CN107661984A - 钢带式还原炉还原工艺 - Google Patents

钢带式还原炉还原工艺 Download PDF

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Publication number
CN107661984A
CN107661984A CN201710787993.5A CN201710787993A CN107661984A CN 107661984 A CN107661984 A CN 107661984A CN 201710787993 A CN201710787993 A CN 201710787993A CN 107661984 A CN107661984 A CN 107661984A
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China
Prior art keywords
belt type
steel belt
reducing furnace
type reducing
furnace
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CN201710787993.5A
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English (en)
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孙颖
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Individual
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Individual
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Priority to CN201710787993.5A priority Critical patent/CN107661984A/zh
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F9/00—Making metallic powder or suspensions thereof
    • B22F9/16—Making metallic powder or suspensions thereof using chemical processes
    • B22F9/18—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds
    • B22F9/20—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from solid metal compounds
    • B22F9/22—Making metallic powder or suspensions thereof using chemical processes with reduction of metal compounds starting from solid metal compounds using gaseous reductors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F2999/00—Aspects linked to processes or compositions used in powder metallurgy

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Cleaning And De-Greasing Of Metallic Materials By Chemical Methods (AREA)

Abstract

本发明公开了一种钢带式还原炉还原工艺，利用钢带式还原炉进行还原，将氨分解气体充入钢带式还原炉中，控制使用温度900℃±1℃持续60分钟；进一步改进在于：氨分解气体中残氨含量≤10PPm，露点≤‑60℃，同时须除油、除水。采用本发明，可得到低氧、硫、碳的高压缩性能铁粉。

Description

钢带式还原炉还原工艺
技术领域
本发明涉及一种粉末冶金还原工艺，尤其涉及一种采用钢带式还原炉的粉末冶金还原工艺。
背景技术
现有粉末冶金还原工艺一般是采用钢带式还原炉进行还原，但现有钢带式还原炉还原工艺还原质量难以保证。
发明内容
本发明针对现有技术的不足，提供一种能显著提高还原质量的钢带式还原炉还原工艺。
本发明通过下述技术方案实现技术目标。
钢带式还原炉还原工艺，利用钢带式还原炉进行还原，其改进之处在于：将氨分解气体充入钢带式还原炉中，控制使用温度900℃±1℃持续60分钟。
优选地，所述氨分解气体中残氨含量≤10PPm，露点≤-60℃，同时须除油、除水。
本发明与现有技术相比，具有以下积极效果：采用本发明，可得到低氧、硫、碳的高压缩性能铁粉。
具体实施方式
下面结合实施例对本发明作进一步说明。
钢带式还原炉还原工艺，利用钢带式还原炉进行还原，将氨分解气体充入钢带式还原炉中，控制使用温度900℃±1℃持续60分钟。
氨分解气体中残氨含量≤10PPm，露点≤-60℃，同时须除油、除水。

Claims (2)

1.一种钢带式还原炉还原工艺，利用钢带式还原炉进行还原，其特征在于：将氨分解气体充入钢带式还原炉中，控制使用温度900℃±1℃持续60分钟。
2.根据权利要求1所述的钢带式还原炉还原工艺，其特征在于：所述氨分解气体中残氨含量≤10PPm，露点≤-60℃，同时须除油、除水。
CN201710787993.5A 2017-09-04 2017-09-04 钢带式还原炉还原工艺 Pending CN107661984A (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710787993.5A CN107661984A (zh) 2017-09-04 2017-09-04 钢带式还原炉还原工艺

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201710787993.5A CN107661984A (zh) 2017-09-04 2017-09-04 钢带式还原炉还原工艺

Publications (1)

Publication Number Publication Date
CN107661984A true CN107661984A (zh) 2018-02-06

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ID=61098078

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201710787993.5A Pending CN107661984A (zh) 2017-09-04 2017-09-04 钢带式还原炉还原工艺

Country Status (1)

Country Link
CN (1) CN107661984A (zh)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101380678A (zh) * 2007-09-08 2009-03-11 北票盛隆粉末冶金有限公司 生产还原铁精粉的工艺方法
CN102642027A (zh) * 2012-04-11 2012-08-22 莱芜钢铁集团有限公司 一种还原铁粉生产工艺
US20130098204A1 (en) * 2010-08-30 2013-04-25 Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) Method for producing granular metallic iron
CN104972134A (zh) * 2015-08-05 2015-10-14 河南聚鑫超硬材料有限公司 一种用于生产超细铁粉的方法
CN107008914A (zh) * 2017-04-06 2017-08-04 安徽工业大学 一种改善还原铁粉性能的还原铁粉生产工艺

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101380678A (zh) * 2007-09-08 2009-03-11 北票盛隆粉末冶金有限公司 生产还原铁精粉的工艺方法
US20130098204A1 (en) * 2010-08-30 2013-04-25 Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.) Method for producing granular metallic iron
CN102642027A (zh) * 2012-04-11 2012-08-22 莱芜钢铁集团有限公司 一种还原铁粉生产工艺
CN104972134A (zh) * 2015-08-05 2015-10-14 河南聚鑫超硬材料有限公司 一种用于生产超细铁粉的方法
CN107008914A (zh) * 2017-04-06 2017-08-04 安徽工业大学 一种改善还原铁粉性能的还原铁粉生产工艺

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Application publication date: 20180206