CN101837226A - Absorbing tower - Google Patents
Absorbing tower Download PDFInfo
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- CN101837226A CN101837226A CN200910244120A CN200910244120A CN101837226A CN 101837226 A CN101837226 A CN 101837226A CN 200910244120 A CN200910244120 A CN 200910244120A CN 200910244120 A CN200910244120 A CN 200910244120A CN 101837226 A CN101837226 A CN 101837226A
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- desulfurizing agent
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Abstract
The invention provides an absorbing tower, which comprises a casing, a poor desulfurizer inlet, a clean flue gas outlet, a rich desulfurizer outlet, a liquid distributor and a filler layer, wherein the casing is arranged at a flue gas inlet at the lower part of the casing; the poor desulfurizer inlet is arranged at the upper part of the casing for absorbing sulfur dioxide at the preset temperature, analyzing a poor desulfurizer of the sulfur dioxide at above the preset temperature and supplying the poor desulfurizer to the inside of the casing; the clean flue gas outlet is arranged at the top of the casing and is used for exhausting clean flue gas in which the sulfur dioxide is removed; the rich desulfurizer outlet is arranged at the bottom of the casing and is used for exhausting a rich desulfurizer absorbing the sulfur dioxide; the liquid distributor is arranged in the casing and an inlet of the liquid distributor is connected with the poor desulfurizer inlet; and the filler layer is arranged between the poor desulfurizer inlet and the flue gas inlet. The absorbing tower can realize the flue gas desulfurization and ensure that raw flue gas and the desulfurizer form multistage reverse flow contact, thereby ensuring the sulfur dioxide in the raw flue gas is fully absorbed.
Description
Technical field
The present invention relates to a kind of absorption tower, especially relate to a kind of absorption tower of using in can the flue gas desulfurization of recycling desulfurizer.
Background technology
Sulfur dioxide pollution has become the key factor of restriction China economy, social sustainable development, and it is imperative therefore to control sulfur dioxide pollution.At present, can adopt desulfurization and three kinds of desulfurization methods of burning back desulfurization in the preceding desulfurization of burning, the burning by the residing aborning position of sulfur removal technology difference.Wherein, the gas fume after burning desulfurization is to control the main means that the sulfur dioxide gas body pollution is adopted at present in the world.This desulfur technology has a variety of, is broadly divided into dry method, semidry method and wet method three classes by the reactiveness of sulfur removal technology.Wherein in China, wet type limestone-gypsum method flue gas desulfurization technology accounts for more than 90%, but this technology also exist by-produced gypsum be difficult to utilize again, produce when removing sulfur dioxide carbon dioxide and desulfurizing agent can't be recycling etc. problem.
Therefore, be badly in need of a kind of novel fume desulphurization method and the equipment of use thereof, can when removing sulfur dioxide in flue gas, can also avoid byproduct to be difficult to utilize again, produce carbon dioxide and desulfurizing agent can be recycling etc. problem.
Summary of the invention
Purpose of the present invention is intended to one of solve the problems of the technologies described above at least.For this reason, one object of the present invention is to propose a kind of byproduct that can solve and is difficult to utilize again, the absorption tower of using in the problem of generation carbon dioxide and the flue gas desulfurization that desulfurizing agent can be recycling.
For achieving the above object, the present invention proposes a kind of absorption tower, comprising: housing; Be located at the smoke inlet of lower housing portion;
Poor desulfurizing agent inlet, described poor desulfurizing agent inlet are provided with housing top being fed in the housing at the poor desulfurizing agent that predetermined temperature absorbs sulfur dioxide and parse sulfur dioxide more than predetermined temperature; Be located at case top, be used to discharge the clean exhanst gas outlet of removing the clean flue gas behind the sulfur dioxide; Be located at housing bottom, be used to discharge the rich desulfurizing agent outlet of the rich desulfurizing agent that absorbed sulfur dioxide; Liquid distribution trough, described liquid distribution trough are arranged in the housing and the inlet of liquid distribution trough links to each other with poor desulfurizing agent inlet; And packing layer, described packing layer is arranged between poor desulfurizing agent inlet and the smoke inlet.
