CN108518698A - Smoke catalytic recycling device - Google Patents
Smoke catalytic recycling device Download PDFInfo
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- CN108518698A CN108518698A CN201810347832.9A CN201810347832A CN108518698A CN 108518698 A CN108518698 A CN 108518698A CN 201810347832 A CN201810347832 A CN 201810347832A CN 108518698 A CN108518698 A CN 108518698A
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- Prior art keywords
- gas
- bellows
- boiler
- catalytic
- recycling device
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- 230000003197 catalytic effect Effects 0.000 title claims abstract description 31
- 239000000779 smoke Substances 0.000 title claims abstract description 19
- 238000004064 recycling Methods 0.000 title claims abstract description 16
- 239000007789 gas Substances 0.000 claims abstract description 73
- 239000003546 flue gas Substances 0.000 claims abstract description 31
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims abstract description 27
- 238000002485 combustion reaction Methods 0.000 claims abstract description 17
- 238000004140 cleaning Methods 0.000 claims abstract description 14
- 239000002737 fuel gas Substances 0.000 claims abstract description 5
- 230000001256 tonic effect Effects 0.000 claims description 5
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 abstract description 62
- 238000012544 monitoring process Methods 0.000 abstract description 4
- 239000002341 toxic gas Substances 0.000 abstract description 3
- 239000000571 coke Substances 0.000 description 37
- 238000005516 engineering process Methods 0.000 description 17
- 238000000034 method Methods 0.000 description 10
- GQPLMRYTRLFLPF-UHFFFAOYSA-N Nitrous Oxide Chemical compound [O-][N+]#N GQPLMRYTRLFLPF-UHFFFAOYSA-N 0.000 description 9
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 7
- 229910052760 oxygen Inorganic materials 0.000 description 7
- 239000001301 oxygen Substances 0.000 description 7
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 6
- 230000008859 change Effects 0.000 description 6
- 238000004519 manufacturing process Methods 0.000 description 6
- 238000002156 mixing Methods 0.000 description 6
- 239000003054 catalyst Substances 0.000 description 5
- 239000003638 chemical reducing agent Substances 0.000 description 5
- 235000019504 cigarettes Nutrition 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 230000006872 improvement Effects 0.000 description 4
- 229910021529 ammonia Inorganic materials 0.000 description 3
- 238000010531 catalytic reduction reaction Methods 0.000 description 3
- 239000000567 combustion gas Substances 0.000 description 3
- 230000009977 dual effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 230000008030 elimination Effects 0.000 description 3
- 238000003379 elimination reaction Methods 0.000 description 3
- 239000003344 environmental pollutant Substances 0.000 description 3
- 239000000446 fuel Substances 0.000 description 3
- 231100000719 pollutant Toxicity 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003814 drug Substances 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 238000007726 management method Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000006722 reduction reaction Methods 0.000 description 2
- 239000007921 spray Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 1
- UCKMPCXJQFINFW-UHFFFAOYSA-N Sulphide Chemical compound [S-2] UCKMPCXJQFINFW-UHFFFAOYSA-N 0.000 description 1
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 description 1
- 238000003916 acid precipitation Methods 0.000 description 1
- 239000000908 ammonium hydroxide Substances 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 239000004202 carbamide Substances 0.000 description 1
- 238000003763 carbonization Methods 0.000 description 1
- 238000006555 catalytic reaction Methods 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000005474 detonation Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000003500 flue dust Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000003999 initiator Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 238000012805 post-processing Methods 0.000 description 1
- QQONPFPTGQHPMA-UHFFFAOYSA-N propylene Natural products CC=C QQONPFPTGQHPMA-UHFFFAOYSA-N 0.000 description 1
- 125000004805 propylene group Chemical group [H]C([H])([H])C([H])([*:1])C([H])([H])[*:2] 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G7/00—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals
- F23G7/06—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases
- F23G7/07—Incinerators or other apparatus for consuming industrial waste, e.g. chemicals of waste gases or noxious gases, e.g. exhaust gases in which combustion takes place in the presence of catalytic material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/50—Control or safety arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Chimneys And Flues (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
The present invention relates to smoke catalytic recycling device, including boiler, the burner being connected with boiler, for the bellows of burner delivery of fuel gas, and the gas cleaning exhaust system positioned at upper boiler, the gas cleaning exhaust system includes gas inlet pipeline, catalytic tower, on-line computing model, exhanst gas outlet pipeline and cycle air hose, catalytic tower lower part is connected by gas inlet pipeline with boiler, top is connected with exhanst gas outlet pipeline, on-line computing model is arranged in the top of catalytic tower, cycle air hose one is connected to the side of exhanst gas outlet pipeline, other end is connected to bellows, return air motor-driven valve is set on cycle air hose, bellows motor-driven valve is set on bellows.Flue gas is connected to by the present invention by recycling air hose with bellows, by monitoring nitrogen oxides in effluent content in real time, nitrogen oxide emission is scaled automatically and reaches setting value, and meets boiler normal combustion simultaneously.Gas cleaning efficiency is effectively increased, noxious gas emission is reduced.
Description
Technical field
The present invention relates to flue gases purification field more particularly to smoke catalytic recycling device.
Background technology
The pollutant of coke oven smoke stack emission is mainly SO2、NOxAnd flue dust etc., pollutant is in overhead point source continuity in a organized way
Discharge is one of the primary pollution source for polluting air.Combustion gas can generate nitrogen oxides NO when coke oven vertical flame path burnsx, by it
The mechanism of generation point has three kinds of temperature heating power type, hydrocarbon fuel Quick-type and oxygen-containing component fuel type.When coefficient of excess air α=
1.1, when air preheat is to 1100 DEG C, 2350 DEG C of coke-stove gas theoretical temperature combustion, blast furnace gas theoretical temperature combustion is 2150
℃.It is generally acknowledged that actual combustion temperature will be less than this value, actual combustion temperature is built between theoretical temperature combustion and the quirk of measurement
Between temperature.Ignition temperature is to temperature thermal NOxGeneration has conclusive effect.When ignition temperature is less than 1500 DEG C,
NOxAmount is seldom, but when temperature is higher than 1500 DEG C, NOxAmount exponentially increases sharply, and coke-stove gas actual combustion temperature
At 1800 DEG C or so, nitrogen oxides yield will be more than 3000ppm.Nitrogen oxides (NOx) include NO, NO2、N2O、N2O3、N2O4
Deng.NOxIt is one of the initiator of photochemical fog, forms photochemical fog and acid rain by complicated chemical change, endanger people
Class health and destruction ecological environment.What on October 1st, 2012 implemented《Coking chemistry emission of industrial pollutants standard》To coke oven NOx
Discharging has strict demand, NO in coke oven smoke stack emission exhaust gasXContent is that newly-built enterprise executes 500mg/m3；Existing enterprise executes
800mg/m3(the execution time is to stop on October 1st, 2012 to 2014 annual December 31, and 500mg/ is executed from 1 day January in 2015
m3), in depth study the low NO of coke ovenxCombustion technology shows important especially.Coke oven is mainly used to produce the coke of high quality, fuel master
To be blast furnace gas or coke-stove gas, in recent years coke oven flue gas NOxDischarge index continues not up to standard to have caused enterprise's height weight
Depending on various control measures are born in succession, but regulation effect is not obvious.
