Ball Mill structure Introduction
The ball mill is an important fine grinding equipment, such equipment is widely used in the cement industry. energy-saving grinding plant The mill cylinder longer, the longer time allows the material in the grinding mill, the fineness of the finished product is higher.
The specifications of the mill is the cylinder inner diameter D (m) and the cylinder length L (m) multiplying 2.2 ¡Á 6.5 mill, such as.
Although the mill due to the different production methods, specifications, discharge, bearing and transmission methods have been divided into many types, but much the same structure, mainly composed of the following basic components:
(1) feed device includes hopper, screw into the barrel or feed cone.
(2) supporting device points at both ends of the main bearing support, mixed support (the main bearings and sliding shoe), both ends sliding shoe bearing.
(3) rotating part including a hollow shaft, the mill shell and grinding within the diaphragm plate, lining, backgauge rings and other components.
(4) discharging device points the edge of the discharge, the central discharge,mineral processing spiral classifier the middle of the discharge.
(5) gear points to the edge of the drive and center drive in two forms, including the size of the main motor, auxiliary motor, reducer, drive shaft and the edge of the drive gear.
Below2.2 ¡Á 6.5 edge drive ball mill, 2.4 ¡Á 13 baseball grinding 2.4 ¡Á 10 in the unloading the drying grinding and of 3 ¡Á 11 cement mill, for example, introduced its main structure.
The structure of the drive ball mill of the 2.1.12.2 ¡Á 6.5 edge
The mill shell at both ends of the main bearing support, this mill is the edge of the drive, central discharge ball mill. The machine driven by JR motor with coupling, the ZD70 1 reducer by the coupling, the size of gear grinding the cylinder rotation. Material from the feed tube through the hollow shaft into the grinding cylinder body with the rotation of the mill body, the material in the cylinder body by the impact of the grinding media and abrasive grinding into qualified products, the compound empty shaft, tripper, send into finished products in
2.2 ¡Á 6.5 mill is a two positions mill. Used as the raw mill, tube effective length is 6.5m, coarse grinding position is 3m, 1m or so as the drying material segment, finely ground position is 3.25m, the unloading segment is 0.25m, the cylinder effective volume 22.3m3, drying and chief grinding medium hard limestone and clay, the production capacity of 16t / h, feed water 6%, mill speed 21.6r/min, grinding media loading capacity of 22t, the main motor adopts JR14108 type, motor power 280kW, by ZD70 type 1 reducer and size of the gear driven mill body rotation.
Mill as a cement mill, tube effective length of 6.2m, the effective volume of 21.3m3,high-capacity Raymond mill coarse grinding position is 2.75m, finely ground position is 3.4m, unloading positions for 0.21m, the production capacity of 14 15t / h 31t maximum loading capacity of the grinding body. Aircraft by JR158 8 and power for 380kW motor via coupling, ZD70 the1 speed ratio for the 5 speed reducer driven by the size of the gear grinding cylinder 21.4r/min the speed of rotation.
ball mill,grinding equipment,cement industry
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