Lime shaft kiln burns lime with good quality and low investment
The lime shaft kiln process, with its unique advantages, has become an ideal choice for achieving the goal of "good lime burning quality and low investment".
The lime vertical kiln adopts a vertical furnace structure, and the fuel and limestone are layered and distributed in the kiln for counter current calcination. This design allows heat to fully penetrate into the interior of the stone material, significantly improving the uniformity of calcination and effectively avoiding over burning or under burning phenomena. It ensures that the lime activity is stable at over 300ml and the calcium oxide content reaches over 90%, meeting the needs of high-end fields such as steel smelting and environmental desulfurization.
Compared to large equipment such as rotary kilns, the construction cost of vertical kilns is reduced by 40% -60%. Its modular design supports flexible expansion, with a daily output of 50-200 tons per kiln that can be adjusted as needed, and an initial investment of only one million yuan. During operation, the vertical kiln can maintain efficient calcination by using low calorific value coal or biomass fuel, with a 15% reduction in energy consumption per ton of ash compared to traditional processes. Combined with waste heat recovery devices, the overall cost is further reduced.
The lime shaft kiln has achieved a virtuous cycle of "small input, large output" through scientific technology, providing a high-quality development model for small and medium-sized lime production enterprises.
