CN205842694U - A kind of low NOx incinerator processing nitrogenous waste gas, waste liquid - Google Patents
A kind of low NOx incinerator processing nitrogenous waste gas, waste liquid Download PDFInfo
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- CN205842694U CN205842694U CN201620554817.8U CN201620554817U CN205842694U CN 205842694 U CN205842694 U CN 205842694U CN 201620554817 U CN201620554817 U CN 201620554817U CN 205842694 U CN205842694 U CN 205842694U
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Abstract
This utility model provides a kind of incinerator processing nitrogenous waste gas, waste liquid, it includes oxygen debt reduction section, the quench zone processing the first product stream is had in oxygen debt reduction section arranged downstream, the oxidation panel processing the second product stream is had quench zone arranged downstream, the secondary quench zone processing third product stream is had in oxidation panel arranged downstream, there is the SNCR denitration section processing the 4th product stream in secondary quench zone arranged downstream, have the waste heat boiler reclaiming the 5th product stream heat content in SNCR denitration section arranged downstream.This utility model can effectively control the generation of nitrogen oxides in the waste combustion process such as nitrogenous waste gas, waste liquid, particularly can significantly inhibit the generation of fuel NO, reduces nitrogen in fuel composition and generates the conversion ratio of nitrogen oxides.
Description
Technical field
This utility model belongs to chemical waste incineration technology field, relates to a kind of place for reducing NO_x formation
Manage the incinerator of nitrogenous waste gas, waste liquid.The incinerator that this utility model relates to is applicable to petrochemical industry, fine chemistry industry, coal
The nitrogenous waste gas of the multiple industrial circle such as chemical industry, coking, the process of waste liquid.
Background technology
Environmental conservation and energy-saving and emission-reduction are the eternal problems of industrial burning device.Particularly current along with up-to-date environmental protection mark
Standard, such as " GB 31570-2015 petroleum refining industry pollutant emission standard ", " GB 31571-2015 petro chemical industry is polluted
Thing discharge standard ", " GB 16171-2012 coking chemistry emission of industrial pollutants standard ", " dangerous waste incineration pollutant catabolic gene
Standard-exposure draft " etc. the promulgation of standard and enforcement, the requirement to reducing discharged nitrous oxides is stricter.Nitrogenous waste gas,
Waste liquid is produced by chemical industry, industry as fine in propylene, or pyridines agricultural raw and semiprocessed materials industry.For this type of nitrogenous waste gas,
The process of waste liquid, traditional burning mode cannot reduce the generation of fuel NO, and at present at the nitrogenous waste gas of China, useless
Imperfection is gone back in the research and development of the special processor of liquid, and the formation to reducing fuel NO also lacks effective method, because of
This needs to develop new burning theory and device.
From mechanism, industrial burning device, the generation of nitrogen oxides mainly divides two big classes, and a class is heating power type, by temperature
Degree impact is relatively big, and when temperature is more than 1350 DEG C, formation of nitrogen oxides is exponentially increased with the rising of temperature, and nitrogen oxides
Generation be proportional to two/first power of oxygen concentration in combustion atmospheres；Another kind of is fuel type, i.e. nitrogen element in fuel
Existing with the state of compound, in combustion, the nitrogen element in nitrogen-containing compound is that free radical is released, and and oxygen
Depressed symphysis becomes nitrogen oxides, the more difficult control of generation of this fuel NO.The method lowering nitrogen oxides at present is main
Starting with in terms of two, one is peak temperature and the partial pressure of oxygen reducing flame, such as follows than air classification, fuel staging and flue gas again
Rings etc., two is that the flue gas after burning is carried out denitration post processing, and the method for employing has SNCR and SCR.
In the technology of many control NO_x formation, air classification is the most frequently used and economic one.It is by control
Combustion zone excess air coefficient α processed (the i.e. ratio of the theoretical oxygen quality needed for the oxygen quality of effective supply and equivalent reaction
Rate), the total air being used for burning is fed along the main flow direction of whole combustion zone in batches, forms " multistage " combustion zone, main combustion
Burn the α ＜ 1 in district, cause oxygen debt reducing atmosphere, the generation of suppression nitrogen oxides, and be conducive to the nitrogen oxides generated
Decomposition-reduction, and afterbody feeds the remaining air amount burning required completely, by fuel after-flame, it is ensured that efficiency of combustion.
