转炉钢渣资源化利用研究现状与应用展望.pdfVIP

工程科学学报，第

47

卷，第

4

期：668−681，2025

年

4

月

Chinese

Journal

of

Engineering,

Vol.

47,

No.

4:

668−681,

April

2025

/10.13374/j.issn2095-9389.2024.09.18.001;

转炉钢渣资源化利用研究现状与应用展望

刘

昕，王仲亮，包燕平✉

北京科技大学绿色低碳钢铁冶金全国重点实验室，北京

100083

✉通信作者，

E-mail:

baoyp@

摘

要

钢渣是炼钢过程中的主要固体废弃物，产量大储量多且综合利用率仅30%，造成大量资源浪费和环境破坏.

近年来

钢渣的处理和资源化利用受到广泛关注，相关技术及工艺也取得了长足发展.

钢渣理想的利用方式是回到炼钢流程中重复利

用，但由于该过程没有合适的磷元素流出途径，导致磷在整个生产流程中处于不断富集状态，难以实现钢渣的高效利用.

本文

针对转炉钢渣处理及利用现状进行了综述，分析了国内外钢渣利用率产生差距的限制性环节，系统总结了渣中磷分离与富集

的研究进展，并简述了从炼钢渣中回收磷的经济性.

在此基础上，提出钢渣热态循环全量利用技术，若将钢渣中磷分离后有效

回收，尾渣可在冶金厂内重复利用，可实现钢渣的高附加值与高效利用.

新的钢渣处理工艺及热态全量利用技术的应用，将推

动冶金工业低碳绿色化发展.

关键词

钢渣；资源化利用；全量利用；磷；磷富集与分离

分类号

X756

Resourceful

utilization

of

converter

steel

slag:

Research

status

and

application

prospects

LIUXin，WANGZhongliang，BAOYanping✉

State

Key

Laboratory

of

Advanced

Metallurgy,

University

of

Science

and

Technology

Beijing,

Beijing

100083,

China

✉Corresponding

author,

E-mail:

baoyp@

ABSTRACT

Steel

slag

is

the

main

solid

waste

in

the

steelmaking

process.

Its

comprehensive

utilization

rate

stands

only

at

30%

(China,

2023),

resulting

in

a

large

amount

of

resource

waste

and

serious

damage

to

the

ecological

environment.

The

optimal

utilization

of

steel

slag

lies

in

reusing

it

in

the

steelmaking

process.

However,

this

process

does

not

have

any

suitable

phosphorus

outflow

pathway,

resulting

in

continuous

phosphorus

enrichment

throughout

the

production

process,

hence

hindering

the

efficient

utilization

of

steel

slag.

Phosphorus,

a

nonrenewable

resource

vital

to

agriculture

and

industry,

is

a

suitable

secondary

resource

in

steel

slag.

Phosphorus

obtained

upon

separation

from

steel

slag

can

be

utilized

in

the

phosphorus

chemical

industry,

and

the

tailings

can

be

reused

in

metallurgical

plants.

This

study

reviews

the

following:

(1)

sources

and

properties

(physical

and

chemical

properties)

of

steel

slag;

(2)

current

status

of

steel

slag

treatment

and

utilization

at

home

and

abroad;

(3)

phosphorus

enrichment

and

separa