GB1200996A - Improvements in or relating to air separators for powders and granular materials - Google Patents
Improvements in or relating to air separators for powders and granular materialsInfo
- Publication number
- GB1200996A GB1200996A GB2881768A GB2881768A GB1200996A GB 1200996 A GB1200996 A GB 1200996A GB 2881768 A GB2881768 A GB 2881768A GB 2881768 A GB2881768 A GB 2881768A GB 1200996 A GB1200996 A GB 1200996A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rotor
- casing
- fan
- gas stream
- pipe
- 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
Links
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
- B07B4/00—Separating solids from solids by subjecting their mixture to gas currents
- B07B4/02—Separating solids from solids by subjecting their mixture to gas currents while the mixtures fall
- B07B4/025—Separating solids from solids by subjecting their mixture to gas currents while the mixtures fall the material being slingered or fled out horizontally before falling, e.g. by dispersing elements
Landscapes
- Cyclones (AREA)
Abstract
1,200,996. Centrifugal separators; pneumatic classification. BRITISH "REMA" MFG. CO. Ltd. 19 May, 1969 [24 May, 1968], No. 24817/ 68. Headings B2H and B2P. A pneumatic separator for classifying particulate material comprises a pipe 7 for feeding the material to be classified to the interior of an angularly vaned rotor 12, a spinner disc 13 for flinging the material to the rotor vanes, an inner cyclone casing B with its top 4 surrounding the rotor 12, a fan 14 for producing a swirling stream of gas in the space between the casing B and the outside of the rotor 12, a passage leading from the interior of the rotor to the inlet of a circulating fan 11, an outer cyclone casing A with its top 1 surrounding the circulating fan 11, an axial pipe 16 connecting the lower part 3 of the outer casing A to the inlet of the swirling fan 14, an outlet 20 in the bottom of the inner casing B for removal of coarse particles, an outlet 19 in the bottom of the outer casing A for removal of fine particles, and a tube connected to the fan 11 and mounted in a bearing 8 and driven by a motor 10 so as to rotate the fans 11, 14, the rotor 12 and the spinner disc 13. In operation, the material is flung from between the disc 13 and an upper annular plate 15 into the swirling stream of air and is entrained thereby through the vanes of the rotor 12 in which the action of centrifugal force on the coarse particles is greater than that of the drag force of the inwardly moving gas stream so that these particles are flung outwardly in the gas stream and are separated therefrom in the inner cyclone casing, whereas the fine particles on which the action of the drag force is greater, are entrained with the gas stream into the fan 11 and flung thereby into the outer cyclone casing where they become separated from the gas stream which is recirculated via the pipe 16. A valve 17 in the pipe 16 controls the rate of circulation of the gas stream. A labyrinth seal is provided at 18. The rotor vanes are non-radial. The outlets 19, 20 are closed by receptacles or air locks so that the entire gas content is retained within the separator. In a modification, Fig. 3, vents 23 controlled by an adjustable shutter 24 are provided in the wall of the inner cyclone casing B for tapping gas from the descending gas stream in the outer casing and directing it into the inner cyclone casing so that it flows upwardly through the space between a flared end portion 21 of the pipe 16 and a conical deflector 22 and thereby removes from the descending flow of coarse particles any agglomerated fine particles entrained therein and/or any ultra-fine particles which remain in suspension in the recirculated air and direct them towards the rotor 12. Auxiliary blades 25 are provided on the upper shroud of the fan 11 to produce suction conditions so as to prevent emission of dust to the atmosphere via the gap between the tube 9 and the cover plate 2 of the outer cyclone casing.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB2481768 | 1968-05-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1200996A true GB1200996A (en) | 1970-08-05 |
Family
ID=10217705
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2881768A Expired GB1200996A (en) | 1968-05-24 | 1968-05-24 | Improvements in or relating to air separators for powders and granular materials |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1200996A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3767045A (en) * | 1970-03-18 | 1973-10-23 | Siempelkamp Gmbh & Co | Closed circuit multi-stage air classifier |
CN106404445A (en) * | 2016-09-30 | 2017-02-15 | 湖南万通科技股份有限公司 | Material reduction and division device |
CN109011855A (en) * | 2018-09-07 | 2018-12-18 | 山东大学 | A kind of hypergravity removes the device of the fine particle in gas |
CN110038688A (en) * | 2019-05-21 | 2019-07-23 | 成都建筑材料工业设计研究院有限公司 | A kind of rotor forced seal device and separator |
-
1968
- 1968-05-24 GB GB2881768A patent/GB1200996A/en not_active Expired
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3767045A (en) * | 1970-03-18 | 1973-10-23 | Siempelkamp Gmbh & Co | Closed circuit multi-stage air classifier |
CN106404445A (en) * | 2016-09-30 | 2017-02-15 | 湖南万通科技股份有限公司 | Material reduction and division device |
CN106404445B (en) * | 2016-09-30 | 2023-07-07 | 湖南万通科技股份有限公司 | Material dividing device |
CN109011855A (en) * | 2018-09-07 | 2018-12-18 | 山东大学 | A kind of hypergravity removes the device of the fine particle in gas |
CN109011855B (en) * | 2018-09-07 | 2024-04-23 | 山东大学 | Device for removing fine particles in gas by virtue of supergravity |
CN110038688A (en) * | 2019-05-21 | 2019-07-23 | 成都建筑材料工业设计研究院有限公司 | A kind of rotor forced seal device and separator |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |