A burner with an adjustable cyclone nozzle

Abstract

This invention discloses a burner with an adjustable swirl nozzle, relating to the field of high-efficiency combustion equipment technology. The invention utilizes a homogeneous feeding ring to drive several spiral pusher blades to rotate, causing the fuel to continuously tumble, disperse, and spread along the circumference of the main pipe during axial transport, mitigating the problem of fuel concentrating at the bottom due to gravity. A crushing component moves synchronously with the homogeneous feeding ring, breaking up any fuel agglomerates formed during transport and continuously agitating the fuel near the feed inlet, reducing the probability of agglomerated fuel clogging the feed inlet. Air is introduced into the air chamber through a secondary air inlet pipe, and the airflow generated by the nozzle entrains fuel from several feed inlets, ensuring that the fuel enters evenly from multiple positions along the circumference of the main pipe and mixes thoroughly with air and combustible gas. A stable basic swirl is formed by a directional swirl nozzle, and the swirl direction, swirl intensity, and outer channel flow area are adjusted using a variable-direction swirl nozzle and a variable-diameter outer nozzle, respectively.

Description

Technical Field

[0001] This invention relates to the field of high-efficiency combustion equipment technology, specifically a burner with an adjustable swirl nozzle. Background Technology

[0002] A burner is an industrial thermal device that converts the chemical energy of fuel into thermal energy. It is widely used in rotary kilns, industrial furnaces, boilers, and various heating devices. It typically introduces pulverized coal, natural gas, fuel oil, or alternative fuels into the combustion chamber, and, in conjunction with air supply and ignition devices, forms a continuous flame to meet the temperature requirements of processes such as calcination, heating, drying, or melting of materials. The burner's operating status directly affects heat release efficiency, furnace temperature distribution, and the continuity of the process, making it a crucial component of industrial thermal systems.

[0003] Existing burners struggle to maintain a uniform and thorough mixture of fuel and combustion-supporting gas when fuel type, feed rate, and operating load change. This can lead to localized high fuel concentrations, uneven combustion zone distribution, and flame patterns that don't match current operating conditions, thus affecting flame stability and fuel burnout. Furthermore, fluctuations in combustion conditions can cause increased localized temperature deviations and inadequate heat utilization, making it difficult to consistently meet the requirements for stable heating under different operating conditions. Summary of the Invention

[0004] The purpose of this invention is to provide a burner with an adjustable swirl nozzle to solve the problem of burner flame adjustment in the prior art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a burner with an adjustable swirl nozzle, comprising a main pipe, an auxiliary drive component and a multi-channel nozzle, wherein an igniter is installed at one end of the main pipe, a circumferential spray component is installed on the main pipe, a main air inlet pipe is installed on the main pipe, a homogenizing feed ring is installed on the circumferential spray component, and the auxiliary drive component is connected to the homogenizing feed ring in a driving connection. The multi-channel nozzle includes a variable diameter external air nozzle, a variable direction swirl air nozzle, and a directional swirl air nozzle, with the variable diameter external air nozzle installed at the other end of the main pipe; The directional swirl nozzle includes a directional nozzle sleeve, a fixing component, and an adjusting sleeve. Several rotating blades are rotatably mounted on the directional nozzle sleeve, and the rotating blades are movably connected to the adjusting sleeve. Several rotating components are mounted on the adjusting sleeve, and the rotating components are slidably connected to the directional nozzle sleeve. The fixing component passes through the adjusting sleeve and is connected to the directional nozzle sleeve. The outer wall of the directional nozzle sleeve is connected to the variable diameter outer nozzle, and the inner wall of the directional nozzle sleeve is connected to the directional swirl nozzle.

[0006] The burner is connected to an external control system, which can control the operation of the entire burner.

[0007] The fastener can be a plate with bolts. The bolts pass through the plate and the adjusting sleeve and are threaded to the directional nozzle sleeve. After the bolts are tightened, the plate and the adjusting sleeve fit tightly together. The fit between the two generates friction, which limits the deflection of the adjusting sleeve and achieves the fixing effect.

