CN103063012A - High-temperature wear-resistant water beam of air-guiding wall - Google Patents
High-temperature wear-resistant water beam of air-guiding wall Download PDFInfo
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- CN103063012A CN103063012A CN201310017825XA CN201310017825A CN103063012A CN 103063012 A CN103063012 A CN 103063012A CN 201310017825X A CN201310017825X A CN 201310017825XA CN 201310017825 A CN201310017825 A CN 201310017825A CN 103063012 A CN103063012 A CN 103063012A
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- water beam
- steel pipe
- water flowing
- wear
- leading wall
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 78
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 43
- 239000010959 steel Substances 0.000 claims abstract description 43
- 238000000034 method Methods 0.000 claims abstract description 9
- 239000012535 impurity Substances 0.000 claims abstract description 7
- 239000000203 mixture Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 4
- 238000009987 spinning Methods 0.000 claims description 4
- 238000009750 centrifugal casting Methods 0.000 abstract description 7
- 229910052751 metal Inorganic materials 0.000 description 8
- 239000002184 metal Substances 0.000 description 8
- 238000005266 casting Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 238000001816 cooling Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000008646 thermal stress Effects 0.000 description 3
- 238000005406 washing Methods 0.000 description 3
- 238000007664 blowing Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000004992 fission Effects 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The invention provides a high-temperature wear-resistant water beam of an air-guiding wall. The high-temperature wear-resistant water beam comprises a plurality of parallelly arranged water circulating steel tubes, and the steel tubes are manufactured via centrifugal casting method and made of superstrong heat resistant steel. The superstrong heat resistant steel comprises, by weight, 0.2-0.45% of C, 22-28% of Cr, 3.5-13% of Ni, 0.1-0.4% of Si, 0.1-0.4% of N, 0.01-3% of RE, 0.15-2.3% of Mo, 0.15-2.3% of W, 0-13% of Co, 1-13% of Mn, 0.0005-0.10% of Mg, and the balance Fe and impurities. The high-temperature wear-resistant water beam of the air-guiding wall is long in service life.
Description
Technical field
The present invention relates to be used in a kind of stove supporting the water beam of air-guiding wall.
Background technology
Water beam of wind leading wall is one of main body framework of shaft furnace inside, and chief component is many pipelines, is the important component part of shaft furnace, and its effect mainly is the weight of carrying air guide wall for vetical furnace, and the be connected as a single entity effect of wind-guiding of air-guiding wall.Working environment is comparatively abominable in the water beam of wind leading wall stove of living in, and weight that should the load-bearing air-guiding wall is born again the high temperature and high speed cooling air and is mingled with washing away of dust.The service life of water beam of wind leading wall is shorter, generally only has 3-4 month.This just causes the frequent blowing out maintenance of shaft furnace needs, causes production cost high.
Cause the main cause of water beam of wind leading wall weak point in service life as follows:
1, water beam of wind leading wall place shaft furnace position temperature is high, relies on the heat conduction of water beam pipe interior flow.Each blowing out, baker all can make water beam pipeline change between prominent cold, prominent heat.Prominent cold, the prominent heat of water beam all can produce the sudden change of thermal stress and cause the fission of water beam pipeline, reduces the life-span of water beam.
2, the wall unevenness that forms in manufacture process of water beam pipeline is even can cause water beam pipeline in use to produce thermal stress, impels water beam pipeline to crack.
3, the water beam pipeline cooling air that is subject to for a long time being mingled with dust washes away, and causes the wearing and tearing of water beam pipeline, so that the wall thickness of water beam pipeline changes, causes the uniformity of wall thickness to change, and then forms crackle.
The material of existing water beam of wind leading wall pipeline adopts A3, and heat resistance and abrasion resistance properties are lower.
Summary of the invention
The short problem in service life that exists in order to solve existing water beam of wind leading wall the invention provides a kind of water beam of wind leading wall.
Technical scheme of the present invention is as follows:
A kind of high temperature resistant, wear-resisting water beam of wind leading wall comprises the many water flowing steel pipes that are arranged side by side, and described water flowing steel pipe adopts centre spinning method to make, and the material of described water flowing steel pipe is ultra-strong refractory steel; The composition of described ultra-strong refractory steel and percentage composition weight: C are 0.2-0.45, Cr is 22-28, and Ni is 3.5-13, and Si is 0.1-0.4, N is 0.1-0.4, RE is 0.01-3, and Mo is 0.15-2.3, and W is 0.15-2.3, Co is 0-13, Mn is 1-13, and Mg is 0.0005-0.10, and surplus is Fe and impurity.
The external diameter scope of described water flowing steel pipe is 200 to 240 millimeters, and wall thickness range is 15 to 22 millimeters.
Described impurity is S and P, and the weight percent of S and P all is not higher than 0.03.
C weight percent be 0.25-0.40.
Technique effect of the present invention:
The material of the water flowing steel pipe of high temperature resistant, wear-resisting water beam of wind leading wall of the present invention has adopted the Chinese patent (patent No.: ZL200510011584.3) disclosed ultra-strong refractory steel.That this ultra-strong refractory steel has is high temperature resistant, corrosion-resistant, wear-resistant, shock resistance, welding characteristics.In water beam of wind leading wall working environment of living in, These characteristics is so that the water flowing steel pipe of water beam improves the ability of tolerance thermal stress sudden change, and the ability that has improved the wearing and tearing of opposing cooling air, the service life that can improve water beam water flowing steel pipe.Can reach 1-2 the service life of water beam of wind leading wall of the present invention.
In addition, water flowing steel pipe high temperature resistant, wear-resisting water beam of wind leading wall of the present invention adopts the centrifugal casting mode to make, the water flowing steel pipe of the water beam of wind leading wall that the centrifugal casting mode is made has following feature: molten metal is at centrifugal action lower charging type and solidifying, the metal feeding is effective, water flowing steel pipe outer tissue is fine and close, non-metallic inclusion is few, good mechanical property.The bearing plane of washing away External Force Acting that water flowing steel pipe skin is brought by cooling air just, this layer tissue is fine and close, and wear-resistant ability is strong, helps the long period to keep the wall thickness uniformity of water flowing steel pipe.In addition, the water flowing steel pipe of the water beam of wind leading wall that employing centrifugal casting mode is produced can have certain chipping allowance, so that the even possibility that becomes of the wall unevenness that utilizes degree of precision processing to avoid process to cause.
Description of drawings
Fig. 1 is the front view of high temperature resistant, wear-resisting water beam of wind leading wall of the present invention.
Fig. 2 is the top view of water beam of wind leading wall shown in Figure 1.
Fig. 3 is the cutaway view in A-A cross section among Fig. 2.
Indicate among the figure and be described as follows:
1, water flowing steel pipe.
The specific embodiment
Below in conjunction with accompanying drawing technical scheme of the present invention is elaborated.
Fig. 1 to Fig. 3 has shown the agent structure of high temperature resistant, wear-resisting water beam of wind leading wall of the present invention, wherein critical piece be water flowing steel pipe 1(be described in the background technology and water beam pipeline).Pointed such as the background technology part, the work under bad environment of water flowing steel pipe 1, this is the water flowing steel pipe short main cause in service life that causes water beam of wind leading wall in the prior art.
The ability that raising water flowing steel pipe tolerates abominable working environment is to improve the water beam of wind leading wall important means in service life.The water flowing steel pipe 1 of water beam of wind leading wall of the present invention has adopted the Chinese patent (patent No.: ZL200510011584.3) disclosed ultra-strong refractory steel.The composition of this ultra-strong refractory steel and percentage composition weight: C are 0.2-0.45, Cr is 22-28, and Ni is 3.5-13, and Si is 0.1-0.4, N is 0.1-0.4, RE is 0.01-3, and Mo is 0.15-2.3, and W is 0.15-2.3, Co is 0-13, Mn is 1-13, and Mg is 0.0005-0.10, and surplus is Fe and impurity.Preferably, described impurity is S and P, and the weight percent of S and P all is not higher than 0.03.Preferably, C weight percent be 0.25-0.40.The characteristic that this ultra-strong refractory steel has has improved the ability of water flowing steel pipe 1 withstand high temperatures and wearing and tearing, thus the service life of having improved water beam of wind leading wall of the present invention.
The external diameter scope of water flowing steel pipe 1 is 200 to 240 millimeters, and wall thickness range is 15 to 22 millimeters.The embodiment of a preferred water flowing steel pipe 1 is: the external diameter of water flowing steel pipe 1 is 219 millimeters, and wall thickness is 18 millimeters.This embodiment is so that the service life of water flowing steel pipe 1 and internal water flow (internal diameter) have been reached balance.
Water flowing steel pipe 1 of the present invention adopts centre spinning method to make.Centre spinning method is that liquid metal is poured in the casting mold of rotation, at the centrifugal action lower charging type and be frozen into the casting method of foundry goods.The casting mold that centrifugal casting is used, different according to foundry goods shape, size and production lot, can select non-metal type (such as sand mold, shell mould or plycast), metal mold or deposited casting mold with dope layer or resin layer of sand in metal mold.The revolution of casting mold is the important parameter of centrifugal casting, enough centrifugal force should be arranged to increase the compactness of foundry goods metal, and centrifugal force again can not be too large, in order to avoid hinder the contraction of metal.The characteristics of centrifugal casting are molten metals at the centrifugal action lower charging type and solidify that the metal feeding is effective, and the foundry goods outer tissue is fine and close, and non-metallic inclusion is few, good mechanical property.Therefore, the wear-resistant ability in the outside of water flowing steel pipe 1 of the present invention (bearing the surface of washing away) is strong, has improved service life.
It should be noted that the above only for preferred embodiment of the present invention, be not so limit scope of patent protection of the present invention that the present invention can also adopt equivalent technologies to replace.So the equivalence that all utilizations specification of the present invention and diagramatic content are done changes, or directly or indirectly apply to other correlative technology fields and all in like manner all be contained in the scope that the present invention contains.
Claims (4)
1. high temperature resistant, a wear-resisting water beam of wind leading wall comprises the many water flowing steel pipes that are arranged side by side, and it is characterized in that: described water flowing steel pipe adopts centre spinning method to make, and the material of described water flowing steel pipe is ultra-strong refractory steel; The composition of described ultra-strong refractory steel and percentage composition weight: C are 0.2-0.45, Cr is 22-28, and Ni is 3.5-13, and Si is 0.1-0.4, N is 0.1-0.4, RE is 0.01-3, and Mo is 0.15-2.3, and W is 0.15-2.3, Co is 0-13, Mn is 1-13, and Mg is 0.0005-0.10, and surplus is Fe and impurity.
2. described high temperature resistant, wear-resisting water beam of wind leading wall according to claim 1, it is characterized in that: the external diameter scope of described water flowing steel pipe is 200 to 240 millimeters, wall thickness range is 15 to 22 millimeters.
3. described high temperature resistant, wear-resisting water beam of wind leading wall according to claim 1 and 2, it is characterized in that: described impurity is S and P, and the weight percent of S and P all is not higher than 0.03.
4. described high temperature resistant, wear-resisting water beam of wind leading wall according to claim 1 and 2 is characterized in that: C weight percent be 0.25-0.40.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310017825XA CN103063012A (en) | 2013-01-18 | 2013-01-18 | High-temperature wear-resistant water beam of air-guiding wall |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310017825XA CN103063012A (en) | 2013-01-18 | 2013-01-18 | High-temperature wear-resistant water beam of air-guiding wall |
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| CN103063012A true CN103063012A (en) | 2013-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201310017825XA Pending CN103063012A (en) | 2013-01-18 | 2013-01-18 | High-temperature wear-resistant water beam of air-guiding wall |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108796387A (en) * | 2018-06-15 | 2018-11-13 | 酒泉钢铁(集团)有限责任公司 | A kind of tungstenic corrosion-proof wear material and the method using the material preparation crust-breaking chips |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2457170Y (en) * | 2000-12-29 | 2001-10-31 | 莱芜钢铁股份有限公司烧结厂 | Air guide wall water beam of pelletizing vertical furnace |
| CN2672592Y (en) * | 2003-12-31 | 2005-01-19 | 新疆八一钢铁集团有限责任公司 | Improved vertical furnace wind guide wall water beam |
| CN1667154A (en) * | 2005-04-18 | 2005-09-14 | 张光华 | Ultra-strong refractory steel |
| CN200979365Y (en) * | 2006-11-27 | 2007-11-21 | 唐山大方铸造有限公司 | A wind guide wall of a shaft furnace |
| CN203274465U (en) * | 2013-01-18 | 2013-11-06 | 南京工业大学 | High temperature resistant and wear resistant water beam of air-guiding wall |
-
2013
- 2013-01-18 CN CN201310017825XA patent/CN103063012A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2457170Y (en) * | 2000-12-29 | 2001-10-31 | 莱芜钢铁股份有限公司烧结厂 | Air guide wall water beam of pelletizing vertical furnace |
| CN2672592Y (en) * | 2003-12-31 | 2005-01-19 | 新疆八一钢铁集团有限责任公司 | Improved vertical furnace wind guide wall water beam |
| CN1667154A (en) * | 2005-04-18 | 2005-09-14 | 张光华 | Ultra-strong refractory steel |
| CN200979365Y (en) * | 2006-11-27 | 2007-11-21 | 唐山大方铸造有限公司 | A wind guide wall of a shaft furnace |
| CN203274465U (en) * | 2013-01-18 | 2013-11-06 | 南京工业大学 | High temperature resistant and wear resistant water beam of air-guiding wall |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108796387A (en) * | 2018-06-15 | 2018-11-13 | 酒泉钢铁(集团)有限责任公司 | A kind of tungstenic corrosion-proof wear material and the method using the material preparation crust-breaking chips |
| CN108796387B (en) * | 2018-06-15 | 2020-05-15 | 酒泉钢铁(集团)有限责任公司 | Tungsten-containing corrosion-resistant and wear-resistant material and method for preparing crust-breaking hammer by using same |
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Application publication date: 20130424 |