CN201519665U - Pre-dispersing device for classifying powder airflow - Google Patents
Pre-dispersing device for classifying powder airflow Download PDFInfo
- Publication number
- CN201519665U CN201519665U CN2009202401167U CN200920240116U CN201519665U CN 201519665 U CN201519665 U CN 201519665U CN 2009202401167 U CN2009202401167 U CN 2009202401167U CN 200920240116 U CN200920240116 U CN 200920240116U CN 201519665 U CN201519665 U CN 201519665U
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- shuttle
- classification
- separation rotor
- classifying
- powder
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Abstract
The utility model discloses a pre-dispersing device for classifying powder airflow, the pre-dispersing device is arranged between a separated rotor and a feeding pipe in a classifying chamber, the pre-dispersing device comprises a shuttle-type body which comprises an upper shuttle body and a lower shuttle body, the upper shuttle body is fixedly connected with the separated rotor, and the outer surface of the lower shuttle body is provided with a dispersing tablet. Powder material is pre-dispersed before classification, thus improving the classifying quality and the production efficiency, reducing the wear degree of the separated rotor in the classifying chamber effectively, prolonging the service life and avoiding pollution to products.
Description
Technical field
The utility model relates to a kind of pre-dispersed device of powder air current classifying.
Background technology
Along with the development of modern technologies, the high-new sophisticated technology industry that some are relevant with powder technology has proposed more and more stricter requirement as fine ceramics, biology, chemical industry, fuel, metallurgy, building materials, food and microelectronics etc. to raw-material granularity.Require on the one hand the refinement of powder ultra micro, promptly several microns or one micron are once; Require the distribution of powder very narrow on the other hand, promptly require to concentrate to be distributed in a certain particle size range.For example: fine ceramics requires to be no more than 20% less than 4 microns mixed volumes between the 4-10 micron with zircon micropowder, the particle size distribution that is used for certain special resin on the microelectronics industry.No matter so harsh requirement is that pulverizing (as ball milling, airslide disintegrating mill) or granulation all can not directly be satisfied this requirement, generally will handle through particle classifying.Classification is that powder prepares indispensable important process link in the industry.The operation principle of powder air current classifying is: after powder material is pulverized in pulverizing chamber, enter grading room, under the effect of separation rotor, the powder material of qualified particle diameter is carried secretly to enter separation rotor and be collected into finished product by discharging opening by air-flow and is collected feed bin, underproof meal is thrown toward the classification locular wall falls back to grading room under the gravity effect bottom, is isolated by feed opening.
But when the gas phase turbine type grader that adopts carried out classification to nonmetallic mineral at present, the particle of different-grain diameter mixed in the supplied materials; often fine grained sticks on the coarse granule; cause the different-grain diameter particle agglomeration together, regular meeting powder occurs and disperses not open, and is difficult to classification effectively.Can cause rotor to wear and tear fast when the high-speed turbine rotation is carried out classification to some superhard materials on the other hand, bring pollution to product.
Summary of the invention
Technical problem to be solved in the utility model is: the pre-dispersed device that a kind of powder air current classifying is provided, carry out before to the powder material classification pre-dispersed, classification quality and production efficiency have not only been improved, and effectively reduce the wearing and tearing dynamics of separation rotor in the grading room, not only improved its service life, and can not bring pollution to product because of the chip that drops.
For solving the problems of the technologies described above, the technical solution of the utility model is: the pre-dispersed device of powder air current classifying, described pre-dispersed device is installed between the grading room interior separation rotor and feeding tube, described pre-dispersed device comprises a shuttle-type body, described shuttle-type body comprises shuttle upper body and shuttle lower body, fixedly connected with described separation rotor in described shuttle upper body, external surface is provided with dispersing tablet under the described shuttle.
Wherein, described shuttle-type body and the coaxial installation of described separation rotor.
Wherein, under the described shuttle end of body over against the outlet of described feeding tube.
After having adopted technique scheme, the beneficial effects of the utility model are: owing to be provided with a pre-dispersed device between separation rotor in grading room and the feeding tube, this pre-dispersed device comprises a shuttle-type body, and external surface is provided with dispersing tablet under the shuttle of this shuttle-type body.Enter powder material in the grading room under the air-flow effect by feeding tube, at first collide on the dispersing tablet of pre-dispersed device, dispersing tablet can be broken up the powder granule of reuniting together, fine grained is fully separated with coarse granule, and then powder is carried out classification by separation rotor, improved effectiveness of classification and classification efficiency.When the classification object was some superhard materials, the setting of pre-dispersed device had alleviated the working strength of separation rotor, effectively reduced the wearing and tearing dynamics of separation rotor, had not only improved its service life, and can not bring pollution to product because of its chip that drops.Compared with prior art, have simple to operately, classification efficiency and effectiveness of classification height in whole classification process, can drive the pre-dispersed device of shuttle-type by regulating the rotating speed of separation rotor, control partition size flexibly, have practicality widely.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Accompanying drawing is the structural representation of the utility model embodiment;
Among the figure: 1. grading room, 2. separation rotor, 3. feeding tube, 41. shuttle upper bodies, 42. shuttle lower bodies, 5. discharging opening, 6. feed opening, 7. crush box, 8. hopper.
The specific embodiment
As shown in drawings, a kind of pre-dispersed device of powder air current classifying.It is installed between grading room 1 interior separation rotor 2 and the feeding tube 3, and the material that is mainly used in being entered by feeding tube 3 in the grading room 1 carries out pre-dispersed.
This pre-dispersed device comprises a shuttle-type body, this shuttle-type body comprises shuttle upper body 41 and shuttle lower body 42, fixedly connected with separation rotor 2 by connecting rod in shuttle upper body 41, and shuttle-type body and separation rotor 2 coaxial installations, be provided with some dispersing tablets at shuttle lower body 42 outer surfaces, and shuttle lower body 42 ends are over against the outlet of feeding tube 3.Enter powder material in the grading room 1 under the air-flow effect by feeding tube 3, at first collide on the dispersing tablet of shuttle lower body 42, dispersing tablet can be broken up the powder granule of reuniting together, fine grained is fully separated with coarse granule, and then carry out classification, effectiveness of classification and classification efficiency height by 2 pairs of powders of separation rotor.Separation rotor 2 is selected cylindrical separation rotor for use in the present embodiment, makes the each several part linear velocity identical, has further improved effectiveness of classification.Under the effect of separation rotor 2, the powder material of qualified particle diameter is carried secretly to enter separation rotor and be collected into finished product by discharging opening 5 by air-flow and is collected feed bin, underproof meal is thrown toward grading room 1 sidewall falls back to grading room 1 under the gravity effect bottom, isolate by feed opening 6, feed opening 6 connects the hopper 8 of crush box 7, so the meal after the classification can enter crush box 7 automatically and pulverize, and then enter grading room 1 and carry out classification again, thereby reach purpose with the powder series classification.
The utility model has improved effectiveness of classification and classification efficiency, and when the classification object is some superhard materials, the setting of pre-dispersed device has alleviated the working strength of separation rotor 2, effectively reduce the wearing and tearing dynamics of separation rotor 2, not only improved its service life, and can not bring pollution to product because of its chip that drops.Compared with prior art, have simple to operately, classification efficiency and effectiveness of classification height in whole classification process, can drive the pre-dispersed device of shuttle-type by regulating the rotating speed of separation rotor, control partition size flexibly, have practicality widely.
Claims (3)
1. the pre-dispersed device of powder air current classifying, it is characterized in that: described pre-dispersed device is installed between the grading room interior separation rotor and feeding tube, described pre-dispersed device comprises a shuttle-type body, described shuttle-type body comprises shuttle upper body and shuttle lower body, fixedly connected with described separation rotor in described shuttle upper body, external surface is provided with dispersing tablet under the described shuttle.
2. the pre-dispersed device of powder air current classifying as claimed in claim 1 is characterized in that: described shuttle-type body and the coaxial installation of described separation rotor.
3. the pre-dispersed device of powder air current classifying as claimed in claim 1 is characterized in that: end of body is over against the outlet of described feeding tube under the described shuttle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202401167U CN201519665U (en) | 2009-10-23 | 2009-10-23 | Pre-dispersing device for classifying powder airflow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202401167U CN201519665U (en) | 2009-10-23 | 2009-10-23 | Pre-dispersing device for classifying powder airflow |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201519665U true CN201519665U (en) | 2010-07-07 |
Family
ID=42505843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202401167U Expired - Fee Related CN201519665U (en) | 2009-10-23 | 2009-10-23 | Pre-dispersing device for classifying powder airflow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201519665U (en) |
-
2009
- 2009-10-23 CN CN2009202401167U patent/CN201519665U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100707 Termination date: 20131023 |