Troubles and solutions to rotary dryers

Date:05/15/2012 11:55:04

Rotary dryer generally suitable for drying granular materials, also be used for drying the sticky paste materials and high water content materials. The rotary dryer have many advantages like large quantity of production, widely application, small flow resistance, easy operating, etc. Rotary dryer is mainly used in metallurgy, building materials, food, light industry, chemical industry, coal, medicine and mining industries to dry a certain humidity or granularity materials. Rotary dryer can dry a variety of materials. As reliable operation, convenient operation, strong adaptability, large capacity, it is widely used.

Trouble 1: The materials cannot be dried by one time

Reasons:

1. The rotary dryer is too small

2. Wind net pressure, flow rate calculation is wrong

3. Improper use of the rotary dryer

Solutions:

1. Increase the drying temperature, but this method is likely to cause fire inside the rotary dryer, the best way is to replace or modify the drying equipment

2. Require manufacturers to recalculate the pressure, flow and then design changes based on the actual situation of the program provided

3. Learn the correct use as the dryer manual of Hongxing machine

Trouble 2: Raw fire within the dryer

Reason:

1. Improper use of drying equipment

2. Drying equipment is too small to achieve the heating effect. Increase the drying temperature by force will cause fire.

3. The drying equipment design principles are in question;

4. Not take smoking materials caused the fire inside the dryer.

Solutions:

1. According to Hongxing dryer manual to learn the correct use;

2. Replacement or modified drying equipment;

3. Require manufacturers to replace or modify the drying equipment;

4. Check the drying equipment is installed correctly, whether the leak or increase pressure

Trouble 3: Wet and dry materials are uneven. The bars in front of the system cannot work

Reasons:

1. Improper use of drying equipment

2. The raw material into a group (such as the northern winter thawed into a group of raw materials).

Solutions:

1. According to Hongxing machine dryer manual to learn the correct use;

2. Break the group materials before drying

Trouble 4: Drying equipment waste fuel

Reasons:

1. The insulation of the drying equipment is poor

2. The drying equipment design principles are in question;

3. Furnace design is in problem.

Solutions:

1. Wrap a layer of insulating material, to improve the working conditions of drying equipment;

2. Ask for the fire drawings from Hongxing machine.

The new type of rotary dryer made form Henan Hongxing Machinery Co., Ltd improve these shortcomings, this dryer have the superiority of large production capacity, widely application, easy operation and so on.