CN111495135B - Three-phase flow NH3With NO, SO3Cooperative purification system and method and application - Google Patents
Three-phase flow NH3With NO, SO3Cooperative purification system and method and application Download PDFInfo
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Abstract
The invention belongs to the technical field of environmental protection, and relates to a three-phase flow NH3With NO, SO3A synergistic purification system and method and applications. The invention mainly comprises a pre-oxidation system, a gas-solid fluidization system, a liquid-phase jet spray synergistic system and a solid-phase feeding and discharging system. The invention utilizes a preposed oxidation system to oxidize NO into high-nitrogen oxide which is easy to react and adsorb, then the high-nitrogen oxide and solid powder gas-solid complete gas-liquid-solid three-phase mixed flow in a liquid-phase jet system, and oxidized nitrogen oxide and NH3、SO3The reaction is carried out on the surface of the solid phase, the liquid atomization synergy enhances the three-phase reaction effect, and finally the escaped NH3And NO, SO3The purpose of cooperative treatment is achieved.
Description
Technical Field
The invention belongs to the technical field of environmental protection, relates to the field of flue gas purification of kilns such as cement, glass and the like, and particularly relates to a three-phase flow NH3And (3) a purification technology cooperated with NO.
Background
The information in this background section is only for enhancement of understanding of the general background of the invention and is not necessarily to be construed as an admission or any form of suggestion that this information forms the prior art that is already known to a person of ordinary skill in the art.
In the firing process of kilns such as cement, glass and the like, due to high firing temperature and high nitrogen element of raw materials, tail flue gas nitrogen oxide emission is high and simultaneously accompanied with a large amount of SO3The current standard discharge concentration of China is 320mg/m3After ultralow emission of coal power and steel, high-temperature kilns such as cement and glass become main bodies for discharging oxynitride. At present, the main denitration process in the cement industry is SNCR (selective non-catalytic reduction) in which ammonia-containing substances such as urea, ammonia water and the like are sprayed into the high-temperature part of a kiln for reduction denitration, the denitration efficiency is not high and is only 50% -60%, and a large amount of substances exist in the prior artAmmonia slip phenomenon. The inventor finds that: at present, in order to maintain higher denitration efficiency, the ammonia nitrogen ratio is far higher than 1.45, so that a large amount of ammonia escapes, and simultaneously, the ultra-low emission standard of cement and other kilns is released in the Hebei environmental protection hall in 2019, and the NOx emission value is changed from the original 320mg/nm3Reduced to 100mg/m3At the same time, the firing process of the cement determines the SO3The high occupation ratio, which needs a technology for removing multiple pollutants in a synergic way.
Disclosure of Invention
In order to overcome the problems, the invention provides a three-phase flow NH3With NO, SO3A synergistic decontamination system and method. The invention utilizes the mixing of gas, liquid and solid phases to carry out chemical reaction synergy, the gas-phase mixture in the flue gas is selectively oxidized in a preposed oxidation system, and the subsequent adsorption and the surface of solid powder complete NH reaction synergy under the liquid-phase spray synergy3、SO3The capture, adsorption and reaction of the NO are carried out simultaneously, and the NO is subjected to a synergistic emission reduction effect.
In order to achieve the technical purpose, the technical scheme adopted by the invention is as follows:
in a first aspect of the invention, a three-phase stream NH is provided3With NO, SO3A synergistic purification system comprising: the system comprises a pre-oxidation system, a solid-phase feeding and discharging system, a gas-solid fluidization system and a liquid-phase jet spray synergistic system; a pre-oxidation system, a gas-solid fluidization system and a liquid-phase jet spray synergistic system are sequentially arranged on the flue; the solid-phase feeding and discharging system is connected with the gas-solid fluidization system.
In order to respond to the national ultra-low emission standard and solve the problems of overhigh concentration of oxynitride, escape of ammonia gas and emission of sulfur trioxide of the current emission outlet, the invention utilizes a three-phase flow NH3With NO, SO3Synergistic purification technique in solving NH3Slip with simultaneous removal of NOx and SO3And the problem of blockage of the subsequent air preheater hydro-sulfuric acid ammonia is solved.
In a second aspect of the invention, a three-phase stream NH is provided3With NO, SO3A synergistic purification method comprising:
oxidizing the flue gas;
mixing the oxidized flue gas with solid powder;
adding atomized liquid into gas-solid fluid to react.
The invention utilizes a preposed oxidation system to oxidize NO into high-nitrogen oxide which is easy to react and adsorb, then completes gas-liquid-solid three-phase mixed flow with solid powder gas-solid in a liquid-phase jet system, and oxidized nitrogen oxide and NH3、SO3The reaction is carried out on the surface of the solid phase, the liquid atomization synergy enhances the three-phase reaction effect, and finally the escaped NH3And NO, SO3The purpose of cooperative treatment is achieved.
In a third aspect of the invention, there is provided any of the three phase streams NH described above3With NO, SO3The synergistic purification system is applied to the flue gas purification of cement and glass kilns. The invention utilizes the mode of violent disturbance of gas, liquid and solid three-phase flow to capture colloid in the flue gas and accelerate NH3、NO、SO3The synergistic purification reaction can meet the requirement of purifying the flue gas of cement and glass kilns, and is expected to be widely applied in the field.
The invention has the beneficial effects that:
(1) the invention utilizes a three-phase flow NH3NH escaping from flue gas at tail of kiln by emission reduction system in cooperation with NO3And NO are removed in a synergistic manner. Oxidizing NO into high-nitrogen oxide easy to react and adsorb by using a pre-oxidation system, then completing gas-liquid-solid three-phase mixed flow with solid powder gas-solid under a liquid-phase jet system, and oxidizing nitrogen oxide and NH3、SO3The reaction is carried out on the surface of the solid phase, the liquid atomization synergy enhances the three-phase reaction effect, and finally the escaped NH3And NO, SO3The purpose of cooperative treatment is achieved.
(2) Laboratory experimental data show that NH3The removal rate is more than 80 percent, and NH is discharged3The highest concentration is 3mg/m3The NO removal efficiency is more than 70 percent, and the outlet is lower than 100mg/m3，SO3More than 60 percent of pollutants are captured, and the emission concentration of each pollutant at the outlet of the flue reaches the ultra-low emission requirement.
(3) The device has the advantages of simple structure, convenience in operation, strong practicability and easiness in large-scale production.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the application and, together with the description, serve to explain the application and are not intended to limit the application.
FIG. 1 is a schematic structural view of example 1; the device comprises a main body 1, an ozone generator 2, an ozone distribution device 3, a storage bin 4, an air locking feeder 5, a split-flow type feeding channel 6, a gas-solid fluidizing device 7, a high-pressure water pump 8, a process water tank 9 and a bottom waste ash bin.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
Three-phase flow NH3With NO, SO3The system and the method for cooperative purification utilize a mode of violent disturbance of gas, liquid and solid three-phase flow to capture colloid in flue gas and accelerate NH3、NO、SO3And (5) synergistic purification reaction.
The specific structure of the pre-oxidation system is not particularly limited, and in some embodiments, the pre-oxidation system may be an oxidizing gas generator such as an ozone generator, a plasma generator, a chlorine dioxide generator, etc. to oxidize NO into a high nitrogen oxide that is easy to react and adsorb.
In some embodiments, the lower end of the purification system main body is a solid settling tank connected with an ash discharge machine and a waste ash bin, and the bottom of the settling tank is provided with a blowing pipe for regularly blowing to facilitate solid powder to be wrapped by smoke, so that the utilization rate of waste ash is enhanced.
In some embodiments, the solid powder jet is located at the small diameter of the tower, and the gas flow velocity is fast, which facilitates the mixing and upward movement of the solid and gas.
In some embodiments, the liquid phase spray opening is arranged at the upper end of the flaring section, and the spray mode can be a dual-fluid spray mode or a high-pressure spray gun atomization mode, and the purpose is to uniformly distribute small fog drops at the cross section of the purification system.
The specific type of the solid powder is not particularly limited in this application, and in some embodiments, the solid powder used in the purification system may be one or more of calcium hydroxide, calcium carbonate, sodium carbonate, and activated carbon, so as to complete gas-liquid-solid three-phase mixed flow with the high-nitrogen oxide and the atomized liquid droplets.
In some embodiments, the main process tank liquid may be process water or alkaline water ph7-9 with sodium hydroxide. The three-phase reaction effect is enhanced by liquid atomization synergy to achieve NH3And NO, SO3And (4) synergistic treatment.
The present invention is described in further detail below with reference to specific examples, which are intended to be illustrative of the invention and not limiting.
