Ash suction device for accumulated ash of boiler

Abstract

The utility model relates to the technical field of boiler dust deposition cleaning, the middle end of the top of a pulse dust removal tank is connected with a cowhells hose, one end part of the cowhells hose far away from the pulse dust removal tank is connected with a movable air compressor, and the bottom of the movable air compressor is stably supported by a supporting seat; a double-pneumatic-valve gravity unloader is connected to the discharging end of the bottom of the pulse dust removal tank, a dust collection structure is composed of the pulse dust removal tank, the cowhells hose, the movable air compressor and the double-pneumatic-valve gravity unloader, and negative pressure and pulse dust removal are provided through the pulse dust removal tank and the movable air compressor. The double-pneumatic-valve gravity unloader is matched, so that the accumulated dust can fall into the slag bin to be stored under the action of gravity, dust on the ground can be effectively sucked away, the cleaning efficiency can be improved, and the situation that a support and hanger system and a steel structure are damaged due to excessive accumulated dust is avoided; safe and stable operation of the unit is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of boiler dust accumulation cleaning, in particular to an ash suction device for boiler dust accumulation. Background Art

[0002] At present, dust accumulates inside the boilers of energy plants. The weight of the accumulated dust inside the boiler balers exceeds 100 tons. The accumulated dust will reduce production efficiency and bring safety hazards. Therefore, the staff needs to clean the inside of the boiler to remove the accumulated dust inside the boiler. In addition, during the emergency repair of the special-shaped pipe burst in the outlet section of the internal area of ​​the boiler superheater baler, due to the serious accumulation of dust at the position of the final superheater tube panel inside the baler, when the final superheater tube bursts, the leaked steam carries the accumulated dust inside and blows the tube panel near the burst hole, which is easy to damage the final superheater pipeline, further expanding the loss. The existing pneumatic conveyor uses airflow to transport materials. The main working principle is to suck the material into the air flow in the pneumatic conveying pipe to form a suspended gas-material mixture, transport the material to the destination through the pipeline, and then separate the material from the airflow.

[0003] However, in the current processing process, in order to prevent a large amount of ash accumulation inside the big bag, the ash inside the big bag needs to be cleaned every time the machine is shut down for maintenance. However, the ash weighs more than 100 tons, and manual cleaning alone is time-consuming and labor-intensive, and cannot reduce the risks brought by the ash accumulation in the big bag. The ash cleaning efficiency is low, and the load-bearing part at the bottom of the boiler big bag is only a layer of tree-shaped sealing plate, which is only used for sealing and cannot withstand excessive ash accumulation. In addition, the overweight ash accumulation damages the support and suspension system and steel structure of the boiler big bag, affecting the safe and stable operation of the boiler equipment and steel structure. Summary of the Invention

[0004] (1) Technical problems solved

[0005] In view of the deficiencies in the prior art, the utility model provides an ash suction device for boiler ash accumulation, which solves the problem that in order to prevent a large amount of ash accumulation inside the large bag during the current processing, the ash accumulation inside the large bag needs to be cleaned every time the machine is shut down for maintenance. However, the accumulated ash weighs more than 100 tons, and manual cleaning alone is time-consuming and labor-intensive, and cannot reduce the risks brought by the accumulation of ash in the large bag. The ash cleaning efficiency is low, and the load-bearing part at the bottom of the boiler large bag is only a layer of tree-shaped sealing plate, which is only used for sealing and cannot withstand excessive ash accumulation. Moreover, the overweight accumulated ash damages the support and suspension system and steel structure of the boiler large bag, affecting the safe and stable operation of the boiler equipment and steel structure.

