CN112893122A

CN112893122A - Novel double-guide air-equalizing efficient powder concentrator

Info

Publication number: CN112893122A
Application number: CN202110058775.4A
Authority: CN
Inventors: 马顺喜
Original assignee: Jiangsu Lingyang Machinery Co ltd
Current assignee: Jiangsu Lingyang Machinery Co ltd
Priority date: 2021-01-16
Filing date: 2021-01-16
Publication date: 2021-06-04

Abstract

The technology discloses a novel double-guide uniform-air efficient powder concentrator, which comprises a powder concentrator shell, and an adjustable guide blade, a fixed guide blade, a coarse powder funnel, a collecting hopper, a uniform-air guide device and a rotor which are positioned in the powder concentrator shell; the powder concentrator shell comprises an upper shell, a first frame, a second frame and a lower shell; the top of the adjustable guide blade is connected with the second frame, the bottom of the adjustable guide blade is connected with the coarse powder hopper, the top of the fixed guide blade is connected with the first frame, and the bottom of the fixed guide blade is connected with the aggregate hopper; the wind equalizing and guiding device comprises a wind equalizing partition plate, a wind equalizing guide plate and a supporting flat bar, the wind equalizing partition plate and the supporting flat bar are connected with the first frame, the wind equalizing guide plate is connected to the supporting flat bar, and the surfaces of the wind equalizing partition plate and the wind equalizing guide plate are connected with wear-resistant patches. The double-layer guide vanes are arranged, so that the grading efficiency is improved, the product fineness is adjusted more flexibly, and the product fineness adjustment range is wider; the turbulence is eliminated to the maximum extent, the energy loss is reduced, and the abrasion and the operation noise of the equipment are reduced.

Description

Novel double-guide air-equalizing efficient powder concentrator

Technical Field

The technology relates to the field of modern extrusion grinding systems, in particular to a novel double-guide uniform-air efficient powder concentrator.

Background

The powder selecting machine is an important device in a modern extrusion grinding system, and with the rapid development of modern industry, high yield, high efficiency, energy conservation and consumption reduction become the pursuit targets of innovation of the powder selecting machine, so that the development of the powder selecting equipment in China to be large-scale is promoted continuously. The powder concentrator is developed to the present, and the powder concentrator which is generally popularized and applied in the market at present is a third-generation efficient powder concentrator, namely a dynamic rotor cage powder concentrator, and the structure type is that a circle of fixed guide blades are arranged on the periphery of a rotor cage. The tangential angle of the guide vanes is generally fixed and unchanged, and the fineness of the finished product is realized only by adjusting the rotating speed of the rotor. For a small rotor, the balance is easy to control, and in actual use, the running rotating speed can be adjusted to be fast so as to realize the control of the fineness of a finished product. However, for a large rotor, the balance is difficult to control, the rotating torque is large, the rotating speed of the rotor cannot be adjusted fast at will, and in many cases, the rotating speed of the rotor is adjusted to the upper limit of an allowable value and cannot be adjusted to the required product fineness, so that the product fineness is controlled by adjusting the rotating speed of the rotor to be limited to a great extent. For the high fine powder industry, the fineness of the finished product is very fine, the existing powder concentrator is difficult to be qualified, and a fineness adjusting device needs to be further improved from the structure.

In addition, for a large powder concentrator, the transmission position is mostly positioned right above the shell of the powder concentrator, so that the air outlet can only be arranged on the lateral upper side. This results in uneven powder discharge from the rotor and an eccentric phenomenon! The position close to the air outlet of the upper shell has stronger suction force to the rotor, and the suction force to the rotor at the far end is relatively weaker. The more significant the eccentricity and turbulence generated as the size of the rotor of the powder concentrator increases, on the one hand, the additional energy loss is caused, and on the other hand, the turbulence causes vibration and noise to be generated in the equipment, and the abrasion is increased. Therefore, in order to meet the market demand, a brand-new high-efficiency powder concentrator needs to be developed.

Disclosure of Invention

The technical problem to be solved by the technology is to provide a novel double-guide uniform-air efficient powder concentrator aiming at the defects of the prior art, the novel double-guide uniform-air efficient powder concentrator is provided with double layers of guide vanes, the grading efficiency is improved, the product fineness is adjusted more flexibly, and the product fineness adjustment range is wider; the turbulence is eliminated to the maximum extent, the energy loss is reduced, and the abrasion and the operation noise of the equipment are reduced.