According to absorption tower of the present invention, when removing sulfur dioxide in flue gas, flue gas and capable of regeneration desulfurizing agent counter current contacting, thus improved the efficient that from flue gas, absorbs sulfur dioxide.
Also have following additional technical feature according to absorption tower of the present invention:
Absorption tower according to the present invention may further include demister, and described demister is arranged in the housing and between clean exhanst gas outlet and poor desulfurizing agent enter the mouth.
Thus, the flue gas drying of discharging the absorption tower be can make, moisture and absorbent avoided taking away.
Described demister comprises first and second demisters, and wherein first demister is positioned at second demister top and spaced apart preset distance.
Described demister is deflection plate demister or mesh mist eliminator.
Described packing layer is made of metallurgic orifice corrugated packing.
Silk screen or ring that described packing layer is made by stainless steel constitute.
The upper and lower of described housing is respectively equipped with the absorption tower manhole.
On described housing, below smoke inlet, be provided with the absorbing tower liquid-level meter.
On described housing, below smoke inlet, be provided with the absorption tower thermo detector.
Be provided with the bearing that is used for supporting body in the bottom of described housing.
Aspect that the present invention adds and advantage part in the following description provide, and part will become obviously from the following description, or recognize by practice of the present invention.
Description of drawings
Above-mentioned and/or additional aspect of the present invention and advantage are from obviously and easily understanding becoming the description of embodiment below in conjunction with accompanying drawing, wherein:
Fig. 1 is the schematic diagram that comprises according to the flue gas desulphurization system on the absorption tower of the embodiment of the invention;
Fig. 2 is the structural representation according to the absorption tower of the embodiment of the invention;
Fig. 3 is the structural representation of regenerator shown in Fig. 1;
The schematic flow sheet of Fig. 4 for using flue gas desulphurization system shown in Figure 1 to carry out desulfurization; With
Fig. 5 another schematic flow sheet for using flue gas desulphurization system shown in Figure 1 to carry out desulfurization.
The specific embodiment
Describe embodiments of the invention below in detail, the example of described embodiment is shown in the drawings, and wherein identical from start to finish or similar label is represented identical or similar elements or the element with identical or similar functions.Below by the embodiment that is described with reference to the drawings is exemplary, only is used to explain the present invention, and can not be interpreted as limitation of the present invention.
In description of the invention, close the orientation of indications such as term " top ", " bottom ", " top ", " bottom ", " top ", " below " or position is based on orientation shown in the drawings or position relation, only be the present invention for convenience of description rather than require the present invention therefore can not be interpreted as limitation of the present invention with specific orientation structure and operation.
In addition, in order to understand the present invention better, before describing, the part term that uses in need describing the present invention simply explain, " poor desulfurizing agent " be meant the desulfurizing agent that does not absorb sulfur dioxide or parsed absorb the desulfurizing agent (lean solution agent) of sulfur dioxide." rich desulfurizing agent " is meant the desulfurizing agent (rich solution agent) that has absorbed sulfur dioxide, wherein, if rich desulfurizing agent removes wherein sulfur dioxide by twice above parsing, so in the present invention, after the one parsing and resolve for the last time desulfurizing agent before the desulfurization also can be called in the middle of poor desulfurizing agent, desulfurizing agent after the last parsing desulfurization is called poor desulfurizing agent, if rich desulfurizing agent only removes wherein sulfur dioxide by one parsing, the desulfurizing agent after the one parsing desulfurization just is called poor desulfurizing agent so.
The flue gas desulphurization system that comprises according to the absorption tower of the embodiment of the invention is at first described below.
As shown in Figure 1, flue gas desulphurization system mainly comprises absorption tower 10 and regenerator 12.
The flue gas that contains sulfur dioxide 10 bottom is sent into absorption tower 10 from the absorption tower, poor desulfurizing agent 10 top is sent into absorption tower 10 from the absorption tower, thereby poor desulfurizing agent flows downward in absorption tower 10, flue gas in absorption tower 10 on flow, the two counter current contacting, thus poor desulfurizing agent with process that flue gas contacts in absorb wherein sulfur dioxide.The clean flue gas that removes sulfur dioxide 10 top is discharged from the absorption tower, and the liquid rich desulfurizing agent that has absorbed sulfur dioxide 10 bottom is discharged from the absorption tower.
The 10 rich desulfurizing agents of discharging are sent into regenerator 12 after heating up from the absorption tower, in regenerator 12, because temperature raises, rich desulfurizing agent parses the sulfur dioxide that is absorbed, become poor desulfurizing agent, and the poor desulfurizing agent that the sulfur dioxide that parses is discharged from regenerator 12 turns back in the absorption tower 10 through cooling recycling.
Below with reference to the absorption tower 10 of Fig. 2 description according to the embodiment of the invention.
As shown in Figure 2, absorption tower 10 comprises housing 111, smoke inlet 100, poor desulfurizing agent inlet 101, clean exhanst gas outlet 106, rich desulfurizing agent outlet 102, liquid distribution trough 104 and packing layer 103.
Clean exhanst gas outlet 106 is arranged on the top of housing 111, has sloughed the clean flue gas behind the sulfur dioxide and has discharged absorption tower 10 from exhanst gas outlet 106.Rich desulfurizing agent outlet 102 is arranged on the bottom of housing 111, and the rich desulfurizing agent that has absorbed sulfur in smoke in housing 111 is discharged absorption tower 10 from rich desulfurizing agent outlet 102.
In an example of the present invention, packing layer 103 can be made of metallurgic orifice corrugated packing.Alternatively, packing layer 103 also can be made of silk screen or the ring that stainless steel is made.Certainly, packing layer 103 also can be made of other suitable materials.Described stainless steel and metal can be the Q235-B+904L stainless steel.
As shown in Figure 2, in an example of the present invention, in housing 111, be provided with demister 105 between clean exhanst gas outlet 106 and poor desulfurizing agent inlet 101, demister 105 is used for removing the moisture of clean flue gas.More specifically, demister 105 comprises first and second demisters, and first demister is arranged on second demister top and spaced apart preset distance, thereby clean flue gas is carried out twice demist, makes that the clean flue gas of discharging is dry more.Demister 105 can be deflection plate demister or mesh mist eliminator.
In a concrete example of the present invention, on the sidewall of housing 111 bottoms, below smoke inlet 100, be provided with absorbing tower liquid-level meter 108, be used to detect the liquid level in the housing 111, so that in time discharge the rich desulfurizing agent that has absorbed sulfur dioxide.In another example, on the sidewall of housing 111 bottoms, below smoke inlet 100, for example relatively be provided with absorption tower thermo detector 109, be used to measure the temperature in the housing 111, so that make poor desulfurizing agent absorb sulfur in smoke better with absorbing tower liquid-level meter 108.
Alternatively, the upper and lower of housing 111 is respectively equipped with absorption tower manhole 110, is used for maintenance and uses.
According to embodiments of the invention, desulfurizing agent can be organic amine desulfurizer, dimethylaniline for example, and monoethanolamine, and diethanol amine,
Above-mentioned organic amine desulfurizing agent can absorb sulfur dioxide at predetermined temperature, and can the temperature more than predetermined temperature parse sulfur dioxide, for example in 40-50 degree centigrade scope, the temperature of desulfurizing agent parsing sulfur dioxide for example can be at 100 degrees centigrade for described predetermined temperature.
Certainly, desulfurizing agent is not limited to above-mentioned concrete example, as long as desulfurizing agent can absorb sulfur dioxide under low relatively temperature, and it is just passable to resolve sulfur dioxide under high relatively temperature, the name that for example can use commercially available Chengdu Huaxi Industrial Gas Co., Ltd. to produce is called " ionic liquid desulfurizing agent ", and model is the desulfurizing agent of HXDS01.
The regenerator 12 of flue gas desulphurization system is described below with reference to Fig. 3.
As shown in Figure 3, regenerator 12 comprises body 120, sulfur dioxide outlet 121, rich desulfurizing agent inlet 125, middle poor desulfurizing agent outlet 131, middle poor desulfurizing agent inlet 132, poor desulfurizing agent outlet 133, first packing layer 124, second packing layer 127, the 3rd packing layer 129, first liquid re-distributor 126 and second liquid re-distributor 128.
Middle poor desulfurizing agent outlet 131 is arranged on the sidewall of body 120 and is positioned at the below of rich desulfurizing agent inlet 125, the rich desulfurizing agent that is sent to from absorption tower 10 in the body 120 becomes poor desulfurizing agent (middle poor desulfurizing agent) after the intensification one parsing goes out sulfur dioxide, do not discharge, but discharge body 120 by middle poor desulfurizing agent outlet 131 from poor desulfurizing agent outlet 133.Correspondingly, middle poor desulfurizing agent inlet 132 in the middle of being arranged on the body 120 poor desulfurizing agent outlet 131 below, the one parsing that poor desulfurizing agent outlet 131 is discharged from the centre goes out the poor desulfurizing agent in centre of sulfur dioxide through heating up once more (for example by reboiler 24, as shown in Figure 1) poor desulfurizing agent inlet 132 turns back in the body 120 from the centre, so that parse sulfur dioxide once more in body 120, the poor desulfurizing agent that parses whole sulfur dioxide is once more discharged body 120 by poor desulfurizing agent outlet 133.
Poor desulfurizing agent outlet 133 is arranged on the bottom of body 120, is used to discharge the poor desulfurizing agent of the poor desulfurizing agent body that parses sulfur dioxide once more.
Here, be appreciated that, from absorption tower 10 by rich desulfurizing agent inlet 125 send in the body 120 rich desulfurizing agent one parsing go out become behind the part sulfur dioxide in the middle of poor desulfurizing agent, the poor desulfurizing agent in centre after the one parsing can be discharged body 120 by middle poor desulfurizing agent outlet 131, and then poor desulfurizing agent inlet 132 returns body 120 and resolves once more from the centre heating back, becomes the poor desulfurizing agent that parses whole sulfur dioxide.
First liquid re-distributor 126 is arranged in the body 120 and between second packing layer 127 and rich desulfurizing agent inlet 125, second liquid re-distributor 128 is arranged in the body 120 and between second packing layer 127 and the 3rd packing layer 129.
More specifically, first liquid re-distributor 126 is arranged on second packing layer, 127 tops, be used on the cross section of body 120, distributing equably from the rich desulfurizing agent inlet 125 rich desulfurizing agents that supply in the body 120, thereby make rich desulfurizing agent resolve desulfurization better.
Second liquid re-distributor 128 is used for distributing the desulfurizing agent that flows down from second packing layer 127 equably, further makes desulfurizing agent resolve desulfurization.
As shown in Figure 3, in an example of the present invention, regenerator 12 can comprise reflux inlet 122, and reflux inlet 122 is arranged on the body 120 and is positioned at first packing layer, 124 tops and sulfur dioxide exports 121 belows.In addition, in body 120, between the reflux inlet 122 and first packing layer 124, backflow distributor 123 can be set.The sulfur dioxide of discharging from the sulfur dioxide outlet 121 at body 120 tops contains moisture, therefore can carry out condensation to the sulfur dioxide of discharging by condenser 18 and gas-liquid separator 19 (as shown in Figure 1) and obtain highly purified sulfur dioxide gas and condensate liquid (for example saturated sulfurous acid solution) from sulfur dioxide outlet 121, condensate liquid can turn back in the body 120 by reflux inlet 122, and the condensate liquid that turns back in the body 120 can distribute by backflow distributor 123, fully reclaims desulfurizing agent thus.
By first packing layer 124, second packing layer 127 and the 3rd packing layer 129 and corresponding first liquid re-distributor 126 and second liquid re-distributor 128 and backflow distributor 123 are set, in body 120, can obtain higher mass-transfer efficiency and lower pressure drop, improve and resolve effect.
As shown in Figure 3, in an example of the present invention, be at rich desulfurizing agent inlet 125 and be provided with distributor 1251 in the body 120.More specifically, be connected with one section pipe at rich desulfurizing agent 125 places that enter the mouth in body 120, tube wall is provided with dispensing orifice, is used for reallocating from the rich desulfurizing agent inlet 125 rich desulfurizing agents of sending into, and resolves effect thereby further improve.
In a concrete example of the present invention, on the sidewall of body 120, the height place of poor desulfurizing agent inlet 132 is provided with regenerator liquid level gauge 137 in the centre, is used to detect the liquid level in the body 120, so that in time discharge the poor desulfurizing agent that parses sulfur dioxide.In addition, above regenerator liquid level gauge 137, also be provided with regenerator thermo detector 134, be used to measure the temperature in the body 120, so that make rich desulfurizing agent parse sulfur dioxide better.
Alternatively, the upper and lower of body 120 is respectively equipped with regenerator manhole 136, is used for maintenance and uses.
In an example of the present invention, as shown in Figure 3, in body 120, between the poor desulfurizing agent outlet in centre the 131 and the 3rd packing layer 129, be provided with dividing plate 1301, on dividing plate 1301, be respectively equipped with liquid trap 130.The sulfur dioxide that parses from desulfurizing agent below dividing plate 1301 enters liquid trap 130 from below, thereby the gaseous state part is come out upwards to advance from liquid trap 130 tops and is discharged from sulfur dioxide outlet 121, and liquid part is collected in the liquid trap 130, drop into body 120 bottom cycle utilizations downwards, reduced the liquid component in the sulfur dioxide.
Return below with reference to figure 1 and describe flue gas desulphurization system.
As mentioned above, the rich desulfurizing agent outlet 102 on the absorption tower 10 of flue gas desulphurization system links to each other with the rich desulfurizing agent inlet 125 of regenerator 12, and the poor desulfurizing agent inlet 101 on absorption tower 10 links to each other with the poor desulfurizing agent outlet 133 of regenerator 12.In an example of the present invention, between absorption tower 10 and regenerator 12, be provided with rich or poor desulfurizing agent heat exchanger 13.More specifically, the entrance and exit of a path of rich or poor desulfurizing agent heat exchanger 13 links to each other with the rich desulfurizing agent outlet 102 on absorption tower 10 and the rich desulfurizing agent inlet 125 of regenerator 12 respectively, the outlet on rich or poor desulfurizing agent heat exchanger 13 another roads links to each other with the poor desulfurizing agent outlet 133 of regenerator 12 and the poor desulfurizing agent inlet 101 on absorption tower 10 respectively with inlet, thereby the 10 rich desulfurizing agents of discharging and the poor desulfurizing agent of discharging from regenerator 12 carry out the heat exchange 10 rich desulfurizing agents of discharging from the absorption tower that heat up thus from the absorption tower, so that resolve removal sulfur dioxide in regenerator 12, and that the poor desulfurizing agent of discharging from regenerator 12 is sent into absorption tower 10 after by the heat exchange cooling is recycling.
As shown in Figure 1, flue gas desulphurization system further comprises flue gas and treating apparatus 11, thereby is used for the flue gas that enters absorption tower 10 is carried out the dustiness that preliminary treatment reduces flue gas, for example the fume amount in the flue gas is reduced to≤300mg/Nm
3Pretreated flue gas blasts in the absorption tower 10 from the smoke inlet 100 on absorption tower 10 after by booster fan 20 superchargings.Flue gas on absorption tower 10 upwards with top poor desulfurizing agent counter current contacting down, thereby poor desulfurizing agent absorption sulfur in smoke becomes rich desulfurizing agent.The clean flue gas that has removed sulfur dioxide enters chimney 15 dischargings from clean exhanst gas outlet 106 discharges.
Rich desulfurizing agent utilizes rich solution pump 17 to deliver in the rich or poor desulfurizing agent heat exchanger 13 from rich desulfurizing agent outlet 102, enters regenerator 12 through heat exchange.
Rich desulfurizing agent after the intensification parses part sulfur dioxide in regenerator 12, poor desulfurizing agent in the middle of becoming, the poor desulfurizing agent in this centre is discharged regenerator 12 by middle poor desulfurizing agent outlet 131, entering reboiler 24 heats up once more by steam, enter regenerator 12 by the poor desulfurizing agent inlet 132 in centre then and resolve desulfurization once more, thereby can parse the sulfur dioxide of absorption more up hill and dale.
The pressure that the thermal source of reboiler 24 provides for the outside is the steam of 0.3MPa.
The sulfur dioxide gas connected component saturated vapor that parses is upwards discharged by sulfur dioxide outlet 121.In an example of the present invention, export 121 places at sulfur dioxide and be connected with condenser 18 and gas-liquid separator 19.The sulfur dioxide of discharging from regenerator 12 by condensation separates with gas-liquid separator 19, obtains sulfur dioxide gas and condensate liquid (saturated sulfurous acid solution), and condensate liquid returns regenerator 12 from the reflux inlet 122 of regenerator 12 by reflux pump 21.In resolving, highly acid salt (as sulfate radical and salt acid group) is heat stable salt, can not parse, thereby SO
2Product has extreme high purity (butt is more than 99%).Highly purified sulfur dioxide gas can be used to produce the good raw material of sulfur dioxide liquid, sulfuric acid, sulphur and other chemical products.
The poor desulfurizing agent of falling regenerator 12 bottoms enters rich or poor desulfurizing agent heat exchanger 13 and carries out heat exchange, and it is recycling that the cooling back is returned absorption tower 10 by lean pump 16 from poor desulfurizing agent inlet 101.
As shown in Figure 1, desulphurization system also comprises underground tank 25 and storage tank 23, and underground tank 25 is used for storing poor desulfurizing agent, and storage tank 23 is used to store poor desulfurizing agent temporarily.Storage tank 23 can link to each other with underground tank 25, is used for replenishing in storage tank 23 poor desulfurizing agent.Underground tank 25 and storage tank 23 can with link to each other by lean pump 16 and poor desulfurizing agent inlet 101, be used for additional poor desulfurizing agent in absorption tower 10.Between storage tank 23 and lean pump 16, fluid infusion pump 22 can also be set, be used for optionally from storage tank 23 directly to absorption tower 10 complementary goods desulfurizing agents.
10 poor desulfurizing agent, 101 places that enter the mouth can be provided with cleaning equipment 14 on the absorption tower, are used for the poor desulfurizing agents that supply in the absorption tower 10 are purified.Cleaning equipment 14 is mainly used in to be removed flue gas 11 and is brought into solid matter, organic substance and yin, yang ion etc. in the desulfurizing agent.In an example of the present invention, the capital equipment of cleaning equipment 14 is made up of front filter, adsorption tank, after-filter, salting out tank, clarifier etc.Front filter, after-filter are mainly used in the solid impurity that removes in the solution; Adsorption tank is mainly used in the organic impurities that removes in the solution; Salting out tank, clarifier etc. mainly remove the zwitterion impurity in the solution, and the desulfurizing agent after purifying can enter in the system of the present invention and continue to recycle.
The flow process of flue gas desulfurization is described below with reference to Fig. 4.
At first, flue gas is transported to the bottom on absorption tower 10 by booster fan 20.The poor desulfurizing agent of temperature lower (for example 40-50 degree centigrade) is transported in the absorption tower 10 from the top on absorption tower 10.In the packing layer 103 on absorption tower 10, poor desulfurizing agent contacts with flue gas adverse current and carries out desulfurization, and poor desulfurizing agent becomes rich desulfurizing agent after having absorbed sulfur in smoke.Reach the purpose that removes sulfur dioxide in flue gas thus, and the flue gas after being purified water content is higher, the flue gas that reaches capacity substantially can enter atmosphere through tail gas funnel.
The rich desulfurizing agent that to collect by rich solution pump 17 is transported in the rich or poor desulfurizing agent heat exchanger 13, heat up, enter regenerator 12 tops after being warming up to about 100 ℃ through the second and the 3rd packing layer 127,129 carry out one parsing to parse the sulfur dioxide of absorption, the desulfurizing agent that one parsing goes out sulfur dioxide gas becomes middle poor desulfurizing agent, the poor desulfurizing agent of process one parsing is through the second and the 3rd packing layer 127, enter reboiler 24 after 129, resolve once more, desulfurizing agent becomes poor desulfurizing agent, thereby more up hill and dale sulfur dioxide being parsed becomes gas phase (stripping) and obtains poor desulfurizing agent, the sulfur dioxide that parses is discharged regenerator 12 from the sulfur dioxide outlet 121 of regenerator 12, and poor desulfurizing agent is discharged regenerator 12 from the poor desulfurizing agent outlet 133 of regenerator 12.
Another flow process of flue gas desulfurization is described below with reference to Fig. 5.
Compare with embodiment illustrated in fig. 4, before flue gas enters absorption tower 10, purify, to reduce the dustiness in the flue gas.
Comprise that in addition the sulfur dioxide to discharging from regenerator 12 tops carries out condensation by condenser 18, and by gas-liquid separator 19 the saturated sulfurous acid solution of condensation is separated with sulfur dioxide gas, obtain the good raw material that highly purified sulfur dioxide gas can be used as production sulfur dioxide liquid, sulfuric acid, sulphur and other chemical products thus.Saturated sulfurous acid solution is back in the regenerator 12.
It is recycling to turn back to absorption tower 10 after the poor desulfurizing agents of discharging in the regenerator 12 are lowered the temperature by rich or poor desulfurizing agent heat exchanger 13.
In an example of the present invention, can also purify poor desulfurizing agent, be brought into solid matter, organic substance and yin, yang ion in the desulfurizing agent to remove flue gas, make desulfurizing agent after the purification can enter system and continue to recycle.
According to the present invention, when removing sulfur dioxide in flue gas, can also the highly purified sulfur dioxide gas of by-product, this byproduct can reclaim valuable sulphur resource as the good raw material of producing sulfur dioxide liquid, sulfuric acid, sulphur and other chemical products.The present invention also can not exist byproduct to be difficult to utilize again in addition, and produces the problem of carbon dioxide.Therefore, the present invention has realized high efficiency, the resource of flue gas desulfurization and can meet the developing goal of national recycling economy.
Although illustrated and described embodiments of the invention, for the ordinary skill in the art, be appreciated that without departing from the principles and spirit of the present invention and can carry out multiple variation, modification, replacement and modification that scope of the present invention is by claims and be equal to and limit to these embodiment.
Claims (10)
1. an absorption tower is characterized in that, comprising:
Housing;
Be located at the smoke inlet of lower housing portion;
Poor desulfurizing agent inlet, described poor desulfurizing agent inlet are provided with housing top being fed in the housing at the poor desulfurizing agent that predetermined temperature absorbs sulfur dioxide and parse sulfur dioxide more than predetermined temperature;
Be located at case top, be used to discharge the clean exhanst gas outlet of removing the clean flue gas behind the sulfur dioxide;
Be located at housing bottom, be used to discharge the rich desulfurizing agent outlet of the rich desulfurizing agent that absorbed sulfur dioxide;
Liquid distribution trough, described liquid distribution trough are arranged in the housing and the inlet of liquid distribution trough links to each other with poor desulfurizing agent inlet; With
Packing layer, described packing layer are arranged between poor desulfurizing agent inlet and the smoke inlet.
2. absorption tower as claimed in claim 1 is characterized in that, further comprises demister, and described demister is arranged in the housing and between clean exhanst gas outlet and poor desulfurizing agent enter the mouth.
3. absorption tower as claimed in claim 2 is characterized in that described demister comprises first and second demisters, and wherein first demister is positioned at second demister top and spaced apart preset distance.
4. absorption tower as claimed in claim 2 is characterized in that, described demister is deflection plate demister or mesh mist eliminator.
5. absorption tower as claimed in claim 1 is characterized in that described packing layer is made of metallurgic orifice corrugated packing.
6. absorption tower as claimed in claim 1 is characterized in that, silk screen or ring that described packing layer is made by stainless steel constitute.
7. absorption tower as claimed in claim 1 is characterized in that the upper and lower of described housing is respectively equipped with the absorption tower manhole.
8. absorption tower as claimed in claim 1 is characterized in that, is provided with the absorbing tower liquid-level meter on described housing below smoke inlet.
9. absorption tower as claimed in claim 1 is characterized in that, is provided with the absorption tower thermo detector on described housing below smoke inlet.
10. absorption tower as claimed in claim 1 is characterized in that, is provided with the bearing that is used for supporting body in the bottom of described housing.
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| CN200910244120A CN101837226A (en) | 2009-12-29 | 2009-12-29 | Absorbing tower |
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| CN200910244120A CN101837226A (en) | 2009-12-29 | 2009-12-29 | Absorbing tower |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102059039A (en) * | 2010-12-03 | 2011-05-18 | 中国瑞林工程技术有限公司 | Fume purification equipment and preparation method of sulfuric acid |
| CN102266708A (en) * | 2011-07-15 | 2011-12-07 | 攀钢集团攀枝花钢钒有限公司 | Flue gas desulfurization absorption process |
| CN103230737A (en) * | 2013-05-13 | 2013-08-07 | 达州军华油田工程服务有限公司 | Device and process for performing purification treatment on stinky tail gas in waste water of gas production |
| CN107899374A (en) * | 2017-12-30 | 2018-04-13 | 西安长庆科技工程有限责任公司 | A kind of desulfuration absorbing tower and sulfur method based on triazine solution |
| CN111044681A (en) * | 2019-12-20 | 2020-04-21 | 中海油天津化工研究设计院有限公司 | Normal-pressure evaluation device and method for liquid desulfurizer |
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2009
- 2009-12-29 CN CN200910244120A patent/CN101837226A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102059039A (en) * | 2010-12-03 | 2011-05-18 | 中国瑞林工程技术有限公司 | Fume purification equipment and preparation method of sulfuric acid |
| CN102266708A (en) * | 2011-07-15 | 2011-12-07 | 攀钢集团攀枝花钢钒有限公司 | Flue gas desulfurization absorption process |
| CN102266708B (en) * | 2011-07-15 | 2015-10-14 | 攀钢集团攀枝花钢钒有限公司 | A kind of flue gas desulfurization absorption process |
| CN103230737A (en) * | 2013-05-13 | 2013-08-07 | 达州军华油田工程服务有限公司 | Device and process for performing purification treatment on stinky tail gas in waste water of gas production |
| CN103230737B (en) * | 2013-05-13 | 2015-09-23 | 达州军华环保科技有限公司 | Stench device for purifying and treating tail gas and treatment process thereof in gas production waste water |
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Application publication date: 20100922 |