Efficient powder production line

Abstract

The utility model discloses an efficient powder production line which comprises a smashing device, the smashing device comprises a smashing shell, a smashing mechanism is arranged on the lower portion of the smashing shell, a coarse powder discharging port is formed in the lower end of an efficient grader, the efficient grader comprises a grader shell, and a grader feeding port is formed in the upper end of the grader shell. An inner cylinder is arranged on the lower portion of the grader shell, a grading wheel is rotationally installed in the grader shell, a sealing mechanism is arranged between the lower end of the grading wheel and an opening in the upper end of the inner cylinder, and gaps are formed between the inner cylinder and the grader shell and between the grading wheel and the grader shell. The classifier shell is provided with an air inlet mechanism right opposite to the outer circumferential face of the classification wheel, and a partition plate is arranged in the inner barrel. And the production of powder with highly concentrated particle size groups can be realized by adopting a series connection process of the mechanical crusher and the high-efficiency grader. The efficient classifier adopts an upper feeding and lower discharging mode, the production process of material particles is smoother under the action of gravity, and the throughput capacity is effectively improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a kind of powder production line. BACKGROUND

[0002] In traditional powder production process, there are many problems and deficiencies. First, the control of powder particle size is often not accurate enough, and most processes are difficult to achieve high concentration of particle size group. Usually in the production process, it is easy to produce wide particle size distribution, which contains a large number of coarse particles larger than the target particle size group, and a large number of fine particles smaller than the target particle size group, which seriously affects the quality stability and consistency of the product, and cannot meet the needs of some high-end application fields with strict particle size requirements.

[0003] Traditional production line layout and equipment connection method have defects. Many production lines need to be equipped with large silos to store materials when connecting equipment, which not only occupies a large amount of valuable space and increases the cost of building a plant, but also causes blockage and accumulation of materials during the transfer process due to the presence of silos, affecting production efficiency and continuity, and also making the equipment cost of the entire production line high. In addition, the material handling method of traditional equipment may not fully utilize the effect of gravity, resulting in poor flowability of material particles, limiting the throughput of the production line and making it difficult to achieve large-scale and efficient production. SUMMARY

[0004] To make up for the above deficiencies, the utility model provides an efficient powder production line that can effectively achieve accurate control of powder particle size and ensure high concentration of particle size group and uniform particle size distribution.

[0005] The technical scheme of the utility model is: an efficient powder production line, comprising a crushing device, the crushing device comprises a crushing shell, the lower part of the crushing shell is provided with a crushing mechanism, the upper part of the crushing shell is provided with a classification mechanism, the fine particle outlet of the classification mechanism is connected with an efficient classifier, the fine powder outlet of the efficient classifier is connected with a dust collection device, the lower end of the efficient classifier is provided with a coarse powder discharge port, the efficient classifier comprises a classifier shell, the upper end of the classifier shell is provided with a classifier feed inlet connected with the fine particle outlet of the classification mechanism, the lower part of the classifier shell is provided with an inner cylinder, a classification wheel is rotatably installed in the classifier shell, a sealing mechanism is arranged between the lower end of the classification wheel and the upper end opening of the inner cylinder, the classification wheel is located below the classifier feed inlet, gaps are arranged between the inner cylinder and the classifier shell and between the classification wheel and the classifier shell, an air inlet mechanism is arranged on the classifier shell and faces the outer circumferential surface of the classification wheel, a partition plate is arranged in the inner cylinder, the partition plate divides the inner cavity of the inner cylinder into an upper discharge chamber and a lower mounting chamber, the discharge chamber is connected with the fine powder outlet, and the gap is communicated with the coarse powder discharge port.

[0006] As a preferred technical scheme, the fine particle outlet of the grading mechanism is connected to a cyclone collector, a lower end discharge port of the cyclone collector is connected to a pneumatic conveyor, a first air locking discharge valve is arranged between the pneumatic conveyor and the cyclone collector, a discharge port of the pneumatic conveyor is connected to a hopper, a discharge port of the hopper is connected to a grading machine feed inlet of the high-efficiency grading machine, and a discharge valve is arranged between the high-efficiency grading machine and the hopper.