Main flume exhaust gas denitration technology is broadly divided into watershed management and end treatment.It is now industrial widely applied de-
Nitre technology SCR (selective catalytic reduction) and SNCR (selective non-catalytic reduction method) is end-of-pipe control technology.But
SNCR denitration efficiency is low, is usually no more than 70%, and reducing agent consumption used is larger, while SNCR methods are in burner hearth internal spray
Reducing agent can impact production technology.The characteristics of coke oven production technique, does not allow to carry out spray ammonia in the inside of coke oven de-
Nitre, therefore SNCR methods are not suitable for the denitration of coke oven flue gas (exhaust gas).SCR is gradually applied to fire coal since the early 1980s
Denitration of boiler smoke has been acknowledged as the mainstream technology of denitrating flue gas so far.Selective catalytic reduction
(SelectiveCatalyticReduction, SCR) technology is a kind of commercial NO of maturationxControl process technology.Denitration is former
Reason is sprayed into the reducing agent containing ammonia in flue gas, under the effect of the catalyst, reducing agent is selectively at 280-400 DEG C
The NO in flue gasXIt is reduced to nontoxic and pollution-free N2And H2O, reducing agent can be liquefied ammonia, ammonium hydroxide, urea, hydrocarbon
(such as methane, propylene) etc., but SCR investments height, the production of used catalyst and post processing cost are also relatively high, coke oven
Flue-gas temperature is relatively low, and sulfide and moisture therein are affected to catalyst, when SCR method is applied to coke oven denitration, exists
The problems such as space is small is transformed.Watershed management mainly uses circulating technology in sectional combustion technology and flue gas, but for having thrown
The coke oven of production, coke oven construction can not change, and the difficulty of Optimizing Reconstruction is larger, and therefore, it is difficult to use in sectional combustion technology and flue gas
Circulating technology solves the problems, such as coke oven discharged nitrous oxides.
Solve the problems, such as that the technical solution of coke oven discharged nitrous oxides is also disclosed using flue gas recirculation technology in the prior art,
Such as 105295962 A of patent CN disclose a kind of method of reduction coke oven flue nitrogen oxides of exhaust gas discharge, including it is as follows
Step：(1) circulating flue gas of oxygen and coke oven is passed through in air mixing equipment and is mixed, become mixing combustion-supporting gas, mix combustion-supporting gas
O in body2Content 0-100%；(2) coke-stove gas and mixing combustion-supporting gas are passed into after burning in coke oven combustion chamber and generate coke
Stove stack gases；(3) the coke oven flue exhaust gas generated in step (2) is after heat exchanger cools down, a part of coke oven flue exhaust gas
Enter after air mixing equipment is mixed with pure oxygen through flue gas recirculation blower fan and generates mixing combustion-supporting gas participation burning, another part coke oven cigarette
Road exhaust gas enters chimney direct emission after smoke exhaust fan.This application controls the nitrogen oxidation of coke oven flue exhaust gas from source
Object generates, and N is avoided by using pure oxygen and circulating flue gas mixing2Introducing, make coke oven flue nitrogen oxides of exhaust gas discharge
Meet national standard, but still has the following defects：(1) use oxygen manufacturing cost it is higher, transport and store it is cumbersome,
Coke oven production bad environments, oxygen conveying are dangerous higher；(2) it after oxygen is mixed with the fuel gas in flue gas, is then fed into
Coke oven combustion, this process are equivalent to premixed combustion, and combustion flame shortens, and carbonization chamber temperature uniformity reduces, and influences coke quality；
(3) outer circulation flue-gas temperature is higher, containing a small amount of fuel gas, in oxygen and outer circulation flue gas mixed process there are detonation can
Energy.
105670650 A of patent CN disclose a kind of device that reduction coke oven nitrogen oxides generates, including dual direction axial wind
Mechanical, electrical gas control system, measuring device, what dual direction axial wind turbine was set to coke oven divides flue corridor, an air port to pass through pipe
Road is connected to the exhaust steam passage of coke oven, another air port is connected to by pipeline with the air duct of coke oven；Electric control system control
The rotating speed of dual direction axial wind turbine processed turns to；Measuring device detects the concentration of the nitrogen oxides of exhaust gas in pipeline.This application is not
With the internal structure for changing coke oven, the nitrous oxides concentration and nitrogen oxides Absolute emissions amount of exhaust gas are can significantly reduce, improves enterprise
Industry ambient atmosphere environment.But this application uses a bidirectional circulating wind turbine, each charcoal among two groups of make and break regulating valves
To change room and need two circulating fans, needs Fans more than 100 in work progress, investment cost and operating cost is relatively high, and
And fan operation noise is larger, influences manual operation.