Partial fume after flue gas outer circulation uses pumpback burning reenters burner, comes dilution oxygen concentration and fall
Lower peak temperatures, thus reduce the probability that nitrogenous free group is combined with oxygen atom, and then reduce formation of nitrogen oxides.
SNCR denitration technology, i.e. in suitable temperature range, sprays into ammonia or carbamide in the flue gas of nitrogen-containing oxide, makes
Spray into the free radical NH of medium releasei(i=1,2,3) generation N is reacted with NO2And water, thus reduce the dense of nitrogen oxides in effluent
Degree.
Summary of the invention
The purpose of this utility model is to provide a kind of for reducing NO_x formation, and particularly fuel NO is raw
Become processes nitrogenous waste gas, the incinerator of waste liquid.
Realize the technical scheme of this utility model purpose: a kind of process nitrogenous waste gas, the low NOx of waste liquid burns dress
Putting, it includes oxygen debt reduction section, has the quench zone processing the first product stream in oxygen debt reduction section arranged downstream, at a priority
Cold section of arranged downstream has the oxidation panel processing the second product stream, has two priorities processing third product stream in oxidation panel arranged downstream
Cold section, there is the SNCR denitration section processing the 4th product stream in secondary quench zone arranged downstream, have in SNCR denitration section arranged downstream
Reclaim the waste heat boiler of the 5th product stream heat content；Described oxygen debt reduction section includes the burner for burning nitrogenous waste stream；
Combustion air entrance, nitrogenous waste gas inflow entrance, nitrogenous waste liquor stream entrance, a fuel inflow entrance it is disposed with on described burner；Institute
State and be disposed with steam entry on oxygen debt reduction section, have the first product stream outlet in oxygen debt reduction section arranged downstream；At a priority
Cold section of upstream is provided with the entrance for flue gas recycled, has the second product stream outlet a quench zone arranged downstream；In oxidation
Duan Shangyou is provided with secondary combustion-supporting wind entrance, and the starting point at oxidation panel arranges the second burner；Oxidation panel is additionally provided with three times
Combustion air entrance, the second fuel inflow entrance and not nitrogenous waste inflow entrance；Third product flow export is had in oxidation panel arranged downstream；
Being provided with waterjet inlet on secondary quench zone, secondary quench zone arranged downstream has the 4th product stream outlet；In SNCR denitration section
It is provided with denitrfying agent entrance, has the 5th product stream outlet in SNCR denitration section arranged downstream；Waste heat boiler is disposed with the 6th product
Stream outlet；It is connected to process the chimney of the 6th product stream in waste heat boiler downstream, chimney is disposed with flue gas recycled
Outlet, the outlet of flue gas recycled connects recirculation blower.
A kind of low NOx incinerator processing nitrogenous waste gas, waste liquid as above, this incinerator oxygen debt
Reduction section, quench zone, oxidation panel, secondary quench zone, SNCR denitration section, a waste heat boiler are the most independent bodies of heater, each stove
It is connected in series between body.
A kind of low NOx incinerator processing nitrogenous waste gas, waste liquid as above, this incinerator oxygen debt
Reduction section, quench zone, oxidation panel, secondary quench zone, SNCR denitration section, a waste heat boiler are one, i.e. a burning
Different sections it is divided in stove.
A kind of low NOx incinerator processing nitrogenous waste gas, waste liquid as above, the secondary of this incinerator
Quench zone, SNCR denitration section and waste heat boiler are formed integrally, for the boiler of band SNCR denitration device.
A kind of low NOx incinerator processing nitrogenous waste gas, waste liquid as above, it is in oxygen debt reduction section institute
The combustion air entrance stated is connected to regulate the controlling organization of a combustion air amount；Nitrogenous waste gas inflow entrance is connected to
The controlling organization of regulation exhausted air quantity；Nitrogenous waste liquor stream entrance is connected to regulate the controlling organization of waste liquid amount；Fuel inflow entrance is even
Connect the controlling organization for regulating fuel flow rate；Steam entry is connected to regulate the controlling organization of water vapour amount；Oxygen debt
Reduction section end is provided with analyser one and temperature control device one, and described analyser one can analyze the non-first in the first product stream
Alkane total hydrocarbon content or NO content, and for the regulation controlling organization of combustion air amount, the controlling organization of exhausted air quantity, waste liquid amount
Controlling organization, the controlling organization of fuel flow rate and water vapour amount controlling organization in one or more, temperature control device
One is used for one or both in the controlling organization of controlling organization and the water vapour amount regulating a combustion air amount.At a priority
The flue gas recycled entrance of cold section is connected to regulate the controlling organization of flue gas recycled amount；End at a quench zone connects
Temperature control device two, temperature control device two is for regulating the controlling organization of flue gas recycled amount.Secondary at oxidation panel helps
Combustion wind entrance is connected to regulate the controlling organization of secondary combustion-supporting wind flow, and three combustion air entrances are connected to regulate three times and help
The controlling organization of combustion wind air quantity, the second fuel inflow entrance is connected to regulate the controlling organization of the second fuel flow rate, the most nitrogenous useless
Stream inlet is connected to regulate the controlling organization of refuse flow；At the end linking parsing instrument two of oxidation panel, analyser two energy
Enough analyze the oxygen content in third product stream and preferentially regulate the controlling organization for regulating secondary combustion-supporting wind flow, secondary choosing
The controlling organization of regulation flue gas recycled amount, and the regulation controlling organization of three combustion air amount, the control of the second fuel flow rate
Mechanism processed and the controlling organization of refuse flow.Waterjet inlet at secondary quench zone is connected to regulate the control machine of injection flow rate
Structure；The end of secondary quench zone connects temperature control device three, and temperature control device three is for regulating the controlling organization of injection flow rate；
Secondary quench zone is disposed with heat-exchanger rig.Denitrfying agent entrance in SNCR denitration section is connected to regulate denitrfying agent flow
Controlling organization；The end linking parsing instrument three of SNCR denitration section, analyser three can analyze the NO content in the 5th product stream, and
It is connected to regulate recirculation cigarette in the flue gas recycled outlet of waste heat boiler for regulating the controlling organization of denitrfying agent flow
The controlling organization of throughput.
A kind of low NOx incinerator processing nitrogenous waste gas, waste liquid as above, it arranges the at oxidation panel
Two burners, play the effect stably ignited, or carry out burning disposal by the second burner the most nitrogenous waste gas of input, waste liquid.
Effect of the present utility model is: a kind of low nitrogen oxidation processing nitrogenous waste gas, waste liquid described in the utility model
Thing incinerator, uses the technology that burner hearth integrated air fractional combustion and flue gas recirculation, SNCR denitration combine, it is possible to effectively
Control the generation of nitrogen oxides in the waste combustion process such as nitrogenous waste gas, waste liquid, particularly can significantly inhibit fuel type nitrogen oxygen
The generation of compound, reduces nitrogen in fuel composition and generates the conversion ratio of nitrogen oxides.
Accompanying drawing explanation
Fig. 1 a kind of low NOx incinerator schematic diagram processing nitrogenous waste gas, waste liquid described in the utility model.
The low NOx of Fig. 2 a kind of band special boiler processing nitrogenous waste gas, waste liquid described in the utility model burns
Device schematic diagram.
The control of Fig. 3 a kind of low NOx incinerator processing nitrogenous waste gas, waste liquid described in the utility model is patrolled
Collect schematic diagram.
In figure: the most oxygen debt reduction section；20. quench zones；30. oxidation panels；40. 2 quench zones；50.SNCR denitration
Section；60. waste heat boilers；The boiler of 90. band SNCR denitration devices；100. burner；110.. a combustion air entrance；120. contain
Nitrogen waste gas inflow entrance；130. nitrogenous waste liquor stream entrances；140. fuel inflow entrances；150. steam entry；160. first product streams
Outlet；The entrance of 210. flue gas recycleds；220. second product stream outlets；310. secondary combustion-supporting wind entrances；300. second burnings
Device；320. 3 combustion air entrances；330. second fuel inflow entrances；340. not nitrogenous waste inflow entrances；350. third product streams
Outlet；410. waterjet inlet；420. the 4th product stream outlets；510.. denitrfying agent entrance；520. the 5th product stream outlets；610.
6th product stream outlet；70. chimneys；The outlet of 710. flue gas recycleds；80. recirculation blowers；111. combustion air amount
Controlling organization；The controlling organization of 121. exhausted air quantities；The controlling organization of 131. waste liquid amount；The controlling organization of 141. fuel flow rates；
The controlling organization of 151. water vapour amounts；170. analysers one；180. temperature control devices one；The control of 211. flue gas recycled amounts
Mechanism；230. temperature control devices two；The controlling organization of 311. secondary combustion-supporting wind flow；The control of 321. 3 combustion air amount
Mechanism；The controlling organization of 331. second fuel flow rates；The controlling organization of 341. refuse flows；360. analysers two；411. water spray
The controlling organization of amount；430. temperature control devices three；The controlling organization of 511. denitrfying agent flows；530. analysers three.
Detailed description of the invention
Below in conjunction with the accompanying drawings with specific embodiment to a kind of low nitrogen processing nitrogenous waste gas, waste liquid described in the utility model
Oxide incinerator is further described.
As shown in figures 1 and 3, a kind of low NOx burning processing nitrogenous waste gas, waste liquid described in the utility model
Device, this device includes oxygen debt reduction section 10, has the chilling processing the first product stream in oxygen debt reduction section 10 arranged downstream
Section 20, has the oxidation panel 30 processing the second product stream, has place in oxidation panel 30 arranged downstream quench zone 20 arranged downstream
The secondary quench zone 40 of reason third product stream, has the SNCR denitration section processing the 4th product stream in secondary quench zone 40 arranged downstream
50, the waste heat boiler 60 reclaiming the 5th product stream heat content is had in SNCR denitration section 50 arranged downstream.
Described oxygen debt reduction section 10 includes the burner 100 for burning nitrogenous waste stream；Cloth on described burner 100
It is equipped with combustion air entrance 110, nitrogenous waste gas inflow entrance 120, nitrogenous waste liquor stream entrance 130, a fuel inflow entrance 140；Described
It is disposed with steam entry 150 on oxygen debt reduction section 10, has the first product stream outlet 160 in oxygen debt reduction section 10 arranged downstream.
A described combustion air entrance 110 is connected to regulate the controlling organization 111 of a combustion air amount；Nitrogenous waste gas inflow entrance
120 are connected to regulate the controlling organization 121 of exhausted air quantity；Nitrogenous waste liquor stream entrance 130 is connected to regulate the control of waste liquid amount
Mechanism 131；Fuel inflow entrance 140 is connected to regulate the controlling organization 141 of fuel flow rate；Steam entry 150 is connected to
The controlling organization 151 of regulation water vapour amount；It is provided with analyser 1 and temperature control device one at oxygen debt reduction section 10 end
180, described analyser 1 can analyze the NMHC content in the first product stream or NO content, and for regulation one
The controlling organization 111 of secondary combustion air amount, the controlling organization 121 of exhausted air quantity, the controlling organization 131 of waste liquid amount, fuel flow rate
One or more in the controlling organization 151 of controlling organization 141 and water vapour amount, temperature control device 1 is for regulation one
One or both in the controlling organization 111 of secondary combustion air amount and the controlling organization 151 of water vapour amount.
It is provided with the entrance 210 for flue gas recycled, quench zone 20 arranged downstream quench zone 20 upstream
There is the second product stream outlet 220.Described flue gas recycled entrance 210 is connected to regulate the controlling organization of flue gas recycled amount
211；End at a quench zone 20 connects temperature control device 2 230, and temperature control device 2 230 is used for regulating recirculation
The controlling organization 211 of exhaust gas volumn.
Being provided with secondary combustion-supporting wind entrance 310 in oxidation panel 30 upstream, the starting point at oxidation panel 30 arranges the second burner
300；Oxidation panel 30 is additionally provided with three combustion air entrance the 320, second fuel inflow entrances 330 and not nitrogenous waste inflow entrance
340；Third product flow export 350 is had in oxidation panel 30 arranged downstream.Described secondary combustion-supporting wind entrance 310 is connected to regulation
The controlling organization 311 of secondary combustion-supporting wind flow, three times combustion air entrance 320 is connected to regulate the control of three combustion air amount
Mechanism 321, the second fuel inflow entrance 330 is connected to regulate the controlling organization 331 of the second fuel flow rate, and nitrogenous waste does not flows into
Mouth 340 is connected to regulate the controlling organization 341 of refuse flow；At the end linking parsing instrument 2 360 of oxidation panel 30, analyser
2 360 can analyze the oxygen content in third product stream and preferentially regulate the control machine for regulating secondary combustion-supporting wind flow
Structure 311, the controlling organization 211 of secondary joint flue gas recycled amount of recruiting, and the controlling organization 321 of three combustion air amount of regulation,
The controlling organization 331 of the second fuel flow rate and the controlling organization 341 of refuse flow.
Being provided with waterjet inlet 410 on secondary quench zone 40, secondary quench zone 40 arranged downstream has the 4th product stream outlet
420.Described waterjet inlet 410 is connected to regulate the controlling organization 411 of injection flow rate；The end of secondary quench zone 40 connects temperature
Degree controlling organization 3 430, temperature control device 3 430 is for regulating the controlling organization 411 of injection flow rate；On secondary quench zone 40
It is disposed with heat-exchanger rig.
SNCR denitration section 50 is provided with denitrfying agent entrance 510, has the 5th product stream in SNCR denitration section 50 arranged downstream
Outlet 520.Described denitrfying agent entrance 510 is connected to regulate the controlling organization 511 of denitrfying agent flow；SNCR denitration section 50
End linking parsing instrument 3 530, analyser 3 530 can be analyzed the NO content in the 5th product stream, and be used for regulating denitrfying agent
The controlling organization 511 of flow.
Waste heat boiler 60 is disposed with the 6th product stream outlet 610；It is connected in waste heat boiler 60 downstream process
The chimney 70 of six product streams, is disposed with the outlet 710 of flue gas recycled on chimney 70, and the outlet 710 of flue gas recycled connects
Recirculation blower 80.It is connected to regulate the controlling organization of flue gas recycled flow in described flue gas recycled outlet 710
211。
10, quench zone 20, oxidation panel 30, secondary quench zone 40, SNCR denitration section of oxygen debt reduction section in the present embodiment
50, waste heat boiler 60 can be one, is i.e. divided into different sections in an incinerator.
As shown in figures 1 and 3, the low NOx burning processing nitrogenous waste gas, waste liquid of device described in embodiment 1 is used
Method, it comprises the steps
(a) first burn down step: oxygen debt burning
Make nitrogenous waste gas, waste liquid flow and fuel stream anti-with a combustion air under certain condition at oxygen debt reduction section 10
Should, the oxygen in a described combustion air is sub-chemical equivalent amount relative to the combustible component in described waste stream and fuel stream, shape
Become oxygen debt environment, thus produce the first product stream；Based on the analysis to described first product stream, regulate in above-mentioned each material stream
One or more, the excess air coefficient making reaction zone total controls between 0.6-1.0 (such as: 0.65,0.85 or 0.95)；Burn
Burn temperature and control between 1000 DEG C-1600 DEG C (such as: 1100 DEG C, 1300 DEG C or 1500 DEG C)；First product stream is gone back oxygen debt
The time of staying of former period 10 controls between 0.5s-2.0s (such as: 0.8s, 1.2s or 1.6s), and be more difficult to burn is nitrogenous useless
Logistics, the time of staying should be the longest.
Under the conditions of oxygen debt, owing to not having the nitrogen element in the waste stream such as enough oxygen and described waste gas, waste liquid to be combined, useless
Nitrogen element in logistics tends to react with hydrogen, carbon etc., changes into NHiThe reproducibility intermediate product such as (i=1,2,3), HCN, this
The nitrogen oxides that a little reproducibility intermediate products and part have produced continues reaction, generates nitrogen, finally makes most of the nitrogen element turn
Chemical conversion nitrogen, generates a small amount of NO.
In the case of oxygen debt condition is certain, optionally spray into steam for regulating the incineration temperature of burner hearth, it is to avoid super
Cross the limiting temperature of refractory liner.
(b) second burn down step a: chilling
Use cold cycle flue gas that the first product stream carries out chilling at a quench zone 20, thus produce the second product
Stream, and guarantee the flue-gas temperature after chilling between 800 DEG C-1000 DEG C (such as: 800 DEG C, 900 DEG C or 1000 DEG C), with meet
Can again light under the conditions of sufficient oxygen；
(c) the 3rd burn down step: peroxide burns
React more than the secondary combustion-supporting wind of chemical equivalent amount with oxygen at oxidation panel 30 second product stream, make combustible component fire
To the greatest extent, it is ensured that efficiency of combustion, third product stream is thus produced；Regulation secondary combustion-supporting wind infeed amount, controls third product stream oxygen content
Between 6%-10% (such as: 6%, 7% or 9%), the highest 10% is not surpassed；Oxidation panel 30 incineration temperature control 850 DEG C-
Between 1250 DEG C (such as: 950 DEG C, 1000 DEG C or 1150 DEG C), the highest 1300 DEG C are not surpassed；
Optionally arrange the second burner at oxidation panel 30, play the effect stably ignited, or thrown by the second burner
Enter the most nitrogenous waste gas, waste liquid carries out burning disposal；
(d) the 4th burn down step: secondary chilling
Physical contact between media, water spray is used third product stream to be cooled down rapidly, thus produces at secondary quench zone 40
4th product stream；Or using medium mediate contact, third product stream is lowered the temperature, thus is produced the 4th product by heat-exchanger rig
Stream；4th product stream temperature between 900 DEG C-1000 DEG C (such as: 900 DEG C, 950 DEG C or 1000 DEG C)；
(e) the 5th burn down step: SNCR denitration
In SNCR denitration section 50, use denitrfying agent and the 4th product stream to react under conditions of directly contact, produce
5th product stream；Ammonia nitre ratio controls in (1.2～1.6): between 1 (such as: 1.2:1,1.4:1 or 1.6:1)；Out of stock efficiency up to
30%-50%.
(f) the 6th burn down step: waste heat recovery
Use waste heat boiler 60 to reclaim the 5th product stream heat content, produce the 6th product stream.
Nitrogenous waste gas described in the present embodiment, waste liquid flow can be waste gas entirely, it is also possible to be waste liquid entirely, or useless
Gas and the mixture of waste liquid.Described nitrogenous waste gas, waste liquid flow can be entered by burner 100 respectively, oxygen debt reduction section
10 cone sections enter or enter in the middle part of oxygen debt reduction section 10.
Embodiment 2
It is with the difference of embodiment 1, oxygen debt reduction section 10, quench zone 20, oxidation panel 30, a secondary quench zone
40, SNCR denitration section 50, waste heat boiler 60 are the most independent bodies of heater, are connected in series between each body of heater.
Embodiment 3
It is with the difference of embodiment 1, as in figure 2 it is shown, the secondary quench zone 40 of this incinerator, SNCR denitration section
50 and waste heat boiler 60 be formed integrally, for the boiler 90 of band SNCR denitration device.
This part describes and is only used to describe in detail the technical scheme that this utility model provides, concrete description order and
Term should not form any restriction to this utility model protection domain.This utility model is not limited to this detailed description of the invention,
Those of ordinary skill in the art, without creative work, done all conversion, all falls within protection of the present utility model
Among scope.
