Production method of steel slag aggregate for asphalt concrete

A technology for asphalt concrete and a production method, which is applied in the directions of climate sustainability, sustainable waste treatment, solid waste management, etc., can solve the problems of large mud content, not rich in angularity, and large variability of steel slag aggregate specifications, etc. It can achieve the effect of easy breakage, obvious environmental protection benefits, and improved surface cleanliness and surface alkalinity.
CN104591572BInactive Publication Date: 2017-01-25葛洲坝武汉道路材料有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
葛洲坝武汉道路材料有限公司
Publication Date
2017-01-25
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to a production method of a steel slag aggregate for asphalt concrete and belongs to the technical fields of processing and production of road aggregates. The production method particularly comprises the steps of feeding, crushing, sieving and water washing. According to the production method, steel slag raw materials are subjected to second-grade crushing, three times of magnetic separation processes and five times of sieving processes so as to separate aggregates of different specifications; the surfaces of the aggregates are cleaned with high pressure water, and a five-stage settling pond is arranged to circularly utilize flushing water. According to the production method, the problems that a steel slag aggregate product produced by virtue of a traditional production process is large in specification variability, poor in angularity and high in silt content are solved, the high-efficiency production is realized, and the high-quality steel slag aggregate for the asphalt concrete is produced.
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Description

technical field

[0001] The invention belongs to the technical field of road aggregate processing and production, and in particular relates to a production method of steel slag aggregate for asphalt concrete. Background technique

[0002] Steel slag is the slag discharged during the steelmaking process and is the main solid by-product of the smelting industry. The application of steel slag with excellent performance in the preparation of asphalt concrete instead of part of the natural gravel can not only improve the comprehensive performance of asphalt concrete, but also have great significance for improving the economic benefits of iron and steel enterprises, promoting the sustainable development of the iron and steel industry, and strengthening the protection of the ecological environment. .

[0003] Coarse steel slag that has not undergone further processing (such as slag mountain cooling method) will still have a particle diameter of about 30 cm or more after natural cra...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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