CN208968298U - A kind of industrial furnace low-temperature flue gas waste heat utilizes and desulfurization nitre eliminating white smoke integral system - Google Patents
A kind of industrial furnace low-temperature flue gas waste heat utilizes and desulfurization nitre eliminating white smoke integral system Download PDFInfo
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- CN208968298U CN208968298U CN201821696586.XU CN201821696586U CN208968298U CN 208968298 U CN208968298 U CN 208968298U CN 201821696586 U CN201821696586 U CN 201821696586U CN 208968298 U CN208968298 U CN 208968298U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
The utility model discloses a kind of industrial furnace low-temperature flue gas waste heat and utilizes and desulfurization nitre eliminating white smoke integral system, including booster fan, multiply refrigerant heat-exchange system, flow control valve, flow meter, flue gas condensing and Benitration reactor, lye pond, removes mist resistant filter and chimney.The utility model has the advantages that convenient for industrial furnace operation；It can On-line construction；Fuel consumption is reduced, industrial furnace thermal efficiency is improved；Guarantee system equipment and component service life；Flue gas low-temperature UTILIZATION OF VESIDUAL HEAT IN and desulphurization denitration dedusting eliminating white smoke integration；Denitration efficiency >=80%；Desulfuration efficiency >=90%；It saves water；Occupied area is reduced, is reduced investment outlay；Reduce water existing for discharge flue fog drip shape；Reduce chimney locally around area's pollutant concentration；Reach energy conservation and mitigate environmental pollution, eliminates the purpose of visual pollution；The water-saving section steam quadruple effect unification of energy-saving and emission-reduction；Operating cost is low；Have a wide range of application.
Description
Technical field
The utility model relates to a kind of utilization of industrial furnace low-temperature flue gas waste heat and desulfurization nitre eliminating white smoke integral systems.
Background technique
The conventional desulfurization now applied and denitration are two independent systems.And the reaction temperature respectively required is different.
The temperature range of denitration reaction is at 250 ~ 590 DEG C.Desulfurization reaction temperature is at 50 ~ 60 DEG C.
Conventional desulphurization system, into desulfurizing tower flue-gas temperature generally at 120 DEG C or so, and desulphurization reaction needs temperature
At 50 ~ 60 DEG C, it is therefore desirable to flue gas is cooled down with a large amount of valuable water, it is aqueous when flue gas being caused finally to be expelled to chimney
It measures very big.If can generate " Wet chimney " phenomenon without the reheating of flue gas, cause corrosion failure to chimney, cause safety
Hidden danger influences to keep the safety in production；And the product that the desulfurizing agent carried in flue gas reacts generation with SOx in flue gas can be attached in chimney breast
Nearly condensation falls to form " mud rain ", equally causes the pollution to environment.But also will form chimney " white cigarette " phenomenon, cause vision
Pollution.
Conventional denitrating system generally uses SCR denitration system.Reaction interval temperature is at 250 ~ 590 DEG C.There are system complex, ammonia
Escape, catalyst poisoning failure, reaction product block follow-up equipment problem.
The system for desulfuration and denitration applied now, process flow is complicated, takes up a large area, and primary investment is big, operates running cost
With height, easily formation secondary pollution, and be purely for environment protection emission is up to standard and adds system.
Widely used work in the industries such as petroleum refining, petrochemical industry, chemistry, chemical fibre, iron and steel metallurgy, glass ceramics building materials
Industry furnace, for general exhaust gas temperature at 120 ~ 200 DEG C, the thermal efficiency is about 85~92%.Still there are a large amount of physical sensible heats not have in flue gas
It is utilized effectively.
At the same time, contain a large amount of vapor (content 10 ~ 20%) in the flue gas generated due to fuel combustion, vaporization is latent
Hot (account for about lower calorific value of fuel 10%) is discharged with flue gas, causes very big energy dissipation.
And under low efficiency, smoke discharge amount is big, and pollutant discharge amount is big, and Pollutant emission concentration is high, environmental pollution
Seriously.
Restricting reduces exhaust gas temperature, improves the thermal efficiency, a key factor be exactly equipment and pipeline flue gas dew point it is rotten
Erosion problem.
