JP4256529B2 - Separation apparatus and method for activated carbon - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an activated carbon separation apparatus and method for separating activated carbon used for water treatment and the like from calcium-based particles and the like.
[0002]
[Prior art]
Activated carbon that performs water treatment by mixing fine-grained coal and calcium-based particles such as calcium carbonate is known.
By the way, the activated carbon is recovered from the market and regenerated when the processing capacity is lost. Conventionally, a recycling plant has adopted a method in which a recycling material in a state where fine-grained coal and calcium-based particles are mixed is directly put into a regeneration furnace. The fine coal mixed with the calcium-based particles taken out from the regeneration furnace is separated from the calcium-based particles with a sieve.
[0003]
[Problems to be solved by the invention]
However, the regenerated activated carbon in which the regenerated material in the mixed state is directly regenerated in a regenerative furnace and the calcium-based particles are separated by sieving is treated as activated carbon by increasing the amount of calcium-based particles mixed in the particle size. In addition to the reduced ability, the mixed calcium-based particles cannot be reused, increasing costs.
[0004]
The present invention has been made in view of the above-described problems of the prior art, and an object to be solved is to provide an activated carbon separation apparatus and method in which the amount of calcium-based particles mixed is as small as possible.
[0005]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the inventors of the present invention have made various studies, paying attention to the difference between the density of activated carbon and the density of calcium-based particles, and a recycling material in a state where fine-grained charcoal and calcium-based particles are mixed. The present invention has been completed on the assumption that it can be separated by mixing with water and stirring.
[0006]
That is, the activated carbon separation device of the present invention is an activated carbon separation device for separating a regeneration material in a state where used fine coal and calcium-based particles are mixed, and the regeneration material and water are input. A slurry forming means for forming a slurry in which the fine coal and the calcium-based particles are dispersed, a cylindrical container portion in which the slurry from the slurry forming means flows in a tangential direction so as to swirl, and the cylindrical container portion A separation means having a fine carbon recovery part provided on the upper side and a calcium particle take-out part provided on the lower side of the cylindrical container part, the cylindrical container part flowing in a tangential direction; And a stirring means for assisting the swirling motion of the slurry .
[0007]
In addition, the activated carbon separation method of the present invention is a method for separating activated carbon that separates a recycled material in a state where used fine coal and calcium-based particles are mixed, and the recycled material and water are input. A slurry forming step in which the fine coal and the calcium-based particles are dispersed, and the slurry generated in the slurry forming step is swirled in a tangential direction in a cylindrical container portion by a stirring step. A separation step of recovering the charcoal from the upper side of the cylindrical vessel portion and recovering the calcium-based particles from the lower side of the cylindrical vessel portion , wherein the agitation step comprises a swirling motion of the slurry flowing in the tangential direction; It is characterized by assisting .
[0008]
[Action]
In the activated carbon separation apparatus and separation method of the present invention, a regenerated material in a state where used fine coal and calcium-based particles are mixed is mixed with water to obtain a fluid slurry. Here, the fine coal and calcium-based particles in the slurry need to be in a state in which individual particles are separated from other particles. That is, each particle is dispersed independently in a large amount of water. Next, this slurry is caused to flow into the cylindrical container portion of the separating means so as to swivel in the tangential direction. Due to the swirling motion of the slurry, the fine coal floats on the upper side of the cylindrical container due to the specific weight difference between the density of the fine coal and calcium-based particles and the density of water, and the calcium-based particles fall on the lower side of the cylindrical container. To settle. That is, fine coal and calcium-based particles are separated, and the amount of calcium-based particles mixed into the fine coal used for regeneration can be reduced.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
In the activated carbon separation apparatus of the present invention, it is preferable that the slurry forming means is provided with a pump that continuously supplies water and a regenerating material to a container to make a slurry. In addition, a container is not required when slurry can be formed only with a pump. This pump preferably contributes to the slurrying of the recycling material and has the ability to perform the function of rotating the slurry supplied to the cylindrical container part of the separating means in the cylindrical container part.
[0010]
Separation means is for separating the fine coal and calcium-based particles dispersed in the slurry from the slurry forming means according to the specific weight difference between the fine coal and the density of the calcium-based particles and the density of water, From the cylindrical container part into which the slurry from the slurry forming means flows, the fine coal recovery part floating above the cylindrical container part, and the calcium-based particle take-out part settled below the cylindrical container part Can be configured.
[0011]
The slurry flowing into the cylindrical container part is preferably swirling in the cylindrical container part in order to separate fine coal and calcium-based particles. For this reason, it is preferable that the slurry flowing into the cylindrical container portion from the slurry forming means is pumped to the cylindrical container portion. The above pump can be used as means for pumping the slurry. This pump preferably allows the slurry to flow in the tangential direction of the cylindrical container portion. The tangential direction may be any position from the diameter position to the tangential position of the cylindrical container portion. The pump is preferably connected to an insertion port formed on the side wall of the cylindrical container portion through a pipe.
[0012]
It is preferable that a stirring means for assisting the swirling motion of the slurry is disposed in the cylindrical container portion. The stirring means can be composed of an electric motor and a fan disposed in the separating means. The fan is preferably located below the level of water filled in the separating means.
The recovery part for recovering the fine coal can be formed as an overflow opening in the upper side wall of the cylindrical container part.
[0013]
A manual or automatic valve can be attached to the extraction part for collecting the calcium-based particles.
The activated carbon and / or calcium-based particles may carry a silver-based sterilizing material.
In the method for separating activated carbon of the present invention, it is preferable that in the slurry forming step, water and a regenerating material are continuously supplied to a container and stirred. Water is preferably used in a large amount with respect to the material for recycling, whereby the fine coal and calcium-based particles are easily dispersed. Moreover, a pump etc. can be used for stirring.
[0014]
In the separation step, the slurry obtained in the slurry formation step is stirred in a swirl motion form, and the fine coal is suspended above the water due to the specific weight difference between the fine coal and calcium-based particles with respect to the water. It is allowed to settle below the water. Then, fine coal suspended on the upper side and calcium-based particles settled on the lower side are separated and collected.
[0015]
【Example】
Hereinafter, the apparatus and method for separating activated carbon according to the present invention will be specifically described with reference to the drawings. Basic Embodiment FIG. 1 is a schematic view showing the principle configuration of the apparatus of the present invention. In this separation apparatus, a regenerating material and water in which used fine coal and calcium-based particles are mixed are put. The slurry forming means 2, the separating means 1 into which the slurry flowing out from the slurry forming means 2 flows, and the pressure feed passage 3 connecting the slurry forming means 2 and the separating means 1 are configured.
[0016]
The slurry forming means 2 is composed of a general container-like stirring device 16 that disperses the recycled material and water that have been charged.
The pumping passage 3 is a pump 11 that pumps the slurry of the regenerating material dispersed in the stirring device 16 to the suction separating means 1, and a suction disposed between the suction side of the pump 11 and the slurry forming means 1. It is composed of a side pipe 15, a discharge side pipe 9 disposed between the discharge side of the pump 11 and the separating means 1, and a valve 12 installed in the discharge side pipe 9.
[0017]
The supply amount of the pump 11 in the pressure feed passage 3 is 90 liters per minute, and has the ability to feed the slurry to the separation means 1 to make a swiveling motion.
The separating means 1 is composed of a cylindrical container portion 4 whose lower side is constricted conically. A recovery port 5 for recovering fine coal is formed in the relatively upper side wall of the cylindrical container part 4, and the slurry from the slurry forming means 2 is inserted into the intermediate side wall of the cylindrical container part 4. A port 6 is formed, and a take-out port 7 for collecting calcium-based particles is formed at the lower portion of the cylindrical container portion 4 which is constricted. A conduit 8 for guiding fine coal to a recovery container (not shown) is connected to the recovery port 5, a discharge side pipe 9 of the pressure feed passage 3 is connected to the insertion port 6, and a valve 10 is connected to the extraction port 7. ing.
[0018]
The insertion port 6 is formed toward the tangential direction of the cylindrical container part 4 so that the slurry discharged from the pumping passage 3 swivels within the cylindrical container part 4.
Further, the separation means 1 is provided with an electric motor 13 and a fan 14 that constitute stirring means. The fan 14 is installed at substantially the same position as the insertion port 6 and is set to rotate at the same or higher speed than the rotational speed of the supply amount of the pump 11.
[0019]
The method for separating activated carbon according to the present invention is to separate the regenerated material in a state where used fine coal and calcium-based particles are mixed into fine coal and calcium-based particles by the separation apparatus having the above configuration.
In the separator in the operating state, the stirring device 16, the pump 11, and the motor 13 of the cylindrical container portion 4 are in an operating state. In addition, the valve 10 of the separating means 1 is closed. In this operating state, the recycling material and water in a state where fine coal and calcium-based particles collected from the market are mixed are put into the stirring device 16 of the slurry forming means 2. As a result, water is stirred in the stirrer 16, and by this stirring action, the recycled material that has been charged is dispersed into fine coal and calcium-based particles to become a slurry.
[0020]
The slurry of the regeneration material is sucked by the pump 11 and flows into the cylindrical container portion 4. Then, the slurry that has flowed into the cylindrical container portion 4 performs a swiveling motion within the cylindrical container portion 4 based on the pumping force by the pump 11. Since the fan 14 is rotated by the electric motor 13, this turning motion is further strengthened, and the dispersed fine coal and calcium-based particles can be further dispersed.
[0021]
Here, fine coal has a density lower than that of water, so it floats on the upper side of the cylindrical container part 4, and calcium-based particles settle on the lower side of the cylindrical container part 4 because of its density higher than that of water. Thus, the fine coal is collected on the upper side of the cylindrical container part 4 and the calcium-based particles are collected on the lower side and separated.
Fine coal collected on the upper side is recovered from the recovery port 5 of the cylindrical container portion 4 into the recovery container together with water through the conduit 8 by overflow. In addition, when a certain amount of calcium-based particles that have settled down is accumulated, the valve 10 is opened to collect the calcium-based particles together with water in a separate collection container. Even when the valve 10 is opened, the separation device can be in an operating state, and the slurry in the stirring device 16 is continuously supplied to the cylindrical container portion 4 via the pressure feeding passage 3, and fine coal is always collected on the upper side. The state where calcium-based particles gather on the lower side is cultivated.
[0022]
Thus, in the separation apparatus of the present principle configuration, the activated carbon can be recovered with almost no mixture of calcium-based particles.
The valve 12 can be closed simultaneously with the stop of the pump 11 when the operation of the separating means 1 is stopped. Thereby, when the separation operation is stopped, it is not necessary to separate the slurry forming means 2 and the separation means 1.
[0023]
Specific Example Next, a practical example will be described with reference to FIG. FIG. 2 is a schematic view showing an actual installation state of the cylindrical container portion 4 of the separating means 1, and the slurry forming means 2 is omitted. In FIG. 1, elements that are the same as those in FIG.
As shown in FIG. 2, the cylindrical container portion 4 of the separating means 1 is installed on the third floor of the three-story installation base 17 with the conical lower part slightly protruding into the second floor space, and the ceiling of the third floor space. An electric motor 13 is fixed on the plate by extending the rotation shaft into the cylindrical container portion 4. A fan 14 is attached to the rotating shaft.
[0024]
On the second floor, a calcium-based particle recovery container 18 and an activated carbon recovery container 19 are arranged side by side. The calcium-based particle recovery container 18 is located below the cylindrical container part 4, and the valve 10 disposed at the lower part of the cylindrical container part 4 faces the opening of the upper surface of the recovery container 18, so that the calcium-based particle recovery container 18 falls from the cylindrical container part 4. Receives calcium-based particles. The valve 10 can be automatically opened and closed by a predetermined actuator 24.
[0025]
The activated carbon recovery container 19 is installed under the opening of the conduit 8 and receives fine coal and water overflowing from the cylindrical container part 4.
By the way, the calcium-based particle collection container 18 and the activated carbon collection container 19 are provided with filtration filters 20 and 21 each serving as a bottom lid at the bottom. The filtration filters 20, 21 discharge water, and the water filtered from the filtration filters 20, 21 is collected in the pool 22 and returned to the slurry forming means 2 through the water distribution pipe 23. ing.
[0026]
The separation apparatus having the above configuration can also separate activated carbon and calcium-based particles by the separation method of the present invention. The calcium-based particles are stored in the recovery container 18 and the activated carbon is stored in the recovery container 19. And when these calcium type particle | grain collection containers 18 and activated carbon collection containers 19 become full, they can be transferred as they are and sent to a recycling plant.
Further, according to the separation apparatus having the configuration shown in FIG. 2, water mixed with the regenerating material can be circulated and used.
[0027]
【The invention's effect】
As described above, according to the present invention, the activated carbon can be converted into calcium with almost no mixing of calcium-based particles by simply putting the calcium-based particles recovered from the market and activated carbon in a mixed state as a regenerating material. It can be separated from system particles.
[Brief description of the drawings]
FIG. 1 is a configuration diagram showing a principle configuration of the present invention.
FIG. 2 is a block diagram showing an embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Separation means, 2 ... Slurry formation means, 3 ... Pressure feed passage, 4 ... Cylindrical container part, 5 ... Recovery port (recovery part), 6 ... Insertion port, 7 ... Extraction port (extraction part), 11 ... Pump, 12 ... Valve, 18 ... Recovery container, 19 ... Activated carbon recovery container.

Claims (2)

A separator for activated carbon that separates a recycling material in a state where used fine coal and calcium-based particles are mixed,
Slurry forming means for making a slurry in which the regeneration material and water are charged and the fine coal and the calcium-based particles are dispersed;
A cylindrical container part that flows in a tangential direction so that the slurry from the slurry forming means swirls, a recovery part of the fine coal provided on the upper side of the cylindrical container part, and a lower side of the cylindrical container part Separating means having an extraction part for the calcium-based particles obtained,
In the separation apparatus of activated carbon provided with the,
2. The activated carbon separator according to claim 1, wherein the cylindrical container portion has a stirring means for assisting the swirling motion of the slurry that has flowed in the tangential direction . A method for separating activated carbon that separates a recycling material in a state where used fine coal and calcium-based particles are mixed,
A slurry forming step in which the regenerating material and water are charged and the fine coal and the calcium-based particles are dispersed;
The slurry produced in the slurry forming step is swirled in the tangential direction in the cylindrical container portion by a stirring step to collect the fine coal from the upper side of the cylindrical container portion, and the calcium-based particles are collected in the cylindrical container portion. A separation step to recover from the lower side;
A method of separating activated carbon provided with the
The method for separating activated carbon, wherein the stirring step assists a swirling motion of the slurry that flows in a tangential direction .

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