CN203017976U - Concentrated nitric acid mist recycling device - Google Patents
Concentrated nitric acid mist recycling device Download PDFInfo
- Publication number
- CN203017976U CN203017976U CN 201220689839 CN201220689839U CN203017976U CN 203017976 U CN203017976 U CN 203017976U CN 201220689839 CN201220689839 CN 201220689839 CN 201220689839 U CN201220689839 U CN 201220689839U CN 203017976 U CN203017976 U CN 203017976U
- Authority
- CN
- China
- Prior art keywords
- pipeline
- injector
- nitric acid
- connects
- tank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The utility model discloses a concentrated nitric acid mist recycling device, which belongs to the field of chemical production devices. A 1# separating tank is connected with a 1# injector through a pipeline, the 1# injector is connected with a 1# water seal tank through a pipeline, a liquid phase of the 1# water seal tank is connected with a hydrogen peroxide solution circulating tank, a gas phase of the 1# water seal tank is connected with a 2# separating tank through a pipeline, the 2# separating tank is connected with a 2# injector through a pipeline, the 2# injector is connected with a 2# water seal tank through a pipeline, a liquid phase of the 2# water seal tank is connected with the hydrogen peroxide solution circulating tank, and a gas phase of the 2# water seal tank is emptied through an emptying pipeline. According to the utility model, the recycling of acid mists generated by concentrated nitric acid intermediate tanks, concentrated nitric acid loading, tower-tail water tanks, magnesium-tail water tanks and dilute acid troughs in the process of concentrated nitric acid production is fully implemented, the output of the device is increased, the consumption of raw materials is reduced, and the pollution to the environment caused by a concentrated nitric acid system is effectively reduced, so that tail gas can be discharged after reaching standards.
Description
Technical field
The utility model relates to a kind of reclaimer of red fuming nitric acid (RFNA) acid mist, belongs to the chemical production equipment field.
Background technology
In the red fuming nitric acid (RFNA) production process, emptying after the acid mist that red fuming nitric acid (RFNA) medial launder, red fuming nitric acid (RFNA) entrucking, tower tail water groove produce is absorbed by washing tower (for removing CO2); The acid mist of magnesium tail water groove, dilute acid bath is sprayed by alkali lye and absorbs rear emptying.Lean solution after absorption contains sodium nitrate, natrium nitrosum, effluxes to cause very big pollution to environment.In addition, emptying end gas can not satisfy environmental requirement, does not meet the policy of current energy-saving and emission-reduction, has brought a large amount of environmental pollutions, has wasted simultaneously a large amount of energy, and it is passive to bring to production, has increased the production cost of enterprise.
Summary of the invention
According to the deficiencies in the prior art, the technical problems to be solved in the utility model is: a kind of reclaimer of red fuming nitric acid (RFNA) acid mist is provided, and without the defective of lean solution, emptying end gas contaminated environment, not only environmental protection but also can recycle the red fuming nitric acid (RFNA) acid mist.
the technical scheme that its technical problem that solves the utility model adopts is: the reclaimer that a kind of red fuming nitric acid (RFNA) acid mist is provided, comprise: the 1# injector, the 2# injector, the 1# knockout drum, the 2# knockout drum, the 1# water sealed tank, the 2# water sealed tank, aqueous hydrogen peroxide solution circulating slot and jet pump, the 1# knockout drum connects the 1# injector by pipeline, the 1# injector connects the 1# water sealed tank by pipeline, 1# water sealed tank liquid phase connects the aqueous hydrogen peroxide solution circulating slot, the meteorology of 1# water sealed tank connects the 2# knockout drum by pipeline, the 2# knockout drum connects the 2# injector by pipeline, the 2# injector connects the 2# water sealed tank by pipeline, 2# water sealed tank liquid phase connects the aqueous hydrogen peroxide solution circulating slot, 2# water sealed tank gas phase is emptying by vent line.
Be provided with cooler in described aqueous hydrogen peroxide solution circulating slot.
Described aqueous hydrogen peroxide solution circulating slot connects jet pump by pipeline, and jet pump connects respectively 1# injector and 2# injector by pipeline.
Jet pump connects the nitric acid groove by pipeline.
Wherein be hydrogen peroxide solution in 1# water sealed tank and 2# water sealed tank and carry out water seal.
