Product Working Principle
Structure: The drum dryer consists of the following components: 1. Drum body; 2. Front roller ring; 3. Rear roller ring; 4. Gear; 5. Baffle roller; 6. Drag roller; 7. Small gear; 8. Discharge section; 9. Vibrating plate; 10. Reducer; 11. Motor; 12. Hot air channel; 13. Feed chute; 14. Furnace body, etc. Additionally, gas generators, combustion chambers, or matching hoists, belt conveyors, feeders, cyclone dust collectors, and induced draft fans can be designed 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 the feeding pipeline by the hopper feeder. The slope of the feeding pipeline 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 drum slightly inclined from the horizontal line. Material is added from the higher end, while the heat carrier enters from the lower end, contacting the material in a countercurrent manner, or sometimes both the heat carrier and the 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 from the outlet end via a belt conveyor or a spiral conveyor. Scrapers are mounted on the inner wall of the drum, which function to lift and sprinkle the material, increasing the contact surface area with the airflow to enhance the drying rate 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 within it. To further reduce the dust content in the exhaust gas, it should pass through a bag filter or a wet scrubber before being emitted.
Product Performance Features
High production capacity with continuous operation capability; simple structure with minimal breakdowns, easy operation, and low maintenance costs; wide application for drying powdery, granular, strip, and block materials; high operational flexibility allows 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: Corn bran, soybean meal, cassava pulp, waste abrasives, matchsticks, wood chips, distiller's grains, feed, etc.
