HHPPM electric centrifugal pumps with axial suction for spray drier feeding

We believe that any technician with the necessity to convey liquids of any type, at the moment to choose which type of pump to adopt, has always based his choice toward a realization of a simple plant, of easy management, with few maintenance requirements, at high standard of reliability and with low costs.
The first choice, inevitably is the centrifugal pump since it fulfils all these requirements. However, this type of machine does not always satisfy particular needs as for example the resistance to abrasion or the high operating pressure. One is therefore obliged to choose other system, such as diaphragm pumps, piston pumps, and peristaltic pumps or other, which have these features but are lacking in the other ones initially mentioned above. These pumps can not be compared to the centrifugal pump for what about the simplicity.
Till now, it has been unthinkable to feed a ceramic spray drying plant if not only with a plunger pump or with a diaphragm pump.
Today, you can use a centrifugal pump. The use of special alloys, exclusive thermal treatments, the application of top quality elements and the study of profiles reached on the experience, have permits this net quality improvement. This is not a machine that needs daily management, adjustment or lubrication; this is a machine you can forget about.

Monoblock electric pumps built for high pressure, max. 35 bar, PN40 flanges, for abrasive liquids pumping, such as ceramic slip. Possibility of continuous operation. Installed on a basement to be fixed to the floor and prearranged for operations with inverter (max 3300 rpm) to supply the spray driers with the required delivery and pressure. The motor has been realized by Certech in order to obtain the maximum performance with IE2 high efficiency features. The group is supplied with inverter and fluxing station with clean water for the seal. The operation of the station requires compressed air. A pressure accumulator is installed on pump delivery and it is prearranged for pressures up to 40 bar with pressure control manometer to allow a gradual start-up of the pump and to give the consent on starting of the plant only at the required pressure. This allows a start-up after having primed the centrifuge, through a by-pass realized by the Customer that is able to discharge all the air in suction in the product changing. This start-up is programmed by a PLC, supplied by us with the pump, that is able also to manage on demand the signals of water level and seal fluxing pressure, of temperature, to engage an antifreeze cycle to avoid the water freezing (if the pump is installed on environments with sub-zero temperatures), of speed with reading of the frequency and of the power absorption supplied by the inverter, of the pump body vibration for eventual impeller unbalances. On demand, these signals can be used for pump operation control, also on remote with cable or, on demand, with the sending of analogue signals through GSM.

THE ADVANTAGES IN RESPECT TO THE TRADITIONAL PUMPS ARE OBVI- OUS. HERE ARE SOME OF THE MAIN ONES:

  • Plant simplification
  • implification in the system management
  • Drastic reduction of the maintenance costs and time
  • Continuous flow of the slip, without pulsing
  • Improvement of the granulometry of the finished product
  • Improvement of the drying conditions inside the spray drier chamber
  • Absence of running fluxing water with saving for the treatment
  • No maintenance intervention, only at periodical pre-arranged maintenance
  • No moving parts in contact with dust
  • Complete control and protection of vital parts
  • Possibility of interfacing with starting systems
  • Possibility to interfacing with system of automatic moisture control
  • Less room noise
  • Reduced management costs
  • There is not need to check, adjust and lubricate the pump daily, which is on the contrary necessary for other more complex pumps.

Performances with WATER

Type Installed power (Kw) RPM Delivery m 3 /h 10 20 30 40
l/min 165 330 500 665
HHPP 30
HHPPM 30
55 2000 Head metres H2O 60 57 54 50
2500 90 86 82 78
3000 142 140 136 130
HHPP 33
HHPPM 33
75 2000 75 73 70 67
2500 118 114 110 105
3000 168 162 158 150
HHPP 40
HHPPM 40
90 2000 98 96 93 90
2500 135 131 128 124
3000 192 189 183 170

Performances with SLIP 1,7 kg/liter

Type Installed power (Kw) RPM Delivery m 3 /h 10 20 30 40
l/min 165 330 500 665
HHPP 30
HHPPM 30
55 2000 Head metres H2O 95 90 82 70
2500 160 152 142 125
3000 215 210 200 180
HHPP 33
HHPPM 33
75 2000 115 110 100 85
2500 180 175 165 150
3000 245 238 225 205
HHPP 40
HHPPM 40
90 2000 146 141 135 120
2500 215 210 205 185
3000 295 286 275 260