Rotary kiln refractory ceramic baking, using a two-step drying process. The first step: to adopt wood-based baking. Firewood stacked in the form of well-shaped, large heap on the bottom, small on top, stacking position 0.5m ~ 5 m away from the kiln at the baking stage firewood too high not to code, the code can be 4 to 5 layers . Before ignition, the flue damper slightly raised, in order to maintain a slight flow of air flow to the kiln. After ignition, the situation is normal, kiln showing a red flame, flames slightly backward kiln tail, most of the hot flue gas flow along the wall of the kiln to kiln, a small part of the flow of the kiln. When most of firewood flames, there are signs of landing gear, open the kiln door to replenish firewood inside, and then close the kiln door. Then we must control the heating rate, as the temperature slowly increased, to observe the kiln furnace temperature was measured with an infrared temperature scanner temperature changes, and make records, to ensure a smooth heating rate (20 ℃ / h), preheat kiln firing kiln began with intermittent rotation rotate once every hour, every turn 1/4 turn (weather rain should be based on the actual situation shortened accordingly LP ask every time). This phase uses firewood baking, the whole process kiln furnace temperature control parameters according to Table 2, the heating rate to be stable, adhere to the "slow warming, do not look back", kiln temperature was measured with an infrared temperature scanner recorded once every 10 rain to avoid Ram height adjustment kiln, regenerative kiln to achieve the purpose of adding wood to adjust the frequency to control the temperature of the quantity and speed. Roller kiln workers should observe ran up and down in the warm-up process. Step Two: Using single burner coal feeding baking. When the oven temperature reaches about 1000 ℃ baking coal is available, designed to rotary kiln refractory crystalline water thoroughly baked. Open the double helix tube feeding stoker (just start feeding coal 100 kg / h or so), try to avoid smoky chimneys to prevent excessive incomplete combustion of pulverized coal was discharged kiln, kiln fan turned a little, increased to 10% in the left shutter kiln there. Up until complete combustion of pulverized coal, rotary continuous rotation up speed 1r/rain so, open granite desulphurization and dust removal system, to observe a moderate kiln kiln temperature changes. In the coal kiln baking process should also be based on the actual parameters of the furnace temperature control. Thermostat to adjust the flame shape you want to ensure the high temperature zone of about 3.5m away from the kiln, its length 3m a 5m. Baking stage, to ensure maximum kiln temperature does not exceed 400 ℃, the highest temperature of the actual operation is controlled to 386 ℃, the largest amount of coal is 200 kg / h or so. Workers need to see the fire through the flue damper height, primary air volume, kiln induced draft fan, feed coal, kiln speed and other relevant parameters matching adjustments to ensure the smooth progress of drying kiln. Refractory water vapor precipitates all, it means the end of drying kiln, kiln under check is to look at whether there is water spout cover vapor deposition, preferably with a glass on the exhaust port check to see if there is mist of water condensation . In the drying kiln process, the temperature of each detector should be tested and monitored with an infrared scanner kiln shell surface temperature changes, such as the case of local temperature, should identify the reasons for the timely processing; brick out if there should immediately stop coal, but Let kiln continued slow turn, leave to cool the kiln process. During the heating process, to check the deformation of the device after heating. Please indicate Henan YuFeng Heavy Machinery (http://www.yufchina.com)