CN210230306U - Cyclone classification device - Google Patents

Abstract

The utility model discloses a whirl grading plant, including support frame, rotary device, screening plant, vibrating device, supporting shell and drive arrangement. The support frame is used for supporting rotary device, screening plant, supporting shell and drive arrangement, and the screening plant is located the supporting shell, and the inside top of screening plant is fixed with the rotary device with the axial lead, and rotary device is driven by drive arrangement, and vibrating device is located screening plant upper portion below, for the vibration of screening plant provides sharp vibration power, and drive arrangement is located rotary device's top, provides power for rotary device's rotation. The utility model discloses can effectively avoid screen cloth stifled hole and the emergence of the fine phenomenon of sand return clamp, alleviate cyclic load, reduce the energy consumption, effectively improve the classification precision and the classification efficiency of ore pulp thickness granule, still have area little, easily operation, advantage such as with low costs.

Description

Cyclone classification device

Technical Field

The utility model relates to a cyclone separation technical field, in particular to cyclone grading plant.

Background

The grading equipment is widely applied to separation of materials such as ore materials and coal, grading is used for separating coarse particles, returning the coarse particles to the ball mill for regrinding, fine particles enter a grading system to be sorted, the grading process is often inaccurate in grading precision, the grading efficiency is not high, the fine particles in returned sand circulating are increased, the circulating and grinding load is increased, the fine particles enter the ball mill again to be forcedly and excessively dissociated, coarse particles are not ground sufficiently, the fine particles are ground excessively, and the like, so that the grading equipment is not beneficial to grading operation, and the recovery rate of useful minerals is reduced. Therefore, the improvement of the classification precision and the classification efficiency of the equipment is an urgent problem to be solved, the coarse fraction content of the selected particles can be reduced by improving the classification precision, the particle size distribution is optimized, the improvement of the classification efficiency is favorable for reducing the returned sand fineness, the cyclic load is reduced, and the ore grinding cost and the energy consumption are reduced.

In the non-ferrous metal beneficiation process, the following classification equipment is common: (1) screen mesh grading: grading accurately according to the granularity, and is characterized by high grading precision, easy hole blockage of a screen, serious abrasion and the like; (2) hydraulic classification: fuzzy classification according to the sedimentation velocity, and has the characteristics of simple structure, low operation cost, large occupied area, low classification precision, low classification efficiency and the like; (3) and (3) centrifugal classification: according to the fuzzy classification of the radial speed difference, the method is characterized in that: the method has the advantages of small occupied area, large treatment capacity, high grading efficiency, low grading precision, high energy consumption, easy blockage of the sand setting nozzle, strict use conditions, high cost and the like; (4) screening in combination with hydraulic classification: the combination of particle size classification and sedimentation (centrifugal) speed differential classification is characterized in that: high grading precision, high grading efficiency, low treatment capacity, high energy consumption, strict use conditions and the like.

In order to solve the problems of classification efficiency and classification precision of classification equipment, some solutions are also proposed in the existing patent documents. The application number is 201810131344.4's chinese patent discloses a whirl classifying column and uses it to ore pulp coarse and fine particle classification, and the device passes through the screen cloth and grades, can realize the whirl of two products of coarse grain and fine particle and grade, can improve classification accuracy and classification efficiency to a certain extent, nevertheless adopts the tube-shape screen cloth, can't avoid the stifled hole problem of screen cloth, and the coarse grain is directly discharged after once grading simultaneously, and difficult the meeting of exempting from in the coarse grain is mingled with the fine particle. The Chinese patent with the application number of 201010105921.6 discloses a cyclone classifying screen for three products, which comprises a cylindrical guide cylinder, a cyclone cylindrical cylinder and a cyclone conical cylinder, and can realize cyclone classification of three products, wherein the pressure difference of the outer cyclone of the side wall under a strong centrifugal force field is utilized to realize screening through fine particles, thereby eliminating the problem that the circulation flow near the side wall and the top cover of the cyclone is coarse, effectively controlling the upper limit rate in overflow and the lower limit rate in underflow, and improving the classifying efficiency and the treatment capacity of the cyclone.

