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From #ThrowBackThursday, let's talk beer! We are going to take you back to a time when our CENTRI-SIFTER™ Centrifugal Dewatering Screener saved the Alaskan Brewery Company a ton of capital. If you don’t already know this, beer making begins with cooking grains. Between batches, the brew vessels must be cleaned. At the time, the Alaskan Brewery Company had a problem with the bigger grain kernels settling down densely into the bottom of the tank, going down the drain into the wastewater system, bonding with the sludge, and jamming the pump. Here is what we put into our machine, and how we solved the problem: https://goo.gl/1uKwhV #TBT #AKBeerweek #ClientLove https://www.linkedin.com/company/kason-corporation/
KASON CORPORATION 67-71 East Willow Street Millburn, NJ 07041 Tel: 973-467-8140, ext 211 Fax: 973-258-9533 Website: http://www.Kason.com E-Mail: JLing@Kason.com Model MO-SS Centri-Sifter in 8 Feathers Distillery The best equipment to remove spent grains from their distillery’s discharge stream was found by 8 Feathers Distillery to be Kason Corporation’s Centri-Sifter. Substantially less expensive than alternatives from other manufacturers, the solution simplified equipment needs. Once grain is fermented or distilled, it requires disposal by a means acceptable to the local community. Craft distilleries, often located within a Publicly Owned Treatment Works (POTW) service area, require strict limits on solids discharged in the waste stream. Since many craft whiskey distilleries use hammer mills to grind grains, the resulting byproduct is too fine to allow lautering as the grain removal method, so an aggressive process like the Centri-Sifter must be used. When originally presented with 8 Feathers process challenge, Kason Corporation offered the MOS Centri-Sifter with a heavy duty screen as the best separation option – though possible to accomplish with a traditional Vibroscreen, the Centri-Sifter allows higher flow rates while also producing a discharge of spent grain with less remaining free water. After sending a sample of the material to be separated, Kason Corporation conducted a free process test and suggested a screen mesh and paddle design to separate material and minimize the risk of screen blinding. For a small distillery facing these restrictions, the challenge to economically remove spent grains becomes limited and daunting. Trucking of stillage discharge is cost prohibitive with high water content so producers seek solutions to separate grain from liquid for efficient disposal. Before choosing Kason Corporation’s Centri-Sifter, other separation methods identified included passive settling systems, chemical flocculation, or mechanical separation. Among mechanical separation options considered were filter presses, screw presses, and centrifugal separators. Initial studies indicated all these as viable choices where presses are the most expensive and centrifugal sifters are the most cost effective solutions. 8 Feathers Distillery studied these options and concluded that mechanical separation using Kason Corporation’s Centri-Sifter offered the best combination of cost, function and efficiency. Though settling tanks provide effective separation, the process requires multiple holding tanks with excessive time and space requirements. Use of chemical flocculation renders the spent grains unfit for use as animal feed – instead they become solid waste which must be disposed of in landfills. A filter press sized to meet distillery needs requires a large compressor to drive air diaphragm pumps. Without adding some form of solids coagulant to the process stream, the filter cloths require extensive cleaning after each use. The chemicals which enhance the solids collection render the collected grains unacceptable for use as animal feed. These additional equipment and chemical needs make filter presses, though effective, the most expensive option. Screw presses are appropriate for general industrial use but lack features to clean adequately for a distillery. No press fit within budget, flowrate and footprint constraints of 8 Feathers. While mechanical separation is the best solids removal method, Kason Corporation’s Centri Sifter minimizes cost, time, space, and environmental impacts best within the types considered. After purchase and prior to installation, Kason Corporation supplied mechanical drawings to allow 8 Feathers to construct the necessary platform to house the Centri-sifter. Once the unit arrived it was installed without issue and began initial testing immediately. The results were as good, or better, than expected. The unit processed a 1500 gallon, 40% solid test sample fed at 40gpm, without any screen blinding or degradation of performance. The separated grain was suitably dry for transport by truck. Now, the MOS Centri Sifter provided by Kason Corporation is in production at 8 Feathers Distillery and provides a key function in POTW compliance while still allowing captured solids to be used for animal feed in an efficient and cost effective grain separation solution. Links to Videos: Kason at 8 Feathers - Video 1 Kason at 8 Feathers - Video 2 Kason at 8 Feathers - Video 3 Kason at 8 Feathers - Video 4 Kason Centri-Sifter in 8 Feathers Distillery.pdf
Many people on this forum have expressed an interest in centrifugal sifters for the dewatering applications that are common in the distilling industry. Kason Centri-Sifters work very well for these applications. Kason will be exhibiting our Centri-Sifters at the upcoming International Powder & Bulk Solids Show at the Donald E. Stephens Convention Center in Rosemont, Illinois. The show runs May 3rd through 5th. This is a great opportunity to see the equipment in person. My application engineering colleagues and I will be available to answer questions and discuss your individual needs as well. I have free passes to the show available for those who are interested. Please send me a message/email or give me a call if you are interested in attending. Please visit us at Booth #2107. Mike Hart Application Engineer Kason Corporation 973-467-8140 ext. 129 email@example.com