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          What is the difference between raw ash and coarse ash in fly ash separation

            來源:www.rewardjs.com
          The comprehensive utilization of fly ash has developed from the past application of roadbed, filling, concrete admixture, soil transformation, etc. to the current advanced utilization in cement raw materials, pumped concrete, cement mixed materials, and large-scale water conservancy projects. approach. Fly ash is divided into primary, secondary, tertiary and coarse ash according to its thickness, and the coarsest is called coarse ash. The difference between raw ash and coarse ash in fly ash sorting is as follows:
          1. Raw ash refers to fly ash directly obtained from dust collection, I .e. fly ash without any sorting, grinding or other processing.
          2. In order to obtain the first-class fly ash, the fly ash is sorted to select the first-class ash (relatively fine part), and the remaining part is coarse ash. Compared with the original ash, the coarse ash is relatively coarse.
          The combustion process of fly ash: pulverized coal burns in a suspended state in the furnace, most of the combustible materials in the coal can be burned out in the furnace, and the non-combustible materials in the pulverized coal (mainly ash) A large amount of mixed in high-temperature flue gas. These non-combustible materials are partially melted due to high temperature. At the same time, due to its surface tension, a large number of fine spherical particles are formed.

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