Transfer Point Solutions Increase Productivity At Container Board Plant
Products Used ApronSeal™ Single Skirting , Tail Sealing Box , Tracker™
Product Types Used Transfer Point Solutions , Belt Alignment , Belt Sealing , Tail Protection
Solutions Installation
Industry Pulp and Paper
Customer Weyerhaeuser, Pine Hill, Alabama

Problem

To improve bark-handling efficiency, the Weyerhaeuser Pine Hill containerboard mill employed MartinPLUS® Services to rebuild the transferpoint on its conveyor system.

Bark and wood waste are used as fuel to produce heat and steam for this container board plant. A series of belt conveyors — 36 to 48 inches (914 to 1219 mm) wide — carry bark to the powerhouse. The Pine Hill Mill began a program to improve its materials-handling operations and eliminate fugitive materials. The bark conveying system was the first system to be upgraded.

Solution

The upgrade project on the bark conveyors at Weyerhaeuser Pine Hill included Martin® Belt Support Cradles and Martin® ApronSealTM Single Skirting.

Martin Engineering provided a detailed engineering study that listed a number of recommendations. They included: moving the head pulley of one conveyor and the tail pulley of a second conveyor, lowering the overall height of a third conveyor, changing three conveyors to a picking-idler style to improve cargo capacity, installation of training devices to improve belt tracking and upgrading the belt cleaners on all conveyors to improve cleaning performance.

MartinPLUS® Installation Services installed new transfer point components on the six conveyors in the bark-handling system during the plant’s spring outage. On each conveyor, installation crews removed old skirting and chute sections. They installed Martin® Support Cradles with Center Rolls on each conveyor, with the number of cradles installed matched to the length of the conveyor’s skirted area. The cradles stabilize the belt path, preventing sag, entrapment and spillage.

Each conveyor had Martin® ApronSeal™ Single Skirting installed on both sides to keep material on the belt. To prevent material roll back from the back of the loading zone, a Martin® Tail Sealing Box was field-fabricated for each conveyor. To make sure the belt is properly centered as it enters the loading zone on each conveyor; a lower unit of the Martin® Tracker was installed.

Results

A Martin® Tail Sealing Box was field- fabricated on each of the bark conveyors at Weyerhaeuser Pine Hill.

The plant is very pleased with the performance of the Martin® products installed in its bark-handling system, and the work of the MartinPLUS® Installation Services crews. The plant is now reviewing Martin Engineering proposals to upgrade additional conveyors, including the plant’s coal-handling system.

Resources

PDF - Printable Version of Case Study Download
Brochure - Transfer Point Solutions Download
Brochure - MartinPLUS® Services Download
Brochure - Martin Engineering Corporate Profile Download

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