The TT BrokePulper is designed to be installed under machine both in tissue and paper and board applications.
The vat dimensions, the rotor number and position and the showers location and flow rates are chosen in order to guarantee under any circumstance a reliable pulping according to paper grade, machine width and speed, using the space available in the most efficient way. The propeller group can be installed both on stainless steel and concrete vats and two units can be placed on the same vat. The rotor forces the stock to pass through the drilled plate into the collecting vat from which the discharge pump sucks, feeding the pulp back to the stock preparation system. Rotor and vat shape are designed in order to optimize the fluid dynamics thus minimizing the absorbed power. The slushing efficiency of the TT BrokePulper is so high that no deflaker is needed downstream, even when producing wet strength paper.
The TT BrokePulper is automatically controlled to have continuous operation both in trims and in sheet break circumstances by adjusting the stock level and consistency in the vat and the discharge pump flow rate. The drive system can include also a gearbox in place of the more common belts and pulleys arrangement. Existing under machine pulpers can be upgraded by retrofitting the MBP pulper rotor to meet increased process requirements.
|TT BrokePulper||Production for p&b, at fourdrinier, per single rotor||Production for p&b, at press, per single rotor||Production for p&b, at dry end per single rotor||Production for tissue per single rotor||Installed power||Standard drive system|
|MBP55||400 ton/day||150 ton/day||80 ton/day||75 ton/day||37-55 kW||Pulleys|
|MBP75||550 ton/day||240 ton/day||130 ton/day||125 ton/day||75-90 kW||Pulleys|
|MBP110||790 ton/day||350 ton/day||190 ton/day||180 ton/day||110-132 kW||Pulleys|
|MBP160||n.a.||530 ton/day||280 ton/day||n.a.||160-200 kW||Pulleys/Gearbox|
|MBP250||n.a.||840 ton/day||445 ton/day||n.a.||250-315 kW||Gearbox|