Device for performing chemical and/or physical reactions between a solid material and a gas

US8435453B2 · kind B2 · utility

Assignee

• Polysius AG

Inventors

• Verena Georg · Herdecke, DE
• Detlev Kupper · Telgte, DE
• Andreas Hoppe · Hof Perlberg, DE
• Heinz-Werner Thiemeyer · Ennigerloh, DE
• Daniel Klegraf · Lippstadt, DE
• Thomas Deck · Wolfach, DE
• Stefanie Richter · Oelde, DE
• Luis Lagar Garcia · Oviedo, ES

Key dates

• Filing date: Jun 25, 2008
• Grant date: May 7, 2013
• Expiry date: Oct 25, 2028

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F28F13/06
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

A device for performing chemical and/or physical reactions between a solid material and a gas, especially for preheating, cooling and/or calcining fine-grained materials has at least three stages arranged one above the other, each stage comprising the following components: a. a gas-solids suspension duct for conducting a gas-solids suspension, b. means for separating the delivered solid material from the delivered gas, c. a solids duct for discharging the separated solid material, d. and a gas duct for discharging the separated gas, the gas duct of one stage merging into the gas-solids suspension duct of the next-higher stage and the solids duct of one stage joining the gas-solids suspension duct of the next lower stage. In addition, the junction of the solids duct and the gas-solids suspension duct of the third or a higher stage is provided below the highest point of the gas-solids suspension duct arranged two stages lower.