and a turbine 34, the nitrogen generator 31 is fixedly connected to the bottom of the support 6, the nozzle 32 is fixedly connected above the nitrogen generator 31, the second rotating shaft 33 is rotatably penetrated into the middle of the storage tank 1, and the turbine 34 is fixedly connected to the bottom end of the second rotating shaft 33; the nitrogen generator 31 injects nitrogen into the nozzle 32, the nozzle 32 sprays the nitrogen into the plenum chamber 35, and then the nitrogen enters the gas outlet net cylinder through the plenum chamber 35; at this time, the motor drives the second rotating shaft 33 to rotate, the second rotating shaft 33 drives the turbine 34 to rotate, and the nitrogen blowing upwards contacts the turbine 34 to form a vortex and disperse to the surrounding, when part of the nitrogen rises to the upper part of the gas outlet net cylinder 36, it is also stirred by the stirring paddle and flows to the surrounding, thereby rapidly filling the inside of the storage tank 1 and removing oxygen in the inside of the storage tank 1, preventing the powder from being oxidized due to contact with oxygen during storage; the uniform contact structure includes the plenum chamber 35, the gas outlet net cylinder 36, the stirring plate 37, the air cavity 38, and the pressure piston 39, the plenum chamber 35 is fixedly connected to the bottom of the storage tank 1, the gas outlet net cylinder 36 is fixedly connected above the plenum chamber 35, the stirring plate 37 is fixedly connected to the surface of the second rotating shaft 33, the air cavity 38 is fixedly connected above the plenum chamber 35, and the pressure piston 39 is slidably connected to the inside of the air cavity 38; the nitrogen generator 31 is fixedly connected to the bottom surface of the storage tank 1, the nozzle 32 is penetrated to the bottom of the storage tank 1, and the bottom end of the pressure piston 39 is fixedly connected with a spring which is fixedly connected to the inside of the air cavity 38; by arranging the gas outlet net cylinder 36 in the inside of the storage tank 1, the contact area between the nitrogen and the powder in the inside of the storage tank 1 is increased, and the oxygen removal efficiency is higher; when the nitrogen enters the plenum chamber 35, because the piston blocks the outlet of the air cavity 38, the pressure of the nitrogen is not enough to enter the air cavity 38 from the plenum chamber 35 and then enter the gas outlet net cylinder 36; when the front nitrogen stays in the plenum chamber 35, it is pressed by the continuously injected nitrogen behind, the pressure of the nitrogen is increased to push open the piston and enter the gas outlet net cylinder 36; the air pressure in the inside of the gas outlet net cylinder 36 is higher than that outside, the nitrogen disperses outward more quickly, thereby removing oxygen more quickly, and the oxygen removal efficiency is further improved;

[0030] Working principle: nitrogen generator 31 injects nitrogen into the nozzle 32, the nozzle 32 sprays nitrogen into the plenum 35, and then enters the gas net cylinder through the plenum 35, at this time the motor drives the second shaft 33 to rotate, the second shaft 33 drives the turbine 34 to rotate, the nitrogen is blown upward and contacts the turbine 34 to form a vortex and disperse to the surrounding, when part of the nitrogen rises to the upper part of the gas net cylinder 36, it will also be stirred by the stirring paddle and flow to the surrounding, thereby quickly filling the inside of the storage tank 1, oxygen is removed from the inside of the storage tank 1, preventing the powder from being in contact with oxygen during storage, leading to oxidation, by setting the gas net cylinder 36 in the storage tank 1, the contact area between nitrogen and the powder in the storage tank 1 is increased, and the oxygen removal efficiency is higher, when the nitrogen enters the plenum 35, because the piston blocks the outlet of the air chamber 38, the pressure of the nitrogen is not enough to enter the air chamber 38 from the plenum 35 and then enter the gas net cylinder 36, when the front nitrogen stays in the plenum 35, it is pressed by the continuously injected nitrogen behind, the nitrogen pressure is increased, and the piston is opened to enter the gas net cylinder 36, the gas pressure inside the gas net cylinder 36 is higher than the outside, and the nitrogen will disperse outward faster, thereby removing oxygen faster and further improving the oxygen removal efficiency.

[0031] Please refer to Figures 7-9On the basis of the above embodiment, in another embodiment of the present application, the anti-caking device 4 is provided, which comprises a stirring structure and a vibrating structure. The stirring structure comprises a third rotating shaft 41, a stirring impeller 42 and a guide plate 43. The third rotating shaft 41 is rotatably connected to the bottom end inside the storage tank 1. The stirring impeller 42 is fixedly connected to the surface of the third rotating shaft 41. The guide plate 43 is fixedly connected to the surface of the air outlet mesh cylinder 36. When the nitrogen gas is blown out from the air outlet mesh cylinder 36, it is guided by the guide plate 43 to blow outward at an oblique angle and generate a pushing force when blowing on the blades of the stirring impeller 42, so that the stirring impeller 42 rotates to stir the powder in the storage tank 1, preventing the powder from clumping and affecting the processing quality. The vibrating structure comprises a vibrating plate 44, a knocking block 45, an elastic piece 46 and a struck block 47. The vibrating plate 44 is slidably connected to the bottom of the storage tank 1. The knocking block 45 is fixedly connected to the bottom end of the third rotating shaft 41. The elastic piece 46 is fixedly connected below the vibrating plate 44. The struck block 47 is fixedly connected to one side of the elastic piece 46. The third rotating shaft 41 penetrates through the bottom surface of the vibrating plate 44. An arc-shaped groove is formed in the inner side of the vibrating plate 44, and the booster chamber 35 is slidably connected to the arc-shaped groove. The vibrating plate 44 is provided with a dehumidifying device 5 outside. The stirring impeller 42 drives the third rotating shaft 41 to rotate. The third rotating shaft 41 drives the knocking block 45 to rotate. The knocking block 45 knocks the struck block 47 once in a revolution. The struck block 47 is pressed against the elastic piece 46 after being knocked. The elastic piece 46 is folded after being pressed. The elastic piece 46 is opened and restored due to the elastic effect. The elastic piece 46 drives the struck block 47 to reset. The struck block 47 resets instantaneously to generate vibration, which drives the vibrating plate 44 to vibrate. The vibrating plate 44 vibrates to make the powder jump. The jumping powder is further dispersed and is more difficult to clump. The position of the jumping powder is replaced, so that all the powder can be stirred to make the dispersion more uniform, avoiding local clumping of the powder and further improving the processing quality. The dehumidifying device 5 comprises a dehumidifying structure and a moisture removal structure. The dehumidifying structure comprises a drying box 51, a top cover 52 and a sliding cover 53. The drying box 51 is fixedly connected to the top of the storage tank 1. The top cover 52 is fixedly connected above the drying box 51. The sliding cover 53 is slidably connected to the inner side of the top cover 52. The sliding cover 53 is slid to open the drying box 51. Dry agent is placed in the drying box 51. The dry agent contacts the air inside the storage tank 1 through the mesh holes formed in the bottom surface of the drying box 51 to dehumidify, preventing the powder from being dampened to cause inconvenience in processing. The moisture removal structure comprises an air vent 54, an inner mesh surface 55, an outer sleeve 56 and a moisture removal pipe 57. The air vent 54 is formed in the bottom of the drying box 51. The inner mesh surface 55 is formed on the surface of the storage tank 1. The outer sleeve 56 is fixedly connected to the outside of the inner mesh surface 55. The moisture removal pipe 57 is fixedly connected to the bottom surface of the outer sleeve 56. The drying box 51 is fixedly connected to the top end of the air outlet mesh cylinder 36. The second rotating shaft 33 is provided with a motor, and the motor is fixedly connected to the top surface of the top cover 52. The outer sleeve 56 is fixedly connected to the surfaces of the upper and lower ends of the storage tank 1. The first rotating shaft 21 is rotatably connected to the top end of the outer sleeve 56. The fine material passage 26 penetrates into the inside of the outer sleeve 56.Nitrogen gas enters the drying box 51 through the vent 54 and comes into contact with the desiccant. The flow of nitrogen gas causes the desiccant to disperse more quickly, improving its dehumidification efficiency. The nitrogen and desiccant mix together, compressing the air in the storage tank 1. This forces moisture adhering to the air through the inner mesh surface 55 into the outer sleeve 56, achieving rapid dry-wet separation. After entering the outer sleeve 56, the nitrogen gas initially occupies the upper half, where its higher density compresses and condenses downwards, eventually exiting through the exhaust pipe 57. The storage tank 1 remains completely dry, ensuring the powder is stored in a dry environment for convenient subsequent processing.

[0032] Working principle: When nitrogen gas is blown out from the outlet screen 36, it is guided by the guide plate 43 and blown outward at an angle. When it hits the blades on the agitator impeller 42, it generates a driving force, causing the agitator impeller 42 to rotate. The rotation of the agitator impeller 42 stirs the powder in the storage tank 1, preventing the powder from agglomerating and affecting the processing quality. The rotation of the agitator impeller 42 drives the third rotating shaft 41 to rotate, which in turn drives the striking block 45 to rotate. The striking block 45 strikes the receiving block 47 once for each rotation. The receiving block 47 is subjected to... After being struck, the spring sheet 46 is squeezed and folded. The elasticity causes the spring sheet 46 to open and return to its original position. The return of the spring sheet 46 causes the impact block 47 to reset. The impact block 47 vibrates at the moment of reset, which drives the vibrating plate 44 to vibrate. The vibration of the vibrating plate 44 causes the powder to jump. The jumping of the powder further disperses it and makes it less likely to clump. Moreover, the position of the powder is changed during the jumping, so that all the powder can be stirred, making the dispersion more uniform, avoiding local clumping of the powder, and further improving the processing quality.

[0033] Slide the sliding cover 53 to open the drying box 51 and place the desiccant into it. The desiccant comes into contact with the air inside the storage tank 1 through the mesh opening on the bottom surface of the drying box 51 to dehumidify, preventing the powder from getting damp and causing processing difficulties. Nitrogen enters the drying box 51 through the vent 54 and comes into contact with the desiccant. The flow of nitrogen makes the desiccant disperse more quickly, improving the dehumidification efficiency of the desiccant. The nitrogen and desiccant are mixed together to compress the air in the storage tank 1, causing the moisture attached to the air to be squeezed into the outer sleeve 56 through the inner mesh surface 55, thereby quickly achieving dry and wet separation. After entering the outer sleeve 56, the nitrogen first occupies the upper half of the outer sleeve. The moisture density is relatively high, so it is compressed and condensed downwards, and finally discharged from the exhaust pipe 57. The storage tank 1 is completely dry, so the powder is stored in a dry environment, which is convenient for subsequent processing.

[0034] It is to be noted that, in the present text, relational terms such as first and second and the like can be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises", "comprising", or any other variations thereof, are intended to cover a non-exclusive inclusion such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can include other elements not expressly listed or inherent to such process, method, article, or apparatus.

[0035] Finally, it should be noted that the above-mentioned only constitutes the preferred embodiments of the present application and is not intended to limit the present application. Although the present application has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications, equivalent replacements, and improvements of the technical solutions described in the foregoing embodiments can be made. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present application shall fall within the scope of the present application.

Claims

1. A powder storage device for powder metallurgy, comprising a storage tank (1) and a support (6), characterized in that: It also includes screening device (2) and dehumidification device (5), the screening device (2) includes screening structure and recovery structure; The screening structure includes a first rotating shaft (21), a synchronous belt (22), a conical feeding roller (23), and a feeding box (24), the first rotating shaft (21) is arranged above the storage tank (1), the synchronous belt (22) is drivingly connected to the right end of the first rotating shaft (21), the conical feeding roller (23) is fixedly connected to the surface of the first rotating shaft (21), and the feeding box (24) is sleeved outside the conical feeding roller (23); The recovery structure includes a partition (25), a fine material channel (26), a coarse material collecting box (27), and a discharge port (28), the partition (25) is fixedly connected to the inner side of the feeding box (24), the fine material channel (26) is fixedly connected below the feeding box (24), the coarse material collecting box (27) is fixedly connected below the feeding box (24), and the discharge port (28) is fixedly connected to the rear side of the coarse material collecting box (27); The fine material channel (26) is fixedly connected to the top of the support (6), the storage tank (1) is fixedly connected to the bottom of the support (6), the first rotating shaft (21) is mirror-imaged arranged along the transverse central axis of the feeding box (24), a motor is arranged on the right side of the first rotating shaft (21), the coarse material collecting box (27) is embedded in the upper left corner of the fine material channel (26), the bottom surface of the coarse material collecting box (27) is provided with mesh holes, and the fine material channel (26) is fixedly connected to the right side of the storage tank (1).

2. A powder storage apparatus for powder metallurgy according to claim 1, characterized in that: An oxygen removal device (3) is arranged on the left side of the fine material channel (26), the oxygen removal device (3) includes a nitrogen charging structure and a uniform contact structure, the nitrogen charging structure includes a nitrogen generator (31), a nozzle (32), a second rotating shaft (33), and a turbine (34), the nitrogen generator (31) is fixedly connected to the bottom of the support (6), the nozzle (32) is fixedly connected above the nitrogen generator (31), the second rotating shaft (33) is rotatably penetrated into the middle part of the storage tank (1), and the turbine (34) is fixedly connected to the bottom end of the second rotating shaft (33); the uniform contact structure includes a booster cavity (35), an air outlet mesh cylinder (36), an agitating plate (37), an air cavity (38), and a pressure piston (39), the booster cavity (35) is fixedly connected to the bottom of the storage tank (1), the air outlet mesh cylinder (36) is fixedly connected above the booster cavity (35), the agitating plate (37) is fixedly connected to the surface of the second rotating shaft (33), the air cavity (38) is fixedly connected above the booster cavity (35), and the pressure piston (39) is slidingly connected to the inner side of the air cavity (38); The nitrogen generator (31) is fixedly connected to the bottom surface of the storage tank (1), the nozzle (32) is penetrated into the bottom part of the storage tank (1), and the bottom end of the pressure piston (39) is fixedly connected with a spring, and the spring is fixedly connected to the inner side of the air cavity (38).

3. A powder storage apparatus for powder metallurgy according to claim 2, characterized in that: The dehumidification device (5) includes a dehumidification structure and a moisture discharge structure, the dehumidification structure includes a drying box (51), a top cover (52) and a sliding cover (53), the drying box (51) is fixedly connected to the top of the storage tank (1), the top cover (52) is fixedly connected above the drying box (51), and the sliding cover (53) is slidingly connected to the inner side of the top cover (52); the moisture discharge structure includes a ventilation hole (54), an inner mesh surface (55), an outer sleeve (56) and a moisture discharge pipe (57), the ventilation hole (54) is arranged at the bottom of the drying box (51), the inner mesh surface (55) is arranged on the surface of the storage tank (1), the outer sleeve (56) is fixedly connected to the outside of the inner mesh surface (55), and the moisture discharge pipe (57) is fixedly connected to the bottom surface of the outer sleeve (56).

4. A powder storage apparatus for powder metallurgy according to claim 3, characterized in that: The drying box (51) is fixedly connected to the top end of the air outlet mesh cylinder (36), the top end of the second rotating shaft (33) is provided with a motor, the motor is fixedly connected to the top surface of the top cover (52), the outer sleeve (56) is fixedly connected to the upper and lower end surfaces of the storage tank (1), the first rotating shaft (21) is rotatably connected to the top end of the outer sleeve (56), and the fine material channel (26) penetrates into the inside of the outer sleeve (56).

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