Rotary sieve

The rotary sieve is a device for sieving liquids in general in order to carry out a solid-liquid separation, its use is common in many industrial applications. Its design characteristics give it high performance, being a self-cleaning operating equipment capable of operating for long periods of time without the need for care.
These sieves can be manufactured in different diameters and lengths, according to the customer’s request and the flow to be processed, with the connections and the material discharge being variable. They can also be designed to be placed in different positions (horizontal, vertical or inclined), depending on the installation where its final assembly is planned. Optionally, and also depending on the installation, they can be supplied integrated to other machines such as a compactor conveyor.

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Designs

Machine elements

External part
It is formed by a rectangular shaped structure of variable dimensions and thickness. Inside there are two separate zones, one for more solid liquid and one for liquid only.
It can be manufactured in different materials: carbon steel, stainless steels, high resistance steels, etc. It has one or more liquid inlets and a liquid outlet with spillway plus a solid outlet.
Filter cylinder
It is the main component of the equipment, constituting the screening of the liquid. The cylinder is made up of a continuous groove mesh, forming a helical coil, with profiles of triangular section electrowelded at each point of contact with the support rods. The distance between the triangular profiles determines the clearance, the precision of the openings of the groove accurately limits the size of the particles that will be admitted through the filter surface.
The most common construction materials are stainless steels, aisi-304 stainless steel, aisi-316 stainless steel, and aisi-316L stainless steel.
Manhole cover or scan
It is used to observe the operation of the machine. This can be screwed or with quick opening for functional inspection. In any case, contact with entrapment points will be avoided by placing fixed screwed guards, in the form of a cover or a grid (considering the opening space according to the UNE EN ISO 13857 standard).
When the client wishes, they will place a stop device for opening the cover, which will avoid handling the material or the worm running.
Caps
In the upper part of the external body one or more covers are placed, normally made of the same quality of which the channel or tube is formed.
These covers allow the disassembly and assembly of the filter cylinder, as well as assemble the rolling system and multiple options.
Scraper
It is in charge of cleaning the particles deposited on the surface of the drum and leading them to the discharge tray.
The standard material, high-density polyethylene, being a material that is easy to adapt to the cylindrical surface and high resistance to wear, acts by means of pressure-adjustable springs which provide us with constant pressure at all times.
External part
It is formed by a rectangular shaped structure of variable dimensions and thickness. Inside there are two separate zones, one for more solid liquid and one for liquid only.
It can be manufactured in different materials: carbon steel, stainless steels, high resistance steels, etc. It has one or more liquid inlets and a liquid outlet with spillway plus a solid outlet.

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