CN213362487U

CN213362487U - Ash cleaning structure of waste incineration boiler

Info

Publication number: CN213362487U
Application number: CN202021290740.0U
Authority: CN
Inventors: 王晓阳; 张维峰; 杨煌坤; 卢辉
Original assignee: Nanan Shengyuan Environmental Protection Electric Power Co ltd
Current assignee: Nanan Shengyuan Environmental Protection Electric Power Co ltd
Priority date: 2020-07-03
Filing date: 2020-07-03
Publication date: 2021-06-04
Anticipated expiration: 2030-07-03

Abstract

The utility model discloses a dust cleaning structure of a waste incineration boiler, which comprises a sealing steel door, a burnout area, a burner, an air inlet, a secondary cellar, a first channel pipe, an acid removing tower, a dust removing and dust cleaning mechanism, a second channel pipe, a waste heat recoverer, a supporting leg column, a third channel pipe, a deslagging box, a draught fan and a chimney column, wherein the inner side of the sealing steel door is connected with the right side of the burner, therefore, the flowing gas is cleared of lime particles through the internally installed slaked lime frame, and the rising gas is cleared after being adsorbed, recovered and gathered by the dedusting filter bag frame which is installed and connected with the lower end of the card support and matched with the dedusting filter bag.

Description

Ash cleaning structure of waste incineration boiler

Technical Field

The utility model relates to a refuse incineration boiler's deashing structure belongs to msw incineration technical field.

Background

The waste incineration boiler has frequent and unstable operation conditions and output load fluctuation compared with the conventional coal-fired power station boiler due to the particularity of fuel, so that the situations of low efficiency of a heat exchange surface, influence on the output of the boiler, reduction of forced shutdown caused by blockage of a flue by deposited dust and the like due to coking and deposited dust on a heating surface are prevented for ensuring the normal operation of the waste incineration boiler.

The prior art discloses the application numbers as follows: CN 201721761902.2's a waste incineration boiler's deashing structure includes: a furnace wall soot blower and a pulse shock wave soot blower are arranged in a cavity flue formed by water-cooled walls; an evaporation heating surface with the flue gas temperature of 600 ℃ or above is arranged at the front part of the superheater and is additionally provided with a pulse shock wave soot blower; a steam soot blower is additionally arranged on the superheater heating surface with the flue gas temperature of 400 ℃ or above, but the prior art has poor effect of removing burnt-out dust particles in the incinerator, so that the surrounding environment is polluted after long-term untreated emission, and the surrounding air quality is reduced.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims at providing a refuse incineration boiler's deashing structure to it is relatively poor to the effect of cleaing away of burning off the dust particulate matter of burning off of burning furnace inside to solve prior art, leads to producing the pollution to the surrounding environment after long-term untreated discharges, thereby has reduced the problem of air quality on every side.

In order to achieve the above purpose, the present invention is realized by the following technical solution: a dust cleaning structure of a waste incineration boiler comprises a sealing steel door, a burnout zone, a burner, an air inlet, a secondary fuel pit, a first channel pipe, an acid removing tower, a dust removing and cleaning mechanism, a second channel pipe, a waste heat recoverer, a supporting leg column, a third channel pipe, a slag removing box, an induced draft fan and a chimney column, the inner side of the sealing steel door is connected with the right side of the burner, the burnout zone and the burner are of an integrated structure, the upper end of the burnout zone is connected with the lower end of the secondary combustion cellar, the right end of the air inlet is welded with the left end of the secondary combustion cellar, the lower end of the deacidification tower is connected with the upper end of the dust removing and ash cleaning mechanism, the upper end of the deacidification tower is welded with the left lower end of the second channel pipe, the right lower end of the second channel pipe is connected with the left lower end of the waste heat recoverer, the upper end of the induced draft fan is connected with the lower end of the chimney column, and the lower end of the induced draft fan is welded with the upper end of the deslagging box.

Furthermore, the dust removing and ash cleaning mechanism consists of a blanking ash hopper, an entity heat-insulating layer, a high-temperature resistant shell, a dust removing filter bag frame, a pattern plate bracket, a filtering activated carbon plate, an upper air outlet, a dust removing filter bag and a slaked lime frame, the ash falling hopper is embedded and arranged in the solid heat insulation layer, the solid heat insulation layer and the lower end of the high-temperature resistant shell are of an integrated structure, the upper end of the blanking ash hopper is jointed with the upper end of the slaked lime frame, the dedusting filter bag frame and the dedusting filter bag are of an integrated structure, the upper end of the dedusting filter bag frame is welded with the lower end of the card support, the dedusting filter bag is embedded and arranged in the high-temperature resistant shell, the upper end of the flower plate bracket is jointed with the lower end of the filtering active carbon plate, the upper gas outlet and the upper end of the high-temperature resistant shell are of an integrated structure, the lower end of the dedusting filter bag frame is bonded with the upper end of the slaked lime frame, and the slaked lime frame is embedded and installed in the high-temperature-resistant shell.

Furthermore, the right end of the secondary combustion cellar is connected with the upper left end of the first channel pipe, and the lower right end of the first channel pipe is embedded in the lower left end of the dust and ash removing mechanism.

Furthermore, the upper end of the upper gas outlet is welded with the lower end of the deacidification tower, and the right end of the second channel pipe is connected with the left end of the high-temperature-resistant shell.

Furthermore, the upper right end of the waste heat recoverer is connected with the lower end of the deslagging box through a third channel pipe, and the lower end of the deslagging box is welded with the upper end of the supporting leg column.

Further, the sealing steel door is made of stainless steel and has better hardness.

Further, the first channel pipe is made of aluminum alloy and has good corrosion resistance.

Advantageous effects

The utility model relates to a dust cleaning structure of a waste incineration boiler, structurally, incinerated gas flows through the inside of a first channel pipe and enters into a high-temperature resistant shell, thereby carry out the cleaing away of carrying out lime particulate matter to flowing gas through internally mounted's lime hydrate frame, moreover gaseous rising back is gone up and is being carried out the dust bag by card support lower extreme erection joint's dust bag frame cooperation and adsorb the gathering back and clear away the processing to rising inside dust of gas, thereby the further filtration activated carbon plate that goes on carrying out adsorption treatment to remaining particulate matter by the upper end again ensures to reduce the material to the external world after discharging from last gas outlet, the last inside unnecessary dust particulate matter falls down the back and discharges the collection processing through the inside blanking ash bucket of embedding of entity insulating layer, the high-efficiency processing to the residue dust after burning has been improved, the pollution to external environment after having avoided discharging.

Drawings

Other features, objects and advantages of the invention will become more apparent upon reading of the detailed description of non-limiting embodiments with reference to the following drawings:

FIG. 1 is a schematic structural view of an ash removal structure of a waste incineration boiler according to the present invention;

fig. 2 is a schematic structural diagram of the ash removal structure of the waste incineration boiler of the utility model.

In the figure: the device comprises a sealed steel door-1, a burnout zone-2, a combustor-3, an air inlet-4, a secondary cellar-5, a first channel pipe-6, an acid removal tower-7, a dust removal and ash removal mechanism-8, a second channel pipe-9, a waste heat recoverer-10, a supporting leg column-11, a third channel pipe-12, a deslagging box-13, an induced draft fan-14, a chimney column-15, a blanking ash hopper-81, an entity heat insulation layer-82, a high temperature resistant shell-83, a dust removal filter bag frame-84, a pattern plate support-85, a filtering activated carbon plate-86, an upper air outlet-87, a dust removal filter bag-88 and a slaked lime frame-89.

Detailed Description

In order to make the technical means, creation features, achievement purposes and functions of the present invention easy to understand, the present invention is further described below with reference to the following embodiments.

Referring to fig. 1 and 2, the present invention provides a technical solution of ash removing structure for a waste incineration boiler: the structure of the device comprises a sealing steel door 1, a burnout zone 2, a burner 3, an air inlet 4, a secondary cellar 5, a first channel pipe 6, an acid-removing tower 7, a dust-removing and ash-cleaning mechanism 8, a second channel pipe 9, a waste heat recoverer 10, a supporting leg column 11, a third channel pipe 12, a slag-removing box 13, an induced draft fan 14 and a chimney column 15, wherein the inner side of the sealing steel door 1 is connected with the right side of the burner 3, the burnout zone 2 and the burner 3 are of an integrated structure, the upper end of the burnout zone 2 is connected with the lower end of the secondary cellar 5, the right end of the air inlet 4 is welded with the left end of the secondary cellar 5, the lower end of the acid-removing tower 7 is connected with the upper end of the dust-removing and ash-cleaning mechanism 8, the upper end of the acid-removing tower 7 is welded with the left lower end of the second channel pipe 9, the right lower end of the second, the lower end of the induced draft fan 14 is welded with the upper end of the deslagging box 13, the dedusting and ash-cleaning mechanism 8 is composed of a blanking ash hopper 81, an entity thermal-insulation layer 82, a high-temperature-resistant shell 83, a dedusting filter bag frame 84, a card support 85, a filtering activated carbon card 86, an upper air outlet 87, a dedusting filter bag 88 and a slaked lime frame 89, the blanking ash hopper 81 is embedded in the entity thermal-insulation layer 82, the entity thermal-insulation layer 82 and the lower end of the high-temperature-resistant shell 83 are of an integrated structure, the upper end of the blanking ash hopper 81 is attached to the upper end of the slaked lime frame 89, the dedusting filter bag frame 84 and the dedusting filter bag 88 are of an integrated structure, the upper end of the dedusting filter bag frame 84 is welded with the lower end of the card support 85, the dedusting filter bag 88 is embedded in the high-temperature-resistant shell 83, the upper end of the card support 85 is attached to the lower, the lower end of the dust removal filter bag frame 84 is bonded with the upper end of a slaked lime frame 89, the slaked lime frame 89 is embedded in a high-temperature resistant shell 83, the right end of the secondary kiln 5 is connected with the left upper end of a first channel pipe 6, the right lower end of the first channel pipe 6 is embedded in the left lower end of a dust removal and ash removal mechanism 8, the upper end of an upper air outlet 87 is welded with the lower end of the deacidification tower 7, the right end of a second channel pipe 9 is connected with the left end of the high-temperature resistant shell 83, the right upper end of a waste heat recoverer 10 is connected with the lower end of a deslagging box 13 through a third channel pipe 12, the lower end of the deslagging box 13 is welded with the upper end of a support leg post 11, the sealing steel door 1 is made of stainless steel and has good hardness, and the first channel pipe 6 is made of aluminum.

The ash falling hopper 81 is a hopper-shaped furnace bottom structure formed by water-cooled walls at a certain inclination angle (generally 50-55 degrees) at the lower part of a furnace chamber of the pulverized coal fired boiler and mainly used for cooling and collecting ash and slag to discharge the ash and slag in a solid state, the chimney column 15 is a structure for providing ventilation for hot smoke or fume of a boiler, a furnace, a stove or a fireplace, and the chimney is generally vertical or nearly vertical as much as possible to ensure that gas flows smoothly and sucked air enters so-called chimney combustion or chimney effect.

Gas after burning when using flows inside entering into high temperature resistant casing 83 through first passageway pipe 6 inside, thereby carry out the cleaing away of lime particulate matter to flowing gas through internally mounted's lime hydrate frame 89, gas rises after again and is cooperated dust bag filter frame 84 by card support 85 lower extreme erection joint and carry out absorption recovery gathering to the dust of rising gas inside and clear away the processing after gathering, further carry out absorption treatment to remaining particulate matter by the filtration activated carbon board 86 of upper end again thereby ensure to reduce the material to the external world after discharging from last gas outlet 87, discharge collection processing through the inside embedding blanking ash bucket 81 of entity insulating layer 82 after the unnecessary dust particulate matter of inside falls at last.

The utility model solves the problem that the prior art has poor cleaning effect on burnt-off dust particles in the incinerator, causes pollution to the surrounding environment after long-term untreated emission, thereby reducing the surrounding air quality, and the utility model structurally leads the burned gas to flow into the high temperature resistant shell through the inside of the first channel pipe through the mutual combination of the components, thereby removing the lime particles from the flowing gas through the internally installed slaked lime frame, and then the dust removal filter bag frame connected with the lower end of the card support is matched with the dust removal filter bag to absorb, recycle and gather the dust in the rising gas after the gas rises, and then the filter activated carbon plate at the upper end is used for absorbing the residual particles to ensure that the materials to the outside are reduced after the residual particles are discharged from the upper gas outlet, and finally, after the redundant dust particles fall, the dust particles are discharged and collected through a dust discharging hopper embedded in the solid heat-insulating layer, so that the high-efficiency treatment of the incinerated residue dust is improved, and the pollution to the external environment after the discharge is avoided.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above, it will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, but that the invention may be embodied 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.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a refuse incineration boiler's deashing structure which characterized in that: the structure of the device comprises a sealed steel door (1), a burnout zone (2), a burner (3), an air inlet (4), a secondary combustion cellar (5), a first channel pipe (6), an acid removing tower (7), a dust removing and ash cleaning mechanism (8), a second channel pipe (9), a waste heat recoverer (10), a support leg column (11), a third channel pipe (12), a slag removing box (13), an induced draft fan (14) and a chimney column (15), wherein the inner side of the sealed steel door (1) is connected with the right side of the burner (3), the burnout zone (2) and the burner (3) are of an integrated structure, the upper end of the burnout zone (2) is connected with the lower end of the secondary combustion cellar (5), the right end of the air inlet (4) is welded with the left end of the secondary combustion cellar (5), the lower end of the acid removing tower (7) is connected with the upper end of the dust removing mechanism (8), the upper end of the acid removing tower (7) is welded with the left, the right lower end of the second channel pipe (9) is connected with the left lower end of the waste heat recoverer (10), the upper end of the induced draft fan (14) is connected with the lower end of the chimney column (15), and the lower end of the induced draft fan (14) is welded with the upper end of the deslagging box (13).

2. The ash removal structure of a waste incineration boiler according to claim 1, wherein: the dust removal and ash removal mechanism (8) is composed of a blanking ash hopper (81), an entity heat-insulating layer (82), a high-temperature-resistant shell (83), a dust removal filter bag frame (84), a pattern plate bracket (85), a filtration activated carbon plate (86), an upper air outlet (87), a dust removal filter bag (88) and a slaked lime frame (89), wherein the blanking ash hopper (81) is embedded in the entity heat-insulating layer (82), the entity heat-insulating layer (82) and the lower end of the high-temperature-resistant shell (83) are of an integrated structure, the upper end of the blanking ash hopper (81) is attached to the upper end of the slaked lime frame (89), the dust removal filter bag frame (84) and the dust removal filter bag (88) are of an integrated structure, the upper end of the dust removal filter bag frame (84) is welded to the lower end of the pattern plate bracket (85), the dust removal filter bag (88) is embedded in the high-temperature-resistant shell (83), the upper end of, the upper air outlet (87) and the upper end of the high-temperature-resistant shell (83) are of an integrated structure, the lower end of the dust removal filter bag frame (84) is bonded with the upper end of a slaked lime frame (89), and the slaked lime frame (89) is embedded in the high-temperature-resistant shell (83).

3. The ash removal structure of a waste incineration boiler according to claim 1, wherein: the right end of the secondary combustion cellar (5) is connected with the upper left end of the first channel pipe (6), and the lower right end of the first channel pipe (6) is embedded in the lower left end of the dust removing and ash cleaning mechanism (8).

4. The ash removal structure of a waste incineration boiler according to claim 2, wherein: the upper end of the upper gas outlet (87) is welded with the lower end of the acid removal tower (7), and the right end of the second channel pipe (9) is connected with the left end of the high-temperature resistant shell (83).

5. The ash removal structure of a waste incineration boiler according to claim 1, wherein: the upper right end of the waste heat recoverer (10) is connected with the lower end of a deslagging box (13) through a third channel pipe (12), and the lower end of the deslagging box (13) is welded with the upper end of a supporting foot column (11).