Grain and molasses ratio calculation for ‘B’ continuous pan
In this article explain with example for B grain purity calculation with their required quantity of molasses. B continuous pan grain and molasses flow rate requirement according to the continuous pan capacity. Finally calculate B continuous pan massecuite dropping purity and its vapour requirement.
Data required for B massecuite purity calculation.
| S.No | Particulars | Brix | Purity | Specific Gravity |
| 1 | Syrup | 60 | 82 | 1.276 |
| 2 | AH molasses | 75 | 71 | 1.337 |
| 4 | Required B grain footing ( Before slurry feed) | 86 | 75 | 1.435 |
| 5 | B grain | 88 | ? | 1.435 |
| 6 | B grain batch pan capacity in metric ton(MT) | 60 | ||
| 7 | Graining Volume of the batch pan | 45 | % | |
| 8 | Grain & molasses ratio | 1 | 3 | |
| 9 | B continuous pan capacity | 30 | T/hr | |
| 10 | B massecuite Brix | 95 | ? |
Calculation part :
B Grain material purity ( For B grain taken Syrup & AH molasses as a footing material and then further fill up with AH molasses.)
| S.No | Particulars | Values | UOM | Remarks |
| 1 | Solids in B Grain | 52.8 | MT | 88 x 60 /100 |
| 2 | Volume of the pan | 41.8 | M3 | 60 / 1.435 |
| 418 | HL | 41.8 x 10 | ||
| 3 | Grain Volume | 188.153 | HL | 418 x 45 % |
| 18.82 | M3 | 188.15 /10 | ||
| 4 | Weight of the grain material | 27 | MT | 18.82 / 1.435 |
| 5 | Solids in grain material | 23.22 | MT | 27 x 86 / 100 |
| 6 | Solids from Syrup for grain material | 8.4 | MT | 8.4 x 4 / 11 |
| 7 | Solids from AH for grain material | 14.8 | MT | 23.22 – 8.4 |
| 8 | Weight from Syrup for grain material | 14.07 | MT | 8.4 x 100 / 60 |
| 9 | Weight from AH for grain material | 19.70 | MT | 19.70 x 100 / 75 |
| 10 | Volume from Syrup for grain footing material | 11.03 | M3 | C26 / 1.276 |
| 110 | HL | 11.03 x 10 | ||
| 11 | Volume from AH for grain footing material | 14.74 | M3 | 19.70 / 1.337 |
| 147 | HL | 14.74 x 10 | ||
| 12 | Solids from AH to further filling of the grain material | 29.58 | MT | 52.8 – 23.22 |
| 13 | Weight from AH to further filling of the grain material | 39.44 | MT | 29.58 x 100 / 75 |
| 14 | Volume from AH to further filling of the grain material | 29.4989 | M3 | 39.44 / 1.337 |
| 295 | HL | 29.49 x 10 | ||
| 15 | Final B grain drooping purity | 72.8 | [ (29.58 x 71) + (23.22 x 75)] / 52.8 |
B grain and AH required for B Continues pan for given grain and molasses ratio and B massecuite final dropping Purity.
| 1 | Grain Quantity | 60 | MT | |
| 2 | AH molasses quantity | 180 | MT | 60 x 3 |
| 3 | B grain solids for B m/c | 52.80 | MT | 60 x 88 / 100 |
| 4 | AH solids for B m/c | 135 | MT | 180 x 75 / 100 |
| 5 | B M/c Production for given B grain solids | 187.80 | MT | 52.80 + 135 |
| Quantity of B massecuite | 197.68 | MT | 187.80 x 100 / 95 | |
| 6 | Grain feed quantity for Continuous Pan | 9.11 | MT/hr | 60 x 30 / 197.68 |
| 6.35 | HL/hr | 9.11 / 1.435 | ||
| 7 | AH Molasses feed quantity for Continuous Pan | 27.32 | MT/hr | 9.11 x 3 |
| 204 | HL/hr | 27.32 x 10 / 1.337 | ||
| 8 | B massecuite Final purity | 71.49 | % | [ (52.80 x 75) + (135 x 71)] / 187.80 |
Steam Flow requirement for Continuous pan.
| 1 | Evaporation rate in AH | 21.05 | % | ((95 -75)/95) |
| 2 | Evaporation rate in B grain | 7.37 | % | (95 – 88)/95 |
| 6.42 | T/hr | 9.11 x 7.37% + 27.32 x 21.05% | ||
| 3 | Consider 20% extra | 7.71 | T/hr | 6.42 x 1.2 |
| Steam Flow requirement for Continuous pan | 7.71 | T/hr |
Online Calculator for grain and molasses quantity estimation for continuous pan with final dropping massecuite purity:
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4 thoughts on “B massecuite dropping purity calculation sheet | Sugar Technology”
Akash
(September 23, 2020 - 10:12 am)Imp notes
Santosh S Akale
(November 25, 2021 - 8:51 pm)Thank you so much sir this is very important itinformation for pan section
Santosh S Akale
(November 25, 2021 - 8:51 pm)Thank you so much sir this is very important itinformation for pan section
siva alluri
(January 2, 2022 - 9:00 am)welcome