Claims (6)
1. one kind processes nitrogenous waste gas, the low NOx incinerator of waste liquid, it is characterised in that: this device includes oxygen debt reduction
Section (10), has the quench zone (20) processing the first product stream, at a quench zone in oxygen debt reduction section (10) arranged downstream
(20) arranged downstream has the oxidation panel (30) processing the second product stream, has process third product stream in oxidation panel (30) arranged downstream
Secondary quench zone (40), secondary quench zone (40) arranged downstream have process the 4th product stream SNCR denitration section (50),
SNCR denitration section (50) arranged downstream has the waste heat boiler (60) reclaiming the 5th product stream heat content；
Described oxygen debt reduction section (10) includes the burner (100) for burning nitrogenous waste stream；On described burner (100)
It is disposed with combustion air entrance (110), nitrogenous waste gas inflow entrance (120), nitrogenous waste liquor stream entrance (130), a fuel inflow entrance
(140)；It is disposed with steam entry (150) on described oxygen debt reduction section (10), has in oxygen debt reduction section (10) arranged downstream
One product stream outlet (160)；
It is provided with the entrance (210) for flue gas recycled, at quench zone (20) downstream cloth quench zone (20) upstream
It is equipped with the second product stream outlet (220)；
Being provided with secondary combustion-supporting wind entrance (310) in oxidation panel (30) upstream, the starting point at oxidation panel (30) arranges the second burning
Device (300)；Oxidation panel (30) is additionally provided with three combustion air entrances (320), the second fuel inflow entrance (330) and the most nitrogenous useless
Stream inlet (340)；Third product flow export (350) is had in oxidation panel (30) arranged downstream；
Being provided with waterjet inlet (410) on secondary quench zone (40), secondary quench zone (40) arranged downstream has the 4th product to flow out
Mouth (420)；
SNCR denitration section (50) is provided with denitrfying agent entrance (510), has the 5th product in SNCR denitration section (50) arranged downstream
Flow export (520)；
Waste heat boiler (60) is disposed with the 6th product stream outlet (610)；It is connected in waste heat boiler (60) downstream process
The chimney (70) of the 6th product stream, is disposed with the outlet (710) of flue gas recycled, the outlet of flue gas recycled on chimney (70)
(710) recirculation blower (80) is connected.
A kind of low NOx incinerator processing nitrogenous waste gas, waste liquid the most according to claim 1, its feature exists
In: the oxygen debt reduction section (10) of this incinerator, quench zone (20), oxidation panel (30), secondary quench zone (40), a SNCR take off
Nitre section (50), waste heat boiler (60) are the most independent bodies of heater, are connected in series between each body of heater.
A kind of low NOx incinerator processing nitrogenous waste gas, waste liquid the most according to claim 1, its feature exists
In: the oxygen debt reduction section (10) of this incinerator, quench zone (20), oxidation panel (30), secondary quench zone (40), a SNCR take off
Nitre section (50), waste heat boiler (60) are one, are i.e. divided into different sections in an incinerator.
A kind of low NOx incinerator processing nitrogenous waste gas, waste liquid the most according to claim 1, its feature exists
In: the secondary quench zone (40) of this incinerator, SNCR denitration section (50) and waste heat boiler (60) are formed integrally, and take off for band SNCR
The boiler (90) of nitre device.
A kind of low NOx incinerator processing nitrogenous waste gas, waste liquid the most according to claim 1, its feature exists
In:
In oxygen debt reduction section (10), a described combustion air entrance (110) is connected to regulate the control of a combustion air amount
Mechanism processed (111)；Nitrogenous waste gas inflow entrance (120) is connected to regulate the controlling organization (121) of exhausted air quantity；Nitrogenous waste liquid flows into
Mouth (130) is connected to regulate the controlling organization (131) of waste liquid amount；Fuel inflow entrance (140) is connected to regulate fuel flow rate
Controlling organization (141)；Steam entry (150) is connected to regulate the controlling organization (151) of water vapour amount；In oxygen debt reduction
Section (10) end is provided with analyser one (170) and temperature control device one (180), and described analyser one (170) can analyze the
NMHC content in one product stream or NO content, and for regulating the controlling organization (111) of a combustion air amount, giving up
The controlling organization (121) of tolerance, the controlling organization (131) of waste liquid amount, the controlling organization (141) of fuel flow rate and water vapour amount
One or more in controlling organization (151), temperature control device one (180) is for the control machine of combustion air amount of regulation
One or both in the controlling organization (151) of structure (111) and water vapour amount；
A quench zone (20), flue gas recycled entrance (210) is connected to regulate the controlling organization of flue gas recycled amount
(211)；End a quench zone (20) connects temperature control device two (230), and temperature control device two (230) is used for adjusting
The controlling organization (211) of joint flue gas recycled amount；
In oxidation panel (30), secondary combustion-supporting wind entrance (310) is connected to regulate the controlling organization of secondary combustion-supporting wind flow
(311), three combustion air entrances (320) are connected to regulate the controlling organization (321) of three combustion air amount, the second fuel stream
Entrance (330) is connected to regulate the controlling organization (331) of the second fuel flow rate, and nitrogenous waste inflow entrance (340) does not connects use
Controlling organization (341) in regulation refuse flow；At the end linking parsing instrument two (360) of oxidation panel (30), analyser two
(360) oxygen content in third product stream can be analyzed and preferentially regulate the control machine for regulating secondary combustion-supporting wind flow
Structure (311), the controlling organization (211) of secondary joint flue gas recycled amount of recruiting, and the controlling organization of three combustion air amount of regulation
(321), the controlling organization (331) of the second fuel flow rate and the controlling organization (341) of refuse flow；
In secondary quench zone (40), waterjet inlet (410) is connected to regulate the controlling organization (411) of injection flow rate；Secondary chilling
The end of section (40) connects temperature control device three (430), and temperature control device three (430) is for regulating the control machine of injection flow rate
Structure (411)；
In SNCR denitration section (50), denitrfying agent entrance (510) is connected to regulate the controlling organization (511) of denitrfying agent flow；
The end linking parsing instrument three (530) of SNCR denitration section (50), the NO that analyser three (530) can be analyzed in the 5th product stream contains
Amount, and for regulating the controlling organization (511) of denitrfying agent flow；
In waste heat boiler (60), flue gas recycled outlet (710) is connected to regulate the controlling organization of flue gas recycled flow
(211)。
A kind of low NOx incinerator processing nitrogenous waste gas, waste liquid the most according to claim 1, its feature exists
In: arrange the second burner at oxidation panel (30), play the effect stably ignited, or put into by the second burner the most nitrogenous useless
Gas, waste liquid carry out burning disposal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620554817.8U CN205842694U (en) | 2016-06-08 | 2016-06-08 | A kind of low NOx incinerator processing nitrogenous waste gas, waste liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105937766A (en) * | 2016-06-08 | 2016-09-14 | 北京航天动力研究所 | Low nitrogen oxide incinerating device used for treatment of nitrogen containing waste gas and nitrogen containing waste liquid and low nitrogen oxide incinerating method used for treatment of nitrogen containing waste gas and nitrogen containing waste liquid |
| CN113623665A (en) * | 2020-05-06 | 2021-11-09 | 洛阳瑞昌环境工程有限公司 | System and method for incinerating waste gas and waste liquid of ethylene glycol device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105937766A (en) * | 2016-06-08 | 2016-09-14 | 北京航天动力研究所 | Low nitrogen oxide incinerating device used for treatment of nitrogen containing waste gas and nitrogen containing waste liquid and low nitrogen oxide incinerating method used for treatment of nitrogen containing waste gas and nitrogen containing waste liquid |
| CN113623665A (en) * | 2020-05-06 | 2021-11-09 | 洛阳瑞昌环境工程有限公司 | System and method for incinerating waste gas and waste liquid of ethylene glycol device |
| CN113623665B (en) * | 2020-05-06 | 2023-08-01 | 洛阳瑞昌环境工程有限公司 | System and method for incinerating waste gas and waste liquid of ethylene glycol device |
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Effective date of registration: 20170216 Address after: 100076 Beijing, Fengtai District, South Road, No. 1, Patentee after: Beijing Aerospace Petrochemical Technology and Equipment Engineering Corporation Address before: 100076 Beijing, Fengtai District, South Road, No. 1, Patentee before: Beijing Inst. of Aerospace Dynamics Patentee before: Beijing Aerospace Petrochemical Technology and Equipment Engineering Corporation |