CN214370309U

CN214370309U - Flue gas purification and recovery system of coal-fired boiler

Info

Publication number: CN214370309U
Application number: CN202023271365.8U
Authority: CN
Inventors: 王上辅
Original assignee: Sichuan Province Zhonghuanguoneng Technology Co ltd
Current assignee: Sichuan Province Zhonghuanguoneng Technology Co ltd
Priority date: 2020-12-30
Filing date: 2020-12-30
Publication date: 2021-10-08
Anticipated expiration: 2030-12-30

Abstract

The utility model discloses a coal fired boiler's gas cleaning recovery system, including base, aspirator pump, positive and negative motor and collection box, the top left side fixed mounting of base has the aspirator pump, and the top of aspirator pump is connected with the air duct to the left side of base is fixed with the curb plate, the top of curb plate is provided with the rolling wheel, the right side of aspirator pump is connected with the connecting pipe, the output of positive and negative motor is connected with the threaded rod, and the top of threaded rod is provided with the case lid, the below of case lid is fixed with the mount, and the top right side of mount has seted up the through-hole, the outside of air duct is provided with the insulating tube. This coal fired boiler's gas cleaning recovery system is provided with mount, filter screen and active carbon net, can carry out purification treatment to the flue gas through inboard filter screen of mount and active carbon net to make the flue gas after the purification arrange the blast pipe through the through-hole in, make things convenient for the blast pipe to arrange in the collection box, improve the device's practicality.

Description

Flue gas purification and recovery system of coal-fired boiler

Technical Field

The utility model relates to a coal fired boiler correlation technique field specifically is a coal fired boiler's gas cleaning recovery system.

Background

Coal fired boiler is important heat supply equipment in national economy, and it is very extensive to use, when coal fired boiler used, can produce a large amount of flue gases, need handle the flue gas through flue gas recovery system, and to current flue gas recovery processing system, still have some defects, for example:

the flue gas purification recovery system of the existing coal-fired boiler is not good in flue gas purification effect when in use, inconvenient replacement of an internal filter screen and an active carbon layer is not convenient, heat in the flue gas is inconvenient to recover, and the use has limitation.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a coal fired boiler's gas cleaning recovery system to solve above-mentioned background art and propose current coal fired boiler's gas cleaning recovery system when using, it is not good to the purifying effect of flue gas, the change on inconvenient inside filter screen and activated carbon layer, thermal recovery in the inconvenient flue gas, the use has the problem of limitation.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a coal fired boiler's gas cleaning recovery system, includes base, aspirator pump, positive and negative motor and collection box, the top left side fixed mounting of base has the aspirator pump, and the top of aspirator pump is connected with the air duct to the left side of base is fixed with the curb plate, the top of curb plate is provided with the rolling wheel, the right side of aspirator pump is connected with the connecting pipe, and the right side and the collection box of connecting pipe communicate mutually to the below fixed mounting of collection box has positive and negative motor, the output of positive and negative motor is connected with the threaded rod, and the top of threaded rod is provided with the case lid to the below outside of case lid is connected with the sealing washer, the below of case lid is fixed with the mount, and the top right side of mount has seted up the through-hole, the outside of air duct is provided with the insulating tube, the top of collection box (8) is passed through blast pipe and collection box and is linked together.

Preferably, the end connection of air duct has the cover of breathing in, and air duct and curb plate be sliding connection to the air duct rolling is on the rolling wheel, and the connected mode of rolling wheel and curb plate is for rotating the connection simultaneously.

Preferably, the sealing ring is of a circular ring structure, the sealing ring and the tank cover are of an integrated structure, and the tank cover and the purifying tank form a clamping structure through a fixing frame.

Preferably, the mount is "concave" font structure, and the inside of mount is provided with filter screen and active carbon net to the middle part of filter screen and active carbon net is provided with the spread groove, and the connected mode of mount and threaded rod is threaded connection simultaneously.

Preferably, the filter screen is provided with two about activated carbon net's axis symmetry, and filter screen and activated carbon net all constitute with the mount and dismantle mounting structure to the internal surface welding of filter screen has the magnet strip, through the mutual magnetism connection of magnet strip between the filter screen.

Preferably, the heat preservation pipe includes outer pipe box, asbestos board and heat preservation sponge, and the inboard of outer pipe box is provided with the asbestos board to the inboard of asbestos board is provided with the heat preservation sponge.

Compared with the prior art, the beneficial effects of the utility model are that: the flue gas purification and recovery system of the coal-fired boiler;

(1) the air guide pipe, the heat preservation pipe and the winding wheel are arranged, so that the use of an air suction pump is facilitated, the flue gas exhausted from the exhaust port of the coal-fired boiler is conveniently recovered through the air suction cover at the tail end of the air guide pipe, the flue gas is conveniently exhausted into the treatment box through the air guide pipe, and the heat preservation of the heat in the flue gas is facilitated by matching the use of the asbestos plate and the heat preservation sponge on the heat preservation pipe on the surface of the air guide pipe, so that the use effect of the device is improved;

(2) the smoke purification device is provided with the fixing frame, the filter screen and the activated carbon net, smoke can be purified through the filter screen and the activated carbon net on the inner side of the fixing frame, the purified smoke is discharged into the exhaust pipe through the through holes, the exhaust pipe is conveniently discharged into the recovery box, and the practicability of the device is improved;

(3) be provided with threaded rod and magnet, can make positive and negative motor pass through the threaded rod and drive mount threaded connection, conveniently make the mount rotate upwards, make the case lid break away from the purifying box, make things convenient for the rotation of mount to discharge, and then conveniently make the dismantlement of the inboard filter screen of mount, constitute mutual magnetism through magnet between the filter screen and connect, made things convenient for the dismantlement of filter screen.

Drawings

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

FIG. 2 is a schematic view of the bottom structure of the case cover of the present invention;

FIG. 3 is a schematic view of the connection structure of the heat preservation pipe of the present invention;

fig. 4 is the side view structure schematic diagram of the filter screen of the utility model.

In the figure: 1. a base; 2. a getter pump; 3. an air duct; 4. a side plate; 5. a winding wheel; 6. an air intake cover; 7. a connecting pipe; 8. a purification box; 9. a positive and negative motor; 10. a threaded rod; 11. a box cover; 12. a seal ring; 13. a fixed mount; 14. a filter screen; 15. an activated carbon mesh; 16. an exhaust pipe; 17. a recycling bin; 18. a through hole; 19. connecting grooves; 20. a magnet bar; 21. a heat preservation pipe; 211. an outer pipe sleeve; 212. an asbestos sheet; 213. a heat-insulating sponge.

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.

Referring to fig. 1-4, the present invention provides a technical solution: a flue gas purification and recovery system of a coal-fired boiler comprises a base 1, an air suction pump 2, an air duct 3, a side plate 4, a winding wheel 5, an air suction cover 6, a connecting pipe 7, a purification box 8, a positive and negative motor 9, a threaded rod 10, a box cover 11, a sealing ring 12, a fixing frame 13, a filter screen 14, an activated carbon net 15, an exhaust pipe 16, a recovery box 17, a through hole 18, a connecting groove 19, a magnet strip 20, a heat preservation pipe 21, an outer pipe sleeve 211, an asbestos plate 212 and a heat preservation sponge 213, wherein the air suction pump 2 is fixedly arranged on the left side above the base 1, the air duct 3 is connected above the air suction pump 2, the side plate 4 is fixed on the left side of the base 1, the winding wheel 5 is arranged above the side plate 4, the connecting pipe 7 is connected on the right side of the air suction pump 2, the right side of the connecting pipe 7 is communicated with the purification box 8, the positive and negative motor 9 is fixedly arranged below the purification box 8, the output end of the positive and negative motor 9 is connected with the threaded rod 10, and a box cover 11 is arranged above the threaded rod 10, a sealing ring 12 is connected to the outer side of the lower part of the box cover 11, a fixed frame 13 is fixed below the box cover 11, a through hole 18 is formed in the right side of the upper part of the fixed frame 13, a heat preservation pipe 21 is arranged on the outer side of the air guide pipe 3, and the upper part of the purifying box 8 is communicated with a recovery box 17 through an exhaust pipe 16.

According to the technical scheme, the tail end of the air duct 3 is connected with an air suction cover 6 in fig. 1, the air duct 3 is in sliding connection with a side plate 4, the air duct 3 is wound on a winding wheel 5, meanwhile, the winding wheel 5 is connected with the side plate 4 in a rotating mode, absorption of smoke is facilitated, a sealing ring 12 is of a circular ring structure, the sealing ring 12 and a box cover 11 are of an integrated structure, and the box cover 11 is in clamping connection with a purifying box 8 through a fixing frame 13, so that the box cover 11 is convenient to seal and connect.

As shown in fig. 1 and 2, the fixing frame 13 is of a concave structure, the inside of the fixing frame 13 is provided with the filter screen 14 and the activated carbon screen 15, the middle parts of the filter screen 14 and the activated carbon screen 15 are provided with the connecting groove 19, and meanwhile, the fixing frame 13 is in threaded connection with the threaded rod 10, so that the smoke can be conveniently filtered and purified.

As in fig. 1 and 4, two filter screens 14 are symmetrically arranged about the central axis of the activated carbon net 15, the filter screens 14 and the activated carbon net 15 both form a dismounting and mounting structure with the fixing frame 13, and the magnet strips 20 are welded on the inner surface of the filter screens 14, and the filter screens 14 are magnetically connected with each other through the magnet strips 20, so that the filter screens 14 and the activated carbon net 15 are convenient to dismount and replace.

As in fig. 1 and 3, the thermal insulation pipe 21 includes an outer pipe sleeve 211, an asbestos plate 212 and a thermal insulation sponge 213, the inner side of the outer pipe sleeve 211 is provided with the asbestos plate 212, and the inner side of the asbestos plate 212 is provided with the thermal insulation sponge 213, so that the thermal insulation effect of smoke is improved.

