KR20030016324A - An apparatus of multi-storied canal-type closed recirculating system for aquatic animal culture with mineral particles and foam fractionator - Google Patents

Abstract

PURPOSE: Provided is an apparatus of multi-storied canal-type closed recirculating system for aquatic animal culture with mineral particles and foam fractionator which forms a breeding water bath in a multistage structure to use a facility in a cubic way so that it increases the ratio of the number of breeding to the facility. CONSTITUTION: The apparatus of multi-storied canal-type closed recirculating system for aquatic animal culture with mineral particles and foam fractionator comprises the parts of: an upper breeding water bath which is shown in a canal type; a lower breeding water bath which is formed in the lower part of the upper breeding water bath by a connection drainpipe(7) and in the same as the form of the upper breeding water bath; a circulation pump which is placed at one side of the lower breeding water bath and connected to the lower breeding water bath; a supply pipe(12) which is connected to the circulation pump; and the bubble separator(3) which is connected to the other edge of the supply pipe and placed at one side of the upper and the lower breeding water bath.

Description

An apparatus of multi-storied canal-type closed recirculating system for aquatic animal culture with mineral particles and foam fractionator}

The present invention relates to a multi-stage channel type circulating filtration aquatic animal breeding apparatus using a mineral fine particle and a foam separator, and in detail, a breeding tank is installed in layers and a breeding tank is formed in a waterway (水路, By improving the canal type, it plays the role of piping and waterway for breeding tank and breeding water circulation of aquatic organisms, and utilizes the area of breeding facilities in three dimensions and eliminates pipe and waterway equipment to reduce facility cost and facilitate management. The present invention relates to a multi-stage channel type circulating filtration aquatic animal breeding apparatus using mineral fine particles and foam separator.

Common breeding tanks for aquatic life are round, square or rectangular. The shape of these breeding tanks forces the tanks to be placed flat on the ground. In addition, in the case of a circulation filtration system using this type of breeding tank, it is inevitable to install piping and waterways necessary for the movement of breeding water in order to circulate the breeding water from the breeding tank to the purification facility and from the purification facility to the breeding facility again. Done. Therefore, in the form of a breeding tank, the area of the breeding facility cannot be used in three dimensions, and a considerable area is required for the installation of the piping and the waterway, which effectively restricts the efficient use of the area of the breeding facility and causes inconvenience in management.

Republic of Korea Utility Model Registration No. 20-258786 (announced on December 28, 2001) describes a multi-stage shellfish farming device consisting of a frame that is formed in the mounting structure for loading into one or more stages,

Republic of Korea Patent Publication No. 2001-0007909 is divided into a filtration tank, sedimentation tank, adsorption removal tank, microorganism production tank, water collection tank by using a diaphragm on the main body, and the primary filtering tank with a filtering filter is installed on the upper part of the filtration tank and the upper part of the sedimentation tank. In the seawater tank characterized in that it is installed in a multistage tank equipped with a filter filter, connecting the seawater of the catchment tank with a plurality of transparent pipes between the yarn-split tanks, and the green algae production tank with ultraviolet rays installed therebetween. Circulation filtration method of seawater has been described, but the conventional techniques as described above are related to a device for farming fish and shellfish in a simple multistage aquaculture farm, and thus the efficiency thereof is not practically used.

In addition, the results of the experiment breeding fish (flounder) by circulation filtration using mineral fine particles and foam separation device (Korean Society of Aquaculture 13, no.3 p223 ~ 230, September 2000). In this experiment, a flounder was installed in a circular breeding tank with a diameter of 4.8m, and the flounder was farmed. Based on the result, the Ministry of Maritime Affairs and Fisheries received the technical development fund in 2000-2002, and pilot-scale circular filtration breeding facility. Utilization of circulating filtered fish farming methods and facilities using mineral particulates and foam separators has been confirmed and reported (Development of circulating filtration fish farming set using mineral particulates and foam separators, Ministry of Oceans and Fisheries Report on Development Support Project, Daeha Fisheries 2002. 9). In this pilot facility, five sets of 7m diameter round breeding tanks are connected to one foam separator to purify and circulate the breeding water. The pilot plant produced 5,234 kg of flounder for one year (2001.9 ~ 2002.8), and its practicality was proved, and the possibility of breeding carp and tilapia among sea bream, sea bream, and freshwater fish was also confirmed. .

