Preparation method for phosphorous slag Portland cement clinker

A Portland cement and phosphorous slag technology, applied in cement production, clinker production, etc., can solve problems such as environmental pollution and large space occupation, and achieve the effects of reducing costs, reducing emissions, and protecting the environment

Inactive Publication Date: 2015-06-10
青岛昊河水泥制品有限责任公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, waste residues such as by-products of other industries continue to discharge a large amount of waste to the society, and these wastes are usually disposed of through landfills, which not only easily pollutes the environment, but also takes up a lot of space

Method used

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  • Preparation method for phosphorous slag Portland cement clinker
  • Preparation method for phosphorous slag Portland cement clinker
  • Preparation method for phosphorous slag Portland cement clinker

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Embodiment 1: The weight ratio of each raw material is limestone 78, sulfuric acid slag 6, river sand 2.5, phosphorus slag 10, tailings 2, the chemical composition and mineral composition of the phosphorus slag Portland cement clinker product thus obtained See Table 1, and its physical and mechanical properties are shown in Table 2.

Embodiment 2

[0025] Embodiment 2: The weight ratio of each raw material is limestone 80, sulfuric acid slag 5.8, river sand 2, phosphorus slag 12, tailings 3.5, the chemical composition and mineral composition of the phosphorus slag Portland cement clinker product thus obtained See Table 3, and its physical and mechanical properties are shown in Table 4.

[0026] Chemical composition and mineral composition of table 1 embodiment one phosphorus slag portland cement clinker product

[0027]

[0028] The physical and mechanical properties of table two embodiment one phosphorus slag portland cement clinker products

[0029]

[0030] Chemical composition and mineral composition of table three embodiment two phosphorus slag Portland cement clinker products

[0031]

[0032] Table four embodiment two phosphorus slag Portland cement clinker product physical and mechanical properties

[0033]

[0034] As can be seen from the above experimental data, the present invention utilizes indu...

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Abstract

The invention discloses a preparation method for phosphorous slag Portland cement clinker. The clinker is mainly prepared by mixing limestone, sulfuric acid slag, river sand, phosphorus slag and tailings according to a weight ratio of 75-80: 5.5-6.5: 1.8-2.8: 9-13: 1-4.5, wherein the sulfur acid slag is industrial waste of sulfuric acid plants; the phosphorus slag is water-quenched waste slag discharged during preparation of phosphorus by using an electric-furnace sublimation method; and the tailings are residual tailings of mining industry and contain the trace elements Pb and Zn. By using industrial wastes--the phosphorus slag, the sulfuric acid slag and the tailings as raw materials to prepare low environmental coincidence type phosphate cement clinker, the preparation method provided by the invention overcomes the problem of resource shortage of high-quality limestone, clay and iron ore, provides an ideal way for the treatment of industrial wastes, saves resources and energy sources, reduces emission of pollutants and is favorable for protecting environment and reducing cost.

Description

technical field [0001] The invention relates to a method for preparing phosphorus slag Portland cement clinker, which belongs to the field of inorganic materials. Background technique [0002] Cement clinker is a semi-finished product obtained by using limestone, clay, and iron as the main raw materials, which are configured into raw materials in an appropriate proportion, burned until part or all of them are melted, and cooled. With the development of society, as the most widely used building material, the demand for cement is increasing, which leads to the continuous reduction of raw material resources for the production of cement clinker, while the energy consumption and the generation of pollutants are increasing. , thus turning the cement industry into a serious polluting enterprise. However, waste residues such as by-products of other industries continue to discharge a large amount of waste to the society. These wastes are usually disposed of through landfills, which ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B7/24C04B7/36
CPCY02P40/10Y02P40/121
Inventor 王传波崔凯王风民田斌邓国威
Owner 青岛昊河水泥制品有限责任公司
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