JP3035284B1 - Waste removal equipment - Google Patents

Abstract

The present invention provides a waste removal apparatus that removes a pollutant contained in water by using a bubble, and that efficiently collects a foam containing a large proportion of the pollutant without increasing the size of the entire apparatus. SOLUTION: A water storage section 4 which takes in sewage and mixes gas to generate bubbles containing sewage on the water surface, and a foam discharge section 5 connected to the water storage section 4 and guiding the bubbles to the sewage storage section 6. In the waste removal apparatus 1 provided, the foam discharge unit 5 is configured to arrange the flow suppressing member 40 for suppressing the movement of the foam.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a filth removing apparatus for generating bubbles by mixing gas into sewage taken in from the outside and removing sewage contained in the sewage by the bubbles.
In particular, it relates to a technology for discharging foam.

[0002]

2. Description of the Related Art In a water tank used for breeding fish and animals on the waterside, the water in the tank is contaminated by residual food given to the fish and fish droppings. Do something like that. In general, a filtration device that physically removes contaminants contained in water using a filter or the like is used for such filtration.Aside from a filtration device using a filter, a dirt removal device called a protein skimmer using foam is used. May be This device removes air bubbles into the water (mainly seawater) from the water tank and generates microscopic bubbles in the water to adsorb contaminants (organic substances such as proteins decomposed in the water) on the surface of the bubbles. Then, by collecting the foam, contaminants contained in the water are removed. As described above, this waste removal apparatus generally absorbs contaminants into air bubbles in the water storage section as described above, and moves the bubbles that are stacked on the water surface of the water storage section and move upward so as to be pushed out from below, into bubbles having a tubular partition wall or the like. The discharge unit guides the waste to the waste storage unit. Further, the foam stored in the waste storage part is waste, and the waste is collected by removing the waste storage part, discharging the waste to another container, and collecting the waste.

[0003]

In the conventional filth removal apparatus having the above-described structure, bubbles on the water surface in the water storage section are
As it moves upward, the moisture of the foam gradually escapes and changes to a foam with a high proportion of contaminants. For this reason, the ratio of the pollutant contained in the foam in the waste storage unit changes according to the moving time of the foam until reaching the waste storage unit. That is, when the length of the foam discharge part is short, the movement time of the foam is short, so that the foam having a high water content is stored in the waste storage part. On the other hand, when the foam discharge part is long, the waste is stored in the waste storage part. In the water, bubbles having a low moisture content and a high waste content are stored. If the foam discharge section is short and bubbles with a high moisture content are stored in the waste storage section, the water in the water tank will decrease relatively quickly, and the frequency of work such as replenishing the water in the water tank will increase. There was a problem that would increase. Also, at this time, since the amount of foam (dirt) stored in the dirt storage unit per time increases, the dirt collected in the dirt storage unit must be frequently collected, which is troublesome. On the other hand, if the foam discharge section is lengthened for the purpose of efficiently collecting foam with a high proportion of waste, the moisture content of the foam stored in the waste storage section is small, and the water in the water tank decreases slowly. However, there is a problem that the entire apparatus becomes large and a large installation space is required. Furthermore, various means are used for supplying water from a water tank, such as a pump. However, in a conventional waste removal apparatus, depending on the liquid sending capacity of the supply means, it is possible to efficiently move bubbles to the waste storage part. Therefore, it is necessary to limit the liquid supply capacity of the water supply means to some extent. Also, depending on the type of bait used in the aquarium, the amount of foam generated becomes extremely large, the amount of foam stored in the waste storage section becomes large, and the water percentage of the stored foam also increases. Therefore, there is a problem that the water in the water tank is more likely to decrease.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and in a waste removing apparatus for removing pollutants contained in water by bubbles, the proportion of the pollutants is large without increasing the size of the entire apparatus. An object of the present invention is to provide a waste removal device that efficiently collects foam.