Disclosure of Invention

The utility model aims at prior art not enough, provide a whirl grading plant with vibration function to prevent that screen cloth stifled hole and sand return from pressing from both sides the emergence of thin phenomenon, alleviate circulation load, reduce cost and energy consumption, improve the classification accuracy and the classification efficiency of ore pulp thickness granule, can overcome prior art's defect.

The utility model discloses the technical problem that will solve adopts following technical scheme to realize.

A cyclone classification device comprises a support frame, a rotating device, a screening device, a vibrating device, a support shell and a driving device. The screening device is arranged in the support shell, the top of the screening device is placed in an annular groove in the top of the support shell, and the bottom of the screening device is fixedly connected with the lower support frame; the screening device is characterized in that a rotating device with the same axis is fixed above the inside of the screening device, the top of the rotating device is fixedly connected with a driving device, the vibrating device is located below the upper portion of the screening device, the middle lower portion of the supporting shell is fixedly connected with the lower supporting frame, and the driving device is located above the top of the rotating device and fixedly connected with the upper supporting frame.

The upper support frame and the lower support frame are used for supporting the driving device, the supporting shell, the screening device and the rotating device. The upper support frame is positioned above the lower support frame and is connected with the lower support frame in a welding mode, the upper end of the lower support frame is fixed on the column section below the middle of the support shell, and the lower end of the lower support frame is fixed on the ground through four support legs.

The rotating device comprises a rotating shaft, a blade shaft sleeve, a blade, a bearing and a bearing seat. Wherein, the lower part of the rotating shaft is provided with a blade shaft sleeve with the same axial lead, and blades are arranged on the blade shaft sleeve; the rotating shaft and the blade shaft sleeve are fixedly connected through a bolt, the rotating shaft is driven by a driving device, the upper part of the rotating shaft passes through a central through hole in the top of the supporting shell and then is installed on the upper supporting frame through a fastener bolt by virtue of a bearing and a bearing seat, the bearing is used for supporting and fixing the rotating shaft, and the bearing seat is used for fixing and installing the bearing.

The screening device comprises an inverted circular truncated cone-shaped screen mesh, a cone section body and a guide shell. The inverted truncated cone-shaped screen mesh comprises an inverted truncated cone-shaped screen mesh, a supporting frame, a lower fixing frame, a supporting frame and a plurality of supporting strips, wherein the upper fixing frame is arranged above the top of the inverted truncated cone-shaped screen mesh, the upper fixing frame is arranged in an annular groove in the top of a supporting shell and used for placing and fixing the top of the inverted truncated cone-shaped screen mesh, a rotating shaft and a blade shaft sleeve share the same axial lead, the lower fixing frame is arranged below the bottom of the inverted truncated cone-shaped screen mesh and used for placing and fixing the bottom of the inverted truncated cone-shaped screen mesh, supporting strips parallel to the inverted truncated cone-shaped; the lower fixing frame is fixedly provided with a circular positioning boss which has the same axial lead with the inverted circular truncated cone-shaped screen mesh, a strip-shaped support bar is fixed below the circular positioning boss, the circular positioning boss is arranged at the joint of the middle part of the six support cross bars and the top of the cone section body, the strip-shaped support bar is composed of the six support cross bars which are uniformly dispersed outwards from the center on the same horizontal plane, the dispersing end of each cross bar is connected with the inner circle part at the upper part of the lower fixing frame through a bolt, and the circular positioning boss is fixedly connected with the strip-shaped support bar through a bolt; the device comprises a conical section body, a connecting plate, a first valve, a second valve, a circulating pump, a second feeding hole, a first feeding hole, a second valve, a first valve, a second feeding hole, a first feeding hole, a second valve, a second feeding hole, a first valve, a second feeding hole, a first valve, a second feeding hole, a second valve, a second feeding hole, a; the top of the guide shell is arranged on the outer side of the inverted-circular-truncated-cone-shaped screen, the guide shell extends towards the top along the bottom of the inverted-circular-truncated-cone-shaped screen and is lower than the meshes at the bottom of the inverted-circular-truncated-cone-shaped screen, and the bottom of the guide shell is positioned on the coarse particle outlet pipeline at the bottom of the lower cone body.

The vibrating device comprises a vibrating motor, telescopic supporting legs and a connecting plate. The top of each telescopic supporting leg is connected with the lower fixing frame through a ball hinge, the bottom of each telescopic supporting leg is fixedly connected with the connecting plate through a bolt, four telescopic supporting legs are uniformly distributed between the lower fixing frame and the connecting plate, and each telescopic supporting leg adopts a double-acting hydraulic cylinder or a double-acting electro-hydraulic cylinder or a double-acting air cylinder; the vibrating motor has four, the specification model is the same completely, and even fixed mounting is in mount bottom down, for screening plant's vibration provides the exciting vibration power, the connecting plate is arranged in the annular groove on direction shell upper portion.

The support shell comprises a first feed port, a second feed port and a shell. The first feed port is arranged on the left side of the top of the shell, the second feed port is arranged on the right side of the top of the shell, the shell is divided into four parts, the four parts are fixedly connected through bolts, the bottom of the shell is a fine particle outlet pipeline, and a third valve is arranged at the bottom of the fine particle outlet pipeline and used for controlling the discharge of fine particles; the driving device is a motor.

The blade be the flat, include three-section structure along length direction, be close to the root and be trapezoidal section, the point portion is the semicircle, and the middle part is the arc section, and the tip portion is 8 ~ 15 for the root downward sloping, the tip of blade and the horizontal interval of radius platform form screen cloth be 4 ~ 6 cm.

The novel ore pulp particle separation device is characterized in that three blades are uniformly arranged on the same circumferential layer of the blade shaft sleeve, 8-12 layers of blades are arranged along the axial direction of the blade shaft sleeve, the blades on odd layers and the blades on even layers are arranged in a staggered mode, the angles of the roots of 6 blades on the odd layer and the root of the even layer adjacent to each other are larger than or equal to 3600, the ore pulp particle splashing can be prevented, and the distance between every two adjacent layers of blades is 4-8 cm.

When the slurry separator is used, a power switch is turned on, a frequency converter button of the motor is rotated, the rotating speed of the rotating shaft is adjusted, the vibrating motor is started simultaneously, slurry to be separated enters the inverted circular truncated cone-shaped screen from the feeding hole at a certain speed under certain pressure, the slurry level is 5-10 cm lower than the top end of the inverted circular truncated cone-shaped screen, the slurry performs high-speed rotating motion in a cyclone separation cavity formed by the blade shaft sleeve, the blades and the rotating shaft, fine particles move to the left side and the right side through meshes of the inverted circular truncated cone-shaped screen under the action of the high-speed rotating blades, coarse particles move downwards along the wall under the action of the high-speed rotating blades to prevent the fine particles from being mixed in the coarse particles, when the coarse particles move downwards along the wall, a second valve is opened and the circulating pump is started, the coarse particles which are just separated are placed in the inverted circular truncated cone-shaped screen to, then closing the second valve, starting the first valve, and discharging coarse particles; opening a third valve to discharge fine particles; after grading is completed, stopping adding the slurry into the feed port, supplementing water from the feed port, keeping the liquid level balanced until clear water is in the grading device, stopping water feeding, and waiting until the water completely flows out; and the rotating motor frequency converter button is used for adjusting the rotating speed of the rotating shaft to 0, closing the vibrating motor, closing the power switch and adjusting the first valve, the second valve and the third valve to a closed state.

Compared with the prior art, the cyclone grading device of the utility model can effectively avoid the sand return and fine sand inclusion, reduce the circulation load and the energy consumption, and has the characteristics of high grading precision, high grading efficiency and the like; compared with screen classification equipment, the screen hole blockage phenomenon can be effectively avoided, and the screen hole blockage device has the advantages of small occupied area, easiness in operation, low cost and the like, and can overcome the defects of the prior art.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic view of the lower fixing frame of the present invention;

FIG. 3 is a schematic structural view of the vibration device of the present invention;

fig. 4 is a schematic view of the blade structure of the present invention.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention will be further described with reference to the following embodiments and drawings.

As shown in figure 1, the cyclone classification device comprises a support frame 1, a rotating device 2, a screening device 3, a vibrating device 4, a support shell 5 and a driving device 6. The screening device 3 is positioned in the support shell 5, the top of the screening device is placed in an annular groove in the top of the support shell 5, and the bottom of the screening device is fixedly connected with the lower support frame 12; the screening device 3 is internally and above fixedly provided with a rotating device 2 with the same axis, the top of the rotating device 2 is fixedly connected with a driving device 6, the vibrating device 4 is positioned below the upper part of the screening device 3, the middle lower part of the supporting shell 5 is fixedly connected with a lower supporting frame 12, and the driving device 6 is positioned above the top of the rotating device 2 and fixedly connected with an upper supporting frame 11.

As shown in fig. 1, the upper support frame 11 and the lower support frame 12 are used to support the driving means 6, the support housing 5, the sieving means 3 and the rotating means 2. The upper support frame 11 is located above the lower support frame 12 and is connected with the lower support frame 12 through welding, the upper end of the lower support frame 12 is fixed on a column section below the middle of the support shell 5, and the lower end of the lower support frame 12 is fixed on the ground through four support legs.

As shown in fig. 1 and 4, the rotating device 2 includes a rotating shaft 21, a vane bushing 22, a vane 23, a bearing 24, and a bearing seat 25. Wherein, the lower part of the said spindle 21 is fitted with the coaxial blade axle sleeve 22, there are blades 23 on the said blade axle sleeve 22; the rotating shaft 21 is fixedly connected with the blade shaft sleeve 22 through bolts, the rotating shaft 21 is driven by the driving device 6, the upper portion of the rotating shaft 21 penetrates through a central through hole in the top of the supporting shell 5 and then is mounted on the upper supporting frame 11 through a fastener bolt by means of a bearing 24 and a bearing seat 25, the bearing 24 is used for supporting and fixing the rotating shaft 21, and the bearing seat 25 is used for fixing and mounting the bearing 24.

As shown in fig. 1, 2 and 3, the screening device 3 includes an inverted cone-shaped screen 31, a cone section 32 and a guide shell 33. Wherein, the top of the inverted circular truncated cone-shaped screen 31 is provided with an upper fixing frame 311, the upper fixing frame is arranged in the annular groove at the top of the supporting shell 5 and is used for placing and fixing the top of the inverted circular truncated cone-shaped screen 31, the rotating shaft 21 and the blade shaft sleeve 22 share the same axial line, the bottom of the inverted circular truncated cone-shaped screen 31 is provided with a lower fixing frame 312 and is used for placing and fixing the bottom of the inverted circular truncated cone-shaped screen 31, a supporting strip 3111 parallel to the inverted circular truncated cone-shaped screen 31 is uniformly fixed between the upper fixing frame 311 and the lower fixing frame 312, the inverted circular truncated cone-shaped screen 31 is fixedly connected with the supporting strip 3111 through bolts, the supporting strips 3111 are provided with four strips, the lower fixing frame 312 is provided with a circular ring-shaped positioning boss 313 which shares the same axial line with the inverted circular truncated cone-shaped screen 31, a strip supporting strip 314 is fixed below the circular ring-shaped, the bar-shaped support bar 314 consists of six support cross bars which are arranged on the same horizontal plane and uniformly disperse outwards from the center, the divergent ends of the cross bars are connected with the inner circle part at the upper part of the lower fixing frame 312 through bolts, and the circular positioning lug bosses 313 are fixedly connected with the bar-shaped support bar 314 through bolts; the conical section 32 comprises an upper conical section 321 and a lower conical section 322, the upper part of the upper conical section 321 is connected with the lower fixing frame 312 through bolts, the bottom of the upper conical section 321 is arranged below the connecting plate 43 and is connected with the connecting plate 43 through bolts, the upper conical section 321 is fixedly connected with the lower conical section 322 through bolts, the bottom pipeline of the lower conical section 322 is divided into two pipelines, one pipeline is a coarse particle outlet pipeline, the other pipeline is a coarse particle circulating pipeline, a first valve 3221 is arranged on the coarse particle outlet pipeline and used for controlling the discharge of coarse particles, a second valve 3222 is arranged on the coarse particle circulating pipeline, a circulating pump 3223 is arranged on the right side of the second valve 3222, and the pipeline on the right side of the circulating pump 3223 is communicated with the second feed inlet 52 and used for the circulating classification of the coarse particles and preventing the fine particles from being mixed in the coarse particles; the top of the guide shell 33 is arranged outside the inverted cone-shaped screen 31, extends to the top direction along the bottom of the inverted cone-shaped screen 31 and is lower than the meshes at the bottom of the inverted cone-shaped screen 31, and the bottom of the guide shell 33 is positioned above the coarse particle outlet pipeline at the bottom of the lower cone 322.

As shown in fig. 1 and 3, the vibration device 4 includes a vibration motor 41, an extendable leg 42, and a connecting plate 43. The top of each telescopic leg 42 is connected with the lower fixing frame 312 through a ball hinge, the bottom of each telescopic leg 42 is fixedly connected with the connecting plate 43 through a bolt, four telescopic legs 42 are uniformly distributed between the lower fixing frame 312 and the connecting plate 43, and each telescopic leg 42 adopts a double-acting hydraulic cylinder or a double-acting electro-hydraulic cylinder or a double-acting air cylinder; the vibrating motors 41 are four in number, the specifications and the models are completely the same, the vibrating motors are evenly and fixedly installed at the bottom of the lower fixing frame 312, exciting vibration force is provided for vibration of the screening device 3, and the connecting plate 43 is arranged in an annular groove in the upper portion of the guide shell 33.

As shown in fig. 1, the support housing 5 includes a first inlet 51, a second inlet 52, and a housing 53. The first feed port 51 is arranged on the left side of the top of the shell 53, the second feed port 52 is arranged on the right side of the top of the shell 53, the shell 53 is divided into four parts, the parts are fixedly connected through bolts, the bottom of the shell 53 is a fine particle outlet pipeline 531, and a third valve 5311 is arranged at the bottom of the fine particle outlet pipeline 531 and used for controlling the discharge of fine particles; the driving device 6 is a motor.

As shown in fig. 1 and 4, the blade 23 is a flat plate, and includes three sections along the length direction, the section near the root is a trapezoid section, the tip is a semi-arc, the middle section is an arc section, the tip of the blade 23 is inclined downward by 8 to 15 ° relative to the root, and the horizontal distance between the tip of the blade 23 and the inverted circular truncated cone-shaped screen 31 is 4 to 6 cm.

As shown in fig. 1, three blades 23 are uniformly arranged on the same circumferential layer of the blade shaft sleeve 22, 8-12 layers of blades 23 are arranged in the axial direction of the blade shaft sleeve 22, the blades 23 on odd layers and the blades 23 on even layers are arranged in a staggered manner, the angle of the root of 6 blades 23 which are arranged at the root of the odd layer of blades 23 and the root of the even layer of blades 23 on adjacent layers is more than or equal to 3600, the splashing of ore pulp particles is favorably prevented, and the distance between the blades 23 on each layer is 4-8 cm.

When the slurry separator is used, a power switch is turned on, a frequency converter button of a motor 6 is rotated, the rotating speed of a rotating shaft 21 is adjusted, a vibration motor 41 is started simultaneously, slurry to be separated enters the inverted circular truncated cone-shaped screen 31 from a first feeding hole 51 at a certain speed under a certain pressure, the level surface of the slurry is lower than the top end of the inverted circular truncated cone-shaped screen 31 by 5-10 cm, the slurry does high-speed rotating motion in a cyclone separation cavity formed by a blade shaft sleeve 22, blades 23 and the rotating shaft 21, fine particles move to the left side and the right side through meshes of the inverted circular truncated cone-shaped screen 31 under the action of the high-speed rotating blades 23, coarse particles move downwards along the wall under the action of the high-speed rotating blades 23, in order to prevent the fine particles from being mixed in the coarse particles, when the coarse particles move downwards along the wall, a second valve 3222 is opened and a circulating pump 3223 is started, and the coarse particles which are, until the fine particles mixed in the coarse particles are completely separated, the second valve 3222 is closed, the first valve 3221 is started, and the coarse particles are discharged; opening the third valve 5311 to discharge the fine particles; after the classification is finished, stopping adding the slurry into the first feeding hole 51, supplementing water from the first feeding hole 51, keeping the liquid level balance until the water in the screening device 3 is clear water, stopping water feeding, and waiting until the water is completely drained; the inverter button of the rotary motor 6 adjusts the rotation speed of the rotary shaft 21 to 0, turns off the vibration motor 41, turns off the power switch, and adjusts the first valve 3221, the second valve 3222, and the third valve 5311 to a closed state.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and simplification of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (8)

1. The utility model provides a whirl grading plant, includes support frame, rotary device, screening plant, vibrating device, support housing and drive arrangement, its characterized in that: the screening device is arranged in the support shell, the top of the screening device is placed in an annular groove in the top of the support shell, and the bottom of the screening device is fixedly connected with the lower support frame; a rotating device with the same axial lead is fixed above the inside of the screening device, the top of the rotating device is fixedly connected with a driving device, the vibrating device is positioned below the upper part of the screening device, the middle lower part of the supporting shell is fixedly connected with the lower supporting frame, and the driving device is positioned above the top of the rotating device and fixedly connected with the upper supporting frame;

the upper support frame is positioned above the lower support frame and is connected with the lower support frame through welding, the driving device is fixed on the upper support frame, the upper end of the lower support frame is fixed at the lower part of the support shell, and the lower end of the lower support frame is fixed on the ground through four support legs;

the rotating device consists of a rotating shaft, a blade shaft sleeve, blades, a bearing and a bearing seat, wherein the lower part of the rotating shaft is provided with the blade shaft sleeve with the same axial lead, and the blades are arranged on the blade shaft sleeve; the rotating shaft is fixedly connected with the blade shaft sleeve through a bolt, the rotating shaft is driven by a driving device, and the upper part of the rotating shaft passes through a central through hole in the top of the supporting shell and then is installed on the upper supporting frame through a fastener bolt by virtue of a bearing and a bearing seat;

the screening device comprises an inverted circular truncated cone-shaped screen mesh, a cone-shaped body and a guide shell, wherein an upper fixing frame is arranged above the top of the inverted circular truncated cone-shaped screen mesh and is arranged in an annular groove at the top of a support shell, a lower fixing frame is arranged below the bottom of the inverted circular truncated cone-shaped screen mesh, a supporting strip parallel to the inverted circular truncated cone-shaped screen mesh is fixed between the upper fixing frame and the lower fixing frame, the inverted circular truncated cone-shaped screen mesh is fixedly connected with the supporting strip through a bolt, an annular positioning boss with the same axial lead as the inverted circular truncated cone-shaped screen mesh is fixed on the lower fixing frame, and a strip-shaped supporting strip; the circular positioning bosses are arranged at the connecting positions of the middle parts of the six support cross bars and the tops of the conical sections; the top of the guide shell is arranged on the outer side of the inverted circular truncated cone-shaped screen, extends to the top direction along the bottom of the inverted circular truncated cone-shaped screen and is lower than the meshes at the bottom of the inverted circular truncated cone-shaped screen, and the bottom of the guide shell is positioned above the coarse particle outlet pipeline at the bottom of the lower cone;

the vibrating device comprises a vibrating motor, telescopic supporting legs and a connecting plate, wherein the tops of the telescopic supporting legs are connected with the lower fixing frame through ball hinges, the bottoms of the telescopic supporting legs are fixedly connected with the connecting plate through bolts, and four telescopic supporting legs are uniformly distributed between the lower fixing frame and the connecting plate; four vibration motors are uniformly and fixedly arranged at the bottom of the lower fixing frame, and the connecting plate is arranged in an annular groove at the upper part of the guide shell;

the supporting shell consists of a first feeding hole, a second feeding hole and a shell, and the first feeding hole is arranged on the left side of the top of the shell; the second feed inlet is arranged on the right side of the top of the shell.

2. A cyclone classification device according to claim 1, characterized in that: the blade be the flat, include three-section structure along length direction, be close to the root and be trapezoidal section, the point portion is the semicircle, and the middle part is the arc section, and the tip portion is 8 ~ 15 for the root downward sloping, the tip of blade and the horizontal interval of radius platform form screen cloth be 4 ~ 6 cm.

3. A cyclone classification device according to claim 1, characterized in that: three blades are uniformly arranged on the same circumferential layer of the blade shaft sleeve, 8-12 layers of blades are arranged in the axial direction of the blade shaft sleeve, the blades on odd layers and the blades on even layers are arranged in a staggered mode, and the angle between the root part of 6 blades on the odd layer and the root part of 6 blades on the even layer adjacent to each other is more than or equal to 360⁰And the distance between every two layers of blades is 4-8 cm.

4. A cyclone classification device according to claim 1, characterized in that: the bar-shaped support bars consist of six support cross bars which are arranged on the same horizontal plane and uniformly disperse outwards from the center, the dispersing ends of the cross bars are connected with the inner circle at the bottom of the inverted frustum-shaped screen through bolts, and the annular positioning bosses are fixedly connected with the bar-shaped support bars through bolts; the number of the supporting strips is 4-6.

5. A cyclone classification device according to claim 1, characterized in that: the cone section body include the upper cone section body and the lower cone section body, the upper portion and the lower mount of the upper cone section body are connected through the bolt, the bottom of the upper cone section body is arranged in the below of connecting plate, and is connected through the bolt with the connecting plate, the upper cone section body passes through bolt fixed connection with the lower cone section body, the bottom pipeline of the lower cone section body divide into two, one is coarse grain export pipeline, another is coarse grain circulating line, coarse grain export pipeline on install first valve, install the second valve on the coarse grain circulating line, the circulating pump is installed on the right side of second valve, the pipeline on circulating pump right side is linked together with the second feed inlet.

6. A cyclone classification device according to claim 1, characterized in that: the shell is divided into four parts, each part is fixedly connected with each other through bolts, the bottom of the shell is a fine particle outlet pipeline, and a third valve is installed at the bottom of the fine particle outlet pipeline.

7. A cyclone classification device according to claim 1, characterized in that: the four vibrating motors are completely the same in specification and model, and the telescopic supporting legs adopt double-acting hydraulic cylinders or double-acting electro-hydraulic cylinders or double-acting air cylinders.

8. A cyclone classification device according to claim 1, characterized in that: the inverted circular truncated cone-shaped screen mesh, the rotating shaft and the blade shaft sleeve are coaxial, and the driving device is a motor.

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