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Difference between revisions of "Vertical Dryers"
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== | ==Advantages== | ||
* Drying temperatures from –20° to 350°C | * Drying temperatures from –20° to 350°C | ||
* Heat distribution media: steam, thermal oil, water | * Heat distribution media: steam, thermal oil, water | ||
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== | ==Special Pros== | ||
1. | 1.Innovative design: with new-style vertical of drying,the material is free dropping gas material counter current operation,which is integrated gathering heat conduction and thermal radiation into a body .Heat efficiency is up to 93%. The whole process is automatic control, easy operation and maintenance.<br /> | ||
2. | 2.Less investment: application of small area can save 80% of the investment, and it is especially suitable for the old-line transformation. It can make use of abandoned or idle kiln, mill, tower, library and horizontal dryer, etc. further reducing the investment.<br /> | ||
3. | 3.Widely used: drying clay, slag, fly ash, coal, iron, mineral processing, chemical, foundry and other industries of material drying.<br /> | ||
4. | 4.Long life: the internal components is used in all heat-resistant alloy, long life, low failure rate. | ||
== | ==Application== | ||
The key technology of vertical dryer is to control the flow rate and residence time of the material in every area of the dryer, making the hot flue gas fully convected, radiated and heat conducted with the material which thus can be scattered in the dryer as far as possible to enlarge the contact area between the hot smoke and the material. At the same time, material drying parameter optimization microcomputer software technology has been adopted to proceed online detection to the material moisture and gas temperature in the preheating zone, stoving zone and drying zone, and adjust the system parameters on line such as heating ability, lead-wind quantity, secondary hot wind distribution, heat supply capacity, material closure capacity and retention time,etc., realizing dynamic optimization balance of the system and improving the heat utilization rate. | The key technology of vertical dryer is to control the flow rate and residence time of the material in every area of the dryer, making the hot flue gas fully convected, radiated and heat conducted with the material which thus can be scattered in the dryer as far as possible to enlarge the contact area between the hot smoke and the material. At the same time, material drying parameter optimization microcomputer software technology has been adopted to proceed online detection to the material moisture and gas temperature in the preheating zone, stoving zone and drying zone, and adjust the system parameters on line such as heating ability, lead-wind quantity, secondary hot wind distribution, heat supply capacity, material closure capacity and retention time,etc., realizing dynamic optimization balance of the system and improving the heat utilization rate. | ||
== | ==Typical Usages== | ||
* Permanent blending and intensive contact between the product and the heated wall ensure for an above-average heat transfer. | * Permanent blending and intensive contact between the product and the heated wall ensure for an above-average heat transfer. | ||
* Suitably designed agitators make the plant ideal for concentrating liquids and sludge. | * Suitably designed agitators make the plant ideal for concentrating liquids and sludge. | ||
* The agitator can be heated and shaped in such a way that an extremely high evaporation performance can be achieved. | * The agitator can be heated and shaped in such a way that an extremely high evaporation performance can be achieved. | ||
* A lifting column can be used either to move the entire device, to lift the cover with agitator or to lower the mixing container. The lifting column also facilitates filling and emptying in tight spaces. | * A lifting column can be used either to move the entire device, to lift the cover with agitator or to lower the mixing container. The lifting column also facilitates filling and emptying in tight spaces. | ||