Belzona Repairs Cyclone Inlet

Industry:

Pulp & Paper (PLPR)

Application:

Solids Handling Machinery (SHM)

Customer Location:

Paper Mill, Michigan U.S.A.

Application Date:

October 2008

Application Situation:

 The pulp cyclone removes scrap metal, stones, glass and other heavy abrasive debris from the pulp prior to screening.

Problem:

The inlet to the pulp cyclone showed severe erosion corrosion after only 8 months of service. It had already been patched once and had holed through again.

Products:

Substrate:

Cast Iron

Application Method:

Application carried out in accordance with Belzona Know-How System Leaflet SHM-11. A polycarbonate flange form was bolted on the casting and Belzona® 1812 applied to fill the eroded shell and rebuild the damaged flange area. The interior was coated with Belzona® 1321 to provide a smooth the surface and the flange form was removed.

Belzona Facts:

A replacement fitting was quoted at $25,000 and six weeks delivery. The Belzona material used in this repair cost less than $2,000. When the fitting currently in use is replaced by this fitting, it too will be repaired with Belzona abrasion resistant lining. The mill thus has a low cost durable back-up part ready for service.

Photographs Description

1. The fitting in the repair area
2. Flange form installed. Internal damage evident
3. Belzona® 1321 being applied over the Belzona® 1812
4. Completed repair