[0006] (2) Technical solution

[0007] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an ash suction device for boiler ash accumulation, comprising a pulse dust removal tank, a tendon hose connected to the top middle end of the pulse dust removal tank, a mobile air compressor connected to one end of the tendon hose away from the pulse dust removal tank, the bottom of the mobile air compressor is stably supported by a support seat, a double pneumatic valve gravity discharger is connected to the bottom discharge end of the pulse dust removal tank, and a suction pipe is connected to the air inlet end in the middle of one side of the pulse dust removal tank, and a dust collecting hood is provided at the end of the suction pipe;

[0008] Three sets of mounting brackets are provided on the outer edge of the pulse dust removal tank, and the bottom ends of the three sets of mounting brackets are fixedly connected to a support platform, a through slot is provided inside the support platform, and the bottom of the double pneumatic valve gravity discharger is detachably connected to a connecting bag, and the support platform is stably supported by the support gantry at the four corners of its bottom;

[0009] Four connecting seats are connected to the side ends of the pulse dust removal tank at equal angles, three of which are provided with guide holes on the inner sides, and a nut seat is embedded on the inner side of another connecting seat. The inner side of the nut seat is connected with an adjusting screw through a thread, and a driving motor is fixedly installed at the bottom of the support platform corresponding to the adjusting screw.

[0010] As an optimal technical solution for the ash suction device for boiler ash accumulation in the utility model, the pulse dust removal tank, tendon hose, mobile air compressor and double pneumatic valve gravity discharger together constitute a dust suction structure, and the dust suction structure is installed in the top area of ​​the slag bin, and the pulse dust removal tank, tendon hose, mobile air compressor and double pneumatic valve gravity discharger are all connected to the power control cabinet.

[0011] As an optimal technical solution for the ash suction device for boiler ash accumulation of the utility model, the inner diameter of the guide hole is equal to the outer diameter of the mounting frame, and the mounting frame is located in the guide hole and is slidably connected thereto, and a limited seat is provided on the top of the mounting frame.

[0012] As a preferred technical solution of the ash suction device for boiler ash accumulation of the utility model, the driving motor is fixedly installed on the bottom of the supporting platform through a fixing seat, and the adjusting screw is fixedly connected to the output shaft of the driving motor.

[0013] As an optimal technical solution for the ash suction device for boiler ash accumulation in the utility model, the connecting cloth bag is connected to the discharge pipe at the bottom end of the double pneumatic valve gravity discharger through a threaded sleeve, and a drop opening with a diameter of 0.3 meters is opened at a position 2 meters high on the top of the slag bin, and the connecting cloth bag extends into the drop opening.

[0014] As a preferred technical solution of the ash suction device for boiler ash accumulation of the utility model, a counterweight block is installed on the outer side of the suction pipe close to the dust collecting cover, and the front and rear side ends of the counterweight block are provided with an engaging groove, and the inner side of the engaging groove is slidably connected to a telescopic support rod, and the end of the telescopic support rod is fixedly connected to a stabilizing suction cup;

[0015] The left and right bottom edges of the counterweight block are fixedly connected with adsorption magnetic blocks, and the four corners of the bottom of the counterweight block are embedded with movable rollers that are rotatably connected, and a handle is provided at the top middle end of the counterweight block.

[0016] As an optimal technical solution for the ash suction device for boiler ash accumulation of the utility model, the telescopic support rod is fitted into the embedded card slot, the adsorption magnetic block and the bottom surface of the movable roller are on the same plane, and the bottom adsorption surface of the stable suction cup is higher than the bottom surface of the movable roller.

[0017] (3) Beneficial effects

[0018] Compared with the prior art, the present invention provides an ash suction device for boiler ash accumulation, which has the following beneficial effects:

[0019] 1. The dust collection structure is composed of a pulse dust collection tank, a tendon hose, a mobile air compressor and a double pneumatic valve gravity discharger. The pulse dust collection tank and the mobile air compressor provide negative pressure and pulse dust collection, so that the tendon hose can transport the accumulated dust to the pulse dust collection tank. Cooperating with the double pneumatic valve gravity discharger, the accumulated dust can fall into the slag bin for storage under the action of gravity, so as to effectively absorb the dust on the ground, improve the cleaning efficiency, avoid damage to the support and hanger system and steel structure caused by excessive dust accumulation, ensure the safe and stable operation of the unit, and the ash collection method is also convenient for the subsequent centralized collection and transportation of accumulated dust, which can greatly improve the transportation efficiency. The suction pipe is a hose, so by changing the position of the dust collection hood at its end, it is convenient to flexibly adjust the dust collection position and increase the range of dust collection. The tendon hose is not easy to wear, and the difficulty of repairing and replacing is low, which is convenient for later maintenance.

[0020] By detachably connecting the cloth bag at the bottom of the double pneumatic valve gravity unloader and cooperating with the through groove inside the supporting platform, the cloth bag can be easily inserted into the discharge port of the slag bin, thereby facilitating the collection of dust. This method also prevents dust from overflowing during transportation.

[0021] 2. By arranging four sets of connecting seats at the side ends of the pulse dust collector tank, and arranging mounting brackets, guide holes, nut seats and adjusting screws on the inner sides of the connecting seats, it is convenient to drive the adjusting screw on the inner side of one of the connecting seats to rotate by a driving motor, so as to drive the connecting seat to perform lifting activities, and further synchronously drive multiple connecting seats and pulse dust collector tanks to perform lifting activities, so that the double pneumatic valve gravity discharger at the bottom of the pulse dust collector tank can adjust its actual application height according to actual unloading needs, which is convenient for better dust collection and unloading. The adjustment process is convenient to operate, and the limit guide connection between the mounting bracket and the guide hole makes the pulse dust collector tank more stable during lifting activities.

[0022] 3. By arranging a counterweight block at the end of the suction tube, and cooperating with the movable roller and the handle to conveniently move the counterweight block, it is convenient to adjust its position. The stable suction cup at the end of the telescopic support rod is convenient for limiting the position of the counterweight block by suction after the counterweight block moves to the designated area. At the same time, on the basis of the stable suction cup, the adsorption magnetic block at the edge of the counterweight block can further limit the position of the counterweight block by magnetic limitation, ensuring the stability of the suction tube and the dust collecting hood during dust collection, so that the dust collecting hood can stably perform dust collection after moving to the designated dust collection position, and utilizing the interlocking slot inside the counterweight block to facilitate the fitting and connection of the telescopic support rod, thereby facilitating the adjustment of the position of the telescopic support rod, and then facilitating the adjustment of the adsorption position of the stable suction cup, so as to facilitate flexible adjustment according to needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a structural diagram of the present utility model.

[0024] Figure 2 It is a structural diagram of the support platform of the utility model.

[0025] Figure 3 It is a structural schematic diagram of the double pneumatic valve gravity unloader of the utility model.

[0026] Figure 4 It is a structural schematic diagram of the adjusting screw of the utility model.

[0027] Figure 5 It is a structural diagram of the counterweight block of the utility model.

[0028] In the figure: 1. Pulse dust removal tank; 2. Cowhide hose; 3. Mobile air compressor; 4. Support base; 5. Double pneumatic valve gravity discharger; 6. Suction pipe; 7. Mounting frame; 8. Support platform; 9. Support gantry; 10. Connecting base; 11. Guide hole; 12. Nut seat; 13. Adjusting screw; 14. Driving motor; 15. Through slot; 16. Connecting bag; 17. Dust hood; 18. Counterweight; 19. Engaging slot; 20. Telescopic support rod; 21. Stabilizing suction cup; 22. Adsorption magnetic block; 23. Moving roller; 24. Handle. DETAILED DESCRIPTION

[0029] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention. Example

[0030] See also Figure 1-5 The utility model provides the following technical solutions: an ash suction device for boiler ash accumulation, comprising a pulse dust removal tank 1, a tendon hose 2 connected to the top middle end of the pulse dust removal tank 1, a mobile air compressor 3 connected to the end of the tendon hose 2 away from the pulse dust removal tank 1, the bottom of the mobile air compressor 3 is stably supported by a support seat 4, and a double pneumatic valve gravity discharger 5 is connected to the bottom discharge end of the pulse dust removal tank 1. The pulse dust removal tank 1, the tendon hose 2, the mobile air compressor 3 and the double pneumatic valve gravity discharger 5 together constitute a dust suction structure. , and the dust collection structure is installed in the top area of ​​the slag bin, the pulse dust removal tank 1, the tendon hose 2, the mobile air compressor 3 and the double pneumatic valve gravity discharger 5 are all connected to the power control cabinet, which is convenient for transporting the accumulated dust to the pulse dust removal tank 1, and cooperates with the double pneumatic valve gravity discharger 5, so that the accumulated dust can fall into the slag bin for storage under the action of gravity, so as to effectively absorb the dust on the ground and improve the cleaning efficiency. A suction pipe 6 is connected to the middle air inlet end on one side of the pulse dust removal tank 1, and a dust collecting hood 17 is provided at the end of the suction pipe 6;

[0031] Three groups of mounting brackets 7 are provided on the outer edge of the pulse dust collector tank 1, and the bottom ends of the three groups of mounting brackets 7 are fixedly connected to a supporting platform 8. A through slot 15 is provided inside the supporting platform 8. The bottom of the double pneumatic valve gravity discharger 5 is detachably connected to a connecting bag 16, and the connecting bag 16 is connected to the discharge pipe at the bottom end of the double pneumatic valve gravity discharger 5 through a threaded sleeve. A drop hole with a diameter of 0.3 meters is provided at a position 2 meters high on the top of the slag bin. The connecting bag 16 extends into the drop hole, which is convenient for connecting and disassembling the connecting bag 16 and the double pneumatic valve gravity discharger 5, and at the same time facilitates the communication between the bottom discharge end of the double pneumatic valve gravity discharger 5 and the drop hole on the top of the slag bin. The supporting platform 8 is stably supported by the supporting gantry 9 at the four corners of its bottom;

[0032] Four connecting seats 10 are connected at equal angles to the side ends of the pulse dust collector tank 1, of which guide holes 11 are opened on the inner sides of three connecting seats 10. The inner diameter of the guide hole 11 is equal to the outer diameter of the mounting bracket 7, and the mounting bracket 7 is located in the guide hole 11 and is slidably connected. A limited seat is provided on the top of the mounting bracket 7. The limited guide connection between the mounting bracket 7 and the guide hole 11 makes the pulse dust collector tank 1 more stable during lifting activities. A nut seat 12 is embedded in the inner side of another connecting seat 10, and an adjusting screw 13 is threadedly connected to the inner side of the nut seat 12. A driving motor 14 is fixedly installed at the bottom of the support platform 8 corresponding to the adjusting screw 13. The driving motor 14 is fixedly installed on the bottom of the support platform 8 through a fixing seat. The adjusting screw 13 is fixedly connected to the output shaft of the driving motor 14, which is convenient for the driving motor 14 to drive the adjusting screw 13 to rotate, and convenient for the adjusting screw 13 to drive the connecting seat 10 to move.

[0033] A counterweight 18 is installed on the outer side of the suction pipe 6 near the dust collecting cover 17. The front and rear ends of the counterweight 18 are provided with engaging slots 19. The inner side of the engaging slot 19 is slidably connected to a telescopic support rod 20. The end of the telescopic support rod 20 is fixedly connected to a stabilizing suction cup 21.

[0034] The left and right bottom edges of the counterweight 18 are fixedly connected with adsorption magnetic blocks 22, and the four corners of the bottom of the counterweight 18 are embedded with movable rollers 23 for rotation. The telescopic support rod 20 is fitted and snapped into the engaging slot 19. The bottom surfaces of the adsorption magnetic blocks 22 and the movable roller 23 are on the same plane. The bottom adsorption surface of the stabilizing suction cup 21 is higher than the bottom surface of the movable roller 23. The engaging slot 19 inside the counterweight 18 is utilized to facilitate the fitting and snapping of the telescopic support rod 20, facilitate the adjustment of the position of the telescopic support rod 20, and thus facilitate the adjustment of the adsorption position of the stabilizing suction cup 21, and facilitate the adsorption of the stabilizing suction cup 21 and the adsorption magnetic blocks 22. A handle 24 is provided at the top middle end of the counterweight 18.

