CN216418900U - Sulfur-containing process gas desulfurization system - Google Patents
Sulfur-containing process gas desulfurization system Download PDFInfo
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- CN216418900U CN216418900U CN202122693637.1U CN202122693637U CN216418900U CN 216418900 U CN216418900 U CN 216418900U CN 202122693637 U CN202122693637 U CN 202122693637U CN 216418900 U CN216418900 U CN 216418900U
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Abstract
The utility model discloses a sulfur-containing process gas desulfurization system, which comprises a desulfurization tower, a regeneration tower, a filter press and a washing tower, wherein the desulfurization tower is provided with a first gas phase outlet and a first liquid phase outlet, the first gas phase outlet is positioned at the top of the desulfurization tower, the first liquid phase outlet is positioned at the bottom of the desulfurization tower, the first gas phase outlet is connected with the washing tower, the first liquid phase outlet is connected with the regeneration tower, and the regeneration tower is connected with the filter press; among the above-mentioned scheme, the desulfurization gas that the desulfurizing tower produced gets into the scrubbing tower, rejects the elemental sulfur granule in the desulfurization gas through the scrubbing tower washing, has the efficient characteristics of sulphur removal, can avoid the elemental sulfur granule to enter into low reaches equipment and cause the jam.
Description
Technical Field
The utility model relates to an environmental protection equipment technical field especially relates to a contain sulphur technology gas desulfurization system.
Background
In the related technology, a desulfurizing tower is usually adopted to carry out desulfurization treatment on sulfur-containing process gas, the desulfurizing tower absorbs the sulfur-containing process gas in a mode of lower air inlet and upper spraying, the sulfur-containing process gas and the spraying liquid are subjected to absorption reaction to generate elemental sulfur particles in the atomized absorption liquid, so that the sulfur particles are inevitably carried by the desulfurizing gas discharged from the top of the desulfurizing tower, even if the desulfurizing gas discharged from the desulfurizing tower is subjected to gas-liquid separation through a gas-liquid separator, the separation effect of the gas-liquid separator is limited, and part of the sulfur particles are still brought into downstream equipment by the desulfurizing gas, so that the downstream equipment is blocked.
SUMMERY OF THE UTILITY MODEL
The utility model discloses a sulfur-containing process gas desulfurization system to solve the technical problem that sulfur particles in a desulfurization gas interlayer part cause the blockage of downstream equipment in the related art.
In order to solve the above problem, the utility model adopts the following technical scheme:
the embodiment of the utility model provides a contain sulphur technology gas desulfurization system, including desulfurizing tower, regenerator column, pressure filter and scrubbing tower. Wherein:
the desulfurizing tower is provided with a first gas phase outlet and a first liquid phase outlet, the first gas phase outlet is positioned at the top of the desulfurizing tower, the first liquid phase outlet is positioned at the bottom of the desulfurizing tower, the first gas phase outlet is connected with the water washing tower, the first liquid phase outlet is connected with the regeneration tower, and the regeneration tower is connected with the filter press.
The utility model discloses a technical scheme can reach following beneficial effect:
the embodiment of the utility model discloses contain sulphur process gas desulfurization system, contain sulphur process gas and can enter into the desulfurizing tower through first process gas entry, first spraying system sprays complex iron solution, it discharges through the first liquid phase export of bottom to spray the sulphur solution that produces, and by water conservancy diversion to the regenerator, it lets in the pressure filter after the sulphur solution subsides gradually in the regenerator, form sulphur product after the pressure filter, the first gaseous phase export of the desulfurizing gas through the top that sprays the production is discharged, and by water conservancy diversion to the scrubbing tower, the elemental sulphur granule in the desulfurizing gas is rejected through the scrubbing tower washing, the efficient characteristics of sulphur removal have, can avoid the elemental sulphur granule to enter into low reaches equipment and cause the jam.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic diagram of a sulfur-containing process gas desulfurization system according to an embodiment of the present invention;
FIG. 2 is a schematic structural view of a water washing column of the embodiment.
In the figure:
100-a desulfurizing tower, 110-a first spraying system;
200-a regeneration tower;
300-a filter press;
400-water washing tower, 410-second process gas inlet, 420-second gas phase outlet, 430-second liquid phase outlet, 440-tray, 450-gas distributor, 460-demister, 470-second spraying system, 480-reflux port, 490-filtrate port;
510-a first delivery pipe, 520-a first pump;
610-a second delivery pipe, 620-a second pump;
710-a third delivery pipe, 720-a third pump;
810-a fifth delivery pipe, 820-a fifth pump, 830-a sixth delivery pipe;
910-wind pipe, 920-fan;
1010-fourth delivery pipe, 1020-fourth pump.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.
The terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It will be appreciated that the data so used may be interchanged under appropriate circumstances such that embodiments of the application may be practiced in sequences other than those illustrated or described herein, and that the terms "first," "second," and the like are generally used herein in a generic sense and do not limit the number of terms, e.g., the first term can be one or more than one. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.
The sulfur-containing process gas desulfurization system provided by the embodiment of the present application is described in detail by referring to fig. 1 to fig. 2 through specific embodiments and application scenarios thereof.
Referring to fig. 1 to 2, an embodiment of the present application discloses a sulfur-containing process gas desulfurization system, which includes a desulfurization tower 100, a regeneration tower 200, a filter press 300, and a water washing tower 400.
The desulfurizing tower 100 is provided with a first process gas inlet, a first gas phase outlet and a first liquid phase outlet, the first gas phase outlet is positioned at the top of the desulfurizing tower 100, the first liquid phase outlet is positioned at the bottom of the desulfurizing tower 100, the first gas phase outlet is connected with the water washing tower 400, the first liquid phase outlet is connected with the regenerating tower 200, and the first process gas inlet is positioned between the top and the bottom of the desulfurizing tower 100.
The outside sulfur-containing process gas can enter the desulfurization tower 100 through the first process gas inlet, the desulfurization tower 100 is internally provided with a first spraying system 110, the first spraying system 110 is positioned above the first process gas inlet, after the sulfur-containing process gas enters the desulfurization tower 100, the first spraying system 110 sprays the sulfur-containing process gas, in the embodiment, the spraying liquid sprayed by the first spraying system 110 can be complex iron solution, the desulfurization gas generated by spraying is discharged through the first gas phase outlet at the top of the desulfurization tower 100 and guided to the water washing tower 400, elemental sulfur particles carried in the desulfurization gas are removed by water washing of the water washing tower 400, the sulfur-containing solution generated by spraying is discharged through the first liquid phase outlet at the bottom and guided to the regeneration tower 200, the sulfur-containing solution is gradually settled in the regeneration tower 200 into sulfur-containing slurry with the weight ratio of 5-15%, when the concentration of the slurry is high, the sulfur-containing slurry is introduced into the filter press 300, the sulfur product is formed after the filter pressing of a filter press 300.
The utility model discloses contain sulphur process gas desulfurization system, the desulfurization gas that desulfurizing tower 100 produced gets into washing tower 400 in, rejects the simple substance sulphur granule in the desulfurization gas through washing tower 400 washing, has the efficient characteristics of sulphur removal, can avoid the simple substance sulphur granule to enter into low reaches equipment and cause the jam.
In the embodiment of the present application, the sulfur-containing process gas is sprayed in the desulfurization tower 100 to form a sulfur-containing rich solution, and the sulfur-containing process gas desulfurization system includes a rich solution conveying system, and the rich solution conveying system is used for conveying the rich solution below the desulfurization tower 100 to the regeneration tower 200, so that the sulfur-containing rich solution generated by desulfurization settles in the regeneration tower 200.
Specifically, the rich liquid conveying system comprises a first conveying pipe 510 and a first pump 520, one end of the first conveying pipe 510 is connected with a first liquid phase outlet, the other end of the first conveying pipe 510 is connected with a liquid inlet of the regeneration tower 200, the first pump 520 is arranged on the first conveying pipe 510, and under the driving of the first pump 520, the sulfur-containing rich liquid formed by spraying in the desulfurization tower 100 is conveyed into the regeneration tower 200.
The sulfur-containing process gas desulfurization system further comprises an air supply system, wherein the air supply system is connected with the regeneration tower 200 to supply air to the regeneration tower 200 so as to oxidize ferrous ions in the sulfur-containing solution flowing into the regeneration tower 200 into ferric ions, when the sulfur-containing rich solution is settled in the regeneration tower 200, the sulfur content of the upper layer liquid is low, namely the sulfur-containing lean solution, the ferric ions in the complex ferric solution sprayed by the first spraying system 110 are reduced into the ferrous ions by hydrogen sulfide gas in the sulfur-containing process gas in the desulfurization tower 100, and when the sulfur-containing rich solution enters the regeneration tower 200, the ferrous ions are oxidized into the ferric ions and can be used for spraying the sulfur-containing process gas.
In a further technical scheme, the sulfur-containing process gas desulfurization system further comprises a barren solution reflux system, and the barren solution reflux system is used for conveying barren solution in the regeneration tower 200 to the desulfurization tower 100 so as to spray the sulfur-containing process gas.
Specifically, the lean solution backflow system comprises a second conveying pipe 610 and a second pump 620, one end of the second conveying pipe 610 is connected with the regeneration tower 200, the other end of the second conveying pipe 610 is connected with the first spraying system 110, and the second pump 620 is arranged on the second conveying pipe 610, so that the upper lean solution generated by the sedimentation of the sulfur-containing rich solution can be conveyed into the desulfurization tower 100 through the second conveying pipe 610 and used for spraying the sulfur-containing process gas, and the lean solution backflow system can reduce the consumption of the spraying solution and has the advantages of energy conservation and environmental protection.
The regeneration tower 200 is connected with a drug supply system, the drug supply system is used for supplying drugs such as chelating agents and corrosion inhibitors to the regeneration tower 200, specifically, the drug supply system comprises a fourth delivery pipe 1010 and a fourth pump 1020, one end of the fourth delivery pipe 1010 is connected with a drug storage device, the other end of the fourth delivery pipe 1010 is connected with the regeneration tower 200, the fourth pump 1020 is arranged on the fourth delivery pipe 1010, and when the fourth pump 1020 is started, the fourth delivery pipe 1010 can deliver the drugs in the drug storage device to the regeneration tower 200.
In the embodiment of the application, the bottom of regenerator 200 has the portion of subsiding, and the portion of subsiding is the infundibulate, and sulphur is in the bottom enrichment of regenerator 200 under the action of gravity, and the portion of subsiding of infundibulate is favorable to the sulphur to subside, avoids the sulphur granule to adhere to at the inner wall of regenerator 200, can avoid regenerator 200 to take place to block up when excreting the thick liquid water.
In a further technical scheme, the air pipe 910 is connected with a purging ring pipe, the purging ring pipe is located in the settling part, a plurality of third nozzles are distributed on the purging ring pipe, the spraying direction of the third nozzles faces the inner wall of the settling part, and the purging ring pipe can periodically purge the inner wall of the settling part so as to prevent sulfur from adhering to the inner wall of the settling part.
In the embodiment of the present application, the sulfur-containing process gas desulfurization system further includes a first slurry conveying system, and the first slurry conveying system is configured to convey the slurry of the regeneration tower 200 to the filter press 300 for filter pressing to form a sulfur product.
Specifically, the first slurry conveying system comprises a third conveying pipe 710 and a third pump 720, one end of the third conveying pipe 710 is connected with the bottom of the settling part, the other end of the third conveying pipe 710 is connected with the filter press 300, the third pump 720 is arranged on the third conveying pipe 710, and under the driving of the third pump 720, the sulfur-containing slurry in the regeneration tower 200 can be conveyed to the filter press 300 through the third conveying pipe 710 and is subjected to filter pressing to form a sulfur product.
The water washing tower 400 has a second process gas inlet 410, a second gas phase outlet 420 and a second liquid phase outlet 430, the desulfurization tower 100 is connected to the second process gas inlet 410, the second gas phase outlet 420 is disposed at the top of the water washing tower 400, and the second liquid phase outlet 430 is disposed at the bottom of the water washing tower 400.
In the water scrubber 400, a tray 440, a gas distributor 450, a demister 460 and a second spray system 470 are provided, and the tray 440, the gas distributor 450 and the demister 460 are sequentially arranged in a first direction, which is a direction from the bottom of the water scrubber 400 toward the top of the water scrubber 400, and the second spray system 470 is used for spraying the demister 460.
In the desulfurized gas got into scrubbing tower 400 through second process gas entry 410, second spraying system 470 sprayed the rinsing liquid, in this application embodiment, the rinsing liquid can be desalted water, the scrubbing liquid full contact in desulfurized gas and the scrubbing tower 400, gaseous phase and liquid phase full contact mass transfer at tray 440 to the tiny sulphur granule that smugglies secretly with the desulfurized gas is got rid of, and the purified gas after the purification is discharged through second gas phase export 420, and the sulphur water scrubbing liquid that produces is discharged at second liquid phase export 430.
In a further technical scheme, a gap is formed between the trays 440 and the inner wall of the water scrubber 400, the number of the trays 440 is at least two, in a first direction, two adjacent trays 440 are distributed in a staggered manner to form a continuous bent channel for the sulfur-containing process gas to pass through, so that the gas phase and the liquid phase are in full contact mass transfer in the trays 440 or the circuitous channel, and the first direction is the direction from the bottom of the water scrubber 400 to the top of the water scrubber 400.
Referring to fig. 2, the number of the trays 440 may be four, and thus the desulfurization gas introduced into the water scrubber 400 may detour up in the water scrubber 400, so as to be sufficiently contacted with the water scrubber sprayed by the second spraying system 470 or the returned water scrubber, thereby ensuring the desulfurization efficiency of the water scrubber 400.
In the embodiment of the present application, the demister 460 can be a wire mesh demister, and the demister is used for separating liquid drops entrained by gas in the water scrubber 400, so as to reduce the water content and ensure the mass transfer efficiency of the tray 440.
The demister 460 is easily attached with elemental sulfur particles after long-time operation, thereby affecting the defoaming efficiency of the demister. Based on this situation, the second spraying system 470 may include two second spraying assemblies, the second spraying assemblies include second spraying pipes and second spray heads distributed on the second spraying pipes, one of the second spraying assemblies is located above the demister 460 and sprays the washing liquid towards the demister 460, and the other second spraying assembly is located below the demister 460 and sprays the washing liquid towards the demister, so that the upper side and the lower side of the demister 460 are simultaneously washed by the washing liquid, the elemental sulfur particles attached to the demister 460 can be effectively removed, and the use effect of the demister 460 is ensured.
The sulfur-containing process gas desulfurization system can further comprise a water washing circulation system, the water washing circulation system comprises a fifth conveying pipe 810 and a fifth pump 820, one end of the fifth conveying pipe 810 is connected with the second liquid phase outlet 430, the other end of the fifth conveying pipe 810 is connected with the return opening 480 of the water washing tower 400, the return opening 480 is located between the gas distributor 450 and the demister 460, the fifth pump 820 is arranged on the fifth conveying pipe 810, under the driving of the fifth pump 820, the sulfur-containing water washing liquid flowing out of the second liquid phase outlet 430 can return to the return opening 480 through the fifth conveying pipe 810, and is reused for water washing the desulfurized gas entering the water washing tower 400, and under the arrangement, the consumption of the liquid can be reduced.
With the increase of the recycling times of the washing liquid, the pulp flow concentration in the washing liquid rises, and when the pulp flow concentration in the washing liquid reaches a certain concentration, the conditions of low washing efficiency and strong viscous resistance exist. In this case, the water washing circulation system further includes a sixth transfer pipe 830, one end of the sixth transfer pipe 830 is connected to the second liquid phase outlet 430, and the other end of the sixth transfer pipe 830 is connected to the filter press 300.
In a further technical solution, the fifth delivery pipe 810 and the sixth delivery pipe 830 may share the fifth pump 820, specifically, the sixth delivery pipe 830 may be connected to the fifth delivery pipe, when a water washing liquid with a high pulp concentration needs to be introduced into the filter press 300, the return port 480 may be closed, and the sixth delivery pipe 830 delivers the pulp in the water washing tower 400 to the filter press 300 for filter pressing under the driving of the fifth pump 820, so as to obtain a sulfur product.
In a further technical scheme, for reducing the consumption of desalted water in the water scrubber 400, the water scrubber 400 is further provided with a filtrate port 490, filtrate generated by the filter press 300 can flow back to the water scrubber 400 through the filtrate port 490 and can be reused for washing the desulfurized gas entering the water scrubber 400, so that the water balance problem of the sulfur-containing process gas desulfurization system is solved, and the consumption of desalted water is greatly reduced.
It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Further, it should be noted that the scope of the methods and apparatus of the embodiments of the present application is not limited to performing the functions in the order illustrated or discussed, but may include performing the functions in a substantially simultaneous manner or in a reverse order based on the functions involved, e.g., the methods described may be performed in an order different than that described, and various steps may be added, omitted, or combined. In addition, features described with reference to certain examples may be combined in other examples.
The above embodiments are only specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present invention, and all should be covered within the scope of the present invention.
Claims (10)
1. The sulfur-containing process gas desulfurization system is characterized by comprising a desulfurization tower (100), a regeneration tower (200), a filter press (300) and a water washing tower (400); wherein:
the desulfurization tower (100) is provided with a first gas phase outlet and a first liquid phase outlet, the first gas phase outlet is positioned at the top of the desulfurization tower (100), the first liquid phase outlet is positioned at the bottom of the desulfurization tower (100), the first gas phase outlet is connected with the water washing tower (400), the first liquid phase outlet is connected with the regeneration tower (200), and the regeneration tower (200) is connected with the filter press (300).
2. The system for desulfurizing a sulfur-containing process gas according to claim 1, wherein said water scrubber (400) has a second process gas inlet (410), a second gas phase outlet (420) and a second liquid phase outlet (430), said desulfurization tower (100) is connected to said second process gas inlet (410), said second gas phase outlet (420) is disposed at the top of said water scrubber (400), and said second liquid phase outlet (430) is disposed at the bottom of said water scrubber (400);
the water washing tower (400) is provided with a tray (440), a gas distributor (450), a demister (460) and a second spraying system (470), wherein the tray (440), the gas distributor (450) and the demister (460) are sequentially arranged in a first direction, the first direction is the direction from the bottom of the water washing tower (400) to the top of the water washing tower (400), and the second spraying system (470) is used for spraying the demister (460).
3. The system for desulfurization of sulfur-containing process gas according to claim 2, wherein said trays (440) are at least two in number, and wherein a gap is formed between said trays (440) and the inner wall of said water scrubber (400), and in the first direction, two adjacent trays (440) are staggered to form a continuous meandering channel for passage of sulfur-containing process gas.
4. The system for desulfurizing sulfur-containing process gas according to claim 2, further comprising a water washing circulation system, wherein the water washing circulation system comprises a fifth transport pipe (810) and a fifth pump (820), one end of the fifth transport pipe (810) is connected to the second liquid phase outlet (430), the other end of the fifth transport pipe (810) is connected to a reflux opening (480) of the water washing tower (400), the reflux opening (480) is located between the gas distributor (450) and the demister (460), and the fifth pump (820) is located in the fifth transport pipe (810).
5. The system for desulfurizing a sulfur-containing process gas according to claim 4, wherein said water scrubbing circulation system further comprises a sixth transport pipe (830), one end of said sixth transport pipe (830) is connected to said second liquid-phase outlet (430), and the other end of said sixth transport pipe (830) is connected to said filter press (300).
6. The sour process gas desulfurization system of claim 1, further comprising a rich liquor delivery system for delivering rich liquor below the desulfurization tower (100) to the regeneration tower (200) and a lean liquor reflux system for delivering lean liquor within the regeneration tower (200) to the desulfurization tower (100) for spraying the sour process gas; wherein:
the rich liquid conveying system comprises a first conveying pipe (510) and a first pump (520), one end of the first conveying pipe (510) is connected with the first liquid phase outlet, the other end of the first conveying pipe (510) is connected with the liquid inlet of the regeneration tower (200), and the first pump (520) is arranged on the first conveying pipe (510);
be provided with first spray system (110) in desulfurizing tower (100), barren liquor reflux system includes second conveyer pipe (610) and second pump (620), the one end of second conveyer pipe (610) with regenerator column (200) link to each other, the other end of second conveyer pipe (610) with first spray system (110) link to each other, second pump (620) are located second conveyer pipe (610).
7. The sulfur-containing process gas desulfurization system of claim 1, further comprising a first slurry transport system for transporting the slurry of the regeneration tower (200) to the filter press (300); wherein:
the first flow pulp conveying system comprises a third conveying pipe (710) and a third pump (720), one end of the third conveying pipe (710) is connected with the regeneration tower (200), the other end of the third conveying pipe (710) is connected with the filter press (300), and the third pump (720) is arranged on the third conveying pipe (710).
8. The sulfur-containing process gas desulfurization system of claim 1, further comprising an air supply system connected to said regeneration tower (200) to supply air to said regeneration tower (200).
9. The system for desulfurizing a sulfur-containing process gas according to claim 8, wherein said air supply system comprises an air duct (910) and a fan (920), one end of said air duct (910) is connected to said fan (920), and the other end of said air duct (910) is connected to said regeneration tower (200).
10. The sulfur-containing process gas desulfurization system of claim 1, further comprising a dosing system connected to said regeneration tower (200);
the medicine supply system comprises a fourth conveying pipe (1010) and a fourth pump (1020), one end of the fourth conveying pipe (1010) is connected with the medicine storage device, the other end of the fourth conveying pipe (1010) is connected with the regeneration tower (200), and the fourth pump (1020) is arranged on the fourth conveying pipe (1010).
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| CN202122693637.1U CN216418900U (en) | 2021-11-03 | 2021-11-03 | Sulfur-containing process gas desulfurization system |
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| CN202122693637.1U CN216418900U (en) | 2021-11-03 | 2021-11-03 | Sulfur-containing process gas desulfurization system |
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