At present, the sand making machines on the market are basically of impact type, counterattack type, fine crushing type and counter-roll type, but different types of sand making machines are also very different in production methods and usage. Among them, the hardness of the material plays a very important role. Therefore, in the selection and use of the sand making machine, the hardness and size of the material itself should be used as the standard, and it should be based on economy and efficiency.
For example, at present, the original Shihe pebble and cobble are preferred for sand making. More than 98% of them are hard Carboniferous cores, and a very small amount of quartz stone. Most of them have a compressive strength of more than 150 MPa. Therefore, in terms of crushing and sand making technology, in order to reduce the difficulty and cost of crushing, it is necessary to crush them in two or more stages before sand making. This method not only has good molding effect, but also greatly reduces the service life of vulnerable parts.
In addition, for different grades of stones, the selected models can also be better selected according to the strength and size of stones. For example, calcium carbonate, the main component of limestone with low strength, can be directly processed into stones and burned into quicklime. Its Mohs hardness is 3 and its property is brittle. Therefore, any kind of sand making equipment can be selected for crushing and sand making operation, and the service time and crushing effect of vulnerable parts can reach a better material level.
SMMVIK Machinery is an old brand enterprise specializing in the production of sand making equipment. It has many years of experience and perfect after-sales service. It has won the recognition of the domestic industry with high quality. SMMVIK Machinery has been doing its best to reduce costs and improve quality, allowing customers to obtain greater returns with less investment.
