Table of Contents

• Airflow dryer/multifunctional use
• What are the characteristics of an airflow dryer
• Introduction to the Structure of Airflow Drying Machine
• Diversified specifications of industrial dryers
• Operating characteristics of air flow dryer

What are the characteristics of an airflow dryer

The drying intensity of the airflow dryer is high: due to the high airflow speed, the material is well dispersed in the gas phase, and the entire surface of the material can be used as the effective drying area. Therefore, the limited drying area is greatly increased. At the same time, due to the dispersing and stirring effects during drying, the gasification surface is constantly updated, so the heat transfer process of drying is strong
Short drying time: The contact time between the material and the air is extremely short, and the drying time is generally 0.5-5 seconds. For thermosensitive or low melting point materials, it will not cause overheating or decomposition, which will affect the base quality,
High thermal efficiency: Airflow drying adopts a co flow operation of materials and gases, and the temperature of materials and air can reach the stage state from beginning to end. The drying time is short, so higher drying temperatures can be used,
Wide applicability, high yield, large precipitation amplitude: simple structure, small station area, low investment and maintenance costs

Introduction to the Structure of Airflow Drying Machine

Mainly composed of hot air stove, U-shaped pulse tube, fan, sand clone and other parts, hot air and materials are simultaneously sucked into the pipeline under the action of induced draft fan. Water containing materials are suspended in high-speed hot air flow and pass through drying pipelines. Due to the action of the pulse tube, the airflow rotates, causing the material to continuously roll, increasing heat transfer exchange with the hot air flow, and improving thermal efficiency.
The material is dried within 3-5 seconds and collected by a cyclone separator and bag collector. The recycling efficiency is as high as 98%, and it can continuously dry a large amount of materials.

Diversified specifications of industrial dryers

A drum dryer is a contact type internal heating and conduction type drying machinery.

Box dryer uses hot air to heat and dry materials, which has the advantages of fast drying speed, good effect, and environmental friendliness.

An air flow dryer is a device where raw materials enter the furnace through a pipeline through the feeding port, and are drawn into the sand clone by the fan along with hot air. The dried material is released from the sand clone, and waste heat and water vapor are released from the sand clone.

Operating characteristics of air flow dryer

1. High heat exchange rate, fast drying time, and can achieve instantaneous drying.
2. Dry at low temperature to avoid pre gelatinization.
3. Special cyclone recovery device ensures that dry material loss is minimized,
4. Special cooling system design prevents starch from clumping easily.

Drying machines are widely used in industries such as food, feed, chemical, pharmaceutical, and mining, and drying equipment
During the work process:; After the dehydrated wet material is added to the dryer, it is evenly distributed in the pipeline and flipped by the plate. The material is evenly dispersed in the dryer and fully contacts with hot air, accelerating heat and mass transfer into the drying process. During the drying process, the material is subjected to the action of a tilted plate and a thermal atmosphere. As for the drying machine, a star shaped discharge valve is added to discharge the finished product. The working principle of the airflow dryer is to feed the wet granular material into the hot air flow, which flows in parallel with it to obtain the granular drying product. This has a good effect on opening up feed resources, reducing feeding costs, and reducing environmental pollution.