gud English Meaning:
- ‣ jaggery
- ‣ raw-sugar
- ‣ molasses
‣ the annus
What is Raw Sugar:
Raw Sugar is delivering from sugar stick or beet by standard interaction known as Defecation process. According to Peter Rein raw sugar can be characterized as “Brown sugar created in a crude sugar factory by and large bound for additional preparing to refined sugar”.
a) It is Unwashed divergent sugar with least polarization 96.5o .
b) Raw sugar encompassed by the first movie of molasses, to be additionally refined or reprocessed for making it direct utilization sugar.
Flow Chart of Raw Sugar Process
The fundamental strides in crude sugar making process:
The following innovations are utilizing the extraction of juice from sugar stick or sugar beet
In this interaction follow four or five phases (set of plants) for juice extraction in processing measure. As per that the arrangement of plants the framework is called as 5-Milling Tandem or 4-Milling Tandem.
The principle steps in crude sugar making process:
The following advancements are utilizing the extraction of juice from sugar stick or sugar beet
In this interaction follow four or five phases (set of plants) for juice extraction in processing measure. As indicated by that the arrangement of plants the framework is called as 5-Milling Tandem or 4-Milling Tandem.
In the Diffusion interaction, sugar extraction from stick or sugar beet is really affected by cracking the cell of the pre-arranged stick or beet cell and afterward washing the burst cells with heated water or low amassed juice acquired in similar process.Mills Vs Diffusers Technologies for Juice extraction frameworks in sugar industry
The measure of Defecation is used in the explanation cycle of crude sugar and furthermore Organic sugar producing industry.
After extraction of the juice from sugar stick by processing or diffuser innovation is exposed to poo process. This cycle can be defined as a kill the crude squeeze by adding of lime (include the type of Milk of lime).
a) This is the most established & least expensive strategy for juice clarification
b) In this cycle lime & heat are two fundamental agents.
c) The lime and warmth treatment frames a substantial encourage of complex composition.
d) Contains in solvent lime salts, coagulated egg whites, and differing extent of the fats, waxes and gums.
e) Phosphoric corrosive is added to expand P2O5 content of juice to 300 ppm.
f) Then lime added to kill natural acids,
d) Besides insoluble tricalcium phosphate [Ca3 (PO4) 2] is likewise framed which impedes colloids & suspended impurities.
For more data with respect to the Defication interaction kindly go through the beneath link
Concepts of Juice Defecation Process in Raw Sugar Manufacturing Process
The limed juice or deficated squeeze or treated juice is warmed up to 1020 C to 1030 C and afterward shipped off clarifier for settling & further filtration purpose.
The capacity of juice clarifier is to isolate insoluble solids in limed juice (Deficated juice), which are in “flocs” through settling and permitting the clear Juice.
The settling measure isolates the treated juices treated into two layers of clear squeeze which ascends to the top surface and mud which gathers at the lower part of the clarifer.
The various kinds of clarifier plan to carryout this partition as totally and quickly as possible. Normally settling help is added to keep up with the juice liberated from suspended matter and turbidity.
The settled mud in clarifier contains likewise having sugar so it will be extricated by using vacuum filters or decanters innovation. The extricated juice in vacuum channels is again sent back to the defication process.
The explained juice shipped off evaporator bodies to expand its strong fixation. After vanishing it is called as a syrup.
In the interaction of dissipation, the centralization of clear squeeze is conveyed out until the level of solids has reached upto 60% 70% according to the necessity. This dissipation cycle is led under an arrangement of different impact evaporators according to the perspective on energy conservation.
The concentrated juice implies syrup is exposed to measure of crystallization. In the crystallization interaction comprises of centralization of syrup and development of sugar crystal. This measure is done by vacuum pans.
Straight there massecuite bubbling plan is followed for crude sugar making must be taken to guarantee consistency and legitimate size of sugar grains. The crude sugar gems are given up by slender film of molasses and accordingly having earthy appearance.
The massecuite conveyed from vacuum skillet is dropped to cylindrical or ‘U’ formed vessel equipped with moderate speed mixing part which is called as a crystalliser.
Centrifuging and Drying
The massecuite from crystallizers is taken into centrifugals to for the unit of sugar valuable stones and molasses. The diffusive machine in which valuable stones in the massecuite are separated by using centrifugal force from the including molasses or syrup.
In raw sugar production, use little bit of washing of ” A massecuite” sugar in the Centrifugal and it is to be followed as per the output raw sugar colour requirement. After centrifuging, the raw sugar dying flowed by cooling on hopper by blowing hot and cold air. Bagging temp should be maintained near to room temperature to prevent caking of raw sugar. The raw sugar should be quickly moved to refined sugar process as far as possible or otherwise to be stored in humid proof godown.
|Specifications of Raw Sugar|
|1||POL ( min in %)||95.6|
|2||R.S. by mass ( max in %)||1|
|3||Sulphited ash % by mass (max %)||0.8|
|3||Ash % by mass ( max in %)||0.8|
|4||Safety factor ( min in %)||0.3|
|5||Crystal size ( material to be retain on 0.5mm IS sieve %)||95|
|6||Sulphur dioxide ( max in ppm)||20|
|Specifications of VHP (Very High Pol) Raw Sugar|
|1||POL ( min in %)||99.0 to 99.5|
|2||Moisture (Max in %)||0.08 to 0.15|
|3||R.S. by mass ( max in %)||0.1 to 0.12|
|4||Ash % by mass ( max in %)||0.1 to 0.13|
|5||Colour in ICUMSA||800 to 1200 IU|
|6||Starch ( max in ppm)||200 to 250|
|7||Dextran ( max in ppm)||100 to 150|