Regarding the coal blending plan
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Our factory produces coke; 9% of the coal used is hard coking coal, 29% is bituminous coal, 32% is semi-coking coal, 16% is a mixture of rich coal and bituminous coal, and 14% is lean coal. Can good-quality coke be produced with this combination of coals?
With too low a proportion of coking coal, it is impossible to produce high-quality coke
The ratio of primary coke coal to fatty coal and gas-coke coal is indeed a bit low; however, it is also necessary to consider the specifications of each type of coal in order to make a comprehensive prediction of the quality of the coke.
If you fiddle with it like that, it’s bound to get burnt; if it’s pre-assembled, then it’s a bit too thin
Reply 4# sxlfsyl refers to ramming coking
Need I say it? It’s impossible to produce good coke, as the ratio of coking coal to fat coal is too low
What is an appropriate amount for coal and fat coal combined?
Looking at the coal mix specified by the poster, it is sufficient for producing metallurgical secondary coke if coking is carried out; there is a shortage of coking coal, but the amounts of bituminous coal, gas-bituminous coal, and 1/3 coking coal are acceptable (with good quality required). It is difficult to produce coke of higher grade than secondary coke.
Where does your 1/3 coking coal come from?
Even with ramming, if the main coking ratio is not ensured, good coke cannot be produced……
No, it’s difficult to compact them – there’s very little high-quality coking coal. If the other coals are of good quality, then it might still be possible