Retrieve CO2's limekiln device entirely

The utility model provides an utilize the hot -blast industry lime of calcining, utilize regenerative heating furnace to heat CO2 to the mineral aggregate of CO2 to prepare device, main vertical limekiln including the inner skleeve to reach the regenerative heating furnace group that provides heat energy for the limekiln, the CO2 who produces when preparing lime is by full recovery. Being carriedregenerative heating furnace group by the CO2 that is retrieved through the back of removing dust, one of them part, heating and send the limekiln again back to to 800 DEG C ~1200 DEG C after and be used for calcining the raw materials, another part CO2 that the production was calcined in the limekiln is then by recycle. The utility model discloses having reduced the limekiln time of calcining bya wide margin, having improved production efficiency, full recovery CO2 has then improved the value of limekiln system by -product. The utility model provides a limekiln system need not dispose the combustor system on the kiln