Industrial Liquid Spray Painting Line for Transformer Tanks

Product Introduction

The Industrial Liquid Spray Painting Line is a turnkey, integrated surface coating solution designed specifically for heavy steel fabrications, transformer tanks, electrical enclosures, and large machinery. Encompassing manual/automatic shot blasting, dry-type or water-wash paint booths, high-efficiency hot air circulation curing ovens, and advanced RCO catalytic combustion VOC treatment systems, this comprehensive production line ensures flawless finish quality, superior anti-corrosion protection, and strict environmental compliance.

Key Advantages & Engineering Highlights

• Turnkey Single-Source Solution: Full-process execution from engineering design, manufacturing, installation, to commissioning, backed by compliance with over 20 national and international industrial standards.
• Eco-Friendly Dry & Water-Wash Booths: Configured with labyrinth paper box filters (achieving 98% paint mist capture efficiency with zero wastewater) or high-volume stainless steel water-wash systems for high-throughput operations.
• Precise Thermal Curing Ovens: Available in hot-response convection or infrared radiation configurations (80–120°C adjustable), featuring 100mm rock wool insulation and Italian Riello burners for rapid and uniform temperature distribution.
• High-Efficiency VOC Abatement: Integrated RCO (Rotary Catalytic Oxidation) systems featuring activated carbon concentration and noble metal Pt/Pd catalysts, achieving a purification efficiency of ≥95% to meet stringent environmental standards.
• Intelligent Central Control: Powered by Siemens PLCs and HMI touchscreens with multi-point interlocking safety, automatic over-temperature alarms, and fault self-diagnosis.

Core Equipment Modules

• Shot Blast Room: Pressure-tank abrasive blasting system with 50mm rubber lining and internal illumination, achieving Sa2.5–Sa3 surface cleanliness to maximize paint adhesion.
• Dry-Type / Water-Wash Paint Booth: Engineered with optimized downdraft airflow (0.4 m/s) and labyrinth filters or stainless steel water scrubbers to maintain a clean, safe working environment.
• Paint Curing & Drying Oven: Convection hot-flow or infrared radiation ovens designed with PID temperature control (±5°C precision) and reliable safety interlocks.
• RCO VOC Treatment System: Combines honeycomb activated carbon adsorption with a catalytic combustion bed, handling up to 240,000 m³/h with heat self-balancing.
• Heavy-Duty Conveyor System: Floor rail trolleys or inverted overhead suspension chains (QXG-300) with variable speed control (0.5–5 m/min).

Technical Specifications & Typical Configurations

FAQ

1. What size and weight of transformer tanks can this painting line handle?

The standard heavy-duty configuration accommodates workpieces up to L6000 × W700 × H700 mm and 1,000 kg per piece. However, booth dimensions, oven lengths, and conveyor load ratings are fully customizable to your exact factory layout and workpiece specifications.

2. How does the dry-type paint booth capture overspray without water?

The dry booth utilizes high-efficiency labyrinth paper box filters that trap paint particles effectively with a 98% capture rate, eliminating wastewater discharge entirely and significantly lowering maintenance and environmental treatment costs.

3. What heating options are available for the paint curing ovens?

We offer both hot air circulation convection ovens and high-efficiency infrared radiation heating. Standard units utilize Italian Riello natural gas burners, with electric heating options available upon request.

4. How does the RCO system ensure environmental emission compliance?

The RCO system combines multi-box activated carbon concentration with a 10,000 m³/h catalytic combustion bed using noble metal Pt/Pd catalysts. It achieves an organic waste gas purification efficiency of over 95%, meeting strict local and national emission standards.

5. What are the utility requirements to operate the complete painting line?

Operating requirements depend on the chosen configuration. Typically, the system requires a 380V 3-phase power supply (ranging from 760 kW to 1,741 kW max load depending on scale), compressed air (0.5–0.7 MPa), natural gas for heating, and industrial water where water-wash booths are selected.