SU1711751A1 - Fish growing reservoir - Google Patents

Abstract

The invention relates to fish farming, in particular to the industrial cultivation of fish in tanks, and is aimed at providing optimal conditions for the cultivation of fish throughout the entire production cycle. To do this, in a fish-growing device, which includes a tank (P) 1 for fish, the bottom of which has inclined walls forming a cavity (P) 3 for collecting sediments, means for supplying water, pipelines 10 with inclined nozzles 11 for flushing soils from walls , a dirt bucket in the form of a hydrocyclone 8, communicated with P 1 by means of a drain pipe 12, and mesh barrier 4, in P 1, vertical partitions 5 are additionally mounted to move, dividing P 1 into compartments 6 of the required volume. The water supplying means contains one or two perforated pipes 7 fixed in the upper part of the side walls P 1. Mesh barrier 4 is fixed above P 3 to form a false bottom, and through the drain pipe 12 connected directly to P 3 by means of several pipes 13, uniform removal of contaminants. Partitions 5 can be made permeable. The tank can be equipped with perforated piping 15 with means 16 and 17 connecting it to the air or oxygen supply system, which allows to clean the mesh fence 4. Pipelines 7 should be fixed below the expected water level and made with two rows of holes that in the first row the lines passing through the centers of the pipes / pipe and the hole are at an angle of 90 °, and eo: at the second — at an angle of 60 °. to the horizontal plane. This contributes to the elimination of stagnant zones in P 1. 3 h. f-ly, 3 ill. sl c VI 1sl

Description

This invention relates to fish farming, in particular to industrial farming. fish in reservoirs.

A device for growing fish is known, comprising a pool for fish equipped with vertical partitions installed with the possibility of separating

its volume on a number of compartments and their removal to increase the volume of the compartments as the fish grows, and the basin has a false perforated bottom.

In this device, the partitions are not movable, but removable, with the result that as the fish grows

the basin is not used effectively, and a false bottom contains a layer of gravel or other filtering material, which contributes to the retention, not only of food debris, but also of waste and impairs water purification.

A device for growing fish is known, comprising a reservoir equipped with vertical partitions mounted to move along it.

However, in this device, partitions are used only to move the fish in the desired direction, for example when fishing.

There are known devices for growing fish in the form of a tank with a false perforated Bottom with a filtering layer for passing contaminants into the lower part, equipped with means for supplying water, removing contaminants, and a device for growing fish containing a sectional basin, one of which has sections the bottom of the sloping walls, forming a dirt collector, and above the latter is installed mesh fence-false bottom, while the device is equipped with a means for aerating water, formed by a piping system with spray E and the conduit for removing contaminants placed in zesbornike c.

A disadvantage of the known devices is that in the first of them, when discharging contaminated water through a perforated bottom by diffusion of contaminated water, the filtration layer delays not only large particles, but also live food, and in others the net fencing is too large, not equipped with both for cleaning the net and the bottom under the net where dirt accumulates due to low water velocities.

All this leads to a deterioration of the conditions of the fish.

Closest to the proposed device is a device for growing fish, including a tank for fish, the bottom of which has inclined walls that form a cavity for collecting sediments, means for supplying water to the tank / pipelines with inclined nozzles located at the bottom of the tank and serving for flushing contamination from the sloping walls of the bottom, a sump collector in the form of a hydrocyclone, communicated with the reservoir through a drain pipe, and a mesh barrier to prevent the ingress of fish and the drain pipe . In this known device, it is impossible to create optimal conditions for growing fish throughout the entire production cycle, since it does not provide for an increase in the volume of water containing fish as the latter grows, and transferring fish from one tank

in the other, fish production is negatively affected.

In addition, this device does not provide sufficient water exchange, maintain the oxygen content at the required level, and the issue of the removal of metabolic products as fish grows is not fully resolved.

The aim of the invention is to provide optimal conditions.

growing fish throughout the entire process cycle.

The goal is achieved by the fact that in a fish-growing device, which includes a fish tank, the bottom of which has inclined walls that form a cavity for collecting sediments, means for supplying water to the tank, pipelines with inclined nozzles located in the lower part of the reservoir and serving flush

contamination from the sloping bottom walls, a sampling tank in the form of a hydrocyclone, communicated with the reservoir through a drain pipe, and a mesh barrier to prevent fish from getting into

drain pipe, the tank is equipped with vertical partitions installed with the possibility of moving along the tank to divide it into compartments required by the growing conditions

volume, the means for supplying water to the tank contains one or two perforated pipes fixed in the upper part of the side walls of the tank, the mesh fencing is fixed above the cavity for

collecting sediments with the formation of a false bottom, and the drain pipe is connected directly to the cavity for collecting sediments using one or several evenly distributed along the length of the tank

nozzles.

Vertical partitions can be made of permeable material, and the device is equipped with a perforated conduit with means for

connecting it to the system supplying oxygen or air mounted under the mesh barrier.

