CN204522684U - The absorption plant of flue gas is produced after a kind of hydrazine hydrate reduction - Google Patents
The absorption plant of flue gas is produced after a kind of hydrazine hydrate reduction Download PDFInfo
- Publication number
- CN204522684U CN204522684U CN201420757403.6U CN201420757403U CN204522684U CN 204522684 U CN204522684 U CN 204522684U CN 201420757403 U CN201420757403 U CN 201420757403U CN 204522684 U CN204522684 U CN 204522684U
- Authority
- CN
- China
- Prior art keywords
- tank body
- flue gas
- hydrazine hydrate
- tube
- absorption 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
- 238000010521 absorption reaction Methods 0.000 title claims abstract description 26
- NWZSZGALRFJKBT-KNIFDHDWSA-N (2s)-2,6-diaminohexanoic acid;(2s)-2-hydroxybutanedioic acid Chemical compound OC(=O)[C@@H](O)CC(O)=O.NCCCC[C@H](N)C(O)=O NWZSZGALRFJKBT-KNIFDHDWSA-N 0.000 title claims abstract description 16
- IKDUDTNKRLTJSI-UHFFFAOYSA-N hydrazine monohydrate Substances O.NN IKDUDTNKRLTJSI-UHFFFAOYSA-N 0.000 title claims abstract description 16
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 14
- 239000003546 flue gas Substances 0.000 title claims abstract description 14
- 239000007789 gas Substances 0.000 claims abstract description 7
- 239000007788 liquid Substances 0.000 claims abstract description 7
- 230000000740 bleeding effect Effects 0.000 claims abstract description 5
- 238000007599 discharging Methods 0.000 claims abstract description 4
- MWUXSHHQAYIFBG-UHFFFAOYSA-N Nitric oxide Chemical compound O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 abstract description 13
- 238000000034 method Methods 0.000 abstract description 5
- 229910052751 metal Inorganic materials 0.000 abstract description 4
- 239000002184 metal Substances 0.000 abstract description 4
- 238000006243 chemical reaction Methods 0.000 abstract description 3
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000001311 chemical methods and process Methods 0.000 abstract description 2
- 238000012423 maintenance Methods 0.000 abstract description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical group [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 abstract description 2
- 238000011084 recovery Methods 0.000 abstract description 2
- HEMHJVSKTPXQMS-UHFFFAOYSA-M sodium hydroxide Inorganic materials [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 4
- 239000002912 waste gas Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 2
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 2
- 239000003517 fume Substances 0.000 description 2
- 229910052757 nitrogen Inorganic materials 0.000 description 2
- 238000011946 reduction process Methods 0.000 description 2
- 235000011121 sodium hydroxide Nutrition 0.000 description 2
- 239000002250 absorbent Substances 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 238000003915 air pollution Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004630 mental health Effects 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 239000005436 troposphere Substances 0.000 description 1
Landscapes
- Treating Waste Gases (AREA)
- Gas Separation By Absorption (AREA)
Abstract
The utility model relates to the absorption techniques of flue gas, belongs to metallurgical, chemical process technology type, produces the absorption plant of flue gas after being specifically related to a kind of hydrazine hydrate reduction.Described apparatus structure comprises: absorb tank body, be positioned at the blast pipe with gas exhaust inspecting valve of described absorption tank body upper end, air inlet pipe and the exhaust tube with by-pass valve control of bleeding, be positioned at the liquid level tube of the upper portion side wall of described absorption tank body, be positioned at the discharging tube of the lower sides of described absorption tank body.The utility model meets the air draft requirement during reduction of platinum group metal, improves the rate of recovery of metal; Inhibit the extent of reaction of N2H4 and nitrogen oxide, improve site work environment; Strengthen equipment maintenance, improve service life of fan.
Description
Technical field
The utility model relates to the absorption techniques of flue gas, belongs to metallurgical, chemical process technology type, produces the absorption plant of flue gas after being specifically related to a kind of hydrazine hydrate reduction.
Background technology
The gas that current application hydrazine hydrate reduction produces mainly nitrogen N 2.Hydrazine hydrate N in addition
2h
4h
2nH in O and product
3h
2o due to its volatility and nitrogen generation and by a small amount of N
2h
4, NH
3be brought in air and together enter Fan pipeline.Therefore the gaseous matter entering waste gas treatment equipment in hydrazine hydrate reduction process is exactly mainly N
2, N
2h
4, NH
3.The simultaneously N that volatilizes of hydrazine hydrate
2h
4the nitrogen oxide produced with other posies in Fan pipeline---mainly NO
2react, having enough N
2h
4time, NO
2to be consumed and after producing a large amount of NO, alkali lye will decline by straight line to the absorption efficiency of this waste gas, a large amount of NO is discharged in air and produces blue ozone, and blue ozone is a kind of pollutant harmful to biology in troposphere, and nitrogen oxide forms the biological fearful assailant of air pollution harm especially.
