Dewatering Spent Grains

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Screw press is a vital piece of equipment used for dewatering spent grains, a byproduct of the brewing process.  It can reduce the moisture content of spent grains to below 60%, making them easier to handle, store, and transport. At Furui Machinery, our screw dewatering machine is available in various models with capacities ranging from 0.2  to 50 tons per hour. Moreover, the screw press is also suitable for various types of biomass waste, such as grape pomace, soybean residue, sawdust, green wheat, coconut shells, and more. Welcome to contact us for more details. 

Advantages of Dewatering Spent Grains

Using a screw press for dewatering spent grains offers several advantages:

1. Moisture Reduction

Spent grain usually contains 80-85% moisture. A screw press effectively reduces the moisture content in spent grains to about 60%. This process can reduce the volume and weight of waste, lowering the cost and effort needed for further processing.

2. Improved By-Product Value
  • Animal Feed: Dewatered spent grains are rich in protein and fiber, making them an excellent livestock feed. The dewatering process reduces moisture content, making the grains easier to transport and store. In addition, reducing moisture content increases the shelf life of the feed.
  • Composting: Dewatered spent grains can be composted and used as fertilizer. It is also used as a substrate for growing mushrooms. 
  • Biogas Production: Dewatered spent grains can be used in anaerobic digesters to produce biogas.
  • Dewatered spent grains can be used as a growth medium for growing mushrooms.
3. Cost-Effectiveness 

Investing in a screw press dewatering machine results in significant cost savings for breweries. Breweries can lower their transportation and disposal costs by reducing the moisture content of spent grains. Moreover, the reduced waste volume also saves on storage space and handling expenses.

4. Environmental Sustainability

Using brewery dewatering equipment contributes to environmental sustainability. By effectively extracting water from the spent grains, the liquid and solid can be processed separately. Besides, the dewatered solids will lower energy consumption in further processing (such as drying), leading to lower environmental impact.

Brewery & Distillery Dewatering Equipment

Below are the brewer's grains dewatering equipment from Furui Machinery. Welcome to contact us for more details.

Model FR-180 FR-260 FR-350 FR-420 FR-500 FR-600 FR-630 FR-700
Capacity 0.2-0.5t/h 1-1.5t/h 2-3t/h 3-5t/h 8-10t/h 12-15t/h 18-20t/h 25-30t/h
Screw diameter 180mm 260mm 350mm 420mm 500mm 600mm 630mm 700mm
Power 3kW 5.5kW 7.5kW 11-15kW 22kW 30kW 37kW 45kW
Screen diameter 260mm 340mm 450mm 520mm 600mm 720mm 750mm 830mm
Dimension(mm) 1,800*550*920 2,200*800*1,200 3,100*900*1,300 3,580*1,000*1,470 3,740*1,200*1,650 5,600*1,300*1,650 5,800*1,300*1,800 6,500*1,450*2,475
Weight 450kg 900kg 1,300kg 2,600kg 3,050kg 4,300kg 5,300kg 6,800kg

Features of Screw Press in Dewatering Spent Grains

1. High Efficiency and Energy Saving: Our screw press machine adopts mechanical pressure for dewatering, which is more efficient and energy-saving compared to other methods.

2. Simple Structure: The screw press has a relatively simple structure, making it easy to operate and maintain, thereby reducing operating costs.

3. Effective Dewatering: By adjusting the pressure and rotation speed, screw presses can achieve thorough dewatering of spent grains, resulting in a low-moisture cake that is easier to store and transport.

4. Customizable Options: Our screw press can be customized to meet your specific needs, including the screw design, screen opening size, machine material, and more. Additionally, it can be integrated with other equipment, such as a conveyor belt, to improve efficiency. 

Conclusion

With years of experience in manufacturing and supplying screw press machines, Furui Machinery has successfully assisted hundreds of clients in various dewatering projects, including dewatering of spent mash and sawdust, paper pulp, juice production, and treatment of waste fruits and vegetables. We are confident in our ability to provide you with a tailored solution that best meets your specific needs. If you have any questions, please feel free to contact us!

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Dewatering Spent Grains
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