Product feature: 1. Support device: advanced shaft structure, has automatic temperature measurement and electrical heating device, meanwhile you can choose liquidity support. 2. Catch wheel: mechanical wheel and hydraulic pressure 3. Gearing: single driver or double driver. Control the revolution by yzd, dc motor and frequency variable motor. Be reliable, energy-saving, and efficient. 4. Cylinder tyre bolster: bolster has three types: fixed type, adjustable type and floating type. The structure is simple, maintenance and replacement are convenient without hurting the cylinder. 5. Sealing equipment: there are many different design of sealing style for choice according to kiln models, including air cylinder edge sealing, spring edge sealing, graphite block sealing and combination for above. The feather is adaptive for cylinder rotating and swing. And airproof performance is well. 6. Kiln head hood: including stationary type and movable type. The successful industry application of environment-friendly, energy-saving active limestone with vertical preheated and vertical cooler breaks traditional pattern of lime production, due to reduction of fuel consumption significantly and reducing exhaust emissions, coupled with the adoption of pulse-packs dust-catcher purify exhaust, not only makes production cost and the energy consumption greatly reduced, but also the calcinations process of emission slandered, environmental condition is kept substantially.