CN203663688U - Sulfur dioxide absorption tower - Google Patents
Sulfur dioxide absorption tower Download PDFInfo
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- CN203663688U CN203663688U CN201320828329.8U CN201320828329U CN203663688U CN 203663688 U CN203663688 U CN 203663688U CN 201320828329 U CN201320828329 U CN 201320828329U CN 203663688 U CN203663688 U CN 203663688U
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- sulfur dioxide
- storage tank
- circulation fluid
- tower body
- tower
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Abstract
The utility model discloses a sulfur dioxide absorption tower. The technical problem to be solved by the utility model is to provide the sulfur dioxide absorption tower capable of effectively improving the absorptivity of sulfur dioxide. The technical scheme adopted by the utility model to solve the technical problem is as follows: the sulfur dioxide absorption tower comprises a tower body and a circulating liquid pipeline, wherein an upper sealing head and a spraying device are arranged at the top of the tower body; the spraying device includes a connecting part, and a spraying part for spraying circulating liquid; the connecting part is connected with the circulating liquid pipeline; a gas outlet is formed in the side wall of the top of the tower body, and is positioned above the spraying part; a first grid plate, a filler layer, a second grid plate and a storage tank are sequentially arranged below the spraying device; a gas inlet is formed in the upper part of the side wall of the storage tank; a circulating liquid outlet, a drain port and a lower sealing head are arranged at the lower part of the side wall of the storage tank; the circulating liquid outlet is connected with the circulating liquid storage tank; the circulating liquid storage tank is also connected with the circulating liquid pipeline through a circulating pump. The sulfur dioxide absorption tower has the advantages of simple structure, low cost, simplicity in implementation and good absorption effect, and is suitable for absorbing sulfur dioxide gas.
Description
Technical field
The utility model relates to a kind of sulfur dioxide absorbing tower.
Background technology
In chlor-alkali production process, can use sodium sulfite to remove the free chlorine in salt solution.All belong to solid owing to purchasing the sodium sulfite of returning, if the resting period is slightly long, will partial oxygen change into sodium sulphate, not only lose its reduction, but also can increase the content of the sulfate ion (SO42-) in salt solution, thereby indirectly increase the consumption of barium chloride, increase the production cost of chlor-alkali enterprises.
Traditional sodium sulfite production technology is Method of Soda, and this technique is also comparatively ripe, and the carbon dioxide gas cognition discharging gradually in absorption process plays a kind of conservation of nature effect to product, makes absorption process comparatively stable.But through verification experimental verification, can also adopt sodium hydroxide solution sulfur dioxide absorption gas, control the pH value of course of reaction and produce sodium sulfite.Owing to relating to gas liquid reaction, therefore need to adopt absorption tower to react.
At present, although there are on the market many sulfur dioxide absorbing towers, its price is higher, complex structure, and assimilation effect is poor, and inapplicable and small-sized production.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of sulfur dioxide absorbing tower that can effectively improve the absorptivity of sulfur dioxide.
The utility model solves the technical scheme that its technical problem adopts: sulfur dioxide absorbing tower, comprise tower body and circulation fluid pipeline, tower body top is provided with upper cover and spray equipment, spray equipment comprises connecting portion and the spray portion for Sprayer Circulation liquid, described connecting portion is connected with circulation fluid pipeline, tower body top sidewall is provided with gas outlet, gas outlet is positioned at the top of spray portion, spray equipment below is provided with the first screen successively, packing layer, the second screen and storage tank, storage tank side wall upper part is provided with air inlet, its underpart is provided with circulation fluid outlet, discharging hole and low head, circulation fluid outlet is connected with circulation fluid storage tank, circulation fluid storage tank is connected with circulation fluid pipeline by circulating pump again.
Concrete, also comprising liquid level gauge mouth, liquid level gauge mouth is positioned at storage tank sidewall, and described liquid level gauge mouth comprises suitable for reading and end opening, and end opening is arranged at storage tank lower sidewall, the top that is positioned at end opening suitable for reading.
Concrete, also comprising the first manhole, described the first manhole is arranged at packing layer lower sidewall.
Further, also comprise the second manhole, described the second manhole is arranged on storage tank.
Concrete, the filler in described packing layer is CPVC garland.
Concrete, described air inlet extends into tower body inside, and its shape that extends into one end of tower body inside is 120 ° of wedge shapes.
Concrete, described upper cover and spray equipment design for integral type, and the connecting portion of spray equipment is connected with circulation fluid pipeline by flange.
As the preferred version of technique scheme, this absorption tower also comprises liquid seal device, and described circulation fluid outlet is connected with circulation fluid storage tank by liquid seal device.
Concrete, the first screen is identical with the structure of the second screen, and the first screen and tower body be for removably connecting, the second screen with tower body for being fixedly connected with.
Further, state spray equipment spray portion and comprise supervisor and arm, supervisor and arm be vertical setting mutually, described arm be at least one and sealed at both ends, be responsible for top and be provided with pore, on arm, be provided with the spray apertures with angle at 45 °, vertical below.
The beneficial effects of the utility model are: adopt screen water conservancy diversion and packing layer, increase time of contact and the contact area of sulfur dioxide gas and circulation fluid, reasonable in design, simple in structure, with low cost, be easy to realize, good absorbing effect, easy and simple to handle, can effectively improve the absorptivity of sulfur dioxide, make the tail gas can qualified discharge, practical, be applicable to small business and use.The utility model is applicable to sulfur dioxide absorption gas.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
The structural representation of Fig. 2 air inlet of the present utility model;
Fig. 3 is first grid plate structure schematic diagram of the present utility model;
Fig. 4 is spray equipment structural representation of the present utility model;
Wherein, 1 is tower body, and 2 is upper cover, and 3 is spray equipment, 4 is gas outlet, and 5 is the first screen, and 6 is packing layer, and 7 is the second screen, 8 is storage tank, and 9 is air inlet, and 10 is circulation fluid outlet, and 11 is discharging hole, 12 is liquid level gauge mouth, and 13 is low head, and 14 is the first manhole, and 15 is the second manhole, 16 is circulation fluid pipeline, and 17 is circulation fluid storage tank, and 18 is circulating pump, and 19 is liquid seal device, 30 is pore, and 31 is supervisor, and 32 is arm.
The specific embodiment
Below in conjunction with drawings and Examples, describe the technical solution of the utility model in detail.
As shown in Figure 1, sulfur dioxide absorbing tower of the present utility model, comprise tower body 1 and circulation fluid pipeline 16, tower body 1 top is provided with upper cover 2 and spray equipment 3, spray equipment 3 comprises connecting portion and the spray portion for Sprayer Circulation liquid, described connecting portion is connected with circulation fluid pipeline 16, tower body 1 top sidewall is provided with gas outlet 4, gas outlet 4 is positioned at the top of spray portion, spray equipment 3 belows are provided with the first screen 5 successively, packing layer 6, the second screen 7 and storage tank 8, storage tank 8 side wall upper part are provided with air inlet 9, its underpart is provided with circulation fluid outlet 10, discharging hole 11 and low head 13, circulation fluid outlet 10 is connected with circulation fluid storage tank 17, circulation fluid storage tank 17 is connected with circulation fluid pipeline 16 by circulating pump 18 again.
Gas outlet 4 is positioned at the top of spray portion, in order to avoid spray equipment 3 sprays circulation fluid in gas outlet 4 while spraying.In circulation fluid pipeline 16, deposit the effectively circulation fluid of sulfur dioxide absorption.The gas that contains sulfur dioxide is introduced by near sulfuric acid plant fan outlet, is entered by the air inlet 9 of tower body 1.Because fan outlet has certain pressure, can make sulfur dioxide gas from bottom to top motion in tower body 1; Circulation fluid in circulation fluid storage tank 17 is if alkali lye is under the effect of circulating pump 18, enter spray equipment 3 by circulation fluid pipeline 16, then sprayed from top to bottom by spray equipment 3, enter packing layer 6 by the first screen 5 water conservancy diversion, in packing layer 6, contact and react with the sulfur dioxide gas rising.The gas of getting rid of sulfur dioxide further rises to tower body 1 top, and is discharged by the gas outlet 4 of side.The alkali lye that has absorbed sulfur dioxide enters tower body storage tank 8 through the second screen 7 water conservancy diversion, further flows in circulation fluid storage tank 17 and recycles.In the time that circulation fluid pH value is reduced to 8～9, reaction reaches terminal, stops absorbing.Now can utilize discharging hole 11 that the remaining liq in tower body 1 is discharged.
Consider that circulation fluid used has corrosivity, tower body 1 can adopt UPVC material pipeline so that corrosion-resistant.UPVC claims again hard PVC, is that the amorphous thermoplastic resin that VCM supports through polymerisation adds certain additive (as stabilizing agent, lubricant, filler etc.) composition.In fact UPVC pipe is exactly a kind of plastic tube, and corrosion resistance is strong, and fluid resistance is little, inner wall smooth, and surface roughness is low, and the intensity of unloading is high, water pressure resistance, shock resistance, tensile strength, health is nontoxic, and security is good.In concrete application process, can consider that tower body 1 adopts Φ 800*4000UPVC pipeline, tower diameter is 800mm, and high 4000mm is easy to realize.
For the ease of observing the liquid level situation in storage tank 8, also comprise and be positioned at storage tank 8 sidewall liquid level gauge mouths 12, because liquid level gauge mouth 12 generally comprises suitable for reading and end opening, described end opening is arranged on storage tank 8 lower sidewall, the top that is positioned at end opening suitable for reading.
Overhaul packing layer 6 for the ease of maintenance personal, be provided with the first manhole 14 in packing layer 6 lower sidewall.In like manner, for the ease of maintenance storage tank 8, on storage tank 8, be provided with the second manhole 15.
In order to improve the surface area of packing layer, increase the contact area of sulfur dioxide gas and circulation fluid, improve the absorptivity of sulfur dioxide, the filler in described packing layer 6 is CPVC garland.To be that Corvic is chlorination modified make CPVC.Stable chemical performance, heat resistance is high.Tubing is mainly for the production of sheet material etc., high temperature resistant, high pressure, and quality is light, and heat-proof quality is good, without insulation.In concrete application process, can choose the CPVC garland of Φ 51*19, diameter is 51mm, length 19mm.In real work, can also adjust according to actual conditions the height of packing layer, so that more effective sulfur dioxide absorption gas.
As shown in Fig. 1 and 2, air inlet of the present utility model extends into tower body 1 inside, and its shape that extends into one end of tower body 1 inside is 120 ° of wedge shapes, to guarantee that circulation fluid can not enter gas phase pipeline by air inlet 9, what described gas phase pipeline connected is air inlet 9, the gas that contains sulfur dioxide enters sulfur dioxide absorbing tower by this pipeline, can also make distribution of gas more even.
For the ease of maintenance and dismounting, described upper cover 2 is with spray equipment 3 for integral type designs, and the connecting portion of spray equipment 3 is connected with circulation fluid pipeline 16 by flange.
In order to prevent entering circulation fluid storage tank 17 without the gas absorbing, on circulation fluid pipeline 16, be provided with liquid seal device 19, described circulation fluid outlet 10 is connected with circulation fluid storage tank 17 by liquid seal device 19.Circulation fluid storage tank 17 can adopt FRP/PVC material, in-built 10%～13% sodium hydroxide solution.
In order to make uniform spraying, the axle center of the axle center of described spray equipment 3 and tower body 1 coincides.
If Fig. 3 is the structural representation of the first screen 5, on it, be provided with opening, its effect is air guide and circulation fluid is uniformly distributed, do not cause bias current, specifically even circulation fluid water conservancy diversion is entered to packing layer 6, can not cause the general or Concerning Flooding Phenomenon of gas, make the sulfur dioxide gas rising effectively to enter tower body 1 top by opening simultaneously.The effect of the second screen 7 is to support filler air guide.Therefore, the second screen 7 need to have certain intensity to support the filler on top, needs again evenly perforate thereon simultaneously, to guarantee that sulfur dioxide gas can enter packing layer 6 uniformly; The first screen 5 does not need sufficient intensity, but needs on it perforate even, to guarantee the Uniform Flow of sulfur dioxide gas and circulation fluid.Therefore,, for convenient material and the processing and fabricating bought, the first screen 5 and the second screen 7 can be designed to same structure.In order to support the first screen 5 and the second screen 7, can be in the first screen 5 bottoms and the second screen 7 bottom welding supports, support welding is on tower body 1 sidewall.In order to fix the second screen 7, the second screen 7 can be welded on support, with tower body 1 for being fixedly connected with; The first screen 5 can directly be placed on support.In order to load and change filler, the first screen 5 is fixing, with tower body 1 for removably connecting.
As shown in Figure 4, hatching is positioned at spray subordinate side, can find out that the spray portion of spray equipment 3 comprises supervisor 31 and arm 32, supervisor 31 and arm 32 vertical setting mutually, described arm 32 be at least one and sealed at both ends, supervisor 31 tops be provided with pore 30, to discharge the gas in spray portion; On arm 32, be also provided with and the spray apertures at angle at 45 °, vertical below, guarantee that circulation fluid can spray uniformly.
