CN105624353B - A kind of online erecting device of thermocouple for blast furnace temperature-measuring - Google Patents
A kind of online erecting device of thermocouple for blast furnace temperature-measuring Download PDFInfo
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- CN105624353B CN105624353B CN201610214495.7A CN201610214495A CN105624353B CN 105624353 B CN105624353 B CN 105624353B CN 201610214495 A CN201610214495 A CN 201610214495A CN 105624353 B CN105624353 B CN 105624353B
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- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B7/00—Blast furnaces
- C21B7/24—Test rods or other checking devices
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Abstract
The invention discloses a kind of online erecting device of the thermocouple for blast furnace temperature-measuring, belong to blast furnace temperature detection field in metallurgy industry.The present invention's includes grouting mechanism and sealing mechanism, and slurry flow port is provided with grouting mechanism, and the slurry flow port is used to discharge unnecessary slurries after slurries filling gap, and described slurry flow port is located remotely from one end of sealing mechanism.The grout outlet mouth of pipe of the present invention is arranged at the one end of grout outlet away from sealing mechanism, so that slurries are during slurries fill gap, only slurries are full of whole gap, slurries just can flow into grout outlet from the grout outlet mouth of pipe, the effectively gap of filling mounting hole, so as to effectively eliminate air gap caused by slurries filling process so that the temperature actual response of thermocouple measurement goes out the temperature of cupola well carbon brick.
Description
Technical field
The present invention relates to blast furnace temperature detection field in metallurgy industry, is used for blast furnace temperature-measuring more specifically to one kind
The online erecting device of thermocouple.
Background technology
Blast furnace is the important component of integrated iron and steel works, and blast-furnace technique economic indicator is good, and technique is simple, output
Greatly, labor productivity is high, and energy consumption is low, and its pig iron produced accounts for more than the 95% of world iron total output.Nowadays, prolonging campaign is existing
The target pursued for blast furnace, prolonging campaign mean that the raising of economic benefit.Wherein, blast furnace crucibe, furnace bottom are blast furnace lifes
Production safety and the long-lived most important thing, from current statistics, domestic and international blast furnace crucibe, which burns, mostly occurs in side wall or side wall and stove
The corner at bottom, at once interior elephant pin attack sites being commonly called as.
At present, blast furnace crucibe, furnace bottom state mainly judge the residual thickness of cupola well by thermocouple detection temperature to calculate.Cause
This, cupola well, bottom temperature on-line monitoring have turned into the important means of monitoring cupola well furnace bottom erosion state, and establish cupola well furnace bottom
Liner corrodes condition necessary to mathematical modeling.For blast furnace when newly-built, furnace bottom and bosh gas index all bury a number of thermoelectricity
Even, but the adverse circumstances with the passage of production and cupola well in itself, originally the installation site of pre-buried thermocouple is deviateed,
The temperature of detection lacks authenticity and validity, and monitoring of the cupola well galvanic couple failure undoubtedly to cupola well state brings many blind areas, given
Brick lining in blast furnace chamber corrodes monitoring and production safety brings hidden danger.
Being additionally, since directly can not insert thermocouple in carbon brick, the drilling installation thermocouple generally on carbon brick, but adopt
Drilled installation thermocouple with existing technology on blast furnace, easily causes the installation of TC inaccuracy, thermocouple heat conduction, thermometric are made
Into very big influence so that thermocouple is big to the measurement error of blast furnace crucibe, bottom temperature so that can not timely monitor stove on-line
Cylinder furnace bottom erosion state.Serious potential safety hazard is brought to blast fumance, this technical problem is urgently to be resolved hurrily.
Through retrieval, existing related art scheme discloses.Innovation and creation it is entitled：The thermocouple fixed online for blast furnace
(China Patent No.：ZL201220006445.7, the applying date：A kind of 2012-01-09) the thermocouple installed online with blast furnace crucibe
(China Patent No.：ZL201420711679.0, the applying date：2014-11-24)[1-2]Although improve the installation of blast furnace thermocouple
Method and erecting device, but the error of thermocouple is larger after installing, it is difficult to reach the requirement of field application.
Bibliography：
[1] Baoshan Iron ＆ Steel Co., Ltd is used for the thermocouple that blast furnace is installed online：China, ZL201220006445.7
[P].2012-10-10.
[2] Hypon is full of the thermocouple that a kind of industrial furnace Engineering Co., Ltd blast furnace crucibes of are installed online on：China,
ZL201420711679.0[P].2015-03-25.
The content of the invention
1. invention technical problems to be solved
The purpose of the present invention be exactly solve in the prior art blast furnace change after thermocouple measurement error it is big so that thermoelectricity
Occasionally can not actual response go out the temperature of carbon brick, there is provided a kind of online erecting device of thermocouple for blast furnace temperature-measuring, so as to reduce
The measurement error of thermocouple, realize the on-line monitoring of cupola well furnace bottom erosion state.
2. technical scheme
To reach above-mentioned purpose, technical scheme provided by the invention is：
A kind of online erecting device of thermocouple for blast furnace temperature-measuring of the present invention, including grouting mechanism and sealing mechanism,
Slurry flow port is provided with grouting mechanism, the slurry flow port is used to discharge unnecessary slurry after slurries filling gap
Liquid, described slurry flow port are located remotely from one end of sealing mechanism.
Further, grouting mechanism includes pulp-inlet pipe and grout outlet, and the grout outlet mouth of pipe is slurry flow port, grout outlet pipe
Mouth is arranged at the one end of grout outlet away from sealing mechanism.
Further, in addition to fixed component, the thermometric end of thermocouple are fixed by fixed component, fixed component
One end with installation bore end contact, wherein：Described mounting hole is for the mounting hole in stove epidermis face installation thermocouple；Peace
It is to be drilled by drilling machine in stove epidermis face to fill hole, and drill bit sequentially passes through stove skin, filler, cooling wall and ramming mass, and bores
Enter carbon brick, be mounting hole after the completion of drilling, drilling end position is to install bore end.
Further, fixed component both ends are respectively arranged with coated ends and slurry output end, the coated ends and peace of fixed component
Bore end joint is filled, is provided with slurry coating in coated ends, fixed component is slurry output end away from coated ends, and slurry output end is provided with
Grout outlet, grout outlet are provided with the grout outlet mouth of pipe close to the position of fixed component slurry output end.
