CN212205666U

CN212205666U - Multifunctional coherent oxygen lance module

Info

Publication number: CN212205666U
Application number: CN202020576823.XU
Authority: CN
Inventors: 顾子成
Original assignee: Sinoda Industry Co ltd
Current assignee: Sinoda Industry Co ltd
Priority date: 2020-04-17
Filing date: 2020-04-17
Publication date: 2020-12-22
Anticipated expiration: 2030-04-17

Abstract

The utility model belongs to the technical field of oxygen rifle module tied in a bundle, especially be multi-functional oxygen rifle module tied in a bundle, including overcoat copper head, overcoat outer tube, overcoat well pipe and overcoat inner tube, the exterior wall bottom of overcoat outer tube is provided with hangs the cinder board, and the inside of overcoat inner tube is provided with endotheca outer tube, endotheca well pipe and endotheca inner tube respectively, and the interior table wall of endotheca inner tube is provided with the gas pipe. The utility model can effectively remove the copper water tank with higher cost and large volume by adding the parts such as the outer sleeve copper head, the outer sleeve outer pipe, the outer sleeve middle pipe, the outer sleeve inner pipe and the like, so that the furnace wall coherent oxygen lance is set into a double water-cooling type and each water-cooling split type, thereby facilitating the disassembly and the replacement of a user; by additionally arranging the parts such as the fourth flange, the epoxy connecting pipe, the epoxy flange and the first gas flange, the disassembly and the replacement of each main body component can be realized, so that the distance of the oxygen lance in the electric furnace can be increased when the coherent oxygen lance is used, the distance between the spray gun and the molten pool is shortened, and the effective distance of the injection gas flow of the oxygen lance is increased.

Description

Multifunctional coherent oxygen lance module

Technical Field

The utility model relates to a oxygen rifle module technical field specifically is multi-functional oxygen rifle module tied in a bundle.

Background

When the coherent oxygen lance is manufactured, the smelting cost is reduced, the quality of molten steel is improved, and the labor intensity of workers is reduced; the coherent oxygen lance is based on the principle that the outer layer surrounding accompanying flow is added around the traditional oxygen lance, so that the expansion and the attenuation of the central supersonic jet flow are smaller, and the supersonic jet flow is longer. The penetration depth and the stirring strength of the oxygen jet flow to a molten pool are improved, and simultaneously, because the attenuation of the jet flow speed is delayed, the converting lance position of the oxygen lance can be improved, the impact depth of the jet flow to molten steel is not influenced, and the service life of a nozzle of the oxygen lance is prolonged. The furnace wall coherent oxygen lance mainly has the functions of strengthening electric furnace smelting, shortening smelting time, reducing smelting cost, improving molten steel quality, reducing labor intensity of workers and improving the automation level of electric furnace smelting; along with the popularization of the ultrahigh-power electric furnace, the steel mill has higher and higher requirements on auxiliary smelting equipment, the temperature rise speed in the electric furnace is accelerated, the smelting time is shortened, the use cost of the equipment is reduced, the daily maintenance cost of the equipment is reduced, the safety performance of the equipment is also higher and higher, and the multifunctional bundling gun module is provided. The multifunctional coherent oxygen lance is not a traditional coherent oxygen lance, the traditional coherent oxygen lance only adds surrounding oxygen on the outer layer of main oxygen and is the simplest integrated oxygen lance, the former 20-ton and 30-tonnage small electric furnace body has a very small diameter and can not be detached, a copper head is easy to damage, once the copper head is damaged, the copper head needs to be integrally replaced, the consumption is high, the copper head only can chemically react with gas in an electric furnace during use, and no flame beam can be seen by naked eyes. The small electric furnaces of 20 tons and 30 tons are not new at home at present due to high energy consumption. The multifunctional coherent oxygen lance is an ultrahigh-power coherent oxygen lance with an inner layer of main oxygen, a middle layer of epoxy and an outer layer of fuel gas, when the multifunctional coherent oxygen lance is used, the fuel gas and the epoxy generate chemical reaction to generate flame beams, the flame beams can extend into an electric furnace from a spray hole of the coherent oxygen lance for a distance of 1-1.5 meters and then can be diffused, the diameter of a furnace body of an electric furnace with more than 50 tons, especially an electric furnace with more than 100 tons, is large, and the traditional coherent oxygen lance can become a chicken rib and cannot be used. The addition of the fuel gas can ensure that the combustion in the furnace is more violent, the temperature rise is faster and the smelting time is shorter. The module is mainly developed by integrating a copper water tank and an ultrahigh-power coherent oxygen lance, the module can extend into an electric furnace more, so that the flame beam of 1-1.5 meters is added to the oxygen lance, the position of the flame beam can reach 1.5-2 meters, all main components can be disassembled and replaced, the service life is prolonged, and the use cost is reduced.

The existing multifunctional coherent oxygen lance module has the following problems:

1. a furnace wall oxygen lance for a steelmaking electric furnace is generally fixed in a copper water tank, a rectangular large hole needs to be dug in a furnace wall water cooling plate during installation of the copper water tank, and the copper water tank is placed in the large hole and fixed; in order to have enough space to install the furnace wall oxygen lance, the volume of the copper water tank is large, the cost of raw materials is high, in addition, when the furnace wall oxygen lance is used, the surface area is large, the furnace wall oxygen lance is very easy to corrode by molten steel and be crushed by bulk furnace burden, once one point is damaged, the copper water tank cannot be used continuously, the furnace wall oxygen lance cannot be used continuously, the continuity of the steelmaking process is influenced, and the subsequent maintenance cost is also high.

2. The copper water tank is restrained by the furnace wall of the electric furnace, the condition in the furnace and the oxygen lance on the furnace wall, the copper water tank cannot go deep into the electric furnace too much, the oxygen lance cannot go deep into the electric furnace too much under the influence of the restriction, the air flow sprayed by the oxygen lance attenuates along with the distance, and the effective utilization rate is reduced.

SUMMERY OF THE UTILITY MODEL

The utility model provides a not enough to prior art, the utility model provides a multi-functional oxygen rifle module tied in a bundle, it is great to have solved the surface area, receive molten steel erosion very easily and pound with the pressure that receives the bold furnace charge, in case there is a little present damage, the copper water tank will unable continuation use, the oven oxygen rifle also can't continue to use, influence the problem of the continuity of steelmaking process, furthermore, the copper water tank receives the electric stove oven, the restraint of the condition in the stove and oven oxygen rifle, too many in can't deepening the electric stove, too many in this influence oxygen rifle also can not the electric stove, the problem of oxygen rifle spun air current along with the distance decay.

In order to achieve the above object, the utility model provides a following technical scheme: the multifunctional coherent oxygen lance module comprises an outer sleeve copper head, an outer sleeve pipe, an outer sleeve middle pipe and an outer sleeve inner pipe, wherein a slag hanging plate is arranged at the bottom end of the outer surface wall of the outer sleeve pipe, the inner sleeve middle pipe and the inner sleeve inner pipe are respectively arranged inside the outer sleeve inner pipe, a fuel gas pipe is arranged on the inner surface wall of the inner sleeve inner pipe, a main oxygen pipe is arranged on the inner surface wall of the fuel gas pipe, an outer pipe connecting pipe is arranged at one end of the outer sleeve outer pipe, which is far away from the outer sleeve copper head, a first flange is arranged at one end of the outer pipe connecting pipe, outer surface walls of the outer pipe connecting pipe are respectively and symmetrically provided with outer sleeve water inlet and outer sleeve water return, an installation plate is arranged at the top end of the outer surface wall of the outer sleeve outer pipe, a second flange is arranged at one end, a third flange is arranged at one end, away from the second flange, of the inner sleeve backwater connecting pipe, an inner sleeve water inlet connecting pipe is arranged at one end of the third flange, a fourth flange is arranged at one end of the inner sleeve water inlet connecting pipe, an epoxy connecting pipe is arranged at one end of the fourth flange, an epoxy inlet is arranged on one side of the outer wall of the epoxy connecting pipe, an epoxy flange is arranged at one end of the epoxy connecting pipe, a gas first flange is arranged at one end, away from the epoxy connecting pipe, of the epoxy flange, a gas connecting pipe is arranged at one end of the gas first flange, a gas inlet is arranged on one side of the outer wall of the gas connecting pipe, a gas second flange is arranged at one end of the gas connecting pipe, a main oxygen flange is arranged at one end of the main oxygen flange, and movable joint bolts are arranged inside the gas second flange, the main oxygen flange, the epoxy flange and the gas, and an eyelet bolt fixing plate and an eyelet bolt fixing pin shaft are respectively arranged in the eyelet bolt.

As an optimal technical scheme of the utility model, the junction is provided with first sealed the pad respectively between epoxy flange and the first flange of gas, the junction is provided with the sealed pad of second respectively between gas second flange and the main oxygen flange, the shape of first sealed pad is the same with the sealed shape of pad of second.

As a preferred technical scheme of the utility model, the one end of endotheca inner tube is provided with endotheca copper head, the shape of endotheca copper head is the cylinder structure.

As an optimal technical scheme of the utility model, the inside one end of gas pipe is provided with the gas nozzle, the shape of gas nozzle is the cylinder structure.

As an optimized technical proposal of the utility model, one end of the inner surface wall of the main oxygen pipe is provided with a main oxygen nozzle, and the shape of the main oxygen nozzle is a cylindrical structure.

As an optimal technical scheme of the utility model, the shape of overcoat copperhead, overcoat outer tube, overcoat well pipe, overcoat inner tube, endotheca outer tube, endotheca well pipe, endotheca inner tube, gas pipe, main oxygen pipe, outer tube takeover and first flange is the cylinder structure, the length that the outer tube was taken over is less than the length of overcoat outer tube.

As an optimal technical scheme of the utility model, the quantity of gas second flange and main oxygen flange is a set of, the quantity of eye bolt, eye bolt fixed plate and eye bolt fixation round pin axle and the quantity phase-match of gas second flange and main oxygen flange, the quantity of the first flange of epoxy flange and gas is a set of, and the same structure with gas second flange and main oxygen flange adopts eye bolt to connect.

As an optimal technical scheme of the utility model, the inside of mounting panel is provided with the mounting hole, the shape of mounting hole is circular, the quantity of mounting hole is four groups.

Compared with the prior art, the utility model provides a multi-functional oxygen rifle module tied in a bundle possesses following beneficial effect:

1. this multi-functional oxygen rifle module tied in a bundle, through addding the overcoat copper head, the overcoat outer tube, overcoat well pipe, the overcoat inner tube, the endotheca outer tube, the endotheca well pipe, the endotheca inner tube, the gas pipe, main oxygen pipe, the higher bulky copper water tank of cost can effectively be got rid of to outer tube takeover and first flange, make to set up the oven oxygen rifle tied in a bundle into two water-cooled and each water-cooling components of a whole that can function independently, so that the person of facilitating the use dismantles and changes, the module of the inside components of a whole that can function independently of oxygen rifle tied in a bundle also is convenient for dismantle and change simultaneously.

2. This multi-functional oxygen rifle module tied in a bundle, through addding parts such as fourth flange, epoxy takeover, epoxy flange, the first flange of gas, can realize dismantling and changing each main part subassembly for when oxygen rifle tied in a bundle uses, the distance that can multiplicable oxygen rifle is dark to going into the electric furnace, shortens the distance between spray gun and the molten bath, increases the effective distance of oxygen rifle jetting air current, and in the refining stage, the copper head submergence has stopped the phenomenon of splash and electric furnace smelting atmosphere power dispersion from essence in the foam slag layer, also can reduce the risk that the brickwork struck sparks.

