MANUFACTURING PROCESS

The manufacturing of sugar begins when harvested cane is received at the mill gate, after which cane is weighed on the platform type weighbridges. This has the weight recording arrangement linked to a computer that records the gross and net weights as well as the price payable to the farmers. Cart cane gets unloaded directly into the cane carrier and tractor trolleys whereas truck cane is unloaded with the help of overhead traveling cranes. Cane is weighed using an electronic weighbridge and unloaded into cane carriers. It is then prepared for milling by knives and shredders. Sugarcane juice is then extracted by pressing the prepared cane through mills.

Each mill consists of three rollers: 1. Extracted juice mixed with water is weighed and sent to the boiling house for further processing. Residual bagasse is sent to boilers for use as fuel for steam generation 2. This juice is heated and then treated with milk of lime and sulphur dioxide. The treated juice is then further heated and sent to clarifiers for continuous settling. The settled mud is filtered by vacuum filters and filtered juice is returned to be further processed while the oliver cake is sent out 3. The clear juice is evaporated to a syrup stage, bleached by sulphur dioxide and then sent to vacuum pans for further concentration and sugar grain formation. Crystals are developed to a desired size and the crystallized mass is then dropped in the crystallizers to exhaust the mother liquor of its sugar as much as possible. This is then centrifuged for separating the crystals from molasses. The molasses is re-boiled for further crystallization. Thus, the original syrup is desugarised progressively (normally three times) till finally, a viscous liquid is obtained from which sugar can no longer be recovered economically. This liquid, which is called final molasses, is sent to the distillery for making alcohol. The sugar thus is separated from molasses in the centrifuge is dried, bagged (50 Kg and 100 Kg), weighed and sent to storage houses.Sugar is made in different sizes and accordingly classified into various grades i.e. large, medium and small.
Intricacies Involved >>
Procurement of Sugarcane Read More
Manufacturing Process Read More
By-Products of the Sugar making Process Read More
Manufacturing Results of Sugar Unit Read More
Sugar Unit Read More