MICROWAVE SHAFT KILN

摘要

The present invention relates to a microwave shaft kiln. The microwave shaft kiln manufactures light-burned dolomite, and comprises: a feeding unit to store and transport dolomite; a heating unit to heat and calcine the dolomite after receiving the dolomite from the feeding unit; and a cooling and discharging unit to cool the calcined dolomite and then discharge the dolomite. Specifically, the heating unit comprises: a heating chamber to receive the dolomite from the feeding unit: a magnetron to emit a microwave in the heating chamber; and a heat generation body comprising an external heat generation body composed of 40 wt% of Si3N4 and 60 wt% of SiC, installed in the heating chamber to generate heat by the microwave, and formed in a hollow pipe shape, and an internal heat generation body composed of 40 wt% of Si3N4 and 60 wt% of SiC, installed in the external heat generation body to generate heat by the microwave, formed in a hollow pipe shape, and wherein the dolomite is disposed between the same and the external heat generation body. A calcination rate and quality of the light-burned dolomite are improved.