CN207085653U - A kind of small incinerator denitrification apparatus - Google Patents
A kind of small incinerator denitrification apparatus Download PDFInfo
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- CN207085653U CN207085653U CN201720459885.0U CN201720459885U CN207085653U CN 207085653 U CN207085653 U CN 207085653U CN 201720459885 U CN201720459885 U CN 201720459885U CN 207085653 U CN207085653 U CN 207085653U
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- oxidation
- oxidant
- gas
- spray gun
- denitration reactor
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Abstract
The utility model discloses a kind of small incinerator denitrification apparatus, including aoxidizing jet chamber, airflow spray gun and oxidation and denitration reactor, in the airflow spray gun insertion oxidation jet chamber, aoxidize jet chamber outlet connection oxidation and denitration reactor bottom gas access, the bottom liquid inlet of the oxidation and denitration reactor is connected with the outlet of oxidant circulating pump, the entrance of the oxidant circulating pump is connected with the liquid outlet of oxidation and denitration reactor bottom, the oxidation and denitration reactor central liquid entrance connects alkaline circulating-pump outlet, NaOH solution circulating pump entrance connects oxidation and denitration reactor bottom liquid outlet.The utility model utilizes the oxidation and denitration reactor of particular design, high by denitration three times, denitration rate；The oxidation of flue gas and alkalescence absorption are separated, is absorbed after initial oxidation, is allowed oxidant fully to be contacted with flue gas, do not disturbed by alkaline solution；Oxidant does not mix with alkaline solution, the nitrate solution secondary use of acquisition.
Description
Technical field
It the utility model is related to disposition of solid waste field, more particularly to a kind of small incinerator denitrification apparatus.
Background technology
The burning disposal of solid waste, it is the process of a kind of pyrolytic and high thermal oxide, combustible solid wastes by utilizing is abundant
Under conditions of oxygen supply, combustion reaction occurs, makes its oxidation Decomposition, is converted into gaseous material（CO2And water）With non-flammable solid-state
Residue, while heat caused by burning is recycled in waste heat boiler for generating electricity or heat supply.So as to reach volume reduction, remove
The purpose of toxicity and the recovery energy, realizes the minimizing of solid waste, innoxious and recycling.By burning, solid waste
Volume can reduce 80%~90%, and new incinerator can make the Waste volume after burning there was only the 5% of original volume even more
It is few.The national conditions in China are that medium and small chemical enterprise is numerous, complex process, and the solid waste quantity of each enterprise is few, are concentrated tired
It is difficult.Small incinerator, i.e., incinerator of the treating capacity less than 300kg is widely used in a variety of applications per hour, and it can handle distillation
Waste residue, industrial silt, packing material etc..For the use of specification small incinerator, country has put into effect dangerous waste incineration pollution control
Standard GB18484-2001 processed, has strictly regulated the discharge standard of small incinerator.
Small incinerator needs discarded object complicated component to be processed, wherein nitrogenous organic matter can produce in combustion
NOx, it is necessary to carry out denitration at a temperature of 250-300 DEG C, this is mismatched with general incinerator technical process, in addition exhaust gas volumn
Less than 3000 mark sides, catalytic denitration equipment investment is huge, it is necessary to which high temperature denitration condition, small incinerator are difficult with；Exist simultaneously
Require that oxidant fully contacts with flue gas when carrying out oxidation and denitration, ensure denitration rate, meanwhile, alkali lye also will fully connect with flue gas
Touch, realize NO in flue gas2Fully absorb, be converted into nitrate, and existing small incinerator denitration rate is relatively low, for this we
A kind of small incinerator denitrification apparatus be have devised to solve problem above.
Utility model content
The purpose of this utility model is and a kind of small incinerator proposed in order to solve shortcoming present in prior art
Denitrification apparatus.
To achieve these goals, the utility model employs following technical scheme：
A kind of small incinerator denitrification apparatus, including oxidation jet chamber, airflow spray gun and oxidation and denitration reactor, it is described
In airflow spray gun insertion oxidation jet chamber, outlet connection oxidation and denitration reactor bottom gas access in oxidation jet chamber is described
Side of the airflow spray gun away from oxidation jet chamber is provided with compressed air inlet and oxidant inlet, the oxidation and denitration reactor
Top is provided with gas vent, and the bottom liquid inlet of the oxidation and denitration reactor is connected with the outlet of oxidant circulating pump, institute
The entrance for stating oxidant circulating pump is connected with the liquid outlet of oxidation and denitration reactor bottom, in the middle part of the oxidation and denitration reactor
Liquid inlet connects alkaline circulating-pump outlet, and NaOH solution circulating pump entrance connection oxidation and denitration reactor bottom liquid outlet is described
Oxidation and denitration reactor be sequentially provided with skirt, bottom bulkhead, cylinder, gas access, seal pot, bubble-cap, liquid from top to bottom
Catch tray, packing layer, oxidant circulation fluid spray gun, central dividing plate, middle part end socket, gas distribution grid, one-level alkali lye spray gun, two level
Alkali lye spray gun, three-level alkali lye spray gun, demister, gas vent and down-flow plate, the cylinder is in one-level alkali lye spray gun and oxidant
Central gas outlet and central gas entrance are provided between circulation fluid spray gun, and central gas outlet and central gas entrance pass through
Gas connection pipe is connected, and the cylinder is provided with fresh alkali liquor inlet in the side away from gas connection pipe and alkali lye circulation fluid goes out
Mouthful, and middle part end socket is located between fresh alkali liquor inlet and the outlet of alkali lye circulation fluid, the cylinder is in one away from gas access
The fresh oxidant inlet in side and the outlet of oxidant circulation fluid, and bottom bulkhead is located at fresh oxidant inlet and oxidant circulation fluid
Between outlet.
Preferably, the oxidation and denitration reactor head is connected with sack cleaner provided with gas outlet.
Preferably, the porch for aoxidizing jet chamber enters NOxFlue gas, NOxOutlet line of the flue gas from sack cleaner,
Temperature is 150 DEG C, pressure-1000-1000Pa.
Preferably, the airflow spray gun loads oxidant by oxidant inlet, and oxidant is hydrogen peroxide, chlorous acid
The mixture of sodium, ozone or several oxidants.
Preferably, it is hydrogen peroxide, sodium chlorite, sweet smell that the bottom liquid import of the oxidation and denitration reactor, which adds oxidant,
The mixture of oxidant or several oxidants, the alkali lye that middle part lye import adds is magnesia slurry, lime slurry and
Soda bath.
Compared with prior art, the beneficial effects of the utility model are：In the utility model, the oxidation of particular design is utilized
Benitration reactor is high by denitration three times, denitration rate；The oxidation of flue gas and alkalescence are absorbed and separated, is absorbed after initial oxidation, allows oxygen
Agent fully contacts with flue gas, is not disturbed by alkaline solution；Oxidant does not mix with alkaline solution, the nitrate solution of acquisition
Secondary use.
Brief description of the drawings
Fig. 1 be the utility model proposes a kind of small incinerator denitrification apparatus structural representation；
Fig. 2 be the utility model proposes the structure of oxidation and denitration reactor knot of small incinerator denitrification apparatus a kind of show
It is intended to.
In figure：1 oxidation jet chamber, 2 airflow spray guns, 3 oxidation and denitration reactors, 301 skirts, 302 bottom bulkheads, 303
Cylinder, 304 gas accesses, 305 seal pots, 306 bubble-caps, 307 liquid collection trays, 308 packing layers, the spray of 309 oxidant circulation fluids
Rifle, the outlet of 310 central gas, 311 gas connection pipes, 312 central dividing plates, 313 middle part end sockets, 314 central gas entrances, 315
Gas distribution grid, 316 one-level alkali lye spray guns, 317 two level alkali lye spray guns, 318 three-level alkali lye spray guns, 319 demisters, 320 gases
Outlet, the outlet of 321 fresh alkali liquor inlets, 322 alkali lye circulation fluids, 323 down-flow plates, 324 fresh oxidant inlets, 325 oxidants
Circulation fluid outlet, 4 oxidant circulating pumps, 5 NaOH solution circulating pumps.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.
Reference picture 1-2, a kind of small incinerator denitrification apparatus, a kind of small incinerator denitrification apparatus, including oxidation injection
Room 1, airflow spray gun 2 and oxidation and denitration reactor 3, the insertion of airflow spray gun 2 are aoxidized in jet chamber 1, and oxidation jet chamber 1 exports
The bottom gas inlet of oxidation and denitration reactor 3 is connected, side of the airflow spray gun 2 away from oxidation jet chamber 1 is provided with compressed air
Entrance and oxidant inlet, airflow spray gun 2 by oxidant inlet load oxidant, oxidant be hydrogen peroxide, sodium chlorite,
The mixture of ozone or several oxidants, the top of oxidation and denitration reactor 3 are provided with gas vent, and oxidation and denitration reactor 3 pushes up
Portion is connected with sack cleaner provided with gas outlet, and the porch of oxidation jet chamber 1 enters NOxFlue gas, NOxFlue gas comes from cloth
The outlet line of bag dust collector, temperature are 150 DEG C, and pressure-1000-1000Pa, the bottom liquid of oxidation and denitration reactor 3 enters
Mouth is connected with the outlet of oxidant circulating pump 4, the bottom liquid import of oxidation and denitration reactor 3 add oxidant be hydrogen peroxide,
The mixture of sodium chlorite, Fenton oxidation agent or several oxidants, middle part lye import add alkali lye for magnesia slurry,
Lime slurry and soda bath, the entrance of oxidant circulating pump 4 are connected with the liquid outlet of the bottom of oxidation and denitration reactor 3, oxygen
Change the alkaline circulating pump 5 of the central liquid entrance of Benitration reactor 3 connection to export, the connection oxidation and denitration reaction of the entrance of NaOH solution circulating pump 5
The bottom liquid outlet of device 3, oxidation and denitration reactor 3 be sequentially provided with from top to bottom skirt 301, bottom bulkhead 302, cylinder 303,
Gas access 304, seal pot 305, bubble-cap 306, liquid collection tray 307, packing layer 308, oxidant circulation fluid spray gun 309, in
Space bar 312, middle part end socket 313, gas distribution grid 315, one-level alkali lye spray gun 316, two level alkali lye spray gun 317, three-level alkali lye
Spray gun 318, demister 319, gas vent 320 and down-flow plate 323, cylinder 303 circulate in one-level alkali lye spray gun 316 and oxidant
Central gas outlet 310 and central gas entrance 314, and central gas outlet 310 and central gas are provided between liquid spray gun 309
Entrance 314 is connected by gas connection pipe 311, and cylinder 303 is provided with fresh alkali liquor inlet in the side away from gas connection pipe 311
321 and alkali lye circulation fluid outlet 322, and middle part end socket 313 be located at fresh alkali liquor inlet 321 and alkali lye circulation fluid export 322 it
Between, cylinder 303 exports 325, and bottom in the fresh oxidant inlet 324 in side away from gas access 304 and oxidant circulation fluid
Portion's end socket 302 is located between fresh oxidant inlet 324 and oxidant circulation fluid outlet 325.
Operation principle：Flue gas enters oxidation jet chamber 1, sprays into oxidant by airflow spray gun 2, flue gas enters with oxidant
Row contact mixing, NO is oxidized to by the NO in flue gas2, flue gas enter oxidation and denitration reactor 3 in oxidant in bubble-cap 306
Blistering reaction is carried out, enters the top absorption edge of oxidation and denitration reactor 3 and alkali lye after then carrying out haptoreaction on filler surface
By NO after contact2Absorb, generate nitrate.Wherein oxidation and denitration reactor is the core of the present apparatus, and equipment is divided into two
Part, Part I set one layer of bubbling cover 306, and flue gas passes through bubble-cap 306, fully contacted with the oxidant of circulation, on flue gas
NO after rising in filler again with oxidant in filler surface progress catalytic oxidation, flue gas is oxidized to NO2；Part II
Three layers of spray equipment, gas distribution grid 315 and demister 319 etc., the NO in flue gas are set2Occur with the alkaline solution of addition anti-
Nitrate should be converted to.Whole device passes through denitration three times, carries out denitration by spraying into oxidant for the first time；It is bubble-cap for the second time
Aoxidized on 306 column plate；Third time is aoxidized on filler, is by denitration three times, denitration rate the characteristics of device
It is high；The oxidation of flue gas and alkalescence absorption are separated, is absorbed after initial oxidation, allows oxidant fully to be contacted with flue gas, it is not molten by alkalescence
The interference of liquid；Oxidant does not mix with alkaline solution, the nitrate solution secondary use of acquisition.
It is described above, the only preferable embodiment of the utility model, but the scope of protection of the utility model is not
This is confined to, any one skilled in the art is in the technical scope that the utility model discloses, according to this practicality
New technical scheme and its utility model design are subject to equivalent substitution or change, should all cover in protection model of the present utility model
Within enclosing.
Claims (5)
1. a kind of small incinerator denitrification apparatus, including oxidation jet chamber（1）, airflow spray gun（2）With oxidation and denitration reactor
（3）, it is characterised in that the airflow spray gun（2）Insertion oxidation jet chamber（1）In, aoxidize jet chamber（1）Outlet connection oxidation
Benitration reactor（3）Bottom gas inlet, the airflow spray gun（2）Away from oxidation jet chamber（1）To be provided with compression empty for side
Gas entrance and oxidant inlet, the oxidation and denitration reactor（3）Top is provided with gas vent, the oxidation and denitration reactor
（3）Bottom liquid inlet be connected with oxidant circulating pump（4）Outlet, the oxidant circulating pump（4）Entrance and oxidation
Benitration reactor（3）The liquid outlet of bottom is connected, the oxidation and denitration reactor（3）The connection alkalescence circulation of central liquid entrance
Pump（5）Outlet, NaOH solution circulating pump（5）Entrance connects oxidation and denitration reactor（3）Bottom liquid outlet, described oxidation and denitration are anti-
Answer device（3）Skirt is sequentially provided with from top to bottom（301）, bottom bulkhead（302）, cylinder（303）, gas access（304）, seal pot
（305）, bubble-cap（306）, liquid collection tray（307）, packing layer（308）, oxidant circulation fluid spray gun（309）, central dividing plate
（312）, middle part end socket（313）, gas distribution grid（315）, one-level alkali lye spray gun（316）, two level alkali lye spray gun（317）, three-level
Alkali lye spray gun（318）, demister（319）, gas vent（320）And down-flow plate（323）, the cylinder（303）In one-level alkali lye
Spray gun（316）With oxidant circulation fluid spray gun（309）Between be provided with central gas export（310）With central gas entrance（314）,
And central gas exports（310）With central gas entrance（314）Pass through gas connection pipe（311）It is connected, the cylinder（303）
Away from gas connection pipe（311）Side be provided with fresh alkali liquor inlet（321）Exported with alkali lye circulation fluid（322）, and middle part is sealed
Head（313）Positioned at fresh alkali liquor inlet（321）Exported with alkali lye circulation fluid（322）Between, the cylinder（303）Away from gas
Entrance（304）The fresh oxidant inlet in side（324）Exported with oxidant circulation fluid（325）, and bottom bulkhead（302）It is located at
Fresh oxidant inlet（324）Exported with oxidant circulation fluid（325）Between.
A kind of 2. small incinerator denitrification apparatus according to claim 1, it is characterised in that the oxidation and denitration reactor
（3）Top is connected with sack cleaner provided with gas outlet.
A kind of 3. small incinerator denitrification apparatus according to claim 1 or 2, it is characterised in that oxidation jet chamber（1）'s
Porch enters NOxFlue gas, NOxOutlet line of the flue gas from sack cleaner, temperature are 150 DEG C, pressure-1000-
1000Pa。
A kind of 4. small incinerator denitrification apparatus according to claim 1, it is characterised in that the airflow spray gun（2）
Oxidant is loaded by oxidant inlet, oxidant is the mixture of hydrogen peroxide, sodium chlorite, ozone or several oxidants.
A kind of 5. small incinerator denitrification apparatus according to claim 1, it is characterised in that the oxidation and denitration reactor
（3）Bottom liquid import add oxidant be hydrogen peroxide, sodium chlorite, Fenton oxidation agent or the mixing of several oxidants
Thing, the alkali lye that middle part lye import adds is magnesia slurry, lime slurry and soda bath.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720459885.0U CN207085653U (en) | 2017-04-28 | 2017-04-28 | A kind of small incinerator denitrification apparatus |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720459885.0U CN207085653U (en) | 2017-04-28 | 2017-04-28 | A kind of small incinerator denitrification apparatus |
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| Publication Number | Publication Date |
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| CN207085653U true CN207085653U (en) | 2018-03-13 |
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| CN201720459885.0U Active CN207085653U (en) | 2017-04-28 | 2017-04-28 | A kind of small incinerator denitrification apparatus |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109550341A (en) * | 2018-11-21 | 2019-04-02 | 浙江菲达环保科技股份有限公司 | Alkali recovery furnace flue gas minimum discharge device and flue gas processing method |
-
2017
- 2017-04-28 CN CN201720459885.0U patent/CN207085653U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109550341A (en) * | 2018-11-21 | 2019-04-02 | 浙江菲达环保科技股份有限公司 | Alkali recovery furnace flue gas minimum discharge device and flue gas processing method |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200910 Address after: 735000 beihewan circular economy industrial park, Jinta County, Jiuquan City, Gansu Province Patentee after: Gansu jinyuantai New Material Co., Ltd Address before: 224600 Jiangsu Province, Yancheng City Chemical Industry Park Patentee before: YANCHENG HONGYAN CHEMICAL Co.,Ltd. |