Screw transporter ScrewTech®Nw 80

Efficient and robust transporter for all types of solids.

† Flexible design adapted to meet each individual project’s needs (horizontal or inclined).

† Transporting channel with hexagonal or circular section.

† Protection lids with drip-free design.

† Opening security system integrated.

† Designed with flexible floor supports (allowing inclination to be adjusted max 5º).

† Versatile driving head design (simplifies maintenance)

† “Low cost”.

DESIGN & APPLICATION:

In the industrial and wastewater sectors all retained and extracted solids (which undergo filtering processes with our equipment: SolidTech®Nw30 / ArqTech®Nw50&51&55 /FineTech®Nw60/) have to be transported to containers or to additional equipment for the removal of further waste.

In order to transport the solids we have designed our ScrewTech®Nw80. The solids which have been extracted from the channels, via reception guiding chutes, are deposited in the screw transporter. The screw starts up once it receives a signal from the filtering unit, by means of a timer on the control panel, in which the client establishes a time (we recommend between 2 and 3 minutes according to length and turning speed of the screw). This way the screw continues turning and we can guarantee complete expulsion of the existing solids in the channel. Once the recommended time has passed the screw stops and this way we avoid waste accumulating and solidifying in the transporting bed, which could later on produce serious breakdowns. We also avoid odour issues.

In our wide range of machinery you can find the most adequate piece of equipment for your technical needs according to the volume of solids to be transported (standard screw diameters of Ø160mm/ Ø215mm/ Ø280mm/ Ø315mm / Ø365mm / Ø420mm. We can also offer other diameters on demand).

The equipment’s frame can be manufactured in different quality stainless steel, following the PREN Corrosion (Pitting Resistance Equivalent Number) and according to our client’s requests. Once manufacturing is concluded we apply a pickling process by means of an acid bath. The endless screw can be manufactured in Carbon Steel ST.52 (UNE F-1515) or in Stainless Steel, AISI-304/316.

2 processes are carried out with this equipment:

Process 1: The equipment receives the solids from the filtering unit via the standard collection chutes. The number of chutes in the equipment varies according to the number of filtering units which discharge there. The chutes can be supplied with odour free fixings on demand.

Process 2: Transportation of the solids to the discharge mouth which is found at one of the ends of the channel and where they are expelled. The screw normally turns clockwise.

The main components are: Transporting channel / receiving solids hopper / solids discharge mouth / water drainage in channel / anti wear and tear wedge / endless screw / screw driving axis / versatile driving head/ leaning supports or civil works fixings / channel protection lids.

For equipment with larger diameters Ø380 / Ø420 we recommend the installation of a soft-start device in the control panel so that start up is smooth and progressive, and this way we can preserve all components and reduce any possibility of breakages in any mechanism due to high tension on start up.

Our equipment has a safety or protection system integrated in all the inspection lids. This element is of utmost importance in order to be able to fulfil standards 2006/42/CE from European Parliament and the del Consejo de  17 de mayo de 2006, relativa a las máquinas y por la que se modifica la Directiva 95/16/CE, which establishes that all members of the European Union are obliged to adopt standards in order to ensure technical safety for the machinery.

A safety element is OPTIONAL but we recommend our clients to incorporate this type of electronic device in the control panel which we can supply on demand. This way we can control various parameters and this device can be triggered off when abnormal activity is detected in the process and therefore we can avoid any further problems if in the case of a blockage.