A high-efficiency vertical dry stirring mill and its application

Abstract

The invention discloses a high-efficiency vertical dry stirring mill and its application. The mill comprises a casing, a screw feeder, a grinding drum, a main shaft, a stirrer, an activated lining plate, a discharge device, a driving device, a powder selection Machine and air supply device; the powder separator, screw feeder, grinding drum, discharge device, driving device, the coarse particle return pipe of the powder separator and the discharge of the screw feeder are installed in the shell from top to bottom. The ends are connected with the top of the grinding cylinder, the grinding cylinder is provided with a main shaft and a stirrer, the agitator is fixed on the main shaft, the inner wall of the grinding cylinder is provided with an activated lining plate, and the discharging device is arranged at the bottom of the grinding cylinder and fixed on the main shaft; the main shaft is The bottom is connected with the driving device; the space between the grinding cylinder and the outer casing forms an annular air chamber, and the air supply device is arranged below the discharging device and faces the annular air chamber. The invention has high grinding efficiency, good separation effect of finished products, no over-grinding phenomenon, good heat dissipation, precise control of product fineness, reduced energy consumption, and improved equipment reliability and stability.

Description

technical field [0001] The invention relates to the technical field of stirring mills, in particular to a high-efficiency vertical dry stirring mill and its application. Background technique [0002] The stirring mill consists of a driving device, a barrel, a stirrer, and a grinding medium. The barrel is usually a cylinder. The agitator is usually a screw type, a rod-pin type and a disc type. The grinding medium is usually steel balls, corundum balls, Zirconium ball or natural river sand, pebbles and other spherical media. When working, the cylinder of the agitating mill is stationary, the driving device drives the agitator to rotate, and the agitator directly applies the power to the grinding medium, so that the grinding medium and the material perform multi-dimensional circular motion and self-rotating motion, and the grinding, shearing and impacting of the medium balls Function to achieve effective grinding of materials. The grinding efficiency depends on the total numb...

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Problems solved by technology

[0010] In order to solve the problems of low grinding efficiency, poor product separation effect, difficult heat dissipation, difficulty in controlling the fineness of finished products, serious over-grinding and other problems of the existing dry vertical stirring mill, the present invention provides a high-efficiency vertical dry stirring mill, Improve the grinding efficiency of the dry vertical stirring mill, accurately control the product fineness, and improve the reliability and stability of the equipment

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