these manually , larger operations often use pneumatic expeller units , which are energy intensive . However , brewers and distillers can significantly reduce their costs by pumping these residues instead .
The low shear action is also beneficial for recovering yeast for reuse , enhancing efficiency over manual or less effective methods . At the end of the fermentation process , yeast can also be recovered for re-use ( known as harvesting ) by draining from the conical base of closed vessels ( bottom cropping ) or skimming from the surface of open vessels ( top cropping ). In both cases , the low shear characteristics of the BCF range offer advantages over alternative pumped methods or inefficient manual processes .
3 . Flavour and Colour Dosing Precise addition of flavours and colours is essential for consistent product quality . Pulsation from positive displacement pumps can disrupt even distribution , leading to quality issues . This is because once these pumps have dispensed a product , there is a pause before they can dispense again . This creates a gap in the process that can lead to uneven distribution of ingredients .
SEEPEX ’ s D range of PC dosing pumps delivers virtually pulsationfree performance , ensuring linear accuracy and consistent metering of additives . This linear accuracy , which varies with pump speed , allows easy calibration and control . Its ability to dose low flow rates means that colours , flavours and portions are consistent . These pumps can manage a wide range of viscosities and consistencies , from thin liquids to sticky substances , always ensuring precise and reliable dosing .
By transitioning to innovative PC pump solutions , brewers and distillers can enhance product quality , reduce energy consumption , and boost production capacity .
4 . Removing Spent Grains , Draff , and Hops
Spent grains , draff , and hops need efficient removal post-mashing to maintain production flow . These by-products must be quickly transferred to storage tanks or silos to allow production to continue . They are then transported for use as animal feed , as additives in bakery products , for energy generation in biogas plants or to produce biofuel . While small breweries may remove
Open hopper PC pumps with auger feed systems provide a cost effective and energy efficient solution for conveying spent grain or draff through closed pipe systems . SEEPEX ’ s Smart Air Injection ( SAI ) technology further optimises this process by combining progressive cavity pumping with pneumatic dense phase conveying , significantly reducing air consumption and energy costs . The system solution can efficiently convey 60-85 % moisture content spent grains , draff and hops in 20-30m long plugs over distances of up to several hundred metres using controlled pulses of air . Trials at a UK brewery showed potential air consumption reductions of up to 90 % for spent grains and 80 % for hops compared to the existing pneumatic expeller .
Improved Bottom Line By transitioning to innovative PC pump solutions , brewers and distillers can enhance product quality , reduce energy consumption , and boost production capacity . This optimisation helps maintain profitability despite the pressures of high energy costs , ensuring that the industry can thrive in a challenging economic landscape .
For further information , please visit www . seepex . com
Issue 70 PECM 113