Preparation method of phosphorus slag portland cement chamotte and preparation method thereof

Abstract

The invention relates to a preparation method of the phosphorus residue portland clinker. The clinker is includes limestone, pyrite residue, river sand, phosphorus reside and gangue raw material. It is formed by the following steps that the raw material is mixed in proportion, used pulverizing together and fired by the pre-decomposition kiln system at the condition of new type dry method cement system. The weight mixing proportion of the raw material orderly is from seventy to eighty five, from five to seven, from one point five to three, from eight to fifteen, and from zero point five to five. The invention can use the industry waste that phosphorus reside, pyrite residue and gangue as the raw material to prepare the low temperature loading type portland clinker. So it can solve the shortage of the fat limestone, clay, and iron ore, as well as supply a perfect approach for industry waste processing. Moreover, it can save the resource and energy source, reduce the pollution discharging, and is good for reducing cost, protecting environment, and increasing output and quality of the clinker, so that it is easy to popularly use in the new type dry method cement plant.

Description

technical field

[0001] The invention relates to the field of building materials, in particular to a method for preparing phosphorus slag Portland cement clinker. Background technique

[0002] At present, the main raw materials for cement clinker production are high-quality limestone, clay, iron ore (or iron powder). With the development of society, the demand for cement, the most widely used building material, 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 Turn the cement industry into a serious polluting enterprise. At the same time, waste residues such as by-products of other industries continue to discharge a large amount of waste to the society, which is usually disposed of through landfills, which not only easily pollutes the environment, but also takes up a lot of space. Contents of the invention

[0003] The tec...

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