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Some problems with agricultural dryers

2019-11-22

In the process of production and sales of agricultural dryers , there are some common problems, such as the problem that the materials are not dried once and the materials in the dryer catch fire.

Do not dry in one go

Reasons: The dryer is too small; the wind network wind pressure and flow calculation are wrong; the dryer is not used properly.

Solution: Increase the temperature of the dryer, but this method simply causes a fire inside the dryer. The best method is to replace or modify the drying equipment from the beginning; require the dryer manufacturer to calculate the wind pressure and flow from the beginning and then supply the design according to the actual situation Change the plan; discuss with the dryer manufacturer to obtain the equipment manual to learn the correct method of use.

Material in the dryer catches fire

Reasons: Improper use of dryer equipment; Forced heating caused by fire due to too small dryer equipment to reach the drying effect; There is a problem with the design principle of the dryer equipment; Failure to suck the material causes a fire inside the dryer.

Solution: Negotiate with the manufacturer to obtain the equipment manual to learn the correct use of the dryer; replace or modify the dryer equipment; ask the manufacturer to replace or modify the dryer equipment; check whether the dryer equipment is correct, leaking or Increase wind pressure.

The heat source of the agricultural dryer comes from the combustion equipment. This dryer adopts the co-current heating method. Therefore, the materials to be dried enter the barrel from the feed box and feed, that is, they are pushed backward by the spiral copy board. Because the dryer is placed obliquely, on the one hand, the material flows to the back end under the effect of gravity and reversal. On the other hand, the material is repeatedly picked up by the copy board, brought to the upper end and continuously lifted down, so that the material forms a uniform The curtain is fully heat-exchanged with the hot air flow in the cylinder, because the material is repeatedly spread, the moisture contained in it is gradually dried, so as to achieve the purpose of drying.

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