How to judge whether grate cooler is in control state? -Henan Red Star

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How to judge whether grate cooler is in control state?

Grate cooler is an important part of the rotary kiln system. Whether its working state is in the control state or not is closely related to the working efficiency of the kiln and clinker. Therefore, it is necessary to ensure that the grate cooler is in the control state. So, how to judge whether the grate cooler is in the control state?

Running state of grate cooler

The thickness of the material layer in the high temperature section should be about 800mm, and the small proportion should be about 600mm. The material layer is even, and the red material is not more than 3m from the feeding end, and the red material is only on the upper layer of the bed. The material layer in the low temperature section is about 200 mm thinner than that in the high temperature section. It can be seen that the cooling air spouts upward above the material layer, but there is no short-circuit air flow, so there should be no "Red River" phenomenon. The clinker particles are evenly distributed in the cross section of grate cooler, and there is no segregation of large and small particles. When large blocks and kiln skin appear, they should float above the clinker layer.

Regular observation of the operation state of grate cooler is not only necessary for the normal operation of grate cooler itself, but also for the normal operation of kiln system. If the camera position of the production line is not correct or can not be used, the observation hole at the hot end of the grate cooler is also blocked, so the inspectors can not observe the operation of the grate cooler, so as to obtain such important original information as the thickness of clinker layer, the distribution of clinker layer, the size of clinker, the amount of large blocks and kiln skin, the position of red material and the state of cold air blowing in, which will inevitably lead to misjudgment of operators Wrong operation. It can be seen that the correct position of the camera and the normal operation of the observation hole in front of the cold end of the grate cooler and the normal use of the observation window of the grate chamber are very important.

Another condition to ensure that the grate cooler is in operation is that the grate chambers with different air pressure shall not leak into each other, and no clinker is allowed to leak under the grate bed.

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