CN203364131U - Continuous casting machine baking nozzle capable of simultaneously using high-calorific-value high-pressure fuel and low-calorific-value low-pressure fuel - Google Patents
Continuous casting machine baking nozzle capable of simultaneously using high-calorific-value high-pressure fuel and low-calorific-value low-pressure fuel Download PDFInfo
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- CN203364131U CN203364131U CN 201320350006 CN201320350006U CN203364131U CN 203364131 U CN203364131 U CN 203364131U CN 201320350006 CN201320350006 CN 201320350006 CN 201320350006 U CN201320350006 U CN 201320350006U CN 203364131 U CN203364131 U CN 203364131U
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Abstract
The utility model relates to a continuous casting machine baking nozzle capable of simultaneously using high-calorific-value high-pressure fuel and low-calorific-value low-pressure fuel. A fuel pipeline is composed of a high-pressure fuel pipeline, a low-pressure fuel pipeline and a combustion air pipeline. A spray nozzle is directly connected with the high-pressure fuel pipeline, a low-pressure fuel pipeline is arranged on the outer face of the high-pressure fuel pipeline, the combustion air pipeline is arranged on the outer face of the low-pressure fuel pipeline, and high-pressure fuel in the high-pressure fuel pipeline, low-pressure fuel in the low-pressure fuel pipeline and combustion air in the combustion air pipeline are sprayed out of an opening of the spray nozzle in a centralized mode. The high-pressure fuel pipeline, the low-pressure fuel pipeline and the combustion air pipeline are adopted inside the baking nozzle, each type of fuel can be used alone, or the two types of fuel can be used together, the fuel is converged and mixed and sprayed out of the opening of the spray nozzle, therefore, various energy media can be fully mixed, the energy of the fuel is utilized to the greatest extent, and the best heating effect of a tundish is achieved. Two types of energy media with different properties can be brought into full play through the baking nozzle in the baking process, and the problem of the energy media in a steel mill can be solved.
Description
Technical field
The utility model relates to a kind of roasting nozzle of conticaster, the roasting nozzle of especially a kind of high low heating value and high-low pressure fuel use.
Background technology
One, roasting nozzle is most crucial part in apparatus for baking, and Ladle Furnace Heating And Drying Equipments is the equipment component of continuous casting steel billet after steel mill steel-making, entering pans at molten steel must be heated the pans inwall, and this equipment utilizes burning to be heated pans exactly.In continuous casting installation for casting, play a part more crucial.
Two, Ladle Furnace Heating And Drying Equipments is the device that utilizes fuel gas buring and air-breathing to be heated pans, and specification requirement is heated to 1100 ℃ at the appointed time to the pans inwall from the normal temperature state, thereby reaches the preparation of opening while watering.
Three, apparatus for baking fuel can be divided into: the 1. low-pressure fuel of higher calorific value (combustion gas, oil liquefied gas, coke-stove gas etc.); 2. the fuel under high pressure of higher calorific value (natural gas, oil liquefied gas); 3. the low-pressure fuel of low heating value (coal gas of converter, mixed gas, producer gas etc.).
1) higher calorific value and fuel of lower heating value are two kinds of fuel of different nature.Because the heat gap of latter two generation of burning is large, the channel difference of required caliber, apart from large, so apparatus for baking will be adapted to large flow fuel, also will meet low discharge fuel, and the fuel of simultaneously necessary small-large flow shares.
2) fuel under high pressure and low-pressure fuel are two kinds of fuel that are not easy simultaneously to control, and mainly are how to distribute the amount of combustion air.The fuel under high pressure speed of service is fast in addition, and flame is long, and combustion air requires high; Low-pressure fuel speed is slower, and flame is short, and the flame combustion scope is large, and demand volume is also large.
