Brief Introduction to Indirect Heat Dryer
Indirect heat dryer is widely used in such industries as building materials, metallurgy, chemistry and cement industry for drying slag limestone, pulverized coal, slag and clay. It has such features as compact structure, simple construction and reasonable layout. It is able to improve the rate of heat exchange of materials and heat energy, thus ensuring the drying effect of materials. The foundation investment is less, which is only one second of the single-cylinder dryer with the same output, thus reducing the one-off investment. Indirect heat dryer has reliable operation, low energy consumption and high thermal efficiency. In addition, it is easy to realize automatic control, thus cutting down the operating personnel and saving labor resources.
Application Range of Indirect Heat Dryer
Indirect heat dryer is mainly used for drying granulous materials within a certain humidy and granularity range such as yellow sand used in dry-mixed mortar industry, various casting sand used in casting industry, blast furnace slag and small-sized clay used in building material and cement industry as well as small-sized materials that do not have chemical changes and that fear no high temperature or smoke used in chemistry. The water content of the dried materials can reach below 1-0.5%.
Features of Indirect Heat Dryer
1. If the initial water content of the materials is 15%, the final water content can be ensured to be below 0.5-1%, making this dryer machine the first choice for various drying projects such as slag powder and dry and wet mortar production line in cement plant.
2. The cylinder has the function of heat preservation, so that the heat efficiency can reach as high as over 70%, thus improving the thermal efficiency by 35%.
3. The fuel can be coal, oil and gas and the machine can be used for drying various lump, granulous and powdery materials smaller than 20mm.
4. The floor space is reduced by about 50% than single-cylinder dryer, civil engineering investment reduced by about 50%, so is the electricity consumption.
5. The final water content of the dried materials can be easily controlled and adjusted according to the specific requirement of the customers.
6. The temperature of the outlet air is low and the service life of dust collector is long.
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