CN201443974U - Continuous steelmaking furnace sludgeless steel-tapping hole - Google Patents
Continuous steelmaking furnace sludgeless steel-tapping hole Download PDFInfo
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- CN201443974U CN201443974U CN2009200286997U CN200920028699U CN201443974U CN 201443974 U CN201443974 U CN 201443974U CN 2009200286997 U CN2009200286997 U CN 2009200286997U CN 200920028699 U CN200920028699 U CN 200920028699U CN 201443974 U CN201443974 U CN 201443974U
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- steel
- slag free
- free tapping
- tapping mouth
- sludgeless
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Abstract
The utility model relates to the production of the continuous steelmaking, and provides a siphon sludgeless steel-tapping hole of a continuous steelmaking furnace device, which comprises a steel-tapping pipeline, a power supply coil (5) which is arranged on the periphery of the steel-tapping pipeline and an exhaust port (6) which is arranged on the upper part of the steel-tapping pipeline, wherein a water-cooling furnace wall (11) is arranged outside the steel-tapping pipeline; the steel-tapping pipeline presents in a Z shape and comprises a sludgeless steel-tapping hole inlet (2), a vertical pipeline (3) and a sludgeless steel-tapping hole outlet (4), the sludgeless steel-tapping hole inlet (2) is lower than the sludgeless steel-tapping hole outlet (4), and the sludgeless steel-tapping hole inlet (2) and the vertical pipeline (2) present in a 86-DEG to 92-DEG angle; and the sludgeless steel-tapping hole outlet (4) and the vertical pipeline (3) present in a 50-DEG to 90-DEG angle. The sludgeless steel-tapping hole has simple structure, easy maintenance and long service life. When in normal running, the heat of the smoke of an oxygen furnace is used to heat the sludgeless steel-tapping hole so as to prevent the freezing or binding of the liquid steel and to save the energy.
Description
Technical field
The utility model relates to the production of continuous steelmaking, relates in particular to a kind of siphon slag free tapping mouth of continuous steelmaking equipment, belongs to technical field of ferrous metallurgy.
Background technology
The long flow sheet equipment of Ferrous Metallurgy tradition is many, in large scale, and investment is high, and the land occupation area is big, and the production cycle is long, the energy consumption per ton steel height, and environmental pollution is serious, and the especially pollution of coking system is the drawback that the long flow process of tradition can't overcome.Because the shortage of coking coal resource, people are constantly seeking mill coal ironmaking, steel-making new technology.As the fused reduction iron-smelting new technology, mainly contain COREX, FINEX, AUSIRON, HISMELT, DIOS, ROMELT, CCF, AISI, CLEANMELT etc.The HISMELT process exploitation is ripe, receives at Australian Kun Na and has built one 800,000 tons factory.The continuous steelmaking new technology discloses a kind of coal-iron ore microwave reduction and electric furnace steel-making method and apparatus also in continuous appearance as CN02116882.2; CN86105494 discloses brown coal pre-reduction of ore direct steelmaking stocking, is that ore is made spongy iron earlier, again by electric furnace steel making, rerolls into steel; CN200610040303.1 discloses the method with the induction furnace direct steelmaking; CN200610040696.6 discloses mixture block with Iron Ore Powder and anchracite duff and has utilized converter direct steelmaking method and CN200610040838.9 to disclose the method that the compound with iron scale and anchracite duff utilizes electric furnace direct steel-making method and CN87101210 to disclose a kind of iron ore direct steelmaking to be meant the cold bound pellet of being made by iron ore concentrate, mill coal and solvent without any reduction, to be added to the method for making steel in the modern industry converter; CN92113519.X discloses the method and apparatus with the ore direct steelmaking, be earlier ore to be reduced into spongy iron with reducing gas, then high-temperature sponge iron is sent in the melting chamber under the situation of isolating with ambient atmosphere and melted, add the method that slag former is removed harmful element again.The serialization that CN86106417 blast furnace continuous steelmaking and system steel are produced proposes to improve blast furnace and makes the method that fuel and reducing agent directly are smelt steel with pure oxygen and pressure gasifying gas.CN87104957.0 continuous steelmaking technique and equipment are established a kind of continuous steelmaking technique of forehearth, tank furnace and back stove, raw materials usedly remain blast-melted.Above patented technology to no slag tap a blast furnace, slag free tapping research is less, molten steel bonding even frozen problem are difficult to solve.
The utility model content
At the deficiencies in the prior art, the utility model provides a kind of siphon slag free tapping mouth of continuous steelmaking equipment, has realized not having and has freezed continuous slag free tapping.
The utility model proposes a kind of siphon slag free tapping mouth of continuous steelmaking equipment, the technical problem that has solved siphon slag free tapping mouth invar water bonding or freezed to handle.The size of siphon slag free tapping mouth designs according to the size of continuous steelmaking equipment capacity, the inlet of slag free tapping mouth links to each other with the steel mouth of putting of bottom, smelting furnace molten bath, the outlet of slag free tapping mouth is connected with the steel import on oxygen blast stove top, oxygen blast stove steel import is higher than the slag notch of oxygen blast stove, has realized the slag free tapping of smelting furnace to the oxygen blast stove.The slag free tapping mouth makes the not frozen or bonding of molten steel of its inner chamber by the multiple mode that the high-temperature flue gas of the pre-buried power supply coil eddy-current heating of inwall, top smoke exhaust pipe guiding oxygen blast stove heats, smoke exhaust pipe is replaced with the heating of consumable formula oxygen rifle, smoke exhaust pipe is replaced with the heating of coal gas oxygen burning rifle, keep the works fine state, the application of water-cooling wall can make reach more than 20 years its service life.
The utility model provides a kind of siphon slag free tapping mouth of continuous steelmaking furnace apparatus, and comprise steel conduit, go out the power supply coil (5) of steel conduit arranged around, the exhaust opening (6) of tapping conduit upper, going out the steel conduit outside has water cooled furnace wall (11); Go out steel conduit and be the Z font, comprise slag free tapping mouth inlet (2), vertical pipe (3) and slag free tapping mouth outlet (4), slag free tapping mouth inlet (2) is lower than slag free tapping mouth outlet (4), and slag free tapping mouth inlet (2) is 86～92 degree angles with vertical pipe (3); Slag free tapping mouth outlet (4) is 50～90 degree angles with vertical pipe (3).
Preferably, exhaust opening (6) is connected with smoke discharging pipe (8) by smoke discharging pipe connector (7).
Preferably, exhaust opening (6) by from oxygen consumption rifle connector (9) be connected from oxygen consumption rifle (10).
Preferably, the steel import of slag free tapping mouth links to each other with the oxygen blast stove with the smelting furnace of continuous steelmaking stove respectively with tapping hole.
Preferably, the slag free tapping mouth adopts refractory material to make, and described refractory material is selected from magnesia carbon brick or casting refractory.
The siphon slag free tapping mouth of continuous steelmaking furnace apparatus described in the utility model, mode of operation is as follows:
1) the slag free tapping mouth adopts integral prefabricated fabrication technique or job site to build the casting process making, and the steel import of slag free tapping mouth links to each other with the oxygen blast stove with smelting furnace respectively with tapping hole;
2) exhaust opening on slag free tapping mouth top is installed coal gas oxygen burning rifle baking slag free tapping mouth inner chamber, makes the inner chamber refractory material meet the requirements of baking process time and temperature (850 ℃～1100 ℃);
3) exhaust opening is replaced with smoke discharging pipe, and smoke discharging pipe links to each other with the coal gas output device of smelting furnace and oxygen blast stove, and the slag free tapping mouth enters normal operating condition;
4) molten steel flows to the oxygen blast stove by smelting furnace continuously by siphon slag free tapping mouth.
Preferably, the slag free tapping mouth adopts water-cooling wall, and reached more than 20 years its service life.
Preferably, the slag free tapping mouth is obliquely at the inner chamber of oxygen blast outlet of still side in the step 1), high temperature (1400 ℃～1600 ℃) flue gas of oxygen blast stove is discharged through inclined bore and smoke discharging pipe, and high-temperature flue gas plays lasting heat effect to the outlet conduit of slag free tapping mouth;
Preferably, in the step 1) the slag free tapping mouth takes place in molten steel freeze or when bond, smoke discharging pipe can be replaced with consumable formula oxygen rifle and force oxygen blast to be melted to the molten steel in the slag free tapping mouth VERTICAL TUBE to freeze or the molten steel that bonds;
Preferably, can pre-buried power supply coil in the slag free tapping mouth inwall refractory material in the step 1), molten steel freezes or when bond in the slag free tapping mouth takes place, and can utilize the medium-high frequency electromagnetic induction to make the molten steel of inner chamber produce eddy current and be heated to melt and freeze or the molten steel that bonds;
Preferably, the slag free tapping mouth can adopt the refractory material spray to rob by the exhaust opening on top the inwall of slag free tapping mouth is implemented the spray repair reparation in the step 1).
Concrete process route of the present utility model is: adopt integral prefabricated fabrication technique or job site to build casting process and make the slag free tapping mouth, connect smelting furnace and oxygen blast stove; Coal gas oxygen burning rifle baking slag free tapping mouth inner chamber is installed on the exhaust opening of slag free tapping mouth, is made the inner chamber refractory material meet the requirements of baking process time and temperature (850 ℃～1100 ℃); Be replaced with smoke discharging pipe on the exhaust opening, molten steel flows to the oxygen blast stove by smelting furnace continuously by siphon slag free tapping mouth and realizes slag free tapping; Adopt the oxygen blast stove high-temperature flue gas or/and consumable formula oxygen rifle or/and in the inwall refractory material medium-high frequency electromagnetic induction of pre-buried power supply coil make the molten steel of inner chamber produce mode such as eddy current to heat molten steel in the slag free tapping mouth, solve effectively that molten steel freezes or adhesion problem.The water cooled furnace wall structure can reach more than 20 years the service life of slag free tapping mouth.
Advantage of the present utility model is embodied in: the slag free tapping mouth structure is simple, and for ease of maintenaince, the life-span is long.Normal operation utilizes oxygen blast kiln gas heat heating slag free tapping mouth to prevent that freezing or boning, energy savings from appearring in molten steel.Special circumstances are once molten steel occurs and freeze or bond, and can adopt to blow molten, pre-buried modes such as power supply coil medium-high frequency eddy-current heating from the oxygen consumption rifle and solve that molten steel freezes or adhesion problem.
Description of drawings
Fig. 1 is a schematic flow diagram of the present utility model.Wherein: 1: slag free tapping mouth, 2: slag free tapping mouth inlet, 3: vertical pipe, 4: the outlet of slag free tapping mouth, 5: power supply coil, 6: exhaust opening, 7: smoke discharging pipe connector, 8: smoke discharging pipe, 11: the water cooled furnace wall.
Fig. 2 is an another kind of mode schematic flow diagram of the present utility model.Wherein: 9: from oxygen consumption rifle connector, 10: from the oxygen consumption rifle, other same Fig. 1.
The specific embodiment
Following examples are to further specify of the present utility model, but the utility model is not limited thereto.
Embodiment 1:
The slag free tapping mouth adopts magnesia carbon brick, magnesia casting material, water cooled furnace wall, and on-the-spot the block cast and the casting process making.
Slag free tapping jaws equipment of the present utility model comprises: 1: slag free tapping mouth, 2: slag free tapping mouth inlet, 3: vertical pipe, 4: the outlet of slag free tapping mouth, 5: power supply coil, 6: exhaust opening, 7: smoke discharging pipe connector, 8: smoke discharging pipe, 11: the water cooled furnace wall.
The slag free tapping mouth comprises steel conduit, goes out the power supply coil 5 of steel conduit arranged around, the exhaust opening 6 of tapping conduit upper, and going out the steel conduit outside has water cooled furnace wall 11; Go out steel conduit and be the Z font, comprise slag free tapping mouth inlet 2, vertical pipe 3 and slag free tapping mouth outlet 4, slag free tapping mouth inlet 2 is lower than slag free tapping mouth outlet 4, and slag free tapping mouth inlet 2 is 90 degree angles with vertical pipe 3; The outlet 4 of slag free tapping mouth is 50 degree angles with vertical pipe 3.Exhaust opening 6 is connected with smoke discharging pipe 8 by smoke discharging pipe connector 7.
The vertical section as shown in Figure 1, the slag free tapping mouth adopts the job site to build casting and casting process is made, slag free tapping mouth inlet 2 links to each other with smelting furnace, the slag free tapping mouth exports 3 and links to each other with the oxygen blast stove; Coal gas oxygen burning rifle baking slag free tapping mouth inner chamber is installed on the exhaust opening 6 of slag free tapping mouth, is made the inner chamber refractory material meet the requirements of baking process time and temperature (850 ℃～1100 ℃); Be replaced with smoke discharging pipe 8 on the exhaust opening, molten steel flows to the oxygen blast stove by smelting furnace continuously by siphon slag free tapping mouth and realizes slag free tapping.The water cooled furnace wall structure can reach more than 20 years the service life of slag free tapping mouth.
Embodiment 2:
The slag free tapping mouth adopts corundum matter casting material, water cooled furnace wall, and factory is cast into integral prefabricated, and the scene is connected with the oxygen blast stove with smelting furnace.Other is with embodiment 1.Slag free tapping mouth inlet 2 is 89 degree angles with vertical pipe 3; The outlet 4 of slag free tapping mouth is 89 degree angles with vertical pipe 3.
Embodiment 3:
The slag free tapping mouth adopts magnesia carbon brick, magnesia casting material, water cooled furnace wall, and on-the-spot the block cast and the casting process making.Other are with embodiment 1.In work initial stage or the use if in the slag free tapping mouth molten steel freeze or adhesion problem, immediately pre-buried power supply coil (5) is implemented power supply, the molten steel that adopts the medium-high frequency eddy-current heating to freeze or bond, the steel that freezes or bond near the inwall border in the tapping hole at first melts, progressively go into the MOLTEN STEEL FLOW passage, make the molten steel of smelting furnace begin to flow to the sample stove, accelerated to freeze or the fusing of the steel that bonds, freeze or the steel that bonds until fusing fully.
Embodiment 4:
Slag free tapping jaws equipment of the present utility model as shown in Figure 2.Wherein: 9: from oxygen consumption rifle connector, 10: from the oxygen consumption rifle, other same Fig. 1.
The slag free tapping mouth comprises steel conduit, goes out the power supply coil 5 of steel conduit arranged around, the exhaust opening 6 of tapping conduit upper, and going out the steel conduit outside has water cooled furnace wall 11; Go out steel conduit and be the Z font, comprise slag free tapping mouth inlet 2, vertical pipe 3 and slag free tapping mouth outlet 4, slag free tapping mouth inlet 2 is lower than slag free tapping mouth outlet 4, and slag free tapping mouth inlet 2 is 91 degree angles with vertical pipe 3; The outlet 4 of slag free tapping mouth is 75 degree angles with vertical pipe 3.Exhaust opening 6 by from oxygen consumption rifle connector 9 be connected from oxygen consumption rifle 10.
In work initial stage or the use if in the slag free tapping mouth molten steel freeze or adhesion problem, when central high-frequency induction heating tapping hole also can't solve, the steel that employing is freezed or bondd to tapping hole pipeline oxygen blast fusing from oxygen consumption rifle 10, freeze or the steel that bonds until melting fully, make the tapping hole operate as normal.
Claims (5)
1. the siphon slag free tapping mouth of a continuous steelmaking furnace apparatus comprises steel conduit, goes out the power supply coil (5) of steel conduit arranged around, the exhaust opening (6) of tapping conduit upper, and going out the steel conduit outside has water cooled furnace wall (11); Go out steel conduit and be the Z font, comprise slag free tapping mouth inlet (2), vertical pipe (3) and slag free tapping mouth outlet (4), slag free tapping mouth inlet (2) is lower than slag free tapping mouth outlet (4), and slag free tapping mouth inlet (2) is 86～92 degree angles with vertical pipe (3); Slag free tapping mouth outlet (4) is 50～90 degree angles with vertical pipe (3).
2. the siphon slag free tapping mouth of continuous steelmaking furnace apparatus as claimed in claim 1 is characterized in that, exhaust opening (6) is connected with smoke discharging pipe (8) by smoke discharging pipe connector (7).
3. the siphon slag free tapping mouth of continuous steelmaking furnace apparatus as claimed in claim 1 is characterized in that, exhaust opening (6) by from oxygen consumption rifle connector (9) be connected from oxygen consumption rifle (10).
4. the siphon slag free tapping mouth of continuous steelmaking furnace apparatus as claimed in claim 1 is characterized in that, the steel import of slag free tapping mouth links to each other with the oxygen blast stove with the smelting furnace of continuous steelmaking stove respectively with tapping hole.
5. the siphon slag free tapping mouth of continuous steelmaking furnace apparatus as claimed in claim 1 is characterized in that, the slag free tapping mouth adopts refractory material to make, and described refractory material is selected from magnesia carbon brick or casting refractory.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200286997U CN201443974U (en) | 2009-06-30 | 2009-06-30 | Continuous steelmaking furnace sludgeless steel-tapping hole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200286997U CN201443974U (en) | 2009-06-30 | 2009-06-30 | Continuous steelmaking furnace sludgeless steel-tapping hole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201443974U true CN201443974U (en) | 2010-04-28 |
Family
ID=42548656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200286997U Expired - Fee Related CN201443974U (en) | 2009-06-30 | 2009-06-30 | Continuous steelmaking furnace sludgeless steel-tapping hole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201443974U (en) |
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2009
- 2009-06-30 CN CN2009200286997U patent/CN201443974U/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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100428 Termination date: 20160630 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |