multi crushing plant

The biggest change, which is now being introduced into the design of crushing plants is the design of the mining process as one complete system, from mine quarry and pit to the final product. Digital image analysis is now allowing electronic monitoring of the size distribution of the material being handled at any point in the product stream.

Safety and the working environment remain the two areas of plant design, which require more attention. Noise abatement and the reduction of dust emissions remain the goals of most operators and crushing plant designers.

The selection of the types of flooring in a crushing plant is always controversial. Some selections are grating, checker plate and concrete. Checker plate flooring allows for easier clean-up and does not allow for smaller rocks or spillage to any floors below. (The most suitable flooring for conveyor galleries in northern climates is wood.)

Installing a primary crushing plant on solid rock reduces the cost of concrete and structural steel. The life of the mine is a key element in the design of any crushing plant. Short-term mine lives (three to eight years) require a very careful approach to design, layout and construction.

A man-elevator is always useful in large crushing and screening plants, and is a necessity in very large capacity plants. Service air and water stations should be located throughout the plant. Include the hoses and nozzles at predetermined wash-down stations.

For three-stage crushing, the preliminary stage is frequently a duplication of the first step of the two-stage arrangement shown in Fig. 1, but it is not uncommon for the first machine to be placed near the scene of mining operations if the mine is situated at a considerable distance from the flotation plant.