In order to achieve the technical purpose, the technical scheme adopted by the technology is as follows:

a novel double-guide uniform-air efficient powder concentrator comprises a powder concentrator shell, and an adjustable guide blade, a fixed guide blade, a coarse powder hopper, a collecting hopper, a uniform-air guide device and a rotor which are positioned in the powder concentrator shell;

the powder concentrator shell comprises an upper shell, a first frame, a second frame and a lower shell, wherein the upper shell is connected with the first frame, the first frame is connected with the second frame, and the second frame is connected with the lower shell;

the top of the adjustable guide blade is connected with the lower flange plane of the frame II, the bottom of the adjustable guide blade is connected with the inner wall of the coarse powder funnel, the top of the fixed guide blade is connected with the lower flange plane of the frame I, the bottom of the fixed guide blade is connected with the inner wall of the material collecting hopper, the fixed guide blade is positioned on the inner side of the adjustable guide blade, the rotor is positioned on the inner side of the fixed guide blade, the material collecting hopper is positioned on the inner side of the coarse powder funnel, and a discharge port of the material collecting hopper extends out from the inner side of the;

the adjustable guide vane is provided with an angle adjusting structure for adjusting an angle of the guide vane on the adjustable guide vane;

the wind equalizing and guiding device is arranged on an internal air channel of the first frame, and comprises a wind equalizing partition plate, a wind equalizing guide plate, a supporting flat bar and a wear-resistant patch, wherein two ends of the wind equalizing partition plate are fixedly connected with the first frame, the supporting flat bar is fixedly connected with the first frame, the wind equalizing guide plate is fixedly connected onto the supporting flat bar and is multiple, the wind equalizing partition plate and the wind equalizing guide plate are sequentially arranged on the internal air channel of the first frame at intervals so as to separate a ventilation section of the internal air channel of the first frame into a plurality of air chambers, and the main stream of the wind equalizing partition plate and the wind equalizing guide plate is fixedly connected with the wear-resistant patch on the windward surface.

As a further improved technical scheme of the technology, the lower flange plane of the upper shell is fixedly connected with the upper flange plane of the first frame through a first bolt, the lower flange plane of the first frame is connected with the upper flange plane of the second frame through a first bolt, and the lower flange plane of the second frame is connected with the upper flange plane of the lower shell through a first bolt.

As a further improved technical scheme of the technology, the adjustable guide vane comprises a guide vane I, a shaft I, an upper flange I and a lower flange I; the guide vane I is fixedly connected to the first shaft I, the upper end and the lower end of the first shaft I are respectively inserted into the round hole of the first upper flange and the round hole of the first lower flange, and the upper end and the lower end of the first shaft I can freely rotate in the round holes; the upper flange I is fixedly connected to the lower flange plane of the frame II, the upper end of the shaft I penetrates through the lower flange plane of the frame II and then is connected with the angle adjusting structure, and the shaft I is rotatably connected with the lower flange plane of the frame II; the lower end of the first shaft is inserted into a round hole of the lower flange and then is connected with the elastic pin in a positioning mode, and the first lower flange is fixedly connected with the inner wall of the coarse powder hopper through the first support.

As a further improved technical scheme of the technology, the first guide vane is an arc-shaped vane; the upper flange I is fixedly connected to the lower flange plane of the frame II through a bolt II; the first shaft is in plane rotation connection with a lower flange of the second frame through a self-lubricating bearing; the lower flange I is fixedly connected with the bracket I in a welding mode; the first support is fixedly connected with the inner wall of the coarse powder funnel through a third bolt.

As the further improved technical scheme of the technology, the angle adjusting structure comprises an electric actuator, a guide ring, a guide wheel, a guide rod, a support, a supporting block and a bolt for reaming holes; the support is fixedly connected to the outer wall of the lower shell, and the guide wheels and the supporting blocks are fixedly connected to the support; the guide rings are positioned on the support blocks and can freely slide on the upper surfaces of the support blocks; the guide wheels are positioned on the outer side of the guide ring in the circumferential direction and used for limiting the guide ring; one end of the guide rod is connected with the upper end of the first shaft, the other end of the guide rod is provided with a waist-shaped hole, the bolt for the hinging hole penetrates through the waist-shaped hole and then is connected with the guide ring, and the guide rod can freely slide along the waist-shaped hole by taking the bolt for the hinging hole as an axis; the electric actuator is connected to the support, and a cylinder arm of the electric actuator is rotatably connected with the guide ring.

As a further improved technical scheme of the technology, the support is fixedly connected to the outer wall of the lower shell in a welding manner, the 6 guide wheels and the 6 support blocks are all fixedly connected to the support through bolts, the 6 support blocks and the 6 guide wheels are uniformly distributed in the circumferential direction of the support, the guide ring is located on the 6 support blocks, and the 6 guide wheels are located on the outer side of the guide ring in the circumferential direction; one end of the guide rod is provided with a square hole, and after the square hole is matched and spliced with the square shaft at the upper end of the first shaft, the square hole is tightly connected with the square shaft at the upper end of the first shaft through a fifth bolt; the supporting block is made of polytetrafluoroethylene, and lubricating ester is coated on the upper surface of the supporting block, which is in contact with the guide ring; the number of the electric actuators is 2.

As a further improved technical scheme of the technology, the fixed guide vane comprises a guide vane II, a shaft II, an upper flange II and a lower flange II; the guide vane II is fixedly connected to the shaft II at a fixed angle, the upper end and the lower end of the shaft II are respectively inserted into the round holes of the upper flange II and the lower flange II, and the upper end and the lower end of the shaft II are fixedly connected with the round holes; the upper flange II is fixedly connected to the lower flange plane of the frame I, and the lower flange II is fixedly connected with the inner wall of the aggregate bin through the support II.

As a further improved technical scheme of the technology, the guide vane II is a straight vane; the upper end and the lower end of the second shaft are fixedly connected with the round holes in a welding mode, the second upper flange is formed by a plurality of upper flange blocks, the upper flange blocks are fixedly connected onto the lower flange plane of the first frame through the sixth bolts and the gaskets, the second lower flange is formed by splicing a plurality of lower flange blocks sequentially through the connecting plates, the second lower flange is fixedly connected with the second support in a welding mode, and the second support is fixedly connected with the inner wall of the collecting hopper through the seventh bolts.

As a further improved technical scheme of the technology, the two ends of the air-equalizing partition plate are fixedly connected with the first frame in a welding mode, the first supporting flat bar is fixedly connected with the first frame in a welding mode, the air-equalizing guide plate is hung on the first supporting flat bar through the hanging lugs, the air-equalizing guide plate is fixedly connected with the first supporting flat bar through bolts, and wear-resistant patches are pasted on the main stream windward surfaces of the air-equalizing partition plate and the air-equalizing guide plate.

As a further improved technical scheme of the technology, the rotor is formed by assembling and welding a hollow shaft, a cone, an upper flange III, a plurality of middle flanges, a lower flange III and a supporting tube; the rotor is connected with a rotor combined blade, the rotor combined blade is connected between an upper flange III and a middle flange, between a middle flange and between the middle flange and a lower flange III, and pin holes in an end plate of the rotor combined blade are connected with pin holes in the upper flange III, pin holes in the middle flange and pin holes in the lower flange III through pin shafts; the rotor blades connected to the rotor combined blades on the upper half part of the rotor adopt UP composite plates, and the rotor blades connected to the rotor combined blades on the lower half part of the rotor adopt HD wear-resistant plates; the hollow shaft of the rotor is connected with the main shaft, the main shaft is connected with a transmission device positioned above the powder concentrator shell, the transmission device comprises a speed reducer and a motor, and the motor is connected with the main shaft through the speed reducer.

The beneficial effect of this technique does:

1. according to the technology, double-layer guide blades (outer-layer adjustable guide blades and inner-layer fixed guide blades) are arranged in the powder concentrator, a first-level gravity classification area is added, and classification efficiency is improved. The tangential angle of the first guide blade on the outer ring can be flexibly adjusted, and the product fineness can be adjusted by combining with the rotating speed of the rotor, so that the product fineness adjustment method is more flexible, and the product fineness adjustment range is wider.

2. The technology can simultaneously screen two kinds of finished fine powder with different fineness requirements in a grading way at one time, thereby greatly improving the powder selection efficiency of the powder selecting machine;

3. according to the technology, the air-equalizing partition plate and the air-equalizing guide plate are arranged on the air channel inside the frame I, so that turbulence is eliminated to the maximum extent, energy loss is reduced, and abrasion and operation noise of equipment are reduced;

4. according to the technology, different wear-resistant materials are selected to manufacture the rotor blade according to the material wear probability of different parts, the overall average service life of the rotor is prolonged to the maximum extent, and the manufacturing cost and the use cost of the rotor are greatly reduced.

Drawings

Fig. 1 is a schematic structural diagram of the novel double-guide air-equalizing efficient powder concentrator of this embodiment.

Fig. 2 is a sectional view taken along line a-a in fig. 1.

Fig. 3 is a sectional view taken along line B-B in fig. 1.

FIG. 4 is a sectional view of a part of the structure of the adjustable guide vane and the fixed guide vane of the present embodiment.

Fig. 5 is a cross-sectional view of C-C in fig. 1.

