Loading material preheater, with replaceable casing wall portions

摘要

Invention Patent: B "PREACHER OF LOADING MATERIAL, WITH SUBSTITUABLE WALL PORTIONS" D. The invention relates to a device for preheating the loading of raw material to preheat a load (60) to be loaded into a furnace vessel (3) and comprising a chimney (9) attached to a structure (20 ). In the upper area the chimney has a loading hole that can be closed (61) for the load (60) and a gas outlet, and in its lower area it has a distribution opening for the load (60) and a gas inlet. . The chimney walls (33,35) delimit a receiving chamber (62) for the loading raw material (60) to be heated. According to the invention, the chimney walls (34, 35) are divided into chimney wall sections that are fixed to the structure (20) in such a way that they can be changed individually.