CN109364628A - A kind of flue gas pollutant minimum discharge system of coal-burning boiler - Google Patents
A kind of flue gas pollutant minimum discharge system of coal-burning boiler Download PDFInfo
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- CN109364628A CN109364628A CN201811521999.9A CN201811521999A CN109364628A CN 109364628 A CN109364628 A CN 109364628A CN 201811521999 A CN201811521999 A CN 201811521999A CN 109364628 A CN109364628 A CN 109364628A
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- Prior art keywords
- filter
- flue gas
- tower
- bag
- coal
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Links
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 31
- 239000003546 flue gas Substances 0.000 title claims abstract description 31
- 239000003344 environmental pollutant Substances 0.000 title claims abstract description 24
- 231100000719 pollutant Toxicity 0.000 title claims abstract description 24
- 230000003009 desulfurizing effect Effects 0.000 claims abstract description 31
- 239000000779 smoke Substances 0.000 claims abstract description 5
- 238000005507 spraying Methods 0.000 claims description 15
- 238000001914 filtration Methods 0.000 claims description 12
- 230000008676 import Effects 0.000 claims description 12
- 238000002347 injection Methods 0.000 claims description 10
- 239000007924 injection Substances 0.000 claims description 10
- 238000009434 installation Methods 0.000 claims description 10
- 238000011010 flushing procedure Methods 0.000 claims description 9
- 239000007921 spray Substances 0.000 claims description 9
- 239000007789 gas Substances 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 7
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 6
- 239000000945 filler Substances 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 3
- 238000009510 drug design Methods 0.000 abstract description 2
- 208000028659 discharge Diseases 0.000 description 26
- RAHZWNYVWXNFOC-UHFFFAOYSA-N Sulphur dioxide Chemical compound O=S=O RAHZWNYVWXNFOC-UHFFFAOYSA-N 0.000 description 8
- 238000006477 desulfuration reaction Methods 0.000 description 4
- 230000023556 desulfurization Effects 0.000 description 4
- 239000000428 dust Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000004744 fabric Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 239000007787 solid Substances 0.000 description 3
- 241001212038 Arcola Species 0.000 description 2
- PMZURENOXWZQFD-UHFFFAOYSA-L Sodium Sulfate Chemical compound [Na+].[Na+].[O-]S([O-])(=O)=O PMZURENOXWZQFD-UHFFFAOYSA-L 0.000 description 2
- 210000001367 artery Anatomy 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 239000003245 coal Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 210000003462 vein Anatomy 0.000 description 2
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical class [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 239000005864 Sulphur Substances 0.000 description 1
- 239000000809 air pollutant Substances 0.000 description 1
- 231100001243 air pollutant Toxicity 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000003500 flue dust Substances 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- DOTMOQHOJINYBL-UHFFFAOYSA-N molecular nitrogen;molecular oxygen Chemical compound N#N.O=O DOTMOQHOJINYBL-UHFFFAOYSA-N 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 239000013618 particulate matter Substances 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
- B01D46/04—Cleaning filters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/02—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material
- B01D46/06—Particle separators, e.g. dust precipitators, having hollow filters made of flexible material with means keeping the working surfaces flat
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/56—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition
- B01D46/62—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours with multiple filtering elements, characterised by their mutual disposition connected in series
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
- B01D53/501—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
- B01D53/502—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound characterised by a specific solution or suspension
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
- B01D53/501—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
- B01D53/504—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound characterised by a specific device
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
- B01D53/507—Sulfur oxides by treating the gases with other liquids
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/54—Nitrogen compounds
- B01D53/56—Nitrogen oxides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/75—Multi-step processes
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/77—Liquid phase processes
- B01D53/78—Liquid phase processes with gas-liquid contact
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
Abstract
The invention discloses a kind of flue gas pollutant minimum discharge systems of coal-burning boiler, including high-efficiency pulse bag filter, desulfurizing tower, denitrating tower, removable box accurate filter, chimney, boiler smoke passes through pipeline and the high-efficiency pulse bag filter, high-efficiency pulse bag filter is connect by pipeline with desulfurizing tower, blower is equipped between high-efficiency pulse bag filter, desulfurizing tower, desulfurizing tower, denitrating tower, removable box accurate filter, chimney are sequentially connected, and are equipped with blower between each equipment.The present invention has rational design；Flue gas can be carried out by this system to stablize processing, it is applied widely, it is easy to operate.
Description
Technical field
The present invention relates to a kind of flue gas pollutant minimum discharge systems of coal-burning boiler.
Background technique
It is atmosphere dirt containing pollutants such as a large amount of dust, sulfur dioxide, nitrogen oxides in the flue gas of coal-burning boiler discharge
Contaminate one of the primary discharge source of object.In recent years, people's lives have seriously been perplexed in atmosphere pollution, for this purpose, country strengthens to work
The exhausting control dynamics of industry emission, the discharge standard of execution is also increasingly severeer, and flue gas minimum discharge standard comes into effect.
" Shandong Province's regionality atmosphere pollution comprehensive discharge standard " (DB37/2376-2013) combustion requires coal unit Air Pollutants
The third period should be respectively no higher than 10,50,200 milligrams/cubic metre again for flue dust, sulfur dioxide, discharged nitrous oxides concentration.It compares
In large capacity, high parameter boiler, the current middle and small burn coal boiler monomer capacity in China is small, 8 ton/hours average；Quantity is big, wherein
The quantity of 10 ton/hours or less coal-fired arcolas accounts for the 2/3 of sum；Pollutant discharge amount is big, wide, and most of arcolas remove
Dirt, desulfurization and denitrification apparatus are not perfect, cause the sulfur dioxide of present boiler and dust emission generally not up to standard.
Currently, most boilers are handled using desulfurizing tower spray water film desulphurizing and dust-removing integral.This method can achieve preferably
Desulfurization and dust-laying effect, but the sodium sulphate generated after desulfurization is mixed with volume of smoke, is unfavorable for post-processing, is easy to produce two
Secondary pollution, and the micronic dusts such as PM2.5 are easy to leakage, so that dust removing effects are unstable, are unable to satisfy the requirement of minimum discharge.
Common medium small boiler flue gas purification system is difficult to meet flue gas minimum discharge standard, is badly in need of in the market a kind of suitable
For 10 ton/hours or less coal-burning boilers, technically simple, small investment, operating cost is low, and treatment effect is stable and can reach ultralow
Fume treatment new system, the new technology of discharge standard.
Summary of the invention
The purpose of the present invention is to provide a kind of flue gas pollutant minimum discharge systems of coal-burning boiler, to solve above-mentioned skill
Art problem.
To achieve the above object the invention adopts the following technical scheme:
A kind of flue gas pollutant minimum discharge system of coal-burning boiler, including high-efficiency pulse bag filter, desulfurizing tower, denitration
Tower, removable box accurate filter, chimney, boiler smoke pass through pipeline and the high-efficiency pulse bag filter, efficient arteries and veins
It rushes bag filter to connect by pipeline with desulfurizing tower, blower, desulfurization is equipped between high-efficiency pulse bag filter, desulfurizing tower
Tower, denitrating tower, removable box accurate filter, chimney are sequentially connected, and are equipped with blower between each equipment.
Preferably, the high-efficiency pulse bag filter include bracket, dedusting filtering bag, filter bag frame, injection tube, ash bucket,
Electromagnetic impulse valve, high-efficiency pulse bag filter top are designed for internal box, and the top of cabinet is equipped with cover board, and air inlet is located at height
The bottom of pulsed jet cloth filter is imitated, the filter bag frame is mounted in cabinet by dedusting card, and dedusting filtering bag is mounted on filter
Bag frame on, injection tube is located at the top of dedusting filtering bag, and has opening at corresponding dedusting filtering bag, the free end of injection tube and
Electromagnetic impulse valve is threadedly coupled, and electromagnetic impulse valve is controlled by control cabinet, gas bag installation casing side, the High-efficiency pulse cloth
Bag dust collector cabinet is fixed on bracket, and the bottom of cabinet is open design, and the bottom of cabinet is fixedly connected with ash bucket, ash bucket
Bottom is equipped with ash discharge plate.
Preferably, the desulfurizing tower is identical as the structure of denitrating tower, desulfurizing tower include tower body, import, outlet, demisting layer,
Spraying layer, absorbed layer, the import are connected to spraying layer, and the bottom of spraying layer is equipped with filler, and the top of spraying layer is equipped with spray
Head, lye are sprayed by spray head, and spraying layer is connected to distributor chamber, and scattering tube is connected to distributor chamber, and scattering tube extends downward into
In absorbed layer, lye being equipped in absorbed layer, and blender is installed in absorbed layer, one end of gas collecting tube is located at the top of absorbed layer,
The other end extends upwardly at demisting layer, and the demisting layer includes demister and flushing pipe, and demister is fixed on by fixed link
The top of desulfurizing tower, flushing pipe are located at demister bottom, and flushing pipe is carried out the conveying of water by water pump, and the top and outlet of tower body connect
Logical, the bottom of the tower body is conical design.
Preferably, the import is 7 ° diagonally downward designs, and entrance is equipped with flue gas even distribution plate, the outlet of desulfurizing tower with
Denitrating tower connection.
Preferably, the removable box accurate filter includes outer case and internal box, and outer case is seal glass room
Design, multiple internal box installations in the outer case, are equipped with chamber door, outer case is connect through blower with chimney, internal box at outer case
It is equipped between outer case there are the space that personnel pass through, the internal box includes pedestal, fixing piece, installing frame, and internal box is solid
It being scheduled on pedestal, the side of internal box is equipped with the fixing piece of screw installation, internal box is mounted in outer case using fixing piece,
Installation is there are two installing frame in the internal box, is fixed with medium effeciency filter on the installing frame of front, solid on the installing frame at rear portion
Surely there is high efficiency particulate air filter.
Preferably, the medium effeciency filter and high efficiency particulate air filter can be replaced.
Compared with prior art, the invention has the following advantages that the present invention has rational design；High-efficiency pulse bag filter,
Desulfurizing tower, denitrating tower, removable box accurate filter design efficient process flue gas in particulate matter, sulfur dioxide, nitrogen oxygen
The multiple pollutants such as compound；Each equipment is connected using blower to change discharge amount according to the amount of flue gas；Removable box essence
The filter of granular size replacement different technologies index or specification requirement (air permeability, average pore size etc.) that close filter can need to filter out
Paper, it is easy to operate.
Detailed description of the invention
Fig. 1 is the flue gas pollutant minimum discharge system schematic of coal-burning boiler of the present invention.
Fig. 2 is the high-efficiency pulse bag filter signal of the flue gas pollutant minimum discharge system of coal-burning boiler of the present invention
Figure.
Fig. 3 is the desulfurizing tower cross-sectional view of the flue gas pollutant minimum discharge system of coal-burning boiler of the present invention.
Fig. 4 is the desulfurizing tower schematic diagram of the flue gas pollutant minimum discharge system of coal-burning boiler of the present invention.
Fig. 5 is the demister schematic diagram of the flue gas pollutant minimum discharge system of coal-burning boiler of the present invention.
Fig. 6 is the removable box accurate filter signal of the flue gas pollutant minimum discharge system of coal-burning boiler of the present invention
Figure.
Fig. 7 is the interior of the removable box accurate filter of the flue gas pollutant minimum discharge system of coal-burning boiler of the present invention
Cabinet schematic diagram.
Fig. 8 is the interior of the removable box accurate filter of the flue gas pollutant minimum discharge system of coal-burning boiler of the present invention
Cabinet cross-sectional view.
In figure: 1, high-efficiency pulse bag filter, 2, desulfurizing tower, 3, denitrating tower, 4, removable box accurate filter, 5,
Chimney, 6, bracket, 7, dedusting filtering bag, 8, injection tube, 9, electromagnetic impulse valve, 10, gas bag, 11, filter bag frame, 12, air inlet,
13, ash bucket, 14, ash discharge plate, 15, internal box, 16, pedestal, 17, fixing piece, 18, high efficiency particulate air filter, 19, medium effeciency filter, 20,
Installing frame, 21, tower body, 22, outlet, 23, absorbed layer, 24, import, 25, spraying layer, 26, demisting layer, 27, demister, 28, punching
Wash pipe, 29, scattering tube, 30, distributor chamber, 31, gas collecting tube, 32, spray tube, 33, outer case.
Specific embodiment
The present invention is further elaborated in the following with reference to the drawings and specific embodiments.
As shown in figures 1-8, the flue gas pollutant minimum discharge system of a kind of coal-burning boiler, including high-efficiency pulse cloth bag dedusting
Device 1, desulfurizing tower 2, denitrating tower 3, removable box accurate filter 4, chimney 5, boiler smoke pass through pipeline and the efficient arteries and veins
Bag filter 1 is rushed, high-efficiency pulse bag filter 1 is connect by pipeline with desulfurizing tower 2, and high-efficiency pulse bag filter 1 takes off
Blower is equipped between sulphur tower 2, desulfurizing tower 2, denitrating tower 3, removable box accurate filter 4, chimney 5 are sequentially connected, each equipment
Between be equipped with blower
High-efficiency pulse bag filter 1 includes bracket 6, dedusting filtering bag 7, filter bag frame 11, injection tube 8, ash bucket 13, electromagnetic pulse
Valve 9,1 top of high-efficiency pulse bag filter are cabinet design, and the top of cabinet is equipped with cover board, and air inlet 12 is located at high-efficiency pulse
The bottom of bag filter 1, the filter bag frame 11 are mounted in cabinet by dedusting card, and dedusting filtering bag 7 is mounted on filter bag
On frame 11, injection tube 8 is located at the top of dedusting filtering bag 7, and has opening at corresponding dedusting filtering bag 7, the freedom of injection tube 8
End is threadedly coupled with electromagnetic impulse valve 9, and electromagnetic impulse valve 9 is controlled by control cabinet, 10 installation casing side of gas bag, the height
It imitates 1 internal box of pulsed jet cloth filter to fix on the frame 6, the bottom of cabinet is open design, the bottom of cabinet and ash bucket 13
It is fixedly connected, the bottom of ash bucket 13 is equipped with ash discharge plate 14
Desulfurizing tower 2 is identical as the structure of denitrating tower 3, and desulfurizing tower 2 includes tower body 21, import 24, outlet 22, demisting layer 26, spray
Layer 25, absorbed layer 23, the import 24 are connected to spraying layer 25, and the bottom of spraying layer 25 is equipped with filler, the top of spraying layer 25
Portion is equipped with spray head 32, and lye is sprayed by spray head 32, and spraying layer 25 is connected to distributor chamber 30, and scattering tube 29 and distributor chamber 30 connect
It is logical, and scattering tube 29 extends downward into absorbed layer 23, lye is equipped in absorbed layer 23, and stirring is equipped in absorbed layer 23
Device, one end of gas collecting tube 31 are located at 23 top of absorbed layer, and the other end extends upwardly at demisting layer 26, and the demisting layer 26 includes
Demister 27 and flushing pipe 28, demister 27 are fixed on the top of desulfurizing tower 2 by fixed link, and flushing pipe 28 is located at demister 27
Bottom, flushing pipe 28 are carried out the conveying of water by water pump, and the top of tower body 21 is connected to outlet 22, and the bottom of the tower body 21 is cone
Shape design, import 24 design for 7 ° diagonally downward, are equipped with flue gas even distribution plate, the outlet 22 and denitration of desulfurizing tower 2 at import 24
Tower 3 is connected to
Removable box accurate filter 4 includes outer case 33 and internal box 15, and outer case 33 is the design of seal glass room, multiple
Internal box 15 is mounted in outer case 33, and chamber door is equipped at outer case 33, and outer case 33 is connect through blower with chimney 5, internal box
It is equipped between 15 and outer case 33 there are the space that personnel pass through, the internal box 15 includes pedestal 16, fixing piece 17, installing frame
20, internal box 15 is fixed on pedestal 16, and the side of internal box 15 is equipped with the fixing piece 17 of screw installation, will using fixing piece 17
Internal box 15 is mounted in outer case 33, installing frame 20 there are two installations in the internal box 15, solid on the installing frame 20 of front
Surely there is medium effeciency filter 19, high efficiency particulate air filter 18, medium effeciency filter 19 and high efficiency particulate air filter are fixed on the installing frame 20 at rear portion
18 can be replaced.
The above is present pre-ferred embodiments, for the ordinary skill in the art, according to the present invention
Introduction, in the case where not departing from the principle of the present invention and spirit, changes, modifications, replacement and change that embodiment is carried out
Type is still fallen within protection scope of the present invention.
Claims (6)
1. a kind of flue gas pollutant minimum discharge system of coal-burning boiler, including high-efficiency pulse bag filter (1), desulfurizing tower
(2), denitrating tower (3), removable box accurate filter (4), chimney (5), which is characterized in that boiler smoke passes through pipeline and institute
It states high-efficiency pulse bag filter (1), high-efficiency pulse bag filter (1) is connect by pipeline with desulfurizing tower (2), high-efficiency pulse
Blower, desulfurizing tower (2), denitrating tower (3), removable box accurate filter are equipped between bag filter (1), desulfurizing tower (2)
(4), chimney (5) is sequentially connected, and is equipped with blower between each equipment.
2. a kind of flue gas pollutant minimum discharge system of coal-burning boiler according to claim 1, which is characterized in that described
High-efficiency pulse bag filter (1) include bracket (6), dedusting filtering bag (7), filter bag frame (11), injection tube (8), ash bucket (13),
Electromagnetic impulse valve (9), high-efficiency pulse bag filter (1) top are cabinet design, and the top of cabinet is equipped with cover board, air inlet
(12) it is located at the bottom of high-efficiency pulse bag filter (1), the filter bag frame (11) is mounted in cabinet by dedusting card,
Dedusting filtering bag (7) is mounted on filter bag frame (11), and injection tube (8) is located at the top of dedusting filtering bag (7), and corresponding dedusting is filtered
There is opening at bag (7), the free end of injection tube (8) is threadedly coupled with electromagnetic impulse valve (9), and electromagnetic impulse valve (9) is by controlling
Cabinet is controlled, and gas bag (10) installs internal box side, and high-efficiency pulse bag filter (1) cabinet is fixed on bracket (6)
On, the bottom of cabinet is open design, and the bottom of cabinet is fixedly connected with ash bucket (13), and the bottom of ash bucket (13) is equipped with ash discharge plate
(14).
3. a kind of flue gas pollutant minimum discharge system of coal-burning boiler according to claim 1, which is characterized in that described
Desulfurizing tower (2) is identical as the structure of denitrating tower (3), and desulfurizing tower (2) includes tower body (21), import (24), outlet (22), demisting layer
(26), spraying layer (25), absorbed layer (23), the import (24) are connected to spraying layer (25), and the bottom of spraying layer (25) is laid with
There is filler, the top of spraying layer (25) is equipped with spray head (32), and lye is sprayed by spray head (32), spraying layer (25) and distributor chamber
(30) it is connected to, scattering tube (29) is connected to distributor chamber (30), and scattering tube (29) extends downward into absorbed layer (23), absorbed layer
(23) it is equipped with lye in, and blender is installed in absorbed layer (23), one end of gas collecting tube (31) is located at the top of absorbed layer (23),
The other end extends upwardly at demisting layer (26), and the demisting layer (26) includes demister (27) and flushing pipe (28), demister
(27) be fixed on the top of desulfurizing tower (2) by fixed link, flushing pipe (28) is located at demister (27) bottom, flushing pipe (28) by
Water pump carries out the conveying of water, and the top of tower body (21) is connected to outlet (22), and the bottom of the tower body (21) is conical design.
4. a kind of flue gas pollutant minimum discharge system of coal-burning boiler according to claim 3, which is characterized in that described
Import (24) designs for 7 ° diagonally downward, is equipped with flue gas even distribution plate, the outlet (22) and denitration of desulfurizing tower (2) at import (24)
Tower (3) connection.
5. a kind of flue gas pollutant minimum discharge system of coal-burning boiler according to claim 1, which is characterized in that described
Removable box accurate filter (4) includes outer case (33) and internal box (15), and outer case (33) is the design of seal glass room,
Multiple internal box (15) are mounted in outer case (33), chamber door are equipped at outer case (33), outer case (33) is through blower and chimney
(5) it connects, equipped with there are the spaces that personnel pass through between internal box (15) and outer case (33), the internal box (15) includes bottom
Seat (16), fixing piece (17), installing frame (20), internal box (15) are fixed on pedestal (16), and the side of internal box (15) is equipped with
Internal box (15), is mounted on outer case (33), the internal box by the fixing piece (17) of screw installation using fixing piece (17)
(15) in there are two installations installing frame (20), medium effeciency filter (19), the installation at rear portion are fixed on the installing frame (20) of front
High efficiency particulate air filter (18) are fixed on frame (20).
6. a kind of flue gas pollutant minimum discharge system of coal-burning boiler according to claim 1, which is characterized in that described
Medium effeciency filter (19) and high efficiency particulate air filter (18) can be replaced.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811521999.9A CN109364628A (en) | 2018-12-13 | 2018-12-13 | A kind of flue gas pollutant minimum discharge system of coal-burning boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| CN109833682A (en) * | 2019-04-19 | 2019-06-04 | 汤辉 | A kind of desulfurization denitration integrative smoke purifying device and its application method |
| CN110081436A (en) * | 2019-05-28 | 2019-08-02 | 江苏冰溶重型机械有限公司 | A kind of dual firing chamber's smoke prevention and dust control boiler |
| CN114849358A (en) * | 2022-03-22 | 2022-08-05 | 江苏润众环保材料有限公司 | Automatic dust discharging pulse dust collector based on PTFE filter bag |
| CN117398773A (en) * | 2023-12-14 | 2024-01-16 | 江苏奥利思特环保科技有限公司 | Industrial waste gas dust removal desulfurization device |
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