Preparation method of industrial waste residue mixed ore powder

Abstract

The invention relates to a preparation method of industrial waste residue mixed ore powder, which mainly comprises the following steps: proportionally mixing and forming waste alkali residue discharged after producing industrial crystal soda in salinization plants, waste steel residue discharged by steel plants, waste residue straw ash discharged by straw power plants and waste residue titanium gypsum discharged by titanium white plants, drying at 250 DEG C, and the like. The method can change piled unmanageable alkali residue (which pollutes the underground water resources) and other industrial waste residues into valuable substances to obtain the industrial waste residue mixed ore powder product which can completely substitute the resources-short price-increasing slag powder. Various properties of the produced mixed ore powder product can achieve or exceed quality indexes for slag powder, and thus, the mixed ore powder product is a high-quality concrete admixture; the maximum doping amount of the mixed ore powder product in the concrete is up to 50%, and thus, the method can change wastes into valuable substances and perform harmless and decrement treatment on the industrial waste residues; and the method has the advantages of advanced and reasonable technique, low investment, low cost, high benefit, no pollution or waste residue emission in the production process, and the like.

Description

technical field [0001] The invention relates to a method for producing mixed slag powder by using industrial waste slag such as alkali slag and steel slag as raw materials. The mixed slag powder produced by the method can directly replace slag powder and belongs to the field of environmental protection or new materials. Background technique [0002] The industrial waste slag involved in the present invention includes alkali slag, steel slag, waste residue straw ash, and waste residue titanium gypsum, wherein the alkali slag is the waste residue (called alkali slag) discharged after the production of industrial lime in a salinization plant with a moisture content of 30 to 50 %, containing chemical components such as CaO and CaCl, because the alkali slag contains a certain amount of CaCl and cannot be directly used for the production of building materials. At present, enterprises can only spend a lot of money to bury the alkali slag at an area 1,500 meters underground. At pres...

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Problems solved by technology

[0003] The purpose of the present invention is to solve the above-mentioned problems such as landfilling of alkali slag, which wastes and pollutes the environment, and processes industrial waste residues such as alkali slag to replace slag powder to provide a method for preparing industrial waste slag-type mixed mineral powder.

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