CN111940296B - Coarse powder grader - Google Patents
Coarse powder grader Download PDFInfo
- Publication number
- CN111940296B CN111940296B CN202010792233.5A CN202010792233A CN111940296B CN 111940296 B CN111940296 B CN 111940296B CN 202010792233 A CN202010792233 A CN 202010792233A CN 111940296 B CN111940296 B CN 111940296B
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- barrel
- cylinder
- grading
- feeding
- feed
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- 239000000843 powder Substances 0.000 title claims abstract description 25
- 239000000463 material Substances 0.000 claims abstract description 36
- 230000007246 mechanism Effects 0.000 claims abstract description 14
- 238000007599 discharging Methods 0.000 claims abstract description 13
- 238000009434 installation Methods 0.000 claims description 13
- 239000006185 dispersion Substances 0.000 claims description 12
- 238000009423 ventilation Methods 0.000 claims description 10
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 235000012054 meals Nutrition 0.000 claims 5
- 230000009471 action Effects 0.000 abstract description 5
- 239000000428 dust Substances 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 12
- 235000017491 Bambusa tulda Nutrition 0.000 description 12
- 241001330002 Bambuseae Species 0.000 description 12
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 12
- 239000011425 bamboo Substances 0.000 description 12
- 230000001105 regulatory effect Effects 0.000 description 6
- 239000013590 bulk material Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000011362 coarse particle Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B07—SEPARATING SOLIDS FROM SOLIDS; SORTING
- B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL
- B07B7/00—Selective separation of solid materials carried by, or dispersed in, gas currents
- B07B7/08—Selective separation of solid materials carried by, or dispersed in, gas currents using centrifugal force
- B07B7/083—Selective separation of solid materials carried by, or dispersed in, gas currents using centrifugal force generated by rotating vanes, discs, drums, or brushes
Landscapes
- Combined Means For Separation Of Solids (AREA)
Abstract
The invention relates to a coarse powder classifier, which comprises a barrel, wherein the barrel comprises an inner barrel and an outer barrel, the inner barrel is fixedly arranged in the outer barrel, the upper end of the outer barrel is sealed and provided with a feed hole, the feed hole is fixedly provided with a feed barrel positioned in the inner barrel, a material dispersing device positioned below the discharge end of the feed barrel is rotatably arranged in the barrel, a classifying mechanism positioned between the inner barrel and the feed barrel is also rotatably arranged in the barrel, a fan for generating upward movement airflow between the inner barrel and the feed barrel is also arranged in the barrel, a fine material passing gap is arranged between the upper end of the inner barrel and the outer barrel, and a ventilating device positioned below the material dispersing device is arranged between the inner barrel and the outer barrel; the coarse powder touches the inner cylinder wall under the action of centrifugal force, slides downwards and is deposited at the lower part of the inner discharging cylinder; the fine powder is rapidly changed into the movement direction through the centrifugal force of the grading mechanism and the fan and separated from the air flow, and the method has the advantages of small occupied area, small dust pollution and large treatment capacity.
Description
Technical Field
The invention relates to a coarse powder classifier.
Background
In the prior art, when coarse particle classification is carried out, a linear sieve and a disc sieve are mostly adopted, and the separation of coarse and fine materials is realized by adopting the linear sieve and the disc sieve with different mesh screens, so that the defects of large workshop floor area, dust raising, low treatment capacity and the like exist.
Disclosure of Invention
The invention aims to solve the technical problem of providing the coarse powder classifier which has the advantages of small occupied area, low energy consumption, small dust pollution, large treatment capacity, energy conservation, environmental protection and convenient particle size adjustment.
In order to solve the technical problems, the technical scheme of the invention is as follows: the utility model provides a middlings grader, includes the barrel, the barrel includes inner tube and urceolus, inner tube fixed mounting in inside the urceolus, the upper end of urceolus seals and is equipped with the feed port, feed port fixed mounting has and is located a feeding section of thick bamboo in the inner tube, install in the barrel and be located the material dispersion devices of the below of the discharge end of a feeding section of thick bamboo, still install in the barrel and be located the inner tube with hierarchical mechanism between the feeding section of thick bamboo, still be equipped with in the barrel the inner tube with produce the fan of the air current of upward movement between the feeding section of thick bamboo, the upper end of inner tube with be equipped with the thin material mistake between the urceolus and expect the clearance, the inner tube with be equipped with between the urceolus and be located the ventilation unit of material dispersion devices below, the warp the ventilation unit air current gets into from the clearance between inner tube and the urceolus inside the inner tube.
As the preferred technical scheme, still rotate on the urceolus and install and pass stretch into behind the feeding section of thick bamboo main shaft in the inner tube, material dispersion devices includes fixed mounting and is in the bulk cargo dish of the lower extreme of main shaft, the bulk cargo dish is located the below of the discharge end of feeding section of thick bamboo, hierarchical mechanism includes the classifying wheel, classifying wheel fixed mounting is in on the main shaft and be located the bulk cargo dish top, the classifying wheel includes hierarchical blade, hierarchical blade is located the feeding section of thick bamboo with between the inner tube, the fan includes the wind wheel, wind wheel fixed mounting is in on the main shaft and be located the classifying wheel top.
As the preferred technical scheme, the upper surface of the material scattering disk is fixedly provided with a strip-shaped dispersing plate.
As a preferred technical scheme, a flow guide body positioned in the air inlet ring is fixedly arranged in the inner cylinder.
As the preferred technical scheme, the flow guide body comprises a flow guide cylinder body, a conical cylinder is fixedly mounted at the upper end of the flow guide cylinder body, and an inverted conical cylinder is fixedly mounted at the lower end of the flow guide cylinder body.
As a preferred technical solution, the ventilation device includes an upper ring and a lower ring, a plurality of baffles arranged at intervals are fixedly installed between the upper ring and the lower ring, and the outer ends of the baffles extend out of the outer peripheral surfaces of the upper ring and the lower ring.
As a preferred technical scheme, a fineness adjusting device is arranged between the upper end of the inner cylinder and the outer cylinder.
As an optimized technical scheme, the fineness adjusting device comprises a fixing plate fixedly installed between the inner cylinder and the outer cylinder, an adjusting hole is formed in the fixing plate, the fineness adjusting device further comprises an adjusting plate for adjusting the opening size of the adjusting hole, and an adjusting mechanism is arranged between the adjusting plate and the outer cylinder.
As the preferred technical scheme, the lower extreme fixed mounting of inner tube has interior play feed cylinder, the lower extreme fixed mounting of urceolus has the cover go out the feed cylinder outside interior play feed cylinder, interior play feed cylinder with go out the feed cylinder and be the back taper.
Preferably, the feeding cylinder has a reverse tapered surface, and the feeding hole is located right above the reverse tapered surface.
As the technical scheme is adopted, the coarse powder classifier comprises a cylinder body, wherein the cylinder body comprises an inner cylinder and an outer cylinder, the inner cylinder is fixedly arranged in the outer cylinder, the upper end of the outer cylinder is closed and is provided with a feed hole, the feeding hole is fixedly provided with a feeding barrel positioned in the inner barrel, the barrel body is internally provided with a material dispersing device positioned below the discharging end of the feeding barrel, a grading mechanism positioned between the inner cylinder and the feeding cylinder is also arranged in the cylinder body, a fan for generating upward moving airflow between the inner cylinder and the feeding cylinder is also arranged in the cylinder body, a fine material passing gap is formed between the upper end of the inner cylinder and the outer cylinder, a ventilation device positioned below the material dispersing device is arranged between the inner cylinder and the outer cylinder, and airflow enters the inner cylinder from the gap between the inner cylinder and the outer cylinder through the ventilation device; the material enters the inner cylinder from the feeding cylinder, the material rises along the inner cylinder along with the rotating airflow generated by the wind wheel under the action of the material dispersing device, and the coarse powder touches the wall of the inner cylinder under the action of centrifugal force and slides down and deposits at the lower part of the inner discharging cylinder; the fine powder is discharged from the discharge valve through the coarse powder port, the fine powder is rapidly changed into the movement direction through the grading mechanism and the centrifugal force of the fan to be separated from the air flow, and slides to the bottom of the outgoing charging barrel through the fine material passing gap along the inner wall of the outer barrel, and is discharged through the fine powder discharge valve.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of an embodiment of the present invention;
FIG. 2 is an enlarged view of a portion of FIG. 1 at I;
FIG. 3 is a schematic view showing the installation positions of the bulk material tray, the classifying wheel and the wind wheel in the embodiment of the invention;
FIG. 4 is a schematic view of an embodiment of an air inlet ring;
FIG. 5 is a schematic structural view of a fineness adjusting means in the embodiment of the present invention;
FIG. 6 is an enlarged view of a portion of FIG. 3 at II;
fig. 7 is a plan view of a dispersion impeller according to an embodiment of the present invention.
Detailed Description
As shown in fig. 1 to 7, a coarse powder classifier comprises a cylinder body which comprises an inner cylinder 1 and an outer cylinder 2, the inner cylinder 1 is fixedly arranged inside the outer cylinder 2, the upper end of the outer cylinder 2 is closed and is provided with a feed hole, the feeding hole is fixedly provided with a feeding barrel 3 positioned in the inner barrel, a material dispersing device positioned below the discharging end of the feeding barrel 3 is arranged in the barrel, a grading mechanism arranged between the inner cylinder 2 and the feeding cylinder 3 is also arranged in the cylinder body, a fan which generates upward moving airflow between the inner cylinder 2 and the feeding cylinder 3 is also arranged in the cylinder body, a fine material passing gap 6 is arranged between the upper end of the inner cylinder 1 and the outer cylinder 2, a ventilation device positioned below the material dispersing device is arranged between the inner cylinder 1 and the outer cylinder 2, and air flow passes through the ventilation device and enters the inner cylinder from a gap between the inner cylinder and the outer cylinder.
Still rotate on the urceolus 2 and install and pass stretch into behind the feed cylinder 3 main shaft 4 in the inner tube 1, material dispersion devices includes fixed mounting and is in bulk cargo dish 11 of the lower extreme of main shaft 4, the bulk cargo dish is located the below of the discharge end of feed cylinder, grading mechanism includes gradation wheel 12, 12 fixed mounting of gradation wheel are in just be located on the main shaft bulk cargo dish 11 top, the gradation wheel is including hierarchical blade 29, hierarchical blade is located the feed cylinder with between the inner tube, the fan includes wind wheel 13, wind wheel fixed mounting is in on the main shaft 4 and be located 12 tops of gradation wheel, the wind wheel includes wind wheel blade 30.
The method integrates the classification, the fan and the collector, overcomes the defects of large occupied area, high energy consumption, environmental pollution caused by dust emission, small treatment capacity and the like of the traditional coarse powder classification preparation method, and really realizes large treatment capacity, energy conservation and environmental protection.
The main shaft is provided with a material dispersing disc, a grading wheel and an air wheel which have material dispersing, grading and fan integrating functions, a speed reduction motor drives the main shaft through a coupler, the main shaft is sequentially provided with an air wheel, the grading wheel and a material dispersing disc from top to bottom, materials enter the inner barrel from a feeding barrel, the materials rise along the inner barrel along with rotating airflow generated by the air wheel under the action of the material dispersing disc, coarse powder touches the inner barrel wall under the action of centrifugal force, and the coarse powder slides down and deposits on the lower part of an inner discharging barrel; the fine powder is discharged from a discharge valve 44 through a coarse powder opening, the fine powder is rapidly converted into the movement direction through the centrifugal force of a grading wheel and a wind wheel to be separated from the airflow, slides to the bottom of an outgoing charging barrel through a fine material passing gap along the inner wall of the outer barrel, is discharged through a fine powder discharge valve 43, flows into the inner barrel through the fine material passing gap and an air inlet ring, and then continuously rises, so that the internal circulation use of the airflow is realized.
As shown in fig. 1, the flow guiding body includes a flow guiding cylinder body 15, a conical cylinder 16 is fixedly installed at the upper end of the flow guiding cylinder body, and an inverted conical cylinder 17 is fixedly installed at the lower end of the flow guiding cylinder body. When the air current from the bottom up passes through the baffle, because the setting of back taper section of thick bamboo makes, the clearance from the bottom up reduces between baffle and the inner tube, has improved the velocity of flow of air current, and the setting up of toper section of thick bamboo makes the middlings can fall along the surface of toper section of thick bamboo, has avoided the middlings to pile up on the baffle.
As shown in fig. 1 and 4, the air inlet ring includes an upper ring 18 and a lower ring 19, a plurality of baffles 20 arranged at intervals are fixedly installed between the upper ring and the lower ring, the outer ends of the baffles extend out of the outer peripheral surfaces of the upper ring and the lower ring, and the baffles are inclined to the diameter direction of the air inlet ring. The fine powder can not enter the inner cylinder and the coarse powder can not enter the outer cylinder from the inner cylinder due to the inclined arrangement of the guide plate on the air inlet ring.
As shown in fig. 1, 2 and 5, a fineness adjusting device is arranged between the upper end of the inner cylinder and the outer cylinder, so that the granularity can be adjusted conveniently.
Fineness adjusting device includes fixed mounting the inner tube with fixed plate 22 between the urceolus, the regulation hole 23 has been seted up on the fixed plate, the regulation hole with carefully expect that the material clearance communicates, fineness adjusting device is still including adjusting regulation hole open-ended size can be adjusted through the regulating plate to regulating plate 24, the regulating plate with establish adjustment mechanism between the urceolus. The adjustment of the fineness of the classified products is realized by a fineness adjusting device, an adjusting plate is adjusted in, adjusting holes are reduced, fine powder is obtained, and the adjusting plate is adjusted out when a coarse product is obtained. The regulating plate lid is in regulation hole top, adjustment mechanism is including seting up screw thread through-hole on the urceolus, screw thread through-hole internal rotation has closed regulation double-screw bolt 40, fixed mounting has spacing ring 41 on the regulating plate, the inner of adjusting the double-screw bolt is equipped with spacing double-screw bolt, spacing double-screw bolt passes the spacing ring has closed stop nut 42 soon, spacing double-screw bolt with spacing ring clearance fit, the spacing ring can for spacing double-screw bolt rotates, stop nut's external diameter is greater than the internal diameter of spacing ring rotates the regulation double-screw bolt like this, owing to the cooperation of adjusting double-screw bolt and screw thread through-hole, adjusts the double-screw bolt for the urceolus back-and-forth movement to drive through the spacing ring the regulating plate removes. The adjusting stud is also provided with scale marks, the adjusting plate is completely adjusted out in the figure 1, and the adjusting hole is opened to the maximum.
As shown in fig. 1, a connecting plate 25 located below the fineness adjusting device is arranged between the inner cylinder and the outer cylinder, and through holes 26 are uniformly distributed on the connecting plate. The connecting plate strengthens the connection strength between the inner cylinder and the outer cylinder.
The inner discharging barrel 9 and the outer discharging barrel 10 are in inverted cone shapes.
The feed cylinder has a reverse tapered surface 27, and the feed hole 3 is located directly above the reverse tapered surface 27.
The feeding cylinder 3 is externally sleeved with an installation cylinder 14, and the grading wheel and the wind wheel are fixedly connected with the installation cylinder 14.
As shown in fig. 6, the bulk material tray includes a tray body 33, an annular plate 34 fixedly connected with the tray body as a whole is sleeved on the outer peripheral surface of the tray body, the upper surface of the annular plate 34 is an inclined surface 35, and the inclined surface 35 extends from the upper surface of the joint part of the annular plate and the tray body to the outer side of the annular plate and to the obliquely lower side.
The grading wheel comprises a grading wheel ring 28 sleeved outside the installation barrel, the grading wheel ring 28 is fixedly connected with the installation barrel 14, a plurality of grading blades 29 are fixedly installed on the grading wheel ring 28, and the inner ends of the grading blades 29 are located on the outer side of the bulk material disk 11.
The wind wheel includes wind wheel blade 30, and the outer wall fixed mounting of installation section of thick bamboo has the edge installation pole 31 that the diameter direction of installation section of thick bamboo extends, wind wheel blade fixed mounting be in on the installation pole, wind wheel blade's outer end is located hierarchical blade 29's the outside, wind wheel blade 30's the inner is located hierarchical blade 29's the outside, wind wheel blade's lower border is higher than the upper end of inner tube.
A triangular plate 32 is fixedly arranged between the grading wheel ring and the mounting cylinder, and the triangular plate is perpendicular to the grading wheel ring 28.
The inner ends of the classifying vanes 29 are located outside the triangular plate.
As shown in fig. 6 and 7, a strip-shaped dispersion plate 36 is fixedly mounted on the upper surface of the tray body 33 of the dispersion tray. In this embodiment, the length direction of bar dispersion board is along the diametric (al) extension of disk body, the bar dispersion board also can be arc, each the bar dispersion board with the main shaft is the symmetry axis, is central symmetry.
The disk body of bulk cargo dish with be equipped with spliced pole 37 between the hierarchical ring, hierarchical ring with also be equipped with spliced pole 37 between the wind turbine blade.
The installation cylinder comprises an inverted cone 38 and a cylindrical cylinder 39 fixedly installed at the lower end of the inverted cone, the upper edge of the grading blade 29 is lower than the upper end of the cylindrical cylinder 39, and the lower edge of the wind wheel blade is higher than the lower end of the cylindrical cylinder 39.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the invention as claimed. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. A coarse powder classifier is characterized by comprising a cylinder body, wherein the cylinder body comprises an inner cylinder and an outer cylinder, the inner cylinder is fixedly arranged in the outer cylinder, the upper end of the outer cylinder is closed and is provided with a feed hole, the feeding hole is fixedly provided with a feeding barrel positioned in the inner barrel, the barrel body is internally provided with a material dispersing device positioned below the discharging end of the feeding barrel, a grading mechanism arranged between the inner cylinder and the feeding cylinder is also arranged in the cylinder body, a fan generating upward movement airflow between the inner cylinder and the feeding cylinder is also arranged in the cylinder body, a fine material passing gap is formed between the upper end of the inner cylinder and the outer cylinder, a ventilation device positioned below the material dispersing device is arranged between the inner cylinder and the outer cylinder, and airflow enters the inner cylinder from the gap between the inner cylinder and the outer cylinder through the ventilation device; a flow guide body positioned in the air inlet ring is fixedly arranged in the inner cylinder, the flow guide body comprises a flow guide cylinder body, a conical cylinder is fixedly arranged at the upper end of the flow guide cylinder body, and an inverted conical cylinder is fixedly arranged at the lower end of the flow guide cylinder body; the ventilation device comprises an upper ring and a lower ring, a plurality of guide plates arranged at intervals are fixedly arranged between the upper ring and the lower ring, the outer ends of the guide plates extend out of the peripheral surfaces of the upper ring and the lower ring, and the guide plates are inclined to the diameter direction of the air inlet ring; the outer barrel is also rotatably provided with a main shaft which penetrates through the feeding barrel and then extends into the inner barrel, the material dispersing device comprises a material scattering disk fixedly arranged at the lower end of the main shaft, the material scattering disk is positioned below the discharge end of the feeding barrel, the grading mechanism comprises a grading wheel, the grading wheel is fixedly arranged on the main shaft and positioned above the material scattering disk, the grading wheel comprises grading blades, the grading blades are positioned between the feeding barrel and the inner barrel, the fan comprises a wind wheel, and the wind wheel is fixedly arranged on the main shaft and positioned above the grading wheel; the feeding cylinder is sleeved with an installation cylinder, and the grading wheel and the wind wheel are fixedly connected with the installation cylinder; the installation cylinder comprises an inverted cone and a cylindrical cylinder fixedly installed at the lower end of the inverted cone, and the upper edge of the grading blade is lower than the upper end of the cylindrical cylinder.
2. The meal classifier of claim 1 wherein a strip-shaped dispersion plate is fixedly mounted on the upper surface of the dispersion plate.
3. The meal classifier of claim 1, wherein a fineness adjustment means is provided between the upper end of the inner barrel and the outer barrel.
4. The meal classifier of claim 3, wherein the fineness adjusting means comprises a fixing plate fixedly installed between the inner cylinder and the outer cylinder, the fixing plate is provided with an adjusting hole, the fineness adjusting means further comprises an adjusting plate for adjusting the size of the opening of the adjusting hole, and an adjusting mechanism is provided between the adjusting plate and the outer cylinder.
5. The meal classifier as set forth in claim 1, wherein an inner discharging barrel is fixedly mounted at the lower end of said inner barrel, an outer discharging barrel sleeved outside said inner discharging barrel is fixedly mounted at the lower end of said outer barrel, and said inner discharging barrel and said outer discharging barrel are reverse tapered.
6. The meal classifier of any one of claims 1 to 5, wherein the feed cylinder has an inverted conical surface and the feed opening is located directly above the inverted conical surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010792233.5A CN111940296B (en) | 2020-08-08 | 2020-08-08 | Coarse powder grader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010792233.5A CN111940296B (en) | 2020-08-08 | 2020-08-08 | Coarse powder grader |
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| Publication Number | Publication Date |
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| CN111940296A CN111940296A (en) | 2020-11-17 |
| CN111940296B true CN111940296B (en) | 2022-09-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010792233.5A Active CN111940296B (en) | 2020-08-08 | 2020-08-08 | Coarse powder grader |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN119456404A (en) * | 2024-12-26 | 2025-02-18 | 潍坊汇成新材料科技有限公司 | A high-efficiency powder classifier |
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