CN202700350U - Device for desulfurizing flue gas by using sodium-calcium dual alkali method - Google Patents
Device for desulfurizing flue gas by using sodium-calcium dual alkali method Download PDFInfo
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- CN202700350U CN202700350U CN 201220353183 CN201220353183U CN202700350U CN 202700350 U CN202700350 U CN 202700350U CN 201220353183 CN201220353183 CN 201220353183 CN 201220353183 U CN201220353183 U CN 201220353183U CN 202700350 U CN202700350 U CN 202700350U
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Abstract
The utility model discloses a flue gas desulfurization device, in particular to a device for desulfurizing flue gas by using a sodium-calcium dual alkali method. The utility model provides a device for desulfurizing flue gas by using a sodium-calcium dual alkali method, which can be used for oxidizing sulfite more completely to obtain high-quality gypsum. The device comprises a desulfurizing and absorbing tower, a replacing reactor and an oxidizing tank, wherein the desulfurizing and absorbing tower is provided with a sulfur-containing flue gas inlet, a purified flue gas exhaust hole, a desulfurizing pregnant solution outlet and a desulfurizing liquid inlet; the replacing reactor is provided with a liquid inlet, a reactant outlet and a slime inlet; the oxidizing tank is provided with a pre-oxidization desulfurizing pregnant solution inlet, an after-oxidation desulfurizing solution outlet, an air inlet and an air outlet; the desulfurizing pregnant solution outlet of the desulfurizing and absorbing tower is connected with the pre-oxidization desulfurizing pregnant solution inlet of the oxidizing tank through a pipeline; and the after-oxidation desulfurizing solution outlet of the oxidizing tank is connected with the liquid inlet of the replacing reactor through a pipeline.
Description
Technical field
The utility model relates to a kind of flue gas desulfur device, especially a kind of type sodium-calcium double alkali method smoke gas desulfurizing device.
Background technology
The basic process of existing soda dual alkali scrubbing FGD process is that sulfur-containing smoke gas is made desulfurization absorbent solution with NaOH or sodium carbonate, at first carry out desulfurization in desulfuration absorbing tower inside with reverse contact of flue gas, liquid in desulfuration absorbing tower behind the absorption sulphur is called sulfur removing pregnant solution, sulfur removing pregnant solution mainly contains sodium sulfite, then all sulfur removing pregnant solutions are reacted with limewash in metathesis reactor, generation calcium sulfite precipitation, displace simultaneously NaOH, pass into again air calcium sulfite oxidation is become calcium sulfate, through after the Separation of Solid and Liquid, sodium hydroxide solution returns desulfuration absorbing tower and recycles.
The main deficiency that above-mentioned flue gas desulfurization by sodium-calcium dual-alkali scrubbing method process unit exists technically:
The one, flue gas directly directly cools off with doctor solution in desulfuration absorbing tower, and the waste heat in the flue gas can not get recycling, and causes energy waste, and desulfurizing tower smoke-purifying band of gas water is many in addition;
The 2nd, the institute of desulfuration absorbing tower is to have sulfur removing pregnant solution all can enter into metathesis reactor to react, and the amount of sulfur removing pregnant solution is just larger like this, and therefore corresponding Regeneration system equipment specification is just larger, causes construction investment huge, and desulphurization cost is too high;
The 3rd, it is high to enter in the desulfuration absorbing tower in the recycle hydrogen sodium hydroxide solution calcium ions, generates calcium sulfite with the sulfur dioxide reaction in desulfuration absorbing tower, causes relevant device and pipeline seriously to stop up, and often shut-down (breakdown) mainteance affects the main device production in upstream;
The 4th, absorb the rear calcium sulfite solid sediment that generates of rich solution and limewash reaction, gas-liquid is difficult to complete complete contact when passing into air oxidation, and oxidation is not thorough, and the gypsum of generation is unstable, does not have value.
The utility model content
It is more thorough that technical problem to be solved in the utility model provides a kind of sulfite oxidation that makes, and obtains the type sodium-calcium double alkali method smoke gas desulfurizing device of the higher gypsum of quality.
The utility model solves the type sodium-calcium double alkali method smoke gas desulfurizing device that its technical problem adopts, comprise desulfuration absorbing tower, metathesis reactor and oxidation tank, be provided with the sulfur-containing smoke gas import on the described desulfuration absorbing tower, the purifying smoke outlet, sulfur removing pregnant solution outlet and doctor solution import, be provided with liquid-inlet on the described metathesis reactor, reactant outlet and limewash import, be provided with the front sulfur removing pregnant solution import of oxidation on the described oxidation tank, desulfuration solution outlet after the oxidation, air intlet and air outlet slit, the sulfur removing pregnant solution import links to each other by pipeline before the oxidation of the outlet of the sulfur removing pregnant solution of described desulfuration absorbing tower and described oxidation tank, and desulfuration solution exports and links to each other by pipeline with the liquid-inlet of described metathesis reactor after the oxidation of described oxidation tank.
Further be, also comprise the heat recovery cooler, described heat recovery cooler is provided with gas approach and exhanst gas outlet, described gas approach links to each other with the sulfur-containing smoke gas pipeline, described exhanst gas outlet links to each other by pipeline with the sulfur-containing smoke gas import of described desulfuration absorbing tower, take the flow direction of sulfur-containing smoke gas as reference, the heat recovery cooler by high temperature section the preceding is set and be arranged on after low-temperature zone form.
Further be to be provided with the emergent program control butterfly valve of contact on the described sulfur-containing smoke gas pipeline and to cut off flashboard.
Further be that the sulfur removing pregnant solution outlet of described desulfuration absorbing tower also links to each other with described doctor solution import by pipeline.
Further be, also comprise the circulation solution filter press, on the flow direction of sulfur removing pregnant solution, the outlet of the sulfur removing pregnant solution of described desulfuration absorbing tower at first with described circulation solution filter press, and then link to each other respectively by sulfur removing pregnant solution import before the oxidation of described circulation solution filter press and described doctor solution import, described oxidation tank.
Further be that described circulation solution filter press leads to and is connected with sodium carbonate liquor on the pipeline of described oxidation tank and adds pipeline.
Further be, also comprise decalcification reactor and regenerating alkali liquid storage tank, described decalcification reactor links to each other with the outlet of described metathesis reactor, the alkali lye outlet of described decalcification reactor links to each other with the regeneration alkali lye import of described regenerating alkali liquid storage tank, and the regeneration alkali lye outlet of described regenerating alkali liquid storage tank links to each other with the doctor solution import of described desulfuration absorbing tower.
Further be, also comprise regenerating alkali hydraulic pressure filter, on the flow direction of regeneration alkali lye, the outlet of the alkali lye of described decalcification reactor at first links to each other with described regenerating alkali hydraulic pressure filter, links to each other with the regeneration alkali lye import of described regenerating alkali liquid storage tank by regenerating alkali hydraulic pressure filter again.
Further be, also comprise the gypsum filter press, the outlet of described metathesis reactor at first links to each other with described gypsum filter press, and then links to each other with described decalcification reactor by the gypsum filter press.
Further be, also comprise chimney, described chimney links to each other with the purifying smoke outlet of described desulfuration absorbing tower.
The beneficial effects of the utility model are: flowing on the direction, oxidation tank is arranged on before the metathesis reactor, namely at first sodium sulfite is oxidized to sodium sulphate, to generate NaOH and calcium sulfate with the sodium sulphate reaction by limewash again, because sodium sulfite is water-soluble, therefore just easier and contact with air reaction when oxidation, so not only improved efficient, and be the more thorough of sulfite oxidation, the calcium sulfate purity that generates at last also is greatly improved, and such gypsum has also obtained the value on the industry.Before desulfuration absorbing tower, the heat recovery cooler can also be set, the heat recovery cooler can be divided into low-temperature zone and high temperature section, the water of high temperature section heat absorption can be used for boiler to hot water, low-temperature zone is inhaled thermogenetic hot water can be used for circulating hot water usefulness, so just so that waste heat obtains utilizing, reduce carbon emission, reduced simultaneously the temperature of sulfur-containing smoke gas, heating efficiency in desulfuration absorbing tower just reduces greatly, and the water amount in the flue gas after purifying just reduces greatly like this.The outlet of the sulfur removing pregnant solution of desulfuration absorbing tower also links to each other with described doctor solution import by pipeline, and the carrying out that the desulfurization absorption liquid can be repeatedly when the absorption sulfur-containing smoke gas improved the absorption efficiency of desulfurization absorption liquid.Decalcification reactor and regenerating alkali liquid storage tank can also be set, alkali lye through cementing out is at first through the decalcification reaction like this, store again, be used at last desulfuration absorbing tower, because the calcium ion in the alkali lye has obtained processing, in absorption process, just avoid like this generation of calcium sulfite, prevented the obstruction of equipment.
Description of drawings
Fig. 1 is schematic diagram of the present utility model;
Parts, position and numbering among the figure: desulfuration absorbing tower 1, metathesis reactor 2, oxidation tank 3, heat recovery cooler 4, circulation solution filter press 5, decalcification reactor 6, regenerating alkali liquid storage tank 7, gypsum filter press 8, limewash import 9, chimney 10, purifying smoke outlet 11, sulfur-containing smoke gas import 12, sulfur removing pregnant solution outlet 13, doctor solution import 14, regenerating alkali hydraulic pressure filter 20, liquid-inlet 21, reactant outlet 22, sodium carbonate liquor add pipeline 30.
The specific embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
As shown in Figure 1, the utility model comprises desulfuration absorbing tower 1, metathesis reactor 2 and oxidation tank 3, be provided with sulfur-containing smoke gas import 12 on the described desulfuration absorbing tower 1, purifying smoke outlet 11, sulfur removing pregnant solution outlet 13 and doctor solution import 14, be provided with liquid-inlet 21 on the described metathesis reactor 2, reactant outlet 22 and limewash import 9, be provided with the front sulfur removing pregnant solution import of oxidation on the described oxidation tank 3, desulfuration solution outlet after the oxidation, air intlet and air outlet slit, the sulfur removing pregnant solution import links to each other by pipeline before the oxidation of the outlet 13 of the sulfur removing pregnant solution of described desulfuration absorbing tower 1 and described oxidation tank 3, and desulfuration solution exports with the liquid-inlet 21 of described metathesis reactor 2 and links to each other by pipeline after the oxidation of described oxidation tank 3.In the desulfuration absorbing tower 1 main use sodium hydroxide solution and or sodium carbonate liquor carry out desulfurization, mainly contain sulfur dioxide in the sulfur-containing smoke gas, sulfur-containing smoke gas enters from the bottom of desulfuration absorbing tower 1, contact with the doctor solution that enters from top, reaction generates water-soluble sodium sulfite solution, and the flue gas after the desulfurization is discharged from the top of desulfuration absorbing tower 1, reacted solution is then discharged from the bottom of desulfuration absorbing tower 1, reacted solution enters into oxidation tank 3 through piping, oxidation tank 3 can connect arrange a plurality of, two among Fig. 1 for example, continue in the oxidation tank 3 to inject air by air compressor, sodium sulfite in the solution will be oxidized to sodium sulphate, the solution of contains sodium sulfate again by Flows to metathesis reactor 2, in contains sodium sulfate solution, add limewash by limewash import 9, reaction generates calcium sulfate and NaOH, because calcium sulfate is to be slightly soluble in water, therefore namely can be made into after precipitation the product gypsum, remaining sodium hydroxide solution can again enter into doctor solution import 14 and use as doctor solution.By comparing as can be known with existing method, traditional structure at first is to carry out displacement reaction, be that solution after the desulfurization at first enters in the displacement reaction device, generation is slightly soluble in calcium sulfite and the NaOH of water, and then oxidation generates calcium sulfate in the displacement reaction device, exist because calcium sulfite substantially all is the form of solid, air is difficult to fully contact with calcium sulfite, so just causes the last calcium sulfate purity that generates lower.And the utility model utilizes oxidation tank 3 and metathesis reactor 2 to carry out respectively oxidation reaction and displacement reaction, sodium sulfite is oxidation generation sodium sulphate in oxidation tank 3 at first, this moment, sulphite was to be in dissolved state, high with the contact rate of air, efficiency is high, and is more thorough, the final sodium sulphate that generates, sodium sulphate enters into metathesis reactor 2 reactions again and generates calcium sulfate, and the gypsum purity that generates like this is higher, satisfies the requirement of commercialization fully.
In order to recycle the heat in the sulfur-containing smoke gas, reduce the water amount of flue gas, the utility model also comprises heat recovery cooler 4, described heat recovery cooler 4 is provided with gas approach and exhanst gas outlet, described gas approach links to each other with the sulfur-containing smoke gas pipeline, the sulfur-containing smoke gas import 12 of described exhanst gas outlet and described desulfuration absorbing tower 1 links to each other by pipeline, take the flow direction of sulfur-containing smoke gas as reference, heat recovery cooler 4 by high temperature section the preceding is set and be arranged on after low-temperature zone form.Heat recovery cooler 4 contains two sections endotherm sections, high temperature section is arranged on the gas approach near heat recovery cooler 4, low-temperature zone is arranged on the exhanst gas outlet near heat recovery cooler 4, the flue-gas temperature of high temperature section contact is higher, its hot water that reclaims heat generation can be used for boiler feedwater hot water, thereby reduce the fuel consumption of boiler, reduce carbon emission.Be reduced through the flue-gas temperature after the high temperature section absorption, recycle low-temperature zone at this moment and continue recovery waste heat, the hot water of generation can be used for circulating hot water usefulness after low-temperature zone absorbed.Flue-gas temperature through heat recovery cooler 4 has obtained great reduction, the rear heating benefit to desulfuration solution of reaction reduces greatly in desulfuration absorbing tower 1 like this, when getting rid of flue gas, the water content in the flue gas reduces greatly, has so just reduced the desulfuration solution concentration as influencing factor at last.
In order to prevent that the utility model from impacting upstream equipment, as shown in Figure 1, be provided with the emergent program control butterfly valve of contact on the described sulfur-containing smoke gas pipeline and cut off flashboard.When this device something unexpected happened, can close rapidly the emergent program control butterfly valve of contact and cut off flashboard, thereby prevent that liquids and gases from impacting upstream equipment.
In the production of reality, doctor solution once absorbs can't full consumption complete at desulfuration absorbing tower 1, be that NaOH in the doctor solution or sodium carbonate can once not circulate and just runs out of with the sulfur dioxide reaction, the doctor solution that conventional method will only once circulate after just will absorbing enters into next equipment, the amount of liquid of processing like this is inevitable very large, cause equipment huge, increased production cost.In order to form the continuous several times circulation, the sulfur removing pregnant solution outlet 13 of desulfuration absorbing tower 1 described in the utility model also links to each other with described doctor solution import 14 by pipeline.In the production of reality, can control by valve the switching of each pipeline, doctor solution is after absorption, form sulfur removing pregnant solution, part sulfur removing pregnant solution enters into oxidation tank 3 follow-up equipments such as grade and carries out subsequent reactions, part sulfur removing pregnant solution reenters in the desulfuration absorbing tower 1 to mix again with the NaOH of new adding or sodium carbonate and absorbs, reality has formed continuous a plurality of circulation like this, be repeatedly absorption cycle and desulfurization regeneration cycle for the treatment of of doctor solution, so both reduced in a large number the treating capacity of subsequent regeneration equipment, it is less that the follow-up equipments such as metathesis reactor 2 and oxidation tank 3 just can arrange, saved thus fund cost, circulation absorbs the utilization rate that can also improve doctor solution.
For impurity screening, as shown in Figure 1, also comprise circulation solution filter press 5, on the flow direction of sulfur removing pregnant solution, the sulfur removing pregnant solution of described desulfuration absorbing tower 1 outlet 13 at first with described circulation solution filter press 5, and then link to each other respectively by sulfur removing pregnant solution import before the oxidation of described circulation solution filter press 5 and described doctor solution import 14, described oxidation tank 3.Sulfur removing pregnant solution at first passes through the filtration of circulation solution filter press 5, thereby reduces the impurity that it carries, and is conducive to the work of follow-up equipment.
Described circulation solution filter press 5 leads to and is connected with sodium carbonate liquor on the pipeline of described oxidation tank 3 and adds pipeline 30.Additional sodium carbonate has two effects, one be can sodium carbonate and solution in calcium ion can react, generate the very little calcium carbonate of solubility, can remove during filtration, avoid entering and bring calcium ion in the desulfuration absorbing tower in the circulation solution into.If enter circulating absorption solution calcium ions in the absorption tower, will react with sulfur dioxide, generate calcium sulfate precipitation, occluding device and pipeline.Second effect is the alkali lye that replenishment cycles desulphurization system solid is taken away, sodium carbonate can absorb the sulfur dioxide that is dissolved in the rich solution, thereby so that absorb more thoroughly, the corrosion that the sulfur dioxide of avoiding dissolving causes e-quipment and pipe is with balanced recycle liquid caustic soda degree.
Doctor solution after regeneration forms obstruction in desulfuration absorbing tower 1, as shown in Figure 1, also comprise decalcification reactor 6 and regenerating alkali liquid storage tank 7, described decalcification reactor 6 links to each other with the outlet of described metathesis reactor 2, the alkali lye outlet of described decalcification reactor 6 links to each other with the regeneration alkali lye import of described regenerating alkali liquid storage tank 7, and the regeneration alkali lye outlet of described regenerating alkali liquid storage tank 7 links to each other with the doctor solution import 14 of described desulfuration absorbing tower 1.Still contain more calcium ion in the regenerative sulfur binding liquid after processing through metathesis reactor 2, if do not process, then its reenter behind the desulfuration absorbing tower 1 can with flue gas in sulphur dioxide production be slightly soluble in the calcium sulfite of water, cause the obstruction of pipeline.After regeneration is complete, with gyp mud pump extraction slurries, filter with plate and frame filter press, filtrate is sent into decalcification reactor 6, washes solid, washs the NaOH that attaches, washings deallocation limewash processed with clear water, solid is gypsum, does merchandise sales after outward transport or further the processing.The utility model utilizes decalcification reactor 6 to remove most calcium ion, and deliming can adopt carbonate solution to process, and the doctor solution of avoiding regenerating is in use produced calcium sulfite and resulted in blockage.Regenerating alkali liquid storage tank 7 can store unnecessary doctor solution, uses in needs, and each pipeline opens and closes and adopts valve control, and the mobile employing pump of liquid drives.In decalcification reactor 6, the solubility with temperature of calcium sulfate raises and reduces, and when solution temperature reached about 80-90 ℃, the solubility of calcium sulfate (gypsum) was very low, the calcium sulfate that dissolves in the solution this moment all becomes solids of sedimentation and gets off, thereby has removed the calcium sulfate that is dissolved in the solution.
For the filter regeneration doctor solution, as shown in Figure 1, also comprise regenerating alkali hydraulic pressure filter 20, on the flow direction of regeneration alkali lye, the alkali lye outlet of described decalcification reactor 6 at first links to each other with described regenerating alkali hydraulic pressure filter 20, links to each other with the regeneration alkali lye import of described regenerating alkali liquid storage tank 7 by regenerating alkali hydraulic pressure filter 20 again.Utilize regenerating alkali hydraulic pressure filter 20 can filter out impurity in the regenerative sulfur binding liquid after decalcification reactor 6 is processed.
In order to filter the regenerative sulfur binding liquid after metathesis reactor 2 is processed, as shown in Figure 1, also comprise gypsum filter press 8, the outlet of described metathesis reactor 2 at first links to each other with described gypsum filter press 8, and then links to each other with described decalcification reactor 6 by gypsum filter press 8.Utilize gypsum filter press 8 can isolate gypsum, thereby guarantee that the impurity content in the regenerative sulfur binding liquid is less.
For the unified flue gas of discharging, as shown in Figure 1, also comprise chimney 10, described chimney 10 links to each other with the purifying smoke outlet 11 of described desulfuration absorbing tower 1.Flue gas after desulfurization can be discharged by chimney 10, simultaneously, when device of the present utility model is stopped using, can directly sulfur-containing smoke gas be discharged by chimney 10.
Claims (10)
1. type sodium-calcium double alkali method smoke gas desulfurizing device, comprise desulfuration absorbing tower (1), metathesis reactor (2) and oxidation tank (3), be provided with sulfur-containing smoke gas import (12) on the described desulfuration absorbing tower (1), purifying smoke outlet (11), sulfur removing pregnant solution outlet (13) and doctor solution import (14), be provided with liquid-inlet (21) on the described metathesis reactor (2), reactant outlet (22) and limewash import (9), be provided with the front sulfur removing pregnant solution import of oxidation on the described oxidation tank (3), desulfuration solution outlet after the oxidation, air intlet and air outlet slit, it is characterized in that: the sulfur removing pregnant solution outlet (13) of described desulfuration absorbing tower (1) links to each other by pipeline with the front sulfur removing pregnant solution import of the oxidation of described oxidation tank (3), and the desulfuration solution outlet links to each other by pipeline with the liquid-inlet (21) of described metathesis reactor (2) after the oxidation of described oxidation tank (3).
2. type sodium-calcium double alkali method smoke gas desulfurizing device as claimed in claim 1, it is characterized in that: also comprise heat recovery cooler (4), described heat recovery cooler (4) is provided with gas approach and exhanst gas outlet, described gas approach links to each other with the sulfur-containing smoke gas pipeline, described exhanst gas outlet links to each other by pipeline with the sulfur-containing smoke gas import (12) of described desulfuration absorbing tower (1), take the flow direction of sulfur-containing smoke gas as reference, heat recovery cooler (4) by high temperature section the preceding is set and be arranged on after low-temperature zone form.
3. type sodium-calcium double alkali method smoke gas desulfurizing device as claimed in claim 2 is characterized in that: be provided with the emergent program control butterfly valve of contact on the described sulfur-containing smoke gas pipeline and cut off flashboard.
4. type sodium-calcium double alkali method smoke gas desulfurizing device as claimed in claim 1 is characterized in that: the sulfur removing pregnant solution outlet (13) of described desulfuration absorbing tower (1) also links to each other with described doctor solution import (14) by pipeline.
5. type sodium-calcium double alkali method smoke gas desulfurizing device as claimed in claim 4, it is characterized in that: also comprise circulation solution filter press (5), on the flow direction of sulfur removing pregnant solution, the sulfur removing pregnant solution of described desulfuration absorbing tower (1) outlet (13) at first with described circulation solution filter press (5), and then link to each other respectively with the front sulfur removing pregnant solution import of the oxidation of described doctor solution import (14), described oxidation tank (3) by described circulation solution filter press (5).
6. type sodium-calcium double alkali method smoke gas desulfurizing device as claimed in claim 5 is characterized in that: described circulation solution filter press (5) leads to and is connected with sodium carbonate liquor on the pipeline of described oxidation tank (3) and adds pipeline (30).
7. type sodium-calcium double alkali method smoke gas desulfurizing device as claimed in claim 1, it is characterized in that: also comprise decalcification reactor (6) and regenerating alkali liquid storage tank (7), described decalcification reactor (6) links to each other with the outlet of described metathesis reactor (2), the alkali lye outlet of described decalcification reactor (6) links to each other with the regeneration alkali lye import of described regenerating alkali liquid storage tank (7), and the regeneration alkali lye outlet of described regenerating alkali liquid storage tank (7) links to each other with the doctor solution import (14) of described desulfuration absorbing tower (1).
8. type sodium-calcium double alkali method smoke gas desulfurizing device as claimed in claim 7, it is characterized in that: also comprise regenerating alkali hydraulic pressure filter (20), on the flow direction of regeneration alkali lye, the alkali lye outlet of described decalcification reactor (6) at first links to each other with described regenerating alkali hydraulic pressure filter (20), links to each other with the regeneration alkali lye import of described regenerating alkali liquid storage tank (7) by regenerating alkali hydraulic pressure filter (20) again.
9. type sodium-calcium double alkali method smoke gas desulfurizing device as claimed in claim 7, it is characterized in that: also comprise gypsum filter press (8), the outlet of described metathesis reactor (2) at first links to each other with described gypsum filter press (8), and then links to each other with described decalcification reactor (6) by gypsum filter press (8).
10. such as the described type sodium-calcium double alkali method smoke gas desulfurizing device of the arbitrary claim of claim 1 to 9, it is characterized in that: also comprise chimney (10), described chimney (10) links to each other with the purifying smoke outlet (11) of described desulfuration absorbing tower (1).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220353183 CN202700350U (en) | 2012-07-20 | 2012-07-20 | Device for desulfurizing flue gas by using sodium-calcium dual alkali method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201220353183 CN202700350U (en) | 2012-07-20 | 2012-07-20 | Device for desulfurizing flue gas by using sodium-calcium dual alkali method |
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| CN 201220353183 Expired - Lifetime CN202700350U (en) | 2012-07-20 | 2012-07-20 | Device for desulfurizing flue gas by using sodium-calcium dual alkali method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102728206A (en) * | 2012-07-20 | 2012-10-17 | 成都德美工程技术有限公司 | Device for flue gas desulfurization by sodium-calcium double alkali method |
| CN103239982A (en) * | 2013-05-24 | 2013-08-14 | 上海交通大学 | Method for dedusting and desulfurizing catalytic-cracking oil refining regenerated flue gas |
| CN109821383A (en) * | 2019-02-25 | 2019-05-31 | 李学良 | A kind of intelligence prevention and control of air pollution system and method |
-
2012
- 2012-07-20 CN CN 201220353183 patent/CN202700350U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102728206A (en) * | 2012-07-20 | 2012-10-17 | 成都德美工程技术有限公司 | Device for flue gas desulfurization by sodium-calcium double alkali method |
| CN103239982A (en) * | 2013-05-24 | 2013-08-14 | 上海交通大学 | Method for dedusting and desulfurizing catalytic-cracking oil refining regenerated flue gas |
| CN103239982B (en) * | 2013-05-24 | 2015-05-20 | 上海交通大学 | Method for dedusting and desulfurizing catalytic-cracking oil refining regenerated flue gas |
| CN109821383A (en) * | 2019-02-25 | 2019-05-31 | 李学良 | A kind of intelligence prevention and control of air pollution system and method |
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