CN206613372U - A kind of SNCR flue gas denitrification systems for domestic waste incineration - Google Patents
A kind of SNCR flue gas denitrification systems for domestic waste incineration Download PDFInfo
- Publication number
- CN206613372U CN206613372U CN201720251348.7U CN201720251348U CN206613372U CN 206613372 U CN206613372 U CN 206613372U CN 201720251348 U CN201720251348 U CN 201720251348U CN 206613372 U CN206613372 U CN 206613372U
- Authority
- CN
- China
- Prior art keywords
- urea liquid
- urea
- unit
- tank
- dilution
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Abstract
The utility model discloses a kind of SNCR flue gas denitrification systems for domestic waste incineration, including urea liquid preparation unit, urea liquid storage element, urea liquid dilution unit, static mixer, mixed allocation unit, gas distribution member, urea liquid injection unit；The urea liquid preparation unit includes the bucket elevator being delivered to solid urea particle in urea liquid preparation tank；The urea liquid storage element includes urea liquid conservation tank；The urea liquid preparation tank bottom is communicated to urea liquid conservation tank top by transporting pump；The urea liquid dilution unit includes dilution water pot；The static mixer is sequentially connected mixed allocation unit and urea liquid injection unit by solution mixing line；External compression air is sequentially connected gas distribution member and urea liquid injection unit by compressed-air line；The utility model avoids reducing agent and wasted and pollutant process situation not up to standard, it is ensured that the stable operation of waste incinerator.
Description
Technical field
The utility model is related to a kind of domestic waste incineration, and in particular to a kind of SNCR for domestic waste incineration
Flue gas denitrification system, for removing the NO in incineration flue gas of household garbageX, make its reaction generation N2And H2O。
Background technology
With fast-developing and urbanization process the quickening of global economy, urban land tends to be all the more nervous, waste incineration
The construction of factory and put into operation, effectively alleviate place problem needed for domestic waste is stacked.Garbage weight mitigates 80%- after burning
85%th, volume reduces the harmful substances such as the bacterium in 90%-95%, rubbish and is also eliminated after burning, effectively controls life
The secondary pollution that rubbish is brought；Heat produced by waste incineration can also give city heat supply or generating, turn waste into wealth.Its ring
Border value, economic value are higher.But house refuse can produce a large amount of particulate matters, HCL, SO in burning process2、NOX, bioxin
Etc. poisonous and hazardous flue gas, in this regard, burning power plant sets the flue gases such as depickling reaction tower, cloth bag reactor net in boiler tail
Change facility, successfully control flue dust, particulate matter and ease of solubility sour gas.But the NO in flue gasX, water is not readily dissolved in, by existing
Some depickling reaction towers can not be removed effectively, cause high concentration to be discharged；Feasible NO must be implementedXControl measure.
Nitrogen oxides is one of main atmosphere pollution, including a variety of nitrogen oxides such as nitric oxide, nitrogen dioxide.
It is mostly nitric oxide in the nitrogen oxides of domestic waste incineration discharge, oxidation in an atmosphere generates nitrogen dioxide.Greatly
Nitrogen oxides in gas causes soil acidification, outside climate change, can also produce a variety of unfavorable environment shadows except forming acid rain
Ring.Nitrogen oxides can be formed ground level ozone, tiny particles content, photochemical fog and regional gray haze by oxidation etc. and be polluted, shadow
The organs such as respiratory system, angiocarpy are rung, health is damaged；Nitrogen oxides is fallen in water body by rainwater, causes eutrophication
The problems such as.
SNCR denitration technology NH3, the reducing agent such as urea sprayed into stove and NOXSelective reaction is carried out, without catalyst,
But reducing agent must be added in high-temperature region.Reducing agent sprays into the region that fire box temperature is 850~1150 DEG C, and the reducing agent is (as urinated
Element, ammoniacal liquor) rapid thermal decomposition or gasify and NH3And with the NO in flue gasXCarry out reaction generation N2And H2O, so as to reduce in flue gas
NOXContent, this method is using burner hearth or back-end ductwork as reactor.
Existing SNCR denitration technology has the following disadvantages：Strict to temperature requirement, temperature is too low, NOXConversion ratio is low；Temperature
Spend height, NH3Then it is oxidized easily as NOX, counteract NOxRemoval efficiency；Gas phase reaction is difficult to ensure that sufficient mixing, ammonia
Liquid consumption is big, NH3/NOxMol ratio is high；The also more difficult control of denitrfying agent mixability；Because component of refuse is uncertain, during burning
The NO of generationxConcentration dipping and heaving is larger, and current denitrating system is difficult to NO in time to fluctuationxAppropriate reply is made in change,
Cause reducing agent not enough or excessive.
Utility model content
The purpose of this utility model is to provide a kind of, system fortune smaller to the normal influence on system operation of Domestic refuse incinerator
Row resistance is small, system operation does not have the pollutant of any solid or liquid, non-secondary pollution generation be used for house refuse
The SNCR flue gas denitrification systems of incinerator.
The purpose of this utility model can be achieved through the following technical solutions：
A kind of SNCR flue gas denitrification systems for domestic waste incineration, including urea liquid preparation unit, urea are molten
Liquid storage element, urea liquid dilution unit, static mixer, mixed allocation unit, gas distribution member, urea liquid spray
Penetrate unit；
The urea liquid preparation unit includes the bucket elevator being delivered to solid urea particle in urea liquid preparation tank,
Agitator is provided with urea liquid preparation tank；Urea liquid preparation tank is provided with temperature transmitter one and preparation tank liquid level gauge；Urine
Steam is communicated with by steam pipe line in plain solution preparation tank, the road steam pipe line is provided with switch valve one；It is prepared by urea liquid
Demineralized water is communicated with by desalination water pipeline in tank, the desalination water pipeline is provided with switch valve three；
The urea liquid storage element includes urea liquid conservation tank, and urea liquid conservation tank is provided with conservation tank liquid level
Steam is communicated with by steam pipe line in meter and temperature transmitter two, urea liquid conservation tank, the road steam pipe line is provided with and opened
Close valve two；Urea liquid conservation tank bottom is connected with metering conveying pump, and metering conveying pump is distinguished by two-way urea liquid pipeline
Urea liquid conservation tank and static mixer are connected to, is set wherein being connected on the urea liquid pipeline of urea liquid conservation tank
There is safety valve；
The urea liquid preparation tank bottom is communicated to urea liquid conservation tank top by transporting pump；
The urea liquid dilution unit includes dilution water pot；Dilution water pot is communicated with demineralized water by desalination water pipeline,
The desalination water pipeline is provided with switch valve four；Water pot is diluted provided with dilution water pot liquid level gauge；Dilution water pot bottom is connected with dilute
Water pump is released, dilution water pump is respectively connecting to dilution water pot and static mixer by two-way desalination water pipeline, wherein being connected to
The desalination water pipeline for diluting water pot is provided with counterbalance valve；
The static mixer is sequentially connected mixed allocation unit by solution mixing line and urea liquid injection is single
Member；External compression air is sequentially connected gas distribution member and urea liquid injection unit by compressed-air line；
Wherein, urea liquid injection unit includes spray gun, and spray gun is stretched in waste heat boiler.
The beneficial effects of the utility model：The utility model realizes the different operation works of the different waste incinerators of reply
Condition, is made and dealing carefully with time, substantially reduce operating cost, it is to avoid reducing agent is wasted and pollutant process shape not up to standard
Condition, it is ensured that the stable operation of waste incinerator；The waste of human resources is reduced, operation expense is reduced.
Brief description of the drawings
For the ease of it will be appreciated by those skilled in the art that being further described below in conjunction with the accompanying drawings to the utility model.
Fig. 1 is a kind of SNCR flue gas denitrification system schematic diagrames for domestic waste incineration of the utility model；
Fig. 2 is the utility model static mixer schematic diagram；
Fig. 3 is the utility model mixed allocation cell schematics；
Fig. 4 is the utility model gas distribution member schematic diagram；
In figure：1. bucket elevator, 2. urea liquid preparation tanks, 2-1. agitators, 2-2. preparation tank liquid level gauges, 2-3. temperature becomes
Send device one, 3. urea liquid pipelines, 3-1. safety valves, 4. transhipment pumps, 5. steam pipe lines, 5-1. switch valves one, 5-2. switch valves
Two, 6. urea liquid conservation tanks, 6-1. conservation tank liquid level gauges, 6-2. temperature transmitters two, 7. metering conveying pumps, 8. dilution waters
Tank, 8-1. dilution water pot liquid level gauges, 9. desalination water pipelines, 9-1. switch valves three, 9-2. switch valves four, 9-3. counterbalance valves, 10. is dilute
Release water pump, 11. static mixers, 12. solution mixing lines, 13. mixed allocation units, 14. gas distribution members, 15. pressures
Contracting air line, 16. spray guns, 17. waste heat boilers.
Embodiment
The utility model is described further with specific implementation case below in conjunction with the accompanying drawings.
As shown in figure 1, being a kind of connection of SNCR flue gas denitrification systems for domestic waste incineration of the utility model
Schematic diagram and workflow diagram；The flue gas denitrification system includes：Urea liquid preparation unit, urea liquid storage element, urea
Solution dilution unit, static mixer, mixed allocation unit, gas distribution member, urea liquid injection unit and automatic
Control unit.
Urea liquid preparation unit includes the bucket elevator 1 positioned at the side of urea liquid preparation tank 2, and bucket elevator 1 urinates solid
Crude granule is delivered in urea liquid preparation tank 2, and agitator 2-1 is provided with urea liquid preparation tank 2；Urea liquid preparation tank 2
Provided with the 2-3 of temperature transmitter one and preparation tank liquid level gauge 2-2；Steaming is communicated with by steam pipe line 5 in urea liquid preparation tank 2
Vapour, the road steam pipe line is provided with the 5-1 of switch valve one；Desalination is communicated with by desalination water pipeline 9 in urea liquid preparation tank 2
Water, the desalination water pipeline is provided with the 9-1 of switch valve three；
Urea liquid storage element includes urea liquid conservation tank 6, and urea liquid conservation tank 6 is provided with conservation tank liquid level gauge
Steam is communicated with by steam pipe line 5 in the 6-1 and 6-2 of temperature transmitter two, urea liquid conservation tank 6, on the road steam pipe line
Provided with the 5-2 of switch valve two；The bottom of urea liquid conservation tank 6 is connected with metering conveying pump 7, and metering conveying pump 7 passes through two-way urea
Solution pipeline is respectively connecting to urea liquid conservation tank 6 and static mixer 11, wherein being connected to urea liquid conservation tank
Urea liquid pipeline is provided with safety valve 3-1；
The bottom of urea liquid preparation tank 2 is communicated to the top of urea liquid conservation tank 6 by transporting pump 4；
Urea liquid dilution unit includes dilution water pot 8；Dilution water pot 8 is communicated with demineralized water by desalination water pipeline 9, should
Desalination water pipeline is provided with the 9-2 of switch valve four；Water pot 8 is diluted provided with dilution water pot liquid level gauge 8-1；The bottom of water pot 8 is diluted to connect
Dilution water pump 10 is connected to, dilution water pump 10 is respectively connecting to dilution water pot 8 and static mixer by two-way desalination water pipeline
11, wherein the desalination water pipeline for being connected to dilution water pot is provided with counterbalance valve 9-3；
Static mixer 11 is sequentially connected mixed allocation unit 13 by solution mixing line 12 and sprayed with urea liquid
Unit；External compression air is sequentially connected gas distribution member 14 and urea liquid injection unit by compressed-air line 15；
Wherein, urea liquid injection unit includes spray gun 16, and spray gun 16 is stretched in waste heat boiler 17；
As shown in Fig. 2 static mixer 11 includes the first control cabinet 111, urea liquid pipeline 112, dilution water pipe
Line 113 and mixing line 119；Wherein, urea liquid pipeline 112 is respectively equipped with urea tube collimation method with dilution water pipeline 113 one end
Blue 112-1, dilution water underwater flange 113-1, the other end are stretched into control cabinet 111；The one end of mixing line 119 is provided with mixing
Underwater flange 119-1, the other end stretch into control cabinet 111 in, and with the urea liquid pipeline in switch board body, dilution water pipeline
Connection；
Wherein, ball valve 1, mistake are sequentially provided with along liquid flow path direction on the urea liquid pipeline in control cabinet 111
Filter 115；Positioned at control cabinet 111 in dilution water pipeline on along liquid flow path direction be sequentially provided with ball valve 1, filter 115,
Pneumatic on-off valve 116, electromagnetic flowmeter 117, regulating valve 118；Along liquid flow path direction in the mixing line in control cabinet 111
It is sequentially provided with static mixer 1110, check-valves 1111, ball valve 2 1112；
As shown in figure 3, mixed allocation unit 13 includes the second control cabinet 31, urea liquid pipeline 32, mixing line 39；
The one end of urea liquid pipeline 32 is arranged in cabinet, and the other end is located at outside cabinet and is provided with urea lines flange 32-1；It is multiple
The one end of (four) mixing line 39 be arranged on cabinet in and connected with urea liquid pipeline 32, multiple mixing lines 39 it is another
One end is provided with mixing line flange 39-1；
Wherein, the first ball valve 33, filter are sequentially provided with along liquid flow path direction on the urea liquid pipeline 32 in cabinet
34th, pneumatic on-off valve 35, regulating valve 36, electromagnetic flowmeter 37, check-valves 38；Edge in multiple mixing lines 39 in cabinet
Liquid flow path direction is sequentially provided with the second ball valve 310, suspended body flowmeter 311；
As shown in figure 4, gas distribution member 14 includes the 3rd control cabinet 41, compressed-air line 42, mixing line 46；
The one end of compressed-air line 42 is arranged in cabinet, and the other end is located at outside cabinet and is provided with air line flange 42-1；It is multiple
The one end of (two) mixing line 46 be arranged on cabinet in and connected with compressed-air line 42, multiple mixing lines 46 it is another
One end is provided with mixing line flange 46-1；
Wherein, the first ball valve 43, filter are sequentially provided with along airflow direction on the compressed-air line 42 in cabinet
44th, pneumatic on-off valve 45；In multiple mixing lines 46 in cabinet the second ball valve 47, pressure regulation are sequentially provided with along airflow direction
Valve 48, check-valves 49；
PLC control unit is artificial PLC Siemens S7-300, PROFIBUS distribution I/O, bus communication；Automatically
Control, manage, coordinate and monitor all process functions；Communicated with head factory DCS, receive the signal from head factory, it is accurate to calculate note
Enter amount, fixed point provides reduction dosage, communicated with operation interface.Normal operation mode is full automatic, it means that SNCR systems
It need not manually control, control can also be run in a manual mode, it means that operating personnel manually control from operation terminal
All systems；
Urea liquid preparation unit is connected with PLC control unit, realizes remote auto control, remote opening addition desalination
The functions such as water, stirring, heating, transhipment；Mixed allocation unit is connected with PLC control unit, can be achieved to automatically control, and changes urea
Solution usage amount；, urea liquid dilution unit be connected with PLC control unit, automatically save the water of desalination water pot；Urea liquid
It can change with demineralized water proportioning, liquid inventory, gas-water ratio etc. in control interface, it is succinct convenient, it is quick to understand, it is easy to grasp
Make；Interlocked with DCS, online proportioning regulation is injected to the concentration of urea liquid in burner hearth；
Urea liquid injection unit uses the special two fluid-types atomizing lance of denitration；Material is SS310, and pipette tips part is spy
Different material alloy, with extremely strong high-temperature-resistant and anti-corrosion ability；By high-voltage flexible flexible pipe respectively with mixed allocation unit and pressure
The pipeline of contracting air distribution unit is connected, and whole spray gun sleeve pipe is fixed on boiler water wall fin keel, and spray gun passes through fast with sleeve pipe
Speed plug joint connection, is easy to the service condition of quick inspection shower nozzle.The spray gun of urea liquid injection unit is arranged in burner hearth
Front wall and/or left and right wall, urea liquid is sprayed into burner hearth, makes flue gas with reducing agent in 950-1050 DEG C of hair of suitable temperature ranges
Raw reduction reaction.The urea liquid sprayed into burner hearth can be according to nitrous oxides concentration, exhaust gas volumn, burner hearth flue gas in tail flue gas
Temperature and incinerator evaporation capacity adjust its concentration and flow in real time, are automatically controlled by automatic control unit.
Utility model works mode：The 9-1 of switch valve three of brine line 9 is first discharged from into urea liquid preparation tank 2, is arrived
Preparation tank liquid level gauge 2-2 feedback signals after up to setting liquid level, the 9-1 of closing switch valve three opens the 5-1 of switch valve one of steam pipe line 5,
Heating is carried out to the demineralized water in urea liquid preparation tank 2 and treats that to design temperature the 2-3 feedback signals of temperature transmitter one are closed and opened
Close valve one 5-1, turn on agitator 2-1；
Solid urea particle needed for proportioning is transported in urea liquid preparation tank 2 by bucket elevator 1, is closed after being sufficiently stirred for
Close agitator 2-1；Transhipment pump 4 is opened, urea liquid is delivered in urea liquid conservation tank 6 by urea liquid pipeline 3, if urine
Plain solution temperature is low, and the 5-2 of the switch valve two progress heating for opening steam pipe line 5 treats that to design temperature the 6-2 of temperature transmitter two is anti-
The 5-2 of feedback signal closing switch valve two；The 9-2 of switch valve four of desalination water pipeline 9 on dilution water pot 8 is opened, is reached after setting liquid level
Dilute water pot liquid level gauge 8-1 feedback signals, the 9-2 of closing switch valve four；
Quantitative urea liquid is delivered to static mixer 11 by metering conveying pump 7, and unnecessary urea liquid passes through peace
Full valve 3-1 is returned in urea liquid conservation tank 6；Demineralized water is delivered to static mixer 11 by dilution water pump 10, and unnecessary removes
Salt solution is returned in dilution water pot 8 by counterbalance valve 9-3；Urea liquid after matching dilution through static mixer 11 passes through solution
Mixing line 12 is delivered to mixed allocation unit 13, metering distribution is then carried out in mixed allocation unit 13, it is ensured that to every
Spray gun 16 provides the urea liquid of equivalent；
Compressed air carries out metering distribution in gas distribution member 14, is ensured by compressed-air line 15 to every spray
Rifle 16 provides the pressure lost motion power of abundance, it is ensured that the urea liquid being injected in waste heat boiler 17 is necessary for being atomized shape；
Embodiment：First according to the size of preparation tank, calculate prepare demineralized water water required for 40% urea liquid and
Urea total amount；Add the demineralized water of appropriate height into preparation tank first according to amount of calculation, then tank interior solution is carried out
More than 40 DEG C are heated to, by manually putting into solid urea particle in bucket elevator, stirring motor is opened, stops after condition is met
Only plus urea；It is configured to the urea liquid that concentration is 40%；Treat after the completion of urea liquid configuration, transporting pump by urea liquid will make
Urea in standby tank, which is transported in urea storage tank, to be stored, and stable urea liquid supply is provided for dilution system；
Because the volume of urea liquid holding vessel is generally large and the volume of preparation tank is smaller, typically repeatedly filled,
System detects preparation tank and the liquid level of holding vessel simultaneously in filling process, automatic to close when holding vessel liquid level is higher than higher limit
Close urea liquid holding vessel transhipment pump；
By the urea liquid in conservation tank by the quantitative pressurized delivered of measuring pump to urea liquid static mixer, and with
Proportioning dilution is carried out by demineralized water of the urea liquid dilution unit delivery pump pressurized delivered into static mixer, according to being
NO in system on-line monitoring feedback flue gasXContent, adjusts the concentration for being injected to urea liquid in burner hearth in real time；Through static mixing
The urea liquid that unit has been matched, is first transported in the mixed allocation unit of boiler platform, then leads in this mixed cell
Valve, flowmeter, pressure gauge and Valve controlling are overregulated, metering distribution is carried out, it is ensured that the urine of equivalent is provided to every injection unit
Plain solution；Compressed air allocation unit is arranged and boiler platform nearby, to ensure the minimum delay of denitrating system control.Ensure every
Air supply needed for spray gun atomization；Its slurry line exported with mixed allocation unit is to be mutually matched, for ease of flue gas
In NOXWith urea liquid can sufficient reduction reaction, the urea liquid being injected in burner hearth is necessary for being atomized shape.
The utility model principle：The flue gas denitrification system is under conditions of without using catalyst, using burner hearth as reactor, will
It is 850-1150 DEG C of region that urea liquid, which sprays into boiler hearth temperature, and reducing agent rapid thermal decomposition is into NH3, with the NO in flue gasX
Reaction generation N2And H2O。
The urea liquid of concentration according to needed for field working conditions service condition can be prepared at any time, and conveyed rapidly by transporting pump
To conservation tank unit, it is easy to denitrating system to use；Urea liquid in urea liquid storage element is quantified by measuring pump
Pressurized delivered is to static mixer；Demineralized water in urea liquid dilution unit passes through delivery pump pressurized delivered to static mixing
In unit, carrier is provided for on-line dilution, the NO in feedback flue gas is monitored on-line according to systemXContent, adjusts penetrating in real time
The concentration of urea liquid in burner hearth；The urea liquid matched through static mixer, is first transported to the mixed of boiler platform
Close in allocation unit, metering distribution is then carried out in this mixed cell, it is ensured that the urea of equivalent is provided to every injection unit
Solution；Compressed air allocation unit arranges and boiler platform that the slurry line exported with mixed cell is equal proportion configuration nearby,
Atomization for injection unit urea liquid provides power；
The utility model main feature is as follows：
1) good economy performance, without catalyst；
2) cost of investment and operating cost are low；
3) floor space is small (not needing extra reactor, reaction is carried out in stove)；
4) simple system, the preparation module (urine that the equipment setting of existing boiler need not be changed, only need to increase reducing agent
Plain technique), memory module, dilution metering module, distribution jet module；
5) system operation resistance is small, smaller to the normal influence on system operation of boiler；
6) denitration effect is more obvious, and 30%-50% NO can be reached on large-scale residual heat boiler by applyingXRemoval efficiency；
50%-70% NO can be reached on middle-size and small-size waste heat boilerXRemoval efficiency；
7) reducing agent is various is easy to get, and removes NOxReducing agent be typically all nitrogenous material, including ammonia, urea and various
Ammonium salt, most widely used is ammoniacal liquor and urea；
8) engineering time is short, easy to implement；
9) it is a kind of economical and practical denitration technology, is adapted to the national conditions of China.
Above content is only to the utility model structure example and explanation, the technology people of affiliated the art
Member is made various modifications or supplement to described specific embodiment or substituted using similar mode, without departing from reality
With new structure or surmount scope defined in the claims, protection domain of the present utility model all should be belonged to.
Claims (1)
1. a kind of SNCR flue gas denitrification systems for domestic waste incineration, including urea liquid preparation unit, urea liquid
Storage element, urea liquid dilution unit, static mixer, mixed allocation unit, gas distribution member, urea liquid injection
Unit, it is characterised in that：
The urea liquid preparation unit includes the bucket elevator being delivered to solid urea particle in urea liquid preparation tank (2)
(1) agitator (2-1), is provided with urea liquid preparation tank (2)；Urea liquid preparation tank (2) is provided with (2- of temperature transmitter one
3) with preparation tank liquid level gauge (2-2)；Steam is communicated with by steam pipe line (5) in urea liquid preparation tank (2), the road steam pipe
Line is provided with switch valve one (5-1)；Demineralized water is communicated with by desalination water pipeline (9) in urea liquid preparation tank (2), the desalination
Water pipeline is provided with switch valve three (9-1)；
The urea liquid storage element includes urea liquid conservation tank (6), and urea liquid conservation tank (6) is provided with conservation tank liquid
Steam is communicated with by steam pipe line (5) in position meter (6-1) and temperature transmitter two (6-2), urea liquid conservation tank (6), should
Road steam pipe line is provided with switch valve two (5-2)；Urea liquid conservation tank (6) bottom is connected with metering conveying pump (7), measures defeated
Pump (7) is sent to be respectively connecting to urea liquid conservation tank (6) and static mixer (11) by two-way urea liquid pipeline, wherein
The urea liquid pipeline for being connected to urea liquid conservation tank is provided with safety valve (3-1)；
Urea liquid preparation tank (2) bottom is communicated to urea liquid conservation tank (6) top by transporting pump (4)；
The urea liquid dilution unit includes dilution water pot (8)；Dilution water pot (8) is communicated with by desalination water pipeline (9) to be removed
Salt solution, the desalination water pipeline is provided with switch valve four (9-2)；Water pot (8) is diluted provided with dilution water pot liquid level gauge (8-1)；It is dilute
Release water pot (8) bottom and be connected with dilution water pump (10), dilution water pump (10) is respectively connecting to dilution by two-way desalination water pipeline
Water pot (8) and static mixer (11), wherein the desalination water pipeline for being connected to dilution water pot is provided with counterbalance valve (9-3)；
The static mixer (11) is sequentially connected mixed allocation unit 13 and urea liquid by solution mixing line (12)
Injection unit；External compression air is sequentially connected gas distribution member 14 by compressed-air line (15) and sprayed with urea liquid
Unit；
Wherein, urea liquid injection unit includes spray gun (16), and spray gun (16) is stretched in waste heat boiler (17).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720251348.7U CN206613372U (en) | 2017-03-15 | 2017-03-15 | A kind of SNCR flue gas denitrification systems for domestic waste incineration |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720251348.7U CN206613372U (en) | 2017-03-15 | 2017-03-15 | A kind of SNCR flue gas denitrification systems for domestic waste incineration |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206613372U true CN206613372U (en) | 2017-11-07 |
Family
ID=60232586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720251348.7U Expired - Fee Related CN206613372U (en) | 2017-03-15 | 2017-03-15 | A kind of SNCR flue gas denitrification systems for domestic waste incineration |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206613372U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108458330A (en) * | 2018-02-28 | 2018-08-28 | 中国天辰工程有限公司 | A kind of high-temperature flue gas waste heat recycling system |
-
2017
- 2017-03-15 CN CN201720251348.7U patent/CN206613372U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108458330A (en) * | 2018-02-28 | 2018-08-28 | 中国天辰工程有限公司 | A kind of high-temperature flue gas waste heat recycling system |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106807206A (en) | A kind of SNCR flue gas denitrification systems for domestic waste incineration | |
| CN103691293B (en) | A kind of SNCR and SCR mixing denitrating system | |
| CN203899439U (en) | Novel SNCR (selective non-catalytic reduction) denitration system | |
| CN204017667U (en) | A kind of Novel SCR denitrating system | |
| PL184600B1 (en) | Exhaust gas purification and waste heat recuperation system | |
| CN207324466U (en) | A kind of Hazards in Power Plant minimum discharge denitrating system | |
| CN107789967B (en) | Sintering flue gas low-temperature denitration device and implementation method thereof | |
| CN111744362A (en) | Ceramic industry comprehensive flue gas cooperative treatment system | |
| CN204973521U (en) | SNCR+SCR unites denitrification facility | |
| CN206613372U (en) | A kind of SNCR flue gas denitrification systems for domestic waste incineration | |
| CN203342646U (en) | Fluidized bed boiler flue gas denitrating device adopting urea hydrolysis SNCR (selective non-catalytic reduction) | |
| CN108261905A (en) | A kind of denitration integrated device and method | |
| CN209348406U (en) | A kind of heating of kiln system and nitrous oxides concentration control device during only expecting | |
| CN102698587A (en) | Cement plant flue gas denitration intelligent control system based on SNCR (Selective Non Catalytic Reduction) method | |
| CN207680333U (en) | Urea direct-injection SNCR+SCR flue gas denitrification systems | |
| CN205412683U (en) | Cement kiln SCR flue gas denitration reductant gasification / mixture integrated device | |
| CN204513432U (en) | A kind of incinerator smoke denitration in the stove wet desulphurization device | |
| CN210356681U (en) | Dry-method denitration device applied to hazardous waste incineration system | |
| CN208449035U (en) | A kind of SNCR denitration system | |
| CN103301737A (en) | Urea hydrolyzed SNCR (selective non-catalytic reduction) flue gas denitrification device for fluidized bed boiler | |
| CN208177211U (en) | A kind of denitration integrated device | |
| CN206526672U (en) | Chain furnace composite denitration equipment | |
| CN206935086U (en) | A kind of efficient oxidizing and denitrating ozone device | |
| CN205948653U (en) | Sled dress formula flue gas denitration device | |
| CN205627629U (en) | Low temperature catalysis SOx/NOx control ozone mixes linkage reaction unit with flue gas |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20180813 Granted publication date: 20171107 |
|
| PP01 | Preservation of patent right | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20210813 Granted publication date: 20171107 |
|
| PD01 | Discharge of preservation of patent | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171107 Termination date: 20210315 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |