CN220958471U

CN220958471U - Mixed acid regenerated roasting furnace burner capable of adjusting combustion intensity on line

Info

Publication number: CN220958471U
Application number: CN202322828487.XU
Authority: CN
Inventors: 李明明; 秦风华; 高阳; 周圣亮; 李飞; 徐家强; 赵清健; 庞道雄; 贾阳; 邹少兵
Original assignee: Wisdri Wuhan Thermal Industry Co ltd
Current assignee: Wisdri Wuhan Thermal Industry Co ltd
Priority date: 2023-10-20
Filing date: 2023-10-20
Publication date: 2024-05-14
Anticipated expiration: 2033-10-20

Abstract

A mixed acid regenerated roasting furnace burner capable of adjusting combustion intensity on line relates to the field of roasting. The mixed acid regenerated roasting furnace burner for on-line adjusting the intensity of combustion comprises an air pipe and a combustion pipe which are communicated, a gas pipe penetrating through the air pipe and extending into the combustion pipe, and a gas nozzle adjusting device penetrating through the gas pipe and extending into the combustion pipe; the gas nozzle adjusting device comprises a gas nozzle adjusting plate connected to a gas pipe, a transmission screw rod penetrating through the gas nozzle adjusting plate in a rotatable mode, a nut sleeved on the transmission screw rod through threads, a gas telescopic pipe, one end of the gas telescopic pipe is connected with the nut, the other end of the gas telescopic pipe extends out of the combustion pipe and is connected with an annular gas adjusting baffle plate, the nut is connected with at least one nut supporting plate in sliding fit with the inner wall of the gas pipe, and a wind distribution disc sleeved on the outer side of the gas pipe is arranged in the combustion pipe. The mixed acid regenerated roasting furnace burner capable of adjusting the combustion intensity on line can adjust the mixing intensity of coal gas and combustion-supporting air to control the flame combustion intensity and flame temperature.

Description

Mixed acid regenerated roasting furnace burner capable of adjusting combustion intensity on line

Technical Field

The application relates to the field of roasting, in particular to a mixed acid regenerated roasting furnace burner capable of adjusting the intensity of combustion on line.

Background

The differentiation of fuel components has higher and higher requirements on the temperature regulation of the burner of the hydrochloric acid regenerating roasting furnace, the existing long flame burner cannot regulate the mixing condition of combustion air and coal gas to regulate the intensity of combustion, and the service life and energy saving requirements of the roasting furnace on site cannot be met.

Thus, there is a need for a burner that can adjust the intensity of combustion during firing to meet the needs of use.

Disclosure of utility model

The application aims to provide a mixed acid regenerated roasting furnace burner capable of adjusting the intensity of combustion on line, which can adjust the gas injection flow rate and angle in a certain range, thereby adjusting the intensity of mixing of gas and combustion-supporting air to control the flame combustion intensity and flame temperature so as to adjust the temperature field distribution of a roasting furnace.

The application is realized in the following way:

The application provides a mixed acid regenerated roasting furnace burner for on-line adjusting the intensity of combustion, which comprises an air pipe and a combustion pipe which are mutually communicated, a gas pipe with one end penetrating through the air pipe and extending into the combustion pipe, and a gas nozzle adjusting device penetrating through the gas pipe and extending into the combustion pipe; the gas nozzle adjusting device comprises a gas nozzle adjusting plate connected to a gas pipe, a transmission screw with one end penetrating through the gas nozzle adjusting plate in a rotatable mode, a nut sleeved on the transmission screw through threads, a gas telescopic pipe, a connecting nut at one end of the gas telescopic pipe, an annular gas adjusting baffle connected to the outer wall of the gas telescopic pipe, at least one nut supporting plate in sliding fit with the inner wall of the gas pipe, and a wind distribution disc sleeved on the outer side of the gas pipe.

In some alternative embodiments, the air tube comprises an air delivery tube and an air inlet tube connected to an outer wall of the air delivery tube, and one end of the combustion tube is connected to one end of the air delivery tube.

In some alternative embodiments, the gas pipe comprises a gas fixing ring plate connected with the other end of the air conveying pipe, a gas conveying pipe connected to one side of the gas fixing ring plate far away from the air conveying pipe, a gas input pipe connected to the outer wall of the gas conveying pipe, a guide pipe, and a gas spray pipe with the outer wall connected with the end face of the guide pipe, wherein one end of the guide pipe extends into the air conveying pipe, the other end extends to the position of the gas conveying pipe and is respectively connected with the gas fixing ring plate and the gas conveying pipe through the guide fixing ring plate, one end of the gas spray pipe extends into the combustion pipe, and the other end of the gas spray pipe extends into the guide pipe.

In some alternative embodiments, the gas nozzle adjusting plate is connected with and seals one end of the gas conveying pipe far away from the air conveying pipe, one end of the gas nozzle adjusting plate far away from the gas conveying pipe is connected with a protection sleeve sleeved on the driving screw, a compression ring sleeved on the driving screw is arranged on the inner side of the protection sleeve, and a sealing ring respectively propping against the compression ring and the protection sleeve is sleeved on the driving screw.

In some alternative embodiments, the gas lance is provided with a strip-shaped hole extending along the length direction thereof, and the nut support plate passes through the strip-shaped hole and then slides against the inner wall of the guide pipe.

In some alternative embodiments, at least one extension tube support plate is connected to the outer wall of the gas extension tube and slides against the inner wall of the gas lance.

In some alternative embodiments, a baffle is attached to the inner wall of the gas bellows, and the baffle is pressed against the end of the drive screw to define the position of the gas bellows as the gas bellows moves axially along the drive screw.

In some alternative embodiments, the air distribution plate comprises an air distribution plate with a middle hole in the middle, a plurality of air distribution holes are formed in the air distribution plate, and the outer wall of the gas spray pipe is connected with a spray pipe fixing plate connected with the air distribution plate.

In some alternative embodiments, the inner wall of the combustion tube is provided with a circular seam plate fixedly sleeved outside the air distribution disc, and a circular seam gap is formed between the circular seam plate and the air distribution disc.

In some alternative embodiments, the inner diameter of the combustion tube increases progressively away from the air tube.

The beneficial effects of the application are as follows: the application provides a mixed acid regenerated roasting furnace burner capable of adjusting the intensity of combustion on line, which comprises an air pipe and a combustion pipe which are communicated with each other, a gas pipe with one end penetrating through the air pipe and extending into the combustion pipe, and a gas nozzle adjusting device penetrating through the gas pipe and extending into the combustion pipe; the gas nozzle adjusting device comprises a gas nozzle adjusting plate connected to a gas pipe, a transmission screw with one end penetrating through the gas nozzle adjusting plate in a rotatable mode, a nut sleeved on the transmission screw through threads, a gas telescopic pipe, a connecting nut at one end of the gas telescopic pipe, an annular gas adjusting baffle connected to the outer wall of the gas telescopic pipe, at least one nut supporting plate in sliding fit with the inner wall of the gas pipe, and a wind distribution disc sleeved on the gas pipe. The mixed acid regenerated roasting furnace burner capable of adjusting the combustion intensity on line can adjust the gas spraying flow rate and the angle within a certain range, so that the mixing intensity of gas and combustion-supporting air is adjusted to control the flame combustion intensity and the flame temperature to adjust the temperature field distribution of the roasting furnace, and further adjust the cyclone speed and the residence time of flue gas in the roasting furnace.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a cross-sectional structure of a burner of a mixed acid regenerating roasting furnace for on-line adjustment of combustion intensity, which is provided by an embodiment of the application;

FIG. 2 is a schematic diagram of a cross-sectional structure of a gas pipe in a burner of a mixed acid regenerating roasting furnace for on-line adjustment of combustion intensity, which is provided by an embodiment of the application;

FIG. 3 is a schematic diagram of a cross-sectional structure of connection between a hollow air pipe and a combustion pipe of a burner of a mixed acid regenerating roasting furnace for on-line adjustment of combustion intensity, which is provided by the embodiment of the application;

FIG. 4 is a schematic diagram of a cross-sectional structure of a device for adjusting a gas nozzle in a burner of a mixed acid regenerating roasting furnace, which is provided by an embodiment of the application, for adjusting the intensity of combustion on line;

FIG. 5 is a schematic diagram of a structure of a wind distribution disc in a burner of a mixed acid regenerating roasting furnace for on-line adjustment of combustion intensity, which is provided by the embodiment of the application;

FIG. 6 is a schematic diagram of a cross-sectional structure of a wind distribution disc in a mixed acid regenerated roasting furnace burner for on-line adjustment of combustion intensity, which is provided by the embodiment of the application;

FIG. 7 is a schematic diagram of a burner of a mixed acid regenerating roasting furnace, which is connected with the roasting furnace and is used for adjusting the intensity of combustion on line.

In the figure: 100. a gas pipe; 110. a gas fixing ring plate; 120. a gas delivery pipe; 130. a gas input pipe; 140. a guide tube; 150. a gas jet pipe; 151. a bar-shaped hole; 160. guiding the fixed ring plate; 200. an air tube; 210. an air delivery pipe; 220. an air input pipe; 300. a combustion tube; 400. a gas nozzle adjusting device; 410. a gas nozzle adjusting plate; 420. a drive screw; 430. a nut; 440. a gas telescopic pipe; 441. a telescopic tube support plate; 442. a baffle; 450. a gas regulating baffle; 460. a nut support plate; 470. a protective sleeve; 480. a compression ring; 490. a seal ring; 500. an air distribution disc; 510. an air distribution plate; 520. a middle hole; 530. air distribution holes; 540. a nozzle fixing plate; 550. a circular seam plate; 560. a circumferential gap; 600. and (5) a roasting furnace.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present application more apparent, the technical solutions of the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application, and it is apparent that the described embodiments are some embodiments of the present application, but not all embodiments of the present application. The components of the embodiments of the present application generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the application, as presented in the figures, is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

In the description of the present application, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or those that are conventionally put in use of the product of the application, are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the present application. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal," "vertical," "overhang," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present application, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.

In the present application, unless expressly stated or limited otherwise, a first feature "above" or "below" a second feature may include both the first and second features being in direct contact, as well as the first and second features not being in direct contact but being in contact with each other through additional features therebetween. Moreover, a first feature being "above," "over" and "on" a second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the first feature is higher in level than the second feature. The first feature being "under", "below" and "beneath" the second feature includes the first feature being directly under and obliquely below the second feature, or simply means that the first feature is less level than the second feature.

The characteristics and properties of the mixed acid regenerator burner of the present application for on-line adjustment of combustion intensity are described in further detail below with reference to examples.

As shown in fig. 1, 2, 3, 4, 5, 6 and 7, the embodiment of the present application provides a mixed acid regenerated roasting furnace burner for on-line adjusting the intensity of combustion, which is connected to a roasting furnace 600 to heat the roasting furnace 600; the mixed acid regenerated roasting furnace burner for on-line adjusting the intensity of combustion comprises an air pipe 200 and a combustion pipe 300 which are sequentially communicated, a gas pipe 100 with one end extending into the combustion pipe 300 through the air pipe 200 and a gas nozzle adjusting device 400 extending into the combustion pipe 300 after passing through the gas pipe 100;

Wherein, the air pipe 200 comprises an air delivery pipe 210 and an air input pipe 220 with one end connected with the outer wall of the air delivery pipe 210, and one end of the combustion pipe 300 is connected with one end of the air delivery pipe 210; the gas pipe 100 comprises a gas fixing ring plate 110 connected with the other end of the air conveying pipe 210, a gas conveying pipe 120 connected to one side, far away from the air conveying pipe 210, of the gas fixing ring plate 110, a gas input pipe 130, a guide pipe 140 and a gas spray pipe 150, wherein one end of the gas input pipe is connected with the outer wall of the gas conveying pipe 120, the other end of the guide pipe 140 extends into the air conveying pipe 210, the other end of the guide pipe extends to the position of the gas conveying pipe 120 and is respectively connected with the gas fixing ring plate 110 and the gas conveying pipe 120 through the guide fixing ring plate 160, one end of the gas spray pipe 150 penetrates through the air conveying pipe 210 and extends into the combustion pipe 300, and the other end of the gas spray pipe 150 extends into the guide pipe 140.

