Fire risk in powder plants

July 2009
DEMM: Engineering & Manufacturing;Jul2009, p30
Trade Publication
The article looks at the fire hazards from failed oil sealed pumps from vacuum conveying of powders. It lists the causes of risks such as powder ingress into the pump that blocks the oil mist filters, and running with open ports for long periods of time. It also offers solutions to address the problem such as changing the pump type to a liquid ring vacuum pump which uses water to provide the seal, and the use of hook and claw pump which could lower the risks. It adds that a high level of maintenance work could minimize risks of accidents.


Related Articles

  • Evacuation Speed Up. Marchese, Joe // Air Conditioning, Heating & Refrigeration News;10/6/2008, Vol. 235 Issue 6, p25 

    The author reflects on the evacuation of a refrigeration system. He argues that the emptying consumes time for a vacuum pump to reduce sufficiently the internal pressure of a system to allow the water vapor within to be reduced to acceptable levels. He argues that a technician has no control...

  • Thar she blows!  // PS: Preventive Maintenance Monthly;May97, Issue 534, p9 

    Presents tips on how to feed an overfull power steering pump.

  • Protecting progressing cavity pumps. Doty, David A. // Plant Engineering;3/6/96, Vol. 50 Issue 3, p97 

    Discusses three methods in preventing damage to progressing cavity pumps used in plant engineering. Features of cavity pumps; Operation of cavity pumps; Prevention of running dry; Use of nonintrusive pressure sensors; Use of short temperature probes; Presence/absence detectors.

  • Achieving optimum pump performance. Henderson, Edward D. // Plant Engineering;May96, Vol. 50 Issue 5, p87 

    Describes procedures on pump installations maintenance. Causes of failures; Use of pressure gauges; Type of control valve; Motor amperage. INSET: Steps to a successful pump startup..

  • "Early" retirement at 82.  // Machine Design;10/7/2010, Vol. 82 Issue 17, p79 

    The article offers information on the Nash Hytor #6, a liquid-ring vacuum which worked for 82 years before being detached to repair.

  • Pulping, papermaking changes mean more corrosive climate for pumps. Harrison, Andy // Pulp & Paper;Feb94, Vol. 68 Issue 2, p42 

    Discusses the importance of pumps in the manufacturing of pulp and paper. Importance of proper pump maintenance; Cost-effective maintenance measures.

  • 350-GPM Pumps...  // PS: Preventive Maintenance Monthly;Aug2000, Issue 573, p9 

    Discusses preventive maintenance and operation tips for pumps. Things to consider in battery recharging; Advice on opening the pump valve.

  • Leaky Pump?  // PS: Preventive Maintenance Monthly;Jan2001, Issue 578, p54 

    Presents information on the right O-rings for the AOAP vampire pumps.

  • Pump problems--and solutions. Holohan, Dan // PM Engineer;Sep97, Vol. 3 Issue 7, p21 

    Deals with the common problems of condensate pumps and its solutions. Clogged strainer; Too much sediments in the water; Condensate is too hot for the pump.


Read the Article


Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics