CN100453210C - Integral air brick capable of magnetic resistance and chemical corrosion resistance - Google Patents

Integral air brick capable of magnetic resistance and chemical corrosion resistance Download PDF

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Publication number
CN100453210C
CN100453210C CNB2006100788918A CN200610078891A CN100453210C CN 100453210 C CN100453210 C CN 100453210C CN B2006100788918 A CNB2006100788918 A CN B2006100788918A CN 200610078891 A CN200610078891 A CN 200610078891A CN 100453210 C CN100453210 C CN 100453210C
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air
brick
air brick
gas pipeline
diamagnetic
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CN1924501A (en
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贺中央
王锋刚
李天清
孙荣海
陈勇
张金龙
刘国勇
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Puyang Refractories Group Co Ltd
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Puyang Refractories Group Co Ltd
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Abstract

This invention discloses one anti-magnetic chemistry erosion integral transparent bricks, which comprise transparent brick chip, socket brick and gas supply system, wherein, the gas supply gas system adopts pre-made or pressure gas chamber by one transparent brick and gas channel with one connected to other end; the brick is or inorganic non-meal materials connected with ceramics materials or anti-chemistry erosion property covered without metal.

Description

The integral air brick of diamagnetic resist chemical
Technical field
The present invention relates to a kind of integral air brick, relate in particular to a kind of Metal Melting integral air brick that high-intensity magnetic field or institute's air blowing body have the diamagnetism resist chemical under the corrosive environment of extensive chemical that is used for.
Background technology
The casting industry coreless induction furnace is very general at home, but being limited to process conditions at present can only the low-grade steel grade of melting, the foundry goods grade of producing low, when the high-grade extraordinary foundry goods of casting, need to use ingot iron and valuable alloy to adjust molten steel composition, with high costs, and most high-grade foundry goods is wanted dependence on import.The coreless induction furnace bottom blowing process has begun to drop into practical application as a kind of new application technology, academic information shows, the coreless induction furnace bottom blowing can effectively reduce (O) in the molten steel, (N) and impurity element and non-metallic inclusion content such as (H), and can reduce the loss of valuable alloy in the molten steel, be very beneficial for improving steel quality, improve the foundry goods grade.
In ferroalloy smelting, a large amount of uses is top blast technology at present, under this technology, the molten iron of ladle bottom is difficult to fully be stirred, and yield of alloy is low, and graphite matter top blast air gun is dissolved in the molten iron when work, cause molten iron carburetting, reduced molten steel quality.Adopting bottom blowing process in the ferroalloy external refining is a development trend, and academic information shows, compares with the top blast mode, and the application of bottom-blown air brick can make yield of alloy improve 1 times, and can effectively improve the quality of molten iron.
In above-mentioned two fields, bottom-blown air brick all is simply to have transplanted the ladle bottom blowing air brick at present.Because ladle bottom blowing air brick core is wrapped up by iron sheet, the gas pipeline that links to each other with the external world also is a ferrous materials, the problem that exists air brick to lose efficacy in advance when therefore using in above-mentioned two fields:
1, the casting coreless induction furnace relies on the electromagnetism melting, comprise in the whole induction furnace that all there is induced field in outside sizable zone, therefore the iron sheet and the iron and steel matter gas pipeline of parcel can be heated by magnetic field induction around the air brick core, cause iron sheet and gas pipeline fusing cracking to cause gas leakage, therefore air brick incites somebody to action and the ability of losing the job.
2, refining gas is generally chlorine, presses institute's air or oxygen during ferroalloy smelting, and these gases at high temperature all have the chemical attack effect very strong to ferrous materials.The iron sheet of parcel and iron and steel matter gas pipeline can be penetrated by the above-mentioned gas corrosion around the air brick core, especially the welding position is easier is corroded, iron sheet and iron and steel matter gas pipeline lose sealing function after being corroded and penetrating, and cause gas leak, and therefore air brick incites somebody to action and the ability of losing the job.
Summary of the invention
In order to solve the problem of above-mentioned existence, the purpose of this invention is to provide a kind of can resist the effect of high-intensity magnetic field eddy-current heating again can be anti-the diamagnetic resist chemical integral air brick of extensive chemical corrosive gas corrosion.
Technical scheme of the present invention is to realize like this, a kind of integral air brick of diamagnetic resist chemical, comprise air brick core, brick cup and air supply system, wherein air supply system air chamber prefabricated by or mechanical pressing becomes with the gas pipeline group, one end of gas pipeline is communicated with the other end with air chamber and links to each other with the external world, the air brick core is an Inorganic Non-metallic Materials, the gas pipeline material that links to each other with the external world is ceramic material or austenitic stainless steel material with high diamagnetic and resist chemical performance, and the air brick core does not have the metal parcel.
Air chamber is trapezoidal, square, rectangle or polygon or irregularly shaped arbitrarily.
Gas pipeline can extend into inner or the direct and air chamber wall connection of air chamber.
Compared with prior art, advantage of the present invention is: this refractory material as inorganic non-metallic of air brick core and brick cup, air chamber is that preformed need not with metal gas making chamber, the gas pipeline that links to each other with the external world is ceramic material or austenitic stainless steel material with high diamagnetic and resist chemical performance, do not have material diamagnetic or that resistance to chemical attack is weak in the total, can guarantee integral air brick stable use under highfield or high chemical corrosivity environment.
Description of drawings
Fig. 1 is the integral air brick structure of prior art;
Fig. 2 is a cross-sectional view of the present invention;
Fig. 3 is an another kind of cross-sectional view of the present invention.
The specific embodiment
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail, but not as a limitation of the invention.
As shown in Figure 1, when integral air brick when influenced by high-intensity magnetic field, air brick has passed magnetic field in casting with coreless induction furnace, cutting magnetic line causes air brick core iron skin 5, iron and steel matter air chamber 4 and iron and steel matter gas pipeline 3 to form eddy-current heating, and along with temperature raises, above-mentioned three part iron materials take place softening, lose structural strength, ftracture under the gas pressure that air brick blew, gas leaks thereupon, causes the bottom blowing process failure.
The extensive chemical corrosive gas that the ladle refining was blown when integral air brick used under high chemical corrosivity environment enters in the iron and steel matter air chamber 4 along iron and steel matter gas pipeline 3, touch weld zone and air brick core 1 iron sheet, the ferrous materials vigorous reaction at these extensive chemical corrosive gas and above-mentioned three positions under the high temperature, when local position be corroded penetrate after, gas leaks along these positions, causes the bottom blowing process failure.
As Fig. 2, shown in Figure 3, a kind of integral air brick of diamagnetic resist chemical, comprise air brick core 1, brick cup 2 and air supply system, wherein air supply system by one prefabricated profiled air chamber 4 in air brick core 1 bottom and gas pipeline 3 form, one end of gas pipeline 3 is communicated with the other end with air chamber 4 and links to each other with the external world, air brick core 1 is an Inorganic Non-metallic Materials, gas pipeline 3 materials that link to each other with the external world are ceramic material or austenitic stainless steel material with high diamagnetic and resist chemical performance, and air brick core 1 no metal wraps up.
Owing to there is not iron sheet outside the air brick core 1, air chamber 4 is the non-metallic refractory of prefabricated or mechanical pressing, gas pipeline 3 materials that are connected with the external world are pottery or austenitic stainless steel material with high diamagnetic and resist chemical performance, therefore no matter be to use at strong magnetic field circumstance or in high chemical corrosivity environment, all can recurring structure do not destroy, the situation of gas leak, thereby reach purpose stable, safe handling.
Air chamber shape and be not limited in Fig. 2 or shown in Figure 3 with the matching design and the fixed form of gas pipeline in brick cup of gas pipeline in the diamagnetic resist chemical integral air brick of the present invention, tapering orientation, square or polygon that air brick core 1 is different even erose air chamber 4, gas pipeline 3 slightly stretch in the air chamber 4 or gas pipeline 3 are being carried out multiplely fixingly can realizing purpose of the present invention equally.
Obviously, the above embodiment of the present invention only is for clearer explanation example of the present invention, and is not the restriction of embodiment that the present invention is done.For those of ordinary skill in the field; can also make other multi-form variation and change on the basis of the above description; here need not also can't make all embodiments exhaustive, and these belong to variation or the change that spirit of the present invention extended out and still are among protection scope of the present invention.

Claims (3)

1, a kind of integral air brick of diamagnetic resist chemical, comprise air brick core, brick cup and air supply system, it is characterized in that air supply system adopts air chamber prefabricated or mechanical pressing to become with the gas pipeline group by one on air brick core or brick cup, one end of gas pipeline links to each other with the external world with air chamber connection, the other end, the air brick core is an Inorganic Non-metallic Materials, the air brick core does not have metal parcel, and the gas pipeline material that links to each other with the external world is ceramic material or austenitic stainless steel material with high diamagnetic and resist chemical performance.
2, the integral air brick of a kind of diamagnetic resist chemical according to claim 1 is characterized in that described air chamber is trapezoidal, square, rectangle or polygon.
3,, it is characterized in that described gas pipeline can extend into inner or the direct and air chamber wall connection of air chamber according to the integral air brick of claim 1 or described a kind of diamagnetic resist chemical.
CNB2006100788918A 2006-05-12 2006-05-12 Integral air brick capable of magnetic resistance and chemical corrosion resistance Active CN100453210C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB2006100788918A CN100453210C (en) 2006-05-12 2006-05-12 Integral air brick capable of magnetic resistance and chemical corrosion resistance

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Application Number Priority Date Filing Date Title
CNB2006100788918A CN100453210C (en) 2006-05-12 2006-05-12 Integral air brick capable of magnetic resistance and chemical corrosion resistance

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CN1924501A CN1924501A (en) 2007-03-07
CN100453210C true CN100453210C (en) 2009-01-21

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102642020B (en) * 2012-04-17 2014-12-10 马钢(集团)控股有限公司 Permeable brick for ladle

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2105350U (en) * 1991-05-10 1992-05-27 冶金部洛阳耐火材料研究院 Integrated structure straight hole ventilation brick for steel ladle
CN2404614Y (en) * 1999-11-30 2000-11-08 上海宝钢集团公司 Permeability brick for side applying bottom blowing argon
CN2586950Y (en) * 2002-12-06 2003-11-19 钢铁研究总院 Vanadium extracting revolving furnace bottom blowing air brick
CN2743063Y (en) * 2004-08-27 2005-11-30 濮阳濮耐高温材料有限公司 Improved solid permeable brick

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2105350U (en) * 1991-05-10 1992-05-27 冶金部洛阳耐火材料研究院 Integrated structure straight hole ventilation brick for steel ladle
CN2404614Y (en) * 1999-11-30 2000-11-08 上海宝钢集团公司 Permeability brick for side applying bottom blowing argon
CN2586950Y (en) * 2002-12-06 2003-11-19 钢铁研究总院 Vanadium extracting revolving furnace bottom blowing air brick
CN2743063Y (en) * 2004-08-27 2005-11-30 濮阳濮耐高温材料有限公司 Improved solid permeable brick

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