CN106367550A - Structure and repair method for eliminating leak coal gas of blast furnace bottom - Google Patents
Structure and repair method for eliminating leak coal gas of blast furnace bottom Download PDFInfo
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- CN106367550A CN106367550A CN201610900204.XA CN201610900204A CN106367550A CN 106367550 A CN106367550 A CN 106367550A CN 201610900204 A CN201610900204 A CN 201610900204A CN 106367550 A CN106367550 A CN 106367550A
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- blast furnace
- closing
- furnace bottom
- coal gas
- steel plate
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
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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
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Abstract
The invention belongs to the technical field of blast furnace gas, and relates to a structure and repair method for eliminating leak coal gas of a blast furnace bottom. By means of the steps of sealed groove forming, steel plate implantation, steel plate welding, sealing material filling, sealing and grouting, the whole blast furnace bottom is wrapped in a sealed space on a furnace bottom base, and the coal gas cannot leak to the outside of the sealed space even though a channel can be formed between poured concrete and a furnace body interface or between the concrete and the base through the coal gas. The structure and repair method have the beneficial effects that the problem of the leak coal gas of the blast furnace bottom can be effectively solved, and the defects that the blast furnace bottom is poorly sealed, or space sealing cannot be carried out at the furnace bottom can be overcome; and the overall structure and materials of an original blast furnace cannot be damaged, after construction is finished, the blast furnace can be directly put into use without baking, and production is fast resumed.
Description
Technical field
The present invention relates to a kind of solve structure and the method for repairing and mending that Blast Furnace Bottom leaks coal gas, belong to blast furnace gas technology neck
Domain.
Background technology
The main thoroughfare of Blast Furnace Bottom gas leak is to flow to furnace foundation cooling tube along the gap between furnace shell and cooling wall
Top, then by the void layer (i.e. charcoal element packing layer) between furnace shell and furnace foundation heat resisting foundation pier, flow at furnace foundation bearing soleplate to stove
External leakage spreads.
General method for repairing and mending is directly to take mud jacking to repair in furnace bottom, and this method not can solve Lou coal gas and asks
Topic, in use for some time, coal gas also can be from original passage toward blast furnace external leakage.
Content of the invention
In order to overcome the deficiencies in the prior art, the present invention provides a kind of structure solving Blast Furnace Bottom leakage coal gas and repairing side
Method.
A kind of method for repairing and mending solving Blast Furnace Bottom leakage coal gas, as follows containing step；By break a seal locked groove, implant plate,
Whole Blast Furnace Bottom is wrapped in one on furnace bottom pedestal and more closes by welding steel, filling sealed material, sealing, mud jacking step
Space in, even if coal gas cast concrete and body of heater interface or concrete and pedestal between can form passage, coal gas
Also the external world of closing space will not be leaked into.
A kind of solve Blast Furnace Bottom leak coal gas structure, on Blast Furnace Bottom concrete foundation connect hard plastic screed,
Heat-resisting brick setting, carbon packing layer and last furnace shell, the inner chamber of last furnace shell connects carbon packing layer, the inner chamber of carbon packing layer
Connect heat-resisting brick setting, the inner chamber of heat-resisting brick setting connects blast furnace heat resisting foundation pier and hard plastic screed, Blast Furnace Bottom coagulation
The opposite side of soil base has the first enclosed slot, and the first enclosed slot is trapezoidal, fills microdilatancy plasticity clay in the first enclosed slot, micro-
Expand plastic hinge mud drum and wrap up in closing angle steel and closing steel plate, closing angle steel is l type, closing steel plate is connected to closing and uses
The side composition section of angle steel l type is the rectangle of opening, and the height of closing steel plate is more than the height of closing angle steel, in closing
The area filling microdilatancy grouting material being surrounded with steel plate and last furnace shell, the surface junction steel plate closing of microdilatancy grouting material.
The size of the first enclosed slot is upper bottom 200mm, go to the bottom 220mm and high 150mm.
A kind of solve Blast Furnace Bottom leak coal gas structure, on Blast Furnace Bottom concrete foundation connect hard plastic screed,
Heat-resisting brick setting, carbon packing layer and last furnace shell, the inner chamber of last furnace shell connects carbon packing layer, the inner chamber of carbon packing layer
Connect heat-resisting brick setting, the inner chamber of heat-resisting brick setting connects blast furnace heat resisting foundation pier and hard plastic screed, Blast Furnace Bottom coagulation
The opposite side of soil base has the second enclosed slot, and the second enclosed slot is rectangle, fills microdilatancy plasticity clay in the second enclosed slot, micro-
Expand plastic hinge mud drum and wrap up in closing steel plate, the area filling microdilatancy grouting material surrounding in closing steel plate and last furnace shell,
The surface junction steel plate closing of microdilatancy grouting material.
The size of the second enclosed slot is width 30mm and height 200mm.
It is an advantage of the invention that the problem that Blast Furnace Bottom leaks coal gas can be efficiently solved, overcome Blast Furnace Bottom closing bad
Or the defects such as confined space cannot be carried out in furnace bottom.Overall structure and the material of original blast furnace will not be destroyed, after construction terminates,
Need not toast, use can be direct plungeed into, quickly resume production.
Brief description
When considered in conjunction with the accompanying drawings, by referring to detailed description below, can more completely more fully understand the present invention with
And easily learn the adjoint advantage of many of which, but accompanying drawing described herein is used for providing a further understanding of the present invention,
Constitute the part of the present invention, the schematic description and description of the present invention is used for explaining the present invention, does not constitute to this
Bright improper restriction, such as schemes wherein:
Fig. 1 builds schematic diagram by laying bricks or stones for Blast Furnace Bottom；
Fig. 2-1 is one of furnace bottom ground fluting signal figure；
Fig. 2-2 is two figures of furnace bottom ground fluting signal；
Fig. 3 is pre-buried closing steel construction schematic diagram；
Fig. 4-1 is one of enclosed slot closing signal figure；
Fig. 4-2 closes two figures of signal for enclosed slot；
Fig. 5-1 is one of partial cross section's signal figure after completion；
Fig. 5-2 is two figures of partial cross section's signal after completion；
In figure: 1 Blast Furnace Bottom concrete foundation；2 blast furnace heat resisting foundation piers；3 heat-resisting brick settings；4 carbon packing layers；5 blast furnaces
Furnace shell；6 hard plastic screeds；7 enclosed slots；8 closing angle steel；9 closing steel plates；10 microdilatancy plasticity clay；11 is micro- swollen
Swollen grouting material.
The present invention is further described with reference to the accompanying drawings and examples.
Specific embodiment
Obviously, those skilled in the art belong to the guarantor of the present invention based on the many modifications and variations that spirit of the invention is done
Shield scope.
Those skilled in the art of the present technique are appreciated that unless expressly stated, singulative " " used herein, "
Individual ", " described " and " being somebody's turn to do " may also comprise plural form.It is to be further understood that wording " bag used in this specification
Include " refer to there is described feature, integer, step, operation, element and/or assembly, but it is not excluded that exist or add one or
Other features multiple, integer, step, operation, element, assembly and/or their group.It should be understood that when title element, assembly quilt
When ' attach ' to another element, assembly, it can be directly connected to other elements or assembly, or can also there is cental element
Part or assembly.Wording "and/or" used herein includes one or more associated any cell of item and complete listed
Portion combines.
Those skilled in the art of the present technique are appreciated that unless otherwise defined, and all terms used herein (include technology art
Language and scientific terminology) there is general understanding identical meaning with the those of ordinary skill in art of the present invention.
For ease of the understanding to the embodiment of the present invention, explanation will be further explained below, and each embodiment will be not
Constitute the restriction to the embodiment of the present invention.
Embodiment 1: a kind of method for repairing and mending solving Blast Furnace Bottom leakage coal gas, by the locked groove that breaks a seal, implant plate, welding steel
Plate, fill sealed material, sealing, mud jacking step, whole Blast Furnace Bottom is wrapped on furnace bottom pedestal by the space of a more closing
Interior, even if coal gas can form passage between the concrete and body of heater interface or concrete and pedestal of cast, also will not leak
To the external world of closing space, the problem that Blast Furnace Bottom leaks coal gas thus can be efficiently solved.
Also contain following steps；
Step 1, first, drives the first enclosed slot 7 for one week along blast furnace on concrete foundation 1 surface, and groove width 200mm is deep
150mm, trench bottom is suitable for reading more bigger than groove, as Suo Shi Fig. 2-1 in order to after preventing cast the long-time stress of matrix after with
Original place base departs from.
Step 2, it is implanted into closing steel construction in the first above-mentioned enclosed slot 7 using anchoring piece within one week along blast furnace, such as scheme
Shown in 4-1.It is embedded in the closing steel construction part in the first enclosed slot 7, as shown in figure 3, being the angle steel with 63 × 63 × 8mm
8 steel plates 9 thick with 10mm are welded, and both contact surfaces should beat groove full weld it is ensured that the tensile strength of binding site.
Step 3, with microdilatancy plasticity clay 10, the steel construction piece being welded first is embedded in the first enclosed slot 7 of ground 1
In, as shown in Fig. 4-1.The effect of this clay is: prevents from gap between the later steel construction of time length and material and is formed
Gas passage.The probability of gas leak can be substantially reduced after being used herein as microdilatancy plasticity clay 10, and wettability good with
The contact in steel plate section is tightr.In addition, surface is more smooth after closing, more conducively descend the Engineering Quality Control of surface construction.
Step 4, finally pour in the space of closing using microdilatancy grouting material 11, in closing space, fill microdilatancy grouting
Material 11 after closed using steel plate, due to there may be gap, reuse grouting material press-in fill up, after the completion of schematic diagram such as Fig. 5-1.
Embodiment 2: a kind of method for repairing and mending solving Blast Furnace Bottom leakage coal gas, containing following steps；
Step 1, first, drives the second enclosed slot 12 for one week along blast furnace on concrete foundation 1 surface, and groove width 30mm is deep
200mm, as shown in Fig. 2-2.
Step 2, in the second above-mentioned enclosed slot 12 along blast furnace one week implantation closing steel construction piece 9, as Fig. 4-2 institute
Show.
Step 3, with microdilatancy plasticity clay 10, the steel construction piece being welded 9 is first embedded in the second enclosed slot of ground 1
In 12, as shown in the Fig. 4-2.The effect of this clay is: prevents gap between the later steel construction of time length and material and shape
Become gas passage.The probability of gas leak can be substantially reduced after being used herein as microdilatancy plasticity clay 10, and wettability is good
Tightr with the contact in steel plate section.In addition, surface is more smooth after closing, more conducively descend the construction quality control of surface construction
System.
Step 4, finally pour in the space of closing using microdilatancy grouting material 11, in closing space, fill microdilatancy grouting
Material 11 after closed using steel plate, due to there may be gap, reuse grouting material press-in fill up, after the completion of schematic diagram such as Fig. 5-2.
Embodiment 3: a kind of method for repairing and mending solving Blast Furnace Bottom leakage coal gas, including Kaifeng locked groove, implant plate, welding steel
The steps such as plate, filling sealed material, sealing, mud jacking.A kind of method for repairing and mending solving Blast Furnace Bottom leakage coal gas, is behaviour outside blast furnace
Make, construct, overall structure and the material of original blast furnace will not be destroyed.After construction terminates, need not toast, use can be direct plungeed into,
Quickly resume production, efficiently solve the problem of Blast Furnace Bottom gas leak.
A kind of method for repairing and mending solving Blast Furnace Bottom leakage coal gas, solves Blast Furnace Bottom leakage coal gas；First in Blast Furnace Bottom ground
Upper Kaifeng locked groove；It is implanted into steel plate in enclosed slot；The steel plate that enclosed slot is implanted into is u shape；Pour into a mould a kind of heat-resisting in enclosed slot
Material；Heat proof material has the characteristics such as microdilatancy, plastically deformable；After integrally hardening Deng material, mud jacking operation is taken to fill up empty
Gap.
Embodiment 3: as shown in Figure of description, a kind of structure solving Blast Furnace Bottom leakage coal gas, Blast Furnace Bottom concrete
Hard plastic screed 6, heat-resisting brick setting 3, carbon packing layer 4 and last furnace shell 5, the inner chamber of last furnace shell 5 are connected on ground 1
Connect carbon packing layer 4, the inner chamber of carbon packing layer 4 connects heat-resisting brick setting 3, and the inner chamber connection blast furnace of heat-resisting brick setting 3 is resistance to
Hot radical pier 2 and hard plastic screed 6, the opposite side of Blast Furnace Bottom concrete foundation 1 has the first enclosed slot 7, the first enclosed slot 7
For trapezoidal, filling microdilatancy plasticity clay 10 in the first enclosed slot 7, microdilatancy plasticity clay 10 parcel closing angle steel 8 and envelope
Close with steel plate 9, closing angle steel 8 is l type, the side composition section that closing steel plate 9 is connected to closing angle steel 8l type is to open
The rectangle of mouth, closing is more than the height of closing angle steel 8 with the height of steel plate 9, surrounds with last furnace shell 5 in closing steel plate 9
Area filling microdilatancy grouting material 11, the surface junction steel plate closing of microdilatancy grouting material 11.
The size of the first enclosed slot 7 is upper bottom 200mm, go to the bottom 220mm and high 150mm.First enclosed slot 7 is around State of Blast Furnace
Shell 5.
Embodiment 4: as shown in Figure of description, a kind of structure solving Blast Furnace Bottom leakage coal gas, Blast Furnace Bottom concrete
Hard plastic screed 6, heat-resisting brick setting 3, carbon packing layer 4 and last furnace shell 5, the inner chamber of last furnace shell 5 are connected on ground 1
Connect carbon packing layer 4, the inner chamber of carbon packing layer 4 connects heat-resisting brick setting 3, and the inner chamber connection blast furnace of heat-resisting brick setting 3 is resistance to
Hot radical pier 2 and hard plastic screed 6, the opposite side of Blast Furnace Bottom concrete foundation 1 has the second enclosed slot 12, the second enclosed slot
12 is rectangle, fills microdilatancy plasticity clay 10 in the second enclosed slot 12, and microdilatancy plasticity clay 10 wraps up closing steel plate 9,
The area filling microdilatancy grouting material 11 surrounding with last furnace shell 5 in closing steel plate 9, the surface of microdilatancy grouting material 11 connects
Steel plate is closed.
The size of the second enclosed slot 12 is width 30mm and height 200mm.Second enclosed slot 12 is around last furnace shell 5.
As described above, being explained to embodiments of the invention, but as long as essentially without depart from this
Bright inventive point and effect can have a lot of deformation, and this will be readily apparent to persons skilled in the art.Therefore, this
The variation of sample is also integrally incorporated within protection scope of the present invention.
Claims (7)
1. a kind of solve Blast Furnace Bottom leak coal gas method for repairing and mending it is characterised in that containing step as follows；By locked groove, the plant of breaking a seal
Enter steel plate, welding steel, fill sealed material, sealing, mud jacking step, whole Blast Furnace Bottom is wrapped in one relatively by furnace bottom pedestal
In space for closing, even if coal gas can be formed between the concrete and body of heater interface or concrete and pedestal of cast leading to
Road, coal gas also will not leak into the external world of closing space.
2. a kind of Blast Furnace Bottom that solves according to claim 1 leaks the method for repairing and mending of coal gas it is characterised in that also containing step
Suddenly as follows；
Step 1, broke a seal on concrete ground primary surface locked groove along blast furnace one week, groove width 200mm, deep 150mm, and trench bottom is than on groove
Mouth is bigger；
Step 2, it is implanted into closing steel construction in above-mentioned enclosed slot using anchoring piece within one week along blast furnace, be embedded in enclosed slot
Closing steel construction part, be welded with the thick steel plate of the angle steel of 63 × 63 × 8mm and 10mm, both contact surfaces should beat slope
Mouthful full weld is it is ensured that the tensile strength of binding site；
Step 3, with microdilatancy plasticity clay, the steel construction piece being welded first is embedded in the enclosed slot of ground；
Step 4, finally pour in the space of closing using microdilatancy grouting material, make after filling microdilatancy grouting material in closing space
With steel plate closing, exist gap reuse grouting material press-in fill up.
3. a kind of Blast Furnace Bottom that solves according to claim 1 leaks the method for repairing and mending of coal gas it is characterised in that containing following
Step；
Step 1, broke a seal on concrete ground primary surface locked groove along blast furnace one week, groove width 30mm, deep 200mm；
Step 2, in above-mentioned enclosed slot along blast furnace one week implantation closing steel construction piece；
Step 3, with microdilatancy plasticity clay, the steel construction piece being welded first is embedded in the enclosed slot of ground；
Step 4, finally pour in the space of closing using microdilatancy grouting material, make after filling microdilatancy grouting material in closing space
With steel plate closing, exist gap reuse grouting material press-in fill up.
4. a kind of Blast Furnace Bottom that solves leaks the structure of coal gas it is characterised in that connecting hard plastic on Blast Furnace Bottom concrete foundation
Screed, heat-resisting brick setting, carbon packing layer and last furnace shell, the inner chamber of last furnace shell connects carbon packing layer, carbon packing
The inner chamber of layer connects heat-resisting brick setting, and the inner chamber of heat-resisting brick setting connects blast furnace heat resisting foundation pier and hard plastic screed, blast furnace
The opposite side of furnace bottom concrete foundation has the first enclosed slot, and the first enclosed slot is trapezoidal, and filling microdilatancy in the first enclosed slot is moulded
Property clay, microdilatancy plastic hinge mud drum wraps up in closing angle steel and closing steel plate, and closing angle steel is l type, and closing steel plate is even
The side composition section being connected on closing angle steel l type is the rectangle of opening, and the height of closing steel plate is more than closing angle steel
Highly, the area filling microdilatancy grouting material surrounding in closing steel plate and last furnace shell, the surface of microdilatancy grouting material connects
Steel plate is closed.
5. a kind of structure solving Blast Furnace Bottom leakage coal gas according to claim 4, the size of the first enclosed slot is upper bottom
200mm, go to the bottom 220mm and high 150mm.
6. a kind of Blast Furnace Bottom that solves leaks the structure of coal gas it is characterised in that connecting hard plastic on Blast Furnace Bottom concrete foundation
Screed, heat-resisting brick setting, carbon packing layer and last furnace shell, the inner chamber of last furnace shell connects carbon packing layer, carbon packing
The inner chamber of layer connects heat-resisting brick setting, and the inner chamber of heat-resisting brick setting connects blast furnace heat resisting foundation pier and hard plastic screed, blast furnace
The opposite side of furnace bottom concrete foundation has the second enclosed slot, and the second enclosed slot is rectangle, and filling microdilatancy in the second enclosed slot is moulded
Property clay, microdilatancy plastic hinge mud drum wraps up in closing steel plate, and the area filling surrounding in closing steel plate and last furnace shell is micro- swollen
Swollen grouting material, the surface junction steel plate closing of microdilatancy grouting material.
7. a kind of structure solving Blast Furnace Bottom leakage coal gas according to claim 6, the size of the second enclosed slot is width
30mm and height 200mm.
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| CN201610900204.XA CN106367550B (en) | 2016-10-14 | 2016-10-14 | A kind of structure and method for repairing and mending solving Blast Furnace Bottom leakage coal gas |
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Cited By (4)
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| CN109929956A (en) * | 2019-04-16 | 2019-06-25 | 北京瑞普同创科技发展有限公司 | Smelt iron the online controlling device of hot-blast stove basis blowby compressed gas and installation method |
| CN110863511A (en) * | 2019-12-02 | 2020-03-06 | 南京联合荣大工程材料有限责任公司 | Method for repairing blast of furnace base of hot blast furnace |
| CN110953876A (en) * | 2019-12-18 | 2020-04-03 | 攀钢集团工程技术有限公司 | Method for repairing vertical kiln refractory layer |
| TWI826274B (en) * | 2023-02-23 | 2023-12-11 | 中國鋼鐵股份有限公司 | Method for evaluating slurry of repair material of blast furnace and method for repairing runner of blast furnace |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109929956A (en) * | 2019-04-16 | 2019-06-25 | 北京瑞普同创科技发展有限公司 | Smelt iron the online controlling device of hot-blast stove basis blowby compressed gas and installation method |
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| CN110953876A (en) * | 2019-12-18 | 2020-04-03 | 攀钢集团工程技术有限公司 | Method for repairing vertical kiln refractory layer |
| TWI826274B (en) * | 2023-02-23 | 2023-12-11 | 中國鋼鐵股份有限公司 | Method for evaluating slurry of repair material of blast furnace and method for repairing runner of blast furnace |
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| Publication number | Publication date |
|---|---|
| CN106367550B (en) | 2018-12-11 |
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