不锈钢除尘灰煤基氢冶金资源化工业实验研究

王明华; 张小兵; 李彬; 雷鹏飞; 余煌鸣; 张红军

doi:10.3969/j.issn.1000-6532.2025.02.009

不锈钢除尘灰煤基氢冶金资源化工业实验研究

1.
酒泉钢铁（集团）有限责任公司　氢冶金研究院，甘肃　嘉峪关　735100

2.
兰州理工大学　省部共建有色金属先进加工与再利用国家重点实验室，甘肃　兰州　730030

基金项目: 甘肃省科技计划（20ZD7GB013）；嘉峪关市科技计划（20-01）

详细信息

作者简介: 王明华（1964-），男，高级工程师，主要从事煤基氢冶金研究等

中图分类号: TD989

收稿日期: 2022-07-14

刊出日期: 2025-04-25

Industrial Test Research on Stainless Steel Dust with Coal-based Hydrogen Metallurgy for Recycling Purpose

1.
Hydrogen Metallurgical Research Institute, Jiuquan Iron and Steel (Group) Co., Ltd., Jiayuguan 735100, Gansu, China

2.
Lanzhou University of Technology, State Key Laboratory for Advanced Processing and Reuse of Nonferrous Metals Jointly Established by the Province and the Ministry, Lanzhou 730030, Gansu, China

Received Date: 14 July 2022

Publish Date: 25 April 2025

摘要

摘要:
采用自主研发的煤基氢冶金技术和煤基氢冶金回转窑工业实验装置，系统开展了不锈钢除尘灰无害化、资源化工业实验，在氢冶金还原温度1 250 ℃、在窑时间3 h左右的条件下，取得镍、铁、铬金属化率分别为100%、91.24%和86.18%，产出所有物料均低于浸出毒性鉴别标准限值的优异结果。完成了不锈钢除尘灰煤基氢冶金过程的热力学分析。形成了以煤基氢冶金回转窑技术为核心，包含有干式冷却、干式磁选、重力跳汰分选等主要工序的不锈钢除尘灰煤基氢冶金回转窑无害化、资源化工艺包。
- 煤基氢冶金 /
- 不锈钢除尘灰 /
- 回转窑
Abstract:
The self-developed coal-based hydrogen metallurgical technology and coal-based hydrogen metallurgical rotary kiln industrial test device were used to carry out the industrial test on stainless steel dust with coal-based hydrogen metallurgy in the rotary kiln for harmless and recycling purpose. The metallization ratio of nickel, iron, and chromium are 100%, 91.24% and 86.18%, respectively, at the conditions of hydrogen metallurgical reduction temperature of 1 250 ℃ and the time in the kiln of about 3 h, and all the produced materials of which the indexes are lower than the standard limit of extraction toxicity identification. Thermodynamic analysis was carried out for coal-based hydrogen metallurgy process on stainless steel dust. It forms a harmless and recycling process package for stainless steel dust, including coal-based hydrogen metallurgical rotary kiln which is the core technology, dry cooling, dry magnetic separation, gravity jig separation and other main processes.
- Coal-based hydrogen metallurgy /
- Stainless steel dust /
- Rotary kiln

HTML全文

图 1 不锈钢除尘灰煤基氢冶金回转窑工业实验流程

Figure 1.

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图 2 金属料中Ni、Fe、Cr元素的金属化率

Figure 2.

