New chopper pump achieves excessive efficiency without compromising on chopping efficiency

Problematic solids similar to sanitary towels, plastic baggage, textiles and wood are being discovered increasingly typically in wastewater. Pumping and sewage treatment vegetation are therefore more and more reaching their limits; items get clogged up and break down.
In occasions when low lifecycle prices are enjoying an ever more essential position, HOMA Pumpenfabrik offers an vitality efficient and dependable answer for areas where a high delivery head is required, but at the same time, a diverse range of solids is predicted: the Alligator chopper pump series. The newly developed OC impeller of the Alligator sequence allows efficient operation through a robust cutter system. Thanks to the use of extremely sturdy chilled chrome forged iron, the main parts which may be topic to the most stress carry out reliably even with abrasive substances similar to sand. HOMA might be presenting the new Alligator chopper pumps for the first time at IFAT 2022 in Munich.
“The lowest possible lifecycle prices are becoming increasingly essential in water and wastewater applications,” explains Konstantin Pörsch, Project Manager in the Design & Development department at HOMA Pumpenfabrik GmbH. “There is a growing demand for energy saving and reliable pumps that attain high delivery heads with nice effectivity.” With its new Alligator chopper pump series, which may even be out there as an explosion-proof version, HOMA has developed a very environment friendly response to this demand.
Cutter system shreds all solids with high efficiency
“Our aim was to realize excessive supply pressures in the medium circulate rate vary,” reviews Konstantin Pörsch. Without forfeiting Money , the improved efficiency 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 brand new cutter system that effectively shreds and removes large quantities of numerous solids such as tear-resistant hygiene wipes, plastic bags and wood, which also get into the wastewater via surface water. The specifically designed impeller has integrated cutters and a sharp-edged radius of 10 mm to the wear plate, which can be outfitted with its personal cutter. This design permits the 2 central parts to work together to catch solids, break them down and in the end take away them from the suction space by way of integrated grooves within the wear plate.
To enable higher efficiency without compromising on cutting efficiency, the blades of the impeller also curve strongly backwards. As a result, in the 50 Hz version, a flow rate of up to one hundred thirty m³/h and a supply head of up to fifty seven m can be achieved with power consumption of 5 to 12 kW. In the 60 Hz model, with power consumption of eight to twenty kW, a move fee of up to 140 m³/h and a delivery head of as much as 82 m are possible. The suction cowl mounted on the pump housing can also be used to adjust the cutting hole between the impeller and the damage plate with the assist of six set screws. “The strength of our new Alligator sequence, which is available for wet properly set up as properly as dry installation, is its nice effectivity and efficient cutter system, coupled with a protracted service life,” provides Konstantin Pörsch.
Low lifecycle costs thanks to wear-resistant design
In order to attain not only the best possible efficiency values within the operating range required for these sorts of wastewater functions, but in addition to cut back lifecycle prices general, HOMA attaches great importance to low-maintenance operation in addition to efficiency. The impeller and wear plate, that are the parts topic to the most stress, are made from extraordinarily durable chilled chrome cast iron, which withstands even abrasive substances similar to sand in the pumped medium. In addition, the hydraulics had been optimally designed for the operating vary using computational fluid dynamics (CFD) to extend efficiency and to eliminate any chance of solids increase, which may negatively impression performance and result in expensive pump failures. “With the newly developed cutter system, the Alligator pumps can effectively break down all solids within the waste water and transport them away, saving both power and upkeep costs because of their excessive efficiency and wear-resistant supplies,” Konstantin Pörsch sums up. “This makes them notably suitable for waste water functions that require excessive supply pressure, however at the identical time should cope with many alternative kinds of solids.”
HOMA shall be presenting the model new Alligator chopper pump collection for the primary time at IFAT 2022 in Munich. This and different innovations, similar to the maintenance slide with sliding motor mount, will be explained and demonstrated by the HOMA sales group in Hall B1 at Stand 429/528.

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