CN105148701A - Gas phase oxidization system, flue gas purification equipment using system and purification method thereof - Google Patents
Gas phase oxidization system, flue gas purification equipment using system and purification method thereof Download PDFInfo
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- CN105148701A CN105148701A CN201510552252.XA CN201510552252A CN105148701A CN 105148701 A CN105148701 A CN 105148701A CN 201510552252 A CN201510552252 A CN 201510552252A CN 105148701 A CN105148701 A CN 105148701A
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Abstract
The invention relates to a gas phase oxidization system, flue gas purification equipment using the system and a purification method thereof. The gas phase oxidization system comprises an oxidization system and a partition system; the flue gas purification equipment comprises a cylindrical absorption tower body, a gas inlet cylinder located at the lower portion of the absorption tower body, a gas exhaust cylinder located at the upper portion of the absorption tower body, an absorbent pond and an absorption system arranged in the absorption tower body and an out-of-tower buffer tank connected with the absorption tower body, and further comprises the gas phase oxidation system; the flue gas purification equipment is sequentially provided with the absorbent pond, the gas phase oxidization system and an upper absorption system from bottom to top along a flue gas flow direction. Flue gas enters the absorbent pond through the gas inlet cylinder, passes through an agitator and a lower absorption system, enters the gas phase oxidization system, is subjected to a full oxidization reaction with ozone gas, passes through the upper absorption system and is exhausted into the atmosphere through the gas exhaust cylinder. The equipment and the method provided by the invention are simple and easy to operate, can effectively realize the oxidization of NOX and the recovery of nitrogen resources, and can be widely applied to flue gas or waste gas purification treatment.
Description
Technical field
The present invention relates to a kind of flue gas purifying equipment and purification method.
Background technology
Nitrogen oxide (NO
x) discharge drastically influence natural environment.The industrial waste gases such as power plant, cement, metallurgy, iron and steel all need through cleaning procedure process, reduce the concentration of emission of pollutant.Along with process of industrialization is progressively deepened, discharge amount of exhaust gas and the total amount of pollutant progressively rise.Because total amount goes up, the concentration of emission of pollutant controls strict gradually.
NO
xremove the mode adopting selective reduction more, with/without under catalysts conditions, utilize NH
3reproducibility, by NO
xbe reduced to N
2be disposed to environment.There is limitation in this mode: first catalyst has the life-span, needs periodic replacement, and do not use the NO of catalyst
xreduction needs to carry out at very high temperature temperature; Moreover, by NO
xbe reduced to N
2be only pollution abatement thing, contamination transform can not be utilized.Utilize the mode of oxidizing and denitrating ozone can avoid above-mentioned limitation: first: ozone oxidation NO
xto N
2o
5can carry out at a lower temperature, and without any need for catalytic condition; Moreover, NO
xthe high price nitrogen-containing compound that contamination transform becomes can utilize again.
Due to ozone and NO
xsolubility in the general aqueous solution is limited, and at identical temperature, ozone is at gaseous oxidation NO
xthere is reaction rate faster.The Wet technique of-Belco company of Du Pont sprays ozone in gas pipeline before waste gas enters absorption tower, before ozone injection apparatus, uses quenching apparatus that EGT is cooled to lower temperature, to ensure that the ozone sprayed does not reduce the life-span because of hot environment.There is some problems in this technology: quenching apparatus sprays into cooling water before ozone oxidation, the cooling water drop carried in waste gas can promote the decomposition of ozone to a certain extent; Meanwhile, ozone sprays into pipeline does not have extra gas and vapor permeation to promote device, ozone oxidation NO
xlimited efficacy.
In ozone gas phase oxidation technology, the efficiency of factor to oxidation reaction such as the control of gas phase particle/droplet content, the condition of reactant mixing and mode are very important.
Summary of the invention
The object of this invention is to provide a kind of gaseous oxidation system, the flue gas purifying equipment applying this system and purification method thereof, can realize being oxidized the NO in flue gas efficiently
x, do not need the annex such as deflection plate, quenching apparatus, flue gas resistance is little.