The gas nozzle adjusting device 400 comprises a gas nozzle adjusting plate 410 connected with and closing one end of the gas conveying pipe 120 far away from the air conveying pipe 210, a transmission screw 420, a nut 430 and a gas telescopic pipe 440, wherein one end of the transmission screw 420 is connected with one end of the gas nozzle adjusting plate through threads and penetrates through the gas nozzle adjusting plate 410, one end of the nut 430 is connected with the nut 440 through a threaded sleeve on the transmission screw 420, the other end of the gas telescopic pipe 440 penetrates through the gas spraying pipe 150 to extend into the combustion pipe 300, the outer wall of the gas spraying pipe is connected with an annular gas adjusting baffle 450, the top wall and the bottom wall of the nut 430 are respectively connected with a nut supporting plate 460, the top wall and the bottom wall of the gas spraying pipe 150 are respectively provided with a strip-shaped hole 151 extending along the length direction of the gas spraying pipe, and the two nut supporting plates 460 respectively penetrate through the two strip-shaped holes 151 and then slide to press against the inner wall of the guide pipe 140; one end of the gas nozzle adjusting plate 410, which is far away from the gas conveying pipe 120, is connected with a protective sleeve 470 sleeved on the transmission screw 420, the inner side of the protective sleeve 470 is provided with a compression ring 480 sleeved on the transmission screw 420, and the transmission screw 420 is also sleeved with a sealing ring 490 respectively propping against the compression ring 480 and the protective sleeve 470; the top wall and the bottom wall of the gas telescopic pipe 440 are respectively connected with a telescopic pipe supporting plate 441 which slides to press against the inner wall of the gas spraying pipe 150, the inner wall of the gas telescopic pipe 440 is connected with a baffle 442, and when the gas telescopic pipe 440 moves along the axial direction of the transmission screw 420, the baffle 442 presses against the end part of the transmission screw 420 to limit the position of the gas telescopic pipe 440; the gas shower adjustment plate 410 is connected to a protection cover covering the protection sleeve 470.

The combustion tube 300 is internally provided with an air distribution plate 500 sleeved on the gas tube 100, the air distribution plate 500 comprises an air distribution plate 510 with a middle hole 520 arranged in the middle, a gap is reserved between the inner wall of the middle hole 520 and the outer wall of the gas spray tube 150, eight air distribution holes 530 which are arranged at intervals along the circumferential direction of the air distribution plate 510 are arranged on the air distribution plate 510, the outer wall of the gas spray tube 150 is connected with a spray tube fixing plate 540, the air distribution plate 510 is connected with the spray tube fixing plate 540 through bolts which are arranged at intervals, the inner wall of the combustion tube 300 is provided with a circular seam plate 550 fixedly sleeved on the outer side of the air distribution plate 500, and a circular seam gap 560 is formed between the circular seam plate 550 and the air distribution plate 500; the inner diameter of the combustion tube 300 gradually increases as it gets farther from the air tube 200.

The embodiment of the application provides a mixed acid regenerating roasting furnace burner which is connected to the furnace waist of a roasting furnace 600 when in use and is used for adjusting the intensity of combustion on line, a gas input pipe 130 and an air input pipe 220 are respectively connected with a gas pipeline and a combustion air pipeline, the gas and the combustion air are respectively led into the gas input pipe 130 and the air input pipe 220 through the gas pipeline and the combustion air pipeline, the gas is further sprayed into a combustion pipe 300 through a gas conveying pipe 120, a guide pipe 140 and a gas spray pipe 150 of the gas input pipe 130, the air enters the combustion pipe 300 through the air input pipe 220 and the air conveying pipe 210 to be mixed and ignited with the gas and then is led into the furnace waist of the roasting furnace 600 to be combusted to form flame, when the intensity of combustion needs to be adjusted, an operator takes down a protective cover to use a tool to rotate a transmission screw 420, when the driving screw 420 rotates, the nut 430 is driven to move along the axial direction thereof by threads, so that the gas telescopic pipe 440 connected with the nut 430 is driven to move along the axial direction towards the direction approaching or separating from the gas spray pipe 150, so that the annular gas adjusting baffle 450 connected with the outer wall of one end of the gas telescopic pipe 440 extends to the combustion pipe 300 moves towards the direction approaching or separating from the gas spray pipe 150, the gas flow rate and the gas spraying direction sprayed by the gas spray pipe 150 are adjusted by adjusting the distance between the gas adjusting baffle 450 and the end part of the gas spray pipe 150, when the distance between the gas adjusting baffle 450 and the gas spray pipe 150 is large, the gas sprayed by the gas adjusting baffle 450 is less blocked by the gas spray pipe 150, at the moment, the gas flow rate distributed by the gas spray pipe 150 is small, the gas spraying angle is parallel to the moving direction of combustion air, at the moment, the intensity of gas and air combustion is low, when the distance between the gas adjusting baffle 450 and the gas spraying pipe 150 is reduced, the blocking of the gas sprayed by the gas adjusting baffle 450 to the gas spraying pipe 150 is gradually increased, so that the gas flow rate dispensed by the gas spraying pipe 150 is gradually increased, the gas spraying angle is gradually converted into a direction perpendicular to the moving direction of the combustion air, and the intensity of gas and air combustion is gradually increased at the moment, thereby realizing the intensity adjustment of the intensity of combustion, influencing the flame combustion intensity and flame temperature of the burner, adapting to the different fuel composition differences by combining the field conditions of the roasting furnace 600 and the flame structure with the diameter structure differences of the roasting furnace 600, enabling the flow rate and temperature of the flame spraying combustion channel to adapt to the field use conditions, and enhancing the rotational flow speed of the flue gas in the roasting furnace to realize the following beneficial effects: 1. the residence time of the flue gas in the roasting furnace is increased, the waste acid liquid is fully roasted to reduce energy consumption, and the waste acid liquid is fully roasted to generate solid substances in the waste acid liquid so as to dry and precipitate residues, and the interior is free of electrolyte, so that the purpose of reducing corrosion of the waste acid to the roasting furnace is achieved, and the service life of the roasting furnace is prolonged.

The air distribution plate 500 comprises an air distribution plate 510 with a middle hole 520 arranged in the middle, a gap is formed between the inner wall of the middle hole 520 and the outer wall of the gas spray pipe 150, eight air distribution holes 530 are arranged on the air distribution plate 510 at intervals along the circumferential direction of the air distribution plate, a circular seam plate 550 fixedly sleeved on the outer side of the air distribution plate 500 is arranged on the inner wall of the combustion pipe 300, and a circular seam gap 560 is formed between the circular seam plate 550 and the air distribution plate 500; the primary distribution of wind power can be realized by utilizing the gap between the inner wall of the middle hole 520 and the outer wall of the gas jet pipe 150, the secondary distribution of wind power can be realized by utilizing the air distribution holes 530 on the air distribution plate 510, and the tertiary distribution of wind power can be realized by utilizing the annular gap 560 formed between the annular gap plate 550 and the air distribution plate 500, so that the tertiary distribution of combustion air can be realized by utilizing the air distribution plate 500, and the sufficient mixed combustion of the combustion air and the gas can be ensured; the inner diameter of the combustion tube 300 gradually increases along with the distance from the air tube 200, so that flame flow after combustion air and gas are mixed and combusted can be promoted, and the rotational flow speed of flue gas in the roasting furnace is enhanced.

In addition, the top wall and the bottom wall of the nut 430 are respectively connected with a nut support plate 460, the top wall and the bottom wall of the gas spray pipe 150 are respectively provided with a strip-shaped hole 151 extending along the length direction of the gas spray pipe 150, the two nut support plates 460 respectively penetrate through the two strip-shaped holes 151 and then slide to press against the inner wall of the guide pipe 140, the top wall and the bottom wall of the gas spray pipe 440 are respectively connected with a telescopic pipe support plate 441 which slides to press against the inner wall of the gas spray pipe 150, the circumferential positions of the nut 430 and the gas spray pipe 440 can be defined by utilizing the cooperation of the nut support plate 460 and the telescopic pipe support plate 441, the stable axial movement of the gas spray pipe 440 is driven to adjust the distance between the gas adjusting baffle 450 and the gas spray pipe 150 when the driving screw 420 rotates, and the stable position of the gas adjusting baffle 450 connected by the gas spray pipe 440 is ensured. The inner wall of the gas telescopic pipe 440 is connected with the baffle 442, when the gas telescopic pipe 440 moves along the axial direction of the transmission screw 420, the baffle 442 is pressed against the end part of the transmission screw 420 to limit the position of the gas telescopic pipe 440, the range of the axial movement of the gas telescopic pipe 440 can be limited by utilizing the cooperation of the baffle 442 and the transmission screw 420, and the gas telescopic pipe 440 is prevented from driving the gas adjusting baffle 450 to seal the gas spray pipe 150 when moving along the axial direction.

The embodiments described above are some, but not all embodiments of the application. The detailed description of the embodiments of the application is not intended to limit the scope of the application, as claimed, but is merely representative of selected embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

Claims

1. The mixed acid regenerated roasting furnace burner is characterized by comprising an air pipe and a combustion pipe which are communicated with each other, a gas pipe with one end penetrating through the air pipe and extending into the combustion pipe, and a gas nozzle adjusting device penetrating through the gas pipe and extending into the combustion pipe; the gas nozzle adjusting device comprises a gas nozzle adjusting plate connected to the gas pipe, a transmission screw with one end rotatably penetrating through the gas nozzle adjusting plate, a nut sleeved on the transmission screw through threads, a gas telescopic pipe with one end connected with the nut, and an annular gas adjusting baffle connected to the inner wall and the outer wall of the combustion pipe, wherein at least one nut supporting plate in sliding fit with the inner wall of the gas pipe is connected to the outer wall of the nut, and a wind distribution disc sleeved on the outer side of the gas pipe is arranged in the combustion pipe.

2. The burner of the mixed acid regenerated roasting furnace for online adjusting the intensity of combustion according to claim 1, wherein the air pipe comprises an air conveying pipe and an air input pipe connected to the outer wall of the air conveying pipe, and one end of the combustion pipe is connected with one end of the air conveying pipe.

3. The burner of the mixed acid regenerating roasting furnace for on-line adjusting the intensity of combustion according to claim 2, wherein the gas pipe comprises a gas fixing ring plate connected with the other end of the air conveying pipe, a gas conveying pipe connected to one side of the gas fixing ring plate far away from the air conveying pipe, a gas input pipe connected to the outer wall of the gas conveying pipe, a guiding pipe and a gas spray pipe with the outer wall connected with the end face of the guiding pipe, one end of the guiding pipe stretches into the air conveying pipe, the other end of the guiding pipe extends to the position of the gas conveying pipe and is respectively connected with the gas fixing ring plate and the gas conveying pipe through the guiding fixing ring plate, one end of the gas spray pipe extends into the combustion pipe, and the other end of the gas spray pipe extends into the guiding pipe.

4. The mixed acid regenerated roasting furnace burner capable of adjusting the intensity of combustion on line according to claim 3, wherein the gas nozzle adjusting plate is connected with and seals one end of the gas conveying pipe far away from the air conveying pipe, one end of the gas nozzle adjusting plate far away from the gas conveying pipe is connected with a protection sleeve sleeved on the transmission screw, a compression ring sleeved on the transmission screw is arranged on the inner side of the protection sleeve, and sealing rings respectively propping against the compression ring and the protection sleeve are further sleeved on the transmission screw.

5. The burner of the mixed acid regenerated roasting furnace for online adjustment of the intensity of combustion according to claim 4, wherein the gas spray pipe is provided with a strip-shaped hole extending along the length direction of the gas spray pipe, and the nut support plate passes through the strip-shaped hole and then slides to press against the inner wall of the guide pipe.

6. The burner of the mixed acid regenerated roasting furnace for online adjusting the intensity of combustion according to claim 4, wherein the outer wall of the gas telescopic pipe is connected with at least one telescopic pipe supporting plate which is in sliding contact with the inner wall of the gas spraying pipe.

7. The burner for the mixed acid regenerated roasting furnace for online adjustment of the intensity of combustion according to claim 1, wherein a baffle is connected to the inner wall of the gas telescopic tube, and the gas telescopic tube is limited in position by pressing the baffle against the end of the driving screw when moving along the axial direction of the driving screw.

8. The burner of the mixed acid regenerated roasting furnace for online adjustment of the intensity of combustion according to claim 3, wherein the air distribution disc comprises an air distribution plate with a middle hole in the middle, a plurality of air distribution holes are formed in the air distribution plate, and the outer wall of the gas spray pipe is connected with a spray pipe fixing plate connected with the air distribution plate.

9. The burner of the mixed acid regenerated roasting furnace for online adjusting the intensity of combustion according to claim 8, wherein the inner wall of the combustion tube is provided with a circular seam plate fixedly sleeved on the outer side of the air distribution disc, and a circular seam gap is formed between the circular seam plate and the air distribution disc.

10. The mixed acid regenerative burner tip for an on-line adjustment of combustion intensity according to claim 1, wherein an inner diameter of the combustion tube gradually increases with distance from the air tube.