Gypsum dryer single drum dryer

Structural composition:

• Drum:

It is the core component, usually made of metal material, with good sealing and heat resistance to withstand the high temperature during the drying process. Its diameter and length are determined according to production needs to provide space for the drying of materials.

• Wheel device:

Located at both ends of the cylinder, it is used to support the cylinder and enable it to rotate smoothly. Generally, there are multiple rollers evenly distributed on both sides of the cylinder to ensure the stability of the cylinder rotation.

• Transmission device:

Including motor, reducer, coupling, etc., to provide power for the rotation of the cylinder, so that the cylinder rotates at a suitable speed to ensure that the material can fully roll and move in the cylinder.

• Feeding device:

used to transport the gypsum material to be dried into the cylinder. Common feeding methods include spiral feeding, belt feeding, etc., to ensure that the material can enter the dryer evenly and stably.

• Discharging device:

After the drying is completed, the dried gypsum material is discharged from the cylinder. The discharging device needs to ensure smooth discharging and avoid material blockage.

• Heat source device:

provides the heat required for drying. Common heat sources include natural gas, coal, biomass particles, etc. The hot air flow generated by the heat source enters the cylinder through the pipeline and exchanges heat with the gypsum material.

• Lifting plate:

installed on the inner wall of the cylinder, its shape and angle are designed to continuously pick up and throw down the gypsum material when the cylinder rotates, so that the material forms a uniform material curtain in the cylinder, increasing the contact area between the material and the hot air flow, and improving the drying efficiency.

• Working principle:

The wet gypsum material enters the cylinder of the single-cylinder dryer through the feeding device. As the cylinder rotates, the lifting plate continuously picks up and throws the material, so that the material is fully dispersed in the cylinder to form a uniform material curtain. At the same time, the hot air flow generated by the heat source device enters the cylinder and fully exchanges heat with the material. The hot air flow evaporates the moisture in the material and takes it away, and the wet air is discharged from the dryer through the exhaust device. After a period of drying, the dried gypsum material is discharged from the cylinder through the discharging device, completing the entire drying process.

Advantages and characteristics:

High drying efficiency:

• Large contact area:

The lifting plate design in the cylinder can make the gypsum material fully contact with the hot air flow, increase the area and time of heat exchange, improve the heat transfer efficiency, thereby accelerating the drying speed of the gypsum, and can reduce the moisture in the gypsum to the required level in a shorter time.

• Uniform drying:

The material is constantly picked up and thrown down in the cylinder, so that the material can be evenly heated during the drying process, avoiding local overheating or incomplete drying, and ensuring the drying quality of the gypsum material.

Simple operation and stable operation:

• Simple structure:

The structure of the single-drum dryer is relatively simple, without complex components and transmission mechanisms, and it is relatively convenient to operate and maintain. The equipment has a low failure rate, stable and reliable operation, and can run continuously for a long time to meet the needs of large-scale production.

• Easy to control:

By adjusting parameters such as heat source temperature, cylinder speed, and feed speed, the gypsum drying process can be easily controlled to meet the drying requirements of gypsum materials with different humidity and output. The application of automatic control system further improves the operation convenience and control accuracy of the equipment.

Wide range of applications:

• Material adaptability:

Not only suitable for drying natural gypsum, but also has good drying effects for industrial by-product gypsum such as desulfurized gypsum and phosphogypsum. Whether it is granular, powdery or blocky gypsum materials, they can be effectively dried in a single-drum dryer.

• Wide industry application:

Widely used in gypsum drying operations in building materials, cement production, chemical industry and other industries. In the building materials industry, dried gypsum can be used to make gypsum boards, gypsum blocks, etc.; in cement production, gypsum is used as a cement retarder, and the dried gypsum can better play its role.

Energy saving and environmental protection:

• High thermal energy utilization rate:

The design and insulation measures of the cylinder can reduce heat loss, improve the utilization rate of thermal energy, and reduce energy consumption. At the same time, a reasonable hot air circulation system can make the hot air flow fully circulate in the cylinder, further improving the utilization efficiency of heat.

• Good environmental protection performance:

Equipped with advanced dust removal equipment, it can effectively collect and treat the dust generated during the drying process, reducing the pollution of dust to the environment. At the same time, for some single-drum dryers that use clean energy as a heat source, they can also reduce the emission of pollutants such as carbon dioxide and sulfur dioxide, which meets environmental protection requirements.

Low investment cost:

• Low equipment cost:

Compared with other types of drying equipment, the single-drum dryer has a simple structure and relatively low manufacturing cost. On the premise of meeting the drying requirements, choosing a single-drum dryer can reduce the investment cost of the equipment.

• Small footprint:

The single-drum dryer has a small footprint, which is a great advantage for companies with limited space. It can save the cost of plant construction and equipment installation and improve space utilization.