In recent years, domestic legislation has banned the exploitation of river sand. Excessive exploitation of natural sand will have a serious impact on the environment and ecosystem, so sand making has become a big business opportunity.
The centrifugal impact crusher is abbreviated as a sand-making machine. It is a device that uses high-speed moving materials to crush each other and the impact between the materials and the guard plate. Therefore, it can not only crush stones but also shape stones. Our Nile company currently has a variety of sand-making machines, such as PCL sand-making machines, VSL sand-making machines, fine crushers, rod mills, etc.
The working form of the centrifugal impact crusher can be divided into two types of crushing: "stone hitting stone" and "stone hitting iron". "Stone-on-Stone" is suitable for the crushing of abrasive materials with medium hardness and above, such as basalt. During the crushing process, the material injected from the throwing wheel impacts the material lining and does not directly contact the metal components of the equipment, reducing iron consumption and thus reducing maintenance time. The finished product has a good grain shape and a little more powder content under the working condition of "Stone-on-Stone". "Stone-strike iron" is suitable for crushing materials with low abrasiveness below medium-hardness, such as limestone, etc. Under "stone-strike iron" working conditions, the crushing efficiency is higher, and the finished product has a slightly poorer grain shape.
According to the material feeding method, the working form of the centrifugal impact crusher equipment can be divided into complete center feeding and center feeding with waterfall feeding. The working principle of full center feeding, the material falls on the distribution tray through the bulk material cone and is divided into two parts. Part of it enters the high-speed rotating spinner from the middle of the feeder, is quickly accelerated in the spinner, and then is ejected from the spinner's flow channel at high speed, and the other part of the material falls around the feeder is impacted and broken. The crushed materials leave the crushing cavity under the action of gravity and enter the lower casing discharge hopper for discharge. The basic working principle of the full center feeding is the same as that of the center feeding with falling material. The difference is that the bulk material cone is unloaded when the whole center feeds, and all the materials fall directly into the distribution tray from the feed opening and directly enter the spinning wheel through the middle of the distribution tray.
Centrifugal impact crusher machine is an indispensable part of the sand-making industry. Good sand-making machines can not only improve the production efficiency of sand-making but also be more environmentally friendly. Nile Machinery has rich experience and strong technical strength and can provide users with a free consultation, model selection, quotation, design, and production line services. Users who want to know more about mining machinery can consult online customer service for free.