[0007] As a preferred technical scheme, a lower end of the inner cylinder body is fixedly installed with a lower baffle, a rotating shaft sleeve is fixedly installed in the inner cylinder body, a grading wheel rotating shaft is rotatably installed in the rotating shaft sleeve, the grading wheel is fixedly installed on the grading wheel rotating shaft, a lower end of the rotating shaft sleeve is detachably fixedly installed on the lower baffle, the partition plate is provided with a through hole for the rotating shaft sleeve to pass through, an outer periphery of the rotating shaft sleeve is provided with external threads, the external threads are screwed with a support nut, and a lower end surface of the support nut abuts against an upper surface of the partition plate.

[0008] As a preferred technical scheme, a rotating shaft sealing mechanism is arranged between an upper end of the rotating shaft sleeve and the grading wheel rotating shaft, the rotating shaft sealing mechanism comprises a sealing ring sleeved on the grading wheel rotating shaft, the sealing ring is provided with a mounting through hole for the grading wheel rotating shaft to pass through, the lower end of the rotating shaft sleeve is detachably fixedly installed with the sealing ring, the mounting through hole is a stepped hole, the large hole of the stepped hole is on the upper end, a sealing ring is sleeved in the large hole of the stepped hole, and a pressing ring that presses the sealing ring is detachably fixedly installed on the sealing ring.

[0009] As a preferred technical scheme, the grading wheel comprises an upper disc body and a lower annular body, grading vanes are arranged between the upper disc body and the lower annular body, a material throwing disc is further fixedly installed on an upper surface of the upper disc body, and the material throwing disc faces the grading machine feed inlet.

[0010] As a preferred technical scheme, the sealing mechanism comprises a mounting groove arranged at an upper end of the inner cylinder body, a lower annular seat is detachably fixedly installed on the mounting groove, an upper surface of the lower annular seat is provided with a plurality of annular sealing grooves, an annular sealing protrusion that cooperates with the annular sealing grooves is arranged on a lower end surface of the lower annular body, a sealing gap is arranged between the annular sealing protrusion and the annular sealing grooves, a ventilation hole that communicates with the sealing gap and the mounting groove is arranged on the lower annular seat, a ventilation pipe that communicates with the mounting groove is fixedly installed on the grading machine shell, and the ventilation pipe is connected with an air filter.

[0011] As a preferred technical scheme, the air inlet mechanism comprises an air inlet opening on the classifier shell body and surrounding the classification wheel, a plurality of air deflectors are installed on the air inlet opening at intervals, the gap between the outer ends of adjacent air deflectors is greater than the gap between the inner ends, the air inlet mechanism further comprises an annular air inlet shell body surrounding the air inlet opening, the inner cavity of the annular air inlet shell body and the air inlet opening are in communication with each other, the annular air inlet shell body is provided with a shell air inlet opening, an air inlet pipe is installed on the shell air inlet opening, the axis of the air inlet pipe is along the tangential direction of the annular air inlet shell body, and the cross-sectional area of the inner cavity of the annular air inlet shell body decreases in the clockwise or counterclockwise direction from the shell air inlet opening.

[0012] As a preferred technical scheme, the classifier shell body is provided with a classification wheel shaft driving mechanism for driving the rotation of the classification wheel shaft, the classification wheel shaft driving mechanism comprises a mounting seat fixedly installed on the classifier shell body, a swing plate is hingedly connected to the left end of the mounting seat, a distance adjusting mechanism is arranged between the swing plate and the right end of the mounting seat, the distance adjusting mechanism comprises a swing rod hingedly connected to the right end of the mounting seat, the swing rod is provided with external threads, the swing plate is provided with an adjusting through hole in gap cooperation with the swing rod, the swing rod passes through the adjusting through hole, and the swing rod is screwed with a first nut and a second nut located on both sides of the swing plate; the swing plate is fixedly installed with a classification wheel shaft driving motor.

