CN207891291U - A kind of black reactor discharging low nitrogen flue gas - Google Patents
A kind of black reactor discharging low nitrogen flue gas Download PDFInfo
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- CN207891291U CN207891291U CN201820021483.7U CN201820021483U CN207891291U CN 207891291 U CN207891291 U CN 207891291U CN 201820021483 U CN201820021483 U CN 201820021483U CN 207891291 U CN207891291 U CN 207891291U
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Abstract
The utility model provides a kind of black reactor discharging low nitrogen flue gas, which includes the low nitrogen burning section of front end and the mixing section with raw material oil gun connected successively, conversion zone, the quench zone with chilling hydraulic giant, the remaining portion with cooling water gun；Wherein, the low nitrogen burning section of front end is made of premix section and burning zone；Conversion zone is equipped with flue gas outlet, and premix section is equipped with flue gas intake, and flue gas outlet is connect by pipeline with flue gas intake.Carbon black is produced using the black reactor, discharge flue gas contains NOXConcentration ratio conventional carbon black manufacturing method is discharged flue gas and contains NOXConcentration about low 80%, reaches 110~198mg/Nm3It is horizontal.
Description
Technical field
The utility model belongs to carbon black industry production technical field, and in particular to a kind of carbon black reaction for discharging low nitrogen flue gas
Stove.
Background technology
The production method of carbon black is the substance conversion based on burning, is that fuel completely burned provides heat in reacting furnace
Kinetic force supplies the method for manufacturing carbon black by the raw material oil-breaking that mixing section sprays into.The temperature of fuel completely burned is 1500~2200
℃.Primary combustion rate (coefficient of excess air) ɑ of fuel combustion>1, ɑ about in 1.2~2.6 ranges.Fuel fires under air conditions
It burns, the oxygen in air generates NO with nitrificationX, production quantity drastically increases with the raising of peak flame temperature, is present in flue gas
In NOXIt is discharged with after main bag hose flutters the lower carbon black of collection.Due to the requirement of environmental protection, carbon black manufacturer is using to charcoal at present
Black exhaust is discharged after carrying out denitration process.Although this method technical feasibility from end treatment, investment of equipment or transformation
Cost is big, operating cost is high, reduces enterprise profit, affects device utilization rate.
The technical staff of the utility model has studied manufacturing process and NO in flue gas in carbon black process in earnestXIt generates
Relationship, using improve black reactor structure, adjust combustion parameter, the generation of NOx is reduced from the method for watershed management.It is real
Have the characteristics that investment of equipment in the application of border or improvement cost is small, operating cost is low.
Invention content
In order to overcome current carbon black manufacturer to use the discharge denitrating flue gas treatment process to production of carbon black, equipment investment
Greatly, operating cost is high, reduces enterprise profit, influences the problems such as device utilization rate；A kind of low nitrogen cigarette of discharge of the utility model offer
The black reactor of gas.
The utility model solve technical problem scheme be：
The furnace body for the black reactor that this programme uses has refractory insulating layer, which includes having for front end
Low nitrogen burning section and the mixing section with raw material oil gun connected successively, conversion zone, the quench zone with chilling hydraulic giant, with cold
But the remaining portion of hydraulic giant.The low nitrogen burning section of front end is made of premix section and burning zone；Section is premixed to cover equipped with porous premix, it is porous
Premix, which is put on, to be connected with air-flue gas flow diverter and is equipped with fuel level-one import, and air-flue gas flow diverter is equipped with plant air
Level-one import and flue gas intake；The inlet of burning zone is porous with air-casing equipped with fuel, and the porous distribution of fuel is put on equipped with combustion
Expect secondary inlet；Burning zone rear portion is porous with air-casing equipped with plant air two level, and the porous distribution of plant air two level, which is put on, to be equipped with
Plant air secondary inlet.The rear portion of burning zone be equipped with flue gas it is porous go out air-casing, the porous outlet of flue gas put on equipped with flue gas draw
Mouthful, flue gas outlet is connect by pipeline with the flue gas intake on air-flue gas flow diverter；Remaining portion with cooling water gun
End is equipped with the waste heat utilization equipments such as air preheater, connects main bag hose.
Plant air enters air-flue gas flow diverter, from plant air secondary inlet from plant air level-one import respectively
Match air-casing into plant air two level is porous.The plant air entered from plant air level-one import, referred to as level-one plant air；
The plant air entered from plant air secondary inlet, referred to as secondary process air.
Fuel enters porous premix set from fuel level-one import respectively, enters the porous distribution of fuel from fuel secondary inlet
Set, the fuel entered from fuel level-one import, referred to as primary fuel；The fuel entered from fuel secondary inlet, referred to as two level fire
Material.
Level-one plant air and the flue gas introduced by flue gas outlet enter porous premix through air-flue gas flow diverter
Set.Flame of primary fuel, level-one plant air and the flue gas introduced by flue gas outlet, mixed firinor fuel burning generates high temperature cigarette
Gas, with the generation of NOx；Secondary fuel is entered by the porous fuel secondary inlet with air-casing of fuel, and secondary fuel surrounds one
Secondary flame, the NOx that flame zone of reduction generates form secondary flame at nitrogen N 2；Secondary process air is through burning zone rear portion
Plant air two level porous distribution set enter, secondary fuel forms flame three times under secondary process air-breathing, final to fire
It burns out, the flue gas of generation is by entering conversion zone after mixing section.A part for flue gas by flue gas it is porous go out air-casing flue gas draw
Outlet is drawn, then introduces premix section by the flue gas intake on air-flue gas flow diverter, forms flue gas recirculation；Flue gas it is another
A part is discharged by main bag hose.
The advantageous effects of the utility model are：By improving black reactor structure, improve manufacturing technologies of carbon black
The burning condition of fuel gas and plant air improves combustion process.Primary fuel is entered by the fuel level-one import of premix section, with
Air flue gas flow diverter come level-one plant air, with the flue gas by conversion zone it is porous go out air-casing flue gas outlet draw cigarette
Gas is covered in porous premix and is mixed, and in the inlet completely burned of burning zone, forms a flame zone；Secondary fuel is by fuel two
Grade import enters, and is sprayed into air-casing by fuel is porous, secondary fuel surrounds a flame, the CH in secondary fuel+ 3、H2、CO、
CnHm etc. restores the NO that a flame zone generatesxAt nitrogen N2, form secondary flame zone；Secondary process air is by plant air two
Grade import enters plant air graduation two air-casing, sprays into burning zone rear portion by plant air secondary inlet, is formed with fuel combustion
Flame zone fires eventually three times, slows down after-flame process, controls NOxIt generates.It is drawn by the conversion zone flue gas that air-flue gas flow diverter introduces
The flue gas of mouth is mixed into the porous premix set mixing that level-one plant air enters premix section together, reduction O2Concentration make NOxProduction quantity
Decline, furnace temperature is uniform, reduces burning zone furnace body localized hyperthermia and oxidization burning loss.This practicality is applied in oil gas oven process production of carbon black
Novel black reactor produces carbon black, the low nitrogen manufacture of carbon black smoke can be realized, as embodiment produces N100, N200, N300
Serial carbon black, its advantage is that obviously.Carbon black is produced using the black reactor of the utility model, collection is flutterred by main bag hose
The flue gas being discharged after lower carbon black contains NOXConcentration ratio conventional carbon black manufacturing method flutters the flue gas being discharged after the lower carbon black of collection by main bag hose
Containing NOXConcentration about low 80%, reaches 110~198mg/Nm3It is horizontal.
Description of the drawings
Fig. 1 is the Method And Principle schematic diagram of the utility model.
Fig. 2 is the black reactor structural schematic diagram of the utility model.
Serial number in the accompanying drawings is described as：1. low nitrogen burning section, 2. mixing sections, 3. conversion zones, 4. quench zones, 5. are detained
Section；1-1. premixes section, 1-1-1. fuel level-one imports, the porous premix sets of 1-1-2., 1-1-3. plant air level-one imports, 1-1-
4. air-flue gas flow diverter；1-2. burning zone；1-2-1. fuel secondary inlets, 1-2-2. fuel is porous to match air-casing, 1-2-3. works
Skill air secondary inlet, 1-2-4. plant air two levels are porous to match air-casing；2-1. raw material oil guns；3-1. flue gas it is porous go out air-casing；
3-1-1. flue gas outlets；4-1. chilling hydraulic giants；5-1. chilling hydraulic giants.
Specific implementation mode
It includes front end with the combustion of low nitrogen that the furnace body of the black reactor of use, which has refractory insulating layer, the black reactor,
Burn section 1 and the mixing section 2 with raw material oil gun 2-1 connected successively, conversion zone 3, the quench zone 4 with chilling hydraulic giant 4-1, tool
There is the remaining portion 5 of chilling hydraulic giant 5-1.The low nitrogen burning section 1 of front end is made of premix section 1-1 and burning zone 1-2；Premix section 1-1
1-1-2 is covered equipped with porous premix, air-flue gas flow diverter 1-1-4 is connected on porous premix set 1-1-2 and is equipped with fuel level-one
Import 1-1-1, air-flue gas flow diverter 1-1-4 are equipped with plant air level-one import 1-1-3 and flue gas intake 1-1-5；Combustion
The inlet for burning section 1-2 is porous with air-casing 1-2-2 equipped with fuel, and fuel is porous to be equipped with fuel secondary inlet with air-casing 1-2-2
1-2-1；The rear portions burning zone 1-2 are porous with air-casing 1-2-4 equipped with plant air two level, and plant air two level is porous to match air-casing 1-2-
4 are equipped with plant air secondary inlet 1-2-3.Conversion zone 3 be equipped with flue gas it is porous go out air-casing 3-1, flue gas it is porous go out air-casing 3-1 on
It is introduced by the flue gas on pipeline and air-flue gas flow diverter 1-1-4 equipped with flue gas outlet 3-1-1, flue gas outlet 3-1-1
Mouth 1-1-5 connections；5 end of remaining portion with cooling water gun is equipped with the waste heat utilization equipments such as air preheater, connects main bag filter
Device.
The specific embodiment that carbon black is produced using above-mentioned black reactor is described below：By air pressurized wind turbine by technique
For air pressurized to 80~100KPa after air preheater preheats, the black reactor that point two-stage is respectively fed to the utility model is low
The plant air level-one import 1-1-3 and plant air secondary inlet mouth 1-2-3 of the premix section 1-1 of nitrogen burning zone 1 enters furnace body；
Fuel gas is respectively fed to the fuel one of the premix section 1-1 of low nitrogen burning section 1 with 80~100KPa room temperature or preheating state also point two-stage
The fuel secondary inlet 1-2-1 of grade import 1-1-1 and burning zone 1-2 enters furnace body.The distribution ratio of primary fuel and secondary fuel
Example, primary fuel are 50%~90%；The flow of main air and primary fuel is in the primary combustion rate conditions of a1=1.05~1.1
Under, enter burning zone 1-2 completely burneds after porous premix set 1-1-2 premixs, forms a flame zone；Secondary fuel is through fuel
It is porous to match air-casing 1-2-2, it is sprayed onto a flame zone surrounding, surrounds a flame zone, form secondary flame zone, in secondary fuel
CH+ 3、H2, the NO that generates of flame zone of reduction such as CO, CnHmxAt nitrogen N2；Secondary process air is by plant air secondary inlet
1-2-3 enters the rear portions burning zone 1-2, burns to form the whole burning of flame zone three times to the greatest extent with fuel 2-2, slows down after-flame process, control
NOxIt generates, the flue gas of generation is by entering conversion zone 3 after mixing section 2；In air-flue gas flow diverter 1-1-4, by technique sky
The part that the negative pressure that gas high flow rate is formed introduces the flue gas of 3 flue gas outlet 3-1-1 of conversion zone is mixed into plant air 1-1, into
The porous premix set 1-1-2 mixing for entering to premix section 1-1, into burning zone 1-2 completely burneds；Another part of flue gas is filtered by main bag
Device is discharged.
