Air Classifying Mill

The BONANZA AIR CLASSIFYING MILL with integrated grinding, classifying, conveying and collecting operations.

The basic machine consists of

• Base Frame
• Grinding Chamber
• Dispersion Ring
• Rotor Disc
• Shroud and Baffle Ring
• Classifying Wheel
• Liner
• Bearing Assembly
• Feeding Screw Assembly
• All Drive Parts

The Bonanza Air Classifying Mill

The bonanza air classifying mill is vertical hammer mill with built in separator wheel to produce fine powder more economically and to the most critical tolerance. The system of this mill consists of basic mill with feeding screw, pulse jet dust collector and rotary air lock valve, fan and control panel.

The Principle Of Operation

The material to be ground is conveyed to the grinding chamber through feed hopper by variable feed screw mechanism. Hammers provide high impact on the material at high velocity against liner, thus causing disintegration of material to higher fineness. The primary air stream, which enters from below the rotor assembly via baffle ring, flowing up the inner wall of the liner, carries, the particles upward via shroud ring and then deflected by the dispersion ring into the separator wheel. In this section two forces opposite of each other affect each grounded particle. The suction force caused by flowing air and the centrifugal force caused by the rotation of separator. If the suction force is prevailing, the material is discharged with the primary air stream as finished product. If the material particles are not yet fine enough, the centrifugal force prevails, then particles are rejected by the separator and thrown back into the grinding zone by means of the secondary air stream. Acceptable fines pass through the separator because of the suction created by the fan on discharge side and collected efficiently in the pulse jet dust collector and then discharge through rotary air lock valve.