CN205995262U - Compound dioxygen oxidation and denitration device - Google Patents
Compound dioxygen oxidation and denitration device Download PDFInfo
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- CN205995262U CN205995262U CN201620994615.5U CN201620994615U CN205995262U CN 205995262 U CN205995262 U CN 205995262U CN 201620994615 U CN201620994615 U CN 201620994615U CN 205995262 U CN205995262 U CN 205995262U
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Abstract
This utility model belongs to the denitration process technical field containing smoke of gunpowder gas, a kind of compound dioxygen oxidation and denitration device is specifically provided, including denitrating tower (1), the first atomizing sprinkling system (3), first circulation pump (4), dosing pump (5) and denitrfying agent solution reservoir (6), first atomizing sprinkling system (3) is located at denitrating tower (1) inside, and the first atomizing sprinkling system (3), first circulation pump (4) and denitrfying agent solution reservoir (6) constitute circulation denitration system.The denitration efficiency of the compound dioxygen oxidation and denitration device that this utility model provides is high, early stage capital construction and later stage operating cost is relatively low, good reliability, and the low temperature flue gas being capable of the difficult type of furnace discharge to chain furnace, incinerator, kiln etc. carries out denitration process.
Description
Technical field
This utility model belongs to denitration process technical field containing smoke of gunpowder gas and in particular to a kind of compound dioxygen oxidation and denitration
Device.
Background technology
Nitrogen oxides and sulfide etc. are contained multiple in the flue gas of the type of furnace working displacement such as chain furnace, incinerator, kiln
Pollutant, direct discharge can cause atmospheric pollution, need to after desulphurization denitration dust removal process qualified discharge.Due to chain furnace, burn
Burn the type of furnace furnace operation temperature such as stove, kiln below 700 DEG C, most of the time at 550 DEG C about, and with temperature Change at any time
Adjustment boiler load, causes fire box temperature and discharge smoke temperature change larger, is therefore not suitable for using SCR, SNCR and low
NOxAny one of combustion technology technique.
The flue gas that in prior art, the difficult type of furnace is discharged for the low flue-gas temperature such as chain furnace, incinerator, kiln is (wherein
Nitrogen oxides 90% about be all the NO being insoluble in water), mainly have following several denitration process method：
1st, plasma technology denitration：Flue gas flows through plasma producing apparatus, directly bombards and free radical in high energy electron
In the presence of, nitric oxide is oxidized to high-valence state nitrogen oxides.
2nd, ozone denitration：There is room in source of oxygen injection of ozone, in high-frequency and high-voltage electric field, oxygen is converted into Strong oxdiative
The ozone of property, with the NO in flue gasxHybrid reaction, the NO not dissolved in water is oxidized to high-valence state nitrogen oxides soluble in water.
3rd, hydrogen peroxide denitration：H2O2There is stronger oxidability, reacted with smoke contacts by spray, water will not be dissolved in
NO be oxidized to high-valence state nitrogen oxides soluble in water.
Three of the above denitration process method is all, by respective mode, water-fast NO is oxidized to NO2、N2O3、N2O5Deng
High-valence state nitrogen oxides soluble in water, are absorbed by alkaline absorption solution afterwards.The problem that each of which exists has purchase plasma
The initial investment cost of generating meanss is very high, and plasma generator is also very high to entering its internal flue gas mass requirement,
Increased the investment of dust pelletizing system before denitration；The initial investment buying ozonator is relatively costly, and generation 1kg ozone needs
Consume about 7 degree of electricity, later stage operation cost is also higher；Hydrogen peroxide can simultaneous oxidation NOxAnd SO2, consumption is too big, and the effect of hydrogen peroxide
Rate is relatively low, and up to 60% about.
In sum, one kind difficult type of furnace discharge low temperature flue gas can take off to chain furnace, incinerator, kiln etc.
Nitre is processed, and denitration efficiency height, early stage capital construction and relatively low, good reliability the denitrification apparatus of later stage operating cost are urgently developed.
Utility model content
In order to solve the problems referred to above of prior art presence, this utility model purpose be to provide a kind of denitration efficiency high,
Early stage capital construction and relatively low, good reliability the compound dioxygen oxidation and denitration device of later stage operating cost, realize to chain furnace, burning
The difficult type of furnace such as stove, kiln discharges the denitration process of low temperature flue gas.
The technical scheme that this utility model is adopted is：
This utility model provides a kind of compound dioxygen oxidation and denitration device, including denitrating tower, the first atomizing sprinkling system,
First circulation pump, dosing pump and denitrfying agent solution reservoir；The lower sidewall of described denitrating tower is provided with denitrating tower air inlet, described
The top of denitrating tower is provided with denitrating tower gas outlet；Described first atomizing sprinkling system is located inside described denitrating tower, and is located at
Between described denitrating tower air inlet and described denitrating tower gas outlet；The inlet of described first circulation pump and the bottom of described denitrating tower
Portion connects, and the liquid outlet of described first circulation pump is connected with described first atomizing sprinkling system by connecting tube；Described dosing pump
Liquid outlet connect with the input duct of described first circulation pump, the inlet of described dosing pump and described denitrfying agent solution reservoir
Connection.
From the point of view of lifting denitration effect further, inside described denitrating tower, it is additionally provided with cyclone, described rotation
Stream device is located between described denitrating tower air inlet and described first atomizing sprinkling system.
Need to set up wet desulphurization absorption tower, with right after this utility model is combined the denitrating tower of dioxygen oxidation and denitration device
Flue gas carries out desulfurization process the higher nitrogen oxides absorbing in flue gas, realizes the purpose of desulphurization denitration.Wet desulphurization absorption tower
Concrete structure can use for reference using existing wet desulphurization absorption tower structure.
In order to preferably be combined among compound dioxygen oxidation and denitration device of the present utility model, in aforementioned practicality
On the basis of new compound dioxygen oxidation and denitration device, this utility model also provides two kinds of Composite Double covering desulfurizing function
Oxygen oxidation and denitration device.
The first covers the compound dioxygen oxidation and denitration device of desulfurizing function, to be combined wet desulphurization absorption tower is mainly
Mentality of designing direction, specific as follows：
Also include the first Flat defroster, wet desulphurization absorption tower, the second atomizing sprinkling system and second circulation pump；Institute
State the first Flat defroster to be located inside described denitrating tower, and go out positioned at described first atomizing sprinkling system and described denitrating tower
Between QI KOU；The lower sidewall of described wet desulphurization absorption tower is provided with wet desulphurization absorption tower air inlet, described wet desulphurization
The top on absorption tower is provided with wet desulphurization absorption tower gas outlet, and described wet desulphurization absorption tower air inlet and described denitrating tower go out
QI KOU connects；Described second atomizing sprinkling system is located inside described wet desulphurization absorption tower, and is located at described wet desulphurization suction
Receive between tower air inlet and described wet desulphurization absorption tower gas outlet；The inlet of described second circulation pump and described wet desulphurization
The bottom connection on absorption tower, the liquid outlet of described second circulation pump is connected with described second atomizing sprinkling system.
It is further preferred that also including the second Flat defroster and landing chimney；Described second Flat defroster position
Inside described wet desulphurization absorption tower, and it is located at described second atomizing sprinkling system and described wet desulphurization absorption tower gas outlet
Between；The described chimney that lands is connected with described wet desulphurization absorption tower gas outlet.
Second covers the compound dioxygen oxidation and denitration device of desulfurizing function, mainly de- to be integrated into desulfurizing function
In nitre tower, to reduce initial stage input cost for mentality of designing direction, specific as follows：
Also include the outer slurry tank of the second atomizing sprinkling system, second circulation pump, collecting tank and tower；Described second atomizing spray
System is located inside described denitrating tower, and is located between described first atomizing sprinkling system and described denitrating tower gas outlet；Described
Collecting tank is located inside described denitrating tower, and be located at described second atomizing sprinkling system and described first atomizing sprinkling system it
Between, and it is located at the underface of described second atomizing sprinkling system；The bottom of described collecting tank slurry tank outer with described tower connects；Institute
The bottom stating the inlet of second circulation pump with the outer slurry tank of described tower connect, the liquid outlet of described second circulation pump and described the
Two atomizing sprinkling system connections.
