CN109097072A - A kind of coke oven flue reinforcing maintaining method - Google Patents
A kind of coke oven flue reinforcing maintaining method Download PDFInfo
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- CN109097072A CN109097072A CN201811192769.2A CN201811192769A CN109097072A CN 109097072 A CN109097072 A CN 109097072A CN 201811192769 A CN201811192769 A CN 201811192769A CN 109097072 A CN109097072 A CN 109097072A
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- flue
- steel shell
- hole
- lining
- crack
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- 238000000034 method Methods 0.000 title claims abstract description 29
- 239000000571 coke Substances 0.000 title claims abstract description 28
- 230000003014 reinforcing effect Effects 0.000 title description 8
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 105
- 239000010959 steel Substances 0.000 claims abstract description 105
- 229920000742 Cotton Polymers 0.000 claims abstract description 31
- 238000004321 preservation Methods 0.000 claims abstract description 31
- 239000000203 mixture Substances 0.000 claims abstract description 25
- 239000000463 material Substances 0.000 claims abstract description 24
- 238000003466 welding Methods 0.000 claims abstract description 15
- 239000000945 filler Substances 0.000 claims abstract description 8
- 239000011449 brick Substances 0.000 claims description 71
- 230000008439 repair process Effects 0.000 claims description 16
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 12
- 235000019504 cigarettes Nutrition 0.000 claims description 8
- 230000002159 abnormal effect Effects 0.000 claims description 7
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 6
- 229910052681 coesite Inorganic materials 0.000 claims description 6
- 229910052593 corundum Inorganic materials 0.000 claims description 6
- 229910052906 cristobalite Inorganic materials 0.000 claims description 6
- 238000007667 floating Methods 0.000 claims description 6
- 239000000843 powder Substances 0.000 claims description 6
- 239000000377 silicon dioxide Substances 0.000 claims description 6
- 229910052682 stishovite Inorganic materials 0.000 claims description 6
- 229910052905 tridymite Inorganic materials 0.000 claims description 6
- 229910001845 yogo sapphire Inorganic materials 0.000 claims description 6
- 230000005856 abnormality Effects 0.000 claims description 3
- 238000005520 cutting process Methods 0.000 claims description 3
- 238000007689 inspection Methods 0.000 claims description 3
- 230000000737 periodic effect Effects 0.000 claims description 3
- 206010022000 influenza Diseases 0.000 abstract 1
- 239000000779 smoke Substances 0.000 description 10
- 239000007789 gas Substances 0.000 description 9
- 238000001514 detection method Methods 0.000 description 7
- 239000010410 layer Substances 0.000 description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 4
- 239000003546 flue gas Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000011144 upstream manufacturing Methods 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 239000004927 clay Substances 0.000 description 2
- 238000004939 coking Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 230000003009 desulfurizing effect Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- 230000001755 vocal effect Effects 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10B—DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS
- C10B29/00—Other details of coke ovens
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Organic Chemistry (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
The invention discloses a kind of coke oven flues to reinforce method for maintaining, includes the following steps: S1, determines flue lining failure area, aperture is carried out on the flue steel shell at flue lining failure area, forms repairing hole；S2 carries out grouting to flue lining crack with the mixture of squeegee material and heat-preservation cotton at repairing hole and fills up；S3 fills up gunning refractory between the flue lining and flue steel shell inner surface at repairing hole；S4, welding steel carries out perforations adding at repairing hole.By aperture, fills up crack-filling agent and heat-preservation cotton, fills up a series of program of gunning refractory, perforations adding, directly flue internal fissure can be filled up, flue internal gas flow is avoided to the scaling loss of flue steel shell, the compactness of flue is increased, extends the length of service of flue.
Description
Technical field
The invention belongs to coke oven flue technical fields, specifically, being related to a kind of coke oven flue reinforcing maintaining method.
Background technique
Clean type heat reclamation coke furnace uses negative-pressure operation, by matched flue to the high temperature cigarette generated in process of coking
After gas is collected, used for downstream cogeneration process.The cylinder of flue is made of steel plate, and flue lining is fire proofed wood
Material occurs tar condensing and blocks flue, second is that in order to place high temperature first is that high temperature raw coke oven gas is directly contacted with steel plate in order to prevent
Raw coke oven gas is directly contacted with steel plate, so that flue temperature raising is deformed and is collapsed.Flue lining is generally clay refractory brick, clay
Refractory brick is built in flue inner wall by refractory wass, since mud is assigned not in flue operating temperature (350 DEG C -400 DEG C)
To sintering critical value, flue lining and flue can only maintain integral strength by the physical bond of mud, and only by mud
The physical bond of slurry, flue lining and flue are difficult to become an entirety.
Flue lining is run under high temperature environment for a long time, needs to bear high wind speed flue gas for a long time to wash away, but because coke oven with
Turn of the market and constantly adjust heating cycle, cause the refractory brick of liner to occur loosening or fall, external flue scaling loss is serious
The problems such as.Once flue breaks down, coking process will be directly contributed, cogeneration process stops production in succession, brings pole for enterprise
Huge economic loss, while flue gas causes pollution to atmospheric environment without desulfurizing tower direct emission.
In view of this present invention is specifically proposed.
Summary of the invention
The technical problem to be solved in the present invention is that overcoming the deficiencies of the prior art and provide a kind of coke oven flue reinforcing maintenance
Method carries out repairing purpose to flue internal fissure to realize.
In order to solve the above technical problems, the present invention is using the basic conception of technical solution:
A kind of coke oven flue reinforcing method for maintaining, includes the following steps:
S1 determines flue lining failure area, carries out aperture on the flue steel shell at flue lining failure area, formed
Repair hole；
S2 carries out grouting to flue lining crack with the mixture of squeegee material and heat-preservation cotton at repairing hole and fills up；
S3 fills up gunning refractory between the flue lining and flue steel shell inner surface at repairing hole；
S4, welding steel carries out perforations adding at repairing hole.
Further, in S1, flue steel shell surface temperature is detected first, in flue steel shell surface temperature exception bits
It sets place and carries out aperture.
Further, in S1, flue steel shell surface temperature is detected first, using infrared detector to flue steel
It is scanned at shell surface temperature abnormal position, determines flue lining failure area and damage at flue steel shell surface abnormalities position
Degree, and at identified flue lining failure area carry out flue steel shell aperture.
Preferably, the size in the repairing hole is corresponding with the size of identified flue lining failure area.
Further, in S1, steel shell surface is cut by gas welding, and utilize scoop so that cutting steel shell with
Flue lining is kept completely separate, and forms repairing hole.
Further, S2 further includes following steps:
S21 is cleaned in repairing each crack of hole inner flue liner, the residue on flue lining refractory brick surface, floating powder, crack
Crack, refractory brick including flue lining refractory brick itself appearance and the crack between refractory brick, repairing hole surrounding flue lining
Crack between refractory brick and flue steel shell inner surface；
S22, in the crack in the crack that repairing hole inner flue inner lining refractory block itself occurs, between refractory brick and refractory brick
In, in the crack between repairing hole surrounding flue lining refractory brick and flue steel shell inner surface fill up the mixed of squeegee material and heat-preservation cotton
Close object；
S23 is laid with the mixture of one layer of squeegee material and heat-preservation cotton on repairing hole inner flue inner lining refractory block surface.
Further, in S22 and S23, the mixture of squeegee material and heat-preservation cotton is padded to cigarette in repairing hole using scoop
On in each crack of road liner and refractory brick surface；Fill up the mixing of the crack-filling agent and heat-preservation cotton at repairing hole on refractory brick surface
Object is evened out with scoop, is compacted, and makes to repair the mixture of the crack-filling agent and heat-preservation cotton in hole on refractory brick surface without departing from repairing hole.
Further, in S3, repairing hole inner flue inner lining refractory block surface, repairing hole surrounding flue lining refractory brick with
Gunning refractory is filled up between flue steel shell inner surface, so that refractory brick and the bonding fixation of steel shell inner surface.
Further, in S4, welding steel is so that repairing hole is fully sealed, and to repair the flue surfaces at hole
For a smooth surface.
Preferably, after repairing hole is fully sealed, according to the size in repairing hole, judge whether to carry out flue steel shell further
It reinforces, if repairing hole is excessive, one block of steel plate is welded again at repairing hole, further to reinforce；Conversely, then no.
Further, described squeegee is expected in main component, weight percent Al2O3+SiO2>=83%；The gunning refractory is main
In component, weight percent Al2O3+SiO2>=82%.
A kind of coke oven flue reinforcing method for maintaining, includes the following steps:
S1 carries out many places aperture on flue steel shell with a fixed spacing, repairing hole is formed, periodically to be examined to flue
It repairs；
S2 carries out grouting to flue lining crack with the mixture of squeegee material and heat-preservation cotton at repairing hole and fills up；
S3 fills up gunning refractory between the flue lining and flue steel shell inner surface at repairing hole；
S4, welding steel carries out perforations adding at repairing hole.
After adopting the above technical scheme, the present invention has the advantages that compared with prior art.
By aperture, fills up crack-filling agent and heat-preservation cotton, fills up a series of program of gunning refractory, perforations adding, it can be directly to cigarette
Road internal fissure is filled up, and is avoided flue internal gas flow to the scaling loss of flue steel shell, is increased the compactness of flue, is extended
The length of service of flue.
By can directly judge the damaged condition inside flue to flue steel shell surface progress temperature detection, according to
It damages position and carries out aperture, flue inside is safeguarded, it is time saving and energy saving, and improve overhaul efficiency.
By carrying out many places aperture on flue steel shell with a fixed spacing, periodic inspection can be carried out to flue, avoid cigarette
The further intensification of road damage of internal lining.
A specific embodiment of the invention is described in further detail with reference to the accompanying drawing.
Detailed description of the invention
Attached drawing is as a part of the invention, and for providing further understanding of the invention, of the invention is schematic
Examples and descriptions thereof are used to explain the present invention, but does not constitute an undue limitation on the present invention.Obviously, the accompanying drawings in the following description
Only some embodiments to those skilled in the art without creative efforts, can be with
Other accompanying drawings can also be obtained according to these attached drawings.In the accompanying drawings:
Fig. 1 is the cross-sectional view of coke oven flue in the embodiment of the present invention.
In figure: 1- coke oven flue, 2- refractory brick, 3- steel shell, 4- repair hole.
It should be noted that these attached drawings and verbal description are not intended to the design model limiting the invention in any way
It encloses, but illustrates idea of the invention by referring to specific embodiments for those skilled in the art.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, the technical solution in embodiment is clearly and completely described, the following examples are intended to illustrate the invention, but
It is not intended to limit the scope of the invention.
In the description of the present invention, it should be noted that term " on ", "front", "rear", "left", "right", " is erected at "lower"
Directly ", the orientation or positional relationship of the instructions such as "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, merely to just
In description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation, with
Specific orientation construction and operation, therefore be not considered as limiting the invention.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, it can also be indirectly connected through an intermediary.For this
For the those of ordinary skill in field, the concrete meaning of above-mentioned term in the present invention can be understood with concrete condition.
As shown in Figure 1, describing a kind of coke oven flue reinforcing maintaining method in the embodiment of the present invention, this method is mainly applied
In on coke oven flue 1, coke oven flue 1 includes external steel shell 3 and inner lining refractory block 2, and inner lining refractory block 2 surrounds the inner circumferential of steel shell 3
Refractory brick 2 is built on the inner surface of steel shell 3 by mud, steel shell 3 and 1 internal gas flow of flue is isolated by setting, by
Run under high temperature environment for a long time in flue lining, need to bear high wind speed flue gas for a long time to wash away, cause inner lining refractory block it
Between there is crack and damage.By aperture, fills up crack-filling agent and heat-preservation cotton, fills up a series of program of gunning refractory, perforations adding, it can be with
Directly flue internal fissure is filled up, flue internal gas flow is avoided to the scaling loss of flue steel shell, increases the cause of flue
Close property, extends the length of service of flue.
Embodiment one
In the present embodiment, which reinforces maintaining method, includes the following steps:
A kind of coke oven flue reinforcing method for maintaining, includes the following steps:
S1 determines flue lining failure area, carries out aperture on the flue steel shell at flue lining failure area, formed
Repair hole；
S2 carries out grouting to flue lining crack with the mixture of squeegee material and heat-preservation cotton at repairing hole and fills up；
S3 fills up gunning refractory between the flue lining and flue steel shell inner surface at repairing hole；
S4, welding steel carries out perforations adding at repairing hole.
In the present embodiment, in S1,1 steel shell of flue, 3 surface temperature is detected first, when refractory brick 2, refractory brick 2
Between refractory brick 2, when there is crack between 3 inner surface of refractory brick 2 and steel shell, 1 internal gas flow of flue by these cracks with
Steel shell 3 directly contacts, and the surface temperature of steel shell 3 is caused to increase, and steel shell 3 will appear the abnormal phenomenon such as rubescent, when detecting steel shell 3
Surface temperature it is abnormal, when there is redness phenomenon, aperture is carried out at 1 steel shell of flue, 3 surface temperature abnormal position, forms repairing
Hole 4 can observe directly crack by repairing hole 4 at this time.
In the present embodiment, 3 surface of steel shell is cut by gas welding, then by tools such as scoops, by the steel of cutting
Shell is separated with 2 phase of refractory brick on the inside of it, to remove the block steel shell 3 completely, repairs hole 4 to be formed.
In the present embodiment, in S1,1 steel shell of flue, 3 surface temperature is detected first, utilizes infrared detector pair
It is scanned at 1 steel shell of flue, 3 surface temperature abnormal position, determines 1 damage of internal lining of flue at 3 surface abnormalities position of flue steel shell
Region and damaged condition, and at identified 1 damage of internal lining region of flue carry out 1 steel shell 3 of flue aperture.
In the present embodiment, the size for repairing hole 4 is corresponding with the size in identified 1 damage of internal lining region of flue.Repairing
1 damage of internal lining region of flue is completely covered in the regular shape in hole 4.
Embodiment two
It, can be by carrying out detection measurement to 1 smoke discharging volume of flue, when flue smoke discharging volume is lower than certain in S1 in the present embodiment
When one setting value, it can determine that failure area occurs in 1 liner of flue.
In S1, in flue 1 along a certain distance be arranged smoke detection device, in real time to flow through smoke detection dress
The smoke at the place of setting is detected, to judge whether smoke flow is normal, when flowing through the smoke at smoke detection device lower than a certain
When setting value, it can determine whether that failure area occurs in the upstream of smoke detection device at this；Smoke at this is detected using X-ray searchlighting instrument
The upstream of device carries out searchlighting detection, detects the concentration and density of the upstream region flue gas, the area that concentration and density mutate
I.e. can be identified as 1 liner of flue there is failure area in domain, and 1 steel of flue is carried out at identified 1 damage of internal lining region of flue
The aperture of shell 3.
Embodiment three
In the present embodiment, S2 further includes following steps:
S21 is cleaned in repairing 4 inner flue of hole, 1 each crack of liner, the residue on 2 surface of flue lining refractory brick, floating powder
It include crack between crack, refractory brick 2 and refractory brick 2 that refractory brick 2 itself occurs, repairing 4 surrounding flue 1 of hole Deng, crack
Crack between inner lining refractory block 2 and flue steel shell 3, i.e., all slits observed by repairing hole 4；
S22, in the crack that repairing 4 inner flue of hole, 1 inner lining refractory block 2 itself occurs, between refractory brick 2 and refractory brick 2
Crack in, repairing 4 surrounding flue of hole, 1 inner lining refractory block 2 and 3 inner surface of flue steel shell between crack in fill up squeegee material and
The mixture of heat-preservation cotton；
S23 is laid with the mixture of one layer of squeegee material and heat-preservation cotton on repairing 4 inner flue of hole, 1 inner lining refractory block, 2 surface.
In the embodiment of the present invention, in S22 and S23, the mixture of squeegee material and heat-preservation cotton is filled out using tools such as scoops
It mends into each crack of 1 liner of flue, i.e., crack, repairing between the crack of refractory brick 2 itself appearance, refractory brick 2 and refractory brick 2
Crack between 4 surrounding flue of hole, 1 inner lining refractory block 2 and flue steel shell 3.
In the present embodiment, the mixture of squeegee material and heat-preservation cotton is laid with to fire resisting in repairing hole 4 using tools such as scoops
It on 2 surface of brick, and evens out, be compacted, the mixture for making to repair crack-filling agent and heat-preservation cotton in hole 4 on 2 surface of refractory brick does not surpass
Hole 4 is repaired out.
Example IV
In the present embodiment, in S3, in repairing 4 inner flue of hole, 1 inner lining refractory block, 2 surface, repairing 4 surrounding flue 1 of hole
Gunning refractory is filled up between lining refractory brick 2 and 1 steel shell of flue, 3 inner surface, gunning refractory is spread around automatically, so that refractory brick 2
With the bonding fixation of 3 inner surface of steel shell, the connection of refractory brick 2 Yu steel shell 3 is further strengthened.
In the present embodiment, in S4, welding steel is so that repairing hole 4 is fully sealed, and to repair the cigarette at hole
Road surface is a smooth surface；Repairing hole 4 be fully sealed after, according to repairing hole 4 size, judge whether to 1 steel shell 3 of flue into
Row is further reinforced, if repairing hole 4 is excessive, one block of steel plate is welded again at repairing hole 4, further to reinforce；Conversely, then no.
In the present embodiment, squeegees and expect in main component, weight percent Al2O3+SiO2>=83%；The gunning refractory is main
In component, weight percent Al2O3+SiO2>=82%.
Embodiment five
In the present embodiment, which reinforces maintaining method and includes the following steps:
S1 detects 1 steel shell of flue, 3 surface temperature, at 1 steel shell of flue, the 3 temperature anomaly position on carry out aperture,
Form repairing hole 4；
S21 is cleaned in repairing 4 inner flue of hole, 1 each crack of liner, the residue on 2 surface of flue lining refractory brick, floating powder
It include crack between crack, refractory brick 2 and refractory brick 2 that refractory brick 2 itself occurs, repairing 4 surrounding flue 1 of hole Deng, crack
Crack between inner lining refractory block 2 and flue steel shell 3, i.e., all slits observed by repairing hole 4；
S22, in the crack that repairing 4 inner flue of hole, 1 inner lining refractory block 2 itself occurs, between refractory brick 2 and refractory brick 2
Crack in, repairing 4 surrounding flue of hole, 1 inner lining refractory block 2 and 3 inner surface of flue steel shell between crack in fill up squeegee material and
The mixture of heat-preservation cotton；
S23 is laid with the mixture of one layer of squeegee material and heat-preservation cotton on repairing 4 inner flue of hole, 1 inner lining refractory block, 2 surface；
S3, in repairing 4 inner flue of hole, 1 inner lining refractory block, 2 surface, 1 inner lining refractory block 2 of repairing 4 surrounding flue of hole and flue 1
Gunning refractory is filled up between 3 inner surface of steel shell, so that refractory brick 2 and 1 steel shell of flue, the 3 bonding fixation of inner surface；
S4, the welding steel at repairing hole 4 so that repairing hole 4 is fully sealed, and to repair the flue at hole 4
Surface is a smooth surface.
Embodiment six
In the present embodiment, which reinforces maintaining method and includes the following steps:
S1 carries out many places aperture on flue steel shell with a fixed spacing, repairing hole is formed, periodically to be examined to flue
It repairs；
S21 is cleaned in repairing 4 inner flue of hole, 1 each crack of liner, the residue on 2 surface of flue lining refractory brick, floating powder
It include crack between crack, refractory brick 2 and refractory brick 2 that refractory brick 2 itself occurs, repairing 4 surrounding flue 1 of hole Deng, crack
Crack between inner lining refractory block 2 and flue steel shell 3, i.e., all slits observed by repairing hole 4；
S22, in the crack that repairing 4 inner flue of hole, 1 inner lining refractory block 2 itself occurs, between refractory brick 2 and refractory brick 2
Crack in, repairing 4 surrounding flue of hole, 1 inner lining refractory block 2 and 3 inner surface of flue steel shell between crack in fill up squeegee material and
The mixture of heat-preservation cotton；
S23 is laid with the mixture of one layer of squeegee material and heat-preservation cotton on repairing 4 inner flue of hole, 1 inner lining refractory block, 2 surface；
S3, in repairing 4 inner flue of hole, 1 inner lining refractory block, 2 surface, 1 inner lining refractory block 2 of repairing 4 surrounding flue of hole and flue 1
Gunning refractory is filled up between 3 inner surface of steel shell, so that refractory brick 2 and 1 steel shell of flue, the 3 bonding fixation of inner surface；
S4, the welding steel at repairing hole 4 so that repairing hole 4 is fully sealed, and to repair the flue at hole 4
Surface is a smooth surface.
By carrying out many places aperture on flue steel shell with a fixed spacing, periodic inspection can be carried out to flue, avoid cigarette
The further intensification of road damage of internal lining.
Embodiment seven
In the present embodiment, which reinforces maintaining method and includes the following steps:
S1 carries out many places aperture on flue steel shell with a fixed spacing, repairing hole is formed, periodically to be examined to flue
It repairs；
S21 is cleaned in repairing 4 inner flue of hole, 1 each crack of liner, the residue on 2 surface of flue lining refractory brick, floating powder
It include crack between crack, refractory brick 2 and refractory brick 2 that refractory brick 2 itself occurs, repairing 4 surrounding flue 1 of hole Deng, crack
Crack between inner lining refractory block 2 and flue steel shell 3, i.e., all slits observed by repairing hole 4；
S22, in the crack that repairing 4 inner flue of hole, 1 inner lining refractory block 2 itself occurs, between refractory brick 2 and refractory brick 2
Crack in, repairing 4 surrounding flue of hole, 1 inner lining refractory block 2 and 3 inner surface of flue steel shell between crack in fill up squeegee material and
The mixture of heat-preservation cotton；
S23, in repairing each crack of 4 liner of hole close to repairing 4 one end of hole, squeegee material and heat-preservation cotton mixture on be laid with
One layer of curing agent, to reinforce being connected and fixed between refractory brick；One is laid on repairing 4 inner flue of hole, 1 inner lining refractory block, 2 surface
Layer is squeegeeed the mixture of material and heat-preservation cotton；
S3, in repairing 4 inner flue of hole, 1 inner lining refractory block, 2 surface, 1 inner lining refractory block 2 of repairing 4 surrounding flue of hole and flue 1
Gunning refractory is filled up between 3 inner surface of steel shell, so that refractory brick 2 and 1 steel shell of flue, the 3 bonding fixation of inner surface；
S4, the welding steel at repairing hole 4 so that repairing hole 4 is fully sealed, and to repair the flue at hole 4
Surface is a smooth surface.
The above is only presently preferred embodiments of the present invention, is not intended to limit the present invention in any form, though
So the present invention has been disclosed as a preferred embodiment, and however, it is not intended to limit the invention, any technology people for being familiar with this patent
Member without departing from the scope of the present invention, when the technology contents using above-mentioned prompt make it is a little change or be modified to
The equivalent embodiment of equivalent variations, but anything that does not depart from the technical scheme of the invention content, it is right according to the technical essence of the invention
Any simple modification, equivalent change and modification made by above embodiments, in the range of still falling within the present invention program.
Claims (10)
1. a kind of coke oven flue reinforces method for maintaining, which comprises the steps of:
S1 determines flue lining failure area, aperture is carried out on the flue steel shell at flue lining failure area, forms repairing
Hole；
S2 carries out grouting to flue lining crack with the mixture of squeegee material and heat-preservation cotton at repairing hole and fills up；
S3 fills up gunning refractory between the flue lining and flue steel shell inner surface at repairing hole；
S4, welding steel carries out perforations adding at repairing hole.
2. a kind of coke oven flue according to claim 1 reinforces method for maintaining, which is characterized in that in S1, first to cigarette
Road steel shell surface temperature is detected, and aperture is carried out at flue steel shell surface temperature abnormal position.
3. a kind of coke oven flue according to claim 2 reinforces method for maintaining, which is characterized in that in S1, first to cigarette
Road steel shell surface temperature is detected, using infrared detector to being scanned at flue steel shell surface temperature abnormal position,
It determines flue lining failure area and damaged condition at flue steel shell surface abnormalities position, and is damaged in identified flue lining
The aperture of flue steel shell is carried out at region；
Preferably, the size in the repairing hole is corresponding with the size of identified flue lining failure area.
4. a kind of coke oven flue according to claim 3 reinforces method for maintaining, which is characterized in that in S1, pass through gas welding
Steel shell surface is cut, and utilizes scoop, so that the steel shell of cutting is kept completely separate with flue lining, forms repairing hole.
5. a kind of coke oven flue according to claim 4 reinforces method for maintaining, which is characterized in that S2 further includes walking as follows
It is rapid:
S21 is cleaned in repairing each crack of hole inner flue liner, the residue on flue lining refractory brick surface, floating powder, and crack includes
Crack that flue lining refractory brick itself occurs, the crack between refractory brick and refractory brick, repairing hole surrounding flue lining fire resisting
Crack between brick and flue steel shell inner surface；
S22, in the crack in the crack that repairing hole inner flue inner lining refractory block itself occurs, between refractory brick and refractory brick,
The mixing of squeegee material and heat-preservation cotton is filled up in crack between repairing hole surrounding flue lining refractory brick and flue steel shell inner surface
Object；
S23 is laid with the mixture of one layer of squeegee material and heat-preservation cotton on repairing hole inner flue inner lining refractory block surface.
6. a kind of coke oven flue according to claim 5 reinforces method for maintaining, which is characterized in that in S22 and S23, benefit
The mixture of squeegee material and heat-preservation cotton is padded in repairing each crack of hole inner flue liner and on refractory brick surface with scoop；It fills out
The mixture for mending crack-filling agent and heat-preservation cotton at repairing hole on refractory brick surface is evened out with scoop, is compacted, and makes to repair resistance in hole
The mixture of crack-filling agent and heat-preservation cotton on firebrick surface is without departing from repairing hole.
7. a kind of coke oven flue according to claim 6 reinforces method for maintaining, which is characterized in that in S3, in repairing hole
Gunning refractory is filled up between inner flue inner lining refractory block surface, repairing hole surrounding flue lining refractory brick and flue steel shell inner surface,
So that refractory brick and the bonding fixation of steel shell inner surface.
8. a kind of coke oven flue according to claim 7 reinforces method for maintaining, which is characterized in that in S4, welding steel
So that repairing hole is fully sealed, and to repair the flue surfaces at hole is a smooth surface；
Preferably, after repairing hole is fully sealed, according to the size in repairing hole, judge whether that flue steel shell is carried out further to add
Gu one block of steel plate is welded again at repairing hole, if repairing hole is excessive further to reinforce；Conversely, then no.
9. a kind of coke oven flue according to claim 8 reinforces method for maintaining, which is characterized in that described squeegee expects main group
In point, weight percent Al2O3+SiO2>=83%；In the gunning refractory main component, weight percent Al2O3+SiO2≥
82%.
10. a kind of coke oven flue reinforces method for maintaining, which comprises the steps of:
S1 carries out many places aperture on flue steel shell with a fixed spacing, forms repairing hole, to carry out periodic inspection to flue；
S2 carries out grouting to flue lining crack with the mixture of squeegee material and heat-preservation cotton at repairing hole and fills up；
S3 fills up gunning refractory between the flue lining and flue steel shell inner surface at repairing hole；
S4, welding steel carries out perforations adding at repairing hole.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115595162A (en) * | 2022-10-20 | 2023-01-13 | 重庆钢铁股份有限公司（Cn） | Reinforcing method for deformation of side wall of coke oven waste gas flue |
| CN115875988A (en) * | 2021-09-28 | 2023-03-31 | 国家电投集团黄河上游水电开发有限责任公司 | Rapid emergency repair method for high-temperature flue |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103374356A (en) * | 2012-04-25 | 2013-10-30 | 五冶集团上海有限公司 | Flue arch crown online opening pipe connecting method for smoke waste-heat utilization of coke oven |
| CN103382395A (en) * | 2013-07-31 | 2013-11-06 | 马钢(集团)控股有限公司 | Thermal-state lining repairing method for coke oven ascending pipes and spray repairing material thereof |
| JP2016060843A (en) * | 2014-09-18 | 2016-04-25 | Ｊｆｅスチール株式会社 | Furnace top brick repair method |
| CN108264907A (en) * | 2018-01-27 | 2018-07-10 | 新余钢铁股份有限公司 | A kind of pneumatic mending device of oven top of coke oven layer blowby and its pneumatic spray repair method |
| CN108570524A (en) * | 2017-03-08 | 2018-09-25 | 广东韶钢松山股份有限公司 | The blast funnace hot blast stove pipe lining checkout and diagnosis of resistance to material technique |
-
2018
- 2018-10-13 CN CN201811192769.2A patent/CN109097072B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103374356A (en) * | 2012-04-25 | 2013-10-30 | 五冶集团上海有限公司 | Flue arch crown online opening pipe connecting method for smoke waste-heat utilization of coke oven |
| CN103382395A (en) * | 2013-07-31 | 2013-11-06 | 马钢(集团)控股有限公司 | Thermal-state lining repairing method for coke oven ascending pipes and spray repairing material thereof |
| JP2016060843A (en) * | 2014-09-18 | 2016-04-25 | Ｊｆｅスチール株式会社 | Furnace top brick repair method |
| CN108570524A (en) * | 2017-03-08 | 2018-09-25 | 广东韶钢松山股份有限公司 | The blast funnace hot blast stove pipe lining checkout and diagnosis of resistance to material technique |
| CN108264907A (en) * | 2018-01-27 | 2018-07-10 | 新余钢铁股份有限公司 | A kind of pneumatic mending device of oven top of coke oven layer blowby and its pneumatic spray repair method |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115875988A (en) * | 2021-09-28 | 2023-03-31 | 国家电投集团黄河上游水电开发有限责任公司 | Rapid emergency repair method for high-temperature flue |
| CN115595162A (en) * | 2022-10-20 | 2023-01-13 | 重庆钢铁股份有限公司（Cn） | Reinforcing method for deformation of side wall of coke oven waste gas flue |
| CN115595162B (en) * | 2022-10-20 | 2026-03-24 | 重庆钢铁股份有限公司 | A method for reinforcing the deformed sidewall of a coke oven flue. |
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