Inclined roll pressurized external circulating pulverizer

Abstract

The invention discloses an inclined roll pressurized external circulating pulverizer. A central shaft bracket is mounted at the bottom of a pedestal of a main frame; grinding rings are mounted at the upper part of the pedestal; a hooding cylinder is mounted on the end face of the pedestal; the lower part of a spindle is mounted in the central shaft bracket; a grinding roller device is arranged at the upper part of the spindle; the grinding roller device comprises grinding roller racks and grinding rollers; the circumference of the grinding roller racks is uniformly and fixedly arranged on roller fixing racks and inclined downwards and outwards; the grinding rollers are mounted on the grinding roller racks and propped against the conical milling surfaces with larger upper parts and smaller lower parts of the grinding rings; the roller fixing rack is mounted at the upper end of the spindle; a material homogenizing disk is arranged at the upper part of the roller fixing rack and rotates coaxially with the roller fixing rack; a discharge hole of the main frame is formed in the bottom of the inner hole of the pedestal; scraping plates are arranged at the positions, corresponding to the discharge hole of the main frame, of the bottom of the pedestal; the circumference of the scraping plates is uniformly distributed and mounted on a material scraping frame; the material scraping frame and the roller fixing frame are coaxially and fixedly mounted; the discharge hole of the main frame is communicated with an outer-frame classification system. The inclined roll pressurized external circulating pulverizer disclosed by the invention is simple in structure, low in cost, prone to maintain, and short in replacement and maintenance time; as the pulverizer is free of material throwing motion of a scraper knife and the complicated and heavy grinding roller device, the loss of the total power can be greatly reduced.

Description

(1) Technical field: [0001] The invention relates to powder processing equipment, in particular to a skew roller pressurized external circulation pulverizer. (two) background technology: [0002] Grinding machine is the most widely used equipment in mineral powder industry. [0003] The general structure of a main engine of a mill is as follows: the base of the main engine is equipped with a hollow central shaft frame, a coaxial grinding ring and a cover cylinder. The upper end of the main shaft outside the frame is equipped with a fixed roller frame (or called plum blossom frame), and the grinding roller assemblies distributed in the circumference are set on the fixed roller frame; during the revolution process of the grinding roller assembly, the grinding roller assembly is driven by centrifugal force. Each grinding roller keeps rolling contact with the grinding ring, and the mutual rolling between the grinding roller and the grinding ring crushes the mineral material. Un...

AI Technical Summary

Problems solved by technology

[0005] In the process of throwing ore on the shovel, the deposited ore produces resistance to the shovel, and the shovel overcomes the resistance of the ore to do work, which is bound to consume part of the power of the main engine. This is because the output per unit time of this type of mill is not high. , one of the reasons for the low efficiency

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