CN109201483A - A kind of new type of airflow pulverizing grading machine - Google Patents
A kind of new type of airflow pulverizing grading machine Download PDFInfo
- Publication number
- CN109201483A CN109201483A CN201710527612.XA CN201710527612A CN109201483A CN 109201483 A CN109201483 A CN 109201483A CN 201710527612 A CN201710527612 A CN 201710527612A CN 109201483 A CN109201483 A CN 109201483A
- Authority
- CN
- China
- Prior art keywords
- grading wheel
- grading
- labyrinth
- gravity
- wheel
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C19/00—Other disintegrating devices or methods
- B02C19/06—Jet mills
-
- 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
- B07B11/00—Arrangement of accessories in apparatus for separating solids from solids using gas currents
-
- 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
- B07B11/00—Arrangement of accessories in apparatus for separating solids from solids using gas currents
- B07B11/02—Arrangement of air or material conditioning accessories
Abstract
The present invention relates to grader technical fields, more particularly to a kind of new type of airflow pulverizing grading machine, it include: centre of gravity grading wheel, grading wheel primary blades, grading wheel back blades, water conservancy diversion wedge angle, grading wheel main shaft, it is classified impeller blade, grading wheel gusset, center of gravity sinking section, sunk type supporting rib, peaceful dead zone, it is classified cover plate, high pressure admission mouth, compressed air air duct, labyrinth on grader, hermetic seal air duct, labyrinth under grader, grading wheel water conservancy diversion guiding role is more preferable, effectively reduce the abrasion in grading wheel labyrinth, simultaneously because its channelization angle is sharper keen, the precision that it is classified is higher, fineness is thinner, the adding pressure type hermetic seal labyrinth of use, it can effectively reduce the abrasion in labyrinth, material residual and accumulation at labyrinth is effectively reduced, significantly avoid grading wheel locking.It enters the wind the pressure-air used, and pressure can be adjusted voluntarily, is suitable for the application of the biggish material of specific gravity.
Description
Technical field
The present invention relates to grader technical fields, and in particular to a kind of new type of airflow pulverizing grading machine.
Background technique
Grader separation powder is the principle according to centrifugal classification, and fine powder is separated powder from generally thicker powder
Body classifying equipoment.It is classified obtained product not only partial size very little, but also partial size is also distributed about in lesser range.
Grader labyrinth is the component of grading wheel Yu head joint, and grading wheel is high-speed drive component, and head is fixed
Component, there are gaps for joint needs, and do Seal Design to gap using labyrinth.Traditional labyrinth clearance, by setting
Standby internal negative pressure or positive pressure wind-force, form hermetic seal protection to it, to avoid there is material residual packing at labyrinth clearance, cause
Labyrinth blocks, grading wheel locking, but because it is pure inside circulation, a large amount of material, the mixing of gas powder are had in circulating current
Object can cause to wear to labyrinth, and negative pressure inside equipment or positive pressure traction are done and be affected by system Multiple factors, therefore effect
It is limited.
Grading wheel is the core component of gas flow sizing machine, and motor drives grading wheel in classification shell high speed rotation, dividing
Powerful centrifugal force is formed in grade machine.The primary mixture entered in grader is introduced into inside grading wheel, in centrifugal force
Under effect, big or weight particle centrifugalization power is big, therefore is got rid of to grading wheel periphery to grader side wall, and be no longer centrifuged
The influence of power, fall under nature crush continue to crush in host or under fall on discharge port and be collected；Small or light material by
Centrifugal force effect is small, hovers inside grading wheel, is drawn windage by air-introduced machine and be taken to eminence, moves along pipeline to next
It is graded or collects in component.
Existing grading wheel upper surface is generally level design, and because its center of gravity is higher, therefore running speed is not high, and generally 4500
Rpm, higher revolving speed can bring a series of problems, such as higher mechanical fatigue is with vibrating because of the limitation of its structure.And it is lower
Revolving speed may not apply in the application of ultra tiny and high precision
There are mainly two types of existing grading wheels, and one is the grading wheel without grading wheel back blades, another kind, which is that band is independent, to be added
The grading wheel of the grading wheel back blades of dress.Without the grading wheel of grading wheel back blades, it is primarily present grading wheel labyrinth and is prone to wear,
The problems such as bulky grain control effect is undesirable；The grading wheel for the grading wheel back blades that band independently installs additional, because its later period is installed additional, leaf
Piece thickness is thicker, and resistance when operation is higher, from using effect for, this grading wheel cannot be used for high precision and ultra tiny
In.