Find in the application process of hydrazine hydrate: the time this blue smog (O that generates carrying out reducing
3) phenomenon, not only cause Heavy environmental pollution, inconvenience brought to activity in production simultaneously.And if by flue gas directly outer row, certain noble metal can be caused to run off, cause environment and pollute significantly, affect the physical and mental health of worker.But at present under high negative pressure condition, common blower fan still cannot be complete by this smoke absorption, and general blower fan is difficult to realize high negative pressure low discharge performance, and will have strong corrosion resistant, guarantee equipment is not corroded, even running simultaneously.
Summary of the invention
Not enough for above-mentioned prior art, the utility model produces the absorption plant of flue gas after providing a kind of hydrazine hydrate reduction, this absorption plant can suppress the N produced in reduction process
2h
4with the reaction of nitrogen oxide, fundamentally solve the problem of common liquid caustic soda to produced blue fume absorbent weak effect.
The utility model is achieved through the following technical solutions:
The absorption plant of flue gas is produced after a kind of hydrazine hydrate reduction, it is characterized in that described apparatus structure comprises: absorb tank body, be positioned at the blast pipe with gas exhaust inspecting valve of described absorption tank body upper end, air inlet pipe and the exhaust tube with by-pass valve control of bleeding, be positioned at the liquid level tube of the upper portion side wall of described absorption tank body, be positioned at the discharging tube of the lower sides of described absorption tank body.
Advantageous Effects of the present utility model: the utility model produces the absorption plant of flue gas after providing a kind of hydrazine hydrate reduction, this device meets the air draft requirement during reduction of platinum group metal, improves the rate of recovery of metal; Inhibit the extent of reaction of N2H4 and nitrogen oxide, improve site work environment; Strengthen equipment maintenance, improve service life of fan.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
As shown in Figure 1, the absorption plant of flue gas is produced after a kind of hydrazine hydrate reduction, structure comprises: absorb tank body 1, this absorption tank body is built with solution 2, solution is water, be positioned at the blast pipe 4 with gas exhaust inspecting valve 3, air inlet pipe 5 and the exhaust tube 6 with by-pass valve control of bleeding that absorb tank body upper end, this air inlet pipe is used for flue gas to arrange in absorption tank body, be positioned at the liquid level tube 7 of the upper portion side wall absorbing tank body, liquid level tube, for controlling the liquid level of the solution absorbed in tank body, is positioned at the discharging tube 9 with discharge opeing by-pass valve control 8 of the lower sides absorbing tank body.
During work, palladium strip liquor 200L is added in reduction kettle, then adding concentration is 80% hydrazine hydrate solution, when temperature is increased to 80 DEG C, extract system is opened, hydrazine hydrate reduction waste gas is changed and walks pump-line, and entered in absorption tank body 1 by air inlet pipe 5, open the by-pass valve control of bleeding of exhaust tube, bleed to the flue gas absorbed through water, this device utilizes NH
3solubility 1:700, N in water
2h
4the character miscible with water energy arbitrary proportion, adopts these two kinds of waste gas of method process that water absorbs, preventing pollution.Simultaneously open gas exhaust inspecting valve 3 a little, regulate mutually, discharged gas fume is controlled to have no irritating odor and the effusion of yellow green smog is standard.
Claims (1)
1. after a hydrazine hydrate reduction, produce the absorption plant of flue gas, it is characterized in that described apparatus structure comprises: absorb tank body, be positioned at the blast pipe with gas exhaust inspecting valve of described absorption tank body upper end, air inlet pipe and the exhaust tube with by-pass valve control of bleeding, be positioned at the liquid level tube of the upper portion side wall of described absorption tank body, be positioned at the discharging tube of the lower sides of described absorption tank body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420757403.6U CN204522684U (en) | 2014-12-07 | 2014-12-07 | The absorption plant of flue gas is produced after a kind of hydrazine hydrate reduction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420757403.6U CN204522684U (en) | 2014-12-07 | 2014-12-07 | The absorption plant of flue gas is produced after a kind of hydrazine hydrate reduction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204522684U true CN204522684U (en) | 2015-08-05 |
Family
ID=53736739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420757403.6U Expired - Fee Related CN204522684U (en) | 2014-12-07 | 2014-12-07 | The absorption plant of flue gas is produced after a kind of hydrazine hydrate reduction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204522684U (en) |
-
2014
- 2014-12-07 CN CN201420757403.6U patent/CN204522684U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150805 |