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Product news
08.06.2022  |  2308x
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Auger screws and bucket elevators in an fluff waste recycling line

Sinfimasa designed a double auger with screw conveyors and a bucket elevator for a difficult material, consisting of very different fractions.

Heterogenous material

On this occasion, our client is a waste treatment plant that needed to transport fine particles from a shredding machine. The bulk material to be transported was very heterogenous: it consisted of 60% rubber and plastics, 15% glass, soil and minerals, 10% textiles and wood, 10% paints and oxides, and 5% metals.
The material flow was 7 tonnes per hour, with a grain size of 0 to 20 mm, a density of 600 kg/m3, and a moisture content of 10 to 15%.

Closed screw conveyors

A conveyor belt was difficult to use, as spillage of material would cause an environmental problem. The solution was to design a system of closed screw conveyors that prevent the spillage of product. In addition, it also avoids manpower in the route and possible accidents with rollers and drums of a conveyor belt.

Robust and maintenance friendly

To ensure efficient extraction from the hopper that stores the material to be processed and to prevent product accumulation, Sinfimasa designed a double auger in a trough to allow inspection along the entire route and facilitate maintenance.
The auger was manufactured in HB400 anti-wear steel and a SEW geared motor was installed with sufficient power but a short rpm ratio to reduce wear and extend the conveyor’s useful life.

Oversized bucket elevator

For the elevation of the material, a bucket elevator was designed and manufactured with an anti-abrasive belt and stainless steel buckets with a filling level of 40%, just like the auger: low filling level and transport at low rpm to avoid product return and wear. Geared motor power ratings were also standardised to save on spare parts costs.

Company information

Sinfimasa
Sinfimasa
Experience and Commitment The main business of Sinfines y Maquinaria S.A. (Sinfimasa) is to understand the customer and design and manufacture conveyors according to project requirements and the specifications of the solid material to be handled. At our facilities in Guissona (Spain), we have our own engineering department with over 35 years’ experience, where we design machines that meet our customers’ technical specifications and make our commitment to their engineering project. We offer solutions for conveying and lifting bulk solids with uncompromising quality and precision, and we ensure equipment reliability in every situation in the processing plant. Safe, Robust, Reliable In our production plant we manufacture products with all types of finishes as required: pickled and passivated, electro-polished, lacquered, sandblasted and food-grade, etc. We work with different materials such as carbon steel, stainless steel and anti-wear steel. We use high quality and universally available components such as SEW gearmotors or SKF bearings. Our suppliers are also key to our success and we make a commitment to them. We have a test bench where, based on product samples from our customers, we research the best solution for the requirements of each project. We are committed to our customers and engineering companies to offer machines with guaranteed reliability. Sinfimasa has welding procedures and welders approved according to ASME Section IX (QW-484). We use an automated welding system to ensure that the entire length of the conveyors are welded evenly and are free from voids. At Sinfimasa we are rigorous and demanding, with numerous references in several countries on all five continents as our guarantee. Please ask us for more information as you require. Consult us about your project on no obligation. We will make you a reliable technical proposal that is 100% adapted to your requirements.
Last update: 18.03.2024

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