[0035] The working principle and use process of the utility model are as follows: during the suction process, the suction pipe 6 and the dust collecting cover 17 at its end are first moved to the designated dust suction position. The suction pipe 6 is a hose, so by changing the position of the dust collecting cover 17 at its end, the dust suction position can be flexibly adjusted to increase the range of dust suction, and the tendon hose 2 is not easy to wear, and the difficulty of repairing and replacing is low, which is convenient for later maintenance. After the dust collecting cover 17 reaches the designated dust suction position, a counterweight 18 is provided at the end of the suction pipe 6, and the movable roller 23 and the handle 24 are used to conveniently drive the counterweight 18 to move, thereby facilitating adjustment of its position.

[0036] After the position of the counterweight 18 is adjusted, the stabilizing suction cup 21 at the end of the telescopic support rod 20 is used to facilitate the movement of the counterweight 18 to the designated area, and the position of the counterweight 18 is limited by the suction cup. At the same time, on the basis of the stabilizing suction cup 21, the adsorption magnetic block 22 at the edge of the counterweight 18 can further limit the position of the counterweight 18 by magnetic limitation, ensuring the stability of the suction pipe 6 and the dust collecting hood 17 during dust collection, so that the dust collecting hood 17 can stably collect dust after moving to the designated dust collection position, and the interlocking card slot 19 inside the counterweight 18 is used to facilitate the fitting of the telescopic support rod 20, so as to facilitate the adjustment of the position of the telescopic support rod 20, and then facilitate the adjustment of the adsorption position of the stabilizing suction cup 21, so as to facilitate flexible adjustment according to needs.

[0037] During the dust collection process, the dust collection structure is composed of a pulse dust collection tank 1, a tendon hose 2, a mobile air compressor 3 and a double pneumatic valve gravity discharger 5. The pulse dust collection tank 1 and the mobile air compressor 3 provide negative pressure and pulse dust collection, so that the tendon hose 2 can transport the accumulated dust to the pulse dust collection tank 1, thereby effectively sucking away the dust on the ground, which can improve the cleaning efficiency, avoid damage to the support and hanger system and steel structure caused by excessive dust accumulation, and ensure the safe and stable operation of the unit;

[0038] When the dust in the pulse dust removal tank 1 needs to be transported to the slag bin for storage, the driving motor 14 is started to drive the adjusting screw 13 inside one of the connecting seats 10 to rotate, so as to facilitate the connection seat 10 to be lifted and lowered, and further synchronously drive multiple connection seats 10 and the pulse dust removal tank 1 to be lifted and lowered, so that the double pneumatic valve gravity discharger 5 at the bottom of the pulse dust removal tank 1 can adjust its actual application height according to actual unloading needs, so as to better carry out dust collection and unloading, and the adjustment process is convenient to operate. The limit guide connection between the mounting bracket 7 and the guide hole 11 makes the pulse dust removal tank 1 more stable during the lifting activity;

[0039] After the position of the double pneumatic valve gravity discharger 5 at the bottom of the pulse dust removal tank 1 is adjusted, a discharge port with a diameter of 0.3 meters is opened at a height of 2 meters on the top of the slag bin, and the bottom of the double pneumatic valve gravity discharger 5 is connected with a connecting cloth bag 16 to cooperate with the through groove 15 inside the supporting platform 8, so that the connecting cloth bag 16 can be easily extended into the discharge port of the slag bin, so that the dust will not overflow during the transportation process. Then, the double pneumatic valve gravity discharger 5 is used to drop the accumulated dust inside the pulse dust removal tank 1 into the slag bin for storage under the action of gravity, and then transported to a professional transport vehicle through the slag discharge equipment at the bottom of the slag bin.

