Andela Gypsum Board Recycling System

                              Equipment Description



Scrap Gypsum Board Reduction and Separation

At the heart of the Andela gypsum board recycling system is the containerized gypsum board reduction and screening unit. The scrap gypsum board is reduced and screened into a finer grade of gypsum and a larger paper product.

* Enclosure - The gypsum board recycling system is enclosed in an 8 ft. wide by 9 ft. tall by 40 ft. long container that isolates the gypsum board processing from operator intervention and contains the gypsum dust inside of the processing enclosure. The
gypsum board reducer, conveyor and screening equipment are assembled and shipped inside of the container. It is placed on the support frame to elevate the container for ease of maintenance and operation.

* Andela Gypsum Board Reducer - The gypsum board reducer processes 10 tons/hour of gypsum board using the patented Andela flexible impactors to selectively reduce the breakable material like gypsum but leaving the paper in a larger form for ease of separation. The feed conveyor extending out the front end of the container receives the gypsum board and moves the material into the container under an active leveling roll that pushes back and levels material more than eight inches high on the belt. Upper and lower infeed rolls pull the gypsum board, 1/2” to 6” high on the belt, into the pulverizer chamber for processing. The flexible impactor design quietly and efficiently pulverizes the gypsum and reduces the paper.

* Conveyor - The conveyor moves the mixed gypsum and paper from under the gypsum board reducer and up into the screen for separation.

* Ferrous Metal Separation - A magnetic conveyor head pulley removes any ferrous metal from the pulverized gypsum and paper mix. The ferrous material falls out the bottom of the container and into a receptacle located under the container.

* Trommel Screen Separator - The rotating barrel screen is an integral part of the container that tumbles and separates the gypsum and paper. The finer powder and granular gypsum less than 5/8” in size falls through the screen and is conveyed out from under the container. The larger paper tumbles until separated from the gypsum and exits the end of the trommel screen. It drops out the bottom of the container onto a conveyor for transport to the baler or compactor for final processing and storage.

* Dust Collector - The large bag house dust collector located outside of the building is connected to the container and collects the dust generated in the container during reduction and screening. Ductwork installed inside and above the container draws the
dust away from strategic locations near the gypsum board reducer and trommel screen. It also creates negative air pressure inside of the container to keep the dust from traveling outside of the container and into the processing facility.

* Electrical Controls - A centralized control panel is provided with motor starters and controls for the dust collector and all the motors located inside of the container. The electrical control panel can be located on or near the enclosure for operator access and convenience.

Recycled Gypsum and Paper - Handling System

After processing in the containerized gypsum recycling unit, the paper and gypsum exit at separate locations for final conveying, storage or compaction, as required for the end markets. The system components required are different for each installation but usually include the following equipment.



* Baler/Compactor - The gypsum board paper is conveyed into a baler or compactor and compressed into bales of paper for efficient storage and transportation.



* Outfeed Conveyors - Outfeed conveyors transport the paper and processed gypsum from under the container to interface with the final processing, conveying or storage equipment provided as part of the system.