Fume Extraction is the process by which fumes, or smoke and other particulate matter produced in industries and factories are extracted into a filtration system. The need for a highly developed fume extraction process is required in industries for welding, spraying, painting etc. They produce fumes of harmful chemicals that pose a serious threat to the employees involved in this production stage. Fume extractors use multiple filters to deal with different fumes and particles. The ductless units are cheap and use a powerful fan and multiple filters. They use less space, weigh less, consume less electricity and filter removal is easier.
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Types of fume extractors
#1. Portable: This fume extraction machine has a footprint design. It is compact, lightweight and comes in different sizes and volumes. Each unit has high capability casters on its wheels. Fume capture arms are flexible and can be configured for up to 4 users.
Uses: Welding, brazing, grinding, soldering, powder collection.
#2. Benchtop fume extractors: They have small footprints and take very little space. They are placed in close proximity to the fume generation process. They come in various fume processing volumes.
Uses: soldering, small experiments, pharmaceutical dosing and sorting.
#3. Shelf or enclosure mounted: These are compact fume extraction machines and do not require external ducts. The air is re-circulated back after getting filtered from toxic fumes. They are placed close to the fume source and have a hose to direct the airflow.
Uses: Laser marking, particulate control, soldering, printing fumes, vapour source capture, solvent and epoxy fume control.
#4. Wall-mounted: They do not consume floor space and are fitted on walls with a hose that is supported or flexible.
Uses: Grinding, welding, brazing, organic and solvent fume removal.
#5. Stand mounted: These are well suited for elevated sources of capture. They are perfect for big machinery, open workshops and saves floor space.
Uses: Chemical fume extraction, laser fumes, particulate control, printing fumes, grinding.
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Benefits
Employers should take care of health and safety of the employees to continue the productivity and workforce. This will increase employee satisfaction and morale along with the reputation of the company in the competitive market. It prevents environmental degradation. Also, Occupational Safety and Health Administration (OSHA) have clearly defined Permissible Exposure Limits (PEL) to which all companies must abide by.
Filters Used in Fume Extractors
Particulate Filters: It uses high-efficiency fiber glass to capture all particles, bacteria, dust and smoke. It prevents asthma, allergies.
Uses: Particulate control, dust control.
Activated Carbon Filters: These filters use adsorption technique for capturing organic vapors and solvents. Activated carbon has millions of pores that increase the surface area of adsorption. These filters need to be replaced once they become saturated.
Uses: Adsorb chemical fumes, organic vapors and solvents.
Micro Plate Filters: Here high pressurized air is applied on the outer surface of the filter. The waste falls in the dustpan below. They do not need to be cleaned.
Uses: Welding, metalworking, power handling
How to select the perfect Fume Extraction machine
Selecting the right type of fume extraction machine is important because it involves money and also the machine has to get ISI certification. For choosing the right fume extraction machine following points must be considered.
- How much are your workers exposed to the toxic gases?
- Evaluate and change the process and to reduce toxic fumes
- Consider the size of the factory
- List out the processes in which toxic fumes are released
- Impart regular training to the employees for safe working practices
Extracting the toxic fumes is a very important part of any factory to create the hygienic working conditions for the employees. Definitely consider buying this machine for your factory.
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