CN107299171A - A kind of method and resistance to material liner body for repairing the blast furnace crucibe side wall liner of resistance to material - Google Patents
A kind of method and resistance to material liner body for repairing the blast furnace crucibe side wall liner of resistance to material Download PDFInfo
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- CN107299171A CN107299171A CN201610230394.9A CN201610230394A CN107299171A CN 107299171 A CN107299171 A CN 107299171A CN 201610230394 A CN201610230394 A CN 201610230394A CN 107299171 A CN107299171 A CN 107299171A
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- 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
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Abstract
The invention discloses a kind of method and resistance to material liner body for repairing the blast furnace crucibe side wall liner of resistance to material.It the described method comprises the following steps：Screed-coat is made above the original refractory material liner body of blast furnace using the first amorphous refractory；(2) build fire resisting wall by laying bricks or stones on screed-coat with refractory brick, the second amorphous refractory is filled in making thermal conductivity liner body between remaining brick fuel and fire resisting wall.The adult of resistance to material includes remaining brick fuel and screed-coat.Remaining brick fuel towards blast furnace central side is provided with the fire resisting wall that is made by refractory brick, and the thermal conductivity liner body made by the second amorphous refractory is provided between fire resisting wall and remaining brick fuel.
Description
Technical field
The invention belongs to blast furnace ironmaking field, and in particular to a kind of method of repairing blast furnace crucibe side wall liner of resistance to material and
Resistance to material liner body.
Background technology
Blast furnace is smelted in production, when the part of bosh gas index brick fuel reaches by residual thickness after erosion
Blowing out overhaul is needed during 300mm or so, to prevent the major accident of producer cylinder burn-through.At present, the overhaul of blast furnace
Method is almost the brick fuel for removing whole bosh gas index, simultaneously because the relevance of structure, generally also have to
Furnace bottom brick fuel partially or completely is removed, the brick fuel removed is due to partly by erosion and demolishing process
Damage and can not be used again substantially.Then blast furnace producer have to purchase again whole cupola well brick fuel and
Other supplementary materials, are built by laying bricks or stones again according to design, to obtain an almost brand-new cupola well liner of resistance to material.
This overhaul mode is good in iron and steel enterprise's economic situation, production task be not it is especially nervous under conditions of be a kind of logical
Normal way.But, there is following obvious deficiency in this overhaul method：
The later stage of stove labour is actually arrived, the degree that blast furnace crucibe side wall carbon brick is etched is and its uneven.It is past
In addition to degree of the residual thickness for~300mm has been etched except the brick fuel of regional area, the whole big portion of cupola well
Brick fuel is divided still to be in relatively good state.But, local erosion causes the danger of hearth breakout to be huge
, no blast furnace operating person dare to undertake such security risk.So the overhaul of blast furnace except be partially according to
Preplan outside arrangement, the overwhelming majority be all in view of safety consideration and be forced carry out.
The cupola well brick fuel enormous amount that blast furnace overhaul is removed, and most of brick fuel actually also has suitable utilize
Value.Existing overhaul mode is all discarded after generally being removed.Particularly with large blast furnace, in order to ensure
The safety of cupola well, typically all employ it is superior, while expensive brick fuel builds cupola well.One 2500m3
Level blast furnace, the nearly kiloton of brick fuel that masonry heater bottom cupola well needs, cost reaches about 20,000,000 yuan.It is all discarded to cause tight
Waste again, purchase again needs substantial amounts of fund, it is clear that this can influence the economic benefit for smelting iron enterprise.
Meanwhile, cupola well is emptied, the brick fuel of bosh gas index is all removed and partially or completely removes furnace bottom brick fuel, again
Again building whole cupola well brick fuel and the supporting refractory lining of other species etc. by laying bricks or stones needs to take a substantial amount of time.
One 2500m3Level blast furnace carries out once such brick lining and builds work again, takes around 55 day time, adds
Other conveyance systems are general to complete once the time required to such overhaul to be 60-90 days.Except needing to spend a large amount of
Fund outside, blast furnace stop production caused by loss it is more huge.
So, a kind of brick fuel for as much as possible retaining and still having value in cupola well is invented, and simultaneously can be notable
Shorten the engineering time, to the resistance to material of blast furnace crucibe side wall carry out quick repairs safe and effective method have significantly
Meaning.
Content
It is an object of the invention to provide a kind of method that quick repairs are carried out to the resistance to material of blast furnace crucibe side wall and accordingly
Resistance to material liner body, to overcome the shortcomings of existing overhaul mode.The cupola well brick fuel still with certain residual thickness is made full use of,
Constructed by the repairing of short period, formed it is safely effectively, with Rational structure, do not bring into too into stove
The new bosh gas index liner body of many waters, both can significantly save the credit requirement of repairing, can substantially shorten again and repair
The time required for construction is managed, so as to bring considerable economic benefit to ironmaking enterprise.
On the one hand, the present invention proposes a kind of method for repairing the blast furnace crucibe side wall liner of resistance to material, its troubleshooting procedure bag
Include：(1) screed-coat is made above the original refractory material liner body of blast furnace using the first amorphous refractory；
(2) build fire resisting wall by laying bricks or stones on screed-coat with refractory brick, the second amorphous refractory is filled in remaining brick fuel
Thermal conductivity liner body is made between fire resisting wall.
Following preparation process can also be included before above-mentioned steps (one)：Work to blast furnace crucibe side wall brick fuel
End is by corroding, eligible for repair position, remove be bonded in Blast Furnace Bottom and bosh gas index handing-over position blast furnace it is former
There is the impurity of the upper surface of refractory material liner body, remove impurity, weaker zone and the change for being bonded in remaining brick fuel working end
Matter layer.
Above-mentioned steps (two) can include：, will be resistance to after the screed-coat solidification made of the first amorphous refractory
Firebrick is built by laying bricks or stones forms fire resisting wall until the total height of fire resisting wall reaches that design height stops on screed-coat；In fire resisting
The second amorphous refractory is filled between wall and remaining brick fuel.
Alternatively, above-mentioned steps (two) can include：When the screed-coat solidification made of the first amorphous refractory
Afterwards, laying fireproof bricks are formed to the first paragraph of fire resisting wall on screed-coat, in first paragraph and the remaining of fire resisting wall
The second amorphous refractory is filled between brick fuel；Then, by laying fireproof bricks on the first paragraph of fire resisting wall shape
Into the second segment of fire resisting wall, the second indefinite form fire proofed wood is filled between the second segment and remaining brick fuel of fire resisting wall
Material；So circulation, the total height to fire resisting wall reaches that design height stops.
Alternatively, above-mentioned steps (two) may include：Second amorphous refractory is applied or is sprayed on remaining charcoal
The hot face of brick；Laying fireproof bricks are formed into fire resisting wall until the total height of fire resisting wall reaches that design is high on screed-coat
Degree stops.
Alternatively, step (2) may include：Template is set in the hot surface side of remaining brick fuel, the second indefinite form is resistance to
Fiery material is filled between template and remaining brick fuel, is removed after the amorphous refractory of filling has some strength
Template；Laying fireproof bricks are formed into fire resisting wall until the total height of fire resisting wall reaches design height on screed-coat
Only.
On the other hand, the present invention proposes the method that another repairs the blast furnace crucibe side wall liner of resistance to material.Methods described
Comprise the following steps：(1) thermal conductivity lining is made at the position that is etched of remaining brick fuel with the second amorphous refractory
Body；(2) then, the fire resisting wall (5) with the first amorphous refractory in the original refractory material liner body of blast furnace
Build by laying bricks or stones screed-coat made on position；(3) thereafter, fire resisting wall is built by laying bricks or stones using the stove inner face of thermal conductivity liner body as guide face,
The 3rd amorphous refractory is filled between fire resisting wall and the stove inner face of thermal conductivity liner body.
Also include following preparation process before above-mentioned steps (one)：The working end of blast furnace crucibe side wall brick fuel is met with
To erosion, eligible for repair position, removing is bonded in Blast Furnace Bottom and the blast furnace at bosh gas index handing-over position is original resistance to
The impurity of the upper surface of fiery material liner body, remove the impurity for being bonded in remaining brick fuel working end, weaker zone and rotten
Layer.
Above-mentioned steps (one) can include：Second amorphous refractory is applied or is sprayed on the heat of remaining brick fuel
Face.
Alternatively, upper step (1) can include：Template is set in the hot surface side of remaining brick fuel, it is indefinite by second
Type refractory material is filled between template and remaining brick fuel, when the second amorphous refractory of filling has necessarily by force
Form removal after degree.
Above-mentioned steps (three) can include：, will after the screed-coat solidification made of the first amorphous refractory
Fire resisting wall is formed on screed-coat for laying fireproof bricks until the total height of fire resisting wall reaches that design height stops；Resistance to
The 3rd amorphous refractory is filled between wall with flues body thermal conductivity liner body.
Alternatively, above-mentioned steps (three) can include：Refractory wall is built by laying bricks or stones using the stove inner face of thermal conductivity liner body as guide face
During every block of refractory brick of body, the 3rd amorphous refractory is applied on refractory brick and the contact surface of thermal conductivity liner body.
Alternatively, above-mentioned steps (three) can include：It is using the stove inner face of thermal conductivity liner body as guide face that fire resisting is brick
The first paragraph that fire resisting wall is formed on screed-coat is built, is filled between the first paragraph and thermal conductivity liner body of fire resisting wall
3rd amorphous refractory；Then, laying fireproof bricks are formed into fire resisting wall on the first paragraph of fire resisting wall
Second segment, fills the 3rd amorphous refractory between the second segment and thermal conductivity liner body of fire resisting wall；So follow
Ring, the total height to fire resisting wall reaches that design height stops.
In addition, the invention also provides a kind of resistance to material liner body for being used to repair the blast furnace crucibe side wall liner of resistance to material.It is described
Resistance to material liner body includes remaining brick fuel and screed-coat.Being provided with towards blast furnace central side for remaining brick fuel is made by refractory brick
Fire resisting wall, the thermal conductivity liner body made by the second amorphous refractory is provided between fire resisting wall and remaining brick fuel.
The 3rd amorphous refractory can be additionally provided between thermal conductivity liner body and fire resisting wall.
Preferably, the refractory brick for building making fire resisting wall by laying bricks or stones is the fire resisting of the Al2O3 containing 65%~90% percentage by weight
Brick, or for be pasted with towards outside stove compressible fibrofelt, tapetum fibrosum and/or fiber mat, contain
The Al2O3 (percentage by weight) of 65%~90% percentage by weight refractory brick.
Preferably, the above-mentioned refractory brick for building making fire resisting wall by laying bricks or stones is that Al2O3 contents are 78%~88% percentage by weight
Refractory brick, or for be pasted with towards outside stove compressible fibrofelt, tapetum fibrosum and/or fiber mat,
The refractory brick of the percentage by weight of Al2O3 contents 78%~88%.
Preferably, the second amorphous refractory of thermal conductivity liner body is made containing 65%~95% percentage by weight
SiC castable or gravity flow pouring material or ramming mass or spray paint, or C percentage by weight is
75%~95% castable or gravity flow pouring material or ramming mass or spray paint, or C content contain with SiC
Amount and for 75%~95% percentage by weight castable or gravity flow pouring material or ramming mass or spray paint.
Preferably, the 3rd amorphous refractory for simultaneously containing Al2O3, C, SiC or simultaneously containing Al2O3,
Wantonly two kinds in C, SiC three or the castable only containing any of Al2O3, C, SiC three or gravity flow
Castable or ramming mass or refractory wass.
Preferably, the first amorphous refractory for making screed-coat be containing Al2O3 or simultaneously containing Al2O3,
SiC castable or gravity flow pouring material or ramming mass.
Compared with the existing overhaul mode of blast furnace crucibe, the beneficial effects of the invention are as follows：
The remaining charcoal of the cupola well being dropped in whole or in part in existing blast furnace crucibe overhaul mode is maximally utilised
Brick, it is to avoid the wasting of resources, saves the cost of repairs.
During using the present invention, it is not necessary to all empty cupola well, it is not necessary to remove to lay equal stress on and build whole cupola well brick fuels, so that
The blast furnace process time of overhaul occupancy is reduced, construction operation expense, the fecund pig iron is saved, saves cupola well
Buying expenses of brick fuel etc., can significantly improve the economic benefit of ironmaking enterprise.It is expected that a 2500m3Blast furnace use
The method and liner body of the present invention, can produce direct benefit more than 18,000,000 yuan.
Brief description of the drawings
Fig. 1 shows the method for the repairing blast furnace crucibe side wall liner of resistance to material of embodiments in accordance with the present invention 1 and made
Resistance to material liner body.
Fig. 2 shows the method and resistance to material lining of the according to embodiments of the present invention 2 repairing blast furnace crucibe side wall liner of resistance to material
Body.
Fig. 3 is the thermal conductivity lining in the method and resistance to material liner body of the repairing blast furnace crucibe side wall liner of resistance to material in Fig. 2
A kind of method and step schematic diagram of body.
Embodiment
The embodiment of the present invention is described in detail below in conjunction with accompanying drawing.It should be appreciated that this place
The embodiment of description is merely to illustrate and explain the present invention, and is not intended to limit the invention.
<Embodiment 1>
Fig. 1 shows the method for the repairing blast furnace crucibe side wall liner of resistance to material of embodiments in accordance with the present invention 1 and made
Resistance to material liner body.
The resistance to material liner body of embodiments in accordance with the present invention 1 includes remaining brick fuel 1, screed-coat 8.Screed-coat 8 for example may be used
To be made of the first amorphous refractory 7.Being provided with towards blast furnace central side for remaining brick fuel 1 is made by refractory brick 10
The fire resisting wall 5 of work, provided with the heat conduction made by amorphous refractory 2 between fire resisting wall 5 and remaining brick fuel 1
Property liner body 3.
The described refractory brick 10 for building making fire resisting wall 5 by laying bricks or stones is the Al2O3 (weights containing 65%~90% percentage by weight
Measure percentage) refractory brick, or for be pasted with towards outside stove compressible fibrofelt, tapetum fibrosum and/or
Fiber mat, Al2O3 (percentage by weight) containing 65%~90% percentage by weight refractory brick.Refractory brick 10
Al2O3Content is preferably 78%~88% percentage by weight.
The amorphous refractory 2 of described making thermal conductivity liner body 3 is the SiC containing 65%~95% percentage by weight
The castable or gravity flow pouring material or ramming mass or spray paint of (percentage by weight) or be C weight
Percentage for 75%~95% (percentage by weight) castable or gravity flow pouring material or ramming mass or spray paint,
Either C content and SiC content and castable or gravity flow pouring material for 75%~95% percentage by weight or
Ramming mass or spray paint.
The first amorphous refractory (7) of described making screed-coat 8 is to contain Al2O3Or contain simultaneously
Al2O3, SiC castable or gravity flow pouring material or ramming mass.
The method of the repairing blast furnace crucibe side wall liner of resistance to material of embodiments in accordance with the present invention 1 comprises the following steps：(1)
Screed-coat 8 is made above the original refractory material liner body 6 of blast furnace using the first amorphous refractory 7；(2)
Afterwards, for example fire resisting wall 5 is built by laying bricks or stones on screed-coat 8 with refractory brick 10 after screed-coat 8 solidifies, will be indefinite
Type refractory material 2, which is filled between remaining brick fuel 1 and fire resisting wall 5, makes thermal conductivity liner body 3.
It is following preparation process before above-mentioned steps (one)：The working end of blast furnace crucibe side wall brick fuel is invaded
Erosion, eligible for repair position, remove the original fire proofed wood of blast furnace for being bonded in Blast Furnace Bottom and bosh gas index handing-over position
Expect the impurity of the upper surface of liner body 6, remove impurity, weaker zone and the metamorphic layer for being bonded in the remaining working end of brick fuel 1.
The step of the present embodiment 1 in (two), building fire resisting wall 5 by laying bricks or stones can be with following several ways or its progress：
After the screed-coat 8 made of the first amorphous refractory 7 solidifies, refractory brick 10 is built by laying bricks or stones in screed-coat
Fire resisting wall 5 is formed on 8 until the total height of fire resisting wall 5 reaches that design height stops；The first of fire resisting wall 5
The second amorphous refractory 2 is filled between section and remaining brick fuel 1.
After screed-coat 8 solidifies by laying bricks or stones, refractory brick 10 is built to the first paragraph that fire resisting wall 5 is formed on screed-coat 8,
The filling formation respective heights of amorphous refractory 2 leads between the first paragraph and remaining brick fuel 1 of fire resisting wall 5
Hot liner body 3；Then, refractory brick 10 is built by laying bricks or stones and the of fire resisting wall 5 is formed on the first paragraph of fire resisting wall 5
Two sections, filling amorphous refractory 2 re-forms corresponding between the second segment and remaining brick fuel 1 of fire resisting wall 5
The thermal conductivity liner body 3 of height；So circulation, the total height to fire resisting wall 5 and thermal conductivity liner body 3 reaches that design is high
Degree stops.
The second amorphous refractory 2 is applied or is sprayed on the hot face of remaining brick fuel 2 first；Then refractory brick 10 is built
Build and form fire resisting wall 5 on screed-coat 8 until the total height of fire resisting wall 5 reaches that design height stops.
Remaining brick fuel 1 hot surface side set template 9, by the second amorphous refractory 2 be filled in template 9 with it is residual
Deposit between brick fuel 1, the form removal after amorphous refractory (2) of filling has some strength；By refractory brick
10 build by laying bricks or stones and form fire resisting wall 5 on screed-coat 8 until the total height of fire resisting wall 5 reaches that design height stops.
Above-mentioned first amorphous refractory and the second amorphous refractory can be identical or different known resistance to
Fiery material.
<Embodiment 2>
Fig. 2 shows the method and resistance to material lining of the according to embodiments of the present invention 2 repairing blast furnace crucibe side wall liner of resistance to material
Body.
Similar to above-mentioned according to embodiments of the present invention 1 resistance to material liner body, according to embodiments of the present invention 2 resistance to material liner body
Also remaining brick fuel 1, thermal conductivity liner body 3, fire resisting wall 5, screed-coat 8 are included.Different from above-mentioned according to the present invention
The resistance to material liner body of embodiment 1, according to embodiments of the present invention 2 resistance to material liner body also includes amorphous refractory 11.
Remaining brick fuel 1 towards blast furnace central side is provided with the fire resisting wall 5 that is made by refractory brick 10, fire resisting wall 5 with it is residual
Deposit between brick fuel 1 provided with the indefinite form fire resisting of thermal conductivity liner body 3 and the 3rd made by the second amorphous refractory 2
Material 11.Amorphous refractory 11 is located between thermal conductivity liner body 3 and fire resisting wall 5.
Described refractory brick 10, the first amorphous refractory 2, the first amorphous refractory 7 and embodiment 1
It is identical.
Described amorphous refractory 11 is to contain Al simultaneously2O3, C, SiC or contain Al simultaneously2O3、C、
Wantonly two kinds in SiC three or only contain Al2O3, any of C, SiC three castable or gravity flow pouring material
Or ramming mass or refractory wass.
Fig. 3 is the thermal conductivity lining in the method and resistance to material liner body of the repairing blast furnace crucibe side wall liner of resistance to material in Fig. 2
A kind of method and step schematic diagram of body.
Referring to Fig. 3, the method for the repairing blast furnace crucibe side wall liner of resistance to material of embodiments in accordance with the present invention 2 is including following
Step：(1) thermal conductivity liner body 3 is made at the position that is etched of remaining brick fuel 1 with amorphous refractory 2；(2)
Then, fire resisting wall 5 with the first amorphous refractory 7 in the original refractory material liner body 6 of blast furnace is built by laying bricks or stones
Screed-coat 8 is made on position；(3) thereafter, it is that guide face builds fire resisting by laying bricks or stones paragraph by paragraph with the stove inner face 4 of thermal conductivity liner body 3
The 3rd amorphous refractory 11 is filled between the stove inner face 4 of wall 5, fire resisting wall 5 and thermal conductivity liner body 3.
It is following preparation process before above-mentioned steps (one)：The working end of blast furnace crucibe side wall brick fuel is invaded
Erosion, eligible for repair position, remove the original fire proofed wood of blast furnace for being bonded in Blast Furnace Bottom and bosh gas index handing-over position
Expect the impurity of the upper surface of liner body 6, remove impurity, weaker zone and the metamorphic layer for being bonded in the remaining working end of brick fuel 1.
In the step of 2 in embodiment (one), making thermal conductivity liner body can be carried out using following two methods：
Second amorphous refractory 2 is applied or is sprayed on the hot face of remaining brick fuel 1.Or using template auxiliary.
Referring to Fig. 3, template 9 is set in the hot surface side of remaining brick fuel 1, the second amorphous refractory 2 is filled in template
Between 9 and remaining brick fuel 1, form removal after the second amorphous refractory (2) of filling has some strength.
(3) can be carried out in following two modes the step of embodiment 2：
The 3rd amorphous refractory is directly coated with to build by laying bricks or stones.Specifically, it is to lead with the stove inner face 4 of thermal conductivity liner body 3
When every block of refractory brick 10 of fire resisting wall 5 is built in face by laying bricks or stones, applied on refractory brick 10 and the contact surface of thermal conductivity liner body 3
Apply the 3rd amorphous refractory 11.
Build filling by laying bricks or stones paragraph by paragraph.It is that guide face builds refractory brick 10 in screed-coat 8 by laying bricks or stones with the stove inner face 4 of thermal conductivity liner body 3
The upper first paragraph for forming fire resisting wall 5, fills the 3rd between the first paragraph and thermal conductivity liner body 3 of fire resisting wall 5
Amorphous refractory 11；Then, refractory brick 10 is built by laying bricks or stones on the first paragraph of fire resisting wall 5 formation fire resisting wall
5 second segment, fills the 3rd amorphous refractory between the second segment and thermal conductivity liner body 3 of fire resisting wall 5
11；So circulation, the total height to fire resisting wall 5 reaches that design height stops.Or, with thermal conductivity liner body 3
When stove inner face 4 is that guide face builds every block of refractory brick 10 of fire resisting wall 5 by laying bricks or stones, in refractory brick 10 and thermal conductivity liner body 3
Contact surface on apply the 3rd amorphous refractory 11.
The preferred embodiment of the present invention is described in detail above in association with accompanying drawing, still, the present invention is not limited to above-mentioned
Detail in embodiment, in the range of the technology design of the present invention, can enter to technical scheme
The a variety of simple variants of row, these simple variants belong to protection scope of the present invention.
It is further to note that each particular technique feature described in above-mentioned embodiment, not
In the case of contradiction, it can be combined by any suitable means.In order to avoid unnecessary repetition, this hair
It is bright that various possible combinations are no longer separately illustrated.
In addition, various embodiments of the present invention can be combined randomly, if its without prejudice to
The thought of the present invention, it should equally be considered as content disclosed in this invention.
Claims (20)
1. a kind of method for repairing the blast furnace crucibe side wall liner of resistance to material, it is characterised in that methods described includes following step
Suddenly：
(1) made using the first amorphous refractory (7) above the original refractory material liner body (6) of blast furnace
Make screed-coat；
(2) fire resisting wall (5) is built by laying bricks or stones on screed-coat (8) with refractory brick (10), by the second indefinite form fire resisting
Material (2), which is filled between remaining brick fuel (1) and fire resisting wall (5), makes thermal conductivity liner body (3).
2. the method as described in claim 1, it is characterised in that also include before above-mentioned steps (one) following
Preparation process：
To the working end of blast furnace crucibe side wall brick fuel by corroding, eligible for repair position, removing is bonded in State of Blast Furnace
The impurity of the upper surface of the original refractory material liner body (6) of blast furnace at bottom and bosh gas index handing-over position, removing are bonded in
Impurity, weaker zone and the metamorphic layer of remaining brick fuel (1) working end.
3. method as claimed in claim 1 or 2, it is characterised in that the step (2) includes：
After screed-coat (8) solidification made of the first amorphous refractory (7), refractory brick (10) is built
Build and fire resisting wall (5) is formed on screed-coat (8) until the total height of fire resisting wall (5) reaches that design height stops；
The second amorphous refractory (2) is filled between fire resisting wall (5) and remaining brick fuel (1).
4. method as claimed in claim 1 or 2, it is characterised in that the step (2) includes：
After screed-coat (8) solidification made of the first amorphous refractory (7), refractory brick (10) is built
The first paragraph that fire resisting wall (5) are formed on screed-coat (8) is built, in first paragraph and the remaining of fire resisting wall (5)
The second amorphous refractory (2) is filled between brick fuel (1)；Then, refractory brick (10) is built by laying bricks or stones in refractory wall
The second segment of fire resisting wall (5) is formed on the first paragraph of body (5), in second segment and the remaining of fire resisting wall (5)
The second amorphous refractory (2) is filled between brick fuel (1)；So circulation, to total height of fire resisting wall (5)
Degree reaches that design height stops.
5. method as claimed in claim 1 or 2, it is characterised in that the step (2) includes：
Second amorphous refractory (2) is applied or is sprayed on remaining brick fuel (2) hot face；
Refractory brick (10) is built by laying bricks or stones fire resisting wall (5) is formed on screed-coat (8) up to fire resisting wall (5)
Total height reaches that design height stops.
6. method as claimed in claim 1 or 2, it is characterised in that the step (2) includes：
Template (9) is set in the hot surface side of remaining brick fuel (1), the second amorphous refractory (2) is filled in
Between template (9) and remaining brick fuel (1), torn open after the amorphous refractory (2) of filling has some strength
Removing template；
Refractory brick (10) is built by laying bricks or stones fire resisting wall (5) is formed on screed-coat (8) up to fire resisting wall (5)
Total height reaches that design height stops.
7. a kind of method for repairing the blast furnace crucibe side wall liner of resistance to material, it is characterised in that methods described includes following step
Suddenly：
(1) thermal conductivity is made at the position that is etched of remaining brick fuel (1) with the second amorphous refractory (2)
Liner body (3)；
(2) then, with the first amorphous refractory (7) on the original refractory material liner body (6) of blast furnace
Building by laying bricks or stones for fire resisting wall (5) makes screed-coat (8) on position；
(3) thereafter, it is that guide face builds fire resisting wall (5) by laying bricks or stones with the stove inner face (4) of thermal conductivity liner body (3), it is resistance to
The 3rd amorphous refractory (11) is filled between wall with flues body (5) and the stove inner face (4) of thermal conductivity liner body (3).
8. method as claimed in claim 7, it is characterised in that also include before the step (1) following
Preparation process：
To the working end of blast furnace crucibe side wall brick fuel by corroding, eligible for repair position, removing is bonded in State of Blast Furnace
Bottom and bosh gas index join the impurity of the upper surface of the original refractory material liner body (6) of blast furnace at position, remove bonding
Impurity, weaker zone and metamorphic layer in remaining brick fuel (1) working end.
9. method as claimed in claim 7 or 8, it is characterised in that the step (1) includes：
Second amorphous refractory (2) is applied or is sprayed on the hot face of remaining brick fuel (1).
10. method as claimed in claim 7 or 8, it is characterised in that the step (1) includes：
Template (9) is set in the hot surface side of remaining brick fuel (1), the second amorphous refractory (2) is filled in
Between template (9) and remaining brick fuel (1), when the second amorphous refractory (2) of filling has some strength
Form removal afterwards.
11. method as claimed in claim 7 or 8, it is characterised in that the step (3) includes：
After screed-coat (8) solidification made of the first amorphous refractory (7), refractory brick (10) is built
Build and fire resisting wall (5) is formed on screed-coat (8) until the total height of fire resisting wall (5) reaches that design height stops；
The 3rd amorphous refractory (11) is filled between fire resisting wall (5) thermal conductivity liner body (3).
12. method as claimed in claim 7 or 8, it is characterised in that the step (3) includes：
It is every block of refractory brick (10) that guide face builds fire resisting wall (5) by laying bricks or stones with the stove inner face (4) of thermal conductivity liner body (3)
When, apply the 3rd amorphous refractory (11) on refractory brick (10) and the contact surface of thermal conductivity liner body (3).
13. method as claimed in claim 7 or 8, it is characterised in that the step (3) includes：
It is that guide face builds refractory brick (10) on screed-coat (8) by laying bricks or stones with the stove inner face (4) of thermal conductivity liner body (3)
The first paragraph of fire resisting wall (5) is formed, is filled out between the first paragraph and thermal conductivity liner body (3) of fire resisting wall (5)
Fill the 3rd amorphous refractory (11)；Then, refractory brick (10) is built by laying bricks or stones the first of fire resisting wall (5)
The second segment of fire resisting wall (5) is formed in section, fire resisting wall (5) second segment and thermal conductivity liner body (3) it
Between fill the 3rd amorphous refractory (11)；So circulation, the total height to fire resisting wall (5) reaches design
Highly stop.
14. a kind of resistance to material liner body for being used to repair the blast furnace crucibe side wall liner of resistance to material, the resistance to material liner body includes remaining
Brick fuel (1) and screed-coat (8), it is characterised in that
Being provided with towards blast furnace central side by the fire resisting wall (5) of refractory brick (10) making for remaining brick fuel (1), it is resistance to
The thermal conductivity made by the second amorphous refractory (2) is provided between wall with flues body (5) and remaining brick fuel (1) to serve as a contrast
Body (3).
15. resistance to material liner body as claimed in claim 14, it is characterised in that in thermal conductivity liner body (3) and fire resisting
The 3rd amorphous refractory (11) is additionally provided between wall (5).
16. the resistance to material liner body of the repairing blast furnace crucibe side wall liner of resistance to material as described in claims 14 or 15, it is special
Levy for：The refractory brick (10) for building making fire resisting wall (5) by laying bricks or stones is the Al2O3 containing 65%~90% percentage by weight
Refractory brick, or for be pasted with towards outside stove compressible fibrofelt, tapetum fibrosum and/or fiber mat,
The refractory brick of Al2O3 (percentage by weight) containing 65%~90% percentage by weight.
17. the resistance to material liner body of the repairing blast furnace crucibe side wall liner of resistance to material as described in claims 14 or 15, it is special
Levy for：The refractory brick (10) for building making fire resisting wall (5) by laying bricks or stones is that Al2O3 contents are 78%~88% weight percent
The refractory brick of ratio, or for be pasted with towards outside stove compressible fibrofelt, tapetum fibrosum and/or fiber mat,
The refractory brick of the percentage by weight of Al2O3 contents 78%~88%.
18. the resistance to material liner body of the repairing blast furnace crucibe side wall liner of resistance to material as described in claims 14 or 15, it is special
Levy for：The second amorphous refractory (2) for making thermal conductivity liner body (3) is to contain 65%~95% percentage by weight
SiC castable or gravity flow pouring material or ramming mass or spray paint, or C percentage by weight is
75%~95% castable or gravity flow pouring material or ramming mass or spray paint, or C content contain with SiC
Amount and for 75%~95% percentage by weight castable or gravity flow pouring material or ramming mass or spray paint.
19. the resistance to material liner body of the repairing blast furnace crucibe side wall liner of resistance to material as described in claims 14 or 15, it is special
Levy for：3rd amorphous refractory (11) for simultaneously containing Al2O3, C, SiC or simultaneously containing Al2O3,
Wantonly two kinds in C, SiC three or the castable only containing any of Al2O3, C, SiC three or gravity flow
Castable or ramming mass or refractory wass.
20. the resistance to material liner body of the repairing blast furnace crucibe side wall liner of resistance to material as described in claims 14 or 15, it is special
Levy for：The first amorphous refractory (7) for making screed-coat (8) be containing Al2O3 or simultaneously containing Al2O3,
SiC castable or gravity flow pouring material or ramming mass.
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| CN201610230394.9A CN107299171B (en) | 2016-04-14 | 2016-04-14 | Method for repairing refractory lining on side wall of blast furnace hearth and refractory lining body |
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| CN107299171B CN107299171B (en) | 2020-03-20 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110373507A (en) * | 2019-08-22 | 2019-10-25 | 北京瑞尔非金属材料有限公司 | A kind of method that blast furnace crucibe side wall brick fuel liner body inside forms casting liner body |
| CN110542485A (en) * | 2019-10-15 | 2019-12-06 | 北京瑞尔非金属材料有限公司 | device for measuring temperature of blast furnace molten iron main channel lining and manufacturing method |
| CN115820958A (en) * | 2022-11-30 | 2023-03-21 | 武汉钢铁有限公司 | Method for repairing blast furnace hearth |
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| CN102706161A (en) * | 2012-05-09 | 2012-10-03 | 江西中烨高新技术有限公司 | Construction technology for preparing kiln lining by compounding ceramics and unshaped refractory materials |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102706161A (en) * | 2012-05-09 | 2012-10-03 | 江西中烨高新技术有限公司 | Construction technology for preparing kiln lining by compounding ceramics and unshaped refractory materials |
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| 朱仁良等: "《宝钢大型高炉操作与管理》", 30 September 2015, 冶金工业出版社 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110373507A (en) * | 2019-08-22 | 2019-10-25 | 北京瑞尔非金属材料有限公司 | A kind of method that blast furnace crucibe side wall brick fuel liner body inside forms casting liner body |
| CN110542485A (en) * | 2019-10-15 | 2019-12-06 | 北京瑞尔非金属材料有限公司 | device for measuring temperature of blast furnace molten iron main channel lining and manufacturing method |
| CN110542485B (en) * | 2019-10-15 | 2024-04-09 | 北京瑞尔非金属材料有限公司 | Measuring device and manufacturing method for lining temperature of main runner of blast furnace molten iron |
| CN115820958A (en) * | 2022-11-30 | 2023-03-21 | 武汉钢铁有限公司 | Method for repairing blast furnace hearth |
| CN115820958B (en) * | 2022-11-30 | 2024-04-16 | 武汉钢铁有限公司 | Repairing method for blast furnace hearth |
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| CN107299171B (en) | 2020-03-20 |
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