本发明提供一种基于闪蒸技术利用高炉渣风淬粒化颗粒余热供热的设备，属于节能技术领域。该设备包括风淬粒化余热回收装置、高温清洁水升温提质装置和深度负压多级闪蒸装置，风淬粒化余热回收装置包括拉瓦尔喷嘴阵列和自流床式换热器，高温清洁水升温体质装置包括增压泵、气水换热器和烟气出口，深度负压多级闪蒸装置连接增压器。该设备将冶金过程的高温熔渣流通过高压风淬粒化为高温颗粒，高温颗粒将热量交换给清洁水，实现余热回收。高温清洁水通过换热提质后，引入深度负压多级闪蒸装置，闪蒸出的低压蒸汽为海水淡化设备提供连续稳定的热源。本发明将高炉渣余热作为海水淡化的热源还具备较好经济性，有利于降低海水淡化设备的运行成本。

The invention provides a device for heating by utilizing the waste heat of blast furnace slag air quenching granulated particles based on flash evaporation technology, and belongs to the technical field of energy saving. The equipment includes wind quenching granulation waste heat recovery device, high temperature clean water heating upgrade device and deep negative pressure multi-stage flashing device. Wind quenching granulation waste heat recovery device includes Laval nozzle array and artesian bed heat exchanger, high temperature cleaning The water heating physique device includes a booster pump, a gas-water heat exchanger and a flue gas outlet, and the deep negative pressure multi-stage flashing device is connected to the booster. This equipment granulates the high-temperature molten slag stream of the metallurgical process into high-temperature particles through high-pressure air quenching, and the high-temperature particles exchange heat to clean water to realize waste heat recovery. After the high-temperature clean water is upgraded by heat exchange, it is introduced into a deep negative pressure multi-stage flash evaporation device, and the low pressure steam produced by the flash provides a continuous and stable heat source for the seawater desalination equipment. The present invention uses blast furnace slag waste heat as a heat source for seawater desalination and has good economy, which is beneficial to reducing the operating cost of seawater desalination equipment.