Crushing process of alumina crusting block and production line thereof

Abstract

The invention relates to a crushing process of an alumina crusting block generated during the first-stage electrolytic aluminum production and a production line thereof. The crushing process includes the following steps: feeding, grinding, material separating, air supplementing, material collecting, dust collecting and material storing. As to the production line for realizing the crushing process of the alumina crusting block, a mechanical part comprises a raw material bin, a feeding machine, a grinding machine, a sorting machine, a cyclone dust collector, a bag type dust collector, a chute and a finished product bin which are sequentially connected with each other; an electric control part comprises an IPC (industrial personal computer), a PLC, a frequency changing and speed regulating system, an acousto-optic alarm display system and a sensing system. The crushing process and the production line thereof in the invention achieve the standard discharging granularity that usually 2 / 3-stage can achieve, increase the production efficiency, reduce consumption, and can timely recycle the alumina crusting block at the same time.

Description

technical field

[0001] The invention relates to a crushing technology, in particular to a crushing process and a production line for crushing alumina crust blocks generated in the production process of primary crushing electrolytic aluminum. Background technique

[0002] In recent years, the electrolytic aluminum industry has developed rapidly. Statistics show that since 2001, the domestic demand for electrolytic aluminum has grown at a rate of 1 million tons per year; by the end of 2003, the production capacity of electrolytic aluminum had reached 8.34 million tons; by 2008, electrolytic aluminum The production capacity has reached 12.5 million tons. With the rapid growth of electrolytic aluminum production in my country, the amount of alumina crusts left over by electrolytic aluminum enterprises in production has also increased. However, the research and development status of domestic alumina crust crushing technology is limited to the rectification and improvement of ind...

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