A device for preventing slagging and blocking of a sludge treatment boiler

Abstract

The application discloses a slagging anti-blocking device for sludge treatment boiler, which comprises an ignition tank, an air pipe, a gas pipe, a first electromagnetic valve, a flame arrester, a pulse tank, a spraying pipe and an air compressor, the air compressor is connected with a shunt box, the shunt box is matched with a first branch and a second branch, the first branch is connected with the ignition tank, a second electromagnetic valve is installed on the first branch, a third electromagnetic valve and a check valve are installed on the second branch, the flame arrester is also installed on the first branch, a sweeping device is connected with the second branch, the check valve is arranged between the third electromagnetic valve and the sweeping device, the spraying pipe vertically penetrates through the sweeping device, high-speed airflow sprayed by the sweeping device acts on the spraying pipe, a rotating cleaning device is installed at the lower part of the spraying pipe, and the elbow position of the spraying pipe is located in the rotating cleaning device; the device can prevent smoke dust particles from entering reversely.

Description

TECHNICAL FIELD

[0001] The present application relates to a kind of for sludge treatment boiler soot blowing anti-blocking device. BACKGROUND

[0002] A large amount of fly ash is generated in the process of sludge incineration in sludge incineration boiler, and the soot blowing device system of gas pulse device is used for soot blowing of boiler heating surface. In the long-term operation process of the soot blowing device system pipeline and components, due to the leakage of boiler flue gas into the soot blowing device system, the phenomenon of pipeline, pipe fitting, equipment component ash and water accumulation and blockage corrosion will occur. At present, the garbage incineration boiler soot blowing device only sets up gas blasting system, without fully considering the smoke dust particulate matter, which will cause the blockage of equipment system and even corrosion. Compared with pure coal combustion boiler, it is more likely to cause serious soot blowing of flue heating surface, and even the blowing port of soot blowing device is blocked, which affects the normal operation of soot blowing system and causes certain hidden danger to the safe and economic operation of boiler. The soot blowing system lacks isolation measures to prevent flue gas leakage and backflow in system design, which causes serious system blockage in the operation process of soot blowing device system, directly affecting the safe and economic operation of boiler.

[0003] Based on the above problems, we design a kind of for sludge treatment boiler soot blowing anti-blocking device that can prevent smoke dust particulate matter from entering in reverse. SUMMARY

[0004] The technical problem to be solved by the present application is to provide a kind of for sludge treatment boiler soot blowing anti-blocking device that can prevent smoke dust particulate matter from entering in reverse.

[0005] To solve the above problems, the technical scheme adopted by the present application is as follows:

[0006] A kind of for sludge treatment boiler soot blowing anti-blocking device, comprising,

[0007] Ignition tank, ignition tank is equipped with electrically controlled igniter, mixed gas enters ignition tank and is ignited by electrically controlled igniter,

[0008] Air pipe, the air pipe is connected with the ignition tank, and combustion-supporting air is transported to the ignition tank through the air pipe,

[0009] Gas pipe, the gas pipe is also connected with the ignition tank, and the gas for combustion is transported to the ignition tank through the gas pipe,

[0010] First electromagnetic valve, the first electromagnetic valve is installed on the air pipe and the gas pipe,

[0011] Fire arrester, the fire arrester is installed on the air pipe and the gas pipe, and located between the first electromagnetic valve and the ignition tank,

[0012] Pulse tank, a pipeline is connected between the pulse tank and the ignition tank,

[0013] The injection pipe is installed at the bottom of the pulse tank, is a bend pipe, and is inserted into the boiler at the end far from the pulse tank, and further comprises,

[0014] The air compressor is connected with a shunt box at the air outlet end, the shunt box is matched with a first branch and a second branch, the first branch is connected with the ignition tank, a second electromagnetic valve is installed on the first branch, a third electromagnetic valve and a one-way valve are installed on the second branch, a flame arrester is also installed on the first branch and is located between the second electromagnetic valve and the ignition tank,

[0015] The second branch is connected with the air sweeping device, the one-way valve is arranged between the third electromagnetic valve and the air sweeping device, the injection pipe vertically penetrates through the air sweeping device, and the high-speed airflow ejected from the air sweeping device acts on the injection pipe,

[0016] The rotating cleaning device is installed at the lower part of the injection pipe, and the bend pipe position of the injection pipe is located in the rotating cleaning device.

