Rod mill for sand making

A rod mill is a mill in which the grinding body loaded in the cylinder is a steel rod. Rod mills are generally of wet overflow type, which can be used as primary open-circuit grinding, and are widely used in primary grinding of artificial stone sand, mineral processing plants, and power departments of chemical plants. The mill is mainly composed of motor, main reducer, transmission part, cylinder part, main bearing, slow transmission part, feeding part, discharging part, annular seal, thin oil lubrication station, large and small gear jet lubrication, basic part, etc.

Working principle

The rod mill is an asynchronous motor connected with the pinion through the reducer, which directly drives the surrounding large gear to decelerate and rotate, and drives the rotary part to rotate. Under the action of the grinding machine, the material to be ground enters the cylinder continuously from the feeding part, is crushed by the moving grinding medium, and discharges the product out of the machine through the force of overflow and continuous feeding for the next stage. Process processing.

Product Features

rod mill

Compared with the old equipment, the power can be saved by more than 40%. The particle size of the product is relatively uniform, and the combined coarse particles and sludge are less. Comparing the particle size characteristics of the rod mill product and the ball mill product, the particle size characteristic curve of the product of the open circuit working rod mill is almost the same as that of the closed circuit working ball mill.

Adopting advanced controllable feeding and discharging rod mill technology, combining the actual user’s grinding materials with suitable grinding bodies, changing the surface contact of the traditional ball mill to line contact, making the discharge particle size of the Huali brand sand making machine more uniform , The output is higher, and it is suitable for ores of different hardness (Mohs hardness 5.5~12).

Technical parameters

Specifications Cylinder size(mm) Effective volume (m³) Amount of stick (t) Cylinder speed (r/min) Power(kw) Discharge particle size (mm) Production Capacity(t/h)
GMBZ2136 φ2100×3600 11.2 16 19.0-21.0 210 ≤5 20-60
GMBZ2442 φ2400×4200 17 21.5 18.5-20 ≤355 ≤5 38-78
GMBZ2445 φ2400×4500 18.2 23 18.5-20.0 355 ≤5 40-80
GMBZ2745 φ2700×4500 22.4 27 17.2-18.5 500 ≤5 50-100
GMBZ3245 φ3200×4500 32.8 40 15.4-16.6 630 ≤5 60-130


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