Coal gangue milled by the mill to replace fly ash as cement clinker

In the field of comprehensive utilisation of many, coal gangue by Raymond mill grinding powder instead of fly ash as cement clinker is a very important one, both to solve the land resources are occupied, environmental pollution and other issues, but also to make up for the lack of cement clinker resources, the tension of the gangue in the end what is it? Advantages of how to process into cement clinker?

In fact, the gangue has been formed in the formation of coal seams, most of the pre-limestone, over the centuries and did not mix together, long-term infiltration and spread, there will be a relatively low carbon content gradually turned black and grey, in the coal mining, excavation, coal washing process discharged. In the past coal mining gangue abandoned, occupy a large area of land, bring pollution to the natural environment at the same time also cause natural disasters, every year there will be more gangue output, in order to eliminate pollution and disasters, we began a long time ago on the gangue treatment and use.

The main role of gangue mixed into cement is to reduce the cost of cement manufacturing. But the gangue must have active substances, so in the production process, first of all, the gangue should be calcined, calcination temperature at 800 degrees when the gangue has the highest amount of activity. After calcined gangue processing and grinding can replace fly ash as cement clinker additives.

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