[0017] Preferably, the air pipe and the gas pipe are oppositely arranged, so that the air entering from the air pipe and the gas entering from the gas pipe are opposite in the ignition tank.

[0018] Preferably, the first branch is connected to the end of the ignition tank, the high-speed airflow input from the first branch is opposite to the air and the gas, and the mixed gas is pushed towards the igniter.

[0019] Preferably, the air sweeping device comprises a ring-shaped body, an annular air duct is formed in the inside of the body, the outside of the body is connected with the second branch, the injection pipe penetrates through the center of the body, a plurality of air blowing nozzles are annularly arranged on the inner wall of the body, the air blowing nozzles are communicated with the injection pipe, and the air blowing nozzles are tangent to the injection pipe.

[0020] Preferably, a plurality of wind baffles are annularly arranged in the inside of the body, and the wind baffles shield the communication position of the air blowing nozzles and the body.

[0021] Preferably, the rotating cleaning device includes a straight pipe connected to the boiler, with the end of the straight pipe inserted into the boiler flush with the boiler's heating surface. A frame plate is installed at the bottom of the straight pipe, and a motor is mounted through the frame plate. The motor is connected to a drive shaft, which is coaxial with and passes through the straight pipe. A jet pipe is inserted downwards from the top of the straight pipe and is coaxial with it. The drive shaft passes through the jet pipe, and a bearing and a shaft seal are fitted between the drive shaft and the straight pipe. A first shaft seal is installed at the contact point between the drive shaft and the jet pipe. A cover plate is fitted between the straight pipe and the jet pipe. A brush is installed at the end of the drive shaft that passes through the jet pipe. The brush is fitted with a cover. Under normal conditions, the cover seals the opening of the jet pipe. The drive shaft is driven by a motor to rotate, and the brush sweeps the ash accumulated on the boiler heating surface. When the mixed gas is ignited in the ignition canister, the high-speed airflow ejected from the pulse canister impacts the cover, causing it to open. At the same time the cover opens, the brush detaches from the boiler heating surface, and the high-speed airflow that impacts blows air onto the boiler heating surface.

[0022] Preferably, the brush includes a slider with multiple insertion holes on its end face. A drive shaft passes through the slider, and a bolt is provided at the end of the drive shaft. A limit nut is fitted on the bolt. A stepped surface is provided on the end of the slider facing the limit nut, and a spring is supported by the stepped surface. The spring acts on the limit nut. A slide bar is provided on the inner wall of the slider. A groove for the slide bar is provided on the outer wall of the drive shaft. A mounting bracket is provided on the outer wall of the slider. Two or more mounting brackets are arranged in a ring. The surface of the mounting bracket is provided with mounting holes, through which mounting seats are installed. Metal bristles are installed in the mounting seats. The mounting holes on two adjacent mounting brackets are staggered. A plug is provided on the end face of the cover facing the slider. The plug is inserted into the insertion hole and then fixed.

[0023] Preferably, the opening of the blowpipe is machined with a tapered inner contact surface, and the cap has an outer contact surface that fits the inner contact surface.

[0024] Preferably, a conical return flow hole is provided at the end of the cover facing the blowpipe, and a conical flow guide is provided on the inner wall of the blowpipe. The air outlet of the flow guide corresponds to the return flow hole. When the cover is pushed open by the high-speed airflow, the high-speed airflow is returned to the boiler heating surface after passing through the return flow hole.

[0025] Preferably, an anti-loosening screw is installed at the end of the bolt, and a preload spring is fitted between the anti-loosening screw and the limiting nut.

[0026] The working principle of this device is as follows:

[0027] This equipment operates intermittently, meaning it cleans the ash buildup on the boiler's heating surfaces periodically.

[0028] During deflagration and soot blowing, combustion-supporting air is introduced through the air pipe, and combustion gas (acetylene gas) is introduced through the gas pipe. The air and combustion gas are mixed in the ignition canister and then ignited by the igniter. After ignition, the gas expands and enters the pulse canister. After passing through the pulse canister, it is ejected through the jet pipe. The high-speed airflow blows away the ash deposits on the boiler heating surface.

[0029] When the gas-fired soot blowing machine stops, the motor starts and drives the drive shaft to rotate. The brush continuously cleans the ash accumulated on the boiler heating surface. The purpose of cleaning is to remove or loosen the stubborn ash so that it can be easily blown away during the next deflagration soot blowing.

[0030] Considering that the cover rotates relative to the blowpipe, resulting in gaps, a sweeping air device was designed. This device continuously outputs airflow during non-combustion soot blowing. The airflow is delivered through a dual channel, the first branch and the second branch. The airflow from the second branch forms an air curtain inside the blowpipe through the sweeping air device, preventing particulate matter from flowing backward through the blowpipe and into the pulse canister and ignition canister. Combined with the airflow blown in from the first branch, the two airflows converge and are discharged from the gap between the cover and the blowpipe. The resulting external exhaust flow further prevents particulate matter from entering the equipment, achieving both prevention and treatment effects.

[0031] The beneficial effects of this invention are:

[0032] This device utilizes a sweeping air system to generate airflow within the equipment during non-explosive ash blowing. The airflow is discharged outward through the gaps in the blowpipe and the cover, forming an outward airflow that prevents particulate matter from entering the equipment and thus avoids equipment damage caused by particulate matter entering.

[0033] This device uses a rotating cleaning device to sweep the boiler's heating surface, and in conjunction with intermittent deflagration soot blowing, it effectively removes the ash adhering to the boiler's heating surface. It also ensures that emergency ash cleaning can be carried out in the event of a gas shortage, thus guaranteeing the boiler's heating efficiency.

[0034] This device utilizes the shock wave generated by deflagration to make the brush slide. The sliding of the brush causes the metal bristles to impact with the boiler's heating surface, which helps to shake off the particles attached to the metal bristles and ensures the cleaning effect of the metal bristles. Attached Figure Description

[0035] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0036] Figure 1 This is a schematic diagram of the structure of the present invention;

[0037] Figure 2 This is a cross-sectional view of the air-sweeping device;

[0038] Figure 3 This is a cross-sectional view of the rotating cleaning device;

[0039] Figure 4 for Figure 3 A magnified view of a portion at point A;

[0040] Figure 5 for Figure 3 A magnified view of the area at point B;

[0041] Figure 6 This is a partial schematic diagram of the drive shaft;

[0042] Figure 7 This is a 3D view of the slider;

[0043] Figure 8 This is a diagram illustrating how the cap was opened by an impact. Detailed Implementation

[0044] All features disclosed in this specification, or all steps in all disclosed methods or processes, may be combined in any way, except for mutually exclusive features and / or steps.

[0045] Any feature disclosed in this specification (including any appended claims, abstract, and drawings) may be replaced by other equivalent or similar features for a similar purpose, unless specifically stated otherwise. That is, unless specifically stated otherwise, each feature is merely one example of a series of equivalent or similar features.

[0046] In the description of this invention, it should be understood that the terms "one end", "the other end", "outer side", "upper", "inner side", "horizontal", "coaxial", "center", "end", "length", "outer end", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this invention.

[0047] Furthermore, in the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0048] In this invention, unless otherwise explicitly specified and limited, the terms "set," "socket," "connect," "through," and "plug-in" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0049] See Figure 1 and Figure 3 The image shown is a preferred embodiment of the present invention.

[0050] Ignition canister 1 is equipped with an electrically controlled igniter 18. After the mixed gas enters the ignition canister 1, it is ignited by the electrically controlled igniter 18.

[0051] Air pipe 2, which is connected to ignition canister 1, supplies combustion air to ignition canister 1 through air pipe 2.

[0052] Gas pipe 3, which is also connected to ignition canister 1, supplies combustion gas to ignition canister 1 through gas pipe 3.

[0053] The first solenoid valve 4 is installed on both the air pipe 2 and the gas pipe 3.

[0054] The flame arrester 88 is installed on the air pipe 2 and the gas pipe 3, and is located between the first solenoid valve 4 and the ignition canister 1. The purpose of the flame arrester 88 is to prevent the gas in the ignition canister 1 from impacting the first solenoid valve 4 after it is ignited, thus providing a protective function.

[0055] Pulse canister 5, and a pipe 51 connects pulse canister 5 to ignition canister 1.

[0056] A blowpipe 6 is installed at the bottom of the pulse tank 5. The blowpipe 6 is a bent pipe, with the end of the blowpipe 6 away from the pulse tank 5 inserted into the boiler 7. It also includes...

[0057] An air compressor 8 has a distribution box 81 connected to its outlet. The distribution box 81 has a first branch 82 and a second branch 83. The first branch 82 connects to the ignition canister 1. A second solenoid valve 84 is installed on the first branch 82, and a third solenoid valve 85 and a check valve 86 are installed on the second branch 83. A flame arrester 88 is also installed on the first branch 82, located between the second solenoid valve 84 and the ignition canister 1. The air compressor 8 is used to compress air and increase the gas flow rate. Increased gas flow rate improves the cleaning effect on the ignition canister 1 and the pulse canister 5. The flame arrester 88 protects the second solenoid valve 84.

[0058] The air-sweeping device 9 is connected to the second branch 83. A one-way valve 86 is located between the third solenoid valve 85 and the air-sweeping device 9. The blowpipe 6 passes vertically through the air-sweeping device 9. The high-speed airflow ejected from the air-sweeping device 9 acts on the blowpipe 6. The air-sweeping device 9 is activated when the ignition canister 1 is not in operation.

[0059] A rotating cleaning device 10 is installed at the lower part of the blowpipe 6, and the bend of the blowpipe 6 is located inside the rotating cleaning device 10.

[0060] The rotary cleaning device 10 is sufficient to meet the conventional ash removal needs when the boiler is not running at full power. When the gas deflagration generates a shock wave, the rotary cleaning device 10 is pushed open. The shock wave after the deflagration blows ash onto the boiler heating surface. The ash is loosened by the operation of the rotary cleaning device 10. Combined with the shock wave formed after the gas deflagration, the ash can be removed more thoroughly.

[0061] See Figure 1 The present invention is shown as a preferred embodiment, wherein the air pipe 2 and the gas pipe 3 are arranged opposite to each other, such that the air entering from the air pipe 2 and the gas entering from the gas pipe 3 are opposed to each other in the ignition canister 1.

[0062] See Figure 1 The diagram shows a preferred embodiment of the present invention. The first branch 82 is connected to the end of the ignition canister 1. The high-speed airflow input into the first branch 82 counteracts the air and gas, and pushes the mixed gas toward the igniter 18. In the case of insufficient air combustion, the first branch 82 can be used to assist air intake and improve the air-gas mixture ratio. When the air-gas mixture ratio is sufficient, the first branch 82 is in a closed state.

[0063] See Figure 1 and Figure 2The diagram shows a preferred embodiment of the present invention. The air-sweeping device 9 includes an annular body 91, with an annular air duct 92 formed inside the body 91. The exterior of the body 91 connects to the second branch 83. The blowpipe 6 passes through the axis of the body 91. Multiple air nozzles 93 are annularly distributed on the inner wall of the body 91, communicating with the blowpipe 6 and being tangent to it. In the above embodiment, the air nozzles 93 are tangent to the blowpipe 6, avoiding airflow turbulence caused by multiple air nozzles 93 blowing against each other. The multiple tangent air nozzles 93 can form a better blocking and cleaning effect.

[0064] See Figure 2 As shown, multiple baffles 94 are arranged in a ring inside the main body 91. The baffles 94 block the connection between the air nozzle 93 and the main body 91. The arrangement of the baffles 94 allows the airflow entering from the second branch 83 to be more evenly distributed inside the main body 91, avoiding the second branch 83 from being directly opposite one of the air nozzles 93, and avoiding the situation where a single air nozzle 93 outputs more airflow than the other air nozzle 93.

[0065] See Figures 1 to 8 As shown, the rotating cleaning device 10 includes a straight pipe 101 connected to the boiler. The end of the straight pipe 101 inserted into the boiler is flush with the boiler's heating surface. A frame plate 102 is installed at the bottom of the straight pipe 101, and a motor 103 is installed through the frame plate 102. The motor 103 is connected to a drive shaft 104, which is coaxial with and passes through the straight pipe 101. A jet pipe 6 is inserted downwards from the top of the straight pipe 101 and is coaxial with it. The drive shaft 104 passes through the jet pipe 6. A bearing 105 and a shaft seal 106 are fitted between the drive shaft 104 and the straight pipe 101. The contact position between the drive shaft 104 and the jet pipe 6 is... A first shaft seal 107 is installed, and a cover plate 108 is fitted between the straight pipe 101 and the jet pipe 6. A brush 11 is provided at the end of the drive shaft 104 that passes through the jet pipe 6. The brush 11 is fitted with a cover 12. Under normal conditions, the cover 12 blocks the opening of the jet pipe 6. The drive shaft 104 is driven to rotate by the motor 103, and the brush 11 brushes the ash accumulated on the boiler heating surface. When the mixed gas is ignited in the ignition canister 1, the high-speed airflow ejected by the pulse canister 5 impacts the cover 12, causing the cover 12 to open. At the same time as the cover 12 opens, the brush 11 detaches from the boiler heating surface, and the high-speed airflow ejected blows air onto the boiler heating surface.

[0066] In this technical solution, the cover 12 normally blocks the opening of the blowpipe 6 to prevent particulate matter from entering the equipment when blowing ash before deflagration. When the deflagration generates a shock wave, the cover 12 is pushed open, which does not affect the shock wave from cleaning the attached ash.

[0067] With the cover 12 closed, the brush 11 loosens and cleans stubborn ash. During deflagration and ash blowing, the cover 12 is pushed open and the brush 11 is also pushed open. The brush 11 is removed from the boiler heating surface, so that the airflow generated by the deflagration can effectively clean the boiler heating surface.

[0068] See Figure 5 , Figure 6 and Figure 7 The image shows a preferred embodiment of the present invention. The brush 11 includes a slider 111. Multiple insertion holes 112 are provided on the end face of the slider 111. A drive shaft 104 passes through the slider 111. A bolt 113 is provided at the end of the drive shaft 104, and a limiting nut 114 is fitted onto the bolt 113. A stepped surface 115 is provided on the end of the slider 111 facing the limiting nut 114. A spring 116 is supported by the stepped surface 115 and acts on the limiting nut 114. A slide bar 121 is provided on the inner wall of the slider 111. The drive shaft 111... The outer wall of the 04 is provided with a groove 122 that matches the slider 121. The outer wall of the slider 111 is provided with a mounting bracket 117. Two or more mounting brackets 117 are arranged in a ring. The surface of the mounting bracket 117 is provided with mounting holes 118. A mounting seat 119 is installed through the mounting holes 118. A metal brush bristle 120 is installed in the mounting seat 119. The mounting holes 118 on two adjacent mounting brackets 117 are staggered. The end face of the cover 12 facing the slider 111 is provided with a plug rod 123. The plug rod 123 is inserted into the plug hole 112 and fixed.

[0069] In the above technical solution, after the deflagration soot blowing ends, the spring 116 pushes the slider 111 back to its original position. At this time, the metal bristles 120 act on the boiler heating surface again and impact the boiler heating surface. The impact force shakes off the particles attached to the metal bristles 120. Since the shock wave generated by deflagration soot blowing is intermittent, the metal bristles 120 are vibrated by contacting the boiler heating surface repeatedly, which helps the particles on the metal bristles 120 to fall off.

[0070] See Figure 5 As shown, the opening of the blowpipe 6 is machined with a tapered inner contact surface 661, and the cover 12 has an outer contact surface 1221 that fits the inner contact surface 661.

