CN202438466U - Counter-current classifier - Google Patents
Counter-current classifier Download PDFInfo
- Publication number
- CN202438466U CN202438466U CN2012200701737U CN201220070173U CN202438466U CN 202438466 U CN202438466 U CN 202438466U CN 2012200701737 U CN2012200701737 U CN 2012200701737U CN 201220070173 U CN201220070173 U CN 201220070173U CN 202438466 U CN202438466 U CN 202438466U
- Authority
- CN
- China
- Prior art keywords
- grading wheel
- labyrinth ring
- classifier
- classification
- sizer
- Prior art date
- 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.)
- Expired - Lifetime
Links
Images
Landscapes
- Combined Means For Separation Of Solids (AREA)
Abstract
The utility model discloses a counter-current classifier and belongs to the technical field of classifiers. The counter-current classifier comprises a classifier body, a classification turbine driven by a power device is installed in the classifier body, a whirling feeding cover is installed on the classifier body, and a feeding inlet is arranged on the whirling feeding cover along a tangential direction of the classifier body and is arranged at the classification turbine position. The counter-current classifier solves the problems of low classification accuracy, low extraction rate of fine powder and wide particle size distribution of finished products of viscous materials and materials with a fineness of D97<=2 microns, and is widely applied to fine classification of solid particles.
Description
Technical field
The utility model relates to a kind of pressed powder grading plant, relates in particular to a kind of countercurrent sizer.
Background technology
Traditional dry type gas flow sizing machine is made up of motor, grading wheel, body etc., and it is through the rotating speed of regulating grading wheel and is equipped with the reasonable secondary air intake and realizes the effective classification to material.But there are shortcomings such as treating capacity is little, effectiveness of classification is low, the fine powder recovery rate is low, bulky grain control is not strict in traditional gas flow sizing machine, causes difficulty thereby make businessman to micro mist.
At present both at home and abroad dry classification is commonly used has two kinds in horizontal grader and vertical split pole machine; Generally all there are defectives such as effectiveness of classification is low, the fine powder recovery rate is low, the finished product size distribution is wide in tradition horizontal grader and vertical classification, and both effects when handling viscous material and D97≤2um material are especially not good.
The utility model content
The utility model technical problem to be solved is: a kind of countercurrent sizer is provided, to solve viscous material and technical problem that D97≤2um stock grading precision is low, the fine powder recovery rate is low, the finished product size distribution is wide.
For solving the problems of the technologies described above; The technical scheme of the utility model is: countercurrent sizer, comprise body, and said body is provided with the grading wheel that is driven by power set; Said grading wheel is positioned at said body; Said body is provided with whirlwind charging cover, and said whirlwind charging cover is provided with charging aperture, and said charging aperture is provided with along the tangential of said body and is positioned at said grading wheel position.
As a kind of improvement; Be provided with first labyrinth ring and second labyrinth ring that cooperatively interact between said grading wheel and the body; Said first labyrinth ring is fixedly installed on the said body and said first labyrinth ring is provided with annular groove, and said second labyrinth ring is fixedly installed on the said grading wheel and said second labyrinth ring is provided with annular ridge; Said body is provided with inlet channel, and said inlet channel is communicated with said annular groove.
As further improvement; Said body is provided with the secondary air device; Said secondary air device comprises the orifice plate that is fixedly installed on the body; The outside of said orifice plate is provided with cover plate, and said cover plate is provided with and the corresponding through hole in the hole site of said orifice plate, and said cover plate is connected through securing member with orifice plate.
As further improvement, said body is provided with inspection door, and the position of said inspection door and charging aperture is relative.
As further improvement, the blade surface of said grading wheel is provided with carburized layer.
Adopted technique scheme, the beneficial effect of the utility model is: because body is provided with the whirlwind charging cover that has charging aperture, and charging aperture is provided with along the tangential of body and is positioned at the grading wheel position; Material gets into classification inside through tangential direction; At first quicken, break up through the grading wheel of rotation at a high speed again, material is better disperseed through air-flow; Effectiveness of classification and fine powder recovery rate have been improved, especially the material of calculated viscosity material and D97≤2um.
Owing to be provided with first labyrinth ring and second labyrinth ring that cooperatively interacts between grading wheel and the body; Adopt the labyrinth seal mode between first labyrinth ring and second labyrinth ring; And designed inlet channel and be communicated with the annular groove on first labyrinth ring, made under the grading room suction function, just can produce the natural wind that flows by in the export-oriented grading room of body in the inlet channel; Both stop bulky grain and got into grading room; Control bulky grain effectively, realized self-priming hermetic seal again, solved the movable sealing problem of grading wheel and body.
