JP2977341B2 - Bubble separation device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the discharge of fish from a fish farm, etc.
The cleanliness of the water-treated undiluted solution flowing out of the wastewater treatment unit, including the water treatment unit that performs the water treatment of the undiluted undiluted solution, is used for the survival of fish.
The present invention relates to a bubble separation device for maintaining a required processing solution concentration .

[0002]

2. Description of the Related Art Conventionally , cleanliness and concentration of water in a fermentation tank are maintained.
As shown in FIG. 6, a bubble separation apparatus for holding the liquid is provided with a separation tank 01 having a stock solution inflow part 04 on the side,
Bubble generator 02 provided in the lower part of the inside, separation tank 01
A bubble removing device 03 having a rotary blade 010 and a motor 011 provided at the upper part of the processing solution outlet portion 05 provided outside the separation tank 01 and communicating with the inside thereof, and provided at the upper end of the side wall 05a of the processing solution outlet portion 05. A movable weir 06 which can be raised and lowered manually and a processing liquid outlet 012 provided outside the processing liquid outlet 05 are provided.

[0003] In the above bubble separation apparatus , the undiluted solution inflow section 0
4 to discharge the fish in the separation tank 01 supplied together with the undiluted solution.
The object to be separated, such as excrement , adheres to the bubbles 7 generated in the tank 01 by the bubble generator 02, and the bubbles 7 float and generate bubbles 9 on the liquid surface 8.

[0004] The bubbles 9 generated on the liquid surface 8 are pushed upward by the bubbles 9 successively generated. However, when moving upward, the liquid contained in the bubbles 9 decreases, and the bubbles 9 are separated. Things are more concentrated.

[0005] be separated was pushed up on the liquid surface 8
Foam 9 containing a large amount, since the scooping out by rotating blade 010 that rotates the horizontal plane by a motor 011, cleanliness than dope the isolate is supplied is removed together with the foam 9
The processing liquid from which the separation object has been removed by the above is passed through the processing liquid outflow part 05 and the processing liquid outlet 0
From 12 the fish were drained into the farm where fish were farmed .

[0006]

The conventional apparatus has the following problems. (1) When the concentration of the object to be separated is low, the amount of generated bubbles is small, and as a result, the height of the foam becomes low and does not reach the foam removing device, so that the object to be separated cannot be removed. (2) If the concentration of the separation target is too high, the amount of bubbles generated is large and the removal is easy, but the bubbles are removed in a state where the amount of liquid contained in the bubbles is large, so that the liquid content is significantly large. And the efficiency of concentration of the separated substance is low. (3) The substance to be separated is removed and flows out to the processing liquid outlet.
Concentration of separated material in water-treated stock solution, in other words, clean
The degree of cleanliness is unknown.
Removal of separated objects (bubbles) to maintain purity and concentration
Difficult to control.

[0007] The present invention is to solve the above problems.

[0008]

According to the present invention, there is provided a bubble separating apparatus comprising: a separating tank provided with a bubble generating device, a bubble removing device, and a stock solution inflow portion; a treatment liquid outflow portion in which the separating tank is communicated with the inside; in dissolved air flotation apparatus provided with a processing liquid outlet port provided adjacent to the outlet portion, and out flow into the treatment liquid outlet portion
A processing liquid concentration monitoring device for detecting the concentration of the processing liquid, a liquid level adjusting means provided at the processing liquid outflow portion, and an input from the processing liquid concentration monitoring device connected to the liquid level adjusting means;
The liquid level adjustment means is controlled by the detected processing solution concentration detection signal.
The control device is provided with a control device.

[0009]

In the above operation, the liquid level of the separation tank and the processing liquid outlet is usually lowered to a certain level, the raw liquid is supplied from the raw liquid inlet, the substance to be separated is removed from the processing liquid outlet, and the predetermined liquid is removed.
The processing liquid of the purity and concentration is discharged, and the apparatus of the present invention is operated.

In the above-mentioned separation tank, bubbles generated by the bubble generator adhere to the separation target contained in the undiluted solution and rise, so that bubbles corresponding to the concentration of the separation target are generated on the liquid surface. Later, a part of the foam in the upper part returns to the original liquid state, thereby increasing the concentration of the separation target in the foam.

In the apparatus of the present invention, the liquid level of the separation tank and the processing liquid outlet can be adjusted by the control device, the liquid level adjusting means and the processing liquid concentration monitoring device . but after a lapse or a certain period of time it becomes an appropriate amount, punished
Processing to detect the concentration of the processing liquid discharged from the physical solution outlet
The detection signal of the concentration from the liquid concentration monitoring device is inputted. The liquid level adjusting means is operated by the control signal for controlling the concentration of the processing liquid from the control device to the predetermined concentration. To a liquid level suitable for removal of water.

While the liquid level is rising, the object to be separated together with the bubbles is removed by the bubble removing device, and then the liquid level is returned to a normal state again by the liquid level adjusting means.

[0013] In the apparatus of the present invention, a liquid level adjusting means provided in the treatment liquid outlet portion as described above, since the assumed that the liquid surface of the separation tank can be easily adjusted, the flow in the separation tank with undiluted
Regardless of the change in the concentration of the sediment that enters , the concentration efficiency of the sediment is high, and for the cultivation of fish from which the sediment has been appropriately removed.
An apparatus capable of generating a processing solution having a suitable concentration and cleanliness is realized.

[0014]

FIG. 1 shows a first embodiment of the present invention. This embodiment be shown <br/> in Figure 1, the stock solution inlet 4 is provided in the air bubble generating device 2 and the side portion at the bottom, the suds removal apparatus 3 and 22 to be described later to the upper
Separation tank 23 with lid as a separation tank to be accommodated,
Disposed outside of the lid with the separation tank 23, the separation tank 23 with the lid
Constructs a part of the processing liquid outlet connected to the lower part of the side wall
A processing liquid outflow pipe 25 is disposed upward and separated with a lid.
A treatment liquid outflow portion 5 that is communicated with the tank 23 , and
In the bubble separation device having the processing liquid outlet 12 provided outside the processing liquid outlet 5, the upper end of the processing liquid outlet pipe 25
Plays a role of an outflow portion movable weir through the seal portion 25a.
A tubular movable weir 24 is provided.

A processing liquid concentration monitor 26 is provided at the processing liquid outlet 12 connected to the processing liquid outlet 5, and the monitor 26 is connected to the controller 16. This control device 16 is connected to the driving source 15,
The driving source 15 is a driving device 13 coupled to the movable weir 24.
It is connected to the. In the present embodiment, the movable weir 24, the driving device 13, and the driving source 15 use the separation tank with a lid.
A liquid level adjusting means for adjusting the height of the liquid level 8 in 23 is formed. In this embodiment, the processing liquid is supplied to the separation tank 23 with a lid.
Other than the related device for flowing out from the device, it is the same as the conventional device, and the detailed description thereof will be omitted.

In the above, the operation is performed by moving the movable weir 24 up and down.
By liquid level adjusting means for adjusting the liquid surface 8 of the separation vessel 23
The adjustment of the liquid level 8 is based on the concentration of the separation target in the processing liquid.
The concentration of the liquid (hereinafter, simply referred to as concentration) is detected by the processing liquid concentration monitoring device 26, and the detection is performed by moving the movable weir 24 up and down.

[0017] That is, the detection signal of the processing solution concentration monitoring device 26 is input to the controller 16, the controller 16 actuates the driving device 13 by inputting a control signal to the drive source 15, the concentration in the processing solution If the value is higher than the set value, the separation is considered to be insufficient, and the movable weir 2 is moved so that the liquid level 9 in the separation tank 23 rises.
4 is raised. When the concentration is low, the movable weir 24 is lowered to improve the processing capacity. Incidentally, by detecting the concentration of the more processing solution to the processing solution concentration monitor unit 26, the
The movable weir 24 is raised and lowered according to the detection signal, and the height of the liquid level 8 is increased.
The liquid level control to control the concentration of the discharged foam, weight etc.
The detected Ri by the monitoring device, the concentration of the processing solution from these
Is calculated, and the operation is performed based on the calculated concentration of the processing solution.
It is also possible to replace the liquid level control described above.

That is, the driving force supplied from the driving source 15 such as hydraulic pressure, hydraulic pressure, pneumatic pressure, or electric power is applied to the processing solution concentration model.
The detection signal of the concentration of the processing solution detected by the
The movable dam 24 is driven by being controlled by an electromagnetic valve or the like which is opened and closed by a command signal from the control device 16 and supplied to the driving device 13.

[0019] Since the movable dam 24 which the driving device 13 is connected, by the drive unit 13 to intermittently lift the outlet portion movable dam 24 in accordance with the state of bubbles in the lid with the separation tank 23 Since the liquid level 8 can be adjusted by raising and lowering the movable weir 24 , it is possible to appropriately remove an object to be separated from the stock solution.

In this embodiment, as described above ,
Operates according to the concentration of the processing liquid detected by the liquid concentration monitor
Since the movable weir 24 can be intermittently moved up and down, it is possible to always generate the processing liquid from which the separation target is appropriately removed regardless of the change in the concentration of the stock solution .