Utility model content
The purpose of this utility model is to provide one kind to run convenient for industrial furnace；It can On-line construction；Fuel consumption is reduced, is mentioned
High industrial furnace thermal efficiency；Guarantee system equipment and component service life；Flue gas low-temperature UTILIZATION OF VESIDUAL HEAT IN and desulphurization denitration dedusting disappear white
Cigarette integration；Denitration efficiency >=80%；Desulfuration efficiency >=90%；It saves water；Occupied area is reduced, is reduced investment outlay；Reduce discharge
Water existing for flue fog drip shape；Reduce chimney locally around area's pollutant concentration；Reach energy conservation and mitigate environmental pollution, disappears
Except the purpose of visual pollution；The water-saving section steam quadruple effect unification of energy-saving and emission-reduction；Operating cost is low；The industrial furnace low temperature having a wide range of application
Fume afterheat utilizes and desulfurization nitre eliminating white smoke integral system.
The technical solution of the utility model is, a kind of industrial furnace low-temperature flue gas waste heat utilizes and the eliminating white smoke integration of desulfurization nitre
System, including booster fan, multiply refrigerant heat-exchange system, flow control valve, flow meter, flue gas condensing and denitration reaction
Device, removes mist resistant filter and chimney at lye pond, and the booster fan is corresponding with the exhaust gases passes entrance of multiply refrigerant heat-exchange system
Setting, the flue gas condensing and Benitration reactor include the first flue gas condensing and Benitration reactor, multiply refrigerant heat exchange system
The exhaust gases passes outlet of system and the exhaust gases passes entrance of the first flue gas condensing and Benitration reactor are correspondingly arranged, and the flow is adjusted
Valve and flow meter are correspondingly arranged, exhaust gases passes outlet and first of the flow meter also with multiply refrigerant heat-exchange system
The exhaust gases passes outlet of flue gas condensing and Benitration reactor is correspondingly arranged, the flue gas of first flue gas condensing and Benitration reactor
Channel outlet is correspondingly arranged with lye pond and except mist resistant filter respectively, described except mist resistant filter is correspondingly arranged with chimney.
It further include oxidizer systems, oxidant activator appliance, denitration catalyst in one preferred embodiment of the utility model
Agent, the second flue gas condensing and Benitration reactor, third flue gas condensing and Benitration reactor and flue gas heating device, the oxidant system
System be correspondingly arranged with flow control valve, the flow meter pass through oxidant activator appliance respectively with multiply refrigerant heat-exchange system
Exhaust gases passes outlet and the exhaust gases passes outlet of the first flue gas condensing and Benitration reactor are correspondingly arranged, and the denitrating catalyst is set
It is placed in the exhaust gases passes inlet of first flue gas condensing and Benitration reactor, first flue gas condensing and denitration reaction
Device, the second flue gas condensing and Benitration reactor and third flue gas condensing and Benitration reactor are corresponding in turn to setting, the third cigarette
Air cooling is coagulated and the exhaust gases passes outlet of Benitration reactor is correspondingly arranged with lye pond and except mist resistant filter respectively, the flue gas heating
The cold fluid pass of device respectively be correspondingly arranged except mist resistant filter and chimney.
It further include condensation liquid treating system and desulphurization denitration scrubbing tower, institute in one preferred embodiment of the utility model
State the exhaust gases passes outlet that condensation liquid treating system is set to third flue gas condensing and Benitration reactor, the third flue gas condensing
And lower end of the exhaust gases passes outlet of Benitration reactor also with the desulphurization denitration scrubbing tower is correspondingly arranged, the desulphurization denitration
The lower end of scrubbing tower is also correspondingly connected with lye pond, the top in the desulphurization denitration scrubbing tower be provided with except mist resistant filter and with
The cold fluid pass entrance of flue gas heating device is correspondingly arranged, demisting mistake of the lye pond by pump in desulphurization denitration scrubbing tower
It is correspondingly connected with below filter and is provided with alkali nozzle.
In one preferred embodiment of the utility model, the booster fan also with the exhaust gases passes entrance of flue gas heating device
It is correspondingly arranged, the exhaust gases passes outlet of the flue gas heating device is corresponding with the exhaust gases passes outlet of multiply refrigerant heat-exchange system to be set
It sets.
