CN101693931A - Cooling device at tuyere part of blast furnace - Google Patents

Cooling device at tuyere part of blast furnace Download PDF

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Publication number
CN101693931A
CN101693931A CN200910191173A CN200910191173A CN101693931A CN 101693931 A CN101693931 A CN 101693931A CN 200910191173 A CN200910191173 A CN 200910191173A CN 200910191173 A CN200910191173 A CN 200910191173A CN 101693931 A CN101693931 A CN 101693931A
Authority
CN
China
Prior art keywords
cooling
tuyere
furnace
blast
cooling plate
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN200910191173A
Other languages
Chinese (zh)
Inventor
李云华
胡显波
王建同
贾娟鱼
李�杰
李少强
郭隆
王刚
游梅英
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CISDI Engineering Co Ltd
Original Assignee
CISDI Engineering Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by CISDI Engineering Co Ltd filed Critical CISDI Engineering Co Ltd
Priority to CN200910191173A priority Critical patent/CN101693931A/en
Publication of CN101693931A publication Critical patent/CN101693931A/en
Pending legal-status Critical Current

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Abstract

The invention discloses a cooling device at a tuyere part of a blast furnace. The cooling device is characterized by comprising a cooling plate (1) fixed on a furnace shell and at the upper part of the tuyere part, and a cooling wall (2) fixed on the furnace shell and at the lower part of the tuyere part. The cooling device takes full advantage of the cooling wall and the cooling plate and has the advantages of good cooling effect, high cooling efficiency, difficult to damage, capability of effectively protecting tuyere composite bricks and tuyere equipment and improving the stability of bosh of the blast furnace and the like.

Description

The refrigerating unit at a kind of blast-furnace tuyere position
Technical field
The present invention relates to the refrigerating unit at a kind of blast-furnace tuyere position, relate in particular to the refrigerating unit of a kind of blast-furnace tuyere band and bosh band junction.
Background technology
Blast-furnace tuyere top is the upper edge of blast furnace hearth, also be the basic place that the bosh position forms, and the bosh bottom is the dropping zone of blast-furnace smelting, the high temperature sludge flowing molten iron that is descended washes away, simultaneously, this position is in the air port zone of combustion again, so this position thermal load surely belongs to first of the whole blast furnace.What adopted at the blast-furnace tuyere position at present is that the monoblock cooling stave carries out the cooling of face formula along the circumferential arrangement of blast furnace, leaves air port equipment during the cooling stave casting passage is installed.This kind methods for cooling has cooling evenly; advantages such as good airproof performance; but the cooling degree of depth is not enough; can only protect tuyere big sleeve; reinforcement along with blast-furnace smelting; the increase of furnace heat load; the circle round expansion of district's scope of air port; the cooling power of cooling wall formula is difficult to meet the demands, and can not effectively protect tuyere brick, and tuyere brick is flowed by coal gas of high temperature in the district of circling round; the slag flowing molten iron; washing away for a long time of the burnt mixture of slag; the life-span of tuyere brick is shorter and shorter; after tuyere brick was etched, cover was exposed in the abominable smelting environment in the air port, causes air port equipment to burn out in a large number; even burning phenomenon all appears in the upper end of air port cooling stave in producing; cause water pipe to break and leak, jeopardize blast furnace hearth safety, on the other hand; after tuyere brick is etched fully; threaten the above position stability of structure of bosh, can cause bosh position furnace shell rubescent when serious; cracking, the safety in production of serious threat blast furnace.
Summary of the invention
The refrigerating unit that the purpose of this invention is to provide a kind of blast-furnace tuyere position of good cooling results.
To achieve these goals, adopt following technical scheme:
The refrigerating unit at a kind of blast-furnace tuyere position is characterized in that: described refrigerating unit comprise be fixed on the furnace shell, be positioned at the cooling plate on top, position, air port and be fixed on cooling stave on the furnace shell, that be positioned at bottom, position, air port.
Cooling plate can be one or more layers distribution.
In order to save material, improve the service efficiency of cooling plate, wherein cooling plate is positioned on the above longitudinal direction of air port equipment center line and is not more than the 1.5m scope, the multi-layer intercrossed distribution of cooling plate.
Cooling plate is welded on the furnace shell; Described cooling stave is by being bolted on the furnace shell.
The material of cooling plate and cooling stave is cast steel, cast iron or copper.
Beneficial effect of the present invention is:
Cooling plate is adopted on top, air port, and level is inserted in the stove darker, and the cooling degree of depth is big, the cooling intensity height, the cooling efficiency height, not fragile, under the condition of damaging the also removable advantage of cooling plate; And easy dross, the slag crust difficult drop-off help the protection of tuyere brick, and the existence of tuyere brick is of crucial importance to the safety at air port equipment and bosh position; Under worst situation, after tuyere brick was etched fully, cooling plate still can play a part tuyere brick, continues to keep type of furnace production;
Cooling stave is adopted in the bottom, air port, and cooling is even, and good airproof performance has the protection of overlapping in cooling plate and the air port on it, can guarantee the security of cupola well.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the left view of Fig. 1.
Embodiment
The invention will be further described below in conjunction with drawings and Examples:
The refrigerating unit at a kind of blast-furnace tuyere position, this device are included in the last furnace shell the two-layer copper cooling plate 1 of staggered arrangement on the interior longitudinal direction of the above 1.5m scope of air port medullary ray and bottom, the air port circumferential arrangement low-chromium cast-iron cooling stave 2 along blast furnace.The form that is interspersed has been saved the number of cooling plate 1, has saved material, does not influence the refrigerative effect simultaneously again.Copper cooling plate 1 is welded on the furnace shell, and low-chromium cast-iron cooling stave 2 is by being bolted on the last furnace shell.Cooling stave 2 has the cooling channel with cooling plate 1 inside, and water flowing is cooled off.
The present invention have cooling power by force, not fragile, advantages such as cooling efficiency is high, Stability Analysis of Structures, operation type of furnace rule.
The cooling plate 1 here can be cast steel, cast iron or copper with the material of cooling stave 2, can also be other thermally conductive material also.Cooling plate can be one deck only, also can be multilayer and distributes, and the form of distribution also can adopt other mode.These all drop within protection scope of the present invention.

Claims (6)

1. the refrigerating unit at a blast-furnace tuyere position is characterized in that: described refrigerating unit comprises and is fixed on cooling plate on the furnace shell, that be positioned at top, position, air port (1) and is fixed on cooling stave on the furnace shell, that be positioned at bottom, position, air port (2).
2. the refrigerating unit at blast-furnace tuyere as claimed in claim 1 position is characterized in that: described cooling plate (1) is positioned on the above longitudinal direction of air port equipment center line and is not more than the 1.5m scope.
3. the refrigerating unit at blast-furnace tuyere as claimed in claim 2 position is characterized in that: described cooling plate (1) is at least one deck.
4. the refrigerating unit at blast-furnace tuyere as claimed in claim 2 position is characterized in that: described cooling plate (1) is multi-layer intercrossed distribution.
5. as the refrigerating unit at the arbitrary described blast-furnace tuyere of claim 1 to 4 position, it is characterized in that: described cooling plate (1) is welded on the described furnace shell; Described cooling stave (2) is by being bolted on the furnace shell.
6. as the refrigerating unit at the arbitrary described blast-furnace tuyere of claim 1 to 4 position, it is characterized in that: the material of described cooling plate (1) and cooling stave (2) is cast steel, cast iron or copper.
CN200910191173A 2009-10-22 2009-10-22 Cooling device at tuyere part of blast furnace Pending CN101693931A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN200910191173A CN101693931A (en) 2009-10-22 2009-10-22 Cooling device at tuyere part of blast furnace

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN200910191173A CN101693931A (en) 2009-10-22 2009-10-22 Cooling device at tuyere part of blast furnace

Publications (1)

Publication Number Publication Date
CN101693931A true CN101693931A (en) 2010-04-14

Family

ID=42092927

Family Applications (1)

Application Number Title Priority Date Filing Date
CN200910191173A Pending CN101693931A (en) 2009-10-22 2009-10-22 Cooling device at tuyere part of blast furnace

Country Status (1)

Country Link
CN (1) CN101693931A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102021256A (en) * 2010-12-29 2011-04-20 北京京诚科林环保科技有限公司 Circulating cooling water system of blast-furnace tuyere small sleeve
CN103255252A (en) * 2013-05-30 2013-08-21 河北天宇高科冶金铸造有限公司 Steel casting big sleeve and preparation method thereof
CN106636509A (en) * 2015-10-30 2017-05-10 上海梅山钢铁股份有限公司 Masonry method
CN106676216A (en) * 2017-01-09 2017-05-17 中冶赛迪上海工程技术有限公司 Method for maintaining industrial furnace cooling wall

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102021256A (en) * 2010-12-29 2011-04-20 北京京诚科林环保科技有限公司 Circulating cooling water system of blast-furnace tuyere small sleeve
CN103255252A (en) * 2013-05-30 2013-08-21 河北天宇高科冶金铸造有限公司 Steel casting big sleeve and preparation method thereof
CN103255252B (en) * 2013-05-30 2015-01-28 河北天宇高科冶金铸造有限公司 Steel casting big sleeve and preparation method thereof
CN106636509A (en) * 2015-10-30 2017-05-10 上海梅山钢铁股份有限公司 Masonry method
CN106636509B (en) * 2015-10-30 2019-01-08 上海梅山钢铁股份有限公司 A kind of building method
CN106676216A (en) * 2017-01-09 2017-05-17 中冶赛迪上海工程技术有限公司 Method for maintaining industrial furnace cooling wall
CN106676216B (en) * 2017-01-09 2018-10-30 中冶赛迪上海工程技术有限公司 A method of for safeguarding industrial furnace cooling wall

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Open date: 20100414

C02 Deemed withdrawal of patent application after publication (patent law 2001)