Process for preparing coal-based agglomerated activated carbon
A preparation process, activated carbon technology, applied in inorganic chemistry, non-metallic elements, carbon compounds, etc., can solve the problems of ensuring product strength and bulk specific gravity, high vitrinite composition, poor adhesion, etc., to speed up the activation reaction speed, reduce Dosage, effect of reducing swelling and coking
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Embodiment 1
[0039] (1) clean and dry the raw materials respectively, select and remove impurities such as gangue and coal slime, then take by weighing 80kg of wide-groove non-sticky coal and 20kg of gas-fertilized coal;
[0040] (2) The raw materials weighed in the step (1) are mixed, and the medium-speed mill is used to grind the powder. The 325 mesh sieve pass rate of coal powder is about 86%, and the 180 mesh sieve pass rate is about 91%; Use 80°C hot air + nitrogen (volume ratio: 2:1) to dry coal powder; this drying process can fully contact the heat source and coal powder, and evaporate part of the water in the raw coal; add nitrogen at the same time to avoid the risk of dust explosion . Final pulverized coal moisture control <2%.
[0041] (3) The pulverized coal obtained in the step (2) is formed by a double-roller briquetting machine, the linear pressure between the double-rollers reaches 5t / cm, the temperature of the briquetting machine is controlled at 60°C, and the pulverized c...
Embodiment 2
[0048] (1) clean and dry the raw materials respectively, select and remove impurities such as gangue and coal slime, then take by weighing 60kg of wide-ditch non-sticky coal and 40kg of gas-fertilized coal;
[0049] (2) Mix the raw materials taken in step (1), and use a medium-speed mill to grind, the 325 mesh sieve pass rate of coal powder is about 81%, and the 180 mesh sieve pass rate is about 90%; Use 100°C hot air + nitrogen (volume ratio 2.2:1) to dry coal powder; this drying process can fully contact the heat source and coal powder, and evaporate part of the water in the raw coal; add nitrogen at the same time to avoid the risk of dust explosion . Final pulverized coal moisture control <2%.
[0050] (3) The pulverized coal obtained in the step (2) is formed by a double-roll briquetting machine, and the linear pressure between the double-rollers reaches 9t / cm, and the temperature of the briquetting machine is controlled at 70°C. After the pulverized coal is formed, it is...
Embodiment 3
[0057] (1) clean and dry the raw materials respectively, select and remove impurities such as gangue and coal slime, then take by weighing 70kg of wide-groove non-stick coal and 30kg of gas-fertilized coal;
[0058] (2) Mix the raw materials taken in step (1), and use a medium-speed mill to grind, the 325 mesh sieve pass rate of coal powder is about 88%, and the 180 mesh sieve pass rate is about 95%; Use 125°C hot air + nitrogen (volume ratio: 2:1) to dry coal powder; this drying process can fully contact the heat source and coal powder, and evaporate part of the water in the raw coal; add nitrogen at the same time to avoid the risk of dust explosion . Final pulverized coal moisture control <2%.
[0059] (3) The pulverized coal obtained in the step (2) is formed by a double-roller briquetting machine, the linear pressure between the double-rollers reaches 12t / cm, the temperature of the briquetting machine is controlled at 85°C, and the pulverized coal is called a briquetting ...
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