In one preferred embodiment of the utility model, the lye pond is cold with third flue gas respectively by alkali nozzle through pump
Solidifying and the exhaust gases passes entrance and third flue gas condensing of Benitration reactor and the exhaust gases passes outlet of Benitration reactor are correspondingly arranged.
In one preferred embodiment of the utility model, further include ozonation system, flue gas distributor, the first flue gas condensing and
Denitration reaction washer, the second flue gas condensing and denitration reaction washer and washing section, the ozonation system and flow are adjusted
Valve is correspondingly arranged, and the flue gas distributor is located at the exhaust gases passes entrance of first flue gas condensing and Benitration reactor, described
First flue gas condensing and denitration reaction washer, the second flue gas condensing and denitration reaction washer and washing section are corresponding in turn to and set
Set and be located at the exhaust gases passes outlet of first flue gas condensing and Benitration reactor, the washing section respectively with lye pond and remove
Mist resistant filter is correspondingly arranged, and the lye pond is also set to the second flue gas condensing and denitration reaction washer by alkali nozzle through pumping
Exhaust gases passes entrance and washing section exhaust gases passes outlet at, the lye pond is also correspondingly arranged with the bottom of chimney.
Described in the utility model is a kind of utilization of industrial furnace low-temperature flue gas waste heat and desulfurization nitre eliminating white smoke integral system, sheet
Utility model has the advantages that
1, system, which is arranged, shows tail flue gas exit in industrial furnace, can cut out from system at any time, not influence industrial furnace sheet
The normal production run of system system；
2, can On-line construction, especially suitable for existing industrial furnace system be transformed；
3, the sensible heat and part vapor latent heat in 120 ~ 200 DEG C of low-temperature flue gas are recycled, fuel consumption is reduced, improves work
Industry furnace thermal efficiency；
4, by using special material and structure, dew point corrosion and acid and alkali corrosion are solved the problems, such as, guarantees system equipment and portion
Part service life；
5, flue gas low-temperature UTILIZATION OF VESIDUAL HEAT IN and desulphurization denitration dedusting eliminating white smoke integration；
6, denitration efficiency >=80%；No the escaping of ammonia, catalyst poisoning failure, reaction product block follow-up equipment problem；
7, desulfuration efficiency >=90%；
8, it without additionally consuming the cooled flue gas water needed to meet desulfurization reaction temperature, saves water；
9, further cooled down by flue gas, vapor is largely condensed in flue gas, reduces water vapour content in flue gas, cold
Lime set can dissolve and absorb the higher nitrogen oxides and SOx that part reaction generates, and adsorb the soot dust granule object in flue gas；Flue gas
Preliminary purification is obtained (in flue gas in NOx, SOx and the not high situation of soot dust granule object content, it may not be necessary to subsequent washing
Absorption tower)；
10, flue gas condensing heat exchange and desulfurization and denitrification reaction and initial absorption carry out in an equipment, without setting respectively
It sets, reduces occupied area, reduce investment outlay；
11, the demister being arranged captures water mist drop in flue gas, reduces water existing for discharge flue fog drip shape；
12, flue gas heating device heats up cold flue gas, increases flue gas diffusivity, and reducing chimney, locally around area pollutes
Object concentration (if pollutant concentration and water vapour content are very low in flue gas, can not set flue gas heating device)；
13, can achieve the purpose that recovered flue gas low temperature exhaust heat and desulphurization denitration dedusting demisting eliminating white smoke simultaneously, it can be achieved that
Flue gas ultra-clean zero release of pollutant while ensureing production safety, reaches energy conservation and mitigates environmental pollution, eliminate visual pollution
Purpose；
14, the water-saving section steam quadruple effect unification of energy-saving and emission-reduction；
15, system is simple, and occupied area is small, once invests small, and operating cost is low；
16, all kinds of medium small boilers, petroleum refining, petrochemical industry, chemistry, chemical fibre, iron and steel metallurgy, glass be can be widely applied to
Industrial furnace system in the industries such as glass ceramic building material.
Detailed description of the invention
Fig. 1 be a kind of industrial furnace low-temperature flue gas waste heat of the utility model utilize and desulfurization nitre eliminating white smoke integral system one compared with
Schematic diagram in good embodiment；
Fig. 2 be a kind of industrial furnace low-temperature flue gas waste heat of the utility model utilize and desulfurization nitre eliminating white smoke integral system one compared with
Another schematic diagram in good embodiment；
Fig. 3 be a kind of industrial furnace low-temperature flue gas waste heat of the utility model utilize and desulfurization nitre eliminating white smoke integral system one compared with
Another schematic diagram in good embodiment；
Fig. 4 be a kind of industrial furnace low-temperature flue gas waste heat of the utility model utilize and desulfurization nitre eliminating white smoke integral system one compared with
An also schematic diagram in good embodiment.
Specific embodiment
The preferred embodiment of the utility model is described in detail below, so that the advantages of the utility model and feature energy
It is easier to be readily appreciated by one skilled in the art, to be more clearly defined the protection scope of the utility model.
It is described in the utility model for a kind of industrial furnace low-temperature flue gas waste heat utilize and desulfurization nitre eliminating white smoke integral system, such as
Shown in Fig. 1-4, including booster fan 1, multiply refrigerant heat-exchange system 2, flow control valve 3, flow meter 4, flue gas condensing and
Mist resistant filter 6 and chimney 7, the cigarette of the booster fan 1 and multiply refrigerant heat-exchange system 2 are removed in Benitration reactor, lye pond 5
Gas feeder connection is correspondingly arranged, and the flue gas condensing and Benitration reactor include the first flue gas condensing and Benitration reactor 8, described
The exhaust gases passes outlet of multiply refrigerant heat-exchange system 2 is corresponding with the exhaust gases passes entrance of the first flue gas condensing and Benitration reactor 8
Setting, the flow control valve 3 and flow meter 4 be correspondingly arranged, the flow meter 4 also with multiply refrigerant heat-exchange system
2 exhaust gases passes outlet and the exhaust gases passes outlet of the first flue gas condensing and Benitration reactor 8 are correspondingly arranged, first flue gas
The exhaust gases passes outlet of condensation and Benitration reactor 8 is correspondingly arranged with lye pond 5 and except mist resistant filter 6 respectively, the demisting mistake
Filter 6 is correspondingly arranged with chimney 7.
Embodiment one
As shown in Figure 1, further including oxidizer systems 9, oxidant activator appliance 10, denitrating catalyst 11, the second flue gas condensing
And Benitration reactor 12, third flue gas condensing and Benitration reactor 13 and flue gas heating device 14, the oxidizer systems 9 and flow
Regulating valve 3 is correspondingly arranged, and the flow meter 4 passes through the cigarette with multiply refrigerant heat-exchange system 2 respectively of oxidant activator appliance 10
Gas channel outlet and the exhaust gases passes outlet of the first flue gas condensing and Benitration reactor 8 are correspondingly arranged, the denitrating catalyst 11
It is set to the exhaust gases passes inlet of first flue gas condensing and Benitration reactor 8, first flue gas condensing and denitration are anti-
Device 8, the second flue gas condensing and Benitration reactor 12 and third flue gas condensing and Benitration reactor 13 is answered to be corresponding in turn to setting, it is described
The exhaust gases passes outlet of third flue gas condensing and Benitration reactor 13 is correspondingly arranged with lye pond 5 and except mist resistant filter 6 respectively, institute
The cold fluid pass of flue gas heating device 14 is stated respectively and except mist resistant filter 6 and chimney 7 are correspondingly arranged, further includes condensate liquid processing system
System 15 and desulphurization denitration scrubbing tower 16, the condensation liquid treating system 15 are set to third flue gas condensing and Benitration reactor 13
The exhaust gases passes outlet of exhaust gases passes outlet, the third flue gas condensing and Benitration reactor 13 is also washed with the desulphurization denitration
The lower end of tower 16 is correspondingly arranged, and the lower end of the desulphurization denitration scrubbing tower 16 is also correspondingly connected with lye pond 5, and the desulfurization is de-
Top in nitre scrubbing tower 16 is provided with except mist resistant filter 6 and is correspondingly arranged with the cold fluid pass entrance of flue gas heating device 14,
The lye pond 5 is correspondingly connected with below mist resistant filter 6 by the removing in desulphurization denitration scrubbing tower 16 of pump 17 and is provided with alkali nozzle
18。
Embodiment two
As shown in Fig. 2, further including oxidizer systems 9, oxidant activator appliance 10, denitrating catalyst 11, the second flue gas condensing
And Benitration reactor 12, third flue gas condensing and Benitration reactor 13 and flue gas heating device 14, the oxidizer systems 9 and flow
Regulating valve 3 is correspondingly arranged, and the flow meter 4 passes through the cigarette with multiply refrigerant heat-exchange system 2 respectively of oxidant activator appliance 10
Gas channel outlet and the exhaust gases passes outlet of the first flue gas condensing and Benitration reactor 8 are correspondingly arranged, the denitrating catalyst 11
It is set to the exhaust gases passes inlet of first flue gas condensing and Benitration reactor 8, first flue gas condensing and denitration are anti-
Device 8, the second flue gas condensing and Benitration reactor 12 and third flue gas condensing and Benitration reactor 13 is answered to be corresponding in turn to setting, it is described
The exhaust gases passes outlet of third flue gas condensing and Benitration reactor 13 is correspondingly arranged with lye pond 5 and except mist resistant filter 6 respectively, institute
The cold fluid pass of flue gas heating device 14 is stated respectively and except mist resistant filter 6 and chimney 7 are correspondingly arranged, further includes condensate liquid processing system
System 15 and desulphurization denitration scrubbing tower 16, the condensation liquid treating system 15 are set to third flue gas condensing and Benitration reactor 13
The exhaust gases passes outlet of exhaust gases passes outlet, the third flue gas condensing and Benitration reactor 13 is also washed with the desulphurization denitration
The lower end of tower 16 is correspondingly arranged, and the lower end of the desulphurization denitration scrubbing tower 16 is also correspondingly connected with lye pond 5, and the desulfurization is de-
Top in nitre scrubbing tower 16 is provided with except mist resistant filter 6 and is correspondingly arranged with the cold fluid pass entrance of flue gas heating device 14,
The lye pond 5 is correspondingly connected with below mist resistant filter 6 by the removing in desulphurization denitration scrubbing tower 16 of pump 17 and is provided with alkali nozzle
18, the booster fan 1 is also correspondingly arranged with the exhaust gases passes entrance of flue gas heating device 14, the flue gas of the flue gas heating device 14
Channel outlet and the exhaust gases passes outlet of multiply refrigerant heat-exchange system 2 are correspondingly arranged.
Embodiment three
As shown in figure 3, further including oxidizer systems 9, oxidant activator appliance 10, denitrating catalyst 11, the second flue gas condensing
And Benitration reactor 12, third flue gas condensing and Benitration reactor 13 and flue gas heating device 14, the oxidizer systems 9 and flow
Regulating valve 3 is correspondingly arranged, and the flow meter 4 passes through the cigarette with multiply refrigerant heat-exchange system 2 respectively of oxidant activator appliance 10
Gas channel outlet and the exhaust gases passes outlet of the first flue gas condensing and Benitration reactor 8 are correspondingly arranged, the denitrating catalyst 11
It is set to the exhaust gases passes inlet of first flue gas condensing and Benitration reactor 8, first flue gas condensing and denitration are anti-
Device 8, the second flue gas condensing and Benitration reactor 12 and third flue gas condensing and Benitration reactor 13 is answered to be corresponding in turn to setting, it is described
The exhaust gases passes outlet of third flue gas condensing and Benitration reactor 13 is correspondingly arranged with lye pond 5 and except mist resistant filter 6 respectively, institute
The cold fluid pass of flue gas heating device 14 is stated respectively and except mist resistant filter 6 and chimney 7 are correspondingly arranged, the lye pond 5 is through pump 17
By alkali nozzle 18 respectively with the exhaust gases passes entrance and third flue gas condensing of third flue gas condensing and Benitration reactor 13 and de-
The exhaust gases passes outlet of nitre reactor 13 is correspondingly arranged.
Example IV
As shown in figure 4, further including ozonation system 19, flue gas distributor 20, the first flue gas condensing and denitration reaction washer
21, the second flue gas condensing and denitration reaction washer 22 and washing section 23, the ozonation system 19 are corresponding with flow control valve 3
Setting, the flue gas distributor 20 are located at the exhaust gases passes entrance of first flue gas condensing and Benitration reactor 8, and described first
Flue gas condensing and denitration reaction washer 21, the second flue gas condensing and denitration reaction washer 22 and washing section 23 are corresponding in turn to
Be arranged and be located at the exhaust gases passes outlet of first flue gas condensing and Benitration reactor 8, the washing section 23 respectively with lye
Pond 5 and except mist resistant filter 6 is correspondingly arranged, the lye pond 5 also through pump 17 by alkali nozzle 18 be set to the second flue gas condensing and
At the exhaust gases passes entrance of denitration reaction washer 22 and the exhaust gases passes outlet of washing section 23, the lye pond 5 also with chimney 7
Bottom be correspondingly arranged.
This system process is as follows:
1.1. it is cold to enter multiply for 120 ~ 200 DEG C of the low-temperature flue gas come from industrial furnace system after being pressurized by booster fan
Matchmaker's heat-exchange system exchanges heat with refrigerant therein, and flue-gas temperature is down to 60 DEG C ~ 100 DEG C；
1.2. 60 DEG C ~ 100 DEG C flue gases enter in flue gas condensing and Benitration reactor, the activation come from oxidizer systems
Oxidant is oxidized to the NO in flue gas in reactor readily soluble higher nitrogen oxides as oxidant；Simultaneously flue gas with it is cold
Flue-gas temperature, is down to 30 ~ 60 DEG C by matchmaker's heat exchange, and most of vapor (60% ~ 80%) in flue gas is made to be condensed into water, condensed water dissolution
The higher nitrogen oxides and SOx that part reaction generates are absorbed, and adsorb the soot dust granule object in flue gas；Condensed water is arranged by pipeline
Enter alkaline matter in lye pond and pond and neutralization reaction occurs, liquid is discharged into sewerage and discharge, or conveying is uniformly processed after reaction
Recycling treatment is carried out to following resource processing system (to use as being sent into Boiler water treatment system as raw water, save and use
Water)；
1.3. 30 ~ 60 DEG C of flue gases come out from flue gas condensing and Benitration reactor, into desulphurization denitration scrubbing tower, with tower
The lye of interior spray reacts, and reaction product is the Nitrates and Sulfates for being dissolved in water, arranges together with lye after reaction
Enter lye pond out, concentration is emitted into sewerage and discharge is uniformly processed, or is delivered to following resource processing system and is provided
Sourceization processing；
1.4. it is logical to come out purifying smoke (being stripped of most of Nox, SOx, H2O, soot dust granule object, part CO2) for scrubbing tower
That crosses setting removes mist resistant filter, is dripped with capturing water mist in flue gas, reduces water existing for flue fog drip shape, except mist resistant filter is arranged
Facility is cleaned, its fog removal performance is kept；
1.5. except 30 ~ 60 DEG C of cold flue gas that mist resistant filter comes out enter flue gas heating device and 120 ~ 200 from industrial furnace
DEG C hot fume exchange heat, be warming up to 60 ~ 80 DEG C and be discharged into atmosphere into chimneys, hot fume is cooled to 80 ~ 100 DEG C and enters flue gas
The exhaust gases passes inlet of condensation and Benitration reactor participates in reaction and subsequent process.
Described in the utility model is a kind of utilization of industrial furnace low-temperature flue gas waste heat and desulfurization nitre eliminating white smoke integral system, sheet
Utility model has the advantages that
1, system, which is arranged, shows tail flue gas exit in industrial furnace, can cut out from system at any time, not influence industrial furnace sheet
The normal production run of system system；
2, can On-line construction, especially suitable for existing industrial furnace system be transformed；
3, the sensible heat and part vapor latent heat in 120 ~ 200 DEG C of low-temperature flue gas are recycled, fuel consumption is reduced, improves work
Industry furnace thermal efficiency；
4, by using special material and structure, dew point corrosion and acid and alkali corrosion are solved the problems, such as, guarantees system equipment and portion
Part service life；
5, flue gas low-temperature UTILIZATION OF VESIDUAL HEAT IN and desulphurization denitration dedusting eliminating white smoke integration；
6, denitration efficiency >=80%；No the escaping of ammonia, catalyst poisoning failure, reaction product block follow-up equipment problem；
7, desulfuration efficiency >=90%；
8, it without additionally consuming the cooled flue gas water needed to meet desulfurization reaction temperature, saves water；
9, further cooled down by flue gas, vapor is largely condensed in flue gas, reduces water vapour content in flue gas, cold
Lime set can dissolve and absorb the higher nitrogen oxides and SOx that part reaction generates, and adsorb the soot dust granule object in flue gas；Flue gas
Preliminary purification is obtained (in flue gas in NOx, SOx and the not high situation of soot dust granule object content, it may not be necessary to subsequent washing
Absorption tower)；
10, flue gas condensing heat exchange and desulfurization and denitrification reaction and initial absorption carry out in an equipment, without setting respectively
It sets, reduces occupied area, reduce investment outlay；
11, the demister being arranged captures water mist drop in flue gas, reduces water existing for discharge flue fog drip shape；
12, flue gas heating device heats up cold flue gas, increases flue gas diffusivity, and reducing chimney, locally around area pollutes
Object concentration (if pollutant concentration and water vapour content are very low in flue gas, can not set flue gas heating device)；
13, can achieve the purpose that recovered flue gas low temperature exhaust heat and desulphurization denitration dedusting demisting eliminating white smoke simultaneously, it can be achieved that
Flue gas ultra-clean zero release of pollutant while ensureing production safety, reaches energy conservation and mitigates environmental pollution, eliminate visual pollution
Purpose；
14, the water-saving section steam quadruple effect unification of energy-saving and emission-reduction；
15, system is simple, and occupied area is small, once invests small, and operating cost is low；
16, all kinds of medium small boilers, petroleum refining, petrochemical industry, chemistry, chemical fibre, iron and steel metallurgy, glass be can be widely applied to
Industrial furnace system in the industries such as glass ceramic building material.
The foregoing is merely specific embodiment of the present utility model, but the protection scope of the utility model is not limited to
This, anyone skilled in the art, can be without creative work in the technical scope disclosed by the utility model
The change or replacement expected, should be covered within the scope of the utility model.Therefore, the protection scope of the utility model
It should be determined by the scope of protection defined in the claims.
Claims (6)
1. a kind of industrial furnace low-temperature flue gas waste heat utilizes and desulfurization nitre eliminating white smoke integral system, it is characterised in that: including pressurization
Blower, multiply refrigerant heat-exchange system, flow control valve, flow meter, flue gas condensing and Benitration reactor, lye pond, demisting
The exhaust gases passes entrance of filter and chimney, the booster fan and multiply refrigerant heat-exchange system is correspondingly arranged, the flue gas
Condensation and Benitration reactor include the first flue gas condensing and Benitration reactor, and the exhaust gases passes of the multiply refrigerant heat-exchange system go out
The exhaust gases passes entrance of mouth and the first flue gas condensing and Benitration reactor is correspondingly arranged, the flow control valve and flow meter
Be correspondingly arranged, the flow meter also with the exhaust gases passes outlet of multiply refrigerant heat-exchange system and the first flue gas condensing and denitration
The exhaust gases passes outlet of reactor is correspondingly arranged, the exhaust gases passes outlet of first flue gas condensing and Benitration reactor respectively with
Lye pond and except mist resistant filter is correspondingly arranged, it is described except mist resistant filter is correspondingly arranged with chimney.
