CN106524774A - Flue gas cleaning and heat exchange integrated device - Google Patents
Flue gas cleaning and heat exchange integrated device Download PDFInfo
- Publication number
- CN106524774A CN106524774A CN201611065429.4A CN201611065429A CN106524774A CN 106524774 A CN106524774 A CN 106524774A CN 201611065429 A CN201611065429 A CN 201611065429A CN 106524774 A CN106524774 A CN 106524774A
- Authority
- CN
- China
- Prior art keywords
- heat
- gas cleaning
- integrated device
- heat exchange
- flue gas
- 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.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/004—Systems for reclaiming waste heat
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/008—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases cleaning gases
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/004—Systems for reclaiming waste heat
- F27D2017/007—Systems for reclaiming waste heat including regenerators
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P80/00—Climate change mitigation technologies for sector-wide applications
- Y02P80/10—Efficient use of energy, e.g. using compressed air or pressurized fluid as energy carrier
- Y02P80/15—On-site combined power, heat or cool generation or distribution, e.g. combined heat and power [CHP] supply
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Filtering Of Dispersed Particles In Gases (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The present invention discloses a flue gas cleaning and heat exchange integrated device, which belongs to the technical field of flue gas waste heat recovery devices and is designed to solve the problems of difficult waste heat recovery, low heat exchange efficiency, complicated flue gas dust removal process and the like of an existing device. The flue gas cleaning and heat exchange integrated device provided by the present invention comprises a housing, a tube nest that divides the housing into a dust collection chamber and a gas cleaning chamber, ceramic filtering membrane tubes and heat exchange tubes disposed in the ceramic filtering membrane tubes, wherein a flue gas inlet pipe and a flue gas outlet pipe are disposed at two sides of the housing, respectively; the flue gas inlet pipe communicates with the dust collection chamber, while the flue gas outlet pipe communicates with the gas cleaning chamber; and one end of each heat exchange tube is connected to a heat exchange medium feed pipe, while the other end of the heat exchange tube is connected to a heat exchange medium discharge pipe. The flue gas cleaning and heat exchange integrated device provided by the present invention is high in waste heat recovery, high in heat exchange efficiency and simple in flue gas dust removal process, and is of great significance to energy conservation and environmental protection.
Description
Technical field
The present invention relates to flue gas waste heat recovery apparatus technical field, and in particular to a kind of gas cleaning and heat-exchange integrated dress
Put.
Background technology
The flue gas typical temperature discharged by the industrial furnace of the industries such as metallurgy, electric power, building materials up to 600 DEG C, in order to improve
Efficiency of energy utilization, environmental protection, it is desirable to be recycled to the waste heat of flue gas using some devices.
The high-temperature flue gas dustiness of Industrial Stoves discharge is huge and dust granules are thinner, thus, the discharged height of Industrial Stoves
The waste heat recovery of warm flue gas is more difficult.When deduster front end is placed in for the heat exchanger of waste heat recovery, flue-gas temperature compared with
Height thus allows for effective waste heat recovery, but, in heat transfer process, as dust content height causes usual heat exchanger
Easily there is the sedimentation and attachment of dust in surface, with the carrying out of heat exchange, it is easy to form dust layer so as to drop in heat exchanger surface
Low heat exchange efficiency, accordingly, it would be desirable to the normal heat exchangers of Jing carry out machinery or ultrasonic deashing.And smoke duster the most frequently used at present
Flue-gas temperature not higher than 300 DEG C is required if (such as sack cleaner and electrostatic precipitator) typically.If first carrying out dedusting to flue gas
Then need to carry out flue gas cooling process, major way has spray cooling and is passed through cold air cooling, and these modes not only increase
The cost of investment of equipment, also results in substantial amounts of heat losses, causes huge energy waste.
In sum, above two mode has that waste heat recovery is difficult, heat exchange efficiency is low, dust collecting process is complicated etc. and asks
Topic, thus, a kind of new gas cleaning is needed badly with heat-exchange integrated device to solve the problems, such as presently, there are.
The content of the invention
The purpose of the present invention is to propose to a kind of waste heat recovery rate is high, heat exchange efficiency is high, the simple gas cleaning of flue gas ash removal
With heat-exchange integrated device.
It is that, up to this purpose, the present invention is employed the following technical solutions：
A kind of gas cleaning and heat-exchange integrated device, including housing, the housing is divided into dust storage chamber and air-purifying chamber
Card, the ceramic filter membrane tube being plugged on the card and the heat exchanger tube being placed in the ceramic filter membrane tube, wherein, institute
That states housing is respectively provided on two sides with smoke-intake pipe and pipe, and the smoke-intake pipe is connected with the dust storage chamber, the pipe and institute
State air-purifying chamber connection；One end connection heat transferring medium input pipe of the heat exchanger tube, other end connection heat transferring medium efferent duct.
Used as a preferred version of the present invention, the inner walls attach heat insulation layer, thickness 5cm to 15cm it
Between.
Used as a preferred version of the present invention, the ceramic filter membrane tube includes porous ceramic support and is attached to institute
The ceramic filter membrane on porous ceramic support is stated, the aperture in hole is equal on the porous ceramic support and the ceramic filter membrane
Between 0.1 μm to 10 μm.
Used as a preferred version of the present invention, the card is consistent with the cross sectional shape of the housing；On the card
Interval offers multiple through holes；The thickness of the card is between 6mm to 20mm.
Used as a preferred version of the present invention, each through hole on the card is interior to be plugged with a ceramic mistake
Filter membrane pipe, is sealed by the sealing gasket being embedded in the through hole；The opening of each ceramic filter membrane tube is towards institute
Air-purifying chamber is stated, remainder is suspended in the dust storage chamber.
As a preferred version of the present invention, in each described ceramic filter membrane tube, a heat exchanger tube is equipped with,
It is parallel with one another and/or be arranged in series between multiple heat exchanger tubes.
Used as a preferred version of the present invention, each described heat exchanger tube is in U-shaped, W types, screw type or notch cuttype
One kind, is arranged at intervals with the outer wall of each heat exchanger tube for improving the bulge-structure of heat exchange efficiency.
As a preferred version of the present invention, also including cover plate, wherein, offer on the cover plate multiple with the flower
The corresponding hole of through hole on plate, the cover plate covers the overthe openings in the ceramic filter membrane tube, and fixes with the card.
As a preferred version of the present invention, also include for fixing the fixed mount of the heat exchanger tube and being located at the shell
The unloading valve of body bottom.
Used as a preferred version of the present invention, the housing, the heat exchanger tube and the card are by metal material
Make.
Beneficial effects of the present invention are：
(1), gas cleaning of the invention includes housing, housing is divided into dust storage chamber and air-purifying chamber with heat-exchange integrated device
Card, the ceramic filter membrane tube being plugged on card and the heat exchanger tube being placed in ceramic filter membrane tube, high-temperature dust-containing flue gas
Dust storage chamber is entered from smoke-intake pipe, is entered in earthenware chamber Jing after ceramic filter membrane tube filtration, purification, the high-temperature flue gas after purification exist
Contact with heat exchanger tube in ceramic tube chamber, heat exchange is carried out with heat exchanger tube internal heat medium, so as to realize heat exchange, after heat exchange
Flue gas enter air-purifying chamber, Jing pipes are discharged.The gas cleaning realizes gas cleaning with heat exchange with heat-exchange integrated device
Integration, reduces technological process, greatlys save engineering land used.
(2), gas cleaning of the invention and heat-exchange integrated device its heat exchanger tube directly with purification after smoke contacts, subtract
Sedimentation of the dust in heat exchange pipe surface is lacked, has improve heat exchange efficiency, waste heat recovery rate is higher.
(3), gas cleaning of the invention with heat-exchange integrated device compared to sack cleaner and electrostatic precipitator, need not
Cooling process is carried out to flue gas, technique is simplified, energy utilization rate is improve.
Description of the drawings
Fig. 1 is the structural representation of the gas cleaning with heat-exchange integrated device of preferred embodiment of the present invention offer；
Fig. 2 is the enlarged drawing of dotted box portion in Fig. 1；
Fig. 3 is the top view of card and cover plate.
It is labeled as in figure：
1st, housing；2nd, heat insulation layer；3rd, ceramic filter membrane tube；4th, heat exchanger tube；5th, heat exchange fin；6th, card；7th, smoke
Pipe；8th, heat transferring medium efferent duct；9th, fixed mount；10th, heat transferring medium input pipe；11st, cover plate；12nd, sealing gasket；13rd, smoke-intake pipe；
14th, unloading valve.
Specific embodiment
Technical scheme is further illustrated below in conjunction with the accompanying drawings and by specific embodiment.
Preferred embodiment：
This preferred embodiment discloses a kind of gas cleaning with heat-exchange integrated device.As shown in figure 1, gas cleaning and heat exchange
Integrated apparatus include housing 1, attach in 1 inwall of housing heat insulation layer 2, it is dust storage chamber and air-purifying chamber by 1 point of housing
Card 6, the ceramic filter membrane tube 3 being plugged on card 6, the heat exchanger tube 4 being placed in ceramic filter membrane tube 3, cover in ceramic filter
The cover plate 11 of the overthe openings of membrane tube 3, the fixed mount 9 for fixing heat exchanger tube 4 and the unloading valve 14 positioned at 1 bottom of housing.
Part above card 6 is air-purifying chamber, and the part of lower section is dust storage chamber.Housing 1 is respectively provided on two sides with smoke-intake pipe
13 and pipe 7, smoke-intake pipe 13 is connected with dust storage chamber, and pipe 7 is connected with air-purifying chamber.
Heat insulation layer 2 is prepared from the good material of high temperature resistant and heat-proof quality, and composition is high alumina refractory casting material, light
The arbitrary proportion mixing of one or more materials in refractory brick, mullite fiber cotton, aluminosilicate fiber cotton, rock wool, insulation
The thickness of thermal insulation layer 2 is between 5cm to 15cm.In the present embodiment, the thickness of preferred heat insulation layer 2 is about 10cm, and material is not for
Carry out mineral wool cotton, be fixed on housing 1 with heat-resisting rivet.
Housing 1 is made up of metal material, and its cross sectional shape is consistent with the cross sectional shape of card 6, rectangular, and the two passes through
Flange is welded to connect.Card 6 is prepared from austenitic heat-resistance steel, and thickness is uniformly distributed on card 6 between 6mm to 20mm
The through hole of multiple flares or stepped ramp type, is inlaid with through hole by fine containing High silica glass cloth, alumina silicate fibre or aluminum oxide
Refractory seals pad 12 made by dimension, the sealing gasket 12 can be produced when using and be deformed preferably to buffer ceramic filter tube 3 on a small quantity
With the stress between card 6, and the sealing between ceramic filter tube 3 and card 6 is realized.In the present embodiment preferred card 6 by
Prepared by 1Cr18Ni9Ti heat resisting steel, thickness is about 10mm.Through hole on card 6 is along 6 thickness direction flare of card, upper straight
Footpath is about 90mm, and lower diameter is about 80mm, and sealing gasket 12 is preferably made up of alumina fibre, as shown in Figure 2.
A ceramic filter membrane tube 3, the opening of each ceramic filter membrane tube 3 are plugged with each through hole on card 6
Towards air-purifying chamber, remainder is suspended in dust storage chamber, ceramic filter membrane tube 3 can process as needed flue, on
Under isometrical cylindricality or other structures.Ceramic filter membrane tube 3 includes porous ceramic support and is attached to porous ceramic support
On single or multiple lift ceramic filter membrane, porous ceramic support and ceramic filter membrane made from high temperature ceramic material,
Composition is Al2O3、SiC、Si3N4, alumina silicate, mullite, cordierite, ZrO2In one or more arbitrary proportions combine, porous
On ceramic supporting body, the aperture in hole is between 0.1 μm to 10 μm.In the present embodiment, preferably ceramic filtering membrane tube 3 is processed into loudspeaker
Shape, 3 diameter of ceramic filter membrane tube are about 80mm.Every set time or fixed resistance depreciation, by pulse backblowing or sound wave etc.
Deashing is carried out to 3 outer wall of ceramic filter membrane tube, the purifying regeneration of ceramic filter membrane tube 3 is realized, filter produced by dust from unloading
Cleaning is discharged in timing at grey valve 14.
A heat exchanger tube 4 is equipped with each ceramic filter membrane tube 3, according to flue-gas temperature and heat exchange efficiency, multiple heat exchange
Parallel with one another and/or be arranged in series between pipe 4, one end of the heat exchanger tube 4 after being connected has heat transferring medium input pipe 10, another
With heat transferring medium efferent duct 8, heat transferring medium can be combustion gas, air or water etc. at end.In view of 4 expanded by heating of heat exchanger tube and pottery
The problems such as porcelain 3 deashing of filtering membrane tube, heat exchanger tube 4 and 3 inwall of ceramic filter membrane tube should retain >=interval of 10mm.Additionally, net
Can also arrange in air chamber heat exchanger tube 4, to improve heat exchange efficiency.
Heat exchanger tube 4 is made from the high metal tube of thermal conductivity factor, according to 3 cavity space of ceramic filter membrane tube and heat exchanger tube 4
Diameter, heat exchanger tube 4 is coupled in 3 chamber of ceramic filter membrane tube, and each heat exchanger tube 4 is in U-shaped, W types, screw type or notch cuttype
One kind.In order to increase heat exchange area, heat exchange efficiency is improved, in the premise for not affecting heat exchanger tube 4 to couple with ceramic filter membrane tube 3
Under, increasing on the outer wall of each heat exchanger tube 4 has bulge-structure, and the bulge-structure can be heat exchange fin 5, floor or other shapes
Bulge-structure.The preferred U-shape structure by made by heat-resistance stainless steel material of heat exchanger tube 4 in the present embodiment, the heat exchanger tube 4 is by being located at
Fixed mount 9 in air-purifying chamber is fixed, equally spaced on the outer wall of heat exchanger tube 4 to arrange multiple heat exchange fins 5；Heat transferring medium is selected
Air, enters from heat transferring medium input pipe 10, and after heat exchange, Jing heat transferring mediums efferent duct 8 flows out.
As shown in figure 3, cover plate 11 is prepared from austenitic heat-resistance steel, offer thereon it is multiple with card 6 on through hole phase
Corresponding hole, the diameter in hole are equal with the internal diameter of ceramic filter membrane tube 3, are fixed on card 6 by screw thread or retaining mechanism, and
Downward pressure is applied to ceramic filter membrane tube 3, is made ceramic filter membrane tube 3 realize being tightly connected with card 6, is reduced air leak rate of air curtain.
In the present embodiment, preferred cover plate 11 is prepared by 1Cr18Ni9Ti heat resisting steel, and thickness is 5mm, adopts and is bolted on card 6.
Unloading valve 14 is designed with the bottom of dust storage chamber, under unloading valve 14, spiral discharging machine is equiped with, for collecting heavy room
Internal deashing.
The present embodiment provide gas cleaning with the heat-exchange integrated device course of work be：High temperature dust more than 400 DEG C
Flue gas enters dust storage chamber by smoke-intake pipe 13, Jing after 3 filtration, purification of ceramic filter membrane tube enter its inner chamber, contained dust by membrane tube outside
Wall is intercepted；High-temperature flue gas after purification are contacted with U heat exchange 4 in 3 chamber of ceramic filter membrane tube, in flue gas and U-tube
Heat transferring medium realizes heat exchange；Flue gas after heat exchange is discharged by the pipe 7 communicated with air-purifying chamber；Medium after heat exchange is from heat exchange
Medium efferent duct 8 is discharged, and the air after preheating can be used as combustion air.
The gas cleaning of the present embodiment has rational in infrastructure, equipment leak rate less than 1%, sealing with heat-exchange integrated device
Effect is good, it is high to the purification efficiency of high-temperature dust-containing flue gas many advantages, such as, Jing measuring and calculating, the dust content after purification are less than
6.32mg/Nm3, the heat exchange efficiency of device is more than 50%, energy-conserving and environment-protective is significant, and is worth popularization and application on a large scale.
Finally, in addition it is also necessary to explanation, herein, term " including ", "comprising" or its any other variant are intended to
Cover including for nonexcludability, so that a series of process, method, article or equipment including key elements not only includes those
Key element, but also including other key elements being not expressly set out, or also include for this process, method, article or set
Standby intrinsic key element.In the absence of more restrictions, the key element for being limited by sentence "including a ...", it is not excluded that
Also there is other identical element in the process including key element, method, article or equipment.
It is more than to combine the embodiment that accompanying drawing is provided, is only to realize preferred version of the invention rather than a limitation, it is any
The specific embodiment of the present invention is modified or equivalent is carried out to some technical characteristics, without deviating from skill of the present invention
The spirit of art scheme, all should cover in the middle of the technical scheme scope being claimed in the present invention.Protection scope of the present invention is also wrapped
Include those skilled in the art and do not pay the thinkable any alternate embodiments of creative work institute.
Claims (10)
1. a kind of gas cleaning and heat-exchange integrated device, it is characterised in that be divided into collection including housing (1), by the housing (1)
The card (6) of dirt room and air-purifying chamber, the ceramic filter membrane tube (3) being plugged on the card (6) and it is placed in the ceramic mistake
Heat exchanger tube (4) in filter membrane pipe (3), wherein,
The housing (1) is respectively provided on two sides with smoke-intake pipe (13) and pipe (7), the smoke-intake pipe (13) and the dust storage chamber
Connection, the pipe (7) are connected with the air-purifying chamber；
One end connection heat transferring medium input pipe (10) of the heat exchanger tube (4), other end connection heat transferring medium efferent duct (8).
2. a kind of gas cleaning according to claim 1 and heat-exchange integrated device, it is characterised in that the housing (1)
Inwall attaches heat insulation layer (2), and the thickness of the heat insulation layer (2) is between 5cm to 15cm.
3. a kind of gas cleaning according to claim 2 and heat-exchange integrated device, it is characterised in that the ceramic filter
Membrane tube (3) includes porous ceramic support and the ceramic filter membrane being attached on the porous ceramic support, the porous pottery
On porcelain supporter and the ceramic filter membrane, the aperture in hole is between 0.1 μm to 10 μm.
4. a kind of gas cleaning according to claim 3 and heat-exchange integrated device, it is characterised in that the card (6)
It is consistent with the cross sectional shape of the housing (1)；On the card (6), interval offers multiple through holes；The thickness of the card (6)
Between 6mm to 20mm.
5. a kind of gas cleaning according to claim 4 and heat-exchange integrated device, it is characterised in that the card (6)
On each through hole in be plugged with a ceramic filter membrane tube (3), by the sealing gasket (12) being embedded in the through hole
Sealed；Towards the air-purifying chamber, remainder is suspended in the dust to the opening of each ceramic filter membrane tube (3)
In room.
6. a kind of gas cleaning according to claim 5 and heat-exchange integrated device, it is characterised in that each described ceramics
A heat exchanger tube (4) is equipped with filtering membrane tube (3), parallel with one another between multiple heat exchanger tubes (4) and/or series connection sets
Put.
7. a kind of gas cleaning according to claim 6 and heat-exchange integrated device, it is characterised in that each described heat exchange
Pipe (4) is the one kind in U-shaped, W types, screw type or notch cuttype, is arranged at intervals with the outer wall of each heat exchanger tube (4)
For improving the bulge-structure of heat exchange efficiency.
8. a kind of gas cleaning according to claim 7 and heat-exchange integrated device, it is characterised in that also including cover plate
(11), wherein,
Multiple holes corresponding with through hole on the card (6) are offered on the cover plate (11), the cover plate (11) is covered
The overthe openings of the ceramic filter membrane tube (3), and it is fixed with the card (6).
9. a kind of gas cleaning according to any one of claim 1-8 and heat-exchange integrated device, it is characterised in that also wrap
Include for fixing the fixed mount (9) of the heat exchanger tube (4) and being located at the unloading valve (14) of the housing (1) bottom.
10. a kind of gas cleaning according to any one of claim 1-8 and heat-exchange integrated device, it is characterised in that institute
State housing (1), the heat exchanger tube (4) and the card (6) to be made by metal material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611065429.4A CN106524774B (en) | 2016-11-28 | 2016-11-28 | A kind of gas cleaning and heat-exchange integrated device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611065429.4A CN106524774B (en) | 2016-11-28 | 2016-11-28 | A kind of gas cleaning and heat-exchange integrated device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106524774A true CN106524774A (en) | 2017-03-22 |
| CN106524774B CN106524774B (en) | 2019-02-19 |
Family
ID=58357671
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611065429.4A Active CN106524774B (en) | 2016-11-28 | 2016-11-28 | A kind of gas cleaning and heat-exchange integrated device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106524774B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109869901A (en) * | 2017-12-02 | 2019-06-11 | 哈尔滨工大金涛科技股份有限公司 | Natural gas straight hot type water heater |
| CN113137866A (en) * | 2021-05-10 | 2021-07-20 | 武汉奇佳宇绿色环保科技有限公司 | Flue gas purification system used in continuous smelting process |
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| CN206222952U (en) * | 2016-11-28 | 2017-06-06 | 中国科学院过程工程研究所 | A kind of gas cleaning and heat-exchange integrated device |
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| CN201684496U (en) * | 2010-02-09 | 2010-12-29 | 中冶赛迪工程技术股份有限公司 | High-temperature dust remover |
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| WO2016030207A1 (en) * | 2014-08-29 | 2016-03-03 | Dürr Systems GmbH | Purification device, use of a purification device and method for purifying a waste-gas flow |
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| CN109869901B (en) * | 2017-12-02 | 2023-10-24 | 哈尔滨工大金涛科技股份有限公司 | Natural gas direct heating type water heater |
| CN113137866A (en) * | 2021-05-10 | 2021-07-20 | 武汉奇佳宇绿色环保科技有限公司 | Flue gas purification system used in continuous smelting process |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106524774B (en) | 2019-02-19 |
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