CN110548367A - High-efficient nozzle that boats and ships desulfurization system used - Google Patents
High-efficient nozzle that boats and ships desulfurization system used Download PDFInfo
- Publication number
- CN110548367A CN110548367A CN201910696568.4A CN201910696568A CN110548367A CN 110548367 A CN110548367 A CN 110548367A CN 201910696568 A CN201910696568 A CN 201910696568A CN 110548367 A CN110548367 A CN 110548367A
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- China
- Prior art keywords
- liquid
- nozzle
- desulfurization system
- connecting seat
- sleeve
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Classifications
-
- 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
- B01D53/1456—Removing acid components
- B01D53/1481—Removing sulfur dioxide or sulfur trioxide
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B3/00—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements
- B05B3/02—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements
- B05B3/04—Spraying or sprinkling apparatus with moving outlet elements or moving deflecting elements with rotating elements driven by the liquid or other fluent material discharged, e.g. the liquid actuating a motor before passing to the outlet
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B7/00—Spraying apparatus for discharge of liquids or other fluent materials from two or more sources, e.g. of liquid and air, of powder and gas
- B05B7/02—Spray pistols; Apparatus for discharge
- B05B7/04—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge
- B05B7/0416—Spray pistols; Apparatus for discharge with arrangements for mixing liquids or other fluent materials before discharge with arrangements for mixing one gas and one liquid
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2252/00—Absorbents, i.e. solvents and liquid materials for gas absorption
- B01D2252/10—Inorganic absorbents
- B01D2252/103—Water
- B01D2252/1035—Sea water
-
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention belongs to the technical field of ship desulfurization, and particularly relates to a high-efficiency nozzle for a ship desulfurization system, which comprises a liquid accumulation barrel, wherein the left side wall of the liquid accumulation barrel is connected with a liquid inlet through a flange, the side wall of the liquid inlet is connected with an air inlet pipe through a flange, a rotating shaft is longitudinally arranged in the inner cavity of the liquid accumulation barrel, the upper end of the rotating shaft is connected with a supporting bearing in a shaft connection mode, the supporting bearing is installed at the upper end of the inner cavity of the liquid accumulation barrel through a shaft seat, a driving impeller is sleeved on the outer wall of the rotating shaft, the amount of entering seawater is small through the action of uniformly dispersing seawater, the atomization effect is good, and large-area contact smoke can be achieved, so that; through the cooperation between drive impeller, pivot, the support bearing etc. can make relative rotation between connecting seat, the hydrops bucket to can make the connecting seat drive drain pipe, go out the rotation of liquid shower nozzle, thereby can enlarge and spray the position, guarantee the homogeneity of spraying.
Description
Technical Field
The invention relates to the technical field of ship desulfurization, in particular to a high-efficiency nozzle for a ship desulfurization system.
Background
In world freight transportation, ocean transportation occupies a large proportion. The ocean cargo transportation has the characteristics of large traffic capacity, large transportation volume, low transportation cost, strong adaptability to cargos, low speed, high risk and the like. At present, more than two thirds of the total freight volume of international trade, 90% of the total freight volume of import and export goods in China are transported by ocean.
with the rapid increase of the number of transport ships, pollution and harm of pollutants discharged by ships to the atmospheric environment and the marine environment are becoming more and more serious. The tail gas discharged by the marine diesel engine mainly comprises sulfur dioxide SO2 and nitrogen oxide NO2, and the annual emission SO2 and NO2 of the marine tail gas respectively account for 13 percent and 15 percent of the total global emission according to the statistical data of the International Maritime Organization (IMO) in 2014. The related report also indicates that the air pollution caused by the ship exhaust gas accounts for about 5-11% of the total air pollution.
Since the tail gas discharged by ships contains a large amount of oxysulfide SO2, the emission of the oxysulfide causes serious atmospheric pollution, and the international society and regional organizations have laws and regulations for limiting the emission of the oxysulfide of the ships.
The flue gas generated by combustion is dedusted before seawater desulfurization, and a high-efficiency fiber or electrostatic precipitator is generally adopted and is arranged at the upstream of SO2 absorption equipment. The flue gas after dust removal enters the bottom of SO2 absorption equipment, flows through opposite direction with the seawater from top to bottom, and circulates once. The clean flue gases from the absorption plant are generally reheated before being discharged to prevent corrosion and to ensure sufficient lift height. The seawater after absorbing SO2 flows to a seawater treatment plant by gravity, is mixed with the rest seawater and is introduced with a proper amount of air.
The existing seawater desulfurization equipment is used for desulfurization, when the entering seawater is less, the seawater and the flue gas are easy to contact unevenly, the desulfurization effect is reduced, and the amount of the output flue gas is influenced when the seawater entering a house is too much, so that the efficiency is reduced.
Disclosure of Invention
the invention aims to provide a high-efficiency nozzle for a ship desulfurization system, which aims to solve the problems that in the process of desulfurization of the conventional seawater desulfurization equipment in the background art, when less seawater enters, the seawater and flue gas are not uniformly contacted easily, the desulfurization effect is reduced, and the amount of the output flue gas is influenced when too much seawater enters a room, so that the efficiency is reduced.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a high-efficient nozzle that boats and ships desulfurization system used, includes the hydrops bucket, there is the inlet through flange joint on the left side wall of hydrops bucket, there is the intake pipe through flange joint on the lateral wall of inlet, the inner chamber of hydrops bucket vertically is provided with the pivot, the last end coupling of pivot has support bearing, support bearing passes through the axle bed and installs the inner chamber upper end at the hydrops bucket, the drive impeller has been cup jointed on the outer wall of pivot, the outer wall bottom of pivot is cup jointed connecting sleeve, the equal fixedly connected with support arm of lateral wall about connecting sleeve, the inner chamber downside of hydrops bucket is provided with seal bearing, seal bearing's inner chamber downside is connected with the connecting seat, the bottom of connecting seat is provided with the sleeve pipe, the sheathed tube bottom is provided with the drain pipe, the connecting seat is the cavity connecting seat, and drain, The sleeve pipe intercommunication, the bottom and the inner wall fixed connection of cavity connecting seat of support arm, the bottom of drain pipe is connected with out the liquid shower nozzle.
Preferably, the position of the liquid inlet corresponds to the edge position of the driving impeller.
Preferably, the upper end of the liquid accumulation barrel is fixedly connected with a support frame through a screw, a sleeve is welded at the upper end of the support frame, and a support rod is transversely inserted into the sleeve.
Preferably, the upper end of the sleeve is screwed with a fastening screw, and the bottom of the fastening screw is supported on the upper surface of the support rod.
Preferably, the two ends of the supporting rod are connected with mounting plates through screws, and the mounting plates are connected with the inner wall of the desulfurization equipment through screws.
Preferably, the strut is a telescopic strut with adjustable length.
Preferably, the lower surface of the liquid outlet nozzle is in a downward convex arc surface shape, and the axis of the spray hole of the liquid outlet nozzle is vertical to the arc surface of the lower surface of the liquid outlet nozzle.
Preferably, the axis of the air inlet pipe and the axis of the liquid inlet form an acute angle of 30-60 degrees.
compared with the prior art, the invention has the beneficial effects that:
1) Through the action of uniformly dispersing seawater, the amount of the entering seawater is small, the atomization effect is good, and the flue gas can be contacted in a large area, so that the desulfurization effect can be improved;
2) Through the cooperation between drive impeller, pivot, the support bearing etc. can make relative rotation between connecting seat, the hydrops bucket to can make the connecting seat drive drain pipe, go out the rotation of liquid shower nozzle, thereby can enlarge and spray the position, guarantee the homogeneity of spraying.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the internal structure of the liquid collecting tank according to the present invention;
FIG. 3 is a schematic view of the connection between the shaft and the driving impeller and the connecting sleeve according to the present invention.
In the figure: the device comprises a liquid accumulation barrel 1, a liquid inlet 2, an air inlet pipe 3, a rotating shaft 4, a supporting bearing 5, a driving impeller 6, a connecting sleeve 7, a supporting arm 8, a connecting seat 9, a sealing bearing 10, a sleeve 11, a liquid outlet pipe 12, a liquid outlet nozzle 13, a supporting frame 14, a sleeve 15, a supporting rod 16 and a mounting plate 17.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
in the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.
The flue gas generated by combustion is dedusted before seawater desulfurization, and a high-efficiency fiber or electrostatic precipitator is generally adopted and is arranged at the upstream of SO2 absorption equipment. The flue gas after dust removal enters the bottom of SO2 absorption equipment, flows through opposite direction with the seawater from top to bottom, and circulates once. The clean flue gases from the absorption plant are generally reheated before being discharged to prevent corrosion and to ensure sufficient lift height. The seawater after absorbing SO2 flows to a seawater treatment plant by gravity, is mixed with the rest seawater and is introduced with a proper amount of air.
Sulfur dioxide in the flue gas is absorbed by seawater and reacts with oxygen to generate sulfate ions and hydrogen ions, and the pH value of the seawater is reduced due to the increase of the concentration of the hydrogen ions; on the other hand, the large amount of carbonate ions in the seawater reacts with hydrogen ions to generate carbon dioxide and water, SO that the acidification effect caused by SO2 absorbed by the seawater is counteracted, the pH value is recovered to be normal, and the generated carbon dioxide is partially dissolved in the water.
The seawater desulfurization method discharges the used seawater back to the sea, which is an effective way for solving the roundabout pollution of sulfides. Natural seawater is rich in sulphur, on average 1kg per ton of seawater, and is mostly present in seawater in the form of sulphate, which corresponds to a layer of pure sulphur of about 1.7m thickness on all oceans. Natural seawater is alkaline and contains an excess of calcium carbonate and sodium carbonate, which make it sufficiently capable of absorbing and neutralizing SO 2.
Referring to fig. 1-3, the present invention provides a technical solution: a high-efficiency nozzle for a ship desulfurization system comprises a liquid accumulation barrel 1, wherein the left side wall of the liquid accumulation barrel 1 is connected with a liquid inlet 2 through a flange, the side wall of the liquid inlet 2 is connected with an air inlet pipe 3 through a flange, the air inlet pipe 3 is connected with a high-pressure air pump, the liquid inlet 2 is connected with seawater through a water pump, the liquid inlet 2 is used for inputting seawater, and the seawater is blown by high-pressure air through the high-pressure air pump to flow quickly, so that the sprayed seawater is relatively uniform and has relatively high spraying force;
A rotating shaft 4 is longitudinally arranged in an inner cavity of the liquid accumulation barrel 1, the upper end of the rotating shaft 4 is connected with a supporting bearing 5 in a shaft coupling mode, the supporting bearing 5 is installed at the upper end of the inner cavity of the liquid accumulation barrel 1 through a shaft seat, a driving impeller 6 is sleeved on the outer wall of the rotating shaft 4, the position of the liquid inlet 2 corresponds to the edge position of the driving impeller 6, seawater blown out at high pressure impacts the edge position of the driving impeller 6 to enable the driving impeller 6 to rotate, the driving impeller 6 drives the lower part of the impeller to rotate through the rotating shaft 4, and therefore output high-pressure seawater can be sprayed;
the bottom end of the outer wall of the rotating shaft 4 is fixedly sleeved with a connecting sleeve 7, the left side wall and the right side wall of the connecting sleeve 7 are fixedly connected with support arms 8, a sealing bearing 10 is arranged on the lower side of an inner cavity of the liquid accumulation barrel 1, the lower side of the inner cavity of the sealing bearing 10 is connected with a connecting seat 9, a sleeve 11 is arranged at the bottom of the connecting seat 9, a liquid outlet pipe 12 is arranged at the bottom of the sleeve 11, the connecting seat 9 can rotate relative to the liquid accumulation barrel 1 through the connecting action of the sealing bearing 10, meanwhile, the sealing bearing 10 has a sealing action, a sealing cavity is formed between the liquid accumulation barrel 1 and the connecting seat 9;
Connecting seat 9 is the cavity connecting seat, and drain pipe 12 and cavity connecting seat, sleeve pipe 11 intercommunication, the bottom of support arm 8 and the inner wall fixed connection of cavity connecting seat, and the bottom of drain pipe 12 is connected with out liquid shower nozzle 13, through the joint action of support arm 8 for pivot 4 can with connecting seat 9 fixed connection, thereby connecting seat 9 can drive in pivot 4 and rotate and the rotation effect.
The upper end of hydrops bucket 1 passes through screw fixedly connected with support frame 14, and the welding of the upper end of support frame 14 has sleeve pipe 15, and it has branch 16 to transversely peg graft in the sleeve pipe 15, through the effect of branch 16, can play the effect of connecting at sweetener and connect.
the upper end of the sleeve 15 is screwed with a fastening screw, the bottom of the fastening screw is supported on the upper surface of the support rod 16, and the position of the support rod 16 is fixed through the screwing and pressing effect of the fastening screw, so that the support rod 16 cannot move, and the connection and fastening effect is kept.
The both ends of branch 16 all are connected with mounting panel 17 through the screw, and mounting panel 17 passes through the inner wall connection of screw with sweetener, and mounting panel 17 is connected on sweetener's inner wall.
The support rod 16 is a telescopic support rod (not shown in the figure) with adjustable length, and the design mode of the telescopic support rod with adjustable length can be suitable for desulfurization equipment with different widths, has a wide application range, and can be suitable for desulfurization equipment with different inner diameters.
The lower surface of the liquid outlet nozzle 13 is in a downward convex arc surface shape, and the axis of the spray hole of the liquid outlet nozzle 13 is vertical to the arc surface of the lower surface of the liquid outlet nozzle 13, so that the spray hole is in a divergent shape, the sprayed seawater is more uniform, and the spray surface is wide.
The acute angle formed by the axis of the air inlet pipe 3 and the axis of the liquid inlet 2 is 30-60 degrees.
The application comprises the following steps: the mounting plate 17 is fixedly connected in the hollow cylindrical barrel through a screw, and the smoke is discharged through the hollow cylindrical barrel, so that the hollow cylindrical barrel is vertically placed, the liquid outlet spray head 13 faces the lower side, the smoke is upward from the lower side of the hollow cylindrical barrel, and the discharging direction is opposite to the liquid outlet spray head 13;
Sea water and high-pressure air are input through the liquid inlet 2 and the air inlet pipe 3, the sea water is output and sprayed on the driving impeller 6 and drives the connecting seat 9, the liquid outlet pipe 12 and the liquid outlet nozzle 13 to rotate, so that the sea water is uniformly sprayed out to be in contact with the flue gas for desulfurization, the desulfurized sea water is discharged from the lower side of the hollow cylindrical barrel, and the desulfurized flue gas and the entering high-pressure air are output through the upper side of the hollow cylindrical barrel.
While there have been shown and described the fundamental principles and essential features of the invention and advantages thereof, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof; the present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein, and any reference signs in the claims are not intended to be construed as limiting the claim concerned.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. The utility model provides a high-efficient nozzle that boats and ships desulfurization system used, includes hydrops bucket (1), there is inlet (2), its characterized in that through flange joint on the left side wall of hydrops bucket (1): the side wall of the liquid inlet (2) is connected with an air inlet pipe (3) through a flange, the inner cavity of the liquid accumulation barrel (1) is longitudinally provided with a rotating shaft (4), the upper end of the rotating shaft (4) is connected with a supporting bearing (5) in a shaft mode, the supporting bearing (5) is installed at the upper end of the inner cavity of the liquid accumulation barrel (1) through a shaft seat, the outer wall of the rotating shaft (4) is sleeved with a driving impeller (6), the bottom end of the outer wall of the rotating shaft (4) is fixedly connected with a connecting sleeve (7), the left side wall and the right side wall of the connecting sleeve (7) are both fixedly connected with supporting arms (8), the lower side of the inner cavity of the liquid accumulation barrel (1) is provided with a sealing bearing (10), the lower side of the inner cavity of the sealing bearing (10) is connected with a connecting seat (9), the bottom, the connecting seat (9) is a hollow connecting seat, the liquid outlet pipe (12) is communicated with the hollow connecting seat and the sleeve (11), the bottom end of the support arm (8) is fixedly connected with the inner wall of the hollow connecting seat, and the bottom end of the liquid outlet pipe (12) is connected with a liquid outlet nozzle (13).
2. The high efficiency nozzle for a desulfurization system for ships according to claim 1, wherein: the position of the liquid inlet (2) corresponds to the edge position of the driving impeller (6).
3. The high efficiency nozzle for a desulfurization system for ships according to claim 1, wherein: the upper end of the liquid accumulation barrel (1) is fixedly connected with a support frame (14) through a screw, a sleeve (15) is welded at the upper end of the support frame (14), and a support rod (16) is transversely inserted into the sleeve (15).
4. The high efficiency nozzle for a desulfurization system for ships according to claim 3, wherein: the upper end of the sleeve (15) is screwed with a fastening screw, and the bottom of the fastening screw is supported on the upper surface of the support rod (16).
5. The high efficiency nozzle for a desulfurization system for ships according to claim 3, wherein: the both ends of branch (16) all have mounting panel (17) through the screw connection, mounting panel (17) are connected through the inner wall of screw with sweetener.
6. the high efficiency nozzle for a desulfurization system for ships according to claim 3, wherein: the supporting rod (16) is a telescopic supporting rod with adjustable length.
7. the high efficiency nozzle for a desulfurization system for ships according to claim 3, wherein: the lower surface of the liquid outlet nozzle (13) is in a downward convex arc surface shape, and the axis of the spray hole of the liquid outlet nozzle (13) is vertical to the arc surface of the lower surface of the liquid outlet nozzle (13).
8. The high efficiency nozzle for a desulfurization system for ships according to claim 1, wherein: the acute angle formed by the axis of the air inlet pipe (3) and the axis of the liquid inlet (2) is 30-60 degrees.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910696568.4A CN110548367A (en) | 2019-07-30 | 2019-07-30 | High-efficient nozzle that boats and ships desulfurization system used |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910696568.4A CN110548367A (en) | 2019-07-30 | 2019-07-30 | High-efficient nozzle that boats and ships desulfurization system used |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110548367A true CN110548367A (en) | 2019-12-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910696568.4A Pending CN110548367A (en) | 2019-07-30 | 2019-07-30 | High-efficient nozzle that boats and ships desulfurization system used |
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| CN (1) | CN110548367A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112755777A (en) * | 2021-01-06 | 2021-05-07 | 南京东鸿连环环境技术有限公司 | Dust removal SOx/NOx control integration processing apparatus |
| CN114210494A (en) * | 2021-12-07 | 2022-03-22 | 康士得（安徽）家具有限公司 | Paint spraying system of furniture processing usefulness |
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| CN2843626Y (en) * | 2005-10-26 | 2006-12-06 | 周华松 | Rotary connector of shower nozzle |
| CN204503388U (en) * | 2015-03-25 | 2015-07-29 | 宋福香 | A kind of humidifying desulphurization plant ejecting device |
| US20160367931A1 (en) * | 2013-12-30 | 2016-12-22 | Beijing China Science Purification Eco-Technologi- Es Co., Ltd | An automatic high-speed rotary atomizing device and a fire extinguishing method by using the same |
| CN206253247U (en) * | 2016-11-04 | 2017-06-16 | 张敏 | A kind of rotary shower spray head |
| CN207822788U (en) * | 2018-01-18 | 2018-09-07 | 济南华阳炭素有限公司 | A kind of device improving desulfurizing tower desulfuration efficiency |
-
2019
- 2019-07-30 CN CN201910696568.4A patent/CN110548367A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2843626Y (en) * | 2005-10-26 | 2006-12-06 | 周华松 | Rotary connector of shower nozzle |
| US20160367931A1 (en) * | 2013-12-30 | 2016-12-22 | Beijing China Science Purification Eco-Technologi- Es Co., Ltd | An automatic high-speed rotary atomizing device and a fire extinguishing method by using the same |
| CN204503388U (en) * | 2015-03-25 | 2015-07-29 | 宋福香 | A kind of humidifying desulphurization plant ejecting device |
| CN206253247U (en) * | 2016-11-04 | 2017-06-16 | 张敏 | A kind of rotary shower spray head |
| CN207822788U (en) * | 2018-01-18 | 2018-09-07 | 济南华阳炭素有限公司 | A kind of device improving desulfurizing tower desulfuration efficiency |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112755777A (en) * | 2021-01-06 | 2021-05-07 | 南京东鸿连环环境技术有限公司 | Dust removal SOx/NOx control integration processing apparatus |
| CN114210494A (en) * | 2021-12-07 | 2022-03-22 | 康士得（安徽）家具有限公司 | Paint spraying system of furniture processing usefulness |
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Application publication date: 20191210 |