SCREENS
TE-SMH Multi-Rake Bar Screens
Comb screens are reliable, robust, have a high flow-rate capacity and are able to rake close to the bottom of the channel. They are easy to clean, using a scraper mechanism for discharging combs or they can be tilted or ejected. These comb screens are also suitable for deep channels.
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Designed for treatment of municipal and industrial wastewater.
Driven by a chain wheel at the top, cleaning brushes are attached to the chains. Correct chain tension is provided by a self-tension mechanism with an optional visual chain tension check. For production, a simple chain principle is used from specially-hardened steel that cannot seize.
Screens can be equipped with electrical heating and insulation for outdoor use. An enclosed structure made of easily removable covers limits the spread of odour.
A water level pressure sensor is a standard part of the screens.
Normally, these bar screens are controlled in auto mode, depending on the level upstream of the screens and on timing.
Technical specifications
| Screen tilting angle | 50 – 85° |
| Slot width | 1 – 120 mm |
| Channel width | 300 – 3,000 mm |
| Channel depth | Up to 20,000 mm |
*Bar screens can be modified to meet customer specific requirements
TE-SKJH Fine Stair Screens
Fine stair screens are highly efficient for separate screening during wastewater treatment. Other industries (pulp, chemical, etc.) also use them due to their optimised structure. The main advantage is a self-cleaning surface with no need for cleaning brushes or water, the option of tilting to service position, and cleaning from the channel bottom with high flow-rate capacity.
They consist of a frame, filtration area and drive unit made of stainless steel, while the cleaning surface consists of vanes and blades. Solids are captured in the stepped vanes and blades, creating a filtration surface that allows even smaller particles than the slot width to be trapped. This leads to a high-efficient separation process. Their movement lets the blades bring solids, step by step, to the overflow edge.
A water level pressure sensor is a standard part of the screens.
Fine stair screens work in auto mode, depending on level, timing and the number of screen steps.
Technical specifications:
| Screen tilting angle | 40 – 75° |
| Overflow edge height | 400 – 10,000 mm |
| Active cleaning width | 160 – 3,000 mm |
| Slot width | 1 mm – 10 mm |
TE-SRH Screw Screens
A screw screen is a piece of equipment designed for treatment of municipal and industrial wastewater. It combines washing, transport, pressing and dewatering of screenings. Its main advantage is compactness, embedding variability and self-cleaning feature. Made of high-quality stainless steel, it is suitable mainly for outdoor installations.
All TE-SRH screens can be equipped with a flushing system that cleans away faecal matter before washing and returning it to the channel. Removing faeces screenings leads reduces weight.
The screens can be equipped with electrical heating and insulation for outdoor application.
Encased structure mitigates spread of odour.
Technical specifications:
| Screen tilting angle | 35 – 48° or vertical |
| Slot width | 0.5mm – 10 mm |
| Basket diameter | 700 mm up to 3,000 mm |
*Screw screens can be modified to meet customer specific requirements
TE-RH Manual Screens
Manual screens are designed for mechanical water pretreatment. Composed of a mesh, the filtration surface collects rough mechanical impurities which are then brought to the overflow edge manually, using rakes. The screens feature a pull-out design for easier maintenance.
Technical specifications:
| Screen tilting angle | 40 – 75° |
| Active cleaning width | 160 – 3,000 mm |
| Slot width | 5 – 120 mm |
*Manual screens can be modified to meet customer specific requirements
SCREENING PRESSING AND WASHING
TE-ZL Screw Press
Screw press with screen washing is designed for washing, dewatering and pressing of screenings. Economical in terms of space with minimum maintenance requirements. It reduces screenings up to 75%.
Our screw presses include the TE-ZL-P with a washing pump that reduces organic substance ratio in screenings up to 90% and screening volume and weight up to 86%.
The press features a standard washing water distribution, controlled by solenoid valves.
The press can be fitted with several hoppers, if required.
Screenings can be transported by conveyors or fall directly from the screens. Washing water reduces the screening to organic substances in the hopper. Treated screenings are transported to a container via a conical pipeline, while washing water returns to the channel with the organic substances. The entire process is automatic.
Screw presses are normally controlled in auto mode.
Technical specifications:
| Press clearance | 150, 200, 250, 300, 400, 500 mm |
| Organic substance reduction in screenings | up to 90% with TE-ZL-P |
| Reduction of screenings volume and weight | up to 86% |
*Screw presses can be modified to meet customer specific requirements
TE-HL Hydraulic Press
This Hydraulic press is designed for dewatering and pressing of screenings, providing a hygienic, enclosed transport of them even over long distances. It is easy to maintain, operates reliability and costs little to operate.
Screenings can either be transported into the press hopper by conveyors or fall directly from screens. The movement of a wear-resistant plastic working piston transports the collected screenings from the hopper into the pressing area to be pressed. A working piston creates the pressing force, while the pressed screenings in the discharge line takes care of counterpressure. Screenings get drained via slot holes in the pressing zone, while discharged water is fed back to the channel via the rinse water drain.
The press also contains a complete hydraulic aggregate. The hydraulic press is normally controlled in auto mode, depending on how it runs and the number of cycles of the working machine.
Technical specifications:
| Working piston diameter | 150*, 200*, 250*, 300*, 400* mm |
| Organic substance reduction in screenings | up to 30% |
| Reduction of screenings volume and weight | up to 60% |
*Hydraulic presses can be modified to meet customer specific requirements
CONVEYORS
TE-ZD Screw Conveyor
A screw conveyor is designed for hygienic, enclosed transport of various material such as screenings, gravel, sand, sludge and similar solids. The conveyor structure allows them to be installed in a horizontal, vertical or inclined position.
Conveyor screws can either feature a shaft or have a shaft-less design. The conveyor body is made of a pipe or an enclosed channel either clad with a special, abrasion-proof plastic or with special abrasion-proof lining.
Depending on customer requirements, the conveyors are fitted either with a single or several feeder and discharge hoppers.
These conveyors are also suitable for outdoor use and can be fitted with electrical heating and thermal insulation. They are normally controlled in auto mode, depending on how they run (fine screens, sludge centrifuge, etc.) and on timing.
Technical specifications:
| Standard conveyor size | 200, 260, 320, 400, 500, 600 mm |
| Standard conveyor length | up to 25,000 mm |
| Incline / work position | 0- 90° |
*Screw conveyers can be modified to meet customer specific requirements
BRIDGE TRAVEL DRIVES
EK 517 Electrical Wheel for circular tank bridge drives
EK 517 electrical wheels are suitable for bridge drives in circular settling and secondary settling tanks. Depending on the tank diameter and installation sites, the drives use single or double aggregate, or a combination of EK gearbox aggregate with a VK tug wheel.
The aggregate consists of an electric motor connected by a flange to a high gear-ratio planetary gearbox composed of a travel wheel made of high-quality material. A high-quality all-rubber or steel banding is mounted on the gearbox.
VK tow wheels are offered as accessory. Anchor dimensions for VK tow wheels and EK 517 gearbox aggregates are identical, allowing them to be swapped.
Advantages:
Compactness
Low weight
Small oil capacity
Option of using organic oils
Easy to install and maintain
Long life
High all-rubber banding quality verified under demanding operation conditions (in paper and pulp mills)
Easy to replace all-rubber bandings
EK 517 electrical wheel
| Oil capacity | approx. 1L | ||
| Weight | approx. 120 kg | ||
| Travel wheel diameter (all-rubber bandage) | Ø 456 mm | ||
| Travel wheel diameter (steel bandage) | Ø 310 mm | ||
| Permissible wheel load (all-rubber or steel bandage) | 37 – 50 kN | ||
| Travel speed | 1.9 m.min-1 | 2.5 m.min-1 | 3.93 m.min-1 |
| Electric motor output power | max 0.55 kW | max 0.75 kW | max 1.1 kW |
| Constant output torque | 3.1 kNm | 2.9 kNm | 2.9 kNm |
| Constant effective tension | 13.5 kN | 12.7 kN | 12.7 kN |
EK 351 Electrical Wheel for longitudinal tank bridge drives
EK 351 electrical wheels are suitable mostly for bridge travel drives in both sand and grease traps and in settling and secondary settling tanks. They work in tandem on a single travel bridge.
The aggregate consists of an electric motor connected by a flange to a high gear-ratio planetary gearbox, composed of a travel wheel made of high-quality material. A connection plate or flange attaches the aggregate to the bridge. It is often used to repair existing bridge travels as it can be an easy and quick substitute for the original drives, requiring minimum adjustments to the bridge frame.
VK tow wheels are offered as accessory. VK tow wheel and EK electrical wheel connection dimensions are identical.
