CN103406006A - SCR (Selective Catalytic Reduction) denitration device for NOx control of rotary cement kiln - Google Patents
SCR (Selective Catalytic Reduction) denitration device for NOx control of rotary cement kiln Download PDFInfo
- Publication number
- CN103406006A CN103406006A CN2013103905218A CN201310390521A CN103406006A CN 103406006 A CN103406006 A CN 103406006A CN 2013103905218 A CN2013103905218 A CN 2013103905218A CN 201310390521 A CN201310390521 A CN 201310390521A CN 103406006 A CN103406006 A CN 103406006A
- Authority
- CN
- China
- Prior art keywords
- flue gas
- heat exchanger
- rotary kiln
- cement rotary
- scr
- 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.)
- Pending
Links
Images
Landscapes
- Exhaust Gas Treatment By Means Of Catalyst (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses an SCR (Selective Catalytic Reduction) denitration device for NOx control of a rotary cement kiln, wherein the rotary cement kiln is connected with a heat exchanger; a reducing agent injection system is arranged at the kiln tail part of the rotary cement kiln; the flue gas outlet of the rotary cement kiln is connected with the high-temperature flue gas inlet of the heat exchanger; the low-temperature flue gas outlet of the heat exchanger is connected to the flue gas inlet of a bag type dust collector; the outlet of the bag type dust collector is connected to the low-temperature flue gas inlet of the heat exchanger; the high-temperature flue gas outlet of the heat exchanger is connected to the flue gas inlet of an SCR reactor; the flue gas inlet of a desulfurizing tower is connected with the flue gas outlet of the SCR reactor. The three denitration technologies of SNCR (Selective Non-Catalytic Reduction), integrated dust collection and denitration and SCR are combined so that the flue gas of the rotary cement kiln is denitrated three times; specifically, firstly, NOx in the high-temperature flue gas has a selective non-catalytic reaction with a reducing agent at the tail of the kiln; secondly, the bag type dust collector provided with a denitration-functional catalytic filter bag is used for dust removal and secondary denitration; finally, the third time of denitration is performed in the SCR reactor; as a result, the denitration efficiency is greatly improved.
Description
Technical field
The present invention relates to a kind of cement rotary kiln discharge pollutants control technology, in particular a kind of cement rotary kiln NO
xThe SCR denitrification apparatus of controlling.
Background technology
Nitrogen oxide NO
xOne of major pollutants of atmosphere, mainly with NO, NO
2Form exists.National cement industry NO in 2010
xDischarge capacity reaches 2,000,000 tons, accounts for national NO
x10% of total amount, be only second to power industry and automotive emission.In the face of increasingly serious atmosphere polluting problem, China clearly proposes during 12, NO
xReduce discharging 10% the binding indicator, denitration technology is proposed to higher requirement, (GB13223-2011) stipulate the NO of station boiler as " fossil-fuel power plant atmospheric pollutant emission standard "
xEmission limit is 100mg/m
3" cement industry atmosphere pollutants emission standards " (GB4915-2004) stipulates the NO of cement industry
xEmission limit is 800mg/m
3, it is to NO
xRequirement not too adapt to, standard will become tight from now on.
Industrial more common gas denitrifying technology is divided into dry method and the large class of wet method two now, wherein, selective reduction law technology maturation is the maximum denitration technology of current cement industry application, mainly comprise SNCR (SNCR) technology and SCR (SCR) technology, the SNCR technical equipment is simple, and fixed investment is few, but its defect is that denitration efficiency is low, only have 30～40%, far can not reach discharge standard; The SCR technology can make NO
xRemoval efficiency reaches more than 90%, but the particle contained in flue gas, alkaline matter and SO
2The obstruction of catalyst in device and poisoning that can induce reaction, denitration efficiency and the service life of reducing catalyst, therefore, in order to keep the efficient operation of denitrating system, need frequently more catalyst changeout, thereby increased the denitration cost.
Summary of the invention
The object of the invention is to overcome the deficiencies in the prior art, a kind of cement rotary kiln NO is provided
xThe SCR denitrification apparatus of controlling, combine and realize NO_x Reduction by Effective by SNCR, dedusting denitration and SCR.
The present invention is achieved by the following technical solutions, the present invention includes cement rotary kiln, reducing agent sprays into system, heat exchanger, sack cleaner, SCR reactor, desulfurizing tower and chimney; Described cement rotary kiln is connected with heat exchanger, reducing agent sprays into the kiln tail that system is arranged at cement rotary kiln, the high-temperature flue gas import of the exhanst gas outlet of cement rotary kiln and heat exchanger is connected, the low-temperature flue gas outlet of heat exchanger is connected to the gas approach of sack cleaner, the outlet of sack cleaner connects the low-temperature flue gas import of heat exchanger, the high-temperature flue gas outlet of heat exchanger connects the gas approach of SCR reactor, the gas approach of desulfurizing tower is connected with the exhanst gas outlet of SCR reactor, and the flue gas of desulfurizing tower is by smoke stack emission.
As one of optimal way of the present invention, described heat exchanger is gas-to-gas heat exchanger.
Described heat exchanger comprises rectangular enclosure and a plurality of heat pipe, and described heat pipe is arranged at respectively in rectangular enclosure, and many heat pipes form the passage of high temperature fluid and cryogen.When the high and low temperature fluid flow through simultaneously in passage separately, heat pipe was just passed to clean flue gas by the heat of former flue gas, has realized the heat exchange of two kinds of fluids.
After described reducing agent sprays into the dore furnace combustion zone that system is arranged at cement rotary kiln.In the zone near 1100 ℃, realize the SNCR denitration.
As one of optimal way of the present invention, be provided with preheater between described cement rotary kiln and heat exchanger.
Described sack cleaner is provided with filter bag, described filter bag comprise successively connect meet knoisphere, cushion, catalytic decomposition layer and enhancement layer.
As one of optimal way of the present invention, described SCR reactor is honeycomb fashion reaction device.
The present invention has the following advantages compared to existing technology:
1, the present invention, by SNCR, dedusting denitrification integral, tri-kinds of denitration technology combinations of SCR, makes the cement rotary kiln flue gas through three denitrations, the NO in high-temperature flue gas
xAt first at the kiln tail, react with reducing agent generation selective non-catalytic, by sack cleaner dedusting and the secondary denitration of denitration function catalysis filter bag are installed, finally in three denitrations of SCR reactor, with respect to the SNCR technology, denitration efficiency improves greatly thereafter;
2, with respect to existing SCR technology, after the SCR reactor is arranged on the bag-type dusting denitrating system, three denitrations have been realized, denitration efficiency is stabilized in the situation more than 95%, greatly reduce wearing and tearing and the obstruction of dust to catalyst in flue gas, extend the service life of catalyst, reduced the replacement cost of safeguarding of catalyst;
3, the low-temperature flue gas of the high-temperature flue gas of cement kiln tail and sack cleaner outlet carries out exchange heat at the heat exchanger place, can avoid on the one hand the heat-energy losses of high-temperature flue gas, and flue-gas temperature reduces on the one hand, meets the adaptive temperature of sack cleaner;
4, this device of while is applicable to the upgrading of existing cement rotary kiln SCR denitrating system, can reach NO_x Reduction by Effective.
The accompanying drawing explanation
Fig. 1 is structural representation of the present invention;
Fig. 2 is the schematic diagram that sack cleaner filters denitrification integral.
The specific embodiment
Below embodiments of the invention are elaborated, the present embodiment is implemented take technical solution of the present invention under prerequisite, provided detailed embodiment and concrete operating process, but protection scope of the present invention is not limited to following embodiment.
As shown in Figure 1, the present embodiment comprises that cement rotary kiln 1, reducing agent spray into system 2, heat exchanger 4, sack cleaner 5, SCR reactor 6, desulfurizing tower 7 and chimney 8, described cement rotary kiln 1 is connected with heat exchanger 4, between described cement rotary kiln 1 and heat exchanger 4, be provided with preheater 3, reducing agent sprays into the kiln tail that system 2 is arranged at cement rotary kiln 1, the high-temperature flue gas import of the exhanst gas outlet of cement rotary kiln 1 and heat exchanger 4 is connected, the low-temperature flue gas outlet of heat exchanger 4 is connected to the gas approach of sack cleaner 5, the outlet of sack cleaner 5 connects the low-temperature flue gas import of heat exchanger 4, the high-temperature flue gas outlet of heat exchanger 4 connects the gas approach of SCR reactor 6, the gas approach of desulfurizing tower 7 is connected with the exhanst gas outlet of SCR reactor 6, the exhanst gas outlet of desulfurizing tower 7 connects chimney 8.
