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Bio-Solids Handling and Headworks

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  • Colorado  303-233-7400
  • Utah  801-268-0600
  • New Mexico  505-255-6565
  • Arizona  602-252-1726

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Bio-Solids Handling and Headworks

from BioSec Enviro

Shafted & Shaftless Screw Conveyors

Since 1978, our screw conveyor systems have been installed in many of the largest and most complex dewatered sludge cake applications in North America. We provide a full line of conveyance systems for maximum flexibility and performance:

  • Shafted and Shaftless
  • Horizontal, Inclined, Vertical and Live Bottom
  • Full Face, Ribbon and Notched Flights
  • Fixed and Adjustable Paddle
  • 304 SS, 319 SS or A-36 painted
  • Any configuration to meet your process needs
  • Less complex than cake pumps
  • Enclosed configuration controls odors
  • Less housekeeping – no spillage
  • Lower maintenance costs

BioSec Intermediate Bearings for Shafted Conveyors

BioSec offers Intermediate Bearings in many shapes and sizes. By applying a specially developed flexible coupling, the resulting extended life expectancy of the intermediate bearing enables greater distances between bearings.         Advantages:

  • Long distances between bearings
  • Long life expectancy for bearings
  • Eliminates the need for multiple (cascade arrangement) conveyors
  • Can be retrofitted to existing screw conveyor installations
  • Suitable for reversing screw conveyors
  • Alternate designs for open or sealed bearings
  • Local or central lubricators
  • Eliminate the concerns of dry operation

BioSec BioWear Liners for Shafted & Shaftless Screw Conveyors

BioWear Liners are designed to minimize wear that occurs during transport of abrasive material in both shafted and shaftless screw ocnveyors. BioWear Liners are interchangeable with existing wear liners and can be provided in various thicknesses. The liners will be designed to match the existing screw conveyor securing system. The exact size of the liners required is to be provided to BioSec as sizes vary between screw conveyor manufacturers. The liners can be provided flat or preformed to size.

BioWear Liners are designed for transporting abrasive materials and will provide three to four times the life expectancy of UHMW-PE, depending upon the operation of the equipment.


BioSec Conveyor Quick Reference Guide

Capacities & Dimensions

Horizontal Shafted Conveyors

Capacity m3/hr             ft3/hr 21           738 29           1,015 34           1,199 44             1,550 67           2,362 89             3,155
Diameter D mm           inches 356           14 406           16 457.2           18 508           20 610           24 711.2             28
Trough Height H mm           inches 240           9.4 260           10.2 290           11.4 320           12.6 370           14.6 430             16.9
Support Height V mm           inches 280           11 300           11.8 330           13 360           14.2 410           16.1 460             18.1
Cover Width B mm           inches 552           21.7 604           23.8 655.2           25.8 706           27.8 808           31.8 910             35.8
Max RPM 54 47 42 38 31 27

Horizontal Shaftless Conveyors

Capacity m3/hr             ft3/hr 11             387 13             473 17             618 24             841 31             1098 45             1604
Diameter D mm             inches 285             11.2 315             12.4 360             14.2 420             16.5 480             18.9 580           22.8
Trough Height H mm             inches 220             8.7 240             9.4 260             10.2 290             11.4 320             12.6 370             14.6
Support Height V mm             inches 250             9.8 270             10.6 290             11.4 320             12.6 350             13.8 400             15.7
Cover Width B mm             inches 494             19.4 535             21.1 580             22.8 644             25.4 704             27.7 804             31.7
Max RPM 34 30 27 23 20 16

Note: The capacities quoted above will vary depending upon the material to be conveyed, material dryness, and the speed of the conveyor. Dimensions are approximate.

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Vertical Screw Conveyors

The listed capacities are an indication of performance of various vertical conveyors. The capacity depends on several factors, the main one being the product to be lifted.         As a rule, vertical conveyors are not fitted with intermediate bearings. In circumstances where the material are to be transported over long vertical distances, it is recommended that staged vertical conveyors are employed. Vertical conveyors can be used on many different materials, including wet, sticky dewatered biosolids. The compact design of the vertical screw conveyor has no return parts, like a belt conveyor.  Therefore, one significant advantage is the limited  size of the footprint.  They can be installed into very tight spaces; typically with the drive able to be mounted at the top or the bottom of the conveyor.

Vertical Screw Conveyors – Shafted Capacities

Capacity m3/hr             ft3/hr 6             210 15             530 24             850 35             1,240 50             1,770
Diameter mm             inches 375             14.8 480             18.9 550             21.7 690             27.2 790             31.1

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Wastewater Screens & Equipment

BioSec provides wastewater screens and MBBR/IFAS biological wastewater treatment solutions for municipal and industrial facilities, with a wide range of screening, conveyor and storage equipment options. Built from heavier materials (stainless steel, etc.) and robust components to perform dependably for more than 25 years, our equipment meets the most rigorous demands for reliability and long-term service.

Headworks systems include:

  • Screens & Separators
  • Grit Removal
  • Compactors
  • Washers
  • Horizontal Shafted and Shaftless Conveyors
  • Inclined Shafted and Shaftless Conveyors
  • Vertical Shafted and Shaftless Conveyors
  • Grit Conveyors
  • Screenings Conveyors
  • Electronic Controls