CN108970337A - Reduce dry method Sulphuric acid device wastewater discharge system and its application method - Google Patents
Reduce dry method Sulphuric acid device wastewater discharge system and its application method Download PDFInfo
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- CN108970337A CN108970337A CN201810832422.3A CN201810832422A CN108970337A CN 108970337 A CN108970337 A CN 108970337A CN 201810832422 A CN201810832422 A CN 201810832422A CN 108970337 A CN108970337 A CN 108970337A
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- Prior art keywords
- tower
- dry method
- sulphuric acid
- flue gas
- sulfuric acid
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- 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
- B01D53/14—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 by absorption
- B01D53/18—Absorbing units; Liquid distributors therefor
-
- 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
- B01D53/14—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 by absorption
- B01D53/1456—Removing acid components
- B01D53/1481—Removing sulfur dioxide or sulfur trioxide
-
- 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
- C02F1/02—Treatment of water, waste water, or sewage by heating
- C02F1/04—Treatment of water, waste water, or sewage by heating by distillation or evaporation
- C02F1/048—Purification of waste water by evaporation
-
- 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
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Treating Waste Gases (AREA)
Abstract
The invention discloses a kind of reduction dry method Sulphuric acid device wastewater discharge system and its application methods, the system includes dry method sulphuric acid plant, concentrated sulfuric acid absorption tower, conditioning Tower, desulfurizing tower, demister, dry method sulphuric acid plant, concentrated sulfuric acid absorption tower are all connected with conditioning Tower, conditioning Tower is connected with desulfurizing tower, and desulfurizing tower is connected with demister.Water in sewage can be become water vapour by the present invention, be discharged into atmosphere, reduce blowdown flow rate.
Description
Technical field
The present invention relates to a kind of exhaust system and its application methods, useless more particularly to a kind of reduction dry method Sulphuric acid device
Water discharge amount system and its application method.
Background technique
Currently, generating a large amount of dilute sulfuric acids in domestic dry method Sulphuric acid production process, considerably increasing the charges for disposing pollutants of enterprise
With.Meanwhile sulfuric acid absorption tower exports over dry flue gas when being desulfurized, and can absorb large quantity of moisture, and desulfurizing tower is caused largely to mend
Water.These not only cause a large amount of waste in resource, also increase the processing cost of manufacturing enterprise.And due to dilute sulfuric acid acid
Concentration is not high, domestic at present to be neutralized substantially using lye, or is sent to sewage treatment plant's centralized processing, at high cost.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of reduction dry method Sulphuric acid device wastewater discharge system and
Water in sewage can be become water vapour by its application method, be discharged into atmosphere, reduce blowdown flow rate.
The present invention is to solve above-mentioned technical problem by following technical proposals: a kind of reduction dry method Sulphuric acid device is useless
Water discharge amount system comprising dry method sulphuric acid plant, concentrated sulfuric acid absorption tower, conditioning Tower, desulfurizing tower, demister, dry method relieving haperacidity dress
Set, concentrated sulfuric acid absorption tower is all connected with conditioning Tower, conditioning Tower is connected with desulfurizing tower, and desulfurizing tower is connected with demister.
Preferably, concentrated sulfuric acid absorption tower exiting flue gas can not be heated or be heated.
Preferably, the dry method Sulphuric acid device is the sulfuric acid production plant that can generate the waste water containing dilute sulfuric acid.
Preferably, concentrated sulfuric acid absorption tower exiting flue gas is over dry flue gas, and water content is less than 1g/Nm3.
Preferably, the conditioning Tower makes water become gaseous state for controlling temperature at 65 degrees Celsius, and desulfurizing tower is for removing two
Sulfur oxide and part acid mist simultaneously control its temperature at 55 degrees Celsius or more, and demister is for further removing aerosol and particle
Object, so that the reduction of quantity of wastewater effluent is realized, so that reach zero-emission.
Preferably, the conditioning Tower and desulfurizing tower can be merged into an equipment.
The present invention also provides a kind of application method for reducing dry method Sulphuric acid device wastewater discharge system, feature exists
In comprising following steps:
Waste water in dry method sulphuric acid plant is entered conditioning Tower and becomes gaseous state by step 1；
Step 2, the over dry flue gas that concentrated sulfuric acid absorption tower comes out enter conditioning Tower and are humidified, or by heat exchanger over dry flue gas
Conditioning Tower is entered back into after heating to be humidified；
Step 3, the flue gas being humidified in step 2 enter desulfurizing tower, keep the SO2 content of discharge up to standard；
Step 4, final flue gas enter demister and further remove aerosol and particle mist in flue gas, qualified discharge.
Preferably, the over dry flue gas come out in the step 2 using concentrated sulfuric acid absorption tower exit, takes away dry method relieving haperacidity
The waste water moisture of device outlet.
The positive effect of the present invention is that: the present invention can be by utilizing dry method sulphuric acid plant, concentrated sulfuric acid absorption tower
The over dry flue gas in exit, takes away the waste water moisture of dry method sulphuric acid plant outlet, to reduce dry method Sulphuric acid device waste water row
It high-volume measures, while flue gas is also humidified and is discharged to atmosphere；Water in sewage is become water vapour by the present invention, is discharged into atmosphere, the row of reduction
Dirt amount, reduces the rate of water make-up of desulfurizing tower, this will greatly save resource, and reduce the processing cost of manufacturing enterprise.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention.
Specific embodiment
Present pre-ferred embodiments are provided with reference to the accompanying drawing, in order to explain the technical scheme of the invention in detail.
As shown in Figure 1, the present invention reduce dry method Sulphuric acid device wastewater discharge system include dry method sulphuric acid plant 1, it is dense
Sulfuric acid absorption tower 2, conditioning Tower 3, desulfurizing tower 4, demister 5, dry method sulphuric acid plant 1, concentrated sulfuric acid absorption tower 2 all with 3 phase of conditioning Tower
Even, conditioning Tower 3 is connected with desulfurizing tower 4, and desulfurizing tower 4 is connected with demister 5.
2 exiting flue gas of concentrated sulfuric acid absorption tower can not be heated or be heated so that it is convenient to heat.
The dry method Sulphuric acid device is the sulfuric acid production plant that can generate the waste water containing dilute sulfuric acid.
Concentrated sulfuric acid absorption tower exiting flue gas is over dry flue gas, and water content is less than 1g/Nm3.
The conditioning Tower makes water become gaseous state for controlling temperature at 65 degrees Celsius, desulfurizing tower for remove sulfur dioxide and
Part acid mist simultaneously controls its temperature at 55 degrees Celsius or more, and demister is for further removing aerosol and particulate matter, thus real
Show the reduction of quantity of wastewater effluent, so that reach zero-emission.
6, dry method Sulphuric acid device wastewater discharge system is reduced as described in claim 1, which is characterized in that the increasing
Wet tower and desulfurizing tower can be merged into an equipment.
The working principle that the present invention reduces dry method Sulphuric acid device wastewater discharge system is as follows: dry method sulphuric acid plant 1, dense
Sulfuric acid absorption tower 2 all for purification diluted sulfric acid and filters and goes chalk dust removing.Conditioning Tower 3 becomes water at 65 degrees Celsius for controlling temperature
At gaseous state, desulfurizing tower 4 for removing sulfur dioxide and part acid mist and controlling its temperature at 55 degrees Celsius or more, use by demister 5
In further removing aerosol and particulate matter, to realize sewage zero-discharge.
The present invention reduce dry method Sulphuric acid device wastewater discharge system application method the following steps are included:
Waste water in dry method sulphuric acid plant 1 is entered conditioning Tower 3 and becomes gaseous state by step 1；
Step 2, the over dry flue gas that concentrated sulfuric acid absorption tower 2 comes out enter conditioning Tower 3 and are humidified, or by heat exchanger over dry cigarette
Conditioning Tower is entered back into after gas heating to be humidified；
Step 3, the flue gas being humidified in step 2 enter desulfurizing tower 4, make the SO2(sulfur dioxide of discharge) content is up to standard；
Step 4, final flue gas enter the aerosol and particle mist in the further removing flue gas of demister 5, qualified discharge.
Water in the step 1 dry method sulphuric acid plant 1 is waste water so that it is convenient to which conditioning Tower 3 is handled, to reduce
The discharge amount of waste water.
The over dry flue gas that 2 exit of concentrated sulfuric acid absorption tower is utilized in the step 2, takes away 1 outlet of dry method sulphuric acid plant
Waste water moisture, to reduce dry method Sulphuric acid device wastewater discharge amount, while flue gas is also humidified and is discharged to atmosphere.
By taking the double conversion double absorption dry method Sulphuric acid device of 200,000 tons/year of scales as an example.Device at least to generate per hour 5 tons it is dilute
Sulfuric acid, and tail gas absorber supplements 2.4 tons of clear water again.For this purpose, first inhaling the flue gas of tower outlet by converting and roasting work for two
Duan Jiare then passes to conditioning Tower.Purification diluted sulfric acid first filters off wherein dust, then sprays into conditioning Tower, flue-gas temperature control simultaneously
System is at 65 DEG C, and at this moment all water become gaseous state.Flue gas is then passed through desulfurizing tower and removes sulfur dioxide and part acid mist therein, cigarette
Temperature degree is controlled at 55 DEG C or more.Then flue gas enters demister, further removes aerosol and particulate matter, final row up to standard
It puts, purification section also achieves sewage zero-discharge.
The present invention can take away dry method by the over dry flue gas using dry method sulphuric acid plant, concentrated sulfuric acid absorption tower exit
The waste water moisture of sulphuric acid plant outlet, to reduce dry method Sulphuric acid device wastewater discharge amount, while the flue gas also row of being humidified
To atmosphere；Water in sewage is become water vapour by the present invention, is discharged into atmosphere, is reduced blowdown flow rate, is reduced the rate of water make-up of desulfurizing tower,
This will greatly save resource, and reduce the processing cost of manufacturing enterprise.
Particular embodiments described above, the technical issues of to solution of the invention, technical scheme and beneficial effects carry out
It is further described, it should be understood that the above is only a specific embodiment of the present invention, is not limited to
The present invention, all within the spirits and principles of the present invention, any modification, equivalent substitution, improvement and etc. done should be included in this
Within the protection scope of invention.
Claims (8)
1. a kind of reduction dry method Sulphuric acid device wastewater discharge system, which is characterized in that it includes dry method sulphuric acid plant, dense sulphur
Acid absorption column, conditioning Tower, desulfurizing tower, demister, dry method sulphuric acid plant, concentrated sulfuric acid absorption tower are all connected with conditioning Tower, conditioning Tower
It is connected with desulfurizing tower, desulfurizing tower is connected with demister.
2. reducing dry method Sulphuric acid device wastewater discharge system as described in claim 1, which is characterized in that the concentrated sulfuric acid
Absorption tower exiting flue gas can not be heated or be heated.
3. reducing dry method Sulphuric acid device wastewater discharge system as described in claim 1, which is characterized in that the dry method system
Sulfuric acid apparatus is the sulfuric acid production plant that can generate the waste water containing dilute sulfuric acid.
4. reducing dry method Sulphuric acid device wastewater discharge system as described in claim 1, which is characterized in that the concentrated sulfuric acid
Absorption tower exiting flue gas is over dry flue gas, and water content is less than 1g/Nm3.
5. reducing dry method Sulphuric acid device wastewater discharge system as described in claim 1, which is characterized in that the conditioning Tower
Water is set to become gaseous state at 65 degrees Celsius for controlling temperature, desulfurizing tower is for removing sulfur dioxide and part acid mist and controlling its temperature
Degree is at 55 degrees Celsius or more, and demister is for further removing aerosol and particulate matter, to realize the drop of quantity of wastewater effluent
It is low, so that reach zero-emission.
6. reducing dry method Sulphuric acid device wastewater discharge system as described in claim 1, which is characterized in that the conditioning Tower
It can be merged into an equipment with desulfurizing tower.
7. a kind of application method for reducing dry method Sulphuric acid device wastewater discharge system, which is characterized in that it includes following step
It is rapid:
Waste water in dry method sulphuric acid plant is entered conditioning Tower and becomes gaseous state by step 1；
Step 2, the over dry flue gas that concentrated sulfuric acid absorption tower comes out enter conditioning Tower and are humidified, or by heat exchanger over dry flue gas
Conditioning Tower is entered back into after heating to be humidified；
Step 3, the flue gas being humidified in step 2 enter desulfurizing tower, keep the SO2 content of discharge up to standard；
Step 4, final flue gas enter demister and further remove aerosol and particle mist in flue gas, qualified discharge.
8. reducing the application method of dry method Sulphuric acid device wastewater discharge system as claimed in claim 7, which is characterized in that
The over dry flue gas come out in the step 2 using concentrated sulfuric acid absorption tower exit, takes away the waste water water of dry method sulphuric acid plant outlet
Point.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810832422.3A CN108970337A (en) | 2018-07-26 | 2018-07-26 | Reduce dry method Sulphuric acid device wastewater discharge system and its application method |
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| CN201810832422.3A CN108970337A (en) | 2018-07-26 | 2018-07-26 | Reduce dry method Sulphuric acid device wastewater discharge system and its application method |
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| CN108970337A true CN108970337A (en) | 2018-12-11 |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1482057A (en) * | 2003-05-16 | 2004-03-17 | 河南豫光金铅股份有限公司 | Method for preparing sulfuric acid by using five-section catalyst two-conversion and two-absorption of flue gas of lead bottom blowing furnace |
| CN201823471U (en) * | 2010-09-08 | 2011-05-11 | 江苏揽山环境科技有限公司 | Waste water zero emission wet-method flue-gas desulfurization device |
| JP2016159239A (en) * | 2015-03-02 | 2016-09-05 | 三菱日立パワーシステムズ株式会社 | Recovery device and recovery method of carbon dioxide |
| CN106430116A (en) * | 2016-08-24 | 2017-02-22 | 金能科技股份有限公司 | Method for preparing sulfuric acid by utilizing sulfur-containing waste liquid generated during gas wet type oxidation process |
| CN206027407U (en) * | 2016-08-29 | 2017-03-22 | 中冶焦耐(大连)工程技术有限公司 | Sulphuric acid tail gas processing device |
| CN106925096A (en) * | 2017-03-28 | 2017-07-07 | 中国华电科工集团有限公司 | A kind of coal steam-electric plant smoke sulfur dioxide, dust and waste water coprocessing system |
| CN206621985U (en) * | 2017-03-28 | 2017-11-10 | 中国华电科工集团有限公司 | A kind of coal steam-electric plant smoke sulfur dioxide and waste water coprocessing system |
| CN107934920A (en) * | 2017-11-29 | 2018-04-20 | 中石化南京工程有限公司 | A kind of device of Waste Sulfuric Acid and hydrogen sulfide waste gas integrated treatment |
-
2018
- 2018-07-26 CN CN201810832422.3A patent/CN108970337A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1482057A (en) * | 2003-05-16 | 2004-03-17 | 河南豫光金铅股份有限公司 | Method for preparing sulfuric acid by using five-section catalyst two-conversion and two-absorption of flue gas of lead bottom blowing furnace |
| CN201823471U (en) * | 2010-09-08 | 2011-05-11 | 江苏揽山环境科技有限公司 | Waste water zero emission wet-method flue-gas desulfurization device |
| JP2016159239A (en) * | 2015-03-02 | 2016-09-05 | 三菱日立パワーシステムズ株式会社 | Recovery device and recovery method of carbon dioxide |
| CN106430116A (en) * | 2016-08-24 | 2017-02-22 | 金能科技股份有限公司 | Method for preparing sulfuric acid by utilizing sulfur-containing waste liquid generated during gas wet type oxidation process |
| CN206027407U (en) * | 2016-08-29 | 2017-03-22 | 中冶焦耐(大连)工程技术有限公司 | Sulphuric acid tail gas processing device |
| CN106925096A (en) * | 2017-03-28 | 2017-07-07 | 中国华电科工集团有限公司 | A kind of coal steam-electric plant smoke sulfur dioxide, dust and waste water coprocessing system |
| CN206621985U (en) * | 2017-03-28 | 2017-11-10 | 中国华电科工集团有限公司 | A kind of coal steam-electric plant smoke sulfur dioxide and waste water coprocessing system |
| CN107934920A (en) * | 2017-11-29 | 2018-04-20 | 中石化南京工程有限公司 | A kind of device of Waste Sulfuric Acid and hydrogen sulfide waste gas integrated treatment |
Non-Patent Citations (2)
| Title |
|---|
| 刘少武等: "《硫酸生产技术》", 30 June 1993, 东南大学出版社 * |
| 张近: "《化工基础》", 30 June 2002, 高等教育出版社 * |
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Application publication date: 20181211 |