我厂处理含泥多、锡石嵌佈细的砂锡矿,在重力选别过程中是属于难选矿石之一。产品以回收锡石为主,粗颗粒(1～0.43公厘)的选别设备是摇床,细颗粒的选别设备是放槽(固定溜槽的一种型式)。主要的矿物组成有:方解石、铁染粘土、氢氧化铁、锡石、白铅矿、云母等。泥矿系统的精矿佔全厂精矿总回收率的43.2％。在泥矿系 I plant with more mud, cassiterite fine sand tin ore, gravity sorting process is one of the refractory ore. Products to the recovery of cassiterite, coarse particles (1 ~ 0.43 mm) of sorting equipment is shaker, fine sorting equipment is put slot (a fixed chute type). The main mineral components are: calcite, iron dye clay, iron hydroxide, cassiterite, lead, mica and so on. The concentrate of the mud system accounts for 43.2% of the total recovery of the whole plant concentrate. In the mud department