Industrial Dust Control

When dust accumulates in a mill or factory, it can explode and result in fire and destruction. Every manufacturing facility is vulnerable.

Combustible dust can be formed by milling, sanding, grinding, crushing, cutting or simply handling material that is in powder form.

Dust explosions occur when the following criteria is met:

  • combustible dust
  • ignition source (fuel)
  • oxygen
  • dispersion of dust particles in sufficient quantity and concentration
  • confinement of the dust cloud

The best way to prevent dust explosions is by vacuum. Some plants try to use shop-style vacuum - which is fine for general cleaning, but a central vacuum system is always a better option.

Central Vacuum Systems

Central vacuum systems differ from traditional pneumatic conveying systems or

dust collection systems. Pneumatic conveying systems have a defined source and destination while a central vacuum system varies in the number and location of the pick-up vacuum points. Most systems are designed for multiple users and thus they need to perform equally well when one or multiple users are using the system at one time.

Vacuum systems are available as either a portable or a central system. A portable system typically has a collection container mounted on wheels and a flexible plastic hose attached to the container. Various vacuum attachments can be used on the free end of the hose. The vacuum is supplied by a blower or by plant compressed air.

A central system consists of a vacuum power unit with a collection container and it is usually installed at one location in the plant. In some applications, the power unit and container ore on wheels so the system can be moved. A network of tubes extends from the collection container, along the ceiling, to multiple workstations or pickup points. At each station, a flexible hose is connected to the vacuum network at the top and drops down to operator level at the bottom. As with a portable system, the free end can use a myriad of attachments - each designed for optimum pickup of certain types of materials and in certain locations. The central system usually has a larger blower running it.

Keep your plant safe. A central vacuum system can save lives.

McKenna Engineering offers sales, service, and repair to central vacuum systems from the following manufacturer:

  • Hoffman & Lamson

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