CN104492260A - Glass kiln flue gas dust removal and denitration integrated process and device - Google Patents
Glass kiln flue gas dust removal and denitration integrated process and device Download PDFInfo
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- CN104492260A CN104492260A CN201410845877.0A CN201410845877A CN104492260A CN 104492260 A CN104492260 A CN 104492260A CN 201410845877 A CN201410845877 A CN 201410845877A CN 104492260 A CN104492260 A CN 104492260A
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- flue gas
- dedusting
- catalyst
- denitration
- filtrate
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
- Y02A50/2351—Atmospheric particulate matter [PM], e.g. carbon smoke microparticles, smog, aerosol particles, dust
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Abstract
The invention provides a glass kiln flue gas dust removal and denitration integrated process. According to the process, a high-temperature dust removal device and a denitration reaction device do not need to be independently arranged, and dust removal and denitration are organically combined in one device; flue gas is subjected to the dust removal and then is subjected to the denitration at a high temperature so that dust and nitric oxide can be removed at the same time; a denitration process is carried out in a pure flue gas environment so that a catalyst is prevented from being poisoned and corroded and the service life of the catalyst is prolonged; and a denitration purification device does not need to be independently arranged so that the process is relatively simple. The invention provides a glass kiln flue gas dust removal and denitration integrated device; the dust removal and denitration catalyst is arranged in a dust removal chamber; and the device has a simple structure and is convenient to mount and replace. The dust removal and the denitration are organically combined in one device and the device is convenient to mount and replace; an SCR reactor device does not need to be independently arranged so that the process is relatively simple and the investment cost and the operation cost of the system are reduced; and the catalyst woks in the pure flue gas environment so that the catalyst is prevented from being poisoned and corroded, and the service life of the catalyst is prolonged.
Description
Technical field
The present invention relates to glass furnace flue gas ash removal denitration technology, be specifically related to a kind of glass furnace flue gas ash removal denitrification integral process and
Its device.
Background technology
SCR (SCR) technology obtains application at 20 century 70s on Industrial Stoves and station boiler, due to technology and the higher denitration (NO of its maturation
x) rate, become the mainstream technology of international denitrating flue gas.Its principle is by reducing agent (ammonia) in suitable temperature and under having catalyst existent condition, the nitrogen oxide (NO in coal-fired flue-gas
x) be converted into nitrogen (N
2) and water (H
2o).
In existing glass furnace flue gas SCR denitration technology, due to NaO, K in exhaust gas dust
2the concentration of the alkali metal oxides such as O is higher, and for avoiding alkali metal to cause catalyst poisoning, extending catalyst service life, so denitrating technique after generally adopting first dedusting, dust arrester and denitrification apparatus are independent separately.Deduster is generally high temperature electrostatic deduster.First enter electrostatic precipitator from glass furnace flue gas out, enter SCR reactor after dedusting and remove nitrogen oxide (NO
x).Because the ratio resistance of at high temperature alkali metal dust is higher, be difficult to charged, alkali metal dust viscosity is difficult to more greatly remove from pole plate simultaneously, electrostatic precipitator is difficult to reach higher dust removing effects, cause denitrating catalyst easily poisoning, abrasion, service life declines, and increases denitration operating cost.
Summary of the invention
Technical problem to be solved by this invention is, for the deficiencies in the prior art, provides the denitration of a kind of glass furnace flue gas ash removal
Integral process, dedusting and denitration without the need to independently arranging high-temperature dust removing device and denitration reaction device, but organically combine in a device by this technique, and denitration after flue gas at high temperature first dedusting, removes while reaching dust and nitrogen oxide; Denitrification process carries out in neat stress environment, avoids the poisoning of catalyst and abrasion, extends the service life of catalyst; Without the need to arranging denitration purifying device separately, technique is simpler.
Technical problem to be solved by this invention is also, for the deficiencies in the prior art, provides a kind of glass furnace flue gas ash removal
Denitrification integrated device, arranges dedusting denitrating catalyst in dirt pocket, and structure is simple, and it is convenient to install and change.
The present invention solves its technical problem and solves by following technical solution:
Glass furnace flue gas ash removal denitrification integral process, after reducing agent ammonia sprays into inlet flue duct by ammonia jet mixing device, ammonia fully mixes with former flue gas.Mixed flue gas is after the dedusting denitration chamber of inlet flue duct, import loudspeaker access to plant, through mixed flue gas balance plate evenly by being arranged on the dedusting denitrating catalyst in dedusting denitration chamber, dust is stopped by outer dedusting filtrate, and the surface being attached to filtrate forms dust filtering layer, mixed flue gas containing ammonia and nitrogen oxide enters internal layer SCR catalyst by the gap between filtrate, under the effect of catalyst, be reduced into nitrogen and water.Flue gas after dedusting denitration purification evenly enters air-purifying chamber through room dividing plate and pure qi (oxygen) balance plate, enters exhaust pass discharge by neat stress outlet loudspeaker.When the dust thickness of outer dedusting filter material surface acquires a certain degree, through the pulse jet air-flow blowback of deashing device, peel off the dust filtering layer of the outer dedusting filtrate of pocket type, dust filtering layer falls into the ash bucket below dedusting denitration chamber under gravity.
Glass furnace flue gas ash removal denitrification integrated device, mainly comprises inlet flue duct, ammonia jet mixing device, import loudspeaker, dedusting denitration chamber, air-purifying chamber, dedusting denitrating catalyst, outlet loudspeaker, exhaust pass, ash bucket, deashing device etc.Arrange ammonia jet mixing device in inlet flue duct, be provided with dedusting denitrating catalyst in dedusting denitration chamber, import loudspeaker are installed between inlet flue duct and dedusting denitration chamber, and deashing device is installed on above dedusting denitration chamber.
Room dividing plate is provided with between above-mentioned dedusting denitration chamber and air-purifying chamber;
In above-mentioned dedusting denitration chamber, mixed flue gas balance plate is also installed;
In above-mentioned air-purifying chamber, neat stress balance plate is also installed;
Above-mentioned dedusting denitrating catalyst comprises: outer dedusting filtrate, carcass middle layer, internal layer SCR catalyst.Outer dedusting filtrate is pouched case, is volcanic rock fibre weaving; Carcass middle layer, stainless steel, the main filtrate that rises supports and catalyst fixation; Internal layer SCR catalyst, base material is the stainless steel cloth of circulus, and surface adopts spray granulation attachment to form the catalyst granules with catalytic activity, is shaped through high-temperature calcination.
Beneficial effect of the present invention is:
1, catalyst active component spray shaping is in ring mesh metallic fiber surface, makes catalyst member have the open structure of inner void, has good adhesive strength, morphotropism, permeability simultaneously;
2, outer dedusting filtrate adopts special volcanic rock fibre to weave the pouch-type filtrate made, and has stronger high temperature resistance and higher intensity, can adapt to complicated operating mode;
3, in engineering practice, dedusting and denitration are organically combined in a device, convenient installation and replacing;
4, run in catalyst neat stress environment, avoid the poisoning of catalyst and abrasion, extend the service life of catalyst;
5, without the need to arranging separately SCR reactor assembly, technique is simpler, reduces system investments cost and operating cost.
Accompanying drawing explanation
Fig. 1 is process flow diagram of the present invention;
Fig. 2 is dedusting denitrating catalyst structural representation of the present invention.
In figure: 1 be inlet flue duct, 2 be ammonia jet mixing device, 3 be import loudspeaker, 4 be dedusting denitration chamber, 5 be air-purifying chamber, 6 for dedusting denitrating catalyst, 6-1 be outer dedusting filtrate, 6-2 is carcass middle layer, 6-3 be internal layer SCR catalyst, 7 is room dividing plate, 8 be mixed flue gas balance plate, 9 be deashing device, 10 be neat stress balance plate, 11 be outlet loudspeaker, 12 be exhaust pass, 13 be ash bucket.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in further detail:
This specific embodiment provides a kind of glass furnace flue gas ash removal denitrification integral process, and after reducing agent ammonia sprays into inlet flue duct by ammonia jet mixing device 2, ammonia fully mixes with former flue gas.Mixed flue gas is after the dedusting denitration chamber 4 of inlet flue duct 1, import loudspeaker 3 access to plant, through mixed flue gas balance plate 8 evenly by being arranged on the dedusting denitrating catalyst 6 in dedusting denitration chamber 4, dust is stopped by outer dedusting filtrate 6-1, and the surface being attached to filtrate forms dust filtering layer, mixed flue gas containing ammonia and nitrogen oxide enters internal layer SCR catalyst 6-3 by the gap between filtrate, under the effect of catalyst, be reduced into nitrogen and water.Flue gas after dedusting denitration purification evenly enters air-purifying chamber 5 through room dividing plate 7 and neat stress balance plate 10, enters exhaust pass 12 discharge by neat stress outlet loudspeaker 11.When the dust thickness on outer dedusting filtrate 6-1 surface acquires a certain degree, through the pulse jet air-flow blowback of deashing device 9, peel off the dust filtering layer of pocket type outer dedusting filtrate 6-1, dust filtering layer falls into the ash bucket 13 below dedusting denitration chamber 4 under gravity.
A kind of glass furnace flue gas ash removal denitrification integrated device that this specific embodiment provides mainly comprises: inlet flue duct 1, ammonia jet mixing device 2, import loudspeaker 3, dedusting denitration chamber 4, air-purifying chamber 5, dedusting denitrating catalyst 6, outlet loudspeaker 11, exhaust pass 12, ash bucket 13, deashing device 9 etc.Arrange ammonia jet mixing device 2 in inlet flue duct 1, be provided with dedusting denitrating catalyst 6 in dedusting denitration chamber 4, import loudspeaker 3 are installed between inlet flue duct 1 and dedusting denitration chamber 4, and deashing device 9 is installed on above dedusting denitration chamber 4.
Room dividing plate 7 is provided with between above-mentioned dedusting denitration chamber 4 and air-purifying chamber 5;
In above-mentioned dedusting denitration chamber, 4 are also provided with mixed flue gas balance plate 8;
In above-mentioned air-purifying chamber 5, neat stress balance plate 10 is also installed;
Above-mentioned dedusting denitrating catalyst 6 comprises: outer dedusting filtrate 6-1, carcass middle layer 6-2, internal layer SCR catalyst 6-3.Outer dedusting filtrate 6-1 is pouched case, is volcanic rock fibre weaving; Carcass middle layer 6-2, stainless steel, the main filtrate that rises supports and catalyst fixation; Internal layer SCR catalyst 6-3, base material is the stainless steel cloth of circulus, and surface adopts spray granulation attachment to form the catalyst granules with catalytic activity, is shaped through high-temperature calcination.
Claims (4)
1. glass furnace flue gas ash removal denitrification integral process, after reducing agent ammonia is sprayed into inlet flue duct by ammonia jet mixing device, ammonia fully mixes with former flue gas, it is characterized in that: mixed flue gas is from inlet flue duct, after the dedusting denitration chamber of import loudspeaker access to plant, through mixed flue gas balance plate evenly by being arranged on the dedusting denitrating catalyst in dedusting denitration chamber, dust is stopped by outer dedusting filtrate, and the surface being attached to filtrate forms dust filtering layer, mixed flue gas containing ammonia and nitrogen oxide enters internal layer SCR catalyst by the gap between filtrate, under the effect of catalyst, be reduced into nitrogen and water, flue gas after dedusting denitration purification evenly enters air-purifying chamber through room dividing plate and pure qi (oxygen) balance plate, enter exhaust pass by neat stress outlet loudspeaker to discharge, when the dust thickness of outer dedusting filter material surface acquires a certain degree, through the pulse jet air-flow blowback of deashing device, peel off the dust filtering layer of the outer dedusting filtrate of pocket type, dust filtering layer falls into the ash bucket below dedusting denitration chamber under gravity.
2. glass furnace flue gas ash removal denitrification integrated device, comprise inlet flue duct, ammonia jet mixing device, import loudspeaker, dedusting denitration chamber, air-purifying chamber, outlet loudspeaker, exhaust pass, ash bucket, deashing device etc., ammonia jet mixing device is set in inlet flue duct, import loudspeaker are installed between inlet flue duct and dedusting denitration chamber, deashing device is installed on above dedusting denitration chamber, it is characterized in that: described dedusting denitrating catalyst is arranged in dedusting denitration chamber.
3. a kind of glass furnace flue gas ash removal denitrification integrated device according to claim 2, is characterized in that: be provided with mixed flue gas balance plate in described dedusting denitration chamber, be also provided with neat stress balance plate in air-purifying chamber.
4. a kind of glass furnace flue gas ash removal denitrification integrated device according to claim 2, is characterized in that: described dedusting denitrating catalyst comprises outer dedusting filtrate, carcass middle layer, internal layer SCR catalyst; Outer dedusting filtrate is pouched case, is volcanic rock fibre weaving; Carcass middle layer, stainless steel, the main filtrate that rises supports and catalyst fixation; Internal layer SCR catalyst, base material is the stainless steel cloth of circulus, and surface adopts spray granulation attachment to form the catalyst granules with catalytic activity, is shaped through high-temperature calcination.
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|---|---|---|---|
| CN201410845877.0A CN104492260A (en) | 2014-12-31 | 2014-12-31 | Glass kiln flue gas dust removal and denitration integrated process and device |
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|---|---|---|---|
| CN201410845877.0A CN104492260A (en) | 2014-12-31 | 2014-12-31 | Glass kiln flue gas dust removal and denitration integrated process and device |
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Cited By (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105214496A (en) * | 2015-10-27 | 2016-01-06 | 展宗城 | A kind of dedusting and denitrification integrated device |
| CN105709578A (en) * | 2016-03-24 | 2016-06-29 | 上海蓝科石化环保科技股份有限公司 | Flue gas denitrification and dust removal method and system |
| CN106175595A (en) * | 2015-05-29 | 2016-12-07 | 德国福维克控股公司 | Can the air filter of back flush |
| CN106268314A (en) * | 2016-09-28 | 2017-01-04 | 福建龙净环保股份有限公司 | The dedusting denitrification integral equipment of a kind of flue gas and filter box thereof |
| CN106731787A (en) * | 2016-11-29 | 2017-05-31 | 湖南思为能源环保工程有限公司 | A kind of high temperature fume dust removal denitrification integrated device |
| CN106731794A (en) * | 2016-12-21 | 2017-05-31 | 苏交科集团股份有限公司 | Dedusting denitrification apparatus and dedusting method of denitration |
| CN107233789A (en) * | 2017-06-30 | 2017-10-10 | 华电电力科学研究院 | A kind of coal-fired flue-gas dust-removing denitrification integral system and its method of work |
| CN107335389A (en) * | 2017-09-07 | 2017-11-10 | 安徽晨晰洁净科技有限公司 | A kind of Novel SCR Benitration reactor |
| CN108079785A (en) * | 2017-12-27 | 2018-05-29 | 中国科学院过程工程研究所 | A kind of double-movement bed reactor and its purposes and processing method in flue gas ash removal denitrification integrated device |
| CN108970396A (en) * | 2018-08-07 | 2018-12-11 | 浙江浙能催化剂技术有限公司 | A kind of high temperature fume dust removal denitrification integrated device and its technique |
| CN109126313A (en) * | 2018-09-18 | 2019-01-04 | 中钢集团天澄环保科技股份有限公司 | Bag-type dusting and catalytic denitration, de- dioxin integrated apparatus |
| CN110639364A (en) * | 2019-09-30 | 2020-01-03 | 上海交通大学 | Porous ceramic tubular filtering catalytic denitration unit and flue gas purification method thereof |
| CN111644059A (en) * | 2020-05-11 | 2020-09-11 | 西安西矿环保科技有限公司 | Integrative device of dust removal denitration |
| CN112121631A (en) * | 2015-10-02 | 2020-12-25 | 托普索公司 | Ceramic filter containing catalyst for purifying exhaust gas or waste gas |
| CN112955243A (en) * | 2018-10-31 | 2021-06-11 | 浦项产业科学硏究院 | Integrated waste gas treatment device using metal filter |
| CN113101792A (en) * | 2020-04-30 | 2021-07-13 | 四川恩特普环保科技有限公司 | Flue gas purification method and equipment |
| CN114768524A (en) * | 2022-04-14 | 2022-07-22 | 北京清新环境技术股份有限公司 | Method for treating low-smoke-gas-quantity high-temperature smoke pollutants in non-electric industry |
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2014
- 2014-12-31 CN CN201410845877.0A patent/CN104492260A/en active Pending
Cited By (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106175595A (en) * | 2015-05-29 | 2016-12-07 | 德国福维克控股公司 | Can the air filter of back flush |
| CN112121869A (en) * | 2015-10-02 | 2020-12-25 | 托普索公司 | Method for producing ceramic filter containing catalyst for purifying exhaust gas or waste gas |
| CN112121631A (en) * | 2015-10-02 | 2020-12-25 | 托普索公司 | Ceramic filter containing catalyst for purifying exhaust gas or waste gas |
| CN105214496B (en) * | 2015-10-27 | 2018-08-10 | 展宗城 | A kind of dedusting and denitrification integrated device |
| CN105214496A (en) * | 2015-10-27 | 2016-01-06 | 展宗城 | A kind of dedusting and denitrification integrated device |
| CN105709578A (en) * | 2016-03-24 | 2016-06-29 | 上海蓝科石化环保科技股份有限公司 | Flue gas denitrification and dust removal method and system |
| CN105709578B (en) * | 2016-03-24 | 2018-10-30 | 上海蓝科石化环保科技股份有限公司 | A kind of method and system of denitrating flue gas dedusting |
| CN106268314A (en) * | 2016-09-28 | 2017-01-04 | 福建龙净环保股份有限公司 | The dedusting denitrification integral equipment of a kind of flue gas and filter box thereof |
| CN106731787A (en) * | 2016-11-29 | 2017-05-31 | 湖南思为能源环保工程有限公司 | A kind of high temperature fume dust removal denitrification integrated device |
| CN106731794A (en) * | 2016-12-21 | 2017-05-31 | 苏交科集团股份有限公司 | Dedusting denitrification apparatus and dedusting method of denitration |
| CN107233789A (en) * | 2017-06-30 | 2017-10-10 | 华电电力科学研究院 | A kind of coal-fired flue-gas dust-removing denitrification integral system and its method of work |
| CN107335389A (en) * | 2017-09-07 | 2017-11-10 | 安徽晨晰洁净科技有限公司 | A kind of Novel SCR Benitration reactor |
| CN108079785A (en) * | 2017-12-27 | 2018-05-29 | 中国科学院过程工程研究所 | A kind of double-movement bed reactor and its purposes and processing method in flue gas ash removal denitrification integrated device |
| CN108970396A (en) * | 2018-08-07 | 2018-12-11 | 浙江浙能催化剂技术有限公司 | A kind of high temperature fume dust removal denitrification integrated device and its technique |
| CN109126313A (en) * | 2018-09-18 | 2019-01-04 | 中钢集团天澄环保科技股份有限公司 | Bag-type dusting and catalytic denitration, de- dioxin integrated apparatus |
| CN109126313B (en) * | 2018-09-18 | 2020-07-21 | 中钢集团天澄环保科技股份有限公司 | Bag type dust removal, catalytic denitration and dioxin removal integrated device |
| CN112955243A (en) * | 2018-10-31 | 2021-06-11 | 浦项产业科学硏究院 | Integrated waste gas treatment device using metal filter |
| CN110639364A (en) * | 2019-09-30 | 2020-01-03 | 上海交通大学 | Porous ceramic tubular filtering catalytic denitration unit and flue gas purification method thereof |
| CN113101792A (en) * | 2020-04-30 | 2021-07-13 | 四川恩特普环保科技有限公司 | Flue gas purification method and equipment |
| CN111644059A (en) * | 2020-05-11 | 2020-09-11 | 西安西矿环保科技有限公司 | Integrative device of dust removal denitration |
| CN114768524A (en) * | 2022-04-14 | 2022-07-22 | 北京清新环境技术股份有限公司 | Method for treating low-smoke-gas-quantity high-temperature smoke pollutants in non-electric industry |
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