CN108014642A - Urea pyrolysis and wide load denitrification integrated device - Google Patents
Urea pyrolysis and wide load denitrification integrated device Download PDFInfo
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- CN108014642A CN108014642A CN201710932766.7A CN201710932766A CN108014642A CN 108014642 A CN108014642 A CN 108014642A CN 201710932766 A CN201710932766 A CN 201710932766A CN 108014642 A CN108014642 A CN 108014642A
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- 238000000197 pyrolysis Methods 0.000 title claims abstract description 75
- XSQUKJJJFZCRTK-UHFFFAOYSA-N Urea Chemical compound NC(N)=O XSQUKJJJFZCRTK-UHFFFAOYSA-N 0.000 title claims abstract description 60
- 239000004202 carbamide Substances 0.000 title claims abstract description 60
- 239000012634 fragment Substances 0.000 claims abstract description 17
- 230000000694 effects Effects 0.000 claims abstract description 10
- 239000007789 gas Substances 0.000 claims description 26
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 20
- 239000003546 flue gas Substances 0.000 claims description 20
- 239000012895 dilution Substances 0.000 claims description 8
- 238000010790 dilution Methods 0.000 claims description 8
- 230000008676 import Effects 0.000 claims description 6
- 238000010248 power generation Methods 0.000 claims description 6
- 230000009471 action Effects 0.000 claims description 4
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 claims description 3
- 238000012546 transfer Methods 0.000 claims description 3
- 238000013459 approach Methods 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 26
- 238000000034 method Methods 0.000 description 8
- 230000007547 defect Effects 0.000 description 5
- 230000007812 deficiency Effects 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- 230000008859 change Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000003916 acid precipitation Methods 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 239000003638 chemical reducing agent Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010438 heat treatment Methods 0.000 description 2
- 206010022000 influenza Diseases 0.000 description 2
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011982 device technology Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000004069 differentiation Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000004071 soot Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/90—Injecting reactants
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8621—Removing nitrogen compounds
- B01D53/8625—Nitrogen oxides
- B01D53/8631—Processes characterised by a specific device
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2251/00—Reactants
- B01D2251/20—Reductants
- B01D2251/206—Ammonium compounds
- B01D2251/2067—Urea
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
Landscapes
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Treating Waste Gases (AREA)
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
Abstract
Urea pyrolysis of the present invention and wide load denitrification integrated device are related to boiler technology field.Using " being integrally formed by urea pyrolysis with gas bypass " key technology, its boiler, reversal chamber, flue, which is fixedly connected, forms an entirety, the upper end fragment position of its reversal chamber, A valves, heat exchanger, suction ventilator, E valves, the front end fragment position of flue is fixedly connected by pipeline, its C valve, D valves, first threeway input end and side outlet end, the arrival end of heat exchanger interior tracheae is fixedly connected by pipeline, the port of export of its heat exchanger interior tracheae, the straight-through end of two of second threeway, heater, pyrolysis oven, the rear end fragment position of flue is fixedly connected by pipeline, the straight-through port of export of its first threeway, B valves, the side entrance end of second threeway is fixedly connected by pipeline.For urea pyrolysis and wide load denitration.Simple and ingenious structure, effect stability are reliable, easily make and cost is low.
Description
Technical field
Urea pyrolysis of the present invention and wide load denitrification integrated device, are related to boiler technology field；Urinated more particularly to boiler
Element pyrolysis and wide load denitrification integrated device technical field.
Background technology
Thermal power generation unit has gas gas in the stove based on flue gas heater technical flow to change in urea pyrolysis technology at present
Hot device technology, have in wide load denitration mainstream technology high-temperature flue gas bypass connect to draw method, which is required in boiler height
Warm smoke-gas area perforate and job position is essentially identical, so two kinds of technologies can not be at the same time same due to job position conflict
Realized on platform boiler.So existing known technology is obvious with deficiency, defect and drawback existing for present situation.Based on hair
The professional knowledge of a person of good sense and working experience and the unremitting pursuit to cause, have in conscientiously investigation, analysis, understanding, summary, research
On the basis of known technology and present situation, spy takes " being integrally formed by urea pyrolysis with gas bypass " key technology, succeeds in developing
The new equipment of " urea pyrolysis and wide load denitrification integrated device ".The present invention's succeeds in developing, and effectively solves existing public affairs
Know technology and deficiency, defect and drawback existing for present situation, effectively raise the technical merit of the industry.
The content of the invention
The present invention takes " being integrally formed by urea pyrolysis with gas bypass " key technology, its boiler, reversal chamber, flue are solid
Surely an entirety, the upper end fragment position of its reversal chamber, A valves, heat exchanger, suction ventilator, E valves, the front end section of flue are connected and composed
Put and be fixedly connected by pipeline, its C valve, D valves, first threeway input end and side outlet end, the arrival end of heat exchanger interior tracheae
Be fixedly connected by pipeline, the port of export of its heat exchanger interior tracheae, two of second threeway straight-through ends, heater, pyrolysis oven,
The rear end fragment position of flue is fixedly connected by pipeline, the straight-through port of export of its first threeway, B valves, the side of second threeway
It is fixedly connected to arrival end by pipeline.
It is by the purpose of the invention reached：1., the present invention take " being integrally formed by urea pyrolysis with gas bypass " close
Key technology, there is provided the new equipment of " urea pyrolysis and wide load denitrification integrated device ".2., the present invention take " by urea heat
Solution is integrally formed with gas bypass " key technology, solve the problems, such as that two kinds of technologies are difficult to while are used on a unit, together
When urea pyrolysis flue gas air passage and SCR bypass flues are combined into one, avoid repeated construction, reduce cost of investment；
By taking separate unit 300MW units as an example, single unit investment can reduce by 3,000,000 yuan or so.The present invention can ensure thermal power generation unit
It can be connect at the same time using high-temperature flue gas bypass and draw method and flue gas urea pyrolysis method, the out of stock operations of boiler SCR can be widened
Load setting, while ensure that SCR reducing agents urea can use flue gas method, avoids existing known technology and present situation
High operating cost.3., behind the out of stock operating load sections of present invention broadening boiler SCR, boiler can be made when compared with underload（Very
To be grid-connected when）SCR reactors can be put into, so as to reduce NOXDischarge, reduce acid rain occurrence probability, possess very well
Environmental protection and social benefit.4., ingenious, the easy to use and effect stability scientific and reasonable for structure and simple of the present invention it is reliable, easily
In make with use and cost of manufacture and operation cost it is low, with science, advance, accuracy, representativeness, practicality.
5., the present invention solve existing for existing known technology and present situation deficiency, defect and drawback.6., the present invention succeed in developing, have
The technical merit for having brought up to the industry of effect, can wide popularization and application.
To achieve the above object, technical solution provided by the invention is：
A kind of urea pyrolysis and wide load denitrification integrated device, by A valves, heat exchanger, B valves, heater, pyrolysis oven, C valves, D
Valve, E valves, suction ventilator, flue, boiler, reversal chamber are formed；
The urea pyrolysis and wide load denitrification integrated device, it is whole that its boiler, reversal chamber, flue are fixedly connected with composition one
Body, upper end fragment position, A valves, heat exchanger, suction ventilator, E valves, the front end fragment position of flue of its reversal chamber are fixed by pipeline and connected
Connecing, its C valve, D valves, first threeway input end and side outlet end, the arrival end of heat exchanger interior tracheae are fixedly connected by pipeline,
The port of export of its heat exchanger interior tracheae, two of second threeway straight-through ends, heater, pyrolysis oven, the rear end fragment positions of flue
It is fixedly connected by pipeline, the straight-through port of export of its first threeway, B valves, the side entrance end of second threeway are by pipeline
It is fixedly connected.
The urea pyrolysis and wide load denitrification integrated device, the A valves are the heat exchanger to be exchanged heat in a manner of gas gas
The flapper valve of the heat-resisting material of import, for the heat exchanger to be provided with the structure of tracheae in housing, the B valves are cold wind tune
The electronic adjustment valve of bypass is saved, for the heater to be provided with the electric heater of resistance wire in housing, the pyrolysis oven is housing
The structure of nozzle is inside provided with, the C valves dilute the pneumatic Shuttoff Valve of wind for import, and the D valves dilute the electronic of wind for mouth
Valve is adjusted, the E valves are the outlet damper valve of heat exchanger, and the suction ventilator is frequency conversion fan, and the flue is justified for selection
A kind of structure in shape structure, polygonized structure, the boiler are the boiler for power generation, and the reversal chamber is denitration entrance cigarette
A kind of structure in road and selection circular configuration, polygonized structure.
The urea pyrolysis and wide load denitrification integrated device, the A valves, heat exchanger, suction ventilator, the common structure of E valves
Into gas bypass device.
The urea pyrolysis and wide load denitrification integrated device, the heat exchanger, B valves, heater, pyrolysis oven, C
Valve, D valves collectively form urea pyrolysis device.
The urea pyrolysis and wide load denitrification integrated device, the heat exchanger is in the urea pyrolysis and wide load
In denitrification integrated device, belong to the shared device of the gas bypass device and the urea pyrolysis device, it is described to change
Hot device role is the effect for passing through flue gas and gives the heat transfer extracted in flue gas to dilution wind action.
The present invention operation principle and the course of work be：As shown in Figure of description 1, operation principle of the invention and work
Process is extremely simple to be understood, the present invention has given full play to the work of " being integrally formed by urea pyrolysis with gas bypass " key technology
With.In the urea pyrolysis and wide load denitrification integrated device, the A valves 1, heat exchanger 2, suction ventilator 9, E valves 8 are common
Gas bypass device is formed, when the temperature of flue 10 is less than 320 DEG C, A valves 1, heat exchanger 2, suction ventilator 9, E valves 8 are opened entirely, and
Control the flow of suction ventilator 9 will height；When the temperature of flue 10 is higher than 320 DEG C, A valves 1, heat exchanger 2, suction ventilator 9, E valves 8 are also complete
Open, and control the flow of suction ventilator 9 low.It is described to change in the urea pyrolysis and wide load denitrification integrated device
Hot device 2, B valves 3, heater 4, pyrolysis oven 5, C valves 6, D valves 7 collectively form urea pyrolysis device, in the urea pyrolysis device
In, 2 role of heat exchanger is the effect to dilution wind heating；In the urea pyrolysis device, for B valves 3 just
Be dilute wind by heat exchanger 2 temperature it is high, turn on B valves 3, dilution wind by heat exchanger 2 temperature it is low, be shut off B
Valve 3；In the urea pyrolysis device, for heater 4, if dilution wind still reached to after heat exchanger 2 less than
The requirement of temperature, just start heater 4, if dilution wind reached by heat exchanger 2 after temperature requirement, if do not start add
Hot device 4.In the urea pyrolysis and wide load denitrification integrated device, heat exchanger 2 belongs to gas bypass device and urea
The shared device of pyrolysis installation, 2 role of heat exchanger are the effect for passing through flue gas and the heat that will be extracted in flue gas
Amount passes to dilution wind action.Design is scientific and reasonable by the present invention, simple and ingenious structure, is easy to low manufacture cost, uses effect
Fruit is reliable and stable, solves existing known technology and deficiency, defect and drawback existing for present situation, has effectively brought up to the industry
Technical merit.
As a result of technical solution provided by the present invention；Since this invention takes " by urea pyrolysis and flue gas
Road is integrally formed " key technology；Due to described in the operation principle and the course of work of the present invention；Due to its boiler of the invention, turn to
Room, flue are fixedly connected forms an entirety, the upper end fragment position of its reversal chamber, A valves, heat exchanger, suction ventilator, E valves, flue
Front end fragment position is fixedly connected by pipeline, its C valve, D valves, first threeway input end and side outlet end, heat exchanger interior tracheae
Arrival end be fixedly connected by pipeline, the port of export of its heat exchanger interior tracheae, two of second threeway straight-through ends, heating
Device, pyrolysis oven, the rear end fragment position of flue are fixedly connected by pipeline, the straight-through port of export of its first threeway, B valves, second
The side entrance end of a threeway is fixedly connected by pipeline.So that it is of the invention with existing known technology compared with present situation, acquisition
Beneficial effect is：
1st, the present invention takes " being integrally formed by urea pyrolysis with gas bypass " key technology, so as to provide " urea pyrolysis and
The new equipment of wide load denitrification integrated device ".
2nd, the present invention takes " being integrally formed by urea pyrolysis with gas bypass " key technology, solves two kinds of technologies and is difficult to
At the same time used on a unit the problem of, while urea pyrolysis flue gas air passage and SCR bypass flues are combined into one, kept away
Exempt from repeated construction, reduce cost of investment；By taking separate unit 300MW units as an example, investment can reduce by 3,000,000 yuan or so.
3rd, the present invention can ensure that thermal power generation unit can be connect using high-temperature flue gas bypass at the same time and be drawn method and flue gas
Urea pyrolysis method, can widen the out of stock operating load sections of boiler SCR, while ensure that SCR reducing agents urea can use
Flue gas method, avoids the high operating cost of existing known technology and present situation.
4th, behind operating load section out of stock present invention broadening boiler SCR, boiler can be made when compared with underload（Even
When grid-connected）SCR reactors can be put into, so as to reduce NOXDischarge, reduce acid rain occurrence probability, possess good ring
Guarantor and social benefit.