Drawings

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a plan view of the present invention;

FIG. 3 is an internal cross-sectional view of the present invention;

fig. 4 is a top view of the present invention;

FIG. 5 is an enlarged view of part A of the present invention;

fig. 6 is a side view of the present invention.

In the figure: 1. sheathing a copper head; 2. sleeving an outer pipe; 3. sleeving a middle pipe; 4. sheathing an inner pipe; 5. hanging a slag plate; 6. an outer sleeve is sleeved; 7. sleeving a middle pipe; 8. an inner tube is sleeved inside; 9. a gas pipe; 10. a main oxygen pipe; 11. an outer pipe connecting pipe; 12. a first flange; 13. water is fed into the jacket; 14. jacket backwater; 15. mounting a plate; 16. a second flange; 17. water returning of the inner sleeve; 18. water is fed into the inner sleeve; 19. an epoxy inlet; 20. an inner sleeve water return connection pipe; 21. a third flange; 22. the inner sleeve is provided with a water inlet connecting pipe; 23. a fourth flange; 24. a gas inlet; 25. a primary oxygen inlet; 26. epoxy pipe connection; 27. an epoxy flange; 28. a gas first flange; 29. a gas connecting pipe; 30. a gas second flange; 31. a primary oxygen flange; 32. an eye bolt; 33. a swing bolt fixing plate; 34. the pin shaft is fixed by the movable joint bolt; 35. a first gasket; 36. a second gasket; 37. internally sleeving a copper head; 38. a gas nozzle; 39. a primary oxygen nozzle.

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.

Referring to fig. 1-6, in the present embodiment: a multifunctional coherent oxygen lance module comprises an outer sleeve copper head 1, an outer sleeve pipe 2, an outer sleeve middle pipe 3 and an outer sleeve inner pipe 4, wherein a slag hanging plate 5 is arranged at the bottom end of the outer surface wall of the outer sleeve pipe 2, an inner sleeve outer pipe 6, an inner sleeve middle pipe 7 and an inner sleeve inner pipe 8 are respectively arranged inside the outer sleeve inner pipe 4, a fuel gas pipe 9 is arranged on the inner surface wall of the inner sleeve inner pipe 8, a main oxygen pipe 10 is arranged on the inner surface wall of the fuel gas pipe 9, an outer pipe connecting pipe 11 is arranged at one end of the outer sleeve pipe 2 far away from the outer sleeve copper head 1, a first flange 12 is arranged at one end of the outer pipe connecting pipe 11, outer sleeve water inlet 13 and outer sleeve water return 14 are respectively and symmetrically arranged on the outer surface wall of the outer pipe connecting pipe 11, an installation plate 15 is arranged at the top end of the outer surface wall of the outer sleeve outer pipe 2, a second flange 16 is, a third flange 21 is arranged at one end of the inner sleeve water return connection pipe 20 far away from the second flange 16, an inner sleeve water inlet connection pipe 22 is arranged at one end of the third flange 21, a fourth flange 23 is arranged at one end of the inner sleeve water inlet connection pipe 22, an epoxy connection pipe 26 is arranged at one end of the fourth flange 23, an epoxy inlet 19 is arranged at one side of the outer wall of the epoxy connection pipe 26, an epoxy flange 27 is arranged at one end of the epoxy connection pipe 26, a gas first flange 28 is arranged at one end of the epoxy flange 27 far away from the epoxy connection pipe 26, a gas connection pipe 29 is arranged at one end of the gas first flange 28, a gas inlet 24 is arranged at one side of the outer wall of the gas connection pipe 29, a gas second flange 30 is arranged at one end of the gas connection pipe 29, a main oxygen flange 31 is arranged at one end of the gas second flange 30, a main oxygen inlet 25 is arranged at one end of the main oxygen flange 31, and movable joint bolts, the inside of the swing bolt 32 is respectively provided with a swing bolt fixing plate 33 and a swing bolt fixing pin 34; by additionally arranging the outer sleeve copper head 1, the outer sleeve outer pipe 2, the outer sleeve middle pipe 3, the outer sleeve inner pipe 4, the inner sleeve outer pipe 6, the inner sleeve middle pipe 7, the inner sleeve inner pipe 8, the gas pipe 9, the main oxygen pipe 10, the outer pipe connecting pipe 11 and the first flange 12, a copper water tank with higher cost and large volume can be effectively removed, so that the furnace wall coherent oxygen lance is set into a double-water-cooling type and water-cooling split type, the disassembly and replacement of a user are facilitated, meanwhile, the split type module in the coherent oxygen lance is also convenient to disassemble and replace, the module volume is reduced, the service life is prolonged, and the use cost is greatly reduced; by additionally arranging the fourth flange 23, the epoxy connecting pipe 26, the epoxy flange 27, the first gas flange 28, the gas connecting pipe 29, the second gas flange 30, the main oxygen flange 31, the eyelet bolt 32, the eyelet bolt fixing plate 33 and the eyelet bolt fixing pin shaft 34, and by additionally arranging the fourth flange, the epoxy connecting pipe, the epoxy flange, the first gas flange and other parts, all main body components can be disassembled and replaced, so that when the coherent oxygen lance is used, the distance of the oxygen lance in the electric furnace can be increased, the distance between the spray gun and the molten bath can be shortened, the effective distance of the air flow injected by the oxygen lance can be increased, and in a refining stage, a copper head is immersed in a foam slag layer, thereby essentially avoiding the phenomena of splashing and electric furnace smelting atmosphere power dispersion, and reducing the risk of furnace wall sparking.

