CN212091336U - Dangerous waste incineration flue gas ultralow emission system - Google Patents
Dangerous waste incineration flue gas ultralow emission system Download PDFInfo
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- CN212091336U CN212091336U CN202020392539.7U CN202020392539U CN212091336U CN 212091336 U CN212091336 U CN 212091336U CN 202020392539 U CN202020392539 U CN 202020392539U CN 212091336 U CN212091336 U CN 212091336U
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- flue gas
- deacidification
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 56
- 239000003546 flue gas Substances 0.000 title claims abstract description 56
- 238000004056 waste incineration Methods 0.000 title claims abstract description 12
- 239000007789 gas Substances 0.000 claims abstract description 34
- 239000002351 wastewater Substances 0.000 claims abstract description 34
- 230000007246 mechanism Effects 0.000 claims abstract description 31
- 239000002912 waste gas Substances 0.000 claims abstract description 23
- 238000000746 purification Methods 0.000 claims abstract description 20
- 239000000428 dust Substances 0.000 claims description 33
- 239000003513 alkali Substances 0.000 claims description 25
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 24
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 22
- 238000005406 washing Methods 0.000 claims description 22
- 238000010791 quenching Methods 0.000 claims description 20
- 230000000171 quenching effect Effects 0.000 claims description 20
- 238000001816 cooling Methods 0.000 claims description 15
- 239000007788 liquid Substances 0.000 claims description 10
- 238000002347 injection Methods 0.000 claims description 8
- 239000007924 injection Substances 0.000 claims description 8
- 238000001035 drying Methods 0.000 claims description 5
- 239000002699 waste material Substances 0.000 claims description 5
- 238000004140 cleaning Methods 0.000 claims description 3
- 239000002245 particle Substances 0.000 claims description 3
- 230000002087 whitening effect Effects 0.000 claims description 3
- 238000005086 pumping Methods 0.000 claims description 2
- 238000005507 spraying Methods 0.000 claims description 2
- 239000002920 hazardous waste Substances 0.000 abstract description 7
- 230000009467 reduction Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 15
- 230000008569 process Effects 0.000 description 11
- 229910052799 carbon Inorganic materials 0.000 description 6
- 230000007613 environmental effect Effects 0.000 description 6
- 239000000779 smoke Substances 0.000 description 6
- HGUFODBRKLSHSI-UHFFFAOYSA-N 2,3,7,8-tetrachloro-dibenzo-p-dioxin Chemical compound O1C2=CC(Cl)=C(Cl)C=C2OC2=C1C=C(Cl)C(Cl)=C2 HGUFODBRKLSHSI-UHFFFAOYSA-N 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 229910001385 heavy metal Inorganic materials 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 3
- 239000002253 acid Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 239000003344 environmental pollutant Substances 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000010813 municipal solid waste Substances 0.000 description 2
- 231100000719 pollutant Toxicity 0.000 description 2
- 239000010865 sewage Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 1
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000009690 centrifugal atomisation Methods 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000007791 dehumidification Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000000703 high-speed centrifugation Methods 0.000 description 1
- 229910000040 hydrogen fluoride Inorganic materials 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- -1 particulate matters Substances 0.000 description 1
- 239000004810 polytetrafluoroethylene Substances 0.000 description 1
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000005201 scrubbing Methods 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- XTQHKBHJIVJGKJ-UHFFFAOYSA-N sulfur monoxide Chemical class S=O XTQHKBHJIVJGKJ-UHFFFAOYSA-N 0.000 description 1
- 229910052815 sulfur oxide Inorganic materials 0.000 description 1
- 231100000331 toxic Toxicity 0.000 description 1
- 230000002588 toxic effect Effects 0.000 description 1
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Abstract
The utility model provides an ultralow emission system of hazardous waste incineration flue gas, which comprises a flue gas purification mechanism and a waste water utilization mechanism, wherein the waste water utilization mechanism can convey workshop waste water into the flue gas purification mechanism for waste water utilization; meanwhile, the flue gas purification mechanism can purify high-temperature waste gas into clean tail gas and discharge the clean tail gas into air, so that the current environment-friendly purpose of energy saving and emission reduction is achieved.
