CN114870542A - Smoke waste gas treatment method for water film dust removal by using lime water - Google Patents
Smoke waste gas treatment method for water film dust removal by using lime water Download PDFInfo
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- CN114870542A CN114870542A CN202111298356.4A CN202111298356A CN114870542A CN 114870542 A CN114870542 A CN 114870542A CN 202111298356 A CN202111298356 A CN 202111298356A CN 114870542 A CN114870542 A CN 114870542A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 71
- 239000000428 dust Substances 0.000 title claims abstract description 60
- 239000002912 waste gas Substances 0.000 title claims abstract description 49
- 238000000034 method Methods 0.000 title claims abstract description 48
- AXCZMVOFGPJBDE-UHFFFAOYSA-L calcium dihydroxide Chemical compound [OH-].[OH-].[Ca+2] AXCZMVOFGPJBDE-UHFFFAOYSA-L 0.000 title claims abstract description 46
- 239000000779 smoke Substances 0.000 title claims abstract description 27
- 239000002893 slag Substances 0.000 claims abstract description 23
- 238000004062 sedimentation Methods 0.000 claims abstract description 21
- 238000006386 neutralization reaction Methods 0.000 claims abstract description 17
- 239000007921 spray Substances 0.000 claims abstract description 13
- 238000006477 desulfuration reaction Methods 0.000 claims abstract description 12
- 230000023556 desulfurization Effects 0.000 claims abstract description 12
- 238000007599 discharging Methods 0.000 claims abstract description 10
- 239000002351 wastewater Substances 0.000 claims abstract description 9
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims description 40
- 238000000605 extraction Methods 0.000 claims description 37
- 239000002253 acid Substances 0.000 claims description 17
- 239000007789 gas Substances 0.000 claims description 14
- 238000003860 storage Methods 0.000 claims description 10
- 238000009423 ventilation Methods 0.000 claims description 8
- 238000000746 purification Methods 0.000 claims description 7
- 239000002440 industrial waste Substances 0.000 claims description 6
- 230000002378 acidificating effect Effects 0.000 claims description 5
- 238000001514 detection method Methods 0.000 claims description 4
- 239000007788 liquid Substances 0.000 claims description 4
- 239000003595 mist Substances 0.000 claims description 4
- 230000001376 precipitating effect Effects 0.000 claims description 4
- 238000001556 precipitation Methods 0.000 claims description 4
- 230000029058 respiratory gaseous exchange Effects 0.000 claims description 4
- 239000010865 sewage Substances 0.000 claims description 4
- 238000003756 stirring Methods 0.000 claims description 4
- 239000006228 supernatant Substances 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 3
- 239000012528 membrane Substances 0.000 claims 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 abstract description 4
- 239000003546 flue gas Substances 0.000 abstract description 4
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 230000007774 longterm Effects 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 229910052761 rare earth metal Inorganic materials 0.000 description 3
- 150000002910 rare earth metals Chemical class 0.000 description 3
- 239000000463 material Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- PXMLGXWGOVHNQX-UHFFFAOYSA-N [Y].[Eu] Chemical compound [Y].[Eu] PXMLGXWGOVHNQX-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000005286 illumination Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
- B01D47/06—Spray cleaning
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/46—Removing components of defined structure
- B01D53/48—Sulfur compounds
- B01D53/50—Sulfur oxides
- B01D53/501—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound
- B01D53/502—Sulfur oxides by treating the gases with a solution or a suspension of an alkali or earth-alkali or ammonium compound characterised by a specific solution or suspension
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F2001/007—Processes including a sedimentation step
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/18—Nature of the water, waste water, sewage or sludge to be treated from the purification of gaseous effluents
-
- 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
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Environmental & Geological Engineering (AREA)
- General Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Biomedical Technology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a smoke and dust waste gas treatment method for water film dust removal by using lime water, which comprises the following steps: the method comprises the following specific steps: step (I): discharging the waste gas into a spray type water film dust removal device for desulfurization and dust removal, wherein the water added by the middle spray type water film dust removal device is lime water; step (II): removing neutralization slag from the wastewater subjected to water film desulfurization and dust removal through a sedimentation tank; step (three): then enters a clean water pool and is recycled after adjusting the pH value to be alkaline by lime water. The method for treating the smoke dust and the waste gas by using the lime water to remove the dust through the water film has the advantages that in view of the fact that the lime water is used for removing the dust through the water film, the desulfurization efficiency can be improved, and the operation difficulty and the treatment cost cannot be greatly increased, the lime water is used for removing the dust through the water film on the boiler flue gas SO as to reduce the emission of SO2, the influence on the environment is reduced, the dust removing water is recycled and is not discharged outside, and the method has the characteristics of high treatment efficiency, simplicity in operation and management, long service life, simple structure, low energy consumption and wide application range.
Description
Technical Field
The invention relates to the related technical field of smoke waste gas treatment, in particular to a smoke waste gas treatment method for water film dust removal by using lime water.
Background
Since the rare earth metals such as yttrium europium and the like are used for manufacturing fluorescent powder, the rare earth luminescent material is developed rapidly and becomes a support material in the fields of display, illumination, photoelectric devices and the like. Due to production technology and use factors, a large amount of fluorescent powder waste materials are generated in the production link of rare earth fluorescent powder and the application waste link of an energy-saving lamp and a display screen, a large amount of smoke waste gas is generated in the production process, and the smoke waste gas contains a large amount of acidic substances and other harmful substances, so the smoke waste gas needs to be discharged after being treated.
Disclosure of Invention
The invention aims to provide a smoke waste gas treatment method for water film dust removal by using lime water, so as to solve the problems that the existing smoke waste gas treatment method is low in efficiency, difficult to operate, high in investment cost and limited in use.
In order to achieve the purpose, the invention provides the following technical scheme: a boiler smoke and dust waste gas treatment method for water film dedusting by using lime water comprises the following specific steps:
step (I): discharging the waste gas into a spray type water film dust removal device for desulfurization and dust removal;
step (II): removing neutralization slag from the wastewater subjected to water film desulfurization and dust removal through a sedimentation tank;
step (three): then enters a clean water pool and is recycled after adjusting the pH value to be alkaline by lime water.
Preferably, the water added by the spray-type water film dust removal device in the step (one) is lime water.
Preferably, the standing time in the sedimentation tank in the step (two) is 3-4 hours, wherein the neutralization slag is removed in a salvage mode, and the concrete steps are as follows:
(1) firstly, the sewage enters the bottom of the sedimentation tank through a fishing net with a scraper;
(2) the scraper is pushed by a power device to enable the scraper to salvage the neutralization slag scraper at the bottom of the sedimentation tank into a net, so that the neutralization slag scraper can be used back and forth;
(3) and taking out the fished neutralized slag, and discharging the neutralized slag into a designated collection box for subsequent use.
Preferably, the pH of the internal liquid is adjusted in the step (iii) and then detected by a pH detection device, and if the pH is acidic, the addition of the limewater is continued, and if the pH is alkaline, the addition of the limewater is stopped.
The scheme also provides an electric furnace smoke and dust waste gas treatment method for water film dust removal by using lime water, which comprises the following specific steps:
step (IV): firstly, adopting an air suction cover to trap smoke dust;
step (V): then dedusting by a spray type water film dedusting device;
step (six): precipitating the wastewater subjected to water film dust removal by a sedimentation tank;
step (seven): and finally, the supernatant is recycled in a circulating water pool.
The scheme also provides an industrial waste gas treatment method for water film dust removal by using lime water, which comprises the following specific steps:
and (eight): acid mixing process in acid dissolving and extracting process, and waste gas precipitation, the specific discharge situation is shown in figure 3;
step (nine): HCl waste gas dissipated by the extraction tank;
step (ten): the hydrochloric acid storage tank is filled with large and small breathing waste gas.
Preferably, the step (nine) adopts a fully-closed extraction tank, the feeding and stirring of the extraction tank are sealed by water seal, so that the extraction equipment is in a long-term sealed operation state, the conventional extraction tank is in direct open contact with air, a large amount of hydrochloric acid and an organic extractant are evaporated, so that HCl gas in each extraction tank of an extraction workshop is emitted into the air of the workshop disorganically and rarely, the disorganized emission amount of the extraction tank is about 21.6kg/a, namely 0.003kg/h, and ventilation measures are taken to ensure that the HCl concentration in the air of the extraction workshop is less than 15mg/m3 and the ventilation frequency is 8 times/day.