Because body is provided with the secondary air device, through rotating the angle between adjustment cover plate and the orifice plate, the hole that can cover or open varying number; Obtain different intakes; And this air intake adopts natural wind fully, is different from traditional power air intake, has reduced energy resource consumption.
Because the blade surface of grading wheel is provided with carburized layer, has improved the hardness and the rigidity of blade, blade is indeformable when having guaranteed the high rotating speed of grading wheel, has prolonged the service life of grading wheel.
Description of drawings
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the enlarged drawing of A-A among Fig. 1;
Fig. 3 is the partial enlarged drawing of B portion among Fig. 1;
Fig. 4 is the partial enlarged drawing of C portion among Fig. 1;
Among the figure: 1, variable-frequency motor, 2, body, 3, grading wheel, 4, discharging opening, 5, whirlwind charging cover; 6, charging aperture, 7, the secondary air device, 8, star-like discharge valve, 9, first labyrinth ring, 10, second labyrinth ring; 11, inlet channel, 12, holding screw, 13, orifice plate, 14, cover plate.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is further specified.
Shown in Fig. 1 and Fig. 2 were common, a kind of countercurrent sizer comprised body 2; Said body 2 is provided with the grading wheel 3 that is driven by power set, and said power set are preferably variable-frequency motor 1, and said grading wheel 3 is positioned at said body 2; The blade surface of said grading wheel 3 is provided with carburized layer, has improved the hardness and the rigidity of blade, and blade is indeformable when having guaranteed the high rotating speed of grading wheel 3; Prolonged the service life of grading wheel 3, said body 2 is provided with whirlwind charging cover 5, and said whirlwind charging cover 5 is provided with charging aperture 6; The tangential of the said body 2 in said charging aperture 6 edges is provided with and is positioned at said grading wheel 3 positions, and said body 2 is provided with inspection door, and the position of said inspection door and charging aperture 6 is relative; Can open inspection door fast and observe the abrasion condition of grading wheel 3, perhaps change other accessory.
Shown in Fig. 1 and Fig. 3 are common; Be provided with first labyrinth ring 9 and second labyrinth ring 10 that cooperatively interact between said grading wheel 3 and the body 2; Said first labyrinth ring 9 is fixedly installed on the said body 2 and said first labyrinth ring 9 is provided with annular groove, and said second labyrinth ring 10 is fixedly installed on the said grading wheel 3 and said second labyrinth ring 10 is provided with annular ridge; Said body 2 is provided with inlet channel 11; Said inlet channel 11 is communicated with said annular groove, under the grading room suction function, just can produce the natural wind that flows by in the body 2 export-oriented grading rooms in the inlet channel 11; Both stop bulky grain and got into grading room; Controlled bulky grain effectively, realized self-priming hermetic seal again, solved the movable sealing problem of grading wheel 3 with body 2.Shown in Fig. 1 and Fig. 4 were common, said body 2 was provided with secondary air device 7, and said secondary air device 7 comprises the orifice plate 13 that is fixedly installed on the body 2; The outside of said orifice plate 13 is provided with cover plate 14; Said cover plate 14 is provided with and the corresponding through hole in the hole site of said orifice plate 13, and said cover plate 14 and orifice plate 13 are connected through securing member, usually; Securing member is preferably holding screw 12; Through rotating the angle between adjustment cover plate 14 and the orifice plate 13, the hole that can cover or open varying number obtains different intakes.
Its course of work is following:
As shown in Figure 1, material gets into classification inside by charging aperture 6 through tangential direction, at first quickens through air-flow; Break up through the grading wheel 3 of rotation at a high speed again, fall then, under the effect of secondary air device 7 ascending airs; In graded region, form clear and definite material diversion layer, variable-frequency motor 1 drives grading wheel 3 and rotates, and the powder of the qualified fineness that meets the classification requirement is discharged through discharging opening 4; Fine powder gets into cyclone collector, and a small amount of micro mist gets into sack cleaner and captures, and purified gas is discharged by air-introduced machine; Meal is fallen the bottom along the inwall of body 2 and is collected because gravity sends back to grading room once more with other impact energy effects, is discharged by star-like discharge valve 8.
The utility model is the material of calculated viscosity material and D97≤2um especially.
The utility model is not limited to above-mentioned concrete embodiment, and those of ordinary skill in the art is from above-mentioned design, and without performing creative labour, all conversion of having done all drop within the protection domain of the utility model.
Claims (5)
1. countercurrent sizer; Comprise body, said body is provided with the grading wheel that is driven by power set, and said grading wheel is positioned at said body; It is characterized in that; Said body is provided with whirlwind charging cover, and said whirlwind charging cover is provided with charging aperture, and said charging aperture is provided with along the tangential of said body and is positioned at said grading wheel position.
2. countercurrent sizer as claimed in claim 1; It is characterized in that; Be provided with first labyrinth ring and second labyrinth ring that cooperatively interact between said grading wheel and the body; Said first labyrinth ring is fixedly installed on the said body and said first labyrinth ring is provided with annular groove, and said second labyrinth ring is fixedly installed on the said grading wheel and said second labyrinth ring is provided with annular ridge; Said body is provided with inlet channel, and said inlet channel is communicated with said annular groove.
3. countercurrent sizer as claimed in claim 2; It is characterized in that; Said body is provided with the secondary air device, and said secondary air device comprises the orifice plate that is fixedly installed on the body, and the outside of said orifice plate is provided with cover plate; Said cover plate is provided with and the corresponding through hole in the hole site of said orifice plate, and said cover plate is connected through securing member with orifice plate.
4. countercurrent sizer as claimed in claim 3 is characterized in that said body is provided with inspection door, and the position of said inspection door and charging aperture is relative.
5. countercurrent sizer as claimed in claim 4 is characterized in that the blade surface of said grading wheel is provided with carburized layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200701737U CN202438466U (en) | 2012-02-28 | 2012-02-28 | Counter-current classifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200701737U CN202438466U (en) | 2012-02-28 | 2012-02-28 | Counter-current classifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202438466U true CN202438466U (en) | 2012-09-19 |
Family
ID=46819922
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200701737U Expired - Lifetime CN202438466U (en) | 2012-02-28 | 2012-02-28 | Counter-current classifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202438466U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102580924A (en) * | 2012-02-28 | 2012-07-18 | 山东惟远新材料装备有限公司 | Countercurrent classifier |
| CN107185837A (en) * | 2017-05-03 | 2017-09-22 | 大连理工大学 | A kind of particle grading device and its method |
-
2012
- 2012-02-28 CN CN2012200701737U patent/CN202438466U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102580924A (en) * | 2012-02-28 | 2012-07-18 | 山东惟远新材料装备有限公司 | Countercurrent classifier |
| CN107185837A (en) * | 2017-05-03 | 2017-09-22 | 大连理工大学 | A kind of particle grading device and its method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202438467U (en) | Aluminum powder grading production line | |
| CN204170771U (en) | Oyster shell whiting grinding grading plant | |
| CN205361960U (en) | V type selection powder machine | |
| CN203842820U (en) | Vertical multi-rotor superfine micro-powder grader | |
| CN202270652U (en) | Powder concentrator for powdery material classification | |
| CN202438466U (en) | Counter-current classifier | |
| CN203304085U (en) | Isolation device in cyclone dust collector | |
| CN202893678U (en) | Novel movable and static combined rotary separator for powder coal | |
| CN204866524U (en) | Cage modle rotor formula air selection powder machine | |
| CN202377193U (en) | Multi-level classifying machine | |
| CN103721940B (en) | A kind of whirlwind clarifier | |
| CN206229683U (en) | A kind of many grading plants of big flow | |
| CN204892373U (en) | High dispersivity vortex selection powder machine | |
| CN201684726U (en) | Compelling airflow turbo classifier | |
| CN202377192U (en) | Self-split-flow classifying machine | |
| CN102580924A (en) | Countercurrent classifier | |
| CN207013298U (en) | It is a kind of from tandem air sorting machine for powder | |
| CN102513295A (en) | Self flow division type grading machine | |
| CN201389523Y (en) | High-efficiency rotor-type carbon forming powder grader | |
| CN106391219B (en) | A kind of dry-type ball mill classification device | |
| CN201702114U (en) | Classification precision adjusting device of air classifier | |
| CN204247404U (en) | Double rotational directions cyclone dust collectors | |
| CN204170952U (en) | A kind of High Efficiency Superfine powder concentrator | |
| CN207547025U (en) | A kind of horizontal high-speed precision bull grader | |
| CN209254962U (en) | A kind of vertical particle classifying mechanism and grading plant with more stage units |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120919 |
|
| CX01 | Expiry of patent term |