3) for special fuel of lower heating value (as blast furnace gas).Its characteristics: caloric value is little, and pressure is low, is not easy a little to catch fire, and increase and join ever-burning flame and hyperoxia air.Therefore:
(1) for the fuel under high pressure baking of higher calorific value, need flow less, adopt cyclone type in nozzle structure, 1. heat output of fuel is large, does not need higher fuel; 2. slow down the speed of fuel under high pressure; 3. the cyclone type outlet can be used the combustion flame area more greatly; 4. the required combustion air pressure of fuel under high pressure wants large, and ejection after air carries out fully mixing to combustion gas with reverse whirlwind, to reach best sky combustion proportioning.
(2) low-pressure fuel for higher calorific value toasts.The fuel flow rate higher pressure is large, and nozzle structure adopts diffusion type, and combustion air is with reverse whirlwind, and space gas fully mixes, and the caloric value that reaches the fuel maximum.
(3) for the baking of the low-pressure fuel of low heating value, fuel flow rate is large, and pressure is little, and nozzle structure adopts diffusion type, and fire-retardant Air Reverse is to whirlwind, controls unanimously with (2), but requires gas flow large.
(4), for specific fuel, add oxygen in combustion-supporting gas, to help burning.To fuel of lower heating value more, due to ignition difficulties, need use ever-burning flame, and the outfit combustion air.
(5) generally toast fuel and only have a kind ofly, if two kinds of fuel use have respectively high-pressure gas pipeline, low-pressure fuel gas pipeline and combustion air pipeline in burner, concentrate ejection at the burner mouth respectively, this fuel more is conducive to cured effect.
At present, also do not have a kind of roasting nozzle can be applicable to the fuel under high pressure of higher calorific value, the apparatus for baking of the low-pressure fuel of low heating value.
Summary of the invention
The utility model is the roasting nozzle that the high low heating value of a kind of conticaster and high-low pressure fuel use will be provided, for the fuel under high pressure of higher calorific value, and the apparatus for baking of the low-pressure fuel of low heating value.
The technical solution of the utility model is: the roasting nozzle of the high low heating value of a kind of conticaster and high-low pressure fuel use, comprise nozzle, fuel channel, fuel channel is comprised of high-pressure gas pipeline, low-pressure fuel gas pipeline and combustion air pipeline, nozzle directly is connected with high-pressure gas pipeline, the high-pressure gas pipeline outside arranges the low-pressure fuel gas pipeline, low-pressure fuel gas pipeline outside arranges the combustion air pipeline, and the combustion air in the high-pressure gas in high-pressure gas pipeline, the ducted low-pressure fuel gas of low-pressure fuel gas and combustion air pipeline is concentrated ejection at jet hole respectively.
High-pressure gas is natural gas, and low-pressure fuel gas is coal gas, and combustion air is compressed air.
The beneficial effects of the utility model are:
The utility model is at inner high-pressure gas pipeline, low-pressure fuel gas pipeline, the combustion air pipeline of adopting of burner, and a kind of fuel that can be used alone, also can jointly use by two kinds of fuel, conflux and mix ejection at spout, various energy medium are fully mixed, the energy of performance fuel maximum, thus reach best pans heating effect.This burner can make two kinds of energy medium of different nature, in baking work, can give full play to efficiency, can solve steel mill's energy medium problem.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
The specific embodiment
As shown in Figure 1, the roasting nozzle of the high low heating value of a kind of conticaster and high-low pressure fuel use, comprise nozzle 1, high-pressure gas pipeline 2, low-pressure fuel gas pipeline 3, combustion air pipeline 4.
High-pressure gas is natural gas 5, and low-pressure fuel gas is coal gas 6, and combustion air is compressed air 7.
The utility model is applicable to the fuel under high pressure of higher calorific value, the apparatus for baking of the low-pressure fuel of low heating value, and most critical is roasting nozzle, nozzle structure determines each passage trend, at nozzle, mixes ejection.。Main Function is fully mixed various energy medium, the energy of performance fuel maximum, thus reach best pans heating effect.Remaining pipes is can effectively enter burner in order to coordinate and to control each medium.This burner can make two kinds of energy medium of different nature, in baking work, can give full play to efficiency, can solve steel mill's energy medium problem.
Claims (4)
1. the roasting nozzle of the high low heating value of conticaster and high-low pressure fuel use, comprise nozzle (1), fuel channel, it is characterized in that: described fuel channel is by high-pressure gas pipeline (2), low-pressure fuel gas pipeline (3) and combustion air pipeline (4) form, nozzle (1) directly is connected with high-pressure gas pipeline (2), high-pressure gas pipeline (2) outside arranges low-pressure fuel gas pipeline (3), low-pressure fuel gas pipeline (3) outside arranges combustion air pipeline (4), and the high-pressure gas in high-pressure gas pipeline (2), combustion air in low-pressure fuel gas in low-pressure fuel gas pipeline (3) and combustion air pipeline (4) is concentrated ejection at nozzle (1) mouthful respectively.
2. the roasting nozzle of the high low heating value of conticaster according to claim 1 and high-low pressure fuel use, it is characterized in that: described high-pressure gas is natural gas (5).
3. the roasting nozzle of the high low heating value of conticaster according to claim 1 and high-low pressure fuel use, it is characterized in that: described low-pressure fuel gas is coal gas (6).
4. the roasting nozzle of the high low heating value of conticaster according to claim 1 and high-low pressure fuel use, it is characterized in that: described combustion air is compressed air (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320350006 CN203364131U (en) | 2013-06-18 | 2013-06-18 | Continuous casting machine baking nozzle capable of simultaneously using high-calorific-value high-pressure fuel and low-calorific-value low-pressure fuel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320350006 CN203364131U (en) | 2013-06-18 | 2013-06-18 | Continuous casting machine baking nozzle capable of simultaneously using high-calorific-value high-pressure fuel and low-calorific-value low-pressure fuel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203364131U true CN203364131U (en) | 2013-12-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320350006 Expired - Lifetime CN203364131U (en) | 2013-06-18 | 2013-06-18 | Continuous casting machine baking nozzle capable of simultaneously using high-calorific-value high-pressure fuel and low-calorific-value low-pressure fuel |
Country Status (1)
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| CN (1) | CN203364131U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105570878A (en) * | 2014-10-10 | 2016-05-11 | 五冶集团上海有限公司 | Coke oven device for two types of combustion gas |
| CN108486311A (en) * | 2018-05-25 | 2018-09-04 | 盐城市联鑫钢铁有限公司 | A kind of steel scrap apparatus for baking |
| CN108870394A (en) * | 2018-05-21 | 2018-11-23 | 北京航天石化技术装备工程有限公司 | It is applicable in the half big short flame burner of premix of two kinds of calorific value of fuel gas differences |
| CN109277556A (en) * | 2018-11-12 | 2019-01-29 | 四川德胜集团钒钛有限公司 | Dual-purpose baking of tundish device burner |
-
2013
- 2013-06-18 CN CN 201320350006 patent/CN203364131U/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105570878A (en) * | 2014-10-10 | 2016-05-11 | 五冶集团上海有限公司 | Coke oven device for two types of combustion gas |
| CN105570878B (en) * | 2014-10-10 | 2017-12-29 | 五冶集团上海有限公司 | A kind of heatingup of coke oven battery device for being adapted to two kinds of combustion gas |
| CN108870394A (en) * | 2018-05-21 | 2018-11-23 | 北京航天石化技术装备工程有限公司 | It is applicable in the half big short flame burner of premix of two kinds of calorific value of fuel gas differences |
| CN108486311A (en) * | 2018-05-25 | 2018-09-04 | 盐城市联鑫钢铁有限公司 | A kind of steel scrap apparatus for baking |
| CN109277556A (en) * | 2018-11-12 | 2019-01-29 | 四川德胜集团钒钛有限公司 | Dual-purpose baking of tundish device burner |
| CN109277556B (en) * | 2018-11-12 | 2020-11-13 | 四川德胜集团钒钛有限公司 | Dual-purpose tundish roaster burner |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131225 |
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| CX01 | Expiry of patent term |