The heat exchanger 4 of the present embodiment is gas-to-gas heat exchanger.Heat exchanger 4 comprises rectangular enclosure and a plurality of heat pipe, and described heat pipe is arranged at respectively in rectangular enclosure, and many heat pipes form the passage of high temperature fluid and cryogen.When the high and low temperature fluid flow through simultaneously in passage separately, heat pipe was just passed to clean flue gas by the heat of former flue gas, has realized the heat exchange of two kinds of fluids.Make the temperature of former flue gas be reduced to 200～230 ℃, reach the service condition of sack cleaner 5, simultaneously, the temperature of clean flue gas is increased to 350～400 ℃, reaches the field of activity of denitrating catalyst.
After described reducing agent sprays into the dore furnace combustion zone that system 2 is arranged at cement rotary kiln 1.In the zone near 1100 ℃, realize the SNCR denitration.The reducing agent of the present embodiment is the ammonia spirit of 15%～25% mass concentration.
As shown in Figure 2, described sack cleaner 5 is provided with filter bag, described filter bag comprise successively connect meet knoisphere 51, cushion 52, catalytic decomposition layer 53 and enhancement layer 54.Meet knoisphere 51 and cushion 52 and made by aramid fiber and polytetrafluoroethylene fibre blending, contain V
2O
5-WO
3-MnO
x/ TiO
2The poly tetrafluoroethylene of denitrating catalyst is made catalytic decomposition layer 53, polytetrafluoroethylene (PTFE) base cloth and fibrous enhancement layer 54, and described filter bag can be used for a long time under 230 ℃, and described catalytic decomposition layer 53 contains transition metal oxide MnO
xV
2O
5-WO
3/ TiO
2Denitrating catalyst, can be in lower temperature range 200～250 ℃ of catalytic activitys that maintenance is higher, Temperature Matching is good.In Fig. 2, in cushion 52, the arrow downward direction means that flue gas air velocity after cushion reduces.
The SCR reactor 6 of the present embodiment is honeycomb fashion reaction device.Catalyst layer is that five use one are standby, the V that the used catalyst selecting technology is the most ripe
2O
5-WO
3/ TiO
2Denitrating catalyst, wherein, titanium dioxide TiO
2For carrier, metal oxide V
2O
5-WO
3For active component, effectively active temperature is 300～400 ℃.The shared mass percent of each active component of SCR catalyst is as follows: WO
3: 10%～12%, V
2O
5: 0.3%～1.5%, surplus is carrier.
The sulfur method of the desulfurizing tower 7 of the present embodiment adopts the lime/lime stone absorption process.
During the work of this device:
On the dore furnace top of cement rotary kiln 1 (900～1100 ℃), reducing agent is installed and sprays into system 2, reducing agent NH
3With NO in flue gas
xMol ratio in 1.05～1.10 scopes.By reducing agent, spray into the NH that system 2 sprays into
3A part and NO
xThe selective non-catalytic reaction occurs generate N
2And H
2O, reduce NO in flue gas
xConcentration, another part NH
3With remaining NO
xAlong with flue gas flows backward.Flue gas carries out heat exchange from the high-temperature flue gas import inflow of heat exchanger 4, temperature is down to 200 ℃ of left and right, flow in sack cleaner 5, what gaseous mixture was known from experience bag after filtration meets knoisphere 51, cushion 52, through surface filtration and flue gas buffering, most flying dust, halogenated organic matters, heavy metal etc. have been removed; Simultaneously, reducing agent NH in gas mixed process
3Under the effect of the catalytic decomposition layer 53 of filter bag with flue gas in nitrogen oxide generation selective catalytic reduction reaction, make most of NO
xBe reduced to N
2, reach the secondary denitration.
Flue gas flows to the low-temperature flue gas import of heat exchanger 4 under fan action from the exhanst gas outlet of sack cleaner 5, flue gas after purification and former flue gas carry out exchange heat in heat exchanger 4, after flue-gas temperature rises to 300～400 ℃, flow to SCR reactor 6, the NO be left in reducing agent and flue gas
xAt catalyst surface generation selective catalytic reduction reaction, most NO
xBe reduced to N
2, realizing three denitrations, the denitration rate can be stabilized in more than 95%, and the concentration of SCR reactor 6 outlet nitrogen oxide is at 35mg/m
3, the average escapement ratio of ammonia is at 2～3ppm.By the hydrogen-catalyst reactor flue gas through dedusting, denitration out, enter desulfurizing tower 7, finally from chimney 8, discharge.
Claims (7)
1. cement rotary kiln NO
xthe SCR denitrification apparatus of controlling, is characterized in that, comprises that cement rotary kiln (1), reducing agent spray into system (2), heat exchanger (4), sack cleaner (5), SCR reactor (6) and desulfurizing tower (7), described cement rotary kiln (1) is connected with heat exchanger (4), reducing agent sprays into the kiln tail that system (2) is arranged at cement rotary kiln (1), the exhanst gas outlet of cement rotary kiln (1) is connected with the high-temperature flue gas import of heat exchanger (4), the low-temperature flue gas outlet of heat exchanger (4) is connected to the gas approach of sack cleaner (5), the outlet of sack cleaner (5) connects the low-temperature flue gas import of heat exchanger (4), the high-temperature flue gas outlet of heat exchanger (4) connects the gas approach of SCR reactor (6), the gas approach of desulfurizing tower (7) is connected with the exhanst gas outlet of SCR reactor (6), the flue gas of desulfurizing tower (7) is by smoke stack emission.
2. cement rotary kiln NO according to claim 1
xThe SCR denitrification apparatus of controlling is characterized in that described heat exchanger (4) is gas-to-gas heat exchanger.
3. cement rotary kiln NO according to claim 1
xThe SCR denitrification apparatus of controlling is characterized in that described heat exchanger (4) comprises rectangular enclosure and a plurality of heat pipe, and described heat pipe is arranged at respectively in rectangular enclosure, and many heat pipes form the passage of high temperature fluid and cryogen.
4. cement rotary kiln NO according to claim 1
xThe SCR denitrification apparatus of controlling, is characterized in that, after described reducing agent sprays into the dore furnace combustion zone that system (2) is arranged at cement rotary kiln (1).
5. cement rotary kiln NO according to claim 1
xThe SCR denitrification apparatus of controlling, is characterized in that, is provided with preheater (3) between described cement rotary kiln (1) and heat exchanger (4).
6. cement rotary kiln NO according to claim 1
xThe SCR denitrification apparatus of controlling is characterized in that described sack cleaner (5) is provided with filter bag, described filter bag comprise connect successively meet knoisphere (51), cushion (52), catalytic decomposition layer (53) and enhancement layer (54).
7. cement rotary kiln NO according to claim 1
xThe SCR denitrification apparatus of controlling, is characterized in that, described SCR reactor (6) is honeycomb fashion reaction device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103905218A CN103406006A (en) | 2013-08-30 | 2013-08-30 | SCR (Selective Catalytic Reduction) denitration device for NOx control of rotary cement kiln |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013103905218A CN103406006A (en) | 2013-08-30 | 2013-08-30 | SCR (Selective Catalytic Reduction) denitration device for NOx control of rotary cement kiln |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103406006A true CN103406006A (en) | 2013-11-27 |
Family
ID=49599075
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013103905218A Pending CN103406006A (en) | 2013-08-30 | 2013-08-30 | SCR (Selective Catalytic Reduction) denitration device for NOx control of rotary cement kiln |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103406006A (en) |
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104645828A (en) * | 2015-02-12 | 2015-05-27 | 浙江省环境保护科学设计研究院 | SCR denitration device and method applied to high-dust-content smoke from kiln tail of cement clinker production line |
| CN104772014A (en) * | 2015-04-10 | 2015-07-15 | 无锡华光新动力环保科技股份有限公司 | Combined denitration device for flue gas of cement rotary kiln and denitration technology for flue gas |
| CN104906952A (en) * | 2015-06-03 | 2015-09-16 | 北京凯盛建材工程有限公司 | SCR denitration system and method |
| CN105148697A (en) * | 2015-08-21 | 2015-12-16 | 南京白云化工环境监测有限公司 | Flue gas desulfurization and denitrification system |
| CN106215693A (en) * | 2016-08-31 | 2016-12-14 | 苏州贝捷环保设备有限公司 | Coal-fired flue-gas processes and uses dry chemical Catalytic processor |
| CN108568199A (en) * | 2018-05-31 | 2018-09-25 | 郑州市天之蓝环保科技有限公司 | A kind of industrial smoke processing method and industrial smoke processing system |
| CN108671751A (en) * | 2018-07-10 | 2018-10-19 | 北京首钢国际工程技术有限公司 | A kind of chain grate-rotary kiln pelletizing equipment for denitrifying flue gas and application method |
| CN109028121A (en) * | 2018-05-15 | 2018-12-18 | 许昌龙岗发电有限责任公司 | A kind of dust-removing flue reducing coal unit catalyst abrasion |
| CN109731462A (en) * | 2018-05-31 | 2019-05-10 | 安徽海螺建材设计研究院有限责任公司 | A kind of flue gas nitrogen oxide processing system |
| CN110052141A (en) * | 2019-06-06 | 2019-07-26 | 天津水泥工业设计研究院有限公司 | The desulphurization denitration dedusting minimum discharge technique and system of sour feedstock production cement |
| CN110124486A (en) * | 2019-05-27 | 2019-08-16 | 凤阳海泰科能源环境管理服务有限公司 | A kind of garbage power plant smoke NO_x Reduction by Effective dust pelletizing system and method |
| CN113209727A (en) * | 2021-04-15 | 2021-08-06 | 江苏泽宇环境工程有限公司 | Gravity type pulse dust removal denitration integrated device |
| CN113908678A (en) * | 2021-12-15 | 2022-01-11 | 山东东源新材料科技有限公司 | Cement pit flue gas denitration device and using method thereof |
| CN113952836A (en) * | 2021-09-13 | 2022-01-21 | 国网河北省电力有限公司电力科学研究院 | Flue gas denitration system and method based on catalytic decomposition of NOx |
| CN115228266A (en) * | 2022-06-12 | 2022-10-25 | 安阳中联水泥有限公司 | Rotary cement kiln flue gas degree of depth dust removal denitration device that heat does not run off |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101773781A (en) * | 2010-03-23 | 2010-07-14 | 浙江大学 | Method for realizing SNCR and SCR combined denitration by using coal-fired boiler |
| CN202021014U (en) * | 2011-04-12 | 2011-11-02 | 北京洛卡环保技术有限公司 | System for removing nitric oxide from boiler flue gas |
| CN202021013U (en) * | 2011-03-14 | 2011-11-02 | 无锡华光锅炉股份有限公司 | Dedusting and denitration system of coal-fired flue gas of thermal power plant |
| US20110311424A1 (en) * | 2010-06-22 | 2011-12-22 | 2E Environmental, LLC | BIOMASS BOILER SCR NOx AND CO REDUCTION SYSTEM |
| CN202355981U (en) * | 2011-12-06 | 2012-08-01 | 北京龙腾华创环境能源技术有限公司 | Integrated removal device for pollutants discharged from coal combustion |
| CN202410497U (en) * | 2011-12-07 | 2012-09-05 | 浙江天蓝环保技术股份有限公司 | Flue gas denitration device of cement kiln |
| CN103170229A (en) * | 2013-03-01 | 2013-06-26 | 大连易世达新能源发展股份有限公司 | Desulfurization and denitration integrated system of industrial kiln stove |
| CN103252135A (en) * | 2013-05-08 | 2013-08-21 | 安徽省元琛环保科技有限公司 | Dedusting and denitration integrated functional filter material and preparation method thereof |
| CN203494378U (en) * | 2013-08-30 | 2014-03-26 | 安徽省元琛环保科技有限公司 | SCR (Selective Catalytic Reduction) denitration device for controlling NOx of rotary cement kiln |
-
2013
- 2013-08-30 CN CN2013103905218A patent/CN103406006A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101773781A (en) * | 2010-03-23 | 2010-07-14 | 浙江大学 | Method for realizing SNCR and SCR combined denitration by using coal-fired boiler |
| US20110311424A1 (en) * | 2010-06-22 | 2011-12-22 | 2E Environmental, LLC | BIOMASS BOILER SCR NOx AND CO REDUCTION SYSTEM |
| CN202021013U (en) * | 2011-03-14 | 2011-11-02 | 无锡华光锅炉股份有限公司 | Dedusting and denitration system of coal-fired flue gas of thermal power plant |
| CN202021014U (en) * | 2011-04-12 | 2011-11-02 | 北京洛卡环保技术有限公司 | System for removing nitric oxide from boiler flue gas |
| CN202355981U (en) * | 2011-12-06 | 2012-08-01 | 北京龙腾华创环境能源技术有限公司 | Integrated removal device for pollutants discharged from coal combustion |
| CN202410497U (en) * | 2011-12-07 | 2012-09-05 | 浙江天蓝环保技术股份有限公司 | Flue gas denitration device of cement kiln |
| CN103170229A (en) * | 2013-03-01 | 2013-06-26 | 大连易世达新能源发展股份有限公司 | Desulfurization and denitration integrated system of industrial kiln stove |
| CN103252135A (en) * | 2013-05-08 | 2013-08-21 | 安徽省元琛环保科技有限公司 | Dedusting and denitration integrated functional filter material and preparation method thereof |
| CN203494378U (en) * | 2013-08-30 | 2014-03-26 | 安徽省元琛环保科技有限公司 | SCR (Selective Catalytic Reduction) denitration device for controlling NOx of rotary cement kiln |
Cited By (20)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104645828B (en) * | 2015-02-12 | 2017-01-04 | 浙江省环境保护科学设计研究院 | A kind of SCR denitration device being applied to cement clinker production line kiln tail high-dust flue gas and method |
| CN104645828A (en) * | 2015-02-12 | 2015-05-27 | 浙江省环境保护科学设计研究院 | SCR denitration device and method applied to high-dust-content smoke from kiln tail of cement clinker production line |
| CN104772014A (en) * | 2015-04-10 | 2015-07-15 | 无锡华光新动力环保科技股份有限公司 | Combined denitration device for flue gas of cement rotary kiln and denitration technology for flue gas |
| CN104906952A (en) * | 2015-06-03 | 2015-09-16 | 北京凯盛建材工程有限公司 | SCR denitration system and method |
| CN105148697A (en) * | 2015-08-21 | 2015-12-16 | 南京白云化工环境监测有限公司 | Flue gas desulfurization and denitrification system |
| CN106215693A (en) * | 2016-08-31 | 2016-12-14 | 苏州贝捷环保设备有限公司 | Coal-fired flue-gas processes and uses dry chemical Catalytic processor |
| CN109028121A (en) * | 2018-05-15 | 2018-12-18 | 许昌龙岗发电有限责任公司 | A kind of dust-removing flue reducing coal unit catalyst abrasion |
| CN108568199A (en) * | 2018-05-31 | 2018-09-25 | 郑州市天之蓝环保科技有限公司 | A kind of industrial smoke processing method and industrial smoke processing system |
| CN109731462A (en) * | 2018-05-31 | 2019-05-10 | 安徽海螺建材设计研究院有限责任公司 | A kind of flue gas nitrogen oxide processing system |
| CN108671751A (en) * | 2018-07-10 | 2018-10-19 | 北京首钢国际工程技术有限公司 | A kind of chain grate-rotary kiln pelletizing equipment for denitrifying flue gas and application method |
| CN110124486A (en) * | 2019-05-27 | 2019-08-16 | 凤阳海泰科能源环境管理服务有限公司 | A kind of garbage power plant smoke NO_x Reduction by Effective dust pelletizing system and method |
| CN110052141A (en) * | 2019-06-06 | 2019-07-26 | 天津水泥工业设计研究院有限公司 | The desulphurization denitration dedusting minimum discharge technique and system of sour feedstock production cement |
| CN110052141B (en) * | 2019-06-06 | 2023-11-10 | 天津水泥工业设计研究院有限公司 | Desulfurization, denitrification, dust removal and ultralow emission process and system for producing cement from high-sulfur raw materials |
| CN113209727A (en) * | 2021-04-15 | 2021-08-06 | 江苏泽宇环境工程有限公司 | Gravity type pulse dust removal denitration integrated device |
| CN113952836A (en) * | 2021-09-13 | 2022-01-21 | 国网河北省电力有限公司电力科学研究院 | Flue gas denitration system and method based on catalytic decomposition of NOx |
| CN113952836B (en) * | 2021-09-13 | 2023-11-17 | 国网河北省电力有限公司电力科学研究院 | Flue gas denitration system and method based on catalytic decomposition of NOx |
| CN113908678A (en) * | 2021-12-15 | 2022-01-11 | 山东东源新材料科技有限公司 | Cement pit flue gas denitration device and using method thereof |
| CN113908678B (en) * | 2021-12-15 | 2022-02-25 | 山东东源新材料科技有限公司 | Cement pit flue gas denitration device and using method thereof |
| CN115228266A (en) * | 2022-06-12 | 2022-10-25 | 安阳中联水泥有限公司 | Rotary cement kiln flue gas degree of depth dust removal denitration device that heat does not run off |
| CN115228266B (en) * | 2022-06-12 | 2023-12-01 | 安阳中联水泥有限公司 | Cement rotary kiln flue gas degree of depth dust removal denitration equipment that heat does not run off |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103406006A (en) | SCR (Selective Catalytic Reduction) denitration device for NOx control of rotary cement kiln | |
| CN203494378U (en) | SCR (Selective Catalytic Reduction) denitration device for controlling NOx of rotary cement kiln | |
| CN203501199U (en) | NOx-controlled denitrification device of glass kiln | |
| CN105169942B (en) | Flue gas of glass melting furnace dust-removal and desulfurizing denitration coprocessing system and processing method and application | |
| CN201643982U (en) | FCC flue gas denitration catalytic reactor | |
| CN205145971U (en) | Coke oven flue gas desulfurization denitration dust removal integration system | |
| CN104888591A (en) | Boiler flue gas denitration purification system and boiler flue gas denitration purification method | |
| CN105664717A (en) | Desulphurization, denitration and dust removal integrated treatment process of exhaust gas | |
| CN104772018A (en) | Flue gas desulfurization and denitration system and flue gas desulfurization and denitration method in thermal power plant | |
| CN104162352A (en) | Glass kiln flue gas de-dusting, denitrification and desulfurization integral treatment process | |
| CN105148696A (en) | Denitration and dust removal system and method for industrial kiln gas | |
| CN205032070U (en) | Desulfurization dust removal denitration integrated device | |
| CN205412681U (en) | Tail gas desulfurization , denitration, dust removal integration treatment device | |
| CN204724003U (en) | The cleaning system of denitration of boiler smoke | |
| CN102309920B (en) | Method for removing NOx and SOx from fluid catalytic cracking (FCC) flue gas | |
| CN102909104A (en) | Thermal regeneration method and device of SCR (selective catalytic reduction) denitration catalyst | |
| CN112604400B (en) | Flue gas purification method and flue gas purification system | |
| CN210097394U (en) | Be used for cement kiln tail flue gas dust nitrogen oxide desorption system in coordination | |
| CN202590630U (en) | Coal-fired boiler low-temperature selective catalytic reduction (SCR) fixed bed smoke denitration device | |
| CN210473618U (en) | Low temperature SCR denitrification facility in steel rolling heating furnace flue gas dry desulfurization | |
| CN205007830U (en) | Denitration dust pelletizing system of industrial stoves flue gas | |
| CN201754034U (en) | Comprehensive treatment system for glass furnace flue gas | |
| CN111054212A (en) | Heat-storage molecular sieve-regulated catalytic reduction denitration device | |
| CN103170229A (en) | Desulfurization and denitration integrated system of industrial kiln stove | |
| CN217015752U (en) | Integrated treatment system for desulfurization, denitration and dust removal of calcined flue gas |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20131127 |