Requirements for mud content and grain shape of aggregate production plant

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At present, with the increasing demand for sand and gravel aggregates, the scale of newly built sand and gravel production lines is generally above one million tons per year, and some even reach ten million tons. In order to make the whole project achieve the expected production effect, the following aspects must be considered in the initial stage of the new project construction:

How to build a new sand and gravel aggregate production line to make the product quality meet the standard

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(1) High quality of finished aggregate

High-quality aggregates (coarse aggregates and fine aggregates, fine aggregates are sand): First, the shape of the particles should be good, and the senses should be good; second, the gradation should be reasonable. Especially for machine-made sand, high-quality machine-made sand products must not only meet the sand requirements of commercial concrete, but also meet the requirements of higher standards for ready-mixed mortar sand (ready-mixed mortar is an inevitable requirement in the future. On-site stirring will be phased out over several years). Reasonable continuous grading can meet the needs of high-quality concrete. Both are indispensable.

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(2) The soil content reaches the standard

The fifth condition for the success of the sand and gravel aggregate production line is that the aggregate product of the production line must meet the requirements of soil content. High-quality concrete has higher and higher requirements for soil content. The seemingly simple problem may be the reason for the failure of the project. There is more rain in the south and water shortage in the north. Some mines contain less soil on the surface, some contain more soil, and some There are top layers of soil, and so on. Different processes need to be adopted in different situations, otherwise it will cause the failure of the project or increase the huge cost of post-transformation.

The ore characteristics of the mine determine many quality characteristics of the finished sand and gravel products in the future, which cannot be changed by changing the process flow of the production line, such as the strength index and the content of the needle-like finished products, which are also largely related to the characteristics of the ore. Alkali active substance content, mud content, etc.

After understanding these situations, it is possible to formulate the finished product quality indicators of the production line in a targeted and more objective manner, so as to select a more reasonable production process and host equipment to achieve the predetermined goals of the enterprise. As for other quality indicators, such as particle gradation, stone powder and mud content, apparent density and moisture content, the standard can be achieved by selecting an appropriate production process.

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