JP2020536726A - Separation system for flue gas desulfurization equipment on ships - Google Patents

Abstract

A vessel for separating flue gas (11) from flue gas that flows in the flow direction (R) and flows out through the outlet opening of the chimney (preferably having a flow component pointing upwards in the vertical direction). A separation system for a flue gas desulfurization facility, the separation system having at least one laminate (1) extended in the longitudinal direction (L) and in the longitudinal direction (L) of the laminate (1). ) Is laterally or obliquely oriented with respect to the flow direction (R), and the laminate (1) has at least one chamber (2) with an opening (2a) extending in the longitudinal direction (L). ), And the opening (2a) is arranged on one of a plurality of surfaces of the laminated plate (L) facing the flow direction (R).

Description

The present invention relates to a separation system for flue gas desulfurization equipment on ships. This separation system, on the one hand, seeks to adapt vessels equipped with this separation system to the requirements of new emission regulations at sea. On the other hand, this separation system seeks to overcome the known problem of stack rain (significant droplet emission from wet chimneys). In addition, this separation system, taking into account the last few decades of operational experience, reduces and minimizes the fouling of the components following the droplet separator (in the direction of flue gas flow). To do.

Flue gas from diesel-burning ship engines is desulfurized according to a wet scrubber method, primarily to drain from the chimney. For this purpose, the sulfur-containing flue gas is guided through a container provided in front of the chimney when viewed in the flow direction of the flue gas. In this container, seawater (suspended solution) is sprayed on the sulfur-containing flue gas, and SO ₂ present in the flue gas is bound to the spray droplets of the suspended solution. In particular, larger spray droplets are collected by gravity by a sump located below the entrance to become drainage, which drainage can be purified in a further method step, whereas of these spray droplets Smaller spray droplets are carried with the gas stream.

One object of the present invention is to reduce the amount of droplets carried together.

Another issue of the present invention is separation efficiency, as new effective or planned emission regulations also significantly reduce solids components in flue gases, in other words, reduce fine dust. Is to improve.

Conventional technology The latest separation system for flue gas desulfurization is today installed in the upper area of the container (also called the "cleaning head") where the flue gas passage or chimney is connected in the direction of the flue gas flow. Has been done. The separation system is constantly loaded by the flue gas flowing vertically upwards. What has been found here is that this arrangement configuration is preferable for both cost and operational reasons.

The separation system also separates droplets and, in some cases, dry solids components from the flue gas stream. This separation is accomplished by the separation system in which the flue gas flow is repeatedly redirected within the separation system using flow resistors. At this time, the droplets and the dried solid matter are exposed to centrifugal force. Droplets and dry solids are unable to follow the path of the flue gas, causing the flue gas to divert and collide with flow resistors, also known as "bouncers". The droplets are thereby separated in this bouncer and thereby removed from the flue gas stream. Gravity also causes droplets and, in some cases, solid components to fall into the vessel, which again reaches the gas stream or the sump.

In the prior art, separation systems generally include units consisting of plate-like and curved transformants. In general, rigidly suspended transformants are often configured to form passages through which flue gas flows. The purpose of this configuration is, on the one hand, to produce a strong diversion of the flue gas, and on the other hand, to minimize the "blocking" of the flue gas path by the flow resistors.

These bouncers or transformants are also commonly referred to as "laminates", and the bouncers correspond to "laminate separators" or simply "laminates". Common laminates from different manufacturers differ in geometry, spacing, orientation and structural morphology (“roof”, “flat” or “horizontal” flow-through type).

Experience gained from conventional power plants is that so-called stack rain can occur when flue gas is led to the chimney after a flue gas desulfurization facility (REA: Rauchgasentschwefelungsanlage). This stack rain consists of large droplets with a large amount of solids (ash) and is acidic (has a slight acidity). This stack rain, on the one hand, is the result of droplets condensing from saturated flue gas that is cooled by the chimney along the way and condenses on the chimney wall. At the chimney wall, droplets are separated from the flue gas stream and discharged from the chimney.

To avoid this, it is known in power plants to use reheating. This reheating heats the flue gas, which evaporates the remaining droplets present in the flue gas and avoids condensation of the saturated gas.

On the other hand, stack rain is also caused by splitting from the separation system. Splitting is due to the separation system not functioning (dirt, misconfiguration or excessively high flue gas velocity), or when cleaning the laminate, water droplet splitting occurs through the separation system. It means that the droplets leave the separation system downstream because they fall.

In the case of diesel-burning ship engines, the stack rain droplets are rather acidic on the one hand due to the presence of sulfuric acid in the droplets, and on the other hand these droplets have a high solid content. Sulfuric acid is generated from the fuel process in diesel engines. Sulfur-containing diesel fuel is burned and the content of SO ₂ and low SO ₃ in the flue gas is correspondingly relatively high. The liquid is dilute sulfuric acid, which is correspondingly highly erosive and corrosive. During cleaning, the collected solids reach the liquid, which causes most of it to flow out, while a small portion of the solids is drawn in by the gas stream. Thus, these droplets, which then fly from the chimney and reach the surroundings,, on the one hand, lead to apparently visible stains on the vessel walls and surface. On the other hand, these droplets are so acidic and erosive that they also decompose and corrode the ship's paint and then the steel. The two effects are negative for the ship. Dirt acts extremely negatively and unpleasantly, especially for vessels with passenger transport. To make matters worse, the degradable and corrosive effects of dilute sulfuric acid are feared on board.

Therefore, acidic stack rain is both negative and dangerous for ships.

The tests have shown that the strength of the stack rain is highly dependent on the laminating plate cleaning cycle, and especially on the final laminating plate cleaning, especially in the direction of the flue gas flow. What we were able to confirm was that by shutting off this cleaning system, the previously fierce stack rain had subsided to the point of being completely unnoticeable.

This confirmation is also consistent with the above measurement of splitting behind the laminate. It was confirmed that during the final cleaning of the laminate in terms of flue gas flow, it splits up to 100 times the amount of liquid compared to operation without cleaning. In particular, it was also confirmed that the size of the droplets increased significantly during washing. Here, particularly large droplets are drawn by the gas stream.

That is, the effect on stack rain can be explained by the washing of the liquid volume and the size of the droplets. Small droplets that are split by the separation system in normal operation (without cleaning), or small droplets (generated by condensation in the chimney), do not fall as stack rain. This is because these droplets usually dissipate before they reach the bottom. In contrast, large droplets produced by cleaning the laminate or by condensation in the chimney are large enough to reach the bottom. These droplets descend to the bottom or back surface of the chimney, where the acidity causes corrosion and the bound solids cause dirt.

In addition, the droplets are noticeable and therefore perceived by their amount during cleaning. Individual droplets are ignored and not perceived. However, many droplets are noticeable.

Analysis of operating conditions The relationship between the laminating board cleaning process and the occurrence of stack rain has long been unknown. The occurrence of stack rain was attributed to "incomplete" separation, and attempts were made to overcome it as such. In fact, "incomplete" separation was often a partial cause of the occurrence of stack rain. This is because the droplet separation system is partially incompletely implemented or improperly operated, which causes the droplet separation system to function only partially, resulting in many emissions. Because it causes.

A significant cause of incomplete separation performance is frequent stains on the laminate. This fouling is caused by incomplete combustion of diesel oil, especially in engines. Oily components are not burned and are carried with the flue gas as oily soot or oil droplets. These can then deposit on the surface of the laminate and allow oil to adhere to it.

However, oiled laminates work very limitedly. This oil prevents the formation of a water film on the surface of the laminate. However, this water film is extremely important. This is because this water film captures and binds incoming droplets. On the other hand, when the droplet to be separated hits the oiled surface, the droplet bursts and is thrown back into the flue gas stream instead of being separated on the water film or on the surface of the laminate. .. At this time, so-called secondary spraying occurs. That is, the droplets that are just separated are thrown back into the flue gas and continue to fly.

That is, oily stains lead to the corresponding laminate no longer functioning properly. The droplets are dispersed but not separated.

An important aspect is also that many ships have very limited space for incorporating REAs. On a ship, everything is extremely crowded, all space is reserved for cargo or passengers, and the required functionality is achieved in minimal space.

Setting the Task The task of the present invention is to provide a separation system that causes separation and minimizes the collision of droplets with the surface. Another object of the present invention, on the other hand, is to provide a separation system capable of pulling out and cleaning the laminate during periodic operation. Further, preferably, the separation system is configured so that minimal space is used, the amount of stack rain is reduced, and the unavoidable amount is minimized as much as possible.

A separator (bouncer or laminate) whose action is based on the collision of droplets quickly collects oily components on the surface under given ambient conditions, in which case the flying droplets due to these oily components. The formation of a water film that absorbs water is prevented. As a result, the separation function is significantly impaired. The basic principle of a bounce-type droplet separator is that a water film is formed on the bounce surface (as already mentioned), and this water film causes the droplets to shatter and continue to fly as a fine spray during a collision. Rather, a predetermined amount of liquid in the droplets is absorbed and constrained by the water film to prevent secondary spraying as much as possible. An oiled separator cannot form this water film, which is why the separator does not work. That is, we must find an alternative solution that no longer requires a water film. In this case, when the colliding droplets are sprayed, this should preferably be done in a decompressed space, or even in a pressureless space, which causes the secondary droplets to reappear. It will return to the gas stream and will not enter.

The bouncer or laminate can preferably be easily and ideally pulled out during operation, which allows it to be replaced and / or cleaned. This cleaning can also reduce oil adhesion and preferably keep it at approximately the minimum value. Therefore, in this case, the effect of oil adhesion, which has a negative effect on separation, can also be reduced, ideally to a minimum.

The replacement of the laminate can be preferably performed during operation in order to avoid interruption time of the diesel drive unit. In this case, the laminating plate can be washed offline. At this time, preferably, the separation system is configured so that the replacement can be performed without danger to the operator during operation.

It is also an object of the present invention to keep the REA as small as possible. In this case, miniaturization means that the height of the entire facility is minimized. The structural height of the ship is limited and the chimney cannot protrude from the ship at any height. That is, the structural height required for the separation system is kept as small as possible, preferably minimized.

Finally, minimize the problem of stack rain. The generation of droplets of dilute sulfuric acid that can be associated with stack rain is the result of REA incorporation (as described above). Stack rain has three practical causes:

1. 1. Laminated Plate Failure If the laminated board no longer functions properly, more liquid will be carried to the chimney and ejected. That is, an incomplete or oiled laminate is a source of stack rain.

2. 2. Laminating Plate Cleaning Periodically laminating the laminate to remove fine ash or other solids that form a thin layer on the laminate that, on the one hand, clogs the separation system over a specified period of time and, on the other hand, further exacerbates the separation. Must be washed. However, this cleaning, in side effects, leads to a temporary large amount of liquid spouting in the form of stack rain.

3. 3. Condensation formation The pure gas generated after passing through the REA is, as is known, a saturated gas having a high temperature of, for example, 50 ° C. to 65 ° C. Condensations form on the chimney walls even in ship chimneys, which are extremely short compared to power plants. This is because the chimney wall is generally 20 ° C to 50 ° C lower than the flue gas. This condensate is exfoliated from pure gas (if a sufficient amount is formed) and ejected from the chimney in the form of stack rain.

These three types of outbreaks are associated with sulfuric acid-containing stack rain, which is reasonably corrosive. The separation system according to the invention preferably seeks to reduce all three types of production and minimize them as much as possible.

Solutions According to the Invention The above problems are at least partially solved by the separation system according to the invention. The separation system according to the present invention has at least one laminated plate extending in the longitudinal direction, and the longitudinal direction of the laminated plate is oriented laterally or diagonally with respect to the flow direction of the flue gas. By having a chamber with an opening extending in the longitudinal direction, the opening being arranged on one of a plurality of surfaces of the laminate facing the flow direction by the gas flow. At least a portion of the drawn droplets and sprayed droplets are directed directly into this chamber. Within this chamber, these droplets collide with the chamber wall, which (unlike the laminates known from the prior art) does not lead to the formation of a secondary spray that can be drawn in by the gas stream. This is because there is no gas flow in the chamber. In other words, by constructing the laminate according to the present invention, collisions are removed from the gas passage and the formation and carry-out of the secondary spray is prevented.

In order to further enhance separation performance for the purpose of avoiding or at least reducing stack rain, a preferred embodiment of this separation system has one or more modules, each module having at least one, preferably plural. It has a laminated board of.

Particularly preferred in terms of the highest possible separation performance, one or more modules are configured and arranged so that one module or a plurality of modules each defines one inflow plane facing the flow direction. If you are. In other words, the gas stream is preferably directed to the inflow surface.

Particularly preferred is an evolution of the separation system according to the invention, in which one or more modules are arranged such that the inflow surface extends laterally or diagonally with respect to the flow direction.

In a highly preferred embodiment of the separation system according to the invention, at least one laminate, unlike prior art, is incorporated in a REA container through which the flue gas flows before it flows out into the flue gas passage or chimney. It is built into the chimney instead of. This, on the other hand, requires that the structural height of the vessel be significantly lower, for example 1,000 to 2,000 mm, thereby reducing the space required for the REA and minimizing it as much as possible. Try to follow. By incorporating it into the chimney, the laminated board can be replaced during operation. This is because it is unavoidable that leaks may occur and flue gas may flow out when the laminate is replaced. This is a major problem for workers, especially when the work must be done in a closed space where the container is provided. However, by moving to the chimney, the area where work must be done for the replacement of the laminate is moved to the open area, where the work is open and often under the action of the wind. The action of the wind is that the apparent wind acting on the ship (the vector sum of the true wind and the running wind) may immediately carry away the flue gas that has flowed out, and is therefore not at all dangerous to the worker. Or at least much less dangerous. This allows the laminate to be replaced more frequently, reducing the problem of oil adhesion and residual dirt. Here, at shorter time intervals, the laminates can be removed and replaced with spare laminates (new laminates and / or washed laminates). The removed laminate can then be cleaned, for example, by mechanical and / or chemical cleaning means. This "offline cleaning" provides the following advantages: That is,
a) The main cause of stack rain is reduced or eliminated by not performing regular cleaning during operation.
b) Further, the separation function of the laminated board is remarkably improved. This is because the negative effects of oil adhesion are significantly reduced.

Further preferably, in the separation system according to the invention, at least one laminate is located near the outlet opening of the chimney. This solves the problem of condensate ejection. The condensate formed in the wet chimney is carried along with the flue gas to the separator where it is separated before the flue gas exits the chimney.

Further, the cross-sectional area of the chimney can be formed in the vicinity of the outlet to be much larger than the cross-sectional area of the chimney. This reduces the flue gas velocity, reduces the pressure drop in the separator and improves the separation performance.

Surprisingly, it turns out that laminates with the following are particularly effective in reducing or avoiding stack rain: That is, the laminated board
a) A face deformed material with regions that are preferably bent alternately by shallow angles, and b) one intermediate region each and two edge regions connected to the opposite edge of this intermediate region. At least one first longitudinal profile and second longitudinal with two edge regions, each terminated at the outer edge and (preferably) bent corresponding to the face profile. At least in the first longitudinal direction, with the directional deformed material, so that the edge region of the longitudinal deformed material is separated from the region of the surface deformed material, preferably extending in parallel, at a specific interval. The deformed material and the second longitudinal deformed material are staggered and fixed to each one region of the surface deformed material by their respective intermediate regions, and at least two edge regions of the first longitudinal deformed material are fixed. The outer edge of one of them has a specific distance from the outer edge of the edge region of the second longitudinal deformed material, thereby providing the area of the surface deformed material and the two edge regions. A chamber is formed between the two, and an opening is formed between the two outer edges of the edge region.

A special function of this chamber separator is that the droplets do not collide with the resistance in the flue gas stream, but rather fly into the chamber and only then collide with the plate in that space. This causes the secondary droplets generated by the collision to stay in the chamber and be separated there, rather than being thrown back into the flue gas stream. There is no drawn gas stream here that can further carry out the secondary droplets.

The negative function of oil adhesion is also fully removed. The adhesion of oil actually prevents the formation of a water film on the surface that can absorb the colliding droplets. As a result, a significantly large number of secondary droplets are separated. This is not important in the chamber. This is because there is no gas flow actually taken in here. The secondary droplet is either drawn by a subsequent droplet or dropped by gravity, but usually does not return to the gas stream again.

Particularly preferably, at least two longitudinally deformed members are fixed to both sides of such a laminated board.

By pre-connectting a roll separator to the head of the REA vessel, the separation system can be further improved and the wash cycle can be extended. The function of this roll separator is, on the one hand, to reduce the amount of droplets in the flue gas, and on the other hand, to capture and bind the oily constituents before they reach the actual separator. Is.

In the drawings, a separation system belonging to the prior art, an embodiment of a laminate used in the separation system according to the invention, and two examples of the separation system according to the invention are illustrated (simply briefly). There is.

It is a side sectional view of the separation system belonging to the prior art. It is a perspective view of the laminated board used in the system of FIG. It is a perspective view which shows the laminated board used in the separation system by this invention. It is a figure of the module which has a plurality of laminated plates of the type shown in FIG. It is a side sectional view of the 1st Example of the separation system by this invention. FIG. 5 is a side sectional view showing another embodiment of the separation system according to the present invention corresponding to FIG.

The separation system belonging to the prior art shown in FIG. 1 includes a container 7 through which the flue gas stream 9 passes in the flow direction R, i.e. from bottom to top. For this purpose, the container 7 has a side inlet E. The container 7 has a sump T used to receive the liquid under the side inlet E. An outlet U is provided at the deepest part of the sump T, through which the received liquid can be discharged and, in some cases, supplied to the reusing section or the cleaning section. In the container 7, the flue gas flows through the spray device 5, and the spray device 5 supplies the liquid to the flue gas in the form of a spray in order to bind SO ₂ or SO ₃ and to wash away the solid. Will be done. Here, SO ₂ or SO ₃ as well as droplets incorporating solid matter are formed. These are washed away by a droplet separator located behind the sprayer in the direction of flue gas flow. Most of these fall below the container 7 due to gravity and are collected in the sump T. However, a small portion is drawn upward with the flue gas into the chimney S connected to the container 7 and at least partially outflows through the chimney opening 10. A test port 8 is provided to accommodate or connect a corresponding measuring device or measuring sensor so that the chimney can measure, for example, the water content, the toxic substance content and the like.

Conventional techniques have known droplet separators consisting of multiple layers of separation laminates arranged side by side, for example (as outlined in FIG. 2), from flat materials. It is composed of multiple layers of bow shape. Multiple layers of laminate can be combined into multiple separation units by side walls not shown in the drawings, and together with adjacent separation units, can be combined into roof-shaped or V-shaped modules, or flat modules. It is also possible to summarize.

It has been found that the use of such laminates for cleaning the exhaust fumes of marine diesel engines can result in unwanted stack rain. This is because the droplets cannot separate on the oiled surface and can be thrown back into the gas stream as a secondary spray. In order to reduce the occurrence of stack rain, the separation system according to the present invention includes a laminated plate 1, which is provided with an opening 2a extending in the longitudinal direction L of the laminated plate. At least one chamber 2 is included. An example of such a laminated board is shown in FIG. This embodiment preferably includes a surface deformed material 14 having a plurality of regions 15 that are alternately bent by shallow angles. One intermediate region 18 and two edge regions 19 and 19'connected to the opposite edges of the intermediate region, respectively, which are terminated at the outer edges 20 and 20'and are face-shaped members, respectively. At least one first longitudinal deformed member 16 and a second longitudinal deformed member 17 having two edge regions 19 and 19'bent corresponding to the above are the edge regions 19 of the longitudinal deformed material. , 19'are displaced by their respective intermediate regions 18 into one region 15 of the surface profile 14 so that they are separated by a spacing D from the parallel extending regions 15 of the profile 14. It is fixed. At least one outer edge 20'of the two edge regions 19 of the first longitudinal deformed member 16 is spaced A from the outer edge 20 of the edge region 19 of the second longitudinal deformed member 17. The chamber 2 is formed between the region 15 of the surface deformed member 14 and the two edge regions 19', 19, and the two outer edges of the edge regions 19', 19. An opening 2a is formed between the portions 20'and 20. Two longitudinally deformed members 16 and 17, respectively, are fixed on both sides of the surface deformed member 14. It has been found that the separator with the laminated board thus formed significantly reduces the formation of stack rain. This means that at least a portion of the droplets does not bounce off the outer surface to form a secondary spray, but reaches the chamber 2 and, in some cases, occurs during the bounce of the walls of the chamber. However, this can be explained by not reaching the flue gas stream 9.

As shown in FIG. 4, by preferably arranging them in parallel with each other and more preferably at equal intervals, a plurality of laminated plates 1 can be combined into one module, and preferably this module is used. Allows this module to be placed in the separation system so as to form an inflow surface F that extends laterally or diagonally with respect to the flow direction R.

In the first embodiment of the separation system 100 according to the present invention, which is illustrated in FIG. 5, unlike the prior art, the droplet separator 6 is not arranged in the container 7, but in the chimney S itself. Moreover, in this embodiment, it is arranged in the vicinity of the outlet opening 10. The spray device 5 is provided near the upper end of the container 7. The module 13 including the plurality of laminated plates 1 shown in FIG. 4 is arranged flat so that the inflow surface F extends laterally with respect to the flow direction R of the flue gas.

A replaceable housing 21 is provided to secure the module 13 to the chimney S, which is configured to allow the module 13 to be replaced during operation of the marine diesel engine. Such replaceability during operation is particularly feasible because the module is located in the chimney, which in some cases produces gas in the area of the replaceable container 21 during the replacement process. However, it reaches the outside directly.

In the second embodiment of the separation system 200 according to the present invention shown in FIG. 6, unlike the first embodiment of the separation system 100 according to the present invention, the module 13 has this (with respect to the flow direction of the flue gas), respectively. It is arranged to form a V-shaped or inverted V-shaped (“roofed”) shape with adjacent modules. As a result, the inflow surface F of the module 13 extends diagonally with respect to the flow direction R of the flue gas. Further, a multi-layer roll separator 22 is arranged in the upper region of the container 7, also referred to as the “absorber head”. The function of the roll separator 22 is, on the one hand, to reduce the amount of droplets in the flue gas, and on the other hand, to capture and bind the oily component before it reaches the module 13. .. By using this roll type separator, the separation performance of the separation system can be further improved and the cleaning cycle can be extended. In other respects, the second embodiment of the separation system 200 substantially corresponds to the first embodiment, so refer to the description thereof.

100, 200 Separation System 1 Laminated Plate 2 Chamber 2a Chamber Opening 3 Chimney Outlet 4 Replaceable 5 Sprayer 6 Droplet Separator 7 Container 8 Test Port 9 Flue Gas Flow 10 Chimney Outlet 11 Droplet 12 Opening 13 Module 14 Surface deformed material 15 Surface deformed material area 16 1st longitudinal deformed material 17 2nd longitudinal deformed material 18 Intermediate area 19, 19'edge area 20, 20' edge 21 interchangeable container 22 Roll type separator A Interval D Interval E Inlet F Inflow surface L Longitudinal direction of separator R Flue gas flow direction S Chimney T Samp U Exit

Claims (10)

Separates droplets (11) from flue gas that flows in the flow direction (R) and flows out through the outlet opening (10) of the chimney (S) (preferably having a flow component pointing upwards in the vertical direction). It is a separation system (100, 200) of the flue gas desulfurization equipment of the ship for the purpose of
It has at least one laminated plate (1) extended in the longitudinal direction (L), and the longitudinal direction (L) of the laminated plate (1) is lateral or oblique with respect to the flow direction (R). Oriented and
The laminate (1) has at least one chamber (2) with an opening (2a) extending in the longitudinal direction (L).
Separation system for flue gas desulfurization equipment on ships, each of which has the opening (2a) disposed on one of a plurality of surfaces of the laminated board (L) facing the flow direction (R). (100, 200). The first aspect of the invention, wherein the separation system has one or more modules (13), and one or more of the modules (13) have at least one laminate (1). Separation system. The separation system according to claim 2, wherein one or more modules (13) define one inflow surface (F) each facing the flow direction. A claim, wherein the one or more modules (13) are arranged such that the inflow surface (F) extends laterally or diagonally with respect to the flow direction (R). 3 Separation system. The separation system according to any one of claims 1 to 4, wherein at least one of the laminated plates (1) is arranged in the chimney. At least one laminated plate (1) is arranged in the vicinity of the outlet opening (10) of the chimney, and the outlet opening preferably has a cross-sectional area larger than the cross-sectional area of the chimney. The separation system according to claim 5, characterized in that it has. The separation system according to any one of claims 1 to 6, wherein at least one, preferably all the laminated plates (1), are arranged interchangeably from the outside. The laminated board (1) is
a) A face deformed material (14) with regions (15) bent alternately by preferably shallow angles, and b) one intermediate region (18) each and an opposite edge of the intermediate region. Two connected edge regions (19, 19'), each terminated at the outer edge (20, 20') and (preferably) bent corresponding to the surface profile. It has at least one first longitudinal variant (16) and a second longitudinal variant (17) with two edge regions (19, 19').
The edge regions (19, 19') of the longitudinal deformed material (16, 17) are spaced from the surface deformed material (14), preferably extending in parallel. At least the first longitudinal deformed material (16) and the second longitudinal deformed material (17) are separated by the intermediate region (18) of each of the first longitudinal deformed material (16) so as to be separated by the surface deformed material (18). Each of (14) is shifted and fixed in one of the above-mentioned regions (15).
At least one of the outer edge regions (20') of the two edge regions (19') of the first longitudinal deformed material (16) is the said of the second longitudinal deformed material (17). There is an interval (A) with respect to the outer edge portion (20) of the edge region (19), whereby the region (15) of the surface deformed material (14) and the two edge regions ( A chamber (2) is formed between the 19 and 19') and the opening (2a) between the two outer edges (20, 20') of the edge region (19, 19'). ) Is formed, the separation system according to any one of claims 1 to 7. The separation system according to claim 8, wherein at least two longitudinally deformed materials (16, 17) are fixed to both sides of the surface deformed material (14), respectively. The flue gas desulfurization facility has a container (7) pre-connected to the chimney (S) as viewed in the flow direction (R) of the flue gas.
The separation system according to any one of claims 1 to 8, wherein the container is preferably provided with a multi-layer roll type separator (22).

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