New chopper pump achieves high effectivity without compromising on slicing efficiency

Problematic solids corresponding to sanitary towels, plastic luggage, textiles and wood are being discovered increasingly more often in wastewater. Pumping and sewage therapy plants are due to this fact increasingly reaching their limits; units get clogged up and break down.
In instances when low lifecycle costs are taking part in an ever extra necessary role, HOMA Pumpenfabrik presents an energy environment friendly and dependable answer for areas the place a excessive supply head is required, however at the same time, a diverse range of solids is expected: the Alligator chopper pump series. The newly developed OC impeller of the Alligator collection enables efficient operation via a strong cutter system. Thanks to the use of highly sturdy chilled chrome forged iron, the principle elements which would possibly be topic to probably the most stress perform reliably even with abrasive substances similar to sand. HOMA shall be presenting the brand new Alligator chopper pumps for the first time at IFAT 2022 in Munich.
“The lowest potential lifecycle costs are becoming more and more necessary in water and wastewater applications,” explains Konstantin Pörsch, Project Manager within the Design & Development division at HOMA Pumpenfabrik GmbH. “There is a growing demand for vitality saving and dependable pumps that attain excessive delivery heads with nice effectivity.” With its new Alligator chopper pump collection, which will also be out there as an explosion-proof model, HOMA has developed a very efficient response to this demand.
Cutter system shreds all solids with high efficiency
“Our aim was to achieve high delivery pressures in the medium move price range,” reviews Konstantin Pörsch. Without forfeiting pump fee, the improved effectivity meant that a smaller, cheaper and extra power saving motor than in other pumps in the identical operating vary was adequate. To obtain this, HOMA developed a model new cutter system that effectively shreds and removes giant quantities of diverse solids corresponding to tear-resistant hygiene wipes, plastic bags and wooden, which additionally get into the wastewater by way of floor water. The specifically designed impeller has built-in cutters and a sharp-edged radius of 10 mm to the damage plate, which can be geared up with its own cutter. This design allows the two central elements to work collectively to catch solids, break them down and ultimately take away them from the suction space through built-in grooves within the wear plate.
To enable greater efficiency without compromising on chopping efficiency, the blades of the impeller additionally curve strongly backwards. As a outcome, in the 50 Hz version, a move fee of up to 130 m³/h and a supply head of as much as fifty seven m may be achieved with power consumption of 5 to 12 kW. In the 60 Hz model, with power consumption of 8 to twenty kW, a circulate price of as a lot as 140 m³/h and a delivery head of up to 82 m are possible. Trade secret mounted on the pump housing may also be used to adjust the slicing hole between the impeller and the wear and tear plate with the aid of six set screws. “The strength of our new Alligator collection, which is available for wet properly installation in addition to dry set up, is its nice effectivity and effective cutter system, coupled with a protracted service life,” adds Konstantin Pörsch.
Low lifecycle costs thanks to wear-resistant design
In order to achieve not only the absolute best effectivity values in the operating vary required for these sorts of wastewater applications, but in addition to cut back lifecycle costs overall, HOMA attaches nice significance to low-maintenance operation along with efficiency. The impeller and wear plate, that are the components topic to probably the most stress, are made from extremely sturdy chilled chrome forged iron, which withstands even abrasive substances similar to sand within the pumped medium. In addition, the hydraulics were optimally designed for the working range utilizing computational fluid dynamics (CFD) to extend effectivity and to get rid of any possibility of solids increase, which might negatively impression performance and result in expensive pump failures. “With the newly developed cutter system, the Alligator pumps can successfully break down all solids in the waste water and transport them away, saving each energy and upkeep prices thanks to their high efficiency and wear-resistant materials,” Konstantin Pörsch sums up. “This makes them notably suitable for waste water purposes that require excessive delivery pressure, however at the same time should deal with many alternative sorts of solids.”
HOMA might be presenting the model new Alligator chopper pump sequence for the primary time at IFAT 2022 in Munich. This and other improvements, corresponding to the maintenance slide with sliding motor mount, might be explained and demonstrated by the HOMA sales team in Hall B1 at Stand 429/528.

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