In conclusion how to combine the structure of operation coke oven, inexpensive, low difficulty of construction existing coke oven is carried out excellent
Change transformation, solve the problems, such as coke oven discharged nitrous oxides, be in the prior art urgent need to resolve the technical issues of.
Invention content
Technical problem to be solved by the invention is to provide a kind of smoke catalytic recycling device, to overcome the prior art to deposit
Drawbacks described above.
In order to solve the above technical problems, the present invention realizes by the following technical solutions：
Smoke catalytic recycling device, including boiler, the burner being connected with the boiler convey for the burner
The bellows of combustion gas, and positioned at the gas cleaning exhaust system of the upper boiler, the gas cleaning exhaust system includes cigarette
Gas inlet pipeline, catalytic tower, on-line computing model, exhanst gas outlet pipeline and cycle air hose, the catalytic tower lower part passes through the cigarette
Gas inlet pipeline is connected with boiler, and top is connected with the exhanst gas outlet pipeline, and the on-line computing model setting is urged described
Change the top of tower, the cycle air hose one is connected to the side of the exhanst gas outlet pipeline, and other end is connected to the bellows,
Return air motor-driven valve is set on the cycle air hose, bellows motor-driven valve is set on the bellows.
Further include an automatic control system as a preferred technical solution, the automatic control system includes at least a control
Unit processed, the input terminal of described control unit are connect with the output end of the on-line computing model, the output end of described control unit
It is connect respectively with the return air motor-driven valve and bellows motor-driven valve.
Flue gas pressures sensor is set on the gas inlet pipeline as a preferred technical solution,.
As a preferred technical solution, thermometer is additionally provided on the gas inlet pipeline.
The catalytic tower is connected to by pipeline with tonic case as a preferred technical solution, and dosing is arranged on pipeline
Pump.
The bellows bottom is also provided with noise elimination filter cover as a preferred technical solution,.
The level height of the on-line computing model is not higher than the cycle air hose and the cigarette as a preferred technical solution,
The connector of gas outlet conduit.
Flue gas is connected to bellows by recycling air hose, is led on the basis of original catalytic reducing smoke technique by the present invention
Monitoring nitrogen oxides in effluent content in real time is crossed, when nitrogen oxides is higher than setting value, the return air electricity of control loop air hose opening and closing
Dynamic valve is opened in proportion, and the bellows motor-driven valve of control bellows air quantity is closed in proportion, and discharged nitrous oxides are scaled automatically
Amount reaches setting value, and meets boiler normal combustion simultaneously.Gas cleaning efficiency is effectively increased, noxious gas emission is reduced,
And it is easy to optimize original filtration system, improvement cost is low.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention without having to pay creative labor, may be used also for those of ordinary skill in the art
With obtain other attached drawings according to these attached drawings.
Fig. 1 is the structural schematic diagram of the embodiment of the present invention；
Fig. 2 is the structural schematic diagram of automatic control system in a preferred embodiment of the invention.
In figure：1- boilers；2- burners；3- bellows；31- bellows motor-driven valves；4- gas cleaning exhaust systems；41- flue gases
Inlet pipeline；42- catalytic towers；43- on-line computing models；44- exhanst gas outlet pipelines；45- recycles air hose；451- return air motor-driven valves；
46- connectors；47- automatic control systems；471- display screens；472- control units；473- operating platforms；5- flue gas pressures sense
Device；6- thermometers；7- environmental protection tests hole；8- tonic casees；81- dosing pumps；9- noise elimination filter covers.
