CN205461703U - Nitrogen oxide processing apparatus - Google Patents
Nitrogen oxide processing apparatus Download PDFInfo
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- CN205461703U CN205461703U CN201620096416.2U CN201620096416U CN205461703U CN 205461703 U CN205461703 U CN 205461703U CN 201620096416 U CN201620096416 U CN 201620096416U CN 205461703 U CN205461703 U CN 205461703U
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- scrubbing tower
- tower
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- cartridge
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Abstract
The utility model discloses a nitrogen oxide processing apparatus, including concatenating the tertiary scrubbing tower between intake pipe and blast pipe in proper order, first order scrubbing tower and second level scrubbing tower are provided with a ORP controller and the 2nd ORP controller respectively, first order scrubbing tower is through a first measuring pump pipe connector oxidant liquid medicine section of thick bamboo, first measuring pump is controlled by a ORP controller, second level scrubbing tower passes through a second measuring pump pipe connector reductant liquid medicine section of thick bamboo, the second measuring pump is controlled by the 2nd ORP controller, third level scrubbing tower passes through a third measuring pump pipe connector neutralizer liquid medicine section of thick bamboo, the third measuring pump is controlled by the 3rd PH controller. Utility model has the advantage efficient, that the denitrogenation is effectual.
Description
Technical field
This utility model relates to exhaust-gas treatment, especially relates to the nitrogen oxygen that a kind of efficiency is high, denitrification effect is good
Compound processing means.
Background technology
Nitrogen oxides mainly includes nitric oxide (NO) and nitrogen dioxide (NO2), at the quilt sixties in 20th century
One of major pollutants confirming as air.In numerous improvement, nitrogen oxides difficulty of governance is relatively big, also
It is the arch-criminal of atmosphere pollution.As can not get effectively controlling, being not added with improvement and being directly discharged in air, will be to week
Healthy and other animals and plants of surrounding environment and crowd produce serious harm.Domestic improvement such
Conventional method mainly has absorption process, oxidation-reduction method, absorption method.Absorption process mainly uses alkaline solution
If ammonia, Caustic soda, Calx, sodium carbonate etc. are as absorbent, generated with reaction of nitrogen oxides by alkali
Nitrate or nitrite, the major defect that the method exists is that oxides of nitrogen gas is biphase with absorbing liquid
In contact process, liquid film power-assisted is relatively big, and actual absorption efficiency is on the low side, and clean-up effect is inconspicuous；According to investigations,
Most enterprises uses absorption process, is main in a wet process, but owing to technique is simple, specific aim is not strong, place
Reason effect is unsatisfactory.Oxidation-reduction method use noble metal as catalyst, utilize ammonia as reducing agent,
Make under certain condition conversion of nitrogen oxides become nitrogen, shortcoming be the selection of catalyst be crucial, Er Qieyao
Consuming substantial amounts of ammonia, reaction condition is harsher, is unsuitable for extensively applying, and uses also inconvenient.Absorption
Method uses nitrogen oxides in the absorption such as zeolite molecular sieve, mud coal, activated carbon, and the method purification efficiency is high,
But needing substantial amounts of adsorbent, and need to regenerate adsorbent, processing procedure is comparatively laborious,
It is also unsuitable for extensively applying.
Summary of the invention
For solving the problems referred to above, the purpose of this utility model is to provide a kind of efficiency height, denitrification effect good
Nitrogen oxides treatment device.
This utility model is realized by techniques below measure, and a kind of nitrogen oxides treatment device, including depending on
The secondary three grades of scrubbing towers being serially connected between air inlet pipe and exhaustor, described air inlet pipe is connected to first order washing
At the bottom of the tower of tower, the tower top pipe of described first order scrubbing tower connects at the bottom of the tower of second level scrubbing tower, the described second level
The tower top pipe of scrubbing tower connects at the bottom of the tower of third level scrubbing tower, and the tower top of described third level scrubbing tower is by exhaustor
Discharge denitrogenation gas；Described first order scrubbing tower and second level scrubbing tower are respectively arranged with an ORP and control
Device (oxidation reduction potential control device) and the 2nd ORP controller, described first order scrubbing tower passes through first
Metering pump line connects oxidant cartridge, and described first dosing pump is controlled by an ORP controller；Described
Two grades of scrubbing towers connect reducing agent cartridge by the second metering pump line, and described second dosing pump is controlled by second
ORP controller；Described third level scrubbing tower connects nertralizer cartridge by the 3rd metering pump line, and described the
Three dosing pumps are controlled by the 3rd PH controller.
As a kind of optimal way, described first order scrubbing tower connects nertralizer medicinal liquid by the 4th metering pump line
Cylinder, described 4th dosing pump is controlled by a PH controller；Described second level scrubbing tower is by the 5th meter
Amount pump line connects nertralizer cartridge, and described 5th dosing pump is controlled by the 2nd PH controller.
As a kind of optimal way, in described three grades of scrubbing towers, it is respectively arranged with two spraying layers, described two sprays
Drenching layer parallel transistor to be connected on a shower, described shower is provided with verticle circulatory pump, described three grades of washings
Being respectively arranged with liquid level controller in the water tank of tower, each verticle circulatory pump is controlled by the liquid level control of correspondence
Device processed.
As a kind of optimal way, in described three grades of scrubbing towers, it is respectively arranged with three packed layers.
As a kind of optimal way, in described three packed layers, one layer of the top is demister layer, lower section two
Packed layer is Raschig ring packed layer.
As a kind of optimal way, in described oxidant cartridge and reducing agent cartridge, it is respectively arranged with liquid
Level controller, described first dosing pump is controlled by the liquid level controller in oxidant cartridge, and described second
Dosing pump is controlled by the liquid level controller in reducing agent cartridge.
As a kind of optimal way, in described nertralizer cartridge, it is provided with liquid level controller, the described 3rd
Dosing pump, the 4th dosing pump, the 5th dosing pump are controlled by the liquid level controller in nertralizer cartridge.
The flow process of this utility model this nitrogen oxides treatment device is as follows:
(1) gas sampling Pipeline transport waste gas enters from the bottom of air inlet pipe, the tower of first order scrubbing tower, first
Carry out the spray program of two sections, utilize the Circulation of the pump of acid and alkali-resistance, in sprinkling oxidant to scrubbing tower
Carrying out chemical reaction with waste gas, the effect of oxidation is controlled by ORP controller, and the effect of neutralization passes through pH
Controller controls, and in this one-level, NO will be oxidized to NO2And be dissolved in the water；
(2) scrubbing tower major function in the second level is to utilize reducing agent and NO2Carry out chemical reaction, reduction
Effect is controlled by ORP controller, makes NO2 change into N2, thus reach to remove NO2Function；
(3) third level scrubbing tower is to prevent having byproduct gas to generate in the first two grade of tower, utilize NaOH with
Prime by-product neutralizes reaction once again, thus reaches the optimum efficiency of NOx exhaust-gas treatment.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
Below in conjunction with embodiment and compare accompanying drawing this utility model is described in further detail.
A kind of nitrogen oxides treatment device, refer to Fig. 1, including being sequentially connected in series in air inlet pipe 9 and aerofluxus
Three grades of scrubbing towers between pipe 4, described air inlet pipe 9 is connected at the bottom of the tower of first order scrubbing tower 1, described
The tower top pipe of first order scrubbing tower 1 connects at the bottom of the tower of second level scrubbing tower 2, described second level scrubbing tower 2
Tower top pipe connects at the bottom of the tower of third level scrubbing tower 3, and the tower top of described third level scrubbing tower 3 is by exhaustor 4 row
Go out denitrogenation gas；Described first order scrubbing tower 1 and second level scrubbing tower 2 are respectively arranged with an ORP control
Device 11 processed and the 2nd ORP controller 16, described first order scrubbing tower 1 is by the first metering pump line 13
Connecing oxidant cartridge 24, described first dosing pump 13 is controlled by an ORP controller 11；Described
Two grades of scrubbing towers 2 connect reducing agent cartridge 27, described second dosing pump 17 by the second metering pump line 17
It is controlled by the 2nd ORP controller 16；During described third level scrubbing tower 3 is connect by the 3rd dosing pump 21 pipe
Mediating recipe cartridge 26, described 3rd dosing pump 21 is controlled by the 3rd PH controller 20.
The flow process of this nitrogen oxides treatment device is as follows:
(1) gas sampling Pipeline transport waste gas enters from the bottom of air inlet pipe 9, the tower of first order scrubbing tower 1,
First carry out the spray program of two sections, utilize the Circulation of the pump of acid and alkali-resistance, spray oxidant to washing
Carrying out chemical reaction with waste gas in tower, the effect of oxidation is controlled by ORP controller, and the effect of neutralization is led to
Crossing pH controller to control, in this one-level, NO will be oxidized to NO2And be dissolved in the water；
(2) second level scrubbing tower 2 major function is to utilize reducing agent and NO2Carry out chemical reaction, reduction
Effect controlled by ORP controller, make NO2Change into N2, thus reach to remove NO2Function；
(3) third level scrubbing tower 3 is to prevent having byproduct gas to generate in the first two grade of tower, utilizes NaOH
Neutralize reaction once again with prime by-product, thus reach the optimum efficiency of NOx exhaust-gas treatment.
The nitrogen oxides treatment device of the present embodiment, refer to Fig. 1, on the basis of previous technique scheme
It is concrete it is also possible that first order scrubbing tower 1 connects nertralizer cartridge 26 by the 4th dosing pump 12 pipe,
Described 4th dosing pump 12 is controlled by the PH controller being arranged in first order scrubbing tower 1 water tank
10；Described second level scrubbing tower 2 connects nertralizer cartridge 26 by the 5th dosing pump 18 pipe, and described
Five dosing pumps 18 are controlled by the 2nd PH controller 15 being arranged in second level scrubbing tower 2 water tank.
The nitrogen oxides treatment device of the present embodiment, refer to Fig. 1, on the basis of previous technique scheme
Concrete it is also possible that be respectively arranged with two spraying layers 6 in three grades of scrubbing towers, described two spraying layers 6 are in parallel
Pipe is connected on a shower, and described shower is provided with verticle circulatory pump 14,22, described three grades of scrubbing towers
Water tank in be respectively arranged with liquid level controller 19, each verticle circulatory pump be controlled by correspondence liquid level control
Device processed.
The nitrogen oxides treatment device of the present embodiment, refer to Fig. 1, on the basis of previous technique scheme
Concrete it is also possible that be respectively arranged with three packed layers in three grades of scrubbing towers.
The nitrogen oxides treatment device of the present embodiment, refer to Fig. 1, on the basis of previous technique scheme
Concrete it is also possible that in three packed layers one layer of the top be demister layer 5, lower section two packed layer is for drawing
Western ring filling layer 7,8.When the gas containing mist flows through demister layer with certain speed, due to gas
Inertial impaction effect, the drop that the corrugated sheet of mist and demister layer collides and gathered arrives greatly himself
The gravity produced exceedes climbing power and when the making a concerted effort of surface tension of liquid of gas, and drop is just from corrugated sheet table
Being separated on face, the structure that is folded to of the corrugated sheet of demister layer adds the machine that mist is captured more
Meeting, the mist not being removed is captured through identical effect at next turning, the most repeatedly makees
With, thus substantially increase demisting efficiency；Raschig ring packed layer in scrubbing tower increases contact area,
The nitrogen oxides treatment device of the present embodiment, refer to Fig. 1, on the basis of previous technique scheme
Concrete it is also possible that be respectively arranged with Liquid level in oxidant cartridge 24 and reducing agent cartridge 27
Device, the liquid level controller 23 that described first dosing pump 11 is also controlled by oxidant cartridge 24, described
Second dosing pump 17 is also controlled by the liquid level controller in reducing agent cartridge 27.
The nitrogen oxides treatment device of the present embodiment, refer to Fig. 1, on the basis of previous technique scheme
Concrete it is also possible that be provided with liquid level controller 25 in nertralizer cartridge 26, described 3rd dosing pump
21, the liquid level control that the 4th dosing pump the 12, the 5th dosing pump 18 is controlled by nertralizer cartridge 26
Device 25 processed.
It is above this utility model nitrogen oxides treatment device is set forth, is adapted to assist in and understands this reality
With novel, but embodiment of the present utility model being not restricted to the described embodiments, any without departing from this
The change made under utility model principle, modify, substitute, combine, simplify, all should be the displacement of equivalence
Mode, is included in the interior of protection domain of the present utility model.
Claims (7)
1. a nitrogen oxides treatment device, it is characterised in that: include being sequentially connected in series air inlet pipe and row
Three grades of scrubbing towers between trachea, described air inlet pipe is connected at the bottom of the tower of first order scrubbing tower, and described first
The tower top pipe of level scrubbing tower connects at the bottom of the tower of second level scrubbing tower, and the tower top pipe of described second level scrubbing tower connects the
At the bottom of the tower of three grades of scrubbing towers, the tower top of described third level scrubbing tower is discharged denitrogenation gas by exhaustor；Described
First order scrubbing tower and second level scrubbing tower are respectively arranged with an ORP controller and the 2nd ORP controls
Device, described first order scrubbing tower connects oxidant cartridge, described first dosing pump by the first metering pump line
It is controlled by an ORP controller；Described second level scrubbing tower connects reducing agent medicinal liquid by the second metering pump line
Cylinder, described second dosing pump is controlled by the 2nd ORP controller；Described third level scrubbing tower is by the 3rd meter
Amount pump line connects nertralizer cartridge, and described 3rd dosing pump is controlled by the 3rd PH controller.
Nitrogen oxides treatment device the most according to claim 1, it is characterised in that: described first
Level scrubbing tower connects nertralizer cartridge by the 4th metering pump line, and described 4th dosing pump is controlled by a PH
Controller；Described second level scrubbing tower connects nertralizer cartridge, described 5th meter by the 5th metering pump line
Amount pump is controlled by the 2nd PH controller.
Nitrogen oxides treatment device the most according to claim 1 and 2, it is characterised in that: described
Being respectively arranged with two spraying layers in three grades of scrubbing towers, described two spraying layer parallel transistors are connected on a shower,
Described shower is provided with verticle circulatory pump, is respectively arranged with liquid level control in the water tank of described three grades of scrubbing towers
Device processed, each verticle circulatory pump is controlled by the liquid level controller of correspondence.
Nitrogen oxides treatment device the most according to claim 1 and 2, it is characterised in that: described
It is respectively arranged with three packed layers in three grades of scrubbing towers.
Nitrogen oxides treatment device the most according to claim 4, it is characterised in that: described three fill out
One layer that fills the top in layer is demister layer, and lower section two packed layer is Raschig ring packed layer.
Nitrogen oxides treatment device the most according to claim 1 and 2, it is characterised in that: described
Being respectively arranged with liquid level controller in oxidant cartridge and reducing agent cartridge, described first dosing pump is subject to
Controlling the liquid level controller in oxidant cartridge, described second dosing pump is controlled by reducing agent cartridge
Liquid level controller.
Nitrogen oxides treatment device the most according to claim 2, it is characterised in that: described neutralization
Liquid level controller, described 3rd dosing pump, the 4th dosing pump, the 5th dosing pump it is provided with in agent cartridge
It is controlled by the liquid level controller in nertralizer cartridge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620096416.2U CN205461703U (en) | 2016-01-30 | 2016-01-30 | Nitrogen oxide processing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620096416.2U CN205461703U (en) | 2016-01-30 | 2016-01-30 | Nitrogen oxide processing apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205461703U true CN205461703U (en) | 2016-08-17 |
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ID=56672724
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620096416.2U Expired - Fee Related CN205461703U (en) | 2016-01-30 | 2016-01-30 | Nitrogen oxide processing apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205461703U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109432960A (en) * | 2018-11-28 | 2019-03-08 | 江门市佐敦环保科技有限公司 | A kind of purification device of the exhaust gas containing oxynitrides |
-
2016
- 2016-01-30 CN CN201620096416.2U patent/CN205461703U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109432960A (en) * | 2018-11-28 | 2019-03-08 | 江门市佐敦环保科技有限公司 | A kind of purification device of the exhaust gas containing oxynitrides |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160817 Termination date: 20210130 |