CN206244823U - A kind of sealing device for connecting tuyere medium jacket of blast furnace and blast furnace tuyere small sleeve - Google Patents
A kind of sealing device for connecting tuyere medium jacket of blast furnace and blast furnace tuyere small sleeve Download PDFInfo
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- CN206244823U CN206244823U CN201621208751.3U CN201621208751U CN206244823U CN 206244823 U CN206244823 U CN 206244823U CN 201621208751 U CN201621208751 U CN 201621208751U CN 206244823 U CN206244823 U CN 206244823U
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- blast furnace
- tuyere
- sleeve
- copper sheet
- small sleeve
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Abstract
The utility model discloses a kind of sealing device for connecting tuyere medium jacket of blast furnace and blast furnace tuyere small sleeve, the copper sheet for being sealed into tapered sleeve shape, the taper of the tapered sleeve shape copper sheet is identical with the taper of blast furnace tuyere small sleeve, the base diameter of the copper sheet is identical with the bottom external diameter of blast furnace tuyere small sleeve, and the length of the copper sheet side is identical with the length of tuyere medium jacket of blast furnace and small set connection contact surface；The copper sheet is nested in when between tuyere medium jacket of blast furnace and blast furnace tuyere small sleeve, and the copper sheet is placed on the rear end connection of the blast furnace tuyere small sleeve, and the rear blast furnace tuyere small sleeve and the tuyere medium sleeve are connected.The material that the utility model connects the sealing device of tuyere medium jacket of blast furnace and small set is fine copper, because fine copper ductility is good, there is good deformation performance, can more smoothly block gap, can play good sealing effectiveness.
Description
Technical field
The utility model belongs to the HTHP field of sealing technology in Ferrous Metallurgy technology, and in particular to one kind connection blast furnace wind
The sealing device of set and blast furnace tuyere small sleeve in mouthful.
Background technology
Blast furnace is a closed high temperature high pressure device, and air-supply arrangement is by the tuyere case on furnace shell to drum in stove
Enter hot blast.Tuyere case generally comprises big set, middle set and small set, wherein big set is cast iron quality, middle set and small set are cast iron or casting
Copper material, and cone is, the front end of tuyere big sleeve is inserted in the rear end of tuyere medium sleeve during installation, the rear end of tuyere small sleeve is inserted in
The front end of tuyere medium sleeve, and held out against using equipment such as jack, it is a kind of cone hard connecting mode.
In blast furnace production process, due to the effect of HTHP, the blast furnace expanded by heating of resistance to material can extrude air port, easily cause wind
The deformation of muzzle.Tuyere small sleeve near inside blast furnace, dislike very much by the slag iron stream and Gas Flow of directly contact high temperature, use environment
Bad, the service life of tuyere small sleeve is generally 6-12 month, so the replacing of tuyere small sleeve is very frequent, frequently changes small set
The connecting portion of tuyere medium sleeve and small set is set abrasion easily occur.The deformation and abrasion of tuyere case cause the company of tuyere medium sleeve and small set
Easily there is gap in the place of connecing, and the leakage of blast furnace gas derives from this gap mostly.
Chinese utility model CN205368410U discloses small set in a kind of high intensity anti-deformation blast-furnace tuyere, including air port
Small set and the tuyere medium sleeve being enclosed within tuyere small sleeve, before tuyere medium sleeve two ends are respectively provided with tuyere medium sleeve rear end face and tuyere medium sleeve
End face, circumferentially arranged several first floors on tuyere medium sleeve inwall, the first floor two ends respectively with tuyere medium sleeve rear end face and
Tuyere medium sleeve front end face is connected, and several first floor breach and the first floor through hole, tuyere small sleeve two ends are opened up on the first floor
Tuyere small sleeve rear end face and toroidal membrane are respectively provided with, circumferentially arranged several second floors, the second rib on tuyere small sleeve inwall
Plate two ends are connected with tuyere small sleeve rear end face and toroidal membrane respectively.The utility model is by small in tuyere medium jacket of blast furnace and air port
Floor is set in the cooling water cavity of set, the self-strength and support strength of tuyere medium sleeve and tuyere small sleeve is improved, in raising air port
The resistance to compression of set and tuyere small sleeve and anti-deformation ability, but it can not fundamentally solve or avoid corresponding sealing as far as possible
Sex chromosome mosaicism.
Utility model content
To solve the gap problem of tuyere medium sleeve and small set junction, the utility model provides a kind of connection blast-furnace tuyere
The sealing device of middle set and small set, the equipment ductility is good, there is good deformation performance, can more smoothly block gap, can rise
To good sealing effectiveness.
A kind of connection tuyere medium jacket of blast furnace and the sealing device of small set that the utility model is provided are the copper sheet of tapered sleeve shape, institute
The taper for stating tapered sleeve shape copper sheet is identical with the taper of blast furnace tuyere small sleeve, base diameter and the blast furnace tuyere small sleeve of the copper sheet
Bottom external diameter is identical, and the length of the copper sheet side is identical with the length of tuyere medium jacket of blast furnace and small set connection contact surface；The copper
Piece is nested in when between tuyere medium jacket of blast furnace and blast furnace tuyere small sleeve, and the rear end that the copper sheet is placed on the blast furnace tuyere small sleeve connects
Connect, the rear blast furnace tuyere small sleeve and the tuyere medium sleeve are connected.
Preferably, the thickness of the copper sheet is 0.3mm-3mm.
Preferably, the basal diameter of the tapered sleeve shape copper sheet is 200-500mm, and the length of tapered sleeve shape copper sheet side is 40-
80mm。
Preferably, the material of the tapered sleeve shape copper sheet is that hardness is less than tuyere small sleeve material hardness and tuyere medium sleeve material hardness
Fine copper.
A kind of application method of the sealing device for connecting tuyere medium jacket of blast furnace and small set is：
When changing tuyere small sleeve, the copper sheet of the tapered sleeve shape is enclosed within the rear end of tuyere small sleeve, then by after tuyere small sleeve
The front end of tuyere medium sleeve is inserted at end, and then the equipment such as jack holds out against, during holding out against, because the hardness of the copper sheet is less than air port
The hardness of small set and tuyere medium sleeve, truncated cone-shaped copper sheet can extend denaturation, and generation metal flow, fine copper flows to irregular gap
In, play sealing function.
The utility model has following beneficial effect：
1st, the utility model is fine copper using the material of packing ring, because fine copper ductility is good, there is good deformation performance, energy
Gap is more smoothly blocked, good sealing effectiveness can be played.
2nd, during holding out against tuyere small sleeve using equipment such as jack, tapered sleeve shape copper sheet gross area covering tuyere medium sleeve and
The connection contact surface of small set, can exhaustively block the gap of contact surface, good sealing effect.
3rd, during holding out against tuyere small sleeve using equipment such as jack, tapered sleeve shape copper sheet is primary deformable medium, middle set and
Small set deformation is smaller, weares and teares also just smaller, the service life of set and small set in improving.
4th, using the tapered sleeve shape copper sheet of fine copper matter as packing ring, the cost of material is low, does not increase production cost substantially, and by
In its good caulking joint gap performance, the seal defect of defective middle set can be made up, service life on the line covered in raising.
Brief description of the drawings
The side view of Fig. 1, tapered sleeve shape copper sheet；
The top view of Fig. 2, tapered sleeve shape copper sheet；
The schematic three dimensional views of Fig. 3, tapered sleeve shape copper sheet；
The connection water-tight equipment of Fig. 4, tuyere medium jacket of blast furnace and small set uses process schematic.
Accompanying drawing is identified：
1st, tuyere medium jacket of blast furnace；2nd, copper sheet；3rd, blast furnace tuyere small sleeve.
Specific embodiment
Face is described further to the utility model in conjunction with the drawings and the specific embodiments.
Embodiment 1：
A processing tapered sleeve shape copper sheet as Figure 1-3, as the connection of tuyere medium jacket of blast furnace and blast furnace tuyere small sleeve
Water-tight equipment, copper sheet material is fine copper, and the taper of copper sheet is identical with the taper of blast furnace tuyere small sleeve, and the hardness of copper sheet is less than blast furnace
The hardness of tuyere small sleeve and tuyere medium jacket of blast furnace, the basal diameter of tapered sleeve shape copper sheet is 350mm, the external diameter with blast furnace tuyere small sleeve
Identical, the length of tapered sleeve shape copper sheet side is 60mm, with the length that tuyere medium jacket of blast furnace and blast furnace tuyere small sleeve are connected contact surface
Identical, the thickness of tapered sleeve shape copper sheet is 0.3mm, when changing blast furnace tuyere small sleeve for the first time, using the tapered sleeve shape copper sheet as packing ring
The rear end of blast furnace tuyere small sleeve is enclosed within, then the rear end of blast furnace tuyere small sleeve is inserted in the front end of tuyere medium jacket of blast furnace, such as Fig. 4 institutes
Show, held out against small set using jack, during holding out against, because the hardness of the copper sheet is less than blast furnace tuyere small sleeve and blast-furnace tuyere
The hardness of middle set, tapered sleeve shape copper sheet can extend denaturation, produce metal flow, and fine copper is flowed in irregular gap, play good
Sealing function, with the unused tuyere medium jacket of blast furnace and blast furnace tuyere small sleeve connection water-tight equipment in the case of compared with, blast furnace
Gas leak amount reduces 30%.
Embodiment 2：
A processing tapered sleeve shape copper sheet as Figure 1-3, as the connection of tuyere medium jacket of blast furnace and blast furnace tuyere small sleeve
Water-tight equipment, copper sheet material is fine copper, and the taper of copper sheet is identical with the taper of blast furnace tuyere small sleeve, and the hardness of copper sheet is less than blast furnace
The hardness of tuyere small sleeve and tuyere medium jacket of blast furnace, the basal diameter of tapered sleeve shape copper sheet is 350mm, the external diameter with blast furnace tuyere small sleeve
Identical, the length of tapered sleeve shape copper sheet side is 60mm, with the length that tuyere medium jacket of blast furnace and blast furnace tuyere small sleeve are connected contact surface
Identical, the thickness of tapered sleeve shape copper sheet is 1mm, during the 4th replacing blast furnace tuyere small sleeve, using the tapered sleeve shape copper sheet as gasket sleeve
In the rear end of blast furnace tuyere small sleeve, then the rear end of blast furnace tuyere small sleeve is inserted in the front end of tuyere medium sleeve, as shown in figure 4, making
Small set is held out against with jack, during holding out against, because the hardness of the copper sheet is less than blast furnace tuyere small sleeve and tuyere medium jacket of blast furnace
Hardness, tapered sleeve shape copper sheet can extend denaturation, produce metal flow, and fine copper is flowed in irregular gap, play good close
Envelope is acted on, and compared with the case of the unused tuyere medium jacket of blast furnace and small set connection water-tight equipment, blast furnace gas leakage rate subtracts
Few 40%.
Embodiment 3
A processing tapered sleeve shape copper sheet as Figure 1-3, as tuyere medium jacket of blast furnace and the connection water-tight equipment of small set,
Copper sheet material is fine copper, and the basal diameter of tapered sleeve shape copper sheet is 350mm, and the external diameter with blast furnace tuyere small sleeve is identical, tapered sleeve shape copper
The length of piece side is 60mm, and the length with tuyere medium jacket of blast furnace and blast-furnace tuyere connection contact surface is identical, tapered sleeve shape copper sheet
Thickness is 3mm, when changing small set the 8th time, using the tapered sleeve shape copper sheet as gasket sleeve in the rear end of blast furnace tuyere small sleeve, then
The rear end of tuyere small sleeve is inserted in the front end of tuyere medium jacket of blast furnace, as shown in figure 4, being held out against small set using jack, was held out against
Cheng Zhong, due to the hardness of the hardness less than blast furnace tuyere small sleeve and tuyere medium jacket of blast furnace of the copper sheet, tapered sleeve shape copper sheet can extend change
Property, metal flow is produced, fine copper is flowed in irregular gap, good sealing function is played, with the unused blast-furnace tuyere
Middle to cover and compared in the case of the connection water-tight equipment of blast furnace tuyere small sleeve, blast furnace gas leakage rate reduces 35%.
Claims (4)
1. a kind of sealing device for connecting tuyere medium jacket of blast furnace and blast furnace tuyere small sleeve, the sealing device is tapered sleeve shape copper sheet,
It is characterized in that：The taper of the tapered sleeve shape copper sheet is identical with the taper of blast furnace tuyere small sleeve, the base diameter of the copper sheet with
The bottom external diameter of blast furnace tuyere small sleeve is identical, and the length of the copper sheet side is connected the length of contact surface with tuyere medium jacket of blast furnace and small set
Degree is identical；The copper sheet is nested in when between tuyere medium jacket of blast furnace and blast furnace tuyere small sleeve, and the copper sheet is placed on the blast furnace wind
The rear end connection of the small set of mouth, the rear blast furnace tuyere small sleeve and the tuyere medium sleeve are connected.
2. it is according to claim 1 connection tuyere medium jacket of blast furnace and blast furnace tuyere small sleeve sealing device, it is characterised in that
The thickness of the copper sheet is 0.3mm-3mm.
3. it is according to claim 1 connection tuyere medium jacket of blast furnace and blast furnace tuyere small sleeve sealing device, it is characterised in that
The basal diameter of the tapered sleeve shape copper sheet is 200-500mm, and the length of tapered sleeve shape copper sheet side is 40-80mm.
4. it is according to claim 1 connection tuyere medium jacket of blast furnace and blast furnace tuyere small sleeve sealing device, it is characterised in that
The material of tapered sleeve shape copper sheet is hardness less than tuyere small sleeve material hardness and the fine copper of tuyere medium sleeve material hardness.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621208751.3U CN206244823U (en) | 2016-11-09 | 2016-11-09 | A kind of sealing device for connecting tuyere medium jacket of blast furnace and blast furnace tuyere small sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621208751.3U CN206244823U (en) | 2016-11-09 | 2016-11-09 | A kind of sealing device for connecting tuyere medium jacket of blast furnace and blast furnace tuyere small sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206244823U true CN206244823U (en) | 2017-06-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621208751.3U Active CN206244823U (en) | 2016-11-09 | 2016-11-09 | A kind of sealing device for connecting tuyere medium jacket of blast furnace and blast furnace tuyere small sleeve |
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| CN (1) | CN206244823U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108127771A (en) * | 2017-12-25 | 2018-06-08 | 攀钢集团西昌钢钒有限公司 | A kind of mold for making blast-furnace tuyere capping tools |
| CN112176141A (en) * | 2020-11-18 | 2021-01-05 | 江苏沙钢集团有限公司 | Blast furnace tuyere protection device |
-
2016
- 2016-11-09 CN CN201621208751.3U patent/CN206244823U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108127771A (en) * | 2017-12-25 | 2018-06-08 | 攀钢集团西昌钢钒有限公司 | A kind of mold for making blast-furnace tuyere capping tools |
| CN112176141A (en) * | 2020-11-18 | 2021-01-05 | 江苏沙钢集团有限公司 | Blast furnace tuyere protection device |
| CN112176141B (en) * | 2020-11-18 | 2022-05-06 | 江苏沙钢集团有限公司 | Blast furnace tuyere protection device |
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