Advantages:
Compact
Low weight
Small oil capacity
Option of using organic oils
Easy to install and maintain
Long life
High travel wheel quality
| Oil capacity | approx. 1L | ||
| Weight | approx. 135 kg | ||
| Travel wheel diameter | Ø 310 mm | ||
| Permissible wheel load | 50 kN | ||
| Travel speed | 1.9 m.min-1 | 2.5 m.min-1 | 3.9 m.min-1 |
| Electric motor output power | max 0.55 kW | max 0.75 kW | max 1.1 kW |
| Constant output torque | 2.2 kNm | ||
| Constant tensile force | 2 x 14 kN | ||
INTEGRATED PRETREATMENT
TE-INTEGRA Integrated Pretreatment
INTEGRA combines several treatment stages featuring transport, pressing, washing, screening dewatering and sand separation into a single process. It can be applied at municipal and industrial wastewater treatment plants with flow-rates up to 300 L/s.
A grease trap and aeration can be added to INTEGRA to create an enclosed assembly that mitigates odour creation. Manufactured of high-quality stainless steel, both aboveground and underground can be supplied with installation either indoors or outdoors.
Contaminated water flows into the first chamber with a TE-SHR screw screen filtration basket. The basket’s filtration surface can be moulded into a perforated metal sheet, mesh or wedge grid. Screw rotary movements transport the dirt collected in the filtration basket into the adjacent part to be pressed and drained. Treated screenings fall off the screens into a container. The screens can contain a flushing system to wash away faecal matter from the screenings while treated water enters the sand separator. Separated at the bottom, sand is transported with horizontal and inclined screw conveyors to the container.
The TE-INTEGRA is normally controlled in auto mode.
Technical specifications:
| INTEGRA 1 flow-rate | up to 300l/s |
| INTEGRA 2 flow-rate | up to 25l/s |
| Filtration slot width | 0.1 – 20mm |
| Material | Stainless steel |
*The TE-INTEGRA can be modified to meet customer specific requirements
GRIT SEPARATION AND WASHING
TE-OP-P Grit Washer
Designed for washing biological and mineral contamination from sedimentation, these grit washers feature more advanced sand contaminant removal than separators provide, lowering the organic component content in washed sand to ≤ 3% with high sand separation efficiency (95-90%) at 0.2-0.25 mm grain size. Easy installation and maintenance are advantages alongside variable embedding with optional thermal insulation and heating. Made of high-quality stainless steel, it works in a fully automatic mode.
Grit washers consist of a tank with supports and a lid, screw conveyor, drive, mixer, and support structure. A mixture of sand, water and organic substances is fed via an inlet pipeline to a vortex chamber. Grit is washed, separating the organic and mineral parts, in the washer tank’s lower, cylindrical part, where water is brought to whirl the grit bed. It is here where the organic substances are separated from the grit. A mixer whose blades turn in the separation area assist in separating the grit from organic substances. Free of organic bits, sand is transported via a screw conveyor to the container. Organic parts present in water are discharged from the tank via a special opening at timed intervals.
Technical specifications:
| Flow-rate | 3 – 50l/s |
| Screw length | 2000 – 10,000 mm |
*Grit washers can be modified to meet customer specific requirements
TE-OP-H Grit Classifier
TE-OP-H grit classifiers are used to separate, transport and wash grit from sediments collected in grit traps. They offer economical grit separation in a fully automated operation, depending on how the hydro-mixture pump runs and timing. Advantages are easy installation and maintenance, variable embedding, and optional delivery of mixer. Electric heating and insulation can be fitted on grit classifiers for outdoor installation.
A grit classifier consists of a sedimentation tank, screw conveyor, drive and support structure, and can also be equipped with a hydro-mixture mixer. The hydro-mixture is fed into a sedimentation tank via an inlet pipe. Gravitation enables the grit to settle at the tank bottom, where it is washed with industrial water. Once washed, a conveyer transports the grit to the desired location. Free of sand, the water drains through the overflow to the next treatment process.
Technical specifications:
| Flow-rate | 5 – 50l/s |
| Screw length | 2000 – 10,000 mm |
*Grit classifiers can be modified to meet customer specific requirements
SEWAGE SLUDGE RECEIVING STATIONS
TE-FS Sewage Sludge Receiving Stations
A sewage sludge receiving station enables wastewater to be accepted from suppliers identified with a valid registration card. Identification of the supplier opens the shut-off valve, enabling the wastewater to flow through the station. Conductivity and pH sensors, together with flow meter record data on wastewater volume and properties, are assigned to the identification card with the importer obtaining a print-out record of the material.
Manual, stair or screw type screens can be added to the station. Contaminants collected in the screens are dewatered, partially pressed and transported into the container (optional). Wastewater flows through the station for further treatment at the plant.