Preferably, in the step (ten), in order to reduce the HCl waste gas generated in the process of feeding the storage tank, i.e. discharging the acid, the hydrochloric acid feeding tank waste gas is connected to an acid mist purification tower for purification, so as to reduce the pollution of the hydrochloric acid feeding tank waste gas to the atmospheric environment.
Compared with the prior art, the invention has the beneficial effects that: the method for treating the smoke dust and the waste gas by using the lime water to remove the dust through the water film has the advantages that in view of the fact that the lime water is used for removing the dust through the water film, the desulfurization efficiency can be improved, and the operation difficulty and the treatment cost cannot be greatly increased, the lime water is used for removing the dust through the water film on the boiler flue gas SO as to reduce the emission of SO2, the influence on the environment is reduced, the dust removing water is recycled and is not discharged outside, and the method has the characteristics of high treatment efficiency, simplicity in operation and management, long service life, simple structure, low energy consumption and wide application range.
Drawings
FIG. 1 is a flow chart of a boiler flue gas treatment process of the present invention;
FIG. 2 is a flow chart of the electric furnace flue gas treatment process of the present invention;
FIG. 3 is a summary of the process exhaust gas organized emissions of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
a boiler smoke and dust waste gas treatment method for water film dedusting by using lime water comprises the following specific steps:
step (I): discharging the waste gas into a spray type water film dust removal device for desulfurization and dust removal; wherein the water added by the spray type water film dust removal device is lime water;
step (II): removing neutralization slag from the wastewater subjected to water film desulfurization and dust removal through a sedimentation tank; wherein the standing time in the sedimentation tank is 3 hours, wherein the neutralization slag is removed in a salvage mode, and the concrete steps are as follows:
(1) firstly, the sewage enters the bottom of the sedimentation tank through a fishing net with a scraper;
(2) the scraper is pushed by a power device to enable the scraper to salvage the neutralization slag scraper at the bottom of the sedimentation tank into a net, so that the neutralization slag scraper can be used back and forth;
(3) and taking out the fished neutralized slag, and discharging the neutralized slag into a designated collection box for subsequent use.
Step (three): and then the mixture enters a clean water tank, the pH value is adjusted to be alkaline by lime water and then the mixture is recycled, wherein the pH value is adjusted to be the pH value, the internal liquid is detected by a pH value detection device, when the pH value is acidic, lime water is continuously added, and when the pH value is alkaline, the lime water is stopped being added.
The scheme also provides an electric furnace smoke and dust waste gas treatment method for water film dust removal by using lime water, which comprises the following specific steps:
step (IV): firstly, adopting an air suction cover to trap smoke dust;
step (V): then dedusting by a spray type water film dedusting device;
step (six): precipitating the wastewater subjected to water film dust removal by a sedimentation tank;
step (seven): and finally, the supernatant is recycled in a circulating water pool.
The scheme also provides an industrial waste gas treatment method for water film dust removal by using lime water, which comprises the following specific steps:
and (eight): the specific discharge conditions of the acid preparation process and the precipitation waste gas in the acid dissolution and extraction processes are shown in figure 3:
step (nine): HCl waste gas dissipated by the extraction tank; the extraction plant is in a long-term sealed operation state by adopting a fully-closed extraction tank, feeding and stirring of the extraction tank are sealed by water seal, a large amount of hydrochloric acid and an organic extractant are evaporated due to direct open contact of a conventional extraction tank and air, so that HCl gas in each extraction tank of an extraction workshop is emitted to the air of the workshop disorganically and rarely, the unstructured emission of the extraction tank is about 21.6kg/a, namely 0.003kg/h, ventilation measures are taken to ensure that the HCl concentration in the air of the extraction workshop is less than 15mg/m3, and the ventilation frequency is 8 times/day.
Step (ten): the hydrochloric acid storage tank is used for storing large and small breathing waste gas, wherein in order to reduce HCl waste gas generated in the process of acid unloading when the storage tank is fed, the waste gas of the hydrochloric acid entering the storage tank is connected into an acid mist purification tower for purification so as to reduce the pollution of the waste gas to the atmospheric environment.
Example two:
a boiler smoke and dust waste gas treatment method for water film dedusting by using lime water comprises the following specific steps:
step (I): discharging the waste gas into a spray type water film dust removal device for desulfurization and dust removal; wherein the water added by the spray type water film dust removal device is lime water;
step (II): removing neutralization slag from the wastewater subjected to water film desulfurization and dust removal through a sedimentation tank; wherein the standing time in the sedimentation tank is 4 hours, wherein the neutralization slag is removed in a salvage mode, and the concrete steps are as follows:
(1) firstly, the sewage enters the bottom of the sedimentation tank through a fishing net with a scraper;
(2) the scraper is manually pushed to enable the scraper to scrape the neutralization residue at the bottom of the sedimentation tank into a fishing net, so that the neutralization residue is used back and forth;
(3) and taking out the fished neutralized slag, and discharging the neutralized slag into a designated collection box for subsequent use.
Step (three): and then the mixture enters a clean water tank, the pH value is adjusted to be alkaline by lime water and then the mixture is recycled, wherein the pH value is adjusted to be the pH value, the internal liquid is detected by a pH value detection device, when the pH value is acidic, lime water is continuously added, and when the pH value is alkaline, the lime water is stopped being added.
The scheme also provides an electric furnace smoke and dust waste gas treatment method for water film dust removal by using lime water, which comprises the following specific steps:
step (IV): firstly, adopting an air suction cover to trap smoke dust;
step (V): then dedusting by a spray type water film dedusting device;
step (six): precipitating the wastewater subjected to water film dust removal by a sedimentation tank;
step (seven): and finally, the supernatant is recycled in a circulating water pool.
The scheme also provides an industrial waste gas treatment method for water film dust removal by using lime water, which comprises the following specific steps:
and (eight): acid mixing process in acid dissolving and extracting process, and waste gas precipitation, wherein the specific discharge condition is shown in figure 3;
step (nine): HCl waste gas dissipated by the extraction tank; the extraction plant is in a long-term sealed operation state by adopting a fully-closed extraction tank, feeding and stirring of the extraction tank are sealed by water seal, a large amount of hydrochloric acid and an organic extractant are evaporated due to direct open contact of a conventional extraction tank and air, so that HCl gas in each extraction tank of an extraction workshop is emitted to the air of the workshop disorganically and rarely, the unstructured emission of the extraction tank is about 21.6kg/a, namely 0.003kg/h, ventilation measures are taken to ensure that the HCl concentration in the air of the extraction workshop is less than 25mg/m3, and the ventilation frequency is 10 times/day.
Step (ten): the hydrochloric acid storage tank is used for storing large and small breathing waste gas, wherein in order to reduce HCl waste gas generated in the process of acid unloading when the storage tank is fed, the waste gas of the hydrochloric acid entering the storage tank is connected into an acid mist purification tower for purification so as to reduce the pollution of the waste gas to the atmospheric environment.
It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in the process, method, article, or apparatus that comprises the element.
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 various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (8)
1. A boiler smoke dust waste gas treatment method for water film dedusting by using lime water is characterized by comprising the following specific steps:
step (I): discharging the waste gas into a spray type water film dust removal device for desulfurization and dust removal;
step (II): removing neutralization slag from the wastewater subjected to water film desulfurization and dust removal through a sedimentation tank;
step (three): then enters a clean water pool and is recycled after adjusting the pH value to be alkaline by lime water.
2. The method for treating boiler smoke and exhaust gas by water film dedusting with lime water as claimed in claim 1, is characterized in that: the water added by the spray type water film dust removal device in the step (I) is lime water.
3. The method for treating boiler smoke and exhaust gas by water film dedusting with lime water as claimed in claim 1, is characterized in that: and (2) standing for 3-4 hours in the sedimentation tank in the step (II), wherein the neutralization slag is removed in a salvage mode, and the concrete steps are as follows:
(1) firstly, the sewage enters the bottom of the sedimentation tank through a fishing net with a scraper;
(2) the scraper is pushed by a power device to enable the scraper to salvage the neutralization slag scraper at the bottom of the sedimentation tank into a net, so that the neutralization slag scraper can be used back and forth;
(3) and taking out the fished neutralized slag, and discharging the neutralized slag into a designated collection box for subsequent use.
