CN203700399U - Tuyere small sleeve - Google Patents
Tuyere small sleeve Download PDFInfo
- Publication number
- CN203700399U CN203700399U CN201420001541.1U CN201420001541U CN203700399U CN 203700399 U CN203700399 U CN 203700399U CN 201420001541 U CN201420001541 U CN 201420001541U CN 203700399 U CN203700399 U CN 203700399U
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- China
- Prior art keywords
- small sleeve
- tuyere small
- holes
- refractory
- coating layer
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- Expired - Fee Related
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- Blast Furnaces (AREA)
Abstract
The utility model discloses a tuyere small sleeve. The front end surface and the front-end outer side surface of the tuyere small sleeve are provided with 80-120 holes, the diameters of the holes are 6mm, the depths of the holes are 6mm, the staggered arrangement interval between every two holes is 10-20mm, and melting loss resistant material columns fixed by heat resistant glue are adopted in the holes and form a rivet type coating layer at the front end of the tuyere small sleeve. The tuyere small sleeve has the advantages that a protective layer is formed at the front end of the tuyere small sleeve so as to effectively resist the corrosion of high-temperature iron slag, the service life of the tuyere small sleeve is prolonged, and blast furnace accidents are prevented from occurring.
Description
Technical field
The utility model belongs to technical field of smelting, and particularly, the utility model relates to a kind of tuyere small sleeve.
Background technology
Blast furnace tuyere small sleeve is the important blowing device of blast furnace, and the material of traditional tuyere small sleeve is more than 95% red copper, has cavity structure, inner logical water coolant.Tuyere small sleeve directly stretches into high furnace interior, its front end is coal gas of high temperature, liquid high temperature sludge iron more inwards, under the working order of the normal working of a furnace, tuyere small sleeve can directly not contact high temperature sludge iron, its damage is mainly the wearing and tearing of fatigue cracking and injection material, and the work-ing life of tuyere small sleeve is more than 6 months at present.Blast furnace is produced because material condition changes or other reasons; the working of a furnace may fluctuate; slag iron will directly touch tuyere small sleeve; and because the material of tuyere small sleeve is mainly copper; the fusing point of copper material is lower; 1000 DEG C of left and right; and the temperature of the interior slag iron of stove is 1500 DEG C of left and right; if high temperature sludge iron directly contacts tuyere small sleeve; will cause tuyere small sleeve corrode, affect tuyere small sleeve work-ing life, even cause the working of a furnace further to worsen or cause the accidents such as stove is cool; the tuyere small sleeve of must taking measures to protect, opposing slag iron melting loss.
Utility model content
The purpose of this utility model is, a kind of tuyere small sleeve is provided, and this tuyere small sleeve forms protective layer at front end, effectively resists the corrode of high temperature sludge iron, extends the tuyere small sleeve life-span, prevents blast furnace accident.
For achieving the above object, the utility model has adopted following technical scheme:
A kind of tuyere small sleeve, the front end of described tuyere small sleeve 1 arranges rivet type refractory and damages material coating layer, brushing one deck heat-resistant adhesive on the surface of described coating layer.
Preferably, described rivet type refractory damages material coating layer: at tuyere small sleeve front end face and front end outer side place, 80-120 hole is set, bore dia 6mm, degree of depth 6mm, the staggered spacing in hole is 10-20mm, in hole, adopt the fixing refractory of heat-resistant adhesive to damage column of material 2, described refractory damages column of material and damages material coating layer at rivet type refractory of tuyere small sleeve front end formation.Further preferably, the number in hole is 100, and the staggered spacing in hole is 15mm.
Preferably, it is pottery that described refractory damages material, and those skilled in the art also can select other refractories to damage material as required.
The utility model, according to using producer to require processing tuyere small sleeve, adopts special process to fire the ceramics pole of diameter 6mm, length 6.5mm.The processing parameter of described ceramics pole is: density 3.21g/cm
3, folding strength 260 (20 DEG C) Mpa or 300(1300 DEG C) Mpa, 9.0 ° of Mohs' hardness, compressive strength 5000Mpa, 2800 DEG C of fusing points, microhardness 50000Mpa.
The utility model is measured the part stretching in stove according to different air ports, outside the front end face of tuyere small sleeve and front end about hole 80-120 of the about 15-20mm of the staggered brill spacing in side plane place, diameter 6mm, degree of depth 6mm, heat afterwards 400 DEG C and hole heat is risen ceramics pole is placed on to slow cooling behind inside, hole, ceramics pole is fastened in hole, and finally on ceramics pole surface, brushing one deck heat-resistant adhesive prevents from breaking up in the time of carrying.
Advantage of the present utility model is; utilize high temperature resistant, the corrosion resistant characteristic of ceramic material; tuyere small sleeve front end is stretched into a furnace interior point outside to be coated; under the normal production status of blast furnace; ceramic material resistance to erosion also can the proper extension life-span, and when blast furnace fluctuation, ceramic material can form protective layer; effectively the corrode of opposing high temperature sludge iron, prevents that conditions of blast furnace from having an accident.
The utility model belongs to the combination of non-ferrous metal and ceramic material, and existing maturation process at present can be directly coated, easy, reliable in finished product tuyere small sleeve outside.
Brief description of the drawings
Fig. 1 is the sectional view of the utility model tuyere small sleeve;
Fig. 2 is the right view of Fig. 1;
Reference numeral: 1, little cover; 2, refractory damages column of material.
Embodiment
With the drawings and specific embodiments, the utility model is described in further detail below.
As depicted in figs. 1 and 2, a kind of tuyere small sleeve, the front end face of described tuyere small sleeve 1 and front end outer side place arrange 100 holes, bore dia 6mm, degree of depth 6mm, the staggered spacing in hole is 15mm, in hole, adopt the fixing refractory of heat-resistant adhesive to damage column of material 2, described refractory damages column of material and forms a rivet type coating layer, brushing one deck heat-resistant adhesive on the surface of described coating layer at tuyere small sleeve front end.
It is pottery that described refractory damages material.
Application case: Jiuquan Iron And Steel Co., Ltd blast furnace is because material condition fluctuation, conditions of blast furnace has some setbacks, air port melting loss is more, life cycle is no more than ten days, adopt this law to be coated tuyere small sleeve front end, effectively solve the problem of tuyere small sleeve melting loss, accelerated the recovering process of conditions of blast furnace, effectively reduced cost of equipment.
It should be noted last that, above embodiment is only unrestricted in order to the technical solution of the utility model to be described.Although the utility model is had been described in detail with reference to embodiment, will be understood by those skilled in the art that, the technical solution of the utility model is modified or is equal to replacement, do not depart from the spirit and scope of technical solutions of the utility model, it all should be encompassed in the middle of claim scope of the present utility model.
Claims (3)
1. a tuyere small sleeve, is characterized in that, the front end of described tuyere small sleeve (1) arranges rivet type refractory and damages material coating layer, brushing one deck heat-resistant adhesive on the surface of described coating layer.
2. tuyere small sleeve according to claim 1, it is characterized in that, described rivet type refractory damages material coating layer: at tuyere small sleeve front end face and front end outer side place, 80-120 hole is set, bore dia 6mm, degree of depth 6mm, the staggered spacing in hole is 10-20mm, in hole, adopt the fixing refractory of heat-resistant adhesive to damage column of material (2), described refractory damages column of material and damages material coating layer at rivet type refractory of tuyere small sleeve front end formation.
3. tuyere small sleeve according to claim 1 and 2, is characterized in that, it is pottery that described refractory damages material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420001541.1U CN203700399U (en) | 2014-01-02 | 2014-01-02 | Tuyere small sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420001541.1U CN203700399U (en) | 2014-01-02 | 2014-01-02 | Tuyere small sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203700399U true CN203700399U (en) | 2014-07-09 |
Family
ID=51050863
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420001541.1U Expired - Fee Related CN203700399U (en) | 2014-01-02 | 2014-01-02 | Tuyere small sleeve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203700399U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104774987A (en) * | 2015-04-23 | 2015-07-15 | 中冶京诚工程技术有限公司 | Tuyere small sleeve |
-
2014
- 2014-01-02 CN CN201420001541.1U patent/CN203700399U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104774987A (en) * | 2015-04-23 | 2015-07-15 | 中冶京诚工程技术有限公司 | Tuyere small sleeve |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140709 Termination date: 20160102 |
|
| EXPY | Termination of patent right or utility model |