5th, scientific and reasonable for structure and simple ingenious, easy to use and effect stability of the invention is reliable, easy to make with making
With and cost of manufacture and operation cost it is low, have science, advance, accuracy, representativeness, practicality.
6th, the present invention solves the deficiency, defect and drawback of existing known technology and present situation.
7th, the present invention has effectively improved industry technical merit, can wide popularization and application.
Brief description of the drawings
Fig. 1 is the schematic diagram of the specific embodiment of the invention.
Label in figure：1st, A valves, 2, heat exchanger, 3, B valves, 4, heater, 5, pyrolysis oven, 6, C valves, 7, D valves, 8, E valves,
9th, suction ventilator, 10, flue .11, boiler, 12, reversal chamber.
Embodiment
With reference to Figure of description, the present invention is described in detail.As shown in Figure of description 1：
A kind of urea pyrolysis and wide load denitrification integrated device, by A valves 1, heat exchanger 2, B valves 3, heater 4, pyrolysis oven 5, C
Valve 6, D valves 7, E valves 8, suction ventilator 9, flue 10, boiler 11, reversal chamber 12 are formed；
The urea pyrolysis and wide load denitrification integrated device, its boiler 11, reversal chamber 12, flue 10 are fixedly connected with composition one
A entirety, upper end fragment position, A valves 1, heat exchanger 2, suction ventilator 9, E valves 8, the front end fragment position of flue 10 of its reversal chamber 12 are equal
It is fixedly connected by pipeline, its C valve 6,7, first threeway input ends of D valves and side outlet end, the arrival end of 2 interior tracheae of heat exchanger are equal
It is fixedly connected by pipeline, the port of export of its 2 interior tracheae of heat exchanger, two of second threeway straight-through ends, heater 4, pyrolysis ovens
5th, the rear end fragment position of flue 10 is fixedly connected by pipeline, 3, second threeways of the straight-through port of export, B valves of its first threeway
Side entrance end be fixedly connected by pipeline.
The urea pyrolysis and wide load denitrification integrated device, the A valves 1 are the heat exchanger to be exchanged heat in a manner of gas gas
The flapper valve of the heat-resisting material of import, for the heat exchanger 2 to be provided with the structure of tracheae in housing, the B valves 3 are cold wind
The electronic adjustment valve of bypass is adjusted, to be provided with the electric heater of resistance wire in housing, the pyrolysis oven 5 is the heater 4
The structure of nozzle is provided with housing, the C valves 6 dilute the pneumatic Shuttoff Valve of wind for import, and the D valves 7 dilute wind for mouth
Electronic adjustment valve, the E valves 8 are the outlet damper valve of heat exchanger, and the suction ventilator 9 is frequency conversion fan, the flue
10 be selection circular configuration, a kind of structure in polygonized structure, and the boiler 11 is the boiler for power generation, the reversal chamber
12 be a kind of structure in denitration gas approach and selection circular configuration, polygonized structure.
The urea pyrolysis and wide load denitrification integrated device, the A valves 1, heat exchanger 2, suction ventilator 9, E valves 8 is common
With composition gas bypass device.
The urea pyrolysis and wide load denitrification integrated device, the heat exchanger 2, B valves 3, heater 4, pyrolysis oven
5th, C valves 6, D valves 7 collectively form urea pyrolysis device.
The urea pyrolysis and wide load denitrification integrated device, the heat exchanger 2 are negative in the urea pyrolysis and width
In lotus denitrification integrated device, belong to the shared device of the gas bypass device and the urea pyrolysis device, it is described
2 role of heat exchanger is the effect for passing through flue gas and gives the heat transfer extracted in flue gas to dilution wind action.
The urea pyrolysis and wide load denitrification integrated device, it is relatively large due to being carried in 12 high-temperature flue gas of reversal chamber
Dust, therefore be internally provided with soot blower in heat exchanger 2.
The foregoing is merely presently preferred embodiments of the present invention, not makees limitation in any form to the present invention；All one's own professions
The those of ordinary skill of industry, can be shown in by specification attached drawing and described above and swimmingly implement the present invention；But do not departing from
Technical solution of the present invention and the equivalent variations for making differentiation, are the equivalent embodiment of the present invention, still fall within protection of the present invention
Technical solution.
Claims (5)
1. a kind of urea pyrolysis and wide load denitrification integrated device, it is characterised in that：By A valves（1）, heat exchanger（2）, B valves
（3）, heater（4）, pyrolysis oven（5）, C valves（6）, D valves（7）, E valves（8）, suction ventilator（9）, flue（10）, boiler（11）, turn to
Room（12）Form；
The urea pyrolysis and wide load denitrification integrated device, its boiler（11）, reversal chamber（12）, flue（10）It is fixedly connected
Form an entirety, its reversal chamber（12）Upper end fragment position, A valves（1）, heat exchanger（2）, suction ventilator（9）, E valves（8）, flue
（10）Front end fragment position be fixedly connected by pipeline, its C valve（6）, D valves（7）, first threeway input end and side outlet end,
Heat exchanger（2）The arrival end of interior tracheae is fixedly connected by pipeline, its heat exchanger（2）The port of export of interior tracheae, second threeway
Two straight-through ends, heaters（4）, pyrolysis oven（5）, flue（10）Rear end fragment position be fixedly connected by pipeline, it first
The straight-through port of export, the B valves of a threeway（3）, second threeway side entrance end be fixedly connected by pipeline.
2. urea pyrolysis according to claim 1 and wide load denitrification integrated device, it is characterised in that：The A valves（1）
Flapper valve for the heat-resisting material of heat exchanger import to be exchanged heat in a manner of gas gas, the heat exchanger（2）To be set in housing
There are the structure of tracheae, the B valves（3）The electronic adjustment valve of bypass, the heater are adjusted for cold wind（4）To be provided with housing
The electric heater of resistance wire, the pyrolysis oven（5）To be provided with the structure of nozzle, the C valves in housing（6）Wind is diluted for import
Pneumatic Shuttoff Valve, the D valves（7）The electronic adjustment valve of wind, the E valves are diluted for mouth（8）For the exit catch of heat exchanger
Plate valve door, the suction ventilator（9）For frequency conversion fan, the flue（10）For one kind in selection circular configuration, polygonized structure
Structure, the boiler（11）For the boiler for power generation, the reversal chamber（12）For denitration gas approach and selection circular configuration,
A kind of structure in polygonized structure.
3. urea pyrolysis according to claim 1 and wide load denitrification integrated device, it is characterised in that：The A valves
（1）, heat exchanger（2）, suction ventilator（9）, E valves（8）Collectively form gas bypass device.
4. urea pyrolysis according to claim 1 and wide load denitrification integrated device, it is characterised in that：The heat exchanger
（2）, B valves（3）, heater（4）, pyrolysis oven（5）, C valves（6）, D valves（7）Collectively form urea pyrolysis device.
5. urea pyrolysis according to claim 1 and wide load denitrification integrated device, it is characterised in that：The heat exchanger
（2）In the urea pyrolysis and wide load denitrification integrated device, belong to gas bypass device and the institute of the claim 3
State the shared device of the urea pyrolysis device of claim 4, the heat exchanger（2）Role is the effect for passing through flue gas
And give the heat transfer extracted in flue gas to dilution wind action.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710932766.7A CN108014642A (en) | 2017-10-10 | 2017-10-10 | Urea pyrolysis and wide load denitrification integrated device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710932766.7A CN108014642A (en) | 2017-10-10 | 2017-10-10 | Urea pyrolysis and wide load denitrification integrated device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108014642A true CN108014642A (en) | 2018-05-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710932766.7A Pending CN108014642A (en) | 2017-10-10 | 2017-10-10 | Urea pyrolysis and wide load denitrification integrated device |
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| Country | Link |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108816020A (en) * | 2018-06-08 | 2018-11-16 | 湖南大唐节能科技有限公司 | A kind of full load combined denitration optimal control method |
| CN109453665A (en) * | 2018-10-16 | 2019-03-12 | 中国华电科工集团有限公司 | A kind of urea liquid pyrolysis installation and method applied to denitrating system |
| CN114288852A (en) * | 2022-02-16 | 2022-04-08 | 西安西热锅炉环保工程有限公司 | Wide-load coal-fired boiler denitration system and working method thereof |
| CN115475513A (en) * | 2022-09-28 | 2022-12-16 | 马鞍山钢铁股份有限公司 | SCR denitration pyrolysis furnace air inlet temperature regulation and control device and regulation and control method thereof |
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| CN109453665A (en) * | 2018-10-16 | 2019-03-12 | 中国华电科工集团有限公司 | A kind of urea liquid pyrolysis installation and method applied to denitrating system |
| CN114288852A (en) * | 2022-02-16 | 2022-04-08 | 西安西热锅炉环保工程有限公司 | Wide-load coal-fired boiler denitration system and working method thereof |
| CN115475513A (en) * | 2022-09-28 | 2022-12-16 | 马鞍山钢铁股份有限公司 | SCR denitration pyrolysis furnace air inlet temperature regulation and control device and regulation and control method thereof |
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Application publication date: 20180511 |