Differents of surface mining and tradditional mining for coal grinding plants
More than 50% of surface mining operations use independent third-parties in some way, compared with 30% of underground mines using third-party suppliers.
The traditional use more artificial coal mining technology, mining technology is not very mature, in the traditional coal mining technology which, in methane drainage will directly affect the normal operation of the mining operations, this process will be complete without the gas released into the air to go, and then it will cause serious air pollution.
Mining now use multi-purpose machinery and equipment, environmentally friendly mill, we can put a second coal mine beneficiation process used the vertical roller mill, raymond Mill, ball mill and so on, and limestone desulfurization process, to reduce pollution to a minimum, put some gas recycling, improve environmental standards.
Strategic parts for surface mines had the lowest percentage of third-party company involvement – either purely third-party use or in conjunction with OEMs – with only 51%. This proportion rose to 58% and 60% for non-strategic parts and processing equipment respectively. Underground mines incorporate third-party companies on a much lower scale. Strategic parts, for example, are sourced either partially or wholly from third-parties by only 28% of respondents, and only 20% of respondents rely purely on third-parties for non-strategic parts.
Breaking respondents down into commodity categories showed some clear differences. Coal producers were more in favor of a ‘work with me’ support structure, with 88% of this segment preferring that approach. Respondents from mineral sands mines, in contrast, had the highest preference for completely in-sourcing equipment support with 33%. When it comes to outsourcing equipment support, base metal respondents had the highest proportion preferring this option at 37%.
Spodumene: According to the hard rock crushing process, the crushed product is generally 5-40mm, combined with different design requirements of customers, two-end or three-stage crushing, high-grade crushed products (above 4-5%) can be directly used in the metallurgical process to produce lithium carbonate Or lithium hydroxide, the particle size of the finished product is generally around 20-40mm; low-grade generally requires ball mill grinding and separation, and the particle size of the finished product is generally around 5-20mm;
