The separator is one of the most important parts of the slag vertical mill. Its function is to pass the qualified product after grinding, together with the guiding air flow, into the dust collector through the outlet pipe of the shell; and the semi-finished particles (exceeding the specified size) are thrown outwards. It exits and sinks under gravity and leaves the centrifugal force and is collected in a collector and returned to the mill for re-grinding. The guided air flow is formed by a wind deflector device. The air deflector vertically increases the mixture of powder and air into the tangential flow, and the fineness of the finished product depends on the gap between the wind deflectors, the angle of the wind deflector itself and Rotor speed.

1. Facing problems

Traditional wind deflector devices are designed to be fixed and non-adjustable, so that the controllability of the finished product fineness of a slag vertical roller mill is relatively simple, and the types of abrasive materials are limited. This paper introduces a new type of adjustable air deflector device, which makes the controllability of the finished product fineness of a mill machine diversified, simple and easy to operate, and can achieve a mill grinding different types The materials make the mill products diversified, thus allowing users to obtain higher economic benefits.

Grinding of a material, tangentially adjusting the air guide plate or increasing the rotational speed of the rotor will result in a finer finished product after separation. Decreasing the rotational speed of the rotor and radially adjusting the air guide plate will result in a thicker finished product; similarly, grinding Different materials, different conditions within the mill, the required fineness of the finished product can also be solved through the above technical solutions.

2. Improve the program

The new adjustable air deflector is welded to the core of the air guide plate. By adjusting the adjustment of the handle to the mandrel of the air guide plate, the adjustment of the entire air guide plate device is realized, and the spacing value between the air guide plates is changed. When the fineness of the finished product reaches the required level, the position of the wind deflector device is fixed and the reading of the dial indicated by the pointer is recorded, so that the serialization of the position data of the wind deflector device corresponding to the fineness value of each material milled product is achieved.

The new fixed adjustable wind deflector device is shown schematically in Figure 3. This unique fixing method is to weld the fixing bracket to the wind deflector core shaft. After the position of the wind deflector is adjusted, the fixing bolt is inserted through the through hole in the fixing bracket through the fixing bolt, and the fixing block is screwed into the housing. Upper) Adjust the positioning screw hole. The advantage of this fixing method is that the two locking nuts above the wind deflector device will not be loosened due to the vibration of the slag vertical roller mill, so that the locking force is not enough, resulting in the position of a wind deflector device. The offset. In addition, a plurality of adjusting and positioning screw holes on the fixed block achieve the adjustment effect of the entire air guide plate device, so that the distance between the air guide plates can be adjusted.