CN201305610Y - Repair device of pit of steel-tapping hole - Google Patents
Repair device of pit of steel-tapping hole Download PDFInfo
- Publication number
- CN201305610Y CN201305610Y CNU2008201556293U CN200820155629U CN201305610Y CN 201305610 Y CN201305610 Y CN 201305610Y CN U2008201556293 U CNU2008201556293 U CN U2008201556293U CN 200820155629 U CN200820155629 U CN 200820155629U CN 201305610 Y CN201305610 Y CN 201305610Y
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- CN
- China
- Prior art keywords
- tap hole
- right cylinder
- hole
- refractory materials
- pit
- 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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- Carbon Steel Or Casting Steel Manufacturing (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
Abstract
A repair device of a pit of a steel-tapping hole comprises a guide rod, a cylindrical sleeve, and a refractory plug, wherein, a shoulder is arranged at the head part of the guide rod; a through hole is formed in the centre of the cylindrical sleeve in the length direction; the cylindrical sleeve is sleeved on the guide rod; the outer diameter of the shoulder at the head part is larger than the inner diameter of the through hole; a through hole is formed in the centre of the refractory plug in the length direction; and the refractory plug is rigidly sleeve on the cylindrical sleeve. The steel-tapping hole repaired by the repair device of the utility model has high resistance to the erosion and the scouring of high temperature molten steel; and the repair device greatly improves the repair quality and can effectively prolongs the service life of a revolving furnace.
Description
Technical field
The utility model relates to the metallurgical production maintenance of the equipment, belongs to the device that a kind of converter taphole pit is repaired usefulness especially.
Background technology
In convertor steelmaking process, the molten iron that adds converter is through bessemerizing, reach satisfy the qualified molten steel of composition and temperature requirement after, tap in the ladle by converter taphole.Referring to Fig. 1, the refractory materials of tap hole 13 and close region bears the thermal shock that acutely the washing away of high-temperature molten steel, concussion, rapid heat cycle are caused, and working conditions is extremely harsh, and tap hole 13 and near zone are formed tangible erosion areas 14 by molten steel scouring.Particularly tap hole 13 is after using the later stage, and tap hole 13 internal orifices and near zone are formed darker pit 15 (referring to Fig. 2) by molten steel scouring.Darker pit 15 not only threatens the safe in utilization of big face refractory materials after the converter, shortened the work-ing life of tap hole 13, and converter tapping pushing off the slag effect also there is very adverse influence (when adopting the slag blocking dart pushing off the slag, because the 13 distance increases of tail rod and tap hole can not import slag blocking dart tap hole 13, and reason such as pit 15 region shapes are irregular).At present, tap hole 13 repair material commonly used are repaired pit 15 places, but the erosion of its high temperature resistance molten steel, scouring capability are not strong, and the quality of repairing is very low, can not effectively prolong the work-ing life of converter.
Lack a kind of pit that can produce at tap hole in the prior art, cooperate the tap hole repair material to do the Efficient software patching device.
Summary of the invention
The purpose of this utility model provides a kind of tap hole pit repair apparatus, and this device can improve repairing quality, strengthens the tap hole high temperature resistance molten steel erosional competency of repairing, and can avoid the generation of tap hole pit.
In order to achieve the above object, a kind of tap hole pit repair apparatus of the present utility model comprises:
One tail rod, its head is provided with a shoulder;
One right cylinder sleeve, its central authorities are provided with through hole along its length, are enclosed within outside the tail rod, and the external diameter of tail rod head shoulder is greater than the internal diameter of through hole;
One refractory materials chock plug, its central authorities are provided with through hole along its length, and rigid enclosure is connected on outside the right cylinder sleeve.
Preferably, a slide plate, its central authorities are provided with through hole, are actively socketed on outer, the refractory materials chock plug front portion of right cylinder sleeve.
Preferably, be arranged at intervals with three hoop tongues successively on the described right cylinder sleeve; Described refractory materials chock plug is fixed between two hoop tongues; Described slide plate is arranged between two hoop tongues.
Preferably, described refractory materials chock plug rear portion is a right cylinder, and the front portion is a hemisphere.
Preferably, the rear portion right cylinder outer wall of described refractory materials chock plug is provided with at least two circumferential groove.
Preferably, described sleeve front portion is a pyramid type.
Preferably, described tail rod head is conical.
The utility model compared with prior art has the following advantages and positively effect:
Erosion, the scouring capability of the tap hole high temperature resistance molten steel that the utility model is repaired are stronger, and the quality of repairing improves greatly, can effectively prolong the work-ing life of converter.
Description of drawings
Accompanying drawing described herein is used to provide further understanding of the present utility model, constitutes the application's a part, and illustrative examples of the present utility model and explanation thereof are used to explain the utility model, do not constitute improper qualification of the present utility model.
In the accompanying drawings:
Fig. 1 is the structural representation of the existing converter that is etched.
Fig. 2 is the enlarged view of Fig. 1 tap hole.
Fig. 3 is a structural representation of the present utility model.
Fig. 4 is refractory materials chock plug of the present utility model and right cylinder telescopic side-view.
Fig. 5 is a partial enlarged drawing of the present utility model.
Fig. 6 is the side-view of Fig. 5.
Fig. 7 is use principle figure of the present utility model.
Drawing reference numeral:
[1] refractory materials chock plug [2] circumferential groove [3] circumferential groove [4] right cylinder sleeve
[5] converter [6] tail rod [7] slide plate [8] hoop tongue
[9] hoop tongue [10] hoop tongue [11] through hole [12] guide rod head
[13] tap hole [14] erosion areas [15] pit [16] spray repairing machine
[17] Gunning refractory [18] scum rod pelter
Embodiment
Specifically introduce a kind of preferred embodiment of the present utility model below in conjunction with accompanying drawing 3-7.
As shown in Figure 3, guide rod head 12 is conical, and its diameter is greater than the through hole 11 of right cylinder sleeve 4 central authorities.The right cylinder sleeve 4 of socket hollow outside tail rod 6, the undersized of right cylinder sleeve 4 is in tap hole 13 (see figure 1)s.
As shown in Figure 5, the sleeve of right cylinder sleeve 4 front portion is a pyramid type, conveniently enters the depths of tap hole 13, fits with pit 15.Be arranged at intervals with three hoop tongues 8,9,10 on right cylinder sleeve 4 outer walls successively.
As shown in Figure 4, it is outer and be fixed between two hoop tongues 8,9 refractory materials chock plug 1 to be socketed in right cylinder sleeve 4.
As shown in Figure 6, slide plate 7 is socketed in outside the right cylinder sleeve 4, is limited between two hoop tongues 9,10, it can be free to slide between two hoop tongues 9,10, the high temperature resistant refractory materials of Bao Guo plasticity-can be forced out thereon, is filled in the slit of pit 15 to go.Refractory materials chock plug 1 rear portion is a right cylinder, and the front portion is a hemisphere.Rear portion right cylinder outer wall is provided with at least two circumferential groove 2,3, compares with atypic tap hole repair material, and erosion, the scouring capability of its high temperature resistance molten steel are stronger.Head adopts semisphere, and the barrel portion recessing not only helps being close to as far as possible the pit face and repairs, and the repair material that helps spraying into is more combined closely the raising repairing quality with chock plug.
As shown in Figure 7, when the pit 15 that is formed darker erosion areas 14 central authorities by molten steel scouring when tap hole 13 internal orifices and near zone needs to repair, with converter 5 steel-supplying position that fascinates, utilize scum rod pelter 18 to clamp tail rod 6, the tap hole patcher is dropped into the position (seeing Fig. 1,2) of tap hole 13.Because the guide rod head 12 of tail rod 6 is greater than through hole 11, with tap hole patcher input and after being positioned at the tap hole 13 that needs to repair, tail rod 6 is sinked in the space for collecting ashes in a stove automatically.After scum rod pelter 18 withdraws from, tap hole repair material 17 is sprayed into pit 15 zones, pit 15 is filled and led up by spray repairing machine 16.Because tap hole 13 internal orifices that are etched and near erosion areas 14 shape irregularities, in order to prevent that the repair material 17 that sprays into pit 15 zones from leaking from the slit, adopt antiseep to keep off the high temperature resistant refractory materials of parcel plasticity-on the muddy and slippery plate 7, in tap hole patcher input and be positioned in the tap hole process of need repairing, when antiseep is kept off muddy and slippery plate 7 and is slided into hoop tongue 9 by hoop tongue 10, high temperature resistant refractory materials of parcel plasticity-is forced out in the slit of filling on it, guarantees that repair material 17 fully is penetrated into pit 15 and erosion areas 14.After finishing the mending course to converter 5, refractory materials chock plug 1 combines with Gunning refractory 17, is bonded to the tap hole 13 of repairing, and other relevant assemblies to be steel material will melt away in the steel-making pyroprocess; Twice groove on the refractory materials chock plug has increased the bonding force of itself and Gunning refractory, and both can be set in together.
Should be noted that at last: above embodiment only is not intended to limit in order to the explanation the technical solution of the utility model; Although with reference to preferred embodiment the utility model is had been described in detail, those of ordinary skill in the field are to be understood that: still can make amendment or the part technical characterictic is equal to replacement embodiment of the present utility model; And not breaking away from the spirit of technical solutions of the utility model, it all should be encompassed in the middle of the technical scheme scope that the utility model asks for protection.
Claims (7)
1. tap hole pit repair apparatus is characterized in that comprising:
One tail rod (6), its head (12) is provided with a shoulder;
One right cylinder sleeve (4), its central authorities are provided with through hole (11) along its length, are enclosed within outside the tail rod (6), and the external diameter of tail rod head (12) shoulder is greater than the internal diameter of through hole (11);
One refractory materials chock plug (1), its central authorities are provided with through hole along its length, and rigid enclosure is connected on outside the right cylinder sleeve (4).
2. tap hole pit repair apparatus as claimed in claim 1 is characterized in that also comprising:
One slide plate (7), its central authorities are provided with through hole, are actively socketed on outer, refractory materials chock plug (1) front portion of right cylinder sleeve (4).
3. tap hole pit repair apparatus as claimed in claim 2 is characterized in that:
Be arranged at intervals with three hoop tongues (8,9,10) on the described right cylinder sleeve (4) successively;
Described refractory materials chock plug (1) is fixed between two hoop tongues (8,9);
Described slide plate (7) is arranged between two hoop tongues (9,10).
4. tap hole pit repair apparatus as claimed in claim 3 is characterized in that: described refractory materials chock plug (1) rear portion is a right cylinder, and the front portion is a hemisphere.
5. tap hole pit repair apparatus as claimed in claim 4 is characterized in that: the rear portion right cylinder outer wall of described refractory materials chock plug (1) is provided with at least two circumferential groove (2,3).
6. tap hole pit repair apparatus as claimed in claim 5 is characterized in that: described sleeve (4) is anterior to be pyramid type.
7. tap hole pit repair apparatus as claimed in claim 6 is characterized in that: described tail rod head (12) is for conical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201556293U CN201305610Y (en) | 2008-11-20 | 2008-11-20 | Repair device of pit of steel-tapping hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201556293U CN201305610Y (en) | 2008-11-20 | 2008-11-20 | Repair device of pit of steel-tapping hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201305610Y true CN201305610Y (en) | 2009-09-09 |
Family
ID=41098076
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201556293U Expired - Fee Related CN201305610Y (en) | 2008-11-20 | 2008-11-20 | Repair device of pit of steel-tapping hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201305610Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103591803A (en) * | 2013-10-23 | 2014-02-19 | 宜兴市龙宸炉料有限公司 | Induction furnace lining repairing structure and repairing method thereof |
| CN105779681A (en) * | 2014-12-15 | 2016-07-20 | 上海梅山钢铁股份有限公司 | Method for preventing blockage of tapping hole of new furnace campaign first furnace of converter |
-
2008
- 2008-11-20 CN CNU2008201556293U patent/CN201305610Y/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103591803A (en) * | 2013-10-23 | 2014-02-19 | 宜兴市龙宸炉料有限公司 | Induction furnace lining repairing structure and repairing method thereof |
| CN103591803B (en) * | 2013-10-23 | 2015-05-20 | 宜兴市龙宸炉料有限公司 | Induction furnace lining repairing structure and repairing method thereof |
| CN105779681A (en) * | 2014-12-15 | 2016-07-20 | 上海梅山钢铁股份有限公司 | Method for preventing blockage of tapping hole of new furnace campaign first furnace of converter |
| CN105779681B (en) * | 2014-12-15 | 2018-03-06 | 上海梅山钢铁股份有限公司 | Prevent the new stove of converter from using as a servant the method that first stove tapping hole blocks |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090909 Termination date: 20161120 |