[0008] The auxiliary drive components include a motor, a drive wheel, and a belt. The drive wheel is mounted on the motor output shaft, and the drive wheel and the rotating sleeve are driven by a belt. The motor output shaft drives the drive wheel to rotate, and the drive wheel drives the rotating sleeve to rotate via the belt.

[0009] Furthermore, the variable diameter external nozzle includes an outer nozzle sleeve, which is installed inside the main pipe. A spray ring is installed inside the outer nozzle sleeve, and the spray ring has several circumferential adjustment ports. An inner nozzle sleeve is installed on the spray ring, and a sliding sleeve is slidably installed on the inner nozzle sleeve. An adjustment ring is installed on the sliding sleeve, and several adjustment shafts are installed on the adjustment ring. The adjustment shafts extend into the corresponding adjustment ports, and the inner nozzle sleeve and the variable diameter nozzle sleeve are connected by a first connecting rod.

[0010] Furthermore, the rotating blade includes a rotating shaft, which is rotatably mounted on an adjusting sleeve. A lever is installed at the bottom end of the rotating shaft, and one end of the lever has a round head. The adjusting sleeve has a circular groove that matches the shape of the round head, and the round head is movably connected to the circular groove.

[0011] Furthermore, the directional swirl nozzle includes a directional nozzle sleeve, on which several directional blades are mounted, and the directional nozzle sleeve is connected to the directional nozzle sleeve via a second connecting rod.

[0012] Furthermore, the rotating component includes a sleeve rod, which is mounted on the adjusting sleeve. A ball bearing is rolled at the bottom end of the sleeve rod, and the ball bearing is slidably connected to the directional nozzle sleeve.

[0013] Several directional blades on the directional nozzle sleeve maintain a fixed angle, ensuring that the airflow passing through the directional swirl nozzle forms a stable, fixed swirl, used to maintain the basic swirl intensity and flame stability. By rotating the adjusting sleeve, the circular groove on the adjusting sleeve drives a lever with a round head to deflect around a rotating axis, which in turn causes the corresponding blades to change their angle. After several blades deflect synchronously, the rotation direction of the airflow is changed, thereby adjusting parameters such as the flame diffusion degree and radial mixing state. After adjustment, the adjusting sleeve is fixed in place by a fixing component.

[0014] When adjusting the variable-diameter outer nozzle, the operator uses an adjustment tool to move the sliding sleeve axially along the inner nozzle sleeve. The sliding sleeve drives the adjustment ring and several adjustment shafts to move synchronously. Since the adjustment shaft extends into the corresponding adjustment port on the spray ring, and the front end of the adjustment shaft is tapered, the movement of the adjustment shaft relative to the adjustment port continuously changes the annular gap between the outer wall of the adjustment shaft and the inner wall of the adjustment port, thereby adjusting the effective flow area of ​​the annular gap. When the effective flow area decreases, the ejection velocity and jet volume of the outer airflow increase accordingly; when the effective flow area increases, the ejection range of the outer airflow expands accordingly, thus achieving adjustment of the outer flame morphology. Through the combined action of the fixed swirl channel, the adjustable swirl channel, and the variable-diameter outer air channel, the burner can adjust the flame specifications according to the needs of different operating conditions.

[0015] Furthermore, the homogenizing feed ring includes a front rotating seat, a rear rotating seat, and a rotating sleeve. The front rotating seat and the rear rotating seat are both mounted on the circumferential spraying component. The rotating sleeve is rotatably mounted between the front rotating seat and the rear rotating seat. The rotating sleeve is connected to the auxiliary drive component for transmission. The rear rotating seat is provided with a feed pipe.

[0016] Furthermore, the homogenizing feed ring is provided with several spiral pusher blades in the inner circumferential direction, and the homogenizing feed ring is also provided with crushing components in the inner circumferential direction.

[0017] Furthermore, the crushing component includes a vertical rod, the top of which is connected to a homogeneous feeding ring, and a crushing rod is installed at the bottom of the vertical rod, one end of which is conical.

[0018] When the burner starts, the control system first activates the external air supply device, allowing the mixture of air and combustible gas to enter the main pipe through the main air inlet pipe, and simultaneously starts the igniter. Subsequently, the external feeding device continuously feeds pulverized coal and other fuels through the feed pipe into the annular feeding space formed by the rear rotating seat, the circumferential spray nozzle, and the rotating sleeve.