Further, grouting mechanism also includes outer tube, slurry-inlet valve and air bleeding valve；Described outer tube is horizontally disposed
Hollow pipe, the both ends of outer tube are respectively arranged with fixing end and sealed end, wherein the fixing end of outer tube with stove is skin-deep is connected,
The one end of described outer tube away from stove skin is sealed end, and sealing mechanism is provided with sealed end, is set on described outer tube
There is pulp-inlet pipe, and pulp-inlet pipe is located at the top of outer tube, pulp-inlet pipe is connected with outer tube, and slurries flow into overcoat through pulp-inlet pipe
Pipe, fill the gap of mounting hole；The one end of described pulp-inlet pipe away from outer tube is provided with slurry-inlet valve, above-mentioned slurry-inlet valve and outer
Exhaust branch pipe is provided with pulp-inlet pipe between sleeve pipe, and air bleeding valve is provided with exhaust branch pipe；
Grout outlet is tubular structure, and grout outlet extends to overcoat by fixed component slurry output end along the length direction of outer tube
The outside of pipe, and grout outlet is fixed by sealing mechanism, the one end of grout outlet away from fixed component is provided with slurry-supplying valve, Gu
The slurries for determining part slurry output end flow into grout outlet by the grout outlet mouth of pipe, and are discharged by slurry-supplying valve.
Further, sealing mechanism includes first flange, second flange and pad, described second flange and outer tube
Sealed end be fixedly connected with, be provided with pad between described second flange and first flange.
Further, fixing hole is provided with the sealing mechanism, to fixed thermocouple and grout outlet.
Further, on the circumferential edges position of described first flange and the circumferential edges position of second flange uniformly
Be provided with corresponding screw fixed hole, screw is fixed first flange, second flange and pad by screw fixed hole.
Further, thermocouple fixing hole, the first thermocouple and the second thermocouple are offered in described fixed component
Thermometric end be arranged on thermocouple fixing hole in.
Further, the first thermocouple temperature measurement end end face and the second thermocouple temperature measurement end end face be not in same perpendicular
On.
3. beneficial effect
Using technical scheme provided by the invention, compared with existing known technology, have the advantages that：
(1) the grout outlet mouth of pipe of the invention is arranged at the one end of grout outlet away from sealing mechanism so that slurries are filled out in slurries
During filling gap, only slurries are full of whole gap, and slurries can just flow into grout outlet, effectively filling peace from the grout outlet mouth of pipe
The gap in hole is filled, prevents slurries filling process from producing air gap；
(2) slurry coating is provided with fixed component coated ends of the invention, slurry coating causes the coating of fixed component
It when end fully contacts with installation bore end, can be effectively discharged out installing the gas of bore end, and gap effectively, is fully filled out
Fill, so as to effectively eliminate air gap caused by slurries filling process so that directly contacted between the thermocouple and carbon brick after installation.
(3) thermometric end of thermocouple is fixed by fixed component, and thermocouple fixing hole is offered in fixed component,
The thermometric end of first thermocouple and the second thermocouple is arranged in thermocouple fixing hole, so as to prevent thermocouple in the process of installation
Deviate pre-installed position, one end of fixed component contacts with installation bore end, ensures the accuracy of position of thermocouple.
(4) during the present invention vacuumizes, the gas in mechanism of being in the milk, the slurry coating of fixed component and it is previously implanted
Gas in slurries, it can be separated out during vacuumizing, so as to prevent air gap, so as to improve the measurement of the installation of TC
Precision；
(5) in the installation method of thermocouple of the present invention, when being pre-processed to fixed component, in consolidating equipped with thermocouple
The coated ends for determining part smear slurry coating, and are previously implanted slurries on the carbon brick of installation bore end using injection-tube, solid
Determine part with installation bore end contact when, prevent air gap so that slurries are sufficient filling with, and are filled out so as to effectively eliminate slurries
Fill air gap caused by process so that thermocouple measuring temperature actual response goes out the temperature of cupola well carbon brick；
(6) the online mounting process of blast furnace thermocouple of the invention, creative proposition is by contrasting the front and rear of temperature measuring point
The temperature difference, two temperature measuring point temperature difference differences, so as to judge whether the installation of TC meets standard, ensure that the qualified of blast furnace thermocouple
Installation.
Brief description of the drawings
Fig. 1 is the structure schematic diagram that the present invention is arranged on blast furnace furnace wall；
Fig. 2 is the structural representation of the pad of the present invention；
Fig. 3 is the structural representation of the sealing mechanism of the present invention；
A kind of overall structure diagram of the online erecting device of thermocouple for blast furnace temperature-measuring of Fig. 4 present invention；
The installation of TC method flow diagram of Fig. 5 present invention；
The structural representation of Fig. 6 embodiment of the present invention 4；
The blast furnace thermocouple flow of installation figure of Fig. 7 present invention.
Label declaration in schematic diagram：
1st, fixed component；21st, the first thermocouple；22nd, the second thermocouple；31st, grout outlet；32nd, the grout outlet mouth of pipe；33rd, go out
Starch valve；4th, outer tube；51st, pulp-inlet pipe；52nd, slurry-inlet valve；53rd, air bleeding valve；61st, first flange；62nd, second flange；7th, pad；
71st, the first fixing hole；72nd, the second fixing hole；73rd, grout outlet fixing hole；74th, the 3rd fixing hole；8th, stove skin；9th, filler；10th, it is cold
But wall；11st, ramming mass；12nd, carbon brick；13rd, slurry coating.
Embodiment
With reference to embodiment and Figure of description, the present invention is described in detail.
Embodiment 1
With reference to Fig. 1,2,3,4,5 and 7, a kind of online erecting device of thermocouple for blast furnace temperature-measuring of the invention, including
Mechanism of being in the milk and sealing mechanism, slurry flow port is provided with grouting mechanism, the slurry flow port is used for slurries filling gap
After discharge unnecessary slurries, described slurry flow port is located remotely from one end of sealing mechanism；Due to slurry flow port position
In one end away from sealing mechanism so that slurries can exclude the gas of mounting hole completely during gap is filled, only
There are slurries to be full of whole gap, slurries just can prevent slurries filling process from producing air gap, so as to improve thermoelectricity from slurry flow port
Even accuracy.
Grouting mechanism includes pulp-inlet pipe 51 and grout outlet 31, and the grout outlet mouth of pipe 32, grout outlet pipe are provided with grout outlet 31
Mouth 32 is slurry flow port, and the grout outlet mouth of pipe 32 is arranged at the one end of grout outlet 31 away from sealing mechanism.Pulp-inlet pipe 51 is used for will
Slurries introduce the gap of the grouting mechanism filling online erecting device of thermocouple, and after slurries fill gap, slurries are by grout outlet
The mouth of pipe 32 flows into grout outlet 31, and grout outlet 31 is used to discharge unnecessary slurries, because the grout outlet mouth of pipe 32 is arranged at grout outlet 31
One end away from sealing mechanism so that slurries are during slurries fill gap, and only slurries are full of whole gap, and slurries are
Grout outlet 31 can be flowed into from the grout outlet mouth of pipe 32, the gap of mounting hole is effectively filled, prevents slurries filling process from producing air gap.
The present invention includes fixed component 1, and the thermometric end of thermocouple is fixed by fixed component 1, and the one of fixed component 1
End contacts with installation bore end, wherein：Described mounting hole is for the mounting hole in the surface of stove skin 8 installation thermocouple；Installation
Hole is to be drilled by drilling machine on the surface of stove skin 8, and drill bit sequentially passes through stove skin 8, filler 9, cooling wall 10 and ramming mass 11,
And carbon brick 12 is pierced, it is mounting hole after the completion of drilling, drilling end position is to install bore end, and above-mentioned mounting hole can be with
It is the hole or drilled on the position of thermocouple of original damage that drilling machine newly bores on blast furnace furnace wall.Institute
The fixed component 1 stated is cylindrical carbon-point, the diameter of the diameter ＜ mounting holes of carbon-point, is opened up at the circumferential edges of cylindrical carbon-point
There is thermocouple fixing hole.
The thermometric end of thermocouple is fixed by fixed component 1, and 2 thermocouples are offered in fixed component 1 and are fixed
The thermometric end of hole, the first thermocouple 21 and the second thermocouple 22 is arranged in thermocouple fixing hole.So as to prevent thermocouple from pacifying
The process of dress deviates pre-installed position, and one end of fixed component 1 contacts with installation bore end, ensures the standard of position of thermocouple
True property.The thermometric end end face of first thermocouple 21 is with the thermometric end end face of the second thermocouple 22 not on same perpendicular.First heat
The horizontal range of the thermometric end end face of galvanic couple 21 and the thermometric end end face of the second thermocouple 22 is 100mm.
The both ends of fixed component 1 are respectively arranged with coated ends and slurry output end, and the coated ends of fixed component 1 are with installing bore end phase
Place is met, slurry coating 13 is provided with coated ends, fixed component 1 is slurry output end away from coated ends, and slurry output end is provided with grout outlet
31, grout outlet 31 is provided with the grout outlet mouth of pipe 32 close to the position of the slurry output end of fixed component 1.The coated ends of fixed component 1 are smeared
There is slurry coating 13, can be effectively when slurry coating 13 causes the coated ends of fixed component 1 fully to be contacted with installation bore end
Discharge installation bore end gas, and by gap effectively, be sufficient filling with；Leaned on because the grout outlet mouth of pipe 32 of grout outlet 31 is arranged at
The nearly slurry output end of fixed component 1, during grout filling gap, only slurries are full of the gap of mounting hole, and slurries just can be from grout outlet pipe
Mouth 32 flows into grout outlets 31, effectively fills the gap of mounting hole.
The present invention includes grouting mechanism and sealing mechanism, and grouting mechanism includes pulp-inlet pipe 51, grout outlet 31, outer tube 4, entered
Starch valve 52 and air bleeding valve 53；Described outer tube 4 is horizontally disposed hollow pipe, the center line of described outer tube 4 and installation
For the center line in hole on same straight line, the both ends of outer tube 4 are respectively arranged with fixing end and sealed end, wherein outer tube 4
Fixing end is fixedly connected with stove skin 8, and the fixing end of outer tube 4 uses to be welded and fixed with stove skin 8 to be connected, and needs to detect outer tube
4 fixing end and the air-tightness of the junction of stove skin 8, air-tightness well could normal uses；Described outer tube 4 is away from stove skin 8
One end be sealed end, be provided with sealing mechanism on sealed end；
Be provided with pulp-inlet pipe 51 on described outer tube 4, and pulp-inlet pipe 51 is located at the top of outer tube 4, pulp-inlet pipe 51 with
Outer tube 4 is connected, and slurries flow into outer tube 4 through pulp-inlet pipe 51, fills the gap of mounting hole；Described pulp-inlet pipe 51 is away from outer
One end of sleeve pipe 4 is provided with slurry-inlet valve 52, and exhaust branch is provided with the pulp-inlet pipe 51 between above-mentioned slurry-inlet valve 52 and outer tube 4
Pipe, and air bleeding valve 53 is provided with exhaust branch pipe；Grout outlet 31 is tubular structure, and grout outlet 31 is by the slurry output end edge of fixed component 1
The length direction for outer tube 4 extends to the outside of outer tube 4, and grout outlet 31 is fixed by sealing mechanism, grout outlet
31 one end away from fixed component 1 are provided with slurry-supplying valve 33, and the slurries of the slurry output end of fixed component 1 are flowed into out by the grout outlet mouth of pipe 32
Pipe 31 is starched, and is discharged by slurry-supplying valve 33.Because the grout outlet mouth of pipe 32 is arranged on the slurry output end of fixed component 1 so that slurries are being filled
During mounting hole and outer tube 4, slurries first fill the coated ends that fixed component 1 contacts with mounting hole, effectively filling installation
Gap between hole and fixed component 1, filling finishes rear slurry just can flow into grout outlet 31 from the grout outlet mouth of pipe 32, prevent slurries
Filling process produces air gap.
Vavuum pump is connected with the exit of air bleeding valve 53, and closes slurry-inlet valve 52 and slurry-supplying valve 33, opens air bleeding valve 53
Grouting mechanism is vacuumized by vavuum pump, so as to which the gas that will be in the milk in mechanism is discharged, prevented in follow-up filling process
Gas produces air gap；After the completion of vacuumizing, air bleeding valve 53 is closed, opens slurry-inlet valve 52, slurries pour into outer tube 4 by pulp-inlet pipe 51
With fill gap in mounting hole, pressure reaches 0.005MPa during grouting.
Gap filling in outer tube 4 and mounting hole is completed, and slurry-supplying valve 33 is opened, in the slurries of the slurry output end of fixed component 1
Grout outlet 31 is flowed into by the grout outlet mouth of pipe 32, and discharged by slurry-supplying valve 33, the grout outlet mouth of pipe 32 is disposed in proximity to fixed component 1 and gone out
End is starched, during grout filling gap, slurries can effectively fill the gap of mounting hole.Pulp is provided with the pad 7 of sealing mechanism
Pipe fixing hole 73, grout outlet 31 pass through grout outlet fixing hole 73, and grout outlet 31 is fixed by grout outlet fixing hole 73, so as to
Fixation of the sealing mechanism to grout outlet 31 is realized, it is close also by outside progress of the grout outlet fixing hole 73 to grout outlet 31
Envelope, prevent slurries from being overflowed from the contact position of grout outlet 31 and pad 7.
Sealing mechanism includes first flange 61, second flange 62 and pad 7, described second flange 62 and outer tube 4
Sealed end is fixedly connected with, and pad 7 is provided between described second flange 62 and first flange 61.First flange 61, second flange
62 and pad 7 be used for by the sealed end of outer tube 4 seal, on the one hand prevent gas leakage during vacuumizing, on the other hand, prevent from starching
Liquid overflows from the sealed end of outer tube 4.
Fixing hole is provided with the sealing mechanism, to fixed thermocouple and grout outlet 31.On the pad 7 of sealing mechanism
The first fixing hole 71, the second fixing hole 72 and grout outlet fixing hole 73 are provided with, the first thermocouple 21, the second thermocouple 22 pass through
First fixing hole 71, the second fixing hole 72 are fixed, and grout outlet 31 is fixed by grout outlet fixing hole 73.First fixes
While first thermocouple 21, the second thermocouple 22 are fixed for hole 71, the second fixing hole 72, also by the heat of pad 7 and first
Galvanic couple 21, the contact position of the second thermocouple 22 are sealed, and prevent slurries from the first thermocouple 21, the second thermocouple 22 and pad
The contact position of piece 7 overflows.
Uniformly set on the circumferential edges position of described first flange 61 and the circumferential edges position of second flange 62
There is corresponding screw fixed hole, screw is fixed first flange 61, second flange 62 and pad 7 by screw fixed hole.The
One flange 61 and second flange 62 are fixed by screw, and by first flange 61, second flange 62 and pad 7 by overcoat
Pipe 4 is sealed.
Existing blast furnace thermocouple installs equipment, when installing thermocouple post-grouting, slurry at thermocouple temperature sensitive head without
Method effectively fills gap and the exhaust of mounting hole, can not directly be contacted between thermocouple and carbon brick, be also easy to produce vent plug, easily cause thermoelectricity
Even installation is inaccurate, thermocouple heat conduction, thermometric is made a big impact so that survey of the thermocouple to blast furnace crucibe, bottom temperature
It is big to measure error so that can not timely monitor cupola well furnace bottom erosion state on-line, it is hidden to bring serious safety to blast fumance
Suffer from.
As shown in figure 5, the installation method of the thermocouple of the present invention, it is comprised the following steps that：
Step 1：Drilling
Drilled using drilling machine from the surface of stove skin 8, be mounting hole after the completion of drilling；The specific steps of drilling are such as
Under：
A) drilled after blast furnace staying using drilling machine on the surface of stove skin 8, drill bit sequentially pass through stove skin 8, filler 9,
Cooling wall 10 and ramming mass 11, and carbon brick 12 is pierced, it is mounting hole after the completion of drilling；Drilling end position is mounting hole end
End, horizontal range of the installation bore end apart from the surface of stove skin 8 is 565mm, a diameter of 30mm of mounting hole.
B) mounting hole is cleared up using hairbrush.Caused particulate matter in boring procedure is removed.
Step 2：Thermocouple is installed
Thermocouple is fitted into mounting hole, slurries are poured into and gap is filled in mounting hole, and installation is completed after grout cures.Peace
Dress thermocouple comprises the following steps that：
A) pre-process：By the installation of TC in fixed component 1, injected using injection-tube on the carbon brick of installation bore end
Slurries；Detailed step is as follows：
A) thermocouple fixing hole is opened up in fixed component 1 using drilling machine, and by thermocouple fixing hole by thermocouple
In fixed component 1；Slurry coating 13 is smeared in the coated ends of the fixed component 1 equipped with thermocouple, slurry coating 13 applies
It is wiped with 1-2cm3Slurries；
B) injection-tube is cleaned using distilled water；Load 5cm after being completely dried in injection-tube3Slurries, will note
Penetrate in the inlet insertion mounting hole of pipe, until inlet is withstood on the carbon brick 12 of installation bore end, extrude injection-tube by slurries
The end of mounting hole is injected, during injection slurry, injection-tube first according to a direction is rotated 720 degree, then negative side again
To 720 degree of rotation, the injection rate of slurries is 4cm3, slurries be adhered on carbon brick 12 and smear uniformly.
B) install：Thermocouple is fitted into mounting hole with fixed component 1, then poured into slurries in mounting hole between filling
Gap；Detailed step is as follows：
A) it is fixed
The fixing end of outer tube 4 is arranged on the surface of stove skin 8, described outer tube 4 is arranged in stove by being welded and fixed
The surface of skin 8, the first thermocouple 21, the second thermocouple 22 and fixed component 1 are fitted into mounting hole from outer tube 4, fixed component 1
Coated ends end withstands on the carbon brick 12 of installation bore end, then the sealing mechanism of the sealed end of outer tube 4 is fixed into sealing, and
Detect sealing mechanism, outer tube 4 and the air-tightness on the surface of stove skin 8；After installation, the thermometric end end face of the first thermocouple 21 and stove
The horizontal range on the surface of skin 8 is 465mm, and horizontal range of second thermocouple 22 apart from the surface of stove skin 8 is 565mm；First thermoelectricity
The horizontal range of even 21 thermometric end end faces and the thermometric end end face of the second thermocouple 22 is 100mm.
B) vacuumize
Vavuum pump is connected with the exit of air bleeding valve 53, and closes slurry-inlet valve 52 and slurry-supplying valve 33, opens air bleeding valve 53
Vacuumized by vavuum pump；During vacuumizing, the gas in mechanism of being in the milk, the He of slurry coating 13 of fixed component 1
The gas being previously implanted in slurries, it can be separated out during vacuumizing, so as to prevent air gap.
C) it is in the milk
After vacuumizing completion, air bleeding valve 53 is closed, opening slurry-inlet valve 52, which pours into slurries in outer tube 4 and mounting hole, to be filled out
Gap is filled, when pressure reaches 0.005MPa when grouting, opens slurry-supplying valve 33, until grout outlet 31 has slurries outflow；
D) it is compacted
Slurry-supplying valve 33 is closed, increase grouting pressure reaches 0.05MPa, keeps 5min；
After furnace compound wind, after being filled in the grout cures in gap, that is, installation is completed.
The present invention is arranged at the one end of grout outlet 31 away from sealing mechanism due to the grout outlet mouth of pipe 32 so that slurries are in slurries
During filling gap, only slurries are full of whole gap, and slurries just can flow into grout outlet 31 from the grout outlet mouth of pipe 32, effectively
The gap of mounting hole is filled, prevents slurries filling process from producing air gap；Slurry coating 13 is provided with the coated ends of fixed component 1,
When slurry coating 13 causes the coated ends of fixed component 1 fully to be contacted with installation bore end, mounting hole end can be effectively discharged out
The gas at end, and by gap effectively, be sufficient filling with, so as to effectively eliminate air gap caused by slurries filling process so that peace
Directly contacted between thermocouple and carbon brick after dress, improve the accuracy of thermometric so that the temperature for installing thermocouple measurement is true
Reflect the temperature of cupola well carbon brick.
In addition, the installation method of the thermocouple of the present invention, when being pre-processed to fixed component 1, equipped with thermocouple
Fixed component 1 coated ends smear slurry coating 13, and using injection-tube installation bore end carbon brick 12 on, be previously implanted
Slurries, when fixed component 1 contacts with installation bore end, prevent air gap so that slurries are sufficient filling with, so as to effectively disappear
Except air gap caused by slurries filling process so that the temperature actual response of thermocouple measurement goes out the temperature of cupola well carbon brick.
With reference to Fig. 7, blast furnace thermocouple is changed during execute-in-place：The online mounting process of blast furnace thermocouple, specific step
It is rapid as follows：
Step 1：Digitalisation, drilled using drilling machine from the surface of stove skin 8, when drilling to carbon brick 12, measurement temperature
Degree, and it is t to record temperature, is mounting hole after the completion of drilling；Detailed step is as follows：
A) drilled after blast furnace staying using drilling machine on the surface of stove skin 8, drill bit sequentially pass through stove skin 8, filler 9,
Cooling wall 10 and ramming mass 11, and carbon brick 12 is pierced, it is mounting hole after the completion of drilling；
B) drilling to the middle part of carbon brick 12 is the first temperature measuring point, and the first temperature measuring point and the horizontal range on the surface of stove skin 8 are
465mm, the measurement temperature of the first temperature measuring point carbon brick 12 is t1, at the end of drilling, as the end of mounting hole, the end of mounting hole are
Second temperature measuring point, the second temperature measuring point and the horizontal range on the surface of stove skin 8 are 565mm, and the measurement temperature of the second temperature measuring point carbon brick 12 is
t2；By temperature t1And t2Record is as shown in table 1, and mounting hole is cleared up using hairbrush.
Step 2：Thermocouple is installed
Thermocouple is fitted into mounting hole, slurries are poured into and gap is filled in mounting hole, and installation is completed after grout cures.Peace
Dress thermocouple comprises the following steps that：
A) pre-process：By the installation of TC in fixed component 1, injected using injection-tube on the carbon brick of installation bore end
Slurries；Detailed step is as follows：
A) thermocouple fixing hole is opened up in fixed component 1 using drilling machine, and by thermocouple fixing hole by thermocouple
In fixed component 1；Slurry coating 13 is smeared in the coated ends of the fixed component 1 equipped with thermocouple, slurry coating 13 applies
It is wiped with 1-2cm3Slurries；
B) injection-tube is cleaned using distilled water；Load 5cm after being completely dried in injection-tube3Slurries, will note
Penetrate in the inlet insertion mounting hole of pipe, until inlet is withstood on the carbon brick 12 of installation bore end, extrude injection-tube by slurries
The end of mounting hole is injected, during injection slurry, injection-tube first according to a direction is rotated 720 degree, then negative side again
To 720 degree of rotation, the injection rate of slurries is 4cm3, slurries be adhered on carbon brick 12 and smear uniformly.
B) install：Thermocouple is fitted into mounting hole with fixed component 1, then poured into slurries in mounting hole between filling
Gap；Detailed step is as follows：
A) it is fixed
The fixing end of outer tube 4 is arranged on the surface of stove skin 8, described outer tube 4 is arranged in stove by being welded and fixed
The surface of skin 8, the first thermocouple 21, the second thermocouple 22 and fixed component 1 are fitted into mounting hole from outer tube 4, fixed component 1
Coated ends end withstands on the carbon brick 12 of installation bore end, then the sealing mechanism of the sealed end of outer tube 4 is fixed into sealing, and
Detect sealing mechanism, outer tube 4 and the air-tightness on the surface of stove skin 8；After installation, the thermometric end end face of the first thermocouple 21 and stove
The horizontal range on the surface of skin 8 is 465mm, and horizontal range of second thermocouple 22 apart from the surface of stove skin 8 is 565mm；First thermoelectricity
The horizontal range of even 21 thermometric end end faces and the thermometric end end face of the second thermocouple 22 is 100mm.
B) vacuumize
Vavuum pump is connected with the exit of air bleeding valve 53, and closes slurry-inlet valve 52 and slurry-supplying valve 33, opens air bleeding valve 53
Vacuumized by vavuum pump；During vacuumizing, the gas in mechanism of being in the milk, the He of slurry coating 13 of fixed component 1
The gas being previously implanted in slurries, it can be separated out during vacuumizing, so as to prevent air gap.
C) it is in the milk
After vacuumizing completion, air bleeding valve 53 is closed, opening slurry-inlet valve 52, which pours into slurries in outer tube 4 and mounting hole, to be filled out
Gap is filled, when pressure reaches 0.005MPa when grouting, opens slurry-supplying valve 33, until grout outlet 31 has slurries outflow；
D) it is compacted
Slurry-supplying valve 33 is closed, increase grouting pressure reaches 0.05MPa, keeps 5min；
Step 3：Accuracy detects,
A after) being filled in the grout cures in gap, the registration of the thermocouple after installation is read, wherein the first thermocouple 21
Measurement temperature is t1ˊ, the measurement temperature of the second thermocouple 22 are t2ˊ；
B) as | (t1-t1ˊ)/t |≤5%, | (t2-t2ˊ)/t |≤5%, and | 1- (t2ˊ-t1ˊ)/(t2-t1) |≤10%, i.e.,
Determine that the installation of TC is accurate, meet using standard；Otherwise, then reinstall, and repeat step 1 to step 3.
Comparative example 1
The substance of this comparative example is with embodiment 1, its difference：The online mounting process of blast furnace thermocouple
Step 2：Using innovation and creation：Blast furnace is carried out for the thermocouple (patent No. ZL201220006445.7) that blast furnace is installed online
The installation of TC, after installation, the horizontal range on the surface of recording distance stove skin 8 is 465mm the first temperature measuring point thermocouple
Temperature is t ˊ1, the temperature for the second temperature measuring point thermocouple that the horizontal range on the surface of recording distance stove skin 8 is 565mm is t ˊ2, note
Record is as shown in table 1.
Table 1 installs the thermometric numerical value of thermocouple
| Insertion depth | Measurement temperature | Embodiment 1 | Comparative example 1 |
| First temperature measuring point (465mm) | 174 | 177 | 157 |
| Second temperature measuring point (565mm) | 273 | 270 | 234 |
| The temperature difference | 101 | 93 | 77 |
| |(t1-t1ˊ)/t1| | —— | 1.7% | 9.8% |
| |(t2-t2ˊ)/t2| | —— | 1.1% | 14.3% |
| |1-(t2ˊ-t1ˊ)/(t2-t1)| | —— | 7.9% | 23.8% |
As shown in Table 1, embodiment 1 | (t1-t1ˊ)/t1|=1.7% ＜ 5%, | (t2-t2ˊ)/t2|=1.5% ＜ 5%,
And | 1- (t2ˊ-t1ˊ)/(t2-t1) |=7.9% ＜ 10% is accurate using the installation of TC method of embodiment 1, the installation of TC
Really, meet using standard.And comparative example 1 | (t1-t1ˊ)/t |=9.7% ＞ 5%, | (t2-t2ˊ)/t |=14.3% ＞ 5%,
And | 1- (t2ˊ-t1ˊ)/(t2-t1) |=23.8% ＞ 10%, using the installation of TC method of comparative example 1, the installation of TC is not
Accurately, do not meet using standard.Then reinstall, and repeat step 1 to step 3.
|(t1-t1ˊ)/t |=9.7% ＞ 5%, | (t2-t2ˊ)/t |=14.3% ＞ 5%, and | 1- (t2ˊ-t1ˊ)/(t2-
t1) |=13.8% ＞ 10%, the thermocouple error that comparative example 1 is installed is larger, and its reason is：Thermocouple equipment installs thermoelectricity
During even post-grouting, slurry can not effectively fill gap and the exhaust of perforate, nothing between thermocouple and carbon brick at thermocouple temperature sensitive head
Method directly contacts, and is also easy to produce vent plug, causes heat transfer not smooth；So as to cause the thermocouple after installation, temperature measurement error is larger, thus surveys
The temperature of amount also can not actual response go out cupola well, the temperature of furnace bottom carbon brick.
The present embodiment effectively prevents air gap during blast furnace installs thermocouple so that slurries are sufficient filling with, from
And effectively eliminate air gap caused by slurries filling process so that the temperature actual response of thermocouple measurement goes out cupola well carbon brick
Temperature.
In addition, existing blast furnace thermocouple mounting process, it is difficult to effective to judge whether meet mark after the installation of TC
Standard, error is larger after often resulting in the installation of TC, and staff but also do not know error be present；The blast furnace heat of the present invention
The online mounting process of galvanic couple, creative proposition by contrasting the front and rear temperature difference of temperature measuring point, two temperature measuring point temperature difference differences,
So as to judge whether the installation of TC meets working condition requirement, the qualified installation of blast furnace thermocouple is ensure that, so as to accurately and effectively
Monitor blast furnace crucibe, furnace bottom carbon brick temperature.
Embodiment 2
The substance of the present embodiment is with embodiment 1, its difference：In compacting process, slurry-supplying valve 33 is closed, is increased
Big grouting pressure reaches 0.08MPa, keeps 20min；Outer tube 4 is with being provided with the internal and external threads being engaged on pulp-inlet pipe 51, outside
Sleeve pipe 4 is connected through a screw thread with pulp-inlet pipe 51, and detects the air-tightness of outer tube 4 and pulp-inlet pipe 51.
The horizontal range of the thermometric end end face of first thermocouple 21 and the surface of stove skin 8 is 515mm, and the second thermocouple 22 is apart from stove
The horizontal range on the surface of skin 8 is 565mm；The level of the thermometric end end face of first thermocouple 21 and the thermometric end end face of the second thermocouple 22
Distance is 50mm.First temperature measuring point and the horizontal range on the surface of stove skin 8 are 515mm, and the first temperature measuring point is surveyed with the first thermocouple 21
Warm end end face is located at same vertical position, and the horizontal range on the second temperature measuring point and the surface of stove skin 8 be 565mm, the second temperature measuring point and
The thermometric end end face of second thermocouple 22 is located at same vertical position.In installation process, measurement t and t ˊ records are as shown in table 2.
Table 2 installs the thermometric numerical value of thermocouple
| Insertion depth | Measurement temperature | Embodiment 1 |
| First temperature measuring point (515mm) | 215 | 209 |
| Second temperature measuring point (565mm) | 275 | 273 |
| The temperature difference | 60 | 64 |
| |(t1-t1ˊ)/t1| | —— | 2.8% |
| |(t2-t2ˊ)/t2| | —— | 0.7% |
| |1-(t2ˊ-t1ˊ)/(t2-t1)| | —— | 6.7% |
As shown in Table 2, embodiment 1 | (t1-t1ˊ)/t1|=2.8% ＜ 5%, | (t2-t2ˊ)/t2|=0.7% ＜ 5%,
And | 1- (t2ˊ-t1ˊ)/(t2-t1) |=6.7% ＜ 10% is accurate using the installation of TC method of embodiment 2, the installation of TC
Really, meet using standard.
Embodiment 3
The substance of the present embodiment is with embodiment 1, its difference：In compacting process, slurry-supplying valve 33 is closed, is increased
Big grouting pressure reaches 0.1MPa, keeps 15min.The horizontal range of the thermometric end end face of first thermocouple 21 and the surface of stove skin 8 is
415mm, horizontal range of second thermocouple 22 apart from the surface of stove skin 8 is 565mm；The thermometric end end face of first thermocouple 21 and second
The horizontal range of the thermometric end end face of thermocouple 22 is 150mm.In installation process, the first temperature measuring point and the surface of stove skin 8 it is horizontal away from
It is located at same vertical position, the second temperature measuring point and stove skin from for 415mm, the first temperature measuring point and the thermometric end end face of the first thermocouple 21
The horizontal range on 8 surfaces is 565mm, and the second temperature measuring point and the thermometric end end face of the second thermocouple 22 are located at same vertical position.Peace
During dress, measurement t and t ˊ records are as shown in table 3.
Table 3 installs the thermometric numerical value of thermocouple
| Insertion depth | Measurement temperature | Embodiment 1 |
| First temperature measuring point (415mm) | 116 | 112 |
| Second temperature measuring point (565mm) | 272 | 269 |
| The temperature difference | 156 | 158 |
| |(t1-t1ˊ)/t1| | —— | 3.4% |
| |(t2-t2ˊ)/t2| | —— | 1.1% |
| |1-(t2ˊ-t1ˊ)/(t2-t1)| | —— | 1.3% |
As shown in Table 3, embodiment 1 | (t1-t1ˊ)/t1|=3.4% ＜ 5%, | (t2-t2ˊ)/t2|=1.1% ＜ 5%,
And | 1- (t2ˊ-t1ˊ)/(t2-t1) |=1.3% ＜ 10% is accurate using the installation of TC method of embodiment 3, the installation of TC
Really, meet using standard.
Embodiment 4
The substance of the present embodiment is with embodiment 1, its difference：As shown in fig. 6, opened up in fixed component 1
There are 3 thermocouple fixing holes, the thermometric end of the first thermocouple 21, the second thermocouple 22 and three thermocouple is consolidated installed in thermocouple
Determine in hole, and the first fixing hole 71, the second fixing hole 72, the fixing hole 74 of grout outlet fixing hole 73 and the 3rd are offered on pad 7；
First thermocouple 21, the second thermocouple 22 and three thermocouple pass through the first fixing hole 71, the second fixing hole 72 and the 3rd respectively
Fixing hole 74 is fixed.
The horizontal range of the thermometric end end face of first thermocouple 21 and the surface of stove skin 8 is 415mm, and the second thermocouple 22 is apart from stove
The horizontal range on the surface of skin 8 is 515mm, and horizontal range of the three thermocouple apart from the surface of stove skin 8 is 565mm；First thermocouple
The horizontal range of 21 thermometric end end faces and the thermometric end end face of three thermocouple 22 is 150mm.In installation process, the first temperature measuring point with
The horizontal range on the surface of stove skin 8 is 415mm, and the first temperature measuring point and the thermometric end end face of the first thermocouple 21 are located at same vertical position
Put, the second temperature measuring point and the horizontal range on the surface of stove skin 8 are 515mm, the second temperature measuring point and the thermometric end end face of the second thermocouple 22
Positioned at same vertical position；3rd temperature measuring point and the horizontal range on the surface of stove skin 8 are 565mm, the 3rd temperature measuring point and the 3rd thermoelectricity
Even thermometric end end face is located at same vertical position.In installation process, measurement t and t ˊ records are as shown in table 4.
Table 4 installs the thermometric numerical value of thermocouple
| Insertion depth | Measurement temperature | Embodiment 1 |
| First temperature measuring point (415mm) | 117 | 112 |
| Second temperature measuring point (515mm) | 214 | 213 |
| 3rd temperature measuring point (565mm) | 272 | 275 |
| |(t1-t1ˊ)/t1| | —— | 4.3% |
| |(t2-t2ˊ)/t2| | —— | 0.5% |
| |(t3-t3ˊ)/t3| | —— | 1.1% |
| |1-(t3ˊ-t1ˊ)/(t3-t1)| | —— | 5.2% |
| |1-(t3ˊ-t2ˊ)/(t3-t2)| | —— | 6.9% |
As shown in Table 4, embodiment 1 | (t1-t1ˊ)/t1 |=4.3% ＜ 5%, | (t2-t2ˊ)/t2 |=0.4% ＜
5%, | (t3-t3ˊ)/t2 |=1.1% ＜ 5%, and | 1- (t3ˊ-t1ˊ)/(t3-t1) |=5.2% ＜ 10%, | 1- (t3ˊ-t2ˊ)/
(t3-t2) |=6.9% ＜ 10%, using the installation of TC method of embodiment 4, the installation of TC is accurate, meets using standard.
Schematically the present invention and embodiments thereof are described above, this describes no restricted, institute in accompanying drawing
What is shown is also one of embodiments of the present invention, and actual structure is not limited thereto.So if common skill of this area
Art personnel are enlightened by it, without departing from the spirit of the invention, without designing and the technical scheme for creativeness
Similar frame mode and embodiment, protection scope of the present invention all should be belonged to.
Claims (9)
- A kind of 1. online erecting device of thermocouple for blast furnace temperature-measuring, it is characterised in that：Including grouting mechanism, sealing mechanism and Fixed component (1), slurry flow port is provided with grouting mechanism, the slurry flow port is used for slurries filling gap and finishes heel row Go out unnecessary slurries, described slurry flow port is located remotely from one end of sealing mechanism, and fixed component (1) both ends are respectively arranged with Coated ends and slurry output end, the coated ends of fixed component (1) are with mounting hole joining distal ends, being provided with slurry coating in coated ends (13), fixed component (1) is slurry output end away from coated ends, and slurry output end is provided with grout outlet (31), and grout outlet (31) is close to fixed The position of part (1) slurry output end is provided with the grout outlet mouth of pipe (32).
- A kind of 2. online erecting device of thermocouple for blast furnace temperature-measuring according to claim 1, it is characterised in that：Grouting Mechanism includes pulp-inlet pipe (51) and grout outlet (31), and the grout outlet mouth of pipe (32) is slurry flow port, and the grout outlet mouth of pipe (32) is set In the one end of grout outlet (31) away from sealing mechanism.
- A kind of 3. online erecting device of thermocouple for blast furnace temperature-measuring according to claim 1 or 2, it is characterised in that： Also include fixed component (1), the thermometric end of thermocouple is fixed by fixed component (1), one end of fixed component (1) and peace Bore end contact is filled, wherein：Described mounting hole is to be used for the mounting hole in stove skin (8) surface installation thermocouple；Mounting hole is Drilled by drilling machine on stove skin (8) surface, drill bit sequentially passes through stove skin (8), filler (9), cooling wall (10) and ramming Expect (11), and pierce carbon brick (12), be mounting hole after the completion of drilling, drilling end position is to install bore end.
- A kind of 4. online erecting device of thermocouple for blast furnace temperature-measuring according to claim 3, it is characterised in that：Grouting Mechanism also includes outer tube (4), slurry-inlet valve (52) and air bleeding valve (53)；Described outer tube (4) is horizontally disposed hollow pipe, and the both ends of outer tube (4) are respectively arranged with fixing end and sealing End, wherein the fixing end of outer tube (4) is fixedly connected with stove skin (8), and the one end of described outer tube (4) away from stove skin (8) is close Block, be provided with sealing mechanism on sealed end, pulp-inlet pipe (51), and pulp-inlet pipe (51) position are provided with described outer tube (4) In the top of outer tube (4), pulp-inlet pipe (51) is connected with outer tube (4), and slurries flow into outer tube (4) through pulp-inlet pipe (51), Fill the gap of mounting hole；The one end of described pulp-inlet pipe (51) away from outer tube (4) is provided with slurry-inlet valve (52), and above-mentioned enters Exhaust branch pipe is provided with pulp-inlet pipe (51) between slurry valve (52) and outer tube (4), and air bleeding valve is provided with exhaust branch pipe (53)；Grout outlet (31) is tubular structure, and grout outlet (31) is by length direction of fixed component (1) slurry output end along outer tube (4) The outside of outer tube (4) is extended to, and grout outlet (31) is fixed by sealing mechanism, grout outlet (31) is away from fixed component (1) one end is provided with slurry-supplying valve (33), and the slurries of fixed component (1) slurry output end flow into grout outlet by the grout outlet mouth of pipe (32) (31), and by slurry-supplying valve (33) discharge.
- A kind of 5. online erecting device of thermocouple for blast furnace temperature-measuring according to claim 4, it is characterised in that：Sealing Mechanism includes first flange (61), second flange (62) and pad (7), and described second flange (62) is close with outer tube (4) End-blocking is fixedly connected with, and pad (7) is provided between described second flange (62) and first flange (61).
- A kind of 6. online erecting device of thermocouple for blast furnace temperature-measuring according to claim 4, it is characterised in that：It is described Fixing hole is provided with sealing mechanism, to fixed thermocouple and grout outlet (31).
- A kind of 7. online erecting device of thermocouple for blast furnace temperature-measuring according to claim 5, it is characterised in that：It is described The circumferential edges position of first flange (61) and the circumferential edges position of second flange (62) on be uniformly provided with it is corresponding Screw fixed hole, screw is fixed by first flange (61), second flange (62) and pad (7) by screw fixed hole.
- 8. the online erecting device of a kind of thermocouple for blast furnace temperature-measuring according to claim 1-7 any one, it is special Sign is：Offer thermocouple fixing hole in described fixed component (1), the first thermocouple (21) and the second thermocouple (22) Thermometric end is arranged in thermocouple fixing hole.
- A kind of 9. online erecting device of thermocouple for blast furnace temperature-measuring according to claim 8, it is characterised in that：First Thermocouple (21) thermometric end end face is with the second thermocouple (22) thermometric end end face not on same perpendicular.
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| CN202482340U (en) * | 2012-01-09 | 2012-10-10 | 宝山钢铁股份有限公司 | Thermocouple for online installation of blast furnace |
| CN202954056U (en) * | 2012-10-19 | 2013-05-29 | 宝山钢铁股份有限公司 | Blast furnace body brick lining temperature measuring device |
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| JP3841295B2 (en) * | 2003-01-15 | 2006-11-01 | 住友金属工業株式会社 | Thermometer installation method |
| CN2786582Y (en) * | 2005-04-29 | 2006-06-07 | 宝山钢铁股份有限公司 | Device for detecting temperature |
| CN201605279U (en) * | 2010-01-13 | 2010-10-13 | 宝山钢铁股份有限公司 | Blast furnace grouting device capable of measuring temperature |
| CN202090009U (en) * | 2011-05-05 | 2011-12-28 | 武汉钢铁(集团)公司 | Thermocouple for hot blast stove |
| CN102433409A (en) * | 2011-12-08 | 2012-05-02 | 南通宝钢钢铁有限公司 | Embedding and thickness measuring method for thermocouple on erosion part of blast furnace crucible |
| CN204224628U (en) * | 2014-11-24 | 2015-03-25 | 上海宝盈工业炉窑工程有限公司 | The thermopair that a kind of blast furnace hearth is installed online |
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| CN202482340U (en) * | 2012-01-09 | 2012-10-10 | 宝山钢铁股份有限公司 | Thermocouple for online installation of blast furnace |
| CN202954056U (en) * | 2012-10-19 | 2013-05-29 | 宝山钢铁股份有限公司 | Blast furnace body brick lining temperature measuring device |
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