Provide the specific data of each embodiment in table form separately below.
Embodiment 1, the manufacturing method embodiment of hard (carbon) black N115.
Note：Serial number is explained in table, 0- conventional carbon black manufacturing methods；1- natural gas level-one flows F1=70%F；2- natural gases
Level-one flow F1=80%F；3- natural gas level-one flows F1=90%F.(F is natural gas total flow)
Embodiment 2, the manufacturing method embodiment of hard (carbon) black N234.
Note：Serial number is explained in table, 0- conventional carbon black manufacturing methods；1- natural gas level-one flows F1=70%F；2- natural gases
Level-one flow F1=80%F；3- natural gas level-one flows F1=90%F.(F is natural gas total flow)
Embodiment 3, the manufacturing method embodiment of hard (carbon) black N339.
Note：Serial number is explained in table, 0- conventional carbon black manufacturing methods；1- natural gas level-one flows F1=70%F；2- natural gases
Level-one flow F1=80%F；3- natural gas level-one flows F1=90%F.(F is natural gas total flow).
Claims (3)
1. a kind of black reactor, furnace body has refractory insulating layer, it is characterised in that：The black reactor includes the low nitrogen of front end
Burning zone and the mixing section with raw material oil gun connected successively, conversion zone, the quench zone with chilling hydraulic giant, with cooling water
The remaining portion of rifle；Wherein, the low nitrogen burning section of front end is made of premix section and burning zone；Conversion zone is equipped with flue gas outlet, in advance
Mixed section is equipped with flue gas intake, and flue gas outlet is connect by pipeline with flue gas intake.
2. black reactor according to claim 1, it is characterised in that：It premixes section to cover equipped with porous premix, porous premix
It puts on and is connected with air-flue gas flow diverter and is equipped with fuel level-one import, air-flue gas flow diverter is equipped with plant air level-one
Import and flue gas intake；The inlet of burning zone is porous with air-casing equipped with fuel, and the porous distribution of fuel is put on equipped with fuel two
Grade import；Burning zone rear portion is porous with air-casing equipped with plant air two level, and the porous distribution of plant air two level is put on equipped with technique
Air secondary inlet；Conversion zone be equipped with flue gas it is porous go out air-casing, the porous outlet of flue gas puts on equipped with flue gas outlet, and flue gas is drawn
Mouth is connect by pipeline with the flue gas intake on air-flue gas flow diverter.
3. black reactor according to claim 1 or 2, it is characterised in that：Remaining portion end with cooling water gun is set
It has surplus heat and utilizes equipment, connect main bag hose.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820021483.7U CN207891291U (en) | 2018-01-05 | 2018-01-05 | A kind of black reactor discharging low nitrogen flue gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820021483.7U CN207891291U (en) | 2018-01-05 | 2018-01-05 | A kind of black reactor discharging low nitrogen flue gas |
Publications (1)
| Publication Number | Publication Date |
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| CN207891291U true CN207891291U (en) | 2018-09-21 |
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ID=63551435
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| CN201820021483.7U Active CN207891291U (en) | 2018-01-05 | 2018-01-05 | A kind of black reactor discharging low nitrogen flue gas |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112876882A (en) * | 2021-01-13 | 2021-06-01 | 无锡东恒新能源科技有限公司 | Improved process for producing carbon black |
-
2018
- 2018-01-05 CN CN201820021483.7U patent/CN207891291U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112876882A (en) * | 2021-01-13 | 2021-06-01 | 无锡东恒新能源科技有限公司 | Improved process for producing carbon black |
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