MUMBAI, India, July 5 -- Intellectual Property India has published a patent application (202517057447 A) filed by Baoshan Iron & Steel Co. Ltd., Shanghai, on June 16, for 'recuperative waste heat recovery system and method for high-temperature solid slag particles.'

Inventor(s) include Xiao, Yongli; Li, Yongqian; Guan, Yunze; Wang, Yingjie; and Zhang, Youping.

The application for the patent was published on July 4, under issue no. 27/2025.

According to the abstract released by the Intellectual Property India: "A recuperative waste heat recovery system for high-temperature solid slag particles, the system comprising: a granulating device (11), the granulating device (11) preferably being a gas-quenching granulating device, a gas-water granulating device or a rotary-cup granulating device; a rolling recuperative heat exchanger (12), the rolling recuperative heat exchanger (12) comprising a slag particle inlet (1213) corresponding to a slag outlet (1112) of the granulating device (11), a slag particle outlet (1214), and a heat exchange tube group (123) located inside the recuperative heat exchanger (12), wherein the heat exchange tube group (123) has a cooling medium inlet (1211) and a cooling medium outlet (1212), and a cooling medium is preferably water; and a waste heat recovery apparatus, wherein the cooling medium inlet (1211) and the cooling medium outlet (1212) are both connected to the waste heat recovery apparatus by means of pipes. The waste heat recovery system does not use an intermediate heat transfer medium, and has the advantages of high heat-exchange efficiency and high heat-recovery efficiency."

The patent application was internationally filed on Dec. 13, 2023, under International application No.PCT/CN2023/138513.

Disclaimer: Curated by HT Syndication.