1. The investment in the sand dryer equipment of Zhengzhou Feihong Machinery is 1/6 of that of imported foreign products. It is made of alloy steel plates, which are 3 - 4 times more wear - resistant than ordinary steel plates.

2. The initial moisture content of the material is 15%, and the final moisture content is ensured to be below 0.5 - 1%. It is an excellent product for cement plants, slag powder and dry - mixed mortar production lines.

3. The thermal efficiency of the sand dryer is as high as 80% (the thermal efficiency of the traditional single - cylinder dryer is only 35%), increasing the thermal efficiency by 45%.

4. The fuel can be white coal, bituminous coal, coal gangue, oil, or gas. It can dry lump materials, granular materials, and powdery materials below 20 - 40mm.

5. The sand dryer reduces the floor area by about 40% compared with the single - cylinder dryer, and the civil construction investment is reduced by about 50%.

Zhengzhou Feihong Machinery Equipment has rich experience in producing three - return sand dryers, with guaranteed quality, perfect after - sales service, and reasonable prices. It's worth having. The yellow sand dryer of Zhengzhou Feihong has the characteristics of unique design, compact structure, energy - saving, waste utilization, etc. It has a short installation period and quick results, making it an ideal, convenient, and fast - acting equipment.