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郑州铝厂采用圆鼓形真空过滤机来分离种分出料的氢氧化铝浆液,其滤饼原系连续吹脱。鉴于滤饼连续吹脱的缺点较多,从1975年开始试用627-05型电磁阀自动控制的间断吹脱。试验中发
Zhengzhou aluminum plant using a circular drum-shaped vacuum filter to separate the seeds of the aluminum hydroxide slurry, the original continuous blowing off the filter cake. In view of the shortcomings of the continuous stripping of the filter cake more, since 1975 trial of 627-05-type solenoid valve automatic control of the blow-off. Test hair