CN2195077Y - Oxygen lance for blowing hot material in steel-smelting furnace - Google Patents
Oxygen lance for blowing hot material in steel-smelting furnace Download PDFInfo
- Publication number
- CN2195077Y CN2195077Y CN94228911U CN94228911U CN2195077Y CN 2195077 Y CN2195077 Y CN 2195077Y CN 94228911 U CN94228911 U CN 94228911U CN 94228911 U CN94228911 U CN 94228911U CN 2195077 Y CN2195077 Y CN 2195077Y
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- CN
- China
- Prior art keywords
- inlet
- tube
- oxygen
- spray gun
- outer tube
- 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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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
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- Furnace Charging Or Discharging (AREA)
Abstract
The utility model relates to an oxygen lance for blowing hot material in a steel-smelting furnace which is a casing tube straight cylinder spiral flow type structure, composed of a central tube, a middle casing tube, an outer casing tube, and a cooling water flow channel. The central tube is arranged in the centre of the lance. The inlet is arranged on the side and joint tightened with the tube wall of the outer casing tube. The inlet of the middle casing tube is arranged on the back end and is welding sealed with the tube wall of the outer casing tube. The inlet of the outer casing tube is arranged on the same side with the inlet of the center tube. The periphery of the outer casing tube is provided with the cooling water flow channel. The rears of the inlet and the outlet are welding sealed with the tube wall of the outer casing tube. When hot material is in the furnace, the heating strength and thermal efficiency in the furnace are high, and the utility model also has the advantages of energy saving and yield increasing.
Description
The utility model relates to a kind of feeding device that STEELMAKING PRODUCTION is used, especially a kind of oxygen lance of blowing hot material in steel-smelting furnace.
At present, oxygen-combustion rifle that domestic and international real stove is used all is to be purpose to flux in the stove, the coaloust-oxygen gun that University of Science ﹠ Technology, Beijing the has developed a kind of domestic and international initiative technology industrialization already of fluxing, it has played the fusing of acceleration waste steel for electric furnace, improve thermo-efficiency in the stove, the effect of energy-saving and production-increase is gone into supplies such as stove sweetening agent, ore, lime yet also can't resolve heating, still go into stove, be unfavorable for the raising of steel-smelting furnace thermo-efficiency with cold material.
The purpose of this utility model is a kind of spray gun of development, in steel-smelting furnaces such as electric furnace, converter, open hearth, can create a kind of thermal-flame, go into the stove supplies under the sweeping along of thermal-flame, particle is dispersion state, in flame, be heated into high-temperature material and go into stove, improve thermo-efficiency in the molten bath, energy-saving and production-increase.
For reaching above-mentioned purpose, the utility model can be realized by following scheme.By pipe core, middle sleeve, the oxygen lance that outer tube and water coolant runner are formed to the steel-smelting furnace blowing hot material, its constructional feature is that this spray gun is the straight tube of a sleeve pipe cyclone type structure, pipe core is secondary oxygen and lime powder runner, be positioned at the spray gun centre, inlet is driveed in side and the welding of outer tube tube wall fixing, middle sleeve is a coal dust, an oxygen runner, inlet is opened in the spray gun rearward end, with outer tube tube wall welded seal, outer tube is three oxygen runners, inlet is opened at pipe core inlet homonymy, and fixing with the welding of three oxygen inlet tube walls, the outer tube periphery has the water coolant runner, have cooling water inlet and cooling water outlet in relative two sides, water coolant runner rear end and outer tube tube wall welded seal, middle sleeve becomes internal withdraw type with the pipe core front position with the spray gun front end, makes near the cavity that forms of middle sleeve and pipe core front end.
Characteristics of the present utility model are to use fuel extensive, the hot supplies of directly in the molten bath, jetting, and the supplies short period of time can reach a high temperature, and has improved heat supply intensity and thermo-efficiency in the stove, and is energy-saving and cost-reducing, improved the economy of output and steelmaking process.
Be described with reference to the accompanying drawings
Fig. 1 is oxygen-coal spray gun structure synoptic diagram.
Fig. 2 is oxygen-oil, gas gun synoptic diagram.
As can be seen from Figure 1, oxygen-coal lance is a kind of sleeve pipe straight tube cyclone type structure of being got up by sleeve-assembled, pulverized limestone and secondary oxygen enter the runner from central tube (7) entrance (3) simultaneously, under the effect of high-voltage secondary oxygen, spray from central tube (7) leading section, coal dust and an oxygen enter the spray gun from middle sleeve (8) entrance (2), under the hyperbaric oxygen effect at leading section (6) and pulverized limestone, secondary oxygen is mixed into coal dust, pulverized limestone, the outstanding foul smell stream of the mixing of oxygen, three times oxygen enters outer tube (9) from outer tube entrance (4), from spray gun front end and coal dust, pulverized limestone, the at a high speed ejection of the outstanding foul smell stream of oxygen mix interflow, material particles is dispersity in thermal-flame, be heated to more than 1000 ℃, spray in the steel-smelting furnace with a kind of thermal material. Periphery at outer tube (9) has cooling water runner (10), and cooling water enters in the cooling water runner (10) from cooling water inlet (5), discharges from coolant outlet (1) then.
Embodiment 1:
Fig. 1 has provided oxygen-coal spray gun structure, get pipe through three different metal tubes, caliber is decided by flow, the flow velocity of oxygen therapy, fuel and material, water coolant runner (10) extends to the spray gun leading section always, middle sleeve (8) becomes internal withdraw type with pipe core (7) front position with the spray gun front end, pipe core (7) and the welding of outer tube (9) tube wall are fixing, middle sleeve (8) and outer tube (9) tube wall welded seal, outer tube (9) is fixing with the welding of three oxygen inlet (4) tube walls, water coolant runner (10) rearward end and outer tube (9) tube wall welded seal.Pipe core inlet (3) and outer tube inlet (4) leave in spray gun the same side, and middle sleeve inlet (2) has water coolant runner (10) in the spray gun rearward end around the outer tube.
Embodiment 2:
Fig. 2 has provided a kind of oxygen-oil, gas gun, get two metal tubes, Guan Jing is by flow, the flow velocity decision of actual fed oxygen, fuel and material, logical combustion gas of pipe core (7) or oil, front end is shorter than middle sleeve, oil, fuel gas inlet (3) are opened in rearward end, logical oxygen of middle sleeve (8) and lime powder, middle sleeve inlet (2) is positioned at the side, water coolant runner (15) is enclosed in middle sleeve (8) periphery, front end aligns with spout, and rearward end is provided with cooling water inlet (5) at middle sleeve inlet (2) homonymy, and opposite side is established cooling water outlet (1).Difference from Example 1 is not establish oxygen runner three times.Other are with embodiment 1.
Claims (2)
1, a kind of by pipe core, middle sleeve, the oxygen combustion spray gun that outer tube and water coolant runner are formed to the steel-smelting furnace blowing hot material, it is characterized in that: this spray gun is the straight tube of a sleeve pipe cyclone type structure, pipe core is secondary oxygen and lime powder runner, be positioned at the spray gun centre, inlet is driveed in side and the welding of outer tube tube wall fixing, middle sleeve is a coal dust, an oxygen runner, inlet is opened in the spray gun rearward end, with outer tube tube wall welded seal, outer tube is three oxygen runners, inlet is opened at pipe core inlet homonymy, fixing with the welding of three oxygen inlet tube walls, the outer tube periphery has the water coolant runner, have cooling water inlet and cooling water outlet in relative two sides, water coolant runner rear end and outer tube tube wall welded seal, middle sleeve becomes the equal difference internal withdraw type with the pipe core front position with the spray gun front end, makes near the cavity that forms of middle sleeve and pipe core front end.
2, according to claim 1 in steel-smelting furnace the oxygen combustion spray gun of blowing hot material, it is characterized in that not establishing oxygen runner three times.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94228911U CN2195077Y (en) | 1994-06-17 | 1994-06-17 | Oxygen lance for blowing hot material in steel-smelting furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN94228911U CN2195077Y (en) | 1994-06-17 | 1994-06-17 | Oxygen lance for blowing hot material in steel-smelting furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2195077Y true CN2195077Y (en) | 1995-04-19 |
Family
ID=33841350
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN94228911U Expired - Fee Related CN2195077Y (en) | 1994-06-17 | 1994-06-17 | Oxygen lance for blowing hot material in steel-smelting furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2195077Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100554438C (en) * | 2004-05-31 | 2009-10-28 | 奥图泰有限公司 | Direct reductive equipment and method |
| CN101851696A (en) * | 2010-06-10 | 2010-10-06 | 河北文丰钢铁有限公司 | Raw material preheating and shoot charging system of top-blown oxygen steelmaking converter |
| CN101270873B (en) * | 2007-03-23 | 2011-06-15 | 宝山钢铁股份有限公司 | Method and device for blowing breeze to pure oxygen smelting mobile filling bed smelting furnace |
| CN116182558A (en) * | 2023-02-24 | 2023-05-30 | 浙江华友钴业股份有限公司 | Oxygen-enriched molten pool melting furnace and heat consumption type material smelting method |
-
1994
- 1994-06-17 CN CN94228911U patent/CN2195077Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100554438C (en) * | 2004-05-31 | 2009-10-28 | 奥图泰有限公司 | Direct reductive equipment and method |
| CN101270873B (en) * | 2007-03-23 | 2011-06-15 | 宝山钢铁股份有限公司 | Method and device for blowing breeze to pure oxygen smelting mobile filling bed smelting furnace |
| CN101851696A (en) * | 2010-06-10 | 2010-10-06 | 河北文丰钢铁有限公司 | Raw material preheating and shoot charging system of top-blown oxygen steelmaking converter |
| CN101851696B (en) * | 2010-06-10 | 2012-10-10 | 河北文丰钢铁有限公司 | Raw material preheating and shoot charging system of top-blown oxygen steelmaking converter |
| CN116182558A (en) * | 2023-02-24 | 2023-05-30 | 浙江华友钴业股份有限公司 | Oxygen-enriched molten pool melting furnace and heat consumption type material smelting method |
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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 |