Mixing stirrer for pretreatment, gypsum slurry manufacturing device, building face material manufacturing device, pretreatment calcined gypsum manufacturing method, gypsum slurry manufacturing method, building face material manufacturing method

摘要

A mixing stirrer for pretreatment that is disposed at the front of a mixing stirrer for forming a slurry by kneading calcined gypsum and water into a gypsum slurry, and performing pretreatment by mixing the calcined gypsum with one or more additives selected from liquids and powders, comprising: a top plate; A lower plate disposed to face the upper plate, and a side plate disposed between the upper plate and the lower plate, wherein the calcined gypsum and the additive are mixed and stirred in the interior surrounded by the upper plate, the lower plate and the side plate having a mixing stirring area A cylindrical housing; It provides a mixing stirrer for pretreatment comprising a calcined gypsum supply port, and an additive supply port disposed on either one or both of the upper plate and the side plate, and supplying the additive to the mixing and stirring region.