In this embodiment, the joints between the epoxy flange 27 and the gas first flange 28 are respectively provided with a first gasket 35, the joints between the gas second flange 30 and the main oxygen flange 31 are respectively provided with a second gasket 36, and the shape of the first gasket 35 is the same as that of the second gasket 36. One end of the inner sleeve inner tube 8 is provided with an inner sleeve copper head 37, and the shape of the inner sleeve copper head 37 is a cylindrical structure. A gas nozzle 38 is arranged at one end inside the gas pipe 9, and the gas nozzle 38 is of a cylindrical structure; epoxy is sprayed from between the inner sleeve copper head 37 and the gas nozzle 38. One end of the inner surface wall of the main oxygen pipe 10 is provided with a main oxygen nozzle 39, and the shape of the main oxygen nozzle 39 is a cylindrical structure; the primary oxygen is ejected through the primary oxygen nozzle 39. The outer sleeve copper head 1, the outer sleeve pipe 2, the outer sleeve middle pipe 3, the outer sleeve inner pipe 4, the inner sleeve outer pipe 6, the inner sleeve middle pipe 7, the inner sleeve inner pipe 8, the fuel gas pipe 9, the main oxygen pipe 10, the outer pipe connecting pipe 11 and the first flange 12 are cylindrical in shape, and the length of the outer pipe connecting pipe 11 is smaller than that of the outer sleeve pipe 2; can effectively remove the copper water tank with higher cost and large volume, so that the furnace wall coherent oxygen lance is set into a double water-cooled type and each water-cooled split type, and a user can conveniently detach and replace the lance. The number of the gas second flanges 30 and the main oxygen flanges 31 is one group, the number of the swing bolts 32, the swing bolt fixing plates 33 and the swing bolt fixing pin shafts 34 is matched with the number of the gas second flanges 30 and the main oxygen flanges 31, the number of the epoxy flanges 27 and the gas first flanges 28 is one group, the structure is the same as that of the gas second flanges and the main oxygen flanges, and the gas second flanges and the main oxygen flanges are connected by the swing bolts; the disassembly and the replacement of each main component are convenient, when the coherent oxygen lance is used, the distance of the oxygen lance deeply entering the electric furnace can be increased, the distance between a spray gun and a molten pool is shortened, the effective distance of the oxygen lance for injecting air flow is increased, and in a refining stage, a copper head is immersed in a foam slag layer, so that the phenomena of splashing and electric furnace smelting atmosphere power dispersion are essentially avoided, and the risk of firing on a furnace wall can be reduced. Mounting holes are formed in the mounting plate 15, the mounting holes are circular, and the number of the mounting holes is four; the multifunctional coherent oxygen lance module is fixed on the wall of the electric furnace through the matching of the mounting plate 15 and the mounting hole.

The utility model discloses a theory of operation and use flow: when the multifunctional coherent oxygen lance module is used, the multifunctional coherent oxygen lance module is fixed on the wall of an electric furnace through a mounting plate 15, a closed water path is formed through a jacket copper head 1, a jacket outer pipe 2, a jacket middle pipe 3, a jacket inner pipe 4, an outer pipe connecting pipe 11, a first flange 12 and a second flange 16, and a jacket water inlet 13 and a jacket water return 14 are arranged to form a water cooling channel so as to protect the whole module from being normally used at high temperature of the electric furnace; a closed water channel is formed by an inner sleeve outer pipe 6, an inner sleeve middle pipe 7, an inner sleeve inner pipe 8, an inner sleeve water return connecting pipe 20, a third flange 21, an inner sleeve water inlet connecting pipe 22, a fourth flange 23 and an inner sleeve copper head 37, a water cooling channel is formed by arranging an inner sleeve water return 17 and an inner sleeve water inlet 18, an inner sleeve inner pipe 8, a gas pipe 9, the fourth flange 23, an epoxy connecting pipe 26, an epoxy flange 27, a first sealing gasket 35, the inner sleeve copper head 37 and a gas nozzle 38 form an epoxy channel, an epoxy inlet 19 is arranged, and epoxy is sprayed out from a circular seam between the inner sleeve copper head 37 and the gas nozzle 38; a gas channel is formed by the gas pipe 9, the main oxygen pipe 10, the first gas flange 28, the gas connecting pipe 29, the second gas flange 30 and the second sealing gasket 36, gas enters from the gas inlet 24 and then is sprayed out from the hole of the gas nozzle 38, a main oxygen component is formed by the main oxygen pipe 10, the main oxygen inlet 25 and the main oxygen flange 31 and the main oxygen nozzle 39, main oxygen enters from the main oxygen inlet 25 and then is sprayed out from the main oxygen nozzle 39, the first sealing gasket 35 plays a sealing role and can realize online replacement by assembling the epoxy flange 27 and the first gas flange 28 together through the swing bolt 32, the swing bolt fixing plate 33 and the swing bolt fixing pin 34; the gas assembly and the main oxygen assembly are assembled together through a gas second flange 30 and a main oxygen flange 31 by a movable joint bolt 32, a movable joint bolt fixing plate 33 and a movable joint bolt fixing pin shaft 34, and a second sealing gasket 36 plays a role of sealing; and online replacement can be realized.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. Multifunctional coherent oxygen lance module, including overcoat copper head (1), overcoat outer tube (2), overcoat well pipe (3) and overcoat inner tube (4), its characterized in that: the slag hanging plate (5) is arranged at the bottom end of the outer surface wall of the outer sleeve outer pipe (2), the inner sleeve outer pipe (6), the inner sleeve middle pipe (7) and the inner sleeve inner pipe (8) are respectively arranged inside the outer sleeve inner pipe (4), the gas pipe (9) is arranged on the inner surface wall of the inner sleeve inner pipe (8), the main oxygen pipe (10) is arranged on the inner surface wall of the gas pipe (9), the outer pipe connecting pipe (11) is arranged at one end, away from the outer sleeve copper head (1), of the outer sleeve outer pipe (2), the first flange (12) is arranged at one end of the outer pipe connecting pipe (11), the outer surface wall of the outer pipe connecting pipe (11) is respectively and symmetrically provided with the outer sleeve water inlet pipe (13) and the outer sleeve water return pipe (14), the mounting plate (15) is arranged at the top end of the outer surface wall of the outer sleeve outer pipe (2), the second flange (16) is arranged at one, the outer surface wall of the inner sleeve water return connection pipe (20) is provided with inner sleeve water return (17) and inner sleeve water inlet (18) respectively, one end, far away from the second flange (16), of the inner sleeve water return connection pipe (20) is provided with a third flange (21), one end of the third flange (21) is provided with an inner sleeve water inlet connection pipe (22), one end of the inner sleeve water inlet connection pipe (22) is provided with a fourth flange (23), one end of the fourth flange (23) is provided with an epoxy connection pipe (26), one side of the outer surface wall of the epoxy connection pipe (26) is provided with an epoxy inlet (19), one end of the epoxy connection pipe (26) is provided with an epoxy flange (27), one end, far away from the epoxy connection pipe (26), of the epoxy flange (27) is provided with a gas first flange (28), one end of the gas first flange (28) is provided with a gas connection pipe (29), one side of the outer surface wall, and one end of the gas connecting pipe (29) is provided with a gas second flange (30), one end of the gas second flange (30) is provided with a main oxygen flange (31), one end of the main oxygen flange (31) is provided with a main oxygen inlet (25), the gas second flange (30), the main oxygen flange (31), the epoxy flange (27) and the gas first flange (28) are internally provided with swing bolts (32), and the swing bolt fixing plate (33) and the swing bolt fixing pin shaft (34) are respectively arranged in the swing bolts (32).

2. The multifunctional coherent oxygen lance module of claim 1, wherein: the utility model discloses a gas-fired boiler, including epoxy flange (27), gas first flange (28), junction between epoxy flange (27) and the gas first flange (28) is provided with first sealed pad (35) respectively, junction between gas second flange (30) and main oxygen flange (31) is provided with second sealed pad (36) respectively, the shape of first sealed pad (35) is the same with the shape of second sealed pad (36).

3. The multifunctional coherent oxygen lance module of claim 1, wherein: one end of the inner sleeve inner tube (8) is provided with an inner sleeve copper head (37), and the shape of the inner sleeve copper head (37) is a cylindrical structure.

4. The multifunctional coherent oxygen lance module of claim 1, wherein: the gas pipe is characterized in that a gas nozzle (38) is arranged at one end of the inside of the gas pipe (9), and the gas nozzle (38) is of a cylindrical structure.

5. The multifunctional coherent oxygen lance module of claim 1, wherein: the oxygen supplying device is characterized in that a main oxygen nozzle (39) is arranged at one end of the inner surface wall of the main oxygen pipe (10), and the main oxygen nozzle (39) is of a cylindrical structure.

6. The multifunctional coherent oxygen lance module of claim 1, wherein: the gas-fired oxygen burner is characterized in that the outer sleeve copper head (1), the outer sleeve outer pipe (2), the outer sleeve middle pipe (3), the outer sleeve inner pipe (4), the inner sleeve outer pipe (6), the inner sleeve middle pipe (7), the inner sleeve inner pipe (8), the gas pipe (9), the main oxygen pipe (10), the outer pipe connecting pipe (11) and the first flange (12) are of cylindrical structures, and the length of the outer pipe connecting pipe (11) is smaller than that of the outer sleeve outer pipe (2).

7. The multifunctional coherent oxygen lance module of claim 1, wherein: the number of the second gas flanges (30) and the number of the main oxygen flanges (31) are one group, the number of the swing bolts (32), the swing bolt fixing plates (33) and the swing bolt fixing pin shafts (34) is matched with the number of the second gas flanges (30) and the number of the main oxygen flanges (31), and the number of the epoxy flanges (27) and the number of the first gas flanges (28) are one group, are in the same structure as the second gas flanges and the main oxygen flanges, and are connected by the swing bolts.

8. The multifunctional coherent oxygen lance module of claim 1, wherein: the inside of mounting panel (15) is provided with the mounting hole, the shape of mounting hole is circular, the quantity of mounting hole is four groups.