Machining process for scrap steel primary machining

Abstract

The invention relates to the technical field of scrap steel primary machining, and discloses a machining process for scrap steel primary machining. The machining process comprises the steps of collecting, specifically, residual steel from a steel machining factory and community waste steel scrap are collected and accumulated in an empty space of a workshop; and sorting, specifically, the collectedscrap steel is subjected to primary sorting, and the scrap steel difficult to enter a furnace for conveying and large in size is collected together and then subjected to primary machining by adoptinga cutting method. According to the machining process for scrap steel primary machining, the scrap steel is preliminarily sorted by adopting a sorting mode, different types of the scrap steel are sorted and then treated, and the scrap steel is crushed by adopting different modes so that the scrap steel can be fully crushed; and natural gas is used for cutting instead of oxygen, and the natural gasbelongs to pure energy without generating waste gas difficult to treat in the using process, and has high stability without accidents in the cutting process, so that the safety of the cutting processof the scrap steel primary machining is greatly improved.

Description

technical field [0001] The invention relates to the technical field of primary processing of scrap steel, in particular to a processing technology for primary processing of scrap steel. Background technique [0002] Scrap steel refers to the iron and steel waste that does not become a product in the production process of the iron and steel plant (such as trimming, cutting head, etc.), as well as equipment and components that are scrapped after use. , collectively referred to as scrap steel, the total amount of scrap steel produced in the world every year is 300-400 million tons, accounting for about 45-50% of the total steel output, of which 85-90% are used as raw materials for steelmaking, and 10-15% are used for casting, refining Iron and recycled steel. [0003] According to the invention CN 106277951 A authorized by China, the brick-making process of deep processing of steel scrap slag has the beneficial effect that the deep processing brick-making process of steel scra...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a processing technology for the primary processing of scrap steel, which has the advantages of safety, environmental protection and pure steel recycling, etc., and solves the problem of using oxygen cutting in the traditional primary processing of scrap steel, which is dangerous. High resistance, serious environmental pollution, and some impurities may be mixed during crushing, resulting in the problem that the recycled steel is not pure enough