Smar Solutions for The Sugar Production. Juice Extraction Control

Transcription

1 Smar Solutions for The Sugar Production Juice Extraction Control

2 Juice Extraction Control Milling Plant Controls Cane Preparation Cane Conveyors Speed and Syncronism Knives and Shredders Protection Imbibition Control Floating of Superior Roll Pol Extraction

3 Juice Extraction Control Cane Reception and Preparation

4 Juice Extraction Control Cane Reception and Preparation Cane Weighing. Agricultural and Industrial Control Sampling. Payment System by Pol Cane Unloading and Storage. Losses Cane Washing. Feeder Tables Cane Conveyors Levellers Knives Shredders

5 Juice Extraction Control Preparing the Cane MESA ALIMENTADORA PICADOR DESFIBRADOR ELETROIMÃ SHUTE DONELLY 1 o TERNO CANA ESTEIRA METÁLICA ESTEIRA RÁPIDA Shredder

6 Juice Extraction Control Planta moledora

7 Juice Extraction Control Planta moledora

8 Juice Extraction Mills Diffuser

9 Juice Extraction Control Planta moledora The cane juice extraction for the sugar production can be done by mills or diffusers The mill tandem is composed generally of 4 to 7 mill units Each unit is a set of 3 rolls. Sometimes exists a fourth roll that executes the forced feeding Its actioning is provided by steam turbines, electric motors or hydraulic devices

10 Mills

11 Planta moledora

12 Planta moledora

13 Planta moledora

14 Planta moledora

15 Planta moledora

16 IMBIBITION The imbibition may be simple or compound The quantity of water to be added to the cane is directly proportional to the fiber content of the cane, between 200 to 250% of fiber As the value of the fiber is a difficult parameter to establish, generally is used 25 to 30% of the total weight of the cane The temperature is an important parameter. Never may exceed the 65 C degrees due to the effect of dilution of wax and dextrines There is a big commitment between the quantity of water added to the cane to improve the extraction and the energic balance of the total process

17 Imbibition COMPOUND IMBIBITION Planta moledora CANE WATER BAGASSE PRIMARY JUICE SECONDARY JUICE MIXED JUICE ROTARY SIEVE BAGASSE POWDER TO THE ROTARY FILTERS PERCOLATED JUICE BAGASSE

18 Pol Extraction The motricity of the pol extraction process is the sugar concentration difference among the broken cells and the imbibition juice Directly acting over the extraction as well, are the pressure of the mills, the temperature of the imbibition water, the fiber content, the height of the cane mattress, etc The saccharose that cannot be recovered at the mills is a direct loss. It goes to the boilers to be burned and never more can be recovered

19 Extraction by Mills Set % EXTRACTION a 6 MILLS SET

20 The Juice Extraction Operation CANE POL CONTENT IN FIBER BAGASSE MIXED JUICE POL CONTENT IN JUICE IMBIBITION WATER FIRST MILL LAST MILL

21 Efficiency of Pol Extraction. Comments For each 1% of strange matter that enters to the sugar process, it s lost 1,5 Kg of sugar by ton. of processed cane The preparation index defines the result of the preparing of the cane to be crushed. 90% is a good index For each unit of difference between the purity of the mixed juice and the purity of the primary juice it s lost 2,5 Kg of sugar by ton. of mixed juice entering at the factory The extraction at the first mill must be between 50 to 70% The humidity of the bagasse must be between 48 to 50% The pol of the bagasse at the end of the last mill must be as low as posible. 2.0 is a good value The mills area must be an aseptic place by the use of hot water, steam and chemical products

22 Results of the Automation (1) Better energic efficiency Control over the complete process Increase of the industrial efficiency Conspicuous improvement on sugar quality (color, humidity, filter easibility, etc) Reduction in losses and acquaintance of what are its causes Increase of the accomplishment with the technological standards for the sugar Better condensate recovering at the heat interchanger devices Raising of the operators technical level More easibility for the maintenance tasks: the equipment are being monitored

23 Results of the Automation (2) Possibility of establishing one operation strategy for every situation of the factory without interference among the areas Centralization of the operation. Better taking of decision process Conspicuous increase of the real information of the process Better profit of the installed facilities Increase of the operators safety Allows the integration between the process and the laboratory using the on-line analysis as a tool for the process operation Reduction in the energy consumption allowing one cogeneration strategy

24 Results of the Automation (3) Allows the installation of one Enterprise Management System, integrating the corporate and the process networks of the company Increase on the capacity of the factory by the reduction in time losses and by the increase of the industrial efficiency

25 THANK YOU!!!!!!!!