Drum dryer

Product introduction

Drum dryer is widely used in building materials, metallurgy, mineral processing, chemical industry, cement and other industries, mainly used for slag, limestone, clay, river sand, quartz sand, water slag and other wet and heavy materials. Slag drying production line is mainly composed of rotary cylinder, induced draft equipment, high-speed dispersing equipment, lifting plate, self-cleaning device, transmission device, conveying equipment, hot air equipment, reducer, supporting device and sealing device and other components. The whole set of drying equipment is reasonably designed, well-made, with stable performance, process, high output, low energy consumption, small footprint, high degree of mechanization and other advantages.

Working Principle

The dry wet material is sent to the hopper by belt conveyor or bucket elevator, and then it enters into the feeding end through the feeding pipe by the feeding machine of the hopper. The inclination of the feeding pipe should be greater than the natural inclination of the material, so that the material flows into the dryer smoothly. The dryer cylinder is a rotating cylinder slightly inclined to the horizontal line. The material is added from the higher end, and the heat carrier enters from the lower end, and the material becomes countercurrent contact, and there is also the heat carrier and the material flow into the cylinder together. With the rotation of the cylinder materials run by gravity to the bottom end. Wet materials in the cylinder moving forward in the process, directly or indirectly the heat carrier to the heat, so that the wet materials to dry, and then in the discharge end by the belt or screw conveyor sent out.

In the cylinder dryer cylinder wall is equipped with a copy plate, its role is to copy the material up and down, so that the contact surface of the material and the airflow to increase, in order to improve the drying rate and promote the material forward. The heat carrier is generally divided into hot air, flue gas and so on. After the heat carrier through the dryer, generally need the cyclone dust collector will gas with material capture down. If you need to further reduce the dust content of the exhaust gas, it should also pass through the bag filter or wet dust collector before discharge.

Scope of application

Drum dryer is a kind of dryer which handles a large amount of materials. It is widely used in metallurgy, building materials, foodstuff, light industry, chemical industry, coal, medicine and mining industry due to its reliable operation, flexible operation, strong adaptability and large handling capacity. The rotary drum dryer is generally adapted to granular materials, but also can be used for part of the method of mixing materials to dry viscous paste materials or materials with high moisture content. His advantages are large production capacity, wide range of application, small flow resistance, operation allows a wide range of fluctuations, easy to operate and so on. Slag dryer, drum dryer is often used to dry sand, mineral powder, coal slurry, chicken manure, cow dung and so on.

Product features

1、Drum dryer has strong overload resistance, large handling capacity, low fuel consumption and low drying cost;

2、Drum dryer adopts downstream drying mode, hot air and wet material enter into the dryer from the same side, it can use high temperature air to get high evaporation intensity, low dryer outlet temperature, high thermal efficiency;

3、Drum dryer can change the operating parameters according to different material properties, so that the material in the dryer cylinder can form a stable full-breakage material curtain, quality and heat exchange is more adequate;

4、Drum dryer adopts new type feeding and discharging device, which eliminates the phenomena of vertical dryer feeding blockage, discontinuity, unevenness and material return, and reduces the load of dust removal system;

5、Drum dryer realizes “zero horizontal thrust”, which greatly reduces the wear and tear of the blocking wheel, and the cylinder runs smoothly and reliably;

6、Drum dryer adopts “centering type pallet device”, so that the pallet and the rollers are always in linear contact, thus greatly reducing the wear and power loss;

7、Drum dryer can control the product moisture according to the user's requirements.