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1. 发明申请

WO2021198977A1 PLANT FOR THE TREATMENT AND RECOVERY OF WHITE SLAG RESULTING FROM STEELMAKING PROCESSES 审中-公开
公开(公告)号：WO2021198977A1
公开(公告)日：2021-10-07
申请号：PCT/IB2021/052745
申请日：2021-04-01
申请人： PERIZZOLO, Massimiliano
发明人： BUIZZA, Dario
IPC分类号： F27D9/00 , C22B7/04 , F28D11/04 , F28F5/02 , C21B3/08 , C21B2400/024 , C21B2400/052 , C21B2400/056 , F27B7/38 , F27B7/383 , F28D2021/0022 , F28D7/1607
摘要： The plant (1) for the treatment and recovery of white slag resulting from steelmaking processes, comprises: at least one basic frame (2); at least one work chamber (3), movable in rotation around a relevant axis (A) and configured to receive and treat the white slag (S), the latter being moved forward along at least one direction of treatment (D), the work chamber (3) comprising: - at least one loading portion (8) through which said white slag (S) is loaded; - at least one cooling portion (10) arranged downstream of said loading portion (8) and comprising: o at least one treatment channel (11) of said white slag (S); and o cooling means (12) comprising at least one coolant (F) to cool said white slag (S) so as to obtain at least one recovery powder (R); - at least one sorting and separation portion (13) of the recovery powder (R) arranged downstream of the cooling portion (10) with respect to the direction of treatment (D); wherein the cooling portion (10) comprises a plurality of treatment channels (11) which are separate from each other, each of which is adapted to receive a part of the white slag (S) as a result of the rotation of said work chamber (3), and wherein the cooling means (12) comprise at least one delivery channel (21) to send the coolant (F) towards the loading portion (8) counter-currently with respect to the direction of treatment (D), at least one return channel (22) which is arranged to surround the delivery channel (21) to send the coolant (F) towards the sorting and separation portion (13) parallel to the direction of treatment (D) and at least one inlet manifold (42) arranged at the point where the loading portion (8) is located and adapted to transfer the coolant (F) from the delivery channel (21) to the return channel (22).

2. 发明申请

WO2022208260A1 METHOD FOR THE COOLING AND HEAT RECOVERY FROM MATERIALS AT VERY HIGH TEMPERATURE 审中-公开
公开(公告)号：WO2022208260A1
公开(公告)日：2022-10-06
申请号：PCT/IB2022/052751
申请日：2022-03-25
申请人： CICSA S.R.L.
发明人： CAMPANARI, Stefano , CAMPANARI, Marco
IPC分类号： C04B7/47 , C04B7/36 , C21B3/08 , F28D21/00 , C04B5/00 , C21B2400/026 , C21B2400/056 , C21B2400/06 , C21B2400/08 , F28D21/0001
摘要： A method for the cooling and heat recovery from materials at very high temperature comprises at least the following steps of: - conveying material at very high temperature into a mixing system (20); - transporting the material exiting the mixing system (20) inside a continuous-flow channel (30); - carrying out a step of heat recovery from the transported material; - feeding a flow of material exiting at low temperature from the continuous-flow channel (30) to a flow dividing system (60); - recovering a part of the low-temperature material exiting the flow dividing system (60); - moving the part of recovered material at low temperature by means of a moving and recirculating system (70); and - conveying the material at low temperature for mixing it with the material at very high temperature in the mixing system (20).

3. 发明申请

WO2021260594A1 IMPROVED METHOD AND APPARATUS FOR TREATING THE MATERIAL EXITING FROM A LADLE FURNACE 审中-公开
公开(公告)号：WO2021260594A1
公开(公告)日：2021-12-30
申请号：PCT/IB2021/055566
申请日：2021-06-23
申请人： TRUYOINS S.R.L.
发明人： CARLESSO, Franco , PIZZATO, Edoardo
IPC分类号： C21B3/08 , C21B2400/022 , C21B2400/024 , C21B2400/026 , C21B2400/052 , C21B2400/056 , C21B2400/058 , C21B2400/062
摘要： Method for treating material (1) formed/found at the bottom of a ladle furnace (12), said material comprising white slag containing lime or lime-based compounds and also comprising a metal alloy, preferably steel, in the molten or semi-molten/viscous state, characterized in that said material (1) at the outlet of said ladle furnace (12) cools for a period of time less than about 30-45 minutes, preferably for less than 10-15 minutes, and even more preferably for less than 1-3 minutes.

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