CN116493257A - Circulating air supply clear powder air flow classification device and use method thereof - Google Patents

Abstract

The invention provides a circulating air supply clear powder air flow classifying device and a using method thereof, and relates to the technical field of classifying equipment, wherein the device comprises a tank body and a classifying wheel unit, and the classifying wheel unit is arranged in the tank body; the uniform feeding unit is arranged in the tank body; the air supply unit supplies air to the tank body; the multistage separation unit, multistage separation unit carries out multistage air current to the powder and sorts, the classifying wheel unit includes: the rotating wheel is arranged in the tank body; and the blade assemblies are arranged on the rotating wheel in a plurality of groups. According to the invention, the gear f is driven to rotate by the rotary driving piece b to drive the toothed ring to rotate, so that the gear b is driven to rotate to drive the two groups of rotating rods to reversely rotate, so that the blades a are driven to rotate, the gap between two groups of adjacent blades a is regulated, the gap can be flexibly regulated according to the use requirement to classify the powder with different particle sizes, and the device is convenient to use.

Description

Circulating air supply clear powder air flow classification device and use method thereof

Technical Field

The invention relates to the technical field of grading equipment, in particular to a circulating air supply clear powder air flow grading device and a using method thereof.

Background

The air flow classifying device is a device for classifying solid powder particles, which is widely used at present, and mainly adopts the air flow of circulating air supply to push materials to a classifying area, a classifying wheel of the classifying area rotates under the drive of a motor to generate centrifugal force, fine powder enters the classifying wheel from a gap of a classifying wheel sheet and is sucked out from a fine powder outlet, coarse powder particles are thrown onto the side wall of the classifying area, and slide downwards to the bottom to be discharged from a coarse powder outlet.

Chinese patent application No. 202121764578.6 discloses an improved generation air classifier classifying vane wheel, including the impeller frame, fixed mounting has the blade on the impeller frame, install the impeller axle sleeve on the impeller frame, the blade distributes around the impeller axle sleeve, the width direction of blade be provided with contained angle alpha between the diameter direction of impeller axle sleeve, increased the deflection angle of blade like this for the blade clearance diminishes, under the circumstances that does not increase blade quantity and classifying vane wheel weight, has improved the classification precision of equipment.

Fine powder enters the inside from gaps among the blades, but in the technical scheme, the blades are inserted into the blade mounting grooves, so that the gaps among the blades cannot be adjusted, and therefore, the gaps among the blades cannot be flexibly adjusted according to use requirements to grade powder with different particle sizes, and the device is inconvenient to use.

Disclosure of Invention

The invention aims at overcoming the defects of the prior art, and provides a circulating air supply powder cleaning air flow classifying device which drives a gear f to rotate through a rotary driving piece b to drive a toothed ring to rotate, further drives the gear b to rotate, drives two groups of rotating rods to reversely rotate, further drives a blade a to rotate, adjusts the gap between two groups of adjacent blades a, can flexibly adjust the gap according to the use requirement to classify powder with different particle sizes, and is convenient for the use of the device.

In order to achieve the above purpose, the present invention provides the following technical solutions:

the circulating air supply and powder cleaning air flow classifying device comprises a tank body and a classifying wheel unit, wherein the classifying wheel unit is arranged in the tank body; the uniform feeding unit is arranged in the tank body; the air supply unit supplies air to the tank body; the multi-stage separation unit is used for carrying out multi-stage airflow separation on the powder;

further, the classifying wheel unit includes: the rotating wheel is arranged in the tank body; the blade assemblies are arranged on the rotating wheel; a fixed disk mounted on the blade assembly; and the driving assembly is used for driving the rotating wheel to rotate.

Preferably, the blade assembly comprises: the two groups of rotating rods are rotatably arranged on the rotating wheel; a blade a mounted on the rotating rod; the arc-shaped baffle plates are arranged on the outer sides of the two groups of rotating rods; the gear a is arranged at the bottom of the rotating rod, and the two groups of gears a are meshed; the gear b is arranged at the bottom of one rotating rod; a groove is formed in the rotating wheel; the toothed ring is rotationally arranged in the groove and meshed with the gear b; a rotary driving piece b mounted in the rotating wheel; and the gear f is arranged at the output end of the rotary driving piece b and meshed with the toothed ring.

Further, the even feeding unit includes: the funnel a is arranged on the tank body; the support shell is arranged in the tank body, and the support shell is connected with the fixed disc through a support plate; the pushing assembly is arranged on the supporting shell; the material pushing assembly is used for conveying the powder in the funnel a into the material uniformly-scattering assembly; the patting assembly is used for patting the powder and breaking the agglomerated powder particles, and the powder is uniformly sprayed into the space between the supporting shell and the supporting plate by the uniform spraying assembly.

Preferably, the pushing component comprises: a plurality of groups of inclined pipes are arranged on the funnel a; the conveying pipe is arranged on the inclined pipe; the L-shaped pushing plate is arranged in the conveying pipe in a sliding manner; the fixing seat is arranged on the supporting shell; the rotating shaft is rotationally arranged on the fixed seat, and an inclined ring groove is formed in the rotating shaft; the fixed sleeve is arranged on the supporting shell; the sliding sleeve is arranged in the fixed sleeve in a sliding manner, and a guide strip is arranged on the sliding sleeve; the sliding rod a is arranged in the sliding sleeve and slides in the inclined ring groove; and the driving part a drives the rotating shaft to rotate.