The working principle is as follows: firstly, when the device is used, the device is moved to a place needing to be used, then the air suction cover 6 is arranged at an exhaust port of a coal-fired boiler, the air suction pump 2 is opened, the air suction pump 2 sucks flue gas into the purification box 8 through the air suction cover 6 on the surface of the air guide pipe 3, the flue gas is conveniently purified through the filter screen 14 and the activated carbon net 15 on the inner side of the fixing frame 13 above the purification box 8, the filter screen 14 is symmetrically arranged about the central axis of the activated carbon net 15, the purification effect of the flue gas is conveniently improved, and the purified flue gas is discharged into the recovery box 17 through the through hole 18, so that the heat of the flue gas is conveniently recovered;

when the filter screen 14 and the activated carbon net 15 need to be replaced, the positive and negative motors 9 are opened, the positive and negative motors 9 drive the fixing frame 13 on the inner side of the box cover 11 through the threaded rods 10 to be in threaded connection, the fixing frame 13 is convenient to drive the filter screen 14 and the activated carbon net 15 to extend upwards, the lower portion of the fixing frame 13 is of a concave structure, the filter screen 14 forms a magnetic structure through the magnet strips 20, the filter screen 14 is convenient to disassemble and assemble, the using effect of the device is improved, the heat preservation pipe 21 is arranged on the outer side of the air duct 3, the heat preservation effect of smoke inside the air duct 3 can be improved through the asbestos plate 212 and the heat preservation sponge 213 on the inner side of the heat preservation pipe 21, the using principle of the smoke purification and recovery system of the coal-fired boiler is achieved, and the content which is not described in detail in the description belongs to the prior art known by professional technicians in the field.

The utility model discloses the standard part that uses all can purchase from the market, and dysmorphism piece all can be customized according to the description with the record of drawing of description, and the concrete connected mode of each part all adopts conventional means such as ripe bolt, rivet, welding among the prior art, and machinery, part and equipment all adopt among the prior art, and conventional model, including the conventional connected mode among the circuit connection adoption prior art, and the details are not repeated here, and the content that does not make detailed description in this description belongs to the prior art that skilled person in the art knows.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. The utility model provides a coal fired boiler's gas cleaning recovery system, includes base (1), aspirator pump (2), positive and negative motor (9) and collection box (17), its characterized in that: the air guide device is characterized in that an air suction pump (2) is fixedly mounted on the left side of the upper portion of the base (1), an air guide pipe (3) is connected to the upper portion of the air suction pump (2), a side plate (4) is fixed to the left side of the base (1), a winding wheel (5) is arranged on the upper portion of the side plate (4), a connecting pipe (7) is connected to the right side of the air suction pump (2), the right side of the connecting pipe (7) is communicated with a purifying box (8), a positive and negative motor (9) is fixedly mounted below the purifying box (8), the output end of the positive and negative motor (9) is connected with a threaded rod (10), a box cover (11) is arranged above the threaded rod (10), a sealing ring (12) is connected to the outer side of the lower portion of the box cover (11), a fixing frame (13) is fixed to the lower portion of the box cover (11), a through hole (18) is formed in the right side of the upper portion of the fixing frame (13), and a heat preservation pipe (21) is arranged on the outer side of the air guide pipe (3), the upper part of the purification box (8) is communicated with a recovery box (17) through an exhaust pipe (16).

2. The system for purifying and recovering flue gas of a coal-fired boiler according to claim 1, wherein: the tail end of the air duct (3) is connected with an air suction cover (6), the air duct (3) is in sliding connection with the side plate (4), the air duct (3) is wound on the winding wheel (5), and meanwhile the winding wheel (5) is in rotating connection with the side plate (4).

3. The system for purifying and recovering flue gas of a coal-fired boiler according to claim 1, wherein: the sealing ring (12) is of a circular ring-shaped structure, the sealing ring (12) and the box cover (11) are of an integrated structure, and the box cover (11) and the purifying box (8) form a clamping structure through a fixing frame (13).

4. The system for purifying and recovering flue gas of a coal-fired boiler according to claim 1, wherein: the fixing frame (13) is of a concave structure, a filter screen (14) and an activated carbon net (15) are arranged inside the fixing frame (13), connecting grooves (19) are formed in the middle of the filter screen (14) and the activated carbon net (15), and meanwhile the fixing frame (13) is in threaded connection with the threaded rod (10).

5. The system for purifying and recovering flue gas of a coal-fired boiler according to claim 4, wherein: filter screen (14) are provided with two about the axis symmetry of active carbon net (15), and filter screen (14) and active carbon net (15) all constitute with mount (13) and dismantle mounting structure to the internal surface welding of filter screen (14) has magnet strip (20), passes through magnet strip (20) interconnect magnetism between filter screen (14).

6. The system for purifying and recovering flue gas of a coal-fired boiler according to claim 1, wherein: the heat preservation pipe (21) comprises an outer pipe sleeve (211), an asbestos plate (212) and heat preservation sponge (213), the asbestos plate (212) is arranged on the inner side of the outer pipe sleeve (211), and the heat preservation sponge (213) is arranged on the inner side of the asbestos plate (212).