下载: 全尺寸图片幻灯片

表 1 不锈钢除尘灰主要化学成分/%

Table 1. Main chemical components of stainless steel dust

TFe Cr₂O₃ CaO SiO₂ MgO Al₂O₃ Na₂O K₂O ZnO Ni S P C 其他

39.0 13.70 11.40 4.10 2.90 0.88 0.87 0.63 0.31 1.50 0.17 0.02 1.40 23.12

下载: 导出CSV

表 2 不锈钢除尘灰浸出毒性鉴别结果/（mg/L）

Table 2. Extraction toxicity identification results of stainless steel dust

样品危害成分浸出浓度总铬 Cr⁶⁺

危害成分浓度限值 <15 <5

不锈钢除尘灰 19.40 18.60

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表 3 广汇煤元素分析结果/%

Table 3. Elemental analysis results of Guanghui coal

C_ar H_ar O_ar N_ar S_{t, ad}

60.86 4.59 14.61 0.84 0.18

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表 4 煤基氢冶金回转窑工艺参数

Table 4. Process parameters of coal-based hydrogen metallurgy rotary kiln

项目工艺参数

高温段温度/℃ 1 250

在窑时间/h 3

投料量/ (t/h) 5.9

残炭量/ (t/h) 1.8

抛煤量/ (t/h) 0.6

下载: 导出CSV

表 5 磁性金属料化学成分/%

Table 5. Chemical composition of magnetic metallized materials

TFe MFe SiO₂ CaO MgO Al₂O₃ S P Cr₂O₃ Ni C

49.10 36.95 16.99 10.72 2.85 9.06 1.25 0.10 4.30 0.66 1.72

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表 6 非磁性金属料化学成分/%

Table 6. Chemical composition of non-magnetic metallized materials

TFe Si Al P Cr Ni

75.70 0.33 0.98 0.06 15.50 3.00

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表 7 残炭化学成分/%

Table 7. Chemical composition of carbon residues

C TFe SiO₂ CaO MgO Al₂O₃ S Cr₂O₃ Ni

87.31 4.29 2.67 2.01 0.89 1.34 0.38 1.06 0.05

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表 8 布袋除尘灰化学成分/%

Table 8. Chemical composition of bag dust

TFe SiO₂ CaO K₂O Na₂O ZnO Cr₂O₃ Ni C

8.50 2.23 4.00 16.32 14.45 11.02 3.75 0.18 1.48

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表 9 各物料浸出毒性鉴别结果/（mg/L）

Table 9. Identification results of extraction toxicity of each material

样品危害成分浸出浓度总铬 Cr⁶⁺

危害成分浓度限值 <15 <5

非磁性金属料 0.16 0.03

磁性金属料 1.21 0.62

残炭 0.52 0.05

布袋灰 0.14 0.06

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参考文献(12)

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TFe	Cr₂O₃	CaO	SiO₂	MgO	Al₂O₃	Na₂O	K₂O	ZnO	Ni	S	P	C	其他
39.0	13.70	11.40	4.10	2.90	0.88	0.87	0.63	0.31	1.50	0.17	0.02	1.40	23.12

样品危害成分浸出浓度	总铬	Cr⁶⁺
危害成分浓度限值	<15	<5
不锈钢除尘灰	19.40	18.60

项目	工艺参数
高温段温度/℃	1 250
在窑时间/h	3
投料量/ (t/h)	5.9
残炭量/ (t/h)	1.8
抛煤量/ (t/h)	0.6

C_ar	H_ar	O_ar	N_ar	S_{t, ad}
60.86	4.59	14.61	0.84	0.18

TFe	MFe	SiO₂	CaO	MgO	Al₂O₃	S	P	Cr₂O₃	Ni	C
49.10	36.95	16.99	10.72	2.85	9.06	1.25	0.10	4.30	0.66	1.72

TFe	Si	Al	P	Cr	Ni
75.70	0.33	0.98	0.06	15.50	3.00

C	TFe	SiO₂	CaO	MgO	Al₂O₃	S	Cr₂O₃	Ni
87.31	4.29	2.67	2.01	0.89	1.34	0.38	1.06	0.05

不锈钢除尘灰煤基氢冶金资源化工业实验研究

1. 酒泉钢铁（集团）有限责任公司 氢冶金研究院，甘肃 嘉峪关 735100 2. 兰州理工大学 省部共建有色金属先进加工与再利用国家重点实验室，甘肃 兰州 730030

作者简介: 王明华（1964-），男，高级工程师，主要从事煤基氢冶金研究等

Industrial Test Research on Stainless Steel Dust with Coal-based Hydrogen Metallurgy for Recycling Purpose

计量

出版历程

目录

1.
酒泉钢铁（集团）有限责任公司　氢冶金研究院，甘肃　嘉峪关　735100

2.
兰州理工大学　省部共建有色金属先进加工与再利用国家重点实验室，甘肃　兰州　730030