How to Reduce The Energy Consumption of Rotary Kiln in Magnesium Plant

The dolomite calcination is one of the main part of the thermal process in the production of magnesium metal, at present most metal magnesium plant commonly use magnesium rotary kiln as the dolomite calcination equipment. Rotary kiln has the advantages of high mechanization degree, good quality of calcination and high labor productivity and it is generally accepted as the preferred equipment for hot method. However, the high cost of fuel consumption is a common problem in magnesium kiln.At present, energy and environmental issues has great importance to national and industry, We should pay attention to energy saving problem of metal magnesium kiln.

There are 4 ways to reduce the energy consumption of rotary kiln in magnesium plant.
Adopt the refractory brick with good insulation performance as lining in cooling machine of rotary kiln. The kiln body heat preservation is very important to guarantee the craft condition and the energy conservation. The temperature of the kiln body at high temperature should not exceed 100-120℃. But there are many magnesium kiln surface temperature is much higher than this value, which is caused by abrasion of the lining and the main reason is the poor performance of the lining insulation. In recent years, high alumina composite brick has been popularized in cement and other industries because the advantages of high temperature resistance, high temperature resistance, high temperature resistance and high temperature resistance.
We can also add lifting device in the cooling machine to improve the heat transfer ability of the cooling machine. At present, most of the cooling machines are not equipped with special material lifting device, calcined dolomite only distribute below the cooling barrel body and move along with the cooling machine. In this way, calcined dolomite and air contact less, the convection heat transfer effect does not play, so the heat capacity is not strong. So we give our suggestion that install material lifting device in the cooling machine.
The lifting device is added at the end of rotary kilnto improve the ability of ore preheating. In the cement kiln and the alumina clinker kiln, the material preheating ability was greatly enhanced by the installation of lifting equipment. It is estimated that: by strengthening the capacity of the kiln tail preheat, kiln production capacity can be increased by 5%, the unit fuel consumption can be reduced by 7%. This method can also be used in the dolomite calcination rotary kiln.
Setting up ore preheating device at the end of kiln is also a convenient way. It is an effective way to use the flue gas to preheat the ore, which is a reasonable use of the tail gas to preheat the ore.
Henan Zhengzhou Mining Machinary Co., Ltd provide the energy-saving magnesium kiln for you!