[0005]

Means for Solving the Problems To solve the above-mentioned problems, the invention according to claim 1 includes a water storage section for taking in sewage and mixing gas to generate bubbles containing sewage on the water surface; And a foam discharge unit connected to the foam discharge unit for guiding the foam to the waste storage unit, wherein the foam discharge unit moves the foam spirally from the water storage unit in the foam discharge unit.
A technique is employed in which a movement time of the foam reaching the waste storage portion is lengthened and a flow suppressing member for suppressing the movement of the foam is disposed. Ma
Further, the invention according to claim 2 takes in sewage and simultaneously
A storage that mixes the body and generates foam containing dirt on the water surface
Water part and foam connected to the water storage part and guiding the foam to the waste storage part
In the waste removal device provided with a discharge section,
Moves the foam alternately to the left and right from the water storage section in the foam discharge section.
Prolongs the bubble movement time to the waste storage section and moves the foam
The technique of arranging the flow suppressing member for suppressing is adopted. In this waste removal apparatus, since the flow suppressing member is disposed in the bubble discharge unit that guides the moving destination of the foam, the movement of the foam is suppressed by the flow suppressing member, and the moving time of the foam to reach the waste storage unit is reduced. As the water becomes longer and the moisture contained in the foam escapes during this movement, the foam having a lower moisture content and a higher proportion of contaminants is stored in the waste storage portion.

According to a third aspect of the present invention, in the filth removal apparatus of the first aspect, a technique is employed in which the flow suppressing member is a spiral member for spirally moving the foam in the foam discharge section.
In this waste removal apparatus, the bubbles in the bubble discharge section spirally move along the flow suppressing member, so that the moving distance of the bubbles is effectively increased in a predetermined area and the moisture of the moving bubbles is released. It is possible to collect bubbles with a high proportion of waste.

[0007] According to a fourth aspect of the present invention, a fish or a waterside animal is used.
A water storage unit that takes in sewage from a water tank used for breeding and mixes gas to generate foam containing dirt on the water surface, and a sewage storage unit that is disposed above the water storage unit and stores foam.
A reservoir and a foam discharge unit that guides the foam from the water storage unit to the waste storage unit
A filth removal device comprising:
A lid that seals the space where bubbles from the waste to the waste storage section intervene,
It is arranged to penetrate this lid and changes the area of the opening that escapes to the outside.
In this case, a technique is employed that includes pressure adjusting means for adjusting the pressure in the space where bubbles are present from the water surface in the water storage section to the waste storage section to adjust the height of the water surface in the water storage section. In this waste removal apparatus, since the pressure adjusting means for adjusting the pressure of the space in which the foam is interposed is provided, by adjusting the pressure of the space in which the foam is interposed to an appropriate pressure according to the supply capacity from the water tank, It is possible to keep the water surface height of the water storage section substantially constant, to suppress fluctuations in the movement distance of bubbles from the water surface to the waste storage section caused by changes in water surface height, and to keep the movement distance of bubbles substantially constant. Thus, the water content of the foam stored in the waste storage section can be made substantially uniform. In addition, since the water level can be adjusted by the pressure adjusting means in accordance with the liquid sending capacity of the water supply means, it is possible to broadly set the liquid sending capacity required for the supply means.

According to a fifth aspect of the present invention, in the filth removing apparatus of the fourth aspect , the filth disposed through the lid and pushed into the filth storage part is pushed out by the pressure inside the filth storage part. and waste discharge means for discharging to the outside Te, filth of the waste discharge means
A technology including a control valve for changing the discharge amount is employed. In this waste removal apparatus, since the foam stored by the waste discharge means is pushed out to the outside by the pressure inside the storage part and discharged, the stored foam (dirt) can be discharged to the outside without removing the waste storage part. It becomes possible.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS. FIG. 1 is a schematic configuration diagram illustrating a state where the waste removal apparatus 1 of the present embodiment is attached to a water tank S. FIG. 2 is a vertical cross-sectional view of the waste removal apparatus 1. In FIG. 1, a water supply unit 2 and a pipe from a pump P are connected so that water from a water tank S is supplied to the waste removal apparatus 1, and the main body of the waste removal apparatus 1 is a stirring unit 3 and a water storage unit. 4, and a waste storage section 6 having a foam discharge section 5 therein are stacked in order from the bottom. Further, the water treated in the waste removal apparatus 1 is configured to return to the water tank S from the drainage unit 7 again.

