Friday, May 10, 2019

Small industrial dryer equipment

Scope of industrial dryers: Rotary dryers are widely used in food, feed, chemical, pharmaceutical, mining, and other industries. The working process of the equipment is as follows: after the dehydrated wet material is added to the dryer, the material is uniformly dispersed in the dryer and fully contacted with the hot air in the dryer, and the heat transfer and mass transfer are accelerated.
In the drying process, the material is discharged under the action of the inclined plate and the hot temper, and the star discharge valve is discharged to the other part of the dryer. The machine is suitable for drying various types of slag materials with water content less than 85%, such as beer waste, bean dregs, sprayed corn husk, coal slime, pomace, etc., which is good for opening up feed resources, reducing feeding cost and reducing environmental pollution. effect.

The heat source of the industrial dryer comes from the combustion device, and the dryer adopts a downstream heating method. Therefore, the material to be dried is slipped from the feed box and the feed into the cylinder, that is, pushed back by the spiral copy board. As the dryer is placed obliquely, the material flows to the rear end under the action of gravity and rotation. On the other hand, the material is repeatedly picked up by the copying board, and is taken to the upper end and then continuously sown down, so that the material forms a uniform curtain in the cylinder. The curtain is fully exchanged with the hot air flow in the cylinder. As the material is repeatedly spread, the moisture contained is gradually dried, thereby achieving the purpose of drying.
1. The same shape of the lifting plate is staggered and installed; secondly, the combined type of lifting plate is adapted to promote the drying material to form a complete curtain on the drying simplified cross section under the action of different orientations and different lifting plates, thereby improving Heat transfer effect, reducing heat loss.
2. Add a high-efficiency crusher to further break the drying material, and promote the specific surface area of the dryer to increase by 2-3 times. Therefore, in the case of the same thermal energy, the thermal efficiency is increased by 2-3 times due to the increase in the area of heat exchange between the material and the hot air.
3. Change to a speed control motor. The operator can freely adjust the speed of the dryer according to the initial moisture level of the dryer in the speed range of 2~8r/min. The final moisture of the drying material meets the quality requirements and saves energy.
4, the old-fashioned dryer roller directly contacts the outside air, so that a lot of heat is dissipated. The dryer manufacturer adopts the insulation method of wrapping the cylinder with asbestos, so as to avoid unnecessary waste of heat. The practice has proved that this measure can save 15% of thermal energy.

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