Cement mixture utilizing industrial waste residues comprehensively and preparation method

Abstract

The invention discloses a cement mixture utilizing industrial waste residues comprehensively and a preparation method, and aims to solve the problem of serious resource consumption in the prior art. In the cement mixture utilizing the industrial waste residues comprehensively, cement comprises the following raw materials: coal, limestone, pulverized fuel ash, fly ash and papermaking waste residues. In order to fulfill the aim, the preparation method for the cement mixture utilizing the industrial waste residues comprehensively at least comprises a step of preparing the raw materials, namely crushing the raw materials for the coal and the limestone to form a preset size; and mixing the mixture with the pulverized fuel ash, the fly ash and the papermaking waste residues. In the cement mixture, clay, ironstone and part of coal are replaced by utilizing the fly ash and the papermaking waste residues which are generated in pulverized fuel ash plants and ironmaking plants, so that waste canbe recycled, and resource saving and environmental protection are facilitated.

Description

technical field [0001] The invention relates to a comprehensively formulated cement mixture utilizing industrial waste residues and a preparation method thereof Background technique [0002] In the traditional cement production process, limestone, clay, iron stone, coal, etc. are generally used as raw (fuel) materials, and then the above raw (fuel) materials are added to raw materials in a certain proportion and ground into powder (fineness maintained at 0.08 mm), and then mixed evenly to form raw meal powder, which can be burned to make cement clinker. [0003] In the above-mentioned process, the process of grinding raw materials into powder requires a large amount of energy consumption, and due to the high requirement for fineness, the requirements for abrasive equipment are also high, resulting in high production costs. Contents of the invention [0004] In order to overcome the above-mentioned defects, the present invention provides an energy-saving and environment-fr...

AI Technical Summary

Problems solved by technology

[0003] In the above process, the process of grinding raw materials into powder consumes a lot of energy, and because of the high requirements for fineness, the requirements for abrasive equipment are also high, resulting in high production costs