饲料成本在畜禽生产的总成本中占有相当大的比例,约在60%￣70%。饲料成本中原料是最主要的部分,但加工成本也不容忽视。饲料加工成本很大一部分和制备饲料制粒前调质或蒸汽压片谷物等环节所需的蒸汽有关,这部分成本往往被人所忽视直至导致重大问题。本文旨在综述蒸汽制备的一些基本原理,并提出一些改善锅炉操作效率的原则。 Feed costs account for a significant proportion of the total cost of livestock production, ranging from 60% to 70%. Raw materials feed costs are the most important part, but the processing costs can not be ignored. A significant portion of feed processing costs are associated with the steam required to prepare feed pellets for conditioning or steaming cereal and other parts, which are often overlooked until they cause significant problems. This article aims to summarize some of the basic principles of steam production and to propose some principles for improving boiler operating efficiency.