CN112665402B - Desulfurization white smoke treatment system and treatment method thereof - Google Patents
Desulfurization white smoke treatment system and treatment method thereof Download PDFInfo
- Publication number
- CN112665402B CN112665402B CN202011422885.6A CN202011422885A CN112665402B CN 112665402 B CN112665402 B CN 112665402B CN 202011422885 A CN202011422885 A CN 202011422885A CN 112665402 B CN112665402 B CN 112665402B
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- flue gas
- desulfurization
- chimney
- cooler
- heater
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- 238000006477 desulfuration reaction Methods 0.000 title claims abstract description 70
- 230000023556 desulfurization Effects 0.000 title claims abstract description 69
- 239000000779 smoke Substances 0.000 title claims abstract description 69
- 238000000034 method Methods 0.000 title claims abstract description 11
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 48
- 239000003546 flue gas Substances 0.000 claims abstract description 47
- 238000005245 sintering Methods 0.000 claims abstract description 30
- 230000003009 desulfurizing effect Effects 0.000 claims abstract description 28
- 238000001816 cooling Methods 0.000 claims abstract description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 16
- 230000003014 reinforcing effect Effects 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 5
- 238000005520 cutting process Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 8
- 230000009466 transformation Effects 0.000 abstract description 3
- 238000010438 heat treatment Methods 0.000 description 7
- 239000004071 soot Substances 0.000 description 7
- 229910000831 Steel Inorganic materials 0.000 description 5
- 239000000428 dust Substances 0.000 description 5
- 239000010959 steel Substances 0.000 description 5
- 230000007797 corrosion Effects 0.000 description 4
- 238000005260 corrosion Methods 0.000 description 4
- 230000002787 reinforcement Effects 0.000 description 3
- 238000009833 condensation Methods 0.000 description 2
- 230000005494 condensation Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000009766 low-temperature sintering Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
Classifications
-
- 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
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Landscapes
- Chimneys And Flues (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention provides a desulfurization white smoke treatment system and a treatment method thereof. The system comprises a main exhaust fan chamber, wherein the main exhaust fan chamber is communicated with a cooler, the cooler is communicated with a desulfurizing tower, a heater is arranged on the desulfurizing tower, a desulfurizing chimney is communicated with a circular cooling chimney, and the cooler is communicated with the heater in a circulating way. In the treatment method, the main exhaust fan chamber discharges sintering flue gas, the sintering flue gas passes through a cooler, heat is transferred to a heat transfer medium and then cooled, then the sintering flue gas enters a desulfurizing tower for desulfurization to become desulfurization flue gas, the desulfurization flue gas passes through a heater, the temperature is raised after absorbing the heat of the heat transfer medium, finally, the desulfurization flue gas is sent into a ring cooling chimney through a desulfurization chimney, and the heat transfer medium between the cooler and the heater circulates circularly. The invention has the following advantages: the heat of the sintering flue gas is utilized to heat the desulfurized flue gas, the flue gas reaches a temperature above the dew point temperature, no condensed water is generated, and pipelines and equipment are not corroded; the transformation does not affect the production of the sintering machine; can realize stable yield and high yield.
Description
Technical Field
The invention relates to flue gas treatment, in particular to a desulfurization white flue gas treatment system and a treatment method thereof.
Background
In the working process of the existing desulfurization white smoke system, desulfurization smoke is sent to an annular cooling chimney for heating through a closed desulfurization chimney, a pipeline, a dehydrator and a white smoke booster fan, and the smoke water content is high, the temperature of a smoke outlet is low (only about 54 ℃), so that the dew point temperature is low, and condensed water corrodes a pipeline and a fan impeller along the way after the smoke is condensed.
The impeller and the shutter valve of the booster fan of the original white smoke system are made of common steel, and the service life of the impeller of the white smoke booster fan is less than 1 month, so that the impeller is made of corrosion-resistant, water vapor-resistant, and high-strength and toughness materials. Meanwhile, the pipeline is severely corroded and perforated, frequent maintenance and replacement are needed, and the whole system is frequently in fault and seriously affects the normal production order.
Disclosure of Invention
The invention aims to solve the technical problems of overcoming the defects of the prior art, and aims to provide a desulfurization white smoke treatment system and a treatment method thereof, which solve the problems of easy condensation and corrosion of desulfurization smoke of the desulfurization white smoke system and pipelines.
The invention is realized by the following technical scheme: the utility model provides a desulfurization white smoke treatment system, includes main air exhauster room, and main air exhauster room communicates with the flue gas passageway of cooler, and the flue gas passageway of cooler communicates with the import of desulfurizing tower, is equipped with the heater on the desulfurizing tower, and the inside passageway of desulfurizing tower passes through the flue gas passageway of heater, and the desulfurization chimney export of desulfurizing tower communicates with the ring cooling chimney, communicates through the circulation passageway between the heat transfer medium passageway of cooler and the heat transfer medium passageway of heater.
Further, a circulating pump is arranged on the circulating channel.
Further, the heat transfer medium in the heat transfer medium channel is desalted water.
Further, the circulating channel is provided with an auxiliary heater and a straight-through valve which are connected in parallel.
Further, the circulating channel is provided with a through valve connected with the cooler in parallel.
Further, at least one of the cooler and the heater is provided with a steam soot blower, and the steam soot blower is communicated with the steam supply assembly.
Further, the circulating channel is communicated with the water supply assembly.
Further, the main exhaust fan chamber is communicated with a dust remover, and the dust remover is communicated with the sintering machine chamber.
Further, the main exhaust fan chamber is communicated with the desulfurization booster fan, and the desulfurization booster fan is communicated with a flue gas channel of the cooler.
Further, the heater is arranged at a cutting position between the desulfurizing tower and the desulfurizing chimney through an expansion joint.
Further, the outlet of the desulfurization chimney is communicated with a white smoke pipeline, and the white smoke pipeline is communicated with the ring cooling chimney.
Further, a white smoke booster fan is arranged on the white smoke pipeline.
Further, the desulfurization chimney comprises a chimney wall and an annular beam outside the chimney wall, wherein the chimney wall is provided with an opening opposite to the white smoke pipeline, and the chimney wall is provided with reinforcing structures positioned at two sides of the opening.
Further, the reinforcement structure comprises a special upright post, the special upright post is connected with the chimney wall, the middle part of the special upright post is arranged in a groove of the ring beam, the end face of the special upright post is connected with the side end face of the ring beam, and grouting material is arranged between the chimney wall and the special upright post.
Further, the outer side of the special upright post is provided with a through long plate, and the inner end surface of the through long plate is connected with the outer end surface of the ring beam.
Furthermore, the special stand column is a channel steel.
Further, rib plates are arranged between the special stand column and the chimney wall and between the ring beam at the end part and the chimney wall.
According to the treatment method of the desulfurization white smoke treatment system, the main exhaust fan chamber discharges high-temperature sintering smoke, the sintering smoke passes through the smoke channel of the cooler, heat is transferred to the heat transfer medium in the cooler and then cooled, then the sintering smoke enters the desulfurization tower to be desulfurized and becomes desulfurization smoke, the desulfurization smoke passes through the smoke channel of the heater, the temperature of the heat transfer medium in the heater is increased after being absorbed, finally the desulfurization smoke is sent into the annular cooling chimney through the desulfurization chimney, and the heat transfer medium between the cooler and the heater circulates through the circulation channel.
Compared with the prior art, the invention has the following advantages and beneficial effects:
1. the heat of the sintering flue gas is utilized, the heat is conveyed to a heater of a desulfurizing tower through a heat exchange device, the desulfurized low-temperature water-containing saturated flue gas is heated, the heated flue gas reaches a temperature above a dew point temperature, no condensed water is generated from a desulfurizing chimney to a ring cooling chimney, a pipeline is not corroded, and the service lives of a white smoke booster fan and a shutter valve are prolonged;
2. the method is completed on the premise of not influencing the normal production of the sintering machine, does not need gas heating, saves energy, heats the smoke by using waste heat, and achieves the purpose of eliminating white smoke; the opening degree of the air door of the main exhaust fan can be improved, the influence on the normal production order caused by long-term shutdown is avoided, and stable production and high production are realized.
3. Utilize reinforced structure to carry out the structural reinforcement to the desulfurization chimney of transformation, guarantee the normal use of desulfurization chimney after transformation, avoid desulfurization chimney trompil to cause the influence to its structure to influence production steady, safe operation.
Drawings
The accompanying drawings, which are included to provide a further understanding of embodiments of the invention and are incorporated in and constitute a part of this application, illustrate embodiments of the invention. In the drawings:
FIG. 1 is a schematic flow chart of the present invention.
Fig. 2 is a layout structure diagram of the present invention.
FIG. 3 is a diagram of the open pore structure of the desulfurization chimney of the present invention.
Fig. 4 is an enlarged view at a of fig. 3.
Fig. 5 is an enlarged view at B of fig. 3.
Fig. 6 is a C-C cross-sectional view of fig. 5.
Fig. 7 is a sectional view of D-D of fig. 3.
Fig. 8 is an enlarged view at E of fig. 7.
In the figure: 1-cooler, 2-heater, 3-circulating pump, 4-auxiliary heater, 5-through valve, 6-steam soot blower, 7-steam supply assembly, 8-water supply assembly, 9-sintering machine room, 10-dust remover, 11-main exhaust fan room, 12-desulfurization booster fan, 13-desulfurizing tower, 14-white smoke pipeline, 15-ring cooling chimney, 16-chimney wall, 17-opening, 18-ring beam, 19-special upright post, 20-grouting material, 21-long plate and 22-rib plate.
Detailed Description
For the purpose of making apparent the objects, technical solutions and advantages of the present invention, the present invention will be further described in detail with reference to the following examples and the accompanying drawings, wherein the exemplary embodiments of the present invention and the descriptions thereof are for illustrating the present invention only and are not to be construed as limiting the present invention.
Example 1
As shown in fig. 1 and 2, a desulfurization white smoke abatement system includes a cooler 1, a heater 2, an auxiliary heater 4, a sintering machine chamber 9, a main exhaust fan chamber 11, a desulfurization tower 13, a desulfurization chimney, and a ring cooling chimney 15. The sintering machine chamber 9 is communicated with a dust remover 10, the dust remover 10 is communicated with a main exhaust fan chamber 11, and the main exhaust fan chamber 11 is communicated with a desulfurization booster fan 12.
The desulfurization booster fan 12 is communicated with a flue gas channel of the cooler 1, and the cooler is used for realizing heat exchange of sintering flue gas and transmitting heat to the sintering flue gas with the heat transfer medium changed into low temperature. The flue gas channel of the cooler 1 is communicated with the inlet of a desulfurizing tower 13, and the desulfurizing tower is used for desulfurizing the low-temperature sintering flue gas and desulfurizing the sintering flue gas into desulfurized flue gas (saturated white steam, which is called white flue gas for short).
The desulfurization tower 13 is provided with the heater 2, the internal channel of the desulfurization tower 13 passes through the flue gas channel of the heater 2, the heater is used for realizing the heating of desulfurization flue gas, heating the low-temperature water-containing saturated white flue gas after desulfurization, and avoiding flue gas condensation corrosion equipment and pipelines. The outlet of the desulfurization chimney of the desulfurization tower 13 is communicated with the white smoke pipeline 14, the white smoke pipeline 14 is communicated with the annular cooling chimney 15, the desulfurization smoke enters the white smoke pipeline through the desulfurization chimney, and enters the annular cooling chimney after being pressurized by the white smoke booster fan arranged on the white smoke pipeline, so as to further heat the smoke, and specifically, the desulfurization smoke can be introduced into the high-temperature, medium-temperature and low-temperature mixed chimney of the annular cooling chimney.
The heat transfer medium channels of the cooler 1 and the heat transfer medium channels of the heater 2 are communicated through the circulation channels, so that circulation of the heat transfer medium is realized, and heat of the sintering flue gas is continuously transferred to the desulfurization flue gas. Specifically, the outlet of the heat transfer medium channel of the cooler 1 is communicated with the auxiliary heater 4, the auxiliary heater 4 is communicated with the inlet of the heat transfer medium channel of the heater 2, the outlet of the heat transfer medium channel of the heater 2 is communicated with the circulating pump 3, the circulating pump is communicated with the inlet of the heat transfer medium channel of the cooler 1, the heat transfer medium is desalted water, and the power is provided for the desalted water through the circulating pump, so that continuous circulation between the cooler and the heater is realized.
The circulation channel is provided with a through valve 5 connected with the cooler 1 in parallel, and the through valve can be directly communicated with the cooler channel by closing the cooler channel, so that the cooler is disconnected. The circulation channel is provided with a through valve 5 connected with the auxiliary heater 4 in parallel, the auxiliary heater is not operated under normal conditions, the through valve is communicated with the auxiliary heater, and the auxiliary heater is opened to close the through valve for auxiliary heating of the heat exchange medium under low-temperature and high-humidity conditions in winter and rainy seasons so as to ensure the temperature of the flue gas outlet.
The cooler 1 and the heater 2 are respectively provided with a steam soot blower 6, the number of the steam soot blowers is preferably seven, the steam soot blowers 6 are communicated with the steam supply assembly 7, the steam soot blowers are used for blowing and cleaning the flue gas channel, and the heat exchange effect is ensured. The circulating channel is communicated with the water supply assembly 8, and desalted water is timely supplemented for the circulating channel.
The heater 2 is installed at a cut between the desulfurizing tower 13 and the desulfurizing chimney through an expansion joint. During reconstruction, the original desulfurizing tower chimney needs to be cut off from the elevation position of 30 meters, and the chimney is cut off by about 10 meters, so that a steel truss is manufactured and installed from the ground in advance, the whole desulfurizing chimney is supported and reinforced, and then the expansion joint, the heater and other components are installed.
The desulfurization chimney comprises a chimney wall 16 and a ring beam 18 outside the chimney wall 16, wherein the ring beam 18 is channel steel, and the chimney wall 16 is provided with an opening 17 opposite to the white smoke pipeline 14, and the opening is used for enabling the white smoke pipeline to be led into the desulfurization chimney.
As shown in fig. 3 to 8, the chimney wall 16 is provided with reinforcing structures located at two sides of the opening 17, and the reinforcing structures are used for guaranteeing the structural strength of the desulfurization chimney after the opening. The reinforcing structure comprises special stand columns 19, the special stand columns 19 are channel steel with notch faces to the chimney wall, two special stand columns 19 are arranged on each side of the opening, the special stand columns 19 are welded with the chimney wall 16, the middle parts of the special stand columns 19 are clamped into and welded in the grooves of the ring beams 18, the end faces of the special stand columns 19 are welded with the side end faces of the ring beams 18, and the strength of the opening is guaranteed. A non-shrinkage grouting material 20 is arranged between the chimney wall 16 and the special upright 19, and is used for ensuring the tight contact between the special upright and the chimney wall, so that the integral stress stability of the structure is realized.
The outer side of the specially-made upright post 19 is welded with a through long plate 21, the inner end surface of the through long plate 21 is connected with the outer end surface of the ring beam 18, and the structure at the opening is further enhanced. Rib plates 22 are welded between the special upright posts 19 and the chimney wall 16 and between the ring beams 18 at the end parts and the chimney wall 16, so that auxiliary reinforcement is realized.
Example 2
A desulfurization white smoke treatment method comprises the steps that sintering operation of mineral powder is carried out in a sintering machine room 9, sintering smoke in the sintering machine room is extracted by a main exhaust fan room 11, then high-temperature sintering smoke is discharged by the main exhaust fan room 11, the sintering smoke passes through a smoke channel of a cooler 1, heat is transferred to a heat transfer medium in the cooler 1 and then cooled, the sintering smoke enters a desulfurization tower 13 for desulfurization to become desulfurization smoke, the desulfurization smoke passes through a smoke channel of a heater 2, the heat of the heat transfer medium in the heater 2 is absorbed and then heated, finally the desulfurization smoke is sent into a white smoke pipeline through a desulfurization chimney, and is sent into a ring cooling chimney 15 after being pressurized by a white smoke booster fan of the white smoke pipeline, so that the heat in the sintering smoke is utilized to heat the desulfurization smoke, the generation of condensate in the desulfurization smoke is reduced, the service life of equipment and the pipeline due to corrosion is reduced, and stable and efficient production is realized.
The heat transfer medium between the cooler 1 and the heater 2 circulates through the circulation passage. Specifically, the heat transfer medium in the cooler absorbs the heat of the sintering flue gas, enters the heater through the circulating channel, emits the heat in the heater, the heat emitted by the heat transfer medium is absorbed by the desulfurization flue gas to raise the temperature, the generation of condensed water in the desulfurization flue gas is reduced, then the heat transfer medium is pressurized by the circulating pump on the circulating channel to provide power, and the heat is re-circulated to the cooler to absorb the heat, and the continuous circulation and reciprocation are realized.
Under the conditions of low temperature and high humidity in winter and rainy season, in order to ensure the temperature of the flue gas outlet, the heating medium flowing out of the cooler is heated by the auxiliary heater and then enters the heater, so that the heat transfer medium is ensured to have sufficient heat. Typically, the heating medium exiting the cooler flows directly through the through-passage into the heater. When the cooler needs to be overhauled and maintained, the heat transfer medium flowing out of the circulating pump directly flows into the heater or the auxiliary heater through the through channel, the cooler is temporarily disconnected from the system, and normally, the heat transfer medium flowing out of the circulating pump flows back to the cooler to absorb heat.
The foregoing description of the embodiments has been provided for the purpose of illustrating the general principles of the invention, and is not meant to limit the scope of the invention, but to limit the invention to the particular embodiments, and any modifications, equivalents, improvements, etc. that fall within the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (5)
1. The utility model provides a desulfurization white smoke treatment system, includes main air exhauster room (11), its characterized in that: the main exhaust fan chamber (11) is communicated with a flue gas channel of the cooler (1), the flue gas channel of the cooler (1) is communicated with an inlet of the desulfurizing tower (13), the desulfurizing tower (13) is provided with a heater (2), an internal channel of the desulfurizing tower (13) passes through the flue gas channel of the heater (2), a desulfurizing chimney outlet of the desulfurizing tower (13) is communicated with the ring cooling chimney (15), and a heat transfer medium channel of the cooler (1) is communicated with a heat transfer medium channel of the heater (2) through a circulating channel;
the heater (2) is arranged at a cutting position between the desulfurizing tower (13) and the desulfurizing chimney through an expansion joint;
the outlet of the desulfurization chimney is communicated with a white smoke pipeline (14), and the white smoke pipeline (14) is communicated with a circular cooling chimney (15);
the desulfurization chimney comprises a chimney wall (16) and ring beams (18) arranged on the outer side of the chimney wall (16), wherein an opening (17) opposite to the white smoke pipeline (14) is formed in the chimney wall (16), and reinforcing structures positioned on two sides of the opening (17) are arranged on the chimney wall (16);
the reinforcing structure comprises a special upright post (19), the special upright post (19) is connected with the chimney wall (16), the middle part of the special upright post (19) is arranged in a groove of the ring beam (18), the end face of the special upright post (19) is connected with the side end face of the ring beam (18), and grouting material (20) is arranged between the chimney wall (16) and the special upright post (19);
the outer side of the special upright post (19) is provided with a through long plate (21), and the inner end surface of the through long plate (21) is connected with the outer end surface of the ring beam (18).
2. The desulfurized white-smoke abatement system of claim 1, wherein: the heat transfer medium in the heat transfer medium channel is desalted water.
3. The desulfurized white-smoke abatement system of claim 1, wherein: the circulating channel is provided with an auxiliary heater (4) and a straight-through valve (5) which are connected in parallel.
4. A desulphurised white smoke abatement system according to claim 1 or 3, wherein: the circulating channel is provided with a through valve (5) connected with the cooler (1) in parallel.
5. A treatment method of the desulfurization white smoke treatment system according to any one of claims 1-4, wherein the main exhaust fan chamber (11) discharges high-temperature sintering smoke, and is characterized in that: the sintering flue gas cooling after passing through the flue gas channel of cooler (1), heat transfer gives heat transfer medium in cooler (1) and then cools down, then sintering flue gas gets into desulfurizing tower (13) and carries out the desulfurization and become desulfurization flue gas, desulfurization flue gas is through the flue gas channel of heater (2), after absorbing the heat of heat transfer medium in heater (2), the temperature rise, finally desulfurization flue gas sends into in ring cold chimney (15) through desulfurization chimney, heat transfer medium between cooler (1) and heater (2) circulate through circulation channel circulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011422885.6A CN112665402B (en) | 2020-12-08 | 2020-12-08 | Desulfurization white smoke treatment system and treatment method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011422885.6A CN112665402B (en) | 2020-12-08 | 2020-12-08 | Desulfurization white smoke treatment system and treatment method thereof |
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| Publication Number | Publication Date |
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| CN112665402A CN112665402A (en) | 2021-04-16 |
| CN112665402B true CN112665402B (en) | 2023-12-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202011422885.6A Active CN112665402B (en) | 2020-12-08 | 2020-12-08 | Desulfurization white smoke treatment system and treatment method thereof |
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| CN207445927U (en) * | 2017-11-08 | 2018-06-05 | 杭州红山热电有限公司 | A kind of Wet FGD |
| CN108970370A (en) * | 2018-10-09 | 2018-12-11 | 杭州蕴泽环境科技有限公司 | It is a kind of low cost flue gas device for deep cleaning and its purification receive water eliminating white smoke technique |
| CN209060882U (en) * | 2018-10-17 | 2019-07-05 | 山东国舜建设集团有限公司 | Integral type subtracts white desulfurizer |
| CN209163592U (en) * | 2019-04-12 | 2019-07-26 | 中国化学工程第十四建设有限公司 | A kind of chimney band cigarette aperture transformation protective device |
| CN111203083A (en) * | 2020-02-25 | 2020-05-29 | 钢铁研究总院 | Sintering flue gas desulfurization and denitrification process |
| CN211274153U (en) * | 2019-12-02 | 2020-08-18 | 海汇集团有限公司 | Boiler flue gas whitening device |
-
2020
- 2020-12-08 CN CN202011422885.6A patent/CN112665402B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4519303A (en) * | 1983-03-24 | 1985-05-28 | Crown Union, Inc. | Chimney lining system including frame-supported membrane |
| KR20000014907U (en) * | 1998-12-31 | 2000-07-25 | 김형벽 | Independent support steel structure stack device |
| CN201025366Y (en) * | 2007-01-30 | 2008-02-20 | 武汉都市环保工程技术股份有限公司 | Tower base wet chimney |
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| CN206144252U (en) * | 2016-10-31 | 2017-05-03 | 北京京诚科林环保科技有限公司 | Concrete chimney with newly-added flue hole |
| CN207445927U (en) * | 2017-11-08 | 2018-06-05 | 杭州红山热电有限公司 | A kind of Wet FGD |
| CN108970370A (en) * | 2018-10-09 | 2018-12-11 | 杭州蕴泽环境科技有限公司 | It is a kind of low cost flue gas device for deep cleaning and its purification receive water eliminating white smoke technique |
| CN209060882U (en) * | 2018-10-17 | 2019-07-05 | 山东国舜建设集团有限公司 | Integral type subtracts white desulfurizer |
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| CN111203083A (en) * | 2020-02-25 | 2020-05-29 | 钢铁研究总院 | Sintering flue gas desulfurization and denitrification process |
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| Publication number | Publication date |
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| CN112665402A (en) | 2021-04-16 |
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