The Introduction of the Gravel Aggregate Production Line

August 02, 2015

Building stones have been used in construction for a long time. Among them, gravel aggregate is the most basic component of concrete. The quality of aggregate directly has an effect on the strength of concrete, the cement consumption, and the requirement of the temperature control, which will affect the quality of the buildings and cost.

There are three sources of aggregate: natural aggregate, artificial aggregate, compound aggregate. If you adopt natural aggregate, you should firstly choose a natural stock ground, which is of good quality, large amount, and short load distance. Only when the natural load distance is too long and it is of too much cost can you consider the artificial aggregate project.

The artificial aggregate, by the mechanical process and grading, is easy to meet the design demand. With the development of the large-scale, high efficient, and endurable aggregate processing machinery and with the advance of the management level, the cost of the artificial aggregate is close to, even lower than, natural aggregate. The artificial aggregate has many advantages. For example, the grading can be adjusted according to the demand. Its quality is stable and its management is relatively concentrated. It is barely influenced by natural elements.

As for artificial aggregate, the stone should be crushed, screened, and washed to make the gravel and artificial sand, meeting the grading, without impurities. The aggregate production line is composed according to the aggregate process flow. The aggregate crusher is the core equipment in the aggregate production line, the property of which directly has an effect on the quality of the finished product and on the investment and the operation cost of the whole aggregate production line. In the model selection of the aggregate crushers, many things should be taken into account, such as the reliability, matching, and efficiency. The selected aggregate crusher types, specifications, and the amount should meet the requirement of the flow, the product quality.

There are some layout principles of the aggregate production line. The terrain should be taken advantage of, which can reduce the foundation construction volume. It is benefit for the immediate material supply and to reduce waste material and to obtain more finished products. When less finished products are obtained, it should be considered to use the waste material to conduct the secondary crushing, which will form a closed recycling production line. The aggregate crushers, often used, are jaw crusher, impact crusher, and hammer crusher. The crushed aggregate is screened into the grading aggregate. The gravel is cleaned by the setting tank and the sand washer. After that, it will become the finished product. There are two kinds of classification methods, the hydraulic classification and the mechanical classification.

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