JPH06104229B2 - Adsorbent input device in water purification facility - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for introducing an adsorbent such as activated carbon into an adsorption pond at a construction site such as a water purification plant.

[0002]

2. Description of the Related Art Conventionally, when adsorbent is put into an adsorption pond during construction of a water purification plant, a crane 18 which conveys the adsorbent to the adsorption pond 16 is installed on the site as shown in FIG. 5 and FIG. In the pond 16, a scaffold 20 is installed on a trough 19 which is erected several meters above the inner bottom of the adsorption pond 16, and a worker who drops the adsorbent 17 on the scaffold 20 stands by, The crane 18 lifts a high-weight bag 21 filled with the adsorbent 17 and carries it into the upper part of the adsorption pond 16. The adsorbent bag 21 is hung above the head of the worker standing by in the adsorption pond 16 so that the worker can The bottom of the bag 21 is opened manually, and the adsorbent 17 is dropped into the bottom of the adsorption pond below the scaffold 20.

[0003]

As described above, in the conventional case, when the adsorbent 17 is put in, the worker is made to stand by on the scaffold 20 that can be laid horizontally in the adsorption pond 16, and the adsorbent 1 is placed above the scaffold 20.
A heavy bag 21 filled with 7 is hung, and a worker attaches the bag 21 to the adsorbent 16 on a very unstable scaffold 20 installed several meters above the inner bottom. Since the adsorbent 17 is dropped and the work of dropping is performed, not only is there a danger of stepping off the scaffold, but there is a safety problem as well as heavy labor.

Further, when the adsorbent 17 is dropped and thrown in, a large amount of dust rises inside and outside the adsorption pond, and improvement is desired from the viewpoint of the health and hygiene of workers.

[0005]

[Means for Solving the Problems] In order to solve the above problems, the present invention forms a stirring tank which is carried into and installed at a water purification facility site such as a construction site of an adsorption pond, and agitates at an inner bottom portion of the stirring tank. The chamber was formed, an underwater pump was installed, and the adsorbent introduced into the stirring tank was stirred with the stirring water of the stirring water jet nozzle provided on the inner wall of the stirring chamber, and this aqueous solution of the adsorbent was placed in the stirring chamber. The submersible pump is used for suction, and the adsorbent feeding hose extended from the pump to the adsorbent is used to continuously feed the adsorbent into the adsorbent.

[0006]

[Operation] As described above, the adsorbent is put into the stirring tank installed outside the adsorption pond and stirred in the stirring chamber, and is sucked up by the submersible pump installed in the stirring chamber and continuously into the adsorption pond via the adsorbent feeding hose. Since it is injected, not only can the adsorbent injection work be performed very efficiently, but there is also a danger when workers perform the injection work on an unstable scaffold that is placed horizontally in the adsorption pond, and it is harmful to health. The problem of occupational accidents caused by the dust of the adsorbent is drastically solved, and the adsorbent loading work can be performed under a very good working environment in terms of maintenance on site.

Further, it is possible to save labor in the whole work and reduce the construction cost.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment of the present invention will be described below with reference to FIGS. Reference numeral 1 denotes a stirring tank which is carried into a construction site and installed, and the stirring tank 1 has, for example, a box shape and is opened at an upper portion thereof, and the inner bottom portion is dropped downward to have a volume sufficiently smaller than that of the main body portion of the stirring tank 1. In this case, a box-shaped stirring chamber 2 as shown in FIG. 2 is formed.

At this time, as shown in FIG. 3, the inner bottom 3 of the stirring chamber 2 is
It is also possible to form an inverted frustum-shaped chamber by gradually decreasing the slope toward the central part. Although not shown, the stirring tank 1 is formed into a cylindrical shape,
It is also possible to form the stirring chamber 2 in a cylindrical shape or an inverted truncated cone shape.

A submersible pump 4 is installed in the stirring chamber 2. The submersible pump 4 is installed substantially in the center of the stirring chamber 2, and the suction port 4b of the submersible pump 4 is arranged in the stirring chamber 2 and
The discharge port 4a of the submersible pump 4 is arranged in the space inside the stirring tank body, and the adsorbent feeding hose 5 for supplying the adsorbent aqueous solution 15 described later to the adsorption pond 16 is connected to the discharge port 4a.

One or more submersible pumps 4 are installed in the stirring chamber 2. In addition, the inner wall 3 of the stirring chamber 2 has the same stirring chamber 2
A plurality of nozzles 6 for ejecting the stirring water 8 are provided inside. As shown in FIG. 4, the stirring water jet nozzles 6 are installed at the four corners of the stirring chamber 2 formed in a box shape, and the nozzles 6 are arranged along the inner wall 3 of the stirring chamber 2 either clockwise or counterclockwise in the same direction. Orient it to spout water on.

Although not shown, when the stirring chamber 2 is formed in the cylindrical shape, the stirring water jet nozzles 6 are provided at positions where the circular portion of the inner peripheral wall 3 of the cylindrical stirring chamber 2 is substantially evenly divided.

Reference numeral 7 is a pipe for distributing the agitated water 8 ejected from the agitated water ejection nozzle 6, respectively. The agitated water ejection nozzle 6 opening into the agitating chamber 2 is connected to one end of the pipe 7, and the other end is connected. The amount of water supplied to the water distribution pipe 7, that is, the stirring chamber 2
An adjustment valve 9 that adjusts the amount of water jetted into each nozzle is connected.

The water distribution pipe 7 is provided along the outer wall of the stirring chamber 2 and the adjusting valve 9 is fixed to the outer wall of the stirring tank 1. On the other hand, as a supply source of the agitation water 8 to the agitation tank 1, a cell-shaped or cylindrical water tank 10 which is carried in and installed on site is formed, and an underwater pump 11 is installed on the inner bottom of the water tank 10.
Tap water or the like is stored in the water tank 10 as the stirring water 8.

Reference numeral 12 is a parent hose for feeding the agitated water 8 in the water tank 10. One end of the parent hose 12 is connected to a discharge port 11a of a submersible pump 11 installed in the water tank 10, and the other end of the parent hose 12 is connected. A diversion valve 13 is provided to divert the water supply from.

Reference numeral 14 denotes a branch hose for sending the divided stirring water 8 to each of the distribution pipes 7. One end of each branch hose 14 is connected to the branch valve 13 and
Adjustment valve 9 provided with one end of each water distribution pipe 7 at the other end
Connect to.

A water outlet 22 is provided on the inner bottom wall of the stirring chamber 2 so that the adsorbent aqueous solution 1 remaining in the stirring tank 1 at the end of the work
Drain 5 or drain water for cleaning.

In this way, the submersible pump 11 installed in the water tank 10 sucks up the agitated water 8 and sends it to each branch hose 14 and the water distribution pipe 7 through the parent hose 12 and ejects it from each nozzle 6. As described above, the water ejection amount of each nozzle is adjusted by opening / closing the branch valve 9.

As described above, the stirring water jet nozzle 6 jets the stirring water 8 in the same direction along the stirring chamber inner wall 3 to cause a swirl in the stirring chamber 2, and thus the stirring tank 1 is filled with water. An adsorbent 17 such as activated carbon is poured into the stirring chamber 2 through the upper opening of the stirring tank 1 while generating a swirling flow of the stirring water 8 in the filling stirring chamber 2.

As a result, the adsorbent 17 is agitated by the agitating water 8 jetted into the agitating chamber 2 to form an adsorbent aqueous solution 15, and the adsorbent aqueous solution 15 is sucked up by the submersible pump 4 to the discharge port 4a of the submersible pump 4. It is charged into the adsorption basin 16 via the connected adsorbent charging hose 5.

After the completion of charging, the water content of the adsorbent solution 15 is drained from the water inlet 16a provided at the bottom of the adsorption pond 16 and the adsorbent 1 is discharged.
It is possible to leave only 7 in the adsorption pond 15.

[0022]

As described above, according to the present invention, the adsorbent is put into the stirring tank installed outside the adsorption pond and stirred in the stirring chamber while being sucked up by the submersible pump installed in the stirring chamber. Since the adsorbent is continuously fed into the adsorption pond via the adsorbent feed hose, the adsorbent can be put into the adsorption pond very efficiently, and the worker can put the adsorbent on the unstable scaffold that is placed in the adsorption pond. The danger of doing
The problem of occupational accidents caused by dust of the adsorbent, which is harmful to health, is fundamentally solved, and the adsorbent loading work can be performed in an extremely good working environment in terms of maintenance management on site.

Further, this makes it possible to save the labor of the whole work and achieve the reduction of the construction cost.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing a stirring tank of an adsorbent charging device according to an embodiment of the present invention with an adsorbent charging state.

FIG. 2 is a perspective view showing the stirring tank with a part thereof cut away.

FIG. 3 is a cross-sectional view showing another example of the stirring chamber.

FIG. 4 is a plan view showing an outline of the entire suction charging device.

FIG. 5 is a cross-sectional view showing a state in which an adsorbent in a conventional example is carried into an adsorption tank.

FIG. 6 is a perspective view showing a state in which the adsorbent is dropped into the adsorption pond.

[Explanation of symbols]

 1 stirring tank 2 stirring chamber 3 stirring chamber inner wall 4 submersible pump 5 adsorbent input hose 6 stirring water jet nozzle 7 adsorbent 8 stirring water 10 water tank 15 adsorbent aqueous solution 16 adsorption pond

Claims (2)

[Claims] Claim: What is claimed is: 1. A device for introducing an adsorbent into an adsorption pond of a water purification facility, which forms a stirring tank which is carried in and installed at the facility site of the adsorption pond, and an agitation chamber is formed at an inner bottom portion of the stirring tank. Then
A submersible pump is installed in the stirring chamber, a plurality of stirring water jet nozzles are provided on the inner wall of the stirring chamber, and an adsorbent feeding hose for supplying an adsorbent aqueous solution into the adsorption pond is further connected to the outlet of the submersible pump, It is characterized in that it is configured such that the adsorbent aqueous solution, which is charged from the upper opening of the stirring tank and stirred by the stirring water, is sucked up by an underwater pump in the stirring chamber and is charged into the adsorption pond through the adsorbent charging hose. Adsorbent loading device. 2. A water tank which is carried in and installed on site as a source of stirring water to the stirring tank, an underwater pump is installed in the water tank, and a discharge port of the underwater pump and the stirring water jet nozzle are provided. The adsorbent charging device according to claim 1, wherein the adsorbent charging device is connected by a water supply hose.