CN221444258U - Air single heat accumulation combustor with included angle type coke oven gas semi-premixing structure - Google Patents
Air single heat accumulation combustor with included angle type coke oven gas semi-premixing structure Download PDFInfo
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- CN221444258U CN221444258U CN202323214593.5U CN202323214593U CN221444258U CN 221444258 U CN221444258 U CN 221444258U CN 202323214593 U CN202323214593 U CN 202323214593U CN 221444258 U CN221444258 U CN 221444258U
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- air
- air channel
- semi
- box body
- coke oven
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- 239000000571 coke Substances 0.000 title claims abstract description 22
- 238000009825 accumulation Methods 0.000 title claims description 13
- 239000007921 spray Substances 0.000 claims abstract description 35
- 238000005338 heat storage Methods 0.000 claims abstract description 27
- 230000007704 transition Effects 0.000 claims description 11
- 239000011810 insulating material Substances 0.000 claims 1
- 229910000831 Steel Inorganic materials 0.000 abstract description 11
- 239000010959 steel Substances 0.000 abstract description 11
- 230000007547 defect Effects 0.000 abstract description 4
- 238000005265 energy consumption Methods 0.000 abstract description 4
- 238000010438 heat treatment Methods 0.000 abstract description 3
- 238000004134 energy conservation Methods 0.000 abstract description 2
- 238000005096 rolling process Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 31
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 16
- 229910052742 iron Inorganic materials 0.000 description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000003034 coal gas Substances 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000004321 preservation Methods 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 229920000742 Cotton Polymers 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000012774 insulation material Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Landscapes
- Gas Burners (AREA)
Abstract
The utility model relates to the technical field of steel rolling heating furnaces, in particular to an air single heat storage burner with an included angle type coke oven gas semi-premixing structure, which comprises a first box body and a second box body which are connected at an angle, wherein the outer end of the second box body is connected with a burner block through a flange plate; an air regenerator is arranged in the first box body, and a gas spray gun, a first air channel and a second air channel are arranged in the second box body; the bottom end of the first air channel is communicated with a first air nozzle arranged on the flange plate; the bottom end of the second air channel is communicated with a second air nozzle arranged on the flange plate; the bottom end of the first air channel is intersected with the extension line of the bottom end of the second air channel to form an intersection point, and the extension line of the spray gun nozzle is positioned on the intersection point. The device can solve the defects of low baking temperature, long time, high energy consumption and the like of the converter gas with medium heat value, can also solve the problems of fragile heat accumulator and fragile burner block, and achieves the aims of energy conservation, consumption reduction, emission reduction and safe use.
Description
Technical Field
The utility model relates to the technical field of steel rolling heating furnaces, in particular to an air single heat storage burner with an included angle type coke oven gas semi-premixing structure.
Background
In the production of steel (iron), steel (iron) ladles are used in steel plants, ironworks, foundry plants for carrying out operations on steel (iron) water in front of open-hearth furnaces, electric furnaces or converters, which must be baked as necessary before the production of the steel (iron) water is completed or carried out. The baking device has various modes and various fuels, wherein the baking mode of the burner direct combustion (namely, the air and the coal gas are not preheated), the blast furnace (or converter) coal gas and the air double heat storage and the air single heat storage combustion mode of the converter (or coke oven, natural gas and the like) coal gas are common use technologies of the domestic steel (iron) water drum baking device at present.
The coke oven gas contains more than 50% of H2, has smaller density (0.4-0.5 kg/Nm < 3 >), has extremely high combustion speed and relatively short flame, often causes that the flame cannot directly reach the bottom of the ladle, and then causes uneven upper and lower baking temperatures of the ladle, and generally adopts the solution measures to prolong the baking time, even further adopts a horizontal ladle baking mode to supplement the baking, thus inevitably causing the defects of long baking time, high energy consumption and the like.
In addition, the direct burning mode of the burner is adopted to bake (i.e. air and converter gas are not preheated) necessarily causes the defects of low baking temperature, long time, high energy consumption and the like, and the heat accumulating burning mode is generally adopted in a vertical or horizontal right-angle installation mode when a heat accumulating burner arranged on a ladle cover of the existing vertical steel (iron) water drum is connected with the ladle cover. However, under the structural form, when the ladle cover rotates (0-90 degrees) through the rotating device, the heat accumulator in the heat accumulation chamber frequently slides up and down due to the rotation of the ladle cover, so that the ladle cover and the burner block are damaged due to the self impact damage, and the service life of equipment is influenced.
Therefore, a new solution is needed to solve the above technical problems.
Disclosure of utility model
The utility model aims to solve the problems of the prior art, and provides an air single heat storage burner with an included angle type coke oven gas semi-premixing structure, which is used for solving the technical problems that the service life of equipment is influenced by self impact damage caused by frequent up-down sliding of a heat storage body in a heat storage chamber due to the rotation of a cover, the baking time is long and the up-down temperature is uneven in the prior art.
The above purpose is realized by the following technical scheme:
The air single heat storage burner comprises a first box body and a second box body which are connected at an angle, wherein the outer end of the second box body is connected with a burner block through a flange plate; the first box body is internally provided with an air regenerator, and the second box body is internally provided with a gas spray gun, and a first air channel and a second air channel which are symmetrically arranged by the gas spray gun;
The top end of the first air channel is communicated with the air regenerator, and the bottom end of the first air channel is communicated with a first air nozzle arranged on the flange plate;
The top end of the second air channel is communicated with the air regenerator, and the bottom end of the second air channel is communicated with a second air nozzle arranged on the flange plate;
The gas spray gun is connected with a spray gun nozzle arranged on the flange plate;
The bottom end of the first air channel is intersected with an extension line of the bottom end of the second air channel to form an intersection point, and the extension line of the spray gun nozzle is positioned on the intersection point;
The burner block comprises a semi-premixing cavity and a flame nozzle which are communicated with each other, and the first air nozzle, the second air nozzle and the spray gun nozzle are all communicated with the semi-premixing cavity.
Further, an included angle between the first box body and the second box body is 90-170 degrees.
Further, the semi-premix chamber is trumpet-shaped with the wide mouth end facing upward and the narrow mouth end facing downward and communicating with the flame ports.
Further, the flame ports are cylindrical.
Further, the first air nozzle and the second air nozzle are waist-shaped grooves.
Further, the number of the spray gun nozzles is 2, the number of the gas spray guns is 2 correspondingly, and the outer ends of the gas spray guns are connected with the gas pipeline.
Further, an air inlet is formed in the rear end of the air regenerator, and the air inlet is located on the outer side of the first box body.
Further, a heat storage transition chamber is arranged at the front end of the air heat storage chamber, and the top end of the first air channel and the top end of the second air channel are respectively communicated with the heat storage transition chamber.
Further, the heat storage transition chamber is located in a box cavity formed after the first box body is connected with the second box body.
Further, the box cavity is filled with heat insulation materials.
Advantageous effects
According to the air single heat accumulating burner with the included angle type coke oven gas semi-premixing structure, the air heat accumulating chamber and the gas spray gun are arranged in the box body with the included angle, so that a certain included angle is formed between the whole box body positioned at the outer side of the converter ladle cover and the burner block positioned at the inner side of the ladle cover, and various problems that the heat accumulating body is fragile, the service life of equipment with the burner block vulnerable to damage is short and the like can be solved; the first air channel and the second air channel with the inclination are arranged, so that the extension lines of the bottom ends of the first air channel and the second air channel are intersected to form an intersection point, and the extension lines of the spray gun nozzles are positioned at the intersection point, so that the defects of low baking temperature, long time, high energy consumption and the like of the converter gas with the medium calorific value can be effectively solved; the device also achieves the purposes of energy conservation, consumption reduction, emission reduction and safe use.
Drawings
FIG. 1 is a schematic structural view of an air single heat accumulation burner with an included angle type coke oven gas semi-premixing structure;
FIG. 2 is a schematic diagram of a flange plate structure in an air single heat accumulation burner with an included angle type coke oven gas semi-premixing structure;
FIG. 3 is a schematic working diagram of an air single heat accumulation burner with an included angle type coke oven gas semi-premixing structure.
The graphic indicia:
1-first box, 2-second box, 3-ring flange, 4-burner block, 5-air regenerator, 6-gas spray gun, 7-first air channel, 8-second air channel, 9-first air spout, 10-second air spout, 11-spray gun nozzle, 12-semi-premix cavity, 13-flame spout, 14-air inlet, 15-heat accumulation transition chamber, 16-box cavity.
Detailed Description
The utility model is described in further detail below with reference to the figures and examples.
As shown in fig. 1, an air single heat storage burner with an included angle type coke oven gas semi-premixing structure comprises a first box body 1 and a second box body 2 which are connected at an angle, wherein the outer end of the second box body 2 is connected with a burner block 4 through a flange 3; an air regenerator 5 is arranged in the first box body 1, and air entering the air regenerator 5 can be preheated; a gas spray gun 6 (the outer end of the gas spray gun 6 is connected with a gas pipeline), and a first air channel 7 and a second air channel 8 which are symmetrically arranged with the gas spray gun 6 are arranged in the second box body 2;
The top end of the first air channel 7 is communicated with the air regenerator 5, and the bottom end of the first air channel 7 is communicated with a first air nozzle 9 arranged on the flange plate 3;
The top end of the second air channel 8 is communicated with the air regenerator 5, and the bottom end of the second air channel 8 is communicated with a second air nozzle 10 arranged on the flange plate 3;
the gas spray gun 6 is connected with a spray gun nozzle 11 arranged on the flange plate 3;
The bottom end of the first air channel 7 is intersected with the extension line of the bottom end of the second air channel 8 to form an intersection point, and the extension line of the spray gun nozzle 11 is positioned on the intersection point;
The burner block 4 comprises a semi-premix chamber 12 and flame ports 13 in communication with each other, the first air ports 9, the second air ports 10, and the lance nozzles 11 being in communication with the semi-premix chamber 12.
An air inlet 14 is arranged at the rear end of the air regenerator 5, and the air inlet 14 is positioned at the outer side of the first box body 1 and can be connected with an external air conveying pipe.
In this embodiment, the included angle between the first case 1 and the second case 2 is 90 ° to 170 °.
Specifically, the structure enables the flame nozzle 13 to be connected with the air regenerator 5 at an included angle, the heat storage box body and the flame nozzle are arranged at an included angle of 90-170 degrees, when the heat storage box body is arranged on a ladle cover baked by a vertical steel (iron) ladle, when the ladle cover rotates for 0-90 degrees through a rotating device, a heat storage body in the heat storage box body is not easy to slide up and down greatly due to the rotation of the ladle cover, so that the heat storage body is not easy to impact and damage; meanwhile, the heat accumulator and the burner block 4 are arranged separately, so that the damage to the ladle cover or the burner block 4 caused by the impact of the up-and-down sliding of the heat accumulator to the ladle cover and the burner block 4 is avoided.
As shown in fig. 1, the semi-premix chamber 12 in this embodiment is in a horn shape, with its wide mouth end facing upward and its narrow mouth end facing downward and communicating with the flame ports 13; and the flame ports 13 are arranged in a cylindrical shape.
Specifically, the high-temperature air after heat storage by the heat storage technology is sprayed out from the included angle between the first air nozzle and the second air nozzle, and is partially combusted with converter gas sprayed out by the gas spray gun 6 in the semi-premixing cavity 12 to generate high temperature and rapidly expand, and finally, when the high-temperature air is sprayed into a steel (iron) water drum (converter) through the flame nozzle 13, the high-temperature air is fully mixed and combusted in the drum, so that high-temperature and high-speed air flow can be generated to meet the requirement of uniformity of the upper temperature and the lower temperature of baking.
As shown in fig. 2, in this embodiment, the first air nozzle 9 and the second air nozzle 10 are waist-shaped grooves, and the shapes of the first air channel and the second air channel are consistent with the shapes of the first air nozzle 9 and the second air nozzle 10, so that the input preheated air and the converter gas sprayed by the gas spray gun 6 can be fully mixed and combusted.
As shown in fig. 3, as a specific embodiment of the present solution, there are 2 spray gun nozzles 11 in this embodiment, and correspondingly, there are 2 gas spray guns 6, so that the pre-heating air and the converter gas sprayed from the gas spray guns 6 can be further promoted to be fully mixed and combusted.
As a specific embodiment of the connection between the first casing 1 and the second casing 2 in this embodiment, a heat storage transition chamber 15 is disposed at the front end of the air regenerator 5, and the top end of the first air channel 7 and the top end of the second air channel 8 are respectively communicated with the heat storage transition chamber 15.
The heat accumulation transition chamber 15 facilitates the connection of the first air passage 7 with the included angle between the second air passage 8 and the air regenerator 5. The heat storage transition chamber 15 is located in a box chamber 16 formed after the first box 1 and the second box 2 are connected.
In order to further promote the heat preservation effect of the air temperature in the air regenerator 5, the box chamber 16 is filled with a heat preservation material, preferably heat preservation cotton.
While the utility model has been described with respect to the preferred embodiments, it is to be understood that the utility model is not limited thereto, but is capable of modification and substitution within the spirit and scope of the utility model as will be apparent to those skilled in the art. Therefore, the protection scope of the present utility model should be subject to the claims.
Claims (10)
1. The air single heat accumulation combustor of the semi-premixing structure of the included angle type coke oven gas is characterized by comprising a first box body (1) and a second box body (2) which are connected at an angle, wherein the outer end of the second box body (2) is connected with a burner block (4) through a flange plate (3); an air regenerator (5) is arranged in the first box body (1), and a gas spray gun (6), a first air channel (7) and a second air channel (8) which are symmetrically arranged by the gas spray gun (6) are arranged in the second box body (2);
The top end of the first air channel (7) is communicated with the air regenerator (5), and the bottom end of the first air channel (7) is communicated with a first air nozzle (9) arranged on the flange plate (3);
The top end of the second air channel (8) is communicated with the air regenerator (5), and the bottom end of the second air channel (8) is communicated with a second air nozzle (10) arranged on the flange plate (3);
The gas spray gun (6) is connected with a spray gun nozzle (11) arranged on the flange plate (3);
The bottom end of the first air channel (7) is intersected with an extension line of the bottom end of the second air channel (8) to form an intersection point, and the extension line of the spray gun nozzle (11) is positioned on the intersection point;
The burner block (4) comprises a semi-premixing cavity (12) and flame ports (13) which are communicated with each other, and the first air ports (9), the second air ports (10) and the spray gun nozzles (11) are all communicated with the semi-premixing cavity (12).
2. An air single heat accumulation burner of an included angle type coke oven gas semi-premixing structure according to claim 1, characterized in that the included angle between the first case (1) and the second case (2) is 90-170 °.
3. An air single heat accumulating burner of an angled coke oven gas semi-premix structure according to claim 1, characterized in that the semi-premix chamber (12) is horn-shaped with the wide mouth end facing upwards and the narrow mouth end facing downwards and communicating with the flame ports (13).
4. An air single heat accumulating burner of an angled coke oven gas semi-premix structure according to claim 3, characterized in that the flame ports (13) are cylindrical.
5. An air single heat accumulation burner of an angled coke oven gas semi-premix structure as in claim 1, characterized in that the first air jets (9) and the second air jets (10) are both waist shaped slots.
6. An air single heat accumulating burner with an included angle type coke oven gas semi-premixing structure according to claim 5, characterized in that the number of the spray gun nozzles (11) is 2, the number of the gas spray guns (6) is 2 correspondingly, and the outer end of the gas spray gun (6) is connected with a gas pipeline.
7. An air single heat accumulation burner with an included angle type coke oven gas semi-premixing structure according to claim 1, characterized in that the rear end of the air heat accumulation chamber (5) is provided with an air inlet (14), and the air inlet (14) is positioned at the outer side of the first box body (1).
8. An air single heat accumulating burner with an included angle type coke oven gas semi-premixing structure according to claim 1 or 7,
The heat storage device is characterized in that a heat storage transition chamber (15) is arranged at the front end of the air heat storage chamber (5), and the top end of the first air channel (7) and the top end of the second air channel (8) are respectively communicated with the heat storage transition chamber (15).
9. Air single heat accumulating burner with an included angle type coke oven gas semi-premixing structure according to claim 8, characterized in that the heat accumulating transition chamber (15) is located in a box cavity (16) formed after the first box (1) and the second box (2) are connected.
10. Air single heat accumulating burner with an included angle type coke oven gas semi-premixing structure according to claim 9, characterized in that the box chamber (16) is filled with heat insulating material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323214593.5U CN221444258U (en) | 2023-11-28 | 2023-11-28 | Air single heat accumulation combustor with included angle type coke oven gas semi-premixing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202323214593.5U CN221444258U (en) | 2023-11-28 | 2023-11-28 | Air single heat accumulation combustor with included angle type coke oven gas semi-premixing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN221444258U true CN221444258U (en) | 2024-07-30 |
Family
ID=92063195
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202323214593.5U Active CN221444258U (en) | 2023-11-28 | 2023-11-28 | Air single heat accumulation combustor with included angle type coke oven gas semi-premixing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN221444258U (en) |
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2023
- 2023-11-28 CN CN202323214593.5U patent/CN221444258U/en active Active
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