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DEAL Processor open bottom live floor rotary debarkers

Features

• Three or more rotors protruding into a static bin

• No transfer plates between the rotors - hence live floor.
• All or a portion of the rotor discs interleaf to retain fibre and provide primary classification – hence open bottom –

• Each successive rotor, from low position thru high position, rotates at an increased rate to prevent pull through.
• Rotors are placed in a compound angle to optimize rotation.

• High frequency of abrader blocks on the rotors.

• Rotors are specifically configured for each application to provide optimum performance in reaching desired targets.
• Rotors rotate and in turn agitate and tumble the fibre

• Debarker is placed on an incline to assist wood movement.

• Wood moves to the lowest end.
• Abraders bruise the bark and create a weak point at the bark to fibre interface where the rubbing of log on log can complete the bark removal process.

• Stationery cutters can be placed on the sidewall and fingers plates to assist in difficult debarking conditions.
• Not typically required.
• Recent innovations include side discharge stem management – see DEAL Pocket Rotary
• Recent innovations include independent electric or hydraulic rotor drives.
• Recent innovations included specific tooling to limit cutting depth.
• Can be fed over the side parallel to the rotors, conveyed in from the end above the rotor bed, conveyed in at the rotor bed height, grapple or button top feed, crane feed, etc.
• DEAL is the first commercial application of the open bottom live floor rotary debarker.

Benefits/customer value

• Dry debarking
• Does not require de-icing or thawing of frozen fibre
• Can process small diameter and crooked material effectively

• Can do short stems

• Processes crooked stems and shorts

• Low maintenance costs.
• Increased fibre utilization.
• Highly efficient in heavy loading due to live floor arrangement.
• Can handle material contaminated with inorganics or undesirables.

• Handles moderately limbed material and maintains production
• Can handle large diameter stems.

• Effectively processes stems the full length of the rotor array

• High tooth incidence promotes simultaneous full stem debarking.
• Lower white wood losses.
• Full spectrum debarking applications.
• Pulp and paper
• Sawmill prime stem delivery Residuals.
• OSB/MDF/HDF/ LVL/ Engineered wood products.
• Fibre optimization applications