Rejects from recycled fiber lines are quite wet when they leave the process, with a lot of free water and water stored in the fibrous material. While free water is relatively easy to remove, the water in the fibers is more critical. Considerable force is needed to achieve an acceptable dry content in the material. However, the higher reject consistencies also help save on drying and disposal costs.
The Reject Compactor ReCo is a robust screw press for dewatering fiber-containing rejects. It is best suited for rejects from
drum pulping and conventional pulping systems - ReCo-C (coarse rejects, big plastic portion, higher consistency)
fine screening and DAF - ReCo-F (finer rejects, high fiber content, low consistency)
Typical coarse rejects are:
Pieces of plastic and plastic films, undissolved paper (light)
Stones, pieces of metal (heavy)
Typical fine rejects are:
Fibers, stickies, wax (light)
Sand, glass, small pieces of metal (heavy)
The Reject Compactor ReCo is available in three different models:
ReCo-C: for coarse pulping rejects with higher consistencies, typically 10-45%
ReCo-F: for fine rejects with higher fiber content and consistencies down to 1.5%
ReCo-L: light design with smaller capacities for fibrous rejects and/or consistencies as low as 0.8%; discharge consistency up to 35%
Benefits
1. Screw
Sturdy two-flight screw for even distribution of forces
Wear-resistant hard facing
Double flight thickness in high-pressure section
2. Screen basket
Modular heavy-duty screen baskets with replaceable screen plates
High wear resistance
Octagonal design prevents material from rotating with the screw