In recent years, with the limited mining of natural sand resources and the continuous strengthening of environmental protection, the production of machine-made sand is gradually replacing natural sand and becoming a new supply in the sand and gravel industry due to its stable supply and abundant raw materials. At the same time, the quality of machine-made sand is gradually being paid attention to. It is an indisputable fact that the downstream has higher and higher requirements for the quality of machine-made sand. It is imperative to have a good market and improve the quality of sand and gravel. Let's take a look at the factors that affect the quality of machine-made sand.

Choice of raw material

First of all, machine-made sand is mostly used in engineering fields such as construction, roads, water conservancy and hydropower, so its compressive strength, wear resistance, weathering degree, corrosion resistance degree, whether it is green and non-toxic and other factors need to be considered. However, there are many rocks suitable for sand making, such as granite, basalt, bluestone, river pebbles, limestone, etc. are good raw materials for machine-made sand. The second is the cleanliness of the raw material. In the selection of sandfield mines, survey work should be done well, and mines with thin covering soil layer, less mud in the interlayer, high strength of parent rock and good rock integrity should be selected. The impurities and sediment mixed in will be relatively less, and it is easier to control the mud content of the machine-made sand and ensure the quality of the machine-made sand.

Selection of sand making equipment

As the core sand making equipment, the choice of sand making machine is particularly important. At present, the impact sand making machine VSI sand making machine is mainly used in the market. "Stone hitting stone" and "Stone hitting iron" are the main crushing principles. "Stone hitting stone". It is mainly used for shaping(complete center feeding). During the crushing process, the material ejected from the throwing wheel will impact the material lining without direct contact with the metal components of the equipment, which reduces the loss of the equipment and the shape of the discharged material is good. But may contain slightly more powder. "Stone hitting Iron": It is mainly used for sand making, the center feed is accompanied by the waterfall feed. During the crushing process, the material directly collides with the impact block, and the crushing efficiency is high, but the wear cost of the equipment is high, and the grain shape of crushed material is slightly worse.

The two crushing methods have their own advantages and disadvantages, so some friends may ask that is there a sand making machine that combines the advantages and abandons the disadvantages?

VSI sand making machine is a sand making machine with dual functions of sand making and shaping. The shaping effect meets the standards of construction sand. There are various configurations that you can choose according to your needs. For more equipment information, please click on the online consultation for more information.

The rationality of sand production line

The production of machine-made sand does not rely on only one equipment, but requires a sand-making production line. Usually, the configuration of a sand-making production line includes vibrating feeder, jaw crusher, impact crusher/cone crusher, sand making machine, sand washing machine, vibrating screen, conveyor belt, etc. The above equipment is not a fixed combination. Factors such as output requirements, material properties, and input and output requirements need to be considered in order to configure a reasonable, high-yield and stable sand production.