Green Air Cleaning Technology

Smog-Hog electrostatic precipitators offer a low-energy, high-efficiency air cleaning technology, capturing as much as 99.9 percent of submicron smokes, mists and emulsion oils using washable collection cells, the company says.

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Smog-Hog electrostatic precipitators offer a low-energy, high-efficiency air cleaning technology, capturing as much as 99.9 percent of submicron smokes, mists and emulsion oils using washable collection cells, the company says. Green advantages for the system include reusable collection cells, minimal fan size, low energy use, make-up air reduction, potential material recycling, and elimination of costs for filter media disposal and replacement. Smog-Hog mist collectors are available for indoor or outdoor use, for small source-capture applications down to 200 cfm, or large process exhaust streams as much as 40,000 cfm. The Smog-Hog is ideal for meeting OSHA and EPA regulations regarding metalworking oil smoke and coolant mists, welding smoke, quenching smoke, plasticizers, cooking smoke, asphalt smoke and similar mists.

Smog-Hogs use electrostatic precipitation (ESP) to capture particles down to 0.01 microns in size. Depending on system configuration, various prefilters and/or mist-stop filters capture the largest particles first. Smaller particles are electronically charged in an ionizing section, and then captured on closely spaced plates in a collecting cell, much the way lint is attracted to a wool suit by static electricity. Cleaned air can be recirculated into the plant, reducing make-up air requirements up to 80 percent to save energy, or the air can be released to atmosphere. Captured liquids drain from the collection cell for convenient disposal, reuse or recycling.

The systems can be used ducted or unducted, and smaller models can be mounted directly on machine tool enclosures. The newest and smallest model, the MSH, includes a variable speed control to minimize energy use and control air flow from 200-600 cfm.