BROOKFIELD, WI (JUNE, 1996)…
HEIL ENGINEERED SYSTEMS announced it has completed a contract with the City of Rapid City, SD to manufacture, install, and start up a system to recover recyclables and prepare solid waste for composting at its new 330 ton per day regional facility.

Located at its existing landfill, the plant has become the largest MRF in South Dakota and will become the first major facility in the state to produce compost from the organic portion of municipal solid waste.  Compost will principally be used for landfill cover and mine reclamation.

Heil supplied and installed two processing lines, one (35 tph) to prepare solid waste for composting and another (10 tph) to process "blue bags" containing recyclables.

The solid waste processing line contained sorting stations for removal of "blue bags" and non-processibles, a trommel to open plastic bags, a magnetic separator for ferrous recovery and conveyors to transport the remaining waste to two (2) Dano rotary drums for homogenizing and macerating the waste in preparation for composting.

The "blue bag" line contained a bag opener to liberate the recyclables from the "blue bags", sorting stations for removal of film plastic and manual recovery of PET and HDPE, a magnetic separator to recover ferrous cans, an air classifier, a screen to divert broken glass, a glass crusher and screen, and an eddy current separator for automatic recovery of aluminum beverage cans.  Corrugated and other recovered recyclables are baled for market.

Inside of processing building showing rotary trommel and portions of sorting lines.  Sorting line visible on the right is the 10 tph mixed recyclable sorting line.

A dust collection system and electrical controls were installed for clean, safe operation of the entire system.  The sorting stations throughout the facility are climate-controlled enclosures for worker comfort.

Construction began in late 1994 and the Heil front-end portion of the plant became operational in June, 1996.  The Alliance of Architects and Engineers, consultants to the City, is currently finalizing the remainder of the composting system which will be constructed in 1999 or 2000.

Heil Engineered Systems is a leading supplier of solid waste processing, materials recovery, compost preparation, fuel preparation, and fuel delivery systems to private firms and municipalities throughout the country.

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