CN102417942A - 一种高炉炼铁虹吸出铁装置 - Google Patents

一种高炉炼铁虹吸出铁装置 Download PDF

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CN102417942A
CN102417942A CN2010102928115A CN201010292811A CN102417942A CN 102417942 A CN102417942 A CN 102417942A CN 2010102928115 A CN2010102928115 A CN 2010102928115A CN 201010292811 A CN201010292811 A CN 201010292811A CN 102417942 A CN102417942 A CN 102417942A
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Prior art keywords
blast furnace
iron
forehearth
blast
furnace
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CN2010102928115A
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周久乐
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Priority to CN2010102928115A priority Critical patent/CN102417942A/zh
Priority to PCT/CN2010/077674 priority patent/WO2012040941A1/zh
Publication of CN102417942A publication Critical patent/CN102417942A/zh
Pending legal-status Critical Current

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    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B7/00—Blast furnaces
    • C21B7/14—Discharging devices, e.g. for slag
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21B—MANUFACTURE OF IRON OR STEEL
    • C21B7/00—Blast furnaces
    • C21B7/12—Opening or sealing the tap holes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B1/00—Shaft or like vertical or substantially vertical furnaces
    • F27B1/10—Details, accessories, or equipment peculiar to furnaces of these types
    • F27B1/21—Arrangements of devices for discharging
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27B—FURNACES, KILNS, OVENS, OR RETORTS IN GENERAL; OPEN SINTERING OR LIKE APPARATUS
    • F27B19/00—Combinations of furnaces of kinds not covered by a single preceding main group
    • F27B19/04—Combinations of furnaces of kinds not covered by a single preceding main group arranged for associated working
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/14—Charging or discharging liquid or molten material
    • F27D3/145—Runners therefor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/15—Tapping equipment; Equipment for removing or retaining slag
    • F27D3/1509—Tapping equipment
    • F27D3/1518—Tapholes
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F27—FURNACES; KILNS; OVENS; RETORTS
    • F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
    • F27D3/00—Charging; Discharging; Manipulation of charge
    • F27D3/15—Tapping equipment; Equipment for removing or retaining slag
    • F27D3/1509—Tapping equipment
    • F27D3/1527—Taphole forming equipment, e.g. boring machines, piercing tools
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21C—PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OF WROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS
    • C21C5/00—Manufacture of carbon-steel, e.g. plain mild steel, medium carbon steel or cast steel or stainless steel
    • C21C5/28—Manufacture of steel in the converter
    • C21C5/42—Constructional features of converters
    • C21C5/46—Details or accessories
    • C21C5/4653—Tapholes; Opening or plugging thereof

Abstract

一种高炉炼铁虹吸出铁装置，包括高炉、沿炉体的出铁口方向设置一高炉输铁水通道，高炉的出铁口通过所述的高炉输铁通道与一前炉相连接，前炉的侧上部开设有出铁口，高炉出铁口和前炉出铁口处分别设置有出铁机。本发明可以在高炉炼铁的过程中连续、稳定的出铁；可以同炼钢相配合，减少炼钢过程中混铁炉工序，使建设投资大幅降低，同时也使炼钢的能耗大幅降低。本发明特别适合于操作过程中，煤气压力大于0.2MPa的高炉，尤其适用于煤气纯氧高炉或煤粉纯氧高炉的高压操作工艺。

Description

一种高炉炼铁虹吸出铁装置
技术领域
本发明涉及一种高炉炼铁、出铁装置，特别是涉及一种高炉炼铁虹吸出铁装置。
技术背景
虹吸出铁的方法，在原有的化铁炉化铁过程中，曾经得到过广泛的利用。但是在高炉炼铁发展史上还从未采用过虹吸出铁的方法。本专利提出将化铁炉虹吸出铁方法，移植到高炉操作过程中，尤其是高压煤粉高炉出铁过程中。
发明内容
为了解决高压煤气和纯氧高炉炼铁出铁的稳定性，提高高炉作业率水平，本发明提供一种高炉炼铁虹吸出铁装置。
采用的技术方案是：
本发明适用于高炉小时产铁量大于或等于60吨/小时的炼铁工艺。本发明的高炉炼铁虹吸出铁装置，包括高炉、其特征是沿炉体的出铁口方向设置一高炉输铁水通道，高炉的出铁口通过所述的高炉输铁水通道与一前炉相连接，前炉的侧上部开设有出铁口，高炉出铁口和前炉出铁口处分别设置有出铁机。
本发明高炉虹吸出铁装置的工作原理为：前炉铁水液面高度h前液，由炉顶煤气压力P1，炉渣液面高度形成静压力P渣＝ρ渣*h渣，铁水液面距铁口中心线高度形成的压力p铁＝ρ铁*h铁，三部分组成，则P＝p1+p渣+p铁＝ρ铁*h前液，则前炉液面高度h前液＝(p1+ρ渣*h渣+ρ铁h铁)/ρ铁
由上式可见前炉铁水液面高度直接和高炉内液面高度相关联，也和炉顶煤气压力相关联。根据以上参数即可确定前炉的出铁口的高度。
该装置可以连续不断出铁，也可在预知铁水液面下方适当位置开一出铁口，按时集中出铁，出铁方式和高炉相同。
本发明所述的虹吸出铁方法和设备具有如下特点：
1、可以在高炉炼铁的过程中连续、稳定的出铁。
2、可以同炼钢相配合，减少炼钢过程中混铁炉工序，使建设投资大幅降低，同时也使炼钢的能耗大幅降低。
3、本发明特别适合于操作过程中，煤气压力大于0.2mpa的高炉，尤其适用于煤气纯氧高炉或煤粉纯氧高炉的高压操作工艺。
附图说明
图1是本发明一种实施例的结构示意图。
具体实施方式
一种高炉炼铁虹吸出铁装置，包括高炉1、前炉4、高炉输铁水通道3，高炉1上设有出铁口6，高炉1的出铁口通过高炉输铁水通道3同前炉4相连接，前炉4侧上部设有出铁口7。高炉输铁水通道及前炉均由钢板炉壳和耐火材料内壳构成。在高炉出铁口6和前炉出铁口7处分别设有出铁机2和出铁机5。各部分参数如下：
前炉直径为：3m；
炉身高度为：3m；
高炉出铁口高度：+8.400m；
炉顶压力0.3mpa；
铁水液面在炉内高于出铁口中心线1.5米；
渣液面高0.3米；
则前炉铁水液面高度H前液＝0.1mpa÷6.9t/m3+1.5m+ρ渣/ρ铁*0.3m＝3.028m；
实际高度h前液＝8.4+3.028＝11.428m。
即前炉液面高于11.428m即可连续出铁，同时也可在出铁口位置下方开一出铁口，按时集中出铁。

Claims (1)

1.一种高炉炼铁虹吸出铁装置，包括高炉、其特征是沿炉体的出铁口方向设置一高炉输铁水通道，高炉的出铁口通过所述的高炉输铁通道与一前炉相连接，前炉的侧上部开设有出铁口，高炉出铁口和前炉出铁口处分别设置有出铁机。
CN2010102928115A 2010-09-27 2010-09-27 一种高炉炼铁虹吸出铁装置 Pending CN102417942A (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
CN2010102928115A CN102417942A (zh) 2010-09-27 2010-09-27 一种高炉炼铁虹吸出铁装置
PCT/CN2010/077674 WO2012040941A1 (zh) 2010-09-27 2010-10-12 一种高炉炼铁虹吸出铁装置

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Application Number Priority Date Filing Date Title
CN2010102928115A CN102417942A (zh) 2010-09-27 2010-09-27 一种高炉炼铁虹吸出铁装置

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Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5168613A (zh) * 1974-12-12 1976-06-14 Bizukumuni Usutafu Funtonitsuk
FR2311849A1 (fr) * 1975-05-20 1976-12-17 Tech Des Ind De Fonderie Centr Procede pour maitriser la coulee de la fonte d'un cubilot et cubilot perfectionne selon ce procede
JPS59145713A (ja) * 1983-02-08 1984-08-21 Nippon Kokan Kk <Nkk> サイフオン式高炉スラグカツト装置
JPH05285639A (ja) * 1992-04-09 1993-11-02 Nippon Steel Corp 溶融金属の移し替え装置
CN1072725A (zh) * 1992-10-09 1993-06-02 李德基 带滑动门的高炉封闭铁沟出铁装置
DE19532040C2 (de) * 1995-08-31 1999-05-27 Schloemann Siemag Ag Vorrichtung zum Flüssigmetall-Transport in der Gießhalle eines Schachtofens und Verfahren zum Betrieb dieser Vorrichtung
CN101598500B (zh) * 2009-06-30 2011-04-06 莱芜钢铁集团有限公司 一种连续炼钢炉无渣出钢口
CN101603105A (zh) * 2009-07-07 2009-12-16 沈阳东方钢铁有限公司 一种高炉炼铁虹吸出铁装置

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Application publication date: 20120418