Production process of coke by preheating coal and stacking
A production process and stacking technology, which is applied in the field of preheating coal stacking coke production process, can solve the problems of increasing cost, wasting energy, increasing moisture, etc., and achieve the effects of increasing the initial temperature of dry distillation and shortening the coking time.
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Embodiment 1
[0044] A preheated coal stacking coke production process, comprising the following steps:
[0045] 1) Pretreatment: Preheat the coal materials respectively, preheat the caking coal to 200-300°C, preheat the weakly caking coal to 250-380°C, pulverize the above coal materials, and press the caking coal , Coal blending ratio of 50% by weight of weakly cohesive coals, weighing the corresponding pulverized coal materials without adding binders and mixing to obtain raw coal, the particle size of the pulverized coal materials is less than 2mm;
[0046] 2) Molding: The raw coal is hot-pressed to obtain molded coal, the compression ratio of hot-pressed molding is greater than 2:1, the forming pressure is greater than 20MPa, and the density of hot-pressed molded coal obtained is ≥ 1.25 tons / m 3 ;
[0047] 3) Palletizing: Palletize the briquettes into a coal wall and put them on the coal dragging plate of the coal loading truck, and one side is blocked by the coal dragging baffle. The ...
Embodiment 2
[0052] A preheated coal stacking coke production process, comprising the following steps:
[0053] 1) Pretreatment: Preheat the coal materials respectively, preheat the caking coal to 200-300°C, preheat the weakly caking coal to 250-380°C, pulverize the above coal materials, and press the caking coal , Coal blending ratio of 50% by weight of weakly cohesive coal, weighing corresponding pulverized coal material and adding binder and mixing to obtain raw coal, the particle size of pulverized coal material is less than 2mm;
[0054] 2) Molding: The raw coal is hot-pressed to obtain molded coal, the compression ratio of hot-pressed molding is greater than 2:1, the forming pressure is greater than 20MPa, and the density of hot-pressed molded coal obtained is ≥ 1.25 tons / m 3 ;
[0055] 3) Palletizing: Palletize the briquettes into a coal wall and put them on the coal dragging plate of the coal loading truck, and one side is blocked by the coal dragging baffle. The coal wall is loa...
Embodiment 3
[0060] Taking the existing 5.5-meter tamping coke oven as an example, carry out transformation, and the target annual output will increase by 200,000 tons:
[0061] 1) Calculation of preheated briquette forming machine
[0062] Molding machinery is the key equipment for production, which has a great influence on the production efficiency and quality of products. According to the requirements of this process, hot press molding equipment with large production capacity is required.
[0063] This design requires 60 holes to be filled with briquettes per day, each hole requires 1330 pieces of briquettes, and the daily working hours are 21 hours, that is, the briquettes required per hour are:
[0064] N 0 =(60×1330)÷21=3800 pieces
[0065] The model of the selected press is SKM600-6B, the rated pressure is 31.5MPa, and a single piece of equipment can produce 1 piece of briquette in an average of 7 seconds, that is, each machine can produce briquette per hour
[0066] n=3600÷7=51...
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