Protecting scraper belt trough in ash removal plant - involves sealing released when large ash or cinder lumps are conveyed on scraper belt

摘要

The scraper belt (1) comprises the ash bell (2) of the steam boiler combustion chamber funnel, the trough (3) and the scraper chain (4). Immediately behind the introduction point of the scraper chain (4) in the water bath (5) is a flap-type sealing device (6). Between the sealing device and the ash bell is a covering (7) of the trough (3) with a cover plate (8) and a frame (9). The sealing device (6) comprises a bearer part (10) firmly connected to the frame (9), a tensioning component (11), an elastic upper part (12) and a rigid lower part (13). USE/ADVANTAGE - In an ash removal plant to cool large ash or cinder lumps prior to entry in the water bath, and to conduct away directly any developing hydrogen gas.