FLOTTWEG DECANTER TECHNOLOGY Engineered For Your Success

TABLE OF CONTENTS Decanter Technology page 02 Basic Process Operations page 03 How The Flottweg Decanter Centrifuge Works page 04 The Decanter Product Line for the Water and Wastewater Business page 06 The New Flottweg Xelletor Series page 08 Flottweg Tricanter® page 10 Flottweg Sorticanter® page 12 Flottweg Sedicanter® page 14 Decanter Drives and Overload Protection page 16 Flottweg Simp Drive® page 17 Automatically Good "InGo" page 18 Flottweg Simp Control® page 18 Decanter Centrifuge Cleaning page 19 Sealing Systems page 20 Purging with Inert Gas page 21 ® = registered trademark in various...

DECANTER TECHNOLOGY In many processes, mechanical separation has a decisive influence on product quality, production efficiency and environmental impacts. Mechanical separation processes are found in practically all industrial sectors, including, but not limited to, food, chemical, pharmaceutical, biotech, mineral, and environmental processes. The basic principle of the solid bowl centrifuge has been known since the end of the 19th century. Over the course of time, technological improvements along with the availability of high strength and corrosion-resistant construction materials have allowed...

BASIC PROCESS OPERATIONS To obtain optimum results, solid bowl decanter centrifuges must be custom designed to suit specific separation processes. Flottweg meets the needs of the vast range of applications by offering a variety of basic designs, such as the decanter, Tricanter®, Sedicanter®, and Sorticanter®. ® = registered trademark in various countries. The Following Basic Process Operations Are Possible Using Solid Bowl Decanter Centrifuges ∙ ∙ ∙ ∙ ∙ ∙ Clarification of liquids Dewatering of sludge and suspensions Thickening of sludge Separation of three-phase mixtures; i.e., two immiscible...

How the Flottweg Decanter Works A decanter centrifuge can be viewed as a settling pond wrapped around an axis. In the settling pond, solid particles that are heavier than the liquid settle to the bottom, driven by gravity, building up a sediment layer on the bottom of the pond. In the rotating bowl of the centrifuge, solid particles that are heavier than the liquid move to the inner diameter of the bowl driven by centrifugal force and build up another sediment layer on the inner surface of the centrifugal bowl. Since the centrifugal force in the decanter is approximately 3000 x g instead of 1...

Feed The product is fed through a stationary pipe into the feed zone located in the center of the scroll. The product is then accelerated circumferentially and delivered through distribution ports into the bowl. Adjustable Impeller The clarified liquid can also be decanted with an impeller and discharged from the bowl under pressure. This eliminates the need for a separate chamber pump. The Flottweg Adjustable Impeller is an engineering refinement that permits quick and precise adjustment of the pond depth during operation to accommodate for changing process conditions. Overflow Weirs The clarified...

The Flottweg C Series Over the last five decades, Flottweg has acquired a great deal of expertise in sludge thickening and dewatering. We know the special requirements of the wastewater industry. Flottweg therefore decided to create a new decanter series solely manufactured for sludge separation, called the Flottweg C Series. This new decanter series incorporates the latest know-how in mechanical engineering, manufacturing, and control system design. The result is a new series of environmental centrifuges featuring Flottweg's quality, reliability, and optimal price/performance ratio. ® = registered...

® = registered trademark in various countries. Solids Discharge Liquids Discharge By Gravity Benefits of the C Series ∙ Continuously optimal separation results, thanks to the Simp Drive® ∙ Maintenance friendly – minimum downtimes ∙ p to 40% less energy demand (if using Recuvanes®) U compared to former decanter series ∙ Durable wear protection ∙ Reduces polymer demand – optimized oper

THE NEW XELLETOR SERIES The Next Evolution in Centrifugal Sludge Dewatering Flottweg has developed a unique centrifuge concept specifically designed for the high-efficiency dewatering of sewage sludge: The Flottweg Xelletor Series. Sewage sludge dewatering offers a wide range of potential savings for the operators of sewage sludge treatment plants. Often, costs for transport and disposal of dewatered sewage sludge can amount to 80% of the operating costs in mechanical dewatering. The dewatering efficiency of our machine is considerably higher than that of our previous models. Moreover, the Xelletor...

Solids Discharge Liquids Discharge By Gravity Benefits of the Xelletor Series We have set the bar high – by comparing the Xelletor System to our high-performance C series ∙ tra dewatering performance X u p to 10% less sludge due to a high dry-matter content in the dewatered sludge – thus high savings potential ∙ Xtra polymer savings up to 20% savings in polymer consumption ∙ Xtra capacity up to 15% more capacity ∙ Xtra energy savings additional energy savings of up

FLOTTWEG FLOTTWEG TRICANTER® TRICANTER® 3-Phase Separation ® = registered trademark in various countries. The Flottweg Tricanter® performs a 3-phase separation; i.e., the simultaneous separation of two immiscible liquids of different densities and one solid phase, provided that the solid phase is the heaviest phase. The main difference from a decanter is the separate discharge of the two liquid phases. The Adjustable Impeller The Flottweg Tricanter® discharges the heavy liquid phase through an adjustable impeller under pressure and the light phase by gravity.

Heavy Liquids Discharge Under Pressure ® = registered trademark in various countries. Solids Discharge Light Liquids Discharge Under Pressure Advantages of the Tricanter® with Adjustable Impeller ∙ Adaptation of separation zones during operation ∙ Greatest possible purity of the liquids to be separated ∙ daptation to changing conditions (product in the feed) A possible at any time ∙ Easy automation possibilit