New chopper pump achieves excessive effectivity with out compromising on chopping 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 subsequently increasingly reaching their limits; items get clogged up and break down.
In occasions when low lifecycle costs are playing an ever more essential role, HOMA Pumpenfabrik provides an energy efficient and dependable resolution for areas where a high delivery head is required, but at the same time, a diverse vary of solids is anticipated: the Alligator chopper pump collection. The newly developed OC impeller of the Alligator series allows effective operation via a powerful cutter system. Thanks to the use of highly sturdy chilled chrome forged iron, the primary parts that are topic to probably the most stress perform reliably even with abrasive substances corresponding to sand. HOMA might be presenting the new Alligator chopper pumps for the first time at IFAT 2022 in Munich.
Fill in the blanks are becoming more and more necessary in water and wastewater functions,” explains Konstantin Pörsch, Project Manager within the Design & Development department at HOMA Pumpenfabrik GmbH. “There is a growing demand for power saving and dependable pumps that reach excessive supply heads with great efficiency.” With its new Alligator chopper pump series, which will also be out there as an explosion-proof model, HOMA has developed a particularly efficient response to this demand.
Cutter system shreds all solids with high efficiency
“Our aim was to achieve excessive supply pressures within the medium circulate fee vary,” stories Konstantin Pörsch. Without forfeiting pump price, the improved efficiency meant that a smaller, cheaper and more vitality saving motor than in other pumps in the identical operating range was enough. To obtain this, HOMA developed a brand new cutter system that successfully shreds and removes giant quantities of diverse solids corresponding to tear-resistant hygiene wipes, plastic luggage and wood, which also get into the wastewater via surface water. The specifically designed impeller has built-in cutters and a sharp-edged radius of 10 mm to the wear and tear plate, which can additionally be equipped with its own cutter. This design permits the two central parts to work collectively to catch solids, break them down and finally remove them from the suction space via integrated grooves within the wear plate.
To enable greater efficiency without compromising on chopping performance, the blades of the impeller additionally curve strongly backwards. As a result, within the 50 Hz model, a move fee of as a lot as a 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 8 to twenty kW, a move fee of up to a hundred and forty m³/h and a delivery head of up to 82 m are attainable. The suction cover mounted on the pump housing can be used to adjust the chopping gap between the impeller and the wear plate with assistance from six set screws. “The power of our new Alligator collection, which is out there for wet properly set up as well as dry installation, is its nice effectivity and efficient cutter system, coupled with an extended service life,” provides Konstantin Pörsch.
Low lifecycle costs thanks to wear-resistant design
In order to attain not only the best possible effectivity values within the working vary required for these sorts of wastewater applications, but additionally to cut back lifecycle prices general, HOMA attaches great importance to low-maintenance operation along with effectivity. The impeller and put on plate, that are the parts subject to probably the most stress, are manufactured from extraordinarily durable chilled chrome forged iron, which withstands even abrasive substances such as sand in the pumped medium. In addition, the hydraulics had been optimally designed for the operating range using computational fluid dynamics (CFD) to increase efficiency and to remove any chance of solids building up, which can negatively influence 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 maintenance prices thanks to their excessive effectivity and wear-resistant materials,” Konstantin Pörsch sums up. “This makes them significantly suitable for waste water applications that require excessive delivery stress, but on the same time have to take care of many alternative kinds of solids.”
HOMA might be presenting the brand new Alligator chopper pump sequence for the primary time at IFAT 2022 in Munich. This and other improvements, similar to the upkeep slide with sliding motor mount, will be explained and demonstrated by the HOMA sales staff in Hall B1 at Stand 429/528.

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