真空盒 Vacuum box 说明：真空盒是排液胶带底面滤液的汇集处。其中心线与排液带及中心排孔的中心线相重合。真空盒断面呈V形，过滤机运行时，真空盒固定不动。 材质：304、316L、碳钢衬塑 Instruction: filtrate at the bottom from discharging adhesive belt gathers at vacuum box, its central line, discharging belt and central line of central aperture are one the same line. Section of vacuum box forms V type and it will not move while filter running. Materials: 304, 316L, carbon steel plastic lining