Urgent need: with the existing coal types and ramming coking process, how to acquire external coal for blending
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Our company currently has the following coal types (the coal quality parameters are shown in the table below). If we intend to produce secondary metallurgical coke, may I ask what type of coal should be purchased for blending? Coal quality parameters: Name, Grade, Industrial analysis (%), Total sulfur (%), Phosphorus (%), Caking index, Gel layer thickness (mm), Oya expansion, Mad, Ad, Vdaf, St,d, Pd, G, X, Y, T1, T2, T3, ΔT, a%, b%. Coal No. 1: QM44 – 3.92, 7.81, 37.42, 0.60, 0.009, 50, 3**, 10.0, 384/444, 60, 33.5; only contraction. Coal No. 2: QM43 – 3.17, 10.04, 37.87, 0.52, 0.037, 48, 32.5, 8.3, 384/449, 65, 35.0; only contraction. Coal No. 3: QM45 – 2.32, 5.18, 39.54, 3.40, 0.002, 90, 37.0, 14.0, 343, 409, 445, 102, 33.0, 36.6
Are all three of these coals bituminous coal? The bonding index is different, isn’t it?
The following suggestions are for reference: 1. Quality standards for secondary coke: M25 > 88%, M10 > 8.5%, Ad > 13.5%, St < 0.8, CRI > 35%, CSR > 50%. 2. 1# and 2# should be QM; 3# should be gas-fertilized coal. JM, SM, or lean coal should also be purchased.
Thank you to all my friends. Coal No. 3 is a gas-fertilizer coal, but its sulfur content is too high, making it unsuitable for use as a blending coal. We are also looking for coking coal and fertilizer coal (or gas-fertilizer coal), but it is somewhat difficult due to the remote location of the construction site.
The caking index of 1# and 2# gas coal is somewhat low, while the ash content and caking index of 3# gas fertilizer coal are fairly good. If the price of 3# gas fertilizer coal is reasonable, it is possible to ensure St
It is recommended to visit sister manufacturers in the same region for learning purposes, in order to find an economical method for coal blending.