CN104383800A - Flue gas desulfurizing device - Google Patents
Flue gas desulfurizing device Download PDFInfo
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- CN104383800A CN104383800A CN201410569694.0A CN201410569694A CN104383800A CN 104383800 A CN104383800 A CN 104383800A CN 201410569694 A CN201410569694 A CN 201410569694A CN 104383800 A CN104383800 A CN 104383800A
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- flue gas
- absorption tower
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- liquid separator
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Abstract
The invention discloses a flue gas desulfurizing device, belongs to the field of non-ferrous metal production, and particularly relates to the field of sulfur-containing waste gas treatment in copper production. Aiming at the problem that the conventional desulfuration method cannot deal with the greater flue gas fluctuation of sulfur-containing flue gas, the invention provides the device which is more suitable for flue gas fluctuation performance and can effectively perform desulfuration. The flue gas desulfurizing device comprises a sulphuric acid tail gas absorption tower, a flue gas absorption tower, a medicine adding part and a separating part, wherein the liquid outlet in the bottom of the sulphuric acid tail gas absorption tower is externally connected with a clean liquid tank; the outlet of the clean liquid tank is communicated with a pipeline reactor; a medicine adding device is arranged at the inlet of the reactor; the outlet of the pipeline reactor is externally connected with a power reactor and a solid-liquid separator which are connected in series; the solid outlet of the solid-liquid separator is externally connected with filter pressing equipment; the liquid outlet of the solid-liquid separator is externally connected with the spray pump inlet of the flue gas absorption tower; the spray pump outlet attached to the flue gas absorption tower is further connected with the spray pump inlet attached to the sulphuric acid tail gas absorption tower; the flue gas absorption tower is communicated with the clean liquid tank. Through the adoption of the device, desulfurized products are easy to treat, and the flue gas desulfurizing device is has a higher property suitable for flue gas fluctuation.
Description
Technical field
The invention belongs to nonferrous production field, particularly relate to sulphur-containing exhaust gas process field in copper production.
Background technology
In the smelting process of copper, smelting system adopts flash smelting, PS bessemerizes, anode furnace refinery practice.SO is overflowed for reducing in smelting process
2flue gas, on the impact of environment, is provided with ugitive gas collection system, higher concentration SO
2flue gas discharges after the desulfurization of dynamic wave desulphurization system, low concentration SO
2flue gas directly enters chimney high altitude discharge, and along with the increasingly stringent of environmental requirement, the flue gas that reason high-altitude chimney directly discharges can not qualified discharge, must carry out desulfurization process.The flue gas produced has following characteristics, and exhaust gas volumn is large, SO
2fluctuation of concentration is comparatively large, a certain amount of smelting smoke dust of oil-containing in flue gas.Conventional sulfur method has activated coke method, ammonia process, new catalytic method, magnesium processes, sodium method etc. at present, the shortcomings such as these methods more or less exist highly energy-consuming, operating cost is high, flue gas condition is high, system cloud gray model resistance large, tail gas requirement is high, byproduct is difficult, well can not process the flue gas of generation.
Summary of the invention
The object of this invention is to provide a kind of stable, desulfurization product easily processes, flue gas fluctuates adaptable flue gas desulfur device.
The present invention is achieved by the following technical programs: a kind of flue gas desulfur device, by sulfuric acid tail gas absorption tower, smoke absorption tower, dosing part, separate section forms, the external clean solution tank of described sulfuric acid tail gas absorption tower bottom liquid outlet, described clean solution tank outlet pipeline reactor, described reactor inlet is provided with chemicals dosing plant, described pipeline reactor exports dynamic response device and the solid-liquid separator of external series connection, the external filtering equipment of described solid-liquid separator solid outlet, the spray pump entrance of the external smoke absorption tower of described solid-liquid separator liquid outlet, described smoke absorption tower attached spray pump outlet also attached with described sulfuric acid tail gas absorption tower spray pump entrance be connected, described smoke absorption tower is communicated with described clean solution tank.
Described smoke absorption tower pumps into described clean solution tank by described regenerative pump.
Described chemicals dosing plant comprises dosing chamber and alkali lye pond, and described dosing chamber raw material is magnesia, and described dosing chamber is in parallel two.
Sulfuric acid tail gas and flue gas pass into described sulfuric acid tail gas absorption tower and described smoke absorption tower by air-introduced machine.
Described dynamic response device and described solid-liquid separator are respectively in parallel two.
Described filtering equipment is filter press, and described solid-liquid separator solid outlet is communicated with described filter press by sludge press filtration pump.
The present invention has following beneficial effect:
Desulfurization product easily processes, and has higher adaptation flue gas fluctuating nature, adopts the circulation of high ph-values clear liquid, avoids line clogging and equipment corrosion, improve equipment reliability of operation.
Accompanying drawing explanation
Below in conjunction with specific embodiment, the present invention will be further described.
Fig. 1 is a kind of flue gas desulfur device schematic diagram provided by the invention.
In figure: 1. air-introduced machine, 2. absorption tower, 3. spray pump, 4. dosing chamber, 5. dosing chamber, 6. alkali lye pond, 7. pipeline reactor, 8. dynamic response device, 9. solid-liquid separator, 10. spray pump, 11. absorption towers, 12. air-introduced machines, 13. spray liquid delivery pumps, 14. sludge press filtration pumps, 15. filter presses.
Detailed description of the invention
Below in conjunction with accompanying drawing, by embodiment, the present invention is described further.
Specific embodiment: as shown be flue gas desulfur device schematic diagram of the present invention, that in figure, air-introduced machine 1 is introduced is high concentration SO
2flue gas, what air-introduced machine 12 was introduced is low concentration SO
2flue gas, all first by respective absorption tower 2 and 11, realize the absorption of sulfur dioxide, absorbing liquid pumps into clean solution tank, in clean solution tank, absorbing liquid enters pipeline reactor 7, simultaneously by dosing chamber 4, 5, the NaOH that magnesia slurry and mass fraction are 30% by alkali lye pond 6 mixes, in pipeline reactor 7, reaction generates the magnesium sulfite of highly dissoluble, enter dynamic response device 8 and strengthen reaction further, simultaneously by the magnesium sulfite crystal of large granular impurity contained in magnesia and generation dynamic response device 7 bottom part from, the tiny mud that dynamic response device 8 cannot be separated then is isolated by solid-liquid separator 9, solid-liquid separator 9 base sludge then enters filter press 15 by sludge press filtration pump 14 and carries out mummification press filtration process.The absorbing liquid obtaining clarifying enters absorption tower 11 by spray pump 10 and absorbs low-concentration flue gas again, and absorbing liquid again enters absorption tower 1 by spray liquid delivery pump 13 and recycles.After acquiring a certain degree, outer row just can qualified discharge by simple process.
Flue gas desulfur device described in the embodiment of the present invention, achieve and carry out desulfurization process to the adaptable flue gas of fluctuation, desulfurization product is easy to process, adopts the circulation of high ph-values clear liquid, avoids line clogging and equipment corrosion, improve equipment reliability of operation.
above content is the further description done the present invention in conjunction with concrete embodiment, can not assert that specific embodiment of the invention is confined to these explanations.For general technical staff of the technical field of the invention, without departing from the inventive concept of the premise, some simple deduction or replace can also be made, all should be considered as belonging to protection scope of the present invention.
Claims (6)
1. a flue gas desulfur device, by sulfuric acid tail gas absorption tower, smoke absorption tower, dosing part, separate section forms, it is characterized in that: the external clean solution tank of described sulfuric acid tail gas absorption tower bottom liquid outlet, described clean solution tank outlet pipeline reactor, described reactor inlet is provided with chemicals dosing plant, described pipeline reactor exports dynamic response device and the solid-liquid separator of external series connection, the external filtering equipment of described solid-liquid separator solid outlet, the spray pump entrance of the external smoke absorption tower of described solid-liquid separator liquid outlet, described smoke absorption tower attached spray pump outlet be also connected with the spray pump entrance attached with described sulfuric acid tail gas absorption tower, described smoke absorption tower is communicated with described clean solution tank.
2. flue gas desulfur device as claimed in claim 1, is characterized in that: described smoke absorption tower pumps into described clean solution tank by described regenerative pump.
3. flue gas desulfur device as claimed in claim 1, it is characterized in that: described chemicals dosing plant comprises dosing chamber and alkali lye pond, described dosing chamber raw material is magnesia, and described dosing chamber is in parallel two.
4. flue gas desulfur device as claimed in claim 1, is characterized in that: sulfuric acid tail gas and flue gas pass into described sulfuric acid tail gas absorption tower and described smoke absorption tower by air-introduced machine.
5. flue gas desulfur device as claimed in claim 1, is characterized in that: described dynamic response device and described solid-liquid separator are respectively in parallel two.
6. the flue gas desulfur device as described in claim 1 or 5, is characterized in that: described filtering equipment is filter press, and described solid-liquid separator solid outlet is communicated with described filter press by sludge press filtration pump.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410569694.0A CN104383800A (en) | 2014-10-23 | 2014-10-23 | Flue gas desulfurizing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410569694.0A CN104383800A (en) | 2014-10-23 | 2014-10-23 | Flue gas desulfurizing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104383800A true CN104383800A (en) | 2015-03-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410569694.0A Pending CN104383800A (en) | 2014-10-23 | 2014-10-23 | Flue gas desulfurizing device |
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| CN (1) | CN104383800A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106039969A (en) * | 2016-07-21 | 2016-10-26 | 黄立维 | Sulfur dioxide absorption method and device |
| CN107261756A (en) * | 2017-04-14 | 2017-10-20 | 浙江润德环境工程有限公司 | Wet process of FGD plural parallel stage absorption tower |
| CN108371879A (en) * | 2018-03-14 | 2018-08-07 | 武汉大学 | It is a kind of to be electrolysed the system and method for handling high chlorine desulfurization wastewater and coupling denitration demercuration |
-
2014
- 2014-10-23 CN CN201410569694.0A patent/CN104383800A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106039969A (en) * | 2016-07-21 | 2016-10-26 | 黄立维 | Sulfur dioxide absorption method and device |
| CN107261756A (en) * | 2017-04-14 | 2017-10-20 | 浙江润德环境工程有限公司 | Wet process of FGD plural parallel stage absorption tower |
| CN108371879A (en) * | 2018-03-14 | 2018-08-07 | 武汉大学 | It is a kind of to be electrolysed the system and method for handling high chlorine desulfurization wastewater and coupling denitration demercuration |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150304 |
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| WD01 | Invention patent application deemed withdrawn after publication |