CN104048306B - Energy-saving environmental-protection boiler exhaust emissions tower - Google Patents
Energy-saving environmental-protection boiler exhaust emissions tower Download PDFInfo
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- CN104048306B CN104048306B CN201410320084.7A CN201410320084A CN104048306B CN 104048306 B CN104048306 B CN 104048306B CN 201410320084 A CN201410320084 A CN 201410320084A CN 104048306 B CN104048306 B CN 104048306B
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Abstract
The invention discloses a kind of energy-saving environmental-protection boiler exhaust emissions tower, comprise discharge tower body, wherein: the middle part, bottom of discharge tower body is provided with tail gas and flows into flue and exhaust gas heat retracting device; One end that tail gas flows into flue is communicated with boiler room exhaust emission pipeline, and tail gas flows into the other end of flue and the Surface Contact of exhaust gas heat retracting device; The bottom surrounding of discharge tower body is provided with outdoor cold wind import; The cold air entering from outdoor cold wind import and the middle part head-on collision chamber that jointly leads to discharge tower body through exhaust gas heat retracting device boiler exhaust gas after treatment; The top of discharge tower body distributes and is provided with two exhaust uptakes that entirety is S-shaped from middle part to both sides, and both sides, top are provided with mixed tail gas outlet; The arrival end of the exhaust uptake of S shape is communicated with middle part head-on collision chamber, and the port of export of the exhaust uptake of S shape is communicated with mixed tail gas outlet; On the walling of flue of the exhaust uptake of S shape, be all equipped with the absorption baffle plate for adsorbing solid particulate matter.
Description
Technical field
The present invention relates to thermal hardware and manufacture field, relate in particular to a kind of energy-saving environmental-protection boilerExhaust emissions tower.
Background technology
In daily production, the range of application of gas fired-boiler is comparatively extensive, is applicable to industry and driesThe fields such as the heating in dry application, large-scale commercial building or civil buildings.
The general temperature of gas fired-boiler tail gas can reach 150 DEG C of left and right, has to recycleUsed heat. At present, have research for the waste heat recovery of boiler exhaust gas both at home and abroad, and existing portionDivide product. Two kinds of waste heat of boiler tail gas device architectures pair in prior art as schematically shown in Figure 1Than schematic diagram, A does not generally install exhaust waste heat recovery device schematic diagram; B installs tailThe discharge schematic diagram of gas waste heat recovery, after installation tail gas heat exchanger, boiler exhaust gas exhaust temperature fallsLow, the heat of recovery can be for heating, health hot water preparation, water inlet waste heat or other useOn the way; The kind of tail gas heat exchanger has shell and tube exchanger, phase-change heat-exchanger, water spray heat exchangerDeng various ways. But existing tail gas heat exchanger product is all mounted in boiler room, oneAs approach boiler exhaust gas outlet, focus on how reducing the exhaust temperature of boiler exhaust gas, try one's best backReceive waste heat.
But above-mentioned Fig. 1, the system architecture that in prior art, B illustrates but exists followingObjective technique defect: existing tail gas heat exchanger product mainly exists the problem of several aspects:(1) function singleness: focus on how reducing the exhaust temperature of boiler exhaust gas, pay close attention to heatRecovery, and ignored the shadow of pollutant to environment in boiler exhaust gas smoke stack emission mouth place tail gasRing, after use existing apparatus, can only realize the simple function that used heat utilizes. (the i.e. boiler of dischargeTail gas can produce a large amount of white smoke has affected cell environment, simultaneously solid particle in tail gasThe discharge of thing has increased the weight of serious haze weather of North City undoubtedly). Boiler exhaust gas is alsoCan cause pollution sources for environmental disruption, in the high-temperature flue gas of tail gas outlet, contain solid particleAnd pernicious gas (PM2.5 (particulatematter, particle), nitrogen oxide (NOX),Oxysulfide (SOX), CO, CO2 etc.), general gas fired-boiler tail gas also contains water vapour(H2O). What wherein, cause atmosphere pollution is mainly nitric oxide (NO) and nitrogen dioxideAnd sulfur dioxide (SO2) etc. (NO2).
(2) the system architecture installation difficulty that B illustrates is larger: boiler exhaust gas recuperation of heat is nearYear just obtains the power-saving technology of paying attention to, the domestic existing rarer installation tail gas of a large amount of active boilersHeat reclamation device, the Waste Heat Recovery of utilizing existing device and technology to implement boiler exhaust gas utilizes oneAs inevitably to relate to the secondary of boiler room tail gas discharge system and other heating systemsTransformation, difficulty of construction is large, and improvement cost is high; Even to newly-built boiler exhaust gas discharge systemSystem, just uses tail gas heat-exchanger rig while installation for the first time, due to above-mentioned boiler exhaust gas recuperation of heat dressPut and be only confined to be arranged in boiler room, and installation site equipment is many, pipeline is many, thereforeInstallation difficulty is all larger.
Therefore, how to overcome the above-mentioned technical problem relating in prior art, for this areaTechnical staff is technical problem urgently to be resolved hurrily.
Summary of the invention
The object of the present invention is to provide a kind of energy-saving environmental-protection boiler exhaust emissions tower, to separateCertainly the problems referred to above.
In order to achieve the above object, technical scheme of the present invention is achieved in that
The invention provides a kind of energy-saving environmental-protection boiler exhaust emissions tower, comprise discharge tower originallyBody, wherein:
The middle part, bottom of described discharge tower body is provided with tail gas and flows into flue and exhaust gas heat recoveryDevice; One end that described tail gas flows into flue is communicated with boiler room exhaust emission pipeline, described inTail gas flows into the other end of flue and the Surface Contact of described exhaust gas heat retracting device; Described rowThe bottom surrounding of putting tower body is provided with outdoor cold wind import; From described outdoor cold wind importThe cold air entering leads to institute jointly with process exhaust gas heat retracting device boiler exhaust gas after treatmentState the middle part head-on collision chamber of discharge tower body;
The top of described discharge tower body is provided with two entirety from middle part to both sides distribution and is SThe exhaust uptake of shape, both sides, top are provided with mixed tail gas outlet; The exhaust cigarette of described S shapeThe arrival end in road and middle part head-on collision chamber is communicated with, the port of export of the exhaust uptake of described S shape andMixed tail gas outlet is communicated with;
On the walling of flue of the exhaust uptake of described S shape, be all equipped with for adsorbing solid particulate matterAbsorption baffle plate.
Preferably, described absorption baffle plate comprises metal screen or filter paper, active carbon filter plate, quietElectric dust collecting means; Described absorption baffle plate and described discharge tower body removably connect.
Preferably, described mixed tail gas exit be also provided with eliminate the noise absorption blinds, described in disappearSound absorption blinds and described discharge tower body removably connect.
Preferably, described tail gas flows into flue outer wall and is provided with flue layer.
Preferably, described discharge tower body comprises cuboid tower body and herringbone tower lid; InstituteStating cuboid tower body and herringbone tower lid is color steel and builds.
Preferably, the bottom of described discharge tower body is also provided with grounding-for-lightning device.
Preferably, the front of described discharge tower body is also provided with repair and maintenance door.
Compared with prior art, the advantage of the embodiment of the present invention is:
A kind of energy-saving environmental-protection boiler exhaust emissions tower provided by the invention, analyzes above-mentioned energy-conservationEnvironment-friendly boiler exhaust emissions tower structure is known:
The tail gas water smoke separation principle that condenses: because the tail gas of discharge tower body bottom flows into flueTail gas inlet port and the mixed tail gas outlet at top there is the vertical discrepancy in elevation, and discharge tower bodyThere is the temperature difference in inner flue gas and extraneous air, therefore goes out in outdoor cold wind import and mixed tail gasBetween mouthful, there is hot pressing, can form free convection power, do not need the machine power can trend chamberOuter air enter discharge tower body and mix with flue gas after discharge from mixed tail gas exit point; HighTemperature boiler exhaust gas, after the preliminary cooling of overheated switching heat-exchanger, enters in middle part head-on collision chamber, thisTime cold air clash and mix with the heat exchange tail gas also having surplus heat after treatment, due to two kindsThe impact of gas temperature differential, and liquefaction produces a large amount of steam rapidly, steam will be rightA large amount of solid particles and dusty gas carry out atomization sedimentation, thereby tail gas is carried out for the first timeHead-on collision purified treatment;
Mist in the chamber of process head-on collision subsequently and outdoor low temperature cold air are the row of S shapeIn gas flue, again constantly mix, tail gas is constantly lowered the temperature, and the water vapour in boiler exhaust gas is able toCondense, from mixed tail gas outlet is discharged, no longer condense, therefore originally no longer external at discharge towerSee and have white mist to produce, beautified near the landscape effect of exhaust port, embodied dischargeThe environment-friendly function of tower body.
