Yellow sand dryer three-drum dryer

Yellow sand dryer three-drum dryer

Yellow sand dryer three-drum dryer is a kind of high-efficiency drying equipment specially used for drying yellow sand and other materials. The following is its introduction and advantages and characteristics:

Product introduction:

• Structural composition:

The three-drum dryer is composed of three concentric cylinders of different diameters nested and combined, and is generally equipped with auxiliary equipment such as feeding device, discharging device, heat source system, transmission device, support device and dust removal system. The cylinder is usually made of wear-resistant and high-temperature resistant steel to ensure the service life and stability of the equipment.

• Working principle:

Wet yellow sand enters the inner cylinder of the dryer from the feeding device. In the inner cylinder, the yellow sand is continuously picked up and scattered by the shovel, and heat exchange is realized in a spiral movement. Downstream drying is carried out to initially remove most of the moisture. Then the yellow sand enters the middle cylinder for countercurrent drying. The material is repeatedly lifted in the middle cylinder, in a two-step forward and one-step backward movement mode, fully absorbing the heat of the inner and middle cylinders, and prolonging the drying time. Finally, the yellow sand falls into the outer cylinder, and moves in a rectangular multi-circuit mode in the outer cylinder. After further drying, it is discharged from the discharging device. During this process, the hot air flow provided by the heat source fully contacts the yellow sand, causing the moisture in the yellow sand to evaporate and achieve the purpose of drying.

Advantages and characteristics:

High efficiency and energy saving:

• High thermal efficiency:

The three-cylinder structure increases the contact area between the material and the hot air flow, making the heat exchange more sufficient and the heat fully utilized. The heat emitted by the inner cylinder can be partially absorbed and utilized by the middle cylinder and the outer cylinder, reducing the heat loss. The thermal efficiency can be increased by more than 30%-40% compared with the single-cylinder dryer, which can effectively reduce energy consumption.

• Strong fuel adaptability:

It can adapt to a variety of fuels, such as coal, natural gas, biomass pellets, etc. Enterprises can choose suitable fuels according to local fuel resources and costs to reduce fuel costs.

Good drying effect:

• Even material drying:

The unique cylinder structure and lifting plate design enable the yellow sand to be evenly dispersed and turned in the dryer, avoiding material accumulation and uneven drying, and ensuring that the moisture content of the yellow sand after drying is uniform and consistent. The moisture content of the dried material can reach 1-0.5% or less.

• High material quality:

Due to the uniform distribution of temperature and heat during the drying process, the yellow sand will not deteriorate or discolor due to local overheating. The quality of the dried yellow sand is high, meeting the quality requirements of the construction, building materials and other industries for yellow sand.

Compact structure:

• Small footprint:

The three-drum dryer has a compact structure and occupies only about half of the single-drum dryer with the same output. It is very suitable for enterprises with limited space and can save a lot of space.

• Easy installation:

The overall structure of the equipment is simple, the installation process is relatively easy, and no complex infrastructure and large-scale lifting equipment are required, which can shorten the installation cycle and reduce the installation cost.

Reliable operation:

• Low equipment wear:

The friction between the yellow sand and the drum and the copying plate during the drying process is relatively small, which reduces the wear of the equipment and extends the service life of the equipment. At the same time, the transmission device of the equipment uses high-quality parts, runs smoothly and has high reliability.

• Simple operation and maintenance:

The degree of automation is high, the operation is simple and convenient, and only a small number of operators are needed to complete the production process. In addition, the maintenance of the equipment is relatively simple, and the daily maintenance cost is low.

• Good environmental performance:

Equipped with advanced dust removal system, it can effectively collect and process the dust and exhaust gas generated during the drying process, reducing pollution to the environment and meeting environmental protection requirements.