Method and equipment for simultaneously crushing and grinding ores

Abstract

The invention discloses a method and equipment for simultaneously crushing and grinding ores. The method includes overlaying an upper arc-shaped grinding face on a lower arc-shaped grinding face, forming spatial regions which are gradually diminished from top to bottom between the inner surface of the upper arc-shaped grinding face and the outer surface of the lower arc-shaped grinding face, dividing the spatial regions into crushing regions and grinding regions from top to bottom, respectively arranging cutting teeth and fixing teeth on the inner surface of the upper arc-shaped grinding face and the outer surface of the lower arc-shaped grinding face in the crushing regions and arranging smooth arc faces on the outer surfaces of the upper arc-shaped grinding face and the lower arc-shaped grinding face in the grinding regions; enabling the upper arc-shaped grinding face and the lower arc-shaped grinding face to rotate relatively, feeding the ores into the crushing regions from a feed inlet in the top of the upper arc-shaped grinding face, fixing the ores by the aid of the fixing teeth, crushing the ores by the cutting teeth, enabling the crushed ores to fall into the grinding regions, grinding the ores by the smooth arc faces and enabling grains of the ores to fall via gaps at the lower ends of the upper arc-shaped grinding face and the lower arc-shaped grinding face. The method and the equipment have the advantages that the traditional crushers and ore grinding machines can be replaced, the ores can be crushed at first and then can be ground and integrally manufactured, and the equipment is high in crushing ratio.

Description

technical field [0001] The invention relates to an ore grinding method and equipment, in particular to a method capable of simultaneously crushing and grinding ore and equipment based on the method. Background technique [0002] Grinding machine is an indispensable mechanical equipment in the coal mining industry. Due to the different sizes and qualities of the mined coal, it cannot be burned and utilized well. It is necessary to use mining equipment to crush the coal and grind it into coal powder. With the development of the coal mining industry, the grinding equipment is developing in the direction of large-scale mills, high efficiency and energy saving. The existing grinding machines can be divided into ball mills, rod mills, autogenous mills and pebble mills according to different grinding media; most of these grinding machines need to be used in conjunction with other equipment, such as classifiers, feeders, etc. Can meet production requirements. At present, most of ...

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Problems solved by technology

This kind of grinding method needs to crush the ore to a certain size before the ore is fed; and the grinding process is random and blind, which is easy to cause uneven grinding

During the grinding process, it is greatly affected by the grinding medium, and cannot work continuously, with low efficiency and heavy repetitive workload.

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