The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 30, 1982
Filed:
Apr. 16, 1981
Klaus-Jurgen Hinger, Stuttgart, DE;
Werner & Pfleiderer, Stuttgart, DE;
Abstract
In a procedure and an installation for the incinerating of sludge, predried sludge is dried to residual moisture by the addition of heat in a first processing step and then pyrolized by the continued addition of heat and the exclusion of air in a second processing step, with the pyrolysis gas obtained being used at least partially to generate the hot fumes required for heat input. To incinerate sludge in a way which is compatible with the environment, saves energy and is inexpensive, the predried sludge is carried co-current with the hot fumes in the first processing step and the so-dried sludge is then, in the second step, carried in countercurrent flow to those same fumes. An evaporation worm-gear machine (1) with a worm shaft (9) capable of being driven by rotation, with at least one spiral coil (14), which is placed in a housing (3) serves to carry out the first processing step, while a pyrolysis rotation cylindrical reactor (2) with an opposite direction of movement of the material which is in the hollow-built worm shaft (9) serves to effect the second processing step.