CN210237662U - Novel blast furnace tuyere lining - Google Patents
Novel blast furnace tuyere lining Download PDFInfo
- Publication number
- CN210237662U CN210237662U CN201921034647.0U CN201921034647U CN210237662U CN 210237662 U CN210237662 U CN 210237662U CN 201921034647 U CN201921034647 U CN 201921034647U CN 210237662 U CN210237662 U CN 210237662U
- Authority
- CN
- China
- Prior art keywords
- blast furnace
- main part
- bush
- tuyere
- small sleeve
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Blast Furnaces (AREA)
Abstract
The utility model discloses a novel blast furnace tuyere bush, including tuyere small sleeve main part, the front end surface of tuyere small sleeve main part is provided with the inlet opening, and tuyere small sleeve main part surface is provided with the air intake, and air intake internally mounted has the air-supply line, the inner wall parcel of air-supply line has the bush main part, and the inside of bush main part is provided with corrosion resistant plate cladding material, the surface parcel elasticity axle sleeve of bush main part, the inlet opening is linked together through pipeline and hydroecium. The utility model discloses the bush adopts the preparation of hot rolling 304 corrosion resistant plate, and its characteristics are good, and toughness is high, high temperature resistant, and is anti-oxidant, and after the blast furnace damping down, according to the wind gap size selection bush that required dwindles, at first pull down the blast furnace wind gap blowpipe, put into the wind gap snare with the bush again and compact, then pack the wind gap blowpipe back, the blast furnace can be the production of reblowing, has avoided the inconvenience that the direct change wind gap snare brought.
Description
Technical Field
The utility model relates to the technical field of blast furnace ironmaking, in particular to a novel blast furnace tuyere lining.
Background
The blast furnace uses steel plate as furnace shell, and refractory brick lining is built in the shell. The blast furnace body is divided into a furnace throat, a furnace body, a furnace waist, a furnace belly and a furnace hearth 5 from top to bottom. Because of the advantages of good economic index, simple process, large production capacity, high labor production efficiency, low energy consumption and the like of the blast furnace ironmaking technology, the iron produced by the method accounts for the vast majority of the total iron production in the world. In the production of a blast furnace, iron ore, coke, and a flux (limestone) for slag formation are charged from the top of the furnace, and preheated air is blown through tuyeres located along the periphery of the furnace at the lower part of the furnace. Carbon in coke (some blast furnaces also blow auxiliary fuel such as coal dust, heavy oil, natural gas and the like) at high temperature is combusted with oxygen blown into air to generate carbon monoxide and hydrogen, and oxygen in iron ore is removed in the ascending process in the furnaces, so that iron is obtained by reduction. The smelted molten iron is discharged from the iron notch. Unreduced impurities in the iron ore are combined with fluxes such as limestone to generate slag, and the slag is discharged from a slag hole.
Generally, when the air inlet area of the tuyere of the blast furnace needs to be reduced, the blast furnace needs to be stopped, the whole tuyere small sleeve is disassembled, and the new small-size tuyere small sleeve is installed again, so that the whole operation time is long, and the production of the blast furnace is influenced. The new tuyere small sleeve has long period if ordered directly from the manufacturer, and the time from ordering to delivering is about 1 month. If the blast furnace tuyere small spare parts are reserved by the blast furnace tuyere small spare parts, a large amount of funds are occupied, and the cost is increased. If the area of the air opening needs to be adjusted to be small again, only the order can be continuously made or spare parts can be prepared by self.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a novel blast furnace tuyere lining to the change new tuyere small sleeve that provides in solving above-mentioned background art brings a great deal of inconvenient scheduling problem.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a novel blast furnace tuyere bush, includes tuyere small sleeve main part, the front end surface of tuyere small sleeve main part is provided with the inlet opening, and tuyere small sleeve main part surface is provided with the air intake, and air intake internally mounted has the intake stack, the inner wall parcel of intake stack has the bush main part, and the inside of bush main part is provided with corrosion resistant plate cladding material, the surface parcel of bush main part has flexible axle sleeve, the inlet opening is linked together through pipeline and hydroecium.
Preferably, the number of the water inlet holes is two, and the diameter of each water inlet hole is 50 mm.
Preferably, the thickness of the stainless steel plate coating is 7.5 mm.
Preferably, the front end of the tuyere small sleeve main body is of a cone structure.
Preferably, the front end of the bushing main body is 120.2mm in diameter, and the rear end of the bushing main body is 110mm in diameter.
