Sand broken from rocks by special sand-making equipment is called machine-made sand. Now the production technology of machine-made sand is mature and has been widely used in the construction industry. With the development of national infrastructure, the demand for concrete sand increases sharply, and the reserves of natural sand are difficult to meet the market demand for sand and gravel aggregate. The appearance of machine-made sand has effectively alleviated the dilemma of sand and gravel shortage.

1. The production effect of machine-made sand is 1. Machine-made sand meets the requirements of construction engineering.

Machine-made sand has more advantages than natural sand. From the perspective of raw materials, there are many mineral components, high surface energy, good hydrophilicity and complete layers. Adopt high-tech sand-making equipment to ensure the stability and controllability of machine-made sand quality.

2. Machine-made sand meets the requirements of environmental protection policy.

Using machine-made sand not only saves energy and environmental protection, but also saves raw material costs for customers. Compared with natural sand, the cost of machine-made sand is reduced by 50%, and the performance of ready-mixed mortar produced with high-quality machine-made sand is better than natural sand. More importantly, the comprehensive cost of preparing ready-mixed mortar can be reduced by 30% to 50%.

Second, the production process of machine-made sand 1, the initial stone crushing stage

A vibrating feeder and a jaw crusher are arranged in the primary crushing stage, materials are conveyed to the jaw crusher by the vibrating feeder for primary crushing, and the crushed materials are sent to the secondary crushing;

2. Fine crushing stage in stone

The cone crusher is arranged in the middle and fine crushing stage. The coarse materials crushed by the jaw crusher are sent to the cone crusher for secondary crushing;

3. Stone sand making stage

Sand maker stage is equipped with sand maker and vibrating screen. The medium and fine materials crushed in the second stage enter the sand making machine for final crushing and forming, and then are screened by vibrating screen. Those that meet the granularity requirements are washed in the sand washing stage, and those that do not meet the requirements are returned to the sand making machine for re-crushing;

4, stone sand washing stage

Sand washing stage is equipped with sand washing machine equipment. The molded machine-made sand is crushed by a sand making machine, cleaned by a sand washing machine, and then dried.