However, during the breeding of flounder in the pilot breeding facility, five breeding tanks and foam separators are connected to circulate the breeding water (report p21, Fig. 5, Fig. 8, Fig. 9). Large accumulations were observed. In the long term, this will negatively affect the water quality of breeding water. In addition, such waterways and piping are negative for the increase in facility cost and the efficient use of the facility area. In the foam separator, when the breeding water sent to the foam separator by the circulation pump is mixed with the air sucked from the venturi tube and sprayed to the center of the bottom, the flow of the upper breeding water surface of the foam separator in the forward direction (360 °) Scattering and weakening have been found to slow down the release of bubbles on the surface. As the foam separator grows in size, this phenomenon increases.

Therefore, it is necessary to improve the structure that minimizes the use of waterways and pipes required for the circulation of breeding water in the circulating filtration facility using mineral particulates and foam separators, and enables the rapid generation of bubbles generated by the foam separators. .

In order to solve the above problems, the present invention is the name of the patent application No. 3333693 filed by the applicant; Improved circulating filtration fish farming method of fish breeding water using mineral fine particles and foam separation device and its device (Patent No. 0334693), by improving the shape and arrangement of breeding tank, The present invention has been made in an effort to provide a multi-stage waterway type circulating fishery animal breeding apparatus using a fine particle and a foam separation device, which are structures for excluding use and shortening the discharge time of bubbles generated in the foam separation device. It is

1 is a general view of the general filtration fish culture

Figure 2 is a multi-stage waterway type circulation filtration aquatic animal breeding apparatus of the present invention

Figure 3 is a detailed view of the foam separator of the present invention

Figure 4, Figure 5, Figure 6 is a multi-stage waterway type circulation filtration aquatic animal breeding apparatus of the present invention

Status picture

Figure 7 is a multi-stage waterway type circulation filtration fishery animal breeding apparatus of the present invention

Another example photo

8 and 9 is a photograph of a conventional circulation filtration fish farming equipment example

<Description of Signs of Important Parts in Drawings>

Upper breeding tank (1), lower breeding tank (2), foam separator (3), circulation pump (4), mineral particulate supply pipe (5), supplement water supply pipe (6), recovery pipe (7), connecting water supply pipe ( 9), discharge pipe (10), bubble collection port (11), supply pipe (12), venturi tube (13), air inlet (14), guide tube (15), foam (16), foam separation tank (17), 1st partition 18, 2nd partition 19, discharge pipe 1 (10-1), valve 20

In order to achieve the above object, the present invention arranges a breeding tank having a long canal shape in an upper and lower layers, and installs a foam separator at one end of the breeding tank. It is a structure that flows from the foam separator to the upper breeding tank and the lower breeding tank in order to circulate back to the foam separator to purify the tank. It is a marine animal breeding facility integrating a waterway breeding tank and a foam separating device, which is characterized by a structure that minimizes the required piping by using it as a water channel necessary for circulation and directly connecting the foam separator to the breeding tank. In the foam separator installed at this time, the multi-stage channel-type circulation filtration system using mineral fine particles and foam separator to increase the purification efficiency by allowing the breeding water mixed with the air to be sprayed at a position biased to one side to speed up the discharge of generated bubbles. It relates to aquatic animal breeding device.

The breeding tank of the present invention is improved from a circular to a long canal to form a three-layered layer of water from the top to the bottom, and the breeding water mixed with air in a foam separator. The injection position of is to be installed at the position opposite to the bubble discharge position.

The present invention utilizes a waterway breeding tank as a breeding space by installing a long waterway breeding tank three-dimensionally in the upper and lower layers of rainwater, and arranges a foam separation device at one end thereof, and simultaneously serves as a water channel necessary for breeding water circulation. The need for waterways and piping was eliminated. The breeding water purified by the foam separator is supplied to the top channel breeding tank and flows through the breeding tank as if water flows into the channel, and flows to the lower breeding tank and flows to the lower breeding tank. It arrives at the end, and it is sent to the foam separator by the circulation pump, followed by the purification process, and the circulation process is supplied to the top breeding tank again. In other words, breeding aquatic animals (fish, shellfish, etc.) in the channel required to circulate the breeding water. In this way, space can be saved and facility area can be utilized in three dimensions, which greatly improves the ratio of farming area to the size of the farm.

By placing the spraying position of the mixed water mixed with air in the foam separator on the opposite side of the bubble outlet, the flow of the surface of the breeding water in the foam separator is directed in one direction (the foam outlet side), and the foam formed on the surface follows the flow. It moves quickly toward the outlet, increasing the efficiency of foam separation.

Mineral fine particles used in the present invention is any one or a mixture thereof selected from loess, kaolin, goto, lime, bentonite, zeolite and silica, fine particles suspended in breeding water because the surface area is very large compared to the volume Efficiently acts as a biofilter, thus eliminating the need for a separate biofilter. In addition, the fine particles of the mineral adsorbs the wastes such as solid organics, dissolved organics, pathogens, ammonia, etc. in the breeding water with a wide range of adsorption power. In this way, the fine particles adsorbed waste products and pathogens are separated and discharged out of the breeding facility through a foam separator, and thus, facilities required for controlling solid organisms such as sedimentation or strainer and pathogens such as ozone and ultraviolet ray are also unnecessary. In addition, the oxygen shortage in the breeding water is supplied incidentally during the aeration process included in the foam separation process, thereby reducing the need for a separate oxygen supply device. Therefore, the present invention is an efficient breeding water purification and reuse method consisting of a simple configuration of the suspension and foam separation process of mineral fine particles.

In circulating filtration, ammonia in breeding water is the first target to be removed because of its toxicity. Biological filtration is the only method currently used to remove ammonia in breeding water. This requires a medium to which nitrifying bacteria can attach, either fixed or liquid, and a separate facility (biofiltration) to which it can be mounted. In addition, in order to maintain the activity of these nitrifying bacteria themselves, related factors should be managed. The concentration and absolute amount of ammonia itself are related to water temperature, dissolved oxygen, water flow and the amount of solid organics (POC) and dissolved organics (DOC). In summary, the removal of ammonia by biofiltration presents several challenges for installation and management.

There is a report that ocher is already popular as a panacea, and it is already used for red tide control in the fisheries field, and there is a possibility that it can be used to control the flounder's squirrel. There is also a lot of unconfirmed information about the wide range of adsorption capacity of loess. Mineral particles, including ocher, have a very large surface area of 600 m2 / g for calcined ocher (less than 44μ) (Lee, 2000). Clay (2 μm or less) not only grows on its own with a lamellar crystal structure, but also has the ability to absorb other molecules, especially mica type clays, which have more than 800 species between their silicate layers. Derivatives of organic molecular patterns have been identified, and the modifications of these organic molecular patterns act like templates, including immobilizing ammonia ions and alcohol molecules with organic molecules (Watson. 1979). ).

Clay (primarily SiO ₂₎ that can be tried for the purpose of purification of the number of breeding a mineral particulate, Goto _{(苦土, dolomite, MgCO 3 ·} CaCO 3) and kaolin (mainly Al ₂ O _3), lime, bentonite, zeolite In this breeding experiment, two kinds of processed loess of less than 50μ and goto were used. During the breeding experiment, the ammonia concentration of the breeding water did not exceed 2mg / l. This confirms that ammonia has been removed through some path. It may be adsorbed on the surface of the mineral fine particles and may be decomposed by activated sludge using these fine particles as a nucleus. However, it is difficult to estimate that all the ammonia in the breeding water has been decomposed through the process of active sludge since most of the mineral particulates sprayed on the breeding water were discharged out of the breeding facility through the foam separator within 12 hours. Therefore, it is presumed that the mineral fine particles partially adsorbed ammonia. To date, there is no doubt that the mineral particulates suspended in the stock could contribute in some way to the removal of ammonia from the stock. Therefore, it is considered that the problem of turbidity and removal of ammonia in breeding water using mineral particles cannot be a limiting factor.

In the present invention, if suspending mineral particles in the breeding water to purify the breeding water is one axis of the breeding water reuse method, another important axis corresponding thereto is a foam fractionator.

Foam separators are widely used to separate solutes from solutions and specific materials from liquid mixtures. There are only 92 uses to separate elements and compounds from liquids, and they are used to separate Ca, Cu, Mg, Mn, etc. from seawater (Rubin and Goden, 1962). The suspended solids are separated from the breeding water (Wheaton, 1977) and the organic solids (POC) are removed (Spotte, 1979). In addition, the number of floating microorganisms in the breeding water was reduced (Schlesner and Rheinheimer, 1974), and the entrepreneur was able to reduce the bacterial count from 22,100cells / ml to 220cells / ml with a venturi-based foam separator in the circulating filtration method. (Dwivedy, 1793). By removing dissolved organic matter (DOC) from fish and shellfish breeding methods (Dwivedy, 1973; Spotte, 1979; Lomax and Wheaton, 1975), it suppresses ammonia generation by bacterial decomposition of protein components (Dwivedy, 1973) And COD, alleviate the accumulation of nitrates (Dwivedy, 1973). The pH of the breeding water is controlled by removing dissolved organic matter (DOC) in the form of organic acids (Dwivedy, 1973). Part of the ammonia in the breeding water may be removed by aeration or foaming of the foam separator (Wheaton. 1977).

The foam separator not only removes dissolved organic matter (DOC) and solid organic matter (POC) from the breeding water, but also has an effective aeration function.It is effective when applied to seawater and does not require large space unlike biofiltration facilities. Easy to manage It is not used as a substitute for biofiltration but in connection with it (Huguenin and Colt, 1989). In fact, the IBK system has a foam separator installed in front of the biological filtration facility, and it has a great effect.

However, in the breeding method of the present invention, the biological filtration facility is omitted as a configuration in which the breeding water is pumped from the drainage port of the breeding tank to the foam separator and then circulated to the breeding tank. The removal of ammonia, which is a function of the biofiltration system, is thought to be the function of the mineral fine particles suspended in the breeding water and the foam separator which separates and discharges it from the breeding water. During the breeding period, the ammonia concentration in the breeding water was kept below the allowable level.

The foam separator was also confirmed to supply oxygen to the breeding water incidentally during the aeration process. Dissolved oxygen in the breeding water drained from the breeding tank was 50% saturation, but breeding water circulated through the foam separator became 85% saturation. This is thought to reduce the need for a separate oxygen supply system.

The present invention lengthens the vertical axis of the foam separator in order to extend the contact time between the breeding water and the air bubbles, the air sucked through the intake pump by the venturi tube installed in the upper portion of the equipment is mixed with the breeding water and descends to the bottom and then rises again. It is a structure to let. Thus, the contact time is maximized, and as the pressure goes down to the bottom, the water pressure increases to improve efficiency. The breeding water and the air bubbles that have reached the upper end are raised in the outer cylinder with a large cross-sectional area, and the breeding water descends below the rising speed of the air bubbles, and the air bubbles separated from the watering water form bubbles on the surface of the water. After being separated from the breeding water, it is discharged to the outside of the foam separator with a small amount of breeding water.

The long canal type breeding tank of the present invention is installed up and down in an excellent layer, that is, in two, four or six layers. Install the separator (Figure 1). The breeding water purified in the foam separator is supplied to one end of the top breeding tank, flows to the opposite end, and flows down to the breeding tank directly below. This breeding water flows down the breeding tank downstairs and reaches the end where the foam separator is located. It is sent to the foam separator by the circulation pump for purification and then circulated to the top breeding tank. Waste from the breeding water separated from the foam separator is discharged out of the breeding facility together with the discharge water in the form of foam. Since the long channel breeding tank is excellent, the breeding water supplied from the foam separator to the top breeding tank flows through the bottom breeding tank to the end where the foam separator is installed, and the foam separator is separated by the circulation pump. It is sent to the unit, cleaned and circulated again. The installation of the breeding tank in the form of a long channel of rainwater serves as both the role of the breeding tank and the pipes and channels necessary for the circulating process of the breeding water, thereby enabling the circulation of the breeding water without any additional plumbing facilities or waterways. The breeding water introduced into the foam separator (3) by the circulation pump (4) is sucked into the air in the venturi tube 13, sprayed to the bottom of the foam separator in a state in which the breeding water and air are mixed to rise to the top do. In the upper part of the foam separator, the foam rises to the surface, and the breeding water descends to the lower part and circulates in the breeding tank. By directing the position where the breeding water mixed with the air sucked in the venturi tube is sprayed to one side of the foam separator, guides the breeding flow of the upper part of the foam separator to the opposite side and moves the bubbles generated in the surface layer toward the outlet port by the flow. This is to shorten the time from foam generation to discharge.

Features of the present invention as described above

First, by installing the breeding tank three-dimensionally up and down, it is possible to secure a relatively large breeding area (2 times in the 2nd stage, 4 times in the 4th stage ..)

Second, by installing a long water channel breeding tank with excellent water and a foam separator on one side, the breeding tank is used as a water channel (pipe) for the purpose of breeding water and circulation. Eliminates the need for

Third, after the breeding water circulated to the foam separator by the circulation pump is mixed with the air sucked from the venturi tube, the surface water is injected into the foam separator by biasing the position injected from the bottom of the foam separator to one side. Formed on the opposite side to facilitate the discharge of bubbles formed on the surface.

Hereinafter, the present invention will be described in detail with reference to the following examples.

Example

Two long channel breeding tanks 0.8m in width, 0.4m in depth and 20m in length are installed on the upper and lower two floors (1, 2) at a distance of 0.6m and a foam separator having a width of 0.5m and a length of 1m and a height of 2m (3m) ), And after the breeding water mixed with air in the foam separator (3) is sprayed at a position opposite to the bubble outlet, the purified water in the foam separator (3) is the upper breeding tank ( 1), and then suspending the bentonite particles in the breeding water, flowed to the other side to flow to the lower breeding tank (2), flowed through the lower breeding tank (2) to reach the end of the foam separator (3) and then circulating pump (4) After circulating to the foam separator (3), in the foam separator (3) when the breeding water flows into the cylindrical Venturi tube (13) through the supply pipe 12 (intake due to the venturi phenomenon ( Iv) suction the air through the air inlet 14 using an aspiration pump. The bubble is generated and sprayed with a strong pressure to the venturi discharge pipe (13), guided to the bottom of the foam separator through the venturi guide pipe, and then again to the top of the venturi guide pipe (15) to rise to the top The air flow rises to the outer upper portion of the venturi guide tube 15, and the air velocity drops from the upper portion of the venturi guide tube 15 to the bubble 16, and is discharged through the collecting port 11 together with the discharge water by natural pressure. 10) discharged to the purified breeding water is lowered through the lower portion of the second partition 19, circulated to the upper breeding tank (1) by the recovery pipe (7) installed on one side of the flounder (flounder) Breeding (Fig. 4, Fig. 5, Fig. 6).

The circulation of breeding water ranged from 20 to 40㎥ / hr, and received 10,000 flounder fry (10cm) to start breeding. As the flounder grows, it continues to boil and maintains the living biomass at 600-800 kg. During the breeding period, the water quality was good and the damage from fish disease was minimal. 1 year (2001.11 ~ 2002.10) breeding produced a total of 1,123kg.

Experimental Example

The mineral fines used in the experiment were powders used as livestock feed additives supplied to the market. The particle size was less than 50μ and 400g was sprayed directly into the breeding water twice a day at 12 hour intervals.

The feed was used for pelleting pellets for flounder. Three times a day up to 50g, two times up to 100g, and then once. The composition of the feed is shown in Table 1.

Table 1. Composition of the feed used for the experiment

Ingredient Ingredient Crude protein 54% Phosphorus 1.6% Crude fat 12% Viatmin A 10000 IU Ashes 8.5% Viatmin D3 1750 IU Humidity 10% Viatmin E 200mg Crude fiber 1.5% Viatmin C 250mg

The flounder used in the breeding test was a self-produced seedling. At the start of the experiment, the average weight was 10g, 10,000 animals were received, the total weight was 100kg, and the stocking density was 3.125㎏ / ㎡. The animals were reared for 12 months and 200 randomized animals were weighed 6 times at 2 month intervals to determine growth.

During the breeding test, the water temperature and dissolved oxygen of the breeding water were YSI-55 DO meter and the pH was Fisher Scientific Co. It was measured by PH meter 900. Ammonia was released every 10 days at Kyoritsu Chemical-Check Lab. Corp. WAK-NH® test kit was used. A road sign was installed at 20cm above the center surface of the breeding tank to turn on at 06:00 and turn off at 18:00.

result

1. Growth and Fish Bottles

The growth-related results of the flounder during the breeding experiment are shown in Table 2.

Fish disease was observed twice during breeding, but the frequency and degree of damage were significantly less than that of general fish farms or circular filtration using round tanks of the same period.

It was a range to do.