Preferably, the diameter of the air inlet is 130 mm.
Compared with the prior art, the beneficial effects of the utility model are that:
(1) the tuyere lining device is made of 304 stainless steel, has high strength and convenient installation and use, has the service life of more than 1 year, is inconvenient to install and easy to damage due to the adoption of other tuyere linings made of refractory materials, has shorter service life, is formed by machining a hot-rolled stainless steel plate through a plate rolling machine, adopts a welding process, is convenient to manufacture and has low cost;
(2) after the blast furnace is shut down, the bushing is selected according to the size of the tuyere which needs to be reduced, the blast furnace tuyere blowpipe is detached firstly, then the bushing is placed into the tuyere small sleeve to be compacted, then the tuyere blowpipe is installed back, the blast furnace can be re-ventilated for production, and inconvenience caused by direct replacement of the tuyere small sleeve is avoided.
Drawings
Fig. 1 is a front view of the present invention;
fig. 2 is a cross-sectional view of the present invention;
FIG. 3 is a front view of the bushing body of the present invention;
fig. 4 is a sectional view of the bushing main body of the present invention.
In the figure: 1. a tuyere small sleeve main body; 2. a water chamber; 3. a water inlet hole; 4. an air inlet; 5. an air inlet pipeline; 6. a bushing body; 7. a stainless steel plate coating; 8. an elastic shaft sleeve.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1-4, the present invention provides an embodiment: a novel blast furnace tuyere lining comprises a tuyere small sleeve main body 1, wherein the front end of the tuyere small sleeve main body 1 is of a cone structure. The front end surface of the tuyere small sleeve main body 1 is provided with a water inlet hole 3, the surface of the tuyere small sleeve main body 1 is provided with an air inlet 4, and the diameter of the air inlet 4 is 130 mm.
4 internally mounted of air intake has intake stack 5, and intake stack 5's inner wall parcel has bush main part 6, and the inside of bush main part 6 is provided with corrosion resistant plate cladding material 7, and the surface parcel of bush main part 6 has elastic shaft sleeve 8, elastic shaft sleeve 8 convenient and 5 inner wall elastic contact of intake stack, and inlet opening 3 is linked together through pipeline and hydroecium 2, inlet opening 3 is provided with two, and the diameter of inlet opening 3 is 50 mm.
After the blast furnace is shut down, the lining main body 6 is selected according to the size of the tuyere which needs to be reduced, the blast furnace tuyere blowpipe is firstly disassembled, then the lining main body 6 is placed into the tuyere small sleeve main body 1 to be compacted, then the tuyere blowpipe is installed back, the blast furnace can be produced by re-air, and the inconvenience caused by directly replacing the tuyere small sleeve main body 1 is avoided.
The thickness of the stainless steel plate coating 7 is 7.5mm, 304 stainless steel materials are adopted, the strength is high, the installation and the use are convenient, the service life of the stainless steel plate coating is as long as more than 1 year, and other tuyere linings made of refractory materials are inconvenient to install, easy to damage and short in service life.
The front end diameter of the bushing main body 6 is 120.2mm, the rear end diameter of the bushing main body 6 is 110mm, a hot-rolled stainless steel plate is formed by machining through a plate rolling machine, a welding process is adopted, and the bushing is convenient to manufacture and low in cost.
When the utility model is used, the surface of the tuyere small sleeve main body 1 is provided with the air inlet 4, the air inlet pipeline 5 is arranged inside the air inlet 4, the inner wall of the air inlet pipeline 5 is wrapped with the lining main body 6, the inside of the lining main body 6 is provided with the stainless steel plate cladding layer 7, the thickness of the stainless steel plate cladding layer 7 is 7.5mm, 304 stainless steel materials are adopted, the strength is high, the installation and the use are convenient, the service life of the tuyere small sleeve main body is longer than 1 year, other tuyere linings adopting refractory materials for processing are inconvenient to install, easy to damage and short in service life, the hot rolling stainless steel plate is adopted to be processed and formed by a plate rolling machine, the welding process is adopted, the manufacture is convenient, the cost is low, the outer surface of the lining main body 6 is wrapped with the elastic shaft sleeve 8, the elastic shaft sleeve 8 is convenient to be in elastic contact with the inner wall of the, the lining main body 6 is placed into the tuyere small sleeve main body 1 to be compacted, then the tuyere blowpipe is installed back, the blast furnace can carry out re-air production, and inconvenience caused by direct replacement of the tuyere small sleeve main body 1 is avoided.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Claims (6)
1. The utility model provides a novel blast furnace tuyere lining, includes tuyere small sleeve main part (1), its characterized in that, the front end surface of tuyere small sleeve main part (1) is provided with inlet opening (3), and tuyere small sleeve main part (1) surface is provided with air intake (4), and air intake (4) internally mounted has intake stack (5), the inner wall parcel of intake stack (5) has bush main part (6), and the inside of bush main part (6) is provided with corrosion resistant plate cladding material (7), the surface parcel of bush main part (6) has elastic axle sleeve (8), inlet opening (3) are linked together through pipeline and hydroecium (2).
