Screening machine for superfine powder
US9180492B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 18, 2013 |
| Grant date | Nov 10, 2015 |
| Priority date | — |
| Expiry date | May 29, 2033 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB07B7/06
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A screening machine for superfine powder. The screening machine includes a casing, a screen drum, a funnel, a negative pressure chamber, a rotary air spray pipe, a drive motor, a blast pipe, and a feed pipe. The screen drum is disposed in the middle part of the inner cavity of the casing. The funnel is disposed beneath the casing. The opening of the screen drum is arranged on the bottom of the screen drum and communicates with the upper opening of the funnel. The inner cavity of the casing communicates with the external induced draft fan via the negative pressure chamber disposed on the upper part of the casing. The rotary air spray pipe is arranged in the space between the screen drum and the casing. The middle part of the transverse pipe is connected via a transmission with the drive motor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.