Automatic sampling can be also added to the station.
The electrical part of the receiving station consists of the following:
Switching cabinet
Conductivity and pH sensor
Volumetric flowmeter
Importer ID module
Electrically driven shut-off valve
Technical specifications:
| Flow-rate | up to 300 l/s |
| Material | Stainless steel |
*Receiving stations can be modified to meet customer specific requirements
CONTAINER TRANSPORT
TE-NPKP Low-Platform Rail Chassis
Low-platform rail chasses are a piece of equipment designed for container transport. The advantages of this type chassis are a lower centre of gravity, low rolling resistance, swivel around its vertical axis, and easy operation. It can be driven manually or electrically. Our low-platform rail chasses are certified compliance with the EU standard in Regulation 2006/42/EC.
Chasses are placed on roller bearings to complete the frame structure. They have conical contact surface wheels with a wheel tyre (similar to railway wheels) to avoid the chassis jamming on the railway track.
The electrically driven chassis is equipped with a flash beacon and limit switches on both sides. A signal tone sounds while the chassis is in motion. Its standby position is secured with a brake on the electric gearbox. Chassis movement is controlled from a control switchboard.
Manually drive chasses are driven by a ratchet lever. Here the standby position is secured with wedges.
The chassis can be made of stainless steel or structural steel.
The steel-structure chassis surface can be treated with high-quality coating or pyrogenic galvanisation.
Technical specifications:
| Track gauge | 600 mm – 2,000 mm |
| Load capacity | 1,000 kg – 22,000 kg |
*Rail chasses can be modified to meet customer specific requirements
AERATION AND MIXING EQUIPMENT
TRANSMIX Slow-Speed Vertical Mixers
TRANSMIX vertical mixers are suitable mainly for homogenising the hydro mixture. The mixing wheel shaft is driven by an electric motor using a gearbox. PFAUDLER mixing wheels are self-cleaning with radially bent blades. Mixer shaft bearings are designed to collect axial and radial forces from the mixing wheel without any bottom bearing required.
Multiple sealing of the output gearbox shaft minimises the risk of oil leaking into the mixing medium.
Optimally, the mixers should be placed at the centre of the tank. An anchor plate enables variable installation. Any TRANSMIX mixer can be mounted onto a rotary arm attached to the side of the tank.
INSTALLATION SITES
Municipal and industrial wastewater treatment plants
Potable water treatment plants
Industrial technology
| Electric motor output power | 0.55 – 30 kW |
| Mixing wheel diameter | 1,000 – 2,500 mm |
| Specific input power | approx. 7 W / m3 |
| Used material | as required |
Mixer structure and parameters can be adjusted to meet a specific requirement.
ADVANTAGES
High efficiency
Compact
Variable embedding
Small oil capacity
Option of using organic oils
Drive located above level
Easy to maintain
Long life
Self-cleaning mixing wheel
ACCESSORIES
Anchoring plate
Swivel arm with hoist
Anchor bolts
Frequency converter
TRANSAC Surface Aerators
These low-speed surface aerators are designed for intensive water saturation with oxygen during constant mixing of content into the tank. They are used mostly in the activation tanks found in the biological stage of wastewater treatment. These surface aerators are also suitable for increasing the oxygen balance in ponds, lagoons, etc.
Surface aerators consist of TRANSAC drive aggregates and aeration wheels. TRANSAC drive aggregates consist of an electric motor, gearbox and output shaft incl. bearing, all connected into a compact set. The location of the output gearbox shaft minimises the risk of oil leaking into the tank.
Variable connection elements enable the TRANSAC drive aggregate to be connected to different aeration wheels and also to fixed (steel or concrete walkways, steel platforms) or movable installations (floating systems).
Aerator wheels can be made of fibreglass, stainless steel or carbon steel incl. high-quality surface treatment.
INSTALLATION SITES
Wastewater treatment plants
Ponds, drain lagoons
| Electric motor output power | 1.5 – 110 kW |
| Wheel diameter | 500 – 3500 mm |
| Oxygen input | 2 – 212 kg O2 / h |
Aggregate structure and parameters can be adjusted to meet a specific requirement.
ADVANTAGES
High efficiency
Compact
Variable embedding
Small oil capacity
Option of using organic oils
Above-level located drive
Easy to maintain
Long life
Oil leaks minimised
Large pumping output power combined with mixing
ACCESSORIES
Anchoring plate
Anchor bolts
Oxygen analyser
Frequency converter
Motor trigger
Spacer to connect with different wheels
