CN208312408U - The device of emission limits of nitrogen oxides in a kind of reduction carbon black smoke - Google Patents
The device of emission limits of nitrogen oxides in a kind of reduction carbon black smoke Download PDFInfo
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- CN208312408U CN208312408U CN201820928510.9U CN201820928510U CN208312408U CN 208312408 U CN208312408 U CN 208312408U CN 201820928510 U CN201820928510 U CN 201820928510U CN 208312408 U CN208312408 U CN 208312408U
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Abstract
The device of emission limits of nitrogen oxides in a kind of reduction carbon black smoke, including carbon black tail gas furnace, carbon black tail gas pipe, tail gas furnace primary wind pipe, automatic ignition device, drying machine fire-box, dryer drum, big valve, exhaust gas booster fan, exhaust gas bag hose, secondary air-valve, exhaust gas blow-down stack, small valve, wet granulator, exhaust valve, exhaust gas blowdown stack, secondary air flow control valve, Secondary Air pressurization frequency conversion fan, Secondary Air conveyance conduit, gas mixer and gas distributor.The present apparatus uses draught exclusion device, after lighting, will not be gone out by wind, ensure that safety, stability and the reliability of device；So that flue gas contains NO at exhaust gas bag hose exhaust gas blow-down stackXFlue gas contains NO to concentration than beforeXConcentration about low 90% reaches 40-60ppm level, has reached the requirement of green production.
Description
Technical field
The utility model relates to nitrogen oxides tail gas field, discharged nitrous oxides are limited in specially a kind of reduction carbon black smoke
The device of value.
Background technique
Carbon black is important the raw material of industry, is widely used in all trades and professions, becomes a kind of indispensable industrial products.
For carbon black yield also in cumulative year after year, the development of carbon black industry promotes social progress, but also increases rely us simultaneously
With the pollution of the natural environment of existence.
The carbon black tail gas generated in carbon black process contains a large amount of nitrogen oxides (NOX) be atmosphere major pollutants
One of, it can lead to the formation of photochemical fog and acid rain, the ecosystem can be damaged；Nitrogen oxides also harmful to human is strong
Health can cause to have a headache, deteriorate respiratory disease, serious to will cause death, cause sternly to the sustainable development of China's economy
The environmental pressure of weight.2 months 2012, State Council issued the ambient air quality mark of the whole nation implementation on January 1st, 2016
Quasi- GB3095-2012, has further tightened NOXConcentration limit, with improved day by day and people's environmental consciousness of environmental regulation
Raising, NOXDischarge standard is also higher and higher.For denitration, the country continues to use always external general the last century 70's
SCR and SNCR technology, just not saying its efficiency is unstable, the investment high problem with operating cost greatly, and it is single with regard to both technologies itself
Also nitrogen oxides is only reduced into nitrogen to return in the air, No Assetsization utilize.
Therefore, the requirement for developing more economical, more efficient denitrating technique and its device to meet carbon black smoke denitration is aobvious
It obtains particularly important.
Summary of the invention
The problem of being proposed according to background technique now provides a kind of dress for reducing emission limits of nitrogen oxides in carbon black smoke
Set, be transformed in original Equipment Foundations, increase gas mixer device, automatic ignition device, gas distributor device,
Exhaust gas flow control valve and exhaust gas pressurization frequency conversion fan, by the way that clean flue gas afterwards is re-circulated to tail as secondary air feed
Steam stove carries out second-time burning, so that flue gas contains NO at exhaust gas bag hose exhaust gas blow-down stackXFlue gas contains NO to concentration than beforeXConcentration
About low 90%, reach 40~60ppm level.Next the device for reducing emission limits of nitrogen oxides in carbon black smoke is done into one
Step is illustrated.
The device of emission limits of nitrogen oxides in a kind of reduction carbon black smoke, including carbon black tail gas furnace, carbon black tail gas pipe, tail
Steam stove primary wind pipe, automatic ignition device, drying machine fire-box, dryer drum, big valve, exhaust gas booster fan, the filter of exhaust gas bag
Device, secondary air-valve, exhaust gas blow-down stack, small valve, wet granulator, exhaust valve, exhaust gas blowdown stack, secondary air flow control
Valve, Secondary Air pressurization frequency conversion fan, Secondary Air conveyance conduit, gas mixer and gas distributor；Carbon black tail gas furnace one end
Bottom connects carbon black tail gas pipe, automatic ignition device, and the other end connects the bottom of drying machine fire-box；Run through in drying machine fire-box and sets
There is dryer drum, top connects exhaust gas blow-down stack by being equipped with the pipeline of exhaust valve, passes through again at the top of drying machine fire-box and set
There is the pipeline connection exhaust gas booster fan of small valve；Carbon black discharge port is arranged in one end of dryer drum, and other end connection wet process is made
Grain machine, and the pipeline by being equipped with big valve is connected to the pipeline for being equipped with small valve；Exhaust gas booster fan is connect with exhaust gas bag hose, is given up
Exhaust gas blowdown stack is connected by being equipped with the pipeline of secondary air-valve at the top of airbag filter；Pass through Secondary Air again at the top of exhaust gas bag hose
Conveyance conduit connects Secondary Air pressurization frequency conversion fan, and Secondary Air pressurization frequency conversion fan passes through the pipe for being equipped with secondary air flow control valve
Road connects the side of gas mixer, and the bottom of gas mixer is equipped with air inlet, and top is connected to carbon black tail gas furnace close to charcoal
One end of black tail tracheae；Gas distributor is equipped with close to carbon black tail gas pipe in carbon black tail gas furnace.
Further, NO is equipped in the exhaust gas blowdown stackXResearch and application instrument；The NO in tail gas can be detectedXConcentration.
Further, denitrification apparatus is connected at the top of the exhaust gas blowdown stack；Structure is simple, and space occupancy volume is few, investment
Few, operating cost is low, is easily installed, is easy to repair, and can dispel the NO in tail gasXPernicious gas.
It the utility model has the advantages that compared with prior art, the present apparatus uses draught exclusion device, after lighting, will not be gone out, guarantee by wind
The safety of device, stability and reliability；So that flue gas contains NO at exhaust gas bag hose exhaust gas blow-down stackXConcentration compared with
Preceding flue gas contains NOXConcentration about low 90% reaches 40-60ppm level, has reached the requirement of green production；The present apparatus is original
Part change is carried out in Equipment Foundations, structure is simple, and space occupancy volume is few, and small investment, operating cost is low, is easily installed, is convenient for
Maintenance, solves that equipment for denitrifying flue gas severe reaction conditions after the burning of existing carbon black tail gas, cost of investment is high, denitrification rate is low asks
Topic.
Detailed description of the invention
Fig. 1: the structural schematic diagram of the present apparatus；
In figure: 1- carbon black tail gas furnace；2- carbon black tail gas pipe；3- tail gas furnace primary wind pipe；4- gas mixer；5- is automatic
Igniter；6- gas distributor；7- drying machine fire-box；8- dryer drum；The big valve of 9-；10- exhaust gas booster fan；11- is useless
Airbag filter；No. bis- air-valves of 12-；13- exhaust gas blow-down stack；The small valve of 14-；15- wet granulator；16- exhaust valve；17- bis- times
Distinguished and admirable control valve；18- Secondary Air pressurization frequency conversion fan；19- Secondary Air conveyance conduit；20-NOXResearch and application instrument；21- exhaust gas
Blowdown stack.
Specific embodiment
Now in conjunction with attached drawing 1, one embodiment of the present apparatus is set forth.
The device of emission limits of nitrogen oxides in a kind of reduction carbon black smoke, including carbon black tail gas furnace 1, carbon black tail gas pipe 2,
Tail gas furnace primary wind pipe 3, gas mixer 4, automatic ignition device 5, gas distributor 6, drying machine fire-box 7, drying machine rolling
Cylinder 8, big valve 9, exhaust gas booster fan 10, exhaust gas bag hose 11, secondary air-valve 12, exhaust gas blow-down stack 13, small valve 14, wet process are made
Grain machine 15, exhaust valve 16, secondary air flow control valve 17, Secondary Air pressurization frequency conversion fan 18, Secondary Air conveyance conduit 19, NOX
Research and application instrument 20 and exhaust gas blowdown stack 21.
1 one end bottom of carbon black tail gas furnace connects carbon black tail gas pipe 2, the side of close carbon black tail gas pipe 2 in carbon black tail gas furnace 1
Equipped with automatic ignition device 5 and gas distributor 6；For carbon black tail gas in addition to being mostly used in power plant power generation, there are also be partially used as
The dry required combustion material of itself finished product, this part carbon black tail gas are burnt by carbon black tail gas pipe 2 into carbon black tail gas furnace 1.
The bottom of drying machine fire-box 7 is connected at the top of 1 other end of carbon black tail gas furnace, running through in drying machine fire-box 7 has drying machine
Roller 8, the part that dryer drum 8 is located at outside drying machine fire-box 7 are connected with wet granulator 15；What wet granulator 15 was made
Carbon black pellet is the combustion tail gas from charcoal carbon black tail gas furnace 1 in obtaining drying, dry heat source in drying machine fire-box 7.
One end of dryer drum 8 is equipped with carbon black discharge port, and the carbon black being oven-dried is discharged from carbon black discharge port, and the other end is
The pipeline of dryer drum 8 is stretched out, pipeline is equipped with big valve 9.
The top of drying machine fire-box 7 connects exhaust gas blow-down stack 13 by pipeline, is vented cigarette in drying machine fire-box 7 and exhaust gas
Exhaust valve 16 is equipped between chimney 13, exhaust valve 16 to the connecting pipe between drying machine fire-box 7 passes through the pipeline equipped with small valve 14
It is connected to the pipeline for being equipped with big valve 9, exhaust gas booster fan 10 is connected to after connection, exhaust gas booster fan 10 connects the filter of exhaust gas bag
The lower part of device 11；Carbon black tail gas enters the flue gas after tail gas furnace burning, can be by being equipped with the pipeline of small valve 14 and being equipped with big valve
Vapor that pipeline comes, carbon powder dust mixing, the effect that exhaust gas booster fan 10 is led to after mixing enter exhaust gas bag hose 11.
Closed bag hose is equipped in exhaust gas bag hose 11, the top of exhaust gas bag hose 11 connects exhaust gas discharge by pipeline
Chimney 21, pipeline are equipped with secondary air-valve 12.
The top of exhaust gas bag hose 11 passes through Secondary Air conveyance conduit 19 again and connects Secondary Air pressurization frequency conversion fan 18, secondary
The wind frequency conversion fan 18 that pressurizes connects the side of gas mixer 4 by pipeline, the bottom of gas mixer 4 equipped with First air into
Mouthful, top is connected to the side of the close carbon black tail gas pipe 2 of carbon black tail gas furnace 1；The mixing of First air, Secondary Air and carbon black tail gas
Gas enters carbon black tail gas furnace burner hearth by the layering of gas distributor 6 and burns.
NO is equipped in exhaust gas blowdown stack 21XConcentration analysis monitor 20 detects the NO in tail gasXConcentration, exhaust gas discharge cigarette
Denitrification apparatus is connected at the top of chimney 21.
Working principle:
Firstly, opening exhaust valve 16, big valve 9 and small valve 14 are closed, dryer drum 8 is opened, opens secondary air-valve 12, is closed
Close secondary air flow control valve 17；
Then, to the First air for being passed through 500~800Nm3/h in carbon black tail gas furnace, by automatic ignition device 5 in carbon black
It lights a fire in the burner hearth of tail gas furnace 1, is passed through a small amount of carbon black tail gas into burner hearth after fire is lighted, operator is in flame-observing hole
Place's observation, after carbon black tail gas is ignited, middle control operator is heated up according to normal carbon black tail gas and First air ratio, heating
It is required in the process according to related process parameters, adjusts big valve 9, small valve 14 and exhaust valve 16.
Subsequently, when the fire box temperature of carbon black tail gas furnace 1 reaches 816 DEG C, Secondary Air pressurization frequency conversion fan 18 is opened, is led to
The frequency conversion size of adjustment Secondary Air pressurization frequency conversion fan 18 is crossed to control the pressure that Secondary Air enters carbon black tail gas furnace, according to needed for
The number of secondary air flow suitably closes secondary air-valve 12, and the flow of Secondary Air is controlled with secondary air flow control valve 17.
Finally, Secondary Air enters the gas distributor 6 of carbon black tail gas furnace 1 after mixing in gas mixer 4 with First air,
The gaseous mixture of First air, Secondary Air and carbon black tail gas is fired by the burner hearth that the layering of gas distributor 6 enters carbon black tail gas furnace 1
It burns, this plant automation degree is high, and can reduce NO effectively by the control of DS NOx Est amount within emission limitXTo environment
Pollution.
Following table be the present embodiment compared with prior art, the data comparison of improvement effect.
Embodiment 1:
Following table be another embodiment of the present apparatus compared with prior art, the data comparison of improvement effect.
Embodiment 2:
As can be seen that flue gas flow is greatly reduced containing NOx concentration in present apparatus tail gas, green production requirement is fully achieved.
Embodiment described above is only that preferred embodiments of the present invention are described, not practical to this
Novel range is defined, and under the premise of not departing from the spirit of the design of the utility model, those of ordinary skill in the art are to this
The various changes and improvements that the technical solution of utility model is made should all fall into the protection that the utility model claims book determines
In range.
Claims (3)
1. a kind of device for reducing emission limits of nitrogen oxides in carbon black smoke, including carbon black tail gas furnace, carbon black tail gas pipe, tail gas
Furnace primary wind pipe, automatic ignition device, drying machine fire-box, dryer drum, big valve, exhaust gas booster fan, exhaust gas bag hose,
Secondary air-valve, exhaust gas blow-down stack, small valve, wet granulator, exhaust valve and exhaust gas blowdown stack；The bottom of carbon black tail gas furnace one end
Portion connects carbon black tail gas pipe, automatic ignition device, and the other end connects the bottom of drying machine fire-box；Run through in drying machine fire-box and is equipped with
Dryer drum, top connect exhaust gas blow-down stack by being equipped with the pipeline of exhaust valve, pass through again at the top of drying machine fire-box and be equipped with
The pipeline of small valve connects exhaust gas booster fan；Carbon black discharge port is arranged in one end of dryer drum, and the other end connects wet granulation
Machine, and the pipeline by being equipped with big valve is connected to the pipeline for being equipped with small valve；Exhaust gas booster fan is connect with exhaust gas bag hose, exhaust gas
Exhaust gas blowdown stack is connected by being equipped with the pipeline of secondary air-valve at the top of bag hose；It is characterized by also including secondary air flows
Control valve, Secondary Air pressurization frequency conversion fan, Secondary Air conveyance conduit, gas mixer and gas distributor；The exhaust gas bag filter
Secondary Air pressurization frequency conversion fan is connected by Secondary Air conveyance conduit again at the top of device, Secondary Air pressurizes frequency conversion fan by being equipped with two
The side of the pipeline connection gas mixer of secondary distinguished and admirable control valve, the bottom of gas mixer are equipped with air inlet, top connection
To carbon black tail gas furnace close to one end of carbon black tail gas pipe；Gas distributor is equipped in carbon black tail gas furnace at carbon black tail gas pipe.
2. the device according to claim 1 for reducing emission limits of nitrogen oxides in carbon black smoke, it is characterised in that: described
NO is equipped in exhaust gas blowdown stackXResearch and application instrument.
3. the device according to claim 1 for reducing emission limits of nitrogen oxides in carbon black smoke, it is characterised in that: described
Denitrification apparatus is connected at the top of exhaust gas blowdown stack.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820928510.9U CN208312408U (en) | 2018-06-15 | 2018-06-15 | The device of emission limits of nitrogen oxides in a kind of reduction carbon black smoke |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820928510.9U CN208312408U (en) | 2018-06-15 | 2018-06-15 | The device of emission limits of nitrogen oxides in a kind of reduction carbon black smoke |
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| CN208312408U true CN208312408U (en) | 2019-01-01 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113983477A (en) * | 2021-11-05 | 2022-01-28 | 龙星化工股份有限公司 | Carbon black tail gas segmentation low-nitrogen combustion apparatus |
| CN114177713A (en) * | 2021-12-15 | 2022-03-15 | 江西黑猫炭黑股份有限公司 | Carbon black owner bag filter safety ring type emptying devices |
-
2018
- 2018-06-15 CN CN201820928510.9U patent/CN208312408U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113983477A (en) * | 2021-11-05 | 2022-01-28 | 龙星化工股份有限公司 | Carbon black tail gas segmentation low-nitrogen combustion apparatus |
| CN114177713A (en) * | 2021-12-15 | 2022-03-15 | 江西黑猫炭黑股份有限公司 | Carbon black owner bag filter safety ring type emptying devices |
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