Specific implementation mode
As shown in Figure 1, smoke catalytic recycling device of the present invention, including boiler 1, the burning being connected with the boiler 1
Device 2 is the bellows 3 of the burner delivery of fuel gas, bellows motor-driven valve 31 is arranged on bellows 3, to adjust bellows air quantity；It is located at
The gas cleaning exhaust system 4 on 1 top of the boiler, the gas cleaning exhaust system 4 include gas inlet pipeline 41, catalysis
Tower 42, on-line computing model 43, exhanst gas outlet pipeline 44 and cycle air hose 45, injecting catalyst in the catalytic tower 42 pass through pipe
Road is connected to tonic case 8, and dosing pump 81 is arranged on pipeline；Its underpart passes through the gas inlet pipeline 41 and 1 phase of boiler
Connection, top are connected with the exhanst gas outlet pipeline 44, and the on-line computing model 43 is arranged in the top of the catalytic tower 42,
Level height is used for not higher than the connector 46 of the cycle air hose 45 and the exhanst gas outlet pipeline 44 in monitoring flue gas in real time
The content of the gases such as oxygen and nitrogen oxides；The cycle air hose 45 1 is connected to the side of the exhanst gas outlet pipeline 44,
Other end is connected to the bellows 3, return air motor-driven valve 451 is arranged on the cycle air hose 45, the return air motor-driven valve 451 can
The flow velocity of flue gas flow direction bellows in control loop air hose；It is additionally provided with thermometer 6 on the gas inlet pipeline 41, with real-time
Flue-gas temperature of the monitoring into gas cleaning exhaust system 4.
Working principle of the present invention is as follows：Burner 2 works, and combustion gas and combustion-supporting gas inject burner 2 by bellows 3 and make
Boiler 1 brings into operation, and flue-gas temperature is detected by thermometer 6, and when exhaust gas temperature is more than 120 DEG C, dosing pump 81 is started to work,
Medicament in tonic case 8 is pumped into catalytic tower 42, flue gas is entered by gas inlet pipeline 41 in catalytic tower 42, nitrogen therein
Oxide starts to react with medicament.Nitrogen oxides in effluent content is monitored in real time by on-line computing model 43, when nitrogen oxides height
When setting value, the return air motor-driven valve 451 that control loop air hose 45 is opened and closed is opened in proportion, controls the bellows electricity of 3 air quantity of bellows
Dynamic valve 31 is closed in proportion, and nitrogen oxide emission is scaled and reaches setting value, and meets boiler normal combustion simultaneously.Through
Catalytic purification flue gas up to standard is discharged outward by exhanst gas outlet pipeline 44.
As a preferred embodiment, automatic control system automatic adjustment return air motor-driven valve 451 and bellows electricity may be used
Dynamic valve 31, it is specific as shown in Fig. 2, further including an automatic control system 47, the automatic control system 47 includes control unit
472, and the display screen 471 and operating platform 473 that are connect respectively with described control unit 472, described control unit 472 it is defeated
Enter end to connect with the output end of the on-line computing model 43, the output end of described control unit 472 is electronic with the return air respectively
Valve 451 and bellows motor-driven valve 31 connect.
When work, the amount of nitrogen oxides value detected is passed through electric signal transmission to control unit by on-line computing model 43
472, control unit 472 is converted into digital signal and is transferred on display screen 471, and site operation personnel can pass through operation
Platform 473 inputs nitrogen oxides setting value according to actual condition, and control unit 472 monitors in real time according to preset control software
Amount of nitrogen oxides, when nitrogen oxides is higher than setting value, control unit 472 is electronic to return air motor-driven valve 451 and bellows respectively
Valve 31 export electric signal instruction, automatically control return air motor-driven valve 451 and open in proportion, and automatically control bellows motor-driven valve 31 by than
Example is closed；When nitrogen oxides is less than setting value, control unit 472 is defeated to return air motor-driven valve 451 and bellows motor-driven valve 31 respectively
Go out electric signal instruction, automatically controls return air motor-driven valve 451 and close in proportion, and automatically control bellows motor-driven valve 31 and beat in proportion
It opens；To realize, nitrogen oxide emission, which is scaled, reaches setting value automatically.
As a preferred embodiment, flue gas pressures sensor 5 is set on the gas inlet pipeline 41, passes through the cigarette
Air pressure force snesor 5 can monitor pressure of the flue gas in gas cleaning exhaust system 4 in real time, to control air door opening and closing, make pot
Stove does not generate the resistance of bigger because of addition catalyst.Environmental protection test hole can be set on the exhanst gas outlet pipeline 44 in addition
7, it whether up to standard is discharged convenient for third party's detection gas.
As a preferred embodiment, 3 bottom of the bellows is also provided with noise elimination filter cover 9, can reduce bellows noise.
The present invention effectively increases gas cleaning efficiency, reduces noxious gas emission, and be easy to original filtration system
It optimizes, improvement cost is low.
The basic principles and main features and advantages of the present invention of the present invention have been shown and described above.The technology of the industry
Personnel are it should be appreciated that the present invention is not limited to the above embodiments, and the above embodiments and description only describe this
The principle of invention, without departing from the spirit and scope of the present invention, various changes and improvements may be made to the invention, these changes
Change and improvement all fall within the protetion scope of the claimed invention.The claimed scope of the invention by appended claims and its
Equivalent thereof.
Claims (7)
1. smoke catalytic recycling device, including boiler (1), the burner (2) being connected with the boiler (1) are the combustion
The bellows (3) of burner delivery of fuel gas, and the gas cleaning exhaust system (4) positioned at the boiler (1) top, feature exists
In the gas cleaning exhaust system (4) includes gas inlet pipeline (41), catalytic tower (42), on-line computing model (43), flue gas
Outlet conduit (44) and cycle air hose (45), catalytic tower (42) lower part passes through the gas inlet pipeline (41) and boiler
(1) it is connected, top is connected with the exhanst gas outlet pipeline (44), and the on-line computing model (43) is arranged in the catalytic tower
(42) top, the cycle air hose (45) one are connected to the side of the exhanst gas outlet pipeline (44), other end with it is described
Bellows (3) are connected to, and return air motor-driven valve (451) is arranged on the cycle air hose (45), and setting bellows are electronic on the bellows (3)
Valve (31).
2. smoke catalytic recycling device as described in claim 1, which is characterized in that further include an automatic control system
(47), the automatic control system (47) include at least a control unit (472), the input terminal of described control unit (472) with
The output end of the on-line computing model (43) connects, the output end of described control unit (472) respectively with the return air motor-driven valve
(451) it is connected with bellows motor-driven valve (31).
3. smoke catalytic recycling device as described in claim 1, which is characterized in that on the gas inlet pipeline (41)
Flue gas pressures sensor (5) is set.
4. smoke catalytic recycling device as described in claim 1, which is characterized in that on the gas inlet pipeline (41)
It is provided with thermometer (6).
5. smoke catalytic recycling device as described in claim 1, which is characterized in that the catalytic tower (42) by pipeline with
Tonic case (8) is connected to, and dosing pump (81) is arranged on pipeline.
6. smoke catalytic recycling device as described in claim 1, which is characterized in that bellows (3) the bottom setting is eliminated the noise
Filter mantle (9).
7. smoke catalytic recycling device as described in claim 1, which is characterized in that the level of the on-line computing model (43)
Connector (46) of the height not higher than cycle air hose (45) and the exhanst gas outlet pipeline (44).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810347832.9A CN108518698A (en) | 2018-04-18 | 2018-04-18 | Smoke catalytic recycling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810347832.9A CN108518698A (en) | 2018-04-18 | 2018-04-18 | Smoke catalytic recycling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108518698A true CN108518698A (en) | 2018-09-11 |
Family
ID=63428837
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810347832.9A Pending CN108518698A (en) | 2018-04-18 | 2018-04-18 | Smoke catalytic recycling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108518698A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109489033A (en) * | 2018-11-16 | 2019-03-19 | 广东宝杰环保科技有限公司 | The low nitrogen processing method of biogas combustion tail gas and burner apparatus |
| CN111503652A (en) * | 2020-05-26 | 2020-08-07 | 南通新邦化工科技有限公司 | Boiler tail gas transformation air intake interlock on-line detection device |
| CN113188136A (en) * | 2021-04-28 | 2021-07-30 | 湖北科谱瑞环境资源科技有限公司 | Catalytic combustion furnace capable of reducing heat waste and using method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN113188136A (en) * | 2021-04-28 | 2021-07-30 | 湖北科谱瑞环境资源科技有限公司 | Catalytic combustion furnace capable of reducing heat waste and using method thereof |
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Application publication date: 20180911 |