我厂磁选铁精矿的过滤是使用我国首批试制的12米~2永磁外滤式真空过滤机(图1)。该机自1970年投产以来,经过不断改进,脱水效果良好:磁精矿粒度为40%-200目,给矿浓度在40～50%时,精矿滤饼的水份为9～10%,生产能力达4～5吨/米~2时。 My factory magnetic separation of iron concentrate is the use of China's first trial of 12 m ~ 2 permanent magnet filter vacuum filter (Figure 1). Since the machine was put into operation in 1970, the dehydration effect is good after continuous improvement: the particle size of magnetic concentrate is 40% -200 mesh, and the water content of concentrate filter cake is 9% -10% when the ore concentration is 40% ~ 50% Production capacity of 4 to 5 tons / m ~ 2 o'clock.