Adopt after the utility model, the content of sulfur dioxide in gas is reduced to 70mg/m3 by original 10%, and assimilation effect is better, can reach the discharge standard of sulfur dioxide.
Claims (10)
1. sulfur dioxide absorbing tower, it is characterized in that, comprise tower body (1) and circulation fluid pipeline (16), tower body (1) top is provided with upper cover (2) and spray equipment (3), spray equipment (3) comprises connecting portion and the spray portion for Sprayer Circulation liquid, described connecting portion is connected with circulation fluid pipeline (16), tower body (1) top sidewall is provided with gas outlet (4), gas outlet (4) is positioned at the top of spray portion, spray equipment (3) below is provided with the first screen (5) successively, packing layer (6), the second screen (7) and storage tank (8), storage tank (8) side wall upper part is provided with air inlet (9), its underpart is provided with circulation fluid outlet (10), discharging hole (11) and low head (13), circulation fluid outlet (10) is connected with circulation fluid storage tank (17), circulation fluid storage tank (17) is connected with circulation fluid pipeline (16) by circulating pump (18) again.
2. sulfur dioxide absorbing tower as claimed in claim 1, is characterized in that, also comprises liquid level gauge mouth (12), liquid level gauge mouth (12) is positioned at storage tank (8) sidewall, described liquid level gauge mouth (12) comprises suitable for reading and end opening, and end opening is arranged at storage tank (8) lower sidewall, the top that is positioned at end opening suitable for reading.
3. sulfur dioxide absorbing tower as claimed in claim 1, is characterized in that, also comprises the first manhole (14), and described the first manhole (14) is arranged at packing layer (6) lower sidewall.
4. sulfur dioxide absorbing tower as claimed in claim 1, is characterized in that, also comprises the second manhole (15), and described the second manhole (15) is arranged on storage tank (8).
5. sulfur dioxide absorbing tower as claimed in claim 1, is characterized in that, the filler in described packing layer (6) is CPVC garland.
6. sulfur dioxide absorbing tower as claimed in claim 1, is characterized in that, described air inlet (9) extends into tower body (1) inside, and its shape that extends into the inner one end of tower body (1) is 120 ° of wedge shapes.
7. sulfur dioxide absorbing tower as claimed in claim 1, is characterized in that, described upper cover (2) is with spray equipment (3) for integral type designs, and the connecting portion of spray equipment (3) is connected with circulation fluid pipeline (16) by flange.
8. sulfur dioxide absorbing tower as claimed in claim 1, is characterized in that, also comprises liquid seal device (19), and described circulation fluid outlet (10) is connected with circulation fluid storage tank (17) by liquid seal device (19).
9. sulfur dioxide absorbing tower as claimed in claim 1, is characterized in that, the first screen (5) is identical with the structure of the second screen (7), and the first screen (5) and tower body (1) be for removably connecting, the second screen (7) with tower body (1) for being fixedly connected with.
10. according to the sulfur dioxide absorbing tower described in any one in claim 1 to 9, it is characterized in that, described spray portion comprises supervisor (31) and arm (32), supervisor (31) and arm (32) be vertical setting mutually, described arm (32) be at least one and sealed at both ends, supervisor (31) top is provided with pore (30), is provided with the spray apertures with angle at 45 °, vertical below on arm (32).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320828329.8U CN203663688U (en) | 2013-12-13 | 2013-12-13 | Sulfur dioxide absorption tower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320828329.8U CN203663688U (en) | 2013-12-13 | 2013-12-13 | Sulfur dioxide absorption tower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203663688U true CN203663688U (en) | 2014-06-25 |
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ID=50960023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320828329.8U Expired - Fee Related CN203663688U (en) | 2013-12-13 | 2013-12-13 | Sulfur dioxide absorption tower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203663688U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107405568A (en) * | 2015-03-20 | 2017-11-28 | 通用电器技术有限公司 | For the system from flue gas desulfurization |
-
2013
- 2013-12-13 CN CN201320828329.8U patent/CN203663688U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107405568A (en) * | 2015-03-20 | 2017-11-28 | 通用电器技术有限公司 | For the system from flue gas desulfurization |
| CN107405568B (en) * | 2015-03-20 | 2021-01-19 | 通用电器技术有限公司 | System for removing sulfur from flue gas |
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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: 20140625 Termination date: 20151213 |
|
| EXPY | Termination of patent right or utility model |