CN211098341U - SCR flue gas denitration device of garbage incinerator - Google Patents
SCR flue gas denitration device of garbage incinerator Download PDFInfo
- Publication number
- CN211098341U CN211098341U CN201921705634.1U CN201921705634U CN211098341U CN 211098341 U CN211098341 U CN 211098341U CN 201921705634 U CN201921705634 U CN 201921705634U CN 211098341 U CN211098341 U CN 211098341U
- Authority
- CN
- China
- Prior art keywords
- scr
- reaction tower
- flue
- flue gas
- scr reaction
- 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.)
- Active
Links
Images
Abstract
An SCR flue gas denitration device of a garbage incinerator is characterized in that a rake type soot blower and a catalyst reaction layer are installed in a cavity of an SCR reaction tower, the rake type soot blower is connected to the catalyst reaction layer to form a catalytic reaction region, a compressed air tank is connected with the rake type soot blower through a compressed air heater, the bottom of the SCR reaction tower is connected with an outlet flue of the SCR reaction tower, the upper part of the SCR reaction tower is connected with a combustion heater and a pyrolysis furnace through a pipeline, the pipeline comprises an inlet flue of the SCR reaction tower and a device bypass, the combustion heater is connected to the inlet flue of the SCR reaction tower, a pipeline outlet of the pyrolysis furnace is positioned in an inner cavity of the SCR reaction tower and is connected with an ammonia injection grid, and the catalytic reaction region is vertically arranged in the SCR reaction tower, so that ash; the rake type soot blower is adopted to perform soot deposition and blowing on the catalytic reaction area, so that the efficiency is high and the energy consumption is low; the flue gas adopts the mode of flue direct heating at the heating, avoids influencing the condition of SCR device operation effect because of steam source goes wrong.
Description
Technical Field
The utility model relates to a waste incinerator's SCR flue gas denitration device belongs to waste incinerator flue gas treatment technical field.
Background
The waste incineration power generation technology has obvious advantages of reduction, harmlessness and recycling in the field of household waste treatment, and in recent years, the waste incineration power generation technology has gradually replaced traditional waste treatment methods such as waste landfill and the like, is widely applied in China, and the number and the treatment capacity of waste incineration power generation facilities are increased year by year. However, the waste incineration flue gas contains a large amount of pollutants, and serious secondary pollution can be generated due to improper treatment, so that the proper treatment of the waste incineration flue gas is very important.
Nitrogen Oxides (NO)X) Is one of the main pollutants generated by burning garbage, is also one of the important reasons for forming photochemical smog and acid rain, and can cause serious threats to the ecological environment and human health if the pollutants are discharged in large quantities without being controlled.
For strict control of NOXThe country has established the Standard for controlling pollutants for incineration of domestic waste (GB18485-2014), in which NO is regulatedXHas a daily average emission limit of 250mg/m3. In addition, the waste incineration projects of partial cities in China have higher requirements on smoke emission. Such as the "emission Standard for domestic waste incineration of atmospheric pollutants" (DB31/768-2013) issued by Shanghai City, wherein NO isXHas a daily average emission limit of 200mg/m3NO in directive of industrial emissions of the European Union (2010/75/EU)XThe daily average emission limits are the same.
Common flue gas denitration technologies include SCR and SNCR. Due to the limitation of a reaction temperature range and ammonia escape, the denitration efficiency of the SNCR is about 50% generally, and for many new projects, the goal is difficult to achieve only by using the SNCR. The denitration efficiency of SCR is generally 80-95%, the denitration efficiency is high, and the emission index of nitrogen oxides in flue gas can meet increasingly strict environmental protection requirements of the state.
In some projects, the SCR denitration system is arranged behind a boiler economizer, and heavy metal and SO in the flue gas are not deacidified and dedusted2And the content of the pollutants is high, and the activity of the catalyst is easily influenced. In addition, the ash blockage of downstream equipment is easily caused, so that the flue gas channel of the catalyst module needs to be increased during design, the specific surface area of the catalyst is reduced, the use amount of the catalyst is increased, and the investment and the operating cost are increased.
The SCR catalyst can be divided into a high-temperature catalyst (345-590 ℃), a medium-temperature catalyst (260-380 ℃) and a low-temperature catalyst (180-300 ℃) according to the using temperature. The temperature of the flue gas at the outlet of the waste incineration boiler is about 200 ℃, the flue gas temperature is generally 150-160 ℃ after passing through the deacidification tower and the dust remover, and the flue gas needs to be reheated to ensure the using effect of the catalyst. If a medium-temperature or high-temperature catalyst is adopted, the energy consumption is higher.
In some projects, the SCR flue gas is reheated by adopting a steam-flue gas heat exchange mode, namely, the flue gas entering the SCR reaction tower is heated by adopting steam extracted from a steam turbine, but when the steam turbine is overhauled, the SCR system cannot realize the treatment effect due to no steam source.
The reducing agent for flue gas denitration is ammonia gas, and can be prepared from liquid ammonia or urea. The liquid ammonia has the characteristics of flammability, explosiveness, corrosiveness and volatility, and has large danger coefficient, high safety risk and lower operating cost in the processes of production, transportation, storage and use. Urea is non-toxic and harmless, and has high safety during storage and use, but has higher operating cost.
Disclosure of Invention
In order to overcome the defects of the prior art, the utility model provides a SCR flue gas denitration device of garbage incinerator.
In order to achieve the above object, the utility model provides a SCR flue gas denitrification device of garbage incinerator, install harrow formula soot blower and catalyst reaction layer in the cavity of SCR reaction tower, harrow formula soot blower connects and constitutes the catalytic reaction district on the catalyst reaction layer, the compressed air jar passes through compressed air heater connection harrow formula soot blower, SCR reaction tower exit flue is connected to the bottom of SCR reaction tower, SCR reaction tower upper portion passes through pipe connection combustion heater and pyrolysis oven, the pipeline includes SCR reaction tower entry flue and device bypass, combustion heater connects on SCR reaction tower entry flue, the pipeline export of pyrolysis oven is located the inner chamber of SCR reaction tower and is connected with the ammonia injection grid, 2 dilution fans connect in parallel, the entry pipeline of dilution fan connects SCR reaction tower exit flue, the exit pipeline of dilution fan connects dilution air heater, the exit pipeline of dilution air heater connects the pyrolysis oven, the device bypass is communicated with the inlet flue of the SCR reaction tower and the outlet flue of the SCR reaction tower.
More than 1 layer of catalytic reaction zone is arranged in the cavity of the SCR reaction tower. The catalytic reaction zone is a three-layer catalytic reaction zone, and the three-layer catalytic reaction zone is vertically arranged. The other ends of the device bypass and the SCR reaction tower outlet flue are connected with the chimney.
The utility model discloses following beneficial effect has:
the device adopts low-dust arrangement, namely the device is arranged behind a dust remover, and most of dust, heavy metal and SO in the flue gas2The catalyst is removed, the service life of the catalyst can be greatly prolonged, and meanwhile, the flue gas channel in the catalyst module can be reduced, so that the specific surface area of the catalyst is increased, the using amount of the catalyst is reduced, and the initial investment and the later operation cost are reduced.
And the low-temperature catalyst is adopted, so that the energy consumption caused by reheating the flue gas is reduced. The temperature of the flue gas at the outlet of the dust remover of the waste incineration boiler is generally 150-160 ℃, so the flue gas needs to be reheated to meet the use temperature of the catalyst, and the low-temperature catalyst is suitable for reducing the energy consumption required by the reheating of the flue gas. Through a plurality of engineering examples, the catalyst reaction temperature is determined to be above 230 ℃, and the project success is guaranteed.
The catalytic reaction zone is vertically arranged, so that smoke dust can smoothly pass through the catalyst, smoke dust deposition and catalyst corrosion are reduced, and the occupied area is saved compared with the horizontal arrangement; and meanwhile, a standby layer is arranged, so that the use flexibility of the whole device is improved.
The flue gas is reheated by adopting a mode of directly heating the flue, so that the operation reliability of the SCR device can be ensured. The gas flue is heated by burning light diesel oil or natural gas by a burner, and the SCR device can still normally operate when the steam turbine is overhauled due to the heating by using external fuel. The condition that the SCR device cannot achieve the treatment effect due to lack of a steam source can be avoided by not adopting a steam-flue gas heat exchange mode.
The ammonia gas is prepared by urea pyrolysis, the process safety is high, and the safety risks in storage and use caused by adopting liquid ammonia or ammonia water are avoided. In addition, the temperature of the ammonia gas mixture sprayed into the flue is about 300 ℃, and the influence on the temperature of the flue gas at the SCR inlet is small.
The device adopts low-dust arrangement, so that the influence of the flue gas on the service life of the catalyst can be reduced; by adopting the honeycomb type low-temperature catalyst, the energy consumption for reheating the flue gas can be reduced, and the denitration efficiency can reach more than 90%; the catalytic reaction zone is vertically arranged in the SCR reaction tower, so that the dust deposition is reduced, and the operation cost is reduced; the rake type soot blower is adopted to perform soot deposition and blowing on the catalytic reaction area, so that the efficiency is high and the energy consumption is low; the flue gas is reheated by adopting a mode of directly heating the flue, so that the condition that the operation effect of the SCR device is influenced due to the problem of a steam source is avoided; the ammonia gas is prepared by urea pyrolysis, and the safety is better than that of using liquid ammonia or ammonia water.
Drawings
The invention itself, however, as well as many of the attendant advantages thereof, will be best understood by reference to the following detailed description when considered in connection with the accompanying drawings, wherein like reference numerals indicate like parts throughout the several views, and wherein:
fig. 1 is a structural diagram of the present invention.
The present invention will be further explained with reference to the drawings and examples.
Detailed Description
Obviously, many modifications and variations of the present invention based on the spirit of the present invention will be apparent to those skilled in the art.
It will be apparent to those skilled in the art that, as used herein, the singular forms "a," "an," "the," and "the" may include the plural forms as well, unless expressly stated otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It will be understood that when an element, component or section is referred to as being "connected" to another element, component or section, it can be directly connected to the other element or section or intervening elements or sections may also be present. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description, "plurality" means two or more unless specifically limited otherwise.
Unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are intended to be inclusive and mean, for example, that they may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.
It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art.
The following further explanation is provided in order to facilitate understanding of the embodiments, and the embodiments are not to be construed as limiting the embodiments.
Example 1: aiming at the denitration treatment of waste incineration flue gas, the SCR denitration device is reasonable in arrangement, good in operational reliability, high in safety and good in denitration effect. The low-dust arrangement is adopted, so that the influence of the flue gas on the service life of the catalyst is reduced; the low-temperature catalyst is adopted, the energy consumption for reheating the flue gas is reduced, and meanwhile, the denitration efficiency can reach more than 90%; the flue gas is heated by adopting a flue direct heating mode, so that the condition that the operation effect of the SCR device is influenced due to the problem of a steam source is avoided; the ammonia gas is prepared by urea pyrolysis, and the safety is better than that of using liquid ammonia or ammonia water; the device is provided with a bypass and is used according to the actual operation condition.
As shown in fig. 1, a SCR flue gas denitration device for a garbage incinerator, wherein a cavity of an SCR reaction tower 4 is provided with a rake type soot blower 5 and a catalyst reaction layer 6, the rake type soot blower 5 is connected to the catalyst reaction layer 6 to form a catalytic reaction zone, more than 1 catalytic reaction zone is arranged in the cavity of the SCR reaction tower 4, and three catalytic reaction zones are shown in fig. 1. The three catalytic reaction zones are vertically arranged.
The compressed air tank 8 is connected with the rake type soot blower 5 through a compressed air heater 7, the bottom of the SCR reaction tower 4 is connected with an SCR reaction tower outlet flue 10, the upper part of the SCR reaction tower 4 is connected with a combustion heater 2 and a pyrolysis furnace 13 through a pipeline, the pipeline comprises an SCR reaction tower inlet flue 1 and a device bypass 9, the combustion heater 2 is connected on the SCR reaction tower inlet flue 1, a pipeline outlet of the pyrolysis furnace 13 is positioned in an inner cavity of the SCR reaction tower 4 and is connected with an ammonia injection grid 3, 2 dilution fans 11 are connected in parallel, an inlet pipeline of the dilution fan 11 is connected with the SCR reaction tower outlet flue 10, an outlet pipeline of the dilution fan 11 is connected with a dilution air heater 12, an outlet pipeline of the dilution air heater 12 is connected with the pyrolysis furnace 13, the device bypass 9 is communicated with the SCR reaction tower inlet flue 1 and the SCR reaction tower outlet flue 10, the compressed air tank 8, urea solution is injected into the pyrolysis furnace 13, the other ends of the device bypass 9 and the SCR reaction tower outlet flue 10 are connected with a chimney, and fuel is injected into the combustion heater 2.
The temperature of the area of the ammonia spraying grid 3 is 230 ℃, the temperature of the flue gas area at the outlet of the dust remover of the inlet flue 1 of the SCR reaction tower is 150-160 ℃, the temperature of the outlet area of the pipeline of the pyrolysis furnace 13 is 300 ℃, and the temperature of the area of the outlet flue 10 of the SCR reaction tower at the bottom of the SCR reaction tower 4 is 230 ℃.
Example 2: as shown in fig. 1, an SCR flue gas denitration device for a garbage incinerator includes an inlet flue of an SCR reaction tower, a combustion heater, a urea pyrolysis device, an ammonia injection grid, the SCR reaction tower, a soot blower, an outlet flue of the SCR reaction tower, a device bypass, a connection pipe and a valve inside the device, and the like.
The SCR flue gas denitration device is arranged behind the dust remover and is connected with the outlet of the dust remover.
And a combustion heater is arranged on an inlet flue of the SCR reaction tower, and heats the flue gas from the dust remover to over 230 ℃. The combustion heater should rationally select the mounted position according to the actual flue arrangement condition to guarantee good flue gas heating effect. The combustor can adopt light diesel oil or natural gas as fuel, and the combustion load can be adjusted according to the working condition.
The urea pyrolysis device comprises a dilution fan, a dilution air heater and a pyrolysis furnace. And the dilution fan extracts a part of the flue gas at the outlet of the SCR reaction tower and sends the part of the flue gas to the pyrolysis furnace for diluting ammonia gas. The dilution air heater is used for heating the smoke exhausted by the dilution fan, and the smoke entering the pyrolysis furnace is ensured to meet the reaction requirement. The pyrolysis furnace decomposes the urea solution sprayed into the furnace into substances such as ammonia gas and the like, mixes the substances with dilution air and then sends the substances into the SCR reaction tower.
And an ammonia spraying grid is arranged at an inlet of the SCR reaction tower. The heated flue gas enters an SCR reaction tower, ammonia gas produced by the pyrolysis furnace also enters the reaction tower, and the heated flue gas and the ammonia gas are mixed after an ammonia spraying grid and enter a catalytic reaction zone.
Three layers of catalytic reaction zones are arranged in the SCR reaction tower, wherein two layers are normally used, and one layer is used for standby, so that the use flexibility of the whole device can be improved. The catalyst adopts a honeycomb type low-temperature catalyst with larger specific surface area, which is beneficial to reducing investment and operation cost. The three catalytic reaction zones are vertically arranged, so that smoke dust can smoothly pass through the catalyst, smoke dust deposition is reduced, corrosion to the catalyst is reduced, and meanwhile, the occupied area is saved compared with the horizontal arrangement.
In order to prevent the catalyst dust from excessively increasing the resistance of the device and reducing the efficiency of the catalyst, the soot blower is arranged to blow the dust so as to prolong the service life of the catalyst and reduce the maintenance cost of the SCR. The soot blower includes compressed air tank, compressed air heater and rake soot blower. The ash deposition structure is loose, so that the ash is blown by air conveniently, and compressed air is selected as an air source. The compressed air heater is used for heating air entering the SCR reaction tower, and prevents flue gas from dewing due to too low air temperature, so that catalyst poisoning or corrosion is caused. Compared with the traditional mechanical soot blower, steam soot blower, sound wave soot blower and gas shock wave soot blower, the rake type soot blower has the advantages of high efficiency, low energy consumption, simple structure, safety, reliability, convenient maintenance and the like.
The device bypass is arranged, the fluctuation range of the content of nitrogen oxides in the waste incineration flue gas is large, and when the content of the flue gas before entering the SCR denitration device meets the emission requirement, the SCR denitration device does not need to be input, so that the operation cost is reduced.
The content of nitrogen oxides in the flue gas is effectively reduced after the nitrogen oxides in the flue gas fully react with ammonia gas in the catalytic reaction zone. The denitration efficiency of the device can reach more than 90 percent, and the escape rate of ammonia does not exceed 3mg/m3。
Example 3: as shown in fig. 1, an SCR flue gas denitration device for a garbage incinerator comprises an inlet flue of an SCR reaction tower, a combustion heater, a urea pyrolysis device, an ammonia injection grid, the SCR reaction tower, a soot blower, an outlet flue of the SCR reaction tower, a device bypass, a connecting pipe, a valve and the like inside the device, wherein the whole device is arranged behind a dust remover; the combustion heater is reasonably arranged on an inlet flue of the SCR reaction tower; the ammonia spraying grid is arranged at the inlet of the SCR reaction tower; the catalyst adopts a honeycomb type low-temperature catalyst; the catalytic reaction zone is vertically arranged in the SCR reaction tower and is provided with a standby layer; the accumulated dust in the catalytic reaction zone is swept by a rake type soot blower; preparing ammonia gas by urea pyrolysis; the device is provided with a bypass.
The combustion load is adjustable; the flue is reasonably arranged on the flue, and comprises a combustion flame direction which is consistent and parallel with the flow direction of the flue gas, and a certain acute angle formed by the combustion flame direction along the flow direction of the flue gas.
The low-temperature catalyst is in a honeycomb structure form, and the component system comprises V2O5/TiO2/WO3System, MnOX/TiO2System, MnOX-CeO2/TiO2A system; the air source used by the rake type soot blower is compressed air.
Example 4: as shown in fig. 1, an SCR flue gas denitration device of a garbage incinerator is arranged behind a dust remover and connected with an outlet of the dust remover, and the SCR flue gas denitration device comprises an SCR reaction tower inlet flue 1, a combustion heater 2, a dilution fan 11 of a urea pyrolysis device, a dilution air heater 12, a pyrolysis furnace 13, an ammonia injection grid 3, an SCR reaction tower 4, a rake type soot blower 5 of a soot blower, a compressed air heater 7, a compressed air tank 8, an SCR reaction tower outlet flue 10, a device bypass 9, a connecting pipeline inside the device, a valve and the like.
Flue gas (150-160 ℃) at the outlet of the dust remover enters an inlet flue 1 of the SCR reaction tower.
The combustion heater 2 is arranged on the inlet flue 1 of the SCR reaction tower, and heats the flue gas to 230 ℃ and then enters the SCR reaction tower 4. The installation position of the combustion heater 2 is reasonably selected according to the actual arrangement condition of the inlet flue 1 of the SCR reaction tower, so that a good flue gas heating effect is ensured, for example, the position of the combustion heater 2 is adjusted, and the direction of combustion flame is consistent with the flow direction of flue gas. The fired heater 2 may be fueled by light diesel or natural gas, with a more preferably available fuel being generally selected.
An inlet of the SCR reaction tower 4 is provided with an ammonia injection grid 3, and the pyrolysis furnace 13 decomposes the urea solution injected into the furnace into substances such as ammonia gas and the like, mixes the substances with dilution air and then sends the mixed substances into the SCR reaction tower 4 through the ammonia injection grid 3. The flue gas heated to 230 ℃ is mixed with the ammonia gas produced by the pyrolysis furnace 13 after the ammonia injection grid and enters the catalytic reaction zone.
The dilution fan 11 extracts a part of the flue gas at the outlet of the SCR reaction tower and sends the part of the flue gas to the pyrolysis furnace 13 for diluting the ammonia gas. The dilution air heater 12 is used for heating the flue gas exhausted by the dilution fan 11, and the temperature of the flue gas entering the pyrolysis furnace 13 is ensured to meet the requirement. The temperature in the pyrolysis furnace 13 is about 500-550 ℃, and the urea solution sprayed into the furnace can be decomposed into substances such as ammonia gas and the like.
The SCR reaction tower 4 is internally provided with a catalyst reaction layer 6, three layers are arranged, wherein two layers are normally used, and one layer is used for standby, so that the use flexibility of the whole device can be increased. The catalyst can adopt V2O5/TiO2/WO3The low-temperature honeycomb catalyst of the system has large specific surface area and relatively low use temperature, and is favorable for reducing investment and operation cost. The catalyst reaction layer 6 is vertically arranged, so that smoke dust can smoothly pass through the catalyst, smoke dust deposition is reduced, corrosion to the catalyst is reduced, and meanwhile, the occupied area is saved compared with the horizontal arrangement.
In order to prevent excessive catalyst ash deposition from increasing the resistance of the device and reducing the efficiency of the catalyst, a soot blower is needed to purge the catalyst reaction layer 6 so as to prolong the service life of the catalyst and reduce the maintenance cost. The soot blower comprises a compressed air tank 8, a compressed air heater 7 and a rake type soot blower 5. The dust deposition structure is loose, and air blowing is convenient to use, so compressed air is selected as an air source. The compressed air heater 7 is used for heating the compressed air entering the SCR reaction tower 4, and preventing the flue gas in the tower from dewing due to the over-low air temperature, so that the catalyst is poisoned or corroded. Compared with the traditional mechanical soot blower, steam soot blower, sound wave soot blower and gas shock wave soot blower, the rake type soot blower 5 has the advantages of high efficiency, low energy consumption, simple structure, safety, reliability, convenient maintenance and the like.
After the flue gas fully reacts with ammonia gas in the catalyst reaction layer 6 of the SCR reaction tower 4, the nitrogen oxides in the flue gas are effectively removed. The denitration efficiency of the device can reach more than 90 percent, and the escape rate of ammonia does not exceed 3mg/m3。
As described above, although the embodiments of the present invention have been described in detail, it will be apparent to those skilled in the art that many modifications are possible without substantially departing from the invention and its effects. Therefore, all such modifications are included in the scope of the present invention.
Claims (4)
1. An SCR flue gas denitration device of a garbage incinerator is characterized in that a rake type soot blower and a catalyst reaction layer are installed in a cavity of an SCR reaction tower, the rake type soot blower is connected to the catalyst reaction layer to form a catalytic reaction zone, a compressed air tank is connected with the rake type soot blower through a compressed air heater, the bottom of the SCR reaction tower is connected with an outlet flue of the SCR reaction tower, the upper part of the SCR reaction tower is connected with a combustion heater and a pyrolysis furnace through pipelines, each pipeline comprises an inlet flue of the SCR reaction tower and a device bypass, the combustion heater is connected to the inlet flue of the SCR reaction tower, a pipeline outlet of the pyrolysis furnace is positioned in an inner cavity of the SCR reaction tower and is connected with an ammonia injection grid, 2 dilution fans are connected in parallel, an inlet pipeline of each dilution fan is connected with the outlet flue of the SCR reaction tower, an outlet pipeline of each dilution fan is connected with a, the device bypass is communicated with the inlet flue of the SCR reaction tower and the outlet flue of the SCR reaction tower.
2. The SCR flue gas denitration device of a garbage incinerator according to claim 1, characterized in that more than 1 layer of catalytic reaction zone is arranged in the cavity of the SCR reaction tower.
3. The SCR flue gas denitration device of a garbage incinerator according to claim 1, characterized in that the catalytic reaction zone is a three-layer catalytic reaction zone, and the three-layer catalytic reaction zone is vertically arranged.
4. The SCR flue gas denitration device of a garbage incinerator according to claim 1, characterized in that the other end of the device bypass and the SCR reaction tower outlet flue is connected with a chimney.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921705634.1U CN211098341U (en) | 2019-10-12 | 2019-10-12 | SCR flue gas denitration device of garbage incinerator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921705634.1U CN211098341U (en) | 2019-10-12 | 2019-10-12 | SCR flue gas denitration device of garbage incinerator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211098341U true CN211098341U (en) | 2020-07-28 |
Family
ID=71713468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921705634.1U Active CN211098341U (en) | 2019-10-12 | 2019-10-12 | SCR flue gas denitration device of garbage incinerator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211098341U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112169589A (en) * | 2020-10-30 | 2021-01-05 | 山东信能达工程科技有限公司 | Ultralow-temperature flue gas SCR denitration system and technology |
| CN115608146A (en) * | 2022-09-09 | 2023-01-17 | 山东乐辰节能环保科技有限公司 | Ultrahigh-concentration nitrogen oxide treatment system and method |
-
2019
- 2019-10-12 CN CN201921705634.1U patent/CN211098341U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112169589A (en) * | 2020-10-30 | 2021-01-05 | 山东信能达工程科技有限公司 | Ultralow-temperature flue gas SCR denitration system and technology |
| CN115608146A (en) * | 2022-09-09 | 2023-01-17 | 山东乐辰节能环保科技有限公司 | Ultrahigh-concentration nitrogen oxide treatment system and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN107642793A (en) | Prevent ammonium hydrogen sulfate from blocking the system and method for air preheater after SCR denitration transformation | |
| CN211098341U (en) | SCR flue gas denitration device of garbage incinerator | |
| CN107185376A (en) | A kind of flue gas reuse reinforcing SNCR combines SCR denitrating system | |
| CN105987379B (en) | Boiler controller system | |
| CN204611743U (en) | Boiler controller system | |
| CN108579360A (en) | A kind of coke oven regenerator UTILIZATION OF VESIDUAL HEAT IN couples method of denitration and device with SNCR/SCR | |
| CN110425548A (en) | Chemical industry saliferous raffinate incineration system and its burning process | |
| CN207025089U (en) | A kind of ammonia system processed that urea pyrolysis is directly realized using high temperature flue-gas from boiler | |
| CN103768933B (en) | A kind of flue-gas denitration process of FCC apparatus CO waste heat boiler | |
| Zhang et al. | Effect of low-nitrogen combustion system with flue gas circulation technology on the performance of NOx emission in waste-to-energy power plant | |
| CN205361068U (en) | SNCR of rubbish power plant - low temperature SCR allies oneself with flue gas processing system of usefulness | |
| CN111482085A (en) | Desulfurization and denitrification dust removal system based on heat supply of waste heat of flue gas of biomass boiler | |
| CN208542022U (en) | Incineration flue gas non-catalytic reduction denitrating system based on high concentration reducing agent | |
| CN204084434U (en) | A kind of single low-temperature receiver composite boiler waste heat recovery and Integrated Processing Unit | |
| CN110145754A (en) | It can prevent the boiler flue gas treatment system and method for back-end surfaces low-temperature corrosion | |
| CN215372480U (en) | Submerged combustion type gasification device with ultralow NOx emission | |
| CN214664484U (en) | Waste gas and waste liquid incineration treatment device in ethylene glycol production | |
| CN209926893U (en) | Car bottom type roasting furnace energy-saving and emission-reducing system | |
| CN113154365A (en) | Supercritical CO2Experimental system for coal-fired boiler ultralow emission research | |
| CN208750738U (en) | A kind of processing system for burning combined steam overheat | |
| CN211435702U (en) | Multi-pollutant integrated removing system of circulating fluidized bed boiler | |
| CN104003385B (en) | Slapple activating furnace cascaded utilization of energy energy saver and method application | |
| CN207307605U (en) | A kind of processing mechanism of new and effective desulphurization denitration | |
| CN202675299U (en) | Device for combusting nitrogen-containing organic wastes | |
| CN205535848U (en) | Novel secondary oxidation formula waste incinerator device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |