Welding and assembling method for huge mining mill barrel

The invention relates to a welding and assembling method for a huge mining mill barrel, which comprises the controlling of following manufacturing content for the cutting of steel plate beveled edges by utilizing a plug weld method: the controlling of the mode of steel plate connecting material; the controlling of steel plate rolling and moudling; the controlling of welding deformation; and the controlling of barrel swing and turning mode. Compared with the prior X-shaped beveled edges, the type of the bevel for welding in the invention reduces the work amount and the wielding deformation and is suitable for observation and operation of an electric welder. The invention solves the limit of device hoisting condition, can not follow the prior art of connecting gross materials firstly and then cutting pure materials, and creates an efficient operation method of planing pure materials and connecting pure materials. As for the quality controlling of the rolling and moulding of the steel plate with large thickness, and the different length of arc section caused by the different shrinkage during the grinding and correcting the roundness by riveting in the process of rolling, in the process, the invention reserves pressure heads at two ends of a barrel plate and cuts off the pressure head area, and has originality in the operation method.