For achieving the above object, the present invention adopts following technical scheme:
A kind of gaseous oxidation system, comprises oxidative system and separating system:
Described oxidative system comprises ozone transfer pipeline, be connected to the first injector of every root ozone transfer pipeline end and second injector and the ozone baffle plate below first injector, described first injector and second injector are oppositely arranged, wherein first injector is positioned at below, its port spraying ozone gas is downward, and wherein second injector is positioned at top, it sprays the port of ozone gas upwards.
Described separating system comprises the gravity line be positioned at through oxidative system on housing axis, is connected to the catch tray of the back taper tubular of gravity line upper end and is positioned at the deflection cone of the annular above catch tray, and the lower surface of described catch tray is positioned at the top that second injector sprays the port of ozone gas.
Described deflection cone is annular, its upper surface is acclivitous domatic to inner periphery by the lower limb of periphery by periphery top edge to domatic, its lower surface that inner periphery is downward-sloping, and the inner periphery of described deflection cone exceeds the edge of catch tray, is positioned at above the dish mouth of catch tray.
Described ozone transfer pipeline and be connected to the first injector of every root ozone transfer pipeline end and second injector has 1 ~ 8 group, hoop uniform intervals is connected to the inner side of housing, the corresponding one piece of ozone baffle plate in the below of each first injector, wherein first injector and second injector spray the port of ozone gas and the angle of vertical direction is all no more than 45 °.
Described gravity line by the center organizing ozone transfer pipeline through oxidative system more, and the shape of described ozone baffle plate is one or more in fan-shaped, circular, oval, triangle, quadrangle, convex or concave shape.
A kind of flue gas purifying equipment applying described gaseous oxidation system, the absorption tower tower body comprising tubular, the air induction mast being positioned at tower body bottom, absorption tower, the aiutage being positioned at tower body top, absorption tower, the absorbent pond and the absorption system that are arranged on absorption tower tower body and the outer baffle-box of tower be connected with absorption tower tower body, also comprise gaseous oxidation system, described flue gas purifying equipment is followed successively by absorbent pond, gaseous oxidation system and top absorption system from bottom to top along flue gas flow direction, and the intrasystem gravity line of described gaseous oxidation is communicated with by the outer baffle-box of pipeline and tower.
Described absorbent pond is communicated with air or oxygen air inlet pipeline and Sulphur ressource reclaim line, and absorbent pond is communicated with air or oxygen air inlet pipeline and has agitator in absorbent pond.
Described top absorption system comprises top spraying layer and is positioned at the top demister above the spraying layer of top, and described top spraying layer is passed through circulating feeding liquid bypass and is communicated with absorbent pond, is communicated with by pipeline and the outer baffle-box of tower.
Also be provided with lower absorbent system in the below of described gaseous oxidation system, described lower absorbent system comprises bottom spraying layer and is positioned at the bottom demister above the spraying layer of bottom, and described bottom spraying layer is communicated with absorbent pond by circulating feeding liquid bypass.
The outer baffle-box of described tower and nitrogen resource reclaim pipeline connection, agitator is arranged at the bottom of the outer baffle-box of tower.
A kind of purification method applying described flue gas purifying equipment, flue gas enters in absorbent pond through air induction mast, enter in gaseous oxidation system through agitator, bottom spraying layer and bottom demister, through with the fully oxidized reaction of ozone gas after be disposed in air through discharge drum through top spraying layer and top demister again.
First injector in oxidative system sprays ozone to the diffusion of ozone baffle plate, first carries out mixed once and oxidation reaction with flue gas, sprays ozone subsequently spread to catch tray lower surface by second injector, then carries out secondary with flue gas and mix and oxidation reaction;
The absorbent that top spraying layer sprays by catch tray reclaims and is disposed to diverse location through gravity line: when top absorption system and lower absorbent system use absorbent of the same race, gravity line by the liquid collected discharged to the outer baffle-box of absorbent pond or tower, when top absorption system and lower absorbent system use different absorbents, gravity line by the liquid collected discharged to the outer baffle-box of tower.
Compared with prior art the present invention has following characteristics and beneficial effect:
Instant invention overcomes conventional purification apparatus complex structure, clean-up effect difference and nitrogen resource effectively can not be separated the shortcoming of recycling, solve and realize NO
xoxidation, effectively reclaim the technical problem of nitrogen resource.
The invention provides a kind of gaseous oxidation system, wherein ozone baffle plate and catch tray lower surface serve the effect promoting that ozone mixes with flue gas, catch tray, deflection cone play the effect of the content reducing oxidation reaction region endoparticle thing and liquid, and the cleaning equipment applying this gaseous oxidation system comprises absorbent pond, lower absorbent system, gaseous oxidation system, top absorption system and exhaust system from bottom to top successively:
(1) absorbent pond: comprise agitator and smoke inlet pipe road, agitator can install multiple stage at different angles, differing heights, air inlet pipeline can be multiple along tower cross section annular different angles distributing installation, and the absorbent in absorption cell pumps into top spraying layer and bottom spraying layer by solution feed pump through circulating feeding liquid bypass.
(2) lower absorbent system: comprise bottom spraying layer, bottom demister, bottom spraying layer sprays absorbent, and bottom demister is for reducing the droplet in flue gas, droplet content, and object reduces ozone decomposed speed to affect by the speedup of droplet, drop; Meanwhile, when uptake zone, top absorbent used is different from lower absorbent district absorbent used, mixing between the two can effectively be reduced.
(3) oxidative system: comprise first injector, second injector, ozone baffle plate and ozone transfer pipeline, first injector by ozone transfer pipeline Jet with downward flow direction to ozone baffle plate, second injector is upwards injected into separating system catch tray lower surface by ozone transfer pipeline, ozone spreads from ozone baffle plate and catch tray lower surface respectively, mix with flue gas and contact, carry out oxidation reaction in gas phase.
(4) separating system: comprise catch tray, gravity line and deflection cone, the absorbent that catch tray sprays for collecting top spraying layer, collector tray bottom connects gravity line, and catch tray lower surface is as second injector gas gas contact surface; When uptake zone, top and lower absorbent district use absorbent of the same race, gravity line can by the liquid of collection discharged to absorbent pond or the outer baffle-box of tower, and when uptake zone, top and lower absorbent agent use different absorbents, gravity line will collect liquid discharged to the outer baffle-box of tower; Deflection cone upper surface is used for the guiding fluid catch tray that will collect, and lower surface is used for flue gas speed-raising, promotes the Homogeneous phase mixing of the ozone that second injector sprays and flue gas.
(5) top absorption system: comprise top spraying layer, top arranges top demister, and top spraying layer sprays absorbent, and top demister is for reducing the droplet in flue gas, droplet content, and object reduces the discharge of the solid particulate matter carried in droplet.
(6) exhaust emissions: the flue gas after purification is disposed to air through discharge drum.
Gas phase oxidation in the present invention mainly comprises following reaction:
（1）
；
（2）
；
（3）
；
（4）
；
（5）
；
（6）
；
Wherein, reaction (1), (2), (3) are fast response, and (4), (5), (6) are long response time.In zoneofoxidation, flue-gas temperature scope is not higher than 100 DEG C, reaction rate 7 ~ 10 orders of magnitude faster than the reaction rate of rear three long response times of first three fast response.Therefore, generally, rear three long response times can be ignored, but long response time also can produce in zoneofoxidation.Except oxidation reaction, in zoneofoxidation, also there is the decomposition reaction of following ozone simultaneously:
（1）
；
（2）
；
（3）
；
（4）
；
（5）
；
Ozonolysis reactions comprises: in decomposition reaction (1), (2) of gas phase generation, in the decomposition reaction (3) that surface particles occurs, in decomposition reaction (4), (5) of liquid phase generation.Flue-gas temperature scope in tower is not higher than 100 DEG C, and decomposition reaction 5 ~ 7 orders of magnitude slow in above-mentioned oxidizing reaction rate of gas phase ozone self, the decomposition of ozone self does not affect oxidation efficiency substantially.But, surface particles and drop surface or be dissolved in drop, the decomposition rate of ozone can increase greatly, and reaction rate is than the oxidation efficiency that can have influence on oxidation reaction.Therefore, need to arrange bottom demister above the spraying layer of bottom, reduce the quantity that flue gas carries drop or particle, also need to arrange separating system on oxidative system upper strata, the absorbent preventing top spraying layer from spraying affects the oxidation reaction of carrying out in oxidative system.
The present invention oxidative system with above separating system is set, and separating system role is not limited only to separate upper strata absorbent and lower floor's absorbent, also for separating mixing of upper strata absorbent and flue gas in oxidative system and ozone: ozone has unstability, in the situation of being heated, the decomposition that is attracted to surface particles, all can causes ozone when entering in drop, the oxidation NO of its catabolite oxygen
xspeed significantly lower than ozone oxidation speed.
Secondly, Forced Mixing device is set at oxidative system ozone and flue gas: the reaction rate of ozone oxidation is very fast, when ideal mixes, can complete oxidation reaction within 0.2s, but, only ozone is sprayed into tower body by playpipe and mixes with flue gas and be difficult to reach desirable mixed effect; Therefore, by catch tray lower surface and ozone baffle plate, ozone diffusingsurface is expanded, makes flue gas can be more abundant with mixing of ozone.Meanwhile, the material of catch tray lower surface and ozone baffle plate needs to select the material of not easily having an effect with ozone to make.The drop that flue gas can not be carried due to bottom demister or the complete Ex-all of particle, simultaneously owing to there is the phenomenons such as fluid spills, catch tray also cannot the absorbent of top spraying layer and oxidative system completely isolated.Therefore, in oxidative system, always there is a certain amount of drop or particle concentration, thus cause ozone accelerated decomposition, affect oxidation effectiveness.Therefore, after the injection of one-level ozone injector, mixing, secondary ozone injector is set and sprays ozone, mix with flue gas.Ensure the NO in flue gas
xefficient Conversion is N
2o
5.Deflection cone lower surface causes flue gas speed-raising to rise, and this link can make ozone more abundant with mixing of flue gas, thus promotes that gas phase oxidation carries out.
In addition, selective oxidation NO
xoptimal oxygen agent: due under equilibrium partial pressure, ozone and NO
xsolubility in absorbent is all very little.NO
xbe the oxide mainly existed in the gas phase, and ozone is the oxidant mainly existed in the gas phase, and ozone oxidation NO
xspeed very fast, therefore select ozone as NO
xoxidant.
Finally, for NO
x, current nitric acid is take air as raw material by oxidation of nitrogen for NO is oxidized nitric acid processed, more further by NO
xit is NO and by NO that recycling can be saved oxidation of nitrogen
xbe reduced to the energy of useless nitrogen.
To sum up chatting, equipment of the present invention and purification method simply easily operate, can realize NO efficiently
xoxidation and the recovery of nitrogen resource, flue gas or waste gas purification process can be widely used in.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention will be further described in detail.
Fig. 1 is gaseous oxidation system architecture schematic diagram of the present invention.
Fig. 2 is flue gas purifying equipment structural representation of the present invention.
Fig. 3 is the ozone baffle arrangement schematic diagram of the embodiment of the present invention one.
Fig. 4 is the ozone baffle arrangement schematic diagram of the embodiment of the present invention two.
Fig. 5 is the ozone baffle arrangement schematic diagram of the embodiment of the present invention three.
Fig. 6 is the ozone baffle arrangement schematic diagram of the embodiment of the present invention four.
Fig. 7 is the ozone baffle arrangement schematic diagram of the embodiment of the present invention five.
Fig. 8 is the ozone baffle arrangement schematic diagram of the embodiment of the present invention six.
Fig. 9 is without ozone in deflection cone situation and flue gas mixability schematic diagram.
Figure 10 has ozone and flue gas mixability schematic diagram in deflection cone situation.
Figure 11 only has ozone and flue gas mixability schematic diagram in first injector situation.
Figure 12 is that first injector and second injector exist ozone and flue gas mixability schematic diagram in situation simultaneously.
Ozone and flue gas mixability schematic diagram when when Figure 13 is ozone free baffle plate, ozone upwards sprays.
Ozone and flue gas mixability schematic diagram during ozone Jet with downward flow direction when Figure 14 is ozone free baffle plate.
Reference numeral: 1-absorption tower tower body, 2-top spraying layer, 3-deflection cone, 4-catch tray, 5-second injector, 6-first injector, 7-ozone baffle plate, 8-bottom spraying layer, 9-agitator, 10-smoke inlet pipe road, the bypass of 11-circulating feeding liquid, 12-ozone transfer pipeline, 13-Sulphur ressource reclaim line, the outer baffle-box of 14-tower, 15-nitrogen resource reclaim pipeline, 16-top demister, 17-bottom demister, 18-gravity line, 19-discharge drum, 20-air induction mast.
Detailed description of the invention
The present invention can apply and gas cleaning process, also can apply and waste gas purification process, as long as this cleaning equipment can be used to carry out purified treatment containing low order nitrogen element, for purifying smoke in embodiment, embodiment is shown in Figure 1, this gaseous oxidation system, comprise housing and the oxidative system and the separating system that are positioned at housing: described oxidative system comprises ozone transfer pipeline 12, be connected to the first injector 6 of every root ozone transfer pipeline 12 end and second injector 5 and the ozone baffle plate 7 below first injector 6, described first injector 6 and second injector 5 are oppositely arranged, wherein first injector 6 is positioned at below, its port spraying ozone gas is downward, wherein second injector 5 is positioned at top, it sprays the port of ozone gas upwards, described separating system comprises the gravity line 18 be positioned at through oxidative system on housing axis, is connected to the catch tray 4 of the back taper tubular of gravity line 18 upper end and is positioned at the deflection cone 3 of the annular above catch tray, and the lower surface of described catch tray 4 is just spraying the port of ozone gas to second injector 5.
Described deflection cone 3 is annular, its upper surface is acclivitous domatic to inner periphery by the lower limb of periphery by periphery top edge to domatic, its lower surface that inner periphery is downward-sloping, and the inner periphery of described deflection cone 3 exceeds the edge of catch tray 4, is positioned at above the dish mouth of catch tray 4.
Described ozone transfer pipeline 12 and be connected to the first injector 6 of every root ozone transfer pipeline 12 end and second injector 5 has 1 ~ 8 group, hoop uniform intervals is connected to the inner side of housing, the corresponding one piece of ozone baffle plate 7 in the below of each first injector 6, wherein the angle of first injector 6 and second injector 5 port and vertical direction that spray ozone gas is all no more than 45 °.
Described gravity line 18 by organizing the center of ozone transfer pipeline 12 through oxidative system more, the shape of described ozone baffle plate 7 is one or more in fan-shaped, circular, oval, triangle, quadrangle, convex or concave shape, see shown in Fig. 3 to Fig. 8, for four groups of ozone transfer pipelines 12, first injector 6 and second injector 5, ozone baffle plate 7 also has four, symmetrical centered by tower body axis, absorption tower, the embodiment of six kinds of ozone baffle shapes is provided, in order to adapt to different flue gas flow rate, NO in figure
xconcentration or regulate different oxidation products.
Described gaseous oxidation system can be applied with multiple flue gas purifying equipment, different objects such as denitrating flue gas can be realized, flue gas desulfurization, flue gas desulfurization and denitrification etc., shown in Figure 2, to realize flue gas desulfurization and denitrification, flue gas purifying equipment described in this application, comprise the absorption tower tower body 1 of tubular, the outer baffle-box 14 of tower being arranged on absorbent pond in absorption tower tower body 1 and absorption system and being connected with absorption tower tower body 1, also comprise gaseous oxidation system, described flue gas purifying equipment is followed successively by absorbent pond from bottom to top along flue gas flow direction, lower absorbent system, gaseous oxidation system and top absorption system, the intrasystem gravity line 18 of described gaseous oxidation is communicated with by the outer baffle-box 14 of pipeline and tower, described deflection cone 3 hoop is fixed on the inwall of absorption tower tower body 1, its upper surface by the one end be connected with absorption tower tower body 1 inwall to catch tray 4 tilt and exceed the edge of catch tray 4, lower surface is tilted by the inwall of the one end being positioned at catch tray 4 to absorption tower tower body 1, the longitudinal section of deflection cone is the triangle be made up of top surface edge, lower surface edge and absorbing tower body sidewall edge three, or the deflection cone 3 that the outstanding formation band wedge angle that the inwall of absorption tower tower body 1 can be bent inwards is domatic.
Described absorbent pond is communicated with air or oxygen air inlet pipeline 10 and Sulphur ressource reclaim line 13, has agitator 9 in absorbent pond.
The bottom demister 17 that described lower absorbent system comprises bottom spraying layer 8 and is positioned at above bottom spraying layer 8, described bottom spraying layer 8 is communicated with absorbent pond by circulating feeding liquid bypass 11.
Described top absorption system comprises top spraying layer 2 and is positioned at the top demister 16 above top spraying layer 2, described top spraying layer 2 is communicated with absorbent pond by circulating feeding liquid bypass 11, by pipeline and tower outward baffle-box 14 be communicated with.
The outer baffle-box 14 of described tower is communicated with nitrogen resource reclaim pipeline 15, and agitator is arranged at the bottom of the outer baffle-box 14 of tower.
Shown in Figure 2, a kind of purification method applying described flue gas purifying equipment, the air induction mast 20 of flue gas containing nitrogen element sulphur at the bottom of absorbing tower enters in absorbent pond, enter in gaseous oxidation system through agitator 9, bottom spraying layer 8 and bottom demister 17, through with the fully oxidized reaction of ozone gas after be disposed in air through top spraying layer 2 and top demister 16 through discharge drum 19 again, wherein nitrogen element and element sulphur direction as shown in figure upward arrow is separated through respective pipeline respectively.
Wherein ozone gas spreads through the stop of the lower surface of ozone baffle plate 7 and catch tray 4 after first injector 6 and second injector 5 spray, and fully mixes with flue gas to contact, carry out oxidation reaction.
The absorbent that top spraying layer 2 sprays by catch tray 4 reclaims and is disposed to diverse location through gravity line 18: when top absorption system and lower absorbent system use absorbent of the same race, gravity line by the liquid collected discharged to the outer baffle-box 14 of absorbent pond or tower, when top absorption system and lower absorbent system use different absorbents, gravity line by the liquid collected discharged to the outer baffle-box 14 of tower; Here the absorbent mentioned can be ethylene glycol-water/lime stone mixed liquor, ethylene glycol-water/NaOH mixed liquor, ammoniacal liquor or calcium hydroxide/water mixed liquid.
In purification process of the present invention, ozone baffle plate, catch tray lower surface, deflection cone, first injector and second injector are at zoneofoxidation ozone oxidation NO
xeffect aspect serve key effect.
(1) catch tray lower surface and deflection cone are to the facilitation effect of ozone and flue gas mixed effect: shown in Figure 9, and when not having catch tray, mixed process does not exist the facilitation of catch tray lower surface to ozone and flue gas, the situation that both software simulations mix.When not having catch tray lower surface to raise speed to flue gas, the mixability unevenness of ozone and flue gas is up to 70%; Shown in Figure 10, when there being catch tray lower surface to raise speed to flue gas/exhaust gas, the mixability unevenness of ozone and flue gas/exhaust gas is no more than 20%.
(2) first injector and second injector are to the facilitation effect of ozone and flue gas mixed effect: shown in Figure 11, first injector is only had to deposit in case, when not considering ozone decomposed, the mixability unevenness of ozone and flue gas/exhaust gas is about 15 ~ 20%; Consider ozone decomposed, the unevenness of real gas mixing can be lower; Only have second injector to deposit in case, when not considering ozone decomposed, ozone is same about 15 ~ 20% with the mixability unevenness of flue gas/exhaust gas; Consider ozone decomposed, the unevenness of real gas mixing can be lower.But shown in Figure 12, through one-level ozone injector and the acting in conjunction of secondary ozone injector, the actual mixability unevenness of ozone and flue gas/exhaust gas can control within 5%, thus makes oxidation reaction efficiently complete, ensure NO
xremoval efficiency.
(3) ozone baffle plate is to the facilitation effect of ozone and flue gas mixed effect: when not having ozone baffle plate, no matter be that ozone upwards sprays, described in Figure 13, or ozone Jet with downward flow direction, shown in Figure 14, the mixability unevenness of ozone and flue gas/exhaust gas is between 50 ~ 60%, and after setting up ozone baffle plate, the mixability unevenness that first injector sprays ozone and flue gas/exhaust gas can control about 15% ~ 20%.
(4) ozone sprays the facilitation effect of orientation and flue gas mixed effect: because flue gas flow rate field is uneven along tower cross-sectional distribution in zoneofoxidation, thus the distance of ozone injector and absorption tower tower body and the spray angle of ozone injector can have an impact to mixed effect, therefore, the angle of first injector 6 and second injector 5 port and vertical direction that spray ozone gas is all no more than 45 ° to realize optimized effect.
Claims (10)
1. a gaseous oxidation system, is characterized in that: comprise oxidative system and separating system:
Described oxidative system comprises ozone transfer pipeline (12), be connected to the first injector (6) of every root ozone transfer pipeline (12) end and second injector (5) and the ozone baffle plate (7) in first injector (6) below, described first injector (6) and second injector (5) are oppositely arranged, wherein first injector (6) is positioned at below, its port spraying ozone gas is downward, and wherein second injector (5) is positioned at top, it sprays the port of ozone gas upwards;
Described separating system comprises the gravity line (18) be positioned at through oxidative system on housing axis, is connected to the catch tray (4) of the back taper tubular of gravity line (18) upper end and is positioned at the deflection cone (3) of the annular above catch tray, and the lower surface of described catch tray (4) is positioned at the top that second injector (5) sprays the port of ozone gas.
2. gaseous oxidation system according to claim 1, it is characterized in that: described deflection cone (3) is annular, its upper surface is acclivitous domatic to inner periphery by the lower limb of periphery by periphery top edge to domatic, its lower surface that inner periphery is downward-sloping, and the inner periphery of described deflection cone (3) exceeds the edge of catch tray (4), is positioned at above the dish mouth of catch tray (4).
3. gaseous oxidation system according to claim 1 and 2, it is characterized in that: described ozone transfer pipeline 12 and be connected to the first injector (6) of every root ozone transfer pipeline (12) end and second injector (5) has 1 ~ 8 group, hoop uniform intervals is connected to the inner side of housing, the corresponding one piece of ozone baffle plate (7) in the below of each first injector (6), wherein first injector (6) and second injector (5) the injection port of ozone gas and the angle of vertical direction are all no more than 45 °.
4. gaseous oxidation system according to claim 3, it is characterized in that: described gravity line (18) by the center organizing ozone transfer pipeline (12) through oxidative system more, and the shape of described ozone baffle plate (7) is one or more in fan-shaped, circular, oval, triangle, quadrangle, convex or concave shape.
5. the flue gas purifying equipment of the gaseous oxidation system of an application rights requirement described in 1 to 4 any one, comprise the absorption tower tower body (1) of tubular, be positioned at the air induction mast (20) of tower body bottom, absorption tower, be positioned at the aiutage (19) on tower body top, absorption tower, the outer baffle-box (14) of tower being arranged on absorbent pond in absorption tower tower body (1) and absorption system and being connected with absorption tower tower body (1), it is characterized in that: also comprise gaseous oxidation system, described flue gas purifying equipment is followed successively by absorbent pond from bottom to top along flue gas flow direction, gaseous oxidation system and top absorption system, the intrasystem gravity line of described gaseous oxidation (18) is communicated with by the outer baffle-box (14) of pipeline and tower.
6. flue gas purifying equipment according to claim 5, it is characterized in that: described absorbent pond is communicated with air or oxygen air inlet pipeline (10) and Sulphur ressource reclaim line (13), absorbent pond is communicated with air or oxygen air inlet pipeline (10) and has agitator (9) in absorbent pond.
7. flue gas purifying equipment according to claim 5, it is characterized in that: described top absorption system comprises top spraying layer (2) and is positioned at the top demister (16) of top spraying layer (2) top, described top spraying layer (2) is communicated with absorbent pond by circulating feeding liquid bypass (11), be communicated with by the outer baffle-box (14) of pipeline and tower.
8. flue gas purifying equipment according to claim 7, it is characterized in that: be also provided with lower absorbent system in the below of described gaseous oxidation system, described lower absorbent system comprises bottom spraying layer (8) and is positioned at the bottom demister (17) of bottom spraying layer (8) top, and described bottom spraying layer (8) is communicated with absorbent pond by circulating feeding liquid bypass (11).
9. flue gas purifying equipment according to claim 5, is characterized in that: the outer baffle-box (14) of described tower is communicated with nitrogen resource reclaim pipeline (15), and agitator is arranged at the bottom of the outer baffle-box (14) of tower.
10. the purification method of the flue gas purifying equipment of an application rights requirement described in 5 to 9 any one, it is characterized in that: flue gas enters in absorbent pond through air induction mast (20), enter in gaseous oxidation system through agitator (9), bottom spraying layer (8) and bottom demister (17), through with the fully oxidized reaction of ozone gas after be disposed in air through top spraying layer (2) and top demister (16) through discharge drum (19) again;
First injector (6) in oxidative system sprays ozone and spreads to ozone baffle plate, first carry out mixed once and oxidation reaction with flue gas, spray ozone by second injector (5) subsequently to spread to catch tray lower surface, then carry out secondary with flue gas and mix and oxidation reaction;
The absorbent that top spraying layer (2) sprays by catch tray (4) reclaims and is disposed to diverse location through gravity line (18): when top absorption system and lower absorbent system use absorbent of the same race, gravity line by the liquid collected discharged to the outer baffle-box (14) of absorbent pond or tower, when top absorption system and lower absorbent system use different absorbents, gravity line by the liquid collected discharged to the outer baffle-box (14) of tower.
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Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| CN111068410A (en) * | 2018-10-19 | 2020-04-28 | 航天环境工程有限公司 | Efficient purification device for wet smoke plume of direct-discharge chimney of wet desulfurization tower by calcium method and application |
| TWI699234B (en) * | 2019-11-21 | 2020-07-21 | 財團法人工業技術研究院 | Device for capturing particles |
| CN111514713A (en) * | 2020-03-26 | 2020-08-11 | 南京龙源环保有限公司 | Equipment and method for removing odor substances in flue gas |
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| CN106076089B (en) * | 2016-08-16 | 2018-10-02 | 苏州仕净环保科技股份有限公司 | A kind of desulphurization denitration vent gas treatment tower |
| CN106076089A (en) * | 2016-08-16 | 2016-11-09 | 攀枝花市九鼎智远知识产权运营有限公司 | A kind of desulphurization denitration vent gas treatment tower |
| CN107126804A (en) * | 2017-05-17 | 2017-09-05 | 华南理工大学 | A kind of water smoke absorbs chamber device |
| CN107158910A (en) * | 2017-06-28 | 2017-09-15 | 青岛国林环保科技股份有限公司 | A kind of denitrating flue gas ozone reaction device |
| CN107661682B (en) * | 2017-11-03 | 2024-02-06 | 中冶赛迪工程技术股份有限公司 | Flue with intensive mixing component and active carbon injection system |
| CN107661682A (en) * | 2017-11-03 | 2018-02-06 | 中冶赛迪工程技术股份有限公司 | It is a kind of that there is the flue and activated carbon spraying system for strengthening hybrid component |
| CN109432988A (en) * | 2018-05-24 | 2019-03-08 | 国能科创节能技术（北京）有限公司 | Flue gas two stage desulfurizing and purifying system |
| CN111068410A (en) * | 2018-10-19 | 2020-04-28 | 航天环境工程有限公司 | Efficient purification device for wet smoke plume of direct-discharge chimney of wet desulfurization tower by calcium method and application |
| US11383195B2 (en) | 2019-11-21 | 2022-07-12 | Industrial Technology Research Institute | Device for capturing particles |
| TWI699234B (en) * | 2019-11-21 | 2020-07-21 | 財團法人工業技術研究院 | Device for capturing particles |
| CN111514713A (en) * | 2020-03-26 | 2020-08-11 | 南京龙源环保有限公司 | Equipment and method for removing odor substances in flue gas |
| CN111514713B (en) * | 2020-03-26 | 2024-01-19 | 国能龙源环保南京有限公司 | Equipment and method for removing peculiar smell substances in flue gas |
| CN112303643A (en) * | 2020-11-04 | 2021-02-02 | 昆明理工大学 | Household garbage incinerator and household garbage incineration method |
| CN112303643B (en) * | 2020-11-04 | 2021-10-01 | 昆明理工大学 | Household garbage incinerator and household garbage incineration method |
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