滤布放松、压滤板框闭合当压滤板框闭合后，矿浆供给气动夹紧阀打开，矿浆通过软管分别进入各雅旅伴框矿浆---滤饼腔而进行过滤，滤液通过滤布进入滤液腔而排出，此时滤饼初步形成。(filter cloth relaxation and press filter plate frame closure when the press plate is closed, the pulp supply pneumatic clamping valve is opened, the pulp through the hose respectively into Jacob - cake box companion pulp cavity and filtered,)