CN2518868Y - Quick-changing combined central throat tube - Google Patents
Quick-changing combined central throat tube Download PDFInfo
- Publication number
- CN2518868Y CN2518868Y CN01206341U CN01206341U CN2518868Y CN 2518868 Y CN2518868 Y CN 2518868Y CN 01206341 U CN01206341 U CN 01206341U CN 01206341 U CN01206341 U CN 01206341U CN 2518868 Y CN2518868 Y CN 2518868Y
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- CN
- China
- Prior art keywords
- wearing liner
- layer
- durable
- section
- abrading
- 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 a quick-changing combined central throat tube which comprises a body, an abrading durable bush and a hard alloy paler. The abrading durable bush consists of an inner layer, an outer layer and a soaking carbonize tungsten abrading durable layer. The utility model has the advantages that: the abrading durable layer has the self-centering structure and is a sectional subsection type; the utility model can realize the quick changing; the carbonize tungsten has good durable capacity, high life of the abrading durable bush and low using cost.
Description
The utility model belongs to metallurgy high furnace furnace roof equipment technical field, particularly a kind of combination fast replacing type center trunnion.
When blast furnace employing and jar form furnace roof, the center trunnion does not overlap with center trunnion medullary ray because of the batch can medullary ray, and furnace charge washes away the left and right sides, trunnion top, center during blanking, and the center trunnion is because of excessive the scrapping of the left and right sides, top wearing and tearing, and the center trunnion life-span is low.Existing center trunnion has inside to carry out the center trunnion of pile-up welding hard alloy or spraying abrasion-proof alloy, anti-wearing liner built-up type center trunnion, and there are the following problems during this two classes center trunnion used:
1, the center trunnion has inside to carry out pile-up welding hard alloy or the spraying abrasion-proof alloy improves the center trunnion life-span, when the wear resistant alloy of the Wimet of built-up welding or spraying has worn and torn, needs the blast furnace staying repair welding, and the damping down time is long, influences furnace processor; Or when the wear resistant alloy of the Wimet of built-up welding or spraying has worn and torn, the center trunnion is changed, the replacing time is long, and the standby center trunnion of need, the cost height;
2, anti-wearing liner built-up type center trunnion, lining is the cylindrical structural that rich chromium cast iron or other high-abrasive material are made, lining hardness height, difficult processing, sleeve outer surface is difficult to form good combination with center trunnion internal surface, and the lining replacing time is long, influences furnace processor, lining is a column structure, and it is inhomogeneous to wear and tear.
The purpose of this utility model is, at the problems referred to above, provides a kind of combination fast replacing type center trunnion, and this center trunnion is changed fast, high-abrasive material utilization ratio height, and use cost is low.
For achieving the above object, the utility model adopts following technical solution:
Combination fast replacing type center trunnion, comprise the hard alloy layer of intersegmental part built-up welding under body, anti-wearing liner and the body or the wear-resistant alloy layer of spraying, described anti-wearing liner is I, II section, form by internal layer, skin and infiltration carbine abrasion-proof layer, and I section anti-wearing liner is assemblied in upper part of body, and II section anti-wearing liner is assemblied in the middle part of body.
Further be that the infiltration carbine abrasion-proof layer of I section anti-wearing liner is not for waiting wall thickness.
Further be that upper part of body internal surface and I, the outer outside surface of II section anti-wearing liner are cone surface.
Make up fast switching center9 trunnion following advantage arranged:
1, because center trunnion upper part of body internal surface and I, the outer outside surface of II section anti-wearing liner are cone surface, have Self-centering Action, anti-wearing liner is changed easily, and the replacing time is short;
2, the infiltration carbine abrasion-proof layer of I section anti-wearing liner is the thickest for not waiting wall thickness, materials flow to wash away serious place wall thickness, washes away down in materials flow, and soaking into the carbine abrasion-proof layer up and down can wear and tear synchronously, improves the utilization ratio of tungsten carbide material;
3, after soaking into the carbine abrasion-proof layer and wear and tear, I, II section anti-wearing liner rotated to an angle can continue use, further improve the utilization ratio of tungsten carbide material;
4, general high-abrasive material wear resistance such as the wear resistance higher chromium cast iron of wolfram varbide is good, anti-wearing liner life-span height;
5, trunnion body in center can continue when changing to use at I, II section anti-wearing liner, and therefore, it is low to make up fast switching center9 trunnion use cost.
Accompanying drawing 1 is the structural representation of combination fast replacing type center trunnion;
Accompanying drawing 2 is the synoptic diagram of I section anti-wearing liner structure;
Accompanying drawing 3 is the synoptic diagram of II section anti-wearing liner structure.
The utility model is described in further detail below in conjunction with drawings and Examples.
Combination fast replacing type center trunnion, comprise the hard alloy layer 2 of intersegmental part built-up welding under body 1, anti-wearing liner and the body or the wear-resistant alloy layer 2 of coating, described anti-wearing liner is I, II section, the I section is made up of internal layer 4, skin 5 and infiltration carbine abrasion-proof layer 3, and I section anti-wearing liner is assemblied in the top of body 1, the II section is made up of internal layer 7, skin 6 and infiltration carbine abrasion-proof layer 8, and II section anti-wearing liner is assemblied in the middle part of body 1.
Further be that the infiltration carbine abrasion-proof layer 3 of I section anti-wearing liner is not for waiting wall thickness.
Further be that the outside surface of the upper inside surface of body 1 and I, II section anti-wearing liner skin 5,6 is a cone surface.
Claims (3)
1, combination fast replacing type center trunnion comprises the hard alloy layer of intersegmental part built-up welding under body, anti-wearing liner and the body or the wear-resistant alloy layer of spraying, it is characterized in that:
Described anti-wearing liner is I, II section, and by internal layer, skin with soak into the carbine abrasion-proof layer and form, and I section anti-wearing liner is assemblied in upper part of body, and II section anti-wearing liner is assemblied in the middle part of body.
According to the described combination fast replacing type of claim 1 center trunnion, it is characterized in that 2, the infiltration carbine abrasion-proof layer of I section anti-wearing liner is not for waiting wall thickness.
3, combination fast replacing type according to claim 1 and 2 center trunnion is characterized in that, upper part of body internal surface and I, the outer outside surface of II section anti-wearing liner are cone surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN01206341U CN2518868Y (en) | 2001-05-24 | 2001-05-24 | Quick-changing combined central throat tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN01206341U CN2518868Y (en) | 2001-05-24 | 2001-05-24 | Quick-changing combined central throat tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2518868Y true CN2518868Y (en) | 2002-10-30 |
Family
ID=33626979
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN01206341U Expired - Fee Related CN2518868Y (en) | 2001-05-24 | 2001-05-24 | Quick-changing combined central throat tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2518868Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103571987A (en) * | 2012-07-30 | 2014-02-12 | 上海宝冶集团有限公司 | Method for replacing central throat pipe at blast furnace roof |
| CN103937920A (en) * | 2014-05-06 | 2014-07-23 | 四川鸿舰重型机械制造有限责任公司 | Blast furnace center conical segment throat pipe and treating method for wear-resistant structure thereof |
| CN107058657A (en) * | 2017-06-19 | 2017-08-18 | 中冶南方工程技术有限公司 | The central throat tube and its replacing options of a kind of blast furnace roof |
| CN109576426A (en) * | 2018-12-18 | 2019-04-05 | 山东钢铁股份有限公司 | A kind of replacing options of blast furnace roof central throat tube |
-
2001
- 2001-05-24 CN CN01206341U patent/CN2518868Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103571987A (en) * | 2012-07-30 | 2014-02-12 | 上海宝冶集团有限公司 | Method for replacing central throat pipe at blast furnace roof |
| CN103937920A (en) * | 2014-05-06 | 2014-07-23 | 四川鸿舰重型机械制造有限责任公司 | Blast furnace center conical segment throat pipe and treating method for wear-resistant structure thereof |
| CN103937920B (en) * | 2014-05-06 | 2016-03-16 | 四川鸿舰重型机械制造有限责任公司 | The treatment process of blast furnace center cone section trunnion and abrasion-proof structure thereof |
| CN107058657A (en) * | 2017-06-19 | 2017-08-18 | 中冶南方工程技术有限公司 | The central throat tube and its replacing options of a kind of blast furnace roof |
| CN107058657B (en) * | 2017-06-19 | 2019-04-19 | 中冶南方工程技术有限公司 | A kind of central throat tube and its replacing options of blast furnace roof |
| CN109576426A (en) * | 2018-12-18 | 2019-04-05 | 山东钢铁股份有限公司 | A kind of replacing options of blast furnace roof central throat tube |
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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 |