Further, the uniform spreading assembly comprises: the funnel b is arranged at one end of the conveying pipe and is communicated with the conveying pipe; the circular tube is arranged at the bottom of the funnel b; the material scattering pipes are arranged on the circular pipes, the material scattering pipes are positioned between the supporting shell and the supporting plate, and heating wires are arranged in the circular pipes and the material scattering pipes; the driving part b drives the circular tube to rotate;

preferably, the beating assembly comprises: the rotary rod is rotationally arranged below the circular tube; the plurality of groups of beating plates are arranged on the rotating rod, and the beating plates are positioned between the supporting shell and the supporting plate; and a driving part c for driving the rotating rod to rotate.

Further, the multi-stage sorting unit includes: the annular plate is arranged on the supporting shell; the material guide plate is arranged below the annular plate and is arranged on the supporting shell; the inclined plate is arranged below the material guide plate and is arranged on the supporting shell, and the circular plate, the material guide plate and the inclined plate correspond to the blade assembly in position;

preferably, the air supply unit includes: the convex shell is arranged on the tank body; the air inlet pipe is arranged at one side of the convex shell; the air blowing pipe a is arranged on the supporting shell and corresponds to the circular ring plate in position; and the air blowing pipe b is arranged on the supporting shell and corresponds to the inclined plate in position.

Further, the driving assembly includes: the connecting rod is arranged on the fixed disc; the fixed plate is arranged on the tank body; a rotation driving member a mounted on the fixing plate; and the transmission part is used for driving the connecting rod to rotate by the rotary driving piece a.

Preferably, the classifying wheel unit further comprises a particle cleaning assembly which removes particles trapped between the two sets of said blades a.

Further, the particle cleaning assembly includes: a motion driving member; the motion frame is arranged at the output end of the motion driving piece; the fixed ring is arranged on the moving frame, and a plurality of groups of circular grooves are formed in the fixed ring; the moving rod is arranged in the circular groove in a sliding manner; the extrusion rod is arranged on the motion rod; the rotating disc is rotationally arranged on the fixed ring, and a plurality of groups of sliding grooves are formed in the rotating disc; the sliding rod b is arranged on the moving rod and slides in the chute; and the driving part d drives the rotating disc to rotate.

The invention provides a use method of a circulating air supply clear powder air flow classification device, which comprises the following steps:

step one, blade adjusting procedure: the gear f is driven to rotate by the rotary driving piece b, the toothed ring f is driven to rotate, the gear b is driven to rotate, the two groups of rotating rods are driven to rotate reversely, the blades a are driven to rotate, gaps between two groups of adjacent blades a are regulated, the gaps can be flexibly regulated according to use requirements to classify powder with different particle sizes, and the device is convenient to use;

step two, a feeding procedure: adding powder into the funnel a, enabling the powder to enter the conveying pipe through the inclined pipe under the action of gravity, driving the rotating shaft to rotate through the driving part a, sliding the sliding rod a in the inclined annular groove to drive the sliding sleeve to slide back and forth in the moving groove, and pushing the powder in the conveying pipe back and forth into the funnel b;

step three, uniformly scattering materials: under the action of gravity, powder in the funnel b enters the circular tube, the circular tube is driven to rotate by the driving part b, the powder in the circular tube is uniformly thrown out through the material scattering tube under the action of the centrifugal force, and the thrown powder falls downwards in contact with the supporting shell and the supporting plate;

step four, a beating procedure: the driving part c drives the rotating rod to rotate and drives the beating plate to rotate so as to beat the falling powder, so that agglomerated powder particles are smashed, and the agglomeration of the powder particles is prevented from affecting air classification;

step five, airflow classification working procedure: high-speed air flow is introduced into the air inlet pipe, the high-speed air flow is blown out through the air blowing pipe a and the air blowing pipe b, powder particles smashed through the beating plate fall on the annular plate, and the air blowing pipe a blows the powder particles on the annular plate to the blade assembly;

powder meeting the particle requirements passes through gaps among the blades a, enters the inside of the classifying wheel unit, and is discharged through the discharging pipe b under the action of gravity;

powder which does not meet the particle requirements impacts the outer side of the blade assembly, and is discharged downwards through the material guide plate and the inclined plate and discharged through the material discharge pipe a under the action of gravity.

The invention has the beneficial effects that:

(1) According to the invention, the gear f is driven to rotate by the rotary driving piece b to drive the toothed ring to rotate, so that the gear b is driven to rotate to drive the two groups of rotating rods to reversely rotate, so that the blades a are driven to rotate, the gap between two groups of adjacent blades a is regulated, the gap can be flexibly regulated according to the use requirement to classify the powder with different particle sizes, and the device is convenient to use.

(2) According to the invention, the plurality of groups of the funnels b are arranged around the axis of the tank body at equal angles, so that powder in the funnels a uniformly flows into the funnels b, is uniformly thrown out through the material scattering pipe after passing through the circular pipe, and is beaten by the rotation of the beating plate, so that the powder is uniformly filled in the space between the supporting shell and the supporting plate, and uniformly falls on the outer side of the classification wheel unit under the action of gravity, and the air classification efficiency is improved.

(3) According to the invention, the heating wires are arranged in the round tube and the scattering tube, the heating wires are used for drying the powder, so that the moisture in the powder is removed, the subsequent classification is convenient, the driving part c drives the rotating rod to rotate, and drives the beating plate to rotate so as to beat the falling powder, so that the agglomerated powder particles are smashed, and the influence of the agglomeration of the powder particles on the airflow classification is prevented.

(4) According to the invention, powder particles on the annular plate are blown to the blade assembly through the air blowing pipe a for carrying out first air flow classification, the rest powder particles fall on the guide plate under the action of gravity and are continuously downwards transmitted to the inclined plate, the air blowing pipe b is used for blowing the powder particles on the inclined plate to the blade assembly for carrying out second air flow classification, and a plurality of groups of air blowing pipes b are correspondingly arranged by arranging the guide plate and the inclined plate at intervals, so that the powder particles are subjected to multiple air flow classification, and the air flow classification efficiency is greatly improved.

(5) According to the invention, the gear k is driven to rotate reversely by the rotary driving piece k, so that the motion rod is driven to move inwards along the circular groove; driving the extrusion rod to move from the point a to the point b, driving the moving frame to rotate, and driving the extrusion rod to move from the point b to the point c; the rotary driving piece k drives the gear k to rotate positively to drive the motion rod to move outwards along the circular groove, and drives the extrusion rod to move from the point c to the point d, so that particles clamped between the two groups of blades a are extruded, and the particles are cleaned.

Drawings

FIG. 1 is a schematic diagram of the overall structure of the present invention;

FIG. 2 is a schematic view of the structure of the classifying wheel unit according to the present invention;

FIG. 3 is a schematic cross-sectional view of a classifying wheel unit according to the present invention;

FIG. 4 is an enlarged schematic view of the invention at A in FIG. 3;

FIG. 5 is a schematic view of a vane assembly according to the present invention;

FIG. 6 is a schematic view of part structure of the uniform feeding unit of the present invention;

FIG. 7 is a schematic overall cross-sectional view of the present invention;

FIG. 8 is a schematic diagram of the structure of the pushing assembly and the uniform spreading assembly according to the present invention;

FIG. 9 is an exploded view of the pusher assembly of the present invention;

FIG. 10 is a schematic view of a sliding rod a according to the present invention;

FIG. 11 is a schematic view of a particle cleaning assembly of the present invention;

FIG. 12 is a schematic view of a portion of a component part of the particle cleaning assembly of the present invention;

FIG. 13 is a schematic view of the structure of the motion bar and extrusion bar of the present invention;

FIG. 14 is a schematic diagram of a multi-stage separation unit according to the present invention;

FIG. 15 is a schematic cross-sectional view of a rotatable wheel of the present invention;

FIG. 16 is an enlarged schematic view of the invention at B in FIG. 15;

FIG. 17 is a schematic view of the structure of the support plate of the present invention;

FIG. 18 is an enlarged schematic view of FIG. 17C in accordance with the present invention;

FIG. 19 is an enlarged schematic view of the invention at D in FIG. 7;

FIG. 20 is a schematic view of the motion profile of the extrusion rod of the present invention;

FIG. 21 is a schematic view of the structure of the driving part d of the present invention;

FIG. 22 is a schematic view of a particle cleaning assembly and blade assembly of the present invention.

Reference numerals

1. A tank body; 11. a fixing frame; 12. a convex shell; 13. a discharging pipe a; 14. a discharging pipe b; 2. a classifying wheel unit; 21. a rotating wheel; 211. a groove; 22. a blade assembly; 221. a rotating lever; 222. a blade a; 223. an arc baffle; 224. a gear a; 225. a gear b; 226. a toothed ring f; 227. a gear f; 228. a rotary driving member b; 23. a fixed plate; 24. a drive assembly; 241. a connecting rod; 242. a fixing plate; 243. a rotary driving member a; 244. a transmission part; 25. a particle cleaning assembly; 251. a motion driving member; 252. a motion frame; 253. a fixing ring; 2531. a circular groove; 254. a motion bar; 255. an extrusion rod; 256. a rotating disc; 2560. connecting sleeves; 25601. an avoidance groove; 2561. a chute; 257. a sliding rod b; 258. a driving section d; 2581. a rotary driving member k; 2582. a gear k; 2583. a toothed ring k; 3. a uniform feeding unit; 31. a funnel a; 32. a support case; 321. a support plate; 33. a pushing component; 331. an inclined tube; 332. a material conveying pipe; 333. an L-shaped push plate; 334. a fixing seat; 335. a rotating shaft; 3351. an oblique ring groove; 336. a fixed sleeve; 3361. a movement groove; 337. a sliding sleeve; 3371. a guide bar; 338. a sliding rod a; 339. a driving part a; 3391. a gear g; 3392. a toothed ring g; 34. a uniform spreading component; 341. a funnel b; 342. a round tube; 343. a material spreading pipe; 344. a driving unit b; 3441. a gear d; 3442. a toothed ring d; 35. beating the assembly; 351. a rotating rod; 352. beating the plate; 353. a driving unit c; 3531. a gear e; 3532. a toothed ring e; 4. an air supply unit; 41. an air inlet pipe; 42. a blowing pipe a; 43. a blowing pipe b; 5. a multi-stage sorting unit; 51. a circular plate; 52. a material guide plate; 53. and a sloping plate.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

Example 1

As shown in fig. 1-10, this embodiment provides a circulation air supply clear powder air current classification device, including a jar body 1, the bottom of jar body 1 is equipped with mount 11, still includes: the classifying wheel unit 2 is arranged in the tank body 1; the uniform feeding unit 3 is arranged in the tank body 1, and the uniform feeding unit 3 uniformly transmits the powder to the outer side of the classifying wheel unit 2; the air supply unit 4 supplies air into the tank body 1, and the air flow is blown to the inner side of the classifying wheel unit 2 from the outer side; the multi-stage separation unit 5 performs multi-stage airflow separation on the powder by the multi-stage separation unit 5;

preferably, as shown in fig. 2, the classifying wheel unit 2 includes: a rotating wheel 21, the rotating wheel 21 being arranged in the tank 1; the blade assemblies 22, a plurality of groups of blade assemblies 22 are arranged on the rotating wheel 21; a fixed disk 23, the fixed disk 23 being mounted on the blade assembly 22; the driving assembly 24 is used for driving the rotating wheel 21 to rotate, and the plurality of groups of blade assemblies 22 are arranged at equal angles around the axis of the rotating wheel 21;

further, as shown in fig. 2, the driving assembly 24 includes: a connecting rod 241, the connecting rod 241 being mounted on the fixed disk 23; a fixing plate 242, the fixing plate 242 being mounted on the can 1; a rotation driving member a243, the rotation driving member a243 being mounted on the fixing plate 242; the transmission part 244, the rotation driving member a243 drives the connection rod 241 to rotate through the transmission part 244, and the transmission part 244 is preferably a belt.

Further, as shown in fig. 3 and 4, the blade assembly 22 includes: a rotating lever 221, wherein two sets of rotating levers 221 are rotatably provided on the rotating wheel 21; a vane a222, the vane a222 being mounted on the rotation lever 221; the arc-shaped baffle plates 223, wherein the arc-shaped baffle plates 223 are arranged outside the two groups of rotating rods 221; a gear a224, wherein the gear a224 is arranged at the bottom of the rotating rod 221, and two groups of gears a224 are meshed; a gear b225, the gear b225 being installed at the bottom of one of the rotation bars 221; a groove 211 is formed in the rotating wheel 21; the gear ring f226 is meshed with the gear b225 by rotating the gear ring f226 arranged in the groove 211; a rotation driving member b228, the rotation driving member b228 being installed in the rotation wheel 21; the gear f227, the gear f227 mounted on the output end of the rotary driving member b228 is meshed with the ring gear f 226.

In the embodiment, the gear f227 is driven to rotate by the rotary driving piece b228 to drive the toothed ring f226 to rotate, so that the gear b225 is driven to rotate to drive the two groups of rotating rods 221 to reversely rotate, so that the blades a222 are driven to rotate, gaps between two groups of adjacent blades a222 are adjusted, the gaps can be flexibly adjusted according to use requirements to classify powder with different particle sizes, and the device is convenient to use;

further, as shown in fig. 6 to 7, the uniform feeding unit 3 includes: a funnel a31, the funnel a31 being mounted on the tank 1; the support shell 32, the support shell 32 locates in the can 1, connect through the support plate 321 between fixed disk 23 and the support shell 32; the pushing assembly 33, the pushing assembly 33 is arranged on the supporting shell 32; the uniform spreading component 34, and the pushing component 33 transmits the powder in the funnel a31 into the uniform spreading component 34; the beating component 35 and the uniform scattering component 34 uniformly sprinkle the powder in the space between the supporting shell 32 and the supporting plate 321, and the beating component 35 beats the powder to break up the agglomerated powder particles.

Preferably, as shown in fig. 8-10, the pusher assembly 33 includes: inclined tubes 331, a plurality of groups of inclined tubes 331 are arranged on the funnel a 31; a feed pipe 332, the feed pipe 332 being mounted on the inclined tube 331; an L-shaped pushing plate 333, wherein the L-shaped pushing plate 333 is slidably arranged in the conveying pipe 332; the fixed seat 334, the fixed seat 334 is installed on the support shell 32; the rotating shaft 335 is rotatably arranged on the fixed seat 334, and an inclined ring groove 3351 is formed in the rotating shaft 335; the fixed sleeve 336, the fixed sleeve 336 is mounted on the support shell 32; the sliding sleeve 337, the sliding sleeve 337 is slidably arranged in the fixed sleeve 336, and the guiding strip 3371 is arranged on the sliding sleeve 337; a slide bar a338, the slide bar a338 installed in the slide sleeve 337 slides in the inclined ring groove 3351; a driving part a339, wherein the driving part a339 drives the rotation shaft 335 to rotate, a moving groove 3361 is formed in the fixed sleeve 336, and the sliding sleeve 337 slides in the moving groove 3361;

the driving unit a339 includes: gear g3391, gear g3391 is installed on one end of rotation shaft 335; the gear ring g3392, the gear ring g3392 is installed on the connecting rod 241, the gear ring g3392 is meshed with the gear g3391, the connecting rod 241 rotates to drive the gear ring g3392 to rotate, and the rotating shaft 335 can be driven to rotate.

In this embodiment, powder is added into the funnel a31, the powder enters the conveying pipe 332 through the inclined tube 331 under the action of gravity, the driving part a339 drives the rotating shaft 335 to rotate, the sliding rod a338 slides in the inclined ring groove 3351 to drive the sliding sleeve 337 to slide back and forth in the moving groove 3361, and the powder in the conveying pipe 332 is pushed back and forth into the funnel b 341;

preferably, as shown in fig. 8, the uniform spreading assembly 34 includes: a funnel b341, wherein the funnel b341 is arranged at one end of the material conveying pipe 332 and is communicated with the material conveying pipe 332; the round tube 342, the round tube 342 is rotatably arranged at the bottom of the funnel b 341; a plurality of groups of scattering pipes 343 are arranged on the circular pipe 342, and the scattering pipes 343 are arranged between the support shell 32 and the support plate 321; the driving part b344, the driving part b344 drives the round tube 342 to rotate, and a plurality of groups of funnels b341 are arranged around the axis of the supporting shell 32 at equal angles;

the driving part b344 includes a gear d3441, and the gear d3441 is mounted on the circular tube 342; toothed ring d3442, toothed ring d3442 is rotatably arranged outside supporting plate 321, gear d3441 is meshed with toothed ring d3442, and rotation of toothed ring d3442 is preferably driven by a motor:

in this embodiment, under the action of gravity, the powder in the funnel b341 enters the circular tube 342, the circular tube 342 is driven to rotate by the driving part b344, and under the action of centrifugal force, the powder in the circular tube 342 is uniformly thrown out through the material scattering tube 343, and the thrown powder falls downwards in contact with the supporting shell 32 and the supporting plate 321; meanwhile, the round tube 342 and the scattering tube 343 are internally provided with heating wires, and the heating wires heat and dry the powder to remove the moisture in the powder, thereby facilitating the subsequent air flow classification;

preferably, as shown in fig. 8, the flapping assembly 35 includes: a rotating rod 351, the rotating rod 351 is rotatably arranged below the circular tube 342; a tapping plate 352, a plurality of groups of tapping plates 352 being mounted on the rotating rod 351, the tapping plate 352 being located between the support case 32 and the support plate 321; a driving part c353, the driving part c353 driving the rotating rod 351 to rotate;

the driving part c353 includes a gear e3531, and the gear e3531 is mounted on the rotating lever 351; the gear ring e3532, the gear ring e3532 is rotationally arranged outside the supporting plate 321, the gear ring e3532 is meshed with the gear e3531, the rotation of the gear ring e3532 is preferably driven by a motor, and it should be noted that: the middle of the toothed ring e3532 is hollowed out, so that powder can conveniently pass through.

In the embodiment, the driving part c353 drives the rotating rod 351 to rotate to drive the beating plate 352 to rotate so as to beat the falling powder, so that the agglomerated powder particles are smashed, and the air classification is prevented from being influenced by the agglomeration of the powder particles;

in this embodiment, the multiple groups of funnels b341 are arranged around the axis of the tank body 1 at equal angles, so that the powder in the funnels a31 uniformly flows into the funnels b341 in equal quantity, and is uniformly thrown out through the pipe 343 after passing through the round pipe 342, and the fallen powder is hit through the rotation of the beating plate 352, so that the space between the supporting shell 32 and the supporting plate 321 is uniformly filled with the powder, and the powder uniformly falls on the outer side of the classifying wheel unit 2 under the action of gravity, thereby improving the air flow classifying efficiency;

it should be noted that: if the powder is fed from one end, when the powder falls on the outer side of the classifying wheel unit 2, more powder is formed on one side (because more powder forms certain accumulation, some fine powder can pass through the blade a222, and some fine powder cannot pass through the blade a222 because of accumulation blocking), and the powder on the other side is smaller (only small amount of powder is subjected to air flow classification), namely, one side is too much, and the other side is too little, so that the efficiency of air flow classification of the powder is reduced;

further, as shown in fig. 7, 8 and 14, the multi-stage sorting unit 5 includes: a circular plate 51, the circular plate 51 being mounted on the support housing 32; the material guiding plate 52, the material guiding plate 52 below the circular plate 51 is installed on the supporting shell 32; the inclined plate 53, the inclined plate 53 positioned below the material guiding plate 52 is arranged on the supporting shell 32, and the circular ring plate 51, the material guiding plate 52 and the inclined plate 53 correspond to the positions of the blade assemblies 22;

further, as shown in fig. 7, 8 and 14, the air supply unit 4 includes: a convex shell 12, the convex shell 12 is arranged on the tank body 1; an air inlet pipe 41, wherein the air inlet pipe 41 is arranged on one side of the convex shell 12; the air blowing pipe a42, the air blowing pipe a42 arranged on the supporting shell 32 corresponds to the position of the circular plate 51; the air blowing pipes b43 are arranged on the supporting shell 32, the air blowing pipes b43 correspond to the inclined plates 53 in position, and a plurality of groups of air blowing pipes a42 are arranged around the axis of the supporting shell 32 at equal angles; a plurality of groups of air blowing pipes b43 are arranged at equal angles around the axis of the supporting shell 32;

in the embodiment, high-speed air flow is introduced into the air inlet pipe 41, and the high-speed air flow is blown out through the pipeline by the air blowing pipe a42 and the air blowing pipe b 43;

the powder particles broken by the beating plate 352 fall on the circular plate 51, and the air blowing pipe a42 blows the powder particles on the circular plate 51 to the blade assembly 22; powder meeting the particle requirements passes through gaps among the blades a222, enters the inside of the classifying wheel unit 2, and is discharged from the discharging pipe b14 under the action of gravity;

powder which does not meet the particle requirements is impacted on the outer side of the blade assembly 22 to rebound, and is discharged downwards through the guide plate 52 and the inclined plate 53 under the action of gravity and then discharged from the discharge pipe a 13;

it should be noted that: the powder particles on the circular plate 51 are blown to the blade assembly 22 by the air blowing pipe a42 to carry out primary air flow classification, the residual powder particles fall on the guide plate 52 under the action of gravity and continue to be downwards transmitted to the inclined plate 53, the powder particles on the inclined plate 53 are blown to the blade assembly 22 by the air blowing pipe b43 to carry out secondary air flow classification, multiple groups are correspondingly arranged by the air blowing pipe b43 through arranging multiple groups at intervals between the guide plate 52 and the inclined plate 53, and the powder particles are subjected to multiple air flow classification, so that the air flow classification efficiency is greatly improved.

Example two

As shown in fig. 11, wherein the same or corresponding parts as those in the first embodiment are denoted by the same reference numerals as those in the first embodiment, only the points of distinction from the first embodiment will be described below for the sake of brevity. The second embodiment is different from the first embodiment in that:

the classifying wheel unit 2 in this embodiment further includes a particle cleaning assembly 25, and the particle cleaning assembly 25 removes particles trapped between the two sets of blades a222, it should be noted that: when powder particles are blown to the blades a222, a part of particles are clamped between the two groups of blades a222, and if the powder particles are not cleaned in time, the air flow classification effect is affected.

Further, as shown in fig. 11 and 12, the particle cleaning assembly 25 includes: a movement driving member 251; the movement driving member 251 is installed inside the connection rod 241; a movement frame 252, the movement frame 252 being mounted at an output end of the movement driving member 251; the fixed ring 253 is arranged on the moving frame 252, and a plurality of groups of circular grooves 2531 are formed in the fixed ring 253; a moving rod 254, the moving rod 254 being slidably disposed within the circular groove 2531; a pressing rod 255, the pressing rod 255 being mounted on the moving rod 254; the rotating disc 256 is rotatably arranged on the fixed ring 253, and a plurality of groups of sliding grooves 2561 are formed in the rotating disc 256; a sliding rod b257, the sliding rod b257 installed at the bottom of the moving rod 254 slides in the chute 2561; a driving part d258, the driving part d258 driving the rotating disc 256 to rotate;

as shown in fig. 21, the driving section d258 includes: the connecting sleeve 2560, the connecting sleeve 2560 is arranged on the rotating disc 256, an avoidance groove 25601 is formed in the connecting sleeve 2560, and the moving frame 252 moves in the avoidance groove 25601; a rotation driving member k2581, the rotation driving member k2581 being mounted on the moving frame 252; the gear k2582, the gear k2582 is installed at the output end of the rotary driving piece k2581, the toothed ring k2583 is installed on the connecting sleeve 2560, and the toothed ring k2583 is meshed with the rotary driving piece k 2581.

As shown in fig. 20, in the original state, the extrusion rod 255 is located at the point a, and at this time, the extrusion rod 255 is located in the two sets of blades a222, the two sets of blades a222 protect the extrusion rod 255, and the extrusion rod 255 does not affect the powder to perform airflow classification;

in this embodiment, when the particles trapped between the two sets of blades a222 need to be cleaned, the gear k2582 is driven to rotate reversely by the rotary driving member k2581, the toothed ring k2583 is driven to rotate reversely, the connecting sleeve 2560 is driven to rotate reversely relative to the moving frame 252, the rotating disc 256 is driven to rotate reversely, the sliding rod b257 slides in the sliding groove 2561, and the moving rod 254 is driven to move inwards along the circular groove 2531;

as shown in fig. 20, the extrusion rod 255 is driven to move from point a to point b, and the motion driving member 251 drives the motion frame 252 to rotate, so as to drive the extrusion rod 255 to move from point b to point c; at this time, the rotation driving member k2581 drives the gear k2582 to rotate forward, the rotation plate 256 is driven to rotate forward, the sliding rod b257 slides in the sliding groove 2561, the moving rod 254 is driven to move outwards (move along the X direction) along the circular groove 2531, the pressing rod 255 is driven to move from the point c to the point d, particles clamped between the two groups of blades a222 are extruded, and then the particles are cleaned.

Example two

The embodiment provides a use method of a circulating air supply clear powder air flow classification device, which comprises the following steps:

step one, blade adjusting procedure: the gear f227 is driven to rotate by the rotary driving piece b228 to drive the toothed ring f226 to rotate, the gear b225 is driven to rotate to drive the two groups of rotating rods 221 to reversely rotate, the blades a222 are driven to rotate, gaps between two groups of adjacent blades a222 are adjusted, the gaps can be flexibly adjusted according to use requirements to classify powder with different particle sizes, and the device is convenient to use;

step two, a feeding procedure: adding powder into the funnel a31, enabling the powder to enter the conveying pipe 332 through the inclined tube 331 under the action of gravity, driving the rotating shaft 335 to rotate through the driving part a339, enabling the sliding rod a338 to slide in the inclined annular groove 3351, driving the sliding sleeve 337 to slide in the moving groove 3361 in a reciprocating manner, and pushing the powder in the conveying pipe 332 into the funnel b341 in a reciprocating manner;

step three, uniformly scattering materials: under the action of gravity, powder in the funnel b341 enters the circular tube 342, the circular tube 342 is driven to rotate by the driving part b344, the powder in the circular tube 342 is evenly thrown out through the material scattering tube 343 under the action of centrifugal force, and the thrown powder falls downwards in contact with the supporting shell 32 and the supporting plate 321;

step four, a beating procedure: the driving part c353 drives the rotating rod 351 to rotate and drives the beating plate 352 to rotate so as to beat the falling powder, so that the agglomerated powder particles are smashed, and the air classification is prevented from being influenced by the agglomeration of the powder particles;

step five, airflow classification working procedure: high-speed air flow is introduced into the air inlet pipe 41, the high-speed air flow is blown out through the air blowing pipe a42 and the air blowing pipe b43 by virtue of the pipelines, the powder particles which are smashed by beating through the beating plate 352 fall on the annular plate 51, and the air blowing pipe a42 blows the powder particles on the annular plate 51 to the blade assembly 22;

powder meeting the particle requirements passes through gaps among the blades a222, enters the inside of the classifying wheel unit 2, and is discharged through the discharging pipe b14 under the action of gravity;

powder which does not meet the particle requirements impacts the outer side of the blade assembly 22, and is discharged downwards through the material guide plate 52 and the inclined plate 53 under the action of gravity and is discharged through the discharge pipe a 13;

step six, a particle cleaning procedure: the gear k2582 is driven to rotate reversely through the rotary driving piece k2581, the toothed ring k2583 is driven to rotate reversely, the connecting sleeve 2560 is driven to rotate reversely relative to the moving frame 252, the rotating disc 256 is driven to rotate reversely, the sliding rod b257 slides in the sliding groove 2561, and the moving rod 254 is driven to move inwards along the circular groove 2531;

as shown in fig. 20, the extrusion rod 255 is driven to move from point a to point b, and the motion driving member 251 drives the motion frame 252 to rotate, so as to drive the extrusion rod 255 to move from point b to point c; at this time, the rotation driving member k2581 drives the gear k2582 to rotate forward, the rotation plate 256 is driven to rotate forward, the sliding rod b257 slides in the sliding groove 2561, the moving rod 254 is driven to move outwards (move along the X direction) along the circular groove 2531, the pressing rod 255 is driven to move from the point c to the point d, particles clamped between the two groups of blades a222 are extruded, and then the particles are cleaned.

The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.

Claims (10)

1. The utility model provides a clear powder air current grading plant of circulation air feed, includes jar body (1), its characterized in that still includes:

the classifying wheel unit (2), the said classifying wheel unit (2) locates in the said tank (1);

the uniform feeding unit (3) is arranged in the tank body (1), and the uniform feeding unit (3) uniformly transmits the powder to the outer side of the classifying wheel unit (2);

the air supply unit (4) supplies air into the tank body (1), and air flow is blown to the inner side of the classifying wheel unit (2) from the outer side;

the multi-stage separation unit (5) is used for carrying out multi-stage airflow separation on the powder by the multi-stage separation unit (5);

the classifying wheel unit (2) includes:

the rotating wheel (21), the said rotating wheel (21) locates in the said tank (1);

the blade assemblies (22) are arranged on the rotating wheel (21), and a plurality of groups of the blade assemblies (22) with adjustable gaps are arranged on the rotating wheel;

-a fixed disc (23), said fixed disc (23) being mounted on top of said blade assembly (22);

and the driving assembly (24) is used for driving the rotating wheel (21) to rotate.

2. A circulating air fed dust removal air flow classifying device according to claim 1, wherein said vane assembly (22) comprises:

a rotating rod (221), wherein two groups of rotating rods (221) are rotatably arranged on the rotating wheel (21);

a blade a (222), the blade a (222) being mounted on the rotation lever (221);

the arc-shaped baffle plates (223) are arranged outside the two groups of rotating rods (221);

a gear a (224), wherein the gear a (224) is arranged at the bottom of the rotating rod (221), and two groups of gears a (224) are meshed with each other;

a gear b (225), wherein the gear b (225) is installed at the bottom of one of the rotating rods (221); a groove (211) is formed in the rotating wheel (21);

a toothed ring f (226), wherein the toothed ring f (226) rotationally arranged in the groove (211) is meshed with the gear b (225);

a rotary drive b (228), the rotary drive b (228) being mounted within the rotatable wheel (21);

a gear f (227), wherein the gear f (227) mounted on the output end of the rotary driving member b (228) is meshed with the toothed ring f (226).

3. A circulating air feed dust removal air flow classifying device according to claim 2, characterized in that the uniform feeding unit (3) comprises:

a funnel a (31), wherein the funnel a (31) is arranged on the tank body (1);

the support shell (32), the support shell (32) is arranged in the tank body (1), and the support shell (32) is connected with the fixed disc (23) through a support plate (321);

the pushing assembly (33), the said pushing assembly (33) locates on said support shell (32);

the material pushing assembly (33) is used for conveying the powder in the funnel a (31) into the material uniformly-scattering assembly (34);

the powder stirring device comprises a stirring assembly (35), wherein powder is uniformly sprayed in a space between the supporting shell (32) and the supporting plate (321) by the aid of the uniform spraying assembly (34), and the stirring assembly (35) is used for stirring the powder to break up agglomerated powder particles.

4. A circulating air fed dust removal air flow classifying device according to claim 3, wherein the pushing assembly (33) comprises:

a plurality of groups of inclined pipes (331) are arranged on the funnel a (31);

a conveying pipe (332), wherein the conveying pipe (332) is arranged at the bottom of the inclined pipe (331);

an L-shaped pushing plate (333), wherein the L-shaped pushing plate (333) is slidably arranged in the conveying pipe (332);

the fixed seat (334), the said fixed seat (334) is installed on said support shell (32);

the rotating shaft (335) is rotatably arranged on the fixed seat (334), and an inclined ring groove (3351) is formed in the rotating shaft (335);

the fixing sleeve (336), the fixing sleeve (336) is arranged on the supporting shell (32), and a movement groove (3361) is formed in the fixing sleeve (336);

the sliding sleeve (337) is arranged in the moving groove (3361) in a sliding way, and a guide strip (3371) is arranged on the sliding sleeve (337);

a slide rod a (338), wherein the slide rod a (338) arranged in the slide sleeve (337) slides in the inclined ring groove (3351);

and a driving part a (339), wherein the driving part a (339) drives the rotation shaft (335) to rotate.

5. A circulating air fed dust removal air flow classifying apparatus according to claim 4, wherein said uniform spreading assembly (34) comprises:

the funnels b (341) are arranged at one end of the conveying pipe (332), the funnels b (341) are communicated with the conveying pipe (332), and a plurality of groups of funnels b (341) are arranged around the axis of the supporting shell (32) at equal angles;

the round tube (342), the said round tube (342) rotates and locates the bottom of the said funnel b (341);

a plurality of groups of scattering pipes (343) are arranged on the circular pipe (342), the scattering pipes (343) are positioned between the supporting shell (32) and the supporting plate (321), and heating wires are arranged in the circular pipe (342) and the scattering pipes (343);

a driving part b (344), wherein the driving part b (344) drives the round tube (342) to rotate;

the beating assembly (35) comprises:

a rotating rod (351), wherein the rotating rod (351) is rotationally arranged below the circular tube (342);

a plurality of groups of beating plates (352) are arranged on the rotating rod (351), and the beating plates (352) are positioned between the supporting shell (32) and the supporting plate (321);

and a driving unit (353), wherein the driving unit (353) drives the rotating rod (351) to rotate.

6. A circulating air feed dust removal air flow classifying device according to claim 5, characterized in that the multi-stage classifying unit (5) comprises:

a circular plate (51), the circular plate (51) being mounted on the support housing (32);

the material guide plate (52) is positioned below the circular ring plate (51), and the material guide plate (52) is arranged on the support shell (32);

the inclined plate (53) is arranged below the material guiding plate (52) and is arranged on the supporting shell (32), and the circular ring plate (51), the material guiding plate (52) and the inclined plate (53) are arranged on the outer side of the blade assembly (22);

the air supply unit (4) includes:

a convex shell (12), wherein the convex shell (12) is arranged on the tank body (1);

an air inlet pipe (41), wherein the air inlet pipe (41) is arranged at one side of the convex shell (12);

the air blowing pipes a (42) are arranged on the supporting shell (32), the air blowing pipes a (42) are corresponding to the circular ring plate (51), and a plurality of groups of air blowing pipes a (42) are arranged around the axis of the supporting shell (32) at equal angles;

and the air blowing pipes b (43) are arranged on the supporting shell (32), the positions of the air blowing pipes b (43) correspond to the positions of the inclined plates (53), and a plurality of groups of air blowing pipes b (43) are arranged around the axis of the supporting shell (32) at equal angles.

7. A circulating air fed dust removal air flow classifying device according to claim 6, wherein said drive assembly (24) comprises:

-a connecting rod (241), said connecting rod (241) being mounted on said fixed disk (23);

a fixing plate (242), the fixing plate (242) being mounted on the tank (1);

a rotation driving member a (243), the rotation driving member a (243) being mounted on the fixed plate (242);

and the transmission part (244) is used for driving the connecting rod (241) to rotate by the rotary driving piece a (243) through the transmission part (244).

8. A circulating air-fed dust air flow classifying device according to claim 7, characterized in that the classifying wheel unit (2) further comprises a particle cleaning assembly (25), the particle cleaning assembly (25) removing particles trapped between two sets of the blades a (222).

9. A circulating air fed dust removal air flow classifying device according to claim 8, wherein said particle cleaning assembly (25) comprises:

a movement driving member (251);

a motion frame (252), the motion frame (252) being mounted to an output end of the motion driving member (251);

the fixed ring (253), the fixed ring (253) is installed on the moving frame (252), and a plurality of groups of circular grooves (2531) are formed in the fixed ring (253);

a moving rod (254), wherein the moving rod (254) is slidably arranged in the circular groove (2531);

a pressing rod (255), the pressing rod (255) being mounted on the moving rod (254);

a rotating disc (256), wherein the rotating disc (256) is rotationally arranged in the fixed ring (253), and a plurality of groups of sliding grooves (2561) are formed in the rotating disc (256);

a sliding rod b (257), wherein the sliding rod b (257) arranged at the bottom of the moving rod (254) slides in the chute (2561);

and a driving part d (258), wherein the driving part d (258) drives the rotating disc (256) to rotate.

10. The application method of the circulating air supply clear powder air flow classification device is characterized by comprising the following steps of:

step one, blade adjusting procedure: the gear f (227) is driven to rotate by the rotary driving piece b (228), the toothed ring f (226) is driven to rotate, the gear b (225) is driven to rotate, the two groups of rotating rods (221) are driven to reversely rotate, the blades a (222) are driven to rotate, gaps between two groups of adjacent blades a (222) are regulated, the gaps can be flexibly regulated according to use requirements to classify powder with different particle sizes, and the device is convenient to use;

step two, a feeding procedure: powder is added into the funnel a (31), enters the conveying pipe (332) through the inclined pipe (331) under the action of gravity, the driving part a (339) drives the rotating shaft (335) to rotate, the sliding rod a (338) slides in the inclined annular groove (3351) to drive the sliding sleeve (337) to slide back and forth in the movement groove (3361), and the powder in the conveying pipe (332) is pushed back and forth into the funnel b (341);

step three, uniformly scattering materials: under the action of gravity, powder in the funnel b (341) enters the circular tube (342), the circular tube (342) is driven to rotate by the driving part b (344), the powder in the circular tube (342) is evenly thrown out through the material scattering tube (343) under the action of centrifugal force, and the thrown powder falls downwards in contact with the supporting shell (32) and the supporting plate (321);

step four, a beating procedure: the driving part c (353) drives the rotating rod (351) to rotate, drives the beating plate (352) to rotate so as to beat the falling powder, and further breaks up the agglomerated powder particles, so that the agglomeration of the powder particles is prevented from affecting air classification;

step five, airflow classification working procedure: high-speed air flow is introduced into the air inlet pipe (41), the high-speed air flow is blown out through the air blowing pipe a (42) and the air blowing pipe b (43), powder particles smashed through the beating plate (352) fall on the annular plate (51), and the air blowing pipe a (42) blows the powder particles on the annular plate (51) to the blade assembly (22);

powder meeting the particle requirements passes through gaps among the blades a (222), enters the classifying wheel unit (2), and is discharged through the discharging pipe b (14) under the action of gravity;

powder which does not meet the particle requirements impacts the outer side of the blade assembly (22), and is discharged downwards through the material guide plate (52) and the inclined plate (53) and discharged through the material discharge pipe a (13) under the action of gravity.