Vibrational filter from Pons Maquinaria
5 September 2003
Mexican machinery makers, Pons Maquinaria, have produced a stainless steel vibrating filter for screening tannery wastes. The machine separates solids from water during the initial liming operations. The vibrating movement in the filter makes the solid particles gather in a single mass. The first step in leather processing is the most polluting part of the process and is where solid waste can affect the wastewater quality. Therefore, the tanneries need to have the methods in place to prevent any solid going to the drains. Thus a vibrational filter is used to collect solids after liming and may save water consumption from 60 to 70% compared with traditional liming operations. Technical specifications: * Stainless steel mesh; its quality varies depending on the process used by the tannery * The container has a recycling conveyor for liquids retreived from the wastewater * The second (charola) conveyor retrieves all solids * It has a 5hp motor From 100% of the tanneries set up in Mexico, only 1% have a similar machine from a local or foreign brand, claim Pons. Dimensions: * 0.90cm wide x 1.20m long and 1m deep * Stainless steel mesh * Recycling pump (retrieves the water from waste mud and sends it to the drums) * Charola (receives the solids) * Operates automatically * Working life 15 to 20 years (when regularly maintained) * Stainless steel diffuser * Spring mechanism