Application Solutions of HIPOW Industrial Dust Removal Equipment in the Metal Processing Industry

The Use of Fume Purifiers in Robotic Welding Operations

In robotic welding processes within metal processing plants, the use of fume purifiers is crucial for effectively protecting worker health, extending equipment lifespan, and meeting environmental requirements. Below are fume purification solutions and considerations for this scenario:

Complex composition: Contains harmful substances such as metal oxides (e.g., iron, manganese, chromium), ozone, and carbon monoxide.

Fine particles: Typically 0.01–1 micron in diameter (PM0.1–PM1), easily suspended in the air.

High temperature and high concentration: Robotic continuous welding generates large amounts of fumes, requiring efficient and immediate treatment.

(1) Source Capture

Local exhaust system: Install extraction arms or hoods near the robotic welding gun (recommended airflow ≥2000 m³/h) to ensure fumes are captured before dispersion.

Enclosed workstations: Use semi-enclosed or fully enclosed designs for high-pollution stations, combined with negative pressure exhaust.

(2) Purification Equipment Selection

Cartridge dust collectors:

High-efficiency filter media: Use flame-retardant coated filter cartridges (e.g., PTFE coating) with filtration efficiency ≥99.9%, suitable for ultrafine particles.

Automatic cleaning: Pulse-jet systems prevent cartridge clogging, suitable for continuous operation.

Electrostatic precipitators: Suitable for handling high-flow, low-concentration fumes but require regular electrode cleaning.

Hybrid systems: Pre-filtration (metal mesh) + cartridge + activated carbon layer (for gaseous pollutants).

(3) Airflow and Pressure Matching

Calculate total airflow based on the number of welding stations (approximately 1500–3000 m³/h per robot).

Minimize bends in duct design to maintain airflow velocity at 15–20 m/s and prevent dust accumulation.

Flexible extraction arms: Move in sync with the robot’s trajectory or use fixed multi-point extraction.

Interference prevention design: The electrical system of purification equipment must be isolated from robot signals to avoid electromagnetic interference.

Cooling devices: High-temperature fumes should undergo cyclone separation or water cooling before entering filters.

Intelligent monitoring: Install differential pressure sensors to indicate cartridge replacement (maintenance required when differential pressure >1500 Pa).

Fire and explosion prevention:

Install spark traps inside equipment.

For fumes from reactive metals like aluminum and magnesium, use explosion-proof motors and pressure relief vents.

Waste disposal: Collected metal dust should be stored as hazardous waste (e.g., chromium-containing dust falls under HW17 classification).

Component Parameter Requirements Brand Reference

Cartridge Dust Collector Host Airflow 3000 m³/h, power 5.5 kW HIPOW

Fireproof Pre-filter Metal mesh + G4 primary filter cotton HIPOW

High-Temperature Resistant Extraction Arm Φ160 mm, 360° rotation,

temperature resistance 150°C HIPOW

Variable Frequency Control System Automatically adjusts airflow based on welding start/stop HIPOW

Zoned and tiered treatment: Purify high-pollution stations individually and treat low-pollution areas collectively.

Waste heat recovery: Integrate heat exchangers to preheat combustion air using high-temperature exhaust gases.

Shared dust collection systems: Multiple robots share a central dust collection system (peak load calculations required).

Through rational design, fume purification systems can reduce workplace dust concentrations to <1 mg/m³ (complying with OSHA/GBZ 2.1 standards) while decreasing equipment maintenance frequency by over 30%. It is recommended to engage professional environmental companies for airflow calculations and system integration to ensure effectiveness and safety.