Rotary kiln and cement ball mill in cement production line

Sampling port is generally provided in the center or tail, may also be provided in the cement rotary kiln drying or calcination zone junction, its structure and thermometer port are same.
The temperature measuring devices in the Rotary Kiln have temperature measuring device with a fork and slip ring temperature measurement device, temperature measuring device with a fork has accurate temperature measurement, temperature measurement ports not easy to block, etc., but increased transmission to make the structure complicated. Slip ring temperature measuring device structure, thermocouple cables connected through slip rings and thermometer, measure the horizontal kiln temperature throughout. The slip ring can be used simmer by copper rods, rod-sectional diameter with 20 mm -30 mm is appropriate, and the slip ring diameter is 1.1-1.3 times of the outer diameter of the cylinder. The slip ring is made of insulating pillars fixed on the barrel of the cement ball mill, in accordance with slip ring arc length of 600 mm -700 mm spacing, arranged a pillar, so that it is more conducive to the slip ring temperature measuring device for measuring the temperature of the rotary kiln.
Due to circumgyrate cement kiln shell is actually neither straight nor round, resulting the riding wheel and wheel contact stress unevenness, a heavier contact part, contact press increase, some even exceed, the lighter parts of contact stress reduce which is different from Rotary Dryer. If contact stress increase excessively, the riding wheel is easy to squash,spalling and pitting, even breakage. In addition, it can increase the wheel bearing’s radial and axial load, two bearing on the same riding wheel stress unequal, resulting tile burning, turn tile, even make the bearing cover falling or damage, reducing the operation rate of the rotary kiln.
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