Example 1:
three-phase flow NH3With NO, SO3The synergistic purification system comprises a pre-oxidation system, a gas-solid fluidization system, a liquid-phase jet spray synergistic system and a solid-phase feeding and discharging system. The preposed oxidation system mainly comprises an oxidation generator 1 and a conveying and feeding device 2. The liquid phase jet injection system mainly comprises a liquid pump 7, a flow regulating device and a spray gun. The solid-phase feeding and discharging system comprises a powder storage bin 3, a fluidized fan, an air locking feeder 4, a bottom spiral ash discharger and a bottom blowing device; the gas-solid fluidization system comprises a fluidization fan, a split-flow type feeding channel 5 and a gas-solid jet orifice.
Incoming flow flue gas passes through horizontal flue, the flue is arranged ozone distribution and is put 1 and flow equalizes mixed flue gas, later the flue gas gets into the clean system main part that vertical flue was reformed transform and is carried out the gas, it is solid, liquid three-phase mixed flow reaction, powder solid (calcium carbonate) are stored in storage silo 3, the bottom of the storehouse is fluidized through the fluidization fan and is prevented solid powder dirt deposit, solid powder sends into shunting feed channel 5 through lock gas batcher 4, then get into the gas-solid efflux mouth under the effect of fluidization fan and gravity, spout among the clean system main part under the inside negative pressure of main part system and the condition that the fan blows. SO entrained in flue gas3And NOx and NH3Adsorbed to the micro-gaps on the powder surface, the flue gas flows vertically upwards along the system to enter a liquid phase spraying synergistic position, liquid phase solution is prepared in a main water tank 8 and is conveyed to a spray gun through a high-pressure water pump 7 for spraying synergistic effect, and atomized water drops are adsorbed to the gap structure on the solid powder surface in the process of evaporation by the heat of the flue gas and then are mixed with solid and SO3、NH3、NO2And the generated and precipitated solids are filled in the gap structure and then flow into the tail device along the flue from the top of the purification system.
The running results show that: NOx content before treatment was 280mg/m3And the NOx emission concentration is reduced to 80mg/m after treatment3Wherein NH3The removal rate is more than 80 percent, and NH is discharged3The highest concentration is 3mg/m3The NO removal efficiency is more than 70 percent, and the outlet is lower than 100mg/m3，SO3More than 60 percent of pollutants are captured, and the emission concentration of each pollutant at the outlet of the flue reaches the ultra-low emission requirement.
According to the test data, the chemical reaction synergy is performed by using the gas, liquid and solid phase mixture, the gas phase mixture in the flue gas is selectively oxidized in the pre-oxidation system, and the NH is finished by the subsequent adsorption and the solid powder surface under the liquid phase spray synergy3、SO3The capture, adsorption and reaction of the NO are carried out simultaneously, and the NO is subjected to a synergistic emission reduction effect.
Example 2
Three-phase flow NH3With NO, SO3A synergistic purification system comprising: the system comprises a pre-oxidation system, a solid-phase feeding and discharging system, a gas-solid fluidization system and a liquid-phase jet spray synergistic system; a pre-oxidation system, a gas-solid fluidization system and a liquid-phase jet spray synergistic system are sequentially arranged on the flue; the solid-phase feeding and discharging system is connected with the gas-solid fluidization system.
Example 3
Three-phase flow NH3With NO, SO3A synergistic purification system comprising: the system comprises a pre-oxidation system, a solid-phase feeding and discharging system, a gas-solid fluidization system and a liquid-phase jet spray synergistic system; a pre-oxidation system, a gas-solid fluidization system and a liquid-phase jet spray synergistic system are sequentially arranged on the flue; the solid-phase feeding and discharging system is connected with the gas-solid fluidization system.
The pre-oxidation system comprises: an oxidation generator 1 and a conveying and feeding device 2.
Example 4
Three-phase flow NH3With NO, SO3A synergistic purification system comprising: the system comprises a pre-oxidation system, a solid-phase feeding and discharging system, a gas-solid fluidization system and a liquid-phase jet spray synergistic system; a pre-oxidation system, a gas-solid fluidization system and a liquid-phase jet spray synergistic system are sequentially arranged on the flue; the solid-phase feeding and discharging system is connected with the gas-solid fluidization system.
The pre-oxidation system is an ozone distributing device, a plasma generator or a chlorine dioxide generating device.
Example 5
Three-phase flow NH3With NO, SO3A synergistic purification system comprising: the system comprises a pre-oxidation system, a solid-phase feeding and discharging system, a gas-solid fluidization system and a liquid-phase jet spray synergistic system; a pre-oxidation system, a gas-solid fluidization system and a liquid-phase jet spray synergistic system are sequentially arranged on the flue; the solid-phase feeding and discharging system is connected with the gas-solid fluidization system.
The solid phase feed discharge system comprises: a powder storage bin 4, a fluidized fan, an air locking feeder 5, a bottom spiral ash discharger and a bottom blowing device.
Example 6
Three-phase flow NH3With NO, SO3A synergistic purification system comprising: the system comprises a pre-oxidation system, a solid-phase feeding and discharging system, a gas-solid fluidization system and a liquid-phase jet spray synergistic system; a pre-oxidation system, a gas-solid fluidization system and a liquid-phase jet spray synergistic system are sequentially arranged on the flue; the solid-phase feeding and discharging system is connected with the gas-solid fluidization system.
The gas-solid fluidization system comprises a fluidization fan, a split-flow type feeding channel 6 and a gas-solid jet orifice;
the gas-solid jet orifice is positioned at the small diameter of the flue.
Example 7
Three-phase flow NH3With NO, SO3A synergistic purification system comprising: the system comprises a pre-oxidation system, a solid-phase feeding and discharging system, a gas-solid fluidization system and a liquid-phase jet spray synergistic system; a pre-oxidation system, a gas-solid fluidization system and a liquid-phase jet spray synergistic system are sequentially arranged on the flue; the solid-phase feeding and discharging system is connected with the gas-solid fluidization system.
The liquid-phase jet injection system mainly comprises a liquid pump, a flow regulating device and a spray gun;
the liquid phase spray nozzle is arranged at the upper end of the flaring section;
the spraying mode is two-fluid spraying or high-pressure spray gun atomization.
Example 8
Three-phase flow NH3With NO, SO3A synergistic purification system comprising: the system comprises a pre-oxidation system, a solid-phase feeding and discharging system, a gas-solid fluidization system and a liquid-phase jet spray synergistic system; a pre-oxidation system, a gas-solid fluidization system and a liquid-phase jet spray synergistic system are sequentially arranged on the flue; the solid-phase feeding and discharging system is connected with the gas-solid fluidization system.
The lower end of the purification system is a solid settling tank, and an ash discharge machine and an ash waste bin are connected to the solid settling tank.
It should be noted that the above-mentioned embodiments are only preferred embodiments of the present invention, and the present invention is not limited thereto, and although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and equivalents can be made in the technical solutions described in the foregoing embodiments, or equivalents thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention. Although the embodiments of the present invention have been described with reference to the accompanying drawings, it is not intended to limit the scope of the present invention, and it should be understood by those skilled in the art that various modifications and variations can be made without inventive efforts by those skilled in the art based on the technical solution of the present invention.
Claims (12)
1. Three-phase flow NH3With NO, SO3The cooperative purification method is characterized by comprising the following steps:
oxidizing the flue gas;
mixing the oxidized flue gas with solid powder;
adding atomized liquid into gas-solid fluid to react;
the method specifically comprises the following steps: SO entrained in flue gas3And NOx and NH3Adsorbed to the micro-gaps on the surface of the powder, the flue gas flows upwards vertically along the system to enter a liquid phase spraying synergistic position, liquid phase solution is prepared in a main water tank and is conveyed to a spray gun through a high-pressure water pump for spraying synergistic action, and atomized water drops are adsorbed to the gap structure on the surface of the solid powder in the process of evaporation by the heat of the flue gas and then are adsorbed to the solid and SO3、NH3、NO2The flue gas which is purified and reduced in emission flows into a tail device from the top of the purification system along a flue;
three-phase flow NH used in the method3With NO, SO3A synergistic purification system comprising: the system comprises a pre-oxidation system, a solid-phase feeding and discharging system, a gas-solid fluidization system and a liquid-phase jet spray synergistic system; a pre-oxidation system, a gas-solid fluidization system and a liquid-phase jet spray synergistic system are sequentially arranged on the flue; solid-phase feeding and discharging system and gas-solidThe fluidization system is connected;
the liquid phase spray nozzle is arranged at the upper end of the flaring section of the gas-solid fluidization system.
2. Three-phase flow NH according to claim 13With NO, SO3The cooperative purification method is characterized in that the pre-oxidation system comprises: an oxidation generator and a conveying and feeding device.
3. Three-phase flow NH according to claim 13With NO, SO3The cooperative purification method is characterized in that the preposed oxidation system is an ozone distributing device, a plasma generator or a chlorine dioxide generating device.
4. Three-phase flow NH according to claim 13With NO, SO3A synergistic purification method, wherein the solid phase feed discharge system comprises: a powder storage bin, a fluidized fan, an air locking feeder, a bottom spiral ash discharger and a bottom blowing device.
5. Three-phase flow NH according to claim 13With NO, SO3The cooperative purification method is characterized in that the gas-solid fluidization system comprises a fluidization fan, a split-flow type feeding channel and a gas-solid jet orifice.
6. Three-phase flow NH according to claim 53With NO, SO3The cooperative purification method is characterized in that the gas-solid jet orifice is positioned at the small diameter of the flue.
7. Three-phase flow NH according to claim 13With NO, SO3The cooperative purification method is characterized in that the liquid phase jet injection system mainly comprises a liquid pump, a flow regulating device and a spray gun.
8. Three-phase flow NH according to claim 73With NO, SO3The synergistic purification method is characterized in that the spraying mode is two-fluid spraying or high pressureAnd atomizing by a spray gun.
9. Three-phase flow NH according to claim 13With NO, SO3The cooperative purification method is characterized in that the lower end of the purification system is provided with a solid settling tank, and the solid settling tank is connected with an ash discharge machine and an ash waste bin.
10. Three-phase flow NH according to claim 13With NO, SO3The synergistic purification method is characterized in that the solid powder is one or a mixture of more of calcium hydroxide, calcium carbonate, sodium carbonate and activated carbon;
the atomized liquid is from process water or alkaline water.
11. Three-phase flow NH according to claim 103With NO, SO3The cooperative purification method is characterized in that the alkaline water is prepared by sodium hydroxide, and the pH value is 7-9.
12. Three-phase stream NH according to any one of claims 1 to 113With NO, SO3The synergistic purification method is applied to the purification of the flue gas of cement and glass kilns.
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1923337A (en) * | 2006-08-23 | 2007-03-07 | 浙江大学 | Boiler smoke gas multipollutant ozonization and simultaneous elimination device and method therefor |
| CN205026702U (en) * | 2015-10-14 | 2016-02-10 | 中国天楹股份有限公司 | Full desulfurization system of calcium carbonate |
| CN206980448U (en) * | 2017-05-31 | 2018-02-09 | 江苏康洁环境工程有限公司 | One kind is used for chemical industry tail gas multi-pollutant removing device |
| WO2018181771A1 (en) * | 2017-03-31 | 2018-10-04 | 公立大学法人大阪府立大学 | Exhaust gas treatment apparatus and exhaust gas treatment method |
| CN108970373A (en) * | 2017-05-31 | 2018-12-11 | 江苏康洁环境工程有限公司 | For chemical industry tail gas multi-pollutant removing device and its removal methods |
| CN208852689U (en) * | 2018-08-16 | 2019-05-14 | 北京晨晰环保工程有限公司 | A kind of Novel flue gas desulphurization system |
| CN110575741A (en) * | 2019-09-29 | 2019-12-17 | 广东佳德环保科技有限公司 | Flue gas desulfurization and denitrification device and method |
-
2020
- 2020-04-23 CN CN202010326358.9A patent/CN111495135B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1923337A (en) * | 2006-08-23 | 2007-03-07 | 浙江大学 | Boiler smoke gas multipollutant ozonization and simultaneous elimination device and method therefor |
| CN205026702U (en) * | 2015-10-14 | 2016-02-10 | 中国天楹股份有限公司 | Full desulfurization system of calcium carbonate |
| WO2018181771A1 (en) * | 2017-03-31 | 2018-10-04 | 公立大学法人大阪府立大学 | Exhaust gas treatment apparatus and exhaust gas treatment method |
| CN206980448U (en) * | 2017-05-31 | 2018-02-09 | 江苏康洁环境工程有限公司 | One kind is used for chemical industry tail gas multi-pollutant removing device |
| CN108970373A (en) * | 2017-05-31 | 2018-12-11 | 江苏康洁环境工程有限公司 | For chemical industry tail gas multi-pollutant removing device and its removal methods |
| CN208852689U (en) * | 2018-08-16 | 2019-05-14 | 北京晨晰环保工程有限公司 | A kind of Novel flue gas desulphurization system |
| CN110575741A (en) * | 2019-09-29 | 2019-12-17 | 广东佳德环保科技有限公司 | Flue gas desulfurization and denitrification device and method |
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