DynaYield^TM Chip Conditioner

The Jeffrey Rader Chip Conditioner is commonly used in chemical pulping processes and the thermo-mechanical pulping process (TMP). The Chip Conditioner reduces pins and fines and lowers maintenance costs

The Chip Conditioner consists of two heavy duty rolls with removeable profiled surfaces. They rotate towards each other and pull the oversize chips between them. The profiled surfaces are aligned so that the pyramid apexes on one roll travel in the valleys of the apexes on the adjacent roll.

Low Fines and Pins

With normal oversize wood, the Conditioner typically generates less than 1% fines and 3% pins, verses Chip Slicers generating 2%-8% fines and up to 15% pins.

Reduced Maintenance Costs

Due ot reduction in wear parts in contact with material, and due to low speed action of the conditioning process, the wear is significantly less that any other fom of overs processing.

Less Downtime

There are no knives to change; no wearbars to rotate; no gauge plates to adjust and replace. Typically the conditioner only requires service every two years and minimal service during that time. Available uptime is 98%-99%.

Capabilities

An important feature of the Jeffrey Rader Chip Conditioner is it's ability to handle small portions of tramp without going off-line. In slicers, a shear pin or "safeset" disconnects and shuts down the slicer under load, then the unit must be locked out, dug out, reset and/or unlocked. With the Jeffrey Rader Dynagage Conditioner, the dynamic roll is allowed to move away from the static roll, and once the tramp is through the unit, the roll automatically moves back to the proper setpoint without shutting down the flow.

Applications

The normal application for the Chip Conditioner is in a chemical pulping process, processing the oversize materials by fissuring the wood chips parallel with the grain to allow the cooking liquors to penetrate the chip, and allow the oversize chip to cook as an acceptable size chip.

Another appllication is in a thermo-mechanical pulping process (TMP), as a preconditioning device for the entire chip flow. The benefit to the pulp & paper industry is the reduction of refiner power, smoothing of power oscillation during operation and better pulp uniformity.