[0071] The conical inner and outer contact surfaces facilitate the 12-way repositioning of the cover after the deflagration and soot blowing, serving as a guide for the 12-way repositioning of the cover.

[0072] See Figure 5As shown, a conical return flow hole 1222 is provided at the end of the cover 12 facing the jet pipe 6, and a conical flow guide 662 is provided on the inner wall of the jet pipe 6. The air outlet of the flow guide 662 corresponds to the return flow hole 1222. When the cover 12 is pushed open by the high-speed airflow, the high-speed airflow is returned to the boiler heating surface after passing through the return flow hole 1222.

[0073] The flow guide 662 allows the airflow to be more concentrated on the cover 12, allowing the cover 12 to be opened to an effective distance. The return flow hole 1222 can reverse the airflow, allowing the airflow to be returned to the boiler heating surface after passing through the return flow hole 1222.

[0074] See Figure 5 and Figure 6 As shown, an anti-loosening screw 199 is installed at the end of the bolt 113, and a preload spring 198 is fitted between the anti-loosening screw 199 and the limiting nut 114.

[0075] The above technical solution mainly serves to prevent loosening of the limiting nut 114.

[0076] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A device for preventing clogging during soot blowing in a sludge treatment boiler, comprising: Ignition canister (1), which is equipped with an electrically controlled igniter (18). The mixed gas enters the ignition canister (1) and is ignited by the electrically controlled igniter (18). An air pipe (2) is connected to the ignition canister (1), and combustion air is supplied to the ignition canister (1) through the air pipe (2). Gas pipe (3), which is also connected to ignition canister (1), supplies combustion gas to ignition canister (1) through gas pipe (3). The first solenoid valve (4) is installed on both the air pipe (2) and the gas pipe (3). A flame arrester (88) is installed on the air pipe (2) and the gas pipe (3), and is located between the first solenoid valve (4) and the ignition canister (1). A pulse canister (5) is connected to an ignition canister (1) by a pipe (51). A blowpipe (6) is installed at the bottom of the pulse tank (5). The blowpipe (6) is a bent pipe, and the end of the blowpipe (6) away from the pulse tank (5) is inserted into the boiler (7). Its characteristics are: It also includes, An air compressor (8) is provided. A distribution box (81) is connected to the outlet of the air compressor (8). The distribution box (81) is equipped with a first branch (82) and a second branch (83). The first branch (82) is connected to the ignition canister (1). A second solenoid valve (84) is installed on the first branch (82). A third solenoid valve (85) and a check valve (86) are installed on the second branch (83). A flame arrester (88) is also installed on the first branch (82). The flame arrester (88) is located between the second solenoid valve (84) and the ignition canister (1). A sweeping device (9) is provided, the second branch (83) is connected to the sweeping device (9), a one-way valve (86) is provided between the third solenoid valve (85) and the sweeping device (9), and a blowpipe (6) passes vertically through the sweeping device (9). The high-speed airflow ejected from the sweeping device (9) acts on the blowpipe (6). A rotating cleaning device (10) is installed at the lower part of a blowpipe (6), with the bend of the blowpipe (6) located inside the rotating cleaning device (10).

2. The anti-clogging device for sludge treatment boiler soot blowing according to claim 1, characterized in that: The air pipe (2) and the gas pipe (3) are arranged opposite to each other, so that the air entering from the air pipe (2) and the gas entering from the gas pipe (3) collide in the ignition canister (1).

3. The anti-clogging device for sludge treatment boiler soot blowing according to claim 2, characterized in that: The first branch (82) is connected to the end of the ignition canister (1). The high-speed airflow input from the first branch (82) counteracts the air and gas, and pushes the mixed gas toward the igniter (18).

4. The anti-clogging device for sludge treatment boiler soot blowing according to claim 1, characterized in that: The air-sweeping device (9) includes an annular body (91), an annular air duct (92) is formed inside the body (91), and the outside of the body (91) is connected to the second branch (83). The blow pipe (6) passes through the axis of the body (91), and multiple air nozzles (93) are distributed in an annular pattern on the inner wall of the body (91). The air nozzles (93) are connected to the blow pipe (6) and are tangent to the blow pipe (6).

