KR0178112B1 - Method and apparatus for ingecting of activated carbon to water purification plant - Google Patents

Abstract

[purpose]

In the water treatment plant, when activated carbon is supplied to the hopper, the activated carbon is prevented from scattering outside the hopper, the amount of activated carbon required for water quality improvement is accurately measured, and the water supply into the dissolution tank is automatically supplied to the concentration of the activated carbon dissolved liquid. It is to provide a method and a supply device for activated carbon in a water purification plant, which can make the supply of activated carbon continuously by automatic control.

[Configuration]

Container; A hopper having an upper side connected to a lower side of the container; A blower connected to the upper side of the hopper for sucking and transporting activated carbon in the container to the hopper; Two dissolution tanks provided in the lower portion of the hopper for dissolving activated carbon in the hopper in water; A water level sensor for sensing the water level in the dissolution tank; A screw conveyor installed between the hopper and the dissolution tank for selectively transferring activated carbon in the hopper to the two dissolution tanks; Two electronic switching valves installed on the water inflow side and the activated carbon solution discharging side of the dissolution tank to control the inflow of water and the discharge of the activated carbon solution; A distribution tank installed on the discharge side of the dissolution tank for distributing and discharging activated carbon dissolved liquid discharged from the dissolution tank to each mixed paper; A flow meter and a flow regulating valve installed between the discharging side of the dissolution tank and the dispensing tank to control the amount of activated carbon dissolved in the dispensing tank; A predetermined amount of activated carbon is introduced into the hopper by the blower, and activated carbon in the hopper is transferred into one dissolution tank by a screw conveyor and dissolved in water in the dissolution tank. It is supplied to each mixed paper through, and while the activated carbon dissolved in the one dissolution tank is discharged, the activated carbon dissolved in the other dissolution tank is stored in the storage atmosphere and all the activated carbon dissolved in the dissolved tank is discharged. It is released at the same time, it is to supply activated carbon continuously to the mixed paper by repeating the above process.

Description

Method and device for supplying activated carbon in water purification plant

1 is a schematic diagram of an activated carbon supply apparatus for explaining the present invention.

2 is a cross-sectional view of the activated carbon suction nozzle in the present invention.

3 is a conceptual diagram illustrating a conventional activated carbon supply apparatus.

* Explanation of symbols for main parts of the drawings

1: container 2: tilt

4: controller 6: activated carbon suction nozzle

7: Hopper 8: Filter

9: connection hose 11: blower

13: air compressor 14: timing valve

19: Screw Conveyor 21,21 ': Melting Tank

23,23 ': motor 27,27': discharge pipe

28,28 ': Electronic switching valve 30: Distribution tank

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for continuously supplying activated carbon to a mixed paper and a supply apparatus thereof in a water purification plant.

A water purification plant is a facility that produces tap water for general household use, and the process of injecting activated carbon into raw water is an essential process for any water purification plant.

In addition, when injecting activated carbon into raw water, the input amount must be appropriately adjusted according to the condition of the raw water, and the input time must be maintained continuously.

3 is a schematic diagram of a conventional activated carbon supply apparatus and its configuration is as follows.

Reference numeral 100 is a hopper provided with a base B of a predetermined height. An inlet 101 for injecting activated carbon into the hopper 100 is formed at an upper portion of the hopper 100, and the inlet 101 is an opening and closing tube 102 fixed to the upper portion of the hopper 100 by a hinge. It can be opened and closed by). Reference numeral 103 is a bar screen provided on the upper inner side of the hopper 100, and reference numeral 110 is a vibrator provided on the side of the hopper 100. The reference numeral 120 is a dust collector connected to the upper inside of the hopper, the reference numeral 130 is a motor provided in the upper center of the hopper 100, and the reference numeral 140 is installed in the hopper 100 so as to be rotatable. It is the discharge | wing blade which rotates by 130. In addition, the reference numeral 150 is a screw conveyor connected to the lower discharge side of the hopper 100, the reference number 160 is a dissolution tank connected to the discharge side of the screw conveyor 150, and the reference number 170 is a dissolution tank ( 160 is a distribution tank connected to the axle side.

The process of continuously supplying activated carbon to the mixed paper by the conventional activated carbon supply apparatus as described above is as follows.

A predetermined amount of activated carbon is introduced into the hopper 100 through an inlet 101 provided on the upper side of the hopper 100 in a state in which a predetermined amount of water is filled in the dissolution tank 160 and the dust collector 120 is operated. When a predetermined amount of activated carbon is filled in the hopper 100, the operation of discharging activated carbon is stopped and the motor 130 and the vibrator 110 are operated to discharge the activated carbon in the hopper 100 to the screw conveyor 150 and the screw conveyor 150. When the activated carbon is filled in the), the screw conveyor 150 is operated to discharge the activated carbon into the dissolution tank 160. Subsequently, when all of the activated carbon is dissolved in the dissolution tank 160, the activated carbon dissolved solution in the dissolution tank 160 is discharged to the distribution tank 170 and supplied to each mixed paper (not shown). Then, the amount of activated carbon supplied is checked by checking the rotation speed of the screw of the screw conveyor 150, and the amount of water filled in the dissolution tank 160 is determined by the flow meter 161 installed at the side of the dissolution tank 160. Check and check.

Therefore, in the conventional activated carbon supply apparatus as described above, since the supply of activated carbon is proportionally measured according to the rotational speed of the screw of the screw conveyor 150, an error occurs and it is difficult to quantitatively control the supply of activated carbon, and it is dissolved manually. Since water is supplied to the tank and the amount is measured, there is a problem that the concentration of the activated carbon dissolving liquid is not constant because the ratio of the amount of activated carbon and the amount of dissolved water varies depending on the surrounding conditions. In addition, the conventional activated carbon supply apparatus is provided with a dust collector so as to be connected to the upper side of the hopper, but since activated carbon to be injected into the hopper is in a bag, the activated carbon is scattered to the outside of the hopper when the activated carbon is introduced into the hopper. There is a problem such as polluting the environment and poor working conditions due to dust generated when handling the bag, avoid work and neglect management. In addition, since the supply of activated carbon cannot be automatically and continuously supplied, at least two or more activated carbon supply devices must be provided in order to supply activated carbon continuously.

The present invention, in order to solve the conventional problems as described above, when supplying activated carbon to the hopper to prevent the scattering of activated carbon to the outside of the hopper, while accurately measuring the amount of activated carbon required for water quality improvement while dissolving tank It is an object of the present invention to provide a method and a supply apparatus for activated carbon in a water purification plant, which automatically supplies water to a furnace so that the concentration of the activated carbon dissolving liquid is constant, and the activated carbon can be continuously supplied by automatic control.

The activated carbon supply method of the purified water plant provided by the present invention includes a suction step of sucking activated carbon in a container into a hopper by a suction force of a blower; A transfer step of selectively transferring activated carbon in the hopper to two activated carbon dissolution tanks; A dissolution step of dissolving activated carbon in the dissolution tank; A distribution delivery step of distributing and discharging the activated carbon dissolved liquid in the dissolution tank to each mixed paper; It is a standby step of transferring the activated carbon to the other dissolution tank by the same suction step and the transfer step during the dispensing step of discharging and waiting for dissolution.

Activated carbon supply method of a water purification plant provided by the present invention, the container; A hopper having an upper side connected to a lower side of the container; A blower connected to the upper side of the hopper for suction transport of activated carbon in the container to the hopper; Two dissolution tanks provided in the lower portion of the hopper for dissolving activated carbon in the hopper in water; A water level sensor for sensing the water level in the dissolution tank; A screw conveyor installed between the hopper and the dissolution tank to selectively transfer the two dissolution tanks in the activated carbon in the hopper; Two electronic opening and closing valves installed at the water inlet side and the activated carbon solution discharging side of the dissolution tank to control the inflow of water and the discharge of the activated carbon dissolution solution; A distribution tank connected to the discharge side of the dissolution tank for distributing and discharging activated carbon dissolved in the dissolution tank to each mixed paper; Consists of a flow meter and a flow control valve installed between the discharge side of the dissolution tank and the dispensing tank to control the amount of activated carbon dissolved in the dispensing tank.

In the present invention as described above, a predetermined amount of activated carbon is introduced into the hopper by the suction force of the blower, the activated carbon in the hopper is transferred into one dissolution tank by a screw conveyor and dissolved in the water in the dissolution tank, and then the opening and closing valve and flow rate control. It is supplied to each mixed paper through a side and a distribution tank, while activated carbon dissolved in the other dissolved tank is stored and stored in the other dissolved tank while the activated carbon dissolved in the one dissolved tank is discharged. All of the liquids are discharged and discharged at the same time, and the activated carbon is continuously supplied to the mixed paper by repeating the above process.

Preferably, an activated carbon suction nozzle is installed at the discharge shaft of the container and the activated carbon inlet side of the hopper, and the activated carbon suction nozzle has an outer tube inserted into the outer side of the inner tube and an air passage formed between the inner and outer tubes. It is configured to open only to one end of the outer pipe and the check valve is installed on the outer pipe, inserting the open side into the container and connecting the closed side to the hopper side, to enable the inflow of air into the container, the hopper is It is mounted on the weighing scale to control the amount of activated carbon sucked into the hopper by the weight to be improved in the weighing scale. In addition, the inside of the hopper by installing a filter on the upper side of the activated carbon inlet air from the activated carbon and the air flowing into the hopper through the filter to the blower side and the activated carbon is blocked by the filter to the blower side, the filter upper The inside of the hopper is connected to the compressor to drop off the activated carbon filtered in the filter by the high pressure air ejected from the compressor. In addition, the stirring tank is provided with a stirring means, the stirring means is composed of a stirring blade rotatably installed in the melting tank, and a motor for driving the stirring blade.

Hereinafter, a specific embodiment of the present invention will be described in detail with reference to the drawings.

1 is a schematic view for explaining the activated carbon supply apparatus according to the present invention. Reference numeral 1 denotes a container in which activated carbon is filled in a large amount, and the container 1 is mounted on the mounting table 2a of the tilt 2. One side of the loading table 2a of the tilt 2 can be lifted up and down by the cylinder 2b provided in the lower part, and the oil pump 3 for operating this cylinder 2b. In addition, a limit switch operating interval 2c is provided at one end of the mounting base 2a, and a limit switch for limiting the inclination limit of the mounting base 2a is provided below the limit switch operating interval 2c. 2d) is installed. The oil pump 3 is controlled by the controller 4 according to the output signal of the limit switch 2d.

When the oil pump 3 is operated to extend the cylinder 2b by the above configuration, one side of the container 1 mounted on the mounting table 2a of the tilt 2 is raised, and the whole of the container 1 is inclined. When the container 1 is inclined by a predetermined inclination and the limit switch operation period 2c operates the limit switch 2d, the controller 4 receiving the output signal of the limit switch 2d receives an oil pump. The operation of (3) is stopped to fix the container 1 to a predetermined inclined state.

Reference numeral 5 is an electron-opening valve installed at one side lower discharge side of the container 1, and reference numeral 6 is an activated carbon suction nozzle. As shown in FIG. 2, the activated carbon suction nozzle 6 has an outer tube 6b inserted into an outer side of the inner tube 6a, and an air passage 6c between the inner and outer tubes 6a and 6b. The air passage 6c is open only to one end between the inner and outer pipes 6a and 6b, and the other end is closed. The inner tube 6a is further extended from the closed portion side of the air passage 6c, and a quick cup ring 6d is coupled to the outer periphery of the distal end of the air passage 6c. The outer tube 6b is provided with a check valve 6e that allows only air flow from the outside to the air passage 6c. In the activated carbon suction nozzle 6 configured as described above, the opening side of the air passage 6c is inserted into the container 1 through the electron opening and closing edge 5.

With the above configuration, when suction force is applied to the outside of the container 1 through the activated carbon suction nozzle 6, air is directed toward the container 1 through the air passage 6c formed in the activated carbon suction nozzle 6. Since it is supplied, the activated carbon in the container 1 is smoothly discharged through the inner tube 6a of the activated carbon suction nozzle 6.

Reference numeral 7 denotes a hopper, and reference numeral S denotes a weighing scale for measuring the amount of activated carbon filled in the hopper 7. The hopper 7 is provided with a filter 8 near the inner upper side, and the inside of the hopper 7 under the filter 8 is connected with the activated carbon suction nozzle 6 as a connecting hose 9. The inside of the hopper 7 above the filter 8 is in communication with the blower 11 as a connecting hose 9 and in communication with the air compressor 13 as another connecting hose 9. In the middle of the connecting hose (9), a timing valve (14) for instantaneously delivering compressed air at regular time intervals, a decompression valve (15) for reducing the discharged air pressure above a predetermined pressure, and foreign substances in the air to be filtered are filtered. An air filter 16 is provided for this purpose. Moreover, the differential pressure in the hopper 7 above and below the filter 8 can be detected by the differential pressure detector 17 connected to the upper and lower sides of the filter 8, so that the differential pressure detector 17 The blower 11 and the air compressor 13 are controlled by differential pressure detection. Reference numeral 18 is a rotary valve provided in the lower discharge portion of the hopper 7.

Reference numeral 19 is a screw conveyor provided on the lower side of the hopper 5. This screw conveyor 19 is comprised from the guide cylinder 19a, the screw 19b rotatably provided in the inside of the guide cylinder 19a, and the motor 19a for driving this screw 19b. . The screw conveyor 19 as described above is arranged to be perpendicular to the hopper 7 at the lower side of the hopper 7 so that the middle portion of the longitudinal side of the guide cylinder 19a and the discharge side of the hopper 7 and the flexible connector 20 And both longitudinal ends of the guide cylinder 19a are connected to dissolution tanks 21 and 21 'for dissolving activated carbon in dissolved water, respectively.

Reference numerals 22 and 22 'are stirring blades rotatably installed in the respective dissolution tanks 21 and 21', and the stirring blades 22 and 22 'are upper portions of the dissolution tanks 21 and 21'. It can be driven by the motors 23 and 23 'provided in the. The reference numerals 24 and 24 'are installed on the upper portions of the respective dissolution tanks 21 and 21' to detect the water level in the dissolution tanks 21 and 21 '. Reference numerals 25 and 25 'are water supply pipes connected to the upper inlets of the respective dissolution tanks 21 and 21', and the water level detection sensors 24 and 24 'are located in the middle of the water supply pipes 25 and 25'. Electromagnetic openings 28 and 28 'for controlling the flow of the melted water supplied to the dissolution tanks 21 and 21' by means of this. Reference numerals 27 and 27 'are discharge pipes connected to the lower discharge portions of the respective dissolution tanks 21 and 21', and activated carbon discharged from the dissolution tanks 21 and 21 'in the middle of these discharge pipes 27 and 27'. Electronic switching valves 28 and 28 'are provided for controlling the discharge of the dissolving liquid, and the discharge pipes 27 and 27' are connected to each other. Further, the discharge pipes 27 and 27 'are connected to the distribution tank 30 as the connecting pipe 29, and in the middle of the connecting pipe 29, a flow meter 31 for controlling the discharge of activated carbon dissolved solution and The flow regulating valve 32 is provided. In addition, the distribution tank 30 is connected to the mixed paper (not shown). Reference numeral 33 is a recovery pipe connected to the upper side of the dissolution tanks 21 and 21 ', and reference number 34 is a water supply source connected to the water supply pipes 25 and 25'.

Each component of the present invention configured as described above is configured to be operated sequentially by a central controller (not shown).

Hereinafter, an operation process for supplying activated carbon by the present invention configured as described above will be described.

First, when the oil pump 3 is operated by the controller 4 in the state in which the container 1 filled with activated carbon is loaded on the mounting table 2a of the tilt 2, the cylinder 2b is extended so that the container ( 1) is inclined, and when the container 1 is inclined to a predetermined angle, the limit switch operating interval 2c provided on one side of the mounting table 2a operates the limit switch 2d. At the same time, since the operation of the oil pump 3 is stopped by the controller 4 receiving the output signal of the limit switch 2d, the container 1 mounted on the mounting table 2a is inclined at a predetermined angle. It is fixed in a state. Subsequently, when the central controller (not shown) sets the amount of activated carbon to be weighed into the hopper 5 in the weighing scale clock and starts the auto start, the electronic switch valve 17 on one side opens and the dissolution tank on one side. Melted water flows into (21). When the water tank 21 is full, the electronic switching valve 17 is closed by the detection of the water level sensor 24. When the water dissolving tank 21 is full, the air compressor 13 is automatically operated to maintain a pressure of 6-7 kg / cm 2 by its own pressure switch, and 5-6 kg / cm 2 by the pressure reducing valve 15. The blower 11 is operated after the air compressor 13 is operated for a predetermined time (about 60 seconds) while maintaining the discharge pressure. As the blower 11 operates and the timing valve 14 operates, the activated carbon suction preparation is completed.

When the activated carbon suction preparation is completed, the central controller detects the indication value of the differential pressure indicator 7 and opens the electronic switching valve 5 when the indication value is 150 mmAQ or less. As such, when the opening / closing edge 5 is opened, activated carbon in the container 1 is introduced into the hopper 7 through the activated carbon suction nozzle 6 and the connection pipe 9 by the suction force of the blower 11. At this time, air is introduced into the container 1 through the check valve 6e and the air passage 6c of the activated carbon suction nozzle 6, so that the activated carbon in the container 1 moves smoothly together with the air to the hopper 7 side. Will be transferred. At this time, the air inflow into the container 1 is made only while the activated carbon is moved to the hopper 7 side, so that the moisture in the air supplied into the container 1 is not adsorbed by the activated carbon remaining in the container 1. will be.

As described above, the activated carbon and air introduced into the hopper 7 are separated by the filter 8, and the air is discharged to the blower 11 side through the filter 8, and the activated carbon is blocked by the filter 8 and the hopper 7 Will be filled in). At this time, the activated carbon is adsorbed to the filter 8 in the process of separating the activated carbon and air, but the activated carbon adsorbed to the filter 8 flows from the upper part of the filter 8 to the lower part through the timing valve 14. Since it is continuously shaken by the blowable compressed air ejected at regular time intervals, the separation action of the activated carbon and air flowing into the hopper 7 proceeds continuously. However, when the moisture content of the activated carbon introduced into the hopper 7 is large, activated carbon is adsorbed to the filter 8 so that the differential pressure before and after the filter 8 becomes large and is introduced into the hopper 7 in inverse proportion to the differential pressure. The amount of activated carbon decreases gradually. At this time, when the differential pressure before and after the filter 8 becomes equal to or greater than the set pressure (about 200 mmAQ), the blower 11 is stopped, and only the air compressor 13 and the timing valve 14 for a predetermined time (about 5-10). Minutes) and then blow off the activated carbon adsorbed to the filter 8, the blower 11 is restarted. The above operation is continued until the weight set point of the activated carbon filled in the hopper 7 is reached. Subsequently, it continues until the weight set value of the activated carbon filled in the hopper 7 is reached. Subsequently, when the weight of the activated carbon filled in the hopper 7 reaches the set value, the blower 11 is stopped by the signal output from the weighing scale S. After the blower 11 is stopped, only the air compressor 13 and the timing valve 14 are operated for a predetermined time (about 5-10 minutes) to completely remove the activated carbon from the filter 8 and smoothly the next reprocessing process. To be.

When the process of adding activated carbon to the hopper 7 is completed, the rotary valve 20 and the motors 19c and 23 provided on the discharge side of the hopper 7 are simultaneously operated. By the above operation, the activated carbon in the hopper 7 is introduced into the dissolution tank 21 on one side through the guide cylinder 19a of the rotary valve 18 and the screw conveyor 19 and introduced into the dissolution tank 21. Is dissolved in the dissolved water by the stirring action of the stirring blade 22 by the motor 23. And, if the activated carbon is completely discharged from the hopper 7, the rotary valve by the output signal of the measuring well (S) (R) and the screw conveyor 19 are stopped, and after stopping the rotary valve R and the screw conveyor 19, the motor 23 continues to operate for a predetermined time (about 5-10 minutes), The activated carbon solution in the dissolution tank 21 can be used.

Next, when the activated carbon solution is available, the electron-opening and closing valve 28 installed on the discharge side of the dissolution tank 21 is opened so that the activated carbon solution is distributed through the flow meter 31 and the flow control valve 32. 30, and the activated carbon dissolved solution introduced into the distribution tank 30 is distributed according to the number of mixed papers to be dispensed. At this time, the flow rate control valve 32 receives the input amount of the activated carbon dissolved solution determined according to the water quality analysis result from the central controller to control the amount of activated carbon dissolved solution injected into the distribution tank (30).

When the water level of the one side dissolution tank 21 reaches the set value by the continuous use of the activated carbon solution as described above, the dissolved water and the activated carbon are supplied to the dissolution tank 21 'on the other side by the same operation as in the previous process. Activated carbon solution is queued for production. At this time, in the hopper 7, the injection of activated carbon into the other dissolution tank 21 'is possible by rotating the motor 19c of the screw conveyor 19 in reverse.

On the other hand, when all of the activated carbon dissolving liquid of the dissolution tank 21 is discharged, the operation of the motor 23 'installed in the dissolution tank 21 is stopped and at the same time the electromagnetic opening and closing valve 28 installed on the discharging side of the dissolution tank 21. ) Is closed, and then the electron-opening valve 28 'provided at the discharge side of the other dissolution tank 21' on which the activated carbon solution is prepared is opened, and the activated carbon solution is supplied to the mixed paper through the same process as described above. When the water level of the other dissolution tank 21 'reaches the set value, the activated carbon solution is prepared in the dissolution tank 21 through the same process as before, and the operation process as described above is continuously repeated.

The present invention has the following effects since the present invention has the configuration and the function as described above.

In the present invention, since activated carbon in the container is supplied into the hopper by the suction force of the blower, there is no fear of the activated carbon flying out of the hopper while the activated carbon is introduced into the hopper. Therefore, by supplying activated carbon using the present invention, not only there is no fear of contamination of the surrounding environment, but also the working environment of workers can be greatly improved. In addition, the present invention is to install a water level detection document in the dissolution tank to automatically supply a certain amount of dissolved water to the dissolution tank and to measure the exact amount of the activated carbon by the weighing scale, so that the concentration of activated carbon dissolved solution It can be made constant. In addition, since the amount of activated carbon solution required to improve the water quality of the mixed paper is precisely supplied by the flow regulating valve, the activated carbon solution can be efficiently supplied according to the quality of the water. In addition, since the present invention is capable of continuously supplying activated carbon dissolving solution with two dissolution tanks, there is no need to install one or more activated carbon supply devices as in the prior art, and all processes are controlled by sequential control of the central controller. Because it is done, it is able to proactively cope with urgent water change, and its management can be done efficiently.

Claims (7)

A suction step of sucking activated carbon in the container into the hopper by the suction force of the blower; A transfer step of selectively transferring activated carbon in the hopper to two activated carbon dissolution tanks; A dissolution step of dissolving activated carbon in the dissolution tank; A distribution delivery step of distributing and discharging the activated carbon solution in the dissolution tank to each mixed paper; The standby step of transferring the activated carbon to the other dissolution tank and waiting for dissolution by the same suction process and the transfer process during the dispensing and discharging process; the active carbon dissolved liquid in the one dissolution tank is discharged and at the same time the active carbon dissolution in the other dissolution tank A method of supplying activated carbon in a purification plant, in which a liquid is discharged and the activated carbon is continuously supplied to the mixed paper by repeating the above process. Container; A hopper having an upper side connected to a lower side of the container; A blower connected to the upper side of the hopper for sucking and transporting activated carbon in the container to the hopper; Two dissolution tanks provided in the lower portion of the hopper for dissolving activated carbon in the hopper in water; A level sensor for sensing the level in the dissolution tank; A screw conveyor installed between the hopper and the dissolution tank for selectively transferring activated carbon in the hopper to the two dissolution tanks; Two electronic switching valves installed on the water inflow side and the activated carbon solution discharging side of the dissolution tank to control the inflow of water and the discharge of the activated carbon solution; A distribution tank installed on the discharge side of the dissolution tank for distributing and discharging activated carbon dissolved liquid discharged from the dissolution tank to each mixed paper; A flow meter and a flow regulating valve installed between the discharging side of the dissolution tank and the dispensing tank to control the amount of activated carbon dissolved in the dispensing tank; By the blower, a predetermined amount of activated carbon flows into the hopper, and the activated carbon in the hopper is transferred into one dissolution tank by a screw conveyor and dissolved in water in the dissolution tank. It is supplied to each mixed paper, and while activated carbon dissolved in the one dissolving tank is discharged, activated carbon dissolved in the other dissolution tank is stored in the storage tank, and all activated carbon dissolved in the dissolving tank is discharged. The activated carbon supply apparatus of the water purification plant which is discharge | released simultaneously and supplying activated carbon continuously to a mixed paper by repeating the above process. According to claim 2, wherein the discharge shaft of the container and the activated carbon inlet side of the hopper is connected to the activated carbon suction nozzle, the activated carbon suction nozzle, while the outer tube is inserted into the outer side of the inner tube and the air passage formed between the inner and outer tubes Activated carbon in a water purification plant, which opens only to one end of the inner and outer pipes and has a check valve installed on the outer pipe, inserting the open side into the container and connecting the closed side to the hopper side, thereby allowing air to be introduced into the container. Feeder. 3. The activated carbon supply apparatus according to claim 2, wherein the hopper is mounted on the weighing scale to control the amount of activated carbon sucked into the hopper by the weight to be improved in the weighing scale. The method of claim 2, wherein the inside of the hopper is provided with a filter on the upper side of the activated carbon inlet side of the activated carbon and air introduced into the hopper, the air is discharged to the blower side through the filter and the activated carbon is blocked to the blower side by the filter Activated carbon feeder in water purification plant The activated carbon supply apparatus of claim 5, wherein the inside of the hopper at the top of the filter is connected to the compressor to drop off the activated carbon filtered through the filter by the high pressure air ejected from the compressor. The activated tank of any one of claims 1 to 5, wherein the dissolution tank is provided with a stirring means, the stirring means being rotatably installed in the dissolution tank and a motor for driving the stirring wing. Feeder.