Particle is removed principle: the particle in flue gas, is rising and and chamber with boiler exhaust gasIn the continuous mixed process of outer cold air, the thermal and humidity environment forming in discharge tower body, is accompanied byThe condensing water droplet constantly producing in mixed flue gas, makes particle constantly be increased volume;Thermal convection current is taken in the mobile process of particle mixed flue gas volume, constantly contacts with absorption baffle plate,Particle in flue gas is constantly blocked or adsorbs (i.e. tail gas clean-up processing for the second time), makesThe concentration that must discharge particle in the mixed flue gas that discharges tower body reduces greatly, highly beneficialIn the haze weather of alleviating North City, embody the environment-friendly function of discharge tower body.
Heat recovering process principle: boiler exhaust gas from boiler enters this energy saving and environment friendly discharge tower,Vent gas treatment and the sedimentation through too much slope time of outlet from entrance to mixed tail gas; Wherein tail gasThrough with the Surface Contact of exhaust gas heat retracting device after, the heat in high-temperature tail gas is changed by heatIn phase-change heat-exchange medium evaporation absorb, tail gas cooling, the high-temperature water vapor in tail gas simultaneouslyCooling is tentatively condensed.
Obviously, energy-saving environmental-protection boiler exhaust emissions tower provided by the invention, collects multiple meritCan be in one (purification, dedusting, exhaust gas heat recovery, tail gas noise remove etc.), and be independent ofBoiler room, its contour structures is attractive in appearance, and multiple thermal hardware (for example: tail gas can be realized in insideHeat reclamation device) installation and application.
Brief description of the drawings
Fig. 1 is two kinds of waste heat of boiler tail gas device architectures contrast schematic diagram of the prior artStructural representation;
Analysing and observe of the energy-saving environmental-protection boiler exhaust emissions tower that Fig. 2 provides for the embodiment of the present inventionStructural representation;
The outward appearance of the energy-saving environmental-protection boiler exhaust emissions tower that Fig. 3 provides for the embodiment of the present inventionStructural representation.
Detailed description of the invention
Also by reference to the accompanying drawings the present invention is done further in detail below by specific embodimentDescribe.
Referring to Fig. 2, a kind of energy-saving environmental-protection boiler exhaust emissions that the embodiment of the present invention providesTower, comprises discharge tower body 10, wherein:
The middle part, bottom of described discharge tower body 10 is provided with tail gas and flows into flue 1 and exhaust gas heatRetracting device 2; The tail gas row of output in one end of described tail gas inflow flue 1 and boiler roomPut pipeline communication, described tail gas flows into the other end and the described exhaust gas heat retracting device of flue 12 Surface Contact; The bottom surrounding of described discharge tower body 10 is provided with outdoor cold wind and entersMouth 11; The cold air entering from described outdoor cold wind import 11 is with through exhaust gas heat, recovery fillsPut the middle part head-on collision chamber that 2 boiler exhaust gas after treatment lead to described discharge tower body 10 jointly4；
The top of described discharge tower body 10 distributes and is provided with two entirety from middle part to both sidesS-shaped exhaust uptake 6, both sides, top are provided with mixed tail gas outlet 7; Described S shapeArrival end and the middle part head-on collision chamber 4 of exhaust uptake 6 be communicated with, the exhaust cigarette of described S shapeThe port of export in road 6 is communicated with mixed tail gas outlet 7;
On the walling of flue of the exhaust uptake 6 of described S shape, be all equipped with for adsorbing solid particleThe absorption baffle plate 5 of thing.
The tail gas water smoke separation principle that condenses: because the tail gas of discharge tower body bottom flows into flueTail gas inlet port and the mixed tail gas outlet at top there is the vertical discrepancy in elevation, and discharge tower bodyThere is the temperature difference in inner flue gas and extraneous air, therefore goes out in outdoor cold wind import and mixed tail gasBetween mouthful, there is hot pressing, can form free convection power, do not need the machine power can trend chamberOuter air enter discharge tower body and mix with flue gas after discharge from mixed tail gas exit point; HighTemperature boiler exhaust gas, after the preliminary cooling of overheated switching heat-exchanger, enters in middle part head-on collision chamber, thisTime cold air clash and mix with the heat exchange tail gas also having surplus heat after treatment, due to two kindsThe impact of gas temperature differential, and liquefaction produces a large amount of steam rapidly, steam will be rightA large amount of solid particles and dusty gas carry out atomization sedimentation, thereby tail gas is carried out for the first timeHead-on collision purified treatment;
Mist in the chamber of process head-on collision subsequently and outdoor low temperature cold air are the row of S shapeIn gas flue, again constantly mix, tail gas is constantly lowered the temperature, and the water vapour in boiler exhaust gas is able toCondense, from mixed tail gas outlet is discharged, no longer condense, therefore originally no longer external at discharge towerSee and have white mist to produce, beautified near the landscape effect of exhaust port, embodied dischargeThe environment-friendly function of tower body.
Particle is removed principle: the particle in flue gas, is rising and and chamber with boiler exhaust gasIn the continuous mixed process of outer cold air, the thermal and humidity environment forming in discharge tower body, is accompanied byThe condensing water droplet constantly producing in mixed flue gas, makes particle constantly be increased volume;Thermal convection current is taken in the mobile process of particle mixed flue gas volume, constantly contacts with absorption baffle plate,Particle in flue gas is constantly blocked or adsorbs (i.e. tail gas clean-up processing for the second time), makesThe concentration that must discharge particle in the mixed flue gas that discharges tower body reduces greatly, highly beneficialIn the haze weather of alleviating North City, embody the environment-friendly function of discharge tower body.
Heat recovering process principle: boiler exhaust gas from boiler enters this energy saving and environment friendly discharge tower,Vent gas treatment and the sedimentation through too much slope time of outlet from entrance to mixed tail gas; Wherein tail gasThrough with the Surface Contact of exhaust gas heat retracting device after, the heat in high-temperature tail gas is changed by heatIn phase-change heat-exchange medium evaporation absorb, tail gas cooling, the high-temperature water vapor in tail gas simultaneouslyCooling is tentatively condensed.
The energy-saving environmental-protection boiler exhaust emissions the tower below embodiment of the present invention being provided concreteStructure is done and is further illustrated:
Wherein, described absorption baffle plate 5 comprises metal screen or filter paper, active carbon filter plate, quietElectric dust collecting means or other porous adsorbing materials (this is repeated no longer one by one); Described absorptionBaffle plate 5 removably connects with described discharge tower body 10.
It should be noted that, absorption baffle plate can use porous filtering material, as nonwoven,(at present adsorption capacity for metal screen, active carbon filter plate, filter paper, fiber, foam cotton etc.HEPA high-density air filter material is counted in strong working as), the suspended particulate in absorbed air, You HaiqiBody, and mist is carried out to enrichment, thus purify air. Or adopt electrostatic precipitation dressPut: make in tail gas pollutant charged by static, then adsorbed band with dust collect plant trappingThe dirt in air of electrochondria, reaches the object that purifies air.
Preferably, described mixed tail gas export 7 places be also provided with eliminate the noise absorption blinds (do not showGo out), described noise elimination absorption blinds and described discharge tower body 10 removably connect.
Preferably, described tail gas flows into flue 1 outer wall and is provided with flue layer.
Preferably, described discharge tower body 10 comprises cuboid tower body 101 and herringbone towerLid 102; Described cuboid tower body 101 and herringbone tower lid 102 (are also color steelCan select the heat conductor material that other heat-transfer effects are good to substitute color steel) build.
It should be noted that, in the structure of energy-saving environmental-protection boiler exhaust emissions tower, with coloured silkSteel plate is architecture basics, and multiple color steels are fixedly connected with the structure that can form discharge tower body.
Preferably, the bottom of described discharge tower body 10 is also provided with grounding-for-lightning device 103.
Preferably, referring to Fig. 3, the front of described discharge tower body 10 is also provided with maintenance dimensionProtect door 104.
Said structure is taken turns doing to explanation once below:
It should be noted that (1) demist reliability consideration: in order to be conducive to the water in tail gasSteam condensation, treating column top board and riser all adopt good heat-transfer sheet metal make (asColor steel); In addition, the runner for the treatment of column top mixed tail gas is arranged to snakelike, can increase mixedClose the time of staying of tail gas in tower, increase condensation vapor degree and the seizure journey to particleDegree;
(2) lightning protection consider: due to treating column be arranged at outdoor and for building enclosure be metal materialMatter, arranges bottom grounding-for-lightning device in order to use treating column safely;
(3) consideration of noise prevention: because boiler exhaust gas discharge flue connects boiler room, potIn stove room, equipment is more, may have the equipment running noises of boiler room to discharge from exhaust portAffect environment, for noise isolation, treating column is set to enclosed construction, the outer cold wind air intake of towerMouth and mixed tail gas floss hole all adopt noise elimination blinds, can effectively prevent noise pollution;
(4) boiler exhaust gas road insulation: to the strengthening insulation of boiler exhaust gas road, prevent in treating columnBoiler exhaust gas produces condensate water in smokejack, and refluence back boiler affects equipment and normally uses;
(5) repair and maintenance convenience is considered: treating column arranges openable repair and maintenance door,While closing at ordinary times maintenance, can open; In tower, each interception absorption baffle plate, noise elimination blinds are all set toRemovably, can be according to the tail gas particulate pollutant that is blocked isolation after operation some cyclesClean and change.
Compared with existing boiler exhaust gas treating apparatus, the energy-conserving and environment-protective that the embodiment of the present invention providesType boiler exhaust gas discharge tower has following advantage:
(1) multi-functional: integrated boiler exhaust gas recuperation of heat, the isolation of boiler exhaust gas smog, potThe removal of furnace exhaust gas particle, exhaust port noise processed, the improvement of floss hole view etc. are multipleFunction is in one. By high efficiency gravity formula heat exchange of heat pipe recovery boiler using waste heat from tail gas, pass throughSerpentine flow path structure guarantees that the cooling of tail gas in tower condense, and prevents that steam from condensing at tower outward,Multiple tracks interception absorption baffle plate is set, makes in tail gas after particle is assembled under thermal and humidity environment in towerEffectively caught, the absorption blinds of eliminating the noise is set and enters exhaust outlet, reduced boiler exhaust gas floss hole placeDisplacement noise.
(2) facility is installed: this boiler exhaust gas treating column is installed simple, can be according to floss hole placeOutdoor site condition is carried out specific aim design, as long as ensure enough free air spaces in treating column,Be not subject to the restriction of e-quipment and pipe arrangement space in boiler room, also avoided with equipment room in eachThe intersection of planting pipeline and equipment, construction cost is low. To newly constructed boiler room and reconstruction boiler roomVent gas treatment is all applicable.
(3) good reliability: treating column machinery-free movable part, long service life (10 yearsAbove); Equipment maintenance repair is easy to maintenance.
(4) landscape effect is good: change traditional lofty landscape impact of boiler exhaust gas floss hole,Floss hole is arranged to view class building, takes into account the association of floss hole and neighboring buildings outdoor environmentAdjust unification, vent gas treatment tower is handsome in appearance, and it is organic that the installation of discharge tower is arranged at architectural environmentUnified.
The energy-saving environmental-protection boiler exhaust emissions tower that the embodiment of the present invention provides can be to be cleanThat tail gas carries out is multistage (being many slopes time), continuously, purification, enrichment and sedimentation place of the atmosphere scale of constructionReason, it is very obvious to boiler exhaust gas purification treatment technology effect, can reach quite high effectPurification efficiency; This device is to the removal efficiency of sulfur dioxide for higher, and reaction rate is high;
The energy-saving environmental-protection boiler exhaust emissions tower that the embodiment of the present invention provides, can be to combustion gasEffective air cleaning is carried out in boiler exhaust gas discharge, meets atmosphere pollutants emission standards. ?When reclaiming tail gas waste heat, reduce the destruction of pollutant to atmospheric environment in tail gas, especiallyBe to North City winter, reduce the strong white smoke pair of high-temperature tail gas floss holeThe destruction of visual Landscape, reduces the row of the solid particulate matters such as PM2.5 in flue gas to atmospheric environmentPut, alleviate the haze weather of North City, simultaneously such energy-saving environmental-protection boiler tail gas rowPut tower and also there is easy transformation, (mostly being dismountable connected mode) easy to assemble, easy to maintenance etc.Characteristic, it is easy that it manufactures installation steps, compact conformation, volume is little, floor space is little.
The foregoing is only the preferred embodiments of the present invention, be not limited to the present invention,For a person skilled in the art, the present invention can have various modifications and variations. AllWithin the spirit and principles in the present invention, any amendment of doing, be equal to replacement, improvement etc.,Within all should being included in protection scope of the present invention.
Claims (7)
1. an energy-saving environmental-protection boiler exhaust emissions tower, is characterized in that,
Comprise discharge tower body, wherein:
The middle part, bottom of described discharge tower body is provided with tail gas and flows into flue and tail gasHeat reclamation device; Described tail gas flows into one end and the boiler room exhaust emission pipeline of flueBe communicated with, described tail gas flows into the other end of flue and the table of described exhaust gas heat retracting deviceFace contact; The bottom surrounding of described discharge tower body is provided with outdoor cold wind import;The cold air entering from described outdoor cold wind import and process exhaust gas heat retracting deviceBoiler exhaust gas after reason leads to the middle part head-on collision chamber of described discharge tower body jointly;
The top of described discharge tower body from middle part to both sides distribute be provided with two wholeThe exhaust uptake that body is S-shaped, both sides, top are provided with mixed tail gas outlet; Described SThe arrival end of the exhaust uptake of shape is communicated with middle part head-on collision chamber, the exhaust of described S shapeThe port of export of flue is communicated with mixed tail gas outlet;
On the walling of flue of the exhaust uptake of described S shape, be all equipped with for adsorbing solidThe absorption baffle plate of particle.
2. energy-saving environmental-protection boiler exhaust emissions tower as claimed in claim 1, its feature existsIn,
Described absorption baffle plate comprises metal screen or filter paper, active carbon filter plate, electrostatic precipitatorDirt device; Described absorption baffle plate and described discharge tower body removably connect.
3. energy-saving environmental-protection boiler exhaust emissions tower as claimed in claim 1, its feature existsIn,
Described mixed tail gas exit is also provided with the absorption blinds of eliminating the noise, and described noise elimination is inhaledAttached blinds and described discharge tower body removably connect.
4. energy-saving environmental-protection boiler exhaust emissions tower as claimed in claim 1, its feature existsIn,
Described tail gas flows into flue outer wall and is provided with flue layer.
5. energy-saving environmental-protection boiler exhaust emissions tower as claimed in claim 1, its feature existsIn,
Described discharge tower body comprises cuboid tower body and herringbone tower lid; Described lengthSide's bodily form tower body and herringbone tower lid are color steel and build.
6. energy-saving environmental-protection boiler exhaust emissions tower as claimed in claim 5, its feature existsIn,
The bottom of described discharge tower body is also provided with grounding-for-lightning device.
7. energy-saving environmental-protection boiler exhaust emissions tower as claimed in claim 6, its feature existsIn,
The front of described discharge tower body is also provided with repair and maintenance door.
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| CN104048306B true CN104048306B (en) | 2016-05-18 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105484835A (en) * | 2016-01-09 | 2016-04-13 | 中航长沙设计研究院有限公司 | Ground test tail gas heat recycling and silencing tower for aero-engine |
| CN107376578A (en) * | 2017-06-29 | 2017-11-24 | 北京建筑大学 | The demister and method of a kind of flue tail gas |
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| CN202927862U (en) * | 2012-11-27 | 2013-05-08 | 甘肃科能热力设备研发有限公司 | Heat exchanger and waste gas treatment integrated device |
| CN203963979U (en) * | 2014-07-07 | 2014-11-26 | 新疆中云智能科技有限公司 | Energy-saving environmental-protection boiler exhaust emissions tower |
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| EP1031791A1 (en) * | 1999-02-22 | 2000-08-30 | Hiroshi Owa | Smoke treatment apparatus and smoke treatment system using smoke treatment apparatus |
| WO2001000303A1 (en) * | 1999-06-24 | 2001-01-04 | Alstom Power Inc. | Selective catalytic reduction system for a fossil fuel-fired furnace operation |
| CN2789607Y (en) * | 2005-05-03 | 2006-06-21 | 祁孙成 | Smoke and dust cleaner |
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Effective date of registration: 20190715 Address after: 400041 No. 7-8, No. 1, Keyuan No. 3 Road, Jiulongpo District, Chongqing Patentee after: Chongqing hot suitable energy saving and Environmental Protection Technology Co., Ltd. Address before: Room C417, Office Building, No. 94 Huarun Building, Wuchang Road, Urumqi Economic and Technological Development Zone, Xinjiang Uygur Autonomous Region, 838000 Patentee before: Xinjiang medium cloud intelligence Science and Technology Ltd. |