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1.发明公开
公开(公告)号：EP4112749A1
公开(公告)日：2023-01-04
申请号：EP20921621.7
申请日：2020-12-31
发明人： XIAO, Yongli , LI, Yongqian , ZHANG, Youping , GUAN, Yunze , XIE, Mengqin , WANG, Yingjie
摘要： Disclosed are a blast furnace slag granulation and waste heat recovery and utilization device and method, the device comprising an aerosol granulation nozzle assembly, a deflector (7), a cyclone separator (8) and a waste heat recovery device. The aerosol granulation nozzle assembly comprises a slag flow controller (2), a compressed air flow control valve (3), a water volume control valve (4) and an aerosol spray gun (5). Mixed heat exchange between medium temperature gas and high temperature granular slag (6) and the solidification of the high temperature granular slag are achieved in the deflector, and the medium and high temperature gas and high temperature granular slag after heat exchange are introduced into the cyclone separator. The cyclone separator completes the separation of the medium and high temperature gas and high temperature granular slag, and transports the medium and high temperature gas and the high temperature granular slag to the waste heat recovery device. The present invention completes the granulation of blast furnace slag, and organically couples slag sensible heat recovery with sludge drying, high-temperature steam preparation, power generation and low-temperature hot water preparation, thereby recovering the waste heat of medium temperature gas and high temperature particles in the process of slag granulation and improving the efficiency of waste heat recovery and utilization.
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2.发明公开
公开(公告)号：EP3480323A1
公开(公告)日：2019-05-08
申请号：EP17818857.9
申请日：2017-03-17
发明人： LI, Yongqian , XIAO, Yongli , LIU, Yin , ZHANG, Youping , XIE, Mengqin
摘要： A roller treatment process and a treatment device suitable for a total-amount steel slag treatment. The treatment process is: firstly, a slag tank (2) with the molten slag is tightly held by a slag tank tilting mechanism and moved to a slag inlet position, the slag tank (2) is tilted to pour the molten slag with good fluidity into a rotary roller device (5) through a feeding chute (51), so that a roller treatment is achieved; secondly, when the steel slag (3) without fluidity in the slag tank (2) cannot flow out, a slag removal machine (4) is used for pushing the high-viscosity slag or the solid slag into the roller device (5); and thirdly, the slag tank (2) is reversed by a large angle tilting to make the slag at the bottom of the tank drop into the roller device (5), so that the total-amount steel slag treatment of the same roller device (5) is achieved. The treatment device comprises a feeding system, the roller device (5), a particle slag conveying and storage system (7), a tail gas emission and purification system (6), a cooling water circulation system (8), a cold steel cleaning mechanism (10) and an electric control system (9); and the feeding system comprises the slag tank tilting mechanism (1), the slag tank (2), the molten slag (3) and the slag removal machine (4).
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