subject: Recognization Not Before You Start Stone Crushing Line [print this page] The technical process of the stone production line is to crush and screen the natural stone into the required particle size. In the stone production line, we can use the crushing machine to apply the external force to the rocks and make them crushed. In this way, the large blocks are changed into small particles by the crushing equipment.
When we design the process of the crushing operations, we should first consider the crushing ratio of the crushing equipment. The crushing ratio can reflect the narrowing degree of the stone after crushing operation. Limited by the crushing ratio, it is very use one machine or once crushing to process the large-block rocks into the particles which can meet the requirements. Generally, the crushing process should be completed piecemeal. In this way, the crushing process is called the piecemeal crushing.
According to the granularity characteristics of the raw materials into the crusher and the discharging products and the crushing ration of the crusher, the crushing operation can be divided into coarse crushing, medium crushing and fine crushing. After each crushing process, the granularity of the stone will be reduced. The granularity features of each crushing process are also limited by the mining conditions of the rock.
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In large open pit or large quarry, the particle size of the mining materials is large and the diameter of the largest block of the particle can be up to 1.2m to 1.5m. In this case, the range of the feed size of each crushing section of the materials is as the following. In the coarse crushing, the feed size is 1.5m and the discharging granularity is 0.3m. In medium crushing operation, the feed size is 300mm and the discharging size is 75mm. In the fine crushing operation, the feed particle size is 75mm and the discharging granularity is 10mm. In the project, the screening machinery can be used together with the crushing machinery. In addition, the screening machinery can be independently used in the screening operation of the natural sand.
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