The crushed sand and gravel aggregates on site for new sand and gravel projects contain 20-30%of stone powder below 0.075/0.16mm,which affects the strength and quality of artificial made sand.Due to environmental protection requirements,many sites have banned the use of water washing methods for de-pulverization.At the same time,washing sand with water also cause losses large amount of stone powder,which cannot be recycled and reused.This resulting in a waste of stone powder resources.Based on this situation,many manufacturers in the sand and gravel industry have adopted air separation method to remove excess stone powder.
Our company has developed a large-capacity YDZ type special powder separator for artificial sand to cater various characteristic requirements of artificial sand and concrete.The product is widely used in sand and gravel plants,construction sites,hydropower stations and concrete water dam civil engineering,electric poles and large prefabricated pipes,casting mesh sand,oil well backfill pressure sand,glass quartz sand and other production units.

RDZ series high efficiency rotor separator is the latest powder selection equipment developed by our company combining with advanced powder selection technology. It is proven use, the powder selection efficiency is up to 85-90%, and the fineness adjustment is convenient and flexible, and the performance is stable and reliable.

Technical performance and characteristics

1.The particle size distribution of the finished product is concentrated,the particle gradation is more reasonable,and the quality of the product is improved obviously.
2,Easy to operate and adjust fineness.
3.Energy Saving.The unit power consumption of the system is about 30%lower than that of the conventional circulation pulverized coal.
4.The open flow mill can increase production by 60-80%,and the powder selection efficiency can reach 80-85%5.Anti dew point effect is reliable,can adapt to all kinds of climate environment.
6.Adopting dustproof shock absorber,equipped with shock absorbing frame,and can be directly supported by steel frame.It is especially convenient to install.
7.The system has low investment and is convenient for operation and maintenance.

Production Capacity at finness(75μm) sand