Title:
CYCLONE-TYPE FINE SCREEN DEVICE
Document Type and Number:
WIPO Patent Application WO/1995/032057
Kind Code:
A1
Abstract:
The invention relates to a cyclone-type fine screen device, comprising an overflow tube (2), a feed portion (3), a lower housing (6) of a screen cylinder (5), and a cone section (7). The invention is characterized by having the screen cylinder (5) and integral cylindrical portion (4). An upper flange and a lower flange of the screen cylinder (5) are respectively located at an upper stopper of the portion (4) and an upper stopper on an inner ring of the lower housing (6). The device has the advantages of a large load-screening ability, a high grading efficiency, a compact structure, a lower cost and energy consumption, a facilitating assembly and disassembly of the cylinder (5), and a long-lasting of the cylinder (5). The device is suited for grading and concentrating for sodium hydroxide or other fine particle materials.
Inventors:
FANG ZHIGANG (CN)
SONG FENGGANG (CN)
SONG FENGGANG (CN)
Application Number:
PCT/CN1995/000044
Publication Date:
November 30, 1995
Filing Date:
May 19, 1995
Export Citation:
Assignee:
BEIJING GEN RES INST MINING (CN)
FANG ZHIGANG (CN)
SONG FENGGANG (CN)
FANG ZHIGANG (CN)
SONG FENGGANG (CN)
International Classes:
B04C5/10; (IPC1-7): B04C5/10; B07B7/086
Foreign References:
| US1807891A | 1931-06-02 | |||
| US4986900A | 1991-01-22 | |||
| US4279743A | 1981-07-21 |
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