Table 2. Results of the rearing experiment

Day Beginning 60th 120th 180th 240th 300th 360th No. of fish 10,000 9,972 5,000 2,000 1,600 1,300 1,165 Body weight mean (g) 10 65 167 326 493 645 726 total (㎏) 100 648 835 652 789 839 846 Stocking density (㎏ / ㎥) 3.13 20.25 26.09 20.38 24.66 26.22 26.44

2. Water quality

Breeding water temperature was maintained at 9.4 ~ 24.7 ℃. No change was observed in food intake or behavior when the water temperature was changed in the range of 1 ° C for 12 hours.

The pH was in the range of 7.15-7.20 throughout the period.

Dissolved oxygen gradually decreased from 80% to 65% of the saturation in the supplementary water (6) and from the upstream of the 2nd breeding tank to the downstream of the 1st breeding tank depending on the position (1, 2) in the breeding tank.

NH₄ by simple colorimetry was less than 5 ppm during the test period. Table 3 shows the general water quality measured by the National Fisheries Research and Development Agency, East Sea Fisheries Research Institute, Pohang Branch. According to this, the ammonia concentration of the whole method was less than 2.0 ppm, and the index items of general water quality were also below the allowable values.

Table 3. Concentrations (ml / l) of COD, SS and nitrogen compounds in culture water of the system on 69th day at 6 a.m. just before feeding and mineral particle diffusing

COD SS NH ₄ -N NO ₂ -N NO ₃ -N T-N Remarks Make-upseawater 0.88 0.4 0.003 0.002 0.353 0.358 Fig. 1, ① Drain formrearing tank 1.82 4.7 1.629 1.629 0.189 2.175 Fig. 1, ④ Returningwater 1.78 4.6 1.885 0.384 0.155 2.424 Fig. 1, ⑦ Drain fromfoamfractionator 1.97 8.6 1.958 0.420 0.132 2.511 Fig.1⑧

3. Mineral particulate

The bentonite used as the mineral fine particles was sprayed on the breeding water and spread evenly over the front of the breeding tank. The bentonite was circulated through the foam separator with the breeding water without remaining at the bottom, and some were discharged. Immediately after 40 ppm was sprayed, turbidity was so high that the fish at the bottom of the breeding tank could not be seen. Over time, the transparency became clearer and clearer enough to clearly identify the fish on the flounder at the bottom of the breeding tank until after 12 hours and before the next spraying (Fig. 1).

Abnormal phenomena were not observed in the spraying of mineral particles or the behavior of the flounder during breeding due to the change in turbidity. Turbidity and behavior were irrelevant so that individuals who floated on the surface of the breeding water immediately after spraying consumed the pellet feed on the surface.

4. Foam separator

Except immediately after feeding the breeding tanks, a large amount of foam continued to be generated and discharged. In addition to separating and discharging waste and mineral fines by foam, the foam separator had a saturation of 50% of the dissolved oxygen in the effluent of the breeding water, but also increased the saturation of the circulating feed water to 85%.

The results of observing the degree of removal of the combination of mineral fine particles and waste products from the breeding water through the foam separator according to the time of day are shown in Table 4. The degree of removal was measured as turbidity and the fo (fi / fi) of the discharge water (fo) versus the feed stock (fi) in the foam separator is 4.27.

Table 4

fi: Turbidity of incoming breeding water, Fo: Turbidity of discharged water

In the method of breeding of the flounder breeding experiment, the principle of the purification method for the reuse of the purified water is fundamentally different from that of the existing circulation filtration method. All wastes produced as a result of breeding were purified only by the functions of mineral fine particles and foam powder suspended in breeding water, and the flounder could be raised normally.

Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.

Figure 1 is a general circulating filtration fish culture overview, Figure 2 is a multi-stage waterway type circulation filtration fish breeding apparatus of the present invention overall view, Figure 3 is a detailed view of the foam separator of the present invention, Figure 4, Figure 5, Figure 6 is a multi-stage waterway type circulating filtration fisheries animal breeding device state of use of the present invention, Figure 7 is another example of a multistage waterway type circulating filtration fishery animal breeding apparatus of the present invention, Figure 8 and Figure 9 is a conventional circulation Example of a filter-type aquaculture animal farming equipment is shown in the picture, upper breeding tank (1), lower breeding tank (2), foam separator (3), circulation pump (4), mineral particulate feed pipe (5), supplemental water supply pipe (6), breeding water supply pipe (7), upper and lower connection water supply pipe (9), discharge pipe (10), bubble collection port (11), supply pipe (12), venturi pipe (13), air inlet (14), guide pipe (15), foam (16), foam separation tank (17), first partition (18), second partition (19), discharge pipe 1 (10-1), valve 20 are shown.

Looking at the structure, as shown in Figure 2, the present invention is formed on one side of the long channel (upper canal) upper breeding tank (1), and the upper breeding tank (1) and to supply the loess and goto The mineral particulate supply pipe (5) and the supplementary water supply pipe (6) for supplying breeding water, and the water supply pipe (7) connected to the inlet of the upper breeding tank (1), the lower layer of the same shape as the upper breeding tank (1) Breeding tank (2), the circulation pump (4) installed on one side of the lower breeding tank (2) and connected to the lower breeding tank (2), supply pipe (12) connected to the circulation pump (4), and Mineral fine particles and foam separators, which are connected to another end of the supply pipe 12 and consist of foam separators 3 installed on one side of the upper and lower breeding tanks 1 and 2 arranged in multiple stages up and down. It is a multi-stage waterway type circulation filtration aquatic animal breeding device.

FIG. 3 shows the foam separator 3 in detail, wherein the foam separator 3 has a foam separator 17, a foam separator 17 with a central portion, and two lower portions at left and right sides of the central portion. The closed first partition 18 and the lower portion of the second partition 19 provided with a predetermined space spaced apart from the bottom is formed,

The venturi tube 13 connected to the supply pipe 12 and the air inlet 14 through which the air is introduced are formed at the upper portion of the foam separation tank 17 and connected to the middle one side of the venturi tube 13, A venturi tube guide tube 15 connected to the lower portion of the venturi tube 13 and a venturi guide tube 15 extending to an inner inner lower portion of the first partition 18 formed on the right side of the foam separation tank 17. And a collecting port 11 installed at an inner upper portion of the central portion and the second partition 19, and a discharge pipe 10 formed through the lower one side and the lower portion of the central lower portion of the collecting hole 11 to discharge bubbles and discharged water 10. ) Is connected to the discharge pipe 10, the discharge pipe 10-1 installed under the foam separation tank 17, a valve 20 formed at one side of the discharge pipe, and the second partition 19. The lower part of the is spaced at regular intervals, and is installed on one side upper part of the outer side of the second partition 19. It said, it can be seen that this consists of a feed pipe (7) for circulating the purified water tank can be bred in the breeding upper layer.

4 to 6 is a picture showing the state of use of the multi-stage aqueduct type circulation filtration aquatic animal breeding apparatus of the present invention, Figure 7 is a four-stage as another example of the multi-stage aqueduct type circulation filtration aquatic animal breeding apparatus of the present invention It can be seen that the multi-stage channel type circulating filtration fishery animal breeding device is installed.

The method of use is when the breeding water flows into the cylindrical Venturi tube 13 through the supply pipe 12 by the circulation pump 4 connected to the lower part of the lower breeding tank 2, A) using air (aspiration pump) to inhale air through the air inlet (14) to generate air bubbles to the venturi discharge pipe (13) with a strong pressure, through the venturi guide pipe to the bottom of the foam separator after The back of the venturi guide tube 15 rises to the upper portion and rises to the upper portion. The venturi guide tube 15 rises to the upper portion of the venturi guide tube 15 and overflows the upper portion of the first partition 18 to the center portion. And the flow rate drops from the uppermost part to the air bubbles rising to the bubble 16, and discharged to the discharge pipe 10 through the collecting port 11 with the discharge water by natural pressure, the purified breeding water is lowered to the second Through the lower part of the partition (19) In the upper breeding tank (1) by feeding the fine-grained feed tank (5) through the fine particle supply pipe (5), supplying the loess and loess is suspended in breeding water, in the foam separator, solid oil, inorganic matter, dissolved organic matter, Pathogens, ammonia, etc. are adsorbed on the surface of the foam to form bubbles and separate from the breeding water.

The present invention as described above, by installing the breeding tank in a multi-layer structure of the upper and lower, it is possible to use the facility area of the aquaculture farm three-dimensionally, significantly increase the ratio of the breeding area to the facility area to improve the economic efficiency, By installing a long breeding tank up and down, and installing a foam separator at one end, it eliminates the need for a separate pipe or water channel for circulating discharged water, which saves facility costs, is advantageous for space utilization, and is easy to manage. It is an advantage to improve the breeding water purification efficiency of the foam separator by shortening the discharge time of the foam formed by installing the water injection position on the opposite side of the bubble outlet position.

Claims (4)

In the multi-stage channel type circulating filtration aquatic animal breeding apparatus using mineral fine particles and foam separator, Long canal type upper breeding tank (1), and the lower portion of the upper breeding tank (1) formed of a connecting drain pipe (7), the lower breeding tank of the same shape as the upper breeding tank (2) ), A circulation pump 4 installed at one side of the lower breeding tank 2 and connected to the lower breeding tank 2, a supply pipe 12 connected to the circulation pump 4, and the supply pipe 12. It is connected to another end of the fine particles and foam characterized in that it consists of a foam separation device (3) installed on one side of the upper and lower layer breeding tank (1, 2) arranged in multiple stages up and down (up and down) Multi-stage channel type circulating filtration fishery animal breeding device using a separation device. The foam separation apparatus 3 is a foam separation tank 17, the foam separation tank 17 has a central portion, and the first partition 18 and the lower portion having two lower portions blocked at left and right sides of the central portion. It consists of a second partition 19 provided with a bottom spaced apart from a certain space, Venturi tube 13 is connected to the supply pipe 12, the air inlet 14 is formed to be connected to the middle one side of the venturi tube 13, the air flows in the upper portion of the foam separation tank 17, A venturi tube guide tube 15 connected to the lower portion of the venturi tube 13 and a venturi guide tube 15 extending to an inner inner lower portion of the first partition 18 formed on the right side of the foam separation tank 17. and, A collection port 11 installed at an inner upper portion of the central portion and the second partition 19, a discharge pipe 10 formed through one lower portion of the collection hole 11 and a bottom portion of the central portion of the collection hole 11 to discharge bubbles and discharge water; , A discharge pipe 1 (10-1) installed at a lower portion of the foam separation tank 17, a valve 20 formed at one side of the discharge pipe 1 (10-1), and the first pipe connected to the discharge pipe 10. The lower part of the two partitions 19 is spaced at regular intervals, is installed on one side of the outer side of the second partition 19, characterized in that it consists of a recovery pipe (7) for recovering the purified breeding water Multi-stage waterway type circulation filtration aquatic animal breeding apparatus using a fine particle and a foam separator. In the circulating filtration fish farming method of fish breeding water using mineral fine particles and foam separator, A plurality of long channel breeding tanks are installed up and down, and a foam separator 3 is installed at one end thereof, and the breeding water mixed with air in the foam separator 3 is sprayed at a position opposite to the foam outlet. After that, the breeding water purified in the foam separator (3) was fed to the upper breeding tank (1), and then suspended in the breeding water of two types of loess (less than 50 µm) and fine soil (less than 50 µm). Later, after flowing down to the lower breeding tank (2) and flowing down the lower breeding tank (2) to reach the end of the foam separator (3) and circulated to the foam separator (3) with a circulation pump (4), In the foam separator (3), when the breeding water flows into the cylindrical Venturi tube 13 through the supply pipe 12, air is introduced into the air by using an inspiration pump due to the Venturi phenomenon. Suction through the (14) generates bubbles to venturi discharge pipe (13) By injecting at a high pressure, it is guided to the bottom of the foam separator through the venturi guide tube, and then back to the top of the venturi guide tube (15) to rise to the top, the outer top of the venturi guide tube (15) As the flow rate drops to the uppermost portion, the air velocity drops to the bubble 16 and is discharged to the discharge pipe 10 through the collecting port 11 together with the discharge water by natural pressure, and the purified breeding water is The fish breeding water using the mineral fine particles and the foam separation device, which descends and circulates through the lower part of the second partition 19 to the upper breeding tank 1 by the recovery pipe 7 installed on the upper side. Circulation Filtration of Fish Farming Methods. The method of claim 3, wherein the multi-stage breeding tank is two or more stages, and the selected one of the multi-stage breeding tank is excellent (偶數), characterized in that the circulating filtered fish farming method of fish breeding water using the fine particles and the foam separation device.