CN211329721U - Superfine powder selecting machine - Google Patents
Superfine powder selecting machine Download PDFInfo
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- CN211329721U CN211329721U CN201922240819.6U CN201922240819U CN211329721U CN 211329721 U CN211329721 U CN 211329721U CN 201922240819 U CN201922240819 U CN 201922240819U CN 211329721 U CN211329721 U CN 211329721U
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Abstract
The utility model discloses an ultrafine powder concentrator, which comprises a shell, a grading rotor, a driving device, a transmission shaft, the grading rotor comprises a wind guide blade, the ultrafine powder concentrator also comprises a powder collecting device, a feeding and distributing device, a wind guide cone, a flushing and dispersing device, a coarse powder collecting device and a wind inlet pipe, the grading rotor is arranged in the middle of the transmission shaft, the powder collecting device is arranged below the grading rotor, the powder collecting device is arranged in the shell, the feeding and distributing device is arranged on the lower end part of the transmission shaft, the flushing and dispersing device comprises a wind inlet pipe, the upper part of the flushing and dispersing device is arranged on the lower end part of the shell, the lower part of the flushing and dispersing device is connected with the upper part of the coarse powder collecting device, the upper end of the wind inlet pipe passes through the coarse powder collecting device and is arranged in the shell, the upper end of the wind inlet pipe is arranged below the wind guide, the lower end part of the air inlet feeding pipe is provided with a feeding hole, and the upper part of the shell is provided with a plurality of air outlets.
Description
Technical Field
The utility model relates to an ultrafine powder grading plant, in particular to an ultrafine powder selecting machine.
Background
The technical research of the ultrafine powder has become a new hot subject, and according to the current situation and the national conditions, the powder with the particle size of less than 30um is called the ultrafine powder. The superfine powder has the factors of large surface energy, surface atom number, specific surface area and the like, so that the surface tension of the superfine powder is rapidly increased along with the reduction of the particle size, and the special properties cause that the light, sensitivity, heat, magnetism, inductive characteristics, surface stability and the like of the superfine powder are different from those of common powder, so that the superfine powder has special properties and is widely applied to the fields of automobiles, materials, metallurgy, chemical engineering, compounding, bioengineering, medicine and the like. In particular, in recent years, research and application of ultrafine powder have been rapidly developed, and the ultrafine powder has been applied to almost all high, fine, sharp, and advanced disciplines and fields, and it can be said that the ultrafine powder material has penetrated all industrial fields and high-tech fields. The superfine powder concentrator is one of important devices in the powder preparation industry, and various types of powder concentrators in the current market can sort superfine particles of several microns, but the grading precision and the grading efficiency are not high, the finished product quantity is only 6 tons/hour, and the powder concentrator which can be really used in industrial production at present has high grading precision, large processing capacity and high finished product yield is yet to be developed.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that an ultra-fine powder selection machine is provided, this ultra-fine powder selection machine not only grading precision is high, and grading efficiency is high, output is big moreover.
In order to solve the technical problem, the utility model relates to an ultrafine powder concentrator, contain the casing, the hierarchical rotor, a drive device, the transmission shaft, the hierarchical rotor includes wind-guiding blade, still contain powder collection device, pay-off feed divider, the wind-guiding awl, wash dispersion devices, middlings collection device and air inlet pipe, drive device sets up on the top of casing, the upper end of transmission shaft is located the outside at the casing top, and link to each other with drive device, the upper end of transmission shaft constitutes the rotation with the top of casing and is connected, the lower extreme of transmission shaft is located the inside of casing, the lower extreme of transmission shaft constitutes the rotation with the support and is connected, the support sets up the inside at the casing, the hierarchical rotor sets up the middle part at the transmission shaft, powder collection device is located the below of hierarchical rotor, powder collection device sets up the inside the casing, pay-off feed divider, the wind-guiding awl is located the below of transmission shaft lower extreme, the wind-guiding awl passes through branch setting in the casing, it includes the air-supply line to wash dispersion devices, the upper portion that washes dispersion devices sets up on the lower extreme of casing, the lower part that washes dispersion devices links to each other with middlings collection device's upper portion, the upper end of air inlet pipe is passed middlings collection device and is washed dispersion devices and be located inside the casing, and the upper end of air inlet pipe is located the below of wind-guiding awl, the lower extreme of air inlet pipe is located middlings collection device's the outside, be equipped with the feed inlet under the air inlet.
The powder collecting device is of a cone structure, the cone comprises a large opening at the upper end and a small opening at the lower end, the large opening is positioned below the lower end of the grading rotor, a discharging pipe is arranged on the small opening, a first flange is arranged on the discharging pipe, and a circumferential groove is arranged on the lower surface of the first flange; the feeding and distributing device comprises a bottom plate, an aggregate cylinder body and a plurality of guide pipes, wherein a through hole is formed in the center of the bottom plate, a shaft sleeve is arranged on the through hole, the aggregate cylinder body comprises an upper end, a peripheral surface and a lower end, the upper end and the lower end of the aggregate cylinder body are open, the lower end of the aggregate cylinder body is arranged in the center of the bottom plate, a plurality of guide pipe uniform distribution devices are arranged on the peripheral surface of the aggregate cylinder body, one end, connected with the aggregate cylinder body, of each guide pipe is communicated with the aggregate cylinder body, the other end of each guide pipe is provided with a guide plate, each guide plate is of an angle steel structure, the upper end of the aggregate cylinder body is provided with a second flange, a circumferential convex ring is arranged on the upper surface of the second flange, the shaft sleeve is arranged on a transmission shaft.
The number of the material guide pipes uniformly distributed on the circumferential surface of the aggregate cylinder body is 5-10.
The flushing and dispersing device comprises a snail shell, a plurality of flushing and dispersing blades, a plurality of cleaning cones and a landing assistant cone, wherein the snail shell comprises a peripheral surface, a top part and a bottom surface, a first air inlet pipe and a second air inlet pipe are respectively arranged on the peripheral surface of the snail shell, the first air inlet pipe and the second air inlet pipe are symmetrical relative to the central line of the snail shell, an upper through hole is arranged on the top surface, a lower through hole is arranged on the bottom surface, an upper feeding pipe is arranged on the upper through hole on the top surface, the center of the upper through hole is superposed with the central line of the snail shell, the flushing and dispersing blades are uniformly distributed in the snail shell, the flushing and dispersing blades form a circular ring shape, an angle is formed between every two adjacent flushing and dispersing blades, the circular ring shape formed by the flushing and dispersing blades is positioned below the through hole on the top surface of the snail shell, the lower end of the circular ring shape formed by the flushing, the large opening of the landing assisting cone is arranged on a lower through hole formed in the bottom surface of the snail shell, the plurality of cleaning cones are of the same structure and are of a hollow round cone structure, the upper end of each cleaning cone is a small opening, the lower end of each cleaning cone is a large opening, the plurality of cleaning cones are arranged at the same interval from top to bottom, the plurality of cleaning cones form an integral structure through connecting strips and are arranged on the snail shell, the plurality of cleaning cones are located in the center of a circular ring formed by the plurality of dispersing blades, the cleaning cone located at the first upper end of each cleaning cone is located in the upper feeding pipe, and the upper feeding pipe is arranged at the lower end of the shell; the upper part of the air inlet feeding pipe is positioned in the centers of the cleaning cones and the landing assistant cones.
The angle formed between two adjacent scattering blades is 10-20 degrees.
The coarse powder collecting device comprises a material guide cylinder and a cone, the large opening of the cone is arranged at the lower end of the material guide cylinder, the lower end of the cone is provided with a coarse powder discharge hole, and the upper end of the material guide cylinder is arranged on the large opening of the landing assistant cone of the flushing and dispersing device; the lower part of the air inlet feeding pipe is positioned in the material guide cylinder and the cone, and the lower end of the air inlet feeding pipe penetrates through the cone and is positioned on the outer side of the cone.
When the ultrafine powder concentrator is used, the dust collectors are connected to the air outlets arranged at the upper part of the shell, the air blower is connected to the air inlet pipe of the flushing and dispersing device, the fan is connected to the air inlet pipe, the crushed material enters from the feed inlet of the air inlet pipe, the air flow and the material are mixed and move along the air inlet pipe, the air flow and the material reach the air guide blades of the classifying rotor through the air guide cone and a channel formed between the powder collecting device and the shell, the mixed gas of the material after rectification and jet flow dispersion by the air guide blades forms rotary air flow, coarse and fine powder are separated under the action of powerful classifying vortex force, fine powder reaching the granularity requirement enters the dust collectors along with the air flow through the classifying rotor, and. The coarse powder and a small amount of agglomerated fine powder materials are collected by the powder collecting device and then enter the feeding and distributing device, the feeding and distributing device is driven by the transmission shaft to scatter the materials entering the feeding and distributing device towards the inner wall surface of the lower part of the shell, the materials are further dispersed after colliding with the inner wall surface of the shell, particularly the agglomerated fine powder is separated, the separated fine powder enters the classifying rotor along with the ascending air flow to be classified, the rest materials after being dispersed spirally descend to the flushing and distributing device along the shell surface, the materials are intensively flushed by the spiral centrifugal ascending air flow entering the flushing and distributing device, the agglomerated fine powder is scattered again, the coarse powder and the coarse powder are separated again, the pure coarse powder is discharged by the coarse powder collecting device, and the fine powder enters a channel formed between the powder collecting device and the shell along with the ascending air flow to reach the classifying rotor to be. As can be seen from the above, the materials after being sorted by the grading rotor are firstly dispersed by the feeding and distributing device and then further dispersed after colliding with the inner wall of the shell, and then are intensively washed by the washing and dispersing device, the agglomerated fine powder is broken up again, and the coarse powder and the fine powder are separated again. The ultrafine powder selecting machine is used for sorting, separating, dispersing and flushing materials, and then sorting, separating, dispersing and flushing the materials, and through the cyclic reciprocating, the sorting precision is high, the sorting efficiency is high, and the yield is high.
Drawings
FIG. 1 is a schematic structural diagram of a superfine powder concentrator;
FIG. 2 is an enlarged schematic view of the sectional structure of H-H in FIG. 1;
FIG. 3 is a schematic structural diagram of the connection of the powder collecting device, the feeding and distributing device and the transmission shaft;
fig. 4 is a schematic sectional structure view of a-a in fig. 3.
Detailed Description
The technical scheme of the utility model is further explained in detail with the attached drawings as follows:
as shown in fig. 1, the utility model discloses an ultrafine powder concentrator, which comprises a shell 15, a grading rotor 3, a driving device 1 and a transmission shaft 16, wherein the grading rotor 3 comprises wind guide blades. The superfine powder selecting machine also comprises a powder collecting device 4, a feeding and distributing device 5, an air guide cone 29, a flushing and dispersing device 13, a coarse powder collecting device and an air inlet and feeding pipe 10. The drive unit is arranged on top of the housing 15 and the upper end of the drive shaft 16 is located outside the top of the housing 15 and connected to the drive unit 1. The upper end of the transmission shaft 16 is rotatably connected with the top of the housing 15, the lower end of the transmission shaft 16 is located inside the housing 15, the lower end of the transmission shaft 16 is rotatably connected with the bracket, and the bracket is arranged inside the housing 15. The classifying rotor 3 is disposed in the middle of the drive shaft 16. The powder collecting device 4 is located below the classifying rotor 3, and the powder collecting device 4 is provided inside the casing 15. The feeding and distributing device 5 is arranged on the lower end part of the transmission shaft 16. The air guide cone 29 is positioned below the lower end of the transmission shaft 16, and the air guide cone 16 is arranged in the shell 15 through a support rod. The flushing and dispersing device 13 comprises an air inlet pipe, the upper part of the flushing and dispersing device 13 is arranged at the lower end of the shell 15, and the lower part of the flushing and dispersing device 13 is connected with the upper part of the coarse powder collecting device. The upper end of the air inlet feeding pipe 10 penetrates through the coarse powder collecting device and the flushing dispersing device 13 and is located inside the shell 15, the upper end of the air inlet feeding pipe 10 is located below the air guide cone 29, the lower end of the air inlet feeding pipe 10 is located on the outer side of the coarse powder collecting device, a feeding hole 11 is formed in the lower end of the air inlet feeding pipe 10, and a plurality of air outlets 2 are formed in the upper portion of the shell 15.
The powder collecting device 4 is of a cone structure, as shown in fig. 1 and 3, the cone comprises a large opening at the upper end and a small opening at the lower end, the large opening is located below the lower end of the grading rotor, a discharge pipe 20 is arranged on the small opening, a flange I21 is arranged on the discharge pipe 20, and a circumferential groove 22 is arranged on the lower surface of the flange I21. As shown in fig. 3 and 4, the feeding and distributing device 5 includes a bottom plate 27, a collecting cylinder 26, and a plurality of material guiding pipes 31, wherein a through hole is formed in the center of the bottom plate 27, and a shaft sleeve 25 is disposed on the through hole. The collecting cylinder 26 comprises an upper end, a peripheral surface and a lower end, the upper end and the lower end of the collecting cylinder 26 are both open, the lower end of the collecting cylinder 26 is arranged in the center of the bottom plate 27, a plurality of material guide pipes 31 are uniformly distributed on the peripheral surface of the collecting cylinder 26, one ends of the material guide pipes 31 connected with the collecting cylinder 26 are communicated with the collecting cylinder 26, the other end of each material guide pipe 31 is provided with a material guide plate 28, and the material guide plates 28 are of angle steel structures. The upper end of the aggregate cylinder 26 is provided with a second flange 23, and the upper surface of the second flange 23 is provided with a circumferential convex ring 24. A sleeve 25 is mounted on the drive shaft 16. The discharge pipe 20 is inserted into the second flange 23, the circumferential collar 24 fits into the circumferential groove 22, and the circumferential collar 24 is located in the circumferential groove 22.
In order to further improve the dispersion effect, the number of the material guiding pipes 31 uniformly distributed on the circumferential surface of the aggregate cylinder 26 is 5-10.
In order to simplify the structure and improve the washing effect on the materials, the washing and dispersing device 13, as shown in fig. 1 and 2, comprises a snail shell 30, a plurality of washing and dispersing blades 18, a plurality of cleaning cones 14 and a landing-assistant cone 12. The snail shell 30 comprises a peripheral surface, a top part and a bottom surface, the peripheral surface of the snail shell 30 is provided with an air inlet pipe which is a first air inlet pipe 6 and a second air inlet pipe 19, the first air inlet pipe 6 and the second air inlet pipe 19 are symmetrical relative to the central line of the snail shell 30, the top surface is provided with an upper through hole, the bottom surface is provided with a lower through hole, the upper through hole on the top surface is provided with an upper feeding pipe, and the center of the upper through hole is superposed with the central line of the snail shell 30. The dispersing blades 18 are uniformly distributed in the snail shell 30, the dispersing blades 18 form a ring shape, and an angle is formed between every two adjacent dispersing blades 18. The ring-shaped part formed by the plurality of dispersing blades 18 is positioned below the through hole on the top surface of the snail shell 30, and the lower end of the ring-shaped part formed by the plurality of dispersing blades 18 is arranged on the annular plate 17. The landing assistant cone 12 is in a broken-end cone structure, the annular plate 17 is arranged on a small opening of the landing assistant cone 12, and a large opening of the landing assistant cone 12 is arranged on a lower through hole arranged on the bottom surface of the snail shell 30. The structure of a plurality of cleaning cones 14 is the same, the cleaning cones are hollow round cone structures, the upper ends of the cleaning cones 14 are small openings, the lower ends of the cleaning cones 14 are large openings, the cleaning cones 14 are arranged at the same interval from top to bottom, the cleaning cones 14 form an integral structure through connecting strips and are arranged on the snail shell 30, the cleaning cones 14 are located in the center of a circular ring formed by the dispersing blades 18, the cleaning cone 14 located at the first upper end in the cleaning cones 14 is located in the upper feeding pipe, and the upper feeding pipe is arranged at the lower end of the shell 15. The upper part of the air inlet feed pipe 10 is positioned at the center of a plurality of cleaning cones 14 and a landing assistant cone 12.
In order to further improve the washing effect on the materials, the angle formed between every two adjacent dispersing blades 18 is 10-20 degrees.
The coarse powder collecting device comprises a material guide cylinder 7 and a cone 8, wherein the large opening of the cone 8 is arranged at the lower end of the material guide cylinder 7, the lower end of the cone 8 is provided with a coarse powder discharge hole 9, and the upper end of the material guide cylinder 7 is arranged on the large opening of a landing-assisting cone 12 of the flushing and dispersing device 13. The lower part of the air inlet pipe 10 is positioned in the guide cylinder 7 and the cone 8, and the lower end of the air inlet pipe 10 penetrates through the cone 8 and is positioned outside the cone 8.
When the ultrafine powder concentrator is used, a plurality of air outlets 2 arranged on the upper part of a shell 15 are respectively connected with a dust collector, an air inlet pipe I6 and an air inlet pipe II 19 of a flushing and dispersing device 13 are respectively connected with an air blower, an air inlet pipe 10 is connected with a fan, a classifying rotor 3 is driven by a transmission shaft 16 to rotate, crushed materials enter from a feed inlet 11 of the air inlet pipe 10, air flow and the materials are mixed to move along the air inlet pipe 10 and reach an air guide blade of the classifying rotor 3 through a channel formed between an air guide cone 29 and a powder collecting device 4 and the shell 15, mixed gas of the materials after rectification and jet flow dispersion by the air guide blade forms rotary air flow, coarse powder and fine powder are separated under the action of strong classifying vortex force, fine powder reaching the granularity requirement enters the dust collector along with the air flow through the classifying rotor 3. The coarse powder and a small amount of agglomerated fine powder materials are collected by a powder collecting device 4 and then enter a feeding and distributing device 5, the feeding and distributing device 5 is driven by a transmission shaft 16 to distribute the materials in the feeding and distributing device towards the inner wall surface of the lower part of a shell 15, the materials collide with the inner wall surface of the shell 15 to obtain further dispersion, particularly the agglomerated fine powder is separated, the separated fine powder enters a grading rotor 3 along with ascending air flow to be sorted, the residual materials after dispersion spirally descend along the surface of the shell to a flushing and dispersing device 13, the materials entering the flushing and dispersing device 13 collide with a plurality of flushing and dispersing blades 18 under the drive of the air flow, the agglomerated fine powder is further dispersed and separated after collision, then the agglomerated fine powder is cleaned and separated again for a plurality of times by a plurality of cleaning cones 14 which are arranged at the same interval from top to bottom by spiral centrifugal ascending air flow, and the coarse powder is separated again, pure coarse powder is discharged through a coarse powder discharge port 9 of the coarse powder collecting device, and fine powder enters a channel formed between the powder collecting device 4 and the shell 15 along with the ascending air flow to reach the classifying rotor 3 for classifying. As can be seen from the above, the materials after being sorted by the grading rotor 3 are firstly dispersed by the feeding and distributing device 5 and then further dispersed after colliding with the inner wall of the shell 15, and then are intensively washed by the washing and dispersing device 13, the agglomerated fine powder is broken up again, and the coarse powder and the fine powder are separated again. The ultrafine powder selecting machine is used for sorting, separating, dispersing and flushing materials, and then sorting, re-separating, dispersing and re-flushing the materials, and through the cyclic reciprocating motion, the sorting precision is high, the sorting efficiency is high, and the yield is high. Practice shows that compared with the prior art, the graded product d50 is below 6 um; the sorting efficiency is more than 80%; the single machine material handling capacity is more than 200 tons, and the finished product amount is more than 100 tons, the energy consumption of the unit product is reduced by 50 percent, and the method can be really used for industrial production.
The above-mentioned embodiments further describe the objects, technical solutions and advantages of the present invention in detail, it should be understood that the above description is only the embodiments of the present invention, and is not intended to limit the present invention, and any modifications, equivalent substitutions, improvements and the like made within the spirit and principle of the present invention should be included in the scope of the present invention.
Claims (6)
1. An ultrafine powder concentrator comprises a shell, a grading rotor, a driving device and a transmission shaft, wherein the grading rotor comprises air guide blades and is characterized by also comprising a powder collecting device, a feeding and distributing device, an air guide cone, a flushing and dispersing device, a coarse powder collecting device and an air inlet and feeding pipe, the driving device is arranged on the top of the shell, the upper end of the transmission shaft is positioned on the outer side of the top of the shell and is connected with the driving device, the upper end of the transmission shaft is rotatably connected with the top of the shell, the lower end of the transmission shaft is positioned in the shell, the lower end of the transmission shaft is rotatably connected with a support, the support is arranged in the shell, the grading rotor is arranged in the middle of the transmission shaft, the powder collecting device is positioned below the grading rotor, the powder collecting device is arranged in the shell, the feeding and distributing device is arranged on the lower end of the transmission shaft, the wind-guiding awl passes through branch setting in the casing, it includes the air-supply line to wash dispersion devices, the upper portion that washes dispersion devices sets up on the lower extreme of casing, the lower part that washes dispersion devices links to each other with middlings collection device's upper portion, the upper end of air inlet pipe is passed middlings collection device and is washed dispersion devices and be located inside the casing, and the upper end of air inlet pipe is located the below of wind-guiding awl, the lower extreme of air inlet pipe is located the outside of middlings collection device, be equipped with the feed inlet under the air inlet pipe, the upper portion of casing.
2. An ultrafine powder concentrator as claimed in claim 1, wherein the powder collecting device is of a cone structure, the cone comprises a large opening at the upper end and a small opening at the lower end, the large opening is located below the lower end of the classifying rotor, the small opening is provided with a discharging pipe, the discharging pipe is provided with a first flange, and the lower surface of the first flange is provided with a circumferential groove; the feeding and distributing device comprises a bottom plate, an aggregate cylinder body and a plurality of guide pipes, wherein a through hole is formed in the center of the bottom plate, a shaft sleeve is arranged on the through hole, the aggregate cylinder body comprises an upper end, a peripheral surface and a lower end, the upper end and the lower end of the aggregate cylinder body are open, the lower end of the aggregate cylinder body is arranged in the center of the bottom plate, a plurality of guide pipe uniform distribution devices are arranged on the peripheral surface of the aggregate cylinder body, one end, connected with the aggregate cylinder body, of each guide pipe is communicated with the aggregate cylinder body, the other end of each guide pipe is provided with a guide plate, each guide plate is of an angle steel structure, the upper end of the aggregate cylinder body is provided with a second flange, a circumferential convex ring is arranged on the upper surface of the second flange, the shaft sleeve is arranged on a transmission shaft.
3. A superfine powder concentrator as claimed in claim 2 wherein the number of said guide tubes uniformly distributed on the circumference of the collecting cylinder is 5-10.
4. An ultrafine powder concentrator as claimed in claim 1, wherein the flushing and dispersing device comprises a snail shell, a plurality of flushing blades, a plurality of cleaning cones and a landing cone, the snail shell comprises a peripheral surface, a top surface and a bottom surface, a first air inlet pipe and a second air inlet pipe are respectively arranged on the peripheral surface of the snail shell, the first air inlet pipe and the second air inlet pipe are symmetrical relative to the central line of the snail shell, an upper through hole is arranged on the top surface, a lower through hole is arranged on the bottom surface, an upper feed pipe is arranged on the through hole on the top surface, the center of the upper through hole is coincident with the central line of the snail shell, a plurality of flushing blades are uniformly distributed in the snail shell, a plurality of flushing blades form a circular ring shape, an angle is formed between two adjacent flushing blades, the circular ring shape formed by a plurality of flushing blades is positioned below the through hole on the top surface of the snail shell, the lower end of the circular ring, the landing assisting cone is of a broken-end cone structure, the annular plate is arranged on the small opening of the landing assisting cone, the large opening of the landing assisting cone is arranged on the lower through hole formed in the bottom surface of the snail shell, the plurality of cleaning cones are of hollow round cone structures with the same structure and are of small openings, the lower ends of the cleaning cones are large openings, the plurality of cleaning cones are arranged at the same interval from top to bottom, the plurality of cleaning cones form an integral structure through connecting strips and are arranged on the snail shell, the plurality of cleaning cones are located in the center of a circular ring formed by the plurality of dispersing blades, the cleaning cone located at the first upper end of the plurality of cleaning cones is located in the upper feeding pipe, and the feeding pipe is arranged at the lower end of the shell; the upper part of the air inlet feeding pipe is positioned in the centers of the cleaning cones and the landing assistant cones.
5. An ultrafine powder concentrator as claimed in claim 4, wherein the angle formed between adjacent two dispersing blades is 10-20 °.
6. The ultrafine powder concentrator as claimed in claim 4, wherein the coarse powder collecting device comprises a material guiding cylinder and a cone, the large opening of the cone is arranged at the lower end of the material guiding cylinder, the lower end of the cone is provided with a coarse powder discharging opening, and the upper end of the material guiding cylinder is arranged at the large opening of the landing assistant cone of the flushing and dispersing device; the lower part of the air inlet feeding pipe is positioned in the material guide cylinder and the cone, and the lower end of the air inlet feeding pipe penetrates through the cone and is positioned on the outer side of the cone.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922240819.6U CN211329721U (en) | 2019-12-14 | 2019-12-14 | Superfine powder selecting machine |
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| CN201922240819.6U CN211329721U (en) | 2019-12-14 | 2019-12-14 | Superfine powder selecting machine |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112387594A (en) * | 2020-09-05 | 2021-02-23 | 江苏吉能达环境能源科技有限公司 | Multistage regulation type powder concentrator |
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2019
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112387594A (en) * | 2020-09-05 | 2021-02-23 | 江苏吉能达环境能源科技有限公司 | Multistage regulation type powder concentrator |
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