Coking and coal blending method with participation of gas coal
A gas-coal and coal blending technology, which is applied in the field of coking coal blending in which gas-coal participates, can solve problems such as low blending amount, large coke lumpiness, and poor wear resistance
Active Publication Date: 2012-08-01
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Problems solved by technology
The invention discloses a coking and coal blending method with participation of gas coal, which comprises the step of blending the gas coal with the caking index G value of 50-70; coking coal No.1 with the coking coarse grain mosaic texture proportion of more than 60 percent; coking coal No.2 with the coking coarse grain mosaic texture proportion of below 60 percent; fat coal with the maximum Gieseler fluidity (MF) of more than 60000ddpm, the Arnu-Audibert's dilatometer b value of more than 150 percent, and the coking coarse grain mosaic texture proportion of more than 40 percent; and blending 1/3 coking coal and lean coal; and controlling briquette blend to be with the coking coarse grain mosaic texture proportion of more than 35 percent, the caking index G value of 79-82, and the thickness of colloidal matter layer of 17-19mm. Due to the prepared briquette blend, not only is the compounding amount of the gas coal increased to 5-15wt percent, but also the compounding amount of the coking coal and the fat coal is reduced, the coking coal resources can be utilized reasonably, the coal blending cost is reduced, the CSR of the coke refined through a coke oven with the height of more than 6m is greater than 63 percent under the technological conditions of non-step crushing, briquette coal process or tamping coking and the like.
- Experimental program(1)
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