Rotary Drum Dryer

The HZG rotating drum dryer is a cylindrical body that is slightly oblique and can adjust the speed in a certain range. The dryer is evenly distributed and dispersed, and is fully contacting the heat wind (side or countercurrent) in the tube, which accelerates the drying and heat transfer, thereby achieving the purpose of drying. This device can choose various forms of copied boards to adapt to different materials. The structure is simple, reliable, convenient for maintenance, and large production capacity.

The rotating drum dryer is a dryer that treats a large amount of materials. Due to reliable operation, large operating elasticity, strong adaptability, large processing ability, widely used in departments such as metallurgy, building materials, light industry and other departments. In the chemical industry, such as ammonium sulfate, sulfide, Anfu powder, ammonium nitrate, urea, oxalic acid, calcium carbonate, calcium and magnesium phosphate fertilizer, ordinary excess calcium phosphate, calcium more than calcium phosphate, and sodium methamphetamine The dryer (some materials can also be dried with other types of dryers). The rotating drum dryer is generally suitable for granular materials, and it can also be used to use parts to add dry materials to dry and sticky paste materials or materials with higher water content. The moisture content of materials is generally 3 to 25%, up to 50%, and the product's water content can reach 0.5%.

Principles of working principle of rotating drum dryer
The wet material is mixed with a spiral with a feeder and mixed with the rotary drum. Under the action of the copy of the board, the material is raised. After the heating heat, the heat wind enters the kiln and quickly transmits heat transfer with the material. After decreased, the water quickly evaporated the water after absorbing heat. The fine powder in the wet air was recovered by the whirlwind dust removal and was discharged out of the outdoor by the wet fan. The material enters the dryer from the feeding end, and the other end is discharged and working continuously. The entire process includes the preheating process of the material, the evaporation of water, and the heating process of the material.

This system is slightly negative, so the environment is very clean. The transmission speed of the transmission motor can adjust the speed of the drum to effectively control the output and the end water of the product.

Selection of the flow of the turntable dryer and the choice of thermal carrier flow
1. Pairing: The direction of the material movement is the same as the flow of thermal fluid. It is suitable for the following materials:
 (1) When the moisture content is large, the material allows fast drying without cracks and coking.
 (2) After drying, the material cannot resist high temperature, that is, the product will break down and oxidation such as high temperature.
 (3) The drying properties after drying are very small, otherwise the drying materials will be absorbed back from the thermal fluid to reducing the quality of the product.
2. Adverse current: The direction of material movement is opposite to the flow of thermal fluid. It is suitable for the following materials:
 (1) When the water content is high, the material is not allowed to dry quickly, so as not to cause the material cracking;
 (2) The material after drying can resist high temperature and will not decompose, oxidation and other phenomena;
 (3) The drying materials have greater moisture absorption;
 (4) Requires a large drying speed, and at the same time, the product is low.
3. Selection of thermal fluid:
If the dry solid material is not afraid of high temperature, and not the final product, the intermediate process can be allowed to be slightly polluted. The flue gas can be used as a thermal fluid, and the high volume evaporation and thermal efficiency can be obtained. Such as ore, gravel, coal, and calcium phosphate and other materials, the dried dried machine uses flue gas, and its fuel can be coal, oil or natural gas. If the dry material is not allowed to be polluted, the air is used as a thermal fluid. Thermal air is obtained by steam heat exchangers or indirect heating heat furnaces.

The rotating drum dryer is a dryer that treats a large amount of materials. Due to reliable operation, large operating elasticity, strong adaptability, large processing ability, widely used in departments such as metallurgy, building materials, light industry and other departments. It is generally suitable for granular materials, and it can also be used to use parts of dry materials to dry and sticky paste materials or materials with higher water content. The moisture content of materials is generally 3 to 25%, up to 50%, and the product's water content can reach 0.5%.