Are Your Workers in Danger because of a Poorly Ventilated Tank Site?

blasting tank dustWorking in confined environments such as tanks calls for good ventilation

An abrasive blasting enclosure without ventilation quickly becomes a dusty, hazardous haze, hindering productivity and safety.

Working in confined environments such as tanks calls for good ventilation. In some instances the coating that is being removed will contain hazardous substances (in the majority of cases this will be lead-based pigments). As these substances are considered toxic, specialised systems will be required. It is essential for the safety and productivity of the team of workers involved to maintain good conditions during the blasting process that allow them to keep blasting and complete the job faster.

There are certainly a lot of good reasons to keep the air moving through the tank.

By having good ventilation for your tank site you will:

  1. Reduce the dust level inside the tank, thus improving the visibility and allowing the blasters to blast without any visual hindrance. Reducing the amount of dust in the tank is a real advantage. It is therefore important to have the duct work from the ventilation system positioned close to where the operators are working. This keeps the work area around them the clearest ensuring maximum visibility.

  2. Look after your blaster's personal safety by quickly drawing any hazardous dust or fumes from the area where the workers are blasting or painting. This is important as many of the old coatings contain lead or other harmful products and most paints release fumes during application which can damage the lungs and be harmful to health.

  3. Reduce clean up time after blasting is finished. By moving the air and dust out of the area it does not settle back down over the newly blasted surface. This helps keep the fresh blast uncontaminated.

tank blasting ventilation optionsAll this means that you finish blasting sooner, you don't contaminate the new surface, you send your workers in to clean up sooner, and consequently you can paint sooner. Time is money.

Sometimes it is very difficult to actually ventilate and control the overall air flow inside the tank effectively. Choosing the correct ventilation system is quite a consideration and must involve the type of waste contained in the dust and the requirements of the EPA, the local council and the customer.

There are a number of ventilation options readily available. Let's start with the simplest one.

Blue Wizard Dust Extraction Fan

The Blast-One portable Blue Wizard Fans have the capability to blow clean air into a work space or extract dusty air from it with relative ease. Three high performance models are available from Blast-One and these fans have been specifically designed for this industry and can ventilate up to 10,000 cfm - now that’s power! Easy and quick fan set-up using a 20” flexible duct that connects directly to the fan from the contaminated area, the ease of operation is soon realized. Inflatable dust socks can be attached to the Blue Wizard Fan to collect visible dust particles (not suitable for hazardous dusts such as lead). The use of a dust sock is ideal for temporary containments and blast sheds. How do you want your fan powered? Blue Wizard Dust Extraction Fans can be compressed air powered, 3 phase electric or single phase electric. Special electric units are available for use in hazardous areas containing combustible dust or flammable fumes.

blue wizard ventilation van

Mobile Dust Collectors

Blast-One Mobile Dust Collectors are available from 6000 cfm to 40,000 cfm. They have been designed to be easily transported, easy to use and require very little maintenance. Units are powered by diesel engines or optional electric motor.

How Do Dust Collectors Work?

mobile dust collectorDust laden air travels down the ductwork and enters into the dirty-air inlet plenum at the rear of the Dust Collector. Here the heavier particles drop out of the air stream. The air is then drawn through a large bank of specialized filter cartridges and dust is deposited on the outside of the filter cartridge. Filtered air passes through to the clean air plenum and is exhausted through the fan blower to atmosphere.

The cake of dust on the cartridges is dislodged continuously by a automatic reverse pulse jet. Dust drops into the hopper of the collector and is transferred by a screw conveyor to a conveniently located dust outlet for easy transfer to receptacle for disposal.

Mobile Dust Collector Features and Benefits

  • Ultra™ Filtration
    Blast-One Dust Collectors are fitted with teflon coated Ultra™ cartridges which give maximum surface area, and an amazing 99.998% removal efficiency for all dusts over 0.5 micron. This means you effectively capture hazardous dusts and meet clean air regulations and standards.
  • SmartPulse™ Cartridge Cleaning System The filter cartridges are reverse pulse cleaned using Maxipulse™ cleaning jets so that filters are cleaned from top to bottom. A SmartPulseTM Controller measures how dirty the cartridges are and only turns the pulse system on when required. This greatly increases the life of the filter cartridges.
  • Screw Conveyor Dust Discharge
    A built in Screw Conveyor discharges all collected dust residue into a sealed bag or drum for safe disposal. The operator simply moves a lever to open and the system empties into an EPA approved collection device.
  • Onsite Mobility
    Mobile Dust Collectors are built standard on a heavy duty skid base with retractable levelling legs. As an option they can be fitted with axle and wheels for towing around a site. To reduce crane and transport costs, many sizes can be fitted with a side loader transport kit which includes container twist lock corner points.

Do you have a tank or containment 300 ft away that you need to ventilate? No problem with a Blast-One Mobile Dust Collector, which incorporates a special high pressure fan that is designed to suck air along long lengths of ducting without significantly reducing air volume.

Flexible Ducting for Ventilation and Dust Extraction

  • Tough coated membrane wrapping
  • Spiral reinforcing ribs for suction applications
  • ‘Concertinas’ for compact transportation and storage
  • Fully flexible for adapting around bends, corners, etc.
  • Heavy Duty Ducting has closely spaced reinforcing for maximum strength – also comes with handy rope tabs and extra wear strip on the outside

standard duty ventilation ducting
Standard Duty Ducting

heavy duty ventilation ducting
Heavy Duty Ducting
light duty ventilation ducting
Light Duty Ducting


Dust Control Regulations

Check with the Environmental Protection Authority regarding dust control standards in your state/territory.

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