Henan Hongxing: a must know basic content of rotary dryer

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Basic contents of purchasing rotary dryer

Purchase of drying equipment

In the selection drying equipment To understand Rotary dryer Characteristics of.

1. The adaptability of rotary dryer to drying materials, such as whether it can reach the required drying degree of materials and the uniformity of drying products.

 Rotary dryer

2. Whether the rotary dryer is harmful to the product. Because some products require to keep crystal shape and color; some products require no deformation or cracking during drying.

3. The thermal efficiency of rotary drying device (generally speaking, if the heat energy of drying device is well utilized, the thermal efficiency is high; on the contrary, the thermal efficiency is low), which is the main economic index of drying.

Application of rotary dryer

Rotary dryer is a kind of industrial drying equipment which processes a large amount of materials. It can be used to dry granular materials, sticky paste materials and materials with high water content Drying quartz sand Gypsum, clay, sand, mineral powder, slime, etc. The machine is reliable in operation, flexible in operation, strong in adaptability and large in handling capacity. It is widely used in metallurgy, building materials, light industry, chemical industry, coal and mining industries.

Structure of rotary dryer

In addition, according to the user's demand, it is composed of feeder, conveyor, conveyor, conveyor, roller, feeder, etc Dust remover, induced draft fan, etc.

Working principle of rotary dryer

Wet materials are made up of Belt conveyor or Bucket elevator It is sent to the hopper, and the feeder through the hopper enters the feeding end through the feeding pipe. The slope of the feeding pipe should be greater than the natural inclination of the material, so that the material can flow into the dryer smoothly. The rotary dryer cylinder is a rotating cylinder slightly inclined to the horizontal line. When the material is added from the higher end, the heat carrier enters from the low end and contacts with the material countercurrent, and some heat carrier and material flow into the cylinder together. With the rotation of the cylinder, the material moves to the lower end under the action of gravity. When the wet material moves forward in the cylinder, the heat is directly or indirectly obtained from the heat carrier, so that the wet material can be dried, and then sent out by belt conveyor or screw conveyor at the discharge end. The inner wall of the cylinder is equipped with a copying board. Its function is to copy and scatter the materials, so as to increase the contact surface between the material and the air flow, so as to improve the drying rate and promote the material to move forward. Heat carrier is generally divided into hot air, flue gas and so on. After the heat carrier passes through the rotary drum dryer, the cyclone dust collector is generally needed to capture the materials in the gas. If it is necessary to further reduce the dust content of tail gas, it should be discharged after passing through bag filter or wet dust collector.

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