Double valve with a rotary charging device is gearing hopper and equipped with rotating and lifting mechanism composed of a double gate, a bell material hoist and down through the rope through the pulley differential to complete, with the roller-linking shaft section to prevent rotation of the hopper with the upper gate valve along the lower part of the rotation, the lower gate is equipped with a spiral cone with two baffle cloth, and turn 34 degrees in the lift, when the upward movement of the link established style lime kiln, the flange portion thereon in sliding and rotating helical cut with cloth cone rod, to limit rotation of the link building materials lime kiln with a ratchet mechanism, the rotation by supporting 0.8-2 cubic volume of the hopper, Drive 1.7 kilowatts of power, speed 1.3-2.7 rev / min, rotation period is 30-60 seconds, rotation angle of 60 degrees, the disadvantage of this charging device is a cross section of fabric material distribution is not uniform along the kiln, the consumption of a large quantity of steel , manufacture and operation of the more complex. Calcination of limestone in the kiln and rotary kiln, the decomposition temperature of the surface of the block can be reduced to 810-850 degrees. Magnesium carbonate decomposition at 710 degrees. Dolomite in the kiln at 600 degrees decomposition, need 700 degrees in a rotary kiln to decompose. Linyi Kim Yong Kiln Ltd. is the larger-scale research design, manufacturing, installation, commissioning and service integration kiln professional kiln company. Round lime kiln, as required to manually install the kiln lime kiln construction, labor needs of Rideau, and work sheets of large, poor operating conditions, so now also no longer used, but can still be fired in this kiln Linyi City, Kim Yong Kiln Ltd. is the larger-scale research design, manufacturing, installation, commissioning and service integration kiln professional kiln company. _ _ Shandong kiln active lime kiln furnace provided by Kim Yong Kim Yong Kiln Ltd. Linyi City. Linyi Kim Yong Kiln Ltd. (www.dfyaolu.com) (www.dfyaolu.cc) strong, credible, in Linyi, Shandong, environmental protection equipment industry has accumulated a large number of loyal customers. The company better work attitude and constantly improving innovative ideas will lead Kim Yong kiln into the brilliant and you work for a better future!