The Quality of Coal & Composite Dry Coal Preparation

(1) The content of large chunks of visible gangue is 11.06%, so this coal belongs to high level gangue, the initial determination is to use mechanical discharge; and the ash of the gangue is 83.62%, higher than 80.00%, so the gangue is mixed when mine the top and bottom in the mining.
(2) More than 50mm coal content is 14.76%, Ash is 72.07%, so the maximum size of the selection should not be too high.
(3) Coal granular grade 3-0.5mm, accounting for 23.02% of the total raw coal sample, the coal species 6-0m grain grade content is close to 50% of the full sample, and +50mm granular content is accounting for less than 14.76%; 6-0mm content is accounting for 45. 57%, indicating that the hardness of the coal is not high.
(4) Granular ash of each level does not decrease significantly with the decrease of granularity, which indicates that there are no much gangue in fine grain grade and the coal quality is friable;
(5) The ash ratio of primary coal slime ( -0.5mm granular grade) is lower than that of coarse-grained ash, so it can be preliminarily determined that the gangue is not muddy easily, so the coal washing water treatment is more convenient (for example, the coal slurry water treatment procedure can be avoided if use dry coal selecting method).

Doing a good job of coal quality analysis is the first step to buy coal preparation equipment and choose dry coal preparation technology. Zhengzhou Dongding as a professional coal preparation equipment manufacturer, over the years, has accumulated a wealth of project experience, can help customers to develop different coal preparation process. Any need, please contact us!