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Fume Extraction
Awareness of occupational health and safety issues are on the rise around the world. Issues related to breathing airborne pollutants are among the chief concerns. Many occupations are subject to breathing airborne particles, vapors, and fumes generated from the use of adhesives, flux gases, solvents, and the like. Exposure to the above and others leads to health hazards such as occupational asthma, which can result in turnover, absenteeism, and health related claims.
Fume extraction, whether at the small and portable level, or large volume units are critical to keeping the air and environment surrounding employees free of harmful pollutants.
Basic components of a Fume Extraction System:
- A collection point where fumes are captured
- An airflow source to pull fumes through the system
- And a filter system to remove the pollutants before the cleaned air is returned to the workplace atmosphere
Re-circulation of clean, conditioned air saves energy, lowers costs, and contributes to environmental regulations compliance.
THE COLLECTION POINT:
The most efficient fume extraction systems will remove the fumes as close as possible to their source. The best way to accomplish this varies and is always dictated by the type of work being done, the two general classes of Fume Extraction include:
- Tip Extraction:
For tasks involving a small work area, such as hand soldering, the collection point can be situated extremely close to the source of the fumes, right at the tip of the soldering iron. - Volume Extraction:
For tasks involving a larger area, such as the application of adhesives, a higher volume fume extraction method must be used. A typical Volume Fume Extraction System will consist of a cone-shaped nozzle situated over the source of the fumes.
THE AIRFLOW SOURCE:
The airflow source is a vacuum pump that provides airflow (via vacuum) to actively pull the dangerous fumes through the system. The kind of pump used depends on the type of fume extraction system:
- Tip Extraction Systems typically require lower airflow, but higher vacuum (up to 12,000 Pa for efficient fume extraction).
- Volume Extraction systems need a much lower vacuum (generally 2,800 Pa maximum), but require a high airflow rate for efficient fume extraction to occur.
THE FILTRATION SYSTEM:
The filter system utilizes three types of filters:
- A dust filter to remove larger particles
- A micro filter to remove most all of the remainder of smaller particles, and increase the lifetime of the gas filter (the seperation degree of this filter is 99.97% DOP)
- And a gas filter where the airflow is cleaned. The gas filter is made of activated carbon with a chemisorbant substance
The lifetime of the filter varies from 3-12 months, usage, particulate volume, and the type of pollutants being extracted.
Videos:
- Weller's Zero-Smog Fume Extraction Systems
- American Hakko's Fume Extraction System
- American Hakko's Smoke Absorbing System
- Easy Braid/Purex Fume Extraction System
For customers who qualify, Practical Tools will provide a FREE Fume Extraction consultation as well as FREE delivery & setup!!!
Call Practical Tools now to speak with one of our dedicated & knowledgeable sales engineers at (866) 434-7561 today!!!
