论文阐述了传统冰淇淋生产中存在的问题和可用于冰淇淋工业化生产的液氮快速冻结设备。分析了液氮冻结技术及其设备结构，液氮冻结在冰淇淋生产中体现的优越性。通过开发液氮冻结设备和技术，使液氮应用于冰淇淋工业化生产成为现实，从而提高冰淇淋产品质量和生产效率，降低生产过程的能耗及成本，并有助于生态环保。

The paper discussed the problems in traditional manufacture and production of ice cream. Liquid nitrogen freezing technology was then introduced, including the equipments and the advantage of this technology in ice cream production. Developments in the technology and equipments of liquid nitrogen freezing make it possible to use liquid nitrogen in the industrial production of ice cream. It can improve the quality of ice cream products, enhance the productivity, reduce the productive energy consumption and benefit to environmental protection.