Description
Technical Field
The utility model relates to an environmental protection equipment makes the field, especially relates to a dangerous useless ultralow discharge system of burning flue gas.
Background
With the development of science and technology, waste incineration power generation is widely applied as a harmless, quantitative-reduction and resource treatment method. However, when garbage is burned, a lot of toxic and harmful substances are generated, and a garbage disposal plant is generally used for disposing waste gas through activated carbon flue gas purification equipment to prevent serious pollution to the environment. However, when hazardous wastes are incinerated and treated, secondary pollution is caused, that is, in the flue gas generated in the incineration process of the hazardous wastes, the flue gas generated in the incineration of the solid wastes contains pollutants such as particulate matters, acid gases (hydrogen oxide, sulfur oxides, hydrogen fluoride, and nitrogen oxides), heavy metals, and dioxin. In order to avoid the pollutants from entering human living environment, the flue gas must be subjected to deep purification treatment and discharged after reaching standards. At present, environmental protection requirements and hazardous waste incineration smoke emission standards are more and more strict, the traditional smoke treatment technology causes waste of a large amount of water resources and the like in the treatment process, the environmental protection requirements are hardly met, secondary pollution is easily generated, and improvement is needed to realize the aims of energy saving and emission reduction.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is that traditional flue gas processing technology causes the waste of a large amount of water resources etc. in the processing procedure, has hardly satisfied the environmental protection demand, and produces secondary pollution easily, needs to improve to realize the target that the row falls in the energy-conserving, the utility model provides a dangerous useless burning flue gas ultralow discharge system solves above-mentioned problem.
The utility model provides a technical scheme that its technical problem adopted is: the ultralow emission system for the hazardous waste incineration flue gas comprises a flue gas purification mechanism and a waste water utilization mechanism, wherein the waste water utilization mechanism can convey workshop waste water into the flue gas purification mechanism for waste water utilization; the flue gas purification mechanism can purify high-temperature waste gas into clean tail gas and discharge the clean tail gas into the air.
Further: the flue gas purification mechanism comprises a quenching deacidification tower, a bag-type dust remover, a wet deacidification washing tower and a whitening heat exchanger which are sequentially arranged along the flow direction of flue gas, and a high-temperature flue gas pipeline is arranged at the air inlet of the quenching deacidification tower; the gas outlet of the quenching deacidification tower is communicated with the gas inlet of the bag-type dust remover; the gas outlet of the bag-type dust remover is communicated with the gas inlet of the wet deacidification washing tower; the gas outlet of the wet deacidification washing tower is communicated with the gas inlet of the de-whitening heat exchanger, the gas outlet of the de-whitening heat exchanger is a clean gas discharge outlet, and the quenching deacidification tower is used for performing primary deacidification, quenching and drying on high-temperature flue gas to form low-temperature waste gas; the bag-type dust collector is used for collecting dust in waste gas; an alkali liquor circulating tank is arranged in the wet deacidification washing tower and is used for carrying out secondary deacidification on the waste gas; the de-whitening heat exchanger is used for dehumidifying and de-whitening the waste gas.
Further: the waste water utilization mechanism comprises a waste water pipeline and an alkaline water pipeline, the alkaline water pipeline is communicated with an alkaline liquid circulating pool in the wet deacidification washing tower and can convey the waste alkaline water in a workshop into the alkaline liquid circulating pool; the top of the rapid cooling deacidification tower is provided with a water inlet, the wastewater pipeline is communicated with the water inlet, and cleaning wastewater in a workshop can be conveyed into the rapid cooling deacidification tower.
Further: an alkali liquor pipeline is arranged between the bottom of the alkali liquor circulating tank and the water inlet, and the alkali liquor pipeline can be used for pumping out the alkali liquor in the alkali liquor circulating tank and spraying the alkali liquor into the quenching deacidification tower.
Further: an active carbon injection device is arranged between the quenching deacidification tower and the bag-type dust remover, and the active carbon injection device can blow active carbon particles into the bag-type dust remover.
The utility model has the advantages that the utility model relates to a hazardous waste incineration flue gas ultra-low emission system is provided with a flue gas purification mechanism and a waste water utilization mechanism, and the waste water utilization mechanism can convey the workshop waste water to the flue gas purification mechanism for waste water utilization; meanwhile, the flue gas purification mechanism can purify high-temperature waste gas into clean tail gas and discharge the clean tail gas into air, so that the current environment-friendly purpose of energy saving and emission reduction is achieved.
Drawings
The present invention will be further explained with reference to the drawings and examples.
FIG. 1 is the structure schematic diagram of the utility model relates to a dangerous useless incineration flue gas ultralow discharge system.
In the figure, 1, a quenching deacidification tower, 2, a bag-type dust remover, 3, a wet deacidification washing tower, 4, a white-removing heat exchanger, 5, a wastewater pipeline, 6, an alkaline water pipeline, 7, a water inlet, 8, an alkaline water pipeline, 9 and an activated carbon injection device.
Detailed Description
Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention. On the contrary, the embodiments of the invention include all changes, modifications and equivalents coming within the spirit and terms of the claims appended hereto.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", and the like, indicate orientations and positional relationships based on the orientations and positional relationships shown in the drawings, and are used only for convenience in describing and simplifying the present invention, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "connected" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art. In addition, in the description of the present invention, "a plurality" means two or more unless otherwise specified.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and the scope of the preferred embodiments of the present invention includes other implementations in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the embodiments of the present invention.
As shown in fig. 1, the utility model provides an ultralow emission system of hazardous waste incineration flue gas, which comprises a flue gas purification mechanism and a waste water utilization mechanism, wherein the waste water utilization mechanism can convey workshop waste water to the flue gas purification mechanism for waste water utilization; the flue gas purification mechanism can purify high-temperature waste gas into clean tail gas and discharge the clean tail gas into the air.
The flue gas purification mechanism comprises a quenching deacidification tower 1, a bag-type dust collector 2, a wet deacidification washing tower 3 and a whitening heat exchanger 4 which are sequentially arranged along the flow direction of flue gas, and a high-temperature flue gas pipeline is arranged at the air inlet of the quenching deacidification tower 1; the gas outlet of the quenching deacidification tower 1 is communicated with the gas inlet of the bag-type dust collector 2; the gas outlet of the bag-type dust collector 2 is communicated with the gas inlet of the wet deacidification washing tower 3; the gas outlet of the wet deacidification washing tower 3 is communicated with the gas inlet of the de-whitening heat exchanger 4, the gas outlet of the de-whitening heat exchanger 4 is a clean gas discharge outlet, and the quenching deacidification tower 1 is used for performing primary deacidification, quenching and drying on high-temperature flue gas to form low-temperature waste gas; the bag-type dust collector 2 is used for collecting dust in waste gas; an alkali liquor circulating tank is arranged in the wet deacidification washing tower 3 and is used for carrying out secondary deacidification on the waste gas; the de-whitening heat exchanger 4 is used for dehumidifying and de-whitening the exhaust gas.
High temperature waste gas gets into the rapid cooling deacidification tower 1 that high-speed centrifugal atomization device arranged earlier and carries out rapid cooling, deacidification, then through sack cleaner 2, carries out the collection of dust to the flue gas, carries out secondary deacidification washing through wet process deacidification scrubbing tower 3 again, gets rid of the residual acidic material in the flue gas once more, absolutely guarantees the deacidification effect of flue gas, and at last through taking off white heat exchanger 4 again, dehumidifies and heats the flue gas, reaches the purpose of getting rid of white cigarette.
The waste water utilization mechanism comprises a waste water pipeline 5 and an alkaline water pipeline 6, the alkaline water pipeline 6 is communicated with an alkaline liquid circulating pool in the wet deacidification washing tower 3, and can convey the waste alkaline water in a workshop to the alkaline liquid circulating pool; the top of the rapid cooling deacidification tower 1 is provided with a water inlet 7, the wastewater pipeline 5 is communicated with the water inlet 7, and cleaning wastewater in a workshop can be conveyed into the rapid cooling deacidification tower 1.
An alkali liquor pipeline 8 is arranged between the bottom of the alkali liquor circulating tank and the water inlet 7, and the alkali liquor pipeline 8 can pump out the alkali liquor in the alkali liquor circulating tank and spray the alkali liquor into the quenching deacidification tower 1.
An activated carbon injection device 9 is arranged between the quenching deacidification tower 1 and the bag-type dust remover 2, and the activated carbon injection device 9 can blow activated carbon particles into the bag-type dust remover 2.
High temperature flue gas from the rapid cooling deacidification tower top entry from the top down whirl and the horizontal direction radiation atomization of high speed centrifugation, the high-efficient collision of alkali lye fog that is close to nanometer grade granule mixes, collect deacidification + rapid cooling + dry "rapid cooling deacidification" as an organic whole simultaneously produces in the twinkling of an eye, through the rapid cooling deacidification, the residual "dry" flue gas of no liquid drop after the drying is sprayed into active carbon mixing adsorption operation again by active carbon injection apparatus 9 and gets into sack cleaner 2, the active carbon is at sack cleaner 2 surface deposition and is short-term dwell, continue to adsorb the heavy metal in the flue gas, dioxin, through such treatment process, the flue gas gets into acid index like: and the emission reaching the standard is finished under the condition that the HCL is within 6000mg/Nm 3.
The ash removal process of the bag-type dust collector 2 adopts a cyclic chamber-separated off-line pulse ash removal mode, wherein the ash removal process is that an ash removal controller sends a signal, firstly, a poppet valve of one bag chamber is closed to cut off the filtering air flow of the chamber, then, the pulse valve is opened, and 0.4-0.6 MPa compressed air is sprayed into the box within a very short time of 0.1-0.2 seconds. The compressed air expands at high speed in the box to make the filter bag produce high-frequency vibration deformation, and then the action of the reverse air flow is added to make the dust cake attached to the outer surface of the filter bag deform and fall off. After the dust is fully settled, the lift valve is opened, the chamber enters a filtering state again, and secondary dust raising of the dust generated after blowing and dust removal is avoided. After a certain time interval, the ash is removed from the next chamber in an off-line way, and the ash is removed by the chamber by chamber in a circulating way. Therefore, the dust remover has good dust removing effect and thorough dust removing, and can ensure the good working state of the dust remover for a long time. In addition, the sack all adopts the imported material of PTFE, guarantees the result of use.
The waste gas is further desulfurized by the wet deacidification washing tower 3 through the dilute alkali liquor, so that the emission of harmful substances in all the smoke reaches the requirement of ultra-low emission lower than the European Union standard, the waste water mixed dilute alkali liquor in the wet desulphurization washing process is extracted from the bottom part in the alkali liquor circulating pool and sprayed into the rapid cooling deacidification tower through the double proportion regulation technology, after the full reaction and drying are completed in the tower, all the gas, liquid and solid harmful substances are converted into stable solid substances and are perfectly collected, and the possibility that the heavy metal and dioxin in the circulating washing liquid are gradually gathered and discharged along with the sewage is avoided. Avoids the harm of heavy metal and dioxin to surrounding underground water, river channels, farmlands, crops and even surrounding residents in the process of discharging the washing liquid treated by the sewage by a wet method in the traditional process, and really achieves 'good care and environmental protection'.
The de-whitening heat exchanger 4 firstly cools the waste gas from the wet deacidification washing tower 3 through the environmental cold air blown by the air blower. Because the moisture content of the waste gas is very high, the cooled flue gas can be condensed, so that the moisture content of the flue gas is reduced, and the dehumidification effect is achieved. In addition, the temperature of the ambient cold air rises under the heat exchange and heating action of the waste gas, the air with the increased temperature is mixed with the dehumidified waste gas at the outlet, on one hand, the moisture content of the whole mixed gas is reduced, on the other hand, the smoke exhaust temperature is higher than the ambient temperature, and finally, the phenomenon of white smoke cannot occur in the smoke exhaust process.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, a schematic representation of the term does not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (5)
1. The utility model provides an extremely low discharge system of useless incineration flue gas of danger which characterized in that: the system comprises a flue gas purification mechanism and a waste water utilization mechanism, wherein the waste water utilization mechanism can convey workshop waste water to the flue gas purification mechanism for waste water utilization; the flue gas purification mechanism can purify high-temperature waste gas into clean tail gas and discharge the clean tail gas into the air.
2. The ultralow emission system of dangerous waste incineration flue gas of claim 1, characterized in that: the flue gas purification mechanism comprises a quenching deacidification tower (1), a bag-type dust collector (2), a wet deacidification washing tower (3) and a whitening heat exchanger (4) which are sequentially arranged along the flow direction of flue gas, and a high-temperature flue gas pipeline is arranged at the air inlet of the quenching deacidification tower (1); the gas outlet of the quenching deacidification tower (1) is communicated with the gas inlet of the bag-type dust remover (2); the gas outlet of the bag-type dust collector (2) is communicated with the gas inlet of the wet deacidification washing tower (3); the air outlet of the wet deacidification washing tower (3) is communicated with the air inlet of the de-whitening heat exchanger (4), the air outlet of the de-whitening heat exchanger (4) is a clean air discharge outlet,
the rapid cooling deacidification tower (1) is used for performing primary deacidification, rapid cooling and drying on high-temperature flue gas to form low-temperature waste gas;
the bag-type dust collector (2) is used for collecting dust in waste gas;
an alkali liquor circulating pool is arranged in the wet deacidification washing tower (3) and is used for carrying out secondary deacidification on the waste gas;
the de-whitening heat exchanger (4) is used for dehumidifying and de-whitening the waste gas.
3. The ultralow emission system of dangerous waste incineration flue gas of claim 2, characterized in that: the waste water utilization mechanism comprises a waste water pipeline (5) and an alkaline water pipeline (6), wherein the alkaline water pipeline (6) is communicated with an alkaline liquid circulating pool in the wet deacidification washing tower (3) and can convey waste alkaline water in a workshop to the alkaline liquid circulating pool; the top of the rapid cooling deacidification tower (1) is provided with a water inlet (7), the wastewater pipeline (5) is communicated with the water inlet (7), and cleaning wastewater in a workshop can be conveyed into the rapid cooling deacidification tower (1).
4. The ultralow emission system of dangerous waste incineration flue gas of claim 3, characterized in that: an alkali liquor pipeline (8) is arranged between the bottom of the alkali liquor circulating pool and the water inlet (7), and the alkali liquor pipeline (8) can be used for pumping out the alkali liquor in the alkali liquor circulating pool and spraying the alkali liquor into the quenching deacidification tower (1).
5. The ultralow emission system of dangerous waste incineration flue gas of claim 2, characterized in that: an activated carbon injection device (9) is arranged between the quenching deacidification tower (1) and the bag-type dust remover (2), and the activated carbon injection device (9) can blow activated carbon particles into the bag-type dust remover (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020392539.7U CN212091336U (en) | 2020-03-24 | 2020-03-24 | Dangerous waste incineration flue gas ultralow emission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020392539.7U CN212091336U (en) | 2020-03-24 | 2020-03-24 | Dangerous waste incineration flue gas ultralow emission system |
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| Publication Number | Publication Date |
|---|---|
| CN212091336U true CN212091336U (en) | 2020-12-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020392539.7U Active CN212091336U (en) | 2020-03-24 | 2020-03-24 | Dangerous waste incineration flue gas ultralow emission system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212091336U (en) |
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