我们学习洗煤厂的经验,自制电磁阀自动排液装置(图1),取代了浮筒杠杆式自动排液装置,经过两年的生产实践,获得满意的效果。现在,全厂过滤机都采用了这种排液装置。电磁阀自动排液装置的优点是:体积小,易加工,造价低,一般厂矿均能制作;自动排液灵活可靠,故障少;检修、安装、更换方便,无须停产检 We learn the experience of coal washing plant, self-made solenoid valve automatic drainage device (Figure 1), replacing the buoy lever automatic drainage device, after two years of production practice, to obtain satisfactory results. Now, the whole plant filters have adopted this drainage device. Solenoid valve automatic drain device has the advantages of: small size, easy processing, low cost, the general factory can produce; automatic drainage of flexible and reliable, less fault; maintenance, installation, replacement, no need to stop production