CN208649360U - Air-supply apparatus of blast furnace expansion joint - Google Patents
Air-supply apparatus of blast furnace expansion joint Download PDFInfo
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- CN208649360U CN208649360U CN201821115646.4U CN201821115646U CN208649360U CN 208649360 U CN208649360 U CN 208649360U CN 201821115646 U CN201821115646 U CN 201821115646U CN 208649360 U CN208649360 U CN 208649360U
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Abstract
The utility model provides a kind of air-supply apparatus of blast furnace expansion joint, solves the problems, such as that local temperature is excessively high at bellows when operation；The device includes expansion joint ontology and castable inner lining body, expansion joint ontology includes bellows, ripple pipe jointing part and transition connection portion, transition connection portion is set to the lower section of bellows, the both ends of bellows are separately connected upper surface and the transition connection portion of expansion joint ontology by bellows interconnecting piece, castable inner lining body is clamped between bellows and the inner wall of expansion joint and between ripple pipe jointing part and the inner wall of expansion joint, castable is equipped between transition connection portion and the inner wall of expansion joint, the internal diameter of bellows and ripple pipe jointing part is greater than the internal diameter of transition connection portion so that castable inner lining body is equal to or more than the thickness of castable；The utility model makes the temperature of bellows lower than the other housing parts of expansion joint, can effective protection bellows, enhance its service life, prevent bellows local temperature excessively high and damage.
Description
Technical field
The utility model relates to metallurgical technology fields, more particularly, to a kind of air-supply apparatus of blast furnace expansion joint.
Background technique
During the blast furnace ironmaking of metallurgy industry, the expansion joint in air-supply apparatus of blast furnace is by hot wind stove heating
1200-1350 DEG C of hot-air is sent into the thermal compensation component of blast furnace, because air feeding technique pipeline space is restricted, while bearing to lead
The effect of pipe thermal compensation and connection sealing, therefore become hot wind air-supply key component.
The main function of air-supply apparatus of blast furnace expansion joint includes the following aspects:
1. expansion joint upper end is connect with gooseneck, lower section is connect with elbow and belly pipe, and it is supreme to form connection bustle pipe
The high-temperature hot-air of blast furnace bustle pipe is transported to blast furnace, carries out blast furnace ironmaking by the hot-air channel of furnace body；
2. the axial direction that the bustle pipe of pair blast furnace, blast-furnace body and air supply device are generated due to temperature etc. at runtime
It is compensated with composite deformations such as transverse directions.
3. heat-insulated: passing through refractory material --- castable and ceramic fibre make equipment surface temperature reach suitable as lining
Suitable temperature.
Bellows as elastomeric element is critical component, and bellows surface temperature is made every effort to lower than other shells at runtime
Position guarantees its compensation performance.Around bellows and connecting tubes position, need to consider to be arranged expansion joint and thus bring every
The protection problem (prevent ripple be straightened or column unstability) of heat problem and bellows.
Currently, there are many forms for air-supply apparatus of blast furnace expansion joint, for expansion joint and thermal insulation protection, ripple protection of pipe master
Structure is wanted to have:
One, expansion joint and thermal insulation protection
1, expansion joint uses ball face sealing, and ball face sealing structure makes the castable thickness at expansion joint thinning, although
Filling with insulation material at expansion joint, but bellows surface temperature is not less than the casing surface temperature at even higher than other positions；Together
When, since bumps sealing spherical surface mutually compresses stress, when relative displacement non-free state.
2, expansion joint uses forge piece of step type structure, while bellows and connecting tubes diameter dimension increase, castable body thickness
With other parts consistency of thickness.So that bellows surface temperature is well below other parts casing surface temperature.It is stair-stepping to stretch
Contracting seam, two heat insulators being made of castable are in free state at runtime.But the heat-barrier material filled in expansion joint exists
In the case where forming negative pressure, long-play has rarefied possibility, and hot wind enters in expansion joint, causes local temperature liter
Height is locally damaged to around bellows.
