First, the working principle of VSI sand maker VSI sand maker can be divided into "stone-to-stone" and "stone-to-iron" crushing principles according to the feeding mode. The waterfall flow distribution system is adopted for stone breaking, which divides the materials into two paths, one path enters the inner cavity of the impeller rotating at high speed, the other path enters the inner cavity of the equipment, and the last two paths of materials collide strongly in the impeller area, thus forming stone breaking; "Strike while the iron is hot" is to introduce all the materials into the impeller cavity, and then throw them out after being accelerated by the impeller, and collide with the metal impact plate on the inner wall of the equipment to achieve the crushing effect.
Second, the advantages of VSI sand maker 1, the crushing ratio of VSI sand maker equipment can reach more than 50, which is larger than that of traditional sand maker equipment;
2. When the VSI sand maker breaks the material, it will break along the fragile layer of the material. Most of the broken materials are cubic, and the needle-like content is low, which is about 5% lower than that of the ordinary sand maker.
3. VSI sand making machine has selective crushing effect, which is suitable for both soft materials and hard materials. The particle size after crushing is smaller than that of important materials, and the particle size after crushing of materials with small specific gravity is larger;
4. The crushing cavity of VSI sand maker is deep, which can make full use of impact to crush materials, and the produced machine-made sand has uniform particle size and good particle shape.
VSI sand making machine is a commonly used sand making machine in domestic sand and gravel industry, and it is also an advanced technology sand making machine with a wide range of applications. Compared with the same type of sand maker, VSI sand maker produces better sand grain size, higher output and lower use cost, and is a common equipment for producing machine-made sand aggregates.