Product Description:
(I) Structure:
The drum dryer is composed of the following parts: 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. Distributing plate; 10. Reducer; 11. Motor; 12. Hot air channel; 13. Infeed chute; 14. Furnace body, etc. Additionally, we can design gas generators, combustion chambers, or match with hoists, belt conveyors, feeders, cyclone dust collectors, induced draft fans, etc., according to customer requirements.
(II) Drum Dryer Working Principle:
The wet material to be dried is transported to the hopper via a belt conveyor or a bucket elevator, then it enters the feeding end through the feeding pipe from the hopper's feeding machine. The slope of the feeding 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 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; sometimes, both the heat carrier and the material enter the drum together. 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 the drying rate and promote material movement. Heat carriers typically include hot air, flue gas, etc. After passing through the dryer, it is generally necessary to use a cyclone separator to collect the material carried by the gas. To further reduce the dust content in the exhaust gas, it should pass through a baghouse or a wet scrubber before being released.
Product Performance Features:
High production capacity with continuous operation capabilities; simple structure with minimal failures, easy operation, and low maintenance costs; wide application range 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: Fluorite powder, quartz sand, graphite, 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 anhydride, sodium sulfide, anhydrous calcium sulfate, urea, oxalic acid, potassium dichromate, polyvinyl chloride, phosphorus nitrate fertilizer, calcium magnesium phosphate fertilizer, compound fertilizer.
Other: Corn bran, soybean meal, cassava meal, waste abrasives, matchsticks, wood chips, distiller's grains, feed, etc.
Technical Specifications:
