CN214597867U

CN214597867U - Coal fired boiler flue gas desulfurization denitration dust collector

Info

Publication number: CN214597867U
Application number: CN202120858791.7U
Authority: CN
Inventors: 曹海祥; 刘威
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-04-25
Filing date: 2021-04-25
Publication date: 2021-11-05
Anticipated expiration: 2031-04-25

Abstract

The utility model relates to the technical field of flue gas treatment of coal-fired boilers, and discloses a flue gas desulfurization, denitrification and dust removal device of a coal-fired boiler, which comprises an air duct, a filtering mechanism, a discharging mechanism and an ash scraping mechanism; the filtering mechanism is used for filtering gas, is arranged in the gas guide pipe and comprises a sliding plate which is connected with the inside of the gas guide pipe in a sliding way, and the sliding plate is provided with a gas hole; the ash scraping mechanism is used for cleaning dust accumulated outside the sliding plate and comprises a scraping plate which is in sliding connection with the side wall of the air guide pipe; the discharging mechanism is used for storing dust scraped by the dust scraping mechanism and is arranged on one side, far away from the dust scraping mechanism, of the air duct. The utility model is suitable for a coal fired boiler flue gas desulfurization denitration dust collector, through setting up the filtering mechanism of horizontal slip and scraping grey mechanism and cooperating for scrape grey mechanism and can clear up filtering mechanism after filtering mechanism has attached to more dust, thereby realized the automatically cleaning effect of whole device.

Description

Coal fired boiler flue gas desulfurization denitration dust collector

Technical Field

The utility model relates to a coal fired boiler flue gas handles technical field, specifically is a coal fired boiler flue gas desulfurization denitration dust collector.

Background

The boiler is an energy conversion device, the energy input to the boiler comprises chemical energy and electric energy in fuel, and the boiler outputs steam, high-temperature water or an organic heat carrier with certain heat energy. The internal fuel of some boilers is coal, and the coal can generate gases containing a large amount of smoke dust and harmful substances in the combustion process, and the gases can be discharged to the outside only by desulfurization and denitrification treatment.

The existing desulfurization and denitrification devices directly introduce gas into relevant treatment equipment and do not effectively treat smoke dust.

However, these devices do not effectively treat the fumes, resulting in clogging of the device with fumes after a period of operation, and therefore require the presence of associated dust-removing components inside the device.

SUMMERY OF THE UTILITY MODEL

The utility model provides a coal fired boiler flue gas desulfurization denitration dust collector has solved the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

a coal-fired boiler flue gas desulfurization, denitrification and dust removal device comprises a gas guide pipe, a filtering mechanism, a discharging mechanism and an ash scraping mechanism;

the filtering mechanism is used for filtering gas, is arranged in the gas guide pipe and comprises a sliding plate which is connected with the inside of the gas guide pipe in a sliding way, and the sliding plate is provided with a gas hole;

the ash scraping mechanism is used for cleaning dust accumulated outside the sliding plate and comprises a scraping plate which is in sliding connection with the side wall of the air guide pipe;

the discharging mechanism is used for storing dust scraped by the dust scraping mechanism and is arranged on one side, far away from the dust scraping mechanism, of the air duct.

As a preferred technical scheme of the utility model, one side that the air duct inner wall is close to scraping grey mechanism is equipped with the second fixed plate, second fixed plate sliding connection second guide bar, and the second guide bar is close to the one end of scraping grey mechanism and connects the one end of sliding plate.

As a preferred technical scheme of the utility model, the one end that the sliding plate was kept away from to the second guide bar is equipped with the second stopper, is equipped with the second spring between second stopper and the second fixed plate.

As a preferred technical scheme of the utility model, the one end that the air duct was kept away from to the scraper blade is equipped with first fixed plate, the first guide bar of first fixed plate sliding connection, and first guide bar is close to the one end of air duct and connects the air duct outside, and the one end that the air duct was kept away from to first guide bar is equipped with first stopper, is equipped with first spring between first stopper and the first fixed plate.

As an optimized technical scheme of the utility model, one side that the ash mechanism was kept away from to the air duct is equipped with the discharge opening.

As an optimized technical scheme of the utility model, one side that the sliding plate is close to row material mechanism is equipped with the baffle.

As a preferred technical scheme of the utility model, the outside of discharge opening is equipped with the material storage box, and one side that the material storage box is close to the air duct rotates the one end of connecting the rotor plate, and one side sliding connection third guide bar of air duct is kept away from to the material storage box, and the one end that is close to the discharge opening of third guide bar rotates the one end of joint support pole, and the other end of bracing piece rotates and connects the rotor plate, the one end that the discharge opening was kept away from to the third guide bar is equipped with the third stopper, is equipped with the third spring between third stopper and the material storage box.

As an optimal technical scheme of the utility model, the both ends of air duct are equipped with the mount pad, and the outside of mount pad is equipped with the mounting hole.

The utility model discloses have following useful part:

the utility model is suitable for a coal fired boiler flue gas desulfurization denitration dust collector, filter mechanism through setting up the horizontal slip cooperates with scraping grey mechanism, make and scrape grey mechanism and can clear up filter mechanism after filter mechanism has attached to more dust, thereby the automatically cleaning effect of whole device has been realized, make the device can be long-time work of going on, the maintenance degree of difficulty of device has been reduced, and can effectually carry out the processing that removes dust to gas, make subsequent SOx/NOx control equipment can be in comparatively stable operational environment.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a flue gas desulfurization, denitrification and dust removal device of a coal-fired boiler.

FIG. 2 is a schematic view of the internal structure of a flue gas desulfurization, denitrification and dust removal device for a coal-fired boiler.

Fig. 3 is a front view of fig. 2.

FIG. 4 is a schematic structural diagram of a discharging mechanism in a flue gas desulfurization, denitrification and dust removal device of a coal-fired boiler.

FIG. 5 is a schematic structural diagram of a filtering mechanism in a flue gas desulfurization, denitrification and dust removal device of a coal-fired boiler.

FIG. 6 is a schematic structural diagram of a dust scraping mechanism in a flue gas desulfurization, denitrification and dust removal device of a coal-fired boiler.

In the figure: 1. a mounting seat; 2. mounting holes; 3. an air duct; 4. a squeegee; 5. a first guide bar; 6. a first fixing plate; 7. a first spring; 8. a first stopper; 9. a second fixing plate; 10. a second guide bar; 11. a second limiting block; 12. a second spring; 13. a sliding plate; 14. a baffle plate; 15. air holes are formed; 16. a discharge opening; 17. a material storage box; 18. a rotating plate; 19. a third guide bar; 20. a third spring; 21. a third limiting block; 22. a support rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In one embodiment, referring to fig. 1, a flue gas desulfurization, denitrification and dust removal device for a coal-fired boiler comprises a gas guide tube 3, a filtering mechanism, a discharging mechanism and an ash scraping mechanism; the filtering mechanism is used for filtering the gas, is arranged in the gas guide tube 3, and comprises a sliding plate 13 which is connected with the inside of the gas guide tube 3 in a sliding way, and the sliding plate 13 is provided with a vent hole 15; the ash scraping mechanism is used for cleaning dust accumulated outside the sliding plate 13 and comprises a scraping plate 4 which is connected with the side wall of the air duct 3 in a sliding way; the discharging mechanism is used for storing dust scraped by the dust scraping mechanism and is arranged on one side of the air duct 3 far away from the dust scraping mechanism.

In one aspect of this embodiment, referring to fig. 1, a second fixing plate 9 is disposed on a side of an inner wall of the air duct 3 near the ash scraping mechanism, the second fixing plate 9 is slidably connected to a second guiding rod 10, and an end of the second guiding rod 10 near the ash scraping mechanism is connected to an end of a sliding plate 13. Through the sliding plate 13 which slides left and right, after the air holes 15 on the sliding plate 13 are blocked, the sliding plate 13 can move to the right side under the action of air flow, so that the sliding plate can work in cooperation with the ash scraping mechanism.

In one aspect of this embodiment, referring to fig. 1-3, a second stopper 11 is disposed at an end of the second guiding rod 10 away from the sliding plate 13, and a second spring 12 is disposed between the second stopper 11 and the second fixing plate 9. To facilitate the resetting of slide plate 13, a second spring 12 may be provided between slide plate 13 and airway tube 3, and slide plate 13 may be located on the left side of airway tube 3 in the initial state by the elastic force of second spring 12.

In a case of this embodiment, please refer to fig. 6, a first fixing plate 6 is disposed at an end of the scraper 4 away from the air guide tube 3, the first fixing plate 6 is slidably connected to a first guiding rod 5, an end of the first guiding rod 5 close to the air guide tube 3 is connected to an outside of the air guide tube 3, a first limiting block 8 is disposed at an end of the first guiding rod 5 away from the air guide tube 3, and a first spring 7 is disposed between the first limiting block 8 and the first fixing plate 6. In order to improve the force value of the scraper 4 for scraping the sliding plate 13 downwards, a first spring 7 is arranged between the scraper 4 and the air guide pipe 3, and the scraper 4 has enough force to move downwards through the elastic force of the first spring 7, so that the ash scraping treatment work of the sliding plate 13 is realized.

In one aspect of this embodiment, referring to fig. 4, a discharge opening 16 is formed at a side of the air duct 3 away from the ash scraping mechanism. To facilitate the discharge of the scraped dust, a discharge opening 16 may be provided at the bottom of the air duct 3 so that the scraped dust is discharged through the discharge opening 16.

In one aspect of this embodiment, referring to fig. 5, a baffle 14 is disposed on a side of the sliding plate 13 adjacent to the discharging mechanism. When slide plate 13 is on the left side, to avoid air leakage from discharge opening 16 and affect subsequent air treatment, baffle 14 may be provided on the right side of the lower end of slide plate 13, and discharge opening 16 may be blocked by baffle 14 to maintain the air tightness of airway 3.

In a case of this embodiment, please refer to fig. 4, a material storage box 17 is disposed outside the discharge opening 16, one side of the material storage box 17 close to the air duct 3 is rotatably connected to one end of a rotating plate 18, one side of the material storage box 17 far from the air duct 3 is slidably connected to a third guide rod 19, one end of the third guide rod 19 close to the discharge opening 16 is rotatably connected to one end of a support rod 22, the other end of the support rod 22 is rotatably connected to the rotating plate 18, one end of the third guide rod 19 far from the discharge opening 16 is provided with a third limiting block 21, and a third spring 20 is disposed between the third limiting block 21 and the material storage box 17. In a normal operation state, the third spring 20 may push the third guide rod 19 to move to the right, so that the rotating plate 18 is pushed to rotate counterclockwise by the support rod 22, and the discharge opening 16 may be blocked by the rotating plate 18.

In one aspect of this embodiment, referring to fig. 1, two ends of the air duct 3 are provided with mounting seats 1, and the outer side of the mounting seats 1 is provided with mounting holes 2. In order to facilitate the installation of the air duct 3, the installation bases 1 can be arranged at the two ends of the air duct 3 and are connected with the exhaust equipment and the subsequent gas equipment through the installation bases 1 and the installation holes 2.

In the implementation process, the left end of the air duct 3 is connected with the exhaust end of the coal-fired boiler, the right end of the air duct 3 is connected with relevant equipment for desulfurization and denitrification, the whole device can be normally used at the moment, the scraper blade 4 is pulled upwards, the scraper blade 4 is separated from the sliding plate 13, the sliding plate 13 moves towards the left side under the action of the second spring 12, the lower end of the scraper blade 4 abuts against the second guide rod 10, and the device is in a dedusting treatment state at the moment.

When air with dust enters from the left end of the air duct 3, the air is filtered through the air holes 15 in the sliding plate 13 and then discharged through the right end of the air duct 3, along with the continuous operation of the device, a large amount of dust is attached to the left side of the air holes 15, the ventilation effect of the sliding plate 13 is gradually reduced, at the moment, the sliding plate 13 is subjected to a large wind resistance, so that the sliding plate 13 moves towards the right side under the action of the air flow, after the sliding plate 13 is separated from the scraper 4, at the moment, under the action of the first spring 7, the scraper 4 moves downwards, so that the scraper 4 scrapes off the dust attached to the left side of the sliding plate 13, and because the scraper 4 descends, the inside of the air duct 3 is blocked by the scraper 4, at the moment, the air pressure on the left side of the scraper 4 increases, so that the rotating plate 18 is pushed by the air to rotate clockwise, so that the discharge opening 16 is opened, and the dust scraped off by the scraper 4 falls into the material storage box 17, at this time, the scraper 4 is pulled out upward, and the slide plate 13 slides to the left side by the second spring 12, so that the entire apparatus is restored to the original state, and the dust removal processing can be continued.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A coal-fired boiler flue gas desulfurization denitration dust collector is characterized by comprising a gas guide pipe, a filtering mechanism, a discharging mechanism and an ash scraping mechanism;

2. The desulfurization, denitrification and dust removal device for flue gas of a coal-fired boiler according to claim 1, wherein a second fixed plate is arranged on the inner wall of the gas duct on the side close to the ash scraping mechanism, the second fixed plate is slidably connected with a second guide rod, and one end of the second guide rod close to the ash scraping mechanism is connected with one end of the sliding plate.

3. The coal-fired boiler flue gas desulfurization, denitrification and dust removal device as claimed in claim 2, wherein a second limiting block is arranged at one end of the second guide rod away from the sliding plate, and a second spring is arranged between the second limiting block and the second fixing plate.

4. The coal fired boiler flue gas desulfurization, denitrification and dust removal device of claim 1, wherein the end of the scraper away from the gas guide tube is provided with a first fixing plate, the first fixing plate is slidably connected with a first guide rod, the end of the first guide rod close to the gas guide tube is connected with the outside of the gas guide tube, the end of the first guide rod away from the gas guide tube is provided with a first limiting block, and a first spring is arranged between the first limiting block and the first fixing plate.

5. The desulfurization, denitrification and dust removal device for flue gas of a coal-fired boiler according to claim 1, wherein a discharge opening is formed in one side of the gas guide pipe away from the ash scraping mechanism.

6. The desulfurization, denitrification and dust removal device for flue gas of a coal-fired boiler according to claim 5, wherein a baffle is arranged on one side of the sliding plate close to the discharging mechanism.

7. The flue gas desulfurization, denitrification and dust removal device of the coal-fired boiler according to claim 5, wherein a material storage box is arranged outside the discharge opening, one side of the material storage box close to the gas-guide tube is rotatably connected with one end of the rotating plate, one side of the material storage box far away from the gas-guide tube is slidably connected with a third guide rod, one end of the third guide rod close to the discharge opening is rotatably connected with one end of the support rod, the other end of the support rod is rotatably connected with the rotating plate, one end of the third guide rod far away from the discharge opening is provided with a third limiting block, and a third spring is arranged between the third limiting block and the material storage box.

8. The coal-fired boiler flue gas desulfurization, denitrification and dust removal device of claim 1, wherein both ends of the gas guide tube are provided with mounting seats, and the outer side of the mounting seats is provided with mounting holes.