Product Working Principle
The drum-type dryer is composed of the following parts: 1. Cylinder; 2. Front roller ring; 3. Rear roller ring; 4. Gear; 5. Baffle roller; 6. Drag roller; 7. Small gear; 8. Discharge section; 9. Spreading plate; 10. Reducer; 11. Motor; 12. Hot air duct; 13. Feed chute; 14. Furnace body, etc. Additionally, we can design a gas generator furnace, combustion chamber, or match with hoists, belt conveyors, feeders, cyclone dust collectors, and induced draft fans according to customer requirements.
(2) Drum Dryer Working Principle: The wet material to be dried is transported to the hopper by a belt conveyor or a bucket elevator. It is then fed into the charging end through a charging pipe by the hopper's feeding machine. The slope of the charging pipe must be greater than the natural angle of repose of the material to ensure smooth flow into the dryer. The dryer drum is a rotating cylinder slightly inclined from the horizontal line. Material is added from the higher end, while the heat carrier enters from the lower end, coming into counter-current contact with the material. There is also a scenario where the heat carrier and material enter the drum simultaneously. As the drum rotates, the material moves under gravity to the lower end. During its forward movement within the drum, the wet material is directly or indirectly heated by the heat carrier, allowing it to dry. It is then discharged at the outlet end via a belt conveyor or a screw conveyor. Scrapers are mounted on the inner wall of the drum, which function to lift and scatter the material, increasing the contact surface with the airflow to enhance drying speed and promote material movement. Heat carriers typically include hot air, flue gas, etc. After passing through the dryer, the gas is usually captured by a cyclone separator to remove the material carried by the gas. To further reduce the dust content in the exhaust gas, it should pass through a bag filter or a wet scrubber before being released.
Product Performance Features
High production capacity with continuous operation capability; simple structure with minimal breakdowns, easy operation, and low maintenance costs; wide applicability for drying powdery, granular, strip, and block materials; high operational flexibility, allowing for significant fluctuations in product output without compromising quality; easy to clean.
Product Application Range
Minerals: Fluorspar powder, quartz sand, graphite, magnesium salts, garnet, barite, potassium sodium feldspar, mica powder, slag, bentonite, zinc slag, clay, titanium concentrate, coal slime, manganese ore, pyrite, limestone, river sand, anthracite, iron ore concentrate, etc.
Chemical Industry: Sulfuric acid, sodium sulfide, anfufen, urea, oxalic acid, potassium dichromate, phosphorus nitrate fertilizer, calcium magnesium phosphate fertilizer, compound fertilizer.
It includes corn bran, soybean meal, cassava residue, waste abrasive, matchsticks, wood chips, distiller's grains, feed, etc.
