In order to low the cost, we also need to care about the leakage problem in rotary dryer working process. To avoid the leakage in the drying system, the series connection use of the pressure fan and draught fan is adopted. After reasonable adjustment, the sand dryer system will be in aero-pressure condition operation which can avoid the decrease of the rotary dryer heat efficiency caused by the drying medium leakage of the convection current or the in leakage of the ambient air.

The material can not make “alternating motion” in the rotary drum dryer, and so the material in the sand dryer machine will be taken out by wind which leads to the low material storage quantity in the drum dryer, thus the contact area between the material and the dynamic and static hot air decreases.For the liquid material (such as the solution, suspension, and the emulsion), process before drying can help save energy.

That is because in the convection type drum dryer, the material is heated by the hot air. The preheating is taking advantage of the latent heat or waste heat of the steam. For the spray drying, the preheating of the feed liquid is beneficial to the pulverization.

The wind speed is too low which lead to contact dynamics loose between the material and the dynamic & static hot wind and the rotary drum dryer efficiency is much lower.Choose the right sand drying machine can ensure the drying production.

So choose the correct drying equipment is the primary consideration issue. From the materials to analysis this issue, we conclude the following terms to help you choose the perfect suitable drying machine.

rotary drying machine: http://www.china-ftm.com/pros/drum_dryer.html