Coal blending raw material composition for production of formed coke and preparation process of formed coke
A raw material composition and coal blending technology, which is applied in the coking oven and petroleum industry, etc., can solve the problems of low cost, poor thermal strength of molded coke, and low yield, and achieve the effect of low cost
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Embodiment 1
[0019] A coal blending raw material composition for producing molded coke, including 3% of binder, 3% of thinner, 35% of lean coal, and 59% of coking coal; the binder is purified coal liquefaction residue with a softening point of 130°C-150°C Asphalt, the thinner is metallurgical coke powder with a volatile content of less than 1.8%. The particle size of the binder is less than 0.5mm, the particle size of the thinner is less than 0.5mm, the particle size of the lean coal is less than 1mm, and the particle size of the coking coal is less than 1mm. The coal blending raw material composition is made into coal briquettes by a coal briquette hydraulic device, and the briquette coal is transported to a heat recovery coke oven for high-temperature dry distillation at a temperature of 900°C to obtain molded coke. The scorch strength is 60%.
Embodiment 2
[0021] A coal blending raw material composition for producing molded coke, including 3% of binder, 5% of thinner, 35% of lean coal, and 57% of coking coal; A mixture of purified bitumen from coal liquefaction residue at ℃ and oil sand purified bitumen whose mass accounts for 50% with an ash content of less than 1% and a softening point of 60°C-100°C. The thinning agent is metallurgical coke powder with a volatile content of less than 1.8%. The particle size of the binder is less than 0.5mm, the particle size of the thinner is less than 0.5mm, the particle size of the lean coal is less than 1mm, and the particle size of the coking coal is less than 1mm. The coal blending raw material composition is made into coal briquettes by a coal briquette hydraulic device, and the briquette coal is transported to a heat recovery coke oven for high-temperature dry distillation at a temperature of 900°C to obtain molded coke. The scorch strength was 62%.
Embodiment 3
[0023] A coal blending raw material composition for producing molded coke, including 3% of binder, 5% of thinner, 35% of lean coal, and 57% of coking coal; A mixture of purified bitumen from coal liquefaction residue at 40°C and oil sand purified bitumen with a mass proportion of 40% and an ash content of less than 1% and a softening point of 60°C-100°C. The mixture of metallurgical coke powder and lean coal whose mass accounts for 90% of the volatile content is less than or equal to 14%. The particle size of the binder is less than 0.5mm, the particle size of the thinner is less than 0.5mm, the particle size of the lean coal is less than 1mm, and the particle size of the coking coal is less than 1mm. The coal blending raw material composition is made into coal briquettes by a coal briquette hydraulic device, and the briquette coal is transported to a heat recovery coke oven for high-temperature dry distillation at a temperature of 900°C to obtain molded coke. The scorch stre...
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Abstract
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