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M.A.KHIZAR HUSSAIN & SONS
(MALACK TANNERY) RANIPET
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LEATHER DRIER WITH SOLAR HOT AIR DUCTS AT
M s/ .M.A.KHIZARHUSSAIN & SONS, RANIPET |
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Drying is commonly adopted in leather industries. Processed leather undergoes drying in mechanical drier while in some cases ambient air drying. After spraying with special colors, the leather undergoes drying using fossil fuel operated drier called as Auto Spray dryer. Steam obtained from fossil fuel operated boiler or thermic fluid boilers or electrical heaters are used to generate hot air for drying the leather.
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Drying is one of the processing step to obtain good quality leather. As the temperature required for leather drying is 70°C to 80°C only – solar heating will able to replace fossil fuel usage during sunny period. Reduction in fossil fuel consumption will increase profitability for the leather company as well as help the environment.
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Under facilitation from UNIDO, a 700m2 area roof integrated solar hot air system unit has been installed for a leading tannery to dry leather in Ranipet, Tamilnadu, India. The factory uses two imported drier where conveyer moving leather are dried by hot air of temperature around 70°C is produced by heat exchange from steam coils. Solar hot air reduces the usage of steam heating during sunny period. This unit in six months time could save 368.8 tones of firewood fuel and replaces a 1.2 tone steam boiler during its operation. A similar smaller unit of a collector area 50m2 in a tannery at Vaniyambadi, Tamilnadu, India has generated hot air of temperature above 100°C so as to save around 5 liters of diesel per hour in an auto-spray drying unit.
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M.A.KHIZAR HUSSAIN & SONS (MALACK TANNERY) RANIPET
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