A kind of coking method for improving the lump degree of tamping coke and tamping coke prepared by the method

Abstract

The invention provides a coking method for increasing the degree of tamped coke lumps and tamped coke prepared by the method. In the method, the coking time, coking rate, and heating standard temperature during the tamping coking process are adjusted according to the actual index of the incoming coal relative to the benchmark index and the coke quenching method, so as to increase the lumpiness of the tamping coke. The method can not only improve the lumpiness of tamping coke, but also is suitable for coking production of any furnace type tamping coke oven, and there is no difficulty in pushing coke during coking production, and the coke oven wall will not be damaged.

Description

technical field

[0001] The invention belongs to the field of coking in the coking industry, and in particular relates to stamped coke and a production process thereof. Background technique

[0002] One of the main functions of coke on blast furnace ironmaking is the skeleton effect of the furnace charge. Only an appropriate average particle size of coke can ensure the stable and high production of the blast furnace. The larger the type of blast furnace and the higher the coal injection ratio, the higher the requirements for coke particle size and strength. Due to the substantial increase in the bulk density of coal materials and the addition of a large proportion of high-volatility coal in rammed coke, the cracks of the coke cake increase, so that most of the coke is slender, the large coke larger than 60mm is reduced, and the coke smaller than 40mm The proportion of small focal blocks is increased. Therefore, one of the main restrictive factors for the application of tamp...

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