CN106435076A - Blast furnace tuyere equipment with pressing device and installation method thereof - Google Patents
Blast furnace tuyere equipment with pressing device and installation method thereof Download PDFInfo
- Publication number
- CN106435076A CN106435076A CN201610825280.9A CN201610825280A CN106435076A CN 106435076 A CN106435076 A CN 106435076A CN 201610825280 A CN201610825280 A CN 201610825280A CN 106435076 A CN106435076 A CN 106435076A
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- CN
- China
- Prior art keywords
- blast
- hold down
- furnace
- down gag
- bearing pin
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- 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.)
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Classifications
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/16—Tuyéres
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
The invention discloses blast furnace tuyere equipment with a pressing device and an installation method thereof. The blast furnace tuyere equipment with the pressing device comprises a conical structure and the pressing device, wherein the conical structure is formed in a way that a large sleeve, a middle sleeve and a small sleeve fixedly sleeve, the middle sleeve is located in a furnace shell, the large sleeve is located on the outer side of the furnace shell, the small sleeve is located on the inner side of the furnace shell, and the pressing device is arranged in the conical structure. According to the blast furnace tuyere equipment with the pressing device, the problem of tuyere damage caused by ejection of the small sleeve and the middle sleeve due to in-furnace high pressure can be preferably solved, normal production of a blast furnace is guaranteed, and the life safety of operating personnel is guaranteed.
Description
Technical field
The invention belongs to field of blast-furnace equipment, more particularly, to a kind of blast-furnace tuyere equipment with hold down gag and its installation side
Method.
Background technology
Blast-furnace tuyere is to ensure that the normal critical component producing of blast furnace.Blast-furnace tuyere need to possess that conductivity is good, cooling uniformly,
Cooling effectiveness height, tissue tight, the good feature of wearability, are typically circumferentially uniformly installed in the furnace wall between bosh and furnace bottom.High
In stove production process, keep high pressure conditions in stove, blast hot blast, tuyere equipment into stove by being arranged on the equipment of blast-furnace tuyere
Including big set, middle set and little set, conical structure is socketed into by big set, middle set and little set.In process of production, will by air pressure gun
Hot blast passes through little set endoporus and is sent in blast furnace, and air pressure gun passes through its front end sphere and contacts fixation with little set spheric seating, before little set
End is nearly 2000 DEG C of hot environment, and more than 1400 DEG C, the hot blast temperature passing through from tuyere small sleeve also exists slag iron melt temperature
More than 1000 DEG C, the working environment of therefore tuyere small sleeve is extremely severe, typically adopts fine copper, and the inside leads to cooling water circulation cooling,
It is to prevent hot blast and coal dust from directly washing away furnace wall that little set protrudes in stove.Due to keeping high pressure conditions, existing blast furnace in stove
Often there is the risk that tuyere small sleeve and middle set are ejected in tuyere equipment, not only have impact on the normal production of blast furnace, and easily make
Become personnel casualty accidentses.
Content of the invention
Problem to be solved by this invention is to provide a kind of blast-furnace tuyere equipment with hold down gag and its installation method.This
The blast-furnace tuyere equipment of inventive belt hold down gag can prevent well to be made little set and the ejection of middle set due to stove inner high voltage
Become the problem of the breakage in air port, both ensure that the normal production of blast furnace, also ensure the life security of operator.
A kind of blast-furnace tuyere equipment with hold down gag of the present invention, it includes solid by big set, middle set and little set three's socket
The cone structure that is shaped as, hold down gag；Wherein, middle set is in furnace shell, big set is in the outside of furnace shell, little set is in furnace shell
Inner side, hold down gag is arranged in cone structure.
Further, described cone structure is：The outer conical surface of middle set stub end and the big inner circle taper hole covering little head end
Cooperation, the inner circle taper hole of its little head end is coordinated with the outer conical surface of little set stub end.
Further, hold down gag includes several compressing units, the end face of middle set stub end is provided with several convex
Platform, each compressing unit with a boss putting corresponding.
Further, each compressing unit includes locking device, pressing plate, bearing pin；Bearing pin be arranged in the inwall of big set and
Corresponding with the position of middle set convex platform, the plate end of pressing plate is enclosed within bearing pin, and locking device is pressed on the plate end of pressing plate, pressing plate
Rod end be pressed on the boss of middle set.
Further, locking device includes locking nut, spring shim, and bearing pin is provided with screw thread, and locking nut screws
On the screw thread of bearing pin, and spring shim is pressed on the plate end of pressing plate, so that the rod end of pressing plate is pressed on the boss of middle set.
Further, locking device includes wedge pin, bearing pin is provided with wedged hole, wedge pin wedging is in the wedge shape of bearing pin
In the hole, and be pressed on the plate end of pressing plate, so that the rod end of pressing plate is pressed on the boss of middle set.
Further, described boss is preferably two, is distributed on the end face of middle set stub end.
Further, pressing plate is provided with reinforcement.
Further, blast-furnace tuyere equipment also includes covering greatly flange, seal closure, and big set flange is fixed on furnace shell, passes through
Securing member is connected with big set, and seal closure is enclosed within outside big covering and is fixed on furnace shell.
A kind of installation method of the blast-furnace tuyere equipment with hold down gag of the present invention, it comprises the concrete steps that：1. will cover greatly, in
The cone structure of set and little set formation is placed in blast-furnace tuyere, makes the end face of the little head end of middle set abut against tuyere combined brick
On outside；2. flange welding will be covered greatly on last furnace shell, and be connected by securing member with big set；3. the plate end of pressing plate is enclosed within
On bearing pin, rod end is pressed on the boss of middle set, locking nut is locked on bearing pin or by wedge pin wedging on bearing pin, makes
The rod end of pressing plate is pressed on the boss of middle set；4. seal closure is enclosed within outside big covering, and is welded on last furnace shell.
The present invention by hold down gag by middle set and little set be pressed in cone structure, can prevent well due to
Little set and middle set ejection are caused the problem of the breakage in air port by stove inner high voltage.Meanwhile, present configuration is simple, installs, dismantles all
Easily.
Brief description
Fig. 1 is a kind of schematic diagram of the blast-furnace tuyere equipment with hold down gag of the present invention；
Fig. 2 is the structural representation of the big set of the present invention；
Fig. 3 is the structural representation of set in the present invention；
Fig. 4 is the left view of Fig. 3；
Fig. 5 is the structural representation of pressing plate of the present invention.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and detailed description.
Embodiment 1
A kind of blast-furnace tuyere equipment with hold down gag of the present invention, it includes by covering greatly 1, middle set 2 and little set 3 threes are fixed by socket
The cone structure of formation, hold down gag；Hold down gag is arranged in cone structure；Wherein, middle set 2 is in furnace shell, covers greatly at 1
It is in the inner side of furnace shell in the outside of furnace shell, little set 3, hold down gag is arranged in cone structure.Wherein, middle set abuts against furnace shell
On the outside of modular tile.Big set is made up of cast steel, and middle set, little set are made up of fine copper.Big set, middle set and little put be both provided with cold
But water installations 12.
Embodiment 2
Cone structure in above-described embodiment is：The outer conical surface of middle set 2 stub ends is joined with the big inner circle taper hole covering 1 little head end
Close, the inner circle taper hole of its little head end is coordinated with the outer conical surface of little set 3 stub ends.
Embodiment 3
Hold down gag includes several compressing units, and the end face of middle set 2 stub end is provided with several boss 9, each compression
Unit is corresponding with a boss 9 on middle set 2.The effect of hold down gag is to cover 2 in compression, accordingly even when being subject to stove inner high voltage
Effect, little set and middle set also will not be ejected.
Embodiment 4
Wherein, each compressing unit includes locking device, pressing plate 6, bearing pin 8；Bearing pin 8 be arranged in the inwall of big set 1 and with
The position covering 2 convex platforms 9 is corresponding, and the plate end of pressing plate 6 is enclosed within bearing pin 8, and locking device is pressed on the plate end of pressing plate 6, pressure
The rod end of plate 6 is pressed on the boss 9 of middle set 2.In order to substrate hold-down function is better achieved, bearing pin 8 preferably covers 1 one castings with big
Make, thus ensure that its rigidity and intensity, thus it is more reliable to compress boss 9.
Locking device in the present invention has following two structures：
Embodiment 5
A kind of locking device includes locking nut, spring shim, and bearing pin 8 is provided with screw thread, and locking nut screws in bearing pin 8
On screw thread, and spring shim is pressed on the plate end of pressing plate 6, so that the rod end of pressing plate 6 is pressed on the boss 9 of middle set 2.This kind of
Structure is to cover 2 by nut, spring shim compression, so that little set and middle set will not be ejected；The preferably bidirectional spiral shell of screw thread
Stricture of vagina.
Embodiment 6
Another locking device includes wedge pin 5, bearing pin 8 is provided with wedged hole, wedge pin 5 wedging is in the wedge shape of bearing pin 8
In the hole, and be pressed on the plate end of pressing plate 6, so that the rod end of pressing plate 6 is pressed on the boss 9 of middle set 2.
This structure can cover 2 in compressing by wedge pin 5, so that little set and middle set will not be ejected.With respect to upper
Plant structure, the structure of this locking device is simple, installs, dismantles all easily, and wedge pin has the function of self-locking, and energy is very well
Ground increases the firmness of tuyere equipment.
Embodiment 7
Described boss 9 preferably elects two as, is distributed on the end face of middle set 2 stub ends.Boss uniformly makes what it was subject to press
The uniform pressure distribution of tight device, the setting of boss with can push down middle cover and do not affect normally dry as excellent.
Embodiment 8
In the above-described embodiments, pressing plate 6 is provided with reinforcement.Reinforcement makes the intensity enhancing of pressing plate 6, thus preferably pressing
Set 2 in living.
Embodiment 9
The blast-furnace tuyere equipment with hold down gag of the present invention also includes covering greatly flange 4, seal closure 7, and big set flange 4 is fixed on stove
On shell 10, is connected with big set 1 by securing member, seal closure 7 is enclosed within and covers outside 1 greatly and be fixed on furnace shell 10.
Embodiment 10
The installation method with the blast-furnace tuyere equipment of hold down gag for the present invention, it comprises the concrete steps that：1. will cover greatly 1, middle set 2 and little
The cone structure of set 3 formation is placed in blast-furnace tuyere, makes the end face of the little head end of middle set abut against the outer of tuyere combined brick 11
On side；2. big set flange 4 is welded on last furnace shell 10, and is connected by securing member with big set 1；3. by the plate end of pressing plate 6
It is enclosed within bearing pin 8, rod end is pressed on the boss 9 of middle set, locking nut is locked on bearing pin or by wedge pin wedging in pin
On axle, the rod end of pressing plate is made to be pressed on the boss of middle set；4. seal closure 4 is enclosed within outside big set 1, and is welded on last furnace shell 10
On.
By the method for the present invention, the blast-furnace tuyere equipment of the present invention is arranged in blast-furnace tuyere, can effectively prevent
In only, set and little set are ejected.
The hold down gag of the present invention can not only be provided in middle set, and can also be arranged in little set, as long as not shadow
Ring the use of air pressure gun.Specific embodiment is：Several boss, compression dress are provided with the end face of little set 3 stub ends
It has been set to easy to operate, be also provided in covering greatly on 1（Naturally it can also arranged on middle set 2）, in hold down gag, have several
With the one-to-one compressing unit of boss：So, the plate end of pressing plate 6 is enclosed within the bearing pin being arranged in the inwall of big set 1 or middle set 2
On 8, its plate end relies on wedge pin or nut compression, and its rod end is pressed on the boss of little set 3.
More than, only presently preferred embodiments of the present invention, but protection scope of the present invention is not limited thereto, any it is familiar with basis
Those skilled in the art the invention discloses technical scope in, the change or replacement that can readily occur in, all should cover
Within protection scope of the present invention.Therefore, protection scope of the present invention should be defined by the protection domain that claim is defined.
Claims (10)
1. a kind of blast-furnace tuyere equipment with hold down gag it is characterised in that：It includes by covering greatly（1）, middle set（2）With little set
（3）Three is fixed by socket the cone structure of formation, hold down gag；Wherein, middle set（2）It is in furnace shell, cover greatly（1）It is in furnace shell
Outside, little set（3）It is in the inner side of furnace shell, hold down gag is arranged in cone structure.
2. the blast-furnace tuyere equipment with hold down gag according to claim 1 it is characterised in that：Described cone structure
For：Middle set（2）The outer conical surface of stub end is covered with big（1）Little head end inner circle taper hole cooperation, the inner circle taper hole of its little head end with
Little set（3）The outer conical surface cooperation of stub end.
3. the blast-furnace tuyere equipment with hold down gag according to claim 1 it is characterised in that：Hold down gag includes some
Individual compressing unit, middle set（2）Several boss are provided with the end face of stub end（9）, each compressing unit and middle set（2）On
One boss（9）Corresponding.
4. the blast-furnace tuyere equipment with hold down gag according to claim 3 it is characterised in that：Each compressing unit includes
Locking device, pressing plate（6）, bearing pin（8）；Bearing pin（8）It is arranged on big set（1）Inwall in and with middle set（2）Convex platform（9）'s
Position is corresponding, pressing plate（6）Plate end be enclosed within bearing pin（8）On, locking device is pressed on pressing plate（6）Plate end on, pressing plate（6）'s
Rod end is pressed on middle set（2）Boss（9）On.
5. the blast-furnace tuyere equipment with hold down gag according to claim 4 it is characterised in that：Described locking device bag
Include locking nut, spring shim, bearing pin（8）On be provided with screw thread, locking nut screws in bearing pin（8）Screw thread on, and by bullet
Spring pad is pressed on pressing plate（6）Plate end on, make pressing plate（6）Rod end be pressed on middle set（2）Boss（9）On.
6. the blast-furnace tuyere equipment with hold down gag according to claim 4 it is characterised in that：Described locking device bag
Include wedge pin（5）, bearing pin（8）On be provided with wedged hole, wedge pin（5）Wedging is in bearing pin（8）Wedge shape in the hole, and be pressed on pressure
Plate（6）Plate end on, make pressing plate（6）Rod end be pressed on middle set（2）Boss（9）On.
7. the blast-furnace tuyere equipment with hold down gag according to claim 3 it is characterised in that：Described boss（9）Excellent
Elect two as, be distributed on middle set（2）On the end face of stub end.
8. the blast-furnace tuyere equipment with hold down gag according to claim 4 it is characterised in that：Pressing plate（6）On be provided with
Reinforcement.
9. the blast-furnace tuyere equipment with hold down gag according to claim 1 it is characterised in that：Described blast-furnace tuyere sets
Standby also include covering greatly flange（4）, seal closure（7）, cover greatly flange（4）It is fixed on furnace shell（10）Above, covered with big by securing member（1）
Connect, seal closure（7）It is enclosed within big set（1）Outer and be fixed on furnace shell（10）On.
10. the installation method of the blast-furnace tuyere equipment with hold down gag according to claim 1-9, it comprises the concrete steps that：
1. the cone structure forming big set, middle set and little set is placed in blast-furnace tuyere, so that the end face of the little head end of middle set is abutted against
On the outside of tuyere combined brick；2. flange welding will be covered greatly on last furnace shell, and be connected by securing member with big set；3. will press
The plate end of plate is enclosed within bearing pin, and rod end is pressed on the boss of middle set, locking nut is locked on bearing pin or by wedge pin wedge
Tightly on bearing pin, the rod end of pressing plate is made to be pressed on the boss of middle set；4. seal closure is enclosed within outside big covering, and is welded on State of Blast Furnace
On shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610825280.9A CN106435076A (en) | 2016-09-18 | 2016-09-18 | Blast furnace tuyere equipment with pressing device and installation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610825280.9A CN106435076A (en) | 2016-09-18 | 2016-09-18 | Blast furnace tuyere equipment with pressing device and installation method thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106435076A true CN106435076A (en) | 2017-02-22 |
Family
ID=58168269
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610825280.9A Pending CN106435076A (en) | 2016-09-18 | 2016-09-18 | Blast furnace tuyere equipment with pressing device and installation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106435076A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110206886A (en) * | 2019-07-03 | 2019-09-06 | 山东钢铁股份有限公司 | A kind of inner room sealing device |
| CN111719030A (en) * | 2020-07-14 | 2020-09-29 | 中冶京诚工程技术有限公司 | Structure for preventing gas leakage of tuyere and tuyere sleeve structure |
| CN114576447A (en) * | 2022-01-29 | 2022-06-03 | 北京首钢股份有限公司 | Sealing structure of blast furnace tuyere and installation method |
| CN115125343A (en) * | 2022-07-29 | 2022-09-30 | 内蒙古工业大学 | Wear-resistant high-temperature-resistant blast furnace tuyere |
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| CN202297634U (en) * | 2011-09-30 | 2012-07-04 | 天津钢铁集团有限公司 | Novel tuyere medium sleeve pressing device |
| CN102559972A (en) * | 2010-12-07 | 2012-07-11 | 王平 | Blast furnace air port sleeve |
| CN104946837A (en) * | 2015-07-08 | 2015-09-30 | 中国十七冶集团有限公司 | Off-line assembling and integral installing method for large tuyere sleeve, medium tuyere sleeve and small tuyere sleeve of blast furnace |
| CN205368409U (en) * | 2016-02-16 | 2016-07-06 | 河北钢铁股份有限公司承德分公司 | Overlap in wind gap that can prevent to upwarp |
| CN205999407U (en) * | 2016-09-18 | 2017-03-08 | 中冶华天南京工程技术有限公司 | A kind of blast-furnace tuyere equipment with hold down gag |
-
2016
- 2016-09-18 CN CN201610825280.9A patent/CN106435076A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102559972A (en) * | 2010-12-07 | 2012-07-11 | 王平 | Blast furnace air port sleeve |
| CN202297634U (en) * | 2011-09-30 | 2012-07-04 | 天津钢铁集团有限公司 | Novel tuyere medium sleeve pressing device |
| CN104946837A (en) * | 2015-07-08 | 2015-09-30 | 中国十七冶集团有限公司 | Off-line assembling and integral installing method for large tuyere sleeve, medium tuyere sleeve and small tuyere sleeve of blast furnace |
| CN205368409U (en) * | 2016-02-16 | 2016-07-06 | 河北钢铁股份有限公司承德分公司 | Overlap in wind gap that can prevent to upwarp |
| CN205999407U (en) * | 2016-09-18 | 2017-03-08 | 中冶华天南京工程技术有限公司 | A kind of blast-furnace tuyere equipment with hold down gag |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110206886A (en) * | 2019-07-03 | 2019-09-06 | 山东钢铁股份有限公司 | A kind of inner room sealing device |
| CN111719030A (en) * | 2020-07-14 | 2020-09-29 | 中冶京诚工程技术有限公司 | Structure for preventing gas leakage of tuyere and tuyere sleeve structure |
| CN114576447A (en) * | 2022-01-29 | 2022-06-03 | 北京首钢股份有限公司 | Sealing structure of blast furnace tuyere and installation method |
| CN115125343A (en) * | 2022-07-29 | 2022-09-30 | 内蒙古工业大学 | Wear-resistant high-temperature-resistant blast furnace tuyere |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170222 |
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| RJ01 | Rejection of invention patent application after publication |