CN113577995A - Flue gas denitration purifier for industrial furnace kiln - Google Patents

Flue gas denitration purifier for industrial furnace kiln Download PDF

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Publication number
CN113577995A
CN113577995A CN202110944403.1A CN202110944403A CN113577995A CN 113577995 A CN113577995 A CN 113577995A CN 202110944403 A CN202110944403 A CN 202110944403A CN 113577995 A CN113577995 A CN 113577995A
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CN
China
Prior art keywords
flue gas
transmission
rotary
absorption
fixed
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Withdrawn
Application number
CN202110944403.1A
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Chinese (zh)
Inventor
满毅
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Nanjing Vocational University of Industry Technology NUIT
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Nanjing Vocational University of Industry Technology NUIT
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Application filed by Nanjing Vocational University of Industry Technology NUIT filed Critical Nanjing Vocational University of Industry Technology NUIT
Priority to CN202110944403.1A priority Critical patent/CN113577995A/en
Publication of CN113577995A publication Critical patent/CN113577995A/en
Withdrawn legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/14—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 by absorption
    • B01D53/18—Absorbing units; Liquid distributors therefor
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
    • B01D53/14—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 by absorption
    • B01D53/18—Absorbing units; Liquid distributors therefor
    • B01D53/185—Liquid distributors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/40—Nitrogen compounds
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/40—Nitrogen compounds
    • B01D2257/402—Dinitrogen oxide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2257/00—Components to be removed
    • B01D2257/40—Nitrogen compounds
    • B01D2257/404—Nitrogen oxides other than dinitrogen oxide
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2258/00—Sources of waste gases
    • B01D2258/02—Other waste gases
    • B01D2258/0283—Flue gases
    • 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
    • Y02C—CAPTURE, STORAGE, SEQUESTRATION OR DISPOSAL OF GREENHOUSE GASES [GHG]
    • Y02C20/00—Capture or disposal of greenhouse gases
    • Y02C20/10—Capture or disposal of greenhouse gases of nitrous oxide (N2O)

Abstract

The invention discloses a flue gas denitration and purification device for an industrial furnace, which relates to the technical field of denitration equipment and comprises an absorption box filled with absorption liquid, wherein an air inlet pipe is arranged on the side wall of the absorption box; according to the invention, the transverse position of the rotary shaft relative to the absorption box can be adjusted through the translation transmission mechanism, and in the moving process of the rotary shaft, the transmission gear is meshed with the fixed rack, so that the transmission gear drives the rotary shaft to rotate, and further the rotary blade is driven to rotate, so that the absorption liquid sprayed out of the spraying disc and the flue gas are fully mixed, and the absorption effect of the nitrified substances in the flue gas is greatly improved.

Description

Flue gas denitration purifier for industrial furnace kiln
Technical Field
The invention relates to the technical field of denitration equipment, in particular to a flue gas denitration and purification device for an industrial furnace.
Background
Denitration mainly removes nitrated substances in flue gas, the substances enter the atmosphere to form acid rain, and the harm of the acid rain to human beings is very large, so that the national advocates environmental protection all the time, flue gas using coal as fuel contains the substances, particularly, the flue gas in a thermal power plant and a furnace kiln can cause the problems of plant exhaustion damage of buildings, water resource pollution and the like if not removed in the production process.
Although patent with publication number CN 212383443U discloses a flue gas denitration and purification device for industrial furnaces, the device comprises a base, an exhaust fan is fixedly installed on the left side of the top of the base, a gas collecting pipe is communicated with the left side of the exhaust fan, a first air supply pipe is communicated with the right side of the exhaust fan, a dissolving device is arranged on the top of the base and positioned on the right side of the exhaust fan, a water pump is fixedly installed on the bottom of the right side of the dissolving device and positioned on the top of the base, and a water stop valve is communicated with the left side of the water pump; however, in the using process of the device, the absorption liquid for absorbing the nitrates in the flue gas and the flue gas cannot be fully stirred and dispersed, so that the nitrates in the flue gas are not fully and thoroughly absorbed, and therefore, the flue gas denitration and purification device for the industrial furnace kiln is provided to solve the technical problems.
Disclosure of Invention
The invention aims to provide a flue gas denitration and purification device for an industrial furnace to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme:
the utility model provides a flue gas denitration purifier for industrial furnace kiln, is including the absorption box that is equipped with the absorption liquid, and the intake pipe is installed to the absorption box lateral wall, and the baffle is installed at the absorption box top, and the baffle upper shield is equipped with the cover body, still including setting up the transmission case on the cover body, is equipped with the rotary driving mechanism by motor drive in the transmission case, the last transmission of rotary driving mechanism is connected with the quill shaft, and the shower plate is installed to the quill shaft bottom, the last drive of quill shaft is connected with translation drive mechanism, last the rotation of rotating of being provided with vertical extension to the inside rotation axis of absorption box of rotation drive mechanism, a plurality of revolving vane are installed to the rotation axis lateral wall, be connected with between absorption box and the quill shaft and be used for carrying out the endless liquid circulation mechanism to the absorption liquid, be connected with between the absorption box and the cover body and be used for carrying out the endless gas circulation mechanism to the flue gas.
As a modified scheme of the invention: translation drive mechanism all is equipped with the driving rack with it meshing including fixed cover at the epaxial rotating gear of quill, rotating gear both sides, two driving rack parallel arrangement, be fixed with cover block II on the driving rack, be fixed with cover block I on the cover block II, the rotation axis rotates and installs on cover block I.
As a modified scheme of the invention: the translation transmission mechanism further comprises a fixed rack fixed in the cover body, a transmission gear is coaxially fixed on the rotating shaft, and the transmission gear is meshed with the fixed rack.
As a modified scheme of the invention: the cover body is internally fixed with a guide rod which is arranged in parallel with the fixed rack, the sleeve block II is sleeved on the guide rod in a sliding manner, the partition plate is provided with a guide groove which is consistent with the sliding direction of the sleeve block II, and the rotating shaft vertically penetrates through the guide groove.
As a modified scheme of the invention: the rotary driving mechanism comprises a bevel gear I and a bevel gear II which are fixedly sleeved on the hollow shaft, and incomplete bevel gears which are alternately meshed and connected with the bevel gear I and the bevel gear II are rotatably arranged in the transmission case.
As a modified scheme of the invention: the liquid circulation mechanism comprises a water pump fixed on the cover body, a lifting pipe is installed at the inlet end of the water pump, one end, far away from the water pump, of the lifting pipe extends into the absorption box, a liquid inlet pipe is installed at the outlet end of the water pump, and the liquid inlet pipe is connected with the hollow shaft through a rotary joint.
As a modified scheme of the invention: the gas circulation mechanism comprises a gas pump fixed on the cover body, a circulation pipe I extending into the cover body is installed at the inlet end of the gas pump, and a circulation pipe II communicated with the absorption tank is installed at the outlet end of the gas pump.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the transverse position of the rotary shaft relative to the absorption box can be adjusted through the translation transmission mechanism, and in the moving process of the rotary shaft, the transmission gear is meshed with the fixed rack, so that the transmission gear drives the rotary shaft to rotate, and further the rotary blade is driven to rotate, so that the absorption liquid sprayed out of the spraying disc and the flue gas are fully mixed, and the absorption effect of the nitrified substances in the flue gas is greatly improved.
2. The rotary driving mechanism can drive the hollow shaft to alternately rotate clockwise and anticlockwise, the hollow shaft drives the rotary gear to realize the reciprocating sliding effect of the two transmission gears, further, the rotary shaft can automatically reciprocate transversely in the process of driving the rotary blade to rotate, and the absorption effect of the absorption liquid on smoke nitrified substances is greatly improved.
3. According to the invention, the liquid circulation mechanism can circulate the absorption liquid in the absorption box, the spraying disc realizes repeated spraying, and the gas recovery mechanism can circularly convey the flue gas which is not completely denitrated in the cover body to the inside of the absorption box, so that the thorough denitration of the flue gas is ensured.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the internal structure of FIG. 1 according to the present invention;
FIG. 3 is an enlarged view of portion A of FIG. 3 according to the present invention;
FIG. 4 is a partial schematic view of the present invention;
FIG. 5 is a schematic view of the internal structure of the transmission case of the present invention;
FIG. 6 is a partial schematic view of the present invention;
fig. 7 is a partial structural schematic diagram of the present invention.
In the figure: 1-absorption box, 2-air pump, 3-cover body, 4-transmission box, 5-motor, 6-water pump, 7-air inlet pipe, 8-lifting pipe, 9-liquid inlet pipe, 10-hollow shaft, 11-circulation pipe I, 12-bevel gear I, 13-circulation pipe II, 14-guide groove, 15-rotating blade, 16-rotating shaft, 17-partition board, 18-transmission gear, 19-set block I, 20-bevel gear II, 21-set block II, 22-guide rod, 23-fixed rack, 24-rotating gear, 25-spray disk, 26-incomplete bevel gear and 27-transmission rack.
Detailed Description
The technical scheme of the patent is further described in detail by combining the following specific embodiments:
it should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
In the present invention, terms such as "upper", "lower", "left", "right", "front", "rear", "vertical", "horizontal", "side", "bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only terms of relationships determined for convenience in describing structural relationships of the parts or elements of the present invention, and are not intended to refer to any parts or elements of the present invention, and are not to be construed as limiting the present invention.
Example 1
Referring to fig. 1-7, a flue gas denitration and purification device for an industrial furnace comprises an absorption box 1 filled with absorption liquid, an air inlet pipe 7 is installed on the side wall of the absorption box 1, a partition plate 17 is installed at the top of the absorption box 1, a cover body 3 is covered on the partition plate 17, a transmission box 4 arranged on the cover body 3 is further included, a rotary driving mechanism driven by a motor 5 is arranged in the transmission box 4, a hollow shaft 10 is connected to the rotary driving mechanism in a transmission manner, a spraying disc 25 is installed at the bottom of the hollow shaft 10, a translation transmission mechanism is connected to the hollow shaft 10 in a driving manner, a rotary shaft 16 vertically extending into the absorption box 1 is rotatably arranged on the translation transmission mechanism, a plurality of rotating blades 15 are installed on the side wall of the rotary shaft 16, a liquid circulation mechanism used for circulating the absorption liquid is connected between the absorption box 1 and the hollow shaft 10, and a gas circulation mechanism used for circulating the flue gas is connected between the absorption box 1 and the cover body 3.
The spraying disc 25 in the device sprays absorption liquid for absorbing the nitrified substances in the flue gas, the flue gas is conveyed to the inside of the absorption box 1 through the air inlet pipe 7, and the flue gas flows from bottom to top and is contacted with the absorption liquid flowing downwards, so that the absorption effect of the nitrified substances in the flue gas is realized.
The translation transmission mechanism comprises a rotary gear 24 fixedly sleeved on the hollow shaft 10, transmission racks 27 meshed with the rotary gear 24 are arranged on two sides of the rotary gear 24, the two transmission racks 27 are arranged in parallel, a sleeve block II21 is fixed on the transmission rack 27, a sleeve block I19 is fixed on the sleeve block II21, and the rotary shaft 16 is rotatably installed on the sleeve block I19.
When hollow shaft 10 is rotatory, hollow shaft 10 drive rotating gear 24 rotates, two driving rack 27 of rotating gear 24 drive slide, driving rack 27 drives set II21 and slides, set II21 drives set I19 and slides, the rotation axis 16 of connecting on the set I19 this moment slides, rotating vane 15 on the rotation axis 16 removes along with it, effectively accelerated the inside flue gas of absorption box 1 and the dispersion of the absorption liquid that sprays out from spraying disc 25, mix, the denitration effect of flue gas has been promoted greatly.
Further, the translation transmission mechanism further comprises a fixed rack 23 fixed in the cover body 3, a transmission gear 18 is coaxially fixed on the rotating shaft 16, the transmission gear 18 is meshed with the fixed rack 23, in the process that the sleeve block II21 drives the sleeve block I19 to move, the transmission gear 18 on the rotating shaft 16 moves, the transmission gear 18 is meshed with the fixed rack 23 for transmission, the transmission gear 18 drives the rotating shaft 16 to rotate, the rotating shaft 16 drives the rotating blades 15 to rotate, the mixing effect of the smoke in the absorption box 1 and the absorption liquid sprayed out from the spraying disc 25 is further improved, and the nitrified substances in the smoke are quickly absorbed.
And a guide rod 22 arranged in parallel with the fixed rack 23 is fixed in the cover body 3, the sleeve block II21 is sleeved on the guide rod 22 in a sliding manner, the partition plate 17 is provided with a guide groove 14 in the same sliding direction as the sleeve block II21, and the rotating shaft 16 vertically penetrates through the guide groove 14.
Through the arrangement, when the sleeve block II21 slides, the sleeve block II21 is guided and limited by the guide rod 22, and the linear movement of the rotating shaft 16 is guided and limited by the guide groove 14, so that the smoothness of the transmission process is ensured.
Example 2
On the basis of example 1, in addition, as a modification of the present invention: the rotary driving mechanism comprises a bevel gear I12 and a bevel gear II20 fixedly sleeved on the hollow shaft 10, and an incomplete bevel gear 26 alternately meshed and connected with the bevel gear I12 and the bevel gear II20 is rotatably arranged in the transmission case 4.
Through the arrangement, the starting motor 5 drives the incomplete bevel gear 26 to rotate, the incomplete bevel gear 26 is alternately in meshed connection with the bevel gear I12 and the bevel gear II20, the hollow shaft 10 rotates clockwise and anticlockwise alternately at the moment, further the rotating gear 24 rotates clockwise and anticlockwise alternately, the rotating shaft 16 can rotate and automatically reciprocate at the same time, the rotating dispersion range of the smoke and the absorption liquid is greatly expanded, and the smoke is promoted to be fully denitrated by the absorption liquid.
The liquid circulation mechanism of the device comprises a water pump 6 fixed on a cover body 3, a lifting pipe 8 is installed at the inlet end of the water pump 6, one end, far away from the water pump 6, of the lifting pipe 8 extends into an absorption box 1, a liquid inlet pipe 9 is installed at the outlet end of the water pump 6, and the liquid inlet pipe 9 is connected with a hollow shaft 10 through a rotary joint. The water pump 6 can circulate the absorption liquid in the absorption box 1, the absorption liquid enters the hollow shaft 10 through the lifting pipe 8 and the liquid inlet pipe 9 and is finally sprayed out from the spraying disc 25 repeatedly, and the cyclic utilization of the absorption liquid is guaranteed.
And gas circulation mechanism is including fixing the air pump 2 on the cover body 3, and circulating pipe I11 that extends to in the cover body 3 is installed to the entrance point of air pump 2, and circulating pipe II13 with the absorption box 1 intercommunication is installed to the exit end of air pump 2, and the flue gas of not complete denitration assembles in the cover body 3, and the flue gas circulation of this department is carried to the air pump 2 that sets up inside and the absorption liquid of absorption box 1 contact once more, has guaranteed abundant, the thorough denitration of flue gas.
In conclusion, the transverse position of the rotating shaft 16 relative to the absorption box 1 can be adjusted through the arranged translation transmission mechanism, in the moving process of the rotating shaft 16, the transmission gear 18 is meshed with the fixed rack 23, the transmission gear 18 drives the rotating shaft 16 to rotate, the rotating blades 15 are driven to rotate, absorption liquid sprayed from the spraying disc 25 and smoke are promoted to be fully mixed, and the absorption effect of the nitrified substances in the smoke is greatly improved.
According to the invention, the hollow shaft 10 can be driven to rotate clockwise and anticlockwise alternately by the arranged rotary driving mechanism, the hollow shaft 10 drives the rotary gear 24 to realize the reciprocating sliding effect of the two transmission gears 18, so that the rotary shaft 16 drives the rotary blades 15 to rotate, and the transverse automatic reciprocating motion can be realized, and the absorption effect of the absorption liquid on smoke nitrified substances is greatly improved.
According to the invention, the absorption liquid in the absorption box 1 can be circulated through the liquid circulation mechanism, the repeated spraying effect is realized through the spraying disc 25, and the gas recovery mechanism can circularly convey the flue gas which is not completely denitrated in the cover body 3 into the absorption box 1, so that the thorough denitration of the flue gas is ensured.
It should be noted that, although the present specification describes embodiments, each embodiment does not include only a single technical solution, and such description of the specification is only for clarity, and those skilled in the art should take the specification as a whole, and the technical solutions in the embodiments may be appropriately combined to form other embodiments understood by those skilled in the art, and the above embodiments only express the preferred embodiments of the technical solutions, and the description thereof is more specific and detailed, but not construed as limiting the scope of the claims of the technical solutions. It should be noted that, for those skilled in the art, various changes, modifications and substitutions can be made without departing from the spirit of the present invention, and these changes and substitutions belong to the protection scope of the present invention. The protection scope of this technical solution patent should be subject to the appended claims.

Claims (7)

1. The flue gas denitration and purification device for the industrial furnace comprises an absorption box (1) filled with absorption liquid, wherein an air inlet pipe (7) is installed on the side wall of the absorption box (1), a partition plate (17) is installed at the top of the absorption box (1), a cover body (3) is arranged on the upper cover of the partition plate (17), the flue gas denitration and purification device is characterized by further comprising a transmission box (4) arranged on the cover body (3), a rotary driving mechanism driven by a motor (5) is arranged in the transmission box (4), a hollow shaft (10) is connected to the rotary driving mechanism in a transmission manner, a spraying disc (25) is installed at the bottom of the hollow shaft (10), a translation transmission mechanism is connected to the hollow shaft (10) in a driving manner, a rotary shaft (16) vertically extending into the absorption box (1) is rotatably arranged on the translation transmission mechanism, a plurality of rotary blades (15) are installed on the side wall of the rotary shaft (16), and a liquid circulation mechanism used for circulating the absorption liquid is connected between the absorption box (1) and the hollow shaft (10), and a gas circulation mechanism for circulating the flue gas is connected between the absorption box (1) and the cover body (3).
2. The flue gas denitration and purification device for the industrial furnace or kiln as claimed in claim 1, wherein said translation transmission mechanism comprises a rotary gear (24) fixedly sleeved on the hollow shaft (10), two sides of the rotary gear (24) are respectively provided with a transmission rack (27) engaged with the rotary gear, two transmission racks (27) are arranged in parallel, a sleeve block II (21) is fixed on the transmission rack (27), a sleeve block I (19) is fixed on the sleeve block II (21), and the rotary shaft (16) is rotatably mounted on the sleeve block I (19).
3. The flue gas denitration and purification device for the industrial furnace kiln as claimed in claim 2, wherein said translation transmission mechanism further comprises a fixed rack (23) fixed in the housing (3), a transmission gear (18) is coaxially fixed on said rotation shaft (16), and the transmission gear (18) is engaged with the fixed rack (23).
4. The flue gas denitration and purification device for the industrial furnace or kiln as claimed in claim 2, wherein a guide rod (22) arranged in parallel with the fixed rack (23) is fixed in the hood body (3), the sleeve block II (21) is slidably sleeved on the guide rod (22), the partition plate (17) is provided with a guide groove (14) in the same direction as the sliding direction of the sleeve block II (21), and the rotating shaft (16) vertically penetrates through the guide groove (14).
5. The flue gas denitration and purification device for the industrial furnace kiln as claimed in claim 1, wherein the rotary driving mechanism comprises a bevel gear I (12) and a bevel gear II (20) fixedly sleeved on the hollow shaft (10), and the transmission case (4) is internally and rotatably provided with incomplete bevel gears (26) alternately engaged and connected with the bevel gear I (12) and the bevel gear II (20).
6. The flue gas denitration and purification device for the industrial furnace or kiln as claimed in claim 1, wherein the liquid circulation mechanism comprises a water pump (6) fixed on the cover body (3), a lifting pipe (8) is installed at an inlet end of the water pump (6), one end of the lifting pipe (8) far away from the water pump (6) extends into the absorption box (1), a liquid inlet pipe (9) is installed at an outlet end of the water pump (6), and the liquid inlet pipe (9) is connected with the hollow shaft (10) through a rotary joint.
7. The flue gas denitration and purification device for the industrial furnace kiln as claimed in claim 1, wherein the gas circulation mechanism comprises an air pump (2) fixed on the hood body (3), the inlet end of the air pump (2) is provided with a circulation pipe I (11) extending into the hood body (3), and the outlet end of the air pump (2) is provided with a circulation pipe II (13) communicated with the absorption tank (1).
CN202110944403.1A 2021-08-17 2021-08-17 Flue gas denitration purifier for industrial furnace kiln Withdrawn CN113577995A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202110944403.1A CN113577995A (en) 2021-08-17 2021-08-17 Flue gas denitration purifier for industrial furnace kiln

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202110944403.1A CN113577995A (en) 2021-08-17 2021-08-17 Flue gas denitration purifier for industrial furnace kiln

Publications (1)

Publication Number Publication Date
CN113577995A true CN113577995A (en) 2021-11-02

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CN202110944403.1A Withdrawn CN113577995A (en) 2021-08-17 2021-08-17 Flue gas denitration purifier for industrial furnace kiln

Country Status (1)

Country Link
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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116351229A (en) * 2023-03-14 2023-06-30 汇舸(南通)环保设备有限公司 Spray type desulfurization equipment

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116351229A (en) * 2023-03-14 2023-06-30 汇舸(南通)环保设备有限公司 Spray type desulfurization equipment
CN116351229B (en) * 2023-03-14 2023-10-17 汇舸(南通)环保设备有限公司 Spray type desulfurization equipment

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Application publication date: 20211102