JPS57156052A - Powder screening device - Google Patents
Powder screening deviceInfo
- Publication number
- JPS57156052A JPS57156052A JP4297281A JP4297281A JPS57156052A JP S57156052 A JPS57156052 A JP S57156052A JP 4297281 A JP4297281 A JP 4297281A JP 4297281 A JP4297281 A JP 4297281A JP S57156052 A JPS57156052 A JP S57156052A
- Authority
- JP
- Japan
- Prior art keywords
- vessel
- powder
- electrostatic
- particles
- electric field
- 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.)
- Pending
Links
Abstract
PURPOSE: To omit or simplify muddy waste water treatment and dehydrating and drying stages by fluidizing the particles of fine powder, charging these particles electrostaticlly by the friction with an electrostatic charger, passing the same through the inside of an electric field and separating these by the electrical properties of the particles.
CONSTITUTION: The pulverized coal which is ground and dried is mixed with a non- combustible gas and is blown into an electrostatic charger. The charger assumes the shape of a cyclone, has a powder blow port 28 in the upper part of a metallic cylindrical vessel 27 and a blow-out port 29 in the central part and is coated with an electrostatic charging member 30 on the inside wall surface of the vessel 27 and the outside circumferential surface of the port 29; therefore, the fine powder blown therein falls while swirling in the vessel 27, and is charged by the contact and friction with the member 30. This powder is discharged from the lower part of the vessel and is fed to an electrostatic separator. The separator generates a DC electric field between electrode plates 34A and 34B facing each other and generates a moving electric field by applying multiphase AC voltages to an electrode plate 35; therefore, the charged powder is separated under conveyance according to the respective polarities and charge quantity and is conducted to capturing pipes 36W38.
COPYRIGHT: (C)1982,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4297281A JPS57156052A (en) | 1981-03-24 | 1981-03-24 | Powder screening device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4297281A JPS57156052A (en) | 1981-03-24 | 1981-03-24 | Powder screening device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS57156052A true JPS57156052A (en) | 1982-09-27 |
Family
ID=12650946
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4297281A Pending JPS57156052A (en) | 1981-03-24 | 1981-03-24 | Powder screening device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57156052A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5070768A (en) * | 1988-07-15 | 1991-12-10 | Metal Leve S.A. | Articulated piston |
-
1981
- 1981-03-24 JP JP4297281A patent/JPS57156052A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5070768A (en) * | 1988-07-15 | 1991-12-10 | Metal Leve S.A. | Articulated piston |
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