Two, the protection of bellow-type expansion mode and bellows
Existing expansion joint mostly uses universal ring structures i.e. Universal hinge expansion joint: by cardo ring deflection angle
Restriction, the deformation of bellows is limited in allowed limits.But it is lateral, axial that the structure type causes thermal walking to compensate
Displacement mutually restricts, so that the compensation ability of bellows is influenced, cannot be changed according to actual displacement and carry out specific aim
Compensation.Simultaneously because the setting of cardo ring and its connector, increases cost of manufacture and production process.
Applicants have discovered that at least there is following technical problem in the prior art: the castable of existing expansion joint pours
Process is that die sleeve is arranged on expansion joint working face inner wall, after fixing with expansion joint structure, fills in and pours in opposing cavities
Material feeding, since expansion joint structure narrow space, especially bellows position need to carry out bit shift compensation, the thickness of castable is more
It is small；Since the bellows of elastomeric element is critical component, bellows surface temperature is made every effort to lower than other shell positions at runtime,
Guarantee its compensation performance；It is excessively high that above-mentioned setting in the prior art easily leads to local temperature at bellows, bellows service life reduction.
Utility model content
The purpose of this utility model is to provide a kind of air-supply apparatus of blast furnace expansion joints, to solve to exist in the prior art
Expansion joint operation when bellows at local temperature it is excessively high, the technical issues of ripple tube lifetime lower its compensation performance of influence；This
Many technical effects elaboration as detailed below that the optimal technical scheme in many technical solutions that utility model provides can be generated.
To achieve the above object, the utility model provides following technical scheme:
A kind of air-supply apparatus of blast furnace expansion joint provided by the utility model, including expansion joint ontology and castable liner
Body, the expansion joint ontology include bellows, ripple pipe jointing part and transition connection portion, and the transition connection portion is set to described
The lower section of bellows, the upper end of the bellows connect the upper surface of the expansion joint ontology by the ripple pipe jointing part,
The lower end of the bellows connects the transition connection portion by the ripple pipe jointing part, and the castable inner lining body is clamped
Between the bellows and expansion joint inner wall and between the ripple pipe jointing part and expansion joint inner wall；The transition connection
Castable is equipped between portion and the inner wall of expansion joint, the internal diameter of the bellows and the ripple pipe jointing part is all larger than the mistake
The internal diameter of interconnecting piece is crossed so that the castable inner lining body is equal to or more than the thickness of the castable.
Preferably, toroidal cavity is formed between the bellows and the castable inner lining body, is set in the toroidal cavity
There is insulation material layer.
Preferably, the insulation material layer is heat insulation felt or heat-insulation blanket.
Preferably, the castable inner lining body includes castable shell and the first castable, and the castable shell includes
Ring flat-plate, the first internal lining pipe, ring flat-plate and the second internal lining pipe are connected, the upper surface of the connection ring flat-plate is as the expansion joint ontology
Upper surface, the lower end surface of the connection ring flat-plate connect vertically disposed first internal lining pipe, the first end connection of the ring flat-plate
First internal lining pipe and to the second end for extending laterally to form the ring flat-plate at expansion joint inner wall, the second end of the ring flat-plate
Connect vertically disposed second internal lining pipe, first castable be set to the castable shell and expansion joint inner wall it
Between.
Preferably, taper connection pipe is equipped between the ripple pipe jointing part and the transition connection portion, the taper connects
The lesser one end of the internal diameter of adapter tube is connected with the transition connection portion.
Preferably, the ripple pipe jointing part includes the first ripple pipe connected pipe and the second ripple pipe connected pipe, and described the
One ripple pipe connected pipe and the second ripple pipe connected pipe clamp the bellows, and the first ripple pipe connected pipe with it is swollen
The upper surface of swollen abridged edition body connects, and the second ripple pipe connected pipe is connect with the taper connection pipe, the transition connection portion
Transitional connection pipe including being set to outside, the second ripple pipe connected pipe, the taper connection pipe are connected with the transition
The second castable is clamped between pipe and expansion joint inner wall.
Preferably, the junction of the lower end surface of first castable and the upper surface of second castable, which is provided with, stretches
Contracting is stitched, and heat insulation felt or heat-insulation blanket are equipped in the expansion joint.
Preferably, the periphery of the bellows is additionally provided with pull rod device, the pull rod device include two otic placodes, pull rod and
Locking nut, two otic placodes be separately connected the ripple pipe jointing part top and the ripple pipe jointing part lower part with
It is located at the bellows between two otic placodes, the pull rod is vertically arranged and the both ends of the pull rod pass through described in two
Otic placode, the upper surface and lower end surface of two otic placodes are equipped with the locking nut across the pull rod.
Preferably, the pull rod device further includes limiting device, and the limiting device is stop nut, the stop nut
It is fixedly installed on the both ends of the pull rod, when work, the locking nut abutted the stop nut.
Preferably, expansion joint includes expansion joint upper section and expansion joint lower section, under the expansion joint upper section and the expansion joint
Duan Jun includes the expansion joint ontology and the castable inner lining body, the transition connection portion and the expansion of the expansion joint upper section
It saves lower section to be threadedly coupled, is additionally provided with heat insulating mattress between the lower end surface of the transition connection portion and the upper surface of the expansion joint lower section
Piece and gasket seal.
Air-supply apparatus of blast furnace expansion joint provided by the utility model has the following beneficial effects: compared with prior art
Expansion joint ontology is variable-diameter structure, so that castable inner lining body is equal to or more than the thickness of the castable of expansion joint ontology, ripple
Pipe is set to the outside of castable inner lining body, when operation, by the protection of castable inner lining body, can be effectively reduced bellows and
The surface temperature at bellows connecting tube position, and the thickness of castable inner lining body is not less than the thickness of the castable of expansion joint ontology
Degree so that the temperature of bellows be lower than the other housing parts of expansion joint, can effective protection bellows, enhance its service life,
Prevent that bellows local temperature is excessively high and damages, to further increase the thermal insulation property of expansion joint.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is some embodiments of the present invention, for those of ordinary skill in the art, without creative efforts, also
Other drawings may be obtained according to these drawings without any creative labor.
Fig. 1 is the structural schematic diagram of the utility model air-supply apparatus of blast furnace expansion joint；
In figure: 1, first flange；2, ring flat-plate is connected；3, the first ripple pipe connected pipe；4, heat insulation felt；5, bellows；6,
One internal lining pipe；7, ring flat-plate；8, the second ripple pipe connected pipe；9, the second internal lining pipe；10, the first castable；11, taper connection pipe；
12, the second castable；13, transitional connection pipe；14, second flange；15, gasket seal；16, threaded connector；17, heat insulating mattress
Piece；18, toroidal cavity；19, third flange；20, gusset；21, stop nut；22, locking nut；23, the first otic placode；24, it draws
Bar；25, the second otic placode；26, ring flat-plate is positioned；27, expansion joint；28, expansion joint inner wall.
Specific embodiment
To keep the purpose of this utility model, technical solution and advantage clearer, below by the technology to the utility model
Scheme is described in detail.Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than all
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are not before making creative work
Obtained all other embodiment is put, the range that the utility model is protected is belonged to.
In the description of the present invention, it should be understood that term " center ", " length ", " width ", " height ",
The instructions such as "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside", " side "
Orientation or positional relationship is to be merely for convenience of description the utility model and letter based on attached orientation or positional relationship shown in FIG. 1
Change description, rather than the equipment of indication or suggestion meaning or element must have a particular orientation, with specific orientation construct and
Operation, therefore should not be understood as limiting the present invention.In the description of the present invention, unless otherwise indicated, " more
It is a " it is meant that two or more.
The utility model provides a kind of air-supply apparatus of blast furnace expansion joint, and referring to Fig.1, Fig. 1 is the utility model blast furnace
The structural schematic diagram of air supply device expansion joint；Including expansion joint ontology and castable inner lining body, expansion joint ontology includes ripple
Pipe 5, ripple pipe jointing part and transition connection portion, transition connection portion are set to the lower section of bellows, and the upper end of bellows 5 passes through wave
Line pipe jointing part connects the upper surface of expansion joint ontology, and the lower end of bellows 5 connects transition connection portion by ripple pipe jointing part,
Castable inner lining body be held between bellows 5 and expansion joint inner wall 28 and ripple pipe jointing part and expansion joint inner wall 28 it
Between；Castable is equipped between transition connection portion and the inner wall of expansion joint, the internal diameter of bellows 5 and ripple pipe jointing part was all larger than
The internal diameter of interconnecting piece is crossed so that castable inner lining body is equal to or more than the thickness of castable.
Expansion joint ontology is variable-diameter structure, so that castable inner lining body is equal to or more than the thickness of the castable of expansion joint ontology
Degree, bellows are set to the outside of castable inner lining body, when operation, by the protection of castable inner lining body, can be effectively reduced
The surface temperature at bellows and bellows connecting tube position, and the thickness of castable inner lining body is not less than the casting of expansion joint ontology
The thickness of material so that the temperature of bellows 5 be not higher than the other housing parts of expansion joint, can effective protection bellows, enhance it
Service life prevents 5 local temperature of bellows excessively high and damages, to further increase the thermal insulation property of expansion joint.Wherein, it pours
Material feeding is refractory material, is not specifically limited herein as setting structure conventional in expansion joint device, and ceramic fibre such as can be used
Dimension etc.；Above-mentioned bellows, ripple pipe jointing part are fixedly connected with transition connection portion, and specific set-up mode is conventional hand in the art
Section does not repeat them here, and the mode that welding such as can be used is fixed.
As optional embodiment, referring to Fig.1, toroidal cavity 18, ring are formed between bellows 5 and castable inner lining body
Insulation material layer is equipped in shape cavity 18.In order to enable the temperature at bellows 5 is lower than the temperature of the other shells of expansion joint, in addition to
Except above-mentioned variable-diameter structure, in the toroidal cavity 18 between bellows and castable inner lining body in addition insulation material layer is set,
The surface temperature of bellows 5 can be further decreased.
Wherein, insulation material layer is heat insulation felt 4 or heat-insulation blanket；Heat insulation felt 4 is between castable inner lining body and bellows 5
Details are not described herein as means conventional in expansion joint field for fixed form.
Specifically, referring to Fig.1, castable inner lining body includes castable shell and the first castable 10, castable shell packet
Connection ring flat-plate 2, the first internal lining pipe 6, ring flat-plate 7 and the second internal lining pipe 9 are included, connects the upper surface of ring flat-plate 2 as expansion joint ontology
Upper surface, the lower end surface of connection ring flat-plate 2 connect vertically disposed first internal lining pipe 6, and the first end of ring flat-plate 7 connects the first internal lining pipe
6 and to the second end for extending laterally to form ring flat-plate 7 at expansion joint inner wall, the second end connection vertically disposed second of ring flat-plate 7
Internal lining pipe 9, the first castable 10 are set between castable shell and expansion joint inner wall 28.Wherein, it is filled in castable shell
First castable, so that completely cut off between high-temperature hot-air and bellows in pipeline by the first castable and castable shell, the
One castable, castable shell are mutually cooperateed with the heat insulation felt 4 in toroidal cavity 18, form the multiple tracks protection screen of bellows 5
Barrier, further decreases the surface temperature of bellows.
In order to enable the internal diameter of transition connection portion is less than the internal diameter of bellows 5 and ripple pipe jointing part, as optional reality
Apply mode, referring to Fig.1, between ripple pipe jointing part and transition connection portion be equipped with taper connection pipe 11, taper connection pipe 11 it is interior
The lesser one end of diameter is connected with transition connection portion.
As optional embodiment, ripple pipe jointing part includes that the first ripple pipe connected pipe 3 is connected with the second bellows
Pipe 8, the first ripple pipe connected pipe 3 and the second ripple pipe connected pipe 8 clamp bellows 5, and the first ripple pipe connected pipe 3 and expansion
The upper surface of abridged edition body connects, and the second ripple pipe connected pipe 8 is connect with taper connection pipe 11, and transition connection portion includes outside being set to
The transitional connection pipe 13 of side, the second ripple pipe connected pipe 8, taper connection pipe 11 and transitional connection pipe 13 and expansion joint inner wall 28 it
Between be clamped with the second castable 12.Referring to Fig.1, the second ripple pipe connected pipe 8, taper connection pipe 11 and transitional connection pipe 13 with it is swollen
By the second castable 12 of clamping between swollen section inner wall 28, so that its device housings surface temperature is reached suitable temperature, prevent temperature
Spend height；Above-mentioned first ripple pipe connected pipe 3, the second ripple pipe connected pipe 8, taper connection pipe 11 and transitional connection pipe 13 can be equal
It is connected by the way of welding, the second castable 12 is cast in above-mentioned grasping part.
Referring to Fig.1, the lower end surface of the first castable 10 and the upper surface junction of the second castable 12 are provided with expansion joint
27, expansion joint 27 is interior to be equipped with heat insulation felt or heat-insulation blanket.Expansion joint is that the deformation-compensated of bellows provides enough spatial positions, is stretched
Heat insulation felt or heat-insulation blanket are filled in contracting seam, heat insulation felt or heat-insulation blanket have certain compressed shape variable, can guarantee bellows
It is normal flexible, and prevent part from leaking out simultaneously；Referring to Fig.1, the upper surface of the second castable is equipped with positioning ring flat-plate 26 to flexible
Heat insulation felt in seam is fixed, and the second ripple pipe connected pipe 8 for positioning ring flat-plate and side welds.
As optional embodiment, the periphery of bellows 5 is additionally provided with pull rod device, pull rod device include two otic placodes,
Pull rod 24 and locking nut 22, two otic placodes be separately connected the top of ripple pipe jointing part and the lower part of ripple pipe jointing part so that
Bellows 5 is located between two otic placodes, and pull rod 24 is vertically arranged and the both ends of pull rod 24 pass through two otic placodes, two otic placodes
Upper surface and lower end surface are equipped with the locking nut 22 across pull rod 24.
As shown in Figure 1, otic placode includes the first otic placode 23 and the second otic placode 25, below the second otic placode 25 by gusset 20 with it is swollen
It is fixed between swollen abridged edition body, the upper surface and lower end surface of the first otic placode 23 and the second otic placode 25 be all provided with there are two locking nut 22.
Preferably, pull rod device further includes limiting device, and limiting device is stop nut 21, and the fixation of stop nut 21 is set
It is placed in the both ends of pull rod 24, locking nut 22 abuts stop nut 21 when work.
Specifically, the first otic placode 23, the second otic placode 25, gusset 20 are uniformly distributed along the circumference and are welded on the shown position of shell,
Pull rod 24, locking nut 22 (unscrewing is to maximum position when equipment is run) are by being shown connected to the first otic placode 23, the second otic placode 25
Connecting hole in adjust in, stop nut 21 is screwed into the both ends of pull rod 24, by behind size adjusting position in the outside of stop nut 21
It is positioned with pull rod spot welding.At work, the locking nut of 23 upper surface of the first otic placode is screwed to the position for abutting upper end stop nut
It sets, the locking nut of 23 lower end surface of the first otic placode is placed in the medium position of pull rod 24, by the locking of 25 upper surface of the second otic placode
Nut is placed in the medium position of pull rod 24, and the locking nut of 25 lower end surface of the second otic placode is abutted to the position of lower end stop nut,
When compensating, two otic placodes of pull rod 24 are moved between locking nut 22 bellows 5 respectively, 24 two ends of pull rod
Stop nut 21 limit (position when locking nut is does not work in figure to what the length travel of bellows carried out the upper limit and lower limit
It sets).
Above-mentioned expansion joint the periphery of bellows use without constraint formula Tiebar structure: bellows in tolerance band,
Individually transverse direction, axial displacement can be compensated, be able to bear the axial tension that maximum hot-blast pressure generates, give full play to wave
The compensation ability of line pipe 5；Limit spacing is set on pull rod, limit protection is carried out to bellows.
Referring to Fig.1, expansion joint includes expansion joint upper section and expansion joint lower section, and expansion joint upper section and expansion joint lower section include
The transition connection portion of expansion joint ontology and castable inner lining body, expansion joint upper section is threadedly coupled with expansion joint lower section, transition connection
Heat insulating mattress 17 and gasket seal 15 are additionally provided between the lower end surface in portion and the upper surface of expansion joint lower section.
It using two-segment type structure, reduces the production cost, reduces production process；Temperature caused by more piece connection is reduced simultaneously
The possibility link that degree is increased or leaked out；Part connection is connected through a screw thread between expansion joint upper section and expansion joint lower section, such as Fig. 1 institute
Show, setting second flange 14 on the lower end surface of expansion joint upper section, the flange of second flange 14 and expansion joint lower section passes through screw thread and connects
Fitting connection, gasket seal 15 are set between second flange 14 and the connection ring flat-plate of expansion joint lower section, and heat insulating mattress 17 is arranged
Between the lower end surface of expansion joint upper section and the upper surface of expansion joint lower section.The material of heat insulating mattress 17 and gasket seal 15 is normal
Heat-insulated and sealed material, no longer limits herein, as heat insulation felt or heat-insulation blanket or ceramic fibre material can be used in heat insulating mattress 17
The ceramic fibre material of stainless steel cladding can be used in material, gasket seal 15.
Referring to Fig.1, the cross section of expansion joint inner wall is wide at the top and narrow at the bottom between castable inner lining body and the second castable 12
Taper, and the expansion joint inner diameter of lower end be less than upper end expansion joint inner diameter, primarily to install connection when,
It prevents from blowing on the engaging portion section of castable due to installation error hot wind, generates windage, influence the flowing of hot wind.
The lower end surface of expansion joint lower section is equipped with third flange 19 to connect with blast furnace.
In the description of this specification, specific features, structure or feature can in any one or more embodiments or
It can be combined in any suitable manner in example.
Above description is only a specific implementation of the present invention, but the protection scope of the utility model is not limited to
In this, anyone skilled in the art within the technical scope disclosed by the utility model, can readily occur in variation
Or replacement, it should be covered within the scope of the utility model.Therefore, the protection scope of the utility model should be with the power
Subject to the protection scope that benefit requires.
Claims (10)
1. a kind of air-supply apparatus of blast furnace expansion joint, which is characterized in that described swollen including expansion joint ontology and castable inner lining body
Swollen abridged edition body includes bellows, ripple pipe jointing part and transition connection portion, and the transition connection portion is set to the bellows
Lower section, the upper end of the bellows connect the upper surface of the expansion joint ontology, the ripple by the ripple pipe jointing part
The lower end of pipe connects the transition connection portion by the ripple pipe jointing part, and the castable inner lining body is held in the wave
Between line pipe and expansion joint inner wall and between the ripple pipe jointing part and expansion joint inner wall；The transition connection portion and expansion
Castable is equipped between the inner wall of section, the internal diameter of the bellows and the ripple pipe jointing part is all larger than the transition connection portion
Internal diameter so that the castable inner lining body be equal to or more than the castable thickness.
2. air-supply apparatus of blast furnace expansion joint according to claim 1, which is characterized in that the bellows and the casting
Toroidal cavity is formed between material inner lining body, is equipped with insulation material layer in the toroidal cavity.
3. air-supply apparatus of blast furnace expansion joint according to claim 2, which is characterized in that the insulation material layer is heat-insulated
Felt or heat-insulation blanket.
4. air-supply apparatus of blast furnace expansion joint according to claim 1-3, which is characterized in that in the castable
Liner body includes castable shell and the first castable, and the castable shell includes connection ring flat-plate, the first internal lining pipe, ring flat-plate and the
Two internal lining pipes, upper surface of the upper surface of the connection ring flat-plate as the expansion joint ontology, the lower end surface of the connection ring flat-plate
Connect vertically disposed first internal lining pipe, the first end of the ring flat-plate connects first internal lining pipe and to expansion joint inner wall
Place extends laterally to form the second end of the ring flat-plate, and the second end of the ring flat-plate connects vertically disposed second liner
Pipe, first castable are set between the castable shell and expansion joint inner wall.
