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CN201459166U - 一种高炉进风直吹管 - Google Patents

一种高炉进风直吹管 Download PDF

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Publication number
CN201459166U
CN201459166U CN2009201037277U CN200920103727U CN201459166U CN 201459166 U CN201459166 U CN 201459166U CN 2009201037277 U CN2009201037277 U CN 2009201037277U CN 200920103727 U CN200920103727 U CN 200920103727U CN 201459166 U CN201459166 U CN 201459166U
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China
Prior art keywords
pipe
blast furnace
coal dust
belly
air intake
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Expired - Fee Related
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CN2009201037277U
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English (en)
Inventor
王庆丰
刘西斌
朱惠红
范兆光
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Shijiazhuang Juli Technology Co ltd
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Shijiazhuang Juli Technology Co ltd
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Abstract

本实用新型公开了一种高炉进风直吹管,包括煤粉喷管(1)、热风管(2)、耐火层(3)和套管(4),煤粉喷管(1)内的管道和热风管(2)相接通,在套管(4)的圆周上设置为多个煤粉喷管(1)。本实用新型将喷煤比提高,使冶炼效率大幅度提高,实现炼铁系统结构节能的效果。

Description

一种高炉进风直吹管
技术领域
本实用新型涉及一种炼铁高炉进风装置中的直吹管,属于高炉炼铁设备领域。
背景技术
在高炉炼铁过程中,需要将热风炉中产生的高温热风送到高炉中,而高炉进风装置就是专门设置的进风通道装置,直吹管属进风装置的一部分。
目前,国内送风装置中直吹管煤粉枪插管只有一根,存在着喷煤比低的问题,并且也造成了热风的浪费。
实用新型内容
本实用新型需要解决的技术问题是提供一种提高喷煤比的直吹管。
为解决上述技术问题,本实用新型所采取的技术方案是:
一种高炉进风直吹管,包括煤粉喷管、热风管,煤粉喷管内的管道和热风管相接通,在套管的圆周上设置为多个煤粉喷管。
作为本实用新型的改进,所述煤粉喷管设置为两个。
作为本实用新型的进一步改进,所述两个煤粉喷管之间的夹角为22度。
由于采用了上述技术方案,本实用新型所取得的技术进步在于:
在送风过程中,可以用多根(两根)喷煤枪进行喷煤粉,将喷煤比提高,使冶炼效率大幅度提高,多喷1t煤粉代替焦炭,还可以获利500元左右,多喷煤还可以实现炼铁系统结构节能的效果,目前,国内各炼铁厂的喷煤工序能耗为20-35kg/t,多喷1t煤粉,就可以减少炼铁系统100kg/t左右的能耗,由此可见,提高喷煤比的经济效益,为钢铁企业降低了成本,节约了焦炭,带来了可观的经济效益。
附图说明
图1是现有直吹管的结构简图;
图2是本实用新型直吹管的结构简图。
其中:1、煤粉喷管;2、热风管;3、耐火层;4、套管。
具体实施方式
下面结合附图对本实用新型做进一步详细说明:
图1中,现有的直吹管通常包括煤粉喷管1、热风管2、耐火层3和套管4。套管4内圆周上粘附有耐火层3,中空部分为热风管2,热风管2的一端接热风围管,另一端接高炉,用于给高炉供热风。煤粉喷管1内的管道与热风管2接通,用于喷煤粉。
图2中,在套管4的圆周上设置了2个煤粉喷管1,煤粉喷管1内的管道与热风管2接通,2个煤粉喷管1的夹角为22度。
工作时,热风管2向高炉内喷射高温热风,同时,2个煤粉喷管1内的管道向热风管2内喷射煤粉,使得煤粉与高温气体结合,在高炉内充分燃烧,从而进行钢铁的冶炼.

Claims (3)

1.一种高炉进风直吹管,包括煤粉喷管(1)、热风管(2)、耐火层(3)和套管(4),煤粉喷管(1)内的管道和热风管(2)相接通,其特征在于:在套管(4)的圆周上设置为多个煤粉喷管(1)。
2.根据权利要求1所述的一种高炉进风直吹管,其特征在于:所述煤粉喷管(1)设置为两个。
3.根据权利要求2所述的一种高炉进风直吹管,其特征在于:所述两个煤粉喷管(1)之间的夹角为22度。
CN2009201037277U 2009-07-16 2009-07-16 一种高炉进风直吹管 Expired - Fee Related CN201459166U (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
CN2009201037277U CN201459166U (zh) 2009-07-16 2009-07-16 一种高炉进风直吹管

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102559968A (zh) * 2010-12-14 2012-07-11 李春光 具有双枪的高炉直吹管
CN102758033A (zh) * 2012-07-04 2012-10-31 山东轻工业学院 废旧塑料热解气预混煤粉喷吹用喷枪及喷吹方法

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102559968A (zh) * 2010-12-14 2012-07-11 李春光 具有双枪的高炉直吹管
CN102758033A (zh) * 2012-07-04 2012-10-31 山东轻工业学院 废旧塑料热解气预混煤粉喷吹用喷枪及喷吹方法

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