Kiln Product Information : improving combustion reducing kiln ash and ring phenomenon improving combustion reducing Kiln ash circle phenomenon, reducing kiln ash fuels , in the use of high- ash fuels , the following measures should be taken to reduce or eliminate kiln after lap . High ash , fly ash mixed with increasing amounts of material and reduce the melting temperature of the material , the liquid phase occurs prematurely , the opportunity to increase after the end of lap inevitable . Found to have thick skin kiln phenomenon should take timely measures to deal with it in spurts , and to prevent the formation of ring post . Depress coal fineness , fineness improve the pass rate ; reduce the moisture content to accelerate coal combustion . Timing Activities coal pipe , changing the position of the flame , ash settling changing area . Ingredients change program to reduce melt medium mineral content , an appropriate increase in the rate of silicic acid . Without prejudice to the calcination temperature and the tail fell more cases, try using a shorter flame , concentrated firepower to achieve a higher burning zone temperature , pulverized coal combustion and rapid , short large heat release purposes . Changes in the crystal rotary kiln . Rotary kiln for the desired time is not the same type of material , not the same degree of calcination and the crystals are not the same . Crystals formed from the conversion of view there is some minor changes. In addition to dehydration desulfurization kiln outside the most critical part of the pigment particles forming stage , the conversion rate on the crystal form , particle size and shape have a decisive role. Crystal formation to grain growth can not be too fast , you need to have enough time to make the lattice gradually grew , neat and proper residence time is necessary. However, long residence time , temperature will affect the yield , it is easy to make the material sintering ; time is too short it will not burn through, crystal transformation is not complete, lower the pH . General to ensure that the material can be controlled through the kiln residence time speed. Calcining kiln relevant technical information