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Steel slag sensible heat recovery and carbon sequestration modification process
The invention discloses a steel slag sensible heat recovery and carbon sequestration modification process, which comprises the following steps that a steel slag melt is subjected to ingot casting through an ingot casting device, a cast high-temperature steel slag ingot shell is in a solid state, and an inner core is in a liquid state; the steel slag ingot enters the vertical reactor from a feeding hole in the upper part of the vertical reactor, meanwhile, metallurgical flue gas is introduced from a gas inlet pipeline at the bottom of the vertical reactor, the metallurgical flue gas exchanges heat with the high-temperature steel slag ingot in the flowing process to form high-temperature flue gas, and meanwhile, the high-temperature steel slag ingot reacts with CO2 in the flue gas to form CO2 in the high-temperature flue gas; carrying out carbon sequestration modification on the steel slag ingot to form a carbon sequestration modified steel slag block, and discharging high-temperature flue gas through a pipeline at the top of the vertical reactor; s3, the dedusted high-temperature flue gas enters a heat exchanger for heat exchange, and the flue gas is discharged from a chimney after heat exchange; the carbon sequestration modified steel slag blocks are crushed, separated and then graded for utilization, and high-added-value steel slag products are prepared. And steel slag sensible heat recovery and steel slag carbon sequestration can be performed simultaneously.
本发明公开了一种钢渣显热回收与固碳改性工艺，包括以下步骤：钢渣熔体通过铸块装置进行铸块，铸成的高温钢渣铸块外壳为固态，内芯为液态；钢渣铸块从竖式反应器上部进料口进入竖式反应器内，同时从竖式反应器的底部的进气管道引入冶金烟气，冶金烟气在流动过程中与高温钢渣铸块进行热交换，形成高温烟气，同时高温钢渣铸块与烟气中的CO2发生反应，对钢渣铸块进行固碳改性，形成固碳改性钢渣块，高温烟气经竖式反应器顶部的管道排出；S3：除尘后的高温烟气进入换热器进行换热，换热后烟气从烟囱排出；固碳改性钢渣块通过破碎、分离后分级利用，制备钢渣高附加值产品。能够同时进行钢渣显热回收和钢渣固碳。
Steel slag sensible heat recovery and carbon sequestration modification process
The invention discloses a steel slag sensible heat recovery and carbon sequestration modification process, which comprises the following steps that a steel slag melt is subjected to ingot casting through an ingot casting device, a cast high-temperature steel slag ingot shell is in a solid state, and an inner core is in a liquid state; the steel slag ingot enters the vertical reactor from a feeding hole in the upper part of the vertical reactor, meanwhile, metallurgical flue gas is introduced from a gas inlet pipeline at the bottom of the vertical reactor, the metallurgical flue gas exchanges heat with the high-temperature steel slag ingot in the flowing process to form high-temperature flue gas, and meanwhile, the high-temperature steel slag ingot reacts with CO2 in the flue gas to form CO2 in the high-temperature flue gas; carrying out carbon sequestration modification on the steel slag ingot to form a carbon sequestration modified steel slag block, and discharging high-temperature flue gas through a pipeline at the top of the vertical reactor; s3, the dedusted high-temperature flue gas enters a heat exchanger for heat exchange, and the flue gas is discharged from a chimney after heat exchange; the carbon sequestration modified steel slag blocks are crushed, separated and then graded for utilization, and high-added-value steel slag products are prepared. And steel slag sensible heat recovery and steel slag carbon sequestration can be performed simultaneously.
本发明公开了一种钢渣显热回收与固碳改性工艺，包括以下步骤：钢渣熔体通过铸块装置进行铸块，铸成的高温钢渣铸块外壳为固态，内芯为液态；钢渣铸块从竖式反应器上部进料口进入竖式反应器内，同时从竖式反应器的底部的进气管道引入冶金烟气，冶金烟气在流动过程中与高温钢渣铸块进行热交换，形成高温烟气，同时高温钢渣铸块与烟气中的CO2发生反应，对钢渣铸块进行固碳改性，形成固碳改性钢渣块，高温烟气经竖式反应器顶部的管道排出；S3：除尘后的高温烟气进入换热器进行换热，换热后烟气从烟囱排出；固碳改性钢渣块通过破碎、分离后分级利用，制备钢渣高附加值产品。能够同时进行钢渣显热回收和钢渣固碳。
Steel slag sensible heat recovery and carbon sequestration modification process
一种钢渣显热回收与固碳改性工艺
LONG HONGMING (author) / WEI RUFEI (author) / FAN CHUNLONG (author) / SUN RONG (author) / ZHANG HAO (author) / DI ZHANXIA (author)
2024-06-25
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
/
B01D
SEPARATION
,
Trennen
/
F27D
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