Material feeder of large planetary ball mill

Abstract

The present invention relates to pulverizing apparatus structure, and is especially material feeder of large planetary ball mil. The material feeder has one feeding frame, one material guiding pipe on the feeding frame, one rotating shaft inside the material guiding pipe and the feeding frame and with one end supported via bearing on the feeding frame and the other end located outside the discharge port of the material guiding pipe, one spiral rack inside the grinding barrel, and spiral vanes on the rotating shaft. Under the driving of the spiral vanes, the material is fed first to the material guiding pipe and then to the grinding barrel homogeneously. The present invention is suitable for great flow continuous production of cement, powdered coal and blast furnace slag.

Description

technical field [0001] The invention relates to a crushing mechanical equipment, especially the structure technology of a planetary ball mill. Background technique [0002] Planetary grinding cylinders are evenly distributed outside the main shaft of the planetary ball mill. Each grinding cylinder not only follows the revolving disk, but also rotates on its own. The grinding ball in the cylinder grinds the material. In order to distribute the materials in the feeding frame into the grinding cylinder, in the prior art, each top corner of the feeding frame is respectively connected with the grinding cylinder, and a rotating shaft extending into the grinding cylinder is provided at each top corner of the feeding frame. The spiral blades are respectively connected to the rotating shaft, and the design purpose is to distribute the material to each grinding cylinder by the spiral blades after the materials to be centrifuged reach the top corners. This design makes it easy for th...

AI Technical Summary

Problems solved by technology

This design makes the grinding balls in the grinding cylinder easy to be clamped on the spiral blades, resulting in pinching, not only need to stop the machine, but also easily damage the spiral blades

In Chinese patent 002662108, in order to prevent the helical blades protruding into the grinding cylinder from being clamped, a protective cover is installed in the grinding cylinder, trying to use the protective cover to partially protect the spiral blades, but due to the design of the protective cover, not only the feed The speed is seriously affected, and the screw extends into the feeding casing, and the large-diameter material is easy to cause the screw blade to be stuck, so that the material cannot enter the grinding cylinder, and the screw blade is damaged.

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