Measures about cracks on rotary kiln

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2017-04-06 | Editor:

Great Wall has a rich experience in manufacturing rotary kiln, and its cast steel spare part: kiln tyre, kiln support roller, and kiln girth gear.
Now, let us talk about how to avoid cracks on rotary kiln.

1. Measures of longitudinal cracks

Rotary kiln longitudinal crack mainly caused by insufficient rigidity, over-large temperature, additional stress and so on. So in the design and manufacture of rotary kiln process, the thickness of the kiln body should be increased appropriately.

2 Measures of circular cracks

Enough consideration should be taken into the kiln tube thickness during design and manufacture so as to avoid the circular cracks,. The thickness of transition section should be close to the average thickness between the thicknees under kiln tyre and the thicknees of middle section, so as to facilitate the smooth deformation, and reduce the stress concentration.

3. Measures of cracks on rotary kiln transition zone

The cracks on the transitional zone is mainly because of that the kiln tube becomes thin because of the corrosion of the alkaline gas and alkaline material. Therefore, we must firstly make the isolation between alkaline materials and metal kiln tube.

4. Other measurments

For example: protect the kiln coating; protect the refractory bricks; prevent the tube temperature from uneven or too high; ensure the mechanical properties of shell material; ensure the straight speed in running state of kiln tube to reduce the additional load; normally control up-and-down speed of kiln, and so on.

For more information about kiln spare parts, welcome to contact Great Wall Steel Casting Co.

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