Energy-saving bag-type dust collector ash conveying pipeline for pulverized coal fired boiler

Abstract

The utility model discloses an energy-saving bag-type dust collector ash conveying pipeline for a pulverized coal fired boiler, which belongs to the technical field of bag-type dust collectors and is characterized in that an upper convex ring is arranged on the side surface of a first filter screen, a lower convex ring matched with the upper convex ring is arranged at the top of the ash conveying pipeline, and a plurality of groups of first locking grooves matched with locking fans are formed in the lower convex ring; the locking sash comprises a vertical plate and an arc plate, and a second locking groove matched with the arc plate is formed in the side face of the first locking groove. A sliding groove communicating with the first locking groove is formed in the outer side of the lower convex ring, and an insertion block is movably arranged in the sliding groove. Multiple groups of self-opening air outlet valves are arranged at the bottom of the ash conveying pipe, shielding rings are arranged at the tops of the air outlet valves, multiple groups of convex plates are arranged on the inner walls of the air outlet valves, and movable plugs are connected to the tops of reset springs; and a limiting convex ring matched with the shielding ring is arranged on the side face of the movable plug, multiple sets of air outlet holes are formed in the limiting convex ring, an air cylinder matched with the movable plug is installed in the middle of the supporting plate, and the practicability and stability of the ash conveying pipeline are improved through the structure.

Description

Technical Field

[0001] The utility model relates to the technical field of bag dust collectors, in particular to an energy-saving bag dust collector ash conveying pipeline for a pulverized coal boiler. Background Art

[0002] The bag filter is a dry dust filter. It is suitable for capturing fine, dry, non-fibrous dust. The filter bag is made of textile filter cloth or non-textile felt, and uses the filtering effect of fiber fabric to filter the dust-containing gas. When the dust-containing gas enters the bag filter, the large particles and heavy dust settle down due to gravity and fall into the ash hopper. When the gas containing finer dust passes through the filter material, the dust is retained, so that the gas is purified.

[0003] Publication number: CN212651498U discloses an energy-saving bag dust collector ash conveying pipeline, including a first through pipe, a first blade and a second blade, a limit plate is provided on the inner side of the right end of the first through pipe, and a filter screen is fixedly connected to the right side of the inner end of the limit plate, the right side of the first through pipe is fitted with the second through pipe, and the outer side of the right end of the first through pipe and the outer side of the left end of the second through pipe are fixedly connected with flanges, the inner side of the flange is fixedly connected with a sealing gasket, and bolts are installed inside the flange and the sealing gasket, the right side of the second through pipe is fixedly connected with a transfer tube, and the first blade and the second blade are respectively located on the outer side of the active rod and the driven rod. The energy-saving bag dust collector ash conveying pipeline is easy to assemble, easy to avoid the blockage of the conveyed dust at the elbow pipe, and easy to reduce the impact force caused by the conveyed dust on the elbow pipe, easy to convey the dust at a stable pressure, and avoid the bag from being damaged.

[0004] The ash conveying pipeline of the bag dust collector in the above-mentioned comparative documents has a general degree of freedom, the disassembly and assembly process is cumbersome, lacks a quick locking structure, and cannot automatically control the opening and closing of the pipeline through the flow of airflow. Therefore, an energy-saving bag dust collector ash conveying pipeline for pulverized coal boilers is designed here to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide an energy-saving ash conveying pipeline for a pulverized coal boiler for a bag-type dust collector in order to solve the problems that the ash conveying pipeline of a traditional bag-type dust collector has a general degree of freedom, a complicated disassembly and assembly process, lacks a quick locking structure, and cannot automatically control the opening and closing of the pipeline through the flow of air.

[0006] To achieve the above-mentioned purpose, the technical solution of the utility model is: an energy-saving bag dust collector ash conveying pipeline for a pulverized coal boiler, comprising an ash conveying pipe and a first filter screen, an upper convex ring is arranged on the side of the first filter screen, a lower convex ring matched with the ash conveying pipe is arranged on the top of the ash conveying pipe, a plurality of locking fans are arranged at the bottom of the upper convex ring, a plurality of first locking grooves matched with the locking fans are arranged on the lower convex ring, the locking fan comprises a vertical plate and an arc plate, a second locking groove matched with the arc plate is arranged on the side of the first locking groove; a second locking groove matched with the arc plate is arranged on the outer side of the lower convex ring A sliding groove connected to the first locking groove, wherein an insert block is movably arranged in the sliding groove; a plurality of groups of self-opening air outlet valves are arranged at the bottom of the ash conveying pipe, a shielding ring is arranged at the top of the air outlet valve, a plurality of groups of convex plates are arranged on the inner wall of the air outlet valve, a return spring is connected to the top of the convex plate, and a movable plug is connected to the top of the return spring; a limiting convex ring cooperating with the shielding ring is arranged on the side of the movable plug, and a plurality of groups of air outlet holes are formed on the limiting convex ring; a support plate is arranged between the convex plates, and a cylinder cooperating with the movable plug is installed in the middle of the support plate.

[0007] As a further solution of the utility model: limiting plates are arranged on both sides of the sliding groove, locking parts are arranged on both sides of the insert block, and the limiting plates are connected to the locking parts through locking springs.

[0008] As a further solution of the utility model: the locking portion locks the vertical plate and the inner wall of the first locking groove, and a handle is provided on the outer side of the insert block.

[0009] As a further solution of the utility model: a second filter screen is also installed at the bottom of the air outlet valve.

[0010] As a further solution of the utility model: a processor is arranged at the bottom of one group of the convex plates.

[0011] The utility model provides an energy-saving bag filter ash conveying pipeline for pulverized coal boilers through improvement. Compared with the prior art, it has the following improvements and advantages:

[0012] When the first filter needs to be disassembled and assembled, first insert the locking fan into the first lock slot, and the plug will retract into the sliding slot under extrusion. Then rotate the first filter clockwise, and when the arc plate is inserted into the second lock slot, the plug will pop out automatically, and the locking parts on both sides will lock the inner wall of the first lock slot and the vertical plate. When the equipment is working, the processor will drive the output end of the cylinder to retract, and the moving plug will move downward under the impact of wind, and the exhaust gas containing dust will be discharged into the bag filter through the air outlet. And when the equipment is turned off, the moving plug can be restored to its original position under the action of the reset spring, thereby automatically closing the ash conveying pipe. This structure greatly improves the practicality and stability of the ash conveying pipeline of the energy-saving bag filter for pulverized coal boilers. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The utility model is further explained below in conjunction with the accompanying drawings and embodiments:

[0014] Figure 1 It is a three-dimensional structural diagram of the utility model;

[0015] Figure 2 It is a three-dimensional structural diagram of the first filter screen in the utility model;

[0016] Figure 3 It is a local explosion of the utility model Figure 1 ;

[0017] Figure 4 The local explosion of the utility model Figure 2 ;

[0018] Figure 5 It is a cross-sectional view of the air outlet valve in the utility model.

[0019] Description of reference numerals:

[0020] 1. Ash conveying pipe; 2. First filter; 3. Upper convex ring; 4. Lower convex ring; 5. Locking fan; 6. Vertical plate; 7. Arc plate; 8. First locking groove; 9. Second locking groove; 10. Sliding groove; 11. Limiting plate; 12. Insert block; 13. Handle; 14. Locking part; 15. Locking spring; 16. Exhaust valve; 17. Shielding ring; 18. Conveyor plate; 19. Reset spring; 20. Moving plug; 21. Limiting convex ring; 22. Exhaust hole; 23. Support plate; 24. Cylinder; 25. Second filter; 26. Processor. DETAILED DESCRIPTION

[0021] The following will be combined with the attached Figures 1 to 5The utility model is described in detail, and the technical solutions in the embodiments of the utility model are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of them. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] The utility model provides an energy-saving bag filter ash conveying pipeline for a pulverized coal boiler through improvement. Figure 1-Figure 5 As shown, an energy-saving bag filter ash conveying pipeline for a pulverized coal boiler includes an ash conveying pipe 1 and a first filter screen 2. An upper convex ring 3 is arranged on the side of the first filter screen 2. A lower convex ring 4 cooperating with the ash conveying pipe 1 is arranged on the top of the ash conveying pipe 1. A plurality of locking fans 5 are arranged at the bottom of the upper convex ring 3. A plurality of first locking grooves 8 cooperating with the locking fans 5 are arranged on the lower convex ring 4. The locking fan 5 includes a vertical plate 6 and an arc plate 7. A second locking groove 9 cooperating with the arc plate 7 is arranged on the side of the first locking groove 8. A sliding groove 10 communicating with the first locking groove 8 is arranged on the outer side of the lower convex ring 4. A plug block 12 is movably provided; a plurality of groups of self-opening air outlet valves 16 are provided at the bottom of the ash conveying pipe 1, a shielding ring 17 is provided at the top of the air outlet valve 16, a plurality of groups of convex plates 18 are provided on the inner wall of the air outlet valve 16, a return spring 19 is connected to the top of the convex plate 18, and a movable plug 20 is connected to the top of the return spring 19; a limiting convex ring 21 cooperating with the shielding ring 17 is provided on the side of the movable plug 20, and a plurality of groups of air outlet holes 22 are provided on the limiting convex ring 21; a support plate 23 is provided between the convex plates 18, and a cylinder 24 cooperating with the movable plug 20 is installed in the middle of the support plate 23.

[0023] When the first filter screen 2 needs to be disassembled and assembled, the locking fan 5 is first inserted into the first locking groove 8, and the plug 12 will retract into the sliding groove 10 under the squeeze. Then the first filter screen 2 is rotated clockwise, and when the arc plate 7 is inserted into the second locking groove 9, the plug 12 will automatically pop out, and the locking parts 14 on both sides will lock the inner wall of the first locking groove 8 and the vertical plate 6. When the device is working, the processor 26 will drive the output end of the cylinder 24 to retract, and the moving plug 20 will move downward under the impact of the wind, and the exhaust gas containing dust will be discharged into the bag filter through the air outlet 22. And when the device is turned off, the moving plug 20 can be restored to its original position under the action of the reset spring 19, thereby automatically closing the ash conveying pipe 1. This structure greatly improves the practicality and stability of the ash conveying pipeline of the energy-saving bag filter for pulverized coal boilers.

[0024] See attached Figure 3 -Attached Figure 4Limiting plates 11 are arranged on both sides of the sliding groove 10 , locking parts 14 are arranged on both sides of the inserting block 12 , and the limiting plates 11 are connected to the locking parts 14 through locking springs 15 .

[0025] In this embodiment, in order to limit the insert block 12 to prevent it from being separated from the sliding slot 10 and to automatically pop out and double lock the device, the limiting plate 11 is connected to the locking portion 14 through the locking spring 15.

[0026] See attached Figure 3 -Attached Figure 4 The locking portion 14 locks the vertical plate 6 and the inner wall of the first locking groove 8 , and a handle 13 is provided on the outer side of the insert block 12 .

[0027] In this embodiment, when unlocking, in order to facilitate pulling the inserting block 12 outward from the sliding groove 10 , a handle 13 is provided on the outer side of the inserting block 12 .

[0028] See attached Figure 5 A second filter screen 25 is also installed at the bottom of the air outlet valve 16, and a processor 26 is provided at the bottom of one group of convex plates 18.

[0029] In this embodiment, in order to further control the state of the cylinder 24 according to the instruction of the external device, a processor 26 is designed. In order to filter and purify the larger particles in the exhaust gas, a second filter 25 is also installed at the bottom of the outlet valve 16.

[0030] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An energy-saving bag filter ash conveying pipeline for a pulverized coal boiler, characterized in that: The invention comprises an ash conveying pipe (1) and a first filter screen (2), wherein an upper convex ring (3) is arranged on the side of the first filter screen (2), a lower convex ring (4) cooperating with the upper convex ring (3) is arranged on the top of the ash conveying pipe (1), a plurality of locking fans (5) are arranged on the bottom of the upper convex ring (3), a plurality of first locking grooves (8) cooperating with the locking fans (5) are arranged on the lower convex ring (4), the locking fans (5) comprise a vertical plate (6) and an arc plate (7), a second locking groove (9) cooperating with the arc plate (7) is arranged on the side of the first locking groove (8); a sliding groove (10) communicating with the first locking groove (8) is arranged on the outer side of the lower convex ring (4), and an insert block (12) is movably arranged in the sliding groove (10); A plurality of self-opening air outlet valves (16) are arranged at the bottom of the ash conveying pipe (1), a shielding ring (17) is arranged at the top of the air outlet valve (16), a plurality of convex plates (18) are arranged on the inner wall of the air outlet valve (16), a return spring (19) is connected to the top of the convex plate (18), and a movable plug (20) is connected to the top of the return spring (19); a limiting convex ring (21) cooperating with the shielding ring (17) is arranged on the side of the movable plug (20), and a plurality of air outlet holes (22) are provided on the limiting convex ring (21); a support plate (23) is arranged between the convex plates (18), and a cylinder (24) cooperating with the movable plug (20) is installed in the middle of the support plate (23).

2. The energy-saving bag filter ash conveying pipeline for a pulverized coal boiler according to claim 1 is characterized in that: Limiting plates (11) are arranged on both sides of the sliding groove (10), locking parts (14) are arranged on both sides of the insert block (12), and the limiting plates (11) are connected to the locking parts (14) via locking springs (15).

3. The energy-saving bag filter ash conveying pipeline for a pulverized coal boiler according to claim 2 is characterized in that: The locking portion (14) locks the vertical plate (6) and the inner wall of the first locking groove (8), and a handle (13) is provided on the outer side of the insert block (12).

4. The energy-saving bag filter ash conveying pipeline for a pulverized coal boiler according to claim 1 is characterized in that: A second filter screen (25) is also installed at the bottom of the air outlet valve (16).

5. The energy-saving bag filter ash conveying pipeline for a pulverized coal boiler according to claim 1 is characterized in that: A processor (26) is disposed at the bottom of one group of the convex plates (18).

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