CN209076400U - A kind of smoke gas treatment system - Google Patents
A kind of smoke gas treatment system Download PDFInfo
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- CN209076400U CN209076400U CN201821793408.9U CN201821793408U CN209076400U CN 209076400 U CN209076400 U CN 209076400U CN 201821793408 U CN201821793408 U CN 201821793408U CN 209076400 U CN209076400 U CN 209076400U
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- reactor
- treatment system
- gas treatment
- smoke gas
- deduster
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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- Treating Waste Gases (AREA)
Abstract
The utility model belongs to machinery equipment field more particularly to a kind of smoke gas treatment system.Smoke gas treatment system provided by the utility model includes: reactor, and the inlet air stack of the reactor is provided with dry sorbent injection unit, and the inner cavity of the reactor is provided with spray ammonia unit；The deduster being connected with the exhanst gas outlet of the reactor, the deduster inner cavity are provided with the filter medium with catalysis.In the present invention, the flue gas that waste incinerator generates passes sequentially through reactor and deduster, period dry sorbent injection unit sprays dry absorbent to reactor inlet air stack, it sprays ammonia unit and sprays ammonium hydroxide and/or urea to reactor inner cavity, finally obtain cleaning flue gases in the dedusting exhanst gas outlet of deduster.Smoke gas treatment system provided by the utility model can realize sour gas in garbage incinerating tail gas, dioxin, NOXIt is removed with the integrated high-efficiency of particulate matter, there is good environmental benefit and economic benefit, wide market.
Description
Technical field
The utility model belongs to machinery equipment field more particularly to a kind of smoke gas treatment system.
Background technique
Waste incineration is the technology that a kind of pair of domestic waste carries out high temperature thermochemical treatment, using house refuse as solid
Fluid fuel is sent into furnace chamber inner combustion, under 800~1000 DEG C of hot conditions, in the combustible component and air in house refuse
Oxygen is chemically reacted, and is released heat and is converted into the burning gases and a small amount of fixed residue of high temperature, makes it to the mankind's
Harm is minimum, realizes the target of innoxious, minimizing and recycling to the maximum extent.But if incineration treatment of garbage is improper,
Pollutant emission will not be up to standard, then solid-state pollution is converted into gaseous contamination or the pollution of other forms continues to endanger environment, influence
People's health.
The core of incineration treatment of garbage technology is the rationalization of burning and the prevention and treatment of secondary pollution.In Refuse Incineration Process
Substance containing ingredients such as carbon, hydrogen, oxygen, nitrogen, sulphur, phosphorus and halogens is reacted with the oxygen in air, can generate a variety of harmful pollutions
Object, Pollution in Municipal Solid Waste Incineration object existence form and quantity and the condition of burning and purification system are closely related, and major pollutants have acid
Organic trace compounds, the particulate matters such as property gas, dioxin etc..
The pollutant sources that waste incineration generates are in waste component, existence form and quantity and burn condition and purification system
It unites closely related.On the one hand " garbage-surrounded city " on the one hand " neighbour keeps away movement " when waste incineration faces dilemma, removes
Improvement waste incineration condition, makes to burn in shape, burns outlet temperature and is not less than 850 DEG C, flue gas is in burner hearth and two
The residence time of secondary combustion chamber is not less than 2S, and rationally controls air quantity, temperature and the injection phase of combustion air, controls from source
Except the pollutants such as chlorine source processed generate, the flue gases purification of a set of innovation " subversiveness " certainly will be at last in order to solve the above problem
Barrier.The problems such as flue gas as brought by waste incineration itself is viscous, paste, and temperature change is big, and smoke components are complicated, at present needle
To multiple pollutant in garbage incinerating tail gas, it is suitable for industrialized integrated removing sulfuldioxide there is no a kind of.
Utility model content
In view of this, the purpose of this utility model is to provide a kind of smoke gas treatment system, cigarette provided by the utility model
Gas governing system can be to sour gas, dioxin, the NO in garbage incinerating tail gasXIt is de- that integrated high-efficiency is carried out with particulate matter
It removes.
The utility model provides a kind of smoke gas treatment system, comprising:
Reactor, the inlet air stack of the reactor are provided with the Dry absorption for spraying dry absorbent into flue
Agent injection unit, the inner cavity of the reactor are provided with the spray ammonia unit for spraying ammonium hydroxide and/or urea into reactor；
The deduster being connected with the exhanst gas outlet of the reactor, the deduster inner cavity are provided with catalysis
Filter medium.
Preferably, further include Dry absorption agent storage device, the discharge port of the Dry absorption agent storage device with it is described
The feed inlet of dry sorbent injection unit is connected.
It preferably, further include ammonia source storage device for storing ammonium hydroxide and/or urea, ammonia source storage device goes out
Material mouth is connected with the feed inlet of the spray ammonia unit.
It preferably, further include inlet baffle, the input end of the inlet air stack of the reactor is arranged in the inlet baffle.
It preferably, further include air preheater, the air inlet of the air preheater is connected with the dedusting exhanst gas outlet of the deduster.
It preferably, further include ash material storage device, the ash material storage device is connected with the dust export of the deduster.
Preferably, the filter medium with catalysis, which is negative, is loaded with the ceramic screen pipe of catalyst.
Preferably, the reactor is reaction tower or reaction flue.
Preferably, the spray ammonia unit is located at the bottom of the reaction tower, or positioned at the border of the reaction flue.
It preferably, further include the boiler being connected with the inlet air stack of the reactor, the boiler is waste incinerator.
Compared with prior art, the utility model provides a kind of smoke gas treatment system.Flue gas provided by the utility model
Governing system includes: reactor, and the inlet air stack of the reactor is provided with for spraying the dry of dry absorbent into flue
Formula sorbent injection unit, the inner cavity of the reactor are provided with the spray ammonia for spraying ammonium hydroxide and/or urea into reactor
Unit；The deduster being connected with the exhanst gas outlet of the reactor, the deduster inner cavity are provided with the mistake with catalysis
Filter medium.In the present invention, the flue gas that waste incinerator generates passes sequentially through reactor and deduster, during which Dry absorption
Agent injection unit sprays dry absorbent to reactor inlet air stack, and spray ammonia unit sprays ammonium hydroxide and/or urine to reactor inner cavity
Element finally obtains cleaning flue gases in the dedusting exhanst gas outlet of deduster.In the present invention, sour gas, dioxin, NOX
It is as follows with the removing principle of particulate matter: a) acid gas removal: the sour gas (SO in flue gasX、HCl、CO2Deng) and penetrating cigarette
Dry absorbent (such as Ca (OH) in road2) mixing, and sufficiently reacted in reactor, generate granular product (CaSO4、
CaCO3、CaCl2Deng), these products can be trapped with the particulate matter of other in flue gas by deduster.B) dioxin is de-
It removes: can see by the formation mechanism of dioxin, completely eliminate Cl during the burning process2It just can avoid the shape of dioxin with HCl
At, it is clear that this is extremely unpractical, but this programme is by the removing to HCl, thus the generation for dioxin of drawing up；Meanwhile dedusting
Filter medium in device with catalysis also traps the dioxin being adsorbed in flue gas particles pollutant, reaches de-
The purpose removed.c)NOXRemoving: for the NO in flue gasX, this programme by spraying into ammonium hydroxide or urea in the reactor, with NOx
It is chemically reacted, and the filter medium in deduster with catalysis can increase NOXRemoval efficiency.D) particulate matter
Removing: after flue gas enters deduster, Particulate Pollution object and unreacted dry absorbent in flue gas have catalysis
The filter medium of function forms one layer of muffin layer, to play the role of filtering particulate pollutant；In addition, anti-not in reactor
Polluted gas, unadsorbed dioxin, heavy metal for answering etc. can also participate in that the reaction was continued on filter medium, considerably increase
The specific surface area of reaction and reaction time, so that above-mentioned pollutant etc. be made to obtain double purification.Flue gas provided by the utility model
Governing system can realize sour gas in garbage incinerating tail gas, dioxin, NOXIt removes, has with the integrated high-efficiency of particulate matter
Good environmental benefit and economic benefit, wide market.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is the embodiments of the present invention, for those of ordinary skill in the art, without creative efforts, also
Other attached drawings can be obtained according to the attached drawing of offer.
Fig. 1 is smoke gas treatment system provided by the embodiment of the utility model.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
The utility model provides a kind of smoke gas treatment system, comprising:
Reactor, the inlet air stack of the reactor are provided with the Dry absorption for spraying dry absorbent into flue
Agent injection unit, the inner cavity of the reactor are provided with the spray ammonia unit for spraying ammonium hydroxide and/or urea into reactor；
The deduster being connected with the exhanst gas outlet of the reactor, the deduster inner cavity are provided with catalysis
Filter medium.
It is smoke gas treatment system provided by the embodiment of the utility model referring to Fig. 1, Fig. 1.In Fig. 1,1 it is reactor, 2 is dry
Formula absorb agent storage device, 3 be ammonia source storage device, 4 be deduster, 5 be inlet baffle, 6 be air preheater, 7 be ash material store
Device, 8 are boiler.
Smoke gas treatment system provided by the utility model includes reactor 1 and deduster 4.Wherein, reactor 1 is for carrying out
The hybrid reaction of flue gas and chemical reagent (dry absorbent and ammonia source compound), thus remove sour gas in flue gas and
NOX.In the present invention, reactor 1 includes the cavity for being provided with gas inlet and exhanst gas outlet, is connected with gas inlet
Inlet air stack and dry sorbent injection unit and spray ammonia unit.In one embodiment provided by the utility model, reaction
Device 1 is reaction tower or reaction flue.It is described anti-in the embodiment that a reactor 1 provided by the utility model is reaction tower
Answering tower is preferably vertical reaction tower；Gas inlet is preferably placed at the bottom of reaction tower, and exhanst gas outlet is preferably placed at the top of reaction tower
Portion.In one embodiment provided by the utility model, the input end of the inlet air stack of reactor 1 is provided with inlet baffle 5, uses
In the throughput for adjusting flue.
In the present invention, the inlet air stack of reactor 1 is arranged in dry sorbent injection unit, for into flue
Dry absorbent is sprayed, the dry absorbent is preferably calcium hydroxide (Ca (OH)2).In a reality provided by the utility model
It applies in example, the smoke gas treatment system further includes the dry absorbent storage dress matched with the dry sorbent injection unit
2 are set, Dry absorption agent storage device 2 is for storing dry absorbent, discharge port and the dry sorbent injection unit
Feed inlet is connected.
In the present invention, the inner cavity of reactor 1 is arranged in spray ammonia unit, for sprayed into reactor ammonium hydroxide and/
Or urea.In one embodiment provided by the utility model, the spray ammonia unit is located at the position for being biased to inlet air stack.At this
In the embodiment for 1 reaction tower of a reactor that utility model provides, the spray ammonia unit is located at the bottom of the reaction tower.
It is in the embodiment for reacting flue in a reactor 1 provided by the utility model, the spray ammonia unit is located at the reaction cigarette
The border in road.In one embodiment provided by the utility model, the smoke gas treatment system further includes and the spray ammonia unit
The ammonia source storage device 3 matched, ammonia source storage device 3 is for storing ammonium hydroxide and/or urea, discharge port and the spray ammonia list
The feed inlet of member is connected.
In the present invention, deduster 4 is used to trap particulate matter (including the acid in dry absorbent and flue gas in flue gas
The particulate matter contained originally in the product and flue gas produced after property gas reaction) and the dioxin that is adsorbed in particulate matter, and
NO in catalysed promoted flue gasXIt is reacted with ammonia source compound, improves NOXRemoval efficiency.In the present invention, deduster 4 includes
It is provided with the shell of dust remover of gas inlet, dedusting exhanst gas outlet and dust export, and having for housing cavity is set and is urged
Change the filter medium of function, the gas inlet is connected with the exhanst gas outlet of reactor 1.In a reality provided by the utility model
It applies in example, the filter medium with catalysis, which is negative, is loaded with the ceramic screen pipe of catalyst, and the catalyst includes but not
It is limited to CuCl2And/or FeCl3。
In one embodiment provided by the utility model, the smoke gas treatment system further includes air preheater 6, air preheater 6
Air inlet be connected with the dedusting exhanst gas outlet of the deduster.
In one embodiment provided by the utility model, the smoke gas treatment system further includes ash material storage device 7, ash
Material storage device 7 is connected with the dust export of the deduster.
In one embodiment provided by the utility model, the smoke gas treatment system further includes boiler 8, the cigarette of boiler 8
Gas outlet is connected with the inlet air stack of reactor 1.In one embodiment provided by the utility model, boiler 8 is waste incineration
Furnace.
In the present invention, the flue gas that waste incinerator generates passes sequentially through reactor and deduster, and during which dry type is inhaled
Receive agent injection unit to reactor inlet air stack spray dry absorbent, spray ammonia unit to reactor inner cavity spray ammonium hydroxide and/or
Urea finally obtains cleaning flue gases in the dedusting exhanst gas outlet of deduster.
In the present invention, sour gas, dioxin, NOXIt is as follows with the removing principle of particulate matter:
A) acid gas removal
Sour gas (SO in flue gasX、HCl、CO2Deng) with spray into flue dry absorbent (such as Ca (OH)2) mixing,
And sufficiently reacted in reactor, generate granular product (CaSO4、CaCO3、CaCl2Deng), these products can be with flue gas
In other particulate matters trapped by deduster.With Ca (OH)2For dry absorbent, chemical reaction mechanism is as follows:
Ca(OH)2+SO2→CaSO3+H2O；Ca(OH)2+SO3→CaSO4+H2O；
Ca(OH)2+CO2→CaCO3+H2O；Ca(OH)2+2HCl→CaCl2+2H2O。
B) removing of dioxin
It can see by the formation mechanism of dioxin, completely eliminate Cl during the burning process2It just can avoid dioxin with HCl
Formation, it is clear that this is extremely unpractical, but this programme is by the removing to HCl, to inhibit the generation of dioxin；Meanwhile
Filter medium in deduster with catalysis also traps the dioxin being adsorbed in flue gas particles pollutant, reaches
To the purpose of removing.
c)NOXRemoving
For the NO in flue gasX, this programme passes through sprays into ammonium hydroxide or urea in the reactor, it is chemically reacted with NOx,
And the filter medium in deduster with catalysis can increase NOXRemoval efficiency, chemical reaction mechanism is as follows:
4NO+4NH3+O2→4N2+6H2O；
4NO+2(NH2)2CO+O2→4N2+4H2O+2CO2。
D) removing of particulate matter
After flue gas enters deduster, Particulate Pollution object and unreacted dry absorbent in flue gas have catalysis
The filter medium of function forms one layer of muffin layer, to play the role of filtering particulate pollutant；In addition, anti-not in reactor
Polluted gas, unadsorbed dioxin, heavy metal for answering etc. can also participate in that the reaction was continued on filter medium, considerably increase
The specific surface area of reaction and reaction time, so that above-mentioned pollutant etc. be made to obtain double purification.
Smoke gas treatment system provided by the utility model can realize sour gas in garbage incinerating tail gas, dioxin, NOXWith
The integrated high-efficiency of particulate matter removes, and has good environmental benefit and economic benefit, wide market.
The above is only the preferred embodiment of the utility model, it is noted that for the common skill of the art
For art personnel, without departing from the principle of this utility model, several improvements and modifications can also be made, these improve and
Retouching also should be regarded as the protection scope of the utility model.
Claims (10)
1. a kind of smoke gas treatment system characterized by comprising
Reactor, the inlet air stack of the reactor are provided with the dry absorbent spray for spraying dry absorbent into flue
Unit is penetrated, the inner cavity of the reactor is provided with the spray ammonia unit for spraying ammonium hydroxide and/or urea into reactor；
The deduster being connected with the exhanst gas outlet of the reactor, the deduster inner cavity are provided with the filtering with catalysis
Medium.
2. smoke gas treatment system according to claim 1, which is characterized in that further include Dry absorption agent storage device, institute
The discharge port for stating Dry absorption agent storage device is connected with the feed inlet of the dry sorbent injection unit.
3. smoke gas treatment system according to claim 1, which is characterized in that further include for storing ammonium hydroxide and/or urea
Ammonia source storage device, the discharge port of ammonia source storage device with it is described spray ammonia unit feed inlet be connected.
4. smoke gas treatment system according to claim 1, which is characterized in that it further include inlet baffle, the inlet baffle
The input end of the inlet air stack of the reactor is set.
5. smoke gas treatment system according to claim 1, which is characterized in that further include air preheater, the air preheater into
Port is connected with the dedusting exhanst gas outlet of the deduster.
6. smoke gas treatment system according to claim 1, which is characterized in that further include ash material storage device, the ash material
Storage device is connected with the dust export of the deduster.
7. smoke gas treatment system according to claim 1, which is characterized in that the filter medium with catalysis is
Load has the ceramic screen pipe of catalyst.
8. smoke gas treatment system according to claim 1, which is characterized in that the reactor is reaction tower or reaction cigarette
Road.
9. smoke gas treatment system according to claim 8, which is characterized in that the spray ammonia unit is located at the reaction tower
Bottom, or positioned at the border of the reaction flue.
10. described in any item smoke gas treatment systems according to claim 1~9, which is characterized in that further include and the reactor
The connected boiler of inlet air stack, the boiler is waste incinerator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821793408.9U CN209076400U (en) | 2018-11-01 | 2018-11-01 | A kind of smoke gas treatment system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821793408.9U CN209076400U (en) | 2018-11-01 | 2018-11-01 | A kind of smoke gas treatment system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209076400U true CN209076400U (en) | 2019-07-09 |
Family
ID=67122075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821793408.9U Active CN209076400U (en) | 2018-11-01 | 2018-11-01 | A kind of smoke gas treatment system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209076400U (en) |
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2018
- 2018-11-01 CN CN201821793408.9U patent/CN209076400U/en active Active
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