[0040] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. An ash collection device for boiler ash accumulation, comprising a pulse dust removal tank (1), characterized in that: The middle end of the top of the pulse dust removal tank (1) is connected to a tendon hose (2), one end of the tendon hose (2) away from the pulse dust removal tank (1) is connected to a mobile air compressor (3), the bottom of the mobile air compressor (3) is stably supported by a support base (4), the bottom discharge end of the pulse dust removal tank (1) is connected to a double pneumatic valve gravity discharger (5), and the middle air inlet end of one side of the pulse dust removal tank (1) is connected to a suction pipe (6), and the end of the suction pipe (6) is provided with a dust collecting hood (17); Three groups of mounting frames (7) are provided on the outer side of the pulse dust removal tank (1), and the bottom ends of the three groups of mounting frames (7) are fixedly connected to a support platform (8), a through slot (15) is provided inside the support platform (8), and a connecting bag (16) is detachably connected to the bottom of the double pneumatic valve gravity discharger (5), and the support platform (8) is stably supported by support gantry frames (9) at the four corners of the bottom thereof; Four connecting seats (10) are connected to the side ends of the pulse dust removal tank (1) at equal angles, wherein three of the connecting seats (10) have guide holes (11) formed on the inner sides thereof, and a nut seat (12) is embedded and installed on the inner side of another connecting seat (10), and an adjusting screw (13) is connected to the inner side of the nut seat (12) through a thread, and a driving motor (14) is fixedly installed at the bottom of the support platform (8) corresponding to the adjusting screw (13).

2. The ash suction device for boiler ash accumulation according to claim 1, characterized in that: The pulse dust removal tank (1), the tendon hose (2), the mobile air compressor (3) and the double pneumatic valve gravity discharger (5) together constitute a dust collection structure, and the dust collection structure is installed in the top area of ​​the slag bin, and the pulse dust removal tank (1), the tendon hose (2), the mobile air compressor (3) and the double pneumatic valve gravity discharger (5) are all connected to the power control cabinet.

3. The ash suction device for boiler ash accumulation according to claim 1, characterized in that: The inner diameter of the guide hole (11) is equal to the outer diameter of the mounting frame (7), and the mounting frame (7) is located in the guide hole (11) and is slidably connected thereto. A limit seat is provided on the top of the mounting frame (7).

4. The ash suction device for boiler ash accumulation according to claim 1, characterized in that: The driving motor (14) is fixedly mounted on the bottom of the supporting platform (8) via a fixing seat, and the adjusting screw (13) is fixedly connected to the output shaft of the driving motor (14).

5. The ash suction device for boiler ash accumulation according to claim 1, characterized in that: The connecting cloth bag (16) is connected to the discharge pipe at the bottom end of the double pneumatic valve gravity discharger (5) through a threaded sleeve, and a discharge opening with a diameter of 0.3 meters is opened at a height of 2 meters on the top of the slag bin, and the connecting cloth bag (16) extends into the discharge opening.

6. The ash suction device for boiler ash accumulation according to claim 1, characterized in that: A counterweight (18) is installed on the outer side of the suction pipe (6) near the dust collecting cover (17), and the front and rear side ends of the counterweight (18) are provided with an engaging groove (19), and the inner side of the engaging groove (19) is slidably connected to a telescopic support rod (20), and the end of the telescopic support rod (20) is fixedly connected to a stabilizing suction cup (21); The left and right bottom edges of the counterweight block (18) are fixedly connected to adsorption magnetic blocks (22), and the four corners of the bottom of the counterweight block (18) are embedded with movable rollers (23) that are rotatably connected, and a handle (24) is provided at the top middle end of the counterweight block (18).

7. The ash suction device for boiler ash accumulation according to claim 6, characterized in that: The telescopic support rod (20) is engaged and snapped into the engaging slot (19), the adsorption magnetic block (22) and the bottom surface of the movable roller (23) are on the same plane, and the bottom adsorption surface of the stabilizing suction cup (21) is higher than the bottom surface of the movable roller (23).

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