CN108981153A - Combustion boiler for efficiently treating tail gas dust - Google Patents
Combustion boiler for efficiently treating tail gas dust Download PDFInfo
- Publication number
- CN108981153A CN108981153A CN201810993293.6A CN201810993293A CN108981153A CN 108981153 A CN108981153 A CN 108981153A CN 201810993293 A CN201810993293 A CN 201810993293A CN 108981153 A CN108981153 A CN 108981153A
- Authority
- CN
- China
- Prior art keywords
- box
- boiler
- tail gas
- fixedly installed
- treatment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 239000000428 dust Substances 0.000 title claims abstract description 25
- 238000002485 combustion reaction Methods 0.000 title abstract 2
- 238000001179 sorption measurement Methods 0.000 claims abstract description 21
- 238000004140 cleaning Methods 0.000 claims abstract description 11
- 239000000779 smoke Substances 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 26
- 238000010438 heat treatment Methods 0.000 claims description 23
- 238000000034 method Methods 0.000 claims description 22
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract description 8
- 239000000126 substance Substances 0.000 abstract description 4
- 238000009434 installation Methods 0.000 abstract 1
- 239000007789 gas Substances 0.000 description 22
- 238000010586 diagram Methods 0.000 description 3
- 238000001914 filtration Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000009776 industrial production Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000000567 combustion gas Substances 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 230000003137 locomotive effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005065 mining Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H1/00—Water heaters, e.g. boilers, continuous-flow heaters or water-storage heaters
- F24H1/22—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating
- F24H1/40—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water tube or tubes
- F24H1/41—Water heaters other than continuous-flow or water-storage heaters, e.g. water heaters for central heating with water tube or tubes in serpentine form
-
- 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
- B01D46/10—Particle separators, e.g. dust precipitators, using filter plates, sheets or pads having plane surfaces
-
- 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
- B01D46/66—Regeneration of the filtering material or filter elements inside the filter
- B01D46/68—Regeneration of the filtering material or filter elements inside the filter by means acting on the cake side involving movement with regard to the filter elements
- B01D46/681—Regeneration of the filtering material or filter elements inside the filter by means acting on the cake side involving movement with regard to the filter elements by scrapers, brushes or the like
-
- 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/02—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material
- F23J15/022—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow
- F23J15/025—Arrangements of devices for treating smoke or fumes of purifiers, e.g. for removing noxious material for removing solid particulate material from the gasflow using filters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/0005—Details for water heaters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/16—Arrangements for water drainage
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J2219/00—Treatment devices
- F23J2219/30—Sorption devices using carbon, e.g. coke
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Combustion & Propulsion (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chimneys And Flues (AREA)
Abstract
The invention discloses a combustion boiler for efficiently treating tail gas dust, which comprises a boiler main body, wherein the bottom of the boiler main body is fixedly communicated with a smoke outlet pipe, the bottom of the boiler main body is fixedly provided with two support columns, a bearing plate is fixedly arranged between the two support columns, the top of the bearing plate is fixedly provided with a treatment box and an adsorption box, one end of the smoke outlet pipe, far away from the boiler main body, penetrates through the treatment box and extends into the treatment box, a filter screen is fixedly arranged between the inner walls of the two sides of the treatment box, and an installation frame is fixedly arranged above one side, far away from the smoke outlet pipe, of the treatment box. According to the invention, the electric push rod drives the connecting rod to move, so that the cleaning brush cleans dust on the surface of the filter screen into the collection box, the filtered tail gas is introduced into the adsorption box, and harmful substances in the tail gas are adsorbed by the activated carbon and then discharged, thereby improving the practicability of the device.
Description
Technical field
The present invention relates to technical field more particularly to a kind of burning boilers of efficient process tail gas dust.
Background technique
Boiler is a kind of energy conversion, and the energy inputted to boiler has chemical energy, electric energy in fuel, boiler output
Steam, high-temperature water or organic heat carrier with certain thermal energy.The original meaning of pot refers to that the water container heated on fire, furnace refer to burning
The place of fuel, boiler include pot and furnace two large divisions.The hot water or steam generated in boiler can directly be industrial production and people
The people's livelihood is living to provide required thermal energy, mechanical energy can also be converted to by Steam Power Equipment, or again turn mechanical energy by generator
It is changed to electric energy.The boiler for providing hot water is known as hot-water boiler, is mainly used for living, also there is a small amount of application in industrial production.It generates
The boiler of steam is known as steam boiler, is often simply called boiler, is chiefly used in thermal power station, ship, locomotive and industrial and mining enterprises.
The burning boiler that workshop uses at present will clear up the filter screen of vent gas treatment after work, then
It needs to dismantle it, then filter screen is cleared up, be easy to cause the damage of equipment, therefore, need a kind of efficient process
The burning boiler of tail gas dust solves the above problems.
Summary of the invention
The purpose of the present invention is to solve disadvantages existing in the prior art, and a kind of efficient process tail gas ash proposed
The burning boiler of dirt.
To achieve the goals above, present invention employs following technical solutions:
A kind of burning boiler of efficient process tail gas dust, including boiler body, the bottom of the boiler body is fixed to be connected
It is connected with pipe, the bottom of the boiler body is fixedly installed with support column, and the quantity of the support column is two, described in two
It is fixedly installed with bearing plate between support column, treatment box and adsorption box, the smoke are fixedly installed at the top of the bearing plate
One end of pipe keep away from boiler main body runs through treatment box and extends to the inside for the treatment of box, solid between the inner wall of the treatment box two sides
Dingan County is equipped with filter screen, and the treatment box is far from being fixedly installed with mounting rack, the bottom of the mounting rack above pipe side
Portion is fixedly connected with bracket, and the quantity of the bracket is two, and the bottom of two brackets is fixedly installed with electric pushrod, institute
The one end of electric pushrod far from bracket is stated through treatment box and extends to the inside for the treatment of box, the electric pushrod is located at treatment box
One end of inside is fixedly installed with connecting rod, and the bottom of the connecting rod is fixedly installed with cleaning brush, the bottom of the cleaning brush
It is in contact at the top of filter screen, the treatment box is communicated with connecting tube far from the side fixation of pipe, the connecting tube
The other end runs through adsorption box and extends to the inside of adsorption box, and the adsorption box is communicated with smoke evacuation far from the side fixation of connecting tube
Pipe.
Preferably, the inside of the boiler body is fixedly installed with heating duct, and the top of the heating duct is fixed to be connected
It is connected with heating branch pipe.
Preferably, the inside of the boiler body offers inlet channel, and the inlet channel is located at heating branch pipe and adds
Between heat pipe.
Preferably, water tank is fixedly installed between the inner wall of the boiler body two sides, the water tank is located at heating
The lower section of conduit.
Preferably, the bottom of the water tank is fixed is communicated with drainpipe, and boiler body is run through in the bottom end of the drainpipe
And extend to the outside of boiler body.
Preferably, the two sides of the treatment box are fixedly installed with collecting box, and the inside of the treatment box two sides is fixed
Be communicated with logical ash pipe, one end that two logical ash pipes are located remotely from each other be connected to the fixation of the inside of collecting box, and logical ash pipe and
Filter screen is located at same level.
Preferably, the surface fixing sleeve of the collecting box is connected to cage plate, the equal screw thread socket in the top and bottom end of the cage plate
There is threaded rod, and the sidewall thread of threaded rod and treatment box connects.
The invention has the benefit that
1. the burning boiler of the efficient process tail gas dust, by being provided with treatment box and adsorption box, electric pushrod is driven
Connecting rod movement, makes cleaning brush that the dust for filtering net surface to be swept into the inside of collecting box, filtered tail gas is passed into suction
Inside attached case, falls the harmful substance in tail gas by activated carbon adsorption and discharge again, improve the practicability of the device.
2. the burning boiler of the efficient process tail gas dust is added by being provided with heating branch pipe since inlet channel is located at
Between hot leg pipe and heating duct, the heat that can be generated to boiler is fully absorbed, and is improved resource utilization.
3. the burning boiler of the efficient process tail gas dust, by being provided with water tank, since water tank two sides are to incline
Biassed fabric is fallen directly on inside water tank when the condensed water in boiler is fallen, then is discharged in boiler by drainpipe, and pot is avoided
Furnace interior has the phenomenon that ponding.
Detailed description of the invention
Fig. 1 is a kind of vent gas treatment structural schematic diagram of the burning boiler of efficient process tail gas dust proposed by the present invention;
Fig. 2 is to put at A in a kind of vent gas treatment structure of the burning boiler of efficient process tail gas dust proposed by the present invention
Big structure schematic diagram;
Fig. 3 is a kind of positive structure diagram of the burning boiler of efficient process tail gas dust proposed by the present invention;
Fig. 4 is a kind of schematic cross-sectional view of the burning boiler of efficient process tail gas dust proposed by the present invention.
In figure: 1 boiler body, 2 inlet channels, 3 support columns, 4 pipes, 5 heating ducts, 6 water tanks, 7 drainpipes, 8
Heat branch pipe, 9 bearing plates, 10 treatment boxes, 11 connecting rods, 12 mounting racks, 13 brackets, 14 electric pushrods, 15 adsorption boxes, 16 smoke evacuations
Pipe, 17 connecting tubes, 18 cleaning brush, 19 filter screens, 20 collecting boxs, 21 threaded rods, 22 cage plates, 23 logical ash pipes.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.
Referring to Fig.1-4, a kind of burning boiler of efficient process tail gas dust, including boiler body 1, the bottom of boiler body 1
Portion is fixed to be communicated with pipe 4, and the bottom of boiler body 1 is fixedly installed with support column 3, and the quantity of support column 3 is two, two
Bearing plate 9 is fixedly installed between support column 3, the top of bearing plate 9 is fixedly installed with treatment box 10 and adsorption box 15, pipe
One end of 4 keep away from boiler main bodys 1 runs through treatment box 10 and extends to the inside for the treatment of box 10, between the inner wall of 10 two sides for the treatment of box
Be fixedly installed with filter screen 19, treatment box 10 far from being fixedly installed with mounting rack 12 above 4 side of pipe, mounting rack 12
Bottom is fixedly connected with bracket 13, and the quantity of bracket 13 is two, and the bottom of two brackets 13 is fixedly installed with electric pushrod 14,
Electric pushrod 14 runs through treatment box 10 far from one end of bracket 13 and extends to the inside for the treatment of box 10, and electric pushrod 14 is located at place
One end of 10 inside of reason case is fixedly installed with connecting rod 11, and the bottom of connecting rod 11 is fixedly installed with cleaning brush 18, cleaning brush 18
Bottom be in contact with the top of filter screen 19, treatment box 10 far from pipe 4 side fixation is communicated with connecting tube 17, connect
The other end of pipe 17 runs through adsorption box 15 and extends to the inside of adsorption box 15, and adsorption box 15 is fixed far from the side of connecting tube 17
It is communicated with smoke exhaust pipe 16, electric pushrod 11 drives connecting rod 11 to move, and cleans cleaning brush 18 by the dust on 19 surface of filter screen
To the inside of collecting box 20, filtered tail gas is passed into inside adsorption box 15, and the nocuousness in tail gas is fallen by activated carbon adsorption
Substance discharges again.
In the present invention, the inside of boiler body 1 is fixedly installed with heating duct 5, and the top fixation of heating duct 5 is communicated with
Heat branch pipe 8, the inside of boiler body 1 offers inlet channel 2, inlet channel 2 be located at heating branch pipe 8 and heating duct 5 it
Between, since inlet channel 2 is located between heating branch pipe 8 and heating duct 5, the heat that can be generated to boiler is fully absorbed, pot
Water tank 6 is fixedly installed between the inner wall of 1 two sides of furnace main body, water tank 6 is located at the lower section of heating duct 5, the bottom of water tank 6
Portion is fixed to be communicated with drainpipe 7, and the bottom end of drainpipe 7 runs through boiler body 1 and extends to the outside of boiler body 1, due to product
6 two sides of water tank are incline structure, are fallen directly on inside water tank 6 when the condensed water in boiler is fallen, then pass through 7 row of drainpipe
Out in boiler, the two sides for the treatment of box 10 are fixedly installed with collecting box 20, and the fixation of the inside of 10 two sides for the treatment of box is communicated with logical
Ash pipe 23, one end that two logical ash pipes 23 are located remotely from each other are connected to the fixation of the inside of collecting box 20, and logical ash pipe 23 and filtering
Net 19 is located at same level, and the surface fixing sleeve of collecting box 20 is connected to cage plate 22, the equal thread bush in top and bottom end of cage plate 22
It is connected to threaded rod 21, and threaded rod 21 is connect with the sidewall thread for the treatment of box 10.
Working principle: in use, being passed through combustion gas to the inside of boiler body 1 by inlet channel 2, made by firing device
Fuel gas buring heat production injects water to the inside of heating duct 5, has part water flow and flows through the heating absorption heat of branch pipe 8, beats simultaneously
Electric pushrod 14 is opened, electric pushrod 14 drives connecting rod 11 to move, is swept into cleaning brush 18 by the dust on 19 surface of filter screen
The inside of collecting box 20, filtered tail gas are passed into inside adsorption box 15, and the nuisance in tail gas is fallen by activated carbon adsorption
Matter is discharged again, cooling to boiler body 1 after use, and the condensed water in boiler, which is fallen, to be fallen directly on inside water tank 6, then
It is discharged in boiler by drainpipe 7, avoids boiler internal and have ponding.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (7)
1. a kind of burning boiler of efficient process tail gas dust, including boiler body (1), which is characterized in that the boiler body
(1) bottom fixation is communicated with pipe (4), and the bottom of the boiler body (1) is fixedly installed with support column (3), the branch
The quantity of dagger (3) is two, is fixedly installed with bearing plate (9) between two support columns (3), the bearing plate (9)
Top is fixedly installed with treatment box (10) and adsorption box (15), one end through part of pipe (4) the keep away from boiler main body (1)
It manages case (10) and extends to the inside for the treatment of box (10), be fixedly installed with filter screen between the inner wall for the treatment of box (10) two sides
(19), it is fixedly installed with mounting rack (12) above separate pipe (4) side of the treatment box (10), the mounting rack (12)
Bottom be fixedly connected with bracket (13), the quantity of the bracket (13) is two, and the bottom of two brackets (13) is fixed
It is equipped with electric pushrod (14), the one end of the electric pushrod (14) far from bracket (13) is through treatment box (10) and extends to place
The inside of case (10) is managed, the electric pushrod (14) is located at one end on the inside for the treatment of box (10) and is fixedly installed with connecting rod (11),
The bottom of the connecting rod (11) is fixedly installed with cleaning brush (18), the bottom of the cleaning brush (18) and the top of filter screen (19)
Portion is in contact, and the treatment box (10) is communicated with connecting tube (17) far from the side fixation of pipe (4), the connecting tube (17)
The other end through adsorption box (15) and extend to the insides of adsorption box (15), the adsorption box (15) is far from connecting tube (17)
Side fixation is communicated with smoke exhaust pipe (16).
2. a kind of burning boiler of efficient process tail gas dust according to claim 1, which is characterized in that the boiler master
The inside of body (1) is fixedly installed with heating duct (5), and the top of the heating duct (5) is fixed to be communicated with heating branch pipe (8).
3. a kind of burning boiler of efficient process tail gas dust according to claim 1, which is characterized in that the boiler master
The inside of body (1) offers inlet channel (2), and the inlet channel (2) is located between heating branch pipe (8) and heating duct (5).
4. a kind of burning boiler of efficient process tail gas dust according to claim 1, which is characterized in that the boiler master
It is fixedly installed with water tank (6) between the inner wall of body (1) two sides, the water tank (6) is located at the lower section of heating duct (5).
5. a kind of burning boiler of efficient process tail gas dust according to claim 4, which is characterized in that the water tank
(6) bottom fixation is communicated with drainpipe (7), and the bottom end of the drainpipe (7) through boiler body (1) and extends to boiler master
The outside of body (1).
6. a kind of burning boiler of efficient process tail gas dust according to claim 1, which is characterized in that the treatment box
(10) two sides are fixedly installed with collecting box (20), and the fixation of the inside for the treatment of box (10) two sides is communicated with logical ash pipe
(23), one end that two logical ash pipes (23) are located remotely from each other is connected to the fixation of the inside of collecting box (20), and logical ash pipe
(23) it is located at same level with filter screen (19).
7. a kind of burning boiler of efficient process tail gas dust according to claim 6, which is characterized in that the collecting box
(20) surface fixing sleeve is connected to cage plate (22), and the equal screw thread in top and bottom end of the cage plate (22) is socketed with threaded rod (21),
And threaded rod (21) is connect with the sidewall thread for the treatment of box (10).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201810993293.6A CN108981153A (en) | 2018-08-29 | 2018-08-29 | Combustion boiler for efficiently treating tail gas dust |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201810993293.6A CN108981153A (en) | 2018-08-29 | 2018-08-29 | Combustion boiler for efficiently treating tail gas dust |
Publications (1)
Publication Number | Publication Date |
---|---|
CN108981153A true CN108981153A (en) | 2018-12-11 |
Family
ID=64547216
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN201810993293.6A Withdrawn CN108981153A (en) | 2018-08-29 | 2018-08-29 | Combustion boiler for efficiently treating tail gas dust |
Country Status (1)
Country | Link |
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CN (1) | CN108981153A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112524953A (en) * | 2020-11-12 | 2021-03-19 | 江苏沙钢集团有限公司 | Graded heat accumulating type high-utilization-rate heating furnace and heating method |
CN113069850A (en) * | 2021-03-05 | 2021-07-06 | 陈红梅 | Chemical raw material combustion tail gas treatment device |
CN113599964A (en) * | 2021-10-09 | 2021-11-05 | 东营昱辰技术有限公司 | Be used for petrochemical to contain discarded object and burn clearance flue gas treatment device |
-
2018
- 2018-08-29 CN CN201810993293.6A patent/CN108981153A/en not_active Withdrawn
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112524953A (en) * | 2020-11-12 | 2021-03-19 | 江苏沙钢集团有限公司 | Graded heat accumulating type high-utilization-rate heating furnace and heating method |
CN113069850A (en) * | 2021-03-05 | 2021-07-06 | 陈红梅 | Chemical raw material combustion tail gas treatment device |
CN113599964A (en) * | 2021-10-09 | 2021-11-05 | 东营昱辰技术有限公司 | Be used for petrochemical to contain discarded object and burn clearance flue gas treatment device |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
WW01 | Invention patent application withdrawn after publication |
Application publication date: 20181211 |
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WW01 | Invention patent application withdrawn after publication |