Fig. 6 is a cross-sectional view of 1-1 in fig. 5.

Fig. 7 is a schematic structural view of the rotor according to the present embodiment.

Fig. 8 is a schematic structural view of the rotor blade assembly of the present embodiment.

Fig. 9 is a sectional view of the structure of the rotor combined blade and the upper flange three connection according to the embodiment.

FIG. 10 is a sectional view of the rotor blade assembly of this embodiment connected to a mid-flange.

Fig. 11 is a sectional view of the structure of the rotor blade assembly of this embodiment connected to the lower flange three.

Detailed Description

Embodiments of the present technology are further described below with reference to the accompanying drawings:

as shown in fig. 1, a novel double-guide uniform-air efficient powder concentrator is installed on a vertical mill shell (mill body 14), and comprises a powder concentrator shell, an outer-layer adjustable guide blade 7, an inner-layer fixed guide blade 8, a coarse powder funnel 5, a collecting hopper 6, a uniform-air guide device, a rotor 9 and the like, which are located in the powder concentrator shell. The materials extruded and ground by the grinding roller and the grinding disc enter the powder selecting area of the powder selecting machine from bottom to top through the grinding body under the high-pressure blowing of the blowing ring and the negative-pressure suction of the system fan.

As shown in fig. 1, the powder concentrator casing includes an upper casing 1, a first frame 2, a second frame 3 and a lower casing 4, a lower flange plane of the upper casing 1 is fixedly connected with an upper flange plane of the first frame 2 through a first bolt, a lower flange plane of the first frame 2 is connected with an upper flange plane of the second frame 3 through a first bolt, and a lower flange plane of the second frame 3 is connected with an upper flange plane of the lower casing 4 through a first bolt.

The dusty airflow firstly enters a gravity classification area 1 (namely a powder selection area 1) between the dusty airflow and a fixed guide blade 8 of an inner layer along an adjustable guide blade 7 of the outer layer (as shown in an A-A view of fig. 2) and a set tangential angle is adjusted according to requirements, coarse powder particles lose most of kinetic energy through refraction and collision, cannot pass through the fixed guide blade 8, fall into a coarse powder hopper 5 under the action of gravity, and return to a grinding disc for grinding again; qualified fine powder 1 and fine powder 2 pass through a fixed guide vane 8 and enter a centrifugal classification area 2 (namely a powder selection area 2) between the fixed guide vane 8 and a rotor 9, and the fine powder 1 with relatively large particle size cannot pass through the rotor 9 and fall into a collecting hopper 6 to be conveyed and stored as finished fine powder 1; and fine powder 2 with smaller particle size enters the rotor 9 through the rotor 9 and is collected by a system dust collector and conveyed to be put in storage from an air outlet of the powder concentrator as finished fine powder 2, so that the function of screening two kinds of finished fine powder in multiple stages is realized.

As shown in fig. 1, the top of the adjustable guide vane 7 is connected with the lower flange plane of the frame two 3, the bottom of the adjustable guide vane is connected with the inner wall of the coarse powder funnel 5, the top of the fixed guide vane 8 is connected with the lower flange plane of the frame one 2, the bottom of the fixed guide vane is connected with the inner wall of the aggregate bin 6, the fixed guide vane 8 is located inside the adjustable guide vane 7, the rotor 9 is located inside the fixed guide vane 8, the aggregate bin 6 is located inside the coarse powder funnel 5, and the discharge hole of the aggregate bin 6 extends out from the inner side of the coarse powder funnel 5 to the outer side.

The adjustable guide vane 7 is provided with an angle adjusting structure for adjusting an angle of the guide vane thereon;

in this embodiment, as shown in fig. 2, 3 and 4, the adjustable guide vane 7 includes a first guide vane, a first shaft 17, a first upper flange 15 and a first lower flange 31; the first guide blade is fastened on the first shaft 17 through a connecting piece, the upper end and the lower end of the first shaft 17 are respectively inserted into the round hole of the first upper flange 15 and the round hole of the first lower flange 31, and the upper end and the lower end of the first shaft 17 can freely and flexibly rotate in the round holes; the upper flange I15 is fixedly connected to the lower flange plane of the frame II 3 through a bolt II 29, the upper end of the shaft I17 penetrates through the lower flange plane of the frame II 3 and then is connected with the angle adjusting structure, the shaft I17 is rotatably connected with the lower flange plane of the frame II 3 through a self-lubricating bearing 25, and the self-lubricating bearing 25 can ensure that the shaft I17 can flexibly rotate around the fixed axis; the lower flange I31 forms a whole circular ring with the guide vane in a circle, after the lower end of the shaft I17 is inserted into a circular hole of the lower flange I31, the lower end is firmly positioned by an elastic pin 32, and after the guide vane I is installed in place, the lower flange I31 is welded with the support I33; the first bracket 33 is fastened on the inner wall of the coarse powder funnel 5 through a third bolt. Wherein the first guide vane is an arc vane.

