CN215951476U

CN215951476U - Power station boiler afterbody flue dust collector

Info

Publication number: CN215951476U
Application number: CN202122323652.7U
Authority: CN
Inventors: 陈浩; 刘士琦; 祝海鹏; 王亮亮
Original assignee: Hulunbuir Branch Of Inner Mongolia Special Equipment Inspection And Research Institute
Current assignee: Hulunbuir Branch Of Inner Mongolia Special Equipment Inspection And Research Institute
Priority date: 2021-09-24
Filing date: 2021-09-24
Publication date: 2022-03-04
Anticipated expiration: 2031-09-24

Abstract

The utility model discloses a dust removal device for a tail flue of a power station boiler, which relates to the technical field of boiler dust removal and comprises a smoke exhaust pipeline, wherein the left end of the smoke exhaust pipeline is provided with a smoke inlet, the right end of the smoke exhaust pipeline is provided with a smoke outlet, the upper part of the smoke exhaust pipeline protrudes upwards to form a first cavity, the lower end of the smoke exhaust pipeline protrudes downwards to form two second cavities, the top of the smoke exhaust pipeline is fixedly provided with a driving motor, the output shaft of the driving motor is fixedly connected with a driving belt wheel, and the driving belt wheel is connected with a driven belt wheel through a belt. According to the utility model, under the action of water pressure, water is sprayed out from the water spray holes to adsorb and remove dust and carbonized particles in tail gas passing through the smoke exhaust pipeline, so that the effect of pre-adsorbing and removing dust of dust and carbonized particles passing through the smoke exhaust pipeline is achieved, the gravity of large-particle dust and carbonized particles sprayed by water is increased and then the large-particle dust and carbonized particles fall into the second chamber, and the condition that excessive dust and carbonized particles are not attached to the inner wall of the smoke exhaust pipeline is ensured.

Description

Power station boiler afterbody flue dust collector

Technical Field

The utility model relates to the technical field of boiler dust removal, in particular to a dust removal device for a tail flue of a power station boiler.

Background

The emission index of the dust (including fly ash and carbon black) contained in the boiler flue gas can reach several times to tens of times of the environmental protection specified index without purification, so for the exhaust emission of the boiler, the exhaust emission can be discharged into the air after being purified

Contain a large amount of burning dust and granular carbide in the power plant boiler tail gas, present handle burning dust and granular carbide through using the pipeline to let in tail gas earlier to the water shower room, nevertheless easily adhere to the inner wall of pipeline when dust and granular carbide pass through exhaust duct on, it is very troublesome to clear up.

Therefore, it is necessary to provide a dust removing device for the tail flue of the utility boiler to solve the above problems.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

The utility model aims to: the utility model provides a dust removal device for a tail flue of a power station boiler, aiming at solving the problem that dust and granular carbide in tail gas of the power station boiler are easy to attach to the inner wall of an exhaust pipeline.

(II) technical scheme

The utility model specifically adopts the following technical scheme for realizing the purpose:

a dust removal device for a tail flue of a power station boiler comprises a smoke exhaust pipeline, wherein a smoke inlet is formed in the left end of the smoke exhaust pipeline, a smoke outlet is formed in the right end of the smoke exhaust pipeline, the upper portion of the smoke exhaust pipeline protrudes upwards to form a first cavity, the lower end of the smoke exhaust pipeline protrudes downwards to form two second cavities, a driving motor is fixedly mounted at the top of the smoke exhaust pipeline, an output shaft of the driving motor is fixedly connected with a driving belt wheel, the driving belt wheel is connected with a driven belt wheel belt, the driven belt wheel is fixedly connected to the outside of a rotating sleeve, one end, close to the driven belt wheel, of the rotating sleeve is in a solid seal mode, one end, far away from the driven belt wheel, of the rotating sleeve is a round hole, the rotating sleeve is fixedly connected with a water spraying ring pipe, water spraying rings are arranged on the outside of the water spraying ring pipe at intervals, and water spraying holes are uniformly formed in the water spraying rings, the smoke exhaust pipeline is characterized in that one end, provided with a circular orifice, of the rotating sleeve is rotatably connected with a water delivery pipe, a fixing plate is fixedly welded outside the water delivery pipe, a threaded fixing column is fixedly connected to the side surface of the smoke exhaust pipeline, and the fixing plate penetrates through the threaded fixing column and is in threaded connection with a fixing nut.

Furthermore, each inner wall of the second chamber is fixedly connected with a clamping block, a clamping notch is formed in the side surface of each clamping block, a clamping batten is clamped inside the clamping notch, and a water filtering screen plate is fixedly connected to the side surface of each clamping batten.

Furthermore, the water filter screen of the water filter screen plate is arranged at the lower end part of the connecting side plate of the water filter screen plate, and a vertical distance of 3-5CM is reserved between the upper surface of the water filter screen and the upper surface of the connecting side plate.

Furthermore, the front end of the water filtering screen plate is fixedly connected with a rectangular end plate, and the front end of the rectangular end plate is fixedly connected with a handle.

Further, the side surface of the rectangular end face plate far away from the handle is fixedly connected with a first magnetic plate, the side surface of the smoke exhaust pipeline close to the first magnetic plate is fixedly connected with a second magnetic plate, and the magnetism of the first magnetic plate is opposite to that of the second magnetic plate.

Furthermore, the bottom of the smoke exhaust pipeline close to the second chamber is fixedly connected with a water discharge pipe opening, and the outside of the water discharge pipeline is fixedly connected with a manual valve.

Furthermore, the outer diameter of the water pipe is matched with the inner diameter of the rotating sleeve, and a wear-resistant sealing ring is arranged at the joint of the water pipe and the rotating sleeve.

(III) advantageous effects

The utility model has the following beneficial effects:

1. according to the utility model, under the action of water pressure, water is sprayed out of the water spray holes to adsorb and remove dust and carbonized particles in tail gas passing through the smoke exhaust pipeline, the rotating sleeve and the water spray ring pipe rotate under the driving action of the driving motor, so that water can be sprayed out of the water spray holes uniformly, and meanwhile, under the action of centrifugal force, dust is not easy to block the water spray holes, so that long-time normal work of the water spray holes is ensured, the effect of pre-adsorbing and removing dust of the dust and the carbonized particles passing through the smoke exhaust pipeline is achieved, the gravity of large-particle dust and the carbonized particles sprayed by the water is increased and then falls into the second chamber, and the condition that excessive dust and carbonized particles are not attached to the inner wall of the smoke exhaust pipeline is ensured.

2. According to the utility model, the large dust and the carbonized particles sprayed by water sprayed from the water spray holes fall into the second chamber under the action of gravity, the water filtered by the water filter screen plate is discharged from the water discharge pipe orifice, and the large dust and the carbonized particles are blocked at the upper end of the water filter screen plate, and the vertical distance of 3-5CM is reserved between the upper surface of the water filter screen plate and the upper surface of the connecting side plate, so that the large dust and the carbonized particles can be temporarily reserved in the area.

3. According to the utility model, after the water filtering screen plate and the clamping block are completely installed in the clamping notch, the first magnetic plate and the second magnetic plate are in surface contact, and the water filtering screen plate is kept stable in the clamping notch without shaking under the magnetic attraction effect, so that the problem that the water filtering screen plate shakes outwards along the clamping notch under the hydraulic impact effect is avoided.

Drawings

FIG. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a schematic diagram of a first chamber configuration of the present invention;

FIG. 3 is a schematic view of a second chamber configuration of the present invention;

FIG. 4 is an enlarged view of the structure at A in FIG. 3;

FIG. 5 is a schematic diagram of a top view configuration of the present invention;

FIG. 6 is an enlarged view of the structure at B in FIG. 5;

fig. 7 is an enlarged schematic view of the structure at C in fig. 5.

