Rare earth steel life cycle environment influence evaluation method

Abstract

The invention discloses a rare earth steel life cycle environment influence evaluation method. The method includes assembling and quantifying the rare earth steel life cycle environment influence factors by adopting a process list analysis method; and quantitatively describing the damage degree of the environmental influence factors of the life cycle of the rare earth steel to the end point environmental influence type, calculating the weight value of the end point environmental influence type in the environmental influence caused by the life cycle of the rare earth steel through an analytic hierarchy process, and finally obtaining the total environmental influence latent value of the life cycle of the rare earth steel through weighted summation. According to the rare earth steel life cycle environment influence evaluation method, the environmental load in the whole rare earth steel production process can be scientifically, objectively and comprehensively evaluated, the list index environmental load of rare earth steel products and the distribution condition of environmental influence potential values in all stages of the life cycle are obtained through analysis, and a scientific and effective guiding method is provided for green manufacturing of rare earth steel.

Description

technical field [0001] The invention relates to the fields of rare earth steel production and life cycle assessment, in particular to a method for evaluating the life cycle environmental impact of rare earth steel. Background technique [0002] With the continuous deepening of the country's work on green manufacturing and green design product evaluation, and the continuous deepening of the concept of sustainable development, the environmental performance of products has become the focus of attention. Life Cycle Assessment (LCA) is a method to quantitatively calculate the environmental load and environmental impact of a product's life cycle. LCA can examine its environmental performance from the entire production process of the product, point out the direction and way to reduce the environmental impact of the product, and formulate measures to improve the environmental performance of the product. The decision-making scheme, so as to achieve the goal of circular economy and cl...

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Problems solved by technology

[0004] In the prior art, in CN101894329A, CN103226730A, CN105808952A and other patent documents, the life cycle and its environmental impact evaluation methods are disclosed. There are related literatures on the life cycle evaluation related research in the production process of iron and steel products, but the rare earth steel life cycle evaluation method Related research has not yet been published in the literature

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