Granite sand making characteristics

With the increasing depletion of natural river sand, machine-made sand has become the preferred raw material for all kinds of building concrete. Granite has the characteristics of hard texture and rich raw material reserves, and is a high-quality building raw material. It is widely used in railway construction, highways, airport runways, water conservancy and hydropower construction, and urban construction materials.

Granite sand making process

Granite sand making complete production process can be used as a reference for various ore sand making solutions: jaw crusher + cone crusher + high-efficiency impact crusher + roller mill (high-pressure roller mill) + vibrating screen. Auxiliary equipment can be added according to customer specific needs: sand and gravel powder separator, wet mixer, dust removal equipment, feeding system, dust collection device, etc.

Granite sand production line

With the continuous depletion of natural river sand and the requirements for high-grade concrete pouring, the demand for fine machine-made sand is increasing. Fine machine-made sand has become a new development direction and profit growth point for various sand and gravel yards, while continuously improving the quality of sand and gravel, it also creates more value for customers. Based on years of practical experience, Dahongli Machinery has explored a complete set of machine-made sand production process to meet customers' stringent requirements for high-quality machine-made sand.

In the granite sand making process, full sand making and semi-sand making production processes can be used. The specific process can be designed according to customer needs. This article recommends the granite sand production line process mainly for the full sand making process. That is: jaw crusher + cone crusher + high-efficiency impact crusher + high-pressure roller mill (roller mill) + vibrating screen. Auxiliary equipment can be added according to customer specific needs: sand and stone powder separator, wet mixer, dust removal equipment, feeding system, dust collection device, etc.

Process description:

1. The vibrating feeder sends the large-size natural raw stone into the jaw crusher for coarse crushing, and then enters the intermediate silo for stacking;

2. The stacked material is sent to the cone crusher for crushing by the vibrating feeder, and then screened by the vibrating sorting screen;

3-1 The oversized material returns to the cone crusher for re-crushing; after the cycle operation, it enters the high-efficiency sand making machine;

3-2 The material that meets the particle size is sent to the high-efficiency sand making machine for sand making, and then enters the high-pressure roller mill (roller mill) for ultra-fine crushing to obtain fine sand with reasonable fineness modulus and good grading, and then screened by the vibrating sorting screen;

4. The sand and gravel that meet the demand are sent to the sand washing machine for cleaning, and the unsatisfactory materials are returned to the high-pressure roller mill (roller mill) for further crushing;

5. The material after the sand washing machine enters the tailings recovery integrated machine, and the finished sand is transported to the finished product warehouse by the finished product conveyor belt for storage, and the sewage enters the sewage treatment system for recycling.

Process features:

The Dahongli high-efficiency impact crusher + high-pressure roller mill are used together. The particle size of the crushed machine-made sand is reasonably matched, which can meet the strict requirements of high-grade concrete pouring for machine-made sand. The multi-stage sand making design can achieve the effect of semi-sand making and full sand making.