The optimization program of activated clay dryer
Efficient rotary drum dryer is a drying equipment with a large amount; it is widely used in metallurgy, building materials, chemical and other industries. Applied activated clay dryer is based on the specific characteristics of the activated clay, analyses of the structure of the dryer of activated clay affect yield, quality and design. The influence of the drying effect is the entire drying supporting system consolidated balance problems, namely, the balance among wind, fire, materials. The fundamental conditions of high yield and quality of the dryer is the balance among the "wind" "fire" and "material". Direct heated dryer need to do the following changes:
First, ensure that the residence time of the material in the dryer. How to improve the residence time of the material fill rate and extend the material in the cylinder body? There are three main points:
1) Increasing the length of cylinder to reach the length to diameter ratio is 12 – 13;
2) Reduce installation slope, leveling from 6% to 2 – 4%;
3) Reduce speed, generally limited to 2-6 per minute turn;
Second, according to the kiln needs on the particle size of the material to add chain or short steel pipe so that play the role of transforming heat, crushing and airflow resistance; this not only enhances the heat transfer resistance and effectively prevent plate bonding, and enhance the function of the broken material, and difficult to form so that the larger pellets.
Third, most of the equipment manufacturers use rubber plate, it has short sealing time, and very easy to burn, at the same time of feeding materials, a lot of leakage into the cold air, enhancing the fan load and decreasing thermal efficiency. To this end, my company adopts rigid labyrinth, completely solving the problems of little sealing effect, easy-to-burn and others.
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