KR102161753B1 - Scrubber - Google Patents

Abstract

Start the scrubber.
A scrubber according to an embodiment of the present invention includes a scrubber body having a processing space for treating exhaust gas flowing from an engine or a boiler; A treatment liquid supply unit for supplying a treatment liquid to at least a portion of the treatment space through which the exhaust gas flows to treat the exhaust gas; And according to the load of the engine or boiler connected to the scrubber body, or the number of engines or boilers operated among a plurality of engines or boilers connected to the scrubber body, adjusting the size of a portion of the treatment space where exhaust gas is treated. A control unit; It may include.

Description

Scrubber {SCRUBBER}

The present invention relates to a scrubber.

The scrubber functions to treat the exhaust gas, such as purifying or cooling the exhaust gas emitted from the engine or boiler.

In order to purify or cool the exhaust gas, the scrubber is connected to an exhaust pipe through which exhaust gas discharged from the engine or boiler flows. In addition, in the scrubber, a treatment liquid such as seawater is supplied to the exhaust gas flowing into the scrubber through an exhaust pipe, so that the treatment liquid absorbs sulfur oxides or dust from the exhaust gas to purify the exhaust gas, or the treatment liquid cools the exhaust gas. So that the exhaust gas is treated by the treatment liquid.

Such a scrubber may be connected to a single engine or boiler to process exhaust gas, or may be connected to a plurality of engines or boilers to process exhaust gas.

Conventionally, regardless of the load of an engine or boiler, or the number of engines or boilers operated among a plurality of engines or boilers connected to the scrubber, all portions of the scrubber have been used to treat exhaust gas.

In addition, the scrubber was supplied with a constant treatment liquid regardless of the load of the engine or boiler or the number of engines or boilers operated among a plurality of engines or boilers connected to the scrubber.

For example, in the conventional scrubber, when the load of the engine or boiler is the maximum load, and all of the plurality of engines or boilers connected to the scrubber are operated, it is operated in a required state.

Accordingly, when the load of the engine or boiler is low, or when only a few of the plurality of engines or boilers connected to the scrubber are operated, the scrubber is operated inefficiently.

That is, all parts of the scrubber are unnecessarily used for the treatment of exhaust gas, and the life of the scrubber is shortened, so that part or all of the scrubber has to be replaced relatively frequently. In addition, in order to supply more than necessary treatment liquid to the scrubber, more energy than necessary was consumed by a pump or the like for supplying the treatment liquid.

The present invention has been made by recognizing at least one of the demands or problems occurring in the prior art as described above.

An aspect of the object of the present invention is to extend the life of the scrubber to reduce the replacement cost of the scrubber and to reduce the energy consumption of the scrubber.

Another aspect of the object of the present invention is to allow the scrubber to operate efficiently.

Another aspect of the present invention is to operate the scrubber according to the load of the engine or boiler connected to the scrubber or the number of engines or boilers operated among a plurality of engines or boilers connected to the scrubber.

A scrubber related to an embodiment for realizing at least one of the above tasks may include the following features.

A scrubber according to an embodiment of the present invention includes a scrubber body having a processing space for processing exhaust gas flowing from an engine or a boiler; A treatment liquid supply unit for supplying a treatment liquid to at least a portion of the treatment space through which the exhaust gas flows to treat the exhaust gas; And according to the load of the engine or boiler connected to the scrubber body, or the number of engines or boilers operated among a plurality of engines or boilers connected to the scrubber body, adjusting the size of a portion of the treatment space where exhaust gas is treated. A control unit; It may include.

In this case, the scrubber body may be provided with a partition wall dividing at least a part of the processing space into a plurality of partial spaces.

In addition, the partition wall may be provided with an opening and closing unit for opening and closing the opening formed in the partition wall.

In addition, an opening/closing unit is provided between the partition wall and the scrubber body or between the partition walls to open and close the partition wall and the scrubber body or between the partition walls.

In addition, the control unit, by opening and closing the opening formed in the partition wall or between the partition wall and the scrubber body or between the partition wall by the opening and closing unit, the number of partial spaces through which exhaust gas flows for treatment among the plurality of partial spaces. Can be adjusted.

In addition, the treatment liquid supply unit may include a plurality of supply pipes extending into each of the plurality of partial spaces through the scrubber body and supplying the treatment liquid to each of the plurality of partial spaces.

In addition, the treatment liquid supply unit may further include a pump connected to a treatment liquid supply source, and a flow pipe connected to the pump and extending to the scrubber body, respectively, to which the plurality of supply pipes are connected.

In addition, the control unit may control the pump and a supply valve provided in at least a portion of the plurality of supply pipes so that the processing liquid is supplied to a partial space through which exhaust gas flows for treatment among the plurality of partial spaces. .

In addition, the scrubber body may be provided with a gas inlet through which exhaust gas to be treated is introduced and a gas outlet through which the treated exhaust gas is discharged to the outside by being connected to the engine or boiler.

Further, a gas analysis unit for analyzing exhaust gas is provided at the gas outlet, and the control unit may adjust an amount of the processing liquid supplied to the partial space according to the analysis result of the gas analysis unit.

In addition, the treatment liquid may be processed by absorbing sulfur oxides or dust from the exhaust gas to purify the exhaust gas or cooling the exhaust gas.

In addition, the treatment liquid may be seawater.

As described above, according to the exemplary embodiment of the present invention, the scrubber may be operated according to the load of the engine or boiler connected to the scrubber or the number of engines or boilers operated among a plurality of engines or boilers connected to the scrubber.

Further, according to the embodiment of the present invention, the scrubber can be operated efficiently.

Further, according to an embodiment of the present invention, the life of the scrubber is extended, so that the replacement cost of the scrubber is reduced, and the energy consumption of the scrubber can be reduced.

1 is a view showing an embodiment of a scrubber according to the present invention.
2 and 3 are views showing the operation of an embodiment of the scrubber according to the present invention.
4 is a view showing another embodiment of the scrubber according to the present invention.

In order to help understand the features of the present invention as described above, a scrubber related to an embodiment of the present invention will be described in more detail below.

Hereinafter, the described embodiments will be described based on the most suitable embodiments for understanding the technical features of the present invention, and the technical features of the present invention are not limited by the described embodiments, but the following description It is to illustrate that the present invention can be implemented as in the following embodiments. Accordingly, the present invention can be variously modified within the technical scope of the present invention through the embodiments described below, and such modified embodiments will fall within the technical scope of the present invention. In addition, in the reference numerals in the accompanying drawings in order to aid in understanding of the embodiments described below, related elements among the elements that perform the same function in each embodiment are indicated by numbers on the same or extension lines.

Scrubber Example

Hereinafter, an embodiment of the scrubber according to the present invention will be described with reference to FIGS. 1 to 3.

1 is a view showing an embodiment of the scrubber according to the present invention, Figures 2 and 3 are views showing the operation of an embodiment of the scrubber according to the present invention.

An embodiment of the scrubber according to the present invention may include a scrubber body 200, a treatment liquid supply unit 300, and a control unit 400.

A processing space ST may be formed in the scrubber body 200. In the treatment space ST, exhaust gas introduced from an engine (not shown) or a boiler (not shown) as shown in FIGS. 2 and 3 may be treated.

In the processing space ST, for example, the exhaust gas may be processed by supplying a processing liquid to the exhaust gas flowing through the processing space ST. The treatment liquid can be treated by absorbing sulfur oxides or dust from the exhaust gas to purify the exhaust gas or cooling the exhaust gas. The treatment liquid supplied to the treatment space ST may be seawater, for example, if the scrubber 100 is provided in a ship (not shown). However, the treatment liquid supplied to the treatment space ST is not particularly limited, and any known treatment liquid may be used as long as it is supplied to the treatment space ST to treat the exhaust gas.

In addition, a method of treating exhaust gas in the processing space ST is not particularly limited, and any method may be used as long as it is a method of treating exhaust gas.

The scrubber body 200 may be provided with a gas inlet 210 and a gas outlet 220.

The gas inlet 210 may be connected to an engine or a boiler. The gas inlet 210 may be connected to, for example, an exhaust pipe (not shown) connected to an engine or boiler and connected to an engine or boiler. Accordingly, the exhaust gas generated from the engine or boiler may be introduced into the processing space ST through the gas inlet 210 as shown in FIGS. 2 and 3.

A single engine or boiler may be connected to the gas inlet 210, but a plurality of engines or boilers may be connected.

The gas inlet 210 may be provided at a lower side of the scrubber body 200 as shown in FIG. 1. However, the portion of the scrubber body 200 in which the gas inlet 210 is provided is not particularly limited, and if a portion of the scrubber body 200 is connected to the engine or boiler and into which the exhaust gas generated from the engine or boiler can be introduced, the scrubber body 200 It can be any part.

Through the gas outlet 220, the exhaust gas processed in the processing space ST may be discharged to the outside. As shown in FIG. 1, the lower portion of the gas outlet 220 may be provided in the scrubber body 200 to be connected to the processing space ST, and the upper portion of the gas outlet 220 may be opened. As a result, the exhaust gas processed in the processing space ST as shown in FIGS. 2 and 3 flows into the gas outlet 220 through the lower portion of the gas outlet 220 and then opens the gas outlet 220. It can be discharged to the outside through the top.

The gas outlet 220 may be provided on the scrubber body 200 as shown in FIG. 1. However, the portion of the scrubber body 200 in which the gas outlet 220 is provided is not particularly limited, and any portion of the scrubber body 200 as long as the exhaust gas processed in the processing space ST can be discharged to the outside. Can also be.

A gas analysis unit 221 may be provided at the gas outlet 220. The gas analysis unit 221 may analyze the exhaust gas discharged to the outside through the gas outlet 220, for example, analyze components of the exhaust gas. The gas analysis unit 221 is not particularly limited, and any known one may be used as long as it is provided in the gas outlet 220 and capable of analyzing the exhaust gas discharged to the outside through the gas outlet 220.

The scrubber body 200 may be provided with a partition wall 230. The partition wall 230 may divide at least a portion of the processing space ST of the scrubber body 200 into a plurality of partial spaces S1 and S2. For example, the scrubber body 200 is provided with one partition wall 230 as shown in FIG. 1, and the processing space ST is formed by the partition wall 230 to form a first partial space S1 and a second partial space. It can be divided into S2). However, the scrubber body 200 may be provided with a plurality of partition walls 230 so that the processing space ST may be divided into a plurality of partial spaces S1 and S2.

An opening 231 may be formed in the partition wall 230. In addition, an opening/closing unit 240 for opening and closing the opening 231 may be provided on the partition wall 230. The opening/closing unit 240 may include an opening/closing member 241 for opening and closing at least a part of the opening 231 of the partition wall 230.

For example, as illustrated in FIG. 1, the opening/closing unit 240 may include two opening/closing members 241 rotatably provided on the partition wall 230 to open and close the opening 231. However, the number of opening/closing members 241 included in the opening/closing unit 240 and the configuration in which the opening/closing member 241 is provided on the partition wall 230 are not particularly limited, and the opening portion 231 of the partition wall 230 is opened and closed. Any number of possible configurations and configurations are possible, such as being provided to be slid on the partition wall 230.

The treatment liquid supply unit 300 may supply the treatment liquid to at least a part of the treatment space ST of the scrubber body 200 through which the exhaust gas flows to treat the exhaust gas.

The treatment liquid supply unit 300 may include a pump 310, a flow pipe 320, and a plurality of supply pipes 330.

The pump 310 may be connected to a treatment liquid supply source (not shown), for example, if the treatment liquid is seawater, by a pipe. The flow pipe 320 is connected to the pump 310 and may extend to the scrubber body 200. Each of the plurality of supply pipes 330 may be connected to the flow pipe 320. In addition, the plurality of supply pipes 330 may pass through the scrubber body 200 and extend to each of the plurality of partial spaces S1 and S2 of the processing space ST of the scrubber body 200.

In this configuration, when the pump 310 is driven, the treatment liquid from the treatment liquid supply source may flow to each of the plurality of supply pipes 330 through the pump 310 and the flow pipe 320. In addition, the treatment liquid supplied to each of the plurality of supply pipes 330 may be supplied to each of the plurality of partial spaces S1 and S2 of the treatment space ST of the scrubber body 200 through the plurality of supply pipes 330. . Accordingly, the exhaust gas flowing through each of the plurality of partial spaces S1 and S2 of the treatment space ST of the scrubber body 200 may be treated by the treatment liquid.

The supply pipe 330 may be provided with a spray nozzle (not shown). Accordingly, the treatment liquid may be sprayed and supplied to each of the plurality of partial spaces S1 and S2 of the treatment space ST of the scrubber body 200.

A supply valve 331 may be provided in at least a portion of the plurality of supply pipes 330. By the supply valve 331, the supply pipe 330 may be opened or closed. And, thereby, it is possible to adjust the partial spaces S1 and S2 to which the supply liquid is supplied among the plurality of partial spaces S1 and S2 of the processing space ST of the scrubber body 200.

For example, as shown in Fig. 1, the supply valve 331 to the supply pipe 330 extending to the second partial space S2 among the two supply pipes 330 respectively extending to the first and second partial spaces S1 and S2. ) May be provided. And, as shown in FIG. 2, when the exhaust gas flows only in the first partial space S1, the supply valve 331 is closed so that the treatment liquid is supplied only to the first partial space S1. In addition, as shown in Fig. 3, when the exhaust gas flows through both the first and second sub-spaces (S1 and S2), the supply valve 331 is opened to treat both the first and second sub-spaces (S1 and S2). You can also allow liquid to be supplied.

However, in addition, supply valves 331 are provided in all of the plurality of supply pipes 330, and among the plurality of partial spaces S1 and S2 of the treatment space ST of the scrubber body 200, the partial space S1 to which the supply liquid is supplied. ,S2) can also be adjusted.

The control unit 400, according to the load of the scrubber body 200, for example, the engine or boiler connected to the gas inlet 210 of the scrubber body 200, the exhaust gas in the processing space (ST) of the scrubber body 200 You can adjust the size of the processed part.

To this end, the engine or boiler is provided with a load detection sensor (not shown) capable of detecting the load of the engine or boiler, and the control unit 400 is electrically connected to, for example, a load detection sensor, and the load of the engine or boiler Can be detected. However, the configuration in which the controller 400 detects the load of the engine or boiler is not particularly limited, and any known configuration may be used.

In addition, the control unit 400, when a plurality of engines or boilers are connected to the scrubber body 200, the exhaust gas in the treatment space ST of the scrubber body 200 is processed according to the number of engines or boilers operated. You can adjust the size of the part.

In this way, the load of the engine or boiler connected to the scrubber 100, or among a plurality of engines or boilers connected to the scrubber 100, among the treatment spaces ST of the scrubber body 200 according to the number of engines or boilers operated Since the size of the part where the exhaust gas is treated can be adjusted, the scrubber 100 can be operated efficiently.

In addition, since the life of the scrubber 100 is extended, replacement cost of the scrubber 100 may be reduced, and energy consumption of the scrubber 100 may be reduced.

The control unit 400 opens and closes the opening 231 of the partition wall 230 of the scrubber body 200 by the opening/closing unit 240, so that a plurality of partial spaces S1 of the processing space ST of the scrubber body 200 The number of partial spaces (S1, S2) through which exhaust gas flows for treatment among ,S2) can be adjusted.

For example, when the load of the engine or boiler connected to the scrubber body 200 is less than the maximum load, or when only some of the plurality of engines or boilers connected to the scrubber body 200 are operated, the partition wall 230 The opening 231 may be closed by the opening/closing unit 240.

Accordingly, the exhaust gas introduced into the gas inlet 210 of the scrubber body 200 can flow only the first partial space S1 of the treatment space ST of the scrubber body 200 as shown in FIG. 2. have.

In addition, when the load of the engine or boiler connected to the scrubber body 200 is the maximum load or when all of the plurality of engines or boilers connected to the scrubber body 200 are operated, the opening of the partition wall 230 ( 231 can be opened by the opening and closing unit 240.

Accordingly, the exhaust gas flowing into the gas inlet 210 of the scrubber body 200 as shown in FIG. 3 is the first and second partial spaces S1 and S2 of the processing space ST of the scrubber body 200. Everyone can flow.

The control unit 400 controls the pump 310 and the supply valve 331 provided in at least a portion of the plurality of supply pipes 330, and controls a plurality of partial spaces S1 of the processing space ST of the scrubber body 200. The treatment liquid may be supplied to the partial spaces S1 and S2 through which the exhaust gas flows for the treatment of ,S2).

For example, when the load of the engine or boiler connected to the scrubber body 200 is less than the maximum load, or when only some of the plurality of engines or boilers connected to the scrubber body 200 are operated, the control unit 400 is used as described above. The exhaust gas may flow only in the first partial space S1 of the processing space ST of 200.

In this case, the control unit 400 drives the pump 310 with the supply valve 331 closed, and the first and second portions of the processing space ST of the scrubber body 200 as shown in FIG. 2 Of the spaces S1 and S2, the treatment liquid may be supplied only to the first partial space S1 in which the exhaust gas flows.

In addition, when the load of the engine or boiler connected to the scrubber body 200 is the maximum, or when all of the plurality of engines or boilers connected to the scrubber body 200 are operated, the controller 400 is the scrubber body 200 as described above. It is possible to allow the exhaust gas to flow in both the first and second partial spaces S1 and S2 of the processing space ST of.

And, in this case, the control unit 400 drives the pump 310 with the supply valve 331 open, and as shown in FIG. 3, the treatment space ST of the scrubber body 200 in which the exhaust gas flows. ), the treatment liquid can be supplied to both the first and second partial spaces S1 and S2.

On the other hand, the control unit 400 according to the analysis result of the exhaust gas discharged through the gas outlet 220 by the gas analysis unit 221 provided in the gas outlet 220 of the scrubber body 200, the scrubber body ( The amount of the treatment liquid supplied to the partial spaces S1 and S2 of the treatment space ST of 200) may be adjusted.

For example, the exhaust gas processed from the treatment liquid while flowing through some of the plurality of partial spaces S1 and S2 of the treatment space ST of the scrubber body 200 or all of the plurality of partial spaces S1 and S2 is a gas outlet ( As it is discharged to the outside through 220), the components and the like may be analyzed by the gas analysis unit 221.

And, when the result of the processed exhaust gas analyzed by the gas analysis unit 221 does not meet a predetermined standard, for example, a specific component such as sulfur oxide among the components of the treated exhaust gas is contained in the exhaust gas more than the reference amount. In this case, the control unit 400 is an amount of the treatment liquid supplied to all of the plurality of sub-spaces S1 and S2 of the treatment space ST or all of the plurality of sub-spaces S1 and S2, respectively, in which the exhaust gas is treated. Can increase.

Scrubber Different Example

Hereinafter, another embodiment of the scrubber according to the present invention will be described with reference to FIG. 4.

4 is a view showing another embodiment of the scrubber according to the present invention.

Here, another embodiment of the scrubber according to the present invention is different from the embodiment of the scrubber according to the present invention described with reference to FIGS. 1 to 3 in the position where the opening and closing unit 240 is provided.

Therefore, hereinafter, the differences will be mainly described, and the remaining configurations may be replaced with those described with reference to FIGS. 1 to 3.

In another embodiment of the scrubber according to the present invention, the opening/closing unit 240 is between the partition wall 230 and the scrubber body 200, or if a plurality of partition walls 230 are provided, as shown in FIG. Can be provided in.

Accordingly, the opening/closing unit 240 may open and close between the partition wall 230 and the scrubber body 200 or between the partition wall 230.

In this case, the partition wall 230 may be provided at a predetermined distance from the bottom of the scrubber body 200 provided with the gas inlet 210 as shown in FIG. 4.

The opening/closing unit 240 may include an opening/closing member 241 that opens and closes at least a portion between the partition wall 230 and the scrubber body 200 or between the partition wall 230.

For example, as shown in Figure 4, the opening and closing unit 240 is rotatably provided between the partition wall 230 and the scrubber body 200 or between the partition wall 230, and between the partition wall 230 and the scrubber body 200 Alternatively, it may include two opening and closing members 241 that open and close between the partition walls 230. However, the number of the opening and closing members 241 included in the opening and closing unit 240 and the configuration in which the opening and closing members 241 are provided between the partition wall 230 and the scrubber body 200 or between the partition wall 230 are not particularly limited. , Any number or configuration is possible, as long as the number and configuration between the partition wall 230 and the scrubber body 200 or between the partition wall 230 can be opened or closed.

In this configuration, the control unit 400 opens and closes between the partition wall 230 and the scrubber body 200 or between the partition wall 230 by the opening/closing unit 240, so that the plurality of processing spaces ST of the scrubber body 200 The number of sub-spaces S1 and S2 through which exhaust gas flows for treatment among the sub-spaces S1 and S2 may be adjusted.

For example, when the load of the engine or boiler connected to the scrubber body 200 is less than the maximum load, or when only some of the plurality of engines or boilers connected to the scrubber body 200 are operated, the bulkhead 230 and the scrubber Between the main body 200 or between the partition walls 230 may be closed by the opening and closing unit 240.

Accordingly, the exhaust gas introduced into the gas inlet 210 of the scrubber body 200 may be processed while flowing only the first partial space S1 of the processing space ST of the scrubber body 200.

In addition, when the load of the engine or boiler connected to the scrubber body 200 is the maximum load or when all of the plurality of engines or boilers connected to the scrubber body 200 are operated, the partition wall 230 and the scrubber body ( Between 200 or between the partition walls 230 may be opened by the opening and closing unit 240.

Thereby, the exhaust gas introduced into the gas inlet 210 of the scrubber body 200 can be processed while flowing through both the first and second partial spaces S1 and S2 of the processing space ST of the scrubber body 200. have.

As described above, when the scrubber according to the present invention is used, the scrubber may be operated according to the load of the engine or boiler connected to the scrubber or the number of engines or boilers operated among a plurality of engines or boilers connected to the scrubber, The scrubber can be operated efficiently, the life of the scrubber is extended, the replacement cost of the scrubber can be reduced, and the energy consumption of the scrubber can be reduced.

The scrubber described above is not limitedly applicable to the configuration of the above-described embodiments, but the embodiments may be configured by selectively combining all or part of each of the embodiments so that various modifications may be made.

100: scrubber 200: scrubber body
210: gas inlet 220: gas outlet
221: gas analysis unit 230: bulkhead
231: opening 240: opening and closing unit
241: opening and closing member 300: treatment liquid supply unit
310: pump 320: flow pipe
330: supply pipe 331: supply valve
400: control unit ST: processing space
S1: first subspace S2: second subspace

Claims (12)

A scrubber body having a treatment space in which exhaust gas introduced from the engine or boiler is treated;
A treatment liquid supply unit for supplying a treatment liquid to at least a portion of the treatment space through which the exhaust gas flows to treat the exhaust gas; And
According to the load of the engine or boiler connected to the scrubber body or the number of engines or boilers operated among a plurality of engines or boilers connected to the scrubber body, adjusting the size of a portion of the treatment space where exhaust gas is treated Control unit; Including,
The scrubber body is provided with a partition wall dividing at least a part of the processing space into a plurality of partial spaces,
The control unit is a scrubber that opens and closes an opening formed in the partition wall, between the partition wall and the scrubber body, or between the partition wall by an opening and closing unit, and controls the number of partial spaces through which exhaust gas flows for treatment among the plurality of partial spaces. . delete The scrubber of claim 1, wherein the opening and closing unit is provided on the partition wall to open and close the opening. The scrubber of claim 1, wherein the opening/closing unit is provided between the partition wall and the scrubber body or between the partition walls to open and close the partition wall and the scrubber body or between the partition walls. delete The scrubber according to claim 1, wherein the treatment liquid supply part extends into each of the plurality of partial spaces through the scrubber body and includes a plurality of supply pipes for supplying the treatment liquid to each of the plurality of partial spaces. The scrubber according to claim 6, wherein the treatment liquid supply unit further comprises a pump connected to the treatment liquid supply source, and a flow pipe connected to the pump and extending to the scrubber body, and each of the plurality of supply pipes is connected. The method of claim 7, wherein the control unit controls the pump and a supply valve provided in at least a portion of the plurality of supply pipes to supply the treatment liquid to a partial space in which exhaust gas flows for treatment among the plurality of partial spaces. Scrubber to be able to. The scrubber according to claim 8, wherein the scrubber body is provided with a gas inlet through which the exhaust gas to be treated flows in and a gas outlet through which the treated exhaust gas is discharged to the outside by being connected to the engine or boiler. The method of claim 9, wherein the gas outlet is provided with a gas analysis unit for analyzing exhaust gas,
The controller is a scrubber that adjusts the amount of processing liquid supplied to the partial space according to the analysis result of the gas analysis unit. The scrubber according to claim 1, wherein the treatment liquid absorbs sulfur oxides or dust from the exhaust gas to purify the exhaust gas or cools the exhaust gas for treatment. The scrubber according to claim 11, wherein the treatment liquid is seawater.

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