In addition, each perforated conduit means for supplying water to

the tank can be fixed below the intended level of filling with water and made with two rows of holes, with the holes made so that in one row the lines passing through the centers of the pipeline and holes are at an angle of 90 °, in the other - at an angle of 60 ° to the horizontal plane.

Figure 1 shows the device, a general view; figure 2 - section aa in figure 1; on fig.Z - section bb on fig.1.5

The device for growing fish includes a tank 1 for fish from a non-toxic material, the bottom of which has two inclined walls 2, forming a cavity 3 for collecting sediments, a net fence 4, 10 located above cavity 3 and forming a false bottom; vertical partitions 5 installed in the tank 1 with the possibility of moving to divide it into compartments 6 of the required volume for growing conditions 15 (volumes a, b, c); means for supplying water to the tank 1 containing one or two perforated pipes 7 which fixed in the upper part of the side walls of the tank 1 and 20 are equipped with regulating valves 8, as well as a sampling tank in the form of a hydrocyclone 9 and a pipeline 10 with inclined nozzles 11, located in the lower part of the tank 1 and serving to flush out the soils with 25 walls 2.

Water with sediments from tank 1 to the hydrocyclone 9 is discharged through a drain pipe 12 connected directly to cavity 3 for collecting sediments with one or several evenly distributed along the length of tank 1 nozzles 13, while the input ends of nozzles 13 can be located the end points of the compartments 6. This leads to a uniform and constant removal of water and pollution along the entire length of the reservoir 1.

To prevent fish from getting into the drain pipe 12, the mesh barrier 4, which is above-mentioned, is flattened or angularly shaped, depending on the characteristics of the growing technology and the type of fish. The most simple is a flat fence in the form of a rigid steel frame. - 45 th or polymer mesh. From these frames, laid on the bottom, a single barrier is formed along the entire tank 1.

The size of the barrier cells is chosen taking into account the size of the fish and it can vary by 50 seconds upwards, in each subsequent compartment 6, where the fish is larger.

Depending on the length of the reservoir, the water supply to the pipeline 10 may be carried out in one or more. 55 nozzles with control valves 14, which are connected to the pipeline 10 evenly along its length.

Vertical partitions 5 should be made of permeable mat

teriala. The device can be equipped with a perforated pipe 15 with means 16 and 17 (valves) for connecting it to an air or oxygen supply system. Pipeline 15 is placed under the mesh barrier 4 and its main function is to supply air for cleaning, if necessary, a mesh barrier, as well as blowing the bottom layer, which allows the remains of dead fish to rise to the surface, which can lie on the mesh barrier 4 and decompose , worsening the living conditions of live fish. In order to aerate the water, the pipeline 15 may be used in the event of the circulation of water in the tank 1.

It is advisable to fix the perforated pipes 7 below the expected level of filling with water.

Each perforated pipeline 7 may contain two rows of holes, which are designed so that in one row the lines passing through the centers of the cross sections of the pipeline 7 and the holes are at an angle of 90 ° and in the other at an angle of 60 ° to the horizontal plane. This leads to the formation of water flows along the sloping walls of the bottom 2 and to a good mixing of water in the central part of the tank 1, which makes it possible to eliminate stagnant zones with low oxygen content in this part and wash the sediments (pollution) from the sloping walls of the bottom 2 of the tank 1.

The operation of the fish-growing apparatus is as follows.

In the case of industrial polycyclic fish farming, tank 1 is divided by partitions 5 into several compartments b (of the same or different volumes a, b, c, depending on the specific conditions of growing planting material and marketable fish).

In case the technology is used for growing, which involves dividing the growing period into three identical stages, each month in duration, proceeding successively in three compartments with different volumes, then before starting work, for example, two partitions 5 are pressed to one (left) the end wall of the tank 1, and from the third partition 5 form the first1 compartment b with volume a (figure 1).

At the beginning of the cycle, this first compartment is stocked and the fish grows in it during the month. At this time, the rest of tank 1 is free of fish. After a month, when the fish grows up, the partition forming the compartment with volume a is moved to the position

corresponding to the border of compartment 6 with volume b, and one of the partitions pressed to the end wall is moved to the place of the removed partition - to the border of the compartment with volume a, the division moved to the compartment with volume b from the newly formed and empty compartment with volume a where and put a new batch of fish.

After a month, it is again necessary to increase the habitats of the first two batches of fish, and for this, one of the partitions 5 is again displaced to the right end wall of the tank 1 and the other in its place, thus forming compartment 6 with the water volume c. Similarly, one of the partitions is moved to the left border of the compartment with volume b and the compartment with volume a is again released. The partition that is pressed against the right end wall of tank 1 is moved to this compartment with a lifting device, and is placed close to the left end wall after which they launch a new batch of fish. After another month, the fish in the compartment with a volume of c reaches the final mass and is concentrated by means of a movable partition at the right end of the reservoir wall and removed from it. Thereafter, the partitions 5 move again, the compartment is filled with volume a, and the cycle is repeated.

Thus, the presence of partitions 5 in the process of their movement cleans the bottom of tank 1, its walls and mesh barrier 4 from fouling, and also regulates the density of fish landing in compartments 6, which favorably affects the conditions of fish growing during technological cycle.

In the process of growing, water enters tank 1 through pipelines 7 and 10, which ensures optimum oxygen conditions in tank 1 and a constant removal of contaminants along its entire length. Pollutions through drain pipe 12 enter the hydrocyclone 9 and are removed from there as they accumulation.

In the pipes 7, the openings are evenly spaced along their length to ensure optimal water flow.

For those cases when the fish breeding technology does not change and the compartments 6 have fixed volumes, an adjustable individual water supply to each compartment can be carried out. In this case, separate piping 10 can be used for each compartment 6.

When the volumes of the compartments 6 are fixed, the partitions 5 still move with each subsequent stocking of the first compartment. In this case, with their help

Slipping an older batch of fish into a larger compartment with optimal living conditions.

For tanks with a width of no more than 2.0–2.5 m, one pipe 7 can be used, since a one-way water supply in a small basin will ensure uniform mixing of the entire volume of water in it.

Depending on the type and density of fish planting, as well as growing regimes (young or commercial fish), the distribution of water through pipelines 7 and 10 is adjusted so as to ensure maximum removal of sediment from cavity 3 and optimal oxygen regime is created in tank 1.

The mesh barrier 4 in the proposed device has a minimum area, serves as the lower boundary of the compartments 6 and ensures the passage of precipitation into the cavity 3, but prevents the farmed fish from passing through it.

The use of the proposed device makes it possible to simultaneously grow fish of different ages under optimal conditions for its maintenance and to produce periodical release of commercial products and planting of juveniles without stopping the general technological process.

As the fish grows, it is transferred to larger compartments and thus the optimum density of the landing is maintained, and the feeding and watering regime chosen for each compartment, due to the even distribution of water in the compartments, contributes to a better growth and development of the fish.

The device also provides continuous sedimentation and removal of suspensions from the tank to the hydrocyclone, which facilitates self-cleaning of the water and the tank.

Formula 1 of the invention. A device for growing fish, including a tank for fish, the bottom of which has inclined walls forming a cavity for collecting sediments, means for supplying water to the tank, pipelines with inclined nozzles located in the lower part of the tank and serving for flushing soils. from the inclined walls of the bottom, a dirt collector in the form of a hydrocyclone, communicated with the reservoir through a drain pipe, and a mesh barrier to prevent fish from getting into the drain pipe, characterized in that To ensure optimal growing conditions for fish throughout the entire technological cycle, the tank is equipped with vertical partitions installed with the possibility of moving along the tank to divide it into compartments of the required volume of growing conditions, the means for supplying water to the tank contains one or two perforated piping fixed in the upper part of the side walls of the tank, the mesh barrier is strengthened over the cavity for collecting sediments with the formation of a false bottom, and the cream pipeline for Connected directly to the cavity for collecting soyadok using one or more evenly distributed pipes along the length of the tank.

2. The device is pop.1, characterized in that the vertical partitions are made of a permeable material.

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five

3. The device according to claim 1, of which is equipped with a perforated pipeline with means for connecting it to an oxygen or air supply system, which is mounted under a mesh barrier.

4. The device according to claim 1, so that it is each perforated pipeline means for supplying water to the tank is fixed below the expected level of filling with water and has two rows

 the holes, the holes are made so that in one row the lines passing through the centers of the alternating sections of the pipeline and holes are at an angle of 90 °, and in the other at an angle of 60 ° to the horizontal plane.

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Claims (4)

Claim 1. A device for growing fish, including a fish tank, the bottom of which has inclined walls that form a cavity for collecting sediment, means for supplying water to the tank, pipelines with inclined nozzles located at the bottom of the tank and used to flush contaminants from the inclined bottom walls , a mud collector in the form of a hydrocyclone in communication with the reservoir through a drain pipe, and a mesh fence to prevent fish from entering the drain pipe, characterized in that, in order to ensure optimum x conditions for growing fish throughout the entire technological cycle, the tank is equipped with vertical partitions installed with the possibility of moving along the tank to divide it into compartments of the volume required for growing conditions, the means for supplying water to the tank contains one or two perforated pipes fixed in the upper part the side walls of the tank, a mesh fence is fixed above the cavity for collecting sediments with the formation of a false bottom, and the drain pipe is connected directly a cavity for collecting soadkov via one or more uniformly distributed over the length of the tank fittings. 2. The device according to claim 1, with the fact that the vertical partitions are made of a permeable material. '' A r Oxygen / 15 10 3. The device according to claim 1, distinguished by the fact that it is equipped with a perforated pipe with means for connecting it to the oxygen or air supply system, which is mounted under a mesh fence. 4. The device according to claim 1, with the fact that each perforated pipeline of the means for supplying water to the tank is fixed below the expected level of filling with water and has two rows of holes, the holes being made so that in one row the lines passing through the centers of alternating sections of the pipeline and holes are located at an angle of 90 °, and in the other at an angle of 60 ° to the horizontal plane. From the pump * 9 X h eleven / -II- ! AA figZ