The hydraulic system of vertical mill is an important system, the main function of the hydraulic system is to break the grinding roller, which is when the internal grinding cavity wear parts wear, can stop open on both sides of the grinding roller mill, to replace the inside parts or repair. This type vertical roller mill including the hydraulic station, connected with the grinding roller cylinder and hydraulic pipe and other components.

1. The working principle of the hydraulic system vertical roller mill
The hydraulic system ofvertical mill is an important system, the main function ofthe
hydraulic system is to break the grinding roller, which is when
the internal grinding cavity wear parts wear, can stop open on both sidesofthe grinding roller
mill, to replace the inside parts or repair.This type vertical roller mill including the hydraulic
station, connected with the grinding roller cylinderand hydraulic pipeand other components.
The working principle ofhydraulic system of vertical mill grinding equipmentare as follows:
the hydraulic device is mainly to raise and lower the grinding roller and setting, when lifting
the grinding roller, hydraulic oil in the hydraulic cylinder can be a through the oil pump,
switching valveinto the cylinder, the cylinder because add hydraulic oil caused pressure
increases, so the cylinder on the cylinder below produce upward thrust, such forces can
promotethe upward motion ofthe piston; the upper part ofthe oil cylinder and the hydraulic
oil cylinder through the oil return pipe inside into the hydraulic station; when the pressure on
the stage grinding roller, to open the valve on the oil pipeline, with pressure relief, or by
switching valve to convert, let oil pump in the upper part ofthe oil cylinder hydraulic
oil out into the cylinder body,thereby producing downward thrustforce, this force can push
the piston downwards, and the hydraulic oil return hydraulic cylinder lower block in
the pressurizing station.
The working principle of the above is the grinding roller ofopening and closing, pressure can
support open roll grinding, pressure relief can be closed,this is also the mill wear-resistant
parts replacement and repairconveniencereasons.
Vertical hydraulic device in mill to mill the internal parts ofthe repair and replacementare
convenient and setting,it can only control the grinding roller aspects of opening and closing,
and can not control the small aspects ofthe regulation of grinding rollerand the grinding disc
distance size. The hydraulic device is all work together and pressurizing device, and the
pressure device inside the join is the hydraulic oil pressure to open, the grinding roller,and
the pressure relief can be closed grinding roller, the two ofthem is a mutual cooperation and
mutual essential system, two cooperating system is to facilitate the users design. The
hydraulic deviceis an important device in vertical mill, but the priority among priorities is
inside to add hydraulic oil, add users to timely.
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