Total oxygen burner and steel ladle total oxygen combustion baking system

Abstract

The utility model discloses an all-oxygen burner and a steel ladle all-oxygen combustion baking system, which relate to the technical field of all-oxygen combustion and comprise an oxygen pipeline, a fuel gas pipeline and an all-oxygen burner, a connecting pipeline is mounted on the oxygen pipeline, and the oxygen pipeline is connected with a manual shut-off valve I, a filter I, a pressure regulating valve, a pneumatic safety shut-off valve group I, a flow regulating group I and a flame arrester; a connecting pipeline is mounted on the gas pipeline, and the gas pipeline is connected with a second manual shut-off valve, a second filter, a second pneumatic safety shut-off valve group, a second flow adjusting group and a seventh pressure gauge; and a switch or a pressure gauge is arranged on the connecting pipeline at each joint. The technical problems that in the prior art, the steel ladle baking combustion effect is poor, flames float upwards, and the baking heat efficiency is low are solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of full-oxygen combustor, specifically to full-oxygen combustor and ladle full-oxygen combustion baking system. BACKGROUND

[0002] The ladle plays the role of containing molten steel in the steel smelting production process, and the temperature of the ladle lining begins to decrease during the empty ladle returning process, and the ladle lining temperature will decrease sharply. The longer the ladle turnover time is, the greater the ladle lining temperature drop is, and the more heat absorbed by the ladle lining from the high-temperature molten steel after containing the molten steel is, and the greater the molten steel temperature drop is. In order to meet the temperature requirements of continuous casting molten steel, avoid increasing the converter tapping temperature to increase the steelmaking production cost, and meet the temperature requirements of continuous casting molten steel, the ladle lining needs to be baked before each time containing the molten steel. The purpose of ladle baking is to bake the water in the ladle lining clean, increase the temperature of the ladle lining, and keep the temperature in the ladle, so as to prevent the damage of the ladle lining when containing the molten steel. The ladle baking not only can ensure the stable steel production rhythm and product quality, but also has great significance for steel continuous casting production.

[0003] The ladle baking technology has developed from direct-fired, preheating and regenerative types, and the baking efficiency is getting higher and higher, but there are still the following problems in the long-term use process:

[0004] The high-temperature flue gas is directly discharged from the edge of the ladle cover, and the flue gas takes away most of the heat;

[0005] The flame rigidity is insufficient, the combustion effect is poor, the flame floats up, the fire is serious at the outer edge of the ladle cover, the temperature difference between the upper and lower ladles is large, and the temperature uniformity is poor, so the baking time has to be prolonged to achieve the baking effect;

[0006] In order to consider the flame rigidity, the air is seriously excessive, and the air-oxygen ratio cannot be accurately controlled;

[0007] When the load is large, the flame is chaotic due to high pressure in the ladle, and the direct heat loss is large;

[0008] The baking thermal efficiency is low, the energy consumption is high, and the pollutant emission is large.

[0009] With the improvement of the oxygen production capacity of large steel enterprises, the excess oxygen is diffused, and the resources are seriously wasted. If the excess oxygen is used as combustion-supporting gas, compared with air combustion-supporting, 79% of N2 heat loss can be reduced, the combustion intensity of the gas can be greatly improved, the utilization rate of the gas can be improved, and the energy consumption can be reduced.

[0010] Therefore, we provide full-oxygen combustor and ladle full-oxygen combustion baking system to solve the above problems. UTILITY MODEL CONTENTS

[0011] The utility model discloses in order to make up for the deficiency of prior art, provide full oxygen combustor and steel ladle full oxygen combustion roasting system, to solve the steel ladle roasting combustion effect of prior art is not good, flame up, the serious fire of the outer edge of the cover, the temperature difference of steel ladle is big, when big load due to the high pressure in the bag, flame is in disorder, direct heat loss is big, roasting thermal efficiency is low, energy consumption is high, the technical problem of big pollutant emission.

[0012] The utility model discloses to solve above-mentioned technical problem and provides following technical scheme: a full oxygen combustor and steel ladle full oxygen combustion roasting system, including oxygen pipeline, gas pipeline and full oxygen combustor,

[0013] The oxygen pipeline is installed with connecting pipeline, and is connected with manual shutoff valve no.

[0014] The gas pipeline is installed with connecting pipeline, and is connected with manual shutoff valve no.

[0015] The oxygen pipeline is installed with connecting pipeline, and is connected with manual shutoff valve no.

[0016] The oxygen pipeline is installed with connecting pipeline, and is connected with manual shutoff valve no.

[0017] Further technical scheme, the pressure table no. between the manual shutoff valve no. and filter no. 1 is installed, the pressure table no. 2 is installed between filter no. 1 and pressure regulating valve, and the pressure table no. 3 is further installed between pressure regulating valve and pneumatic safety cutout valve group no. 1;

[0018] The pneumatic safety cutout valve group no. 1 includes pneumatic safety cutout valve no. 1 and pneumatic safety cutout valve no. 2, and pneumatic safety cutout valve no. 1 is connected with pneumatic safety cutout valve no. 2;

[0019] The flow regulating group no. 1 includes flowmeter no. 1 and flow regulating valve no. 1;Flowmeter no. 1 and flow regulating valve no. 1 are communicated, and the pressure table no. 4 is installed between flow regulating valve no. 1 and flame arrestor.

[0020] Further technical scheme, the pressure table no. 5 is installed on the connecting pipeline between manual shutoff valve no. 2 and filter no. 2, and the pressure table no. 6 is further installed on the connecting pipeline between filter no. 2 and pneumatic safety cutout valve group no. 2;

[0021] The second group of pneumatic safety cut-off valves comprises a third pneumatic safety cut-off valve and a fourth pneumatic safety cut-off valve, and the third pneumatic safety cut-off valve and the fourth pneumatic safety cut-off valve are connected;

[0022] The second group of flow regulating valves comprises a second flow meter and a second flow regulating valve, the second flow meter and the second flow regulating valve are connected, and a pressure gauge seven is installed between the second flow regulating valve and the full-oxygen burner.

[0023] In a further technical solution, the full-oxygen burner comprises a burner, a mounting shell and a fixing column, the burner is detachably mounted on the mounting shell, a cavity is arranged in the burner, and an oxygen pipe joint is arranged at the top of the cavity, and the oxygen pipe joint is connected with an oxygen pipe; a gas gun pipe is installed in the burner, the gas gun pipe is connected with the burner and penetrates through the burner, and the gas gun pipe is connected with the mounting shell;

[0024] A conical combustion cavity is installed in the fixing column, a center hole is arranged in the mounting shell, and a fixing recess is arranged on one side of the conical combustion cavity relative to the center hole; a rotating member is installed in the fixing recess of the gas gun pipe, and the gas gun pipe is adapted to rotate in the fixing recess;

[0025] The gas gun pipe and the burner are connected through a mounting and connecting closure member, a pushing member is arranged on the connecting closure member, the pushing member is adapted to push the gas gun pipe to adjust the angle of the gas gun pipe in the burner;

[0026] An ignition cavity is installed on the mounting shell, and the ignition cavity is connected with the conical combustion cavity.

[0027] In a further technical solution, the rotating member comprises a fixed disc, the fixed disc is fixedly connected with the fixing recess, a plurality of mounting holes are arranged on the fixed disc, and an oxygen nozzle is installed in the mounting hole;

[0028] Two groups of bayonet plates are installed in the middle of the fixed disc, a rotating sphere is installed in the two groups of bayonet plates, the rotating sphere is limited by the two sides through the bayonet plates, the horizontal distance of the two groups of bayonet plates is not greater than 1 / 2 of the diameter of the rotating sphere, and the diameter of the gas gun pipe is not greater than 3 / 5 of the diameter of the rotating sphere; the rotating sphere is adapted to be penetrated by the gas gun pipe, and a combustion nozzle is installed at the end of the gas gun pipe extending into the conical combustion cavity.

[0029] In a further technical solution, the connecting closure member comprises an annular plate, the diameter of the annular plate is greater than the outer diameter of the corresponding gas gun pipe, and the annular plate is fixedly connected with the burner; a plurality of position openings are formed in the annular plate, a pushing member is installed in the position opening, and the pushing member is adapted to abut against the surface of the gas gun pipe.

[0030] Further technical solutions, the pusher includes an electric push rod, the output end of the electric push rod is provided with a long rod, the long rod passes through the position mouth and is provided with an arc-shaped sheet at the end away from the electric push rod, the arc-shaped sheet is attached to the surface of the gas gun barrel;

[0031] The outer side of the annular plate is provided with a mounting rack adapted to be connected with the shell of the electric push rod.

[0032] Further technical solutions, the ignition cavity is obliquely arranged, and a first detection cavity and a second detection cavity are formed in the fixing column, the first detection cavity is communicated with the ignition cavity, and a first flame detector is arranged in the first detection cavity; the second detection cavity is communicated with the conical combustion cavity, and a second flame detector is arranged in the second detection cavity.

[0033] Compared with the prior art, the full-oxygen burner and the full-oxygen combustion roasting system for a ladle have the following beneficial effects:

[0034] (1) High-intensity flame disturbance, which can make the flame reach the bottom of the ladle, achieve rapid and uniform heating, ensure uniform temperature, and shorten the roasting and heating time by 30%.

[0035] (2) Energy saving effect is obvious, and the amount of flue gas emission is greatly reduced, and the energy saving amount of gas is more than 50% compared with traditional conventional combustion, so that the energy saving and money saving effect is achieved.

[0036] (3) The oxygen combustion ratio is automatically adjusted, and the roasting is carried out according to the set curve, and in special working conditions, the roasting can be carried out by using stage time ratio. The whole process of the roasting process is monitored by the flame safety interlocking, so as to ensure the safety of the whole process of the system.

[0037] (4) The rotating ball is arranged to realize the rotation of the gas gun barrel in the conical combustion cavity, the pusher is installed on the annular plate for adjustment, so as to have a wider jet angle, so as to realize the adjustment of the combustion angle, so as to obtain more sufficient combustion efficiency. Full-oxygen combustion is adopted, which consumes less combustion-supporting gas than air combustion, so that the heat loss in the ladle is less. BRIEF DESCRIPTION OF DRAWINGS

[0038] Figure 1 It is a schematic view of the full-oxygen combustion roasting system for a ladle of the utility model;

[0039] Figure 2 It is a sectional view of the full-oxygen burner of the utility model;

[0040] Figure 3 It is Figure 2 the enlarged view of A of the utility model;

[0041] Figure 4 It is a schematic view of the pusher installed on the annular plate of the utility model;

[0042] In the figure:

[0043] 1, manual shut-off valve one; 2, pressure gauge one; 3, full-oxygen burner; 4, pressure gauge two; 5, pressure regulating valve; 6, pressure gauge three; 7, low-pressure switch one; 8, pneumatic safety shut-off valve one; 9, pneumatic safety shut-off valve two; 10, high-pressure switch one; 11, flow meter one; 12, flow regulating valve one; 13, pressure gauge four; 14, flame arrestor;

[0044] 15, manual shut-off valve two; 16, pressure gauge five; 17, filter two; 18, pressure gauge six; 19, low-pressure switch two; 20, pneumatic safety shut-off valve three; 21, pneumatic safety shut-off valve four; 22, high-pressure switch two; 23, flow meter two; 24, flow regulating valve two; 25, pressure gauge seven; 26, filter one;

[0045] 27, flame detector one; 28, flame detector two;

[0046] 31, burner; 32, mounting shell; 33, fixing column; 34, gas gun barrel; 35, oxygen pipe joint; 36, conical combustion chamber; 37, rotating member; 38, pushing member; 39, annular plate;

[0047] 371, fixing disc; 372, oxygen nozzle; 373, bayonet plate; 374, rotating sphere; 375, combustion nozzle;

[0048] 381, electric push rod; 382, long rod; 383, arc-shaped piece; 384, mounting frame;

[0049] 331, first detection cavity; 332, second detection cavity; 333, ignition cavity. DETAILED DESCRIPTION

[0050] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0051] Embodiment 1

[0052] Please refer to Figure 1 A technical scheme is provided in the present application: a full-oxygen burner and a full-oxygen burner and ladle baking system, comprising an oxygen pipeline, a gas pipeline and a full-oxygen burner 3.

