JPS5565819A - Auxiliary combustion device for vertical incinerator - Google Patents

Abstract

PURPOSE: To ensure quick and positive drying and ignition by jetting flames of the auxiliary combustion burner tangentially and aslant downwardly toward the drying area and to enable highly efficient incineration by fully utilizing residual heat.

CONSTITUTION: The incinerator is divided into two sections, that is, the area of the hearth (2) surface located around the shaft 4 is set as drying section (drying stage retention section) 10 where the material 9 to be incinerated is dried and ignited, and the area of the hearth surface positioned closer to the incinerator wall 3 is set as natural combustion section (natural combustion stage retention section) 11 where the ignited material 9 is naturally burned. The flames of the auxiliary combustion burners 12 adapted to the incinerator wall 3 are jetted aslant symmetrically relative to the shaft 4 so that the flames will pass over the stirring arms 5 and run tangentially toward said drying section 10. High-temperature gas is supplied to the surface of the moisture-containing material 9 by the flames jetted directly to the drying section 10 to effect quick drying and positive ignition. A part of said jetted flames swirls in the incinerator by its inertia and is released through an exhaust port 8, during which period the potential heat is utilized for promoting natural combustion and the residual heat metabolizes the gas staying in the incinerator.

COPYRIGHT: (C)1980,JPO&Japio