WP2 - Two-level Hot Pressing

The technology of two-level hot pressing offers the highest oil yield of all technologies available. It includes a thermal treatment step in between the two presses to facilitate oil release from the cells of the seed. Heating of the seeds before pressing causes changes of cellular properties, protein transformations, and local concentrations of oil particles at the cell level. Higher temperatures also lower the viscosity of oil. These factors together significantly improve pressability.

Naturally, the WP2 technology also comes with complete engineering and other services, such as technical support, service possibilities, and accessible spare parts.

Technologies delivered by Farmet are equipped with the visualization and control system – Farmet Intelligent Control (FIC).

Technology Description

The sequence starts with a temporary container capable of supplying seeds for several hours of operation. Seeds are transported into the input heater, or a thermal stabilization unit, depending on the capacity of the press shop, before it enters the flaking mill. Here we also suggest you to enhance the procedure with a seed cleaning unit. It is also possible to supplement the technology with weighing equipment at entry, or hulling and hull separation. Pre-treated seeds enter the stack heater, where they are heated and dried up to meet conditions that optimal for pre-pressing.

The heated material is supplied into the pre-press. Resulting press cakes are carried into the second-level steam heater. Here the cakes are heated up again, releasing remaining water. The final press carries out further pressing of the oil. This oil still contains some impurities (solids) and has to be further processed with separation and filtration.

Accessories

The company Farmet offers optional accessories that will satisfy even the most demanding customers. Our delivery can be supplemented with a spectrum of funnels, conveyors, tanks, and equipment for seed pre-treatment as well as for pumping, filtration, refining and storage of oil. Nonetheless, the most convenient solutions are usually our turnkey deliveries, which are optimized from both the technical and economic perspectives, meet all your requirements and include the automatization of the entire process.

Technical Parameters

The technology of two-level hot pressing is a comprehensive solution for oilseed pressing. This technology is offered at capacities between 90 and 1,300 tons of seeds per day. The design routinely meets EU specifications; however, it can be adjusted to wiring requirements from local markets (e.g. USA, Canada, etc.).

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