4. The method for treating boiler smoke and exhaust gas by water film dedusting with lime water as claimed in claim 1, is characterized in that: and (3) detecting the internal liquid by using a pH value detection device after the pH value is adjusted in the step (three), continuously adding the lime water when the pH value is acidic, and stopping adding the lime water when the pH value is alkaline.
5. The scheme also provides an electric furnace smoke and dust waste gas treatment method for water film dust removal by using lime water, which is characterized by comprising the following specific steps of:
step (IV): firstly, adopting an air suction cover to trap smoke dust;
step (V): then dedusting by a spray type water film dedusting device;
step (six): precipitating the wastewater subjected to water film dust removal by a sedimentation tank;
step (seven): and finally, the supernatant is recycled in a circulating water pool.
6. The scheme also provides a method for treating industrial waste gas by using lime water to remove dust by using a water film, which is characterized by comprising the following specific steps of:
and (eight): acid mixing process in acid dissolving and extracting process, and waste gas precipitation, wherein the specific discharge condition is shown in figure 3;
step (nine): HCl waste gas dissipated by the extraction tank;
step (ten): the hydrochloric acid storage tank is filled with large and small breathing waste gas.
7. The method for treating industrial waste gas by water membrane dedusting with lime water as claimed in claim 1, is characterized in that: in the step (nine), a fully-closed extraction tank is adopted, feeding and stirring of the extraction tank are sealed by water seal, so that the extraction equipment is in a long-year sealed operation state, a conventional extraction tank is in direct open contact with air, a large amount of hydrochloric acid and an organic extractant are evaporated, HCl gas in each extraction tank of an extraction workshop is emitted into the air of the workshop disorganically and rarely, the unstructured emission of the extraction tank is about 21.6kg/a, namely 0.003kg/h, ventilation measures are adopted to ensure that the HCl concentration in the air of the extraction workshop is less than 15mg/m3, and the ventilation frequency is 8 times/day.
8. The method for treating industrial waste gas by water membrane dedusting with lime water as claimed in claim 1, is characterized in that: and (ten) in order to reduce HCl waste gas generated in the process of acid unloading when the storage tank is fed, the waste gas generated in the process of acid unloading is introduced into the acid mist purification tower to purify, so that the pollution of the waste gas to the atmospheric environment is reduced.
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| CN202111298356.4A CN114870542A (en) | 2021-11-04 | 2021-11-04 | Smoke waste gas treatment method for water film dust removal by using lime water |
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| CN202111298356.4A CN114870542A (en) | 2021-11-04 | 2021-11-04 | Smoke waste gas treatment method for water film dust removal by using lime water |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103041685A (en) * | 2012-10-15 | 2013-04-17 | 天津市亿博制钢有限公司 | Sulfur and dust removing method for boiler |
| CN208145661U (en) * | 2018-01-31 | 2018-11-27 | 赣州齐畅新材料有限公司 | A kind of Extraction of rare eart emission-control equipment |
| CN211328868U (en) * | 2019-10-15 | 2020-08-25 | 江苏环球环境工程集团有限公司 | High-efficient gas desulfurization device |
| CN111804111A (en) * | 2020-08-05 | 2020-10-23 | 北京高能时代环境技术股份有限公司 | Resourceful treatment system and method for waste incineration smoke dust |
-
2021
- 2021-11-04 CN CN202111298356.4A patent/CN114870542A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103041685A (en) * | 2012-10-15 | 2013-04-17 | 天津市亿博制钢有限公司 | Sulfur and dust removing method for boiler |
| CN208145661U (en) * | 2018-01-31 | 2018-11-27 | 赣州齐畅新材料有限公司 | A kind of Extraction of rare eart emission-control equipment |
| CN211328868U (en) * | 2019-10-15 | 2020-08-25 | 江苏环球环境工程集团有限公司 | High-efficient gas desulfurization device |
| CN111804111A (en) * | 2020-08-05 | 2020-10-23 | 北京高能时代环境技术股份有限公司 | Resourceful treatment system and method for waste incineration smoke dust |
Non-Patent Citations (1)
| Title |
|---|
| 邱定蕃等: "《稀贵金属冶金新进展》", 冶金工业出版社, pages: 58 * |
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