CN110487076A - A kind of torpedo tank liner repairing method - Google Patents
A kind of torpedo tank liner repairing method Download PDFInfo
- Publication number
- CN110487076A CN110487076A CN201910838055.2A CN201910838055A CN110487076A CN 110487076 A CN110487076 A CN 110487076A CN 201910838055 A CN201910838055 A CN 201910838055A CN 110487076 A CN110487076 A CN 110487076A
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- area
- straight tube
- repairing
- tube area
- liner
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/14—Discharging devices, e.g. for slag
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D1/00—Casings; Linings; Walls; Roofs
- F27D1/16—Making or repairing linings increasing the durability of linings or breaking away linings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D1/00—Casings; Linings; Walls; Roofs
- F27D1/16—Making or repairing linings increasing the durability of linings or breaking away linings
- F27D1/1626—Making linings by compacting a refractory mass in the space defined by a backing mould or pattern and the furnace wall
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
- Treatment Of Steel In Its Molten State (AREA)
Abstract
The invention discloses a kind of torpedo tank liner repairing methods, including setting up dedicated repairing mould in fish torpedo ladle, dedicated repairing mould is a cavity with radian, including the first straight tube area, first straight tube area is half cylinder, and first the lateral wall in straight tube area there is groove, the downside inside fish torpedo ladle is arranged in the first straight tube area, and the tank mouth orthographic projection of fish torpedo ladle is fallen in the orthographic projection of groove；It is poured material for repairing between the dedicated repairing mould set up and the liner of fish torpedo ladle, the material for repairing after being poured between groove and torpedo tank liner has protrusion；The dedicated repairing mould set up in the fish torpedo ladle is removed after casting.The inner lining structure of fish torpedo ladle impact zone can preferably be restored using the present invention.
Description
Technical field
The invention belongs to technical field of blast furnace ironmaking, in particular to a kind of torpedo tank liner repairing method.
Background technique
Position is cylinder cylindricality among fish torpedo ladle, and the left and right sides is conical round table, and shape is similar to torpedo, due to its capacity
Greatly, the advantages that buffer time is long, and heat insulation effect is good, height is low, place transformation is small, is gradually used by most of large blast furnaces.But
It is fish torpedo ladle in production and application, especially the middle and later periods in fish torpedo ladle tank age, liner easily damage, especially fish torpedo ladle vertical tube part
Impact zone and impact zone peripheral region be damaged most serious.
The reason of torpedo tank liner damages mainly has the following: (1) large blast furnace iron tap channel and fish torpedo ladle have larger
Height difference, molten iron decline is to being lined with strong souring；(2) it is anti-to generate chemical erosion to torpedo tank liner for high temperature slag iron
It answers；(3) temperature sharply increases and generates thermal shock effect when torpedo canned molten iron；(4) pour out after molten iron the high temperature bricking of fish torpedo ladle with
Air is oxidized when contacting.
The prior art proposes the affected area in a variety of methods repairing fish torpedo ladles, including spraying material for repairing method, casting or
Smearing method, masonry refractory brick method etc., but method for repairing and mending in the prior art, after repairing to fish torpedo ladle, liner is difficult to restore
The configuration of impact zone.
Summary of the invention
In view of the above shortcomings of the prior art, existing to solve the present invention provides a kind of torpedo tank liner repairing method
In technology after fish torpedo ladle repairing, liner is difficult to the problem of restoring impact zone configuration.
The present invention through the following technical solutions to achieve the above objectives:
The invention discloses a kind of torpedo tank liner repairing methods, comprising: dedicated reparation mould is set up in the fish torpedo ladle
Tool, the dedicated repairing mould are a cavity with radian, including the first straight tube area, and first straight tube area is half cylinder,
And the lateral wall in first straight tube area has groove, the downside in the fish torpedo ladle is arranged in first straight tube area, described
The tank mouth orthographic projection of fish torpedo ladle is fallen in the orthographic projection of the groove；
It is poured material for repairing between the dedicated repairing mould set up and the liner of the fish torpedo ladle, in groove and fish
Material for repairing after being poured between thunder tank liner has protrusion；
The dedicated repairing mould set up in the fish torpedo ladle is removed after the casting.
Further, dedicated repairing mould further includes the second straight tube area and third straight tube area, and the second straight tube area and third are straight
Cylinder area is respectively arranged at the both ends in the first straight tube area, and the second straight tube area and third straight tube area are half cylinder, the second straight tube area and
Third straight tube area is separately positioned on two side lower parts in fish torpedo ladle.
Further, dedicated repairing mould further includes First Transition area, the second transition region, the one end in First Transition area with
The detachable company in one end in one end detachable connection in the first straight tube area, the other end in First Transition area and the second straight tube area
It connects, the other end detachable connection of one end of the second transition region and the first straight tube area, the other end and third of the second transition region
One end detachable connection in straight tube area, First Transition area and the second transition region are respectively arranged at two side lower parts in fish torpedo ladle.
Further, dedicated repairing mould further includes the first area Zhui Duan and the second area Zhui Duan, the one end in the first area Zhui Duan with
The other end detachable connection in the second straight tube area, the one end in the second area Zhui Duan and the detachable company of the other end in third straight tube area
It connects,
The direction of first area Zhui Duan and the area third Zhui Duan respectively backwards to the second straight tube area, third straight tube area extends.First cone
Section area and the second area Zhui Duan are respectively arranged at two side lower parts in the fish torpedo ladle.
Further, the first straight tube area, the second straight tube area, third straight tube area, First Transition area, the second transition region, first
The area Zhui Duan, the second area Zhui Duan are spliced by two pieces of submodules are detachable, and two pieces of submodules are perpendicular to ground and to cross the
The face of the center line in one straight tube area is symmetrical.
Further, groove includes the first groove, the second groove, and the first groove and the second groove are located at two submodules
On block, the fan shape center line of the first groove with 45 ° of vertical direction angle, the fan shape center line of the second groove and vertical direction angle
45 °, the arc length of the first groove, the arc length of the second groove less than the submodule in the first straight tube area arc length.
Further, the dedicated repairing mould further includes support rod, the support rod have it is multiple, the support rod hang down
Directly the center line in first straight tube area is arranged, and one end of the support rod is connect with the inner cavity of the dedicated repairing mould,
The other end of the support rod is arranged on the inner wall of the fish torpedo ladle.
Further, the dedicated repairing mould further includes pull rod, and the pull rod has multiple, and the pull rod is parallel to level
Face setting, the both ends of the pull rod are connect with the inner cavity of the repairing mould respectively.
Further, further include before dedicated repairing mould being set up in the fish torpedo ladle,
Cold inspection is carried out to the fish torpedo ladle for needing to repair liner；
Residue cleaning and inner lining surface processing in tank body are carried out to the fish torpedo ladle after cold inspection；
Liner dimensional measurement is carried out to processed fish torpedo ladle and estimates the residual thickness of liner；
To the processing of torpedo tank liner surface second.
Further, it is gone back after the dedicated repairing mould set up in the fish torpedo ladle is removed after the casting
Including handling the liner repaired in fish torpedo ladle.
Beneficial effects of the present invention include at least:
The invention discloses a kind of torpedo tank liner repairing methods, dedicated repairing mould are first set up in fish torpedo ladle, in frame
The special of the interior erection of fish torpedo ladle is removed if being poured material for repairing between the liner of good dedicated repairing mould and fish torpedo ladle, after casting
Use repairing mould；Wherein dedicated repairing mould is a cavity with radian, including the first straight tube area, and the first straight tube area is lower half
Cylinder, and the lateral wall in the first straight tube area has groove, the tank mouth orthographic projection of the fish torpedo ladle falls in the orthographic projection of the groove
On, the liner of fish torpedo ladle impact zone has protrusion after casting.When fish torpedo ladle works, impact zone i.e. tank mouth are in tank bottom
Forward projection region is to be damaged extremely serious region, and inner lining structure herein is complex, thickness also than in fish torpedo ladle other
The interior liner thickness in region is some, and dedicated repairing mould mentioned in the present invention has the first straight tube area, and the first straight tube area has
Mold rack is set to inside fish torpedo ladle to be repaired by groove, and repairing is poured between dedicated repairing mould and torpedo tank liner
Material can namely form with the position of torpedo tank liner corresponding to groove in impact zone and have after the dismounting of dedicated repairing mould
There is the liner of protrusion, this liner repaired and the original impact plot structure of fish torpedo ladle are extremely close.
Detailed description of the invention
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing.
Fig. 1 is a kind of process sequence diagram of the embodiment of torpedo tank liner repairing method；
Fig. 2 is the structural schematic diagram of the dedicated repairing mould use state for torpedo tank liner repairing；
Fig. 3 is the structural schematic diagram of fish torpedo ladle
Fig. 4 is the sectional view of dedicated repairing mould figure shown in Fig. 2.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
The invention discloses a kind of torpedo tank liner repairing method, Fig. 1 is a kind of implementation of torpedo tank liner repairing method
The process sequence diagram of example.In conjunction with Fig. 1 it is found that the present invention includes:
S1 carries out cold inspection to the fish torpedo ladle for needing to repair liner.The service life of fish torpedo ladle about 800 times, generally in fish
Thunder tank uses 600~700 times, that is, tank age middle and later periods when, the liner loss of fish torpedo ladle is very serious, but in order to prolong
The service life of long fish torpedo ladle takes the measure repaired to liner, allows to continue access molten steel.To torpedo tank liner
It is repaired, the first step is to carry out cold inspection to the liner of fish torpedo ladle, checks that the substantially deterioration extent of liner and tank are intracorporal
Residue quantity and distribution etc., for preparing to liner surface treatment for next step.
S2 carries out residue cleaning and inner lining surface in tank body to the fish torpedo ladle after cold inspection and handles.
The fish torpedo ladle bricking after cold inspection, the slag in brickwork joint and iron are cleaned up using instruments such as electric picks, it will using overhead traveling crane
Bulk slag iron handling in fish torpedo ladle goes out tank, provides basic condition for torpedo tank liner reparation, if keeping slag in bricking, brickwork joint
The impurity such as iron have slag iron impurity, will lead to material for repairing and bricking can not after torpedo tank liner reparation between material for repairing and bricking
It directly contacts and combines, therefore fish torpedo ladle is in use, material for repairing can directly fall off, pollute molten iron.
After slag iron cleans out, then torpedo tank liner surface is handled, torpedo tank liner processing is mainly " sandblasting
" glaze " of bricking is processed into " pitted skin " by method ", after treatment, is purged torpedo tank liner completely using compress wind." sandblasting
Method " is that the flint clay particle having a size of 3~5mm is packed into small-sized sprayer, and small-sized sprayer is empty using 4~6 kilograms of compression
Between flint clay particle be sprayed onto need the bricking surface repaired, original " glaze " strike of bricking at " pitted skin ", during this
The flint clay particle used, which can recycle, to be recycled.
" glaze " of bricking is processed into " pitted skin " before liner reparation, residual lining weaker zone and area carbon can be destroyed, is prevented
Only it influences the bond strength between material for repairing and bricking, simultaneously " pitted skin " can make to combine between material for repairing and bricking it is stronger,
Densification is conducive to the service life for improving fish torpedo ladle.
S3 carries out liner dimensional measurement to processed fish torpedo ladle and estimates the residual thickness of liner.
Processed each spot size of torpedo tank is measured, and by after measurement dimension data and fish torpedo ladle it is big
Size when repairing compares, it can be deduced that data are corroded in the bricking at processed each position of torpedo tank；Pass through bricking again
The residual thickness that data estimation removes each position of processed fish torpedo ladle is corroded in the bricking at original thickness and each position of torpedo tank.
According to the residual thick data of measurement and each position of processed fish torpedo ladle arrived calculated, it can determine what needs were poured
The thickness of material for repairing, it is possible thereby to the accurate decorating position of dedicated repairing mould in fish torpedo ladle be determined, so that the torpedo after repairing
The size of tank liner is infinitely close to the original thickness of fish torpedo ladle.
S4 after estimating the residual thickness of liner, to the processing of torpedo tank liner surface second, mainly brushes high temperature in torpedo tank liner
Colloidal sol, used pyrosol contain active nano SiO2.It is brushed in pitted skin bricking and contains SiO2Pyrosol, into one
It ensure that step bricking and mend the bond strength between feed supplement, material for repairing falls off when anti-rotation stop tank removes iron.
S5 sets up dedicated repairing mould in the fish torpedo ladle measured.
Dedicated repairing mould is a cavity with radian, including the first straight tube area 1, and first straight tube area 1 is lower half
Cylinder, and the lateral wall in first straight tube area 1 has groove 11, the tank mouth 10-1 orthographic projection of the fish torpedo ladle falls in described recessed
In the orthographic projection of slot 11.
When fish torpedo ladle works, impact zone i.e. tank mouth be in the forward projection region of tank bottom be damaged extremely serious region, and
Inner lining structure herein is complex, and dedicated repairing mould mentioned in the present invention is utilized to have the first straight tube area 1, and first
Straight tube area 1 has groove 11, dedicated repairing mould is set up in inside fish torpedo ladle to be repaired, 11 region of groove is exactly
Fish torpedo ladle impact zone region is poured material for repairing, dedicated reparation to be removed between dedicated repairing mould and torpedo tank liner
After mold, can clearly observe in the impact zone of fish torpedo ladle lining have and groove relative to protrusion.Because of torpedo
The impact zone of tank is damaged most serious at work, so the inner lining structure of impact zone is complicated, thickness compared to fish torpedo ladle its
His field liner also wants thick, and the liner impact zone repaired using dedicated repairing mould can preferably be restored with protrusion
The original inner lining structure of fish torpedo ladle impact zone.
Further, the dedicated repairing mould further includes the second straight tube area 2 and third straight tube area 3, second straight tube
Area 2 and third straight tube area 3 are respectively arranged at the both ends in first straight tube area 1, second straight tube area 2 and the third
Straight tube area 3 is half cylinder, and second straight tube 2 and third straight tube area 3 are separately positioned on the two sides in the fish torpedo ladle
Lower part.
Further, the dedicated repairing mould further includes First Transition area 4, the second transition region 5, the First Transition area
One end detachable connection of 4 one end and first straight tube area 1, the other end in the First Transition area 4 and described second
The other end of one end detachable connection in straight tube area 2, one end and first straight tube area 1 of second transition region 5 is removable
It unloads formula to connect, the other end of second transition region 5 and one end detachable connection in third straight tube area 3, described first
Transition region 4 and the second transition region 5 are respectively arranged at two side lower parts in the fish torpedo ladle.
The bus in the First Transition area 4 and the bus angle in first straight tube area 1 are 130 °~140 °, described second
The bus of transition region 5 and the bus angle in first straight tube area 1 are 130 °~140 °.
Further, the dedicated repairing mould further includes the first area Zhui Duan 6 and the second area Zhui Duan 7, the first cone section
The other end detachable connection of the one end in area 6 and second straight tube area 2, the one end in the area second Zhui Duan 7 and described the
The other end detachable connection in three straight tube areas 3, the area first Zhui Duan 6 and the area third Zhui Duan 7 are respectively backwards to the second straight tube area
2, the direction in third straight tube area 3 extends.The area first Zhui Duan 6 and the area second Zhui Duan 7 are respectively arranged at the fish torpedo ladle
Two interior side lower parts.
The bus in the area first Zhui Duan 6 and the bus angle in second straight tube area 2 are 165 °~175 °, described second
The center line in the area Zhui Duan 7 and the centerlines in third straight tube area 3 are 165 °~175 °
First straight tube area 1 mentioned above, the second straight tube area 2, third straight tube area 3, First Transition area 4, the second transition region
5, the detachable connection between the first area Zhui Duan 6, the second area Zhui Duan 7 is connected using bolt 13 and flange 14, and 13 He of bolt
Flange 14 has multiple.
Further, first straight tube area 1, the second straight tube area 2, third straight tube area 3, First Transition area 4, the second transition
Area 5, the first area Zhui Duan 6, the second area Zhui Duan 7 are spliced by two pieces of submodules are detachable, and two pieces of submodules are to hang down
Directly in ground and cross center line face it is symmetrical, the groove 11 includes the first groove 11-1, the second groove 11-2, described the
One groove 11-1 and the second groove 11-2 are located on two submodules, the fan shape center line of the first groove 11-1
With 45 ° of vertical direction angle, the fan shape center line of the second groove 11-2 with 45 ° of vertical direction angle, first groove
The arc length of 11-1, the arc length of the second groove 11-2 are less than the arc length of the submodule in first straight tube area 1.
Further, the dedicated repairing mould further includes support rod 8, and the support rod 8 has multiple, the support rod 8
Perpendicular to the center line setting in first straight tube area 1, the inner cavity of one end of the support rod 8 and the dedicated repairing mould connects
It connects, the other end of the support rod 8 is arranged on the inner wall of the fish torpedo ladle.
In actual mechanical process, support rod shows a meter font, supports dedicated repairing mould, the support rod distribution of rice font
So that dedicated repairing mould more can be preferably kept working condition, be unlikely to deform in the casting process of material for repairing, so that repairing
Torpedo tank liner afterwards restores original structure as far as possible.
Further, which is characterized in that the dedicated repairing mould further includes pull rod 9, the pull rod 9 have it is multiple, it is described
Pull rod 9 is parallel to horizontal plane setting, and the both ends of the pull rod 9 are connect with the inner cavity of the dedicated repairing mould respectively.
When actually setting up dedicated repairing mould, to the impact zone of torpedo tank liner, transition region, cone column bonding pad, conical ring
Section formwork is distinguished, the spacing between mold and bricking is adjusted according to the residual thickness of the processed torpedo tank liner of S3 step estimation,
Using spiral shell and use support rod 8, pull rod 9 and oil support by the impact zone of torpedo tank liner, transition region, cone column bonding pad, conical ring area
It fixes respectively, reuses bolt 13 and connect above each area with flange 14.
S6 is poured material for repairing between the dedicated repairing mould set up and torpedo tank liner.
It in practical operation, first to install, debug pumping-in equipment, after pumping-in equipment is debugged, be infused using colloidal sol Wetting pump
Then pipeline prepares castable again, be finally placed in castable in the hopper of pump note machine, and stir castable, castable is in
It while stirring, opens oil cylinder piston pump and carries out pump note, wherein oil cylinder working-pressure control is 5~7MPa, keeps castable uniform
The dedicated repairing mould of filling and torpedo tank liner between space.
Wherein, the process for preparing castable is as follows: first pouring into blender required material for repairing dry powder, stirs 2~3 points
Clock obtains dry blend, then 7~10% colloidal sol of the material for repairing dry powder weight is persistently poured into dry blend, wet mixing stirring 5
Obtain castable within~7 minutes.
It should be noted that material for repairing required for fish torpedo ladle is repaired is about 1~10 ton, the castable have with
Lower feature: castable is the gravity flow pouring material that colloidal sol combines；Mobility >=80%, the porosity≤15%；24 are toasted at 110 DEG C
Bulk density >=2.7g/cm3 after hour；High temperature break resistant intensity >=5MPa, cold crushing strength >=50MPa.
S7 after casting, removes the dedicated repairing mould in fish torpedo ladle.
After casting, to the casting lining static dismountable dedicated reparation mould in 12~16 hours rears of health in air
Tool.After due to casting, the casting lining just repaired is in substantially without the state of intensity, if removing dedicated reparation at this time
Mold will appear the case where castable is collapsed certainly, it is therefore necessary to the static health dismountable dedicated reparation mould in rear for a period of time
Tool.It can be toasted in fish torpedo ladle using small-sized roaster during casting lining static state health, this is because of the invention
Used material for repairing is colloidal sol, and colloidal sol is the dispersion liquid of nanoscale silica dioxide granule in water, wherein SiO2Accounting
30%, water accounting is 70%, is toasted using small-sized roaster, and the flare of this small-sized roaster is smaller, and heating rate is slow, repairing
Moisture in material can slowly evaporate, and will not damage to the solidification of material for repairing itself；If material for repairing dry initial stage just adopts
It is toasted with large-scale roaster, flame is bigger than normal, heats up fast, and the moisture evaporation in material for repairing is too fast, can be formed on material for repairing surface
Biggish stomata, be unfavorable for fish torpedo ladle after use the phase when resist molten iron erosion, will affect the service life of torpedo tank liner.
S8 handles the liner repaired in fish torpedo ladle.
Processing described in this step, which refers to, carries out curve baking and heat preservation 46~50 hours to pouring the liner that is poured in fish torpedo ladle,
Baking process is as follows:
150~200 DEG C are ramped up by room temperature, heating time is 10~14 hours, is kept the temperature at 150~200 DEG C, is kept the temperature
Time is 10~12 hours.This step is to exclude the free water in castable, i.e. mechanical water.
450~500 DEG C are ramped up by 150~200 DEG C, heating time is 5~6 hours, it is kept the temperature at 450~500 DEG C,
Soaking time is 8~10 hours, this step is to exclude the crystallization water in castable.
900~1000 DEG C are ramped up by 450~500 DEG C, heating time is 7~8 hours；It is kept the temperature at 900~1000 DEG C,
Soaking time is 2~6 hours.This step is to make colloidal sol monomer polymerization, and moisture thoroughly excludes, and ultimately forms silicon oxygen grid,
Playing makes castable combine closer effect, and forms certain mullitization internal, is aluminium silicon material in later period use
Further to mullite crystal transfer, improves use intensity and lay the foundation.
The invention discloses a kind of torpedo tank liner repairing methods, and wherein the reparation of torpedo tank liner is by means of dedicated reparation
11 structure of groove of mold, the first straight tube area 1 of dedicated repairing mould makes fish torpedo ladle restore impact zone construction well；It will
Fish torpedo ladle bricking from " glaze " is processed into " pitted skin " and in its external coating colloidal sol, allows the bricking of material for repairing and fish torpedo ladle
Bond strength is bigger, finer and close；Cooperate small-sized baking machine small fire baking and baking process later, the water in removal material for repairing
While dividing, the surface quality for repairing liner is maintained well, it is therefore prevented that fish torpedo ladle repairs the generation of liner stomata, mentions simultaneously
The high intensity and service life for repairing liner.
To facilitate the understanding of the present invention, present invention work more comprehensively, is meticulously described below in conjunction with embodiment, but this hair
Bright protection scope is not limited to embodiment in detail below.
Unless otherwise defined, all technical terms used hereinafter and the normally understood meaning of those skilled in the art
It is identical.Technical term used herein is intended merely to the purpose of description specific embodiment, is not intended to the limitation present invention
Protection scope.
Unless otherwise specified, various raw material, reagent, the instrument and equipment etc. used in the present invention, can pass through
Market is commercially available or can be prepared by existing method.
A kind of torpedo tank liner repairing method is described in detail below in conjunction with 2 specific examples.
Embodiment 1
A kind of torpedo tank liner repairing method is present embodiments provided, specific as follows:
When certain 260 tons of fish torpedo ladle access times is 667 times, cold inspection is carried out to it；
The residue in fish torpedo ladle is cleared up after cold inspection, which has a bulk of accumulation slag iron, first
Bulk accumulation slag iron handling is first gone out into tank with overhead traveling crane, is secondly cleaned out the slag iron in bricking, brickwork joint using electric pick；Again by 3
The flint clay particle of~5mm is packed into small-sized sprayer and flint clay particle is blown to torpedo using the compress wind of 4 kilograms of pressure
Tank bricking surface handles it.
Each spot size of processed torpedo tank liner is measured, and obtains bricking with fish torpedo ladle overhaul size comparison
Data are corroded, estimation is 285mm except the residual thickness of torpedo tank liner impact zone, and the residual thickness of transition region is 275mm, bores the residual thickness in column bonding pad
For 280mm, the residual thickness in conical ring area is 295mm.
Dedicated repairing mould is set up in the fish torpedo ladle measured.
Material for repairing is poured between the dedicated repairing mould set up and torpedo tank liner.It first installs, adjust before casting
Examination pumping-in equipment simultaneously makes castable.Wherein the control of material for repairing dry powder mixing time is 2 minutes, when the stirring of dry blend and colloidal sol
Between control be 5 minutes, wherein sol weight control be material for repairing dry powder weight 8%；Oil cylinder working-pressure control is 6MPa, castable
Weight control is 5 tons.
Castable liner static state conditioned time is 15 hours after casting；
The total time of the baking of castable liner and heat preservation is 48 hours, wherein baking and heat preservation method are as follows:
200 DEG C are ramped up by room temperature, heating time is 12 hours；
It is kept the temperature at 200 DEG C, soaking time is 10 hours；
500 DEG C are ramped up by 200 DEG C, heating time is 5 hours；
It is kept the temperature at 500 DEG C, soaking time is 10 hours；
900 DEG C are ramped up by 500 DEG C, heating time is 8 hours；
It is kept the temperature at 900 DEG C, soaking time is 3 hours.
It comes into operation after torpedo tank liner repairing in the present embodiment, the service life of material for repairing reaches good up to 200 times
Effect.
Embodiment 2
Unlike the first embodiment, in the present embodiment certain fish torpedo ladle access times be 673 times when to its cold inspection, because of fish
There is adherency clinker in the brickwork joint of thunder tank and bores iron phenomenon, therefore the residue of use electrically operated hammer, pneumatic pneumatic pick cleaning torpedo tank liner,
Residual iron.
Estimating the residual thickness of torpedo tank liner impact zone is 280mm, and the residual thickness of transition region is 260mm, bores the residual thickness in column bonding pad
For 270mm, the residual thickness of conical ring is 290mm.
During preparing castable, the control of material for repairing dry powder mixing time is 3 minutes, the mixing time of dry blend and colloidal sol
It is 6 minutes, wherein colloidal sol amount is the 8.5% of material for repairing dry powder weight；Oil cylinder working-pressure is maintained at 5MPa, and castable weight amount is 6
Ton.
After casting, castable liner static state conditioned time is 16 hours.
The total time of the baking of castable liner and heat preservation is 49 hours, wherein baking and heat preservation method are as follows:
180 DEG C are ramped up by room temperature, heating time is 11 hours；
It is kept the temperature at 180 DEG C, soaking time is 10 hours；
450 DEG C are ramped up by 180 DEG C, heating time is 6 hours；
It is kept the temperature at 450 DEG C, soaking time is 9 hours；
1000 DEG C are ramped up by 450 DEG C, heating time is 8 hours；It is kept the temperature at 1000 DEG C, soaking time is 3 hours.
It comes into operation after torpedo tank liner repairing in the present embodiment, the service life of material for repairing reaches good up to 220 times
Effect.
Embodiment provided above is better embodiment of the invention, only is used to facilitate to illustrate the present invention, not to this hair
The bright limitation made under any form has usually intellectual in any technical field, if not departing from the proposed skill of the present invention
In the range of art feature, using the equivalent embodiment for locally changing or modifying made by disclosed technology contents, and
Without departing from technical feature content of the invention, in the range of still falling within the technology of the present invention feature.
Claims (9)
1. a kind of torpedo tank liner repairing method, which is characterized in that the described method includes:
Set up dedicated repairing mould in fish torpedo ladle, the dedicated repairing mould is a cavity with radian, including first straight
Cylinder area (1), first straight tube area (1) is half cylinder, and the lateral wall in first straight tube area (1) has groove (11), institute
The downside that the first straight tube area (1) is arranged in inside the fish torpedo ladle is stated, tank mouth (10-1) orthographic projection of the fish torpedo ladle falls in institute
In the orthographic projection for stating groove (11)；
It is poured material for repairing between the dedicated repairing mould set up and the liner of the fish torpedo ladle, in the groove (11)
Material for repairing after being poured between torpedo tank liner has protrusion；
The dedicated repairing mould set up in the fish torpedo ladle is removed after the casting.
2. a kind of torpedo tank liner repairing method according to claim 1, which is characterized in that the dedicated repairing mould is also
Including the second straight tube area (2) and third straight tube area (3), second straight tube area (2) and third straight tube area (3) are respectively set
In the both ends in first straight tube area (1), second straight tube area (2) and third straight tube area (3) are half cylinder, described
Second straight tube area (2) and third straight tube area (3) are separately positioned on two side lower parts in the fish torpedo ladle.
3. a kind of torpedo tank liner repairing method according to claim 2, which is characterized in that the dedicated repairing mould is also
Including First Transition area (4), the second transition region (5),
One end of the First Transition area (4) and one end detachable connection in first straight tube area (1), the First Transition
One end detachable connection of the other end in area (4) and second straight tube area (2), one end of second transition region (5) with
The other end detachable connection in first straight tube area (1), the other end of second transition region (5) and the third straight tube
One end detachable connection in area (3)；The First Transition area (4) and second transition region (5) are respectively arranged at the fish
Two side lower parts in thunder tank.
4. a kind of torpedo tank liner repairing method according to claim 2, which is characterized in that the dedicated repairing mould is also
Including the first area Zhui Duan (6) and the second area Zhui Duan (7),
The one end in the area first Zhui Duan (6) and the other end detachable connection in second straight tube area (2), second cone
The one end in section area (7) and the other end detachable connection in third straight tube area (3),
The area first Zhui Duan (6) and the second area Zhui Duan (7) are respectively backwards to the second straight tube area (2), the direction in third straight tube area (3)
Extend,
The area first Zhui Duan (6) and the area second Zhui Duan (7) are respectively arranged at two side lower parts in the fish torpedo ladle.
5. a kind of torpedo tank liner repairing method according to claims 1 to 4, which is characterized in that first straight tube area
(1), the second straight tube area (2), third straight tube area (3), First Transition area (4), the second transition region (5), the first area Zhui Duan (6),
Plug tap section area (7) is spliced by two pieces of submodules are detachable, and two pieces of submodules are perpendicular to ground and mistake first
The face of the center line in straight tube area (1) is symmetrical,
The groove (11) includes the first groove (11-1), the second groove (11-2), first groove (11-1) and described the
Two grooves (11-2) are located on two submodules, the fan shape center line and vertical direction angle of first groove (11-1)
45 °, the fan shape center line of second groove (11-2) with 45 ° of vertical direction angle, the arc length of first groove (11-1),
The arc length of second groove (11-2) is less than the arc length of the submodule in first straight tube area (1).
6. a kind of torpedo tank liner repairing method according to claim 1, which is characterized in that the dedicated repairing mould is also
Including support rod (8), the support rod (8) has multiple, center of the support rod (8) perpendicular to first straight tube area (1)
Line setting, one end of the support rod (8) are connect with the inner cavity of the dedicated repairing mould, the other end of the support rod (8)
It is arranged on the inner wall of the fish torpedo ladle.
7. a kind of torpedo tank liner repairing method according to claim 1, which is characterized in that the dedicated repairing mould is also
Including pull rod (9), the pull rod (9) has multiple, and the pull rod (9) is parallel to horizontal plane setting, the both ends of the pull rod (9) point
It is not connect with the inner cavity of the dedicated repairing mould.
8. a kind of torpedo tank liner repairing method according to claim 1, which is characterized in that set up in the fish torpedo ladle
Further include before dedicated repairing mould,
Cold inspection is carried out to the fish torpedo ladle for needing to repair liner；
Residue cleaning and inner lining surface processing in tank body are carried out to the fish torpedo ladle after cold inspection；
Liner dimensional measurement is carried out to processed fish torpedo ladle and estimates the residual thickness of liner；
To the processing of torpedo tank liner surface second.
9. a kind of torpedo tank liner repairing method according to claim 1, which is characterized in that torn open after the casting
Except further including after the dedicated repairing mould set up in the fish torpedo ladle,
The liner repaired in fish torpedo ladle is handled.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910838055.2A CN110487076B (en) | 2019-09-05 | 2019-09-05 | Torpedo tank lining repairing method |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910838055.2A CN110487076B (en) | 2019-09-05 | 2019-09-05 | Torpedo tank lining repairing method |
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| CN110487076A true CN110487076A (en) | 2019-11-22 |
| CN110487076B CN110487076B (en) | 2021-02-19 |
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| CN201910838055.2A Active CN110487076B (en) | 2019-09-05 | 2019-09-05 | Torpedo tank lining repairing method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110918967A (en) * | 2019-12-13 | 2020-03-27 | 安徽马钢工程技术集团有限公司 | Repairing method for inner liner of torpedo hot metal mixer car |
| CN112629265A (en) * | 2020-12-21 | 2021-04-09 | 宝武重工有限公司 | Repairing method for inner liner of torpedo hot metal mixer car |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201008968Y (en) * | 2007-04-09 | 2008-01-23 | 巩义市五耐科技开发有限公司 | Internal lining construction of torpedo pot |
| CN204159861U (en) * | 2014-10-31 | 2015-02-18 | 河南省新密市东州耐火材料有限公司 | Shock resistance type torpedo tank lining structure therewith |
| CN108115123A (en) * | 2017-11-23 | 2018-06-05 | 武汉钢铁集团耐火材料有限责任公司 | The maintaining method of fish torpedo ladle straight tube slag line area working lining |
-
2019
- 2019-09-05 CN CN201910838055.2A patent/CN110487076B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201008968Y (en) * | 2007-04-09 | 2008-01-23 | 巩义市五耐科技开发有限公司 | Internal lining construction of torpedo pot |
| CN204159861U (en) * | 2014-10-31 | 2015-02-18 | 河南省新密市东州耐火材料有限公司 | Shock resistance type torpedo tank lining structure therewith |
| CN108115123A (en) * | 2017-11-23 | 2018-06-05 | 武汉钢铁集团耐火材料有限责任公司 | The maintaining method of fish torpedo ladle straight tube slag line area working lining |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110918967A (en) * | 2019-12-13 | 2020-03-27 | 安徽马钢工程技术集团有限公司 | Repairing method for inner liner of torpedo hot metal mixer car |
| CN112629265A (en) * | 2020-12-21 | 2021-04-09 | 宝武重工有限公司 | Repairing method for inner liner of torpedo hot metal mixer car |
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| Publication number | Publication date |
|---|---|
| CN110487076B (en) | 2021-02-19 |
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