Powdery high-activity calcium oxide and production process thereof
A production process and high activity technology, applied in the direction of calcium/strontium/barium oxide/hydroxide, etc., can solve the problems of waste of limestone resources, secondary disasters, land occupation, etc., achieve less overburning rate, improve thermal insulation Efficiency, uniform heating effect
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Embodiment 1
[0026] The production method of powdery highly active calcium oxide in the present embodiment may further comprise the steps:
[0027] (1) Use a crusher to crush the limestone ore into unequal small pieces of crushed material. The coarse material produced is sent to the pulverizer through the electromagnetic vibrating feeder, and the oversized ore is returned to the crusher. broken. The mill grinds the limestone into a powder with a particle size of 0.1-3mm;
[0028] (2) The powdered limestone that meets the requirements after the grinding treatment is directly put into the 5-stage cyclone preheating cylinder for suspension preheating and decomposition. The insulation layer is 2cm to 4cm. The preparation method of the insulation layer is as follows: 20 parts of kaolin, 5 parts of foaming agent, 15 parts of aluminum silicate, 8 parts of glass fiber, 10 parts of nano-silica airgel, dihydrogen phosphate 10 parts of aluminum and 20 parts of water are mixed evenly, then placed in...
Embodiment 2
[0032] The production method of powdery highly active calcium oxide in the present embodiment may further comprise the steps:
[0033] (1) Use a crusher to crush the limestone ore into unequal small pieces of crushed material. The coarse material produced is sent to the pulverizer through the electromagnetic vibrating feeder, and the oversized ore is returned to the crusher. broken. The mill grinds the limestone into a powder with a particle size of 0.1-3mm;
[0034] (2) The powdered limestone that meets the requirements after the grinding treatment is directly put into the 5-stage cyclone preheating cylinder for suspension preheating and decomposition. It is an insulation layer of 2cm to 4cm. The preparation method of the insulation layer is as follows: 30 parts of kaolin, 3 parts of foaming agent, 10 parts of aluminum silicate, 15 parts of glass fiber, 5 parts of nano-silica airgel, dihydrogen phosphate 8 parts of aluminum and 15 parts of water are mixed evenly, then place...
Embodiment 3
[0038] The production method of powdery highly active calcium oxide in the present embodiment may further comprise the steps:
[0039] (1) Use a crusher to crush the limestone ore into unequal small pieces of crushed material. The coarse material produced is sent to the pulverizer through the electromagnetic vibrating feeder, and the oversized ore is returned to the crusher. broken. The mill grinds the limestone into a powder with a particle size of 0.1-3mm;
[0040] (2) The powdered limestone that meets the requirements after grinding treatment is directly put into the 5-stage cyclone preheating cylinder for suspension preheating and decomposition. It is an insulation layer of 2cm to 4cm. The preparation method of the insulation layer is as follows: 40 parts of kaolin, 0.5 parts of foaming agent, 5 parts of aluminum silicate, 20 parts of glass fiber, 0.5 parts of nano-silica airgel, dihydrogen phosphate 5 parts of aluminum and 25 parts of water are evenly mixed, then placed...
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