How to Reduce the Fuel Consumption in Rotary Kiln
20 October, 2012 at 12:58 am in Business
With the rapid development of the national economy, the demand for lime increased greatly. However, the price of the original fuel which is used for producing the lime also increased greatly, especially for the lime burning fuels (such as coal and combustible gas), the price is much higher. While in the lime production costs, the fuel costs account for more than 70% of the total cost. Therefore, if you want to get more profits of lime production, saving fuel is the key. Now Hongxing experts will give you some tips on how to reduce the fuel consumption of rotary kiln.
1. The choice for the type of rotary kiln is very critical. Different yields, different fuels should choose different rotary kiln with different specification. Generally speaking, choosing the rotary Kiln should depend on the production demand and the fuel category. The rotary kiln with big kiln capacity usually choose the straight kiln type, and the rotary kiln with small kiln capacity usually choose the vase kiln type, because the vase kiln type has a relatively higher heat efficiency and lower fuel consumption.
2. The material going to be roasted has a great effect on the consumption of fuel. For example, the calcining of lime is a process of the calcium carbonate decomposing into the calcium oxide. Its decomposition process is decomposed from the outside to the inside. If the particle size is too large, the decomposition process will be very slow. Even all the fuel has been used up, the lime have not been decomposed totally. This will result in the poor burning. The fuel consumption rate will be very high. And if the gravel particle size is too small, the permeability of the kiln will be affected greatly. Before the fuel using up, the lime has been already burned, which will form the over burnt. This will cause the waste of fuel.
Therefore, the material particle size and the dosage of fuel should be reasonable and in line with a certain proportion. Thus, the consumption of the fuel will be reduced and the profits of the lime production will be increased.
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