A kind of superfine fly ash production system and production process

Abstract

The application relates to an ultra-fine fly ash production system and production process, and relates to the field of fly ash production. The ultra-fine fly ash production system includes a feeding device, a first ash conveying device, an ash mill, a second The ash conveying device, the lifting device, the third ash conveying device, the powder selecting device, the powder collecting device, the powder feeding device and the finished product warehouse, a first valve is set between the first ash conveying device and the ash mill, and the first ash conveying device A pre-wind separation ash conveying device is arranged between the first ash conveying device and the second ash conveying device, the outlet of the first ash conveying device communicates with the inlet of the pre-weather ash conveying device with a feed pipe, and the pre-wind select ash conveying device The outlet of the ash conveying device communicates with the inlet of the second ash conveying device through a discharge pipe, and the feed pipe is provided with a second valve. This application has the effect of improving the quality of fly ash.

Description

technical field [0001] The application relates to the field of fly ash production, in particular to an ultrafine fly ash production system and production process. Background technique [0002] Fly ash is the fine ash collected from the flue gas after coal combustion. Fly ash is the main solid waste discharged from coal-fired power plants. The main oxide composition of fly ash in thermal power plants in my country is: SiO 2 、Al 2 o 3 , FeO, Fe 2 o 3 , CaO, TiO 2 Wait. With the development of the power industry, the discharge of fly ash from coal-fired power plants has increased year by year, becoming one of the largest industrial wastes in my country. If a large amount of fly ash is not treated, it will generate dust and pollute the atmosphere; if it is discharged into the water system, it will cause river silting, and the toxic chemicals in it will also cause harm to human beings and organisms. However, fly ash can be used as a resource, such as as an admixture for c...

AI Technical Summary

Problems solved by technology

The fly ash produced by the related technology is Class I, II and III fly ash, and the fineness of the best quality Class I fly ash is 45 μm square hole sieve ≤ 12%, which is equivalent to 12% of the fly ash The gray fineness is greater than 45μm, the reactivity is low, and the quality needs to be improved

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