CN216397116U - High-precision grader - Google Patents
High-precision grader Download PDFInfo
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- CN216397116U CN216397116U CN202123191196.1U CN202123191196U CN216397116U CN 216397116 U CN216397116 U CN 216397116U CN 202123191196 U CN202123191196 U CN 202123191196U CN 216397116 U CN216397116 U CN 216397116U
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Abstract
The utility model discloses a high-precision grader, which comprises an outer cylinder body vertically arranged, wherein a sealing plate is fixedly arranged at the upper end of the outer cylinder body, a grading wheel shaft is rotatably arranged on the sealing plate, the lower end of the grading wheel shaft extends into the outer cylinder body and is fixedly provided with a grading wheel, a feed inlet positioned on the lower side of the grading wheel is arranged on the outer cylinder body, a discharge hole is also formed in the sealing plate, a discharge cylinder is fixedly arranged on the upper surface of the sealing plate, a driving device for driving the grading wheel shaft to rotate is arranged on the discharge cylinder, a discharge outlet is formed in the discharge cylinder, a large-particle discharge outlet is formed in the lower end of the outer cylinder body, the grading wheel comprises an upper wheel ring and a lower wheel ring, a blade is fixedly arranged between the upper wheel ring and the lower wheel ring, the discharge hole is positioned on the inner side of the upper wheel ring, and a compressed air sealing device is arranged between the upper surface of the upper wheel ring and the sealing plate. Compressed air sealing device makes compressed air can get into the closing plate and go up the clearance between the wheel ring, has avoided the large granule to get into out the feed cylinder, has improved classification efficiency.
Description
Technical Field
The utility model relates to a high-precision grader.
Background
The traditional dry air classifier consists of a motor, a classifying wheel, a classifying barrel body and the like, and realizes effective classification of materials by adjusting the rotating speed of the classifying wheel and matching with reasonable secondary air. However, the traditional airflow classifier has the defects of small treatment capacity, low classification precision and low fine powder extraction rate; and the dynamic sealing effect between the grading wheel and the machine body is poor, and the defect that large particles can not be effectively prevented from entering the discharging barrel is overcome.
Disclosure of Invention
In order to make up for the defects, the utility model provides the high-precision classifier which can effectively prevent large particles from entering the discharging barrel, ensures the classification precision and has higher classification efficiency.
The technical scheme of the utility model is as follows: a high-precision grader comprises an outer cylinder body which is vertically arranged, a sealing plate is fixedly arranged at the upper end of the outer cylinder body, a grading wheel shaft is rotatably arranged on the sealing plate, the lower end of the grading wheel shaft extends into the outer cylinder body and is fixedly provided with a grading wheel, the outer cylinder body is provided with a feed inlet positioned at the lower side of the grading wheel, the sealing plate is also provided with a discharge hole, the upper surface of the sealing plate is fixedly provided with a discharging barrel, the discharging barrel is provided with a driving device for driving the grading wheel shaft to rotate, the discharge barrel is provided with a discharge port, the lower end of the outer barrel body is provided with a large particle discharge port, the grading wheel comprises an upper wheel ring and a lower wheel ring, the blade is fixedly installed between the upper wheel ring and the lower wheel ring, the discharge hole is located on the inner side of the upper wheel ring, and a compressed air sealing device is arranged between the upper surface of the upper wheel ring and the sealing plate.
As the preferred technical scheme, the compressed air sealing device includes establish the closing plate with annular seal groove between the upper rim and be located the sealing ring in the annular seal groove, the compressed air sealing device is still including establishing compressed air inlet on the closing plate, the compressed air inlet with the upper rim with the clearance intercommunication between the closing plate.
As a preferable technical scheme, a compressed air inlet housing is fixedly mounted on the upper surface of the sealing plate, and the compressed air inlet housing covers the compressed air inlet hole.
As the preferred technical scheme, the lower fixed surface of closing plate installs annular casing, annular casing's upper surface is equipped with annular opening, annular casing with closing plate sealing connection, the compressed air inlet hole warp annular opening with annular casing intercommunication, a plurality of compressed air ventholes have been seted up to annular casing's bottom, the compressed air venthole with go up the rim with clearance between annular casing's the bottom surface communicates each other, annular seal groove and sealing ring are established go up the upper surface of rim with between the annular casing.
Preferably, the compressed air outlet hole is located on the outer side of the sealing ring.
As a preferable technical scheme, an arc transition surface is arranged between the outer side groove wall of the annular shell and the groove bottom surface of the annular shell.
As the preferred technical scheme, the lower end of the outer cylinder body is provided with a secondary air inlet mechanism.
As preferred technical scheme, the lower port of outer barrel is connected with the back taper play feed cylinder, the lower port of back taper play feed cylinder does the large granule discharge gate, secondary air inlet mechanism is including seting up the fresh air inlet and the annular feeding casing of the side surface of back taper play feed cylinder, be equipped with the air intake on the annular feeding casing, be equipped with the air inlet governing valve on the air intake.
As a preferable technical scheme, the axis of the air inlet hole extends towards the upper part of the inverted cone-shaped discharging barrel.
Due to the adoption of the technical scheme, the high-precision grader comprises the outer cylinder body which is vertically arranged, a sealing plate is fixedly arranged at the upper end of the outer cylinder body, a grading wheel shaft is rotatably arranged on the sealing plate, the lower end of the grading wheel shaft extends into the outer cylinder body and is fixedly provided with a grading wheel, the outer cylinder body is provided with a feed inlet positioned at the lower side of the grading wheel, the sealing plate is also provided with a discharge hole, the upper surface of the sealing plate is fixedly provided with a discharge barrel, the discharging barrel is provided with a driving device for driving the grading wheel shaft to rotate, a discharging port is arranged on the discharging barrel, the lower end of the outer cylinder body is provided with a large particle discharge hole, the grading wheel comprises an upper wheel ring and a lower wheel ring, the blade is fixedly installed between the upper wheel ring and the lower wheel ring, the discharge hole is located on the inner side of the upper wheel ring, and a compressed air sealing device is arranged between the upper surface of the upper wheel ring and the sealing plate. Compressed air sealing device makes compressed air can get into the closing plate and go up the clearance between the wheel ring, has avoided the large granule to get into out the feed cylinder, has improved classification efficiency.
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 partial enlarged view at II in fig. 2.
Detailed Description
As shown in fig. 1, 2 and 3, a high-precision classifier comprises an outer cylinder 1 vertically arranged, a sealing plate 2 is fixedly installed at the upper end of the outer cylinder 1, a classifying wheel shaft 3 is rotatably installed on the sealing plate 2, the lower end of the classifying wheel shaft 3 extends into the outer cylinder 1 and is fixedly installed with a classifying wheel 23, a feed inlet 4 positioned at the lower side of the classifying wheel 3 is arranged on the outer cylinder 1, a discharge hole 5 is further arranged on the sealing plate 2, a discharge cylinder 6 is fixedly installed on the upper surface of the sealing plate 2, a driving device for driving the classifying wheel shaft to rotate is installed on the discharge cylinder 6, the driving device comprises a driving motor 24, a discharge outlet 7 is arranged on the discharge cylinder, a large-particle discharge outlet 8 is arranged at the lower end of the outer cylinder 1, the classifying wheel comprises an upper wheel ring 9 and a lower wheel ring, and a blade 10 is fixedly installed between the upper wheel ring 9 and the lower wheel ring, the discharge hole 5 is positioned on the inner side of the upper wheel ring 9, and a compressed air sealing device is arranged between the upper surface of the upper wheel ring 9 and the sealing plate. Compressed air sealing device makes compressed air can get into the closing plate and go up the clearance between the wheel ring, has avoided the large granule to get into out the feed cylinder, has improved classification efficiency.
The compressed air sealing device comprises a sealing plate 2, an annular sealing groove 25 between the upper wheel ring 9 and a sealing ring 11 in the annular sealing groove, the compressed air sealing device further comprises a compressed air inlet hole 12 formed in the sealing plate, and the compressed air inlet hole 12 is communicated with a gap between the upper wheel ring 9 and the sealing plate 2. The sealing ring and the sealing groove are arranged to play a role in sealing, and meanwhile, compressed air is blown outwards through the sealing ring and the sealing groove, so that large particles are prevented from entering the sealing ring.
And a compressed air inlet shell 13 is fixedly arranged on the upper surface of the sealing plate, and covers the compressed air inlet hole.
In order to improve the effect of stopping the large granule and getting into out the feed cylinder, the lower fixed surface of closing plate 2 installs annular casing 14, annular casing 14's upper surface is equipped with annular opening, annular casing 14 with closing plate 2 sealing connection, compressed air inlet 12 warp annular opening with annular casing 14 intercommunication, a plurality of compressed air ventholes 15 have been seted up to annular casing 14's bottom, compressed air venthole 15 with go up wheel ring 9 with clearance between the bottom surface of annular casing 14 communicates each other, annular seal groove 10 and sealing ring 11 are established go up the upper surface of wheel ring 9 with between the annular casing 14. The compressed air inlet hole is communicated with the gap between the upper wheel ring 9 and the bottom surface of the annular shell 14 through the annular shell inner cavity and the compressed air outlet hole.
The compressed air outlet hole 15 is located outside the sealing ring. Large particles are prevented from entering between the sealing ring and the sealing groove.
In order to make the flow of the compressed air smoother, a circular arc transition surface 17 is provided between the outer side wall 16 of the inner cavity of the annular housing 4 and the bottom surface of the inner cavity of the annular housing.
And a secondary air inlet mechanism is arranged at the lower end of the outer cylinder.
The lower port of outer barrel is connected with back taper play feed cylinder 19, the lower port that the back taper goes out the feed cylinder does the large granule discharge gate, secondary air inlet mechanism is including seting up the fresh air inlet 20 and the annular feeding casing 21 of the side surface of back taper play feed cylinder, be equipped with air intake 22 on the annular feeding casing, be equipped with the air inlet governing valve on the air intake. The air inlet governing valve is including installing interior air inlet plate in the air inlet and with interior air inlet plate rotates the outer air inlet plate of installing together, interior air inlet plate with pivot between the outer air inlet plate with the axis coincidence of air intake, interior air inlet plate with air inlet control hole has been seted up on the outer air inlet plate respectively, works as air inlet control hole on the interior air inlet plate with air inlet control hole coincidence on the outer air inlet plate, and the air can get into the air intake from air inlet control hole.
The axis of the air inlet hole 20 extends towards the upper part of the inverted cone-shaped discharging barrel 19.
The foregoing shows and describes the general principles, essential features, and advantages of the utility model. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are given by way of illustration of the principles of the present invention, and that various changes and modifications may be made therein without departing from the spirit and scope of the utility model as defined by the appended claims. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (9)
1. A high-precision grader is characterized by comprising an outer cylinder body which is vertically arranged, a sealing plate is fixedly arranged at the upper end of the outer cylinder body, a grading wheel shaft is rotatably arranged on the sealing plate, the lower end of the grading wheel shaft extends into the outer cylinder body and is fixedly provided with a grading wheel, the outer cylinder body is provided with a feed inlet positioned at the lower side of the grading wheel, the sealing plate is also provided with a discharge hole, the upper surface of the sealing plate is fixedly provided with a discharging barrel, the discharging barrel is provided with a driving device for driving the grading wheel shaft to rotate, the discharge barrel is provided with a discharge port, the lower end of the outer barrel body is provided with a large particle discharge port, the grading wheel comprises an upper wheel ring and a lower wheel ring, the blade is fixedly installed between the upper wheel ring and the lower wheel ring, the discharge hole is located on the inner side of the upper wheel ring, and a compressed air sealing device is arranged between the upper surface of the upper wheel ring and the sealing plate.
2. The high precision classifier of claim 1, wherein the compressed air sealing device includes an annular sealing groove provided between the sealing plate and the upper wheel ring and a sealing ring provided in the annular sealing groove, and further includes a compressed air inlet hole provided on the sealing plate, the compressed air inlet hole communicating with a gap between the upper wheel ring and the sealing plate.
3. The high precision classifier according to claim 2, wherein a compressed air inlet housing is fixedly mounted on an upper surface of the sealing plate, and the compressed air inlet housing covers the compressed air inlet hole.
4. The high-precision grader according to claim 3, wherein an annular housing is fixedly mounted on a lower surface of the sealing plate, an annular opening is formed in an upper surface of the annular housing, the annular housing is hermetically connected to the sealing plate, the compressed air inlet hole is communicated with the annular housing through the annular opening, a plurality of compressed air outlet holes are formed in a bottom of the annular housing, the compressed air outlet holes are communicated with a gap between the upper wheel ring and a bottom surface of the annular housing, and the annular sealing groove and the sealing ring are formed between an upper surface of the upper wheel ring and the annular housing.
5. The high precision classifier of claim 4, wherein the compressed air outlet hole is located outside the seal ring.
6. The high precision classifier of claim 4, wherein a rounded transition surface is provided between the outer tank wall of the annular housing and the tank bottom surface of the annular housing.
7. The high-precision grader according to claim 1 wherein the lower end of said outer cylinder is provided with a secondary air intake mechanism.
8. The high-precision grader according to claim 7, wherein the lower port of the outer cylinder is connected with an inverted cone discharge cylinder, the lower port of the inverted cone discharge cylinder is used as the large granule discharge port, the secondary air inlet mechanism comprises an air inlet hole formed in the side surface of the inverted cone discharge cylinder and an annular feeding shell, the annular feeding shell is provided with an air inlet, and the air inlet is provided with an air inlet adjusting valve.
9. The high precision grader according to claim 8 wherein the axis of said air inlet opening extends toward the upper portion of said inverted cone discharge barrel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123191196.1U CN216397116U (en) | 2021-12-18 | 2021-12-18 | High-precision grader |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123191196.1U CN216397116U (en) | 2021-12-18 | 2021-12-18 | High-precision grader |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216397116U true CN216397116U (en) | 2022-04-29 |
Family
ID=81285250
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123191196.1U Active CN216397116U (en) | 2021-12-18 | 2021-12-18 | High-precision grader |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216397116U (en) |
-
2021
- 2021-12-18 CN CN202123191196.1U patent/CN216397116U/en active Active
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