The sand dryer is the introduction of European technology, which consists of the three different diametersc oncentric cylinders, and it Contacts each other together. In the cylinder with different Angle and distance stripper plate and the guide plate, this structure ensure is drying materials by gravity along the spiral movement direction, and it keep enough retention time and sufficient dispersion in the cylinder dryer., that was drying materials in the cylinder from inside the furnace within and heat flow sufficiently heat exchange.
Working principle of The sand dryer:
Special three tube structure, it formed a oneself insulation system through the inside cylinder and the middle cylinder was surrounded by the outside cylinder, the surface of the inside and middle cylinder dryer release invoved in the outside layer in the cylinder materials heat exchanger, thus the outer tube lie in the heat flow low-temperature terminal. So the cooling area and heat loss of the cylinder is decreased obviously.
The equipment is used for drying yellow sand, slag, clay and other raw materials, widely used in building material, chemical industry, casting and glass industries etc,
It can adapt to the coal, oil, gas and many other fuel.
1.Compared to single cylinder dryer this small sand dryer length shortens 60%, in favour of process arrangement. Reduces workshop covered area, reduced the project investment by 40%. Occupation area: about 20m2.
2. Adopted latest technology, cylinder self insulation, thermal efficiency is as high as 80% (single cylinder dryer is only 35 percent), thermal efficiency than single cylinder drying saves coal 68%, yields 100%.
3. Heat-resisting wear-resisting alloy steel plate, four times than ordinary steel wear-resisting. Long service life and easy maintenance.
4. High thermal efficiency, outside shell temperature below 60 °C (single cylinder dryer outside shell temperature as high as 150°C), output of low temperature, discharging temperature below 60 °C.
5. Output of low temperature, be helpful for dust collector to use a long time, can be directly supporting air tank pulse bag filter.
6. Construction investment reduces 50%, power consumption reduces 60%.
7. Adopts roller rotation, no need reducer.
8. Hot air stove can supporting fluidezed bed, spray stove, hands burned furnace, also used in fuel and gas type, can bake the below 20 mm pieces of materials, aggregates, powder material.
9. After drying the moisture content of materials at 1-0.5% and below, which can meet different industries requirement.