CN105907908B - Blast furnace thin-walled liner and installation method - Google Patents
Blast furnace thin-walled liner and installation method Download PDFInfo
- Publication number
- CN105907908B CN105907908B CN201610429481.7A CN201610429481A CN105907908B CN 105907908 B CN105907908 B CN 105907908B CN 201610429481 A CN201610429481 A CN 201610429481A CN 105907908 B CN105907908 B CN 105907908B
- Authority
- CN
- China
- Prior art keywords
- brick
- bricking
- bosh
- shaft
- cooling wall
- 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.)
- Active
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/04—Blast furnaces with special refractories
- C21B7/06—Linings for furnaces
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Blast Furnaces (AREA)
Abstract
The present invention discloses a kind of blast furnace thin-walled liner, mainly for the short problem of the blast furnace service life under the prior art, a kind of blast furnace thin-walled liner for extending blast furnace service life, including bosh, furnace bosh and shaft are proposed, the shaft includes upper shaft, shaft middle part and restoration of lower stack；The cooling wall inlaid of the bosh, furnace bosh and restoration of lower stack is brick to build up even surface bricking, and the cooling wall in the middle part of the upper shaft and shaft builds the card slot bricking being arranged at groove and bulge clearance；Spray coating is provided on the inside of the even surface bricking and the card slot bricking, the hot face of the spray coating is smooth surface.Different brickings is provided with according to the difference of its working environment in different location on blast furnace cooling stave of the invention, the service life of each position can significantly extend, thus, it is possible to extend the service life of blast furnace.
Description
Technical field
The present invention relates to a kind of blast furnace thin-walled liner and installation methods.
Background technique
The characteristics of thin-walled inner liner blast furnace is that the design inner mold of blast furnace is the operation type of furnace of blast furnace, in production almost always
It remains stationary, is conducive to the stabilization of blast furnace operating system, then realize the long-term direct motion of blast furnace, be finally reached blast furnace high yield longevity
The distinguishing feature of purpose, design inner mold is that furnace bosh diameter is big, and ratio of height to diameter is small, and bosh and shaft angle are smaller.The appearance of the type of furnace
It is the development of ironmaking technology, is conducive to that blast furnace stock column is ventilative and Gas Flow reasonable layout, big coal injection and low is taken to blast furnace
It is significant to improve the capacity factor of a blast furnace for coke.
But since the cooling of brick wall unification is usually taken in the liner of the above bosh in thin-walled inner liner blast furnace air port, furnace bosh and shaft
But the structure of wall edge brick and spray coating, spray paint are painted on the smooth surface of cooling wall inlaid brick, when blast fumance, in furnace charge
Under washing away with Gas Flow, under thermal stress and physico-chemical attack, dope layer is stripped fall in flakes quickly, fails to play protection
The mesh of bricking can seriously affect the service life of blast furnace.
Summary of the invention
In view of the above-mentioned problems, the present invention provides a kind of blast furnace thin-walled liner for extending the life of the blast furnace.
In order to achieve the above objectives, blast furnace thin-walled liner of the present invention, including bosh, furnace bosh and shaft, the shaft include furnace
Body, shaft middle part and restoration of lower stack；The cooling wall inlaid of the bosh, furnace bosh and restoration of lower stack is brick to build up even surface brick
It serves as a contrast, the cooling wall in the middle part of the upper shaft and shaft builds the card slot bricking being arranged at groove and bulge clearance；It is described smooth
Spray coating is provided on the inside of face brick lining and the card slot bricking, the hot face of the spray coating is smooth surface.
Further, it is provided with dovetail groove on the cooling wall in the middle part of the shaft, the card slot bricking in the middle part of the shaft
Cooling wall inlaid brick is dovetail brick, the brick including cubic shaped of the dovetail brick be arranged on the outside of the brick of cubic shaped
Dovetail, the dovetail groove and the dovetail cooperate.
Further, dovetail groove is provided on the cooling wall of the upper shaft, the card slot bricking of the upper shaft
The cross sectional shape of cooling wall inlaid brick is trapezoidal trapezoidal brick, and the prompting brick and the dovetail groove cooperate.
Further, the card slot bricking in the middle part of the shaft includes several spaced raised brickings and is arranged described
Groove bricking within raised bricking interval；The thickness of the dovetail brick of the groove bricking is less than the dovetail brick of the raised bricking
Thickness.
Further, the card slot bricking of the upper shaft includes several layers trapezoidal brick, and adjacent two layers trapezoidal brick interval is set
It sets.
Specifically, the groove bricking is 25~35mm at a distance from the hot face of the raised bricking.
Specifically, hot 25~35mm of face of the prominent cooling wall in the hot face of the trapezoidal brick.
The spray paint of blast furnace thin-walled liner of the present invention depends on intensity height, and stability is strong.Blast furnace thin-walled liner of the present invention passes through
The card slot type structure for designing the hot face of cooling wall inlaid brick at upper shaft and middle part considerably increases spray paint and inlays the combination energy of brick
Power considerably increases the antiscour of the card slot trypsin method bed of material and the ability of antistripping by spray paint in card slot, to extend
The service life of blast furnace.
The cooling wall inlaid brick of bosh furnace bosh and restoration of lower stack is set to even surface by blast furnace thin-walled liner of the present invention, and
So that internal spray coating is formed even surface, enhances its impact resistance ability in corresponding working environment, service life extends.
In order to achieve the above objectives, the present invention provides a kind of installation side of blast furnace thin-walled liner as described in above-mentioned any one
Method, which comprises
Build bosh unit, furnace bosh unit and shaft unit；
Bosh unit, furnace bosh unit and shaft unit are installed；
Sprayed in bosh unit, furnace bosh unit and shaft unit inside, make furnace bosh unit, furnace bosh unit and
Shaft unit inside forms smooth hot face；
Wherein, the building process of the bosh unit and furnace bosh unit is as follows: building on the cooling wall of bosh and furnace bosh
Cooling wall inlaid brick forms even surface bricking；
The masonry of the shaft unit includes:
Restoration of lower stack is built: being built cooling wall inlaid brick on the cooling wall of upper shaft, is formed even surface bricking；
In the middle part of shaft and top is built: being built cooling wall inlaid brick in the middle part of shaft and on the cooling wall of lower part, is formed card slot
Bricking.
The installation method of blast furnace thin-walled liner of the present invention passes through the hot face of cooling wall inlaid brick in the middle part of design upper shaft and shaft
Card slot type structure, considerably increase spray paint and inlay brick binding ability, card slot is considerably increased by spray paint in card slot
The antiscour of the trypsin method bed of material and the ability of antistripping, to extend the service life of blast furnace.
The cooling wall inlaid brick of bosh furnace bosh and restoration of lower stack is set to by the installation method of blast furnace thin-walled liner of the present invention
Even surface, and internal spray coating is made to form even surface, enhance its impact resistance ability in corresponding working environment, uses
Service life extends.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of blast furnace thin-walled liner of the present invention；
Fig. 2 is enlarged drawing at the I of Fig. 1；
Fig. 3 is enlarged drawing at the II of Fig. 1；
Fig. 4 is enlarged drawing at the III of Fig. 1.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings of the specification.
Embodiment 1
As shown in Figs 1-4, the blast furnace thin-walled liner of the present embodiment, including set gradually from bottom to top bosh, furnace bosh and
Shaft, the shaft include upper shaft, shaft middle part and restoration of lower stack；The cooling wall of the bosh, furnace bosh and restoration of lower stack
Inlay it is brick build up even surface bricking 3, cooling wall 2 in the middle part of the upper shaft and shaft is built to be arranged at groove and bulge clearance
Card slot bricking；Spray coating 4, the hot face of the spray coating 4 are provided on the inside of the even surface bricking and the card slot bricking
For smooth surface.
The present embodiment blast furnace thin-walled liner uses different masonry way according to blast furnace different parts.According to blast furnace difference
The different working environment in position, bosh, furnace bosh and restoration of lower stack cooling wall inlaid brick and spraying keep smooth excessiveness, to reduce liquid
State slag iron and Gas Flow wash away；All standing cooling wall inlaid brick is used in the middle part of shaft outside spray paint 4, the edge hot face of brick is card slot type,
In favor of depending on for spray paint 4；Embedded cooling wall inlaid brick, the hot face protrusion cooling of edge brick are used outside upper shaft spray paint 4
The hot face of wall 2, and notch is formed, in favor of depending on for spray paint 4.
In the blast furnace thin-walled liner of the present embodiment, bosh, furnace bosh and the design of restoration of lower stack masonry construction are as shown in Figure 2.It should
Position long-term work under 1600~1650 DEG C of high temperature, be subject primarily to include molten slag and high-temperature coal air-flow be flushed in it is more
Kind corrodes, and any resistance to material corrodes quickly at the position, which relies primarily on the cooling wall 2 with high cooling capacity and self make
Slag maintains work, and in the present embodiment the hot face of position cooling wall inlaid brick shown in Fig. 2 and spray coating 4 is both designed as smoothed
Degree, can have the long period under slag and airflow scouring.
In the blast furnace thin-walled liner of the present embodiment, masonry construction design is as shown in Figure 3 in the middle part of shaft.The position is primarily subjected to
Furnace charge impact, furnace dirt rise abrasion and thermal shock and alkali metal corrodes.The position cooling wall inlaid brick is formed in the present embodiment
Notch is conducive to depending on for spray coating 4, improves the binding ability of cooling wall inlaid brick and spray coating 4 shown in Fig. 3.In addition, should
Position is designed as 2 all-covered brick-inlaid of cooling wall, can effectively prevent the thermal shock to cooling wall 2.
In the blast furnace thin-walled liner of the present embodiment, the design of upper shaft masonry construction is as shown in Figure 4.The position is primarily subjected to
Furnace charge impact and furnace dirt rise abrasion.It is embedding that the position cooling wall inlaid brick, which designs cooling wall inlaid brick shown in Fig. 4, in the present embodiment
Enter formula, the hot face of cooling wall 2 is protruded in the hot face of edge brick, and the notch for building formation is conducive to depending on for spray coating 4, improves cooling wall
Inlay the binding ability of brick and spray coating 4.
Embodiment 2
On the basis of the above embodiments, on the cooling wall 2 in the middle part of the shaft of the blast furnace thin-walled liner of the present embodiment
It is provided with dovetail groove, the cooling wall inlaid brick of the card slot bricking in the middle part of the shaft is dovetail brick, and the dovetail brick includes cube
The brick of shape and the dovetail being arranged on the outside of the brick of cubic shaped, the dovetail groove and the dovetail cooperate.It is described
Card slot bricking in the middle part of shaft includes several spaced raised brickings 6 and is arranged within the raised interval of bricking 6
Groove bricking 5；The thickness of the dovetail brick of the groove bricking 5 is less than the dovetail brick thickness of the raised bricking 6.The frog brick
Lining 5 is 25~35mm at a distance from the hot face of the raised bricking 6.
In the present embodiment, the cooling wall 2 in the middle part of shaft is connect with brick by dovetail groove, makes cooling wall 2 and cooling wall inlaid brick
It is easy to connect and secured, the card slot bricking is set to the shape that raised bricking 6 and groove bricking 5 are arranged alternately,
One convex one recessed shape is formd, in this way, considerably increasing spray paint by the card slot type structure in the design hot face of cooling wall inlaid brick
4 with edge brick binding ability, the antiscour and antistripping of 4 layers of card slot trypsin method material are considerably increased by spray paint 4 in card slot
Ability, and 2 all-covered brick-inlaid of cooling wall can effectively prevent the thermal shock to cooling wall 2, to extend the longevity of blast furnace
Life.The cooling wall inlaid brick of the present embodiment to be bumped into position corresponding with 2 dovetail groove of cooling wall, when installation, only need to inlay brick according to drawing
Number is built, and structure is simple, easy for installation.
Embodiment 3
On the basis of above-described embodiment side, set on the cooling wall 2 of upper shaft described in the blast furnace thin-walled liner of the present embodiment
It is equipped with dovetail groove, the cross sectional shape of the cooling wall inlaid brick of the card slot bricking of the upper shaft is trapezoidal trapezoidal brick 7, described to mention
Brick of waking up cooperates with the dovetail groove.Hot 25~35mm of face of the prominent cooling wall 2 in the hot face of the trapezoidal brick 7.
The dovetail groove of the trapezoidal brick 7 of the present embodiment and the cooling wall 2 cooperates, easy for installation, also, each layer of trapezoidal brick
It is provided with interval between 7, is also formed the structure of card slot type, the Adhesion enhancement between trapezoidal brick 7 and spray coating 4, spraying
Layer 4 is unlikely to be peel off.In addition, not needing cooling wall inlaid since upper shaft is primarily subjected to furnace charge impact and the rising abrasion of furnace dirt
Therefore all standing of brick can also achieve the effect that the setting of the interval of trapezoidal brick 7 to save material in the present embodiment.
Embodiment 4
The present embodiment provides a kind of installation methods of blast furnace thin-walled liner, which comprises
Build bosh unit, furnace bosh unit and shaft unit；
Bosh unit, furnace bosh unit and shaft unit are installed；
Sprayed in bosh unit, furnace bosh unit and shaft unit inside, make furnace bosh unit, furnace bosh unit and
Shaft unit inside forms smooth hot face；
Wherein, the building process of the bosh unit and furnace bosh unit is as follows: building on the cooling wall 2 of bosh and furnace bosh
Cooling wall inlaid brick forms even surface bricking 3；
The masonry of the shaft unit includes:
Restoration of lower stack is built: being built cooling wall inlaid brick on the cooling wall 2 of upper shaft, is formed even surface bricking 3；
In the middle part of shaft and top is built: being built cooling wall inlaid brick in the middle part of shaft and on the cooling wall 2 of lower part, is formed card slot
Bricking.
It is numbered when the cooling wall inlaid brick design of the installation method of the blast furnace thin-walled liner in the present embodiment, it is cold with every layer
But wall 2 is corresponded to.The cooling wall 2 of different parts in a pre-installation, need to scheme to complete different parts cooling wall inlaid previously according to building
The masonry work of brick stands a period of time after mud is dry as required, successively lifts cooling wall 2 and edge brick to installing
Last furnace shell 1 on, cooling wall 2 be used to inlay the card slot of brick build edge brickwork as when be completed, waiting blast furnaces to build work terminates
Spray paint 4 is painted on cooling wall inlaid brick surface afterwards.This installation method preprocessing degree is high, convenient and quick construction.
More than, only presently preferred embodiments of the present invention, but scope of protection of the present invention is not limited thereto, and it is any to be familiar with sheet
In the technical scope disclosed by the present invention, any changes or substitutions that can be easily thought of by those skilled in the art, should all cover
Within protection scope of the present invention.Therefore, the scope of protection of the present invention shall be subject to the scope of protection defined by the claims.
Claims (6)
1. a kind of blast furnace thin-walled liner, including bosh, furnace bosh and shaft, the shaft includes upper shaft, shaft middle part and furnace
Body lower part；It is characterized by: the cooling wall inlaid of the bosh, furnace bosh and restoration of lower stack is brick to build up even surface bricking, the furnace
Cooling wall in the middle part of body and shaft builds the card slot bricking being arranged at groove and bulge clearance；The even surface bricking and institute
It states and is provided with spray coating on the inside of card slot bricking, the hot face of the spray coating is smooth surface；
Dovetail groove is provided on cooling wall in the middle part of the shaft, the cooling wall inlaid brick of the card slot bricking in the middle part of the shaft is swallow
Tail brick, the brick including cubic shaped of the dovetail brick and the dovetail being arranged on the outside of the brick of cubic shaped, the swallow
Stern notch and the dovetail cooperate；
Card slot bricking in the middle part of the shaft includes several spaced raised brickings and setting at the raised bricking interval
Within groove bricking；The thickness of the dovetail brick of the groove bricking is less than the dovetail brick thickness of the raised bricking.
2. blast furnace thin-walled liner as described in claim 1, it is characterised in that: be provided with dovetail on the cooling wall of the upper shaft
Slot, the cross sectional shape of the cooling wall inlaid brick of the card slot bricking of the upper shaft are trapezoidal trapezoidal brick, the trapezoidal brick and institute
State dovetail groove cooperation.
3. blast furnace thin-walled liner as claimed in claim 1 or 2, it is characterised in that: if the card slot bricking of the upper shaft includes
Dried layer trapezoidal brick, the setting of adjacent two layers trapezoidal brick interval.
4. blast furnace thin-walled liner as described in claim 1, it is characterised in that: the hot face of the groove bricking and the raised bricking
Distance be 25~35mm.
5. blast furnace thin-walled liner as claimed in claim 3, it is characterised in that: the hot face of the prominent cooling wall in the hot face of the trapezoidal brick
25~35mm.
6. a kind of installation method of the blast furnace thin-walled liner as described in claim 1-5 any one, it is characterised in that: the method
Include:
Build bosh unit, furnace bosh unit and shaft unit；
Bosh unit, furnace bosh unit and shaft unit are installed；
It is sprayed in bosh unit, furnace bosh unit and shaft unit inside, makes bosh unit, furnace bosh unit and shaft list
First inside forms smooth hot face；
Wherein, the building process of the bosh unit and furnace bosh unit is as follows: cooling is built on the cooling wall of bosh and furnace bosh
Wall inlays brick, forms even surface bricking；
The masonry of the shaft unit includes:
Restoration of lower stack is built: being built cooling wall inlaid brick on the cooling wall of restoration of lower stack, is formed even surface bricking；
In the middle part of shaft and top is built: being built cooling wall inlaid brick in the middle part of shaft and on the cooling wall on top, is formed card slot bricking.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610429481.7A CN105907908B (en) | 2016-06-15 | 2016-06-15 | Blast furnace thin-walled liner and installation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610429481.7A CN105907908B (en) | 2016-06-15 | 2016-06-15 | Blast furnace thin-walled liner and installation method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105907908A CN105907908A (en) | 2016-08-31 |
| CN105907908B true CN105907908B (en) | 2018-12-04 |
Family
ID=56750305
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610429481.7A Active CN105907908B (en) | 2016-06-15 | 2016-06-15 | Blast furnace thin-walled liner and installation method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105907908B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106755680B (en) * | 2017-01-12 | 2018-09-18 | 马钢集团设计研究院有限责任公司 | A kind of middle-size and small-size heavy wall blast furnace furnace wall remodeling method and its structure |
| CN107841584B (en) * | 2017-12-13 | 2023-04-11 | 中冶京诚工程技术有限公司 | Blast furnace body structure with variable taper |
| CN108645205A (en) * | 2018-05-04 | 2018-10-12 | 中国矿业大学(北京) | A method of preventing cylinder of rotary kiln and is corroded by harmful element |
| CN115094176A (en) * | 2022-07-20 | 2022-09-23 | 中冶华天工程技术有限公司 | Reinforced cooling wall for furnace from furnace bosh to lower part of furnace body |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2505718Y (en) * | 2001-10-15 | 2002-08-14 | 武汉钢铁设计研究总院 | Cooling wall with thin lining |
| CN201501888U (en) * | 2009-08-27 | 2010-06-09 | 李健伟 | Graphite block embedded for large-scale blast furnace cooling wall |
| CN201686704U (en) * | 2010-04-29 | 2010-12-29 | 北京首钢国际工程技术有限公司 | Composite structure integrating cast bricks and veneer bricks of cooling wall |
| CN205893300U (en) * | 2016-06-15 | 2017-01-18 | 中冶华天南京工程技术有限公司 | Blast furnace thin wall inside lining |
-
2016
- 2016-06-15 CN CN201610429481.7A patent/CN105907908B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105907908A (en) | 2016-08-31 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105907908B (en) | Blast furnace thin-walled liner and installation method | |
| CN104390461B (en) | Energy-saving cement rotary kiln lining and masonry process thereof | |
| CN106755680B (en) | A kind of middle-size and small-size heavy wall blast furnace furnace wall remodeling method and its structure | |
| CN103145427B (en) | A kind of blast furnace crude gas pipe lining spraying repair material and using method thereof | |
| CN205501341U (en) | Converter work lining structure | |
| CN201485477U (en) | Liner structure for crucible and hearth of blast furnace | |
| CN205893300U (en) | Blast furnace thin wall inside lining | |
| CN201381342Y (en) | Improve RH stove lower groove | |
| CN211367613U (en) | Cooling wall structure | |
| CN205066417U (en) | Rotary kiln kiln tail chute | |
| CN205077079U (en) | Cooling wall for "bosh of blast furnace | |
| CN107739766A (en) | The resistance to material segmentation building construction method of top combustion stove | |
| CN203559063U (en) | Blast furnace thin-wall lining | |
| CN2879083Y (en) | Integral multi-convex copper cooling wall | |
| CN201762351U (en) | Blast furnace for smelting sefstromite | |
| CN205501342U (en) | Converter furnace lining structure | |
| CN204268893U (en) | Cylinder type furnace lining interlocking occlusion structure | |
| CN201506765U (en) | Furnace door on clean type coke furnace | |
| CN207760369U (en) | Blast furnace shaft structure with variable thickness lining | |
| CN206375935U (en) | A kind of thin-skinned lining blast-furnace bosh structure | |
| CN206502778U (en) | A kind of coke dry quenching furnace bracket structure | |
| CN202139244U (en) | Iron-smelting blast furnace body structure | |
| CN110006257A (en) | A kind of adaptive inner ring wall construction of Light deformation | |
| CN2490532Y (en) | Bottom carbon lining build furnace of ore-smelting furnace | |
| CN110373507A (en) | A kind of method that blast furnace crucibe side wall brick fuel liner body inside forms casting liner body |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |