CN204543973U - A kind of wet magnesium oxide desulphurization system - Google Patents
A kind of wet magnesium oxide desulphurization system Download PDFInfo
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- CN204543973U CN204543973U CN201520050537.9U CN201520050537U CN204543973U CN 204543973 U CN204543973 U CN 204543973U CN 201520050537 U CN201520050537 U CN 201520050537U CN 204543973 U CN204543973 U CN 204543973U
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- magnesia
- absorption tower
- magnesium oxide
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Abstract
The utility model is a kind of denitrating system, particularly a kind of wet magnesium oxide desulphurization system.Comprise into cigarette assembly, absorption tower desulfurization module and magnesia conveying assembly, the described cigarette assembly that enters is connected with absorption tower desulfurization module respectively with magnesia conveying assembly.A kind of wet magnesium oxide desulphurization system architecture is compact, and device layout is reasonable, and operating efficiency is high, strong adaptability.
Description
Technical field
The utility model is a kind of denitrating system, particularly a kind of wet magnesium oxide desulphurization system.
Background technology
The burning of boiler traditional at present mainly uses coal, and wherein coal-fired power plant is the discharge rich and influential family of China's consumption coal and sulfur dioxide and nitrogen oxide, causes the pollution of environment, and production cost is high simultaneously.
Chinese patent CN201020653537.5, a kind of chain type boiler Special square desulfurizing dust-collector is disclosed, the second impacting desulfurization dirt pocket is set up in parallel at the sidepiece of the first impacting desulfurization dirt pocket with gas approach, and the steam-water separation chamber arranged side by side with described second impacting desulfurization dirt pocket is set, the top seal two bottom sides of described second impacting desulfurization dirt pocket communicates with the first desulfurization dust chamber and steam-water separation chamber respectively, the top of described steam-water separation chamber is interval with the liquid barrier of three layers from bottom to top, and the topmost of steam-water separation chamber is exhanst gas outlet; The atomizer sprayed down is located at the top of described first impacting desulfurization dirt pocket.This structure desulfurized effect is poor.
Summary of the invention
The utility model mainly solves the deficiencies in the prior art, compact conformation, and runnability is outstanding, a kind of wet magnesium oxide desulphurization system that usage safety performance is high simultaneously.
Above-mentioned technical problem of the present utility model is mainly solved by following technical proposals:
A kind of wet magnesium oxide desulphurization system, comprise into cigarette assembly, absorption tower desulfurization module and magnesia conveying assembly, the described cigarette assembly that enters is connected with absorption tower desulfurization module respectively with magnesia conveying assembly;
The described cigarette assembly that enters comprises smoke-intake pipe road, is provided with inlet baffle door in described smoke-intake pipe road;
Described absorption tower desulfurization module comprises absorption tower, air communication pipe and fresh water (FW) pipeline, upper end in described absorption tower is provided with fresh water (FW) spray piping, the below of described fresh water (FW) spray piping is provided with magnesia spray piping, lower end in described absorption tower is provided with magnesium oxide solution, described air communication pipe stretches in magnesium oxide solution, described magnesium oxide solution is connected by circulating pump with magnesia spray piping, described fresh water (FW) spray piping is connected with fresh water (FW) pipeline, described upper end, absorption tower is connected with chimney by connecting pipe, described absorption tower is connected with smoke-intake pipe road,
Described magnesia conveying assembly comprises magnesia powder storehouse and magnesia slurry tank, the bottom in described magnesia powder storehouse is connected with screw(-type) feeder of weighing, described screw(-type) feeder of weighing is connected with magnesia slurry tank, and described magnesia slurry tank is connected with absorption tower by magnesia slurry pump.
As preferably, described magnesia powder storehouse, fresh water (FW) spray piping, magnesia spray piping are connected with compressed air piping respectively.
As preferably, the bottom on described absorption tower is provided with the discharge pipe be connected with magnesium oxide solution, and described discharge pipe imports in sedimentation basin.
Magnesia powder is put in preparation tank, and must add technique hot water (water temperature is at 80 ~ 90 DEG C), after strong agitation, these slurries are transported in desulfurizing tower through stock pump.Magnesium hydroxide slurry is according to SO
2change, desulfurization index and pH value can regulate concentration and amount automatically.
Flue gas is after sack cleaner dedusting, and flue gas is through inlet flue duct wind blocking door access absorption tower, and cold flue gas clean after desulfurization is left absorption tower and directly discharged through chimney.
Receiving tower is a reaction vessel, and be made up of three parts, centre is spray-absorption part, and bottom is reaction tank, and top is demister part.Flue gas enters absorption tower bottom absorption tower, then turns to up, enters spray section, lowered the temperature by sprayed slurry, and in slurries, portion of water is evaporated, and cools flue gas simultaneously, SO in flue gas
2absorbed by slurries, and solution falls into reaction tank.Air through humidification is blown into reaction tank through agitator mixing by oxidation fan.Oxidation reaction occurs in pond.Agitator stirs mixing, and the solids in slurries is in suspended state, and slurries are sent to the spraying layer on absorption tower through circulating pump circulation.Flue gas after desulfurization, upwards flows through two-stage demister in spray section, and in flue gas, the water droplet overwhelming majority is removed in demister.Through cooling, the flue gas of purification dehydration leaves absorption tower at the top on absorption tower.Fresh water (FW) interruption washs demister blade with having control, except the solids of attachment removal.Mist eliminator flushing water is also for keeping the water yield of reaction tank needs.
Fresh water (FW) by regulation pressure distribution to desulphurization system, equipment and public utility.Fresh water (FW) is used for: 1, the flushing water such as pipeline, pump; 2, magnesium hydroxide slurry is prepared; 3, demister is rinsed; 4, absorption tower reaction tank liquid level is kept.
Supply water to other public utilities: water consumption in flue gas desulfurization technique process: 1 evaporation is in flue gas; 2 enter waste water system.
By oxidation fan, air is blasted in absorption tower, forced oxidation is carried out to absorption tower reaction zone slurries, magnesium sulfite is oxidized to magnesium sulfate, increase its solubility, reduce the COD of discharge slurry simultaneously.
The solution pH value of magnesium processes controls between 6 ~ 6.5, magnesium processes desulfurization is that equipment scaling blockage problem can not occur system relative to limestone-gypsum method sharpest edges, and equipment corrosion problem is comparatively limestone-gypsum method reduction also, floor space is little simultaneously, maneuverability aspect expense is low, investment reduces, and overall economic efficiency is greatly improved.Generally speaking, the security performance of magnesium processes desulfurization in Practical Project is very good.
Product due to magnesium processes desulfurization is magnesium sulfite and magnesium sulfate, both can abandon production t magnesium sulfate of also can purifying and having sold.
Therefore, a kind of wet magnesium oxide desulphurization system that the utility model provides, compact conformation, device layout is reasonable, and operating efficiency is high, strong adaptability.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Detailed description of the invention
Below by embodiment, and by reference to the accompanying drawings, the technical solution of the utility model is described in further detail.
Embodiment: as shown in Figure 1, a kind of wet magnesium oxide desulphurization system, comprises into cigarette assembly, absorption tower desulfurization module and magnesia conveying assembly, and the described cigarette assembly that enters is connected with absorption tower desulfurization module respectively with magnesia conveying assembly;
The described cigarette assembly that enters comprises smoke-intake pipe road 1, is provided with inlet baffle door 2 in described smoke-intake pipe road 1;
Described absorption tower desulfurization module comprises absorption tower 3, air communication pipe 4 and fresh water (FW) pipeline 5, upper end in described absorption tower 3 is provided with fresh water (FW) spray piping 6, the below of described fresh water (FW) spray piping 6 is provided with magnesia spray piping 7, lower end in described absorption tower 3 is provided with magnesium oxide solution 8, described air communication pipe 4 stretches in magnesium oxide solution 8, described magnesium oxide solution 8 is connected by circulating pump 9 with magnesia spray piping 7, described fresh water (FW) spray piping 6 is connected with fresh water (FW) pipeline 5, described upper end, absorption tower 3 is connected with chimney 19 by connecting pipe 10, described absorption tower 3 is connected with smoke-intake pipe road 1,
Described magnesia conveying assembly comprises magnesia powder storehouse 11 and magnesia slurry tank 12, the bottom in described magnesia powder storehouse 11 is connected with screw(-type) feeder 13 of weighing, described screw(-type) feeder 13 of weighing is connected with magnesia slurry tank 12, and described magnesia slurry tank 12 is connected with absorption tower 3 by magnesia slurry pump 15.
Described magnesia powder storehouse 11, fresh water (FW) spray piping 6, magnesia spray piping 7 are connected with compressed air piping 16 respectively.
The bottom on described absorption tower 3 is provided with the discharge pipe 17 be connected with magnesium oxide solution 8, and described discharge pipe 17 imports in sedimentation basin 18.
Claims (3)
1. a wet magnesium oxide desulphurization system, is characterized in that: comprise into cigarette assembly, absorption tower desulfurization module and magnesia conveying assembly, and the described cigarette assembly that enters is connected with absorption tower desulfurization module respectively with magnesia conveying assembly;
The described cigarette assembly that enters comprises smoke-intake pipe road (1), is provided with inlet baffle door (2) in described smoke-intake pipe road (1);
Described absorption tower desulfurization module comprises absorption tower (3), air communication pipe (4) and fresh water (FW) pipeline (5), upper end in described absorption tower (3) is provided with fresh water (FW) spray piping (6), the below of described fresh water (FW) spray piping (6) is provided with magnesia spray piping (7), lower end in described absorption tower (3) is provided with magnesium oxide solution (8), described air communication pipe (4) stretches in magnesium oxide solution (8), described magnesium oxide solution (8) is connected by circulating pump (9) with magnesia spray piping (7), described fresh water (FW) spray piping (6) is connected with fresh water (FW) pipeline (5), described absorption tower (3) upper end is connected with chimney (19) by connecting pipe (10), described absorption tower (3) is connected with smoke-intake pipe road (1),
Described magnesia conveying assembly comprises magnesia powder storehouse (11) and magnesia slurry tank (12), the bottom in described magnesia powder storehouse (11) is connected with screw(-type) feeder of weighing (13), described screw(-type) feeder of weighing (13) is connected with magnesia slurry tank (12), and described magnesia slurry tank (12) is connected with absorption tower (3) by magnesia slurry pump (15).
2. a kind of wet magnesium oxide desulphurization system according to claim 1, is characterized in that: described magnesia powder storehouse (11), fresh water (FW) spray piping (6), magnesia spray piping (7) are connected with compressed air piping (16) respectively.
3. a kind of wet magnesium oxide desulphurization system according to claim 1 and 2, it is characterized in that: the bottom on described absorption tower (3) is provided with the discharge pipe (17) be connected with magnesium oxide solution (8), described discharge pipe (17) imports in sedimentation basin (18).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520050537.9U CN204543973U (en) | 2015-01-26 | 2015-01-26 | A kind of wet magnesium oxide desulphurization system |
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| CN201520050537.9U CN204543973U (en) | 2015-01-26 | 2015-01-26 | A kind of wet magnesium oxide desulphurization system |
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| CN204543973U true CN204543973U (en) | 2015-08-12 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108854499A (en) * | 2018-08-09 | 2018-11-23 | 河南禾力能源股份有限公司 | A kind of furfural dregs boiler smoke magnesia FGD purification device |
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2015
- 2015-01-26 CN CN201520050537.9U patent/CN204543973U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108854499A (en) * | 2018-08-09 | 2018-11-23 | 河南禾力能源股份有限公司 | A kind of furfural dregs boiler smoke magnesia FGD purification device |
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