Posts Tagged ‘slurry’

What To Consider When Selecting a Filter-Press Pump

Friday, February 2nd, 2018 von admin

Fig. 1 A typical chamber filter press being fed by a Almatec high-pressure air-operated double-diaphragm (AODD) pump

Technical paper by Peter Schüten:

High-Pressure Air-Operated Double-Diaphragm (AODD) Pumps Deliver The Operational Advantages Necessary For Optimized Operation Of Chamber Filter Presses.

In many industrial processes that feature the handling of liquids, the substances that are being transferred may occur in an aqueous or “muddy” state, with the liquid portion needing to be removed. This liquid-removal stage may take place during the production process – for example, in the filtration of edible oils or yeast solutions – but it more frequently occurs at the end of a process like wastewater treatment when the waste sludge that has formed must be withdrawn. Since the disposal of such sludges is calculated based on weight and volume, their thickening and drying is particularly lucrative for the processor. During the thickening and drying process, the sludges are treated using chemicals and/or physical processes so that the waste sludge forms into flake-like solids. After adjusting the pH level to neutral or alkaline via the use of milk of lime, the subsequent dewatering process separates the water for disposal, with the remaining volume of sludge significantly reduced.

The simplest technology for this process involves collection and thickening of the sludge through the use of gravity. However, it is significantly more effective to use technical drying methods via processes such as centrifuges and evaporators, or more commonly, chamber filter presses (Fig. 1).


Tailor-made Slurry Pumping Solutions

Thursday, November 23rd, 2017 von admin

After the took over of almost complete solid matter pump programme for abrasive and abrasive/corrosive media from the insolvent company Arthur Habermann the Aurum Pumpen GmbH has set itself the objective of improving both the design and the materials engineering of its pump series. In initial orders for a major customer, newly designed pump solutions have already been developed, implemented and built.

Because the Aurum-Habermann heavy duty pumps are true solids handling pumps in terms of impeller geometry and design, these cannot conform to the lightweight construction of a standardised pump, and are thus individually adapted to requirements. In terms of materials, Aurum supplies the Habermann heat-treated steel qualities that have proven themselves over decades.