Rotary kiln and vertical shaft kiln are wide application calcining equipment. We introduces the advantages and disadvantages of the two kiln in the following article:

1. The vertical shaft kiln has a small floor area and relatively low heat consumption; but because of the complex structure of the kiln, the materials are calcined by sealed type, the heat is uneven, and the product has a high overburning rate. The sulfur content in the fuel is easy to adhere, and the sulfur content of the product will increase; due to the requirements of the air flow and pressure in the furnace, it is generally suitable for burning large blocks to ensure the gas permeability in the furnace.

2. The rotary kiln covers a large area and has a large heat loss. However, the kiln body is simple and has smooth air flow, which is an open calcination. The sulfur-containing flue gas can be discharged in a timely manner. Because the material is rolling evenly inside, the heat is even, and the product has high activity. Moreover, the multi-channel burner of the rotary kiln realizes environmently and energy saving, and has a wide range of raw material particle sizes, which is particularly suitable for burning small pieces of limestone.

3. The vertical shaft kiln has good closing performance, large heat loss, and relatively low fuel consumption. The rotary kiln has large heat loss due to the length of the barrel. However, after the preheating and cooling technology is used, the thermal energy can be effectively used, and its fuel consumption has been reduced. Can be reduced to a reasonable level, product production costs can be effectively controlled.

China ZK Corp is a professional calcining equipment manufacturer. Our rotary kiln and vertical shaft kiln have been exported to more than 130 countries and regions, and have been widely recognized by customers. Welcome to inquire for technical support and quotation!