Process for environmentally safe destruction of pyrotechnic material

US5495063A · kind A · utility

Assignee

• Buck Werke GmbH & Co. · DE

Inventors

• Hans E. Magenheimer · Badenweiler, DE
• Roland Traute · Staufen, DE
• Wolfgang Simon · Wuppertal, DE

Key dates

• Filing date: Jun 28, 1993
• Grant date: Feb 27, 1996
• Expiry date: Jun 28, 2013

Classification

• Technology area (CPC F): Mechanical Engineering; Lighting; Heating
• CPC primary: F23J2219/40
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

In order to work up pyrotechnical material, I. the pyrotechnical material is burned in a controlled manner, the slag is optionally allowed to continue reacting and the crude gas formed is passed through a high-temperature region in which the gas is exposed to a temperature of at least 1200.degree. C. over a predetermined period in order to decompose organic substances still present; II. the crude gas formed during the combustion is cooled to a temperature below 400.degree. C.; III. the crude gas is purified under dry conditions by first feeding it into a preliminary separator, coarse particles being separated off, and then feeding the crude gas via fine dust filters in order to separate off finely divided solids and/or IV. the crude gas is optionally purified under wet conditions by first passing it through a rotary scrubber and then passing it via one or more absorption units and V. the purified gas is released as waste air.