[0019] The control system activates the auxiliary drive unit, and the motor output shaft drives the transmission wheel to rotate. The transmission wheel, via a belt, drives the rotating sleeve to rotate relative to the front and rear rotating seats. As the rotating sleeve rotates, several spiral pusher blades inside it rotate synchronously. These spiral pusher blades axially push the fuel entering the annular feeding space towards each feed inlet. Simultaneously, they lift, agitate, and redistribute the fuel at the bottom of the annular feeding space, reducing the concentration of fuel at the bottom due to gravity. This allows the fuel to gradually spread out and be conveyed forward along the circumference of the main pipe. During fuel conveying, the crushing components move synchronously with the rotating sleeve. The crushing rod utilizes its conical end structure to break up any fuel clumps near the feed inlet, preventing fuel from agglomerating and clogging the feed inlet.

[0020] Furthermore, the circumferential spraying component has an air chamber, a secondary air inlet pipe, several feed ports, and a spray head.

[0021] Simultaneously, the control system controls the air supply device to deliver air through the auxiliary air inlet pipe into the air chamber inside the circumferential inlet component. The air in the air chamber is then ejected at high speed from the nozzle into the main pipe. During this process, as the high-speed airflow passes the corresponding feed inlet, it entrains the fuel at the inlet and carries it into the main pipe. Because the feed inlets and nozzles are distributed circumferentially along the main pipe, fuel can enter the main pipe from different circumferential positions, reducing concentration deviation caused by fuel entering from one side and allowing for a more uniform mixing of fuel with the air and combustible gas inside the main pipe.

[0022] The fuel entering the main pipe is ignited and burned together with combustible gas and air under the action of the igniter. The flame and high-temperature airflow generated by the combustion move along the main pipe towards the multi-channel nozzles, and are sprayed outward through different channels formed between the directional swirl nozzle, the variable swirl nozzle, and the variable diameter outer nozzle.

[0023] Compared with the prior art, the beneficial effects of the present invention are: 1. By driving several spiral pusher blades to rotate through the homogeneous feeding ring, the fuel is continuously turned over, dispersed and spread out along the circumference of the main pipe while being transported axially. This reduces the problem of fuel being concentrated and deposited at the bottom due to gravity and improves the uniformity of feeding at each feed port.

[0024] 2. By having the crusher move synchronously with the homogeneous feeding ring, the agglomerated fuel formed during the conveying process is broken up and continuously disturbed near the feed inlet, reducing the probability of agglomerated fuel clogging the feed inlet and improving the stability of continuous feeding.

[0025] 3. Air is introduced into the air chamber through the auxiliary air intake pipe, and the airflow generated by the nozzle is used to entrain fuel at several feed ports, so that the fuel enters evenly from multiple positions around the main pipe and is fully mixed with air and combustible gas, improving the fuel concentration distribution and promoting uniform and complete combustion.

[0026] 4. A stable basic swirl is formed by directional swirl nozzles, and the swirl direction, swirl intensity and outer channel flow area are adjusted by using directional swirl nozzles and variable diameter outer nozzles respectively. The flame length and diffusion range can be adjusted according to the fuel type and combustion conditions, thereby improving the burner's adaptability to different operating conditions. Attached Figure Description

[0027] Figure 1 This is a perspective view of the burner of the present invention; Figure 2 This is a cross-sectional view of the burner of the present invention; Figure 3 This is a perspective view of the multi-channel nozzle of the present invention; Figure 4 This is a perspective view of the variable-direction swirl nozzle of the present invention; Figure 5 This is a perspective view of the rotating blade of the present invention; Figure 6 This is a perspective view of the rotating component of the present invention; Figure 7 This is a perspective view of the variable diameter external air nozzle of the present invention; Figure 8 This is a perspective view of the rotating sleeve of the present invention; Figure 9 This is a perspective view of the crushing component of the present invention; Figure 10 This is a cross-sectional view of the circumferential sprayed part of the present invention; Figure 11 For the present invention Figure 2 A magnified view of a portion of region A in the middle.

