CN111013312A - Waste gas revolve flow multi-stage treatment device - Google Patents
Waste gas revolve flow multi-stage treatment device Download PDFInfo
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- CN111013312A CN111013312A CN202010053548.8A CN202010053548A CN111013312A CN 111013312 A CN111013312 A CN 111013312A CN 202010053548 A CN202010053548 A CN 202010053548A CN 111013312 A CN111013312 A CN 111013312A
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- revolve
- bin
- air outlet
- pipe
- storehouse
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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
- B01D53/005—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 heat treatment
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D50/00—Combinations of methods or devices for separating particles from gases or vapours
- B01D50/60—Combinations of devices covered by groups B01D46/00 and B01D47/00
Abstract
The invention discloses a waste gas revolve flow multistage treatment device, which comprises a bottom bin, wherein a revolve flow spiral bin is arranged above the bottom bin, a revolve flow spiral bin is in a spiral shape, one end of the revolve flow spiral bin is provided with an air inlet pipeline, the other end of the revolve flow spiral bin is provided with an air outlet shell, the air outlet shell is arranged at the axial center position of the revolve flow spiral bin, the air outlet shell is externally connected with an air outlet pipeline, one end of the air inlet pipeline is connected with one end of the revolve flow spiral bin, the other end of the air inlet pipeline is provided with an air inlet pipe, the outer end of the air inlet pipe is provided with an air inlet pump; the air outlet pipeline is connected with an air outlet pipe, the air outlet pipe is arranged inside the bottom bin, an air outlet pump is arranged at the outer end of the air outlet pipe, and the air outlet pump is arranged at the other side of the bottom bin; revolve heating wires are arranged in the wall of the spiral bin. The invention carries out heating and volatilization treatment on toxic and harmful gases in the waste gas; the treated waste gas is input into the gas outlet pipe through the gas outlet pipeline, so that the efficiency of wet filtration treatment on the waste gas is greatly improved.
Description
Technical Field
The present invention relates to a multistage treatment apparatus, and more particularly to a multistage treatment apparatus for an exhaust revolve flow.
Background
The treatment of the exhaust gases should be carried out from two sides: firstly, the waste gas dust removal aiming at suspended granular pollutants; secondly, the control of purifying the gaseous pollutants by the waste gas of the gaseous pollutants is mainly to separate the pollutants from the waste gas by utilizing the differences of physicochemical properties such as solubility, adsorption saturation, dew point, selective chemical reaction and the like; or converting the contaminants into harmless or easily handled substances; basic methods for purifying exhaust gas include absorption, adsorption, condensation, catalytic conversion, and combustion. The treatment technology of atmospheric pollution is an important measure for protecting the atmospheric environment. Clean combustion technology is the general term for processing, combustion, conversion, pollution emission control and the like which reduce pollutant emission and improve fuel utilization efficiency in the combustion process. Sulfur dioxide, nitrogen oxides and smoke are the main atmospheric pollutants in China. Reduce the emission of sulfur dioxide, nitrogen oxides and smoke dust, and protect and improve the atmospheric environment. Not only is it very important. Clean coal combustion technology refers to the technology that coal can be purified before combustion to achieve the purposes of reducing pollution emission, improving efficiency in the combustion process of coal and reducing pollutant emission. Including changing fuel properties, improving combustion patterns, adjusting combustion conditions, and properly adding additives to control pollutant generation. The current exhaust gas tower is inconvenient to carry out heating treatment to waste gas, sprays filtration treatment inefficiency to waste gas, and is inconvenient to carry out wet infiltration filtration treatment, and filtration efficiency is low to waste gas.
Disclosure of Invention
The invention aims to solve the technical problems that the revolve flow spiral bin is convenient to heat waste gas, and toxic and harmful gases in the waste gas are heated and volatilized; the treated gas is conveniently discharged through the gas outlet shell; the treated waste gas is input into the gas outlet pipe through the gas outlet pipeline, and the waste gas revolve flow multi-stage treatment device greatly improves the efficiency of wet filtration treatment on the waste gas.
The invention is realized by the following technical scheme:
the waste gas revolve flow multi-stage treatment device comprises a bottom bin, wherein a revolve flow spiral bin is arranged above the bottom bin, a revolve flow spiral bin is in a spiral shape, one end of the revolve flow spiral bin is provided with an air inlet pipeline, the other end of the revolve flow spiral bin is provided with an air outlet shell, the air outlet shell is arranged at the central position of a shaft of the revolve flow spiral bin, the air outlet shell is externally connected with an air outlet pipeline, one end of the air inlet pipeline is connected with one end of the revolve flow spiral bin, the other end of the air inlet pipeline is provided with an air inlet pipe, the outer end of the air inlet pipe is provided with an air; the air outlet pipeline is connected with an air outlet pipe, the air outlet pipe is arranged inside the bottom bin, an air outlet pump is arranged at the outer end of the air outlet pipe, and the air outlet pump is arranged at the other side of the bottom bin; revolve heating wires are arranged in the wall of the spiral bin, a temperature controller is arranged at the top of the bottom bin, and the temperature controller is electrically connected with the heating wires; the middle part of outlet duct is equipped with the filtration storehouse, crosses the filtration storehouse and installs in the bottom storehouse, crosses the inside in filtration storehouse and is equipped with first filter layer and second filter layer, is equipped with the butt joint pipeline between the upper portion of first filter layer and second filter layer, and the bottom of first filter layer is equipped with the downcomer, and the downcomer is installed at the interior top in bottom storehouse, and the bottom of second filter layer is equipped with the drawing liquid pipe, and the lower extreme of drawing liquid pipe is equipped with the drawing liquid pump, and the interior bottom position in bottom storehouse is installed to the drawing liquid pump.
Further, the shape structure of first filter layer is the same with the second filter layer, and first filter layer is including filtering the cotton body, and the inside of filtering the cotton body is the cavity structure, and the inside packing of filtering the cotton body has activated carbon adsorption particle, and the internally mounted who filters the cotton body has the shower, and the surface of shower is equipped with the spray nozzle, and the shower is filled in activated carbon adsorption particle, and the outer end of spray nozzle is the free end, the inner intercommunication with the inside of shower of spray nozzle.
Furthermore, the inner surface of the revolve flow spiral bin is provided with a fixing plate, a plurality of filter membranes which are arranged in parallel are arranged at the position facing the external surface of the fixing plate, a buckling frame is arranged at the position facing the external surface of the fixing plate, the root part of each filter membrane is arranged on the buckling frame, and the outer end of each filter membrane is a free end; the filter membrane is inclined.
Further, the front part of the filter membrane is provided with a filter soft sheet.
Furthermore, the top surface of the bottom bin is provided with a support frame, and the revolve flow spiral bin is arranged on the support frame.
Furthermore, the outer side of the bottom bin is provided with a filter screen cover, the filter screen cover covers the air inlet pump, the filter screen cover comprises a cover body, the front of the cover body is provided with a filter screen, and a filter cavity is arranged inside the cover body.
Further, the inner peripheral surface of the cover body is an arc surface.
Furthermore, a liquid discharge pipe is arranged at the inner bottom of the filtering bin, the upper end of the liquid discharge pipe is installed at the inner bottom of the filtering bin, and the lower end of the liquid discharge pipe is a free end.
Furthermore, the liquid discharge pipe is inclined, and the diameter of the lower end of the liquid discharge pipe is larger than that of the upper end of the liquid discharge pipe.
Furthermore, the lower extreme of pipeline of giving vent to anger is equipped with the flowing back pump, and the outer end of intake pipe is connected with the scavenge pipe, and the lower extreme of scavenge pipe is equipped with the scavenging pump, and the outside position in end storehouse is equipped with the basin, and the scavenging pump is installed in the basin.
The invention has the beneficial effects that: the air inlet pump can pump the waste gas into the air inlet pipe, the air inlet pipe conveys the waste gas into the revolve flow spiral bin, the flow area of the waste gas is greatly increased by the spiral revolve flow spiral bin, the temperature controller realizes electric heating through the electric heating wire, the electric heating wire enables the revolve flow spiral bin to be subjected to electric heating treatment, the revolve flow spiral bin is used for conveniently heating the waste gas, and toxic and harmful gases in the waste gas are heated and volatilized; the treated gas is conveniently discharged through the gas outlet shell; the treated waste gas is input into the gas outlet pipe through the gas outlet pipeline, the purified water in the bottom bin is pumped into the second filter layer through the liquid pumping pipe, the purified water is pumped into the first filter layer through the butt joint pipeline by the second filter layer, and the first filter layer enables water drops to flow into the bottom bin through the liquid discharging pipe; through second filter layer and first filter layer can carry out the second grade filtration to the waste gas that crosses through in the filter storehouse and handle, improved the efficiency of carrying out wet filtration processing to waste gas greatly.
Drawings
For ease of illustration, the invention is described in detail by the following specific examples and figures.
Fig. 1 is a schematic view of a multistage processing apparatus for the flow of exhaust revolve according to the present invention.
Fig. 2 is a schematic structural diagram of the filter membrane of the present invention.
Fig. 3 is a schematic structural diagram of the first filter layer according to the present invention.
Fig. 4 is a schematic structural view of the filter mesh enclosure according to the present invention.
Detailed Description
The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that the advantages and features of the present invention can be more easily understood by those skilled in the art, and the scope of the present invention will be more clearly and clearly defined.
As shown in fig. 1 to 4, the waste gas revolve flow multi-stage treatment device comprises a bottom bin 1, a revolve flow spiral bin 2 is arranged above the bottom bin 1, the revolve flow spiral bin 2 is spiral, one end of the revolve flow spiral bin 2 is provided with an air inlet pipeline 3, the other end of the revolve flow spiral bin 2 is provided with an air outlet shell 4, the air outlet shell 4 is arranged at the axial center position of the revolve flow spiral bin 2, the air outlet shell 4 is externally connected with an air outlet pipeline 6, one end of the air inlet pipeline 3 is connected with one end of the revolve flow spiral bin 2, the other end of the air inlet pipeline 3 is provided with an air inlet pipe 5, the outer end of the air inlet pipe 5 is provided with an air inlet pump 10, and the air inlet; the air outlet pipeline 6 is connected with an air outlet pipe 7, the air outlet pipe 7 is installed inside the bottom bin 1, an air outlet pump 9 is arranged at the outer end of the air outlet pipe 7, and the air outlet pump 9 is installed at the other side of the bottom bin 1; revolve heating wires are arranged in the wall of the flow spiral bin 2, a temperature controller 19 is arranged at the top of the bottom bin 1, and the temperature controller 19 is electrically connected with the heating wires; the middle part of outlet duct 7 is equipped with filters storehouse 8, it installs in end storehouse 1 to filter storehouse 8, the inside of filtering storehouse 8 is equipped with first filter layer 12 and second filter layer 13, be equipped with butt joint pipeline 14 between the upper portion of first filter layer 12 and second filter layer 13, the bottom of first filter layer 12 is equipped with down liquid pipe 15, down liquid pipe 15 is installed at the interior top of end storehouse 1, the bottom of second filter layer 13 is equipped with liquid suction pipe 16, the lower extreme of liquid suction pipe 16 is equipped with drawing liquid pump 17, drawing liquid pump 17 installs the interior bottom position at end storehouse 1.
According to the revolve flow multi-stage treatment device for the waste gas, disclosed by the invention, the waste gas can be pumped into the gas inlet pipe 5 by the gas inlet pump 10, the waste gas is conveyed into the revolve flow spiral bin 2 by the gas inlet pipe 5, the flowing area of the waste gas is greatly increased by the spiral revolve flow spiral bin 2, the temperature controller 19 realizes electric heating through an electric heating wire, the revolve flow spiral bin 2 is subjected to electric heating treatment through the electric heating wire, the waste gas is conveniently heated through the revolve flow spiral bin 2, and toxic and harmful gases in the waste gas are heated and volatilized; the treated gas is conveniently discharged through the gas outlet shell 4; the treated waste gas is input into an air outlet pipe 7 through an air outlet pipeline 6, a liquid extracting pipe 16 pumps the purified water in the bottom bin 1 into a second filter layer 13 through an liquid extracting pump 17, the second filter layer 13 pumps the purified water into a first filter layer 12 through a butt joint pipeline 14, and the first filter layer 12 enables water to flow into the bottom bin 1 through a liquid descending pipe 15; through second filter layer 13 and first filter layer 12 can carry out the second grade filtration to the waste gas that flows through in filtering storehouse 8 and handle, improved the efficiency of carrying out wet filtration processing to waste gas greatly.
Preferably, the first filter layer 12 and the second filter layer 13 have the same shape and structure, the first filter layer 12 includes a filter cotton body 25, the inside of the filter cotton body 25 is a cavity structure, activated carbon adsorption particles 26 are filled in the filter cotton body 25, a spray pipe 27 is installed in the filter cotton body 25, a spray nozzle 28 is arranged on the surface of the spray pipe 27, the spray pipe 27 is filled in the activated carbon adsorption particles 26, the outer end of the spray nozzle 28 is a free end, and the inner end of the spray nozzle 28 is communicated with the inside of the spray pipe 27; make the purifying liquid carry and get into shower 27 through butt joint pipeline 14 and liquid suction pipe 16, shower 27 spouts wet to activated carbon adsorption granule 26 through spray nozzle 28, carries out wet filtration processing and physical filtration processing through activated carbon adsorption granule 26 to waste gas, has improved the efficiency of carrying out wet filtration processing to waste gas greatly.
Preferably, the revolve flow spiral bin 2 has a fixing plate 21 on its inner surface, the fixing plate 21 has a plurality of filter membranes 22 arranged in parallel at positions facing outward, the fixing plate 21 has a buckle frame 23 at positions facing outward, the root of the filter membrane 22 is mounted on the buckle frame 23, and the outer end of the filter membrane 22 is a free end; the filter membrane 22 is inclined; the front part of the filter membrane 22 is provided with a filter soft sheet 24; the fixing plate 21 is convenient for filtering the waste water flowing through the revolve flow spiral bin 2 through the filtering membrane 22.
Preferably, the top surface of the bottom bin 1 is provided with a support frame 20, and the revolve flow spiral bin 2 is arranged on the support frame 20; the revolve flow spiral bin 2 is supported and installed by a support frame 20.
Preferably, a filter screen 11 is arranged at the outer side of the bottom bin 1, the filter screen 11 covers the air intake pump 10, the filter screen 11 includes a cover body 29, a filter screen 30 is arranged on the front surface of the cover body 29, a filter cavity 31 is arranged inside the cover body 29, and the inner circumferential surface of the cover body 29 is an arc surface 32; the cover 29 pre-filters the exhaust gas pumped by the intake pump 10 through the filter screen 30.
Preferably, a liquid discharge pipe 18 is arranged at the inner bottom of the filtering bin 8, the upper end of the liquid discharge pipe 18 is arranged at the inner bottom of the filtering bin 8, and the lower end of the liquid discharge pipe 18 is a free end; discharge pipe 18 is inclined, and the diameter of the lower end of discharge pipe 18 is larger than that of the upper end; the waste liquid in the filter bin 8 is discharged outwards through a drain pipe 18.
Preferably, a liquid discharge pump 33 is arranged at the lower end of the air outlet pipeline 6, a cleaning pipe 34 is connected to the outer end of the air inlet pipe 5, a cleaning pump 35 is arranged at the lower end of the cleaning pipe 34, a water tank 36 is arranged at the outer side part of the bottom bin 1, and the cleaning pump 35 is installed in the water tank 36; basin 36 retrieves the waste liquid that fluid-discharge tube 18 discharged out and can stew the processing to the waste liquid, and in scavenge pipe 34 pumped the intake pipe 5 through scavenging pump 35 with the water in the basin 36, washed water cleaning process through intake pipe 5 to the inside of revolve spiral storehouse 2, improved the efficiency that washes water cleaning process to the inside of revolve spiral storehouse 2 greatly.
Preferably, the top of the bottom bin 1 is provided with a driving mechanism, the driving mechanism comprises a stepping motor 39 and a driven shaft 37, the driven shaft 37 is installed at the axial position of the end part of the spraying pipe 27, the upper end of the driven shaft 37 is provided with a driven gear 38, the stepping motor 39 is installed on the top of the bottom bin 1, the lower part of the stepping motor 39 is provided with a driving shaft 40, the lower end of the driving shaft 40 is sleeved with a driving gear 41, the driving gear 41 is meshed with the driven gear 38, the bottom of the driving gear 41 is axially provided with a positioning shaft 42, the positioning shaft 42 is fixed on a fixing plate 43, and the fixing plate 43; step motor 39 realizes rotating through drive shaft 40 control drive gear 41, and drive gear 41's rotation drives driven gear 38 and realizes rotating, and driven gear 38's rotation drives driven shaft 37 and realizes rotating, and driven shaft 37's rotation drives shower 27 and realizes rotating, carries out nimble rotation regulation to shower 27, has improved the efficiency of spraying the processing around greatly.
The above description is only an embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that are not thought of through the inventive work should be included in the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope defined by the claims.
Claims (10)
1. Waste gas revolve flows multistage processing apparatus, including end storehouse, the top in end storehouse is equipped with revolve and flows the spiral storehouse, and revolve flows the spiral storehouse and is the heliciform, and the one end that revolve flowed the spiral storehouse is equipped with inlet channel, and the other end that revolve flowed the spiral storehouse is equipped with out the casing, goes out the casing and installs the axle central point who flows the spiral storehouse at revolve and put its characterized in that: an air outlet pipeline is connected outside the air outlet shell, one end of the air inlet pipeline is connected with one end of the revolve flow spiral bin, an air inlet pipe is arranged at the other end of the air inlet pipeline, an air inlet pump is arranged at the outer end of the air inlet pipe, and the air inlet pump is arranged on one side of the bottom bin; the air outlet pipeline is connected with an air outlet pipe, the air outlet pipe is arranged inside the bottom bin, an air outlet pump is arranged at the outer end of the air outlet pipe, and the air outlet pump is arranged at the other side of the bottom bin;
revolve heating wires are arranged in the wall of the spiral bin, a temperature controller is arranged at the top of the bottom bin, and the temperature controller is electrically connected with the heating wires;
the middle part of outlet duct is equipped with the filtration storehouse, crosses the filtration storehouse and installs in the bottom storehouse, crosses the inside in filtration storehouse and is equipped with first filter layer and second filter layer, is equipped with the butt joint pipeline between the upper portion of first filter layer and second filter layer, and the bottom of first filter layer is equipped with the downcomer, and the downcomer is installed at the interior top in bottom storehouse, and the bottom of second filter layer is equipped with the drawing liquid pipe, and the lower extreme of drawing liquid pipe is equipped with the drawing liquid pump, and the interior bottom position in bottom storehouse is installed to the drawing liquid pump.
2. The multi-stage treatment device for the revolve flow of exhaust gas of claim 1, wherein: the shape structure of first filter layer and second filter layer is the same, and first filter layer is including filtering the cotton body, and the inside of filtering the cotton body is the cavity structure, and the inside packing of filtering the cotton body has activated carbon adsorption particle, filters the internally mounted of cotton body and has the shower, and the surface of shower is equipped with the spray nozzle, and the shower is filled in activated carbon adsorption particle, and the outer end of spray nozzle is the free end, the inner intercommunication with the inside of shower of spray nozzle.
3. The multi-stage treatment device for the revolve flow of exhaust gas of claim 1, wherein: revolve flow spiral cabin inner surface is equipped with fixed plate, fixed plate outward facing position is equipped with several parallel arranged filter membrane, fixed plate outward facing position is equipped with buckle frame, filter membrane root is installed on buckle frame, filter membrane outer end is free end; the filter membrane is inclined.
4. The multiple stage treatment device for revolve flow of exhaust gas according to claim 3, wherein: the front part of the filtering membrane is provided with a filtering soft sheet.
5. The multi-stage treatment device for the revolve flow of exhaust gas of claim 1, wherein: the top surface of the bottom bin is provided with a support frame, and the revolve flow spiral bin is arranged on the support frame.
6. The multi-stage treatment device for the revolve flow of exhaust gas of claim 1, wherein: the outside position of bottom storehouse is equipped with the filtration screen panel, filters the screen panel and covers the pump that admits air, filters the screen panel and includes the cover body, and the front of the cover body is equipped with the filter screen, and the inside of the cover body is equipped with the filter chamber.
7. The multiple stage treatment device for revolve flow of exhaust gas according to claim 6, wherein: the inner peripheral surface of the cover body is a cambered surface.
8. The multi-stage treatment device for the revolve flow of exhaust gas of claim 1, wherein: the inner bottom of the filtering bin is provided with a liquid discharge pipe, the upper end of the liquid discharge pipe is arranged at the inner bottom of the filtering bin, and the lower end of the liquid discharge pipe is a free end.
9. The multiple stage treatment device for revolve flow of exhaust gas according to claim 8, wherein: the liquid discharge pipe is inclined, and the diameter of the lower end of the liquid discharge pipe is larger than that of the upper end of the liquid discharge pipe.
10. The multi-stage treatment device for the revolve flow of exhaust gas of claim 1, wherein: the lower extreme of pipeline of giving vent to anger is equipped with the flowing back pump, and the outer end of intake pipe is connected with the scavenge pipe, and the lower extreme of scavenge pipe is equipped with the scavenging pump, and the outside position in end storehouse is equipped with the basin, and the scavenging pump is installed in the basin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010053548.8A CN111013312A (en) | 2020-01-17 | 2020-01-17 | Waste gas revolve flow multi-stage treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010053548.8A CN111013312A (en) | 2020-01-17 | 2020-01-17 | Waste gas revolve flow multi-stage treatment device |
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| Publication Number | Publication Date |
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| CN111013312A true CN111013312A (en) | 2020-04-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010053548.8A Withdrawn CN111013312A (en) | 2020-01-17 | 2020-01-17 | Waste gas revolve flow multi-stage treatment device |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040207102A1 (en) * | 2001-08-17 | 2004-10-21 | Yoshiaki Sugimori | Method of cooling high-temperature exhaust gas, apparatus therefor and combustion treatment equipment |
| CN208275213U (en) * | 2018-04-17 | 2018-12-25 | 许启超 | A kind of circulating exhaust gas treating tower in paper mill |
| CN109865403A (en) * | 2019-04-02 | 2019-06-11 | 杭州电子科技大学上虞科学与工程研究院有限公司 | A kind of printing exhaust gas spray-absorption processing unit |
| CN209005490U (en) * | 2018-10-30 | 2019-06-21 | 周丽萍 | A kind of emission-control equipment of industrial waste water purifying processing |
| CN109908710A (en) * | 2019-04-02 | 2019-06-21 | 杭州航航环保科技有限公司 | Environmental monitoring paper production factory waste gas purification apparatus |
| CN110314520A (en) * | 2019-08-02 | 2019-10-11 | 台州锐祥机械设备有限公司 | Acidic flue gas processing neutralizes device |
-
2020
- 2020-01-17 CN CN202010053548.8A patent/CN111013312A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20040207102A1 (en) * | 2001-08-17 | 2004-10-21 | Yoshiaki Sugimori | Method of cooling high-temperature exhaust gas, apparatus therefor and combustion treatment equipment |
| CN208275213U (en) * | 2018-04-17 | 2018-12-25 | 许启超 | A kind of circulating exhaust gas treating tower in paper mill |
| CN209005490U (en) * | 2018-10-30 | 2019-06-21 | 周丽萍 | A kind of emission-control equipment of industrial waste water purifying processing |
| CN109865403A (en) * | 2019-04-02 | 2019-06-11 | 杭州电子科技大学上虞科学与工程研究院有限公司 | A kind of printing exhaust gas spray-absorption processing unit |
| CN109908710A (en) * | 2019-04-02 | 2019-06-21 | 杭州航航环保科技有限公司 | Environmental monitoring paper production factory waste gas purification apparatus |
| CN110314520A (en) * | 2019-08-02 | 2019-10-11 | 台州锐祥机械设备有限公司 | Acidic flue gas processing neutralizes device |
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Application publication date: 20200417 |
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