[0013] As a preferred technical scheme, the classifier shell body is provided with a classification wheel shaft driving mechanism for driving the rotation of the classification wheel shaft, the classification wheel shaft driving mechanism comprises a mounting seat fixedly installed on the classifier shell body, a swing plate is hingedly connected to the left end of the mounting seat, a distance adjusting mechanism is arranged between the swing plate and the right end of the mounting seat, the distance adjusting mechanism comprises a swing rod hingedly connected to the right end of the mounting seat, the swing rod is provided with external threads, the swing plate is provided with an adjusting through hole in gap cooperation with the swing rod, the swing rod passes through the adjusting through hole, and the swing rod is screwed with a first nut and a second nut located on both sides of the swing plate; the swing plate is fixedly installed with a classification wheel shaft driving motor.

[0014] As a preferred technical scheme, the classifier shell body is further fixedly installed with a bulk ring above the air inlet opening.

[0015] Due to the adoption of the above technical solution, a high-efficiency powder production line includes a crushing device. The crushing device includes a crushing shell, a crushing mechanism at the lower part of the crushing shell, and a grading mechanism at the upper part of the crushing shell. A high-efficiency classifier is connected to the fine particle outlet of the grading mechanism, and a dust collector is connected to the fine powder outlet of the high-efficiency classifier. A coarse powder outlet is provided at the lower end of the high-efficiency classifier. The high-efficiency classifier includes a classifier shell, a classifier inlet at the upper end of the classifier shell connected to the fine particle outlet of the grading mechanism, and an inner cylinder at the lower part of the classifier shell. A classifying wheel is rotatably mounted inside the classifier housing. A sealing mechanism is provided between the lower end of the classifying wheel and the upper opening of the inner cylinder. The classifying wheel is located below the classifier's feed inlet. Gaps are provided between the inner cylinder and the classifier housing, as well as between the classifying wheel and the classifier housing. An air inlet mechanism is provided on the classifier housing facing the outer circumference of the classifying wheel. A partition is provided inside the inner cylinder, dividing the inner cavity into an upper discharge chamber and a lower installation chamber. The discharge chamber is connected to the fine powder outlet, and the gap communicates with the coarse powder outlet. The series connection of a mechanical pulverizer and a high-efficiency classifier enables the production of powders requiring highly concentrated particle sizes. The high-efficiency classifier utilizes a top-feed, bottom-discharge method, allowing for smoother material particle production under gravity, effectively increasing throughput. Furthermore, it effectively reduces the material hopper size, saves equipment installation space, and lowers equipment costs. Attached Figure Description

[0016] Figure 1 This is a structural schematic diagram of an embodiment of the present utility model;

[0017] Figure 2 This is a schematic diagram of the structure of the high-efficiency classifier in this embodiment of the utility model;

[0018] Figure 3 yes Figure 2 Sectional view along line AA in the middle;

[0019] Figure 4 yes Figure 2 A magnified view of a section at point I;

[0020] Figure 5 yes Figure 4 Enlarged view of a section at point II;

[0021] Figure 6 This is a schematic diagram of the structure of the grading wheel in an embodiment of this utility model;

[0022] Figure 7 yes Figure 2 A magnified view of a section at point III;

[0023] Figure 8 is a structural schematic view of the distance adjusting mechanism in the embodiment of the utility model. DETAILED DESCRIPTION

[0024] As Figure 1 , Figure 2 shown, an efficient powder production line, including the crushing device 1, the crushing device 1 including the crushing shell, the lower part of the crushing shell is equipped with the crushing mechanism, the upper part of the crushing shell is equipped with the classification mechanism, the fine particle outlet of the classification mechanism is connected with the high-efficiency classifier 2, the fine powder outlet 3 of the high-efficiency classifier 2 is connected with the dust collection collector 4, the lower end of the high-efficiency classifier is equipped with the coarse powder discharge port 5, the high-efficiency classifier includes the classifier shell 6, the upper end of the classifier shell 6 is equipped with the classifier feed inlet 7 connected with the fine particle outlet of the classification mechanism, the lower part of the classifier shell 5 is equipped with the inner cylinder 8, the classifier wheel 9 is rotatably installed in the classifier shell 5, the lower end of the classifier wheel 9 and the upper end opening of the inner cylinder 8 are equipped with sealing mechanism, the classifier wheel 9 is below the classifier feed inlet 7, the gap 10 is equipped between the inner cylinder 8 and the classifier shell 6 and between the classifier wheel 9 and the classifier shell 6, the air inlet mechanism opposite the outer circumferential surface of the classifier wheel 9 is arranged on the classifier shell 6, the inner cylinder 8 is equipped with the partition plate 11, the partition plate 11 divides the inner cavity of the inner cylinder into the discharge cavity 12 located at the upper part and the mounting cavity 13 located at the lower part, the discharge cavity 12 is connected with the fine powder outlet 3, the gap 10 is communicated with the coarse powder discharge port 5. The series process of the mechanical crusher and the high-efficiency classifier can realize the production of the powder with the highly concentrated particle size group. The high-efficiency classifier uses the feeding from the upper part and discharging from the lower part, the material particles produce the process more smoothly under the action of gravity, effectively improves the throughput, and effectively reduces the silo, saves the equipment installation space and reduces the equipment cost. The crushing device can adopt the prior art, for example, the scheme disclosed in CN202111051078.2.

[0025] As Figure 1 shown, the fine particle outlet of the classification mechanism is connected to the cyclone collector 44, the lower end discharge port of the cyclone collector 44 is connected with the pneumatic conveyor 14, the first air locking discharge valve 15 is arranged between the pneumatic conveyor 14 and the cyclone collector 44, the discharge port of the pneumatic conveyor 14 is connected with the hopper 16, the discharge port of the hopper 16 is connected with the classifier feed inlet 7 of the high-efficiency classifier, the discharge valve 17 is also arranged between the high-efficiency classifier 2 and the hopper 16.

[0026] As Figure 2As shown, the lower end of the inner cylinder 8 is fixedly installed with a lower baffle 18, and a rotating shaft sleeve 19 is fixedly installed in the inner cylinder 8, a stepped wheel rotating shaft 20 is rotatably installed in the rotating shaft sleeve 19, the stepped wheel 9 is fixedly installed on the stepped wheel rotating shaft 20, the lower end of the rotating shaft sleeve 19 is detachably fixedly installed on the lower baffle 18, the partition plate 11 is provided with a through hole for the rotating shaft sleeve 19 to pass through, the outer periphery of the rotating shaft sleeve 19 is provided with external threads, and a support nut 45 is screwed on the external threads, and the lower end surface of the support nut 45 abuts against the upper surface of the partition plate 11.

[0027] As shown in Figure 2 and Figure 7 As shown, a rotating shaft sealing mechanism is arranged between the upper end of the rotating shaft sleeve 19 and the stepped wheel rotating shaft 20, the rotating shaft sealing mechanism comprises a sealing ring 21 sleeved on the stepped wheel rotating shaft 20, the sealing ring 21 is provided with a mounting through hole for the stepped wheel rotating shaft 20 to pass through, the lower end of the sealing ring 21 is detachably fixedly installed with the rotating shaft sleeve 19, the mounting through hole is a stepped hole, the large hole of the stepped hole is on the upper end, a sealing ring 22 is sleeved in the large hole of the stepped hole, and a pressing ring 23 for pressing the sealing ring 22 is detachably fixedly installed on the sealing ring 21. The rotating shaft sealing mechanism ensures the sealing effect and avoids the entry of particles between the rotating shaft sleeve and the stepped wheel rotating shaft.

[0028] As shown in Figure 6 As shown, the stepped wheel 9 comprises an upper disc body 39 and a lower annular body 40, a stepped blade 41 is arranged between the upper disc body 39 and the lower annular body 40, and a material throwing disc 42 is further fixedly installed on the upper surface of the upper disc body 39, and the material throwing disc 42 faces the material inlet 7 of the classifier.

[0029] As shown in Figure 2 , Figure 4 and Figure 5 As shown, the sealing mechanism comprises a mounting groove 46 arranged at the upper end of the inner cylinder 8, a lower annular seat 24 is detachably fixedly installed on the mounting groove 46, the upper surface of the lower annular seat 24 is provided with a plurality of annular sealing grooves 25, the lower end surface of the lower annular body 40 is provided with an annular sealing protrusion 26 matched with the annular sealing grooves 25, a sealing gap is arranged between the annular sealing protrusion 26 and the annular sealing grooves 25, the lower annular seat 24 is provided with a ventilation hole 47 in communication with the sealing gap and the mounting groove, a ventilation pipe 27 in communication with the mounting groove is fixedly installed on the classifier housing 6, and the ventilation pipe 27 is connected with an air filter 28. Under the action of the fan, external air enters the air filter, passes through the ventilation pipe 27 and enters the mounting groove 46. Through the ventilation hole 47, the airflow enters the sealing gap and is blown out from the sealing gap, so that the entry of particles is avoided.

[0030] AsFigure 2 and Figure 3 As shown, the air intake mechanism includes an air inlet 31 surrounding the classifier wheel 9, located on the classifier housing 6. Multiple guide plates 29 are spaced apart on the air inlet 31, with the gap between the outer ends of adjacent guide plates 29 being larger than the gap between their inner ends. The air intake mechanism also includes an annular air intake housing 30 surrounding the air inlet. The inner cavity of the annular air intake housing 30 is connected to the air inlet 31. The annular air intake housing 30 has a housing air inlet 32, on which an air inlet pipe 51 is installed. The axis of the air inlet pipe 51 is along the tangential direction of the annular air intake housing. The cross-sectional area of ​​the inner cavity of the annular air intake housing 30 decreases clockwise or counterclockwise from the housing air inlet 32. To maintain uniform airflow at all points of the air inlet, tangential vortex air intake is used, and the cross-sectional area of ​​the inner cavity of the annular air intake housing 30 decreases clockwise or counterclockwise from the housing air inlet 32. Therefore, as the airflow moves along the annular air inlet shell, the wind speed gradually increases, preventing attenuation. The negative pressure suction generated by the induced draft fan is evenly distributed circumferentially within the classification area through the air inlet, and the air force fully disperses the powder particles, thereby effectively improving the classification efficiency.

[0031] like Figure 8 As shown, a grading wheel shaft drive mechanism for driving the grading wheel shaft 20 to rotate is installed on the grading machine housing 6. The grading wheel shaft drive mechanism includes a mounting base 33 fixedly installed on the grading machine housing 6, a swing plate 34 hinged to the left end of the mounting base 33, and a distance adjustment mechanism between the swing plate 34 and the right end of the mounting base 33. The distance adjustment mechanism includes a swing rod 48 hinged to the right end of the mounting base 33, the swing rod 48 having external threads, and an adjustment through hole on the swing plate that is clearance-fitted with the swing rod. The swing rod passes through the adjustment through hole, and a first nut 35 and a second nut 36 located on both sides of the swing plate 34 are screwed onto the swing rod. A grading wheel shaft drive motor 50 is fixedly installed on the swing plate. A material distribution ring 43 located above the air inlet 31 is also fixedly installed on the grading machine housing 5. This allows adjustment of the angle and distance between the swing plate and the mounting base, thereby adjusting the position of the grading wheel shaft drive motor and ensuring the efficiency of the belt drive between the grading wheel shaft drive motor and the grading wheel shaft.

[0032] like Figure 1 As shown, it also includes a feeding mechanism for feeding the crushing device. The feeding mechanism includes a feeding hopper 37, and the lower end of the feeding hopper 37 is provided with a feeding port. The feeding port is directly opposite the belt conveyor 38, and the belt conveyor 38 feeds the crushing device 1 to the feed port.

[0033] The material is added from the classifier feed inlet 7, and falls on the material throwing disc 42 rotating synchronously with the classification wheel, the material throwing disc 42 rotates to throw the material to the bulk material ring 43, the fine particles adsorbed on the large particles are shaken and scattered, and the false particles are also shaken and scattered, the shaken and scattered material falls to the classification area of the classification wheel 9 by gravity, the fine powder particles are separated out by the classification wheel 9 under the action of the negative pressure force overcoming the centrifugal force generated by the rotation of the classification wheel, the fineness of the separated fine powder particles is adjustable, when the rotation speed of the classification wheel 9 is high and the centrifugal force is large, the resistance is large when the fine powder particles are carried by the negative pressure, only the finer particles with kinetic energy can pass through by overcoming the resistance. Therefore, the rotation speed of the classification wheel 9 is high, the classification particle size is fine, the rotation speed of the classification wheel 9 is low, and the classification particle size is coarse. The coarse powder falls under the action of gravity.

[0034] The basic principle, main features and advantages of the utility model are shown and described above. The utility model will have various changes and improvements without departing from the spirit and scope of the utility model, and these changes and improvements all fall within the scope of the utility model claimed. The protection scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. A high-efficiency powder production line, characterized by comprising: The application relates to a pulverizing device, which comprises a pulverizing shell, a pulverizing mechanism arranged at the lower part of the pulverizing shell, a grading mechanism arranged at the upper part of the pulverizing shell, a high-efficiency classifier connected with a fine particle outlet of the grading mechanism, a dust collecting device connected with a fine powder outlet of the high-efficiency classifier, a coarse powder outlet arranged at the lower end of the high-efficiency classifier, and a classifier shell of the high-efficiency classifier, wherein an upper end of the classifier shell is provided with a classifier inlet connected with the fine particle outlet of the grading mechanism, a lower part of the classifier shell is provided with an inner cylinder, a grading wheel is rotatably arranged in the classifier shell, a sealing mechanism is arranged between the lower end of the grading wheel and the upper end opening of the inner cylinder, the grading wheel is arranged below the classifier inlet, gaps are arranged between the inner cylinder and the classifier shell and between the grading wheel and the classifier shell, an air inlet mechanism is arranged on the classifier shell and faces the outer circumferential surface of the grading wheel, a partition plate is arranged in the inner cylinder, the partition plate divides the inner cavity of the inner cylinder into an upper discharging cavity and a lower mounting cavity, the discharging cavity is connected with the fine powder outlet, and the gaps are communicated with the coarse powder outlet.

2. The high-efficiency powder production line according to claim 1, wherein The fine particle outlet of the grading mechanism is connected to a cyclone collector, a lower end discharging outlet of the cyclone collector is connected to a pneumatic conveyor, a first air locking and discharging valve is arranged between the pneumatic conveyor and the cyclone collector, a discharging outlet of the pneumatic conveyor is connected to a hopper, a discharging outlet of the hopper is connected to the classifier inlet of the high-efficiency classifier, and a discharging valve is arranged between the high-efficiency classifier and the hopper.

3. The high-efficiency powder production line according to claim 2, wherein A lower baffle is fixedly arranged at the lower end of the inner cylinder, a rotating shaft sleeve is fixedly arranged in the inner cylinder, a grading wheel rotating shaft is rotatably arranged in the rotating shaft sleeve, the grading wheel is fixedly arranged on the grading wheel rotating shaft, the lower end of the rotating shaft sleeve is detachably fixedly arranged on the lower baffle, a through hole is arranged on the partition plate and passes through the rotating shaft sleeve, an outer thread is arranged on the outer circumferential surface of the rotating shaft sleeve, a support nut is screwed on the outer thread, and the lower end surface of the support nut abuts against the upper surface of the partition plate.

4. The high-efficiency powder production line according to claim 3, wherein A rotating shaft sealing mechanism is arranged between the upper end of the rotating shaft sleeve and the grading wheel rotating shaft, the rotating shaft sealing mechanism comprises a sealing ring sleeved on the grading wheel rotating shaft, the sealing ring is provided with a mounting through hole for the grading wheel rotating shaft to pass through, the lower end of the sealing ring is detachably fixedly arranged with the rotating shaft sleeve, the mounting through hole is a stepped hole, the large hole of the stepped hole is arranged at the upper end, a sealing ring is sleeved in the large hole of the stepped hole, and a pressing ring for pressing the sealing ring is detachably fixedly arranged on the sealing ring.

5. The high-efficiency powder production line according to claim 4, wherein The grading wheel comprises an upper disc body and a lower annular body, grading blades are arranged between the upper disc body and the lower annular body, a discharging disc is further fixedly arranged on the upper surface of the upper disc body, and the discharging disc faces the classifier inlet.

6. The high-efficiency powder production line according to claim 5, wherein The sealing mechanism comprises a mounting groove arranged at the upper end of the inner cylinder, a lower annular seat fixedly mounted on the mounting groove, a plurality of annular sealing grooves arranged on the upper surface of the lower annular seat, an annular sealing protrusion arranged on the lower end surface of the lower annular body and matched with the annular sealing grooves, a sealing gap arranged between the annular sealing protrusion and the annular sealing grooves, a ventilation hole arranged on the lower annular seat and communicated with the sealing gap and the mounting groove, a ventilation pipe fixedly mounted on the classifier shell and communicated with the mounting groove, and an air filter connected to the ventilation pipe.

7. The high-efficiency powder production line according to claim 1, wherein The air inlet mechanism comprises an air inlet opening arranged on the classifier shell and surrounding the classification wheel, a plurality of air deflectors spacedly mounted on the air inlet opening, a gap between the outer ends of adjacent air deflectors being larger than a gap between the inner ends of the adjacent air deflectors, an annular air inlet shell surrounding the air inlet opening, an inner cavity of the annular air inlet shell being communicated with the air inlet opening, a shell air inlet arranged on the annular air inlet shell, an air inlet pipe mounted on the shell air inlet, an axis of the air inlet pipe being along a tangent direction of the annular air inlet shell, and a cross-sectional area of the inner cavity of the annular air inlet shell decreasing along a clockwise or counterclockwise direction from the shell air inlet.

8. The high-efficiency powder production line according to claim 1, wherein The classifier shell is provided with a classification wheel shaft driving mechanism for driving the classification wheel shaft to rotate, the classification wheel shaft driving mechanism comprises a mounting seat fixedly mounted on the classifier shell, a swing plate hingedly connected to the left end of the mounting seat, a distance adjusting mechanism arranged between the swing plate and the right end of the mounting seat, the distance adjusting mechanism comprises a swing rod hingedly connected to the right end of the mounting seat, an external thread arranged on the swing rod, an adjusting through hole matched with the swing rod and arranged on the swing plate, the swing rod penetrating through the adjusting through hole, and a first nut and a second nut threadedly engaged with the swing rod on both sides of the swing plate; and a classification wheel shaft driving motor fixedly mounted on the swing plate.

9. The high-performance powder production line according to any one of claims 1 to 8, wherein The classifier shell is further provided with a feeding mechanism for feeding the crushing device, the feeding mechanism comprises a feeding bin, a feeding port arranged at the lower end of the feeding bin, and a belt conveyor facing the feeding port and feeding the feeding port of the crushing device.

10. The high-efficiency powder production line according to claim 7, wherein The classifier shell is further provided with a bulk ring arranged above the air inlet opening.

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