2. industrial furnace low-temperature flue gas waste heat according to claim 1 utilizes and desulfurization nitre eliminating white smoke integral system, special
Sign is: further including oxidizer systems, oxidant activator appliance, denitrating catalyst, the second flue gas condensing and Benitration reactor, third
Flue gas condensing and Benitration reactor and flue gas heating device, the oxidizer systems are correspondingly arranged with flow control valve, the flow
Quantifier by oxidant activator appliance respectively with the exhaust gases passes outlet of multiply refrigerant heat-exchange system and the first flue gas condensing and de-
The exhaust gases passes outlet of nitre reactor is correspondingly arranged, and the denitrating catalyst is set to first flue gas condensing and denitration reaction
The exhaust gases passes inlet of device, first flue gas condensing and Benitration reactor, the second flue gas condensing and Benitration reactor and
Three flue gas condensings and Benitration reactor are corresponding in turn to setting, the exhaust gases passes outlet of the third flue gas condensing and Benitration reactor
Be correspondingly arranged respectively with lye pond and except mist resistant filter, the cold fluid pass of the flue gas heating device respectively with except mist resistant filter and
Chimney is correspondingly arranged.
3. industrial furnace low-temperature flue gas waste heat according to claim 2 utilizes and desulfurization nitre eliminating white smoke integral system, special
Sign is: further including that condensation liquid treating system and desulphurization denitration scrubbing tower, the condensation liquid treating system are set to third flue gas
The exhaust gases passes outlet of condensation and Benitration reactor, the exhaust gases passes outlet of the third flue gas condensing and Benitration reactor also with
The lower end of the desulphurization denitration scrubbing tower is correspondingly arranged, and the lower end of the desulphurization denitration scrubbing tower is also corresponding with lye pond to be connected
Connect, the top in the desulphurization denitration scrubbing tower be provided with except mist resistant filter and with the cold fluid pass entrance pair of flue gas heating device
It should be arranged, the lye pond is correspondingly connected with below mist resistant filter by pump removing in desulphurization denitration scrubbing tower and is provided with alkali spray
Mouth.
4. industrial furnace low-temperature flue gas waste heat according to claim 3 utilizes and desulfurization nitre eliminating white smoke integral system, special
Sign is: the booster fan is also correspondingly arranged with the exhaust gases passes entrance of flue gas heating device, the flue gas of the flue gas heating device
Channel outlet and the exhaust gases passes outlet of multiply refrigerant heat-exchange system are correspondingly arranged.
5. industrial furnace low-temperature flue gas waste heat according to claim 2 utilizes and desulfurization nitre eliminating white smoke integral system, special
Sign is: the lye pond pumped by alkali nozzle respectively with the exhaust gases passes entrance of third flue gas condensing and Benitration reactor and
The exhaust gases passes outlet of third flue gas condensing and Benitration reactor is correspondingly arranged.
6. industrial furnace low-temperature flue gas waste heat according to claim 1 utilizes and desulfurization nitre eliminating white smoke integral system, special
Sign is: further include ozonation system, flue gas distributor, the first flue gas condensing and denitration reaction washer, the second flue gas condensing and
Denitration reaction washer and washing section, the ozonation system are correspondingly arranged with flow control valve, and the flue gas distributor is located at
The exhaust gases passes entrance of first flue gas condensing and Benitration reactor, first flue gas condensing and denitration reaction washer,
Second flue gas condensing and denitration reaction washer and washing section, which are corresponding in turn to, to be arranged and is located at first flue gas condensing and take off
The exhaust gases passes outlet of nitre reactor, the washing section are correspondingly arranged with lye pond and except mist resistant filter respectively, the lye pond
The also cigarette through pumping the exhaust gases passes entrance and washing section that are set to the second flue gas condensing and denitration reaction washer by alkali nozzle
Gas channel exit, the lye pond are also correspondingly arranged with the bottom of chimney.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109210955A (en) * | 2018-10-19 | 2019-01-15 | 上海孚旺炉业有限公司 | A kind of industrial furnace low-temperature flue gas waste heat utilizes and desulfurization nitre eliminating white smoke integral system |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109210955A (en) * | 2018-10-19 | 2019-01-15 | 上海孚旺炉业有限公司 | A kind of industrial furnace low-temperature flue gas waste heat utilizes and desulfurization nitre eliminating white smoke integral system |
| CN109210955B (en) * | 2018-10-19 | 2024-03-26 | 上海孚旺炉业有限公司 | Industrial furnace low temperature flue gas waste heat utilization and SOx/NOx removal white smoke integrated system |
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