Tornado-type separator

US4272260A · kind A · utility

Assignee

• Kraftwerk Union Aktiengesellschaft · DE

Inventors

• Heinrich Klein · Niedernhausen, DE
• Rudolf Pieper · Erlangen, DE
• Eduard Weber · Nuremberg, DE

Key dates

• Filing date: May 7, 1979
• Grant date: Jun 9, 1981
• Expiry date: May 7, 1999

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B04C7/00
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

In a tornado-flow vortex generator for separating particulates from gases, having a cylindrical vortex chamber, an inlet tube for raw gas coaxially disposed in the vortex chamber and terminating in a nozzle for providing an advance rotation in a flow of the raw gas therethrough, a hopper diaphragm surrounding the inlet tube and formed, in vicinity of the vortex-chamber casing, with an annular particulate-discharge slot communicating with a space within a hopper, a clean-gas outlet disposed in the vortex chamber spaced from and opposite the raw-gas inlet tube, an auxiliary-gas outlet surrounding the clean-gas outlet, and an auxiliary-gas inlet disposed at the vortex-chamber casing for blowing auxiliary gas into the vortex chamber at an inclination and tangentially to the casing thereof and connected by a blower to the auxiliary-gas outlet, the improvement includes a line having valve means and connecting the hopper space with a location of the vortex generator at which a pressure exists which is lower than the pressure in the hopper space.