In the present embodiment, as shown in fig. 3 and 4, the angle adjusting structure includes an electric actuator 19, a guide ring 20, a guide wheel 22, a guide rod 21, a support 30, a support block 23, and a bolt 24 for reaming; the support 30 is welded on the outer wall of the lower shell 4, 6 guide wheels 22 and 6 support blocks 23 are all fastened on the support 30 through bolts, and the 6

support blocks

23 and 6 guide wheels 22 are uniformly distributed in the circumferential direction of the support 30; the guide ring 20 is positioned on the 6 support blocks 23, namely the 6 support blocks 23 are flatly supported below the guide ring 20 and kept on the same horizontal plane, the support blocks 23 are made of polytetrafluoroethylene, and lubricating grease is coated on the upper surface in contact with the guide ring 20, so that the guide ring 20 can freely slide on the upper surface of the support blocks 23; the 6 guide wheels 22 are positioned on the outer side of the guide ring 20 in the circumferential direction and used for limiting the guide ring 20, so that the guide ring 20 can only rotate in the circumferential direction but cannot translate; the guide rod 21 is used for connecting the guide ring 20 and the first shaft 17, one end of the guide rod 21 is provided with a square hole, the square hole is matched and sleeved with the square shaft at the upper end of the first shaft 17, and after the fifth bolt 26 is screwed, the square hole can tightly clamp the first shaft 17; the other end of the guide rod 21 is provided with a waist-shaped hole, the bolt 24 for reaming penetrates through the waist-shaped hole and then is screwed on the guide ring 20, and the guide rod 21 can freely slide along the waist-shaped hole by taking the bolt 24 for reaming as an axis; 2 electric actuators 19 are all connected to the support 30, and the cylinder arm of the electric actuator 19 is rotatably connected to the guide ring 20.

When the angle of the first guide vane is adjusted, 2 electric actuators 19 synchronously act to lift out of the cylinder arm in the same direction to push the guide ring 20 to act, the guide ring 20 is restricted by 6 guide wheels 22 and 6 support blocks 23 and can only rotate in the same plane along the circumferential direction, the rotating torque is transmitted to the first shaft 17 of the first guide vane through the guide rod 21, the first shaft 17 rotates for a certain angle, and the first guide vane correspondingly rotates for a certain angle, so that the tangential angle of the first guide vane can be flexibly and easily adjusted. When the device is debugged, the corresponding relation between the rotation angle of the guide vane and the extension length of the cylinder arm of the electric actuator 19 is found, scale marks are marked on the shell, and the adjustment angle of the vane can be easily known from the scale marks outside the device.

In the present embodiment, as shown in fig. 3 and 4, the fixed guide vane 8 is a segmented structure, and includes a second guide vane, a second shaft 18, a second upper flange 16 and a second lower flange; and the second guide blade is a straight blade. The upper flange II 16 and the lower flange II are equally divided into 12-16 blocks according to the specification size, namely the upper flange II 16 consists of 12-16 upper flange blocks, and the 12-16 upper flange blocks are suspended and fixed on the lower flange plane of the frame I2 through a bolt six 27 and a gasket 28; the second lower flange is formed by splicing 12-16 second lower flange sub-blocks sequentially through connecting plates, the second guide blade is fixedly connected to the second shaft 18 in a fixed angle mode, and the upper end and the lower end of the second shaft 18 are inserted into circular holes of the second upper flange sub-block and the second lower flange sub-block respectively and are welded firmly, so that the second guide blade cannot rotate. And after the second guide vane is installed in place, the second lower flange is fixedly spliced into a whole by adopting a connecting plate, the second lower flange is welded with the second bracket, and the second bracket is fastened on the inner wall of the aggregate bin 6 through a seventh bolt.

The particle size and the yield of the finished product fine powder 1 can be adjusted and controlled by adjusting the tangential angle of the first guide vane and the air quantity of the system; the particle size and the yield of the finished product fine powder 2 can be adjusted and controlled by adjusting the rotating speed of the rotor 9.

The transmission position (the speed reducer 12 and the motor 13) is arranged right above the powder concentrator, so that the air outlet can be arranged only on the side upper part of the upper shell 1 of the powder concentrator. This results in uneven discharge of powder from the rotor 9 and eccentricity. The position close to the air outlet of the upper shell 1 has stronger suction force to the rotor 9, and the suction force to the rotor 9 at the far end is relatively weaker. The more significant this eccentricity and turbulence is created and the more severe the energy losses are caused as the size of the mill rotor 9 increases.

In order to effectively eliminate eccentricity and reduce turbulence, an air-equalizing guide device (as shown in fig. 5 and 6) is arranged on the air channel inside the frame I2 above the powder concentrator rotor 9. The wind flow guiding device that equalizes sets up on the inside wind channel of frame 2, the wind flow guiding device that equalizes includes wind baffle 34, wind guide plate 35, supporting ribbon 37 and wear-resisting paster 36, the both ends of wind baffle 34 and frame 2 pass through welded mode fixed connection, supporting ribbon 37 and frame 2 pass through welded mode fixed connection, wind guide plate 35 hangs on supporting ribbon 37 through hangers 38, and wind guide plate 35 and supporting ribbon 37 fix through eight 39 of 4 bolts, can very conveniently take down the change. The air-equalizing partition plates 34 and the air-equalizing guide plates 35 are sequentially arranged on the internal air channel of the frame I2 at intervals so as to divide the ventilation section of the internal air channel of the frame I2 into a plurality of air chambers, and the main stream windward surfaces of the air-equalizing partition plates 34 and the air-equalizing guide plates 35 are pasted with wear-resistant patches 36, so that abrasion can be effectively prevented.

The ventilation section is divided into a plurality of air chambers by the air-equalizing baffle plates 34 and the air-equalizing guide plates 35, the air-equalizing guide plates 35 smoothly guide the rotating vortex generated by the rotor 9 into vertical upward linear flow, thereby effectively eliminating turbulent flow in the machine body, reducing useless unnecessary energy loss and reducing the abrasion and operation noise of the equipment.

In this embodiment, as shown in fig. 7, the rotor 9 is formed by assembling and welding a hollow shaft 40, a cone 45, an upper flange three 41, a plurality of middle flanges 42, a lower flange three 43 and a support pipe; as shown in fig. 8, the rotor combined blade 10 is installed between the flanges of the outer ring of the rotor 9 and is connected in a positioning manner through a pin shaft 48 to form a rotor cage; as shown in fig. 8 to 11, that is, the rotor combined blade 10 is connected between the upper flange three 41 and the middle flange 42, between the middle flange 42 and the other middle flange 42, and between the middle flange 42 and the lower flange three 43, pin holes 44 on an end plate 46 of the rotor combined blade 10 are connected with pin holes 44 on the upper flange three 41, pin holes 44 on the middle flange 42, and pin holes 44 on the lower flange three 43 through pin shafts 48. The rotor 9 is connected with a main shaft 11, the main shaft 11 is connected with a transmission device positioned above the powder concentrator shell, the transmission device comprises a speed reducer 12 and a motor 13, and the motor 13 is connected with the main shaft 11 through the speed reducer 12. The rotor cage is driven by the main shaft 11 to rotate by taking the main shaft 11 as an axis, the rotor combined blade 10 plays a main role in the classification process of the powder concentrator on the powder materials, and the rotor cage is in full contact with airflow and material flow, so that the rotor cage is easy to wear.

Rotor combination blade 10 includes two end plates 46 and a plurality of rotor blade 47 of fixed connection between two end plates 46, and rotor blade 47 chooses the wear-resisting material of different materials for use according to different position wearing probability, and first half wearing probability of rotor 9 is higher, consequently, connects rotor blade 47 of first half of rotor 9 chooses the better UP composite sheet of wearability for use, preparation rotor combination blade 10, and rotor 9 lower half degree of wear can be little relatively, consequently, connects rotor blade 47 of rotor 9 lower half chooses the HD antifriction plate for use, preparation rotor combination blade 10. The non-homogeneous wear-resistant rotor 9 can prolong the overall average service life of the rotor 9 to the maximum extent, and the manufacturing cost and the use cost of the rotor 9 are greatly reduced. The rotor combined blade 10 is installed by the pin shaft 48, and is very convenient and fast to disassemble and replace.

The technical scope of the present invention includes, but is not limited to, the above embodiments, the technical scope of the present invention is defined by the claims, and any replacement, modification, and improvement that can be easily conceived by those skilled in the art are included in the technical scope of the present invention.

Claims

1. The utility model provides a novel high-efficient selection powder machine of equal wind of two leads which characterized in that: comprises a powder concentrator shell, and an adjustable guide vane (7), a fixed guide vane (8), a coarse powder funnel (5), a collecting hopper (6), an air-equalizing guide device and a rotor (9) which are positioned in the powder concentrator shell;

the powder concentrator shell comprises an upper shell (1), a first frame (2), a second frame (3) and a lower shell (4), wherein the upper shell (1) is connected with the first frame (2), the first frame (2) is connected with the second frame (3), and the second frame (3) is connected with the lower shell (4);

the top of the adjustable guide blade (7) is connected with the lower flange plane of the frame II (3), the bottom of the adjustable guide blade is connected with the inner wall of the coarse powder funnel (5), the top of the fixed guide blade (8) is connected with the lower flange plane of the frame I (2), the bottom of the fixed guide blade is connected with the inner wall of the aggregate hopper (6), the fixed guide blade (8) is positioned on the inner side of the adjustable guide blade (7), the rotor (9) is positioned on the inner side of the fixed guide blade (8), the aggregate hopper (6) is positioned on the inner side of the coarse powder funnel (5), and a discharge hole of the aggregate hopper (6) extends out of the inner side of the coarse powder funnel (5);

the adjustable guide vane (7) is provided with an angle adjusting structure for adjusting an angle of the guide vane thereon;

the utility model discloses a wind turbine generator, including frame (2), even wind guiding device sets up on the inside wind channel of frame (2), even wind guiding device includes even wind baffle (34), even wind guide plate (35), supporting ribbon (37) and wear-resisting paster (36), the both ends and frame (2) fixed connection of even wind baffle (34), supporting ribbon (37) and frame (2) fixed connection, even wind guide plate (35) fixed connection is on supporting ribbon (37), and is a plurality of thereby even wind baffle (34) and even wind guide plate (35) interval arrangement are in proper order separated for a plurality of wind chambers with the ventilation section in frame (2) inside wind channel on the inside wind channel of frame (2), the mainstream windward surface fixedly connected with wear-resisting paster (36) of even wind baffle (34) and even wind guide plate (35).

2. The novel double-guide air-equalizing efficient powder concentrator according to claim 1, characterized in that: the lower flange plane of the upper shell (1) is fixedly connected with the upper flange plane of the first frame (2) through a first bolt, the lower flange plane of the first frame (2) is connected with the upper flange plane of the second frame (3) through a first bolt, and the lower flange plane of the second frame (3) is connected with the upper flange plane of the lower shell (4) through a first bolt.

3. The novel double-guide air-equalizing efficient powder concentrator according to claim 1, characterized in that: the adjustable guide vane (7) comprises a first guide vane, a first shaft (17), a first upper flange (15) and a first lower flange (31); the guide vane I is fixedly connected to the shaft I (17), the upper end and the lower end of the shaft I (17) are respectively inserted into a round hole of the upper flange I (15) and a round hole of the lower flange I (31), and the upper end and the lower end of the shaft I (17) can freely rotate in the round holes; the upper flange I (15) is fixedly connected to the lower flange plane of the frame II (3), the upper end of the shaft I (17) penetrates through the lower flange plane of the frame II (3) and then is connected with the angle adjusting structure, and the shaft I (17) is rotatably connected with the lower flange plane of the frame II (3); the lower end of the first shaft (17) is inserted into a round hole of a first lower flange (31) and then is connected with an elastic pin (32) in a positioning mode, and the first lower flange (31) is fixedly connected with the inner wall of the coarse powder funnel (5) through a first support (33).

4. The novel double-guide air-equalizing efficient powder concentrator according to claim 3, characterized in that: the first guide blade is an arc-shaped blade; the upper flange I (15) is fixedly connected to the lower flange plane of the frame II (3) through a bolt II (29); the first shaft (17) is in plane rotation connection with a lower flange of the second frame (3) through a self-lubricating bearing (25); the lower flange I (31) is fixedly connected with the support I (33) in a welding mode; the first support (33) is fixedly connected with the inner wall of the coarse powder funnel (5) through a third bolt.

5. The novel double-guide air-equalizing efficient powder concentrator as claimed in claim 4, wherein: the angle adjusting structure comprises an electric actuator (19), a guide ring (20), a guide wheel (22), a guide rod (21), a support (30), a support block (23) and a bolt (24) for reaming; the support (30) is fixedly connected to the outer wall of the lower shell (4), and the guide wheels (22) and the supporting blocks (23) are fixedly connected to the support (30); the guide rings (20) are positioned on the plurality of supporting blocks (23), and the guide rings (20) can freely slide on the upper surfaces of the supporting blocks (23); the guide wheels (22) are positioned on the outer side of the guide ring (20) in the circumferential direction and used for limiting the guide ring (20); one end of the guide rod (21) is connected with the upper end of the first shaft (17), the other end of the guide rod (21) is provided with a waist-shaped hole, the bolt (24) for hinging holes penetrates through the waist-shaped hole and then is connected with the guide ring (20), and the guide rod (21) can freely slide along the waist-shaped hole by taking the bolt (24) for hinging holes as an axis; the electric actuator (19) is connected to the support (30), and a cylinder arm of the electric actuator (19) is rotatably connected with the guide ring (20).

6. The novel double-guide air-equalizing efficient powder concentrator as claimed in claim 5, wherein: the support (30) is fixedly connected to the outer wall of the lower shell (4) in a welding mode, the 6 guide wheels (22) and the 6 support blocks (23) are fixedly connected to the support (30) through bolts, the 6 support blocks (23) and the 6 guide wheels (22) are uniformly distributed in the circumferential direction of the support (30), the guide ring (20) is located on the 6 support blocks (23), and the 6 guide wheels (22) are located on the outer side of the guide ring (20) in the circumferential direction; one end of the guide rod (21) is provided with a square hole, and after the square hole is matched and spliced with the square shaft at the upper end of the first shaft (17), the square hole is tightly connected with the square shaft at the upper end of the first shaft (17) through a fifth bolt (26); the supporting block (23) is made of polytetrafluoroethylene, and lubricating ester is coated on the upper surface of the supporting block, which is in contact with the guide ring (20); the number of the electric actuators (19) is 2.

7. The novel double-guide air-equalizing efficient powder concentrator according to claim 1, characterized in that: the fixed guide vane (8) comprises a second guide vane, a second shaft (18), a second upper flange (16) and a second lower flange; the guide vane II is fixedly connected to a second shaft (18) at a fixed angle, the upper end and the lower end of the second shaft (18) are respectively inserted into the round holes of the second upper flange (16) and the second lower flange, and the upper end and the lower end of the second shaft (18) are fixedly connected with the round holes; the upper flange II (16) is fixedly connected to the lower flange plane of the frame I (2), and the lower flange II is fixedly connected with the inner wall of the aggregate bin (6) through the support II.

8. The novel double-guide air-equalizing efficient powder concentrator as claimed in claim 7, wherein: the guide vane II is a straight vane; the upper end and the lower end of the second shaft (18) are fixedly connected with the round holes in a welding mode, the second upper flange (16) is formed by a plurality of upper flange blocks which are fixedly connected onto a lower flange plane of the first frame (2) through six bolts (27) and gaskets (28), the second lower flange is formed by splicing a plurality of lower flange blocks sequentially through connecting plates, the second lower flange is fixedly connected with the second support in a welding mode, and the second support is fixedly connected with the inner wall of the collecting hopper (6) through seven bolts.

9. The novel double-guide air-equalizing efficient powder concentrator according to claim 1, characterized in that: the both ends of wind-equalizing baffle (34) and frame (2) are through welding mode fixed connection, supporting ribbon (37) and frame (2) are through welding mode fixed connection, wind-equalizing guide plate (35) hang on supporting ribbon (37) through hangers (38), and wind-equalizing guide plate (35) and supporting ribbon (37) are through eight (39) fixed connection of bolt, the mainstream windward surface of wind-equalizing baffle (34) and wind-equalizing guide plate (35) is pasted and is had wear-resisting paster (36).

10. The novel double-guide air-equalizing efficient powder concentrator according to claim 1, characterized in that: the rotor (9) is formed by assembling and welding a hollow shaft (40), a cone (45), an upper flange III (41), a plurality of middle flanges (42), a lower flange III (43) and a supporting pipe; the rotor (9) is connected with a rotor combined blade (10), the rotor combined blade (10) is connected between an upper flange III (41) and a middle flange (42), between the middle flange (42) and between the middle flange (42) and a lower flange III (43), and pin holes (44) in an end plate (46) of the rotor combined blade (10) are connected with pin holes (44) in the upper flange III (41), pin holes (44) in the middle flange (42) and pin holes (44) in the lower flange III (43) through pin shafts (48); the rotor blades (47) connected to the rotor combined blades (10) on the upper half part of the rotor (9) adopt UP composite plates, and the rotor blades (47) connected to the rotor combined blades (10) on the lower half part of the rotor (9) adopt HD wear-resistant plates; the hollow shaft (40) of the rotor (9) is connected with the main shaft (11), the main shaft (11) is connected with a transmission device positioned above the powder concentrator shell, the transmission device comprises a speed reducer (12) and a motor (13), and the motor (13) is connected with the main shaft (11) through the speed reducer (12).