CN217082559U - Coke oven gas burner of pulverized coal furnace - Google Patents
Coke oven gas burner of pulverized coal furnace Download PDFInfo
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- CN217082559U CN217082559U CN202220735940.5U CN202220735940U CN217082559U CN 217082559 U CN217082559 U CN 217082559U CN 202220735940 U CN202220735940 U CN 202220735940U CN 217082559 U CN217082559 U CN 217082559U
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- coke oven
- oven gas
- gun
- pulverized coal
- secondary air
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Abstract
The utility model discloses a coke oven gas burner of a pulverized coal furnace, which comprises a coke oven gas gun and a secondary air swirl nozzle; the coke oven gas gun comprises a gun head and a gun barrel, wherein the gun head is provided with a plurality of spray holes; the secondary air cyclone nozzle comprises a shell and a fixed cylinder positioned at the center of the inner side of the shell, a secondary air cyclone is arranged between the shell and the fixed cylinder, and a secondary air connecting part is arranged at the rear side of the shell; and a gun barrel at one side of the gun head of the coke oven gas gun is arranged in the fixed barrel. Use the utility model provides a pulverized coal stove coke oven gas burner can be with the fuel burner replacement that abandonment does not use in the pulverized coal stove overgrate air wind channel for the utility model provides a pulverized coal stove coke oven gas burner mixes the pulverized coal stove with coke oven gas and burns, its modern design, it is convenient to reform transform, excellent in use effect.
Description
Technical Field
The utility model belongs to the technical field of burner equipment, especially, relate to a pulverized coal furnace coke oven gas burner.
Background
At present, coke oven gas, blast furnace gas and converter gas are combined into mixed gas in a power plant of domestic steel enterprises and are input into a full-combustion blast furnace gas boiler to be combusted and generate power. Due to the H in the coke oven gas 2 S content is higher, and H in the coke oven gas of a plurality of steel enterprises 2 The purification of S is still very incomplete, resulting in H in the mixed gas 2 Combustion of S to SO 2 Gas, and simultaneously, because some full-combustion blast furnace gas boilers are not provided with matched desulfurization devices, the flue gas SO in the full-combustion blast furnace gas boilers 2 The content exceeds the standard. At present, the SO in the flue gas is mainly controlled by reducing the combustion amount of the mixed gas on site 2 The concentration, this kind of operation mode not only causes high, the coke gas diffuses, the polluted environment, and the gas furnace load is restricted, influences the power generation production plan.
SUMMERY OF THE UTILITY MODEL
To the technical problem among the above-mentioned background art, the utility model provides a pulverized coal stove coke oven gas burner utilizes the fuel nozzle passageway that has had the pulverized coal stove abandonment, demolishs the fuel burner that the abandonment was not used in the pulverized coal stove overgrate air wind channel and replaces the utility model provides a pulverized coal stove coke oven gas burner separates out the coke oven gas from blast furnace gas and mixes the pulverized coal stove burning, utilizes the existing flue gas desulphurization device of pulverized coal stove to reach the qualified emission of flue gas.
The utility model provides a technical problem's technical scheme as follows:
the utility model relates to a pulverized coal furnace coke oven gas burner, which comprises a coke oven gas gun and a secondary air swirling nozzle; the coke oven gas gun comprises a gun head and a gun barrel, and a plurality of spray holes are formed in the gun head; the secondary air cyclone nozzle comprises a shell and a fixed cylinder positioned at the center of the inner side of the shell, a secondary air cyclone is arranged between the shell and the fixed cylinder, and a secondary air connecting part is arranged at the rear side of the shell; and a gun barrel at one side of the gun head of the coke oven gas gun is arranged in the fixed barrel.
As a further improvement of the technical scheme, the secondary air cyclone consists of a plurality of groups of uniformly arranged spinning disks, and each spinning disk and the axial center line of the fixed cylinder form an angle of 45 degrees.
As a further improvement of the technical scheme, the number of the spinning disks is 8.
As a further improvement of the technical scheme, the gun head is in a circular truncated cone shape, the spray holes are in a long strip shape, and the spray holes are uniformly formed in the outer side of the gun head.
As a further improvement of the technical scheme, the number of the jet holes is 6.
As a further improvement of the technical scheme, a metal hose is communicated with the tail end of the gun barrel.
As a further improvement of the technical scheme, the outer side of the gun barrel is provided with a sleeve through a fixed support, and the front side end part of the sleeve is contacted with the end part of the fixed barrel.
As a further improvement of the technical scheme, the secondary air swirl nozzle is made of heat-resistant stainless steel materials.
As a further improvement of the technical scheme, the rear half section of the gun barrel is made of a common carbon steel material, and the front half section and the gun head are made of a high-temperature-resistant alloy steel material.
When using, will the utility model discloses install the fuel oil burner position that abandonment is not used in pulverized coal stove overgrate air wind channel, its overgrate air connecting portion have with having had the overgrate air passageway to be connected for send into furnace with the whirl mode with overgrate air cyclone with overgrate air (combustion air), and coke oven gas gets into the barrel of coke oven gas gun through metal collapsible tube, and spout into furnace from 6 rectangular form orifices of rifle head and burn, in the combustion process, overgrate air whirl nozzle plays the cooling action to coke oven gas gun simultaneously.
Compared with the prior art, a weight formula hoisting height stopper device, possess following advantage: (1) the utility model relates to a novelty, simple structure is reasonable, and operation safe and reliable can convenient and fast send into pulverized coal furnace with coke oven gas and burn in, has avoided coke oven gas to get into and has burnt blast furnace gas boiler entirely, causes flue gas SO in the gas furnace 2 The furnace is shut down when the content exceeds the standard, thereby avoiding the high coke gas and the coke gas from diffusing and polluting the environment; (2) the utility model changes the direct flow mode of the secondary air of the pulverized coal furnace into the rotational flow mode through the design of the secondary air cyclone, and the secondary air cyclone nozzle is fully mixed and combusted with the coke oven gas, and simultaneously, the secondary air cyclone nozzle plays a role in cooling the gun head and the gun barrel of the coke oven gas gun; (3) the utility model discloses a design of 6 rectangular form orifices of rifle head for coke oven gas can be even send into furnace.
Drawings
FIG. 1: the structure of the utility model is shown schematically;
FIG. 2: the structure schematic diagram of the coke oven gas gun of the utility model;
FIG. 3: the utility model discloses a schematic diagram of the arrangement of each spray hole at the gun head;
FIG. 4: the structure schematic diagram of the secondary air cyclone nozzle in the utility model;
FIG. 5: the cross-sectional schematic view of the secondary air cyclone nozzle in the utility model is shown;
FIG. 6: the side schematic view of the secondary air cyclone nozzle in the utility model;
in the figure: 1. a coke oven gas gun; 2. fixing a bracket; 3. a secondary air cyclone; 4. a sleeve; 5. a secondary air connection part; 6. a housing; 7. a metal hose; 8. spraying a hole; 9. a spinning disk; 10. a fixed cylinder; 11. a secondary air swirling nozzle; 12. a gun head; 13. a gun barrel.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention. Unless defined otherwise, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The terms "upper", "lower", "left", "right", "front", "rear", "inner", "outer" and the like used in the specification and claims of the present disclosure are used only to indicate relative positional relationships, and when the absolute position of a described object is changed, the relative positional relationships are changed accordingly. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. The parts of the present invention not described in detail are the known techniques of those skilled in the art.
As shown in fig. 1-6, the coke oven gas burner of the present invention comprises a coke oven gas gun 1 and a secondary air cyclone nozzle 11; the coke oven gas gun 1 comprises a gun head 12 and a gun barrel 13, wherein the gun head 12 is provided with a plurality of spray holes 8; the secondary air swirl nozzle 11 comprises a shell 6 and a fixed cylinder 10 positioned at the center of the inner side of the shell 6, a secondary air swirler 3 is arranged between the shell 6 and the fixed cylinder 10, and a secondary air connecting part 5 is arranged at the rear side of the shell 6; and a gun barrel 13 on one side of a gun head 12 of the coke oven gas gun 1 is arranged in the fixed barrel 10. When the secondary air cyclone nozzle is used, a waste fuel oil burner in a secondary air duct of a pulverized coal furnace is firstly dismantled, then the coke oven gas burner of the pulverized coal furnace is installed, a secondary air connecting part 5 is connected with an existing secondary air channel and used for sending secondary air (combustion-supporting air) into a hearth in a cyclone mode through a secondary air cyclone, the tail end of a gun barrel 13 is connected with a coke oven gas pipeline through a metal hose 7 and sends coke oven gas into the gun barrel 13 of a coke oven gas gun 1 and the coke oven gas is sprayed into the hearth from a spray hole 8 of the gun barrel to be combusted, and in the combustion process, the secondary air cyclone nozzle 11 simultaneously plays a cooling role in the coke oven gas gun 1.
In this embodiment, for promoting the overgrate air and sending the effect into, overgrate air swirler 3 comprises a plurality of groups spinning disk 9 of even setting, and spinning disk 9 is preferred 8 groups, and each spinning disk 9 is 45 jiaos with the 10 axial centerline of solid fixed cylinder.
In the embodiment, in order to improve the feeding effect of the coke oven gas, the gun head 12 is in a circular truncated cone shape, the spray holes 8 are in a long strip shape, the number of the spray holes is preferably 6, and the spray holes 8 are uniformly arranged on the outer side of the gun head 12.
In the embodiment, the tail end of the gun barrel 13 is communicated with a metal hose 7 for connecting with a coke oven gas pipeline.
In this embodiment, a sleeve 4 for fixing the coke oven gas gun 1 is provided on the outside of the gun barrel 13 via a fixing bracket 2, and the front end of the sleeve 4 is in contact with the end of the fixing barrel 10.
In this embodiment, the secondary air swirl nozzle 11 is made of a heat-resistant stainless steel material; the rear half section of the gun barrel 13 is made of common carbon steel materials, and the front half section and the gun head 12 are made of high-temperature-resistant alloy steel materials.
After a certain steel enterprise adopts the utility model, the pulverized coal furnace can mix and burn 5000m 3 Calculated according to 6000 hours of operation per year, 3000 ten thousand meters of mixed combustion can be carried out per year 3 The standard coal can be saved by about 16175 tons (calculated according to the standard coal heat value of 29.37MJ/kg and the coke gas heat value of 16.2MJ/m 3), and the coal cost is saved: 1937 ten thousand yuan (1200 yuan/ton price of standard coal).
Claims (9)
1. A pulverized coal furnace coke oven gas burner is characterized in that: it comprises a coke oven gas gun (1) and a secondary air cyclone nozzle (11); the coke oven gas gun (1) comprises a gun head (12) and a gun barrel (13), wherein the gun head (12) is provided with a plurality of spray holes (8); the secondary air swirling nozzle (11) comprises a shell (6) and a fixed cylinder (10) positioned at the center of the inner side of the shell (6), a secondary air swirler (3) is arranged between the shell (6) and the fixed cylinder (10), and a secondary air connecting part (5) is arranged at the rear side of the shell (6); and a gun barrel (13) on one side of a gun head (12) of the coke oven gas gun (1) is arranged in the fixed barrel (10).
2. The pulverized coal furnace coke oven gas burner as claimed in claim 1, wherein: the secondary air cyclone (3) is composed of a plurality of groups of spinning disks (9) which are uniformly arranged, and each spinning disk (9) and the axial center line of the fixed cylinder (10) form an angle of 45 degrees.
3. The pulverized coal furnace coke oven gas burner as claimed in claim 2, characterized in that: the number of the rotational flow plates (9) is 8.
4. The pulverized coal furnace coke oven gas burner as claimed in claim 1, wherein: the gun head (12) is in a circular truncated cone shape, the spray holes (8) are in a long strip shape, and the spray holes (8) are uniformly arranged on the outer side of the gun head (12).
5. The pulverized coal furnace coke oven gas burner as claimed in claim 4, wherein: the number of the spray holes (8) is 6.
6. The pulverized coal furnace coke oven gas burner as claimed in claim 1, wherein: the tail end of the gun barrel (13) is communicated with a metal hose (7).
7. The pulverized coal furnace coke oven gas burner as claimed in claim 1, wherein: the outer side of the gun barrel (13) is provided with a sleeve (4) through a fixing support (2), and the front side end part of the sleeve (4) is in contact with the end part of the fixing barrel (10).
8. The pulverized coal furnace coke oven gas burner as claimed in claim 1, wherein: the secondary air cyclone nozzle (11) is made of heat-resistant stainless steel materials.
9. The pulverized coal furnace coke oven gas burner as claimed in claim 1, wherein: the rear half section of the gun barrel (13) is made of common carbon steel materials, and the front half section and the gun head (12) are made of high-temperature-resistant alloy steel materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220735940.5U CN217082559U (en) | 2022-03-30 | 2022-03-30 | Coke oven gas burner of pulverized coal furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220735940.5U CN217082559U (en) | 2022-03-30 | 2022-03-30 | Coke oven gas burner of pulverized coal furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217082559U true CN217082559U (en) | 2022-07-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220735940.5U Active CN217082559U (en) | 2022-03-30 | 2022-03-30 | Coke oven gas burner of pulverized coal furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217082559U (en) |
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2022
- 2022-03-30 CN CN202220735940.5U patent/CN217082559U/en active Active
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