Shandong Efful Tengfei Technology Co., Ltd is specialized in designing, developing, manufacturing and installation of gypsum machinery, including gypsum board production line, gypsum powder production line, gypsum block production line and paper faced gypsum board PVC lamination production line.
Gypsum is a soft sulfate mineral composed of calcium sulfate dihydrate, with the chemical formula CaSO4·2H2O. To make gypsum as construction material, calcination process is needed, and part crystal water will be removed from gypsum. The calcined gypsum’s chemical formula is CaSO4· 1/2H2O. It is widely used as raw material for gypsum board, plaster, cornice, school chalk, etc.
Phosphogypsum refers to the gypsum formed as a by-product of the production of fertilizer from phosphate rock. It is mainly composed of gypsum (CaSO4·2H2O). After the phosphogypsum is treated with our production line, it can be used as construction gypsum and agricultural gypsum. Technology of phosphogypsum treatment: Two-step treatment. The first step is to remove the free water in the phosphogypsum raw material(the process is also called preheating). Hot air and phos...
Flue-gas desulfurization (FGD) is a set of technologies used to remove sulfur dioxide (SO2) from exhaust flue gases of fossil-fuel power plants, and from the emissions of other sulfur oxide emitting processes. After the FGD is treated with our production line, the FGD gypsum can be used as construction gypsum and agricultural gypsum. Technology of FGD treatment: Two-step treatment. The first step is to remove the free water in the FGD raw material(the process is also ca...