Reference numerals: 1. a smoke exhaust duct; 2. a smoke inlet; 3. a smoke outlet; 4. a first chamber; 5. a second chamber; 6. a drive motor; 7. a drive pulley; 8. a driven pulley; 9. rotating the sleeve; 10. a water spray ring pipe; 11. a water spraying spacer ring; 12. a water spray hole; 13. a water delivery pipe; 14. a fixing plate; 15. a threaded fixing column; 16. a clamping block; 17. clamping the notch; 18. clamping the laths; 19. a water filtering screen plate; 20. a rectangular end panel; 21. a handle; 22. a first magnetic plate; 23. a second magnetic plate; 24. a drain pipe orifice.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Example 1

Referring to fig. 1-6, a dust removing device for a tail flue of a power station boiler comprises a smoke exhaust pipe 1, wherein the left end of the smoke exhaust pipe 1 is a smoke inlet 2, the right end of the smoke exhaust pipe 1 is a smoke outlet 3, the upper part of the smoke exhaust pipe 1 protrudes upwards to form a first chamber 4, the lower end of the smoke exhaust pipe 1 protrudes downwards to form two second chambers 5, the top of the smoke exhaust pipe 1 is fixedly provided with a driving motor 6, the output shaft of the driving motor 6 is fixedly connected with a driving belt wheel 7, the driving belt wheel 7 is in belt connection with a driven belt wheel 8, the driven belt wheel 8 is fixedly connected with the outside of a rotating sleeve 9, one end of the rotating sleeve 9 close to the driven belt wheel 8 is in solid seal, one end of the rotating sleeve 9 far away from the driven belt wheel 8 is a circular orifice, the rotating sleeve 9 is fixedly connected with a water spraying ring pipe 10, water spraying rings 11 are arranged at intervals outside the water spraying ring 10, and water spraying holes 12 are uniformly arranged on the water spraying rings 11, the one end that the circular drill way was seted up to rotating sleeve pipe 9 rotates with raceway 13 and is connected, the external diameter of raceway 13 and the internal diameter looks adaptation of rotating sleeve pipe 9, the junction of raceway 13 and rotating sleeve pipe 9 is provided with wear-resisting type sealing washer, the outside fixed welding of raceway 13 has fixed plate 14, the side surface fixedly connected with screw thread fixed column 15 of exhaust pipe 1, fixed plate 14 passes screw thread fixed column 15 and uses fixation nut threaded connection.

In the embodiment, when the device is used, the water pipe 13 is connected with the water outlet pipe joint of the water pump, after the water pump is started, water enters the rotating sleeve 9 through the water pipe 13, the driving motor 6 starts to rotate, the driving motor 6 drives the driving belt wheel 7 to start to rotate, the driving belt wheel 7 drives the driven belt wheel 8 to rotate through the belt, then the driven belt wheel 8 drives the rotating sleeve 9 to rotate, the rotating sleeve 9 drives the water spraying ring pipe 10 to rotate, water is sprayed out from the water spraying holes 12 under the action of water pressure to adsorb and remove dust and carbonized particles in the tail gas passing through the smoke exhaust pipeline 1, the rotating sleeve 9 and the water spraying ring pipe 10 rotate under the driving action of the driving motor 6, so that the water can be sprayed out from the uniform water spraying holes 12, meanwhile, the dust is not easy to block the water spraying holes 12 under the action of centrifugal force, and the long-time normal work of the water spraying holes 12 is ensured, the effect of carrying out the preliminary adsorption dust removal to the dust and the carbonization particulate matter through exhaust pipe 1 has been reached for by the water drop into second cavity 5 behind the 1 dust of large granule and the carbonization particulate matter gravity increase after drenching, can not adhere to too much dust and carbonization particulate matter on the inner wall of exhaust pipe 1.

Example 2

Referring to fig. 1 to 7, the present embodiment is further optimized based on embodiment 1, specifically, a clamping block 16 is fixedly connected to an inner wall of each second chamber 5, a clamping notch 17 is formed in a side surface of the clamping block 16, a clamping slat 18 is clamped inside the clamping notch 17, and a water screen plate 19 is fixedly connected to a side surface of the clamping slat 18.

Specifically, the water filter screen of the water filter screen plate 19 is arranged at the lower end part of the connecting side plate of the water filter screen plate 19, and a vertical distance of 3-5CM is reserved between the upper surface of the water filter screen and the upper surface of the connecting side plate.

Specifically, the front end of the water filtering screen plate 19 is fixedly connected with a rectangular end plate 20, and the front end of the rectangular end plate 20 is fixedly connected with a handle 21.

Specifically, the bottom of the smoke exhaust pipeline 1 close to the second chamber 5 is fixedly connected with a water discharge pipe opening 24, and the outside of the water discharge pipe opening 24 is fixedly connected with a manual valve.

In this embodiment, the massive dust and the carbonized particles after being sprayed by the water sprayed from the water spray holes 12 fall into the second chamber 5 under the action of gravity, the water filtered by the water filter screen 19 is discharged from the water discharge pipe orifice 24, and the massive dust and the carbonized particles are blocked to the upper end of the water filter screen 19, because the vertical distance of 3-5CM is reserved between the upper surface of the water filter screen 19 and the upper surface of the connecting side plate, the massive dust and the carbonized particles can be temporarily reserved in the region, when the flow of the water discharged from the water discharge pipe orifice 24 is obviously reduced, only the manual valve needs to be rotated to close the water discharge pipe orifice 24, and the water filter screen 19 and the clamping strip plate 18 can be pulled out from the clamping notch 17, so that the purpose of conveniently cleaning the massive dust and the carbonized particles after being filtered is achieved.

Example 3

Referring to fig. 6-7, the present embodiment is optimized based on the embodiment 1 or 2, specifically, a first magnetic plate 22 is fixedly connected to a side surface of the rectangular end plate 20 away from the handle 21, a second magnetic plate 23 is fixedly connected to a side surface of the smoke exhaust pipe 1 close to the first magnetic plate 22, and the first magnetic plate 22 and the second magnetic plate 23 have opposite magnetism.

In this embodiment, after water filtration otter board 19 and joint piece 16 are installed into joint notch 17 in good condition, surface contact between first magnetic sheet 22 and the second magnetic sheet 23 this moment for water filtration otter board 19 keeps steady not taking place to rock in joint notch 17 under the magnetism actuation effect, thereby has avoided water filtration otter board 19 to outwards rock along joint notch 17 problem appearance under the water conservancy impact effect.

In summary, the following steps: in the utility model, under the action of water pressure, water is sprayed out from the water spray holes 12 to adsorb and remove dust and carbonized particles in the tail gas passing through the smoke exhaust pipeline 1, under the driving action of the driving motor 6, the rotating sleeve 9 and the water spray ring pipe 10 rotate, so that water can be sprayed out from the water spray holes 12 uniformly, and simultaneously, under the action of centrifugal force, dust is not easy to block the water spray holes 12, thereby ensuring the long-time normal work of the water spray holes 12, achieving the function of pre-adsorbing and removing dust of the dust and the carbonized particles passing through the smoke exhaust pipeline 1, leading the dust and the carbonized particles of large particles 1 sprayed by water to fall into the second chamber 5 after the gravity of the dust and the carbonized particles of the large particles is increased, ensuring that excessive dust and carbonized particles cannot be adhered to the inner wall of the smoke exhaust pipeline 1, and keeping a vertical distance of 3-5CM between the upper surface of the water filter screen plate 19 and the upper surface of the connecting side plate, therefore, the large dust and the carbonized particles can be temporarily kept in the area, when the flow of water discharged from the water discharge pipe opening 24 is obviously reduced, only the manual valve needs to be rotated, the water discharge pipe opening 24 at the position is closed, and the water filtering screen plate 19 and the clamping lath 18 are pulled out from the clamping notch 17, so that the aim of conveniently cleaning the large dust and the carbonized particles after filtration is fulfilled.

The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention, and the scope of the present invention is defined by the appended claims, and all structural changes that can be made by using the contents of the description and the drawings of the present invention are intended to be covered by the scope of the present invention.

Claims

1. The utility model provides a power plant boiler afterbody flue dust collector, includes smoke exhaust pipe (1), the left end of smoke exhaust pipe (1) is for advancing smoke mouth (2), the right-hand member of smoke exhaust pipe (1) is outlet flue (3), its characterized in that: the upper part of the smoke exhaust pipeline (1) protrudes upwards to form a first cavity (4), the lower end of the smoke exhaust pipeline (1) protrudes downwards to form two second cavities (5), a driving motor (6) is fixedly installed at the top of the smoke exhaust pipeline (1), an output shaft of the driving motor (6) is fixedly connected with a driving belt wheel (7), the driving belt wheel (7) is connected with a driven belt wheel (8) through a belt, the driven belt wheel (8) is fixedly connected with the outer part of a rotating sleeve (9), one end of the rotating sleeve (9) close to the driven belt wheel (8) is in solid seal, one end of the rotating sleeve (9) far away from the driven belt wheel (8) is in a round hole, the rotating sleeve (9) is fixedly connected with a water spraying ring pipe (10), water spraying spacer rings (11) are arranged at intervals outside the water spraying ring pipe (10), and water spraying holes (12) are uniformly formed in the water spraying ring (11), the smoke exhaust pipeline is characterized in that one end, provided with a circular orifice, of the rotating sleeve (9) is rotatably connected with a water delivery pipe (13), a fixing plate (14) is fixedly welded outside the water delivery pipe (13), a threaded fixing column (15) is fixedly connected to the side surface of the smoke exhaust pipeline (1), and the fixing plate (14) penetrates through the threaded fixing column (15) and is in threaded connection with a fixing nut.

2. The utility boiler tail flue dust removal device of claim 1, characterized in that: every the inner wall fixedly connected with joint piece (16) of second cavity (5), joint notch (17) have been seted up to the side surface of joint piece (16), the inside joint of joint notch (17) has joint slat (18), the side surface fixedly connected with drainage otter board (19) of joint slat (18).

3. The utility boiler tail flue dust removal device of claim 2, characterized in that: the water filter screen of the water filter screen plate (19) is arranged at the lower end part of the connecting side plate of the water filter screen plate (19), and a vertical distance of 3-5CM is reserved between the upper surface of the water filter screen and the upper surface of the connecting side plate.

4. The utility boiler tail flue dust removal device of claim 3, characterized in that: the front end of the water filtering screen plate (19) is fixedly connected with a rectangular end plate (20), and the front end of the rectangular end plate (20) is fixedly connected with a handle (21).

5. The utility boiler tail flue dust removal device of claim 4, characterized in that: the side surface of handle (21) is kept away from in rectangle end panel (20) side surface fixedly connected with first magnetic sheet (22), side surface fixedly connected with second magnetic sheet (23) that smoke exhaust pipe (1) is close to first magnetic sheet (22), and the magnetism of first magnetic sheet (22) and second magnetic sheet (23) is opposite.

6. The utility boiler tail flue dust removal device of claim 1, characterized in that: the bottom of the smoke exhaust pipeline (1) close to the second chamber (5) is fixedly connected with a water discharge pipe opening (24), and the outside of the water discharge pipe opening (24) is fixedly connected with a manual valve.

7. The utility boiler tail flue dust removal device of claim 1, characterized in that: the outer diameter of the water pipe (13) is matched with the inner diameter of the rotating sleeve (9), and a wear-resistant sealing ring is arranged at the joint of the water pipe (13) and the rotating sleeve (9).