CN2174479Y - Improved monkey for steel-smelting furnace - Google Patents
Improved monkey for steel-smelting furnace Download PDFInfo
- Publication number
- CN2174479Y CN2174479Y CN 93206242 CN93206242U CN2174479Y CN 2174479 Y CN2174479 Y CN 2174479Y CN 93206242 CN93206242 CN 93206242 CN 93206242 U CN93206242 U CN 93206242U CN 2174479 Y CN2174479 Y CN 2174479Y
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- CN
- China
- Prior art keywords
- cinder notch
- cooling ribs
- slag notch
- ring cavity
- alloy
- 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.)
- Expired - Fee Related
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Abstract
The utility model relates to an improved slag notch of iron-smelting furnaces, provides products with effective surface protection, and is a key device in iron-smelting production. The main characteristics of the utility model are shown in the summary figure. The edge angle structure of the front end of an original slag notch is changed into a round angle structure < 7 >; a front end cooling rib < 9 > is additionally arranged inside an annular hollow cavity; a gap < 6 > is added in a flow guiding baffle plate < 5 > arranged at the upper part of a slag notch used at present; a square hole arranged at the front end is canceled; the working surfaces < 4 >, < 8 > of the slag notch are coated with heat resistant metal Ni, Cr, Fe, or the alloy of Ni, Cr, Fe, or the composite materials of the alloy for protection by the method of electric arc welding, etc.; with the cooling action that pure copper dissipates heat quickly, the service life of the slag notch is enhanced, and thus, the iron-smelting production is promoted.
Description
The utility model is to belong to ironmaking to produce one of important spare part that blast furnace is used to slag tap.
The cinder notch that adopts in the present blast furnace ironmaking production is the little cover of ring cavity of fine copper casting.The furnace wall cinder notch two that is contained in the blast furnace hearth top edges puts, and emits blast furnace slag from the little cover centre hole of ring cavity.Water flowing cooling in the ring cavity makes its high temperature liquid iron fusing of not taken out of by high temperature sludge liquid and damages.Though fine copper has good heat-conducting, fusing point (1083 ℃) is lower, in case touch molten iron, the possibility of being leaked by melting loss is just arranged.According to the iron work statistics, must change cinder notch one time in average five days, make the frequent checking of blast furnace, damping down to have a strong impact on smooth operation of furnace production.Again because now blast furnace partly has angle with the cinder notch bridge of the nose, the easy like this slag of being stained with when slagging tap causes localized hyperthermia to make the cinder notch melting loss and destroys.
The purpose of this utility model will solve the deficiency that above-mentioned cinder notch exists aborning exactly, has adopted three kinds of improvement projects: the one, transform cinder notch front end angle shape as the garden angular shape, and avoid local melting loss; The 2nd, in ring cavity, add cooling ribs and strengthen cooling; The 3rd, the method for narrating by arc surfacing method or back on the cinder notch working-surface is implemented the heating resisting metal protection of Ni, Cr, Fe or its alloy or its matrix material.
Concrete solution is as follows:
Change the type shape of former core and moulding in the castingprocesses of cinder notch, or change front end copper material shape in the welding manufacturing processed, the angle structural modification that makes the cinder notch front end is the garden corner structure, can avoid angle shape front end to be stained with the slag melting loss like this.
In the cinder notch ring cavity, add cooling ribs.Cooling ribs can extend to the water coolant import and export from the front end damageable zone, makes it also to play simultaneously the effect of some inducers, makes the flow of cooling water uniform distribution, strengthens the cooling effect to cinder notch integral body.
Behind the inside and outside working-surface shot-peening polishing of the cinder notch of above-mentioned manufacturing moulding (or turning), turning machined surface, boring, tapping, water pressure testing, clean its working-surface to the cleaning light with mineral acid and alkali lye.Preheating (words with good conditionsi are placed on logical protection of inert gas in the device of sealing) is to 300～400 ℃, the method for the method by arc surfacing or the method for thermospray or plasma spraying or at rare gas element (Ar, He, CO
2Or its mixed gas) method of protection arc surfacing down or methods such as electric plating method or hot dip process are being implemented heat-resisting, wear-resisting, anti-oxidant, anti-reduction, and the metal protection of the akin Ni of coefficient of thermal expansion, Cr, Fe or its alloy of copper or its compound (as topped Cr on Ni etc.) material and so on the working-surface.Passing through certain thermal treatment (according to the concrete used common employed heat treating method of protection metallic substance itself) then can use.
Through overtesting, deposited metal material protection layer combines closely with the matrix copper material.Inferior surplus chilling, the anxious thermal test 20, only see crackle slightly, the two is still firm and inseparable in any hammering.With spray way, surface stupalith or add the situation that the refractory materials overcoat comes off easily and compare, obvious advantage is arranged.
The Fig. 1 that provides is present blast furnace production with the vertical sectional elevation of cinder notch.Sequence number＜1＞be diaphragm; Sequence number＜2＞be diaphragm front end square hole; Sequence number＜3＞cinder notch front end is the angle structure.Fig. 2 is the vertical sectional elevation of blast furnace cinder notch of the present utility model (A～A among Fig. 3 is to sectional elevation).Sequence number＜4＞be the outer working-surface protective layer of Ni, Cr, Fe or its alloy or its composite; Sequence number＜5＞be top cooling ribs (the double effect of playing some inducers in the ring cavity.This cooling ribs and former cinder notch diaphragm (among Fig. 1＜1＞) structure is different: increase in the middle of it slit＜6＞, and do not have front end square hole (among Fig. 1＜2＞), reflux to reduce the water coolant short circuit.); Sequence number＜6＞be slit in the cooling ribs of ring cavity top; Sequence number＜7＞for to change former cinder notch angle structure into the garden corner structure; Sequence number＜8＞be the interior working-surface protective layer of Ni, Cr, Fe or its alloy or its composite; Sequence number＜9＞be ring cavity leading section cooling ribs (the double effect of playing some inducers); Sequence number＜10＞be machined surface; Sequence number＜11＞be sand removal technology mouth; Sequence number＜12＞enter (or going out) mouthful for water coolant.Fig. 3 is the utility model blast furnace slag oral-lateral view.Sequence number＜13＞enter (or going out) mouthful for water coolant; Sequence number＜12＞go out (or advancing) mouthful for water coolant; Sequence number＜11＞be sand removal technology mouth; Sequence number＜14＞the be centre hole of slagging tap.
Below in conjunction with drawings and Examples the utility model is described in further detail.
Fig. 1 is vertical sectional elevation of former blast furnace cinder notch:
＜1＞diaphragm;
＜2＞diaphragm front end square hole;
＜3＞front end angle structure.
Fig. 2 is the vertical sectional elevation of the utility model blast furnace cinder notch (Fig. 3 A～A is to sectional elevation):
The outer working-surface protective layer of＜4＞Ni, Cr, Fe or its alloy or its composite;
＜5＞ring cavity middle and upper part cooling ribs;
Slit in the cooling ribs of＜6＞ring cavity middle and upper part;
＜7＞to change former cinder notch angle structure be the garden corner structure;
The interior working-surface protective layer of＜8＞Ni, Cr, Fe or its alloy or its composite;
Leading section cooling ribs in＜9＞ring cavity;
＜10＞machined surface;
＜11＞sand removal technology mouth;
＜12＞water coolant advances (or going out) mouth.
Fig. 3 is the blast furnace slag oral-lateral view after improving:
＜12＞water coolant advances (or going out) mouth;
＜13＞water coolant goes out (or advancing) mouth;
＜11＞sand removal technology mouth;
＜14＞centre hole of slagging tap.
Cinder notch shown in Figure 2 is that Fig. 3 A～A is to sectional elevation.This utility model cinder notch is cast with fine copper, make its front end for garden dihedral structure＜7＞.The effect of some inducers is played in ring cavity top cooling ribs＜5＞also among the figure, but different with the structure of former cinder notch diaphragm (among Fig. 1＜1＞): increase in the middle of it slit＜6＞; And do not have front end square hole (among Fig. 1＜2＞), reflux to reduce the water coolant short circuit.Ring cavity leading section cooling ribs＜9 among the figure＞with＜5＞the same extend to water coolant advance (or going out) mouthful＜12＞(among Fig. 3＜12＞or＜13＞) locate, when making cooling ribs, also play the effect of some inducers, make the flow of cooling water uniform distribution, strengthen cooling effect cinder notch integral body.Cut away rising head after the cinder notch cast form; remove the inner chamber core sand; working-surface＜4 that shot-peening polishing (or turning) needs protection＞and＜8＞; reface machined surface＜10＞; will＜11＞,＜12＞(be among Fig. 3＜11＞,＜12＞,＜13＞; wherein＜11＞for sand removal technology mouth) boring and tapping, again will＜11＞block with plug.Water pressure testing requires 8 kilograms/cm then
2Hydraulic pressure 20 minutes is water-tight to be qualified.Again with mineral acid and alkali lye carefully clean＜4＞and＜8＞surface is to the cleaning light.With electric-arc welding or Ar arc-welding built-up welding (also can by electroplating or hot dip process or plasma spraying or thermospray) the also available Ni of heating resisting metal material C r20Ni80(, Fe, Cr or its alloy: stainless steel, knot 422 welding rods, No. 45 steel etc. or its composite material).Welding (or spraying or immersion plating) finishes the cinder notch air cooling to normal temperature, and water pressure testing is qualified once more, can connect that stove uses on the water coolant import and export pipeline.The furnace wall cinder notch of inlaying in the blast furnace hearth top edges two puts, frequently from the little cover centre hole of ring cavity＜16＞emit blast furnace slag.Cooling water pressure should keep 3～5 kilograms/cm during use
2
In view of the foregoing, the claimed right of the utility model blast furnace cinder notch is as follows:
1. the utility model cinder notch is the casting of a kind of iron-smelting blast furnace, welding manufacturing or casting, welds in conjunction with the copper cinder notch of making; be the little cover of ring cavity now with cinder notch; front end is the angle structure; the front end that is characterised in that of the present utility model is the garden corner structure; the top cooling ribs is arranged in the ring cavity; front end cooling ribs, inside and outside working-surface have heating resisting metal material protection layer.
2. feature of the present utility model be ring cavity internal upper part cooling ribs＜5＞in have a slit＜6＞.
Water coolant import and export＜12, ring cavity Inner Front End cooling ribs＜9＞extend to＞,＜13＞locate.
4. outer working-surface protective layer＜4＞material be Ni, Cr, Fe or its alloy or its matrix material.
5. interior working-surface protective layer＜8＞material be Ni, Cr, Fe or its alloy or its matrix material.
Top cooling ribs＜5＞no front end square hole＜2＞.
Claims (6)
1, a kind of iron-smelting blast furnace casting, welding are made or are cast, weld in conjunction with the copper cinder notch of making; be the little cover of ring cavity now with cinder notch; front end is the angle structure; the front end that is characterised in that of the present utility model is the garden corner structure; the top cooling ribs is arranged in the ring cavity; front end cooling ribs, inside and outside working-surface have heating resisting metal material protection layer.
2, the described cinder notch of claim 1, it is characterized in that ring cavity internal upper part cooling ribs＜5＞in have a slit＜6＞.
3, claim 1 or 2 described cinder notch, it is characterized in that water coolant import and export＜12, ring cavity Inner Front End cooling ribs＜9＞extend to＞,＜13＞locate.
4, the described cinder notch of claim 1, it is characterized in that outer working-surface protective layer＜4＞material be Ni, Cr, Fe or its alloy or its matrix material.
5, the described cinder notch of claim 1, working-surface protective layer＜8 in it is characterized in that＞material be Ni, Cr, Fe or its alloy or its matrix material.
6, the described cinder notch of claim 1, it is characterized in that top cooling ribs＜5＞no front end square hole＜2＞.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93206242 CN2174479Y (en) | 1993-03-16 | 1993-03-16 | Improved monkey for steel-smelting furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 93206242 CN2174479Y (en) | 1993-03-16 | 1993-03-16 | Improved monkey for steel-smelting furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2174479Y true CN2174479Y (en) | 1994-08-17 |
Family
ID=33789294
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93206242 Expired - Fee Related CN2174479Y (en) | 1993-03-16 | 1993-03-16 | Improved monkey for steel-smelting furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2174479Y (en) |
-
1993
- 1993-03-16 CN CN 93206242 patent/CN2174479Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |