![]() Rotary kiln stop the causes and specific operational methods
When the kiln large incoming wave, a large number of raw material has been poured into the firing zone, and the burning zone temperature has dropped significantly
over the raw hot spots, there will be gluten, in order to ensure the quality of clinker should be increased burning into temperature, reply as soon as possible thermal stability of the system, we must adopt the emergency measures to stop the firing. (A) the reasons for stopping the kiln careless operation, defect analysis of the situation, as well as deal with the issue is not caused by poor handling methods. Following situations prone to stop the kiln firing. 1, feed Trinidad and Tobago, raw materials burn especially poor, failed to add coal, plus wind, slow kiln, raw material Chung had the high temperature zone of the flame, was forced to stop burning. 2, out of a large number of "kiln skin" but not in time to play a small pre-climbing and to take appropriate measures to enable a large number of raw materials close to the kiln, firing temperature drops too much, was forced to stop burning. 3, for the pursuit of fast-forward rate, thick layer soon playing small does not slow, when the sintering temperature is much lower when the raw material is still fighting big climbing crossed the high temperature zone, only forced to stop the kiln. Or when the kiln incoming fluctuations, to steady kiln speed, the stop instead of hitting the slow, using top-fired stoker way, once the stand when forced to stop burning. 4, when the feed coal is uneven, less or no less than coal of coal, only pay attention to unequal treatment of coal without timely slow rotary kiln, resulting in the firing temperature dropped substantially, rushed into the burning zone of the raw material, was forced to stop burn. 5, the operation thinking, concentration, sense of duty, not a long time observing the kiln case, when found raw approximation temperature is low, add coal and slow when it was too late, was forced to stop burning. (Two) to stop operating a kiln, kiln firing stopped, we must stop feeding, turn down exhaust, and then returned to coal burner, high-temperature portion of the flame as close to the raw material. Can all burn coal in ensuring the case, add a little coal, appropriate to increase the primary air. 2, when the firing temperature is whitish, the use of intermittent rotary kiln, each brick 1/6 or 1/12 laps, so that the raw material can be uniformly heated and prevent bending kiln, rotary kiln, the kiln must be a minimum speed of rotation, to avoid a large number of raw material poured into the cooling zone. 3, when the sintering temperature is gradually increased with time, intermittent kilns time should be shortened, the number should increase until the raw material, "shadow" position stabilized, the firing temperature does not drop, they can slow continuous rotary kiln, while feeding . 4, when a longer time to stop the kiln firing, pay attention not to exceed the safe temperature kiln temperature line, to ensure the safety of equipment kiln, kiln may be appropriate to add water. The above article by Henan YuFeng Heavy Machinery finishing post!
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