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Press release
24.01.2023  |  161x
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Elevator and reversible screw conveyor for lead oxide

Sinfimasa bucket elevators and screw conveyors for lead oxide

Confined horizontal and vertical transport of lead oxide with a temperature of 110°C, a toxic and polluting material.
Lead oxide or lead dioxide is an odorless brown powder or crystal. It is used in the electrodes of lead-acid accumulator batteries and in the paint, rubber and ceramics industries.

In this success story, our client is a multinational lead-acid battery manufacturer that needed to transport and elevate lead oxide with an average temperature of 110°C for a new manufacturing line. Lead oxide is characterized by a high density and in this case, it is transported with a fine granulometry in powder form. In addition to its toxicity and polluting capacity, it requires that the machinery that transports it has an adequate sealing to avoid material leaks and an adequate dimensioning to ensure its correct operation in case of unexpected stoppages.

Lead oxide bucket elevators

To meet the requirements of the plant’s engineers, Sinfimasa designed and manufactured a belt bucket elevator taking into account the abrasion, temperature and tension requirements, so a top brand reinforced belt with anti-abrasive coating suitable for high temperatures (HI HEAT specifications) was installed. The buckets are 3 mm thick, with HB400 steel in the areas of greatest wear and stainless steel inlet and outlet openings with a mirror polished finish on the inside to improve product sliding.
For its operation, a SEW hollow shaft geared motor with 5.5 kW of power and the necessary instruments were installed to guarantee the elevator control: rotation detectors, belt deviation detector and coded magnets, among other elements. To eliminate the risk of leakage, the entire elevator was sealed by designing cable glands that could withstand temperature expansion, in addition to the installation of special gaskets to prevent lead oxide leakage, as it is a polluting and harmful product.

Screw conveyor

In the design of the lead oxide handling plant, a reversible screw conveyor was incorporated to transport the material received at the inlet in the middle of the conveyor to one side or another. This is achieved by reversing the direction of rotation of the motor and an adequate design of the equipment.
As in the elevator and due to the high toxicity of lead oxide, Sinfimasa designed this screw conveyor with a seal to completely prevent any leakage of material.
Finally, it was painted with special paint for high temperatures with the RAL colour requested by the customer.

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: 13.04.2022

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