Vertical roller mill for short, compared with the traditional grinding equipment of vertical roller mill, belong to very large milling equipment, for such ultrafine large mill installation, need to have professional personage. The installation of vertical mill is vertical?
The installation of vertical mill can be divided into three parts: the overall installation, barrel and parameter design.
1, vertical installation of vertical mill, cylinder axis vertical to the ground, driving motor installed in the shell side lower part, as well as through the belt transmission, gear transmission, also can be the motor drives the cylinder rotate, guide plate fixed in general. Hollow shaft tube feeding way from top-down, into the mill discharge way is by the cylinder at the center of the upper hole out from bottom to top, the outflow from the discharge tank again.
2, installation - oriented institutions in cylinder body, the guide plate, support plate and hollow shaft tubes. Guide plate through support plate and tube hollow shaft coupling, the connecting way includes: threaded connection, pin or linkage, rivet connection, connected polygon and welding. Guide plate is designed in tablet form, can also be designed to have certain radian of curved plates, the position of the guide plate within the mill can move through the hollow shaft tube to adjust.
3, mill speed and steering mechanism parameters design of mill cylinder speed n p nd type: n is the speed of the grinding machine; Nd for discharging granularity for d ore grain can be ground fine minimum rotational speed, and diameter of mill, grinding medium type, particle size, ore hardness etc factors, nd determined by experiment.
Mill barrel length to diameter ratio (the ratio of length and diameter) for 2 ~ 1. Steering mechanism parameter design guide plate for flat or curvature is greater than the cylinder curvature of the arc plate, the length of the L1 = 0.7 ~ 0.9 L type: L1 for the length of the guide plate; L is the length of the cylinder. The width of the guide plate W1 = 0.3-0.5 R type: W1 is the width of the guide plate; R is the radius of the cylinder. E of the guide plate Angle of 40 ~ 70 degrees. Type: d1 oriented plate clearance between the cylinder body wall; D2 to the maximum diameter of grinding medium.