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Increase Profit and Reduce Product Loss, Sugar Mill

The demand for sugar continues to rise faster than supply and the shortage has created a demand that requires sugar producers to be more efficient. The losses in the production process can be significant and require waste treatment downstream.

Heavy losses of sugar in production

With rising energy costs and sugar prices around the world, the Sugar Industry continues to seek innovative solutions to minimize product loss and increase process efficiency in order to become more profitable.

Installing modern DH Series Mist Eliminators

A Munters customer in the Sugar Industry in US uses two (2) Pre Evaporators and Two (2) Evaporator trains with a total of eight (8) Evaporators and seven (7) Pans. The evaporators are used to evaporate the water from the squeezed sugar cane to reduce the liquid content. This plant was experiencing heavy losses of sugar to the barometric condenser which is used to flash cool the steam back to a liquid state for disposal. Munters in conjunction with the customer engineering team worked together to look at the present evaporators with various installed types of mist eliminators to find better solutions and a way to capture the lost sugar. After a full inspection of all the units it was determined the best way to enhance sugar capture would be to remove any older, less efficient styled mist eliminators (also known as catchalls) and install a Munters Mist Elimination system. After a trial period it was determined that the mist eliminators were increasing the sugar capture by more than two times!

Due to large amounts of energy that is required to operate an evaporator train, the loss of sugar equates to a significant loss of profits. Fuel consumption and treatment of discharged materials using caustic contributes to these high profit losses. With an efficient Mist Elimination system there will be less fouling of the mist eliminators and greater recovery of sugar. Also, relative lower pressure drop across the evaporator contributes to improved output and saves the mill money.

Sugar refining, whether from beet or cane, also highlights the problem of viscosity. Concentration of product in the evaporation process requires efficient mist eliminator vane design to capture and return the product efficiently without clogging.

For the customer in US, it was determined that a complete framed mist elimination system would be provided by Munters with equipment being manufactured in their Fort Myers, Florida facility. The framing components were shipped to the Sugar mill where plant personal assembled and welded the parts into full face units that were installed on the outlet of the evaporator. They also installed sight glasses on the drains of each mist eliminator to view the sugar capture. The results are “amazing”, says the customer. Munters has worked with various OEMs (Original Equipment Manufacturers) in the industry and has also worked directly with the end users.

Quick facts

  • Efficient recovery minimizing sugar loss
  • Predictable performance
  • No clogging design of the mist eliminator

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