As shown in FIG. 2, the water supply section 2 has a water supply pipe 12 having a gas supply port 10 and a water supply port 11 connected to a stirring section 3 by a nut 13, and a water tank S supplied from the water supply port 11. It is configured to supply water to the stirring unit 3. Further, the water supply pipe 12 has a Venturi pipe 15 in which the upstream pipe is narrowed, and a gas supply port that is open to the atmosphere by utilizing a differential pressure in a narrow portion of the Venturi pipe 15 in a cross-sectional area of the flow path. It is configured to inhale gas from 10.

The stirring section 3 is divided into a bubble stirring chamber 20, a gas supply chamber 21, a bubble guide chamber 22, and a drain guide chamber 23 by an annular partition and piping. And
The bubble stirring chamber 20 is an annular space, and is formed such that water and bubbles supplied from the water supply unit 2 are stirred by circling along a cylindrical partition wall, so that minute bubbles are mixed in the water. ing. On the water supply section 2 side of the bubble stirring chamber 20,
The guide plate 24 is erected at a predetermined angle with respect to the inflow direction of the water from the water supply unit 2, and the water from the water supply unit 2 changes the flow direction along the guide plate 24 to the inner and outer walls. It goes around along.

The gas supply chamber 21 is formed so as to communicate with the lower part of the bubble stirring chamber 20, and is an annular space slightly smaller than the bubble stirring chamber 20. A gas supply pipe 25 is provided in the gas supply chamber 21 so as to penetrate the outer wall.
The gas supply pipe 25 has one outer end connected to the gas supply means 14 and the other end connected to an air stone (not shown).
The air stone is a porous member made of wood or ceramic, is installed in the gas supply chamber 21, and is supplied with gas from the gas supply pipe 25 to generate micro bubbles.

The bubble guide chamber 22 is an annular space formed by partition walls so that the cross-sectional area increases as it goes upward, and is formed in communication with the bubble stirring chamber 20. Water containing microbubbles flowing upward from the bubble stirring chamber 20 is guided to the bubble guide chamber 22 and moves to the water storage section 4. Further, a large number of holes 27 are formed in a disk 26 installed at the upper end of the bubble guide chamber 22, and fine air bubbles are passed through the holes 27 so that minute bubbles are formed in the bubble guide chamber 22.
The water is diffused into the water storage unit 4 and rises.

The drainage guide chamber 23 is disposed around and in the center of the bubble stir chamber 20 and the gas supply chamber 21 and communicates with an L-shaped pipe 28 connected to the drainage section 7. . The drain guide chamber 23 is configured to guide the water flowing from the water storage section 4 to the lower part, and to guide the water upward from the center of the lower part.

Next, the water storage section 4 is mounted on the stirring section 3 and is configured to store water from the water tank S inside the cylindrical partition wall. As described above, the water storage section 4 is in communication with the bubble guide chamber 22 and the drain guide chamber 23, and water containing microbubbles flows from the bubble guide chamber 22, and after being processed into the drain guide chamber 23. It is configured to flow water. The water level L of the water stored in the water storage unit 4 is:
The height is determined from the relationship between the liquid sending capacity of the pump P and the pressure applied to the water surface L and the amount of stored water. In the present embodiment, the pressure applied to the water surface L is adjusted by adjusting the pressure applied to the water surface L as described later. The height is kept substantially constant.

The water storage section 4 has a space 30 formed in the lower part around the bubble guide chamber 22 so that water stays there. The space 30 is formed for the purpose of associating microbubbles contained in the water flowing into the space 30 with each other and ascending, and removing bubbles mixed in the water as much as possible. In addition, a current plate 31 arranged at the bottom of the water storage unit 4.
Is provided for the purpose of adjusting the flow of water in the space 30 to guide the water to the drainage guide chamber 23 and efficiently separating bubbles from the water.

The foam discharge section 5 is provided above the water storage section 4.
It is constituted by a cylindrical partition, and is configured to guide bubbles moving upward from the water surface L in the water storage section 4 to the waste storage section 6. Then, a flow suppressing member 40 that suppresses the movement of the foam is disposed in the foam discharging section 5. The flow suppressing member 40 is disposed for the purpose of suppressing the movement of the foam in the foam discharging unit 5 and extending the moving time of the foam to reach the waste storage unit 6. 5 is formed in a shape to move the bubbles in a spiral. That is,
The flow suppressing member 40 is a cylindrical member 40 having an axis at the center.
and a spiral member 40b formed of a plate material is joined to the periphery of the cylindrical member 40a. The flow suppressing member 40 is formed such that the outer diameter of the spiral member 40b corresponds to the inner diameter of the bubble discharge unit 5, is inserted into the bubble discharge unit 5 from above the bubble discharge unit 5, and Are supported by a projection 41 provided on the inner wall of the. In addition, the foam discharging section 5
At the upper end of the, a holding lid 42 is installed so that the flow suppressing member 40 does not move upward due to the rising force of the bubbles,
The holding lid 42 is provided with an opening 43 at the center thereof, and the bubbles passed from the bubble discharging section 5 are discharged from the opening 43. With these, the foam discharge section 5 has:
A spiral passage is formed, and bubbles from the water reservoir 4 move upward while turning inside the passage. In addition, the bubbles discharged from the opening holes 43 formed in the holding lid 42 flow out to the waste storage section 6.

The waste storage section 6 is provided around the foam discharge section 5 and is configured to store bubbles discharged from the foam discharge section 5 in an annular space formed therein. In addition, the filth storage unit 6 is provided with the filth storage unit 6 from above the water surface L of the water storage unit 4.
Is provided with an upper lid 50 for sealing a space in which bubbles reaching to the space exist. The upper lid 50 is a lid that is curved upward, and is installed at the upper end of the waste storage unit 6.

Further, the waste storage section 6 is provided with a pressure adjusting means 51 for adjusting the pressure in the space where bubbles are present in the waste removal apparatus 1. The pressure adjusting means 51 includes an upper lid 50.
And an exhaust pipe 52 and an adjustment valve 53 are provided. The pressure adjusting means 51 changes the opening area to the outside by rotating the adjusting valve 53 forward and backward, and thereby adjusts the pressure inside the waste removal apparatus 1.

Further, the waste storage unit 6 is provided with waste discharge means 54 for extruding the stored foam by the pressure inside the waste storage unit 6 and discharging the same to the outside. The waste discharging means 54 is disposed so as to penetrate the upper lid 50, and includes a waste discharge pipe 55 having a waste discharge pipe 55a, and an adjustment valve 56. By rotating the control valve 56 in the opening direction, the waste discharging means 54 generates bubbles (filtrate) stored in the waste storage portion 6.
Is discharged to the outside through the waste discharge pipe 55a. At this time, the amount of waste discharged from the waste storage unit 6 changes depending on the number of rotations of the adjustment valve 56 in the opening direction.

Next, the drainage section 7 is configured such that the drainage pipe 60 is connected to the water storage section 4 by a nut 61, and the water treated by the waste removal apparatus 1 is returned to the water tank S. The drainage pipe 60 is connected to the L-shaped pipe 28 inside the water storage part 4, and is configured to guide the water flowing from the water storage part 4 to the drainage guide chamber 23 to the water tank S. In addition, a drain valve 62 is provided in the drain section 7 so that the amount of drain water returning to the water tank S can be adjusted and the water level in the water storage section 4 can be adjusted. That is, when the drain valve 62 is operated in the closing direction, the amount of drain water flowing from the drain pipe 60 to the water tank S decreases, so that the amount of water inside the water storage unit 4 increases and the water level L rises.

Next, the operation of the filth remover 1 configured as described above will be described. First, in FIG.
The aquarium S is an aquarium S for breeding fish and the like, and the water in the aquarium S is soiled by remaining food and fish droppings. Then, by operating the pump P, water is supplied from the water tank S to the waste removal apparatus 1 via the water supply unit 2. Referring to FIG. 2, in the water supply unit 2, water from the water tank S is supplied to the stirring unit 3. At this time, the flow velocity of the water in the portion (Venturi portion) of the Venturi tube 15 having a narrow flow path cross section is large, and the static pressure is low, so that the gas is sucked into the water from the gas supply port 10 and downstream of the Venturi portion. A large amount of microbubbles are generated due to the shear flow of the air. Then, the generated microbubbles are carried to the bubble stirring chamber 20 together with the water.

In the bubble stirring chamber 20, the water and the fine bubbles guided by the guide plate 24 circulate in the annular chamber. Further, an air stone is provided in the gas supply chamber 21, and fine bubbles are generated from the air stone by the gas supplied from the gas supply unit 14 and flow into the bubble stirring chamber 20.
In the bubble agitation chamber 20, these microbubbles and water are agitated and the microbubbles are uniformly mixed in the water, and the water flows to the bubble guide chamber 22. The water containing microbubbles guided to the bubble guide chamber 22 flows into the water reservoir 4 through the hole 27 of the disk 26.

In the water storage section 4, the microbubbles cause contaminants contained in the water to be adsorbed on the surface of the bubbles and rise together with the bubbles. At this time, if the size of the microbubbles is too large, the ability to adsorb dirt is small, and if the size of the microbubbles is too small, they flow directly into the drainage guide chamber 23 and return to the water tank S. The conditions such as the installation state of the venturi tube 15 are set in advance so that the size can be most efficiently adsorbed with dirt.

The microbubbles rising in the water in the water storage section 4 float on the water surface L in the water storage section 4 to form bubbles, and gradually move upward so that the bubbles are piled up and pushed out from below on the water surface. Then, the foam moving upward from the water surface L flows into the foam discharge unit 5 arranged above the water storage unit 4. The foam discharge unit 5 guides the foam from the water storage unit 4 to the waste storage unit 6, and the foam that has passed through the foam discharge unit 5 is stored in the waste storage unit 6.

At this time, since the flow suppressing member 40 is disposed in the foam discharge section 5, the flow state of the foam is suppressed, and the foam takes a long time to move. In the present embodiment, since the flow suppressing member 40 that moves the foam in the foam discharging unit 5 in a spiral shape is arranged, the bubble rises while moving in a spiral shape along the flow suppressing member 40. As a result, the moving distance of the foam from the water surface L to the waste storage part 6 becomes longer, so that the moving time of the foam becomes longer. Is stored.

The inside of the waste removal apparatus 1 is constructed so that the interior of the apparatus 1 can be closed by an upper lid 50. However, if the apparatus is kept in a closed state, bubbles are continuously generated and the pressure in the apparatus 1 gradually decreases. The height (water level) of the water level L of the water storage unit 4 gradually decreases from the relationship between the liquid sending capacity of the pump P and the pressure applied to the water level L. For this reason, the internal pressure of the apparatus 1, that is, the pressure of the space in which bubbles from the water surface L to the waste storage section 6 intervene, is adjusted by the pressure adjusting means 51 so that the water level becomes substantially constant. Here, in order to prevent the water level from dropping due to the rise of the internal pressure due to the bubbles, the pressure adjusting means 5 is used.
The first control valve 53 is adjusted in the opening direction so that the gas inside is always discharged to some extent, and the rise of the internal pressure due to the generation of bubbles is balanced to keep the water level substantially constant.

The adjusting valve 53 of the pressure adjusting means 51
If the water level still drops even when the valve is fully opened, the drain valve 62 is adjusted in the closing direction to reduce the amount of water discharged from the drain pipe 60 to the water tank S, raise the water level, and then maintain the water level substantially constant. For example, the drain valve 62 is readjusted so as to be adjusted. By keeping the water level of the water storage section 4 substantially constant in this way, the moving distance of the foam from the water surface L to the waste storage section 6 is always maintained at an appropriate distance, and the waste storage section 6 always has a high foam ratio. Will be stored.

The foam (dirt) stored in the dirt storage section 6 is discharged to the outside by the dirt discharging means 54 and collected. That is, the control valve 5 of the waste discharging means 54
By rotating 6 in the opening direction, the filth pushed out by the pressure inside the device 1 is discharged to the outside. The water from which contaminants have been removed in the water storage unit 4 returns to the water tank S through the drainage guide room 23 and the drainage unit 7. By such a series of operations, the contaminants contained in the water from inside the water tank S are efficiently removed by the bubbles, and the water contaminants in the water tank S can be removed.

As described above, in the waste removal apparatus 1 of the present embodiment, since the flow suppressing member 40 for moving the foam spirally in the foam discharge part 5 is disposed, the waste storage part 6 is moved from the water surface L.
The moving distance of the foam reaching the air becomes longer, the moisture of the foam escapes during the movement, and the foam with a high proportion of contaminants is stored in the waste storage unit 6, and the foam with a high waste rate can be efficiently collected. Becomes In addition, since the height (water level) of the water surface L in the water storage unit 4 is maintained substantially constant by the pressure adjusting means 51 and the drain valve 62, the moving distance of the foam from the water surface L to the waste storage unit 6 is always appropriate. The distance becomes a fixed distance, and bubbles having a high ratio of waste can always be stored in the waste storage section 6. In addition, the foam (filtration) stored in the filth storage part 6 is discharged to the filth discharge means
4, it is not necessary to remove the waste storage part 6 to collect the stored foam, and the waste removal device 1 can be removed with a small amount of trouble.
Can be used continuously.

Note that the flow suppressing member 4 shown in the present embodiment is
0 is a spiral member 40b of a plate material around the cylindrical member 40a.
Are joined, but various other shapes are also applicable. The flow suppressing member 40 may have any shape as long as the time required for moving the foam in the foam discharging unit 5 is long, for example, a shape in which the foam is spirally moved by a pipe wound in a coil shape. Or, or, by forming a partition over a plurality of upper and lower steps so as to have a plurality of rooms, and by arranging the opening holes near the left and right end portions of the partition by right and left for each step, the bubbles are moved left and right alternately Such a shape may be used.

Further, the pressure adjusting means 51 is not limited to the manual valve operation shown in the embodiment, but may be, for example, a structure provided with a back pressure valve which is in communication with a predetermined pressure. In addition, the pressure adjusting means 51 only has to keep the height (water level) of the water surface L in the water storage section 4 substantially constant. For example, a detecting means for detecting the water level and an electrically controlling flow rate are provided. A flow control valve (for exhaust and drainage) that can be adjusted, and a control means are provided, and the flow control valve is adjusted from the water level detected by the detection means, and the control means controls the water level so that the water level always becomes a predetermined height. It may be configured. Thereby, the water level of the water storage section can be automatically adjusted, so that the continuous operation of the device can be more easily performed.

In addition, the waste discharging means 54 is not limited to the structure shown in the embodiment, and various structures can be applied. May be configured to periodically discharge the foam (dirt) stored in the container to the outside, or may be configured to include a suction pump to forcibly discharge and collect the stored dirt. By using such a configuration, it is possible to provide an apparatus that performs continuous processing with less labor.

In the present embodiment, the Venturi tube 15 and the air stone (not shown) are used as the means for generating the micro-bubbles. Here, the air stone determines the amount of the micro-bubbles generated in the Venturi tube 15. Used to supplement. That is, depending on the conditions used, microbubbles may be generated only by the venturi tube 15. Conversely, a method in which microbubbles are generated only by airstone without using the venturi tube 15 may be used. Furthermore, the method of generating microbubbles is not limited to the method using the Venturi tube 15 and the air stone, but also includes a method of generating microbubbles by a shear flow of a rotating impeller that supplies gas to an impeller of a pump, and a method of generating gas with gas. Various methods such as a method in which mixed water is dropped to generate micro bubbles are applicable.

[0035]

As described above, claims 1 and 2
The waste removal device according to the above, the flow suppression member is disposed in the foam discharge portion, since the movement of the foam is suppressed by the flow suppression member, the movement time of the foam to reach the waste storage portion becomes longer,
During this movement, the moisture contained in the foam escapes, and the foam having a low moisture content and a high proportion of contaminants is stored in the waste storage section,
Bubbles with a high proportion of contaminants can be efficiently collected without increasing the size of the apparatus. In addition, since the water content of the stored bubbles is reduced, the decrease in water in the water tank is suppressed, so that the frequency of operations such as refilling water in the water tank is reduced.

According to the third aspect of the present invention, since the foam is spirally moved in the foam discharge portion by the flow suppressing member, the moving distance of the foam can be effectively increased, and the moisture of the foam is released. Thus, foam with a high ratio of waste can be efficiently collected. In addition, since it can be implemented by arranging a spiral flow suppression member in the current bubble discharge unit,
The foam moving time can be easily increased without increasing the size of the apparatus.

In the waste removing apparatus according to the fourth aspect , the pressure in the space in which the bubbles are interposed is adjusted by the pressure adjusting means to keep the water level of the water storage portion substantially constant. Is kept substantially constant, and the water content of the foam stored in the waste storage section can be made substantially uniform.
For this reason, it is possible to maintain efficient conditions for removing water dirt by the bubbles, and it is possible to always store bubbles having substantially the same dirt concentration. further,
Since the water level can be adjusted by the pressure adjusting means in accordance with the liquid supply capacity of the water supply means, the liquid supply capacity required for the supply means can be set widely, and various liquid supply capacities having different liquid supply capacities can be set. Flexible supply means. Also, in cases where a large amount of foam is generated due to the type of food used in the water tank, the amount of water and the percentage of water stored in the waste storage area can be adjusted by lowering the water level using pressure control means. It is possible to reduce the amount of water in the aquarium.

In the waste removing apparatus according to the fifth aspect , the stored foam is pushed out to the outside by the pressure inside the storage part and discharged by the waste discharging means, so that the stored foam (dirt) can be removed without removing the waste storage part. ) Can be discharged to the outside. For this reason, the labor involved in discharging the waste can be omitted, and the continuous waste removal processing can be easily performed.

[Brief description of the drawings]

FIG. 1 is a schematic configuration diagram showing a state where a waste removal apparatus according to the present invention is attached to a water tank.

FIG. 2 is a longitudinal sectional view showing one embodiment of the waste removing apparatus of the present invention.

[Explanation of symbols]

 S water tank 1 waste removal device 2 water supply part 3 stirring part 4 water storage part 5 bubble discharge part 6 waste storage part 7 drainage part 40 flow suppression member 51 pressure regulating means 54 waste discharge means

Continuation of the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) C02F 1/24 A01K 61/00 A01K 61/02-63/06

Claims (5)

(57) [Claims] 1. A water storage section for taking in sewage and mixing gas to generate bubbles containing sewage on the water surface, and a foam discharge section connected to the water storage section and guiding the bubbles to the sewage storage section. In the filth removal device, the foam is moved in a spiral shape to the
The transfer of foam from the water storage section to the waste storage section in the discharge section
A filth remover characterized by disposing a flow suppressing member that extends the moving time and suppresses the movement of the foam. 2. A method for taking in sewage and mixing gas.
A water reservoir for generating foam containing dirt on the water surface;
A foam discharge unit connected to the water unit for guiding the foam to the waste storage unit
In the filth removal device comprising: the foam discharging unit, the foam is moved left and right alternately,
In the foam discharge section, the foam from the water storage section to the waste storage section
Flow suppression to increase the moving time and suppress the movement of the foam
A filth remover characterized by disposing members. 3. The waste removal apparatus according to claim 1, wherein the flow suppressing member is a spiral member that spirally moves the foam in the foam discharging section. 4. An aquarium used for breeding fish and waterside animals
Sewage from the water and gas
A reservoir for generating foam containing dirt, and above the reservoir
A sewage storage unit disposed in the storage unit and storing the foam;
A bubble discharge unit for guiding the wastewater from the water storage unit to the waste storage unit.
A waste removal apparatus comprising: a foam removing device that extends from a surface of the water in the water storage portion to the waste storage portion.
A lid that seals the existing space, and the opening area that penetrates through the lid and exits outside changes
By doing so, from the water surface in the water storage section,
By adjusting the pressure of the space where the foam reaches the storage part,
Pressure adjusting means for adjusting the water level of the water storage section.
A filth remover characterized by the following. 5. The waste storage device, wherein the waste storage device is disposed through the lid.
The waste stored in the storage part is pressed by the pressure inside the waste storage part.
Waste discharging means for discharging and discharging the waste to the outside;
Adjusting valve for changing the amount of waste discharged from the step
The filth removal device according to claim 4, characterized in that: