Shanghai Shipyard Dust Collection System Project Case

A shipyard metal-fabrication workshop in Shanghai required a dust-control system for production activities including cutting, welding and grinding. These processes can generate a mixture of metal particulate and fume, so the project needed more than a standalone filter: capture points, airflow, duct routing, filtration and maintenance all had to work as one system.

This case shows the type of engineering information that matters when designing an industrial dust collection system for a shipyard or heavy fabrication workshop.

Project Background

Shipbuilding and heavy metal fabrication involve multiple dust-generating operations. Unlike a single-machine application, a workshop system may need to serve several sources with different duty cycles and different capture requirements.

The project therefore had to consider:

• metal dust and welding fume generated at production points;
• long industrial operating hours;
• stable extraction as filters load;
• maintenance access for cartridges and dust collection;
• the layout constraints of an active fabrication workshop.

Engineering Priorities

Source Capture

The first objective in any dust-control project is to capture contaminants as close to the source as practical. If dust and fume spread through the workshop before they are captured, a much larger airflow is required and worker exposure becomes harder to control.

Airflow and Duct Resistance

Fan selection must be based on the required airflow at the system’s total static pressure. Duct length, elbows, hoods, dampers and filter resistance all contribute to the final pressure requirement.

Filter Loading and Pulse Cleaning

For continuous industrial use, the collector must maintain workable airflow as dust accumulates on the filter cartridges. Pulse cleaning helps remove the surface dust cake and control differential pressure.

Maintenance Access

A system that performs well but is difficult to service will eventually create operating problems. Cartridge replacement, dust removal, pulse-system inspection and fan maintenance all need practical access.

System Configuration

Based on the workshop conditions, the project used an industrial cartridge dust-collection arrangement designed for continuous metal-fabrication service. The collector was integrated with the extraction network so that contaminated air could be transported from the process area to the filtration equipment.

The main system functions included:

• capture and transport of process dust and fume;
• cartridge filtration;
• pulse-jet filter cleaning;
• dust collection for routine removal;
• fan operation sized for the extraction network.

For an overview of how this type of equipment works, read our industrial cartridge dust collector selection guide.

Commissioning Focus

After installation, a dust-collection system should be checked as a complete network rather than evaluating the collector alone. Typical commissioning checks include:

• airflow at the main extraction points;
• damper and branch balancing;
• fan direction and operating condition;
• filter differential pressure;
• pulse-cleaning operation;
• compressed-air supply to the pulse system;
• air leakage at doors, flanges and duct joints;
• dust discharge and maintenance access.

Operational Result

The completed system provided the workshop with a dedicated extraction and filtration route for metal-fabrication dust and fume. The practical objective was to reduce uncontrolled dust dispersion around the production area and provide a maintainable central collection system for daily operation.

Because dust-control performance depends on the actual process, airflow and operating schedule, project results should be evaluated using site observations, airflow measurements, filter differential pressure and the customer’s maintenance records rather than generic percentage claims.

What Other Shipyards and Fabrication Plants Should Provide

For a comparable project, the engineering team should receive:

• workshop layout or floor plan;
• dust-generating process and material;
• number of extraction points;
• how many points operate simultaneously;
• estimated or required airflow at each point;
• duct-routing constraints;
• daily operating hours;
• available installation area;
• any combustible or hazardous dust information;
• indoor or outdoor installation conditions.

Dust Collection for Heavy Manufacturing

Shipyard dust collection is a system-engineering problem. The collector, fan, duct network and source-capture design must be selected together. Simply installing a larger fan or a larger filter does not guarantee better capture if the network itself is poorly designed.

Explore our industrial dust collection equipment or contact Superman engineering and sales with your workshop layout and process information for a project recommendation.