Preferably, the medial wall of described denitrating tower is additionally provided with the guide ring in collecting tank described in guiding fluid, institute
State guide ring to be located between described second atomizing sprinkling system and described collecting tank.By the design of guide ring, can be very good
The liquid guiding the second atomizing sprinkling system discharge smoothly flows into collecting tank to recycle, it is to avoid the second atomizing sprinkling system is discharged
Liquid direct current enter denitration tower bottom enter denitration fluid circulation.
In order to play good guide effect, guide ring at least its upper surface should ecto-entad tilt gradually downward.
If the lower surface of guide ring is level levelling or even ecto-entad gradually rises, the flow rate of liquid accepted in guide ring
It is very easy to when relatively low and the lower surface trickling along guide ring, and then enter denitrating tower along the trickling of denitration tower side wall
Bottom.In order to avoid this kind of situation occurs, the upper and lower surface of described guide ring is both designed as from outside to inside gradually downward
Tilt, under this design, even guide ring carrying flow rate of liquid is very slow, also will not trickle along guide ring lower surface, and only
Can instill in collecting tank.Defer to conventional understanding custom, with the central axis zone of denitrating tower for " interior " in this utility model, relatively
, with the direction of the central axis zone away from denitrating tower for " outward ".
It is additionally provided with the second Flat defroster, described second Flat defroster is located at described the inside described denitrating tower
Between two atomizing sprinkling systems and described denitrating tower gas outlet.
It is provided with direct exhaust chimney at described denitrating tower gas outlet.Direct exhaust chimney ratio lands chimney and reduces construction cost, by
Do not need flue to connect in direct exhaust chimney, decrease the investment cost of flue, it also avoid flue and asked by flue gas heavy corrosion
Topic.
Also include dust arrester, the gas outlet of described dust arrester is connected with described denitrating tower air inlet.Described dedusting dress
Put to be the cleaner unit of any one form of comprising sack cleaner.
Two atomizing sprinkling system effects in this utility model are all its internal liquid to be become the gas that nebulizes, to increase
Plus the contact area with flue gas, improve treatment effect.Specific atomizing sprinkling system structure can be from of the prior art normal
Rule technology, than more typical a kind of be pipeline arrange in pairs or groups shower nozzle form, pipeline arranges multiple liquid outlets, each liquid outlet position
It is correspondingly arranged a shower nozzle, the liquid in pipeline is atomized into by vaporific gas by the effect of shower nozzle.
In this utility model, the denitration of compound dioxygen oxidation and denitration device providing and preferred desulfurization principle are：By de-
NO in flue gas is optionally oxidized to NO by the denitration reaction of nitre liquid2, the then follow-up wet desulphurization absorption tower of flue gas entrance
Or desulphurization system carries out desulfurization and absorbs the high-valence state nitrogen oxides soluble in water being produced by denitration liquid oxidation, NOXWith suction
Receive liquid reaction to be absorbed, presented in nitrite or nitrate, the difference finally regarding desulfurization method is with waste residue or useless
The form discharge system of water.
Based on the above, the compound dioxygen oxidation and denitration device that this utility model provides has advantages below：
1st, denitration efficiency is high, and denitration efficiency is up to more than 90%.
2nd, NO in the gas of final dischargeXConcentration is stably less than 50mg/m3, meet boiler or thermal power plant's atmosphere pollution
Minimum discharge requires.
3rd, be applied to all boilers and low-temperature flue gas to process, do not affected by temperature and load, be particularly well-suited to chain furnace,
The denitrating flue gas of incinerator, kiln and heating boiler are processed.
4th, early stage infrastructure investment is few, and operating cost is low, and more conventional General low temperature oxidizing process denitration technology can save 75% about
Investment and operating cost, substantially reduce owner investment and run burden.Construction period is short, and construction investment is few, is particularly suitable for
It has been configured with the transformation of the various type of furnaces of wet desulphurization.
5th, reaction temperature is low, after flue dust can first preheated recycle, then carries out denitration process by this utility model, no
Impact waste heat recovery.
6th, denitrification process gas residence time is short, and denitration process speed is fast.For ensure combination denitration liquid recycle and
Denitration effect, gas residence time generally can reach denitration target in 1～3 second；Denitrification process selective oxidation NO, denitrfying agent
Utilization rate is high.
7th, easy to adjust, stablize controlled, can be by controlling the dosage of denitrfying agent by NO in flue gasXConcentration stable
Control within the range of permission.
8th, the resistance≤550Pa of whole denitrating system, resistance is little, and flue gas can smoothly circulate operation.
9th, denitrfying agent storage safety, there is not ammonia, hydrogen peroxide etc. has the potential safety hazard causing explosion accident, does not also exist
Ozone leakage can cause the potential safety hazard of human body poisoning.
10th, floor space is little, and especially second covers the compound dioxygen oxidation and denitration device of desulfurizing function, by denitration
It is integrated in a tower with desulfurizing function, save floor space to greatest extent.
11st, operation regulation and control are simple, operational management is convenient, stability is high, good reliability.
Brief description
Fig. 1 is the structural representation of the compound dioxygen oxidation and denitration device of an embodiment of the present utility model；
Fig. 2 is the structural representation of the compound dioxygen oxidation and denitration device of another embodiment of the present utility model；
Fig. 3 is a kind of preferred structure of the guide ring in this utility model and the partial structural diagram of adjacent area.
In figure：1 is denitrating tower, and 11 is denitrating tower air inlet, and 12 is denitrating tower gas outlet；2 is cyclone；3 is the first mist
Change spray system；4 is first circulation pump；5 is dosing pump；6 is denitrfying agent solution reservoir；7 is wet desulphurization absorption tower, and 71 is wet
Method desulfuration absorbing tower air inlet, 72 is wet desulphurization absorption tower gas outlet；8 is the second atomizing sprinkling system；9 is flat for second
Demister；10 is second circulation pump；20 is to land chimney, and 21 is direct exhaust chimney；30 is guide ring；40 is collecting tank；50 is tower
Outer slurry tank；60 is the first Flat defroster.
Specific embodiment
Below in conjunction with the accompanying drawings and specific embodiment is further explained to this utility model.
Embodiment 1：
The present embodiment provides a kind of compound dioxygen oxidation and denitration device, including denitrating tower 1, the first atomizing sprinkling system 3, the
One Flat defroster 60, first circulation pump 4, dosing pump 5 and denitrfying agent solution reservoir 6；The lower sidewall of described denitrating tower 1 sets
It is equipped with denitrating tower air inlet 11, the top of described denitrating tower 1 is provided with denitrating tower gas outlet 12；Described first atomizing sprinkling system
3 are located inside described denitrating tower 1, and are located between described denitrating tower air inlet 11 and described denitrating tower gas outlet 12；Described
One Flat defroster 60 is located inside described denitrating tower 1, and goes out positioned at described first atomizing sprinkling system 3 and described denitrating tower
Between QI KOU 12；The inlet of described first circulation pump 4 is connected with the bottom of described denitrating tower 1, the going out of described first circulation pump 4
Liquid mouth is connected with described first atomizing sprinkling system 3 by connecting tube；The liquid outlet of described dosing pump 5 and described first circulation pump
4 input duct connection, the inlet of described dosing pump 5 is connected with described denitrfying agent solution reservoir 6.
Preferably improve in embodiment at another, inside described denitrating tower 1, be additionally provided with cyclone 2, described cyclone 2
Between described denitrating tower air inlet 11 and described first atomizing sprinkling system 3.
Preferably improve in embodiment at another, also include wet desulphurization absorption tower 7, the second atomizing sprinkling system 8,
Two circulating pumps 10, the second Flat defroster 9 and land chimney 20；The lower sidewall of described wet desulphurization absorption tower 7 is provided with
Wet desulphurization absorption tower air inlet 71, the top of described wet desulphurization absorption tower 7 is provided with wet desulphurization absorption tower gas outlet 72,
Described wet desulphurization absorption tower air inlet 71 is connected with described denitrating tower gas outlet 12；Described second atomizing sprinkling system 8 is located at
Inside described wet desulphurization absorption tower 7, and it is located at described wet desulphurization absorption tower air inlet 71 and described wet desulphurization absorption tower
Between gas outlet 72；The inlet of described second circulation pump 10 is connected with the bottom of described wet desulphurization absorption tower 7, and described second
The liquid outlet of circulating pump 10 is connected with described second atomizing sprinkling system 8.Described second Flat defroster 9 is located at described wet
Inside method desulfuration absorbing tower 7, and be located at described second atomizing sprinkling system 8 and described wet desulphurization absorption tower gas outlet 72 it
Between；The described chimney 20 that lands is connected with described wet desulphurization absorption tower gas outlet 72.
