KR20160104416A - Multistage type absorption apparatus and method for pollutant treatment by multistage type absorption apparatus - Google Patents

Abstract

Provided are a multistage absorption apparatus and a method for treating contaminants by using the multistage absorption apparatus, which are capable of more efficiently and continuously treating contaminants without waste of adsorbents. The multistage absorption apparatus comprises: a feed conduit through which gas is supplied; a discharge conduit through which gas is discharged; an adsorption unit which includes at least three adsorption towers, and treats contaminants contained in the gas; a connection part which includes at least one connection conduit adapted to connect the adsorption towers to thus form a passage and a connection control valve adapted to control the passage by selectively opening and closing the connection conduit, and selectively connects at least two of the adsorption towers; a feed control valve which connects any one of the adsorption towers, connected by the connection part, to the feed conduit by selectively opening and closing a portion between the adsorption unit and the feed conduit; and a discharge control valve which connects the other one of the adsorption towers, connected by the connection part, to the discharge pipe by selectively opening and closing a portion between the adsorption unit and the discharge pipe. The gas is sequentially passed through at least two of the adsorption towers.

Description

TECHNICAL FIELD [0001] The present invention relates to a multistage adsorption treatment apparatus and a multistage adsorption treatment apparatus,

The present invention relates to a multi-stage adsorption treatment apparatus and a multi-stage adsorption treatment apparatus, and more particularly, to a multi-stage adsorption treatment apparatus and a multi-stage adsorption treatment apparatus capable of continuously treating contaminants more efficiently without waste of the adsorbent. To a method for treating pollutants.

In the industrial field, various gasses emitted contain excessive amounts of pollutants such as various dusts and harmful particles. Various harmful gases are generated in manufacturing facilities and power generation facilities and various environmental facilities, and these gases are continuously discharged. These waste gases serve as the main source of contamination to the atmosphere.

Therefore, a treatment facility for purifying these gases is indispensable, and in particular, a treatment facility is mandatory in an industrial facility that continuously generates waste gas. The treatment facility is formed so as to be able to be treated in various ways such as adsorbing, accumulating, depositing and separating and collecting contaminants contained in the gas.

As an example of such a treatment facility, an apparatus such as an adsorption column may be used in which an adsorbent is filled in the adsorbent, and a gas is passed between the adsorbents to purify the adsorbent. Korean Utility Model Laid-Open No. 20-1999-0024071 and the like. The adsorption tower may be connected to the supply side of the waste gas through a pipeline, and may be formed so as to purge the supplied waste gas through the inside thereof and discharge it to the discharge side.

However, when a conventional adsorption column is used, there is a problem in that the adsorbent charged in the adsorbent needs to be replaced before the adsorbent adsorbs contaminants and is completely saturated. That is, if a certain amount or more of the adsorbent charged in the adsorption tower is adsorbed by the adsorbed contaminants and reaches a break through point, the purification ability of the contaminants in the entire apparatus is greatly reduced There was a problem.

Therefore, in order to maintain the treatment level of the apparatus normally, the adsorbent and the like have to be replaced relatively frequently, thereby unnecessarily stopping the operation of the apparatus and replacing the adsorbent in a completely unused state so that the apparatus is operated in a very inefficient manner And many other difficulties.

Korean Utility Model Publication No. 20-1999-0024071, Jul. 1999, (Drawing 1)

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above problems, and it is an object of the present invention to provide a multi-stage adsorption treatment apparatus capable of continuously treating contaminants more efficiently without waste of an adsorbent, , A method for treating pollutants in a multi-stage adsorption treatment apparatus capable of continuously treating pollutants.

The technical problem of the present invention is not limited to the above-mentioned problems, and other problems not mentioned can be clearly understood by those skilled in the art from the following description.

A multi-stage adsorption treatment apparatus according to the present invention comprises: a supply pipe for supplying a gas before treatment; A discharge pipe for discharging the treated gas; An adsorption treatment section including at least three adsorption towers for adsorbing contaminants contained in the gas before treatment; At least one connection pipe connecting the adsorption towers to form a flow path and a connection control valve for opening and closing the connection pipe to regulate the flow path to selectively connect at least two of the adsorption towers; A supply control valve for opening / closing the adsorption processing unit and the supply pipe and connecting any one of the adsorption towers connected to each other by the connection unit to the supply pipe; And a discharge control valve which opens and closes between the adsorption processing unit and the discharge pipe and connects the other one of the adsorption towers connected to each other by the connection unit to the discharge pipe, wherein a gas containing contaminants is supplied to at least one of the adsorption towers of the adsorption treatment unit Which are sequentially passed through and processed.

The adsorbent contained in any one of the adsorption towers connected to each other by the connection portion can maintain at least a part of the adsorbent in an unsaturated state.

The adsorbent contained in the adsorption tower at the rearmost end of the adsorption towers connected to each other by the connection portion can maintain at least a part of the adsorbent located on the exhaust side in an unsaturated state.

The remaining adsorption tower not connected to each other by the connection part may include only the unused adsorbent, or may include only the saturated adsorbent.

When the adsorbent contained in any one of the adsorption towers connected to each other by the connection part is saturated, the flow path of the connection pipe is changed and the adsorption tower containing only the adsorbent saturated can be separated.

Wherein the adsorption treatment apparatus further comprises a branch supply pipe formed between the adsorption treatment unit and the supply pipe and branched from the supply pipe and a branch discharge pipe formed between the adsorption treatment unit and the discharge pipe and branched from the discharge pipe, The supply control valve is formed in the branch supply pipe, the discharge control valve is formed in the branch discharge pipe, the branch supply pipe and the branch discharge pipe are connected to one end of each of the adsorption towers, As shown in Fig.

Each of the adsorption towers may selectively pass a gas in a first direction from the branch supply pipe toward the connection pipe, or a second direction from the connection pipe toward the branch discharge pipe and opposite to the first direction.

At least three of the adsorption towers include a first adsorption tower, a second adsorption tower, and a third adsorption tower arranged in parallel with each other, wherein the connection tube includes a first connection pipe for connecting between the first adsorption tower and the second adsorption tower, A second connection pipe connecting the second adsorption column and the third adsorption column and a third connection pipe connecting the third adsorption column and the first adsorption column, The second connection pipe, and the third connection pipe, respectively.

The adsorption treatment apparatus may be configured such that the connection control valves of the first connection pipe, the second connection pipe, and the third connection pipe are sequentially opened and the remainder not closed can be closed.

The adsorption treatment apparatus may further include a sensor unit installed in the supply pipe, the discharge pipe, and the connection pipe to measure the concentration of the pollutant, and a controller for controlling the connection control valve, the supply control valve, And a control unit for controlling at least one of the discharge control valves.

Wherein the adsorption treatment apparatus further comprises a control unit for controlling the connection control valve when the difference between the concentration measurement value of the supply pipe and the concentration measurement value of the connection pipe and the concentration measurement value of the treated gas is less than a reference value, Thereby changing the flow path and separating the adsorption tower between the supply pipe and the connection pipe.

The control unit adjusts at least one of the connection control valve, the supply control valve, and the discharge control valve to disconnect any one of the adsorption towers connected to each other, reconnect the remaining adsorption towers to the other adsorption towers, The flow direction of the gas passing through the remaining adsorption tower can be reversed in the direction opposite to that before the reconnection.

The adsorption treatment apparatus may further include an adsorbent input unit formed at an upper end of the adsorption column and an adsorbent discharge unit formed at a lower end of the adsorption column.

The adsorbent injecting unit may include an injection unit formed at an upper end of the adsorption tower, and the adsorbent discharge unit may include a beveling opening / closing unit formed by sloping the bottom surface of the adsorption tower.

The adsorption treatment apparatus may further include a fluid injection unit for injecting a fluid into the adsorption column to increase the pressure.

A method for treating contaminants in a multi-stage adsorption treatment apparatus according to the present invention comprises the steps of: (a) selectively connecting at least two of the adsorption towers by controlling a flow path between the adsorption towers by connecting portions formed between at least three adsorption towers; (b) supplying the gas before treatment to any one of the adsorption towers connected to each other by the connection portion, sequentially passing the gas to at least two adsorption towers connected to each other, and discharging the treated gas from the other one of the adsorption towers connected to each other step; And (c) separating any one of the at least two adsorption towers connected to each other by changing the flow path between the adsorption towers by the connecting portion, and selectively removing at least two of the adsorption towers excluding the separated adsorption towers among the at least three adsorption towers, .

The adsorbent contained in any one of the adsorption towers connected to each other by the connection portion can maintain at least a part of the adsorbent in an unsaturated state.

The adsorbent contained in the adsorption tower at the rearmost end of the adsorption towers connected to each other by the connection portion can maintain at least a part of the adsorbent located on the exhaust side in an unsaturated state.

The separated adsorption tower among the at least two adsorption towers connected to each other in the step (c) may contain only a saturated adsorbent.

The step (c) may be carried out when the difference between the concentration of the pollutant in the gas before treatment, the concentration of the pollutant in the gas passing through the adsorption tower, and the concentration of the pollutant in the treated gas becomes less than the reference value .

Each of the adsorption towers may be connected to one of a supply pipe for supplying gas before treatment and a discharge pipe for discharging the treated gas to one end and a connection pipe for forming a flow passage at the other end.

Each of the adsorption towers is directed from one end of the connection pipe to the other end to which the connection pipe is connected or one end to which the discharge pipe is connected from the other end to which the connection pipe is connected, The gas can be selectively passed in a second direction opposite to the direction of the gas.

In the step (c), any one of the adsorption towers connected to each other is separated, and the remaining adsorption tower is reconnected to the other adsorption tower, and the flow direction of the gas passing through the remainder of the adsorption tower is reversed Can be inverted.

According to the multi-stage adsorption treatment apparatus of the present invention, contaminants can be easily treated by utilizing all of the adsorbent charged in the adsorption tower, while keeping the treatment level appropriately so that the apparatus does not reach the break point or the like. In addition, it is possible to continuously improve the treatment efficiency by continuously operating the apparatus without interrupting the treatment operation, and this operation process is automatically performed according to the change of the concentration of the pollutant, and the adsorbent can be easily It is very useful because it can be exchanged.

Further, according to the pollutant treatment method of the multi-stage adsorption treatment apparatus of the present invention, contaminants can be easily treated by utilizing all the adsorbents that are charged while appropriately maintaining the treatment level so as not to reach breakage points, It is possible to obtain a very useful effect of greatly increasing the processing efficiency by continuously operating the apparatus without interruption.

1 is a diagram showing the overall configuration of a multi-stage adsorption treatment apparatus according to an embodiment of the present invention.
FIG. 2 is a view showing a pipe connection structure and a control unit of the multi-stage adsorption treatment apparatus of FIG. 1;
Fig. 3 is a view showing the adsorbent injection and discharge structure of the multi-stage adsorption treatment apparatus of Fig. 1;
FIGS. 4 to 10 are operation diagrams sequentially showing a pollutant treatment process of the multi-stage adsorption treatment apparatus.
11 is a flowchart showing a pollutant treatment method of the multi-stage adsorption treatment apparatus according to an embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention and methods for achieving them will become apparent with reference to the embodiments described in detail below with reference to the accompanying drawings. The present invention may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the invention to those skilled in the art. And is provided to clearly explain the scope of the invention to those skilled in the art, and the present invention is only defined by the claims. Like reference numerals refer to like elements throughout the specification.

Hereinafter, a multi-stage adsorption treatment apparatus and a method for treating pollutants in the multi-stage adsorption treatment apparatus according to an embodiment of the present invention will be described in detail with reference to FIGS. 1 to 11. FIG. In order to make the description clear and concise, the multi-stage adsorption treatment apparatus will be described in detail with reference to FIGS. 1 to 3, and a method of treating the multi-stage adsorption treatment apparatus with a pollutant will be described in detail with reference to FIGS. 4 to 11 .

Hereinafter, one end of the adsorption tower and the other end of the adsorption tower are located on opposite sides of the adsorption towers, and the lower end of each adsorption tower may be one end and the upper end may be the other end. The first direction in which the gas flows may be a direction from one end to the other end, and the second direction may be a direction from the other end to the opposite end.

Fig. 1 is a diagram showing the overall configuration of a multi-stage adsorption treatment apparatus according to an embodiment of the present invention. Fig. 2 is a view showing a pipeline connection structure and a control unit of the multi-stage adsorption treatment apparatus of Fig. 1, 1 shows the adsorbent injection and discharge structure of the multi-stage adsorption treatment apparatus.

1 to 3, a multi-stage adsorption treatment apparatus 1 according to an embodiment of the present invention includes a supply pipe 10 for supplying a gas before treatment, a discharge pipe 20 for discharging gas after treatment, An adsorption treatment section 30 for adsorbing contaminants contained in the gas before the treatment including the adsorption tower, at least one connection pipe for connecting the adsorption towers to form a flow path, and a connection control A connecting portion 40 for selectively connecting at least two of the adsorption towers including the valves 410, 420 and 430, an adsorption tower 30 connected to the adsorption processing portion 30 by a connection portion 40, And the other one of the adsorption towers connected to each other by the connection part 40 is opened and closed between the adsorption processing part 30 and the supply pipe 10, (20) and a discharge outlet And it may be formed including a bracket (210, 220, 230).

In the multi-stage adsorption treatment apparatus 1 according to the embodiment of the present invention, the gas containing contaminants can be continuously passed through at least two adsorption towers of the adsorption tower 30, have. In addition, by selectively and sequentially changing the connection of at least two adsorption towers, it is possible to utilize all of the adsorbent and the like charged in the adsorption tower and to maximize the treatment efficiency of the pollutant while operating the apparatus continuously without interruption.

Hereinafter, the three adsorption towers of the first adsorption tower 31, the second adsorption tower 32 and the third adsorption tower 33, and the first connection pipe 41 connecting the adsorption towers, The second connection pipe 42, and the third connection pipe 43 are formed. However, the technical idea of the present invention is not limited to this example, and the number of adsorption towers included in the adsorption treatment section 30 as described above may be at least three, that is, three or three or more. In addition, it is possible to form various kinds of flow paths with one or more connection pipes between the adsorption towers, and at least two, that is, two or more than two, adsorption towers can be selectively connected Two or more adsorption towers connected to each other can be sequentially passed through to configure the gas to be treated.

1, the multi-stage adsorption treatment apparatus 1 includes an adsorption treatment section 30 including a first adsorption tower 31, a second adsorption tower 32, a third adsorption tower 33, an adsorption treatment section 30, A flow path is formed between the first adsorption tower 31, the second adsorption tower 32 and the third adsorption tower 33 of the adsorption treatment unit 30 connected to the supply pipe 10 connected to the supply pipe 10 and the adsorption treatment unit 30, A supply control valve 110 for opening and closing between the supply pipe 10 and the adsorption processing unit 30 and a discharge control valve for opening and closing between the discharge pipe 20 and the adsorption treatment unit 30, And includes valves 210, 220, and 230. The multi-stage adsorption treatment apparatus 1 includes a housing 50 for housing the adsorption treatment apparatus 1 therein, an adsorbent charging unit 60 formed at the upper end of the adsorption tower, and an adsorbent discharge unit 70 provided at the lower end of the adsorption tower So that the components can be safely protected and the adsorbent can be easily exchanged. Hereinafter, this will be described in more detail with reference to the drawings.

The supply pipe (10) and the discharge pipe (20) may be formed as independent channels. As shown in FIGS. 1 and 2, the supply pipe 10 and the discharge pipe 20 may be formed to extend across different adsorption towers (the first adsorption tower, the second adsorption tower, and the third adsorption tower). One end of the supply pipe 10 and one end of the discharge pipe 20 may each extend to the outside of the apparatus. For example, an extended end of the supply pipe 10 may be connected to a factory facility or the like, May be formed so as to be connected to an exhausting facility for evacuating the purified gas after treatment to the outside.

1 and 2, the multi-stage adsorption treatment apparatus 1 includes branch feed pipes 11, 12 and 13 formed between the adsorption processing unit 30 and the feed pipe 10 and branched from the feed pipe 10, And branch discharge pipes 21, 22 and 23 formed between the adsorption processing unit 30 and the discharge pipe 20 and branched from the discharge pipe 20. The branch supply pipes 11, 12 and 13 and the branch discharge pipes 21 and 22 and 23 are connected to the first adsorption tower 31, the second adsorption tower 32 and the third adsorption tower 33 from the supply pipe 10 and the discharge pipe 20, And may be connected to one end of each of the adsorption towers (the first adsorption tower, the second adsorption tower, and the third adsorption tower). The above-described supply control valves 110, 120 and 130 and the discharge control valves 210, 220 and 230 can be formed in the branch supply pipes 11, 12 and 13 and the branch discharge pipes 21, 22 and 23, respectively .

The branch supply pipes 11, 12, 13 and the branch discharge pipes 21, 22, 23 may be configured to share a part of the pipeline at the point where they are connected to the respective adsorption towers as shown in the respective figures. However, it is not necessary to be limited thereto, and it is also possible that each of them is connected to each adsorption tower through a completely separated channel. The supply control valves 110, 120 and 130 and the discharge control valves 210, 220 and 230 are organically opened and closed to selectively supply the gas before the treatment through one end of each adsorption tower, So that the flow path can be adjusted.

The connecting pipes (the first connecting pipe, the second connecting pipe, and the third connecting pipe) are connected between the other ends of the different adsorption towers. The connection pipe includes a first connection pipe 41 connecting the first adsorption tower 31 and the second adsorption tower 32 and a second connection pipe 41 connecting the second adsorption tower 32 and the third adsorption tower 33 And a third connection pipe 43 connecting the third adsorption tower 33 and the first adsorption tower 31. The second connection pipe 42 is connected to the first adsorption tower 33, The first connection pipe 41, the second connection pipe 42 and the third connection pipe 43 may have connection control valves 410, 420, and 430 for opening and closing the connection pipes 41 and 42, respectively.

Namely, the branch supply pipes 11, 12, 13 (for example, the branch pipes 11, 12, 13) can be connected to one end of each of the first adsorption tower 31, the second adsorption tower 32 and the third adsorption tower 33 And a branch pipe (21, 22, 23) are formed, and one of a supply pipe (10) for supplying gas before treatment and a discharge pipe (20) for discharging gas after treatment is selectively connected to one end of the adsorption tower . On the other hand, the connection pipe may be formed between the other end of each adsorption column (which may be opposite to the one end, for example, the upper end of each of the figures) to freely flow the gas. Each of the adsorption towers (the first adsorption column, the second adsorption column, and the third adsorption column) is connected to each of the connection pipes (first connection pipe, second connection pipe, third connection pipe) from the branch supply pipes 11, 12, Or in a second direction that is directed from the respective connection pipe toward the branch discharge pipes 21, 22, 23 and in a direction opposite to the first direction.

That is, the connecting portion 40 adjusts the flow path to selectively connect at least two of the adsorption towers and change the connection state of the adsorption towers so that the flow direction of the gas passing through each adsorption tower is directed from one end to the other end of each adsorption tower Or in a second direction from the other end toward the one end. Through this, the adsorbent (refer to A in FIG. 3) filled in the adsorption column can be used until the adsorbent is adsorbed and all of the adsorbent is converted into a saturated state, thereby greatly improving the treatment efficiency of the contaminants. This will be described in more detail in the pollutant treatment method of the multi-stage adsorption treatment apparatus described later.

The adsorbent contained in one of the adsorption towers connected to each other by the connection portion 40 can maintain at least a part of the adsorbent in an unsaturated state. Particularly, the adsorbent contained in the adsorption tower at the rearmost end of the adsorption towers connected by the connection portion 40, (One side of the gas that flows when the gas flows into the adsorption tower and then escapes from the adsorption tower after passing through the inside of the adsorption tower) can be maintained in an unsaturated state. For example, the connection control valve 410 formed in the first connection pipe 41 of the connection unit 40 is opened and the connection control valves 420 and 420 formed in the remaining connection pipes (the second connection pipe and the third connection pipe) The first adsorption tower 31 and the second adsorption tower 32 can be connected to each other and the supply control valve 31 formed in the branch supply pipe 11 between the first adsorption tower 31 and the supply pipe 10 can be closed, The discharge control valve 220 formed in the branch discharge pipe 22 between the first adsorption tower 31 and the discharge pipe 20 is opened while the discharge control valve 220 formed in the branch discharge pipe 22 between the second adsorption tower 32 and the discharge pipe 20 is opened, The discharge control valve 210 formed in the second adsorption tower 21 and the supply control valve 120 formed in the branch supply pipe 12 between the second adsorption tower 32 and the supply pipe 10 are closed so that the gas is supplied to the first adsorption tower 31, And the second adsorption tower 32 in order to be purified.

In this case, a flow of gas passing from the first adsorption tower 31 to the second adsorption tower 32 is formed, and at least a part of the adsorbent contained in the second adsorption tower 32 located at the rear end along the gas flow is saturated Can be maintained. That is, since the gas is purified by sequentially passing through the adsorption towers connected to each other, even if the adsorbent of the adsorption tower located at the front end along the flow direction of the gas adsorbs the contaminants and is saturated, the adsorbent of the adsorption tower located at the downstream end is at least partially saturated It is possible to maintain a usable state.

Accordingly, when the adsorbent (the adsorbent of the first adsorption tower in the above case) contained in any one of the adsorption towers connected to each other by the connection part 40 is saturated, the connection control valves 410, 420 and 430 are opened and closed, The adsorption tower (the first adsorption column in the above case) containing only the adsorbent with the changed channel can be separated. After the separation, for example, the second adsorption tower 32 containing the usable adsorbent is connected to the third adsorption tower 33 containing only the unused adsorbent, through which the gas is passed again and again successively and successively through the adsorption columns And can be very easily cleaned.

The remaining adsorption towers not connected to each other by the connecting portion 40 include only the unused adsorbent or only the saturated adsorbent. That is, when the first adsorption tower 31 and the second adsorption tower 32 are connected to each other, the unused third adsorption tower 33 includes only the unused adsorbent, and the flow path is changed as in the above- When the second adsorption tower 31 is separated and the second adsorption tower 32 is connected to the third adsorption tower 33, only the completely used saturated adsorbent may be included in the separated first adsorption tower 31. In this way, the used adsorption tower can be separated and the contaminants contained in the gas can be continuously purified using at least three adsorption towers while changing the combination by sequentially connecting the usable adsorption tower and the unused adsorption tower .

As shown in FIG. 2, the multi-stage adsorption treatment apparatus 1 is installed in a supply pipe 10, a discharge pipe 20, connection pipes (first connection pipe, second connection pipe, third connection pipe) The connection control valves 410, 420 and 430 and the supply control valve 410 are controlled according to the measured concentration values of the sensor units 101, 102, 103a, 103b and 103c and the sensor units 101, 102, 103a, And a control unit 90 for controlling at least one of the discharge control valves 110, 120 and 130 and the discharge control valves 210, 220 and 230 so that connection and combination change between the adsorption towers can be automatically performed. The control unit 90 controls the sensor units 101, 102, 103a, 103b and 103c, the connection control valves 410, 420 and 430, the supply control valves 110, 120 and 130, The control signal is connected to the valves 210, 220 and 230 and receives data signals transmitted from the sensor units 101, 102, 103a, 103b and 103c, 430, the supply control valves 110, 120, and 130, and the discharge control valves 210, 220, and 230 to control the respective valves.

For example, as described above, the connection control valves 410, 420, and 430 of the first connection pipe 41, the second connection pipe 42, and the third connection pipe 43 are sequentially opened and opened And the remaining ones are closed so that the first adsorption tower 31 and the second adsorption tower 32, the second adsorption tower 32 and the third adsorption tower 33, the third adsorption tower 33 and the first adsorption tower 31 are sequentially The flow path can be changed to connect. At this time, the supply control valves 110, 120, and 130 and the discharge control valves 210, 220, and 230 formed in the respective branch supply pipes 11, 12, and 13 and the branch discharge pipes 21, The gas is sequentially passed from the first adsorption tower 31 to the second adsorption tower 32 or sequentially from the second adsorption tower 32 to the third adsorption tower 33 Or sequentially passed from the third adsorption tower 33 to the first adsorption tower 31, and can be continuously treated.

In particular, whenever the combination of the adsorption towers connected to each other is changed, the flow direction of the gas passing through the inside of the adsorption towers connected to each other is selectively changed to the first direction or the second direction described above, It is possible to treat pollutants very effectively by utilizing all of the adsorbent charged in the adsorption column while maintaining the treatment level at an appropriate level.

The control unit 90 may be configured to measure the concentration of the supply pipe 10 measured from the sensor unit 101 of the supply pipe 10 and the measured value of the concentration of the supply pipe 10 to the first connection pipe 41, The concentration measurement value of the connection pipe measured from the sensor sections 103a, 103b and 103c of the connection pipe 43 and the measurement value of the treated gas measured from the sensor section 102 of the discharge pipe 20 When the difference is less than the reference value, the connection control valves 410, 420, and 430 are adjusted to change the flow path, and the supply pipe 10 and the connection pipe (any one of the first connection pipe, the second connection pipe, (Which may be any one of the first adsorption tower, the second adsorption tower, and the third adsorption tower) between the adsorption tower and the adsorption tower.

In this way, it is possible to easily separate the adsorption tower containing only the adsorbent saturated as described above, and the control unit 90 can also control the connection control valves 410, 420 and 430, the supply control valves 110, 120 and 130, And at least one of the discharge control valves 210, 220 and 230 to separate any one of the adsorption towers connected to each other and reconnect the remaining adsorption tower to the other adsorption tower, The flow direction can be reversed in the opposite direction to that before the reconnection. At this time, the flow direction of the gas reversed inside the adsorption column may be reversed from the first direction to the second direction, or from the second direction to the first direction. The operation process of the apparatus and the pollutant treatment process using the pollutant treatment method will be described in detail in the pollutant treatment method of the multi-stage adsorption treatment apparatus described later.

1 and 3, the multi-stage adsorption treatment apparatus 1 includes an adsorbent input unit 60 formed at the upper end of each adsorption column and an adsorbent discharge unit 70 formed at the lower end of each adsorption column So that the adsorbent (see A in FIG. 3) inside the separated adsorption column can be very easily exchanged. Hereinafter, the adsorbent input unit 60, the adsorbent discharge unit 70, and other remaining components of the multi-stage adsorption treatment apparatus 1 will be described in detail.

The adsorbent charging portion 60 and the adsorbent discharging portion 70 may be located above and below the adsorption processing portion 30, respectively. Although not shown in detail, a supply structure such as a pipe or a tank for supplying an adsorbent may be formed in the adsorbent input portion 60, and the adsorbent discharge portion 70 may be formed by a process for treating the exhaust gas or the adsorbent for discharging the discharged adsorbent Device or the like can be formed. The adsorbent charging unit 60 and the adsorbent discharging unit 70 may be formed on the upper and lower sides of the housing 50 that houses the adsorption processing unit 30 and the like therein.

As shown in FIG. 3, the adsorbent input unit 60 includes injection units 61, 62 and 63 formed at the upper ends of the respective adsorption towers. The adsorbent discharge unit 70 is formed by sloping the bottom surface of each adsorption tower, (71, 72, 73). Therefore, even if any one of the first adsorption tower 31, the second adsorption tower 32 and the third adsorption tower 33 is used, the unused adsorbent A can be very easily injected by using the injection units 61, 62 and 63 And the spent adsorbent A can be very easily discharged by using the slanting face open / close portions 71, 72, and 73. [ The injectors 61, 62 and 63 can be formed, for example, to rotate the internal screws 61a, 62a and 63a to more easily inject powdery adsorbent A, A may be formed in a cyclone shape so as to be able to move while rotating inside the cylindrical part. The injection units 61, 62, and 63 may be formed in various shapes to easily inject the adsorbent A.

When the slideway opening / closing portions 71, 72, and 73 are opened, the saturated adsorbent charged in each adsorption column is easily moved to the respective adsorbent discharge pipes 70a, 70b, and 70c through the inclined surfaces, And can be discharged very easily. When the discharge is completed, the bevel face opening / closing portions 71, 72 and 73 are closed and closed, and the unused clean adsorbent A can be easily injected through the injection portions 61, 62 and 63 at the upper end of each adsorption tower. An opening / closing member (not shown) that can be opened and closed by various methods such as a rotary type or a slide type type can be installed between the injection portions 61, 62 and 63 and the connection portions of the adsorption towers, ) And the adsorption tower can be opened or closed. When the adsorbent (A) is charged using the screws (61a, 62a, 63a) as described above, it may be advantageous to provide an opening / closing member that is opened and closed in a rotational manner.

In addition, each of the adsorption towers may be connected to a fluid injection unit 80 for injecting the fluid C into the adsorption tower to raise the pressure. The fluid injecting section 80 includes a fluid injecting tube 81 including a portion branched toward the upper end of the first adsorption tower 31, the second adsorption tower 32 and the third adsorption tower 33, for example, And a compressor 82 for injecting a high-pressure fluid into the fluid injection pipe 81. The fluid may be formed of, for example, compressed air or the like and injected into the interior of the adsorption column.

The injected fluid can raise the pressure inside the adsorption tower when the above-mentioned bevel opening / closing portions 71, 72, 73 are opened, thereby helping to more easily exhaust the saturated adsorbent (A). The position of the fluid injection pipe 81 or the like is adjusted so that the fluid C is injected onto the injection path of the adsorbent input part 60 (that is, the path passing through the injection part and toward the inside of the adsorption tower) It may also be possible to use it for the purpose of dispersing when the adsorbent (A) is added.

On the other hand, at least one fan 51 is installed on one side of the housing 50 so that it can be easily exhausted in an emergency situation such as pollution, gas, ) To automatically control it. The process of exchanging the adsorbent A using the adsorbent injecting unit 60 and the adsorbent discharging unit 70 can also be automatically performed through the control of the control unit (see 90 in FIG. 2) and the like. Therefore, the entire process of treating pollutants using the multi-stage adsorption treatment apparatus 1 including the selective connection and the combination change process of the different adsorption towers, the exchange process of exchanging the adsorbent of the adsorption tower in the standby state after the connection is separated is very convenient . Hereinafter, the pollutant treatment method will be described in detail.

Hereinafter, with reference to FIGS. 4 to 11, a method for treating contaminants in a multi-stage adsorption treatment apparatus according to an embodiment of the present invention will be described in detail. The description proceeds based on the flowchart of FIG. 11 with reference to the respective drawings of FIGS. 4 to 10. The respective components of the multi-stage adsorption treatment apparatus mentioned in the description are not described in the above description And shall proceed as described in the following.

FIGS. 4 to 10 are operation diagrams sequentially showing a pollutant treatment process of the multi-stage adsorption treatment apparatus, and FIG. 11 is a flowchart showing a pollutant treatment method of the multi-stage adsorption treatment apparatus according to an embodiment of the present invention. FIGS. 4 to 10 illustrate the connection relationship with the control unit in order to simplify and clarify the operation process.

4 to 11, a method for treating contaminants in a multi-stage adsorption treatment apparatus according to an embodiment of the present invention includes adjusting a flow path between adsorption towers by connecting portions 40 formed between at least three adsorption towers (S100 A step S200 of selectively connecting at least two of the adsorption towers, a step of supplying the gas before treatment to any one of the adsorption towers connected to each other by the connection unit 40 (S300) (S500) of discharging the treated gas from the other one of the adsorption towers connected to each other (S500), and changing the flow path between the adsorption towers to the connection portion (40) to separate any one of the at least two adsorption towers (S700), and selectively connecting at least two of the remaining adsorption towers except for the separated one of the at least three adsorption towers (S800).

That is, in the method for treating pollutants in the multi-stage adsorption treatment apparatus according to an embodiment of the present invention, at least two of the at least three adsorption towers different from each other are selectively connected as described above, and the adsorption tower sequentially passes And purifying contaminants contained in the gas, separating the adsorbent contained in any one of the adsorbing towers connected to each other when the adsorbent is saturated, and reconnecting at least two of the adsorbing towers other than the separated adsorbing towers. Through this process, at least two adsorption towers connected to each other are successively changed in order of connection among at least three adsorption towers, and at least two of the at least three adsorption towers are selectively and repeatedly combined so that each adsorption tower sequentially It is possible to maintain the treatment level of the pollutant to an appropriate level so that all of the adsorbent contained therein is saturated until reaching a break point or the like.

Separating any one of at least two adsorption towers connected to each other by changing the flow path between the adsorption towers and selectively connecting at least two of the adsorption towers excluding the separated adsorption towers among the at least three adsorption towers , And S800), one of the adsorption towers connected to each other is separated, and the remainder of the adsorption tower is reconnected to the other adsorption tower, and the flow direction of the gas passing through the remainder of the adsorption tower is reconnected It may be reversed in the opposite direction.

That is, when the combination of the adsorption towers connected to each other is changed, the flow direction of the gas passing through the inside of the adsorption tower is reversed in opposite directions (the first direction and the second direction described above) The adsorption column containing only the saturated adsorbent is separated and the adsorbent is exchanged each time the combination of the adsorption towers connected to each other is changed so that the apparatus continuously and continuously supplies the contaminants through the adsorption tower containing the adsorbent in a clean state It can be processed very easily.

Hereinafter, a pollutant treatment method of the multi-stage adsorption treatment apparatus having such characteristics will be described in detail with reference to the respective drawings. In order to maintain the description and continuity of the above-described multi-stage adsorption treatment apparatus, the first adsorption tower 31, the second adsorption tower 32, the third adsorption tower 33 An example of utilizing two adsorption towers will be described in detail.

First, as shown in FIG. 4, a connection section 40 formed between the first adsorption tower 31, the second adsorption tower 32, and the third adsorption tower 33 is used to connect the first connection pipe 41 ), The second connection pipe 42, and the third connection pipe 43 (S100). For example, the connection control valve 410 of the first connection pipe 41 is opened and the connection control valves 420 and 430 of the second connection pipe 42 and the third connection pipe 43 are closed, 1 adsorption tower 31 and the second adsorption tower 32 can be connected to each other by the connection unit 40 (S200).

In this case, the supply control valve 110 formed in the branch supply pipe 11 between the first adsorption tower 31 and the supply pipe 10 and the supply control valve 110 formed in the branch discharge pipe 22 between the second adsorption tower 32 and the discharge pipe 20 The discharge control valve 220 is opened and the discharge control valve 210 formed in the branch discharge pipe 21 between the first adsorption tower 31 and the discharge pipe 20 and the discharge control valve 210 formed between the second adsorption tower 32 and the supply pipe 10 The supply regulating valve 120 formed in the branch supply pipe 12 of the regenerator can be closed. Therefore, the gas B before the treatment is supplied to one end of the first adsorption tower 31 as shown and the gas B after treatment can be discharged to one end of the second adsorption tower 32. [

As described above, each of the adsorption towers is provided with a supply pipe 10 for supplying the gas B before the treatment and a discharge pipe 20 for discharging the gas after the treatment are selectively connected to one end of the adsorption tower, (At least one of the first connection pipe, the second connection pipe, and the third connection pipe) may be connected. That is, the above-described branch supply pipes 11, 12, 13 and the branch discharge pipe 21 (between the adsorption processing unit 30 including the respective adsorption towers and the supply pipe 10 and between the adsorption treatment unit 30 and the discharge pipe 20) The supply control valves 110, 120 and 130 and the discharge control valves 210, 220 and 230 located in the branch supply pipes 11 and 12 and the branch discharge pipes 21 and 22 and 23, So that the supply pipe 10 or the discharge pipe 20 can be selectively connected to one end of each adsorption tower. Thus, the gas B before treatment is supplied to any one of the adsorption towers connected to each other (S300), the gas B is sequentially passed through the adsorption towers connected to each other (S400), and the gas B) can be easily discharged (S500).

As shown in FIG. 4, the gas B flows in a first direction from one end to the other end inside the first adsorption tower 31, passes through the first connection pipe 41, and then flows into the second adsorption tower 32 in the second direction from the other end toward the one end. In this manner, the adsorption towers different in gas B from one end to the other end of the first adsorption column 31, the other end of the second adsorption column 32 and one end thereof are sequentially and continuously passed through the gas B ) Can be easily purified.

The adsorbent A contained in each adsorption tower can be gradually converted to a saturated state along the flow direction of the gas B, that is, as shown in Fig. 4, the adsorbent A in the first adsorption tower 31 (A) can be switched to a saturated state at least partly along the first direction starting from one end by the gas (B) flowing in the first direction (see the hatched portion).

When the supply of the gas B is continued, the entire adsorbent A contained in the first adsorption tower 31 is converted into a saturated state as shown in Fig. 5, and the adsorbent A ) (See the respective hatched portions). At this time, the adsorbent (A) contained in the second adsorption tower (32) can be at least partially converted to the saturated state starting from the other end side in the flow direction of the above-mentioned gas (B) along the second direction. That is, the adsorbent contained in the adsorption tower at the rearmost end of the adsorption towers connected to each other is at least partially saturated at the discharge side (the side where the gas exits from the adsorption tower after passing through the adsorption tower as described above) Lt; / RTI > The concentration of contaminants in the pre-treatment gas B, the gas B passed through the adsorption column, and the post-treatment gas B can be supplied to the supply pipe 10, (At least one of the first connection pipe, the second connection pipe and the third connection pipe) and the discharge pipe (20), and compares the level of the pollutant treatment of the entire device, the time point of exchanging the adsorbent contained in each adsorption column And the like (S600).

That is, when the entire adsorbent (A) contained in the first adsorption tower (31) is converted to a saturated state as described above, the concentration measurement value measured by the sensor unit (101) of the supply pipe (10) The difference of the concentration measurement values measured by the sensor unit 103a of the first adsorption tower 41 is less than the reference value and it can be monitored that the contaminant concentrations are close to each other at the front end and the rear end of the first adsorption tower 31. [ When the concentration of the adsorbent A in the first adsorption column 31 is saturated and the treatment ability of the pollutant is reduced, the concentration measurement value of the supply pipe 10 and the concentration measurement value of the first connection pipe 41 It can be grasped easily by comparison. The concentration measurement value measured by the sensor unit 101 of the supply pipe 10 and the concentration measurement value measured by the sensor unit 102 of the discharge pipe 20 are compared with each other, The concentration measurement value measured by the sensor unit 103a of the first connection pipe 41 and the concentration measurement value measured by the sensor unit 102 of the discharge pipe 20 It is also possible to compare.

When the difference between the measured concentration value of the supply pipe 10 and the measured concentration value of the connection pipe (at least one of the first connection pipe, the second connection pipe and the third connection pipe) becomes less than the reference value, The adsorption tower between the supply pipe 10 and the connection pipe (at least one of the first connection pipe, the second connection pipe and the third connection pipe) can be separated by adjusting the flow paths 410, 420 and 430 ). Accordingly, the adsorption column containing only the adsorbent (A) saturated in the adsorbent is quickly excluded in the treatment process, and the adsorption tower containing the adsorbent (A) usable and the fresh adsorption tower containing only the adsorbent Can be improved.

In this manner, any one of at least two adsorption towers connected to each other by changing the flow path between the adsorption towers can be separated, and at least two of the adsorption towers excluding the separated adsorption towers among the at least three adsorption towers can be selectively connected again (S800) . This is because the difference between the contaminant concentration of the pretreatment gas B and the contaminant concentration of the gas B passed between the adsorption towers connected to each other and the contaminant concentration of the gas B after the treatment as described above Is less than the reference value. The data of the measured concentration measurement value is transmitted to the control unit (see 90 of FIG. 2), and the control unit 90 calculates a difference value and compares the calculated difference value with a preset reference value, And the control signal is transmitted to change the open / close state of each valve (connection control valve, supply control valve, discharge control valve).

Accordingly, at least two adsorption towers are selectively connected again, and the process gas is supplied to any one of the adsorption towers connected to each other, and the process of treating the pollutant by discharging the treated gas to the other adsorption tower is repeatedly performed (S900). Each time this process is repeated, the adsorption towers of the at least three adsorption towers included in the adsorption treatment unit 30 are sequentially changed, and the remaining adsorption towers can be repeatedly connected to each other in a predetermined order. The second adsorption tower 32 may be sequentially separated from the first adsorption tower 31, the second adsorption tower 32 and the third adsorption tower 33 in this order. When the first adsorption tower 31 is separated from the second adsorption tower 32, And the third adsorption tower 33 are connected to each other and the third adsorption tower 33 and the first adsorption tower 31 are connected to each other when the second adsorption tower 32 is separated and when the third adsorption tower 33 is separated The first adsorption tower 31 and the second adsorption tower 32 are connected to each other so that one sequence of combining two of the three different adsorption towers in sequence can be completed. Thereafter, the first adsorption tower 31 is again separated, and the second adsorption tower 32 and the third adsorption tower 33 are connected to each other, and this sequence can be repeated indefinitely. If necessary, the device can be shut down at any point in such a sequence, thereby terminating the process at a desired point in time. Hereinafter, the rest of the one sequence will be described.

When the opening and closing states of the respective valves (the connection control valve, the supply control valve, and the discharge control valve) are changed, the flow path can be changed as shown in FIG. The connection control valve 420 formed in the second connection pipe 42 is opened and the connection control valves 410 and 430 formed in the first connection pipe 41 and the third connection pipe 43 are closed, The second adsorption tower 32 and the third adsorption tower 33 may be connected to each other. At this time, the supply control valve 120 formed in the branch supply pipe 12 between the second adsorption tower 32 and the supply pipe 10 and the supply control valve 120 formed in the branch discharge pipe 23 between the third adsorption tower 33 and the discharge pipe 20 The discharge control valve 230 is opened and the discharge control valve 220 formed in the branch discharge pipe 22 between the second adsorption tower 32 and the discharge pipe 20 and the discharge control valve 220 formed between the third adsorption tower 33 and the supply pipe 10 The supply regulating valve 130 formed in the branch supply pipe 13 of the regenerator can be closed. Thus, the gas B before the treatment is supplied to one end of the second adsorption tower 32 as shown, and the gas B after treatment can be discharged to one end of the third adsorption tower 33.

At this time, the supply control valve 110 formed in the branch supply pipe 11 between the first adsorption tower 31 and the supply pipe 10, and the branch discharge pipe 21 between the first adsorption tower 31 and the discharge pipe 20 1 and 3) and the adsorbent discharge portion (see FIGS. 1 and 3) and the adsorbent discharge portion (see FIGS. 1 and 3) and the discharge control valve 210 formed are all closed so that the first adsorption tower 31 is excluded from the treatment process, 70), the adsorbent (A) in the first adsorption column (31) can be replaced with fresh unused ones. In this state, the first adsorption column 31 is temporarily kept in the standby state.

That is, the adsorption tower separated by the change of the flow path among the at least two adsorption towers connected to each other may contain only the adsorbent saturated at the separation time. However, this is not the case, and the saturated adsorbent may be discharged and the unused adsorbent may be introduced to quickly switch to a reusable state at any time. The adsorption towers separated in this state are temporarily kept in the standby state, and when other adsorption towers are separated, they are immediately involved in the pollutant treatment process again.

The gas B is sequentially passed through the second adsorption tower 32 and the third adsorption tower 33 connected to each other by changing the flow path as shown in Fig. 6, The substance is easily purified. At this time, the gas B flows in the first direction in the second adsorption tower 32, passes through the second connection pipe 42, and then flows into the third adsorption tower 33 in the second direction . That is, the combination of the adsorption towers connected to each other is changed, and in particular, the direction in which the gas B flows within the second adsorption tower 32, which is not separated and is reconnected with another adsorption tower and continuously participates in the treatment process, Direction (see Fig. 5).

Therefore, as shown in FIG. 6, the direction in which the adsorbent A contained in the second adsorption tower 32 is saturated can also be reversed. That is, at least a part of the adsorbent A may be gradually saturated along the first direction starting from one end of the second adsorption tower 32 along the direction in which the gas B flows. As a result, the adsorbent (A) at one side end and the other end side, which are located opposite to each other as shown in the figure, are sequentially changed into a saturated state and the adsorbent (A) disposed at both ends of the second adsorption tower 2 adsorbent (A) of the adsorption tower (32) can be effectively utilized to adsorb the contaminants very effectively.

When the gas B is continuously supplied, the entire adsorbent A included in the second adsorption tower 32 is also converted to a saturated state as shown in Fig. 7, and the adsorbent A contained in the third adsorption tower 33 (A) to a saturated state. The adsorbent A contained in the third adsorption tower 33 can be converted into a saturated state at least partially along the second direction starting from the other end along the flow direction of the gas B as shown in the figure.

Even in this case, the concentration measurement value measured by the sensor unit 101 of the supply pipe 10 is compared with the concentration measurement value measured by the sensor unit 103b of the second connection pipe 42 so that the difference between them is less than the reference value So that the contaminant concentrations close to each other at the front end and the rear end of the second adsorption tower 32 can be monitored. Therefore, as shown in FIG. 8, the second adsorption tower 32 is separated by regulating the flow path again, the third adsorption tower 33 and the first adsorption tower 31 are connected to each other, It is possible to easily purify the contaminants contained in the gas (B) by sequentially passing the gas (B) through the adsorption tower (1).

At this time, the connection control valve 430 formed in the third connection pipe 43 is opened and the connection control valves 410 and 420 formed in the first connection pipe 41 and the second connection pipe 42 are closed , The third adsorption tower (33) and the first adsorption tower (31) may be connected to each other. The supply control valve 130 formed in the branch supply pipe 13 between the third adsorption tower 33 and the supply pipe 10 and the discharge formed in the branch discharge pipe 21 between the first adsorption tower 31 and the discharge pipe 20 The control valve 210 is opened and the discharge control valve 230 formed in the branch discharge pipe 23 between the third adsorption tower 33 and the discharge pipe 20 and the discharge control valve 230 formed between the first adsorption tower 31 and the supply pipe 10, The supply control valve 110 formed in the branch supply pipe 11 can be closed. Thus, the gas B before the treatment is supplied to one end of the third adsorption tower 33 as shown, and the gas B after treatment can be discharged to one end of the first adsorption tower 31.

In this case as well, the direction of the gas B passing through the third adsorption column 33, which is reconnected to the other adsorption column, is reversed in the first direction in the second direction (see FIG. 7) The supply control valve 120 formed in the branch supply pipe 12 between the second adsorption tower 32 and the supply pipe 10 and the discharge control valve 120 formed in the branch discharge pipe 22 between the second adsorption tower 32 and the discharge pipe 20, All the valve 220 is closed so that the second adsorption tower 32 is excluded from the treatment process and the adsorbent A inside the second adsorption tower 32 is replaced with fresh fresh air so that the second adsorption tower 32 is temporarily The standby state can be maintained.

9, the entire adsorbent A contained in the third adsorption tower 33 is converted to a saturated state and the adsorbent A contained in the first adsorption tower 31 is converted into a saturated state, It can be converted to a saturated state to some extent. Therefore, the concentration measurement value measured by the sensor unit 101 of the supply pipe 10 is compared with the concentration measurement value measured by the sensor unit 103c of the third connection pipe 43, and the concentration of contaminants in the third adsorption tower 33 are close to each other at the front end and the rear end, and the connection state can be changed as shown in Fig. 10 by changing the flow path again.

That is, as shown in FIG. 10, by separating the third adsorption tower 33 containing only the saturated adsorbent A and connecting the first adsorption tower 31 and the second adsorption tower 32 again, When the first adsorption tower 31 is separated from the first adsorption tower 31, the second adsorption tower 32 and the third adsorption tower 33, the second adsorption tower 32, the third adsorption tower 33, The third adsorption tower 33 and the first adsorption tower 31 are connected to each other when the second adsorption tower 33 is disconnected and the first adsorption tower 33 is connected to the first adsorption tower 33 when the second adsorption tower 33 is disconnected, 31 and the second adsorption tower 32 are connected to each other to combine any two of the three adsorption towers in order to sequentially process the pollutants contained in the gas B to complete the one sequence .

At this time, the adsorbent (A) contained in the separated third adsorption column (33) is rapidly exchanged as clean and unused to maintain the standby state, and the gas passing through the inside of the first adsorption tower (31) B are reversed from the second direction to the first direction. In particular, as shown in the respective diagrams of FIGS. 4 to 10, the adsorbent A contained in any one of the adsorption towers connected to each other by the connecting portion 40 during the change of the flow path and the connection state of the adsorption tower, The adsorbent (A) contained in the adsorption tower at the rearmost end (the second adsorption tower in Figs. 4 and 5, the third adsorption tower in Figs. 6 and 7, the first adsorption tower in Figs. 8 and 9) At least a part of the adsorbent bed on the discharge side is not saturated so that the entire adsorption tower connected to the treatment process acts like one adsorption tower but only a part of them are used.

Therefore, it is possible to treat pollutants very effectively while maintaining the treatment level at an appropriate level so as not to reach the breakthrough point, and also, when the combination of the adsorption towers is changed as described above, the gas (B) It is possible to effectively utilize both ends of the adsorption column and effectively use all of the adsorbent (A) contained in one adsorption column. By repeating such a sequence, at least two adsorption towers of at least three different adsorption towers are selectively connected and the contaminants contained in the gas (B) are treated very easily, continuously and continuously without interruption .

On the other hand, for example, in the case where the amount of the supplied gas B excessively increases beyond the expected range, the at least three adsorption towers included in the adsorption treatment section 30 are all required to participate in the treatment process May also be possible. In this case, the connection pipe, the supply pipe, the discharge pipe, the pipe for connecting the suction processing unit 30 and the supply pipe, and the pipe connecting the suction pipe 30 and the discharge pipe may be appropriately modified, or a separate pipe may be additionally provided It is also possible to change the opening / closing method of the valve.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is clearly understood that the same is by way of illustration and example only and is not to be taken in conjunction with the present invention. You will understand. It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive.

1: Multi-stage adsorption treatment apparatus 10: Feed pipe
11, 12, 13: branch supply pipe 20: discharge pipe
21, 22, 23: branch discharge pipe 30: adsorption treatment section
31: first adsorption tower 32: second adsorption tower
33: third adsorption tower 40:
41: first connection pipe 42: second connection pipe
43: third connecting pipe 50: housing
51: Fan 60: Adsorbent input portion
61, 62, 63: injection part 61a, 62a, 63a: screw
70: adsorbent discharging portion 71, 72, 73:
70a, 70b, 70c: adsorbent discharge pipe 80: fluid injection unit
81: Fluid inlet tube 82: Compressor
90: control unit 110, 120, 130: supply control valve
210, 220, 230: discharge control valve 410, 420, 430: connection control valve
101, 102, 103a, 103b, 103c:
A: adsorbent B: gas
C: fluid

Claims (23)

A supply pipe for supplying gas before processing;
A discharge pipe for discharging the treated gas;
An adsorption treatment section including at least three adsorption towers for adsorbing contaminants contained in the gas before treatment;
At least one connection pipe connecting the adsorption towers to form a flow path and a connection control valve for opening and closing the connection pipe to regulate the flow path to selectively connect at least two of the adsorption towers;
A supply control valve for opening / closing the adsorption processing unit and the supply pipe and connecting any one of the adsorption towers connected to each other by the connection unit to the supply pipe; And
And a discharge control valve that opens and closes the adsorption processing unit and the discharge pipe and connects the other one of the adsorption towers connected to each other by the connection unit to the discharge pipe,
Wherein at least two of the adsorption towers of the adsorption treatment section are sequentially passed through the adsorption treatment section. The method according to claim 1,
Wherein the adsorbent contained in any one of the adsorption towers connected to each other by the connecting portion maintains at least a part of the adsorbent in an unsaturated state. The method according to claim 1,
Wherein the adsorbent contained in the adsorption tower at the rearmost end of the adsorption towers connected to each other by the connection portion maintains at least a part of the adsorbent located on the exhaust side in an unsaturated state. The method according to claim 1,
Wherein the remaining adsorption tower not connected to each other by the connection part comprises only the unused adsorbent or only the saturated adsorbent. The method according to claim 1,
Wherein when the adsorbent contained in any one of the adsorption towers connected to each other by the connection portion is saturated, the flow path of the connection pipe is changed to separate the adsorption tower containing only the saturated adsorbent. The method according to claim 1,
A branch supply pipe formed between the adsorption processing section and the supply pipe and branching from the supply pipe,
Further comprising a branch discharge pipe formed between the adsorption processing unit and the discharge pipe and branched from the discharge pipe,
The supply control valve is formed in the branch supply pipe, the discharge control valve is formed in the branch discharge pipe,
Wherein the branch supply pipe and the branch discharge pipe are connected to one end of each of the adsorption towers, and the connection pipe is connected between the other ends of the adsorption towers different from each other. The method according to claim 6,
Each of the adsorption towers is arranged in a first direction from the branch supply pipe toward the connection pipe,
Wherein the gas is selectively passed from the connection pipe toward the branch discharge pipe in a second direction opposite to the first direction. The method according to claim 1,
At least three of the adsorption towers include a first adsorption tower, a second adsorption tower, and a third adsorption tower arranged in parallel with each other,
The connection pipe includes a first connection pipe connecting the first adsorption column and the second adsorption column, a second connection pipe connecting the second adsorption column and the third adsorption column, and a second connection pipe connecting the third adsorption column and the second adsorption column, 1 < / RTI > adsorption columns,
Wherein the connection control valve is formed in each of the first connection pipe, the second connection pipe, and the third connection pipe. 9. The method of claim 8,
Wherein the connection control valves of each of the first connection pipe, the second connection pipe, and the third connection pipe are sequentially opened and the remaining unopened ones are closed. The method according to claim 1,
A sensor unit installed on the supply pipe, the discharge pipe, and the connection pipe to measure the concentration of the pollutant;
Further comprising a control unit for adjusting at least one of the connection control valve, the supply control valve, and the discharge control valve according to the concentration measurement value of the sensor unit. 11. The method of claim 10,
When the difference between the concentration measurement value of the supply pipe and the concentration measurement value of the connection pipe and the concentration measurement value of the treated gas is less than a reference value, the control unit adjusts the connection control valve to change the flow path, And separates the adsorption tower between the supply pipe and the connection pipe. 11. The method of claim 10,
The control unit adjusts at least one of the connection control valve, the supply control valve, and the discharge control valve to disconnect any one of the adsorption towers connected to each other, reconnect the remaining adsorption towers to the other adsorption towers, And reversing the flow direction of the gas passing through the remaining adsorption towers in a direction opposite to that before the reconnection. The method according to claim 1,
An adsorbent input portion formed at an upper end of the adsorption tower, and
And an adsorbent discharge unit formed at a lower end of the adsorption column. 14. The method of claim 13,
Wherein the adsorbent input portion includes an injection portion formed at an upper end of the adsorption tower,
Wherein the adsorbent discharge portion includes a bevel opening / closing portion that is opened and closed with a bottom surface of the adsorption tower being inclined. The method according to claim 1,
And a fluid injecting unit for injecting fluid into the adsorption column to increase pressure. (a) selectively connecting at least two of the adsorption towers by controlling a flow path between the adsorption towers by connecting portions formed between at least three adsorption towers;
(b) supplying the gas before treatment to any one of the adsorption towers connected to each other by the connection portion, sequentially passing the gas to at least two adsorption towers connected to each other, and discharging the treated gas from the other one of the adsorption towers connected to each other step; And
(c) separating any one of the at least two adsorption towers connected to each other by changing the flow path between the adsorption towers by the connection portion, and selectively connecting at least two of the adsorption towers excluding the separated adsorption towers among the at least three adsorption towers Wherein the adsorbent is adsorbed to the adsorbent. 17. The method of claim 16,
Wherein at least a part of the adsorbent contained in any one of the adsorption towers connected to each other by the connection portion is maintained in an unsaturated state. 17. The method of claim 16,
Wherein the adsorbent contained in the adsorption tower at the rearmost end of the adsorption towers connected to each other by the connecting portion maintains at least a part of the adsorbent located on the exhaust side in an unsaturated state. 17. The method of claim 16,
Wherein the separated adsorption tower among at least two adsorption towers connected to each other in the step (c) comprises only a saturated adsorbent. 17. The method of claim 16,
The step (c) is performed when the difference between the concentration of the pollutant in the gas before treatment, the concentration of the pollutant in the gas passing through the adsorption tower, and the concentration of the pollutant in the treated gas becomes less than the reference value A method for treating contaminants in a multi-stage adsorption treatment apparatus. 17. The method of claim 16,
Wherein each of the adsorption towers is connected to a connection pipe for selectively connecting one of the supply pipe for supplying the gas before the treatment and the discharge pipe for discharging the gas after the treatment to the one end, Lt; / RTI > 22. The method of claim 21,
Each of the adsorption towers is disposed in a first direction from one end of the supply pipe to the other end to which the connection pipe is connected,
Wherein the gas is selectively passed from the other end to which the connection pipe is connected to the one end to which the discharge pipe is connected and in a second direction opposite to the first direction. 17. The method of claim 16,
In the step (c), any one of the adsorption towers connected to each other is separated, and the remaining adsorption tower is reconnected to the other adsorption tower, and the flow direction of the gas passing through the remainder of the adsorption tower is reversed A method for treating contaminants in an inverted multi-stage adsorption treatment apparatus.

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