Technical Points of Processing Fly Ash from Ultrafine Mill

Fly ash is a kind of active mineral powder resources. With the rise of fine grinding of fly ash technology, the leading advantage of the Red Star ultrafine mill not only ensures the quality of the different varieties of fly ash supplied by the power plant, but also makes it possible to broaden the development and utilization of fly ash , To improve the use of grade fly ash, and further improve the economic and social benefits. Ore Milling Equipment for fly ash grinding process of technical points are as follows: ① fly ash should beultra-fine milling machine Ultrafine Mill for fine grinding, in order to improve its reaction speed. The amount of cement in the process less + the activity of fly ash to get the maximum play, otherwise, only adding 2% to 3% of the cement is difficult to guarantee the strength. The proportion of grinding is about 20% of the total amount of fly ash. ② fly ash should be used one or two gray, three gray without treatment should not be used. In addition, it is best to use dry ash, do not use wet ash. ③ cement should use ordinary Portland cement, can not use low-alkali sulphoaluminate cement, fly ash cement, composite cement, to ensure its excitation. ④ If the ceramic density requirements are reduced, a certain amount of lightweight materials such as perlite, waste polystyrene powder or granules, wood flour, sepiolite, pumice, expanded vermiculite can be added. When the core is not, these light materials should be ground into powder, fineness of 100 to 150 mesh. Core, these lightweight materials can be used as core material, particle size of 3 ~ 5mm. ⑤ granulation water is best to use magnetized water. The use of magnetized water can increase the strength of about 10% to 15%. When the temperature is low, in order to promote coagulation, you can use 50 ~ 60 ℃ hot water. ⑥ When the natural conservation, there should be insulation and moisturizing measures. Insulation can cover grass thatch, acrylic cotton, mineral wool, etc., moisturizing can cover plastic sheeting. ⑦ When using steam curing, tunnel kiln or energy conservation can be used when the lack of funds, but also can be converted into ordinary housing maintenance kiln.

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