CN2245064Y - Oxygen-gas spray gun for producing iron and steel - Google Patents
Oxygen-gas spray gun for producing iron and steel Download PDFInfo
- Publication number
- CN2245064Y CN2245064Y CN 94230059 CN94230059U CN2245064Y CN 2245064 Y CN2245064 Y CN 2245064Y CN 94230059 CN94230059 CN 94230059 CN 94230059 U CN94230059 U CN 94230059U CN 2245064 Y CN2245064 Y CN 2245064Y
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- oxygen
- nozzle
- spray gun
- steel
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- Expired - Fee Related
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Abstract
The utility model relates to an oxygen-gas spray gun which is used for steel production, and mainly used for oxygen top blown converter steel making. A gas flue and a gas flue spray nozzle are additionally arranged on an existing spray gun structure. Additional heat source (gas) is fed into a furnace under the condition of guaranteeing the oxygen supply intensity of the existing production, so that the utility model produces flame with high kinetic energy and high temperature, strengthens inner furnace heating, improves traditional technique, widens the addition quantity of scrap steels (0-100% of the quantity of hot metal) and the limitation of hot metal composition and types of steel, enhances the quality of steel, reduces the consumption of raw materials, and shorten melting time. The utility model is especially suitable for small converters.
Description
The utility model is a kind of novel spray gun that is used for Iron and Steel Production, is mainly used in oxygen top blown converter steel making, and it has the dual-use function to molten iron oxygen blast and conveying external heat source (coal gas), secondly is to be used for electric furnace and openhearth steelmaking, also can be used for pulverized coal injection gas.
Currently use to such an extent that be single channel porous oxygen rifle the most widely, minority producer also uses dual channel oxygen lance, and the former has only to the oxygen blown simple function of molten iron, and the latter has the function of secondary combustion CO concurrently, but does not all have the function of carrying external heat source.Therefore they can not solve the problem that exists in the current converter production, as: molten iron composition, steel grade, adding amount of scrap steel there are many restrictions; The technology of a series of raising steel qualities (as: hot metal pretreatment external refining continuous casting ... Deng) can not satisfactorily realize.Chinese patent, notification number are GG86207587, though the day for announcing is the three runner oxygen rifles on February 10th, 1988 function of conveying external heat source (coal grain) are arranged, because the coal grain is oxidation heating under slag blanket, can not forms kinetic energy and thermal-flame and strengthen the stove internal heating; The coal intragranular contains objectionable impuritiess such as sulphur, phosphorus, and smelting is brought difficulty; Carrier gases N
2, not only steel quality is brought harm, and absorb a large amount of heat energy, reduced the converter efficiency of utilization; Particularly granulate suitable complexity of system device and explosive; So fail to be adopted by producer.
The purpose of this utility model just is that solving the problems referred to above that exist in the current converter production designs.
The technical scheme that the utility model achieves the above object is to be provided with main oxygen road (5) and main oxygen road nozzle (4); Subsidiary oxygen way (7) and subsidiary oxygen way nozzle (2); Water coolant inlet channel (9), water outlet (8) and shower nozzle inner channel (1), each nozzle is a convergent-divergent channel, be characterized in, increase a coal gas oxygen road (6) and multiply gasburner (3), promptly composition has five strands of passages, is provided with the oxygen of 3 kinds of nozzles---coal gas spray gun in the shower nozzle.Gasburner is a convergent-divergent channel, and the position of each nozzle in shower nozzle is commutative mutually.Set up gas pipe (6) and gasburner (3), be for when existing spray gun oxygen supply intensity is provided, in stove, carry external heat source (coal gas), guarantee oxygen, coal gas all with high-speed motion, is brought up the flame with enough kinetic energy (rigidity) and brightness (high temperature) at nozzle exit, strengthens the molten bath heating, smelt each process operations thereby improved, guarantee that the technology of a series of raising steel qualities satisfactorily realizes.
Major and minor nozzle of the present utility model can promptly be regardless of major and minor oxygen road with being located in same one deck oxygen road of spray gun.
Major and minor oxygen of the present utility model road designs of nozzles becomes same nozzle, promptly is regardless of major and minor oxygen nozzle.
Subsidiary oxygen way nozzle of the present utility model (2) gas pipe nozzle (3) can be convergent-divergent channel, also can be common convergent divergent channel, straight tube or circumferential weld.
Shower nozzle of the present utility model can be monoblock type or built-up type, and the monoblock type material is a red copper, and the built-up type material is red copper or red copper a---heat-resistance stainless steel.
Use the utility model can receive following effect: (1) relaxes the restriction to molten iron composition, steel grade and adding amount of scrap steel (0-100% of iron water amount), improves steel quality, thus the raw materials market and the finished product market of having widened Steel industry; (2) shorten tap to tap time, reduced raw materials consumption, improved economic benefit of enterprises by a relatively large margin; (3) opened up the new situation of top-blown oxygen converter, make it have the ability of competing mutually aspect steel quality, kind and the raw materials consumption with Electric furnace steel making, in addition, production for the numerous small vessel of China will have important breakthrough, they will no longer be that steel quality is poor, raw materials consumption height, typical case that economic benefit is low, and will become and large and medium-sized converter production the other shop mutually.
Accompanying drawing is an oxygen---coal gas spray gun structure synoptic diagram
Structure of the present utility model is described below by accompanying drawing:
Main oxygen road (5) and main oxygen road nozzle (4): oxygen enters the main oxygen road nozzle of shower nozzle through main oxygen road, main oxygen road nozzle is " Lavalle " type, oxygen is in the high fast direction of nozzle exit molten bath, and major function is the impurity in the oxidation molten iron, and secondary function is auxiliary few partly gas-fired.
Gas pipe (6) and multiply gas pipe nozzle (3): external heat source (coal gas) is provided in stove.
Subsidiary oxygen way (7) and subsidiary oxygen way nozzle (2): major function is to supply with the required oxygen of secondary combustion CO in gas-fired and the stove, brings up kinetic energy, thermal-flame jointly, secondly is the function that has main oxygen road concurrently with gas pipe nozzle, main oxygen road nozzle.
Water coolant is into and out of water channel (9), and (8) and shower nozzle interior passageway (1) thereof are supplied the spray gun water coolant, and the protection spray gun is not subjected to high temperature injury.
The position of each nozzle in shower nozzle is commutative mutually.
Major and minor nozzle can promptly be regardless of major and minor oxygen road with same one deck oxygen road of being located at spray gun, also major and minor designs of nozzles can be become same nozzle, promptly is regardless of major and minor nozzle.
Major and minor oxygen road nozzle and gas pipe nozzle all can be designed to " Lavalle " type, the velocity of discharge of gas is supersonic, gas pipe nozzle and subsidiary oxygen way nozzle also can be designed to common expansion (contraction) pipe, straight tubular or circumferential weld, velocity of discharge is a subsonic velocity, and gas is adjustable at spray gun ingress flow and pressure.
Form of nozzle has monoblock type and assembled, and material is red copper or red copper one heat-resistance stainless steel.
Claims (5)
1. an oxygen that is used for Iron and Steel Production---coal gas spray gun, be provided with main oxygen road (5) and main oxygen road nozzle (4), subsidiary oxygen way (7) and subsidiary oxygen way nozzle (2), water coolant inlet channel (9), water outlet (8) and shower nozzle inner channel (1), each nozzle is a convergent-divergent channel, it is characterized in that increasing a gas pipe (6) and multiply gasburner (3), promptly form and have five strands of passages, be provided with the oxygen of 3 kinds of nozzles in the shower nozzle---the coal gas spray gun, its gasburner is a position Wa Er pipe, and the position of each nozzle in shower nozzle is commutative mutually.
2. oxygen according to claim 1---coal gas spray gun is characterized in that, major and minor nozzle can promptly be regardless of major and minor oxygen road with being located in same one deck oxygen road of spray gun.
3. oxygen according to claim 1---coal gas spray gun is characterized in that major and minor oxygen road designs of nozzles becomes same nozzle, promptly is regardless of major and minor oxygen nozzle.
4. oxygen according to claim 1---coal gas spray gun is characterized in that pair, oxygen road nozzle (2), and gasburner (3) can be convergent-divergent channel, also can be common convergent divergent channel, straight tube or circumferential weld.
5. oxygen according to claim 1---coal gas rifle is characterized in that shower nozzle can be monoblock type or integrated structure, and the monoblock type material is a red copper, and the built-up type material is red copper or red copper a---heat-resistance stainless steel
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94230059 CN2245064Y (en) | 1994-12-20 | 1994-12-20 | Oxygen-gas spray gun for producing iron and steel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94230059 CN2245064Y (en) | 1994-12-20 | 1994-12-20 | Oxygen-gas spray gun for producing iron and steel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2245064Y true CN2245064Y (en) | 1997-01-15 |
Family
ID=33842252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94230059 Expired - Fee Related CN2245064Y (en) | 1994-12-20 | 1994-12-20 | Oxygen-gas spray gun for producing iron and steel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2245064Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103060510A (en) * | 2013-01-01 | 2013-04-24 | 北京科技大学 | High scrap ratio smelting method by adopting gas to heat |
| CN107794339A (en) * | 2016-09-02 | 2018-03-13 | 株式会社Posco | Spray gun and utilize its operating method |
| CN108642238A (en) * | 2018-06-04 | 2018-10-12 | 北京科技大学 | A kind of steel-making super burn surpasses cluster fluidic jet pipe and its super cluster fluidic method of super burn |
| CN109355457A (en) * | 2018-11-26 | 2019-02-19 | 江苏必瑞驰科技有限公司 | A kind of application of porous oxygen lance |
| CN109609722A (en) * | 2018-11-26 | 2019-04-12 | 江苏必瑞驰科技有限公司 | A kind of converter oxygen lance with burning and two kinds of functions of oxygen blast |
| CN109609717A (en) * | 2018-11-26 | 2019-04-12 | 江苏必瑞驰科技有限公司 | A kind of converter steel-smelting technique using porous oxygen lance |
| CN110081716A (en) * | 2018-01-26 | 2019-08-02 | 中国瑞林工程技术股份有限公司 | Top-blown spray gun for electronic waste smelting device |
-
1994
- 1994-12-20 CN CN 94230059 patent/CN2245064Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103060510A (en) * | 2013-01-01 | 2013-04-24 | 北京科技大学 | High scrap ratio smelting method by adopting gas to heat |
| CN107794339A (en) * | 2016-09-02 | 2018-03-13 | 株式会社Posco | Spray gun and utilize its operating method |
| CN110081716A (en) * | 2018-01-26 | 2019-08-02 | 中国瑞林工程技术股份有限公司 | Top-blown spray gun for electronic waste smelting device |
| CN110081716B (en) * | 2018-01-26 | 2024-04-23 | 中国瑞林工程技术股份有限公司 | Top-blowing spray gun for electronic waste smelting device |
| CN108642238A (en) * | 2018-06-04 | 2018-10-12 | 北京科技大学 | A kind of steel-making super burn surpasses cluster fluidic jet pipe and its super cluster fluidic method of super burn |
| CN109355457A (en) * | 2018-11-26 | 2019-02-19 | 江苏必瑞驰科技有限公司 | A kind of application of porous oxygen lance |
| CN109609722A (en) * | 2018-11-26 | 2019-04-12 | 江苏必瑞驰科技有限公司 | A kind of converter oxygen lance with burning and two kinds of functions of oxygen blast |
| CN109609717A (en) * | 2018-11-26 | 2019-04-12 | 江苏必瑞驰科技有限公司 | A kind of converter steel-smelting technique using porous oxygen lance |
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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 |