5. air-supply apparatus of blast furnace expansion joint according to claim 4, which is characterized in that the ripple pipe jointing part and institute
It states and is equipped with taper connection pipe between transition connection portion, lesser one end of internal diameter of the taper connection pipe and the transition connection portion
It is connected.
6. air-supply apparatus of blast furnace expansion joint according to claim 5, which is characterized in that the ripple pipe jointing part includes
First ripple pipe connected pipe and the second ripple pipe connected pipe, the first ripple pipe connected pipe and the second ripple pipe connected pipe
The bellows is clamped, and the first ripple pipe connected pipe is connect with the upper surface of expansion joint ontology, second bellows
Connecting tube is connect with the taper connection pipe, the transition connection portion include be set to outside transitional connection pipe, described second
The second castable is clamped between ripple pipe connected pipe, the taper connection pipe and the transitional connection pipe and expansion joint inner wall.
7. air-supply apparatus of blast furnace expansion joint according to claim 6, which is characterized in that the lower end of first castable
The junction of face and the upper surface of second castable is provided with expansion joint, is equipped with heat insulation felt or heat-insulated in the expansion joint
Blanket.
8. air-supply apparatus of blast furnace expansion joint according to claim 1, which is characterized in that the periphery of the bellows is also set
There is pull rod device, the pull rod device includes two otic placodes, pull rod and locking nut, and two otic placodes are separately connected the wave
The top of line pipe jointing part and the lower part of the ripple pipe jointing part are so that the bellows is located between two otic placodes, institute
State that pull rod is vertically arranged and the both ends of the pull rod pass through two otic placodes, the upper surface and lower end surface of two otic placodes are equal
Equipped with the locking nut across the pull rod.
9. air-supply apparatus of blast furnace expansion joint according to claim 8, which is characterized in that the pull rod device further includes limit
Position device, the limiting device are stop nut, and the stop nut is fixedly installed on the both ends of the pull rod, when work described in
Locking nut abuts the stop nut.
10. air-supply apparatus of blast furnace expansion joint according to claim 1, which is characterized in that expansion joint includes on expansion joint
Section and expansion joint lower section, the expansion joint upper section and the expansion joint lower section include the expansion joint ontology and the castable
Inner lining body, the transition connection portion of the expansion joint upper section is threadedly coupled with the expansion joint lower section, under the transition connection portion
Heat insulating mattress and gasket seal are additionally provided between end face and the upper surface of the expansion joint lower section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821115646.4U CN208649360U (en) | 2018-07-13 | 2018-07-13 | Air-supply apparatus of blast furnace expansion joint |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821115646.4U CN208649360U (en) | 2018-07-13 | 2018-07-13 | Air-supply apparatus of blast furnace expansion joint |
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| CN208649360U true CN208649360U (en) | 2019-03-26 |
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| CN201821115646.4U Active CN208649360U (en) | 2018-07-13 | 2018-07-13 | Air-supply apparatus of blast furnace expansion joint |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110360403A (en) * | 2019-08-17 | 2019-10-22 | 江苏巨正机械有限公司 | A kind of bellows expansion joint |
| CN111594689A (en) * | 2020-06-24 | 2020-08-28 | 南京晨光东螺波纹管有限公司 | High-temperature expansion joint with novel temperature-channeling-preventing structure |
| CN116105004A (en) * | 2022-11-16 | 2023-05-12 | 南京晨光东螺波纹管有限公司 | Expansion joint cooling mode and inspection |
-
2018
- 2018-07-13 CN CN201821115646.4U patent/CN208649360U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110360403A (en) * | 2019-08-17 | 2019-10-22 | 江苏巨正机械有限公司 | A kind of bellows expansion joint |
| CN111594689A (en) * | 2020-06-24 | 2020-08-28 | 南京晨光东螺波纹管有限公司 | High-temperature expansion joint with novel temperature-channeling-preventing structure |
| CN116105004A (en) * | 2022-11-16 | 2023-05-12 | 南京晨光东螺波纹管有限公司 | Expansion joint cooling mode and inspection |
| CN116105004B (en) * | 2022-11-16 | 2024-01-30 | 南京晨光东螺波纹管有限公司 | Method for checking cooling mode of expansion joint manufacturing plant |
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