It is applied to large size doghouse. A couple of chargers are linked together so as to reduce their distance. In this way, it can well solve the batch off-track problem and cancel the water drum in the middle of batch tank. The batch could be evenly charged and its operation is very stable and continuous. By absorbing the batch charger technology at home and abroad, our company has tried some innovation on the batch charger in terms of its shovel plate quality and structure, thus improved its high temperature resistance in production, working stability and continuity. There are two types of batch chargers, namely arc blanket charger and inclining blanket charger.