CN103375994A

CN103375994A - High temperature melt discharge pipe and smelting furnace with same

Info

Publication number: CN103375994A
Application number: CN2012101280316A
Authority: CN
Inventors: 不公告发明人
Original assignee: SICHUAN LVYE TECHNOLOGY Co Ltd
Current assignee: SICHUAN LVYE TECHNOLOGY Co Ltd
Priority date: 2012-04-27
Filing date: 2012-04-27
Publication date: 2013-10-30

Abstract

The invention relates to a high temperature melt discharge pipe and a smelting furnace with the same. A tubular structure like a submerged bend is processed through high temperature resistant materials, a medium-frequency power supply coil winds on the outer wall of the submerged bend, and one end of the submerged bend is communicated with a discharge port arranged at the bottom of the smelting furnace. Melt deposited at the position of the submerged bend is cooled and solidified and blocks a discharge channel of the smelting furnace during smelting, and after smelting is finished, the medium-frequency power supply coil located on the outer side of the submerged bend is electrified, the condensed materials at the position of the submerged bend is subjected to heating and melting, accordingly melt in the smelting furnace is discharged through the high temperature melt discharge pipe, melt and the inner wall of the furnace do not contact with the air, and further potential safety hazards are reduced.

Description

High temperature solution drainage conduit and the smelting furnace of high temperature solution drainage conduit is arranged

Technical field

The present invention relates to a kind of field of metallurgy high temperature solution drainage conduit and the smelting furnace of high temperature solution drainage conduit is arranged.

Background technology

Intermediate frequency furnace is widely used in field of metallurgy, and it is the electromagnetic field that utilizes IF-FRE, and the raw material in the body of heater is carried out eddy heating for heating, and raw metal can produce very large " eddy current " electric current because of cutting magnetic line in alternating magnetic field, then generate heat, melt.But in existing intermediate frequency furnace metallurgical smelting, adopt Dumpage type to discharge the liquid of melting, dangerous when not only toppling over, heat waste is large, the easy oxidation of the liquid of melting, and oxidation also easily occurs and reduction of service life in the furnace wall.In casting field, can not satisfy continuous casting process to the demand of melting liquid.

Siphon trap is " U " shape structure on the pipeline, one end of U-shaped structure is that liquid flows into the end body, the other end is liquid outflow end body, liquid flows into and holds body to be higher than liquid outflow end body during use, be mainly used on the drainage pipelines such as building trade drainage pipeline, w.c.pan, hand basin, the water that accumulates in the U-shaped structure has ponding, can prevent that the gas of sewer from flowing to liquid inflow end by liquid outflow end body, thereby plays the effect of deodorization.

Summary of the invention

In order to overcome in the existing metallurgical smelting the defective in the high-temp liquid discharging, the invention provides a kind of discharger of high temperature solution used in metallurgy, make the liquid of melting not adopt Dumpage type to discharge furnace chamber, reduce the chance of liquid, stove inwall and the contact with air of melting.

Technical scheme

A kind of high temperature solution drainage conduit, mainly comprise by exotic material consist of with the pipeline of siphon trap structure and duct wall Wai Chan around the intermediate frequency power supply coil that is used for heating;

Duct wall adopts exotic material;

The exotic material that consists of duct wall can be selected in the materials such as zirconia, alundum (Al2O3), magnesia, graphite, heat resisting steel, diamond spar of ability relevant temperature one or more according to the temperature of smelting;

Medium frequency electric source coil Chan is outside the duct wall of siphon trap structure.

Between the exotic material layer of formation duct wall and the intermediate frequency power supply coil high temperature resistant heat insulation layer is arranged.

Smelting furnace with the high temperature solution drainage conduit, charging aperture is arranged at furnace chamber top, and charging aperture is provided with the charging aperture valve, the Waste gas outlet on the furnace wall and furnace chamber UNICOM, be the intermediate frequency power supply coil outside the furnace wall, furnace bottom has the liquid of discharge gate and high temperature solution drainage conduit to flow into end tube chamber UNICOM.

The siphon trap structure is positioned at described liquid and flows into end tube chamber and liquid outflow end tube chamber) between; Liquid flows into the end tube chamber and is higher than liquid outflow end tube chamber.

High temperature solution among the present invention refers to be molten condition when being higher than its fusing point, is solid-state material melt flow stream at high temperature when being lower than its fusing point.

Beneficial effect: utilize the high temperature solution drainage conduit no longer to adopt to topple over mode just the liquation in the furnace chamber can be discharged, thereby reduce the chance of liquid, stove inwall and the contact with air of melting, reduce safety and fall into trouble.

With the smelting furnace of high temperature solution drainage conduit when the melting, the deposit fluid that is positioned at siphon trap head place solidifies and has sealed the discharge tube chamber, behind the charging aperture valve closing, raw material in the furnace chamber just can melting in the situation of secluding air, when melting finishes liquation to be discharged smelting furnace, only need drainage conduit intermediate frequency power supply coil electricity, the melting material that siphon trap section is solidified melts again, just can make liquation in the stove be discharged to the appointed place and not with Kong Qi Jie Tong.

Description of drawings: Fig. 1 is high temperature solution drainage conduit longitudinal section schematic diagram, 107-drainage conduit intermediate frequency power supply coil wherein, and the 108-tube wall, 109-high temperature solution outflow end tube chamber, 110-liquation liquid level, 112-one high temperature solution flow into the end tube chamber

Fig. 2 is the smelting furnace longitudinal section schematic diagram with the high temperature solution drainage conduit, and wherein the 201-furnace wall is outer, intermediate layer, 202-furnace wall, 203-furnace wall internal layer, 204-smelting furnace intermediate frequency power supply coil, 205-charging aperture, 206-furnace chamber, 207-drainage conduit intermediate frequency power supply coil, the 208-tube wall, 209-high temperature solution outflow end tube chamber, 210-deposition liquation liquid level, 211-blast pipe, 212-high temperature solution flow into the end tube chamber.

The specific embodiment

Embodiment 1: a kind of high temperature solution drainage conduit, comprise the pipeline with the siphon trap structure, duct wall Wai Chan around the intermediate frequency power supply coil that is used for heating; Duct wall adopts exotic material; Chan is around intermediate frequency power supply coil 107 Wai duct wall 108; One end of this tubular structure is communicated with furnace chamber through bottom and/or the bottom of smelting furnace body of heater; When smelting beginning, blocking pipe after the liquation inflow siphon trap section metal line 110 deposition cooled and solidified, Gei Chan transmits electricity around the intermediate frequency power supply coil 107 on the pipeline when the liquation in the furnace chamber need be discharged furnace chamber, the melting material of siphon trap section is melted rapidly, then the liquation in the furnace chamber is discharged from pipeline, then closes the intermediate frequency power supply on this pipeline, makes long-pending knot in the liquation cooled and solidified of siphon trap section.

Embodiment 2: the exotic material that consists of tube wall 108,208 can be selected according to the temperature of smelting the materials such as zirconia, alundum (Al2O3), magnesia, graphite, heat resisting steel, diamond spar of ability relevant temperature.Plumbous fusing point is 327.5 degrees centigrade, pipe wall material can be used heat resisting steel, when producing high titanium slag, wherein the fusing point of titanium dioxide is about 1800 degrees centigrade, the peak melting point of iron is 1535 degrees centigrade, 2200 degrees centigrade of tubular zirconium-oxide energy heatproofs, pipe wall material is preferably selected zirconia when high titanium slag is produced in melting.

Embodiment 3: the pyroceram fibre plate is adopted in furnace wall outer 201, and intermediate layer, furnace wall 202 adopts alundum (Al2O3) to water aluminium, and furnace wall internal layer 203 adopts zirconia.

Embodiment 4:Be coated with high-temperature-resistant thermal-insulation Cai Liao Zai Chan around the intermediate frequency power supply coil outside the siphon trap tube wall 108.

Embodiment 5: open the ilmenite concentrate after the input of charging aperture valve is reduced, this moment, the ilmenite concentrate temperature was about 950 ℃, open the Waste gas outlet valve and enter waste gas treatment equipment, the metal M g when startup intermediate frequency furnace power supply is warming up to 1200 ℃ after the reduction reaches boiling point formation gaseous state and discharges from exhaust outlet; Metal Ca when temperature rises to 1500 ℃ after the reduction reaches boiling point formation gaseous state and discharges from exhaust outlet, enters exhaust-gas treatment; The fe of ilmenite concentrate the inside fully is molten into liquid iron in the time of 1600 ℃; The TiO of ilmenite concentrate the inside when being warming up to 1800 ℃ of left and right sides ₂Fully be fused into liquid state; Ilmenite concentrate fully melts rear startup discharge gate intermediate frequency furnace power supply and is warming up to solid-state Fe and TiO after 1700 ℃ of siphon trap sections solidify ₂Be fused into liquid state and discharge from discharging opening, treat liquid Fe and TiO in the high temperature melting furnace ₂After solution is drained, close discharging opening intermediate frequency furnace power supply, allow siphon trap section be cooled to below 1100 ℃, the liquid of siphon trap section is frozen into the solid-state rear discharging opening that naturally stops up.Again the ilmenite concentrate that adds after reducing enters next stove melting.

Embodiment 6:Outside siphon trap tube wall 108 be Wai the section of tubing of metal line below 110 Chan around intermediate frequency power supply coil 107;

Embodiment 7: the liquid of high temperature solution drainage conduit flows into the end tube chamber from tapping hole and the blast furnace chamber UNICOM of blast furnace.

Embodiment 8: the furnace chamber top that temperature sensor is installed, temperature sensor are embedded in the refractory ceramics pipe in the furnace wall (top), and inductive probe stretches in the furnace chamber, are connected with power supply, display outside the furnace wall.

Embodiment 9: the siphon trap structure is positioned at described liquid and flows between end tube chamber 112,212 and the liquid outflow end tube chamber 109,209; Flow into end tube chamber 112,212 at the state of use liquid and be higher than liquid outflow end tube chamber 109,209.

Embodiment 10: the high temperature solution drainage conduit also can be used on the unsealed smelting furnace, such as the tapping hole at steel-making blast furnace the outflow that a high temperature solution drainage conduit just can be controlled molten steel, molten iron easily is installed, and is conducive to smelt automation control.

Claims

1. high temperature solution drainage conduit, it is characterized in that: described drainage conduit mainly comprises following two parts:

A, the pipeline with the siphon trap structure that is consisted of by exotic material;

B, duct wall (108) Wai Chan around the intermediate frequency power supply coil (107) that is used for heating.

2. a kind of high temperature solution drainage conduit according to claim 1 is characterized in that described exotic material is for selecting in the materials such as zirconia, alundum (Al2O3), magnesia, graphite, heat resisting steel, diamond spar of ability relevant temperature one or more according to the temperature of smelting liquation.

3. a kind of high temperature solution drainage conduit according to claim 1 is characterized in that described exotic material is zirconia.

4. according to claim 1,2 or 3 described a kind of high temperature solution drainage conduit is characterized in that: between the exotic material layer of formation duct wall and the intermediate frequency power supply coil high temperature resistant heat insulation layer is arranged.

5. a kind of high temperature solution drainage conduit according to claim 4 is characterized in that described high temperature resistant heat insulation layer is for being coated in the high-temperature-resistant thermal-insulation material outside the tube wall (108).

6. a kind of high temperature solution drainage conduit according to claim 4 is characterized in that described siphon trap structure is positioned at described liquid and flows between end tube chamber (112,212) and the liquid outflow end tube chamber (109,209); Liquid flows into end tube chamber (112,212) and is higher than liquid outflow end tube chamber (109,209).

7. smelting furnace with the described high temperature solution drainage conduit of the arbitrary claim of claim 1-6, it is characterized in that: charging aperture (205) is arranged at furnace chamber top, charging aperture (205) is provided with the charging aperture valve, Waste gas outlet on the furnace wall (211) and furnace chamber UNICOM, be intermediate frequency power supply coil (204) outside the furnace wall, furnace bottom has discharge gate and holds tube chamber UNICOM with the liquid inflow of high temperature solution drainage conduit.