Disc Screen Description

• The Disc Screen consists of rotating discs for separating wastes through the clearance between the discs depending upon the size and the weight of the waste while the wastes move on the rotation discs.
• 10 to 20 discs are mounted on a long shaft depending on the working width of the screen and the number of the shafts are depending on the capacity of the screen.
• These shafts simultaneously rotate by the driving force of the motor.
• The screen holes of other size screens are easily clogged by wet wastes due to moisture.
• The disc screen minimizes the clogging by the rotation movement of the discs.

Configuration in line after the shredder

• Both the stationary screen and the mobile screener are placed in recycling lines after the shredder to separate the ground material into its different fractions.
• This makes it possible to take advantage of multiple fractions of the recyclable waste processed.
• The screener can also be equipped with diesel or electric drives, which means that it can either operate outdoors or indoors where zero harmful emissions are required.

Configuration in a line before the shredder

• Both the stationary screen and the mobile screener can be placed before the shredder in the case of mixed materials to be separated before the shredding process.
• An example is the processing of C&D (Construction and Demolition) or C&I (Commercial and Industrial), where the screen separates the fraction with commercial value from waste inert to prevent it from mixing during the shredding phase.
• This prevents contamination of the valuable material and reduces wear on the shredder.

Configuration in line between a primary and a secondary shredder

• In this scenario, either the stationary screen or the mobile screener is positioned between two shredders to process large quantities of material with the need to remove any dirt likely to produce excessive wear from the shredded material before the secondary shredder; size the clean and finished material (RDF -refuse derived fuel- or Woodchips) as an intermediate fraction; send clean and larger fractions to the secondary shredder.
• The efficiency of screens enables the use of a less powerful secondary shredder.

Adantages

• Save: It enable users to load the material just once with considerable savings on the cost of the loading equipment work cycles.
• Optimize: The loop system ensures that the material leaves the screen only when the desired size is reached.
• Simplify: The process eliminates the need for a secondary shredder with remarkable savings on investment and maintenance costs.
• Enhance: The Screens makes it possible to increase the value of otherwise undifferentiated waste by recovering multiple fractions of recyclable material.
• Reduces wear: Prevents the shredder from being loaded with material which will expose it to greater wear (like sand and stones)
• Prevents contamination: Prevents valuable material from being contaminated with waste material
• Energy savings: Reduces energy consumption by the shredder
• Reduces wear & cost: The shredded material is freed of material that is likely to cause wear, also there is the reduction in the investment related to the secondary shredder.
• Optimizes the intermediate fraction: The intermediate fraction is properly screened and cleaned.