Views: 0 Author: Site Editor Publish Time: 2026-06-17 Origin: Site
Industrial finned tube air heater is the core heating component matched with open/closed spray drying tower for chemical, food, pharmacy and additive production. Using saturated steam, hot water or thermal oil as heat medium, this finned radiator continuously heats fresh makeup air and circulating air to required inlet temperature before air enters spray drying chamber. Constant hot air mixes with atomized liquid raw material inside tower to evaporate moisture rapidly and form dry powder products. Customized anti-corrosion & anti-dust fin structure adapts fine powder floating environment inside spray drying workshop, ensures stable air temperature and continuous long-cycle spray drying production.
Working Principle
Hot medium circulates inside finned tubes and releases heat; heat conducts to outer fin surfaces. Fresh air is forced by induced draft fan to flow crosswise over fin bundle and absorb heat to reach set drying temperature. High-temperature dry air enters spray drying tower, contacts atomized feed liquid droplets, quickly vaporizes water content inside raw material, finished dry powder is collected at tower bottom, and damp exhaust gas is discharged after waste heat recovery.
Key Product Advantages
1. Precise Uniform Air Temperature, Stable Powder Quality
Even heat distribution keeps inlet hot air fluctuation within ±1~2℃, avoids local overheating causing powder coking, discoloration or effective ingredient decomposition, improves finished powder yield and qualification rate.
2. Anti-block Fin Design Against Fine Powder
Optimized fin pitch effectively reduces adhesion and accumulation of floating fine powder from spray atomization, lowers regular cleaning frequency and reduces production downtime.
3. High Heat Efficiency & Energy Saving
Extended finned heat exchange area improves heating efficiency, fast air temperature rise, cuts steam consumption and reduces overall operating cost of spray drying production line.
4. Diversified Material Matching for Different Medium
Carbon steel version for neutral food, starch, milk powder spray drying; stainless steel model for pigment, chemical additive, herbal extract drying with corrosive volatile gas.
5. Compact Duct Mount Design
Directly installed inside fresh air pipeline to save workshop floor space, convenient for new spray dryer matching and old drying line energy-saving renovation.
6. Wide Heat Source Compatibility
Works well with steam, hot water, heat pump and industrial waste heat to satisfy different factory energy allocation.
Application Scope
Milk powder, egg powder, food additive spray drying tower heating
Pharmaceutical intermediate, herbal extract closed spray drying system
Dyestuff, inorganic salt, chemical raw material spray drying equipment
Ceramic powder, pesticide raw material atomization drying production line