2. The novel blast furnace tuyere lining of claim 1, wherein: the number of the water inlet holes (3) is two, and the diameter of each water inlet hole (3) is 50 mm.
3. The novel blast furnace tuyere lining of claim 1, wherein: the thickness of the stainless steel plate plating layer (7) is 7.5 mm.
4. The novel blast furnace tuyere lining of claim 1, wherein: the front end of the tuyere small sleeve main body (1) is of a cone structure.
5. The novel blast furnace tuyere lining of claim 1, wherein: the front end diameter of the bushing main body (6) is 120.2mm, and the rear end diameter of the bushing main body (6) is 110 mm.
6. The novel blast furnace tuyere lining of claim 1, wherein: the diameter of the air inlet (4) is 130 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921034647.0U CN210237662U (en) | 2019-07-04 | 2019-07-04 | Novel blast furnace tuyere lining |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921034647.0U CN210237662U (en) | 2019-07-04 | 2019-07-04 | Novel blast furnace tuyere lining |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210237662U true CN210237662U (en) | 2020-04-03 |
Family
ID=69989650
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921034647.0U Active CN210237662U (en) | 2019-07-04 | 2019-07-04 | Novel blast furnace tuyere lining |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210237662U (en) |
-
2019
- 2019-07-04 CN CN201921034647.0U patent/CN210237662U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100519768C (en) | Shaft furnace for production of ferrochromium and smelting method thereof | |
| CN101831517B (en) | Blast furnace coal gasification air heating furnace smelting method | |
| CN107299182B (en) | A kind of method that converter utilizes scrap smelting half steel | |
| CN107419051B (en) | Promote the smelting process of converter scrap melting using gasification dephosphorized slag | |
| CN101270873B (en) | Method and device for blowing breeze to pure oxygen smelting mobile filling bed smelting furnace | |
| CN108707714A (en) | A kind of steel scrap and iron content solid waste multi-functional melt furnace | |
| WO2019201182A1 (en) | Cupola furnace employing plasma to perform melting process, and iron melting method thereof | |
| CN210237662U (en) | Novel blast furnace tuyere lining | |
| CN101029794A (en) | Electric arc furnace | |
| CN102010918A (en) | Environmental-friendly energy-saving blast-furnace oxygen ironmaking method | |
| CN202465741U (en) | Low-carbon energy-saving blast furnace | |
| CN108842016A (en) | Improve the method that schreyerite smelts productivity | |
| CN204251632U (en) | A kind of blast furnace cooling apparatus | |
| CN201463594U (en) | Combined spray gun used for iron making by smelting reduction | |
| CN201974040U (en) | Fuming furnace used for recovering tin copper waste residues | |
| CN201217665Y (en) | Novel furnace cupola system for melting carbonaceous ball of iron oxide | |
| US20110036203A1 (en) | Method of Iron Smelting in Blast Furnace with High Temperature Coal Gas | |
| CN204714837U (en) | A kind of monoblock casting blast furnace tuyere small sleeve of high-wearing feature | |
| CN216712142U (en) | Mechanical type blast furnace stock rod matched with iron-making blast furnace | |
| CN208733152U (en) | A kind of steel scrap and iron content solid waste multi-functional melt furnace | |
| CN207267883U (en) | A kind of clean energy-saving type steelmaking furnace | |
| CN1211495C (en) | Method for smelting chromium-contg. melted iron with powder ore cooled agglomerated pellet | |
| CN214142420U (en) | Heat-resistant lining plate for fixed receiving hopper of blast furnace | |
| Zhou et al. | Development of Smelting Reduction Ironmaking Process | |
| CN2844127Y (en) | Composite air port of blast-furnace |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |