The raw ore of cobblestones is relatively large. In the crushing production process, large stones cannot be crushed at one time. The large stones need to be crushed in two stages to achieve the required stone and sand particles. In addition, due to the different geographical locations, the hardness of the pebbles may be different, but there will not be much difference. When crushing the pebbles, you can choose the appropriate crushing plan according to the fineness requirements of different fields of use. However, the cobblestone itself has a high hardness, and the abrasion of the crusher and other equipment is relatively serious. Therefore, when selecting the crusher, the jaw crusher + 5X vertical shaft sand making machine with small wear, large capacity and long service life should be used as the processing equipment.

There are three ways to make sand by crushing cobblestones, one is “jaw crusher + cone crusher + impact sand making machine”, and “jaw crusher + impact crusher crushing” Three-stage crushing and selection process of “machine + impact sand making machine”,the other is the second-stage short process crushing and selection process of “jaw crusher + impact sand making machine”, if the cobblestone crushed stone can be used without sand making machine. Among them, the two-stage short process crushing and selection process of “jaw crusher + impact sand maker” simplifies the process of the entire sand production line, changing three stages of crushing into two stages, and eliminating the need for a host device It also reduces the civil construction costs, motor consumption costs, and wearing parts consumption costs caused by the installation of the equipment. In addition, compared with the previous VSI sand making machine, the sand making rate of the 5X sand making machine is as high as 60%, the rotor is almost free of wear, and the original imported runner plate, sand making machine and other wearing parts have a long service life, thus making The operating cost of the entire sand making machine production line is reduced.

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