CN201819216U - Air-cooling and premixing type tundish baking burner - Google Patents
Air-cooling and premixing type tundish baking burner Download PDFInfo
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- CN201819216U CN201819216U CN 201020564218 CN201020564218U CN201819216U CN 201819216 U CN201819216 U CN 201819216U CN 201020564218 CN201020564218 CN 201020564218 CN 201020564218 U CN201020564218 U CN 201020564218U CN 201819216 U CN201819216 U CN 201819216U
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Abstract
The utility model discloses an air-cooling and premixing type tundish baking burner, which comprises an air chamber and a gas chamber. The air chamber is separated from the gas chamber, and the air chamber is wrapped with the gas chamber; an air shunt device, a premixing chamber and a burner port are arranged sequentially in the air chamber; the air shunt device is under an air inlet, which is formed on one side of the air chamber; the premixing chamber is positioned at an outlet of the gas chamber; and the burner port is positioned at an outlet of the air chamber. In the air-cooling and premixing type tundish baking burner, air and gas are mixed evenly in the burner port before entering a tundish, and the whole combustion process is basically finished at the burner port, so that the combustion speed is high, the combustion temperature is high, and the combustion is complete. In addition, the complete combustion means that a large amount of high-temperature flue gas is spouted from a burner nozzle at a high speed, and the high-temperature flue gas is then sprayed into the tundish at a high speed, so that the circulation and the heat transmission of the flue gas in the tundish are intensified, the temperature increment of the tundish baking is accelerated, and the heating-up time is shortened.
Description
Technical field
The utility model relates to a kind of air-cooled premixed middle bag baking burner.
Background technology
At present, a lot of steel mill tundish apparatus for baking have all adopted a kind of through type roasting nozzle.But since a variety of causes through type burner in actual moving process in the problem of the following aspects:
1) combustion gas and air mix in advance and cause fuel gases calorific value to reduce, and the tundish baking temperature is low, and stoving time is long, is difficult to reach technological requirement;
2) through type because of combustion gas and air in same Indoor Combustion, high-temperature oxydation causes service life short, burner, burner baffle plate and the easy scaling loss of middle clad (not enough February);
3) combustion instability easily produces tempering and takes off fiery phenomenon;
4) incomplete combustion, the gas consumption amount is big, exists serious tundish bag to burn outward.
Above problem has not only been brought very big adverse effect to production, and has increased gas consumption, strengthened production cost, has reduced the operating rate of middle bag.At the problem of through type roasting nozzle existence and the arts demand of reason and the baking of middle bag, if can make combustion gas and air insulated, premix again, burn then, will make that burning carries out violent and fully, it is mixed with separating in advance again of combustion gas to have reached air from structure, fully burns then.
Summary of the invention
The purpose of this utility model is exactly in order to address the above problem, and provides a kind of air that can make to separate in advance with combustion gas, and the cooling burner mixes again, the air-cooled premixed middle bag baking burner of sufficient combustion.
For reaching above purpose, the technical solution adopted in the utility model is:
A kind of air-cooled premixed middle bag baking burner, it comprises air chamber and fuel chamber, it is characterized in that, air chamber separates with fuel chamber, air chamber parcel fuel chamber; Be provided with the air part flow arrangement below the air chamber inlet, the air part flow arrangement is around fuel chamber; Be provided with the premixer between the outlet of fuel chamber and air chamber, the below of premixer is provided with the burner mouth, and the burner mouth is positioned at the exit of air chamber.
Described air part flow arrangement is spiral air diverter.
The material of described air chamber and fuel chamber's exit housing is heat-resistance stainless steel, on the inwall of the both sides, exit of air chamber also with the aluminium carbon zirconium mass refractory tube.
Principle: air chamber, the fuel chamber of air-cooled premixed middle bag baking burner isolate, and at the air chamber middle part spiral air diverter are set, and impel forced air to press down evenly.Coal gas and air mix with the form that crosses mutually at 10cm place, burner bottom, therefore empty, coal gas just mixed at the burner mouth before entering tundish, and whole combustion process is just finished substantially at burner mouth place, so burning velocity is fast, ignition temperature height, burning are fully.Because coal gas and air mix fully, thereby air coefficient is little, generally speaking, (1.05,1.1) can reach the purpose of completing combustion in the scope, and air coefficient is little, ignition temperature is just high, and the high-temperature region is more concentrated, in addition, burning fully just means that the high-temperature flue gas amount is big, the speed height that flue gas sprays in the burner, high-temperature flue gas sprays in the tundish with very high speed, has just strengthened flue gas recirculation and heat transfer in the tundish bag, thereby accelerated tundish baking programming rate, shortened heat time heating time.Air chamber be wrapped in gas chamber can directly cool off gas chamber and on turn over the high-temperature oxydation of flame to burner.
The utlity model has following advantage:
The average fuel saving of the air-cooled premixed formula apparatus for baking of ◇ is more than 30%;
The roasting bag of ◇ temperature: 1100～1250 ℃, satisfy the baking process requirement;
Temperature is even in the ◇ bag, has a narrow range of temperature: Bao Kou, the bag end temperature difference＜50 ℃;
◇ toasts speed: 2-4 hours, toast 600 ℃ to 1100 ℃ (air-cooled premixed);
◇ sky, gas preheating temperature: 300～1000 ℃;
◇ smog discharge temperature :≤160 ℃ (air-cooled premixed roaster);
The ◇ burner life-span prolongs more than ten times.
Description of drawings
Fig. 1 structural representation of the present utility model;
Wherein, 1 air chamber, 2 fuel chamber; 3 air diverters; 4 premixers; 5 burner mouths; 6 air intakes; 7 aluminium carbon zirconium mass refractory tubes; 8 heat-resistance stainless steels.
The specific embodiment
The utility model is described in further detail below in conjunction with drawings and Examples:
As shown in Figure 1, a kind of air-cooled premixed middle bag baking burner, it comprises air chamber 1 and fuel chamber 2, air chamber 1 separates with fuel chamber 2, air chamber 1 parcel fuel chamber 2; Be provided with the air part flow arrangement below air chamber 1 inlet, the air part flow arrangement is around fuel chamber 2; Be provided with premixer 4 between the outlet of fuel chamber 2 and air chamber 1, the below of premixer 4 is provided with burner mouth 5, and burner mouth 5 is positioned at the exit of air chamber 1.Described air part flow arrangement is spiral air diverter 3.The material of air chamber 1 and fuel chamber's 2 exit housings is heat-resistance stainless steel 8, on the inwall of the both sides, exit of air chamber 1 also with aluminium carbon zirconium mass refractory tube 7.
Claims (3)
1. an air-cooled premixed middle bag toasts burner, and it comprises air chamber and fuel chamber, it is characterized in that, air chamber separates with fuel chamber, air chamber parcel fuel chamber; Be provided with the air part flow arrangement below the air chamber inlet, the air part flow arrangement is around fuel chamber; Be provided with the premixer between the outlet of fuel chamber and air chamber, the below of premixer is provided with the burner mouth, and the burner mouth is positioned at the exit of air chamber.
2. a kind of air-cooled premixed middle bag baking burner as claimed in claim 1 is characterized in that described air part flow arrangement is spiral air diverter.
3. as claimed in claim 1 a kind of air-cooled premixed in bag baking burner, it is characterized in that the material of described air chamber and fuel chamber's exit housing is heat-resistance stainless steel, on the inwall of the both sides, exit of air chamber also with the aluminium carbon zirconium mass refractory tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020564218 CN201819216U (en) | 2010-10-18 | 2010-10-18 | Air-cooling and premixing type tundish baking burner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201020564218 CN201819216U (en) | 2010-10-18 | 2010-10-18 | Air-cooling and premixing type tundish baking burner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201819216U true CN201819216U (en) | 2011-05-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201020564218 Expired - Fee Related CN201819216U (en) | 2010-10-18 | 2010-10-18 | Air-cooling and premixing type tundish baking burner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201819216U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110360551A (en) * | 2018-04-09 | 2019-10-22 | 江苏弗雷姆环境科技有限公司 | Industrial combustion gas is from heating energy-saving burner |
-
2010
- 2010-10-18 CN CN 201020564218 patent/CN201819216U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110360551A (en) * | 2018-04-09 | 2019-10-22 | 江苏弗雷姆环境科技有限公司 | Industrial combustion gas is from heating energy-saving burner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110504 Termination date: 20131018 |