Potato Flakes
Description of the system
Potato flakes are made by mashing cooked potatoes, followed by drying on a steam heated surface of a drum dryer. The process begins with washing of the potatoes and separation of stones, followed by steam peeling and, if necessary, by manual trimming on an inspection table. A dosing system feeds the peeled potatoes to the cutting machines, that cut them into thick slices.
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Separated material from a french fries pro-cessing line can be added to the cutted slices before the slices are pre-cooked and cooled. Cooking takes place in a screw-type cooker, which is uniformly fed through a dosing system and the cooked material is then mashed in a down-stream mashing screw conveyor. Additives such as monoglyceride can be applied in the conveyor system.
Features
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The drum dryer forms a film of the dried mash. The unit consists of an internal steam heated drying drum and of a non-heated surface treated applicator rolls. In the applicator roll there are contact zones, where the potato mash is transferred to the heated drying drum to form a thin layer. This layer of potato mash will increase in thickness from one applicator roll to the next. This layer dries completely as the drum rotates and eventually comes off by itself or with the aid of a scraper knife.
Any non-cooked potato fragments as well as eyes and peelings are not transferred to the drum, but remain in the rotating layer on the applicator rolls. This layer is separated at specific intervals and transferred to the lowermost applicator roll were the material is rich in unacceptable waste.
A screw conveyor collects the film coming off the dryer drum and feeds it to a pre-breaker which crushes the film into coars parts which are prepared for the flakes breaking process. The flakes breaker breaks the material to the required flakes size.
The specification of the BMA dryer series considers such important aspects as user friendliness, accessibility, maintenance and servicing, cleaning and hygiene, energy utilization and minimization, in addition to functional and performance characteristics |
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Performance figures BMA Drum Dryer
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Based on: DMC cooked potatoes 20 %, including 1% of additives
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Click on the link to download the leaflet about Potato Flakes.