Decanter Centrifuge, Decanters, Centrifuges Decanter, Industrial Filtration System, Liquid Solid Separation System

US Centrifuge offers five sizes of horizontal continuous cleaning CQ model Decanter Centrifuges. The CQ Decanter Centrifuge range provides an effective, low-maintenance solution to continuous liquid clarifying and / or solids dewatering with advanced process and mechanical performance features.

The CQ Decanter Centrifuges are versatile and capable of adapting to varying throughput and process / material types. The machines are easy to adjust, require little operator attention, are relatively quiet, and feature a small footprint.

Decanter Centrifuge Models

The CQ Decanter Centrifuges consist primarily of a centrifuge-bowl, solids-conveyor (scroll), drive-motor, hydraulic scroll-backdrive, machine base, and covers. The covers serve as a guard and complete enclosure for the rotating assembly to contain and direct the solids cake and clarified effluent as they discharge from the rotating assembly.

The feed liquid / slurry is introduced to the centrifuge through a feed tube and into the feed distribution chamber. The feed chamber accerlerates the slurry to the speed of the bowl before introducing the slurry into the bowl.

Under centrifugal force the solids separate from the liquid and settle against the bowl wall, while the clarified liquid exits over the adjustable overflow weir. The scroll turns at a slightly different speed and conveys the solids up the inclined beach where it discharges from the solids end of the centrifuge. The slower the scroll moves in relation to the bowl, the longer the sediment remains in the centrifuge and the greater the liquid / solid separation. This differential between bowl and conveyor speed is fully adjustable, allowing a wide range of cake dryness. Optimal liquid / solid separation can be achieved by adjusting the conveyor speed and depth of the liquid in the bowl.

All CQ Model Decanter Centrifuges feature our standard triple angled bowl design. The decanter centrifuge bowls are manufactured in high wear and corrosion resistant "Duplex" steels to reduce maintenance costs. Internally, the decanter centrifuge bowl is unique because of the triple angled bowl and scroll, which allows the separated solids to be conveyed more effectively and with lower torque.

One of the major maintenance costs is scroll wear, particularly at the interface between the horizontal section of the bowl and the conical section (beach) of the bowl. The original objective in designing a scroll with a two-step beach angle at the conical section was to spread the wear and extend the time before the scroll needed repair. It has been a great success but an additional benefit is improved process performance. Solids are not held up at the transition from cylinder to conical sections and they are easier to convey. We see a reduction in torque and often a drier cake.

All CQ Model Decanter Centrigues are fitted with the major advantage of Viscotherm hydraulic scroll backdrives. The hydraulic scroll drive is incorporated as part of the bowl itself, eliminating the traditional practice of having a large motor or gearbox hanging on the end of the machine outside the pillow block bearings. This design reduces load and vibration, which allows the CQ machines to run at higher speeds while meeting stringent design safety standards.

Decanter Centrifuge Advantages

The hydraulic scroll drive also provides significant processing advantages:

• Automatically maintains constant torque load and pressure on the scroll during operation
• Automatically adjusts and compensates for changes in the feed material

• Provides three easy to use settings controlling

  • Scroll pressure
  • Scroll differential speed
  • Scroll speed boost
• Scroll can be turned when the bowl is stopped
• Scrolls can be operated in a "leading" or "lagging" condition

All CQ Model Horizontal Centrifuges are equipped with a field relaceable polyurethane feed liner. We introduced a field replaceable polyurethane feed liner five years ago to minimize the wear in the feed zone of the scroll. It is designed as a field replaceable item to reduce machine down time and repair costs. The ployurethane feed liner has proven so successful that we still have not replaced one.

Decanter Model Machine Specifications

Please select the Decanter Model you are interested in:

• Decanter CQ3
• Decanter CQ4
• Decanter CQ5
• Decanter CQ6
• Decanter CQ7

The CQ Model Decanter Centrifuges are built for safe, quiet, reliable operation, and are designed for relatively little maintenance when compared to other decanter centrifuges. When service and/or maintenance is required, US Centrifuge can provide routine field service and annual maintenance rebuilds and complete in-house repair services, such as:

• Scroll Re-Tipping and Hard-Facing
• Scroll and Bowl Re-Balancing
• Component Part Repair
• Total Machine Reconditioning

US Centrifuge supplies the CQ Decanter Centrifuge as individual units or as part of complete pre-engineered / pre-constructed system packages designed for specific applications and/or facility requirements.

Complete CQ Decanter Centrifuge System Skid Modules

Interested? Fill out US Centrifuge Systems's Decanter Application (PDF - 58K)

Download Decanter Centrifuge (PDF - 1.2MB)

Download Municipal & Biological Sludge Dewatering Decanter Centrifuge Information (PDF - 244K)

Download Snack Food Industry Decanter Centrifuge Information (PDF - 219K)

History of CQ Decanter Centrifuge in the USA

US Centrifuge and Centriquip have been developing unique centrifuge applications for more than 20 years. US Centrifuge Systems, based in Indianapolis, IN, and Centriquip, based in Derbyshire, UK, have previously focused on selling in their respective countries. These two leaders of innovation in the centrifuge and separation industry recently formed a strategic alliance to offer the best of both companies to markets throughout the world. Both companies have pioneered industry-changing technologies, and have multiple patents and industry firsts to their credit.