Fluidized vertical type stirring mill suitable for dry type grinding

Abstract

The invention discloses a fluidized vertical type stirring mill suitable for the dry type grinding. A cylinder body of the fluidized vertical type stirring mill is vertically arranged, and a grindingmedium feeding inlet is formed in a top plate of the cylinder body, a stirring motor is vertically erected above the top plate of the cylinder body, a motor shaft of the stirring motor faces downwardsand extends inside the cylinder body, a stirrer is positioned inside the cylinder body, a stirring shaft of the stirrer is coaxially and fixedly connected with a motor shaft of the stirring motor, abase sealing cover is fixedly installed with a cylinder port at the bottom of the cylinder body in a sealing mode, lining plates, a ventilation isolation cloth and a supporting plate are sequentiallyclamped between the cylinder port at the bottom of the cylinder body and the base sealing cover, and a fluidization gas introduction port is formed in the center of the base sealing cover; vent holesare all uniformly arranged the liner plates and the supporting plate, the several vent holes are arranged uniformly, the liner plates and the vent holes in the supporting plate are the same in numberand are in one-to-one correspondence position, a spiral feeder is horizontally arranged at the bottom of a side wall plate of the cylinder body, the discharge end of the spiral feeder communicates with the interior of the cylinder body, a powder overflow port is formed in the upper part of the side wall plate of the cylinder body, and a grinding medium isolation net is installed at a hole port ofthe feeding end of the powder overflow port.

Description

technical field [0001] The invention belongs to the technical field of powder preparation, in particular to a fluidized vertical stirring mill suitable for dry grinding. Background technique [0002] For materials that cannot be wet-milled, they can only be dry-milled. At present, the main dry-milling equipment is a ball mill. When the ball mill is running, the cylinder of the ball mill needs to rotate continuously, and the quality of the ball mill cylinder is almost the The quality of the grinding medium is equivalent, so it takes a lot of energy to drive the cylinder to rotate, so the energy consumption of the ball mill is high, and the cylinder of the ball mill has a speed limit, which cannot rotate at a high speed. The powder output by the ball mill has the disadvantages of low fineness and uneven particle size distribution. [0003] Another type of dry grinding equipment is a horizontal agitating mill. When the horizontal agitating mill is running, the grinding medium ...

AI Technical Summary

Problems solved by technology

[0002] For materials that cannot be wet-milled, they can only be dry-milled. At present, the main dry-milling equipment is a ball mill. When the ball mill is running, the cylinder of the ball mill needs to rotate continuously, and the quality of the ball mill cylinder is almost the The quality of the grinding medium is equivalent, so it takes a lot of energy to drive the cylinder to rotate, so the energy consumption of the ball mill is high, and the cylinder of the ball mill has a speed limit, which cannot rotate at a high speed. The powder output by the ball mill has the disadvantages of low fineness and uneven particle size distribution

[0003] Another type of dry grinding equipment is a horizontal agitating mill. When the horizontal agitating mill is running, the grinding medium and the material are in the same horizontal interface. When the powder is output, it is necessary to set up a complicated grinding medium to separate it from the powder. mechanism, resulting in higher equipment maintenance costs for horizontal stirred mills

Images