Vertical screw screen

Vertical screw screen

DESCRIPTION AND WORKING PRINCIPLES

The vertical screw screens are used to pre-treat any type of wastewater, whether municipal or industrial, but especially for the use in pumping stations, to protect the pumps. Depending on the type of application, is possible to choose between the version with or without compacting zone.

The main advantages of these models of machines are mainly the low cost of initial investment and the subsequent little maintenance required.

 

MANUFACTURING FEATURES

The construction of the machine can be made by choosing between the execution in Stainless Steel AISI 304 or AISI 316. The screw can be made of Stainless Steel (choosing between AISI 304 and AISI 316) or possibly also in carbon steel. The screw is always shaftless type.

The machine is constituted by a screen basket of Stainless Steel that may be “open-type”, that is directly installed in the channel or pit, or “closedtype” that can be coupled directly with the pipe from which comes the wastewater. The screen basket is cleaned by reinforced and bolted brushes, easily replaceable once worn out. These machines guarantee excellent performance even in the presence of fibrous or particularly long products, that do not cause clogging or blocks. In the standard model are always included the washings in the screening, in the transport and in the compacting area (when present), all controlled with a manual valve. The vertical screw screens, being them with or without copacting zone, lend themselves to a large variability of customizations, to make applications highly functional, according to the application.

Vertical bar screen

Vertical bar screen
Vertical bar screen
Vertical bar screen

The vertical bar screen meets the need to have a separation of the coarse screenings from wastewater, whether civil or industrial. The standard application involves the installation inside of channels constructed in reinforced concrete, to which the machine is laterally fixed.

The machine is composed by a bearing structure made of stainless steel. The machine has a filtering surface, with a spacing which can vary from 15 to 40 mm, with which are retained the screenings which have a size greater than the spacing aperture chosen, while the filtered water is allowed to pass. The screenings are lifted, transported and discharged using combs, that are also suitable for cleaning the filtration area.

The combs are made of polyethylene mounted on special steel supports and directly fixed to a chain made of stainless steel. In the discharge area is located a scraper which has the function to discharge the screenings and consequently clean the combs. The machine runs driven by a gearmotor.

The part of the machine which comes out from the channel is protected by a stainless steel frame. The machine can be made of stainless steel AISI 304, AISI 316 or hot dip galvanized steel.

Step screen

Step screen
Step screen

DESCRIPTION AND WORKING PRINCIPLES

The step screen is a mechanically cleaned screen that is ideal for inlet works of treatment plants, pumping stations and water inlet structures. It consists of a metal frame provided with a filtration area composed by fix and mobile lamellas. The distance between fix and mobile lamellas represents the screen meshes section. The frame is installed in the channel with an inclination angle usually 55°; wastewater passes through filtration area (lamellas) and screenings are captured and lifted up by a chain. Screenings are removed from the filtartion area and discharged .

MANUFACTURING FEATURES

  • Frame: stainless steel AISI 304/316
  • Installed Power: 0.55÷2.2 KW
  • Spacing: 3÷6 mm
  • Chain: Galvanized steel-stainless steel AISI 304/316
  • Lamellas: stainless steel AISI 304/316
  • Speed: 6 m/min
  • Channel Width: from 400 mm to 2000 mm

Screw screens S-SC

Screw screens S-SC
Screw screens S-SC
Screw screens S-SC

The screw screens are used to pre-treat any type of wastewater, whether municipal or industrial. Depending on the type of application, there are two different versions: screw screen directly installed in the channel or screw screen supplied complete with tank, with liquid inlet and outlet flanges and, at request, with lateral by-pass screen. For both models, you can choose the version with or without compacting zone.

The main advantages of these models of machines are mainly the low cost of initial investment and the subsequent little maintenance required.The construction of the machine can be made by choosing between the execution in Stainless Steel AISI 304 or AISI 316. The screw can be made of Stainless Steel (choosing between AISI 304 and AISI 316) or possibly also in carbon steel. The screw is always shaftless type. The standard machine is installed in a 35° of inclination from the ground, but can be provided up to a maximum inclination of 48°. The machine is constituted by a screen basket of Stainless Steel that may have a spacing aperture from 2 to 10 mm, in the case of perforated profile, or from 0,25 up to 3 mm in the case of wedgewire profile.

The screen basket is cleaned by reinforced and bolted brushes, easily replaceable once worn out.

These machines guarantee excellent performance even in the presence of fibrous or particularly long products, that do not cause clogging or blocks. In the standard model are always included the washings in the screening, in the transport and in the compacting area (when present), all controlled with a manual valve. The screw screens, of any model, lend themselves to a large variability of customizations, to make every application highly functional.

Screw screens TS-TSC

Screw screen TS-TSC

The screw screens are used to pre-treat any type of wastewater, whether municipal or industrial. Depending on the type of application, there are two different versions: screw screen directly installed in the channel or screw screen supplied complete with tank, with liquid inlet and outlet flanges and, at request, with lateral by-pass screen. For both models, you can choose the version with or without compacting zone.

The main advantages of these models of machines are mainly the low cost of initial investment and the subsequent little maintenance required.The construction of the machine can be made by choosing between the execution in Stainless Steel AISI 304 or AISI 316. The screw can be made of Stainless Steel (choosing between AISI 304 and AISI 316) or possibly also in carbon steel. The screw is always shaftless type. The standard machine is installed in a 35° of inclination from the ground, but can be provided up to a maximum inclination of 48°. The machine is constituted by a screen basket of Stainless Steel that may have a spacing aperture from 2 to 10 mm, in the case of perforated profile, or from 0,25 up to 3 mm in the case of wedgewire profile.

The screen basket is cleaned by reinforced and bolted brushes, easily replaceable once worn out.

These machines guarantee excellent performance even in the presence of fibrous or particularly long products, that do not cause clogging or blocks. In the standard model are always included the washings in the screening, in the transport and in the compacting area (when present), all controlled with a manual valve. The screw screens, of any model, lend themselves to a large variability of customizations, to make every application highly functional.

Rotating drum screen external feeding

Rotating drum screen external feeding
Rotating drum screen external feeding

DESCRIPTION AND WORKING PRINCIPLES

X-SRD screens are used for solid/liquid separation for high flow rate and combine two operations: filtration and compacting. They feature a screen basket, perforated sheet or wedge wire, that act as a filter and rotating with the transport screw, followed by the transport section that ends with a compacting/ dewatering modulus that can be provided with a chute or a bagging system. Screenings are conveyed by a shafted screw untill the compacting/dewatering section where both the volume and the weight are reduced (up to 40%). The machine is usually placed inside a channel of suitable width, but may be placed inside a receiving tank.

 

MANUFACTURING FEATURES

  • Screw: stainless steel AISI 304/316
  • Structure: stainless steel AISI 304/316
  • Length: the total length may be varied to meet the plant lay-out specifications
  • Trough Protection: bolted stainless steel wearing bars
  • Screen Basket: perforated sheet or wedge wire
  • Screen Basket Cleaning: brushes and spray nozzles.

Motorized penstock

Motorized penstock

DESCRIPTION AND WORKING PRINCIPLES

The motorized penstocks, model X-MOTORPEN, find application in case is necessary to intercept and block a stream of water. The motorized penstocks model X-MOTORPEN may have seal on 3 or 4 sides, in 1 or 2 sense of sealing. The movement is given by the actuator place on top of the frame; operating it, the shield is raised or lowered, changing or blocking the stream of liquid. The seal is guaranteed by a system of plastic material and wedges, that by exerting a certain pressure, block the flow of water.

Manual Penstock

Manual Penstock

DESCRIPTION AND WORKING PRINCIPLES

The manual sluice gate is used as a cut-off element for channels, storage tanks, underwater holes, pipes, etc. The sluice gate is available with seals on 3 or 4 sides

MANUFACTURING FEATURES

  • Sliding frame for the shield, made of AISI 304/316 stainless steel profiles;
  • Shield in reinforced AISI 304/316 stainless steel;
  • Thrust wedges attached to the frame and shield;
  • Rising screw in AISI 304/316 stainless steel, hinged on the shield;
  • Bronze nut for the screw incorporated on the handwheel;
  • Handwheel for lifting and lowering the shield made of epoxy coated carbon steel;
  • “Musical Note type” gasket in neoprene.

Arch screen

Arch Screen2_800
Arch Screen8_800
Arch Screen-800
Arch Screen3_800
ARC SCREEN

DESCRIPTION AND WORKING PRINCIPLES

The screen with automatic arch can be installed directly in medium-small channels for coarse screening. The screened material is collected by the cleaning combs and rolls slowly through the holes. It is then raised and deposited in a container situated immediately downstream of the screen or removed on a conveyor belt. Overload protection can consist of dynamometric devices or electronic current limiters.

MANUFACTURING FEATURES

  • Frame made of press-formed or tubular profiles;
  • Screen consisting of a set of plasma cut bars of appropriate size;
  • Rotating comb arms in square or tubular configuration, mounted on the frame with UCP supports;
  • Combs in AISI 304 stainless steel or self-lubricating polyzene that clean the screen;
  • Raping blade for automatic cleaning of the combs, with rubber buffers;
  • Worm Geared motor;
  • Spacing between 15 and 50 mm.

STANDARD CONFIGURATION

Stainless steel AISI 304/316.
Also available in carbon steel.