Simple but Helpful Knowledge on Rotary Kiln Using
Rotary kiln calcination of Portland cement, its main mineral composition including tricalcium silicate, dicalcium silicate, aluminum acid calcium, Fe-Al-calcium acid four of four parts. Alias known as Portland cement, clay and limestone as raw material, clinker by the rotary kiln high temperature calcination of calcium silicate as the main ingredient, add 0-5% of the mixed material and the amount of plaster made from finely ground water cement matrix.
Portland cement calcining process their remaining material preparation and grinding, calcination of raw materials, have guessed that pulverized the three basic process. Which, after the calcination process of cement rotary kiln portland cement as follows: the first stage of prepared raw material usually will enter the second phase of the material in the rotary kiln calcination, so that after processing the raw meal containing oxidized the chemical composition of calcium, silica, aluminum oxide, oxide of iron and other chemical reactions in the cement rotary kiln, until calcination to generate about 1500 degrees of calcium silicate as the main component of Portland cement clinker.
In the application of rotary kiln, it is most widely used in the cement industryt. The whole production process of cement can be summarized as ‘two grinding one burn’, the’ burn’ refers to that the raw materials after ground and well confected will be firing to clinker under high temperature of the rotary kiln. Henan hongxing will tell the details of the feeding procedure of cement rotary kiln: To a service-oriented brand integrity,As the professional manufacturer of complete sets of mining machinery, like cement mill, Henan Hongxing is always doing the best in products and service.stone crusher plant:http://www.hxjqchina.com/n69.html
1. Tell the site inspector stop the kiln slow rotating and separate the kiln from slow turning clutch, set the kiln at a speed of 0.4 ~ 0.5rpm and then start the kiln motor;
2. Close the entrance baffle of the high temperature fan, set the speed at 200rpm, start the main motor. When the fan runs smooth, you can gradually open the fan entrance baffle. And adjust the rotating speed of the fan based on the outlet pressure of pre-heater;
3. According to the wind pressure situation of the kiln hood, start the remaining fan of the cooling machine;
4. The first feeding of the rotary kiln should be 100t / h;
5. When feeding, the wind, material, coal changes greatly. You should notify the site inspector roll levels of flap valve to ensure the feeding smooth;
6. Notify the raw material system adjust the outlet fan baffle opening of the electric dust and ensure outlet negative pressure of the exhaust fan about – 150 ~ – 300Pa. And spray water when the kiln exhaust fan outlet temperature reached 190~200 degrees;
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