[0053] The oxygen pipeline is provided with a connecting pipeline and is connected with a hand-off valve 1, a filter 26, a pressure regulating valve 5, a pneumatic safety cut-off valve group 1, a flow regulating group 1 and a flame arrester 14;

[0054] The gas pipeline is provided with a connecting pipeline and is connected with a hand-off valve 2 15, a filter 2 17, a pneumatic safety cut-off valve group 2, a flow regulating group 2 and a pressure gauge 7 25;

[0055] The oxygen is sent into the oxygen inlet of the full-oxygen burner 3 through the hand-off valve 1, the filter 26, the pressure regulating valve 5, the low-pressure switch 7, the pneumatic safety cut-off valve 8, the pneumatic safety cut-off valve 9, the high-pressure switch 10, the flow meter 11, the flow regulating valve 12 and the flame arrester 14, wherein the filter 26 is provided with a pressure gauge 2 and a pressure gauge 4 before and after respectively, the pressure regulating valve 5 is provided with a pressure gauge 6 after, and the flow regulating valve 12 is provided with a pressure gauge 13 after. The filter 26 is used for filtering impurities in the oxygen, the pressure regulating valve 5 is used for adjusting the pressure of the oxygen, the low-pressure switch 7 and the high-pressure switch 10 are used for limiting the pressure of the oxygen in the pipeline to be appropriate, the pneumatic safety cut-off valve 8 and the pneumatic safety cut-off valve 9 are used for the safety cut-off of the oxygen, the flow meter 11 is used for measuring the flow of the oxygen, and the flow regulating valve 12 is used for regulating the flow of the oxygen. The gas is sent into the gas inlet of the full-oxygen burner 3 through the hand-off valve 2 15, the filter 2 17, the low-pressure switch 2 19, the pneumatic safety cut-off valve 3 20, the pneumatic safety cut-off valve 4 21, the high-pressure switch 2 22, the flow meter 2 23 and the flow regulating valve 2 24, wherein the filter 2 17 is provided with a pressure gauge 5 16 and a pressure gauge 6 18 before and after respectively, and the flow regulating valve 2 24 is provided with a pressure gauge 7 25 after. The filter 2 17 is used for filtering impurities in the gas, the low-pressure switch 2 19 and the high-pressure switch 2 22 are used for limiting the pressure of the gas in the pipeline to be appropriate, the pneumatic safety cut-off valve 3 20 and the pneumatic safety cut-off valve 4 21 are used for the safety cut-off of the gas, the flow meter 2 23 is used for measuring the flow of the gas, and the flow regulating valve 2 24 is used for regulating the flow of the gas.

[0056] The pneumatic safety cut-off valve group one includes pneumatic safety cut-off valve one 8 and pneumatic safety cut-off valve two 9, and the pneumatic safety cut-off valve one 8 and the pneumatic safety cut-off valve two 9 are connected; the flow regulating group one includes flow meter one 11 and flow regulating valve one 12; the flow meter one 11 and the flow regulating valve one 12 are communicated, and the pressure gauge four 13 is installed between the flow regulating valve one 12 and the flame arrester 14. The pneumatic safety cut-off valve group two includes pneumatic safety cut-off valve three 20 and pneumatic safety cut-off valve four 21, and the pneumatic safety cut-off valve three 20 and the pneumatic safety cut-off valve four 21 are connected; the flow regulating group two includes flow meter two 23 and flow regulating valve two 24; the flow meter two 23 and the flow regulating valve two 24 are communicated, and the pressure gauge seven 25 is installed between the flow regulating valve two 24 and the full-oxygen burner 3. Corresponding to each component, the connecting pipes are connected, and the diameters are matched. Among them, the pressure gauges, low-pressure switches and high-pressure switches are installed on the corresponding connecting pipes.

[0057] The full-oxygen combustion adopts the dilute oxygen combustion technology. The full-oxygen burner sprays the fuel gas and oxygen at high speed respectively, so that the fuel gas and oxygen are rapidly mixed with the high-temperature flue gas to generate a uniform temperature field, reduce the flame temperature, and be beneficial to realize the uniform temperature in the ladle and inhibit the generation of thermal nitrogen oxides. In addition, the flame shape and temperature distribution can be flexibly adjusted.

[0058] Under the ideal ratio of fuel gas and oxygen, the combustion temperature is the highest and the heat loss is the smallest. The accurate regulation of the air-oxygen ratio can reduce the unnecessary supply of excess oxygen. When the oxygen is supplied in excess, the excess oxygen does not participate in combustion, but needs to be discharged at the temperature in the ladle, thereby increasing the fuel gas consumption. The flow detection of the fuel gas and oxygen is increased, and the automatic control system is increased. The air-oxygen ratio of the combustion system can be reasonably controlled to obtain better energy-saving effect.

[0059] The embodiment has the following advantages:

[0060] (1) The high-intensity disturbance of the flame promotes the flame to reach the bottom of the ladle, so that the rapid and uniform heating is achieved, the temperature uniformity is ensured, and the baking and heating time is shortened by 30%.

[0061] (2) The energy-saving effect is obvious, the flue gas emission is greatly reduced, and the fuel gas energy-saving amount is more than 50% compared with the traditional conventional combustion, so that the energy-saving and money-saving effect is achieved.

[0062] (3) The oxygen-fuel ratio is automatically adjusted, and the baking is performed according to the set curve. In special conditions, the baking can be performed by using the stage time ratio. The whole process of the baking process is monitored by the flame safety interlocking, so that the safety of the whole process of the system is ensured.

[0063] Embodiment 2

[0064] Reference Figures 2-4As shown, it is one embodiment of the utility model, on the basis of example 1, angle setting is additionally arranged to full oxygen combustor, so as to obtain more wide range of gas gun pipe in the injection angle. The injection angle can influence the mixing condition of gas and oxygen, combustion efficiency and stability.

[0065] Based on sufficient combustion effect, a full oxygen combustor that can adjust gas gun pipe is provided, the full oxygen combustor 3 includes burner 31, installation shell 32 and fixed column 33, burner 31 is detachably installed on the body of installation shell 32, the cavity is arranged in burner 31, and the top of the cavity is provided with oxygen pipe joint 35, and the oxygen pipe joint 35 is connected with the oxygen pipeline;Gas gun pipe 34 is installed in burner 31, and gas gun pipe 34 is connected with burner 31 and passes through burner 31, and is connected with installation shell 32;

[0066] Fixed column 33 is installed with conical combustion cavity 36, and the center hole is arranged in installation shell 32, and the fixed recess is arranged on the side of conical combustion cavity 36 relative to the center hole;Rotating part 37 is installed in fixed recess in gas gun pipe 34, and gas gun pipe 34 is adapted to rotate in fixed recess;

[0067] Gas gun pipe 34 is connected with burner 31 through installation connection closure, and the pusher 38 is arranged on the connection closure, and the pusher 38 is adapted to push gas gun pipe 34, and the angle of gas gun pipe 34 in burner 31 is adjusted;

[0068] Ignition cavity 333 is installed on installation shell 32, and ignition cavity 333 is communicated with conical combustion cavity 36.

[0069] In further technical solutions, rotating part 37 includes fixed disc 371, and fixed disc 371 is fixedly connected in fixed recess, and a plurality of mounting holes are arranged on fixed disc 371, and oxygen nozzle 372 is installed in mounting hole;

[0070] The middle part of fixed disc 371 is installed with two groups of bayonet plates 373, and rotating sphere 374 is installed in two groups of bayonet plates 373, and the two sides of rotating sphere 374 are limited by bayonet plate 373, and the horizontal distance of two groups of bayonet plates 373 is not greater than 0.5 of the diameter of rotating sphere 374, and the diameter of gas gun pipe 34 is not greater than 0.6 of rotating sphere 374;Rotating sphere 374 is adapted to pass through gas gun pipe 34, and combustion nozzle 375 is installed at the end of gas gun pipe 34 extending into conical combustion cavity 36. The size length is arranged on one hand to ensure that the rotating sphere can be limited in two groups of bayonet plates, and on the other hand to avoid that the gas gun pipe is too large, which causes that the diameter of rotating sphere is exceeded and the angle rotation cannot be realized. The specific size can be designed according to the actual installation required angle rotation size.

[0071] As Figure 4As shown, the connecting closing member comprises an annular plate 39, the diameter of the annular plate 39 is greater than the outer diameter of the corresponding gas lance pipe 34, the annular plate 39 is fixedly connected with the burner 31; a plurality of position ports are formed on the annular plate 39, and a pushing member 38 is installed in the position port, the pushing member 38 is suitable for abutting against the surface of the gas lance pipe 34.

[0072] The pushing member 38 comprises an electric push rod 381, a long rod 382 is installed at the output end of the electric push rod 381, the long rod 382 passes through the position port and an arc-shaped sheet 383 is installed at the end of the long rod 382 away from the electric push rod 381, the arc-shaped sheet 383 is attached to the surface of the gas lance pipe 34; further, the pushing member 38 can also be provided with a linear output component such as a hydraulic cylinder or a pneumatic cylinder, the specific pushing distance required should be uniformly set by the operation of a control system, and when pushing is realized on one side, the other side should realize the retreat to avoid excessive extrusion of the gas lance pipe.

[0073] An installation frame 384 is arranged at the outer side of the annular plate 39, the installation frame 384 is suitable for being connected with the shell of the electric push rod 381.

[0074] The ignition channel 333 is arranged obliquely, and a first detection cavity 331 and a second detection cavity 332 are formed on the fixed column 33, the first detection cavity 331 is communicated with the ignition channel 333, and a first flame detector 27 is installed in the first detection cavity 331; the second detection cavity 332 is communicated with the conical combustion cavity 36, and a second flame detector 28 is installed in the second detection cavity 332. The flame detector adopts heat radiation detection and can not contact the flame.

[0075] It is obvious for those skilled in the art that the present application is not limited to the details of the above exemplary embodiments, and the present application can be implemented in other specific forms without departing from the spirit or essential characteristics of the present application. Therefore, the embodiments should be regarded as exemplary and non-limiting, the scope of the present application is defined by the appended claims rather than the above description, and all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be included in the present application.

Claims

1. A full oxygen combustor characterized by, The full-oxygen combustor (3) comprises a burner (31), a mounting shell (32) and a fixing column (33), the burner (31) is detachably mounted on the mounting shell (32), a cavity is arranged in the burner (31), and an oxygen pipe joint (35) is arranged at the top of the cavity and connected with an oxygen pipe; a gas gun barrel (34) is mounted in the burner (31), the gas gun barrel (34) is connected with the burner (31) and penetrates through the burner (31) and is connected with the mounting shell (32); A conical combustion cavity (36) is mounted in the fixing column (33), a center hole is arranged in the mounting shell (32), and the conical combustion cavity (36) is arranged on one side of the center hole and provided with a fixing notch; a rotating part (37) is mounted in the fixing notch, and the gas gun barrel (34) is adapted to rotate in the fixing notch; The gas gun barrel (34) is connected with the burner (31) through a mounting connection closing part, a pushing part (38) is arranged on the connection closing part, the pushing part (38) is adapted to push the gas gun barrel (34) and adjust the angle of the gas gun barrel (34) in the burner (31); An ignition cavity (333) is mounted on the mounting shell (32) and communicates with the conical combustion cavity (36).

2. The oxycombustion burner of claim 1, wherein, The rotating part (37) comprises a fixed disc (371), the fixed disc (371) is fixedly connected with the fixing notch, a plurality of mounting holes are arranged on the fixed disc (371), and an oxygen nozzle (372) is mounted in each mounting hole; A middle part of the fixed disc (371) is provided with two groups of bayonet plates (373), a rotating spherical body (374) is mounted in each group of bayonet plates (373), the rotating spherical body (374) is limited by the two groups of bayonet plates (373) on two sides, the outer ends of the two groups of bayonet plates (373) are horizontally spaced by not more than 1 / 2 of the diameter of the rotating spherical body (374), and the diameter of the gas gun barrel (34) is not more than 3 / 5 of the diameter of the rotating spherical body (374); the rotating spherical body (374) is adapted to be penetrated by the gas gun barrel (34), and a combustion nozzle (375) is mounted on the end of the gas gun barrel (34) extending into the conical combustion cavity (36).

3. The oxycombustor of claim 2, wherein, The connection closing part comprises an annular plate (39), the diameter of the annular plate (39) is greater than the outer diameter of the corresponding gas gun barrel (34), and the annular plate (39) is fixedly connected with the burner (31); a plurality of position openings are formed in the annular plate (39), a pushing part (38) is mounted in each position opening, and the pushing part (38) is adapted to abut against the surface of the gas gun barrel (34).

4. The oxycombustion burner of claim 3, wherein, The pushing part (38) comprises an electric push rod (381), a long rod (382) is mounted at the output end of the electric push rod (381), an arc-shaped sheet (383) is mounted at the end of the long rod (382) away from the electric push rod (381) and abuts against the surface of the gas gun barrel (34); The outer side of the annular plate (39) is provided with a mounting rack (384) adapted to be connected with the housing of the electric push rod (381).

5. The oxycombustor of claim 4, wherein, The ignition channel (333) is obliquely arranged, and a first detection cavity (331) and a second detection cavity (332) are arranged on the fixed column (33), the first detection cavity (331) is communicated with the ignition channel (333), and a first flame detector (27) is arranged in the first detection cavity (331); the second detection cavity (332) is communicated with the conical combustion cavity (36), and a second flame detector (28) is arranged in the second detection cavity (332).

6. A ladle full-oxygen firing baking system characterized by, The full-oxygen burner (3) of claim 5 further comprises an oxygen pipeline and a gas pipeline; The oxygen pipeline is provided with a connecting pipeline, and is connected with a manual shutoff valve one (1), a filter one (26), a pressure regulating valve (5), a pneumatic safety shutoff valve group one, a flow regulating group one and a flame arrestor (14); The gas pipeline is provided with a connecting pipeline, and is connected with a manual shutoff valve two (15), a filter two (17), a pneumatic safety shutoff valve group two, a flow regulating group two and a pressure gauge seven (25); The flame arrestor (14) and the pressure gauge seven (25) are communicated with the full-oxygen burner (3), the manual shutoff valve one (1), the filter one (26) and the pressure regulating valve (5) are communicated with each other, a low-pressure switch one (7) is arranged between the pneumatic safety shutoff valve group one and the pressure regulating valve (5), and a high-pressure switch one (10) is arranged between the flow regulating group one and the pneumatic safety shutoff valve group one; The manual shutoff valve two (15) and the filter two (17) are communicated with each other, a low-pressure switch two (19) is arranged between the filter two (17) and the pneumatic safety shutoff valve group two, and a high-pressure switch two (22) is arranged between the pneumatic safety shutoff valve group two and the flow regulating group two.

7. The ladle top-oxygen firing baking system according to claim 6, wherein A pressure gauge one (2) is arranged between the manual shutoff valve one (1) and the filter one (26), a pressure gauge two (4) is arranged between the filter one (26) and the pressure regulating valve (5), and a pressure gauge three (6) is further arranged between the pressure regulating valve (5) and the pneumatic safety shutoff valve group one; The pneumatic safety shutoff valve group one comprises a pneumatic safety shutoff valve one (8) and a pneumatic safety shutoff valve two (9), and the pneumatic safety shutoff valve one (8) and the pneumatic safety shutoff valve two (9) are connected with each other; The flow regulating group one comprises a flow meter one (11) and a flow regulating valve one (12), the flow meter one (11) and the flow regulating valve one (12) are communicated with each other, and a pressure gauge four (13) is arranged between the flow regulating valve one (12) and the flame arrestor (14).

8. The ladle full-oxygen firing baking system according to claim 7, characterized in that, A pressure gauge five (16) is arranged on the connecting pipeline between the manual shutoff valve two (15) and the filter two (17), and a pressure gauge six (18) is further arranged on the connecting pipeline between the filter two (17) and the pneumatic safety shutoff valve group two; The pneumatic safety shutoff valve group two comprises a pneumatic safety shutoff valve three (20) and a pneumatic safety shutoff valve four (21), and the pneumatic safety shutoff valve three (20) and the pneumatic safety shutoff valve four (21) are connected with each other. The flow adjusting group two comprises a flow meter two (23) and a flow adjusting valve two (24); the flow meter two (23) and the flow adjusting valve two (24) are communicated, and a pressure gauge seven (25) is installed between the flow adjusting valve two (24) and the full-oxygen combustor (3).

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