Multistage turbine pulverizer

Abstract

A multistage turbine pulverizer is composed by connecting at least two turbo crushers through superpose, wherein the turbo crusher includes from the top to the bottom an upper feed barrel with a feed bin inside; a crushing barrel, one upper end of which is connected with the upper feed barrel, the middle is provided with a cross baffle for dividing the crushing barrel into an upper and a lower parts, the upper part is formed a crushing cavity and is provided with a wear layer on its inner wall, the cross baffle is provided with a middle hole and a side hole; the lower part is provided with a motor, a vertical output shaft is provided with a turbine disk, and the turbine disk is arranged below an outlet of the feed bin; a discharge hole locating on the bottom of the barrel is in correspondence to the side hole of the cross baffle. A rotation velocity of the turbo crusher increases by degrees from the top to the bottom. The invention has the following superiority: under a condition of an equivalent yield, the weight of equipment is only one fifteenth of a ball mill; a power matching is small, it is capable of reducing the energy consumption greatly, an energy consumption per ton material is 4 to 9KW.h / t, but that of the ball mill is more than 25KW.h / t; the pulverizer of the invention has a high crushing grinding efficiency, a low unit cost, a low investment and a convenient maintenance.

Description

technical field [0001] The invention belongs to the technical field of material grinding equipment, and in particular relates to a multi-stage turbine high-efficiency grinding machine. Background technique [0002] my country is the world's largest producer of cement, ceramics, building materials, and non-metallic mineral powders. Ball mills are used for raw material milling, cement grinding, ceramic grinding, kaolin powder, cornstarch, and coal grinding in cement plants. There are hundreds of thousands of ball mills used in the industry. Ball mill is a product with mature technology, which has the advantages of high equipment operation rate, reliable operation, and easy control of product fineness adjustment. However, the ball mill is bulky and needs a large-capacity motor to drive hundreds of tons of heavy cylinders and hundreds of tons of steel balls. The mechanical efficiency is low, the floor space is large, the initial investment cost is high, and the power consumption...

AI Technical Summary

Problems solved by technology

However, the ball mill is bulky and needs a large-capacity motor to drive hundreds of tons of heavy cylinders and hundreds of tons of steel balls. The mechanical efficiency is low, the floor space is large, the initial investment cost is high, and the power consumption is large during operation. Poor adaptability, large consumption of grinding body and liner, high noise during operation, high maintenance cost, poor environment, and product fineness can only reach about 200 mesh

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