New energy-saving vertical preheater

The new energy-saving vertical preheater rotary kiln calcination process uses the flue gas heat at the end of the kiln to preheat the marble to about 800 ℃ in the preheater, and is pushed out by a hydraulic push rod to enter the rotary kiln through a transfer chute for calcination and decomposition. Compared with the traditional process with the same specification kiln type, the output is increased by 30%, the heat consumption is reduced by 40%, the flue gas water feature <250 ℃ is convenient for dust collection, and the requirements of energy saving, consumption reduction and environmental protection are fully met.