CN102079511A - Acid making system suitable for high-concentration sulfur dioxide-containing flue gas - Google Patents
Acid making system suitable for high-concentration sulfur dioxide-containing flue gas Download PDFInfo
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Abstract
The invention belongs to the technical field of flue gas acid making, in particular to an acid making system suitable for high-concentration sulfur dioxide-containing flue gas. The acid making system comprises a main system used for converting sulfur dioxide-containing flue gas of which the sulfur dioxide concentration is lower than the set sulfur dioxide concentration value for making acid, and a pre-conversion and absorption system used for treating the sulfur dioxide-containing flue gas of which the sulfur dioxide concentration is at least equal to the set sulfur dioxide concentration value into sulfur dioxide-containing flue gas of which the sulfur dioxide concentration is lower than the set sulfur dioxide concentration value, and mixing the treated sulfur dioxide-containing flue gas of which the sulfur dioxide concentration is lower than the set sulfur dioxide concentration value with sulfur dioxide-containing flue gas of which the sulfur dioxide concentration is at least equal to the set sulfur dioxide concentration value and which is about to enter the system, so that the sulfur dioxide concentration value of the flue gas which finally enters the main system is lower than the set value. By the acid making system, diluent air quantity supplemented to the main system is small or even diluent air is not needed to be supplemented; and pre-conversion reaction heat is fully utilized to maintain the heat balance of the whole system, and the load of the main system is not increased through pre-absorption, so that a large amount of equipment investment and operating cost are saved.
Description
Technical field
The invention belongs to the flue gas acid preparing technical field, be specifically related to a kind of acid making system that contains the high density sulfur dioxide flue gas that is applicable to.
Background technology
Present traditional flue gas acid preparing technology is considered the heat resistance and the device security problem of catalyzer, all requires to enter the SO of the flue gas of conversion procedure
2Concentration is less than 13%.Along with the non-ferrous metal especially development of copper metal oxygen-rich smelting technology, the SO of the flue gas that smelting technology produces
2Concentration can be up to more than 13%, because the SO in this kind flue gas
2Concentration does not meet the requirement of conversion procedure, therefore need handle it.If adopt by adding air with the SO in this kind flue gas
2The method that concentration dilution to 13% is following then owing to the total exhaust gas volumn that enters conversion procedure significantly increases, thereby causes the system device specification to strengthen, and investment increases, also significantly increase of running cost simultaneously, and this kind is by adding the SO in the air dilution flue gas simultaneously
2Therefore the method for concentration also and be not suitable for transformations of expanding production of existing flue gas acid preparing system is needed badly at present and is solved employing and contain higher SO
2The flue gas of concentration carries out the problem of relieving haperacidity.
Summary of the invention
The purpose of this invention is to provide a kind of acid making system that contains the high density sulfur dioxide flue gas that is applicable to, native system is particularly useful for the transformation of expanding production of existing flue gas acid preparing system, and less investment and working cost are low.
For achieving the above object, the present invention has adopted following technical scheme: a kind of acid making system that contains the high density sulfur dioxide flue gas that is applicable to is characterized in that comprising as the lower section:
Host system, the flue gas that is used for containing the sulfur dioxide concentration value that is lower than setting transforms relieving haperacidity;
The pre-inversion absorption system, be used for to contain the flue gas that the flue gas that equals the sulfur dioxide concentration value set at least is treated to the sulfur dioxide concentration value that is lower than setting, and the flue gas of the sulfur dioxide concentration value that is lower than setting after will handling mixes with the flue gas that equals the sulfur dioxide concentration value set at least of desiring to enter host system, is lower than set(ting)value so that finally enter the sulfur dioxide concentration value of the flue gas in the host system.
The present invention can also be able to further realization in the following manner:
Described pre-inversion absorption system comprises pre-converter, the outlet side of pre-converter links to each other with the inlet end of preabsorption tower, the flue gas that contains the sulfur dioxide concentration value that is lower than setting after the preabsorption tower is handled divides two-way to discharge, wherein one the tunnel is connected with the uptake of host system, mix with the flue gas that equals the sulfur dioxide concentration value set at least of desiring to enter host system, be lower than set(ting)value so that finally enter the sulfur dioxide concentration value of the flue gas in the host system; Another road is connected with the uptake of pre-converter, and desires to enter the flue gas that containing of pre-converter equal the sulfur dioxide concentration value set at least and mixes, and make the sulfur dioxide concentration value that finally enters the flue gas in the pre-converter be lower than set(ting)value.
Described pre-inversion absorption system comprises pre-converter, the outlet side of pre-converter links to each other with the inlet end of preabsorption tower, the flue gas that contains the sulfur dioxide concentration value that is lower than setting after the preabsorption tower is handled is connected with the uptake of host system, mix with the flue gas that equals the sulfur dioxide concentration value set at least of desiring to enter host system, be lower than set(ting)value so that finally enter the sulfur dioxide concentration value of the flue gas in the host system; The uptake of described pre-converter also is provided with the blast pipe with air communication, this blast pipe is introduced diluent air and is desired to enter the flue gas that containing of pre-converter equal the sulfur dioxide concentration value set at least and mix, and the feasible sulfur dioxide concentration value that finally enters the flue gas in the pre-converter is lower than set(ting)value.
The uptake of described pre-converter also is provided with the blast pipe with air communication.
Described pre-inversion absorption system also comprises and is delivered to the pre-inversion blower fan that pre-converter is handled with containing the flue gas that equals the sulfur dioxide concentration value set at least.
The air intake of described pre-inversion blower fan is connected with the uptake of host system, is delivered to pre-converter with the flue gas that equals the sulfur dioxide concentration value set at least that will desire to enter host system by the pre-inversion blower fan and handles.
The described sulfur dioxide concentration value that finally enters the sulfur dioxide concentration value of the flue gas in the host system and finally enter the flue gas in the pre-converter all is lower than 13%.
Described pre-inversion absorption system also comprises first heat exchanger and second heat exchanger; Described first heat exchanger makes and to carry out heat exchange between the flue gas handled through pre-converter and the flue gas of desiring to enter pre-converter, described second heat exchanger make handle through pre-converter successively and the flue gas of the first heat exchanger heat exchange and the processing of process preabsorption tower after and the flue gas of desiring to enter host system between carry out heat exchange.
The outlet end of described preabsorption tower is provided with preabsorption pump groove and the preabsorption acid cooler that links to each other successively.
Described and blast pipe air communication is provided with the dry air tower.
Beneficial effect of the present invention is: be provided with the pre-inversion absorption system among the present invention, the air intake of the pre-inversion blower fan in the pre-inversion absorption system is introduced and is desired to enter the SO of host system
2Concentration is higher than the flue gas more than 13%, and the air intake of pre-inversion blower fan is introduced SO by adopting simultaneously
2Concentration is lower than 13% flue gas or additional diluent air or introduces SO
2Concentration is lower than the mode that 13% flue gas and additional diluent air combine, and makes the SO that finally enters the flue gas in the pre-inversion absorption system
2Concentration is reduced to 10%～13%; Flue gas after the present invention will handle through the pre-inversion absorption system simultaneously is used for reducing the SO of the flue gas that enters host system
2Concentration makes the SO of the flue gas that enters main convertor
2Concentration is reduced to 10%～13%.
Compare with conventional conversion process, the present invention can significantly reduce the diluent air that host system need be replenished, perhaps even make host system not need to replenish diluent air; The present invention has also made full use of pre-inversion reaction heat keeping the heat balance of total system, and adopts preabsorption not increasing the host system load, thereby has saved great deal of investment and working cost.The present invention is particularly useful for the transformation of expanding production of existing flue gas acid preparing system, is a kind of acid making system of energy-saving and cost-reducing type.
Description of drawings
Fig. 1 is that the pre-inversion absorption system adopts Recycle design to reduce SO in the flue gas
2The process flow sheet of the present invention of concentration;
Fig. 2 is that the pre-inversion absorption system adopts additional air mode to reduce SO in the flue gas
2The process flow sheet of the present invention of concentration.
Embodiment
Below in conjunction with specific embodiment the present invention is further elaborated.
As shown in Figure 1, the SO that attracts from host system
2Concentration is higher than the flue gas and the SO that passes through after the pre-inversion absorption system is handled more than 13%
2Concentration is lower than 13% flue gas mixing, so that the SO of mixed flue gas
2Concentration is lower than 13%, this mixed flue gas successively by pre-inversion blower fan 10 pressurization, 20 heating of first heat exchanger, pre-converter 30 handle, once more through 20 heat exchange of first heat exchanger, 40 heat exchange of second heat exchanger, enter preabsorption tower 50 at last and handle to obtain SO
2Concentration is lower than 13% flue gas, and this flue gas of handling through preabsorption tower 50 is divided into two-way, wherein one the tunnel through after 40 heat exchange of second interchanger with the SO that desires to enter host system
2The flue gas that concentration is higher than more than 13% mixes, so that finally enter the SO of the flue gas in the host system
2Concentration is lower than 13%; The air intake of another Lu Zeyu pre-inversion blower fan 10 is communicated with, with the SO that attracts from host system
2The flue gas that concentration is higher than more than 13% mixes, so that enter the SO of the mixed flue gas of pre-inversion blower fan 10
2Concentration is lower than 13%.
The outlet end of preabsorption tower 50 is provided with preabsorption pump groove 60 and the preabsorption acid cooler 70 that links to each other successively.
As preferred version of the present invention, can also be at the air intake setting of pre-inversion blower fan 10 and the blast pipe 80 of air communication, to adopt air and SO through obtaining after 50 processing of preabsorption tower
2Concentration is lower than the mode that 13% flue gas combines, common SO to attracting from host system
2The flue gas that concentration is higher than more than 13% dilutes.
As shown in Figure 2, the SO that attracts from host system
2Concentration is higher than the flue gas and the air mixed of introducing by blast pipe 80 more than 13%, so that the SO of mixed flue gas
2Concentration is lower than 13%, this mixed flue gas successively by pre-inversion blower fan 10 pressurization, 20 heating of first heat exchanger, pre-converter 30 handle, once more through 20 heat exchange of first heat exchanger, 40 heat exchange of second heat exchanger, enter preabsorption tower 50 at last and handle to obtain SO
2Concentration is lower than 13% flue gas, this flue gas of handling through preabsorption tower 50 through 40 heat exchange of second interchanger after with the SO that desires to enter host system
2The flue gas that concentration is higher than more than 13% mixes, so that finally enter the SO of the flue gas in the host system
2Concentration is lower than 13%.
Preferably, described and blast pipe 80 air communication is provided with dry air tower 90, so that the air of introducing is carried out drying treatment.
Tell the flue gas flow of pre-inversion absorption system from host system, according to the flue gas SO of host system
2Concentration and take all factors into consideration with transformation efficiency, purpose are to make mixed and enter the SO of the flue gas in the pre-inversion absorption system
2Concentration is reduced to 10%～13%.
There is multiple implementation the position of pre-inversion blower fan 10 in the pre-inversion absorption system, enters before the pre-converter 30 such as being arranged on, and also can be arranged on after the preabsorption tower 50, perhaps also can be set to the fan parallel-connection configuration with host system.
Claims (10)
1. one kind is applicable to the acid making system that contains the high density sulfur dioxide flue gas, it is characterized in that comprising as the lower section:
Host system, the flue gas that is used for containing the sulfur dioxide concentration value that is lower than setting transforms relieving haperacidity;
The pre-inversion absorption system, be used for to contain the flue gas that the flue gas that equals the sulfur dioxide concentration value set at least is treated to the sulfur dioxide concentration value that is lower than setting, and the flue gas of the sulfur dioxide concentration value that is lower than setting after will handling mixes with the flue gas that equals the sulfur dioxide concentration value set at least of desiring to enter host system, is lower than set(ting)value so that finally enter the sulfur dioxide concentration value of the flue gas in the host system.
2. the acid making system that contains the high density sulfur dioxide flue gas that is applicable to according to claim 1, it is characterized in that: described pre-inversion absorption system comprises pre-converter (30), the outlet side of pre-converter (30) links to each other with the inlet end of preabsorption tower (50), the flue gas that contains the sulfur dioxide concentration value that is lower than setting after preabsorption tower (50) is handled divides two-way to discharge, wherein one the tunnel is connected with the uptake of host system, mix with the flue gas that equals the sulfur dioxide concentration value set at least of desiring to enter host system, be lower than set(ting)value so that finally enter the sulfur dioxide concentration value of the flue gas in the host system; Another road is connected with the uptake of pre-converter (30), with desire to enter the flue gas that containing of pre-converter (30) equal the sulfur dioxide concentration value set at least and mix, and make the sulfur dioxide concentration value that finally enters the flue gas in the pre-converter (30) be lower than set(ting)value.
3. the acid making system that contains the high density sulfur dioxide flue gas that is applicable to according to claim 1, it is characterized in that: described pre-inversion absorption system comprises pre-converter (30), the outlet side of pre-converter (30) links to each other with the inlet end of preabsorption tower (50), the flue gas that contains the sulfur dioxide concentration value that is lower than setting after preabsorption tower (50) is handled is connected with the uptake of host system, mix with the flue gas that equals the sulfur dioxide concentration value set at least of desiring to enter host system, be lower than set(ting)value so that finally enter the sulfur dioxide concentration value of the flue gas in the host system; Also be provided with blast pipe (80) on the uptake of described pre-converter (30) with air communication, this blast pipe (80) is introduced diluent air and is desired to enter the flue gas that containing of pre-converter (30) equal the sulfur dioxide concentration value set at least and mix, and the feasible sulfur dioxide concentration value that finally enters the flue gas in the pre-converter (30) is lower than set(ting)value.
4. the acid making system that contains the high density sulfur dioxide flue gas that is applicable to according to claim 2 is characterized in that: the uptake of described pre-converter (30) also is provided with the blast pipe (80) with air communication.
5. according to claim 2 or the 3 or 4 described acid making systems that contain the high density sulfur dioxide flue gas that are applicable to, it is characterized in that: described pre-inversion absorption system also comprises and is delivered to the pre-inversion blower fan (10) that pre-converter (30) is handled with containing the flue gas that equals the sulfur dioxide concentration value set at least.
6. the acid making system that contains the high density sulfur dioxide flue gas that is applicable to according to claim 5, it is characterized in that: the air intake of described pre-inversion blower fan (10) is connected with the uptake of host system, is delivered to pre-converter (30) with the flue gas that equals the sulfur dioxide concentration value set at least that will desire to enter host system by pre-inversion blower fan (10) and handles.
7. the acid making system that contains the high density sulfur dioxide flue gas that is applicable to according to claim 6 is characterized in that: the described sulfur dioxide concentration value that finally enters the sulfur dioxide concentration value of the flue gas in the host system and finally enter the flue gas in the pre-converter all is lower than 13%.
8. the acid making system that contains the high density sulfur dioxide flue gas that is applicable to according to claim 6 is characterized in that: described pre-inversion absorption system also comprises first heat exchanger (20) and second heat exchanger (40); Described first heat exchanger (20) makes and to carry out heat exchange between the flue gas handled through pre-converter (30) and the flue gas of desiring to enter pre-converter (30), described second heat exchanger (40) make pass through successively that pre-converter (30) is handled and the flue gas of first heat exchanger (20) heat exchange and process preabsorption tower (50) processing after and the flue gas of desiring to enter host system between carry out heat exchange.
9. the acid making system that contains the high density sulfur dioxide flue gas that is applicable to according to claim 6 is characterized in that: the outlet end of described preabsorption tower (50) is provided with preabsorption pump groove (60) and the preabsorption acid cooler (70) that links to each other successively.
10. according to claim 3 or the 4 described acid making systems that contain the high density sulfur dioxide flue gas that are applicable to, it is characterized in that: described and blast pipe (80) air communication is provided with dry air tower (90).
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| CN2011100009214A CN102079511B (en) | 2011-01-05 | 2011-01-05 | Acid making system suitable for high-concentration sulfur dioxide-containing flue gas |
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| CN2011100009214A CN102079511B (en) | 2011-01-05 | 2011-01-05 | Acid making system suitable for high-concentration sulfur dioxide-containing flue gas |
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| CN102079511A true CN102079511A (en) | 2011-06-01 |
| CN102079511B CN102079511B (en) | 2012-11-07 |
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Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103072956A (en) * | 2012-12-31 | 2013-05-01 | 中国瑞林工程技术有限公司 | Flue gas processing method and system |
| CN104084094A (en) * | 2014-07-17 | 2014-10-08 | 科洋环境工程（上海）有限公司 | Device for converting SO2 concentration and SO2 conversion system and method |
| CN104147923A (en) * | 2014-08-13 | 2014-11-19 | 铜陵有色金属集团股份有限公司金冠铜业分公司 | Method for treating low-concentration SO2 flue gas produced by anode furnace |
| CN104477853A (en) * | 2014-12-25 | 2015-04-01 | 湖南水口山有色金属集团有限公司 | Pre-reforming and pre-absorption technology for production expansion of acid preparation from lead smelting gas |
| CN106672919A (en) * | 2017-01-18 | 2017-05-17 | 长沙有色冶金设计研究院有限公司 | Acid making process and device adopting SO2 pre-reforming |
| CN107840313A (en) * | 2017-11-28 | 2018-03-27 | 江苏田润化工设备有限公司 | A kind of high concentration SO2Flue gas converts the method and device of extracting sulfuric acid |
| CN109095441A (en) * | 2017-06-20 | 2018-12-28 | 中国瑞林工程技术有限公司 | The method for preparing sulfuric acid |
| CN109592650A (en) * | 2017-09-30 | 2019-04-09 | 易门铜业有限公司 | A kind of high-concentration fume acid preparation method using pre-inversion pre-absorption |
| CN109761203A (en) * | 2019-03-04 | 2019-05-17 | 长沙有色冶金设计研究院有限公司 | A kind of high concentration SO2Convert acid-making process |
| CN110354622A (en) * | 2019-07-30 | 2019-10-22 | 易门铜业有限公司 | Flue gas removal of impurities and tail gas cleaning device in a kind of acid manufacturing processes |
| CN111362233A (en) * | 2020-04-14 | 2020-07-03 | 长沙有色冶金设计研究院有限公司 | Process high concentration SO2Pre-conversion process and device for smelting flue gas |
| CN112691461A (en) * | 2021-01-07 | 2021-04-23 | 曾茶香 | Industrial waste gas discharge device convenient for controlling discharge capacity |
| CN112875653A (en) * | 2021-02-06 | 2021-06-01 | 易门铜业有限公司 | Acid temperature and acid concentration balancing system and method for high-concentration flue gas acid making |
| CN114712979A (en) * | 2021-01-05 | 2022-07-08 | 中冶长天国际工程有限责任公司 | Rapid judgment of SO in flue gas purification process2Method and system for adsorption efficiency |
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| CN103072956A (en) * | 2012-12-31 | 2013-05-01 | 中国瑞林工程技术有限公司 | Flue gas processing method and system |
| CN103072956B (en) * | 2012-12-31 | 2015-04-15 | 中国瑞林工程技术有限公司 | Flue gas processing method and system |
| CN104084094A (en) * | 2014-07-17 | 2014-10-08 | 科洋环境工程（上海）有限公司 | Device for converting SO2 concentration and SO2 conversion system and method |
| CN104147923A (en) * | 2014-08-13 | 2014-11-19 | 铜陵有色金属集团股份有限公司金冠铜业分公司 | Method for treating low-concentration SO2 flue gas produced by anode furnace |
| CN104477853A (en) * | 2014-12-25 | 2015-04-01 | 湖南水口山有色金属集团有限公司 | Pre-reforming and pre-absorption technology for production expansion of acid preparation from lead smelting gas |
| CN106672919B (en) * | 2017-01-18 | 2019-08-09 | 长沙有色冶金设计研究院有限公司 | SO2Gas pre-inversion acid-making process and device |
| CN106672919A (en) * | 2017-01-18 | 2017-05-17 | 长沙有色冶金设计研究院有限公司 | Acid making process and device adopting SO2 pre-reforming |
| CN109095441A (en) * | 2017-06-20 | 2018-12-28 | 中国瑞林工程技术有限公司 | The method for preparing sulfuric acid |
| CN109592650A (en) * | 2017-09-30 | 2019-04-09 | 易门铜业有限公司 | A kind of high-concentration fume acid preparation method using pre-inversion pre-absorption |
| CN107840313A (en) * | 2017-11-28 | 2018-03-27 | 江苏田润化工设备有限公司 | A kind of high concentration SO2Flue gas converts the method and device of extracting sulfuric acid |
| CN109761203B (en) * | 2019-03-04 | 2021-07-02 | 长沙有色冶金设计研究院有限公司 | High-concentration SO2Conversion acid-making process |
| CN109761203A (en) * | 2019-03-04 | 2019-05-17 | 长沙有色冶金设计研究院有限公司 | A kind of high concentration SO2Convert acid-making process |
| CN110354622A (en) * | 2019-07-30 | 2019-10-22 | 易门铜业有限公司 | Flue gas removal of impurities and tail gas cleaning device in a kind of acid manufacturing processes |
| CN111362233A (en) * | 2020-04-14 | 2020-07-03 | 长沙有色冶金设计研究院有限公司 | Process high concentration SO2Pre-conversion process and device for smelting flue gas |
| CN111362233B (en) * | 2020-04-14 | 2021-07-02 | 长沙有色冶金设计研究院有限公司 | Process high concentration SO2Pre-conversion process and device for smelting flue gas |
| CN114712979A (en) * | 2021-01-05 | 2022-07-08 | 中冶长天国际工程有限责任公司 | Rapid judgment of SO in flue gas purification process2Method and system for adsorption efficiency |
| CN114712979B (en) * | 2021-01-05 | 2023-09-01 | 中冶长天国际工程有限责任公司 | Quick judging SO in flue gas purification process 2 Adsorption efficiency method and system |
| CN112691461A (en) * | 2021-01-07 | 2021-04-23 | 曾茶香 | Industrial waste gas discharge device convenient for controlling discharge capacity |
| CN112875653A (en) * | 2021-02-06 | 2021-06-01 | 易门铜业有限公司 | Acid temperature and acid concentration balancing system and method for high-concentration flue gas acid making |
| CN112875653B (en) * | 2021-02-06 | 2022-06-24 | 易门铜业有限公司 | Acid temperature and acid concentration balancing system and method for high-concentration flue gas acid making |
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| CN102079511B (en) | 2012-11-07 |
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