The present application relates to the field of
metal manufacturing, in particular to a kind of in-furnace
aluminium ash treatment device and its operating method, including cover and the top cover fixedly arranged on the upper end of cover, cover and top cover form
waste gas recovery storehouse, top cover inside top end is fixedly arranged with connecting
pipe, connecting
pipe outside is provided with the isolation
barrel also fixedly connected with top cover top end, isolation
barrel outside is equipped with hollow
barrel, hollow barrel upper end is fixedly connected with top cover top end, hollow barrel outside is provided with the bending type annular plate, cover inside is provided with lifting cover, lifting cover is used to reduce
waste gas collection area.The present application can only realize the descent of lifting cover by the change of heat, so as to achieve the effect of reducing the area of
waste gas collection, meanwhile, the structure is not provided with any electrically-driven facility, only rely on high temperature of waste gas itself to realize the above effect, not only reduce the cost of use, but also can utilize high temperature in waste gas again.