With the continuous development of economic construction, the demand for the sand, which is the basis material for construction industry, is bigger and bigger. However, the resource for natural sand is limited. Therefore, it is necessary to produce artificial sand, which is processed by the crusher or sand maker. From another perspective, the sand maker has better manipulation and meets the demand of construction better. Based on the different demand of productive technology, the sand maker can produce the aggregate with different shape and different size to meet the daily demand for sand.
At present, the production operation for artificial sand is divided into three parts, primary crushing, secondary crushing and fine crushing. And the fine crushing is the final part of crushing, also the most important part. The shape and particle size of the products are the main process indexes for judging the quality of the products. Different craft standard has different limit for the product particle size. Some only demand that the top particle size can not exceed the limit. However, some demand not only the particle size of the products, but also the shape of the products. Take the concrete aggregates as an example, it demands not only the particle size, but also the shape should be cube with the edges. This kind of aggregates has important significance for the high strength concrete aggregates. The new type of sand maker, also known as the high efficiency tertiary impact crusher, is the core equipment of the whole production line, from which we can find the important position of the sand maker.
Furthermore, the consumption of equipment is also the concerns of sand-manufacturing enterprise. The consumption of sand maker refers to the consumption for electricity, steel, lubricating oil, water, rubber belt and so on, excluding the normal wear of the equipment. The material character and shape is different, the consumption level is different. And the difference is large. From the economy perspective, reducing the idling of equipment is an effective energy-saving measure. At present, with the extension of the scope of information technology application, the technology of sand maker becomes more and more important in improving the crushing efficiency, reducing the wear and reducing the energy intensity.
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