5. The anti-clogging device for sludge treatment boiler soot blowing according to claim 4, characterized in that: Multiple wind deflectors (94) are arranged in a ring inside the main body (91), and the wind deflectors (94) block the air nozzle (93) at the connection point between the main body (91).

6. The anti-clogging device for sludge treatment boiler soot blowing according to claim 1, characterized in that: The rotating cleaning device (10) includes a straight pipe (101) connected to the boiler. The end of the straight pipe (101) inserted into the boiler is flush with the boiler's heating surface. A frame plate (102) is installed at the bottom of the straight pipe (101). A motor (103) is installed through the frame plate (102). The motor (103) is connected to a drive shaft (104). The drive shaft (104) is coaxial with the straight pipe (101) and passes through the straight pipe (101). The jet pipe (6) is inserted downward from the top of the straight pipe (101) and is coaxial with the straight pipe (101). The drive shaft (104) passes through the jet pipe (6). A bearing (105) and a shaft seal (106) are fitted between the drive shaft (104) and the straight pipe (101). The contact position between the drive shaft (104) and the jet pipe (6) is... A first shaft seal (107) is installed at the location. A cover plate (108) is fitted between the straight pipe (101) and the jet pipe (6). A brush (11) is provided at the end of the drive shaft (104) that passes through the jet pipe (6). The brush (11) is fitted with a cover (12). Under normal conditions, the cover (12) blocks the opening of the jet pipe (6). The drive shaft (104) is driven to rotate by the motor (103). The brush (11) brushes the ash on the boiler heating surface. When the mixed gas is ignited in the ignition canister (1), the high-speed airflow ejected by the pulse canister (5) impacts the cover (12), causing the cover (12) to open. At the same time as the cover (12) opens, the brush (11) detaches from the boiler heating surface. The high-speed airflow that impacts blows air onto the boiler heating surface.

7. The anti-clogging device for sludge treatment boiler soot blowing according to claim 6, characterized in that: The brush (11) includes a slider (111), with multiple insertion holes (112) on the end face of the slider (111). The drive shaft (104) passes through the slider (111), and a bolt (113) is provided at the end of the drive shaft (104). A limit nut (114) is fitted on the bolt (113). A stepped surface (115) is provided on the end of the slider (111) facing the limit nut (114), and a spring (116) is supported by the stepped surface (115). The spring (116) acts on the limit nut (114). A slider strip (121) is provided on the inner wall of the slider (111), and a strip is provided on the outer wall of the drive shaft (104). A groove (122) is provided to cooperate with the slider (121). A mounting bracket (117) is provided on the outer wall of the slider (111). Two or more mounting brackets (117) are arranged in a ring. Mounting holes (118) are provided on the surface of the mounting bracket (117). Mounting seats (119) are installed through the mounting holes (118). Metal brush bristles (120) are installed in the mounting seats (119). The mounting holes (118) on two adjacent mounting brackets (117) are misaligned. A plug (123) is provided on the end face of the cover (12) facing the slider (111). The plug (123) is inserted into the plug hole (112) and fixed.

8. The anti-clogging device for sludge treatment boiler soot blowing according to claim 7, characterized in that: The opening of the blow pipe (6) is machined with a tapered inner contact surface (661), and the cover (12) has an outer contact surface (1221) that fits the inner contact surface (661).

9. The anti-clogging device for sludge treatment boiler soot blowing according to claim 8, characterized in that: A conical return flow hole (1222) is provided at the end of the cover (12) facing the blow pipe (6), and a conical flow guide (662) is provided on the inner wall of the blow pipe (6). The air outlet of the flow guide (662) corresponds to the return flow hole (1222). When the cover (12) is pushed open by the high-speed airflow, the high-speed airflow is returned to the boiler heating surface after passing through the return flow hole (1222).

10. The anti-clogging device for sludge treatment boiler soot blowing according to claim 9, characterized in that: An anti-loosening screw (199) is installed at the end of the bolt (113), and a preload spring (198) is fitted between the anti-loosening screw (199) and the limiting nut (114).

Images