Waste iron and steel crushing and furnace material processing integration method and equipment

Abstract

The invention relates to a waste iron and steel crushing and furnace material processing integration method and equipment, wherein a combination crushing technology adopting a double shaft shredder as primary crushing and adopting a vertical crusher as secondary crushing is adopted, multiple squeezing and kneading are performed to completely separate non-ferrous metals, non-metals and garbage mixed in waste iron and steel, and a combination manner of two-stage wind separation, magnetic separation, eddy current sorting, sieving machine sorting, manual sorting and a plurality of sorting methods is adopted to form a set of crushing sorting equipment for socially recovered thin-walled waste iron and steel so as to carry out effective crushing and sorting on the thin-walled waste iron and steel to obtain the high quality waste steel raw material. According to the present invention, the physical manner is adopted to treat, the whole process does not produce waste gas, waste water and waste residue, the method and the equipment are suitable for actual situations of resource scattering, inconvenient long-distance transportation of light and thin materials and mixing materials, and power shortage in our country, the process is simple, operations are easy, and equipment manufacturing cost is low.

Description

technical field [0001] The invention relates to the environmental protection treatment and utilization of scrap iron and steel, automobiles and non-ferrous metals, in particular to a method and equipment for integrating scrap iron and steel crushing and furnace material processing. Background technique [0002] Entering the 21st century, China's iron and steel industry has entered a period of rapid development. In 1996, national steel output exceeded 100 million tons for the first time, doubled to 200 million tons in 2003, surpassed 300 million tons in 2005, and climbed to 500 million tons in 2008, ranking first in the world; in 2009, 565 million tons; in 2010, China Steel production hit another historical record, breaking through the 600 million tons mark for the first time; in 2011, it was 683 million tons. With the rapid development of the iron and steel industry, the price of iron ore has been rising year by year, and with the widespread adoption of the energy-saving an...

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Problems solved by technology

[0003] At present, there are three main sources of scrap iron and steel in my country: self-produced scrap iron and steel in steel mills, social scrap iron and steel scrap and imported scrap iron and steel. Scrap iron and steel contains a lot of impurities such as ferrous metals, non-metals, and garbage. At present, equipment such as balers and crocodile shears generally used in my country cannot meet the requirements of "high-quality scrap iron and steel" and "fine scrap" because they are not equipped with sorting and purification systems. "Materials into the furnace" production needs

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