Characteristics of river pebble sand making

River pebble sand making is mainly for natural river pebble raw stone, sand and gravel crushing production process formed in 5-30mm crushed stone. Dahongli Machinery provides customers with high-quality and efficient sand making machines to meet the demand for high-grade concrete pouring for fine machine-made sand. The river pebble sand making production line is suitable for all kinds of hard river pebble sand making.

River pebble sand making process

For full sand making of large-size natural river pebbles, the process flow of jaw crusher + cone crusher + high-efficiency sand making machine + high-pressure roller mill (roller mill) + circular vibrating screen is usually adopted. Auxiliary equipment can be added according to the specific needs of customers: sand and gravel powder separator, wet mixer, dust removal equipment, feeding system, dust collection device, etc.

River pebble sand making production line

With the continuous depletion of natural river sand, the market demand for high-quality machine-made sand is increasing. High-quality machine-made sand has become a new development direction and profit growth point for various sand and gravel yards, creating more value for customers while continuously improving the quality of sand and gravel. 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.

For full sand making of large-size natural river pebbles, the process of jaw crusher + cone crusher + high-efficiency sand making machine + high-pressure roller mill (roller mill) + circular vibrating screen is usually used. Auxiliary equipment can be added according to specific customer needs: sand and gravel 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.

The specific process can also be configured differently according to different sites and different stones.