
Application technology of artificial sand making crushed stone sand making machine
Artificial sand making machines are widely used in construction, infrastructure, and manufacturing industries for producing high-quality sand from crushed stones. The crushed stone sand making machines transform raw stones into fine-grained sand that can be used as a substitute for natural sand in concrete, mortar, and other construction applications. Here's an overview of the application technology of artificial sand making machines:
1. **Feeding**:
- The process begins with feeding raw stones into the machine. The stones are typically feed into a jaw crusher for primary crushing to reduce their size.
- After primary crushing, the stones are conveyed to a vibrating screen to remove any oversized material and to classify the particles into different sizes.
2. **Crushing**:
- The crushed stones are then passed through an impact crusher or a cone crusher for further size reduction. This step is crucial for achieving the desired particle shape and size distribution.
- The impact crusher uses high-speed impact to break the stones, while the cone crusher applies compression to crush the stones.
3. **Sand Making**:
- The crushed stones are then fed into a sand making machine, which is often a vertical shaft impact (VSI) crusher. The VSI crusher uses a rotating impeller to throw the stones against a fixed surface, creating friction and causing the stones to break down into fine sand.
- The impact and friction forces in the VSI crusher help in achieving excellent particle shape and cubic sand, which is essential for high-quality concrete and mortar mixes.
4. **Screening and Washing**:
- The output from the sand making machine is conveyed to a vibrating screen for final size classification. The screen separates the sand into different sizes to meet the required specifications.
- To ensure cleanliness and remove any remaining impurities, the sand may undergo washing. This can be done using a sand washer, which combines water and air to clean the sand and remove dust, silt, and other contaminants.
5. **Drying (Optional)**:
- Depending on the moisture content of the sand, a drying process may be required. This can be done using rotary dryers or other drying equipment to reduce the moisture content to an acceptable level for storage and use.
6. **Storage and Dispatch**:
- The final product, artificial sand, is then stored in silos or stockpiles. From there, it can be dispatched to construction sites or sold in the market.
Throughout the process, it is essential to monitor and control the factors such as feed size, feed rate, rotation speed of the impeller, and the water content of the sand to ensure consistent quality and optimize the production efficiency of the artificial sand making machine.
The application of artificial sand in construction has several advantages over natural sand, including reduced environmental impact, increased productivity, and improved concrete and mortar properties. The crushed stone sand making machines play a vital role in producing high-quality artificial sand to meet the growing demand in the construction industry.