Dry Particle Classification System Eliminates Need for Settling Ponds

SOURCE: Van Tongeren America | June 28, 2019

Lebanon, PA – Now a green solution for conserving water in aggregate mining and production also solves land use and worker safety troubles. The Gravitational-Inertial Classifier (GIC) system from process equipment manufacturer Van Tongeren America, Lebanon, Pa. (Van-Tongeren.com), automatically separates dry materials without water to eliminate the need for settling ponds, sludge pits and other basins required to manage the high volumes of wastewater generated daily by the traditional wet process. A modern, environmentally friendly approach, the GIC opens large areas of land that may be used to increase production and/or store material instead of for managing wastewater.

By removing settling ponds from the site, the GIC also reduces the risk of worker exposure to potentially hazardous materials and eliminates permit-required confined spaces along with the need for dedicated, personal protective equipment while streamlining the permitting process for new plants. “Real estate is at a premium, so if you don’t use land for settling ponds then you’re essentially creating more land at no cost, just by using the GIC,” says Steve Demeyer, process management manager for Luck Stone, Manakin Sabot, Virginia.

Ideal for classifying manufactured sand, cement, crushed stone, salt, lime, soda ash and a variety of other aggregates and minerals, the Gravitational-Inertial Classifier system features a proprietary, heart-shaped design that passes a current of air through a curtain of falling material then directs each particle towards a series of angled vanes. Coarse particles are discharged and entrained fine particles are recirculated in an eddy current until discharged and captured by a dust collector. The GIC separates particles at any cut point from 300 μm to 63 μm (50 to 230 mesh) in unattended, 24/7 operation.

For a free brochure or more information, contact Van Tongeren America, LLC, 518 South 8th St., Lebanon, PA 17042; 717-450-3835, www.Van-Tongeren.com.

Photo depicts sunset over the Gravitational-Inertial Classifier (GIC) system by Van Tongeren at the Luck Stone Goose Creek Plant in Leesburg, Virginia.

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The original company was formed in 1971 as Van Tongeren (UK) Limited, a subsidiary of Van Tongeren Holland to provide direct Van Tongeren technology to the United Kingdom.

Van Tongeren first started in Holland in 1927 introducing a greatly improved type of cyclone far superior in efficiency to the generally available designs at that time. Over the years, Van Tongeren technology became acknowledged throughout the industrial world as a leading authority on cyclone design and many current designs are freely based on the original Van Tongeren concept.

Due to changes in the structure of Bureau Van Tongeren in Holland in the early 1970’s Van Tongeren (UK) Limited became deeply involved in the international market worldwide and was responsible for the further development and exploitation of Van Tongeren technology including the updating of original data. In 1983 the name of Van Tongeren (UK) Limited was changed to Van Tongeren International Limited to acknowledge the truly international trading of the British company.

Further changes in the Bureau Van Tongeren organization at the end of 1986 resulted in the acquisition of 75 percent of the shareholding by British shareholders and directors early in 1987 and the following year 1988 the remainder of the shares were acquired by the British shareholders.

Since 1988 Van Tongeren International has been a wholly owned British company and a natural successor to the original Bureau Van Tongeren maintaining and developing cyclone technology and the application of cyclones in industry to very high standards required for current processes.

More recently (April 2016), Van Tongeren International Limited purchased NextGen Cyclones LLC to form +Van Tongeren America LLC.  The new company will market, design and subcontract fabrication of FCC cyclones and classifiers to the USA and Canada. The Van Tongeren America company has a combined experience of over 100 years in FCC cyclone design and supply with one of Van Tongeren International’s former licensees. Their experience encompasses all major licensors and oil companies in both the US and abroad.  The classifier, industrial cyclone, and bag filter product lines will be available worldwide through the Van Tongeren