CN111530216A - Flue gas quenching and dust removing device for inhibiting dioxin regeneration and control method - Google Patents
Flue gas quenching and dust removing device for inhibiting dioxin regeneration and control method Download PDFInfo
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- CN111530216A CN111530216A CN202010536840.5A CN202010536840A CN111530216A CN 111530216 A CN111530216 A CN 111530216A CN 202010536840 A CN202010536840 A CN 202010536840A CN 111530216 A CN111530216 A CN 111530216A
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 82
- 239000003546 flue gas Substances 0.000 title claims abstract description 81
- 239000000428 dust Substances 0.000 title claims abstract description 61
- 230000008929 regeneration Effects 0.000 title claims abstract description 25
- 238000011069 regeneration method Methods 0.000 title claims abstract description 25
- 238000010791 quenching Methods 0.000 title claims abstract description 21
- 230000000171 quenching effect Effects 0.000 title claims abstract description 21
- 230000002401 inhibitory effect Effects 0.000 title claims abstract description 18
- 238000000034 method Methods 0.000 title claims abstract description 11
- 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 title claims abstract 15
- 238000002156 mixing Methods 0.000 claims abstract description 32
- 238000001816 cooling Methods 0.000 claims abstract description 29
- 238000012544 monitoring process Methods 0.000 claims description 42
- 239000000779 smoke Substances 0.000 claims description 12
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 6
- 238000010891 electric arc Methods 0.000 abstract description 7
- 239000004744 fabric Substances 0.000 abstract description 4
- 239000010865 sewage Substances 0.000 abstract description 4
- 238000002485 combustion reaction Methods 0.000 abstract description 3
- 230000005764 inhibitory process Effects 0.000 abstract description 3
- 238000000746 purification Methods 0.000 abstract description 3
- KVGZZAHHUNAVKZ-UHFFFAOYSA-N 1,4-Dioxin Chemical compound O1C=COC=C1 KVGZZAHHUNAVKZ-UHFFFAOYSA-N 0.000 description 17
- 230000000694 effects Effects 0.000 description 8
- 239000000126 substance Substances 0.000 description 6
- 230000001276 controlling effect Effects 0.000 description 4
- 238000009845 electric arc furnace steelmaking Methods 0.000 description 3
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000000460 chlorine Substances 0.000 description 2
- 229910052801 chlorine Inorganic materials 0.000 description 2
- 230000000185 dioxinlike effect Effects 0.000 description 2
- 230000000670 limiting effect Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000002829 reductive effect Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000005507 spraying Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 238000009628 steelmaking Methods 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 206010007269 Carcinogenicity Diseases 0.000 description 1
- 241001465754 Metazoa Species 0.000 description 1
- 206010043275 Teratogenicity Diseases 0.000 description 1
- 230000001154 acute effect Effects 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 230000007670 carcinogenicity Effects 0.000 description 1
- 231100000260 carcinogenicity Toxicity 0.000 description 1
- 150000002013 dioxins Chemical class 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 231100000518 lethal Toxicity 0.000 description 1
- 230000001665 lethal effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 231100000211 teratogenicity Toxicity 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
Images
Classifications
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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
- B01D50/20—Combinations of devices covered by groups B01D45/00 and B01D46/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23J—REMOVAL OR TREATMENT OF COMBUSTION PRODUCTS OR COMBUSTION RESIDUES; FLUES
- F23J15/00—Arrangements of devices for treating smoke or fumes
- F23J15/06—Arrangements of devices for treating smoke or fumes of coolers
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F27—FURNACES; KILNS; OVENS; RETORTS
- F27D—DETAILS OR ACCESSORIES OF FURNACES, KILNS, OVENS, OR RETORTS, IN SO FAR AS THEY ARE OF KINDS OCCURRING IN MORE THAN ONE KIND OF FURNACE
- F27D17/00—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases
- F27D17/008—Arrangements for using waste heat; Arrangements for using, or disposing of, waste gases cleaning 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E20/00—Combustion technologies with mitigation potential
- Y02E20/30—Technologies for a more efficient combustion or heat usage
-
- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Environmental & Geological Engineering (AREA)
- Chimneys And Flues (AREA)
Abstract
The invention belongs to the field of dioxin inhibition and flue gas dust removal of electric arc furnace flue gas, and relates to a flue gas quenching dust removal device for inhibiting dioxin regeneration and a control method, wherein the flue gas quenching dust removal device comprises a water-cooling cyclone separator, an air-mixing cooler, a bag-type dust remover and a chimney which are sequentially arranged; one end of the outlet of the bag-type dust collector is connected with the chimney, and the other end of the outlet of the bag-type dust collector is connected with the air-mixing cooler through the circulating flue; and the air mixing cooler is internally provided with an air mixing fan. The invention has higher heat exchange efficiency and effectively inhibits the resynthesis of the dioxin; but also can not cause the problems of sewage treatment, pipeline blockage, bag pasting of a dust removal cloth bag and the like; the flue gas is mixed for cooling instead of air, so that the problems caused by secondary combustion of the flue gas can be effectively avoided; the dust removal equipment in the system can realize dust removal and purification of the flue gas in the circulation process, and the flue gas reaches the emission standard.
Description
Technical Field
The invention belongs to the field of dioxin inhibition and flue gas dust removal of electric arc furnace flue gas, and relates to a flue gas quenching dust removal device for inhibiting dioxin regeneration and a control method.
Background
The electric arc furnace steelmaking has the characteristics of short flow, energy conservation and the like, and the short-flow electric arc furnace steelmaking gradually replaces part of the long-flow converter steelmaking along with the continuous increase of the scrap steel amount in China and the adjustment of the national industrial structure. However, in the process of steelmaking in an electric arc furnace, chlorine-containing organic matters such as plastics and paint are adhered to the waste steel raw materials, and the chlorine-containing organic matters are decomposed and combusted into dioxin-like substances at high temperature, and the dioxin-like substances have acute lethal toxicity, high carcinogenicity, teratogenicity and the like, and can generate large-range and long-term harm to any animals. On the other hand, the flue gas generated by electric arc furnace steel making contains a large amount of dust, and the flue gas can be discharged after being subjected to dust removal treatment.
According to theoretical calculation and experimental data, when the flue gas temperature of the electric arc furnace is higher (such as 1000 ℃), dioxin substances can be decomposed, but when the flue gas temperature is reduced to a window range (such as 250 ℃ -450 ℃), the dioxin substances in the flue gas can be synthesized again, and the dioxin substances enter the atmosphere along with the emission of the flue gas, so that the environmental pollution is caused. The device and the system in the patent can let the flue gas reach rapid cooling when resynthesizing temperature window through the mode of circulation mixed wind, reduce the dwell time of flue gas at the resynthesizing temperature scope to reach the purpose that suppresses the regeneration of dioxin class material in the flue gas, and realize the purification of flue gas through dust collector among the flue gas circulation system. The traditional water-cooled wall heat exchange cooling method has low heat transfer efficiency, longer time of high-temperature flue gas staying in a resynthesis temperature window and poorer synthesis inhibition on dioxin substances. The traditional direct water spraying cooling method can generate more sewage, the sewage treatment is very troublesome, the moisture content of the flue gas can be increased rapidly due to direct water spraying, and the problems of pipeline blockage or bag pasting of a dust removal cloth bag can be easily caused after dust and water in the flue gas are mixed; the flue gas mixes the wind with the air and can reach the effect of cooling, but the oxygen in the air can produce postcombustion or explosion with remaining carbon dust or carbon monoxide in the flue gas, not only influences and mixes the cooling effect, more can bring the potential safety hazard.
Disclosure of Invention
In view of the above, the present invention provides a flue gas quenching and dedusting apparatus for inhibiting the regeneration of dioxin and a control method thereof, which effectively avoid the problems caused by the secondary combustion of flue gas by using the flue gas mixing cooling instead of the air mixing cooling.
In order to achieve the purpose, the invention provides the following technical scheme:
a flue gas quenching dust removal device for inhibiting the regeneration of dioxin comprises a water-cooling cyclone separator, an air-mixing cooler, a bag-type dust remover and a chimney which are sequentially arranged; one end of the outlet of the bag-type dust collector is connected with the chimney, and the other end of the outlet of the bag-type dust collector is connected with the air-mixing cooler through the circulating flue; and the air mixing cooler is internally provided with an air mixing fan.
Optionally, the water-cooled cyclone separator comprises an inner cylinder and an outer cylinder which are composed of water-cooled tubes; the inner cylinder is communicated with the outer cylinder, and the inner cylinder is connected with the air mixing cooler.
Optionally, the water-cooled cyclone separator further comprises an inlet connected to the outer cylinder, and the inlet is also composed of a water-cooled tube.
Optionally, a first temperature and flow monitoring unit is arranged between the water-cooling cyclone separator and the air mixing cooler, a second temperature and flow monitoring unit is arranged between the air mixing cooler and the bag-type dust remover, and a third temperature and flow monitoring unit is arranged on the circulating flue.
Optionally, at least one group of water-cooling heat exchangers is further arranged on the circulating flue.
Optionally, a smoke exhaust fan is further arranged between the bag-type dust collector and the chimney.
Optionally, a smoke exhaust adjusting valve is further arranged between the smoke exhaust fan and the bag-type dust collector.
Optionally, an atmospheric access valve is further disposed on the circulating flue.
A control method of a flue gas quenching and dedusting device for inhibiting the regeneration of dioxin adopts the flue gas quenching and dedusting device for inhibiting the regeneration of dioxin, a first temperature flow monitoring unit is arranged between a water-cooling cyclone separator and an air-mixing cooler, a second temperature flow monitoring unit is arranged between the air-mixing cooler and a bag-type dust collector, and a third temperature flow monitoring unit is arranged on a circulating flue; the temperature detected by the first temperature and flow monitoring unit is T1Flow rate of F1(ii) a The temperature detected by the second temperature and flow monitoring unit is T2Flow rate of F2(ii) a The temperature detected by the third temperature flow monitoring unit is T3Flow rate of F3(ii) a Controlling the first temperature flow monitoring unit, the second temperature flow monitoring unit and the third temperature flowThe flue gas temperature and the flow of monitoring unit department make it satisfy: t is1*F1+T3*F3＝T2*F2。
Optionally, a fourth flow control unit is arranged between the chimney and the bag-type dust collector, and the flow detected by the fourth flow control unit is F4And controlling the flue gas flow at the first temperature flow monitoring unit and the fourth flow control unit to meet the following requirements: f4＝F1。
The invention has the beneficial effects that:
the invention can ensure the heat exchange efficiency, effectively inhibit the resynthesis of the dioxin by controlling the temperature, and can not cause the problems of sewage treatment, pipeline blockage, bag pasting of a dust removal cloth bag and the like; the invention utilizes the mixed cooling of the flue gas, not utilizes the mixed cooling of air, can inhibit the problem brought by the secondary combustion of the flue gas effectively; the dust removal equipment in the system can realize dust removal and purification of the flue gas in the circulation process, and the flue gas reaches the emission standard.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention. The objectives and other advantages of the invention may be realized and attained by the means of the instrumentalities and combinations particularly pointed out hereinafter.
Drawings
For the purposes of promoting a better understanding of the objects, aspects and advantages of the invention, reference will now be made to the following detailed description taken in conjunction with the accompanying drawings in which:
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic structural view of a water-cooled cyclone separator.
Detailed Description
The embodiments of the present invention are described below with reference to specific embodiments, and other advantages and effects of the present invention will be easily understood by those skilled in the art from the disclosure of the present specification. The invention is capable of other and different embodiments and of being practiced or of being carried out in various ways, and its several details are capable of modification in various respects, all without departing from the spirit and scope of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic idea of the present invention in a schematic way, and the features in the following embodiments and examples may be combined with each other without conflict.
Wherein the showings are for the purpose of illustrating the invention only and not for the purpose of limiting the same, and in which there is shown by way of illustration only and not in the drawings in which there is no intention to limit the invention thereto; to better illustrate the embodiments of the present invention, some parts of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted.
The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there is an orientation or positional relationship indicated by terms such as "upper", "lower", "left", "right", "front", "rear", etc., based on the orientation or positional relationship shown in the drawings, it is only for convenience of description and simplification of description, but it is not an indication or suggestion that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes, and are not to be construed as limiting the present invention, and the specific meaning of the terms may be understood by those skilled in the art according to specific situations.
Referring to fig. 1-2, the reference numbers in the figures refer to the following elements: the device comprises an electric arc furnace 1, an inlet 2, an outer barrel 3, an inner barrel 4, a first temperature flow monitoring unit 5, a second temperature flow monitoring unit 6, a third temperature flow monitoring unit 7, a mixed air cooler 8, a mixed air fan 9, an atmospheric connection valve 10, a bag-type dust collector 11, a bag-type dust collection and discharge port 12, a water-cooled heat exchanger 13, a smoke exhaust regulating valve 14, a smoke exhaust fan 15, a fourth flow control unit 16 and a chimney 17.
The invention discloses a flue gas quenching dust removal device for inhibiting dioxin regeneration, wherein high-temperature flue gas generated at an electric arc furnace 1 firstly enters an outer cylinder 3 through an inlet 2 of a water-cooling cyclone separator for coarse dust removal and temperature reduction, and then flows out through an inner cylinder 4. The flue gas then enters the air mixing cooler 8 to be mixed with the low-temperature circulating flue gas, and the air mixing fan 9 provides flue gas circulating power and simultaneously enables the high-temperature flue gas and the circulating flue gas to be mixed more quickly and fully. The mixed flue gas is subjected to fine dust removal through a bag-type dust remover 11, and the emission standard is met. One part of the flue gas after fine dust removal is directly discharged through a chimney 17, and the other part of the flue gas enters a circulating flue. And a water-cooling heat exchanger 13 is arranged in the circulating flue to further cool the circulating flue gas, so that the air-mixing cooling effect is better. The temperature and the flue gas flow in the circulating system are ensured to be balanced through the temperature and flow monitoring point and the flow regulating valve in the system, so that the flue gas dedusting effect can be achieved while the dioxin regeneration is effectively inhibited. Fig. 2 is a partial schematic view of a water-cooled cyclone separator, which comprises an inlet 2, an outer cylinder 3 and an inner cylinder 4, all parts of which are composed of water-cooled tubes, and circulating water passes through the inside of the water-cooled cyclone separator to achieve the effect of cooling flue gas.
The present invention may employ the following control means to ensure the cooling effect. The flow of circulating water in the water-cooling cyclone separator can be adjusted in real time according to the temperature measured at the first temperature flow monitoring unit 5, the temperature of flue gas at the inlet of the air-mixing cooler 8 is always kept higher than a regeneration temperature window of dioxin, and the phenomenon that the water-cooling cyclone separator overcools the flue gas to cause dioxin regeneration is avoided.
Or a first temperature and flow monitoring unit 5 can be arranged between the water-cooling cyclone separator inner cylinder 4 and the air-mixing cooler 8, a second temperature and flow monitoring unit 6 can be arranged between the air-mixing cooler 8 and the bag-type dust collector 11, and a third temperature and flow monitoring unit 7 can be arranged on the circulating flue; the temperature detected by the first temperature and flow monitoring unit is T1Flow rate of F1(ii) a The temperature detected by the second temperature and flow monitoring unit is T2Flow rate of F2(ii) a The temperature detected by the third temperature flow monitoring unit is T3Flow rate of F3(ii) a Controlling the temperature and flow of the flue gas in the first temperature and flow monitoring unit 5, the second temperature and flow monitoring unit 6 and the third temperature and flow monitoring unit 7 to be fullFoot: t is1*F1+T3*F3＝T2*F2。
Furthermore, a part of the flue gas after the fine dust removal by the bag-type dust remover 11 passes through the smoke exhaust fan 15 and is exhausted from the chimney 17. To ensure the internal flue gas circulation balance, the flow at the fourth flow control unit 16 can be controlled by adjusting the smoke damper 14 to be equal to the flow measured at the first temperature and flow monitoring unit, i.e. F4＝F1。
Furthermore, the flue gas entering the circulating flue needs to be further cooled by the water-cooling heat exchanger 13, so that the flue gas in the air-mixing cooler 8 can be quenched and cooled more effectively. One or more water-cooled heat exchangers 13 can be selected in series according to actual conditions. As shown by theoretical calculation and experimental data, if the window of the regeneration temperature of the dioxin is 250 ℃ to 450 ℃, the temperature T of the inlet 2 of the air-mixing cooler 8 is controlled1At 500 ℃ and an outlet temperature T2200 ℃, if the water-cooled heat exchanger 13 can cool the circulating flue gas to about 60 ℃, the required circulating flue gas amount F3For an electric arc furnace 1 flue gas quantity F1About 2 times of the total weight of the product. The lower the temperature of the water-cooled heat exchanger 13 capable of cooling the circulating flue gas, the less the amount of the circulating flue gas required, and the lower the energy consumption of the air mixing fan 9.
The device and the system are provided with the atmospheric access valve 10, when a cooling device in the system breaks down to cause poor smoke cooling effect, the atmospheric access valve 10 can be opened emergently to mix part of cold air, and smoke overtemperature in an accident state is avoided. All dust in the flue gas is firstly discharged through the dust discharge port at the lower part of the outer barrel 3, and the rest dust is discharged through the cloth bag dust removal dust discharge port 12, so that a large amount of dust is prevented from being accumulated in the system.
Finally, the above embodiments are only intended to illustrate the technical solutions of the present invention and not to limit the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that modifications or equivalent substitutions may be made on the technical solutions of the present invention without departing from the spirit and scope of the technical solutions, and all of them should be covered by the claims of the present invention.
Claims (10)
1. A flue gas quenching dust removal device for inhibiting the regeneration of dioxin is characterized by comprising a water-cooling cyclone separator, an air-mixing cooler, a bag-type dust remover and a chimney which are arranged in sequence; one end of the outlet of the bag-type dust collector is connected with the chimney, and the other end of the outlet of the bag-type dust collector is connected with the air-mixing cooler through the circulating flue; and the air mixing cooler is internally provided with an air mixing fan.
2. The flue gas quenching and dedusting device for inhibiting the dioxin regeneration as claimed in claim 1, wherein the water-cooled cyclone separator comprises an inner cylinder and an outer cylinder which are composed of water-cooled pipes; the inner cylinder is communicated with the outer cylinder, and the inner cylinder is connected with the air mixing cooler.
3. The flue gas quenching and dust removing device for inhibiting the regeneration of dioxin in claim 2, wherein the water-cooled cyclone separator further comprises an inlet connected with the outer cylinder, and the inlet is also composed of a water-cooled tube.
4. The flue gas quenching and dust removing device for suppressing the regeneration of dioxin in claim 1, wherein a first temperature and flow monitoring unit is provided between the water-cooled cyclone separator and the air-mixed cooler, a second temperature and flow monitoring unit is provided between the air-mixed cooler and the bag-type dust remover, and a third temperature and flow monitoring unit is provided on the circulating flue.
5. The flue gas quenching and dedusting device for inhibiting the dioxin regeneration as claimed in claim 1, wherein at least one set of water-cooled heat exchangers is further arranged on the circulating flue.
6. The flue gas quenching and dust removing device for inhibiting the regeneration of dioxin in claim 1, wherein a smoke exhaust fan is further arranged between the bag-type dust remover and the chimney.
7. The flue gas quenching and dust removing device for inhibiting the regeneration of dioxin in claim 6, wherein a smoke exhaust adjusting valve is further arranged between the smoke exhaust fan and the bag-type dust remover.
8. The flue gas quenching and dedusting device for inhibiting the dioxin regeneration as in claim 1, wherein an atmosphere access valve is further arranged on the circulating flue.
9. A control method of a flue gas quenching and dedusting device for inhibiting the regeneration of dioxin, which is characterized in that the flue gas quenching and dedusting device for inhibiting the regeneration of dioxin is adopted, a first temperature and flow monitoring unit is arranged between the water mixing and cooling cyclone separator and the air mixing cooler, a second temperature and flow monitoring unit is arranged between the air mixing cooler and the bag-type dust remover, and a third temperature and flow monitoring unit is arranged on the circulating flue; the temperature detected by the first flow temperature monitoring unit is T1Flow rate of F1(ii) a The temperature detected by the second flow temperature monitoring unit is T2Flow rate of F2(ii) a The temperature detected by the third flow temperature monitoring unit is T3Flow rate of F3(ii) a Controlling the flue gas temperature and flow at the first temperature flow monitoring unit, the second temperature flow monitoring unit and the third temperature flow monitoring unit to meet the following requirements: t is1*F1+T3*F3＝T2*F2。
10. The method for controlling a flue gas quenching and dust removing device for suppressing the regeneration of dioxin according to claim 9, characterized in that a fourth flow control unit is provided between the chimney and the bag-type dust remover, and the flow detected by the fourth flow monitoring unit is F4And controlling the flue gas flow at the first temperature flow monitoring unit and the fourth flow control unit to meet the following requirements: f4＝F1。
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Citations (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1028835A (en) * | 1996-07-19 | 1998-02-03 | Ishikawajima Harima Heavy Ind Co Ltd | Treatment method for combustion exhaust gas containing dioxin |
| JPH10192649A (en) * | 1996-11-18 | 1998-07-28 | Mitsubishi Heavy Ind Ltd | Treatment of exhaust gas |
| JPH11183049A (en) * | 1997-12-24 | 1999-07-06 | Nkk Corp | Method of treating exhaust gas in electric furnace |
| JP2000074360A (en) * | 1998-08-31 | 2000-03-14 | Setekku:Kk | Dioxin and the like generation suppressing system |
| US20030105381A1 (en) * | 2001-11-30 | 2003-06-05 | Carsten Eckert | Method for emission control of dioxin and/or furan waste gas pollutants in a cement clinker production line |
| US20040173096A1 (en) * | 2003-01-22 | 2004-09-09 | Junichi Terasaki | Method and system for treating exhaust gas from cement manufacturing equipment |
| JP2004331739A (en) * | 2003-05-02 | 2004-11-25 | Ebara Corp | Dioxin-decomposing agent |
| JP2005270945A (en) * | 2004-03-23 | 2005-10-06 | Yasuhiko Mori | System for treating flue gas by using negative high voltage |
| CN102350160A (en) * | 2011-07-21 | 2012-02-15 | 浙江环益科技有限公司 | System for purifying flue gas produced by waste circuit board burning |
| RU2010136756A (en) * | 2010-09-01 | 2012-03-10 | Федеральное государственное автономное образовательное учреждение высшего профессионального образования "Уральский федеральный уни | METHOD FOR BURNING AND DUSTYING OUT OF GASES OF ELECTRIC ARC STEEL FURNACES |
| CN102449123A (en) * | 2009-04-17 | 2012-05-09 | 普罗特高公司 | Method and apparatus for gasification of organic waste |
| CN203436995U (en) * | 2013-08-05 | 2014-02-19 | 河北环科力创环境工程有限公司 | Cooperative control device for multi-pollutant in sintering flue gas |
| CN108455605A (en) * | 2018-01-25 | 2018-08-28 | 江苏齐清环保设备有限公司 | A kind of waste active carbon activating and regenerating treatment process |
| CN108758658A (en) * | 2018-07-30 | 2018-11-06 | 浙江大学 | A kind of useless activated coke Incineration in CFB system |
| CN108870988A (en) * | 2018-04-13 | 2018-11-23 | 清华大学 | A kind of sintering smoke purifying system and its purification method |
| CN109611853A (en) * | 2018-12-19 | 2019-04-12 | 安徽节源环保科技有限公司 | A kind of method of dry-process cement rotary kiln collaboration processing house refuse |
| CN110180356A (en) * | 2019-03-20 | 2019-08-30 | 浙江大维高新技术股份有限公司 | The processing unit and method of Cremation Machine incineration flue gas |
| CN110440268A (en) * | 2019-08-09 | 2019-11-12 | 陈景鹤 | The oxygen barrier carbonization of house refuse low temperature pyrogenation and second-time burning integrated device |
| CN110606648A (en) * | 2019-09-20 | 2019-12-24 | 中国联合工程有限公司 | Sludge mixing drying pure combustion power generation system and working method thereof |
| CN110624384A (en) * | 2019-10-17 | 2019-12-31 | 中国环境保护集团有限公司 | Purification treatment method and purification treatment device for waste incineration flue gas |
| CN110793338A (en) * | 2019-11-29 | 2020-02-14 | 中国科学院过程工程研究所 | Flue gas purification and waste heat utilization system and method |
| CN212440597U (en) * | 2020-06-12 | 2021-02-02 | 中冶赛迪技术研究中心有限公司 | Flue gas quenching dust collector that restraines dioxin regeneration |
-
2020
- 2020-06-12 CN CN202010536840.5A patent/CN111530216A/en active Pending
Patent Citations (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH1028835A (en) * | 1996-07-19 | 1998-02-03 | Ishikawajima Harima Heavy Ind Co Ltd | Treatment method for combustion exhaust gas containing dioxin |
| JPH10192649A (en) * | 1996-11-18 | 1998-07-28 | Mitsubishi Heavy Ind Ltd | Treatment of exhaust gas |
| JPH11183049A (en) * | 1997-12-24 | 1999-07-06 | Nkk Corp | Method of treating exhaust gas in electric furnace |
| JP2000074360A (en) * | 1998-08-31 | 2000-03-14 | Setekku:Kk | Dioxin and the like generation suppressing system |
| US20030105381A1 (en) * | 2001-11-30 | 2003-06-05 | Carsten Eckert | Method for emission control of dioxin and/or furan waste gas pollutants in a cement clinker production line |
| US20040173096A1 (en) * | 2003-01-22 | 2004-09-09 | Junichi Terasaki | Method and system for treating exhaust gas from cement manufacturing equipment |
| JP2004331739A (en) * | 2003-05-02 | 2004-11-25 | Ebara Corp | Dioxin-decomposing agent |
| JP2005270945A (en) * | 2004-03-23 | 2005-10-06 | Yasuhiko Mori | System for treating flue gas by using negative high voltage |
| CN102449123A (en) * | 2009-04-17 | 2012-05-09 | 普罗特高公司 | Method and apparatus for gasification of organic waste |
| RU2010136756A (en) * | 2010-09-01 | 2012-03-10 | Федеральное государственное автономное образовательное учреждение высшего профессионального образования "Уральский федеральный уни | METHOD FOR BURNING AND DUSTYING OUT OF GASES OF ELECTRIC ARC STEEL FURNACES |
| CN102350160A (en) * | 2011-07-21 | 2012-02-15 | 浙江环益科技有限公司 | System for purifying flue gas produced by waste circuit board burning |
| CN203436995U (en) * | 2013-08-05 | 2014-02-19 | 河北环科力创环境工程有限公司 | Cooperative control device for multi-pollutant in sintering flue gas |
| CN108455605A (en) * | 2018-01-25 | 2018-08-28 | 江苏齐清环保设备有限公司 | A kind of waste active carbon activating and regenerating treatment process |
| CN108870988A (en) * | 2018-04-13 | 2018-11-23 | 清华大学 | A kind of sintering smoke purifying system and its purification method |
| CN108758658A (en) * | 2018-07-30 | 2018-11-06 | 浙江大学 | A kind of useless activated coke Incineration in CFB system |
| CN109611853A (en) * | 2018-12-19 | 2019-04-12 | 安徽节源环保科技有限公司 | A kind of method of dry-process cement rotary kiln collaboration processing house refuse |
| CN110180356A (en) * | 2019-03-20 | 2019-08-30 | 浙江大维高新技术股份有限公司 | The processing unit and method of Cremation Machine incineration flue gas |
| CN110440268A (en) * | 2019-08-09 | 2019-11-12 | 陈景鹤 | The oxygen barrier carbonization of house refuse low temperature pyrogenation and second-time burning integrated device |
| CN110606648A (en) * | 2019-09-20 | 2019-12-24 | 中国联合工程有限公司 | Sludge mixing drying pure combustion power generation system and working method thereof |
| CN110624384A (en) * | 2019-10-17 | 2019-12-31 | 中国环境保护集团有限公司 | Purification treatment method and purification treatment device for waste incineration flue gas |
| CN110793338A (en) * | 2019-11-29 | 2020-02-14 | 中国科学院过程工程研究所 | Flue gas purification and waste heat utilization system and method |
| CN212440597U (en) * | 2020-06-12 | 2021-02-02 | 中冶赛迪技术研究中心有限公司 | Flue gas quenching dust collector that restraines dioxin regeneration |
Non-Patent Citations (3)
| Title |
|---|
| 代婷蓉: "电炉炼钢烟气除尘工艺的探讨", 冶金丛刊, no. 03 * |
| 彭政: "圾焚烧飞灰二噁英的控制技术研究", 垃圾焚烧飞灰二噁英的控制技术研究, no. 06, 15 June 2008 (2008-06-15) * |
| 王新东，黄毅: "氧气转炉烟气干法净化技术及应用", 炼钢, no. 01 * |
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