The use of shim devices to adjust the effect of the outlet

The function of the spiral classifier lifting mechanism is to lift the screw when the machine stops, so as to avoid mechanical overload due to the backlog of accumulated sand when the machinery is restarted; during the classification process, the lifting mechanism can be used to raise or lower the spiral to adjust the spiral load. size. Discharge port adjustment using slider device or gasket device, at present, simple pendulum discharge port adjustment device has been used more gasket device. The size of the discharge opening can be adjusted by adjusting the wedge to slide up and down along the slide or increase and decrease the thickness of the shim layer. The specification of jaw crusher is expressed by the width and length of the mine mouth. Jaw crusher is simple in structure, difficult to stop ore, reliable, easy to manufacture, and easy to maintain. It is still widely used today.

It is mainly used for coarse and medium breakage of medium or above ore. Compared with the rare earth ore dryer, its disadvantages are low productivity, small crushing ratio, and uneven product particle size. The gyratory crusher is a continuously working crusher. The hammer breaking structure and working principle are mainly composed of a frame, an active cone, a fixed cone, a main shaft, a large and small bevel gear, and an eccentric sleeve. When the eccentric sleeve rotates, the cone is continuously eccentrically rotated about the center axis. When the movable cone is near the fixed cone, the ore is crushed and broken; when it leaves, the broken product is discharged through the discharge port by its own weight. The medium filling factor (filling rate) refers to the Baiyun teaching that the grinding media accounts for the mill volume. It has a large relationship with the speed of the mill, which also affects the movement of the medium.

When the filling rate is low, the actual critical speed of the mill is higher, and the speed at which the medium achieves evacuation-type operation is also high; when the filling rate is high, the medium may be thrown off even at low-speed operation. The appropriate medium filling rate should be at a certain speed, so that the mechanical energy can reach large. It has reliable work, convenient operation, stable classification area, fine overflowing granularity, large sink slope, and advantages of self-returning sand and grinding machine. However, this type of equipment is cumbersome, the classification efficiency is low, the spindle is easily broken, and the overflow bottom bearing is poorly sealed. The ore dressing plant widely uses a spiral classifier and a grinding machine to form a closed-circuit grinding process.