What is vacuum pan in sugar industry?

After being evaporated in a multiple-effect evaporator to a syrupy con- sistency, clarified juice must be evaporated further for the sugar to crystal- lize. This is accomplished in a vacuum pan, a vessel in which syrup is boiled under vacuum to form a heavy mixture of crystals and mother liquor, called massecuite.

How does a vacuum pan work?

a vessel equipped with a vacuum pump used for rapid evaporation by boiling a substance at a low temperature under reduced pressure.

What is a vacuum pan?

: a tank with a vacuum pump for rapid evaporation and condensation (as of sugar syrup) by boiling at a low temperature.

Why is it necessary to reduced temperature and pressure in vacuum pan during manufacture of sucrose?

All the pans operate in vacuum conditions, in order to lower the boiling point of the products being processed in them and thus prevent thermal decomposition of the sucrose (loss of sucrose).

What is the purpose of vacuum pans?

When processing jams, jellies and other concentrations (such as chicken broth), Lee Industries vacuum pans are used extensively. Under vacuum conditions, products can evaporate at lower temperatures, and avoid the damage caused by higher temperature boiling.

What is Massecuite in sugar industry?

Filters. A suspension of sugar crystals in syrup produced in a sugar factory. noun.

Does a vacuum decrease pressure?

Other things equal, lower gas pressure means higher-quality vacuum. For example, a typical vacuum cleaner produces enough suction to reduce air pressure by around 20%.

Was sugar a raw material?

For economic reasons, sucrose has never been considered as a chemical raw material. However, in the context of falling prices and surplus capacity in the sugar industry, sucrose could be used in the production of valuable chemical compounds, such as biodegradable polymers.

How do you calculate the heat surface of a pan?

Design of 80 MT capacity Batch Pan

1. Heating Surface :
2. Number of tubes.
3. Dia of the Downtake and tube plate:
4. Graining volume the batch vacuum pan.
5. Srike height:
6. Dia of the vapour dome.
7. Height of the top cone part.
8. Vapour space height (Free space above the massecuite level upto top cone )

What does Massecuite mean?

: a dense mass of sugar crystals mixed with mother liquor obtained by evaporation — compare magma sense 5.

What is Massecuite used for?

noun In the manufacture of sugar and in sugar-refining, the semi-fluid mixture of separatiug sugar crystals and residual syrup, produced by completed evaporation, from which, after cooling, the syrup is to be removed by drainage or by the use of the centrifugal machine.

How is sugar boiling done in a vacuum pan?

Vapour from vessel 1 boils the juice in vessel 2, vapour from 2 boils the juice in 3, and so on until vapour from the final vessel goes to waste. Sugar boiling is conducted under “vacuum pan” process in order to lower operating temperatures, but some small scale manufacturer of sugar “open pan” processes.

What kind of software does a sugar Pan use?

The sugar application library is a complete, consistent and comprehensive software databank of all sugar process applications, including vacuum pan, extending from beet and cane to refined sugar.

Which is the largest sugar processing company in India?

Shrijee was established in 1976 and today the company has executed more than thirty process house projects and achieved the rare distinction of manufacturing India’s largest process house (15,000 TCD).

Which is the largest supplier of continuous vacuum pan in the world?

In early 90s, Shrijee introduced the Continuous Vacuum Pan in India, and today Shrijee is one of the largest suppliers of continuous Pans in the world.