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首页> 外文期刊>Clean air >DESIGN IMPROVEMENTS IN THE FURNACE OF KHANDSARI (COTTAGE SUGAR INDUSTRY) FOR AIR POLLUTION PREVENTION AND CONTROL
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DESIGN IMPROVEMENTS IN THE FURNACE OF KHANDSARI (COTTAGE SUGAR INDUSTRY) FOR AIR POLLUTION PREVENTION AND CONTROL

机译：KHANDSARI（制糖业）窑炉中空气污染预防和控制的设计改进

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摘要

The brief Khandsari sugar manufacturing process includes crushing of cane into rollers, concentration of cane juice (through boiling), crystallization, and extraction of sugar in centrifuge and drying. The bagasse has decent calorific value and is burned in a furnace to provide heat for boiling (concentration) the juice. The air pollution problem begins with the burning of bagasse in the furnace. Although the production process has undergone improvements, the combustion/furnace design and heat recovery look primitive. The present furnaces are characterized by incomplete combustion, poor heat recovery, and excessive use of bagasse. This leads to significant air pollution in terms of par-ticulate matter, including smoke/soot, carbon monoxide, oxides of nitrogen, etc. Particulate pollution is a major concern. To specifically address the issue of air pollution from Khandsari, not only control at the stack end is required, but also combustion and heat recovery processes apart from dispersion of pollutants. The observations revealed that while emission quantities may not be very large, the impact can be significant to ambient air due to small chimney and aerodynamic downwash of pollutants. This paper specifically presents the problems of incomplete combustion, poor heat recovery, and pollution generated from Khandsari industry and suggests remedial steps. Some of the improvements are already adopted by the industry, while some are under various stages of implementation.
机译：简短的Khandsari糖制造过程包括将甘蔗粉碎成辊，浓缩甘蔗汁（通过煮沸），结晶以及在离心机和干燥机中提取糖。甘蔗渣具有良好的热值，并在炉子中燃烧以提供热量来煮沸（浓缩）果汁。空气污染问题始于炉中蔗渣的燃烧。尽管生产过程已得到改进，但燃烧/炉子设计和热回收看起来很原始。当前的熔炉的特征在于燃烧不完全，热回收差以及蔗渣的过度使用。就颗粒物而言，这会导致严重的空气污染，包括烟/煤烟，一氧化碳，氮氧化物等。颗粒污染是一个主要问题。为了专门解决Khandsari造成的空气污染问题，不仅需要在烟囱末端进行控制，而且还需要进行燃烧和热回收过程（除污染物扩散外）。观测结果表明，尽管排放量可能不是很大，但由于烟囱小和污染物的空气动力学下冲作用，对环境空气的影响可能很大。本文专门介绍了不完全燃烧，热回收差以及Khandsari工业产生的污染问题，并提出了补救措施。某些改进已为业界所采用，而某些改进处于实施的各个阶段。

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