[0028] In the diagram: 1. Main pipe; 2. Multi-channel nozzle; 3. Auxiliary drive component; 4. Igniter; 5. Circumferential spray component; 6. Homogenizing feed ring; 7. Main air inlet pipe; 21. Variable diameter outer nozzle; 22. Variable direction swirl nozzle; 23. Directional swirl nozzle; 211. Outer nozzle sleeve; 212. Spray ring; 213. Adjusting shaft; 214. Adjusting ring; 215. Sliding sleeve; 216. Inner nozzle sleeve; 217. Adjusting port; 221. Rotating blade; 222. Adjusting sleeve; 223. Rotating component; 224. Fixed component. ; 225. Directional nozzle sleeve; 2211. Blade; 2212. Rotating shaft; 2213. Lever; 2214. Round head; 2231. Sleeve rod; 2232. Ball bearing; 231. Directional blade; 232. Directional nozzle sleeve; 51. Air chamber; 52. Feed inlet; 53. Spray head; 54. Secondary air inlet pipe; 61. Front rotating seat; 62. Rear rotating seat; 63. Rotating sleeve; 64. Feed pipe; 631. Spiral pusher blade; 632. Crushing part; 6321. Crushing rod; 6322. Vertical rod. Detailed Implementation

[0029] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0030] like Figures 1-7 and Figures 10-11The first embodiment of the present invention shown includes a burner with an adjustable swirl nozzle, comprising a main pipe 1, an auxiliary drive unit 3, and a multi-channel nozzle 2. An igniter 4 is mounted at one end of the main pipe 1. A circumferential spray nozzle 5 is mounted on the main pipe 1, and a main air inlet pipe 7 is mounted on the main pipe 1. A homogenizing feed ring 6 is mounted on the circumferential spray nozzle 5. The auxiliary drive unit 3 is connected to the homogenizing feed ring 6 via a transmission connection. The multi-channel nozzle 2 includes a variable-diameter outer nozzle 21, a variable-direction swirl nozzle 22, and a directional swirl nozzle 23. The variable-diameter outer nozzle 21 is mounted at the other end of the main pipe 1; the variable-direction... The swirl nozzle 22 includes a deflector sleeve 225, a fixing member 224, and an adjusting sleeve 222. Several rotating blades 221 are rotatably mounted on the deflector sleeve 225. The rotating blades 221 are movably connected to the adjusting sleeve 222. Several rotating members 223 are mounted on the adjusting sleeve 222. The rotating members 223 are slidably connected to the deflector sleeve 225. The fixing member 224 passes through the adjusting sleeve 222 and is connected to the deflector sleeve 225. The outer wall of the deflector sleeve 225 is connected to the variable diameter outer nozzle 21, and the inner wall of the deflector sleeve 225 is connected to the directional swirl nozzle 23.

[0031] The burner is connected to an external control system, which can control the operation of the entire burner.

[0032] The fastener 224 can be bolted to the plate. The bolt passes through the plate and the adjusting sleeve 222 and is threaded to the deflector sleeve 225. After the bolt is tightened, the plate and the adjusting sleeve 222 fit tightly together. The fit between the two generates friction, which restricts the deflection of the adjusting sleeve 222 and achieves the fixing effect.

[0033] The auxiliary drive component 3 includes a motor, a transmission wheel, and a belt. The transmission wheel is mounted on the output shaft of the motor. The transmission wheel and the rotating sleeve 63 are driven by a belt. The output shaft of the motor drives the transmission wheel to rotate, and the transmission wheel drives the rotating sleeve 63 to rotate via the belt.

[0034] The variable diameter external nozzle 21 includes an external nozzle sleeve 211, which is installed inside the main pipe 1. A spray ring 212 is installed inside the external nozzle sleeve 211. The spray ring 212 is provided with several adjustment ports 217 in a circumferential direction. An internal nozzle sleeve 216 is installed on the spray ring 212. A sliding sleeve 215 is slidably installed on the internal nozzle sleeve 216. An adjustment ring 214 is installed on the sliding sleeve 215. Several adjustment shafts 213 are installed on the adjustment ring 214. The several adjustment shafts 213 extend into the corresponding adjustment ports 217 respectively. The internal nozzle sleeve 216 and the variable direction nozzle sleeve 225 are connected by a first connecting rod.

[0035] The rotating blade 221 includes a rotating shaft 2212, which is rotatably mounted on an adjusting sleeve 222. A lever 2213 is installed at the bottom of the rotating shaft 2212. One end of the lever 2213 is provided with a round head 2214. The adjusting sleeve 222 is provided with a round groove that matches the shape of the round head 2214. The round head 2214 is movably connected to the round groove.

[0036] The directional swirl nozzle 23 includes a directional nozzle sleeve 232, on which several directional blades 231 are mounted. The directional nozzle sleeve 232 is connected to the directional nozzle sleeve 225 via a second connecting rod.

[0037] The rotating component 223 includes a sleeve rod 2231, which is mounted on the adjusting sleeve 222. A ball bearing 2232 is rolled at the bottom end of the sleeve rod 2231, and the ball bearing 2232 is slidably connected to the directional nozzle sleeve 225.

[0038] Several directional blades 231 on the directional nozzle sleeve 232 maintain a fixed angle, causing the airflow passing through the directional swirl nozzle 23 to form a stable fixed swirl, which is used to maintain the basic swirl intensity and flame stability. By rotating the adjusting sleeve 222, the circular groove on the adjusting sleeve 222 drives the lever 2213 with the round head 2214 to deflect around the rotating shaft 2212, and the rotating shaft 2212 drives the corresponding blades 2211 to change their angle. After several blades 2211 deflect synchronously, the rotation direction of the airflow is changed, thereby adjusting parameters such as the degree of flame diffusion and radial mixing state. After adjustment, the adjusting sleeve 222 is fixed by the fixing member 224.

[0039] When adjusting the variable-diameter outer nozzle 21, the operator uses an adjustment tool to move the sliding sleeve 215 axially along the inner nozzle sleeve 216. The sliding sleeve 215 drives the adjustment ring 214 and several adjustment shafts 213 to move synchronously. Since the adjustment shaft 213 extends into the corresponding adjustment port 217 on the spray ring 212, and the front end of the adjustment shaft 213 is conical, the movement of the adjustment shaft 213 relative to the adjustment port 217 can continuously change the annular gap between the outer wall of the adjustment shaft 213 and the inner wall of the adjustment port 217, thereby adjusting the effective flow area of ​​the annular gap. When the effective flow area decreases, the ejection velocity and jet volume of the outer airflow increase accordingly; when the effective flow area increases, the ejection range of the outer airflow expands accordingly, thereby achieving the adjustment of the outer flame morphology. Through the combined action of the fixed swirl channel, the adjustable swirl channel, and the variable-diameter outer air channel, the burner can adjust the flame specifications according to the needs of different operating conditions.

[0040] The homogenizing feed ring 6 includes a front rotating seat 61, a rear rotating seat 62, and a rotating sleeve 63. The front rotating seat 61 and the rear rotating seat 62 are both mounted on the circumferential spraying component 5. The rotating sleeve 63 is rotatably mounted between the front rotating seat 61 and the rear rotating seat 62. The rotating sleeve 63 is connected to the auxiliary drive component 3 for transmission. The rear rotating seat 62 is provided with a feed pipe 64.

[0041] The circumferential spraying component 5 has an air chamber 51, an auxiliary air inlet pipe 54, several feed inlets 52, and a spray head 53.

[0042] The control system controls the air supply device to send air through the auxiliary air inlet pipe 54 into the air chamber 51 inside the circumferential spray nozzle 5. The air in the air chamber 51 is then ejected at high speed from the nozzle 53 into the main pipe 1. During this process, when the high-speed airflow passes through the corresponding feed inlet 52, it entrains the fuel at the feed inlet 52 and carries it into the main pipe 1. Since the feed inlet 52 and the nozzle 53 are distributed circumferentially along the main pipe 1, the fuel can enter the main pipe 1 from different circumferential positions, reducing the concentration deviation caused by the fuel entering from one side and making the fuel mix more evenly with the air and combustible gas in the main pipe 1.

[0043] The fuel entering the main pipe 1 is ignited and burned together with combustible gas and air under the action of igniter 4. The flame and high-temperature airflow formed by the combustion move along the main pipe 1 toward the multi-channel nozzle 2, and are sprayed outward through different channels formed between the directional swirl nozzle 23, the variable swirl nozzle 22 and the variable diameter outer nozzle 21.

[0044] like Figures 8-9 The second embodiment of the present invention, shown, provides a homogenizing feed ring 6 that differs from the first embodiment. The difference lies in that the homogenizing feed ring 6 has a plurality of spiral pusher blades 631 arranged circumferentially within it, and a crusher 632 arranged circumferentially within it. The crusher 632 includes a vertical rod 6322, the top of which is connected to the homogenizing feed ring 6, and a crushing rod 6321 installed at the bottom of the vertical rod 6322. One end of the crushing rod 6321 is conical. The spiral pusher blades 631 axially push the fuel entering the annular feeding space toward each feed inlet 52. Simultaneously, they also lift, agitate, and redisperse the fuel located at the bottom of the annular feeding space, reducing the concentration of fuel at the bottom due to gravity, and allowing the fuel to gradually spread out and be conveyed forward along the circumference of the main pipe 1. The crushing rod 6321 uses its conical end to break up any fuel agglomerates near the feed inlet 52, preventing fuel from clumping and blocking the feed inlet 52.

[0045] The working principle of this invention is as follows: When the burner is started, the control system first controls the external air supply device to open, so that the mixture of air and combustible gas enters the main pipe 1 through the main air intake pipe 7, and at the same time, the igniter 4 is started. Subsequently, the external feeding device continuously feeds coal powder and other fuels through the feed pipe 64 into the annular feeding space formed by the rear rotating seat 62, the circumferential spraying element 5 and the rotating sleeve 63.

[0046] The control system activates auxiliary drive component 3, and the motor output shaft drives the transmission wheel to rotate. The transmission wheel, via a belt, drives the rotating sleeve 63 to rotate relative to the front rotating seat 61 and the rear rotating seat 62. As the rotating sleeve 63 rotates, several spiral pusher blades 631 located inside it rotate synchronously. The spiral pusher blades 631 axially push the fuel entering the annular feeding space towards each feed inlet 52. Simultaneously, they lift, tumble, and redistribute the fuel at the bottom of the annular feeding space, reducing the concentration of fuel at the bottom due to gravity, and allowing the fuel to gradually spread out and be conveyed forward along the circumference of the main pipe 1. During fuel conveying, the crushing component 632 moves synchronously with the rotating sleeve 63. The crushing rod 6321 uses its conical end structure to break up any fuel clumps near the feed inlet 52, preventing fuel from clumping and blocking the feed inlet 52.

[0047] Simultaneously, the control system controls the air supply device to deliver air through the auxiliary air inlet pipe 54 into the air chamber 51 inside the circumferential spray nozzle 5. The air in the air chamber 51 is then ejected at high speed from the nozzle 53 into the main pipe 1. During this period, when the high-speed airflow passes through the corresponding feed inlet 52, it entrains the fuel at the feed inlet 52 and carries it into the main pipe 1. Since the feed inlet 52 and the nozzle 53 are distributed circumferentially along the main pipe 1, the fuel can enter the main pipe 1 from different circumferential positions, reducing the concentration deviation caused by the fuel entering from one side, and making the fuel mix more evenly with the air and combustible gas in the main pipe 1.

[0048] The fuel entering the main pipe 1 is ignited and burned together with combustible gas and air under the action of igniter 4. The flame and high-temperature airflow formed by the combustion move along the main pipe 1 toward the multi-channel nozzle 2, and are sprayed outward through different channels formed between the directional swirl nozzle 23, the variable swirl nozzle 22 and the variable diameter outer nozzle 21.

[0049] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A burner with an adjustable swirl nozzle, characterized in that: The burner includes a main pipe (1), an auxiliary drive unit (3), and a multi-channel nozzle (2). An igniter (4) is installed at one end of the main pipe (1). A circumferential spraying element (5) is installed on the main pipe (1). A main air intake pipe (7) is installed on the main pipe (1). A homogenizing feed ring (6) is installed on the circumferential spraying element (5). The auxiliary drive unit (3) is connected to the homogenizing feed ring (6) in a transmission manner. The multi-channel nozzle (2) includes a variable diameter external air nozzle (21), a variable direction swirl air nozzle (22), and a directional swirl air nozzle (23), wherein the variable diameter external air nozzle (21) is installed at the other end of the main pipe (1); The directional swirl nozzle (22) includes a directional nozzle sleeve (225), a fixing member (224), and an adjusting sleeve (222). Several rotating blades (221) are rotatably mounted on the directional nozzle sleeve (225). The rotating blades (221) are movably connected to the adjusting sleeve (222). Several rotating members (223) are mounted on the adjusting sleeve (222). The rotating members (223) are slidably connected to the directional nozzle sleeve (225). The fixing member (224) passes through the adjusting sleeve (222) and is connected to the directional nozzle sleeve (225). The outer wall of the directional nozzle sleeve (225) is connected to the variable diameter outer nozzle (21). The inner wall of the directional nozzle sleeve (225) is connected to the directional swirl nozzle (23).

2. A burner with an adjustable swirl nozzle according to claim 1, characterized in that: The variable diameter external nozzle (21) includes an external nozzle sleeve (211), which is installed inside the main pipe (1). A spray ring (212) is installed inside the external nozzle sleeve (211). Several adjustment ports (217) are provided circumferentially on the spray ring (212). An inner nozzle sleeve (216) is installed on the spray ring (212). A sliding sleeve (215) is slidably installed on the inner nozzle sleeve (216). An adjustment ring (214) is installed on the sliding sleeve (215). Several adjustment shafts (213) are installed on the adjustment ring (214). Several adjustment shafts (213) extend into the corresponding adjustment ports (217). The inner nozzle sleeve (216) and the variable direction nozzle sleeve (225) are connected by a first connecting rod.

3. A burner with an adjustable swirl nozzle according to claim 2, characterized in that: The rotating blade (221) includes a rotating shaft (2212), which is rotatably mounted on an adjusting sleeve (222). A lever (2213) is installed at the bottom end of the rotating shaft (2212). One end of the lever (2213) is provided with a round head (2214). The adjusting sleeve (222) is provided with a circular groove that matches the shape of the round head (2214). The round head (2214) is movably connected to the circular groove.

4. A burner with an adjustable swirl nozzle according to claim 3, characterized in that: The directional swirl nozzle (23) includes a directional nozzle sleeve (232), on which a plurality of directional blades (231) are installed. The directional nozzle sleeve (232) is connected to the directional nozzle sleeve (225) via a second connecting rod.

5. A burner with an adjustable swirl nozzle according to claim 4, characterized in that: The rotating component (223) includes a sleeve rod (2231), which is mounted on an adjusting sleeve (222). A ball bearing (2232) is rolled at the bottom end of the sleeve rod (2231), and the ball bearing (2232) is slidably connected to the directional nozzle sleeve (225).

6. A burner with an adjustable swirl nozzle according to any one of claims 1-5, characterized in that: The homogenizing feed ring (6) includes a front rotating seat (61), a rear rotating seat (62), and a rotating sleeve (63). The front rotating seat (61) and the rear rotating seat (62) are both mounted on the circumferential spraying component (5). The rotating sleeve (63) is rotatably mounted between the front rotating seat (61) and the rear rotating seat (62). The rotating sleeve (63) is connected to the auxiliary drive component (3) for transmission. The rear rotating seat (62) is provided with a feed pipe (64).

7. A burner with an adjustable swirl nozzle according to claim 6, characterized in that: The homogenizing feed ring (6) is provided with a plurality of spiral pusher blades (631) in the inner circumferential direction, and the homogenizing feed ring (6) is provided with a crushing component (632) in the inner circumferential direction.

8. A burner with an adjustable swirl nozzle according to claim 7, characterized in that: The crushing component (632) includes a vertical rod (6322), the top end of which is connected to a homogeneous feeding ring (6), and a crushing rod (6321) is installed at the bottom end of the vertical rod (6322), one end of which is conical.

9. A burner with an adjustable swirl nozzle according to claim 8, characterized in that: The circumferential spraying component (5) has an air chamber (51), an auxiliary air inlet pipe (54) is installed on the circumferential spraying component (5), a plurality of feed inlets (52) are provided on the circumferential spraying component (5), and a spraying head (53) is provided on the circumferential spraying component (5).

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