Eco-Efficient Series Spray Dryer

1. Intelligent Frequency Conversion Atomization System + Steam Waste Heat Recovery: Reduces overall energy consumption by 32-40% and cuts unit product drying costs by over 25% compared to conventional equipment.
2. Optimized Internal Flow Field Design: Features "cyclone + direct current" composite air path technology that increases heat exchange efficiency, shortens drying time by 18-22%, minimizes powder wall adhesion, and boosts powder recovery rate to over 95%.
3. Low-Noise Operation: Utilizes quiet atomizing motors (≤68dB) with efficient sound insulation covers, significantly reducing workshop noise pollution and creating a more comfortable working environment for operators.
4. Precision Performance: Dual guarantees of precise temperature control (±1℃) and uniform atomization ensure finished product particle size CV value ≤5%, with significantly improved water solubility and flowability for higher quality powder products and enhanced market competitiveness.

Working Principle

Air is filtered and heated to the set temperature, then enters the drying chamber uniformly in a spiral pattern through an air distributor at the top of the drying tower. The liquid feed is pumped to the high-speed centrifugal atomizer at the top of the tower (atomizer wheel speed typically 10,000 to 30,000 rpm). Under centrifugal force, the feed is thrown and atomized into extremely fine droplets (typically 10 to 100 μm in diameter) by the rapidly rotating atomizer wheel. The atomized droplets have an enormous specific surface area and come into contact with the hot air in co-current flow, completing moisture evaporation in a very short time (5 to 30 seconds) and drying into finished powder. The product is collected at the bottom of the drying tower and by a cyclone separator, while dust-laden exhaust air is filtered through a bag filter and discharged by an induced draft fan.

Structural Features

① The high-speed centrifugal atomizer is driven by a high-precision variable-frequency motor with stepless speed adjustment to accommodate different materials and product particle size requirements; atomizer wheels can be made of stainless steel, hard alloy or ceramic for wear and corrosion resistance;

② The air distributor features adjustable guide vanes to control hot air swirl direction and intensity, ensuring thorough contact between hot air and droplets while reducing wall buildup;

③ The drying tower body can be equipped with jacket insulation or heat tracing to prevent wall buildup caused by low wall temperature; the inner wall is mirror-polished with no dead corners for easy cleaning;

④ Optional wall sweeping system (air sweep device) and automatic rapping device further reduce wall buildup and improve product yield;

⑤ The collection system can be configured with cyclone separator + bag filter, or cyclone separator + wet scrubber to meet different environmental requirements;

⑥ Optional CIP (Clean-in-Place) system enables fully automatic cleaning, meeting food and pharmaceutical hygiene standards.