Our product range is based on centrifugal separation machines, which are all based on a fundamental density difference.

The disk stack centrifuge removes solids from liquids or separates two liquid phases from each other by extremely high centrifugal force. Solids or liquids that are denser than the surrounding liquid move out toward the rotating bowl wall, while less dense liquids move toward the center. The special disks, known as disk stacks, increase the surface area of the settling area and thus speed up the separation process. They are arranged in a “disc stack” inside the centrifuge bowl. This vertical arrangement of conical plates is the key component of the centrifuge. As the bowl rotates, the yeast bodies and cold breaks rapidly build up on the discs and can be directed to the discharge ports.

Application

• to reduce the beer’s turbidity by separating many or most of the yeast cells from the clear beer
• to remove some yeast between the end of primary fermentation and the beginning of secondary fermentation or before lagering
• to remove fining agents if the brewery uses
• to reclaim beer from excess or spent yeast slurry
• to remove any residual cold break right before packaging
• for pre-treatment of kieselguhr filtration in the production of high yeast content beers

Main equipment components

Disc centrifuge*1 set

Buffer tank*1 set (According to process design)

Process parameters

• Feed: fermented beer containing about 20~30 million yeasts per ml.
• After separation: Yeast amount in beer about 50~2 million per ml (can be adjusted based on your desired type, taste, and visual requirements of the finished beer)
• Oxygen Control: adopting a sealed water and CO2 oxygen avoidance system, we control the oxygen increase after beer separation within a range of 5 ppb to 10 ppb
• Water seals: deoxygenated water with a pressure of 0.25~0.4 MPa (pressure adjustable), and stable flow with a range of 300 to 500 liters per hour. If this is not available, then soft water with a total hardness (in terms of CaO) below 250 mg/L may be used, and other indicators must meet the drinking water standard.
• Cleaning fluid and hot water: the recommended pressure is 0.1 to 0.2 MPa, while the flow rate should be between 500 to 1,000 L/h. If hot water is used for cleaning, it must meet the standards set for drinking water quality.
• Cooling water: pressure is between 0.1 and 0.2 MPa, flow rate is between 1 to 2 m3/h, and the temperature remains ≤ material process temperature -4°C. And meet the tap water quality requirements.
• Compressed air: pressure 0.5MPa~0.7MPa | clean, dry and free of visible corrosive impurities | Free of solid particles with a concentration less than 0.1 g/m3, particle size less than 3μm | Oil content less than 5 mg/m3 | the dew point of the moisture content must be greater than 3 degrees.
• Carbon dioxide: pressure 0.15-0.3Mpa | purity not less than 99% | moisture not more than 50ppm | gas consumption is 6-7NM3/h.

Key Features

• Automatic slag discharge: capable of discharging slag in a partial or full capacity
• We adopt the labyrinth sealing method to suppress the oxygen increase in the centrifugal process.
• Our self-designed centripetal pump system offers stable output pressure, a large adjustment range and convenient operation.
• Frequency conversion starts the power transmission process, ensuring smooth, odorless, and noiseless performance.
• The centrifuges series are equipped with a full-automated control cabinet with safety devices that enable users to adjust the centrifuge’s parameters (such as separation and slag discharge times) directly on the display screen. This allows users to achieve the optimal results for separation and slag discharge.
• The equipment is equipped with a fully automatic vibration detector to monitor the vibration intensity value of the separator at any time. In the event of a vibration exceeding the standard value, the equipment will automatically issue an alarm and shut down as a safety feature.
• The equipment is equipped with a small cyclone slag discharge device, effectively reducing noise during slag discharge during the separation process.
• The equipment and upper and lower covers are equipped with cooling jackets, which effectively control the beer warming (varying by the refrigerant), ensuring the quality of the beer. Furthermore, the cooling jackets reduce noise and improve the on-site operating environment.
• The equipment is equipped with an emergency stop switch in an accessible location, enabling immediate and direct stopping of operations in case of emergency to ensure the safety of the operator and the equipment. After troubleshooting procedure, power restoration and a manual start-up operation, full power operation will begin.
• The machine base features a integral frame and a fully enclosed design. Constructed from stainless steel 304, it integrates all pipelines, equipment, and control systems within one integrated unit, allowing for flexible installation according to site requirements.
• Interface with a CO2 gas-sealing device to prevent the generation of dissolved oxygen during the separation of beer.
• The oxygen increment after beer separation is controlled at 5ppb~10pp.