Sound wave soot blower with blockage blowing mechanism

Abstract

The invention discloses a sound wave soot blower with a blocking blowing mechanism, and relates to the field of denitration flue gas soot blowing, the sound wave soot blower comprises a soot blowing mechanism and an anti-blocking mechanism, the soot blowing mechanism comprises a sound wave soot blowing assembly and a conduction pipe located on the outer side of the sound wave soot blowing assembly; the anti-blocking mechanism comprises a blocking blowing pipe communicated with the conduction pipe, a power piece is arranged in the blocking blowing pipe, a lifting piece is arranged on the outer side of the power piece, a smashing piece is arranged on the outer side of the lifting piece, a sealing piece is arranged at a pipe opening of the blocking blowing pipe, and a sealing disc is arranged on the surface of the sealing piece. Through the action of compressed air on the power part and the power transmission of the power part on the lifting part and the crushing part, firstly, the crushing part vibrates and crushes the hardened accumulated dust, then the sealing part is opened for final blockage blowing operation, blockage blowing is divided into two steps, the problem that the hardened accumulated dust is accumulated at a blockage blowing pipe opening and is not easy to clean is solved, and the blockage blowing efficiency is improved. And meanwhile, the blocking blowing efficiency of the conduction pipe is improved, and normal soot blowing operation of the sound wave soot blower is guaranteed.

Description

Technical Field

[0001] The invention relates to the field of denitrification flue gas soot blowing, in particular to a sonic soot blower with a blowing and blocking mechanism. Background Art

[0002] After the denitrification system of a coal-fired unit is put into operation, removing dust from the catalyst surface and ensuring the activity of the catalyst are the keys to stable denitrification operation. During operation, the flue gas carries a large amount of ash, and the sonic soot blower is often used to blow the denitrification flue gas to ensure the smooth operation of the denitrification process. Under the long-term operation of the boiler in the thermal power plant, as the operation time increases, it is inevitable that the conduction section of the sonic soot blower will be blocked. The horn section of the denitrification sonic soot blower is in the same plane as the flue wall of the denitrification reactor. When there is an uneven flow field inside the reactor flue, a large amount of fly ash enters the horn section. After a long time, the accumulated ash blocks the horn section, affecting the transmission of the sound waves of the sonic soot blower. The sonic soot blower loses its soot blowing function, causing the catalyst of the denitrification system to become calcified and poisoned, affecting the activity and service life of the catalyst. The ash blockage causes the system resistance to increase, the power consumption of the suction fan to increase, the catalytic efficiency of the catalyst to decrease, the amount of ammonia sprayed to increase, and the amount of ammonium bisulfate produced to increase, causing the air preheater to become calcified and blocked, resulting in the unit being shut down, affecting the denitrification operation. For this reason, a sonic soot blower with a blowing and blocking mechanism is proposed. Summary of the invention

[0003] In view of the above problems existing in the prior art, the present invention is proposed.

[0004] Therefore, the present invention aims to solve the problem in the prior art that the conducting section of the sonic soot blower is easily clogged by dust accumulation, thus affecting its normal use.

[0005] To solve the above technical problems, the present invention provides the following technical solutions: a sonic soot blower with a plugging blowing mechanism, comprising: a soot blowing mechanism, comprising a sonic soot blowing component and a conductive pipe located on the outer wall of the sonic soot blowing component; and

[0006] The anti-blocking mechanism comprises a blow-blocking pipe installed at a port on one side of the conducting pipe, a power part is arranged on the inner wall of the blow-blocking pipe, a lifting part is arranged on the outside of the power part, a crushing part is arranged on the outer edge of the surface of the lifting part, a closing part is arranged at the pipe opening of the blow-blocking pipe, and a sealing disk is arranged on the surface of the closing part;

[0007] The power member comprises a fixing frame fixed to the inner wall of the blow-out pipe, a rotating rod is passed through the center of the fixing frame, a guide groove is left on the surface of the rotating rod, and a rotating paddle is coaxially arranged at the bottom of the rotating rod;

[0008] The lifting member comprises a collar arranged outside the rotating rod, the inner wall of the collar is provided with a guide column matched with the guide groove, the outer periphery of the collar is provided with a lifting frame, the surface of the lifting frame is provided with a push rod, the outer wall of the lifting frame is provided with a guide block, and the outer side of the push rod is provided with a spring;

[0009] The crushing member comprises a rotating ring arranged on the outer ring of the lifting frame, a crushing sheet is arranged on the surface of the rotating ring, and a push column is arranged on the outer wall of the rotating ring;

[0010] The closure member includes a fixed plate arranged on the inner wall of the port of the blow-blocking tube, a baffle is arranged on the inner edge of the bottom of the fixed plate, a lever is arranged on the outer edge of the bottom of the baffle, a rotating plate is arranged at the lower part of the baffle, a groove matching with the lever is arranged on the surface of the rotating plate, a folding plate is arranged on the outer edge of the bottom surface of the rotating plate, a torsion spring is arranged on the outer wall of the folding plate, and a push block is arranged on the inner edge of the bottom surface of the rotating plate.

[0011] As a preferred solution of the sonic soot blower with a plugging blowing mechanism of the present invention, guide grooves are provided on both sides of the inner wall of the plugging blowing pipe, and a push groove is provided on the inner wall of the plugging blowing pipe located between the two guide grooves.

[0012] As a preferred solution of the sonic soot blower with a plugging blowing mechanism of the present invention, the rotating rod is rotationally matched with the fixing frame.

[0013] As a preferred solution of the sonic soot blower with a plugging blowing mechanism of the present invention, wherein: the guide groove is arranged in a spiral groove shape, and the guide column is movably embedded in the guide groove;

[0014] A plurality of blades are distributed on the outer annular array of the rotating paddle.

[0015] As a preferred solution of the sonic soot blower with a plugging blowing mechanism of the present invention, wherein: the rotating rod and the sleeve ring form a linkage mechanism through a guide column;

[0016] The guide block and the guide groove are in sliding fit;

[0017] The lifting frame is formed by connecting rods and an outer ring, the rods are distributed in an annular array outside the lifting frame, and top rods are fixed on the surfaces of the rods;

[0018] The lifting frame and the blow-blocking pipe form an elastic lifting structure through a spring.

[0019] As a preferred solution of the sonic soot blower with a plugging blowing mechanism of the present invention, wherein: the rotating ring and the lifting frame are movably connected;

[0020] The annular array of crushing pieces is arranged on the surface of the rotating ring, and the crushing pieces extend to the pipe opening of the blow-off pipe;

[0021] The crushing sheet penetrates through the sealing plate, and the sealing plate is movably connected to the fixed plate;

[0022] The push column is movably embedded in the push groove, and the push groove is inclined.

[0023] As a preferred solution of the sonic soot blower with a plugging blowing mechanism of the present invention, the outer edges of the surfaces of the fixed disk and the rotating disk are provided with notches in an annular array for the crushing pieces to rotate;

[0024] The baffles are hinged to the bottom surface of the fixed disk, and the baffles are distributed in a ring array at the bottom of the fixed disk;

[0025] A lever is integrally provided at the bottom of each baffle, and the baffle and the rotating disk form a linkage structure through the lever;

[0026] The pull groove is an arc groove;

[0027] The rotating disk and the plugging blow pipe form an elastic rotating structure through the torsion spring sheet.

[0028] As a preferred solution of the sonic soot blower with a plugging blowing mechanism described in the present invention, a connecting ring is further provided on the periphery of the rotating disk, a connecting groove which can cooperate with the connecting ring is provided at the pipe mouth of the plugging blowing pipe, and the connecting ring is movably embedded in the connecting groove.

[0029] As a preferred solution of the sonic soot blower with a plugging blowing mechanism of the present invention, a fixing block is further provided on the inner wall of the plugging blowing pipe;

[0030] One end of the torsion spring sheet is fixed to the folding plate, and the other end is fixed to the fixing block.

[0031] As a preferred solution of the sonic soot blower with a plugging blowing mechanism of the present invention, the push block is wedge-shaped, and the bottom surface of the push block is an inclined surface.

[0032] The beneficial effects of the present invention are as follows: the blowing and blocking pipe is connected to the compressed air system. When the dust accumulates and blocks the conduction pipe, the compressed air can act on the power parts. Under the power transmission of the power parts to the lifting parts and the crushing parts, the crushing parts first vibrate and crush the compacted dust, and then the closing parts are opened to perform the final blowing and blocking operation by compressed air. The blowing and blocking is divided into two steps, which solves the problem that the compacted dust accumulates at the opening of the blowing and blocking pipe and is difficult to clean, and at the same time improves the blowing and blocking efficiency of the conduction pipe, ensuring the normal soot blowing operation of the sonic soot blower. At the same time, the opening and closing setting of the closing parts can make the blowing and blocking pipe closed before blowing and blocking, thereby avoiding the situation that the dust accumulates and blocks the blowing and blocking pipe and affects the normal blowing and blocking. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0034] Figure 1 A schematic diagram of the overall structure of a sonic soot blower with a plugging blowing mechanism according to an embodiment of the present invention;

[0035] Figure 2 A schematic cross-sectional structure diagram of an anti-blocking mechanism in a sonic soot blower with a blocking blowing mechanism according to an embodiment of the present invention;

[0036] Figure 3 A schematic diagram of a cross-sectional explosion structure of an anti-blocking mechanism in a sonic soot blower with a blocking blowing mechanism according to an embodiment of the present invention;

[0037] Figure 4 A schematic diagram of the coordinated explosion structure of a power part, a lifting part and a crushing part in a sonic soot blower with a blowing and plugging mechanism according to an embodiment of the present invention;

[0038] Figure 5 A schematic diagram of the explosion structure of a sealing member in a sonic soot blower with a blowing and blocking mechanism according to an embodiment of the present invention;

[0039] Figure 6 A schematic diagram of the matching structure of a crushing member and a sealing disk in a sonic soot blower with a blowing and blocking mechanism according to an embodiment of the present invention;

[0040] Figure 7 A schematic diagram of the connection structure between a torsion spring and a closure member in a sonic soot blower with a plugging mechanism according to an embodiment of the present invention.

[0041] In the figure: 100, soot blowing mechanism; 101, sonic soot blowing assembly; 102, conduction pipe; 200, anti-blocking mechanism; 201, blowing and blocking pipe; 202, power member; 202a, fixed frame; 202b, rotating rod; 202c, guide groove; 202d, rotating paddle; 203, lifting member; 203a, collar; 203b, guide column; 203c, lifting frame; 203d, top rod; 203e, Guide block; 203f, spring; 204, crushing piece; 204a, rotating ring; 204b, crushing piece; 204c, push column; 205, closing piece; 205a, fixed disk; 205b, baffle; 205c, lever; 205d, rotating disk; 205d-1, connecting ring; 205e, pull groove; 205f, folding plate; 205g, torsion spring leaf; 205h, push block; 206, closing disk. DETAILED DESCRIPTION

[0042] In order to make the above-mentioned objects, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are described in detail below in conjunction with the accompanying drawings.

[0043] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein, and those skilled in the art may make similar generalizations without violating the connotation of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0044] Secondly, the present invention is described in detail with reference to schematic diagrams. When describing the embodiments of the present invention in detail, for the sake of convenience, the cross-sectional diagrams showing the device structure will not be partially enlarged according to the general scale, and the schematic diagrams are only examples, which should not limit the scope of protection of the present invention. In addition, in actual production, the three-dimensional dimensions of length, width and depth should be included.

[0045] Furthermore, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The term "in one embodiment" that appears in different places in this specification does not necessarily refer to the same embodiment, nor does it refer to a separate or selective embodiment that is mutually exclusive with other embodiments.

[0046] Example 1

[0047] Reference Figure 1 , Figure 2 and Figure 4 , this embodiment provides a sonic soot blower with a blowing and blocking mechanism.

[0048] The sonic soot blower with a blocking blowing mechanism comprises a soot blowing mechanism 100 and an anti-blocking mechanism 200 .

[0049] Specifically, the soot blowing mechanism 100 includes a sonic soot blowing component 101 and a conductive pipe 102 located outside the sonic soot blowing component 101;

[0050] The anti-blocking mechanism 200 includes a blow-blocking tube 201 connected to the end of the conducting tube 102 , a power member 202 is arranged inside the blow-blocking tube 201 , a lifting member 203 is arranged outside the power member 202 , and a crushing member 204 is arranged outside the lifting member 203 .

[0051] Furthermore, the power member 202 includes a fixed frame 202a fixed to the inner wall of the blow-blocking pipe 201, and a vertically arranged rotating rod 202b is rotatably installed in the central ring of the fixed frame 202a, a guide groove 202c is left on the surface of the rotating rod 202b, and a rotating paddle 202d is integrally installed at the bottom of the rotating rod 202b;

[0052] The lifting member 203 includes a collar 203a movably sleeved on the outside of the rotating rod 202b, a guide column 203b matched with the guide groove 202c is arranged on the inner wall of the collar 203a, and a lifting frame 203c is connected to the outside of the collar 203a, a top rod 203d is arranged on the surface of the lifting frame 203c, and a guide block 203e for limiting guidance is symmetrically arranged on the outer wall of the lifting frame 203c, and a spring 203f for elastically supporting the lifting member 203 as a whole is also arranged on the upper part of the lifting frame 203c, so that the lifting member 203 as a whole can be reset in time under the elastic force of the spring 203f;

[0053] The crushing element 204 includes a rotating ring 204a installed on the outer ring of the lifting frame 203c, and the surface of the rotating ring 204a is fixedly provided with crushing pieces 204b in a circular array. At the same time, the crushing pieces 204b extend to the pipe mouth of the blowing and plugging pipe 201. When the crushing element 204 rises, the crushing pieces can vibrate the dust accumulated on the pipe mouth of the conductive pipe 102 to disperse the dust and facilitate the subsequent blowing and plugging of the dust.

[0054] Guide grooves 201a are symmetrically provided on both sides of the inner wall of the blowing and plugging pipe 201, and the guide block 203e is slidably matched with the guide groove 201a, that is, the guide block 203e is movably embedded in the guide groove 201a. Through the vertical setting of the guide groove 201a, the overall position limitation of the lifting member 203 can be achieved, avoiding the lifting member 203 from axial rotation, and only allowing lifting and lowering movements.

[0055] Furthermore, the outer annular array of the rotating paddle 202d is distributed with a plurality of paddles, and the paddles are arranged in a clockwise tilted manner. Therefore, when the plugging blow pipe 201 is connected to the compressed air system, the rotating paddle 202d can rotate clockwise under the impetus of the airflow, thereby driving the rotating rod 202b to rotate synchronously. At the same time, a guide groove 202c arranged in a spiral groove extending upward in the clockwise direction is opened on the surface of the rotating rod 202b, and the guide column 203b is movably embedded in the guide groove 202c. Therefore, when the rotating rod 202b rotates, the inclined groove wall of the guide groove 202c will generate a driving force on the guide column 203b, so that the ring 203a can be linked with the rotation of the rotating rod 202b under the radial limitation of its external guide block 203e and the guide groove 201a, that is, when the rotating rod 202b rotates, the ring 203a can move axially under the traction of the guide column 203b pushed by the guide groove 202c, so as to control the use status of the crushing piece 204.

[0056] The lifting frame 203c is formed by connecting rods and an outer ring. The rods are distributed in an annular array outside the lifting frame 203c, and the surfaces of the rods are fixed with top rods 203d.

[0057] The top of the spring 203f is fixed to the inner wall of the pipe opening of the plugging and blowing tube 201, and the bottom of the spring 203f is fixed to the surface of the lifting frame 203c. When the lifting frame 203c moves upward with the ring 203a, the spring 203f is in a compressed state. When the air compression system is turned off, the upward force of the lifting frame 203c disappears, that is, the squeezing force on the spring 203f disappears. Therefore, the lifting frame 203c can be quickly reset under the push of the reset elastic force of the spring 203f. The lifting frame 203c can be elastically lifted and lowered inside the plugging and blowing tube 201 under the elastic force of the spring 203f to ensure the rapid and stable reset of the lifting frame 203c after rising.

[0058] When the end of the conducting pipe 102 is clogged with dust, the bottom of the blow-clogging pipe 201 is connected to the compressed air system. An electromagnetic pulse valve is installed on the outlet pipe of the compressed air system. When the electromagnetic pulse valve is opened, compressed air pulses into the blow-clogging pipe 201, so that the rotating paddle 202d can drive the rotating rod 202b to rotate clockwise under the impetus of the airflow, and then, through the cooperation between the guide groove 202c on the surface of the rotating rod 202b and the guide column 203b, the collar 203a and the lifting frame 203c can be lifted and lowered with the rotation of the rotating rod 202b under the limiting guidance of the guide block 203e and the guide groove 201a, and then the crushing piece 204 can be pushed to move up to the clogged section of the conducting pipe 102, and the crushing piece can be used to clean the dust. 204 crushes the compacted dust inside the conduction pipe 102, and blows away the dust blocking the pipe mouth of the conduction pipe 102 under the action of the compressed air flow, so as to achieve the blockage of the dust at the pipe mouth of the conduction pipe 102. When the airflow stops, the crushing piece 204 can be reset along with the lifting piece 203 under the elastic support of the spring 203f. This is a pulse process. The airflow enters the blow-off pipe 201 in a pulsed manner, so that the crushing piece 204 can reciprocate and extend under the cooperation of the spring 203f and the thrust of the airflow, so as to vibrate the dust compacted at the pipe mouth of the conduction pipe 102 for multiple times, so as to avoid the situation that the airflow is difficult to blow away the compacted dust and affect the normal blowing effect of the airflow, thereby ensuring the efficiency of the airflow in blowing off the dust.

[0059] Example 2

[0060] Reference Figure 1-Figure 4 , which is the second embodiment of the present invention, and this embodiment is based on the previous embodiment, and is different from the previous embodiment in that;

[0061] A push groove 201b is also provided on the back of the inner wall of the plugging blow pipe 201, and the rotating ring 204a and the lifting frame 203c are movably connected.

[0062] Furthermore, the push groove 201b is inclined, and the outer wall of the rotating ring 204a is also integrally provided with a push column 204c movably embedded in the push groove 201b. When the rotating ring 204a moves upward with the lifting member 203, the pushing force of the inclined groove wall of the push groove 201b on the push column 204c is applied to the rotating ring 204a so that the rotating ring 204a can rotate during the lifting process. At this time, the movement state of the crushing piece 204b is rotating and rising, so that the crushing piece 204b can achieve vibration and cutting of compacted dust, further improving the crushing effect of the crushing piece 204b on the dust, and facilitating the smooth and efficient subsequent airflow blocking.

[0063] Example 3

[0064] Reference Figure 1-Figure 7 , which is the third embodiment of the present invention, is based on the previous embodiment, and is different from the previous embodiment in that:

[0065] The anti-blocking mechanism 200 also includes a sealing member 205 disposed at the pipe opening of the blow-blocking pipe 201 , and a sealing disk 206 is movably mounted on the surface of the sealing member 205 .

[0066] Specifically, the closing member 205 includes a fixed disk 205a fixed at the port of the blow-blocking tube 201 and arranged in a circular ring shape. The bottom surface of the fixed disk 205a is hingedly connected with a plurality of fan-shaped baffles 205b near its inner ring. At the same time, a lever 205c is arranged at the bottom of the baffle 205b. The lower part of the baffle 205b is also connected to a rotating disk 205d. The rotating disk 205d is rotatably connected to the blow-blocking tube 201. At the same time, a lever groove 205e matching the lever 205c is also opened on the surface of the rotating disk 205d, and an L-shaped folding plate 205f is also integrally arranged on the bottom surface of the rotating disk 205d. The outer side of the vertical plate of the folding plate 205f is fixedly connected with a torsion spring sheet 205g, and a push block 205h is also arranged on the inner bottom surface of the rotating disk 205d.

[0067] A connecting ring 205d-1 with a T-shaped cross-section is also integrally provided on the periphery of the rotating disk 205d. At the same time, a connecting groove 201c that can cooperate with the connecting ring 205d-1 is also provided on the inner wall at the pipe mouth of the blowing and plugging tube 201, that is, the connecting ring 205d-1 is movably embedded in the connecting groove 201c, so that the rotating disk 205d can rotate relative to the blowing and plugging tube 201 inside its pipe mouth.

[0068] Furthermore, the fixed disk 205a and the rotating disk 205d are of the same shape and size, and the outer edges of the surfaces of the fixed disk 205a and the rotating disk 205d are provided with notches in a circular array for the crushing pieces 204b to rotate, and the crushing pieces 204b pass through the notches. The setting of the notches on the outer edges of the surfaces of the fixed disk 205a and the rotating disk 205d can meet the rotation needs of the crushing pieces 204b, avoid interference between the fixed disk 205a and the rotating disk 205d on the movement path of the crushing pieces 204b, and ensure the normal rotation and rise of the crushing pieces 204b to vibrate and cut the accumulated dust.

[0069] Preferably, the baffle 205b is fan-shaped and distributed in a circular array and hingedly arranged at the bottom of the fixed disk 205a. Multiple baffles 205b are placed circumferentially to form a complete closed circular surface, that is, multiple baffles 205b are spliced ​​to close the circular holes in the middle of the fixed disk 205a and the rotating disk 205d.

[0070] The push groove 205e is an arc setting along the clockwise direction of the rotating disk 204d, and is also arranged in a ring array on the rotating disk 205d. At the same time, the push rod 205c is movably embedded in the push groove 205e, and then when the rotating disk 205d rotates, the push rod 205c can slide inside it under the push of the push groove 205e, so that each baffle 205b can rotate around its respective hinge point under the traction of the push rod 205c, that is, the baffle 205b can be linked with the rotation of the rotating disk 205d, and the baffle 205b can achieve the purpose of controlling the opening and closing of the circular hole at the center of the fixed disk 205a and the rotating disk 205d through its own internal and external rotation. It is convenient for compressed air to enter the conduction tube 102 through the blowing and blocking tube 201 for blowing and blocking, and it can prevent dust from entering the blowing and blocking tube 201 and affecting the normal operation of the blowing and blocking tube 201.

[0071] Furthermore, a fixing block 201d is also provided on the inner wall of the blowing and blocking tube 201, and at the same time, one end of the torsion spring sheet 205g is fixed to the folding plate 205f, and the other end is fixed to the fixing block 201d. The torsion spring sheet 205g is arranged outward in the clockwise direction, and the elastic force of the torsion spring sheet 205g on the rotating disk 205d is pulled, so that the rotating disk 205d can be elastically rotated relative to the blowing and blocking tube 201, thereby limiting the clockwise rotation of the rotating disk 205d, that is, there is always a counterclockwise driving force on the rotating disk 205d, so that the blocking piece 205b can always be in an inwardly retracted and spliced ​​state when not affected by external forces, so as to ensure the overall stable closure of the blowing and blocking tube 201.

[0072] The push block 205h and the push rod 203d on the lifting frame 203c are arranged in a corresponding manner. The push blocks 205h are distributed in a circular array on the inner edge of the bottom surface of the rotating disk 205d to correspond to the multiple push rods 203d. At the same time, the push block 205h is arranged in a wedge shape, and its bottom surface is an inclined arc surface arranged from low to high in a clockwise direction. Then, through the matching arrangement of the push rod 203d and the inclined bottom surface of the push block 205h, after the push rod 203d moves up and contacts the push block 205h, the bottom inclined surface of the push block 205h can push the rotating disk 205d to rotate clockwise, thereby achieving the purpose of controlling the opening and closing of the closing member 205 by the lifting and lowering of the lifting member 203.

[0073] At the same time, the sealing plate 206 is movably mounted on the surface of the fixed plate 205a, and can cover the outer edge opening of the fixed plate 205a to prevent dust from entering the blowing and blocking tube 201 through the opening, and the outer edge of the sealing plate 206 is also provided with an opening with the same cross-sectional size as the crushing piece 204b, and the crushing piece 204b can pass through the opening to the pipe mouth of the blowing and blocking tube 201. Through the movable setting of the sealing plate 206, it can cover the fixed plate 205a while it can rotate with the rotation of the crushing piece 204b to ensure the normal use of the crushing piece 204b.

[0074] When in use, after the crushing element 204 has completed the vibration and crushing of the compacted ash, the compressed air system is changed to the normally open state, and the compressed air enters the plugging pipe 201, so that the lifting element 203 can move to its highest path under the action of the power element 202. At this time, the top rod 203d on the surface of the lifting frame 203c contacts the push block 205h, and then pushes the push block 205h to drive the rotating disk 205d to rotate clockwise, and the blocking piece 205b can move between the lever 205c and the push groove 205e. The fixed disk 205a and the rotating disk 205d are rotated outwardly with the cooperation of the fixed disk 205a and the rotating disk 205d, that is, the central circular holes of the fixed disk 205a and the rotating disk 205d are opened. At this time, the airflow can enter the conducting tube 102 through the sealing member 205 to blow and block the accumulated dust after vibration and crushing again. At the same time, a pressure relief valve is also provided on the outer side of the pipe body of the blowing and blocking pipe 201. In the vibrating state, the compressed air pulses and intermittently pass into the blowing and blocking pipe 201. At this time, the driving force on the power member 202 is limited, so the lifting member 203 can only be partially lifted and moved, that is, the top rod 203d 201, and the closure member 205 is in a closed state, and the plugging pipe 201 has not been opened, so that the accumulated dust can be prevented from falling into the plugging pipe 201. At the same time, the compressed air acting on the power member 202 can be discharged from the plugging pipe 201 by the pressure relief valve to ensure the continuous entry of compressed air. After the initial vibration and crushing is completed, the compressed air system is changed to a normally open setting. A large amount of compressed air continuously enters the plugging pipe 201, so that the lifting member 203 can be moved to the highest point, and the closure member 205 can be rotated and opened through the cooperation of the top rod 203d and the push block 205h, so as to realize the plugging of the blocked section of the conducting pipe 102. At the same time, the lifting member 203 is always in the highest position under the continuous thrust of the compressed air, so as to limit the resetting movement of the closure member 205. Through the setting of the closure member 205, the accumulated dust can be blown and blocked in sections, which improves the blowing and cleaning effect, and can prevent the accumulated dust from falling into the inside of the plugging pipe 201 and affecting the smooth progress of the blowing and blocking work.

[0075] Importantly, it should be noted that the construction and arrangement of the present application shown in a plurality of different exemplary embodiments are only exemplary. Although only a few embodiments are described in detail in this disclosure, it should be readily understood by those who refer to this disclosure that many modifications are possible (e.g., the size, scale, structure, shape and proportion of various elements, and parameter values ​​(e.g., temperature, pressure, etc.), installation arrangement, use of materials, color, directional changes, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in the application. For example, the element shown as integrally formed can be composed of multiple parts or elements, the position of the element can be inverted or otherwise changed, and the nature or number or position of the discrete element can be changed or changed. Therefore, all such modifications are intended to be included in the scope of the present invention. The order or sequence of any process or method steps can be changed or reordered according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure of performing the function described herein, and is not only structurally equivalent but also equivalent structure. Without departing from the scope of the present invention, other replacements, modifications, changes and omissions can be made in the design, operating conditions and arrangement of the exemplary embodiments. Therefore, the invention is not limited to a specific embodiment, but extends to several modifications still falling within the scope of the appended claims.

[0076] Additionally, in order to provide a concise description of exemplary embodiments, all features of an actual embodiment (ie, those features that are not relevant to the best mode presently contemplated for carrying out the invention or those that are not relevant to implementing the invention) may not be described.

[0077] It will be appreciated that in the development of any actual implementation, as in any engineering or design project, numerous implementation-specific decisions may be made. Such a development effort may be complex and time-consuming, but will be a routine task of design, fabrication, and production for those of ordinary skill having the benefit of this disclosure without undue experimentation.

[0078] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that the technical solutions of the present invention may be modified or replaced by equivalents without departing from the spirit and scope of the technical solutions of the present invention, which should all be included in the scope of the claims of the present invention.

Claims

1. A sonic soot blower with a plugging blowing mechanism, characterized in that: include, A sootblowing mechanism (100) comprises a sonic sootblowing assembly (101) and a conductive pipe (102) located on the outer wall of the sonic sootblowing assembly (101); and, The anti-blocking mechanism (200) comprises a blow-blocking pipe (201) installed at a port on one side of the conducting pipe (102), the inner wall of the blow-blocking pipe (201) is provided with a power member (202), the outside of the power member (202) is provided with a lifting member (203), the outer edge of the surface of the lifting member (203) is provided with a crushing member (204), the pipe opening of the blow-blocking pipe (201) is provided with a sealing member (205), and the surface of the sealing member (205) is provided with a sealing disk (206); The power member (202) comprises a fixing frame (202a) fixed to the inner wall of the plugging blow pipe (201), a rotating rod (202b) passing through the center of the fixing frame (202a), a guide groove (202c) being provided on the surface of the rotating rod (202b), and a rotating paddle (202d) being coaxially arranged at the bottom of the rotating rod (202b); The lifting member (203) comprises a collar (203a) arranged outside the rotating rod (202b), the inner wall of the collar (203a) is provided with a guide column (203b) matched with the guide groove (202c), a lifting frame (203c) is arranged on the periphery of the collar (203a), a top rod (203d) is arranged on the surface of the lifting frame (203c), a guide block (203e) is arranged on the outer wall of the lifting frame (203c), and a spring (203f) is arranged on the outside of the top rod (203d); The crushing member (204) comprises a rotating ring (204a) arranged on the outer ring of the lifting frame (203c), a crushing sheet (204b) is arranged on the surface of the rotating ring (204a), and a push column (204c) is arranged on the outer wall of the rotating ring (204a); The sealing member (205) comprises a fixed disk (205a) arranged on the inner wall of the port of the blow-blocking tube (201); a baffle (205b) is arranged on the inner edge of the bottom of the fixed disk (205a); a lever (205c) is arranged on the outer edge of the bottom of the baffle (205b); a rotating disk (205d) is arranged at the lower part of the baffle (205b); a lever groove (205e) matching with the lever (205c) is arranged on the surface of the rotating disk (205d); a folding plate (205f) is arranged on the outer edge of the bottom surface of the rotating disk (205d); a torsion spring sheet (205g) is arranged on the outer wall of the folding plate (205f); and a push block (205h) is arranged on the inner edge of the bottom surface of the rotating disk (205d).

2. The sonic soot blower with a plugging blowing mechanism according to claim 1, characterized in that: Guide grooves (201a) are provided on both sides of the inner wall of the blowing and plugging pipe (201), and a push groove (201b) is provided on the inner wall of the blowing and plugging pipe (201) located between the two guide grooves (201a).

3. The sonic soot blower with a plugging blowing mechanism according to claim 2, characterized in that: The rotating rod (202b) is rotationally matched with the fixing frame (202a).

4. The sonic soot blower with a plugging blowing mechanism according to claim 3, characterized in that: The guide groove (202c) is arranged in a spiral groove shape, and the guide column (203b) is movably embedded in the guide groove (202c); The outer annular array of the rotating paddle (202d) is distributed with a plurality of paddle blades.

5. The sonic soot blower with a plugging blowing mechanism according to claim 2 or 3, characterized in that: The rotating rod (202b) and the collar (203a) form a linkage mechanism via a guide column (203b); The guide block (203e) and the guide groove (201a) are in sliding fit; The lifting frame (203c) is formed by connecting rods and an outer ring, the rods are distributed in an annular array outside the lifting frame (203c), and top rods (203d) are fixed on the surfaces of the rods; The lifting frame (203c) and the plugging blow pipe (201) form an elastic lifting structure via a spring (203f).

6. The sonic soot blower with a plugging blowing mechanism according to claim 5, characterized in that: The rotating ring (204a) and the lifting frame (203c) are movably connected; The crushing pieces (204b) are arranged in an annular array on the surface of the rotating ring (204a), and the crushing pieces (204b) extend to the pipe opening of the blow-off pipe (201); The crushing sheet (204b) penetrates the sealing disk (206), and the sealing disk (206) and the fixed disk (205a) are movably connected; The push column (204c) is movably embedded in the push groove (201b), and the push groove (201b) is inclined.

7. The sonic soot blower with a plugging blowing mechanism according to claim 1, characterized in that: The outer edges of the surfaces of the fixed disk (205a) and the rotating disk (205d) are provided with notches in an annular array for the crushing pieces (204b) to rotate; The baffles (205b) are hinged to the bottom surface of the fixed disk (205a), and the baffles (205b) are distributed in a circular array at the bottom of the fixed disk (205a); A lever (205c) is integrally provided at the bottom of each baffle (205b), and the baffle (205b) and the rotating disk (205d) form a linkage structure via the lever (205c); The pulling groove (205e) is an arc-shaped groove; The rotating disk (205d) and the plugging blow pipe (201) form an elastic rotating structure through a torsion spring sheet (205g).

8. The sonic soot blower with a plugging blowing mechanism according to claim 1 or 7, characterized in that: A connecting ring (205d-1) is also provided on the periphery of the rotating disk (205d), a connecting groove (201c) that can cooperate with the connecting ring (205d-1) is provided at the pipe mouth of the blowing and plugging pipe (201), and the connecting ring (205d-1) is movably embedded in the connecting groove (201c).

9. The sonic soot blower with a plugging blowing mechanism according to claim 8, characterized in that: The inner wall of the blow-blocking pipe (201) is also provided with a fixing block (201d); One end of the torsion spring sheet (205g) is fixed to the folding plate (205f), and the other end is fixed to the fixing block (201d).

10. The sonic soot blower with a plugging blowing mechanism according to claim 9, characterized in that: The push block (205h) is arranged in a wedge shape, and the bottom surface of the push block (205h) is an inclined surface.

Images