Summary of the invention
In order to solve the above technical problem, the present invention provides a kind of new type of airflow pulverizing grading machines, characterized by comprising:
Grader labyrinth with adding pressure type hermetic seal and the centre of gravity grading wheel with integral type accessory lobes flow deflector, the grader labyrinth packet
It includes: classification cover plate, labyrinth, high pressure admission mouth, compressed air air duct, institute under labyrinth, hermetic seal air duct, grader on grader
It states centre of gravity grading wheel and is installed on classification cover plate, maintain gap between the classification cover plate and centre of gravity grading wheel, institute
Stating gap is hermetic seal air duct, and air filtering plug is equipped in the high pressure admission mouth, and the centre of gravity grading wheel includes: classification
Take turns main shaft, classification impeller blade, grading wheel gusset, centre of gravity grading wheel top layer grading wheel gusset and grading wheel main shaft top
There are distance, the distance between top layer's grading wheel gusset and grading wheel main shaft are center of gravity sinking section, top layer point
Step cone gusset is connect with second layer grading wheel gusset by sunk type supporting rib, and the sunk type supporting rib is around the space gone out
For peaceful dead zone, the classification impeller blade includes: grading wheel primary blades, grading wheel back blades, the grading wheel primary blades and
Grading wheel back blades is the blade construction of integral type, and the channelization angle on the grading wheel back blades is water conservancy diversion wedge angle, the classification
The angle for taking turns the water conservancy diversion wedge angle of back blades is 33 degree of acute angles.
Preferably, the included angle of the grading wheel gusset and sunk type supporting rib is 40-45 degree.
Preferably, the pure air pressure that the high pressure admission mouth is squeezed into is 1kg-2kg.
Preferably, the compressed air air duct is provided with multiple air holes.
Preferably, the grading wheel back blades and grading wheel primary blades constitute grading wheel blade body, the classification impeller blade
Body is laser engraving blade construction.
Preferably, the grading wheel back blades and grading wheel primary blades constitute grading wheel blade body, the grading wheel
Blade body is laser engraving blade construction.
Compared with prior art, it crushes and divides the invention has the following beneficial effects: a kind of new type of airflow that the present invention uses
Grade machine, grading wheel water conservancy diversion guiding role is more preferable, forces flow conductivity more prominent, effectively reduces the mill in grading wheel labyrinth
Damage, while because its channelization angle is sharper keen, the precision of classification is higher, and fineness is thinner, and the adding pressure type hermetic seal labyrinth of use can have
Effect reduces the abrasion in labyrinth, and material residual and accumulation at labyrinth is effectively reduced, significantly avoids grading wheel locking.Its air inlet is adopted
Pressure-air, pressure can be adjusted voluntarily, be suitable for the application of the biggish material of specific gravity.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of centre of gravity grading wheel of the present invention；
Fig. 2 is accessory lobes flow deflector structure schematic diagram of the present invention；
Fig. 3 is accessory lobes flow deflector comparative structure schematic diagram in the prior art,
Fig. 4 is the structural schematic diagram in grader labyrinth in the present invention；
In figure: centre of gravity grading wheel 1, grading wheel primary blades 2, grading wheel back blades 3, water conservancy diversion wedge angle 4, grading wheel main shaft
11, impeller blade 12, grading wheel gusset 13, center of gravity sinking section 14, sunk type supporting rib 15, peaceful dead zone 16, classification cover are classified
Plate 21, high pressure admission mouth 22, compressed air air duct 23, labyrinth 26 under labyrinth 24, hermetic seal air duct 25, grader on grader.
Specific embodiment
The present invention is described further below in conjunction with attached drawing:
Embodiment:
As shown in attached Fig. 1 to Fig. 4
A kind of new type of airflow pulverizing grading machine of the invention, comprising: centre of gravity grading wheel 1, grading wheel primary blades 2, classification
Take turns back blades 3, water conservancy diversion wedge angle 4, traditional blades 5, traditional back blades 6, traditional channelization angle 7, grading wheel main shaft 11, classification impeller blade
12, grading wheel gusset 13, center of gravity sinking section 14, sunk type supporting rib 15, peaceful dead zone 16, classification cover plate 21, high pressure admission
Mouthfuls 22, compressed air air duct 23, labyrinth 26, the centre of gravity classification under labyrinth 24, hermetic seal air duct 25, grader on grader
Wheel is installed on classification cover plate, and gap is maintained between the classification cover plate and centre of gravity grading wheel, and the gap is airtight
Air duct is sealed, air filtering plug is installed in the high pressure admission mouth, the centre of gravity grading wheel includes: grading wheel main shaft, classification
Impeller blade, grading wheel gusset, centre of gravity grading wheel top layer grading wheel gusset and grading wheel main shaft top there are distance,
The distance between described top layer's grading wheel gusset and grading wheel main shaft are center of gravity sinking section, top layer's grading wheel gusset and the
Two layers of grading wheel gusset are connected by sunk type supporting rib, and the sunk type supporting rib is peaceful dead zone around the space gone out,
The grading wheel primary blades and grading wheel back blades are the blade construction of integral type, the channelization angle on the grading wheel back blades
For water conservancy diversion wedge angle, the angle of the water conservancy diversion wedge angle of the grading wheel back blades is 33 degree of acute angles.
The further setting of the present invention are as follows: the included angle of the grading wheel gusset and sunk type supporting rib is 40-45
Degree；
The pure air pressure that the high pressure admission mouth is squeezed into is 1kg-2kg；
The compressed air air duct is provided with multiple air holes；
The grading wheel back blades and grading wheel primary blades constitute grading wheel blade body, and the grading wheel blade body is laser
Carve blade construction；
The grading wheel back blades and grading wheel primary blades constitute grading wheel blade body, and the grading wheel blade body is
Laser engraving blade construction.
The assembly assembling of centre of gravity grader is as shown in figure 4, driving member grading wheel is installed on classification cover plate, Zhi Jianliu
There is certain gap, form hermetic seal air duct, in no external air inlet, air duct air turbulence and belongs to primary mixture,
Hermetic seal interlayer cannot be formed completely, and has certain abrasion to upper and lower labyrinth.It is sealed using Self-absorption type air, sucking normal pressure is empty
When gas, in application biggish for specific gravity, effect is unobvious.The increased adding pressure type air inlet of the present invention, is squeezed into centainly by outside
The pure air of pressure, generally one to two kilogram of pressure can be resetted according to material ratio and be saved.Pressure-air enters compressed air wind
Behind road, internal there are also multiple air holes, uniformly convey pure compressed air to hermetic seal air duct from surrounding.The air of higher pressure supports
Resist, the ability that avoids material from entering hermetic seal air duct it is stronger, and air duct air is not influenced by internal circulating current, is pure air
And steady air flow, the stability of equipment operation is helped to improve, failure probability is greatly reduced.
Back blades is to increase a water conservancy diversion guide angle, this angle on the basis of shape more regular grading wheel primary blades
It is exactly back blades.When grading wheel high-speed rotation forms centrifugal force, air-flow and material are by centrifugal forces affect, by passing through inside grading wheel
It is thrown away in blade, when being oriented to back blades without water conservancy diversion, primary mixture is to throw away at random, and position is not fixed, and disturbs grader
Internal circulating current, causes effectiveness of classification and stability to be greatly affected.The presence of this back blades, inside grading wheel
Primary mixture, which all summarizes, to be concentrated at the top of grading wheel, is oriented to, is thrown away material along 33 degree of acute angles of water conservancy diversion wedge angle, pole through back blades
It does not interfere between each other in the good multiple fluid field of forces maintained inside grading wheel.The integral type back blades surfacing of this case,
It is smooth, and back blades is welded in primary blades traditional classification impeller blade and acute angle is not sharp, guiding role is limited, and logical
There are steps for road.And the blade of this case is used, and movement is crossed there is no step when primary mixture passes through herein, it is directly smooth
Material is got rid of, the abrasion of back blades is avoided, maintains the processing purity of material.
Sunk type grading wheel master is to be improved to tilt by traditional planar design by the most upper one layer of reinforcing rib of grading wheel
Sunk type and second layer link of boards.After sunk type supporting rib, a sinking clearance zone is createed to grading wheel, on the one hand
The decentralization for making whole grading wheel, the stability to run at high speed is more preferable, and grading wheel is made to can reach higher revolving speed, to adapt to
Thinner and more accurate classification requires, and in the material that processing also requires that, only needs to be set as traditional again using this grading wheel
It is classified the 70% of wheel speed, the mechanical fatigue of equipment operation is reduced, extends service life.On the other hand also make in grading wheel
Portion space increases, and keeps interior circulation of the material inside grading wheel more abundant, helps to improve the dispersibility of material
Using technological invention of the present invention or those skilled in the art under the inspiration that the technology of the present invention is invented, if
Similar technological invention is counted out, and reaches above-mentioned technical effect, is to fall into protection scope of the present invention.
Claims (6)
1. a kind of new type of airflow pulverizing grading machine, characterized by comprising: grader labyrinth and band one with adding pressure type hermetic seal
The centre of gravity grading wheel of body formula accessory lobes flow deflector, the grader labyrinth includes: classification cover plate, labyrinth on grader, airtight
Labyrinth, high pressure admission mouth, compressed air air duct under air duct, grader are sealed, the centre of gravity grading wheel is installed on classification cover plate,
Gap is maintained between the classification cover plate and centre of gravity grading wheel, the gap is hermetic seal air duct, the high pressure admission
Air filtering plug is installed, the centre of gravity grading wheel includes: grading wheel main shaft, classification impeller blade, grading wheel gusset, institute in mouthful
Stating centre of gravity grading wheel top layer grading wheel gusset, there are distance, top layer's grading wheel muscle with grading wheel main shaft top
The distance between plate and grading wheel main shaft are center of gravity sinking section, under top layer's grading wheel gusset and second layer grading wheel gusset pass through
Heavy formula supporting rib connection, the sunk type supporting rib are peaceful dead zone around the space gone out, and the classification impeller blade includes: point
Step cone primary blades, grading wheel back blades, the grading wheel primary blades and grading wheel back blades are the blade construction of integral type, institute
Stating the channelization angle on grading wheel back blades is water conservancy diversion wedge angle, and the angle of the water conservancy diversion wedge angle of the grading wheel back blades is 33 degree sharp
Angle.
2. a kind of new type of airflow pulverizing grading machine according to claim 1, it is characterised in that the grading wheel gusset with
The included angle of sunk type supporting rib is 40-45 degree.
3. a kind of new type of airflow pulverizing grading machine according to claim 1, it is characterised in that the high pressure admission mouth is squeezed into
Pure air pressure be 1kg-2kg.
4. a kind of new type of airflow pulverizing grading machine according to claim 1, it is characterised in that the compressed air air duct is set
It is equipped with multiple air holes.
5. a kind of new type of airflow pulverizing grading machine according to claim 1, it is characterised in that the grading wheel back blades and
Grading wheel primary blades constitute grading wheel blade body, and the grading wheel blade body is laser engraving blade construction.
6. a kind of new type of airflow pulverizing grading machine according to claim 1, it is characterised in that the grading wheel back blades
Grading wheel blade body is constituted with grading wheel primary blades, the grading wheel blade body is laser engraving blade construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710527612.XA CN109201483A (en) | 2017-06-30 | 2017-06-30 | A kind of new type of airflow pulverizing grading machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710527612.XA CN109201483A (en) | 2017-06-30 | 2017-06-30 | A kind of new type of airflow pulverizing grading machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109201483A true CN109201483A (en) | 2019-01-15 |
Family
ID=64992085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710527612.XA Pending CN109201483A (en) | 2017-06-30 | 2017-06-30 | A kind of new type of airflow pulverizing grading machine |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU565931B2 (en) * | 1983-11-29 | 1987-10-01 | N P P "Techenegro" | Vortex generator for centrifugal deduster |
| EP0747137A1 (en) * | 1995-06-08 | 1996-12-11 | OMYA GmbH | Centrifugal shifter |
| CN1179363A (en) * | 1996-10-11 | 1998-04-22 | 石川岛播磨重工业株式会社 | Classifier |
| DE50008577D1 (en) * | 1999-09-23 | 2004-12-16 | Bauermeister Verfahrenstechnik | air classifier |
| CN202219242U (en) * | 2011-08-30 | 2012-05-16 | 湖南海纳新材料有限公司 | Grader for cobaltosic oxide powder |
| CN202356167U (en) * | 2011-10-21 | 2012-08-01 | 江苏大阳光辅股份有限公司 | Vertical grinding grader with air-sealed mechanism |
| CN202629077U (en) * | 2012-06-01 | 2012-12-26 | 上海细村粉体技术有限公司 | Multistage sealing device for superfine classifier |
| CN204307826U (en) * | 2014-12-02 | 2015-05-06 | 江苏浩博新材料股份有限公司 | Grading wheel structure |
-
2017
- 2017-06-30 CN CN201710527612.XA patent/CN109201483A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AU565931B2 (en) * | 1983-11-29 | 1987-10-01 | N P P "Techenegro" | Vortex generator for centrifugal deduster |
| EP0747137A1 (en) * | 1995-06-08 | 1996-12-11 | OMYA GmbH | Centrifugal shifter |
| CN1179363A (en) * | 1996-10-11 | 1998-04-22 | 石川岛播磨重工业株式会社 | Classifier |
| DE50008577D1 (en) * | 1999-09-23 | 2004-12-16 | Bauermeister Verfahrenstechnik | air classifier |
| CN202219242U (en) * | 2011-08-30 | 2012-05-16 | 湖南海纳新材料有限公司 | Grader for cobaltosic oxide powder |
| CN202356167U (en) * | 2011-10-21 | 2012-08-01 | 江苏大阳光辅股份有限公司 | Vertical grinding grader with air-sealed mechanism |
| CN202629077U (en) * | 2012-06-01 | 2012-12-26 | 上海细村粉体技术有限公司 | Multistage sealing device for superfine classifier |
| CN204307826U (en) * | 2014-12-02 | 2015-05-06 | 江苏浩博新材料股份有限公司 | Grading wheel structure |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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Application publication date: 20190115 |