Preferably improve in embodiment at another, also include sack cleaner, the gas outlet of described sack cleaner with
Described denitrating tower air inlet 11 connects.Obvious, under the technology of the present invention is enlightened, sack cleaner can also be substituted for other
Any one cleaner unit, these belong to the direct replacement of equivalent feature, are encompassed by within the scope of the present invention.
When the compound dioxygen oxidation and denitration device of the present embodiment 1 is specifically used：Allocate in denitrfying agent solution reservoir 6 in advance
Good denitration liquid, then starts dosing pump 5, and denitration liquid is to enter first circulation pump 4 along through dosing pump 5, and first circulation pump 4 is by denitration
Liquid is delivered to the first atomizing sprinkling system 3, and denitration liquid is atomized the gas that nebulizes and is full of in denitrating tower by the first atomizing sprinkling system 3
1 upper sheaf space.First remove most particulate matters through the pending gas containing the smoke of gunpowder that body of heater is discharged through sack cleaner, then through de-
Nitre tower air inlet 11 enters denitrating tower 1.Flue gas is continued up in denitrating tower 1 and is contacted with the denitration liquid of vaporific gas, opens
Begin to carry out denitration reaction, the flue gas that denitration finishes flows through denitrating tower gas outlet 12 and enters wet desulphurization absorption tower 7.Vaporific gas
Denitration liquid is gradually enriched with denitrating tower 1 bottom due to action of gravity, and first circulation pump 4 extracts the denitration liquid weight of denitrating tower 1 bottom
Newly it is delivered to the first atomizing sprinkling system 3 to be atomized again, and continues to contact generation denitration reaction with subsequently pending flue gas,
Denitration liquid shuttling movement between denitrating tower 1, first circulation pump 4 and the first atomizing sprinkling system 3, and then constitute complete circulation
Denitrating system.Flue gas after denitration enters inside wet desulphurization absorption tower 7 through wet desulphurization absorption tower air inlet 71, wet desulphurization
(described absorbing liquid can be any one absorbing liquid in the Wet Flue Gas Desulfurization Technique of this area to absorption tower 7 bottom preset absorbing liquid, its tool
Body group skilled artisan can easily obtain, and here is omitted), similar with the operation principle of circulation denitration system,
Second circulation pump 10 extracts the absorbing liquid of wet desulphurization absorption tower 7 bottom and is transported to the second atomizing sprinkling system 8 and carries out
Atomization, the absorbing liquid after atomization and smoke contacts carry out desulphurization reaction, and absorb produced by denitration liquid oxidation readily soluble simultaneously
High-valence state nitrogen oxides in water.Absorbing liquid after atomization can gradually drop back into wet desulphurization absorption tower 7 bottom with action of gravity
Extracted by second circulation pump 10 again and complete to circulate.Flue gas after desulphurization denitration is passed through the second Flat defroster 9 demisting on continuing
After dehumidifying, discharge from landing chimney 20 through wet desulphurization absorption tower gas outlet 72, complete denitration desulfurizing and purifying and process.
Embodiment 2：
The present embodiment provides a kind of compound dioxygen oxidation and denitration device, including denitrating tower 1, the first atomizing sprinkling system 3, the
One circulating pump 4, dosing pump 5 and denitrfying agent solution reservoir 6；The lower sidewall of described denitrating tower 1 is provided with denitrating tower air inlet 11,
The top of described denitrating tower 1 is provided with denitrating tower gas outlet 12；Described first atomizing sprinkling system 3 is located in described denitrating tower 1
Portion, and be located between described denitrating tower air inlet 11 and described denitrating tower gas outlet 12；The inlet of described first circulation pump 4 with
The bottom connection of described denitrating tower 1, the liquid outlet of described first circulation pump 4 passes through connecting tube and described first atomizing sprinkling system
3 connections；The liquid outlet of described dosing pump 5 is connected with the input duct of described first circulation pump 4, the inlet of described dosing pump 5
Connect with described denitrfying agent solution reservoir 6.It is additionally provided with cyclone 2, described cyclone 2 is located at described inside described denitrating tower 1
Between denitrating tower air inlet 11 and described first atomizing sprinkling system 3.
The compound dioxygen oxidation and denitration device of the present embodiment also includes the second atomizing sprinkling system 8, second circulation pump 10, collection
Liquid bath 40 and the outer slurry tank 50 of tower；Described second atomizing sprinkling system 8 is located inside described denitrating tower 1, and is located at described first
Between atomizing sprinkling system 3 and described denitrating tower gas outlet 12；Described collecting tank 40 is located inside described denitrating tower 1, and is located at
Between described second atomizing sprinkling system 8 and described first atomizing sprinkling system 3, and it is located at described second atomizing sprinkling system 8
Underface；The bottom of described collecting tank 40 slurry tank 50 outer with described tower connects；The inlet of described second circulation pump 10 with
The bottom connection of the outer slurry tank 50 of described tower, the liquid outlet of described second circulation pump 10 is with described second atomizing sprinkling system 8 even
Logical.
It is additionally provided with the guide ring 30 in collecting tank described in guiding fluid 40 on the medial wall of described denitrating tower 1, described
Guide ring 30 is located between described second atomizing sprinkling system 8 and described collecting tank 40.The upper surface of described guide ring 30 and under
Surface all tilts from outside to inside gradually downward.It is additionally provided with the second Flat defroster 9 inside described denitrating tower 1, described second
Flat defroster 9 is located between described second atomizing sprinkling system 8 and described denitrating tower gas outlet 12.Described denitrating tower is given vent to anger
It is provided with direct exhaust chimney 21 at mouth 12.
The compound dioxygen oxidation and denitration device of the present embodiment also includes sack cleaner, the gas outlet of described sack cleaner
Connect with described denitrating tower air inlet 11.Obvious, under the technology of the present invention is enlightened, sack cleaner can also be substituted for it
Its any one cleaner unit, these belong to the direct replacement of equivalent feature, are encompassed by within the scope of the present invention.
When the compound dioxygen oxidation and denitration device of the present embodiment 2 is specifically used：
Deployed denitration liquid in denitrfying agent solution reservoir 6 in advance, then starts dosing pump 5, and denitration liquid is along through metering
Pump 5, first circulation pump 4 enter the first atomizing sprinkling system 3, and denitration liquid is atomized the gas that nebulizes by the first atomizing sprinkling system 3
It is full of the upper sheaf space in denitrating tower 1.First remove most through the pending gas containing the smoke of gunpowder that body of heater is discharged through sack cleaner
Grain thing, then enters denitrating tower 1 through denitrating tower air inlet 11.Flue gas continues up and vaporific gas in denitrating tower 1
Denitration liquid contacts, and proceeds by denitration reaction, the denitration liquid of vaporific gas is because action of gravity is gradually in denitrating tower 1 bottom richness
Collection, it is delivered to the first atomizing sprinkling system 3 and is atomized again by the denitration liquid of first circulation pump 4 extraction denitrating tower 1 bottom again,
And continue to contact generation denitration reaction with subsequently pending flue gas, denitration liquid is in denitrating tower 1, first circulation pump 4 and the first atomization
Shuttling movement between spray system 3, and then constitute complete circulation denitration system.
Default absorbing liquid in the outer slurry tank 50 of tower, second circulation pump 10 extract absorbing liquid in the outer slurry tank 50 of tower and by defeated
Deliver to the second atomizing sprinkling system 8 and carry out the atomization vaporific absorbing liquid of formation, vaporific absorbing liquid can gradually fall with action of gravity
And the water conservancy diversion through guide ring 30 enters inside collecting tank 40, the absorbing liquid within collecting tank 40 flows back to again through collecting tank 40 bottom
The outer slurry tank 50 of tower, absorbing liquid flows through the outer slurry tank 50 of tower, second circulation pump 10, the second atomizing sprinkling system 8 and liquid collecting successively
Groove 40 flows back to the outer slurry tank 50 of tower again, constitutes a complete circulation desulfurization system.The flue gas that denitration finishes continues up, with mist
There is the absorbing reaction of desulphurization reaction and high-valence state nitrogen oxides in the contact of shape absorbing liquid.Flue gas after desulphurization denitration continues up
After the dehumidifying of the second Flat defroster 9 demisting, discharged by the direct exhaust chimney 21 of setting at denitrating tower gas outlet 12, complete
Denitration desulfurizing and purifying is processed.
Test example：
For contrast compound dioxygen oxidation and denitration device of the present utility model and existing low temperature denitrating flue gas treatment technology
Pluses and minuses consider.This utility model has also been carried out this utility model technology and has been taken off with plasma technology, ozone denitration technology, hydrogen peroxide
Nitre technology, in the contrast test of denitration efficiency, capital construction Meteorological, operating cost and reliability several respects.In order to keep contrasting
The objectivity of result, in process of the test, outer except denitration process technology difference itself, keep other conditions completely the same (for example
Process with a batch of containing pending flue gas of nitre etc.), final Experimental Comparison result is listed in the table below 1.
Table 1
Analysis result of the test and table 1 understand：First, compound dioxygen oxidation and denitration technology of the present utility model is imitated in denitration
Rate aspect makes significant progress compared to hydrogen peroxide denitration technology.Secondly, compound dioxygen oxidation and denitration of the present utility model
The early stage capital construction Meteorological of technology is medium, less than plasma denitration technology and ozone denitration technology.3rd, of the present utility model
The operating cost of compound dioxygen oxidation and denitration technology is far below three kinds of prior arts.4th, compound dioxygen oxygen of the present utility model
Change denitration technology and be also significantly better than three kinds of prior arts in terms of reliability.Comprehensive Assessment, compound dioxygen oxygen of the present utility model
Change denitrification apparatus and be better than prior art in nitre efficiency, cost and reliability several respects, be a kind of to be suitable to the excellent of popularization and application
Good technology.
This utility model is not limited to above-mentioned preferred forms, and anyone can draw under enlightenment of the present utility model
Other various forms of products, however, making any change in its shape or structure, every have same as the present application or phase
Approximate technical scheme, all falls within protection domain of the present utility model.
Claims (10)
1. be combined dioxygen oxidation and denitration device it is characterised in that：Including denitrating tower (1), the first atomizing sprinkling system (3), first
Circulating pump (4), dosing pump (5) and denitrfying agent solution reservoir (6)；The lower sidewall of described denitrating tower (1) is provided with denitrating tower and enters
QI KOU (11), the top of described denitrating tower (1) is provided with denitrating tower gas outlet (12)；Described first atomizing sprinkling system (3) position
Internal in described denitrating tower (1), and be located between described denitrating tower air inlet (11) and described denitrating tower gas outlet (12)；Described
The inlet of first circulation pump (4) is connected with the bottom of described denitrating tower (1), and the liquid outlet of described first circulation pump (4) passes through
Connecting tube is connected with described first atomizing sprinkling system (3)；The liquid outlet of described dosing pump (5) and described first circulation pump (4)
Input duct connection, the inlet of described dosing pump (5) connected with described denitrfying agent solution reservoir (6).
2. compound dioxygen oxidation and denitration device according to claim 1 it is characterised in that：Inside described denitrating tower (1) also
It is provided with cyclone (2), described cyclone (2) is located at described denitrating tower air inlet (11) and described first atomizing sprinkling system
(3) between.
3. compound dioxygen oxidation and denitration device according to claim 1 and 2 it is characterised in that：Also include first flat
Demister (60), wet desulphurization absorption tower (7), the second atomizing sprinkling system (8) and second circulation pump (10)；Described first flat board
Formula demister (60) is located at described denitrating tower (1) inside, and goes out positioned at described first atomizing sprinkling system (3) and described denitrating tower
Between QI KOU (12)；The lower sidewall of described wet desulphurization absorption tower (7) is provided with wet desulphurization absorption tower air inlet (71), institute
The top stating wet desulphurization absorption tower (7) is provided with wet desulphurization absorption tower gas outlet (72), and described wet desulphurization absorption tower enters
QI KOU (71) is connected with described denitrating tower gas outlet (12)；Described second atomizing sprinkling system (8) is located at described wet desulphurization and inhales
Receive tower (7) internal, and be located at described wet desulphurization absorption tower air inlet (71) and described wet desulphurization absorption tower gas outlet (72)
Between；The inlet of described second circulation pump (10) is connected with the bottom of described wet desulphurization absorption tower (7), described second circulation
The liquid outlet of pump (10) is connected with described second atomizing sprinkling system (8).
4. compound dioxygen oxidation and denitration device according to claim 3 it is characterised in that：Also include the second flat demisting
Device (9) and land chimney (20)；Described second Flat defroster (9) is located at described wet desulphurization absorption tower (7) inside, and position
Between described second atomizing sprinkling system (8) and described wet desulphurization absorption tower gas outlet (72)；Described land chimney (20)
It is connected with described wet desulphurization absorption tower gas outlet (72).
5. compound dioxygen oxidation and denitration device according to claim 1 and 2 it is characterised in that：Also include the second atomization spray
The outer slurry tank (50) of pouring system (8), second circulation pump (10), collecting tank (40) and tower；Described second atomizing sprinkling system (8) position
Internal in described denitrating tower (1), and be located between described first atomizing sprinkling system (3) and described denitrating tower gas outlet (12)；
Described collecting tank (40) is located at described denitrating tower (1) inside, and is located at described second atomizing sprinkling system (8) and described first mist
Change between spray system (3), and be located at the underface of described second atomizing sprinkling system (8)；The bottom of described collecting tank (40)
Slurry tank (50) outer with described tower connects；The inlet of described second circulation pump (10) and the bottom of the outer slurry tank (50) of described tower
Connection, the liquid outlet of described second circulation pump (10) is connected with described second atomizing sprinkling system (8).
6. compound dioxygen oxidation and denitration device according to claim 5 it is characterised in that：The inner side of described denitrating tower (1)
It is additionally provided with the guide ring (30) in collecting tank described in guiding fluid (40) on wall, described guide ring (30) is located at described second
Between atomizing sprinkling system (8) and described collecting tank (40).
7. compound dioxygen oxidation and denitration device according to claim 6 it is characterised in that：The upper table of described guide ring (30)
Face and lower surface all tilt from outside to inside gradually downward.
8. compound dioxygen oxidation and denitration device according to claim 5 it is characterised in that：Inside described denitrating tower (1) also
It is provided with the second Flat defroster (9), described second Flat defroster (9) is located at described second atomizing sprinkling system (8)
And described denitrating tower gas outlet (12) between.
9. compound dioxygen oxidation and denitration device according to claim 5 it is characterised in that：Described denitrating tower gas outlet (12)
Place is provided with direct exhaust chimney (21).
10. compound dioxygen oxidation and denitration device according to claim 1 it is characterised in that：Also include dust arrester, described
The gas outlet of dust arrester is connected with described denitrating tower air inlet (11).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201620994615.5U CN205995262U (en) | 2016-08-30 | 2016-08-30 | Compound dioxygen oxidation and denitration device |
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| CN201620994615.5U CN205995262U (en) | 2016-08-30 | 2016-08-30 | Compound dioxygen oxidation and denitration device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106178899A (en) * | 2016-08-30 | 2016-12-07 | 山东格润内泽姆环保科技有限公司 | Compound dioxygen oxidation and denitration process and device |
| CN107051168A (en) * | 2017-06-14 | 2017-08-18 | 中冶京诚工程技术有限公司 | The integrated apparatus and method of a kind of flue gas low-temperature denitration |
| CN107243243A (en) * | 2017-05-31 | 2017-10-13 | 安徽国祯生态科技股份有限公司 | A kind of oxidation and denitration device and its method of denitration |
-
2016
- 2016-08-30 CN CN201620994615.5U patent/CN205995262U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106178899A (en) * | 2016-08-30 | 2016-12-07 | 山东格润内泽姆环保科技有限公司 | Compound dioxygen oxidation and denitration process and device |
| CN107243243A (en) * | 2017-05-31 | 2017-10-13 | 安徽国祯生态科技股份有限公司 | A kind of oxidation and denitration device and its method of denitration |
| CN107051168A (en) * | 2017-06-14 | 2017-08-18 | 中冶京诚工程技术有限公司 | The integrated apparatus and method of a kind of flue gas low-temperature denitration |
| CN107051168B (en) * | 2017-06-14 | 2023-10-13 | 中冶京诚工程技术有限公司 | Integrated device and method for low-temperature denitration of flue gas |
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