Principle:
Hydrogen peroxide has strong oxidizing property, adds hydrogen peroxide in circulating absorption solution, as the oxidant of NO, guarantees the gas oxidizability, improves assimilation effect
Reaction equation:
2NO+3H
2O
2=2HNO
3+2H
2O
2NO2+H
2O
2=2HNO
3
Flow process of the present utility model is as follows:
After magnesium tail water groove acid mist, entrucking acid mist enter the separation of 1# knockout drum, NO
XAfter gas enters 1# water sealed tank and hydrogen peroxide reactive absorption by the 1# injector, the sour water overflow is to the aqueous hydrogen peroxide solution circulating slot, after weary gas enters together with rare nitric acid tank acid mist, red fuming nitric acid (RFNA) medial launder acid mist, tower tail water groove acid mist and enters 2# water sealed tank and hydrogen peroxide reactive absorption by the 2# injector after the 2# separator separates, the sour water overflow is to the aqueous hydrogen peroxide solution circulating slot, and weary gas enters blow-down pipe emptying.Hydrogen peroxide in the aqueous hydrogen peroxide solution circulating slot squeezes into respectively the 1# injector by jet pump and the 2# ejector cycle uses.
Nitric acid content reaches 15%-30% in solution in the aqueous hydrogen peroxide solution circulating slot, with jet pump, solution is sent in the nitric acid groove of tower tail, enters dense nitre system recycling.
Aqueous hydrogen peroxide solution circulating slot air chamber carries out the tail gas classification with the dividing plate isolation and absorbs, and liquid phase communicates, and is cooled with circulating water cooling, strengthens assimilation effect.
The utility model has the advantages that: fully realized the recycling of the acid mist that red fuming nitric acid (RFNA) medial launder in the red fuming nitric acid (RFNA) production process, red fuming nitric acid (RFNA) entrucking, tower tail water groove, magnesium tail water groove, dilute acid bath produce, increased the output of device, reduced consumption of raw materials, and effectively reduce the red fuming nitric acid (RFNA) system to the pollution of environment, make the tail gas can qualified discharge.
Description of drawings
Fig. 1 is structural representation of the present utility model;
In figure, 1 is the 1# injector; 2 is the 2# injector; 3 is the 1# knockout drum; 4 is the 2# knockout drum; 5 is the 1# water sealed tank; 6 is the 2# water sealed tank; 7 is the aqueous hydrogen peroxide solution circulating slot; 8 is jet pump; 9 is cooler; 10 is the nitric acid groove.
The specific embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described further:
as shown in Figure 1, the utility model comprises: 1 # injector 1, 2 # injector 2, 1# knockout drum 3, 2# knockout drum 4, 1# water sealed tank 5, 2# water sealed tank 6, aqueous hydrogen peroxide solution circulating slot 7 and jet pump 8, 1# knockout drum 3 connects 1# injector 1 by pipeline, 1# injector 1 connects 1# water sealed tank 5 by pipeline, 1# water sealed tank 5 liquid phases connect aqueous hydrogen peroxide solution circulating slot 7, the meteorology of 1# water sealed tank 5 connects 2# knockout drum 4 by pipeline, 2# knockout drum 4 connects 2# injector 2 by pipeline, 2# injector 2 connects 2# water sealed tank 6 by pipeline, 2# water sealed tank 6 liquid phases connect aqueous hydrogen peroxide solution circulating slot 7, 2# water sealed tank 6 is meteorological emptying by vent line.
Be provided with cooler 9 in aqueous hydrogen peroxide solution circulating slot 7.
Aqueous hydrogen peroxide solution circulating slot 7 connects jet pump 8 by pipeline, and jet pump 8 connects respectively 1 # injector 1 and 2# injector 2 by pipeline.
Claims (4)
1. the reclaimer of a red fuming nitric acid (RFNA) acid mist, it is characterized in that comprising: 1# injector (1), 2# injector (2), 1# knockout drum (3), 2# knockout drum (4), 1# water sealed tank (5), 2# water sealed tank (6), aqueous hydrogen peroxide solution circulating slot (7) and jet pump (8), 1# knockout drum (3) connects 1# injector (1) by pipeline, 1# injector (1) connects 1# water sealed tank (5) by pipeline, 1# water sealed tank (5) liquid phase connects aqueous hydrogen peroxide solution circulating slot (7), the meteorology of 1# water sealed tank (5) connects 2# knockout drum (4) by pipeline, 2# knockout drum (4) connects 2# injector (2) by pipeline, 2# injector (2) connects 2# water sealed tank (6) by pipeline, 2# water sealed tank (6) liquid phase connects aqueous hydrogen peroxide solution circulating slot (7), 2# water sealed tank (6) gas phase is emptying by vent line.
2. the reclaimer of red fuming nitric acid (RFNA) acid mist according to claim 1, is characterized in that being provided with in described aqueous hydrogen peroxide solution circulating slot (7) cooler (9).
3. the reclaimer of red fuming nitric acid (RFNA) acid mist according to claim 1, it is characterized in that described aqueous hydrogen peroxide solution circulating slot (7) connects jet pump (8) by pipeline, jet pump (8) connects respectively 1# injector (1) and 2# injector (2) by pipeline.
4. the reclaimer of red fuming nitric acid (RFNA) acid mist according to claim 1, is characterized in that described jet pump (8) connects nitric acid groove (10) by pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220689839 CN203017976U (en) | 2012-12-13 | 2012-12-13 | Concentrated nitric acid mist recycling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220689839 CN203017976U (en) | 2012-12-13 | 2012-12-13 | Concentrated nitric acid mist recycling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203017976U true CN203017976U (en) | 2013-06-26 |
Family
ID=48641994
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220689839 Expired - Fee Related CN203017976U (en) | 2012-12-13 | 2012-12-13 | Concentrated nitric acid mist recycling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203017976U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109395562A (en) * | 2018-11-18 | 2019-03-01 | 湖南冠颜料有限公司 | Exhaust gas processing device and processing method during a kind of concentrated nitric acid configuration dust technology |
| CN110280108A (en) * | 2019-08-12 | 2019-09-27 | 河南联创化工有限公司 | A kind of synthesis acid mist absorption treating device |
-
2012
- 2012-12-13 CN CN 201220689839 patent/CN203017976U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109395562A (en) * | 2018-11-18 | 2019-03-01 | 湖南冠颜料有限公司 | Exhaust gas processing device and processing method during a kind of concentrated nitric acid configuration dust technology |
| CN110280108A (en) * | 2019-08-12 | 2019-09-27 | 河南联创化工有限公司 | A kind of synthesis acid mist absorption treating device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104028100A (en) | Absorption technology of oxynitride gas at normal pressure and apparatus | |
| CN103011084A (en) | Method for extracting iodine from dehydrate wet method diluted phosphoric acid reaction iodic waste gas | |
| CN104138703B (en) | Between/paraphthaloyl chloride produce in waste gas treatment process and device | |
| CN104028083B (en) | A kind of fluorinated tail gas treating apparatus and method | |
| CN203017976U (en) | Concentrated nitric acid mist recycling device | |
| CN203307250U (en) | Sulfur trioxide sulfonation device | |
| CN205109056U (en) | Sour vapor removal recovery unit of red fuming nitric acid (RFNA) production | |
| CN202070285U (en) | Device for removing sulfur dioxides in sulphuric acid industrial tail gas and recovering sulphuric acid | |
| CN204865499U (en) | Methyl nitrite's waste gas treatment system | |
| CN201990481U (en) | Concentration device for dilute hydrochloric acid | |
| CN206746290U (en) | A kind of processing unit for aluminum trichloride (anhydrous) production tail gas | |
| CN208471559U (en) | Metastannic acid recyclable device in a kind of stripping tin waste liquid | |
| CN203990257U (en) | Between/paraphthaloyl chloride produce in emission-control equipment | |
| CN209740716U (en) | Cooling circulation device for concentrated nitric acid production | |
| CN203513801U (en) | Oxy-hydrogen washer for water electrolysis hydrogen production | |
| CN202683059U (en) | Acid-base waste gas treatment system for field of recycling etching liquid | |
| CN202555174U (en) | Tail gas cyclic utilization device for chlorination reaction of sulfonyl chloride during synthesis of 4-chloro-2-methoxy carbonyl methoxy imino-3-oxobutyric acid (CMOBA) | |
| CN202478634U (en) | Device for processing acid mist | |
| CN203030166U (en) | High-purity hydrochloric acid tail gas recycling device | |
| CN204125192U (en) | The useless time sodium recycle device of acetylene | |
| CN201333372Y (en) | Tail gas recovery device of methanol tower | |
| CN206652378U (en) | The ammoniacal liquor preparation system of desulfurizing tower tail gas clean-up absorption | |
| CN103011085A (en) | Method for extracting iodine from semi-wet method diluted phosphoric acid reaction iodic waste gas | |
| CN204619685U (en) | A kind of injecting type membrane filtration fine de-sulfur equipment being applicable to refinery | |
| CN204522721U (en) | Hydrogen fluoride slag charge waste gas recovering device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: HELI TECHNOLOGY CO., LTD. Free format text: FORMER NAME: SHANDONG UNITED CHEMICAL INDUSTRY CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 256100 No. 36 Dongfeng Road, Yiyuan County, Shandong, Zibo Patentee after: SHANDONG LIAHERD CHEMICAL INDUSTRY CO., LTD. Address before: 256100 No. 36 Dongfeng Road, Yiyuan County, Shandong, Zibo Patentee before: Shandong United Chemical Industry Co., Ltd. |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20171012 Address after: Yiyuan County Economic Development Zone 256100 Shandong city of Zibo province (county Yihe Road No. 1329) Patentee after: Shandong Heli Chemical Co., Ltd. Address before: 256100 No. 36 Dongfeng Road, Yiyuan County, Shandong, Zibo Patentee before: SHANDONG LIAHERD CHEMICAL INDUSTRY CO., LTD. |
|
| TR01 | Transfer of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130626 Termination date: 20191213 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |