Discharge Bottoms

Discharge Bottoms

Discharge Bottoms or Bin Bottoms Multiple Screw Feeders) are equipped with a modular trough which encloses up to 6 shafted helicoid flight or paddle screws, flanged external, fully protected end bearing assemblies complete with manually adjustable packing gland and shaft seal, a rectangular outlet spout covering the entire width of the unit, bolted end plates, splined shaft couplings for medium-heavy-duty, flanged shaft couplings for heavy-duty version,

Furthermore, Bin Bottoms are equipped with one gear motor per screw shaft or, depending on the application, with a drive unit driving more screws.

Functions

Discharge bottoms or Bin Bottoms are used to discharge difficult materials from polygonal hoppers / silos. In particular they are used for the extraction of biological or industrial sludge, paper scrap, wood chippings, sawdust, flour or bran in flour milling.

Features

• Robust design
• Screw diameters: 150mm (6¿) - 600mm (24¿)
• Up to six screws in one trough
• Open trough length ranging from 1,500mm (5 ft) to 4,000mm (13 ft)
• Trough casing and screws are manufactured in carbon steel, stainless steel or SINT® engineering polymer (screws only)
• For certain applications screws and trough lining manufactured in SINT® engineering polymers
• Medium-heavy-duty or extra-heavy-duty helicoid flight screws or paddle screws
• Medium-heavy-duty or extra-heavy-duty trough in modular flanged sections
• Vertical outlet spout with rectangular cross section or open trough flush outlet both with integrated drilled flanges according to WAM® standards
• Robust cast iron body flanged end bearing assemblies with externally positioned bearing units and manually adjustable packed gland seals
• Splined shaft couplings (medium-heavy-duty); flanged shaft couplings (extra-heavy-duty)
• Independent direct compact gear motor drive for each screw

Benefits

• Promotes mass flow
• Gives widest possible material extraction surface
• Avoids bridging
• Avoids segregation
• Provides constant material extraction and feeding even with most difficult materials
• Constant feed rates
• Modular design allows easy access and individual custom-design features
• High degree of self-cleaning