Next, a second embodiment of the present invention Figures 2 and 3
Shown in This embodiment shown in FIGS. 2 and 3 is provided with a bubble generator 2 at the lower part, a bubble remover 3 at the upper part, and a stock solution inflow part 4 on the side, and is not provided with a lid unlike the first embodiment. A separation tank 1, a treatment liquid outlet 5 provided outside of the separation tank 1, communicating with the inside of the separation tank 1, and having an outlet movable weir 6 at the upper part of the side wall 5 a, is provided outside, the
In dissolved air flotation apparatus provided with a process liquid concentration monitoring apparatus the treatment liquid outlet 12 provided with in one embodiment, the treatment liquid coupled drive the variable Doseki 6 provided in the upper portion of the side wall 5a of the outlet portion 5 13, a switching device 14 connected to the driving device 13, and a driving source 1 connected to the switching device 14.
5 and includes a control unit 16, the liquid level adjusting means comprising a drive source 15 and the outlet portion movable weir 6 and the driving unit 13 and the opening and closing device 14 is al provided. Note that this embodiment and later
Third embodiment of predicates, in the fourth embodiment, except related device of the treatment liquid outlet part 5 is similar to the conventional device, the processing solution
Processing liquid for detecting the concentration of the processing liquid provided at the outlet
The description of the density monitor device 12 is the same as that of the first embodiment.
Because it is Flip, and detailed description thereof will be omitted.

In the above description, the driving force supplied from the driving source 15 such as hydraulic pressure, hydraulic pressure, pneumatic pressure or electricity
6 is controlled by an opening / closing device 14 such as an electromagnetic valve that is opened / closed by a command signal from 6 and supplied to the driving device 13;
The driving unit 13 drives the variable Doseki 6 which is guided by the guide 17 as shown in FIG.

UpperAllowedThe moving weir 6 is the driving mechanism described above.13Is connected
This drive mechanism13In the separation tank 1
According to the state of the foamPossibleThe moving weir 6 can be raised and lowered intermittently.
The liquid level 8 is adjusted by raising and lowering the movable weir 6.
Appropriate removal of substances to be separated from the stock solutionIs line
Make sure that the processing solution has the proper concentration.PossibleWhat
You.

Further, in the present embodiment, as described above
For which enables intermittent lifting of the variable Doseki 6, regardless of the change in concentration of the process liquid, the isolate is always properly removed, suitable
This makes it possible to generate a processing solution having a sharp concentration .

[0025] The third embodiment of the present invention will be described with reference to FIG. This embodiment shown in FIG. 4, the liquid by the place of the variable Doseki 6 you lift up and down in the second embodiment, the rotation weir 19 which is rotated by a motor 18 via a transmission device 20 of the chain or a belt, etc. Forming a surface adjusting means,
The level of the liquid level 8 is adjusted according to the rotation angle of the liquid. The belt skimmer is used as the bubble removing device 22, and the side wall 5a of the processing liquid outlet 5 is connected to the rotary weir 19.
An opening / closing device 21 for assisting the adjustment of the liquid surface 8 level by means of the opening / closing device 21 is provided.

The operation and effects of this embodiment are almost the same as those of the second embodiment. Incidentally, by rotating the rotating weir 19, the motor 1 because changing the degree of opening of the closing device 21
8 and the driving device 13 are provided with the processing solution concentration shown in the first embodiment.
Detection signal of the concentration of the processing liquid detected by the degree monitor 26
Is controlled in the same manner as in the first embodiment by a control device that outputs a drive signal based on the control signal .

In FIG. 4 , an opening / closing device 21 is added in addition to the rotary weir 19. In this case, when the opening / closing device 21 is in a low liquid level and is closed by a control device, the rotating device is rotated. The liquid level of the separation tank 1 rises to the liquid level corresponding to the weir 19, and the bubbles are discharged. In this case, if the rotary weir 19 is finely adjusted, the discharge control can be performed with higher accuracy.

Next, a fourth embodiment of the present invention will be described with reference to FIG. The present embodiment shown in FIG. 5 uses a separation tank 23 with a lid similarly to the first embodiment, and a processing liquid outflow pipe 35,
36, the processing liquid outflow pipe 35 used in the present embodiment has an opening 35a at the upper end, and an opening 35b at the middle side. Is provided with a driving device 13 for opening and closing the opening 35a by packing, and a cylinder device having packing 28, a valve body 30 and a valve rod 31 and having relief ports 33 and 34 provided in an intermediate opening 35b. 27 are provided. The cylinder device 27 is connected to two pipes 29 connected to the discharge port of the pump 22 that supplies the undiluted solution to the separation tank 23 with a lid. One of the pipes 29 is connected directly, and the other is connected via the opening / closing device 21. The switching device 21 and the driving device 13 are connected to the control device 16. In this embodiment, the driving device 13 and the cylinder device 2
7, switchgear 21, processing liquid outflow pipes 35 and 36, and pipe 29
Forms a liquid level adjusting means.

In the above, when there are many objects to be separated in the stock solution, the intermediate opening 35b is opened and the liquid level 8 of the separation tank 23 is set to this level. The opening 35b is intended to open and close by a cylinder device 27 utilizing a pressure of the discharge fluid from the pump 22, processing the switchgear 21 made of an electromagnetic valve or the like is inputted from the treatment liquid concentration monitoring device 26
It is opened and closed by a command signal output from the control device 16 based on the concentration of the fluid, and when the opening and closing device 21 is closed, the packing 28 of the cylinder device 27 is pulled in by the hydraulic pressure of the other pipeline. In rare cases, the opening 35b is opened and the processing liquid flows out, and the liquid level 8 of the separation tank 23 is set to an appropriate level.

When the opening / closing device 21 is open, hydraulic pressure acts on the valve body 30 in the cylinder device 27, and hydraulic pressure acts on the left and right sides of the valve body 30. As a result, the side having the valve rod 31 has a pressure receiving area. The operating pressure is low due to the low
At the same time, the processing solution is pressed against the opening 35b to stop the outflow of the processing liquid.

When the opening 35b is closed, the liquid level 8 of the separation tank 23 with the lid rises and reaches the level of the opening 35a. When the content of the separation target in the undiluted solution is slightly high, the opening 35a is opened to keep the liquid level 8 at this level, but the opening and closing of the opening 35a is performed by the cylinder type driving device 13.
Is driven by packing provided in the driving device 13.

When the content of the substance to be separated in the undiluted solution is extremely small, the opening 35a is closed by the driving device 13 and the liquid surface 8 of the separation tank 23 is raised to the height of the opening of the processing liquid outflow pipe 36. To remove bubbles
The processing solution discharged from the processing solution outlet 5 at a specified concentration.
Things .

In this embodiment, since the liquid level in the separation tank can be controlled in multiple stages, the removal of the separation target contained in the undiluted solution should correspond to a wider change in the concentration. Can be. Even a system in which the opening 35a and the processing liquid outflow pipe 36 are omitted exerts a corresponding effect.

In the present invention, the opening and closing device may be a method using an electromagnetic coil, a cylinder device, a diaphragm, an air bag, or the like.

[0035]

According to the present invention, when bubbles to be separated in a stock solution are attached to bubbles generated by a bubble generator and bubbles generated are accumulated on the upper surface of the liquid in the separation tank, the concentration of the processing solution is reduced.
The solution is detected by the processing solution concentration detection signal input from the
By actuating the liquid level adjusting means by a control signal from a control device for controlling the surface adjusting means to raise the liquid level of the separation tank and facilitating the removal of the foam to which the object to be separated adheres by the foam removing apparatus, Regardless of the change in the concentration of the separated material, the concentration efficiency of the separated material was increased , and the separated material was appropriately removed.
An air bubble separation device capable of producing a treatment liquid having a concentration that is appropriate for the survival of farmed fish is realized.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of a first embodiment of the present invention.

FIG. 2 is an explanatory diagram of a second embodiment of the present invention.

FIG. 3 is a perspective view of the second embodiment.

FIG. 4 is an explanatory diagram of a third embodiment of the present invention.

FIG. 5 is an explanatory diagram of a fourth embodiment of the present invention.

FIG. 6 is an explanatory diagram of a conventional device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Separation tank 2 Bubble generator 3,22 Bubble removal device 4 Raw liquid inflow part 5 Processing liquid outflow part 5a Side wall 6 Movable weir 7 Bubbles 8 Liquid level 9 Bubbles 12 Processing liquid outflow port 13 Drive unit 14,21 Opening / closing unit 15 Drive source DESCRIPTION OF SYMBOLS 16 Control device 17 Guide 18 Motor 19 Rotary weir 20 Transmission device 23 Separation tank with a lid 24 Cylindrical movable weir 25 Treatment liquid outflow pipe 26 Treatment liquid concentration monitoring device 27 Cylinder device 28 Packing 29 Pipe line 30 Valve body 31 Valve rod 33, 34 Evacuation port 35, 36 Treatment liquid outflow pipe

Claims (1)

(57) [Claims] 1. A separation tank provided with a bubble generation device, a bubble removal device, and a stock solution inflow portion, a processing solution outflow portion communicating with the separation tank and the inside thereof, and a processing solution flow provided adjacent to the outflow portion. In the bubble separation device having an outlet, the treatment liquid outlet
Concentration monitor for detecting the concentration of treatment liquid flowing out
Location, the treatment solution liquid level adjusting means provided in the outlet portion, and is connected to the liquid level adjusting means, the process liquid concentration monitoring instrumentation
The liquid level is controlled by the processing solution concentration detection signal
A bubble separation device comprising a control device for controlling a regulating means .