Heves Megyei Tanacsi Epitoipari Vallalat

Heves Megyer Tanacsi Epitoipare Vallalat

Lajos Varga

Laszlo Kocsanyi

Ferenc Takats

Marton Kovacs

Gyorgy Kalo

Slurry to be densified by removal of water is passed into an inlet of a housing, through the housing, and out an outlet. Inside the housing are a plurality of elongated hollow filter elements, which extend in the direction of flow of the slurry. Water in the slurry passes through the walls of and into the interiors of the hollow filter elements, as the slurry flows along the lengths of the filter elements. The cross-sectional area of the flow space for the slurry, defined between the exterior surfaces of the filter elements and the interior wall of the housing, decreases as one proceeds along the lengths of the filter elements. As a result, the flow speed of the slurry does not decrease proceeding in the flow direction, but instead is maintained at least substantially constant, or is even caused to increase (accelerating flow). Accordingly, the densified slurry flowing along the exterior surfaces of the filter elements, because its flow speed is constant or even increasing instead of decreasing can wash away solid particles which would otherwise tend to accumulate on the exterior surfaces of the filter elements.

Process and equipment for the thickening of slurries

The equipment according to the present invention renders possible the continuous charge and similarly, continuous discharge in the case of two-chamber feeders considerably shorter than the original chambers, respectively, and by their operation according to a cyclic order deviating from the usual one. More precisely, the set aim is achieved according to the invention in such a way that to the pipe chambers, intermediate chambers are connected which can be connected to the pipe chamber or to the clear water basin, or to one of the two pumps (charging pump and high-pressure pump) by means of corresponding locking means. Thereby, it may be achieved that the intermediate chamber can receive the charging current arriving during the changeover loss time and thus, the delivery output of the feeder of identical dimensions and operating under identical flow conditions, will increase, the dilution of the slurry stops and the two-chamber feeder will be suitable for being used as a direct pressure intensifier of the continuously arriving slurry.

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Eger, Hungary

Lajos Varga