Continuous bubble‑spray cleaning machine

Working Principle

A high-pressure fan at the bottom of the water tank drives micro-pore aeration tubes to generate numerous fine bubbles. The impact force produced when bubbles rise and burst tumbles materials in water to strip sediment, insect eggs and part of pesticide residues. Materials are conveyed forward by a variable-frequency mesh belt. The lifting discharge section is equipped with high-pressure spray nozzles for secondary rinsing to remove floating dust. Light impurities are discharged through the overflow port, while sediment settles into the bottom cone tank. Water can be recycled and filtered for reuse to achieve water saving and high efficiency.

Equipment Structure

1. Washing Tank Body: Integrally bent and welded structure with a conical sediment collection base and drain valve. 
2. Aeration System: Vortex fan and micro-pore aeration tubes; bubbling intensity is adjustable. 
3. Conveying & Lifting Mesh Belt: SUS304 stainless steel mesh belt with variable frequency speed regulation. Baffles are optional to prevent materials from floating upwards. 
4. High-pressure Spraying System: Spray pipes at the discharge end for clean water rinsing at 0.3~0.5MPa. 
5. Water Circulation Filtration Unit: Multi-layer filter screens and circulating water pump to reduce water consumption. 
6. Electric Control Cabinet: Independent waterproof electric cabinet with frequency converter and overload protection. 
7. Frame: SUS304 square tube frame; mobile casters are optional.

Applicable Materials

Leafy vegetables (spinach, leaf lettuce), fruits and peppers (chili, apple, tomato), root vegetables (potato, carrot), mushrooms, Chinese medicinal herbs and seafood. It can also be used for pre-washing of packaged products. Suitable for soft and fragile materials. Gentle cleaning achieves a low breakage rate.

Key Features

Continuous automatic operation replaces manual labor with large throughput. Mesh belt speed is variable from 0.5~6 m/min via frequency conversion. 
Pure physical cleaning without hard friction, minimizing damage to fruit and vegetable skins. 
Water circulation filtration saves more than 70% of water consumption. Dual sewage discharge via overflow and bottom drain. 
The whole machine is demountable. The tank and mesh belt are easy to rinse, free of sanitary dead zones. 
Optional add-ons: surfing device, ozone sterilization, heating module, brush impurity removal, inner tank lifting mechanism.

Matching Description

After washing, materials can be directly fed into the turnover air dryer for surface water removal, forming a combined washing and air-drying production line.