CN204486270U - Centrifugal classifier - Google Patents
Centrifugal classifier Download PDFInfo
- Publication number
- CN204486270U CN204486270U CN201420808755.XU CN201420808755U CN204486270U CN 204486270 U CN204486270 U CN 204486270U CN 201420808755 U CN201420808755 U CN 201420808755U CN 204486270 U CN204486270 U CN 204486270U
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- China
- Prior art keywords
- disk body
- inner barrel
- bulk cargo
- back material
- material hole
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Abstract
The utility model discloses a kind of centrifugal classifier, comprise outer cylinder body and inner barrel, in described inner barrel, main shaft is provided with bulk cargo dish, inner core body wall is provided with shutter, on described inner core body wall, the position concordant with bulk cargo dish is provided with back material hole, be provided with check valve in described back material hole, be provided with filter screen between described outer cylinder body inwall and inner barrel outer wall, described filter screen is concordant with back material hole.The centrifugal classifier of this structure, has grinding efficiency high, the advantage that grading effect is good.
Description
Technical field
The utility model relates to a kind of centrifugal classifier.
Background technology
Powder concentrator is one of key equipment of pulverized coal preparation system, be widely used in the industry such as building materials and electric power, utilize the difference of the particle of different-grain diameter stressing conditions in air dielectric to carry out classification to powder granule, its performance directly affects safety and the economical operation of whole system.Powder concentrator common is at present centrifugal powder concentrator.Material at a high speed enters powder concentrator by charging aperture, and power set generally adopt reductor, drives main shaft and drive large and small fan blade by transmission device, makes material particles be subject to the effect of centrifugal force and air flow power and classification, and then separates meal and fine powder.
Existing centrifugal classifier, grinding efficiency is poor, and grading effect is bad, makes to mix fine powder in meal, mixes meal in fine powder.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of centrifugal classifier, can improve the efficiency selecting powder, ensures grading effect.
The utility model is solved the problem by following technological means: a kind of centrifugal classifier, comprise outer cylinder body and inner barrel, in described inner barrel, main shaft is provided with bulk cargo dish, inner core body wall is provided with shutter, on described inner core body wall, the position concordant with bulk cargo dish is provided with back material hole, be provided with check valve in described back material hole, be provided with filter screen between described outer cylinder body inwall and inner barrel outer wall, described filter screen is concordant with back material hole.
Further, described bulk cargo dish comprises disk body and lower disk body, spring is provided with between described upper disk body and lower disk body, described upper disk body is vertically provided with positioning through hole, described lower disk body is provided with straight up through positioning through hole backstay, circumference that described lower disk body keeps to the side is evenly distributed with polylith fin, and described fin upwards runs through disk body and is slidably connected with upper disk body.
The beneficial effects of the utility model: centrifugal classifier of the present utility model, comprise outer cylinder body and inner barrel, in described inner barrel, main shaft is provided with bulk cargo dish, inner core body wall is provided with shutter, on described inner core body wall, the position concordant with bulk cargo dish is provided with back material hole, be provided with check valve in described back material hole, be provided with filter screen between described outer cylinder body inwall and inner barrel outer wall, described filter screen is concordant with back material hole.The centrifugal classifier of this structure, has grinding efficiency high, the advantage that grading effect is good.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further described.
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of bulk cargo dish;
Fig. 3 is that bowing of bulk cargo dish sees schematic diagram.
Detailed description of the invention
Below with reference to accompanying drawing, the utility model is described in detail, as shown in Figure 1: the centrifugal classifier of the present embodiment, comprise outer cylinder body 1 and inner barrel 2, in described inner barrel, main shaft 3 is provided with bulk cargo dish 4, described main shaft is also provided with big blade and little fan blade, inner core body wall is provided with shutter 5, on described inner core body wall, the position concordant with bulk cargo dish is provided with back material hole 6, check valve 7 is provided with in described back material hole, be provided with filter screen 8 between described outer cylinder body inwall and inner barrel outer wall, described filter screen is concordant with back material hole.Powder process is selected to be: material enters bulk cargo dish from charging aperture, main axis drives bulk cargo disc spins, material is scattered, big blade rotates and produces downward air-flow between inside and outside cylindrical shell, inner barrel is entered through shutter, little fan blade produces air-flow upwards at inner barrel internal rotating, and material powders turns rising at material disc centrifugal force and air flow power backspin.Due to weight differential that is thick, fine powder, thinner powder rises on inner barrel more than edge, and arrive under big blade centrifugal action between inside and outside cylindrical shell, warp collides with outer cylinder body inwall and falls, and is collected by the cone bucket that gathers materials of outer cylinder body and is discharged outside powder concentrator.Thicker powder stays inner barrel inside, under little fan blade centrifugal action, collides and fall with inner barrel inwall, is collected by the cone bucket that gathers materials of inner barrel and is discharged outside powder concentrator.When being mixed with meal in fine powder, meal can not pass from filter screen, under the wind-force effect that meal produces at big blade, flows back into bulk cargo dish to select again point via back material hole.In sum, the centrifugal classifier of this structure, has grinding efficiency high, the advantage that grading effect is good.
As the further improvement of technique scheme, as Figure 2-3, described bulk cargo dish comprises disk body 401 and lower disk body 402, spring 43 is provided with between described upper disk body and lower disk body, described upper disk body is vertically provided with positioning through hole 44, described lower disk body is provided with straight up through positioning through hole backstay 45, circumference that described lower disk body keeps to the side is evenly distributed with polylith fin 42, and described fin upwards runs through disk body and is slidably connected with upper disk body.This kind of structure, material is on disk body, when material is many, amount of spring compression is large, and the size that fin exposes disk body is also large, namely to the size also corresponding increase of material effect, material dispersion effect can be improved further, the size requirements stoping material to spread out along fan-shaped track can be met simultaneously.
What finally illustrate is, above embodiment is only in order to illustrate the technical solution of the utility model and unrestricted, although be described in detail the utility model with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can modify to the technical solution of the utility model or equivalent replacement, and not departing from aim and the scope of technical solutions of the utility model, it all should be encompassed in the middle of right of the present utility model.
Claims (2)
1. a centrifugal classifier, comprise outer cylinder body (1) and inner barrel (2), in described inner barrel, main shaft (3) is provided with bulk cargo dish (4), inner core body wall is provided with shutter (5), it is characterized in that: on described inner core body wall, the position concordant with bulk cargo dish is provided with back material hole (6), check valve (7) is provided with in described back material hole, be provided with filter screen (8) between described outer cylinder body inwall and inner barrel outer wall, described filter screen is concordant with back material hole.
2. centrifugal classifier according to claim 1, it is characterized in that: described bulk cargo dish comprises disk body (401) and lower disk body (402), spring (43) is provided with between described upper disk body and lower disk body, described upper disk body is vertically provided with positioning through hole (44), described lower disk body is provided with straight up through positioning through hole backstay (45), circumference that described lower disk body keeps to the side is evenly distributed with polylith fin (42), and described fin upwards runs through disk body and is slidably connected with upper disk body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420808755.XU CN204486270U (en) | 2014-12-19 | 2014-12-19 | Centrifugal classifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420808755.XU CN204486270U (en) | 2014-12-19 | 2014-12-19 | Centrifugal classifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204486270U true CN204486270U (en) | 2015-07-22 |
Family
ID=53565565
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420808755.XU Expired - Fee Related CN204486270U (en) | 2014-12-19 | 2014-12-19 | Centrifugal classifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204486270U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105195424A (en) * | 2015-09-28 | 2015-12-30 | 卢存光 | Centrifugal screen type particle separator |
-
2014
- 2014-12-19 CN CN201420808755.XU patent/CN204486270U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105195424A (en) * | 2015-09-28 | 2015-12-30 | 卢存光 | Centrifugal screen type particle separator |
| CN105195424B (en) * | 2015-09-28 | 2018-06-19 | 卢存光 | A kind of centrifugal screen type grain separating machine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150722 Termination date: 20151219 |
|
| EXPY | Termination of patent right or utility model |