CN210645864U - Combined desulfurization and denitrification device - Google Patents
Combined desulfurization and denitrification device Download PDFInfo
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- CN210645864U CN210645864U CN201921407351.9U CN201921407351U CN210645864U CN 210645864 U CN210645864 U CN 210645864U CN 201921407351 U CN201921407351 U CN 201921407351U CN 210645864 U CN210645864 U CN 210645864U
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- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/34—Indirect CO2mitigation, i.e. by acting on non CO2directly related matters of the process, e.g. pre-heating or heat recovery
Abstract
The utility model discloses a combined desulfurization and denitrification device, which can enable desulfurization and denitrification reaction to be more thorough, flue gas enters a flue gas cooling unit, a denitrification unit, a dedusting unit and a desulfurization unit in sequence, cooled flue gas obtained in the flue gas cooling unit can be better mixed and reacted with ammonia gas, ammonia gas is ensured to be not fully dissolved in sprayed clean water due to overhigh temperature in a denitrification shell, and meanwhile, the flue gas is subjected to secondary denitrification by the arrangement of a partition plate, so that thorough denitrification is ensured; and in the desulfurization process, the flue gas is discharged from the gas inlet pipe to the discharge chimney from the exhaust pipe through the multilayer desulfurizer containing frame, and the sulfide is fully absorbed in the process.
Description
Technical Field
The utility model relates to a waste gas desulfurization denitration equipment technical field especially relates to a joint SOx/NOx control device.
Background
Coal is used as main primary energy in China, accounts for about 64% of primary energy consumption, and generates a plurality of pollutants in the coal burning process, wherein sulfur dioxide and nitrogen oxide are mainly contained. With the rapid development of economy, the emission of coal-fired flue gas in China is greatly increased by an energy structure mainly made of coal, sulfur dioxide and nitrogen oxide are more and more serious, a series of problems are generated, acid rain, sulfate aerosol, photochemical smog and the like generated by the sulfur dioxide and the nitrogen oxide can seriously threaten human health, harm plant growth, corrode metal, destroy ecological environment and the like, and the pollutants seriously influence the life of people and the development of national economy.
The traditional desulfurization and denitrification device has the advantages of large occupied area, complex equipment and large investment, and cannot meet the energy-saving requirement, and simultaneously has the problem of incomplete desulfurization and denitrification, namely, the contact time of nitrogen oxide and sulfur dioxide with the reactants of desulfurization and denitrification is short, the reaction is incomplete, finally the desulfurization and denitrification efficiency is low, and the emission concentration of the nitrogen oxide and the sulfur dioxide is large.
SUMMERY OF THE UTILITY MODEL
To the weak point that exists in the above-mentioned technique, the utility model provides a joint SOx/NOx control device.
The utility model provides a technical scheme that its technical problem adopted is:
an integrated desulfurization and denitrification apparatus, comprising: a combustion boiler from which flue gas generated after the coal is combusted is discharged; the flue gas cooling unit is connected with the combustion boiler through a first pipeline so as to cool the discharged flue gas; an ammonia gas supply source, in which high-pressure ammonia gas is stored; the denitration unit is respectively connected with the flue gas cooling unit and the ammonia gas supply source through a three-way pipeline, and the cooled flue gas and the ammonia gas are preliminarily mixed and reacted in the three-way pipeline and are fully reacted in the denitration unit; the dust removal unit is connected with the denitration unit through a second pipeline so as to capture and remove dust of solid particles; the desulfurization unit is communicated with the dust removal unit through a third pipeline and is used for finishing the desulfurization operation of the flue gas, and the tail end of the desulfurization unit is connected with a discharge chimney; and the waste heat recovery unit is positioned between the denitration unit and the dust removal unit and is used for recovering waste heat of the denitrated flue gas.
Preferably, the waste heat recovery unit is connected with an external air source, the recovered waste heat is used for heating air supplied by the external air source, the waste heat recovery unit is connected with the combustion boiler through a combustion-supporting pipeline, and the heated air enters the combustion boiler through the combustion-supporting pipeline.
Preferably, the flue gas cooling unit includes the cooling chamber that sealed casing constitutes, the inside of sealed casing is formed with cooling circuit, simultaneously, the left and right sides of sealed casing is formed with left side entry and right side entry respectively, the left side entry with be connected with intake pipe and outlet duct on the entry of right side respectively.
Preferably, the air inlet pipe is connected with the first pipeline in a sealing manner, and the air outlet pipe is connected with the three-way pipeline in a sealing manner.
Preferably, the cooling circuit comprises a U-shaped cooling liquid passage located in the cooling cavity, one end of the U-shaped cooling liquid passage is communicated with a cooling liquid supply source, and the other end of the U-shaped cooling liquid passage pumps the flowing cooling liquid back to the cooling liquid supply source through a pressurizing pump; the lower part of the U-shaped cooling liquid passage is also connected with an auxiliary supply pipe which is vertically connected downwards, the auxiliary supply pipe comprises a straight pipe section and a bent pipe section connected with the straight pipe section, and the tail end of the bent pipe section is connected with an auxiliary cooling liquid supply source.
Preferably, the denitration unit comprises a denitration shell, and a flue gas inlet and a flue gas outlet are formed on the left side and the right side of the denitration shell respectively, wherein the flue gas inlet is connected with the three-way pipeline, and the flue gas outlet is connected with the waste heat recovery unit; a water storage cavity is arranged at the upper part of the denitration shell and is sealed, and a partition plate extends from the lower part of the water storage cavity and divides the inside of the denitration shell into a first cavity and a second cavity; the lower end of the isolation plate is not connected with the denitration shell to form a drainage area, and a plurality of drainage fans are arranged in the drainage area.
Preferably, a left side water spray pipe and a right side water spray pipe are respectively formed on the left side and the right side of the lower portion of the water storage cavity, wherein the left side water spray pipe is located in the first cavity, and the right side water spray pipe is located in the second cavity; and the lower parts of the left side water spray pipe and the right side water spray pipe are respectively sleeved with a first hollow reaction cylinder and a second hollow reaction cylinder.
Preferably, the first hollow reaction cylinder and the second hollow reaction cylinder are both made of porous medium materials; wherein, the lower extreme of first hollow reaction section of thick bamboo and the hollow reaction section of thick bamboo of second extends respectively and is provided with first drain pipe and second drain pipe, first drain pipe with the lower extreme of second drain pipe with the waste water storage box that denitration casing lower part set up is connected, first drain pipe with install first valve body and second valve body on the second drain pipe respectively.
Preferably, the desulfurization unit comprises a desulfurization shell, and a plurality of groups of desulfurizer adding mechanisms are arranged at the upper part of the desulfurization shell; an air inlet pipe is formed at the lower part of the left side of the desulfurization shell, an exhaust pipe is formed at the upper part of the right side of the desulfurization shell, the air inlet pipe is connected with the third pipeline, and the exhaust pipe is connected with the exhaust chimney; a plurality of layers of desulfurizer containing frames are arranged inside the desulfurization shell;
the lower part of the desulfurization shell is provided with a discharge valve, the lower end of the discharge valve is provided with a material containing chamber, and the side surface of the material containing chamber is provided with a material stirring assembly extending into the material containing chamber; the material shifting assembly comprises a material shifting cylinder located outside the material containing chamber, and a piston rod of the material shifting cylinder extends into the material containing chamber and is fixedly connected with the material shifting fork.
Preferably, the lower end of the material containing chamber is connected with a vibration discharger, and a discharging mechanism comprising a rotary valve is arranged on a pipeline at the lower part of the vibration discharger;
the desulfurizer adding mechanism comprises a lower hopper, a regulating valve and a buffer chamber which are sequentially connected from top to bottom, wherein the buffer chamber is fixedly arranged at the upper end of the desulfurization shell.
Compared with the prior art, the utility model, its beneficial effect is: the utility model provides a joint SOx/NOx control device, it can make SOx/NOx control reaction more thorough, and the flue gas gets into flue gas cooling unit, denitration unit, dust removal unit and desulfurization unit successively, obtains the mixed reaction of refrigerated flue gas can be better and ammonia at flue gas cooling unit, ensures in the denitration casing, and ammonia can not fully dissolve in the clear water that sprays because the temperature is too high, and simultaneously, the setting up of division board makes the flue gas experience the secondary denitration, ensures that the denitration is thorough; and in the desulfurization process, the flue gas is discharged from the exhaust pipe to the discharge chimney through the multilayer desulfurizer containing frame from the gas inlet pipe, and in the process, the sulfide is fully absorbed.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
fig. 2 is a schematic structural diagram of a flue gas cooling unit in the present invention;
fig. 3 is a schematic structural diagram of a denitration unit in the present invention;
fig. 4 is a schematic structural diagram of a desulfurization unit in the present invention.
In the figure: 10. the device comprises a combustion boiler, 11, a flue gas cooling unit, 12, a three-way pipeline, 13, an ammonia gas supply source, 14, a denitration unit, 15, a dust removal unit, 16, a desulfurization unit, 17, an exhaust chimney, 18, a waste heat recovery unit, 20, a sealing shell, 21, a U-shaped cooling liquid passage, 22, a cooling loop, 23, an air inlet pipe, 24, an air outlet pipe, 25, a straight pipe section, 26, a bent pipe section, 44, a flue gas inlet, 48, a flue gas outlet, 41, a water storage cavity, 45, a partition plate, 46, a first cavity, 47, a second cavity, 49, a drainage fan, 411, a first hollow reaction cylinder, 412, a second hollow reaction cylinder, 43, a waste water storage box, a first valve body, 422, a second valve body, 32, a desulfurization shell, 34, a desulfurizer adding mechanism, 321, an air inlet pipe, 322, an exhaust pipe, 323, a desulfurizer containing frame, 37, a discharge valve, 38, a material containing chamber, 382, the material poking device comprises a material poking cylinder 381, a material poking fork 39, a vibration discharging device 361, a rotary valve 36, a material discharging mechanism 343, a regulating valve 341 and a buffer chamber.
Detailed Description
The present invention is further described in detail below with reference to the drawings so that those skilled in the art can implement the invention with reference to the description.
As shown in fig. 1-4, the utility model provides a combined desulfurization and denitrification device, which comprises:
a combustion boiler 10, wherein flue gas generated after coal combustion is discharged from the combustion boiler 10;
a flue gas cooling unit 11 connected to the combustion boiler 10 via a first pipe (not shown) for cooling the exhausted flue gas;
an ammonia gas supply source 13 in which high-pressure ammonia gas is stored;
a denitration unit 14, which is connected with the flue gas cooling unit 11 and the ammonia gas supply source 13 through a three-way pipeline 12, and the cooled flue gas and ammonia gas are primarily mixed and reacted in the three-way pipeline 12 and are fully reacted in the denitration unit 14;
a dust removing unit 15 connected to the denitration unit 14 through a second pipeline (not shown) for capturing and removing dust from the solid particles;
a desulfurization unit 16, which is communicated with the dust removal unit 15 through a third pipeline (not shown in the figure) for performing the desulfurization operation of the flue gas, and the end of which is connected with a discharge chimney 17;
and the waste heat recovery unit 18 is positioned between the denitration unit 14 and the dust removal unit 15 and is used for recovering waste heat of the denitrated flue gas.
The waste heat recovery unit 18 is connected to an external air source (not shown in the figure), the recovered waste heat is used to heat air supplied by the external air source, the waste heat recovery unit 18 is connected to the combustion boiler 10 through a combustion-supporting pipeline (not shown in the figure), and the heated air enters the combustion boiler 10 through the combustion-supporting pipeline.
As an embodiment of the utility model, flue gas cooling unit 11 includes the cooling chamber that seal shell 20 constitutes, seal shell 20's inside is formed with cooling circuit 22, and simultaneously, seal shell 20's the left and right sides is formed with left side entry and right side entry respectively, the left side entry with be connected with intake pipe 23 and outlet duct 24 on the entry of right side respectively.
The air inlet pipe 23 is connected with the first pipeline in a sealing manner, and the air outlet pipe 24 is connected with the three-way pipeline 12 in a sealing manner.
Wherein the cooling circuit comprises a U-shaped cooling liquid passage 21 located in the cooling cavity, one end of the U-shaped cooling liquid passage 21 is communicated with a cooling liquid supply source (not shown in the figure), and the other end pumps the flowing cooling liquid back to the cooling liquid supply source through a pressurizing pump (not shown in the figure).
An auxiliary supply pipe connected vertically downwards is further connected to the lower portion of the U-shaped coolant passage 21, the auxiliary supply pipe includes a straight pipe section 25 and a bent pipe section 26 connected to the straight pipe section 25, and an auxiliary coolant supply source (not shown in the figure) is connected to the end of the bent pipe section 26.
As an embodiment of the present invention, the denitration unit 14 includes a denitration housing, and a flue gas inlet 44 and a flue gas outlet 48 are formed on the left side and the right side of the denitration housing respectively, wherein the flue gas inlet 44 is connected to the three-way pipe 12, and the flue gas outlet 48 is connected to the waste heat recovery unit 18; a water storage cavity 41 is installed at the upper part of the denitration shell, the water storage cavity 41 is arranged in a sealing manner, a partition plate 45 extends from the lower part of the water storage cavity 41, and the partition plate 45 partitions the interior of the denitration shell into a first cavity 46 and a second cavity 47; the lower end of the partition plate 45 is not connected to the denitration housing to form a drainage area, and a plurality of drainage fans 49 are arranged in the drainage area.
A left side spray pipe and a right side spray pipe are respectively formed at the left side and the right side of the lower part of the water storage cavity 41, wherein the left side spray pipe is positioned in the first chamber 46, and the right side spray pipe is positioned in the second chamber 47; the lower parts of the left water spray pipe and the right water spray pipe are respectively sleeved with a first hollow reaction cylinder 411 and a second hollow reaction cylinder 412.
The first hollow reaction cylinder 411 and the second hollow reaction cylinder 412 are both made of porous medium materials.
Wherein, the lower extreme of first hollow reaction section of thick bamboo 411 and second hollow reaction section of thick bamboo 412 extends respectively and is provided with first drain pipe and second drain pipe, the lower extreme of first drain pipe with the second drain pipe with waste water storage tank 43 that denitration casing lower part set up is connected, first drain pipe with install first valve body 421 and second valve body 422 on the second drain pipe respectively.
As an embodiment of the present invention, the desulfurization unit 16 includes a desulfurization shell 32, and a plurality of groups of desulfurizing agent adding mechanisms 34 are disposed on an upper portion of the desulfurization shell 32; an air inlet pipe 321 is formed at the lower part of the left side of the desulfurization shell 32, an exhaust pipe 322 is formed at the upper part of the right side of the desulfurization shell 32, the air inlet pipe 321 is connected with the third pipeline, and the exhaust pipe 322 is connected with the exhaust chimney 17; a multilayer desulfurizer holding frame 323 is provided inside the desulfurization housing 32.
A discharge valve 37 is arranged at the lower part of the desulfurization shell 32, a material containing chamber 38 is arranged at the lower end of the discharge valve 37, and a material stirring assembly extending into the material containing chamber 38 is arranged on the side surface of the material containing chamber 38; the material shifting assembly comprises a material shifting cylinder 382 positioned outside the material containing chamber 38, and a piston rod of the material shifting cylinder 382 extends into the material containing chamber 38 and is fixedly connected with a material shifting fork 381.
The lower end of the material containing chamber 38 is connected with a vibration discharger 39, and a discharging mechanism 36 comprising a rotary valve 361 is arranged on a lower pipeline of the vibration discharger 39.
The desulfurizer adding mechanism 34 includes a feeding hopper, an adjusting valve 343, and a buffer chamber 341 connected in sequence from top to bottom, wherein the buffer chamber is fixedly mounted at the upper end of the desulfurization housing 32.
The working principle of the combined desulfurization and denitrification device is as follows: the flue gas discharged from the combustion boiler is cooled and enters the denitration unit, the mixture of ammonia gas and the flue gas enters the denitration shell from the flue gas inlet, and at the moment, clear water in the water storage cavity is sprayed downwards, so that the flue gas and the ammonia gas are adsorbed on the first hollow reaction cylinder to obtain primary denitration, and further the flue gas passing through the first hollow reaction cylinder is further guided to the second hollow reaction cylinder by the guide fan to obtain further denitration; the denitrated product can be quickly discharged from the lower part; flue gas after accomplishing the denitration gets into the dust removal unit and is removed dust, later gets into the desulfurization unit, and in the desulfurization unit, the desulfurizer is added to the desulfurization casing in and is held on the desulfurizer holds the frame by the layering from upper portion, and flue gas holds the frame from the blast pipe row to discharging the chimney through multilayer desulfurizer from going into the trachea, and in this process, the sulphide obtains fully absorbing.
While the embodiments of the invention have been disclosed above, it is not limited to the applications listed in the description and the embodiments, which are fully applicable in all kinds of fields of application suitable for this invention, and further modifications may be readily made by those skilled in the art, and the invention is therefore not limited to the specific details and illustrations shown and described herein, without departing from the general concept defined by the claims and their equivalents.
Claims (10)
1. The utility model provides a combined desulfurization and denitrification device which characterized in that includes:
a combustion boiler (10), wherein flue gas generated after coal combustion is discharged from the combustion boiler (10);
a flue gas cooling unit (11) connected to the combustion boiler (10) via a first line for cooling the exhausted flue gas;
an ammonia gas supply source (13) in which high-pressure ammonia gas is stored;
a denitration unit (14) which is respectively connected with the flue gas cooling unit (11) and the ammonia gas supply source (13) through a three-channel pipeline (12), and the cooled flue gas and ammonia gas are preliminarily mixed and reacted in the three-channel pipeline (12) and are fully reacted in the denitration unit (14);
the dust removal unit (15) is connected with the denitration unit (14) through a second pipeline so as to capture and remove dust of solid particles;
a desulfurization unit (16) which is communicated with the dust removal unit (15) through a third pipeline and is used for finishing the desulfurization operation of the flue gas, and the tail end of the desulfurization unit is connected with a discharge chimney (17); and
and the waste heat recovery unit (18) is positioned between the denitration unit (14) and the dust removal unit (15) and is used for recovering waste heat of the denitrated flue gas.
2. The integrated desulfurization and denitrification apparatus according to claim 1, wherein the waste heat recovery unit (18) is connected to an external air source, the recovered waste heat is used for heating air supplied by the external air source, the waste heat recovery unit (18) is connected to the combustion boiler (10) through a combustion-supporting pipeline, and the heated air enters the combustion boiler (10) through the combustion-supporting pipeline.
3. The combined desulfurization and denitrification apparatus according to claim 1, wherein the flue gas cooling unit (11) comprises a cooling chamber formed by a sealed housing (20), a cooling loop (22) is formed inside the sealed housing (20), a left inlet and a right inlet are respectively formed at the left side and the right side of the sealed housing (20), and an air inlet pipe (23) and an air outlet pipe (24) are respectively connected to the left inlet and the right inlet.
4. The combined desulfurization and denitrification apparatus according to claim 3, wherein the gas inlet pipe (23) is hermetically connected to the first pipe, and the gas outlet pipe (24) is hermetically connected to the three-way pipe (12).
5. The combined desulfurization and denitrification apparatus according to claim 3, wherein the cooling circuit comprises a U-shaped cooling liquid passage (21) located in the cooling chamber, one end of the U-shaped cooling liquid passage (21) is communicated with a cooling liquid supply source, and the other end pumps the flowing cooling liquid back to the cooling liquid supply source through a pressurizing pump; the lower part of the U-shaped cooling liquid passage (21) is also connected with an auxiliary supply pipe which is vertically connected downwards, the auxiliary supply pipe comprises a straight pipe section (25) and a bent pipe section (26) connected with the straight pipe section (25), and the tail end of the bent pipe section (26) is connected with an auxiliary cooling liquid supply source.
6. The combined desulfurization and denitrification apparatus according to claim 1, wherein the denitrification unit (14) comprises a denitrification housing, and a flue gas inlet (44) and a flue gas outlet (48) are formed on the left side and the right side of the denitrification housing, respectively, wherein the flue gas inlet (44) is connected with the three-way pipe (12), and the flue gas outlet (48) is connected with the waste heat recovery unit (18); a water storage cavity (41) is installed at the upper part of the denitration shell, the water storage cavity (41) is arranged in a sealing mode, a partition plate (45) extends from the lower part of the water storage cavity (41), and the partition plate (45) partitions the inside of the denitration shell into a first cavity (46) and a second cavity (47); the lower end of the isolation plate (45) is not connected with the denitration shell to form a drainage area, and a plurality of drainage fans (49) are arranged in the drainage area.
7. The combined desulfurization and denitrification apparatus according to claim 6, wherein the lower portion of the water storage chamber (41) is formed with a left side spray pipe and a right side spray pipe on the left and right sides thereof, respectively, wherein the left side spray pipe is located in the first chamber (46), and the right side spray pipe is located in the second chamber (47); the lower parts of the left side water spray pipe and the right side water spray pipe are respectively sleeved with a first hollow reaction cylinder (411) and a second hollow reaction cylinder (412).
8. The combined desulfurization and denitrification apparatus according to claim 7, wherein the first hollow reaction cylinder (411) and the second hollow reaction cylinder (412) are both made of porous medium materials; wherein, the lower extreme of first hollow reaction section of thick bamboo (411) and second hollow reaction section of thick bamboo (412) extends respectively and is provided with first drain pipe and second drain pipe, first drain pipe with the lower extreme of second drain pipe with waste water storage tank (43) that denitration casing lower part set up are connected, first drain pipe with install first valve body (421) and second valve body (422) on the second drain pipe respectively.
9. The combined desulfurization and denitrification apparatus according to claim 1, wherein the desulfurization unit (16) comprises a desulfurization shell (32), and a plurality of groups of desulfurizing agent adding mechanisms (34) are arranged at the upper part of the desulfurization shell (32); an air inlet pipe (321) is formed at the lower part of the left side of the desulfurization shell (32), an exhaust pipe (322) is formed at the upper part of the right side of the desulfurization shell (32), the air inlet pipe (321) is connected with the third pipeline, and the exhaust pipe (322) is connected with the exhaust chimney (17); a plurality of layers of desulfurizer containing frames (323) are arranged inside the desulfurization shell (32);
a discharge valve (37) is arranged at the lower part of the desulfurization shell (32), a material containing chamber (38) is arranged at the lower end of the discharge valve (37), and a material stirring assembly extending into the material containing chamber (38) is arranged on the side surface of the material containing chamber (38); the material shifting assembly comprises a material shifting cylinder (382) positioned outside the material containing chamber (38), and a piston rod of the material shifting cylinder (382) extends into the material containing chamber (38) and is fixedly connected with a material shifting fork (381).
10. The combined desulfurization and denitrification apparatus according to claim 9, wherein a vibratory discharger (39) is connected to the lower end of the material containing chamber (38), and a discharge mechanism (36) comprising a rotary valve (361) is installed on the lower pipeline of the vibratory discharger (39);
the desulfurizer adding mechanism (34) comprises a discharging hopper, an adjusting valve (343) and a buffer chamber (341) which are sequentially connected from top to bottom, and the buffer chamber is fixedly installed at the upper end of the desulfurization shell (32).
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| CN201921407351.9U CN210645864U (en) | 2019-08-28 | 2019-08-28 | Combined desulfurization and denitrification device |
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| CN201921407351.9U CN210645864U (en) | 2019-08-28 | 2019-08-28 | Combined desulfurization and denitrification device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110465182A (en) * | 2019-08-28 | 2019-11-19 | 苏州仕净环保科技股份有限公司 | A kind of combined desulfurization and denitration device |
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2019
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110465182A (en) * | 2019-08-28 | 2019-11-19 | 苏州仕净环保科技股份有限公司 | A kind of combined desulfurization and denitration device |
| CN110465182B (en) * | 2019-08-28 | 2023-12-12 | 苏州仕净科技股份有限公司 | Combined desulfurization and denitrification device |
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Address after: 215000 No. 58, Jinrui Road, Taiping Street, Xiangcheng District, Suzhou City, Jiangsu Province Patentee after: Suzhou Shijing Technology Co.,Ltd. Address before: 215137 4th floor, 82 Jincheng Road, Taiping Street, Xiangcheng District, Suzhou City, Jiangsu Province Patentee before: SUZHOU SHIJING ENVIRONMENTAL TECHNOLOGY Co.,Ltd. |
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