CN114223602A - High-density circulating water fish culture equipment - Google Patents

Abstract

The invention discloses high-density circulating water fish farming equipment, which belongs to the technical field of fish farming and comprises a farming device and a water treatment device, wherein the farming device comprises a farming barrel, a water inlet device and a water discharge device; breed the bottom of the barrel portion and pass through drainage device and water treatment facilities's the end intercommunication of intaking, drainage device is used for carrying the old water and the precipitate of breeding the bottom of the barrel portion to the water treatment facilities in-process, be provided with a plurality of net section of thick bamboo in breeding the bucket, a plurality of net section of thick bamboo overlap in proper order and establish, carry out the purpose that the subregion reaches breed different fishes in to breeding the district by net section of thick bamboo, water treatment facilities carries out circulation treatment to water simultaneously, constantly provide new water and oxygen in the district for breeding, avoid breeding the interior oxygen deficiency of district when guaranteeing that water flows, reach the purpose that high density was bred.

Description

High-density circulating water fish culture equipment

Technical Field

The invention relates to the technical field of fish culture, in particular to high-density circulating water fish culture equipment.

Background

The pond circulating flow water culture is a new mode for changing the traditional old pond fish culture mode into the mode of concentrating in a flowing water tank for culture, and has the advantages that cultured fishes grow in flowing water with high dissolved oxygen all the time, the cultured fishes grow fast, the survival rate is high, the yield per unit is high, the feed coefficient is low, the production management is convenient, the fishing is convenient, and the method is a novel ecological healthy culture technology with high efficiency, energy conservation, environmental protection and green.

However, the existing culture technology has the following problems: 1. the culture device occupies a large area and cannot utilize culture space more reasonably, so that the culture cost is high; 2. in order to avoid fighting among different fishes in the same high-density culture area, the same kind of fishes are cultured in the culture devices; 3. the water in the culture device is dead water and can not flow, so that the cultured fish meat has poor taste and short survival life.

Disclosure of Invention

The invention aims to provide high-density circulating water fish culture equipment which has the advantage of solving the technical problems.

In order to achieve the purpose, the invention adopts the technical scheme that: a high-density circulating water fish farming device comprises a farming device and a water treatment device, wherein the farming device comprises a farming barrel, a water inlet device and a water discharge device, the water outlet end of the water treatment device is communicated with the water inlet device, and the water inlet device is used for providing fresh water for the farming barrel; the bottom of the cultivation barrel is communicated with the water inlet end of the water treatment device through a drainage device, the drainage device is used for conveying the old water and the sediments at the bottom of the cultivation barrel to the water treatment device for treatment, a plurality of net cylinders are arranged in the cultivation barrel, and the net cylinders are sequentially sleeved.

Preferably, the water inlet device comprises a mounting frame, a water inlet pipe, a motor, a water inlet hopper, a main water pipe and a plurality of auxiliary water pipes, the motor is fixed on the mounting frame, a rotating shaft of the motor is connected with the water inlet hopper through a connecting piece, the water inlet hopper is upwards opened, the water outlet end of the water inlet pipe is positioned above the water inlet hopper, the bottom of the water inlet hopper is communicated with the main water pipe, the plurality of auxiliary water pipes are communicated with the main water pipe, and the output ends of the plurality of auxiliary water pipes are respectively positioned in different regions separated by a plurality of net barrels in the breeding barrel.

Preferably, drainage device includes the drain pipe, keeps in pipe and overflow pipe, the one end of drain pipe and the bottom intercommunication of breeding the bucket, the other end are provided with the valve, the middle section position of drain pipe and the pipe intercommunication of keeping in, the vertical setting of pipe of keeping in, the lateral wall and the overflow pipe intercommunication setting of the pipe of keeping in, the top of the pipe of keeping in is provided with water quality testing ware, water quality testing ware's sense terminal is less than the intercommunication department setting of the pipe of keeping in and overflow pipe.

Preferably, the drainage device further comprises a containing barrel and a residue scraping blade arranged at one end of the auxiliary water pipe far away from the main water pipe, the containing barrel is arranged at the bottom of the breeding barrel and communicated with the interior of the breeding barrel, the drainage pipe is communicated with the bottom of the containing barrel, and the residue scraping blade is arranged in a net shape.

Preferably, the water treatment device comprises a shell, a rotary drum, a rotary pipe, a low-concentration conveying pipe, a high-concentration conveying pipe, a supporting barrel, a collecting box, a material conveying pipe, a first rotary drum and a second rotary drum, wherein the shell, the rotary drum, the supporting barrel, the first rotary drum and the second rotary drum are horizontally arranged and are sequentially sleeved from outside to inside;

one end of a rotating pipe penetrates through the side wall of the shell and is fixedly connected with the rotary drum, the outer side of the rotating pipe is connected with the shell through a bearing, the inner side of the rotating pipe is connected with one end of a low-concentration conveying pipe through a bearing, the other end of the low-concentration conveying pipe is communicated with an overflow pipe, and the part of the rotating pipe, which is positioned outside the shell, is connected with a driving piece through a transmission assembly;

one end of the supporting barrel is fixed on the low-concentration conveying pipe, the liquid outlet of the low-concentration conveying pipe is not shielded, the other end of the supporting barrel is rotatably fixed on the rotary drum, the collecting box is arranged at the top of the supporting barrel, the bottom of the collecting box is communicated with the material conveying pipe arranged in the supporting barrel through a pipeline, the other end of the material conveying pipe extends into the second rotary drum, and the outer side of the material conveying pipe is connected with the first rotary drum and the second rotary drum through bearings;

the outer side wall of the second rotary drum is provided with a spiral sheet for pushing impurities between the first rotary drum and the second rotary drum, the second rotary drum is provided with a second liquid outlet for liquid to enter the first rotary drum, the first rotary drum is provided with a first liquid outlet for liquid to enter the support barrel, and the support barrel is provided with a third liquid outlet for liquid to enter the rotary drum;

the ends of the first rotary drum and the second rotary drum, which are far away from the material conveying pipe, penetrate through the rotary drum and are arranged on the shell, the outer side of the first rotary drum is fixed on the rotary drum, the outer side of the first rotary drum is connected with the shell through a bearing, the inner side of the first rotary drum is connected with the second rotary drum through a sealing bearing, the part of the first rotary drum, which penetrates through the shell, is provided with a slag discharge port, the end part of the second rotary drum, which penetrates through the shell, is communicated with a high-concentration conveying pipe through a sealing bearing, the high-concentration conveying pipe is communicated with a water discharge pipe through a conveying pump,

the parts of the first rotating drum and the second rotating drum, which penetrate out of the shell, are connected with a speed changer for driving the first rotating drum and the second rotating drum to rotate, and the rotating speeds of the first rotating drum and the second rotating drum are different.

Preferably, the diameters of the middle positions of the first rotating drum and the second rotating drum are gradually reduced, the area is arranged in a circular truncated cone shape, and the spiral piece is wound on the outer diameter of the second rotating drum and is changed along with the shape of the second rotating drum.

Preferably, a fixed block is arranged on the outer side wall of the second rotary drum and in a region outside the shell, a piston is movably sleeved on the outer side wall of the second rotary drum and in a region outside the shell, the piston is located on one side, close to the spiral piece, of the fixed block, the piston is connected with the fixed block through a spring, and the distance between the slag discharge port and the fixed block is smaller than the sum of the length of the spring in a normal state and the thickness of the piston and larger than the sum of the length of the spring in a compression state and the thickness of the piston.

Preferably, the material conveying pipe level sets up, and the junction of material conveying pipe and pipeline is provided with the holding chamber, the lateral wall and the support bucket fixed connection in holding chamber, be provided with shaftless auger in the material conveying pipe, the inner wall rotation that connecting rod and bearing and holding chamber were passed through to the one end of shaftless auger is connected, be provided with the support in the second rotary drum, the other end of shaftless auger passes through connecting rod and leg joint, is connected with the impurity scraper that is used for scraping pipeline and holding chamber intercommunication department impurity through branch on the connecting rod of shaftless auger and holding chamber lateral wall connection.

Preferably, a spray pipe is arranged above the rotary drum, and a plurality of spray heads aligned with the rotary drum are arranged on the spray pipe.

Preferably, still include the foam output structure, the foam output structure includes foam collecting pipe and foam output tube, the quantity of foam collecting pipe is the same with the regional quantity that a net section of thick bamboo was separated at least, the collection end of foam collecting pipe flushes with breed a barrel inner liquid level, and presses close to a net section of thick bamboo or breed a barrel lateral wall setting, the foam output tube is located the interior diapire of breeding the barrel and the lateral wall setting that breed the barrel is worn out to one end, and is a plurality of the foam collecting pipe all communicates with the foam output tube.

Compared with the prior art, the invention has the advantages that:

firstly, high-density culture of fishes is realized, and each culture area can realize multi-breed classified culture according to different requirements;

secondly, the selected water inlet device can move 360 degrees along the tank body, so that micro-circulation of the water body is realized;

thirdly, the culture equipment completely circulates indoors by utilizing mechanical equipment, so that factors such as natural disasters of weather and the like are avoided;

fourthly, the fish culture density is high, the survival rate is high, the feed utilization rate is high, the culture management is convenient, and the method is suitable for high-density culture;

fifthly, the cultured fishes grow in running water with high dissolved oxygen all the time, the cultured fishes grow fast, the survival rate is high, the yield per unit is high, the feed coefficient is low, the production management is convenient, and the fishing is convenient;

sixthly, the water treatment device can continuously treat the sewage discharged by the culture barrel, so that the purpose of uninterrupted operation is achieved, and the phenomenon that fish in the culture barrel die due to shutdown and slag discharge of the water treatment device is avoided;

seventhly, in the water circulation process, the low-concentration liquid and the high-concentration liquid are treated simultaneously, so that the requirements of the fish culture device in the application are met, and uninterrupted water treatment is realized;

eighthly, the solid-liquid separation treatment can be simultaneously carried out on the high-concentration sewage and the low-concentration sewage in the water circulation process, and the low-concentration sewage can be independently treated, so that the requirements of the culture device in the application are met;

ninthly, the impurities discharged by filtering in the water treatment contain less water, and the liquid is discharged from a slag discharge port as much as possible, so that the effect of more thorough solid-liquid separation is achieved;

the device is provided with a backwashing system, the rotary drum can be backwashed without stopping in the whole filtering process, and the situation of unsmooth filtering is effectively avoided after long-time work.

Drawings

FIG. 1 is a schematic view of the structure of this embodiment;

FIG. 2 is a schematic structural view of the cultivation apparatus of this embodiment;

FIG. 3 is a schematic cross-sectional view of the cultivation apparatus of this embodiment;

FIG. 4 is a schematic diagram showing a sectional structure of a water treatment apparatus;

FIG. 5 is an enlarged view of portion A of FIG. 4;

fig. 6 is a schematic structural view of the blister blade of the present embodiment.

In the figure: 1-1, a cultivation barrel; 1-11, a net cylinder; 1-2, a water inlet device; 1-21, a mounting rack; 1-22 parts of a water inlet pipe; 1-221, rotating water outlet head; 1-23, a motor; 1-24 parts of a water inlet hopper; 1-25, main water conveying pipe; 1-26 parts of auxiliary water conveying pipe; 1-261, residue doctor blade; 1-3, a drainage device; 1-31, a containing barrel; 1-32 parts of a drain pipe; 1-33, a temporary storage tube; 1-331, a water quality detector; 1-34, an overflow pipe; 1-4, foam output structure; 1-41, foam collecting pipe; 1-42, a foam output pipe; 1-43, a blister scraper; 1-431, a ferrule; 1-432, a blister scraper; 1-5, a support frame; 1-51, supporting legs; 1-511, outer sleeve; 1-512, inner rod; 1-513, a screw; 1-6, auxiliary pipe;

2-1, a shell; 2-11 parts of a liquid outlet pipe; 2-2, rotating the drum; 2-21, rotating the tube; 2-3, supporting the barrel; 2-31, a third liquid outlet; 2-32 parts of a material conveying pipe; 2-321 parts of accommodating cavity; 2-322, a shaftless auger; 2-323, a bracket; 2-324, impurity scraper; 2-33, collecting box; 2-4, a first drum; 2-41, a first liquid outlet; 2-42, a slag discharge port; 2-5, a second drum; 2-51, spiral slice; 2-52, a second liquid outlet; 2-53, fixing blocks; 2-54, a piston; 2-55, a spring; 2-6, a transmission; 2-7, a spray pipe; 2-71, a spray header; 2-8, low concentration conveying pipe; 2-9 parts of high-concentration delivery pipe.

Detailed Description

The present invention will be further explained below.

Example (b):

as shown in figure 1, the high-density circulating water fish farming equipment comprises a farming device and a water treatment device, wherein water is recycled between the farming device and the water treatment device through a pump body.

As shown in fig. 2 and 3, specifically, the cultivating device comprises a cultivating barrel 1-1, a water inlet device 1-2 and a water outlet device 1-3, wherein a plurality of net cylinders 1-11 are fixedly arranged in the cultivating barrel 1-1, the plurality of net cylinders 1-11 are coaxially arranged with the cultivating barrel 1-1 to separate different annular areas from the cultivating barrel 1-1 for cultivating different fishes, water in the different areas can circulate, the moving range of the fishes is enlarged as much as possible by the annular fish cultivating channel, and the cultivating range in the cultivating barrel 1-1 is more reasonably planned.

The water inlet device 1-2 comprises a mounting frame 1-21, a water inlet pipe 1-22, a motor 1-23, a water inlet hopper 1-24, a main water pipe 1-25 and a plurality of auxiliary water pipes 1-26. The motors 1-23 are fixed on the mounting frames 1-21, the rotating shafts of the motors 1-23 are connected with the water inlet hoppers 1-24 through connecting pieces, the water inlet hoppers 1-24 can rotate along with the motors 1-23 when the motors 1-23 rotate, and the connecting pieces are hollow connecting discs in the embodiment and do not block the normal water conveying. The opening of the water inlet hopper 1-24 is upward, the water outlet end of the water inlet pipe 1-22 is positioned above the water inlet hopper 1-24, and new water is added into the water inlet hopper 1-24, in the embodiment, the water outlet end of the water inlet pipe 1-22 is provided with the rotary water outlet head 1-221, the rotary water outlet head 1-221 is matched with the shape of the water inlet hopper 1-24 with the large upper part and the small lower part to increase the dissolved oxygen amount of the new water body as much as possible so as to ensure the required oxygen amount for survival of fish, and in other embodiments, an oxygen delivery pump can be arranged in the water inlet hopper 1-24 to increase the dissolved oxygen amount of the new water body.

The bottom of the water inlet hopper 1-24 is communicated with the main water pipe 1-25, the plurality of auxiliary water pipes 1-26 are communicated with the main water pipe 1-25, the output ends of the plurality of auxiliary water pipes 1-26 are respectively positioned in different areas separated by the plurality of net cylinders 1-11 in the culture barrel 1-1, new water is added into the different areas to uniformly supply water and oxygen for each area, in the embodiment, the water outlet points of the auxiliary water pipes 1-26 are arranged to be a plurality, and are uniformly distributed on the side wall of the auxiliary water outlet pipe along the axial direction of the auxiliary water pipes 1-26, in order to ensure that fish close to the bottom of the culture barrel 1-1 cannot lack oxygen, the length of the auxiliary water pipes 1-26 in the culture barrel 1-1 is not less than two-thirds of the total height of the culture barrel 1-1. When the motor 1-23 rotates, the auxiliary water pipe 1-26 also rotates along with the motor 1-23 to uniformly supply water and oxygen to the interior of the breeding barrel 1-1, so as to avoid the condition of oxygen deficiency in a certain area, promote the micro-flow of the water body of the loop while supplying water, enable the water body of the whole loop to form micro-circulation flow, and ensure the motion amount of the bred fish.

The water discharging device 1-3 is arranged at the bottom of the breeding barrel 1-1, the water discharging device 1-3 comprises an accommodating barrel 1-31, a water discharging pipe 1-32, a temporary storage pipe 1-33 and an overflow pipe 1-34, the accommodating barrel 1-31 is arranged at the bottom of the breeding barrel 1-1 and is communicated with the interior of the breeding barrel 1-1 for temporarily storing the fish discharge in the breeding barrel 1-1, in order to facilitate the fish discharge to reach the accommodating barrel and to be temporarily stored, one end of the auxiliary water conveying pipe 1-26, which is far away from the main water conveying pipe 1-25, is connected with a residue scraping blade 1-261, and the residue scraping blade 1-261 is arranged in a net shape to reduce the stirring of water flow and effectively avoid the flying of the discharge. In this embodiment, the residue scraper 1-261 is made of plastic and has a cross section of a shape of-ten, and has a function of gathering and guiding the discharge along with the movement of the secondary water pipe 1-26, so as to assist the discharge to finally flow to the communication between the breeding barrel 1-1 and the accommodating barrel 1-31, and in this embodiment, the communication between the breeding barrel 1-1 and the accommodating barrel 1-31 is located in the middle region, and cooperates with the operation of the residue scraper 1-261. The residual bait and the excrement are main pollution sources of the water body of the circular culture. One end of the drain pipe 1-32 is communicated with the bottom of the receiving tub 1-31, and the other end is provided with a valve, which is provided as a solenoid valve in this embodiment, to uniformly discharge from the valve along the drain pipe 1-32 when the discharge reaches a certain degree. The organic matters such as residual bait, excrement and the like are gathered at the center of the bottom of the culture pond and are discharged in a centralized manner, so that the phenomenon that the residual bait and excrement are decomposed in water in the culture pond to generate ammonia nitrogen, nitrite nitrogen and nitrate nitrogen and consume dissolved oxygen is avoided, and meanwhile, the phenomenon that the solid particles are collided into small particles to be dissolved in an accelerated manner when being separated from the culture water is also avoided by adopting a filtering mode. In general, in order to ensure the height of the liquid level in the cultivation barrel 1-1 and keep the flow of the water in the cultivation barrel 1-1, the middle position of the water discharge pipe 1-32 is communicated with the temporary storage pipe 1-33, the temporary storage pipe 1-33 is vertically arranged, the side wall of the temporary storage pipe 1-33 is communicated with the overflow pipe 1-34, the water level in the cultivation barrel 1-1 is the same as the height of the position of the overflow pipe 1-34 under the action of atmospheric pressure, so that the old water can be normally discharged, and the discharged old water amount is basically the same as the added new water amount. In this embodiment, the top of the temporary storage pipe 1-33 is provided with a water quality detector 1-331, the detection end of the water quality detector 1-331 is lower than the communication position between the temporary storage pipe 1-33 and the overflow pipe 1-34, and the quality of the discharged old water is monitored in real time to grasp the living environment of the fish in the culture barrel 1-1. The water quality detector 1-331 can be in signal communication with the electromagnetic valve, and the water quality detector 1-331 is controlled by the electric control system to control the sewage discharge device, so as to collect and take away waste residues such as residual baits, fish feces and the like in time and reduce pollution generated in the culture process.

The liquid discharged from the overflow pipe 1-34 is introduced into the low concentration conveying pipe 2-8, and the liquid discharged from the drain pipe 1-32 is introduced into the high concentration conveying pipe 2-9, and finally is sent into the water treatment device for treatment.

As shown in FIGS. 4 and 5, the water treatment apparatus includes a housing 2-1, a rotary drum 2-2, a rotary pipe 2-21, a low concentration delivery pipe 2-8, a high concentration delivery pipe 2-9, a support tub 2-3, a collection box 2-33, a material delivery pipe 2-32, a first rotary drum 2-4, a second rotary drum 2-5, and a driving member.

The rotary drum 2-2 is positioned on the inner side of the shell 2-1, one end of the rotary pipe 2-21 penetrates through the side wall of the shell 2-1 and is fixedly connected with the rotary drum 2-2, the outer side of the rotary pipe 2-21 is connected with the shell 2-1 through a bearing, and the inner side of the rotary pipe 2-21 is connected with the low-concentration conveying pipe 2-8 through a bearing. The side wall of the rotary drum 2-2 is densely distributed with filter holes, low-concentration liquid to be filtered is introduced into the rotary drum 2-2 through a low-concentration delivery pipe 2-8 to be filtered, the filtered liquid enters the shell 2-1 through the rotary drum 2-2 and is finally discharged from a liquid outlet pipe 2-11 arranged at the bottom of the shell 2-1, and the low-concentration liquid is filtered. But in order to ensure that the filtration is normally carried out, impurities are not deposited on the rotary drum 2-2 to block the filtration holes, the part of the rotary pipe 2-21, which is positioned outside the shell 2-1, is connected with the driving part through the transmission assembly, the rotary drum 2-2 rotates under the action of the driving part and the bearing, the impurities remained in the rotary drum 2-2 move along with the rotary drum 2-2 along the inner side wall of the rotary drum 2-2, and fall under the action of gravity when reaching the topmost end in the rotary drum 2-2, and the separation of the impurities from the rotary drum 2-2 is finished. In the embodiment, the driving part is arranged as a variable frequency motor, and the speed changer 2-6 is a planetary gear speed changer 2-6; the variable frequency motor controls the rotary drum 2-2 to rotate, the rotary drum 2-2 is coaxially and fixedly connected with the first rotary drum 2-4, the first rotary drum 2-4 is connected with a planet carrier of the planetary gear, and the second rotary drum 2-5 is coaxially connected with a sun gear of the planetary gear transmission; the rotary drum 2-2 and the first rotary drum 2-4 are rotated in a variable frequency motor driving mode, so that the whole rotating process is stable and controllable; in the embodiment, the driving gear is connected with a rotating shaft of the variable frequency motor, the driven gear is sleeved and fixed on the rotating pipe and meshed with the driving gear, when the variable frequency motor drives the driving gear to rotate, the driven gear drives the rotating drum 2-2 and the first rotating drum 2-4 to rotate, and at the moment, the rotating pipe 2-21 rotates along with the rotating drum 2-2. Two groups of supporting wheels are arranged on the inner wall of the shell 2-1 and are in contact with the outer wall of the rotary drum 2-2, and the supporting wheels rotate along with the rotary drum to play a role in supporting the rotary drum 2-2.

In the rotating process of the rotary drum 2-2, impurities reaching a high position fall due to self weight, a collecting box 2-33 with an upward opening is arranged in the rotary drum 2-2 and used for collecting the fallen impurities so as to facilitate uniform treatment, and a supporting barrel 2-3 is arranged in the embodiment to support the collecting box 2-33. One end of the supporting barrel 2-3 is fixed on the low-concentration conveying pipe 2-8, and plays a role of hanging in the air integrally and not rotating along with the rotary drum 2-2. The liquid outlet of the low-concentration conveying pipe 2-8 is positioned under the supporting barrel 2-3, so that the supporting barrel 2-3 is prevented from shielding the liquid outlet of the low-concentration conveying pipe 2-8. The side wall of the rotary drum 2-2, which is far away from the rotary pipe 2-21, is provided with a circle of bosses for placing the support barrel 2-3, when the support barrel 2-3 is installed, the bosses support the support barrel 2-3, the support barrel 2-3 and the bosses can rotate relatively, and the rotation of the rotary drum 2-2 is not disturbed.

The first rotating drum 2-4 is arranged on the inner side of the supporting barrel 2-3, the second rotating drum 2-5 is arranged on the inner side of the first rotating drum 2-4, the first rotating drum 2-4 and the second rotating drum 2-5 are coaxially and horizontally arranged, the spiral piece 2-51 is arranged on the outer side wall of the second rotating drum 2-5, and the minimum distance between the spiral piece 2-51 and the inner side wall of the first rotating drum 2-4 is 2-3 mm, so that the phenomenon that impurities cannot contact with the spiral piece 2-51 is avoided, and the spiral piece 2-51 is prevented from colliding with the inner side wall of the first rotating drum 2-4. One ends of the first rotating drum 2-4 and the second rotating drum 2-5 penetrate through the rotating drum 2-2 and are arranged with the shell 2-1, the outer side of the first rotating drum 2-4 is fixed on the rotating drum 2-2, the outer side of the first rotating drum 2-4 is connected with the shell 2-1 through a bearing, the inner side of the first rotating drum 2-4 is connected with the second rotating drum 2-5 through a sealed bearing, and a slag discharge port 2-42 is arranged at the part of the first rotating drum 2-4 penetrating through the shell 2-1. The parts of the first rotating drum 2-4 and the second rotating drum 2-5 which penetrate out of the shell 2-1 are connected through a speed changer 2-6, the speed changer drives the first rotating drum 2-5 to rotate, and the high-concentration delivery pipe 2-9 is communicated with the end part of the second rotating drum 2-5 which penetrates out of the shell 2-1. The second rotating drum 2-5 is provided with a second liquid outlet 2-52 for liquid to enter the first rotating drum 2-4, and the first rotating drum 2-4 is provided with a first liquid outlet 2-41 for liquid to enter the supporting barrel 2-3. In this embodiment the second outlet 2-52 is located in the middle area of the second drum 2-5 and the first outlet 2-41 is located at the end of the first drum 2-4 remote from the slag discharge opening 2-42 to ensure that liquid reaching the first outlet 2-41 is filtered by the gap between the spiral pieces 2-51 and the first drum 2-4 to reduce impurities passing through the first outlet 2-41.

The waste liquid input by the high-concentration conveying pipe 2-9 is high in concentration and high in impurity content, the waste liquid is introduced into the second rotary drum 2-5 for temporary storage, the liquid is sprayed out from the first liquid outlet 2-41 after reaching the position between the first rotary drum 2-4 and the second rotary drum 2-5 from the second liquid outlet 2-52, the impurity is attached to the inner side wall of the first rotary drum 2-4 under the action of centrifugal force, and most of the impurity is pushed to one end by the spiral piece 2-51 under the action of the spiral piece 2-51 and is finally discharged from the slag discharge port 2-42. In the whole process, the first rotary drum 2-4 drives the second rotary drum 2-5 to rotate, and the speed changer 2-6 enables a rotation speed difference to exist between the first rotary drum 2-4 and the second rotary drum 2-5, so that the spiral sheets 2-51 can normally push and extrude impurities. In this embodiment, a casing for housing the transmission 2-6 is disposed outside the casing 2-1, and the transmission 2-6 is selected as a planetary transmission 2-6, the outer ring gear of which is fixedly connected with the casing, the planet carrier of which is connected with the first rotating drum 2-4, and the inner ring gear of which is connected with the second rotating drum 2-5, so that the first rotating drum 2-4 drives the second rotating drum 2-5 to rotate in different directions and at different speeds under the connection of the bearings, thereby achieving the desired purpose.

The residue discharged by the spiral pieces 2-51 has more liquid residue, and in order to reduce the discharge of the liquid from the residue discharge port 2-42, the residue pushed out by the spiral pieces 2-51 needs to be extruded. In the implementation, the diameters of the middle positions of the first rotating drum 2-4 and the second rotating drum 2-5 are gradually reduced, the areas are arranged in a circular truncated cone shape, the spiral pieces 2-51 are wound on the outer diameter of the second rotating drum 2-5 and are changed along with the shape of the second rotating drum 2-5, and the distance between the spiral pieces is smaller and smaller. When the residue reaches the area, the whole volume is compressed, so that a large amount of water is separated from the residue, and meanwhile, because the first rotating drum 2-4 is horizontally arranged, the extruded liquid flows along the inclined plane of the diameter reducing area of the first rotating drum 2-4 to reach the large-diameter area of the first rotating drum 2-4, and is finally discharged from the first liquid outlet 2-41.

In order to reduce the moisture in the discharged residue as much as possible, a fixed block 2-53 is arranged on the outer side wall of the second rotary drum 2-5 and in the area outside the shell 2-1, a piston 2-54 is movably sleeved on the outer side wall of the second rotary drum 2-5 and in the area outside the shell 2-1, the piston 2-54 is arranged on one side, close to the spiral piece 2-51, of the fixed block 2-53, the piston 2-54 is connected with the fixed block 2-53 through a spring 2-55, and the distance between the residue discharge port 2-42 and the fixed block 2-53 is smaller than the sum of the normal length of the spring 2-55 and the thickness of the piston 2-54 and larger than the sum of the compressed length of the spring 2-55 and the thickness of the piston 2-54. When the residue continuously reaches the position of the piston 2-54, the residue pushes the piston 2-54 to move, the spring 2-55 is compressed at the moment, and the residue is extruded again under the thrust of the spring 2-55 and the action of the pushing force which is continuously added, so that the residue of water in the residue is reduced. With the continuous pressurization of the residue, the springs 2-55 are gradually shortened, when the pistons 2-54 are exposed out of the residue discharge ports 2-42, the residue is discharged from the residue discharge ports 2-42, the pressure borne by the springs 2-55 is reduced, the pistons 2-54 shield the residue discharge ports 2-42 again under the action of the springs 2-55, a residue discharge process is completed, and the next residue discharge is waited. The water content in the residue discharged after the spiral extrusion and the extrusion of the piston 2-54 and the spring 2-55 is obviously reduced, thereby achieving the expected purpose.

The liquid leaving the first rotary drum 2-4 has the concentration reduced and is almost the same as the concentration of the low-concentration liquid, enters the supporting barrel 2-3 through the first liquid outlet 2-41, enters the rotary drum 2-2 from the third liquid outlet 2-31 arranged at the bottom of the supporting barrel 2-3 to be treated together with the low-concentration liquid, leaves from the liquid outlet pipe 2-11 at the bottom of the shell 2-1 after the treatment is finished, and then enters the water inlet pipe 1-22 to return to the culture barrel 1-1 again for use.

The liquid processed in the rotary drum 2-2 and entering the collecting box 2-33 has more impurities and higher concentration, and has almost the same difference with the high-concentration liquid, the bottom of the collecting box 2-33 is communicated with a material conveying pipe 2-32 arranged in the supporting barrel 2-3 through a pipeline, and the liquid is conveyed into the first rotary drum 2-4 through the material conveying pipe 2-32 to be temporarily stored together with the high-concentration liquid and is mixed under the action of the rotation of the first rotary drum 2-4. In the conveying process, impurities in the liquid are likely to be blocked at the joint of the pipeline and the material conveying pipe 2-32, in order to avoid the situation, the joint of the material conveying pipe 2-32 and the pipeline is provided with a containing cavity 2-321 for temporarily storing the impurities so as not to block the joint, and the bottom of the containing cavity 2-321 is provided with a plurality of filter holes, so that part of the liquid can enter the supporting barrel 2-3 from the filter holes. Meanwhile, the outer side wall of the accommodating cavity 2-321 is fixedly connected with the supporting barrel 2-3, so that enough supporting force is provided for the accommodating cavity 2-321. A shaftless packing auger 2-322 is arranged in the material conveying pipe 2-32, and one end of the shaftless packing auger 2-322 is rotatably connected with the inner wall of the accommodating cavity 2-321 through a connecting rod and a bearing. The second rotary drum 2-5 is internally provided with a bracket 2-323, the other end of the shaftless packing auger 2-322 is connected with the bracket 2-323 through a connecting rod, so that the shaftless packing auger 2-322 can rotate along with the second rotary drum 2-5 to drive most of impurities in the material conveying pipe 2-32 and the accommodating cavity 2-321 to enter the second rotary drum 2-5, and the blockage in the material conveying pipe 2-32 is avoided. In this embodiment, the frame 2-323 is a plate-like structure, which divides the second drum 2-5 into two separate spaces to prevent the liquid fed from the high concentration feed pipe 2-9 from backflushing into the drum 2-2 from the receiving chamber 2-321. The two independent spaces are respectively provided with a second liquid outlet 2-52, the waste liquid input from the high-concentration conveying pipe 2-9 is generally higher than the waste liquid input from the material conveying pipe 2-32, as shown in figure 4, the low-concentration liquid enters the first rotary drum 2-4 from the second liquid outlet 2-52 on the left side of the support 2-323, and the high-concentration liquid enters the first rotary drum 2-4 from the second liquid outlet 2-52 on the right side of the support 2-323.

In order to avoid the impurities from being accumulated and blocked at the communicating part of the pipeline and the accommodating cavity 2-321, the impurity scraper 2-324 for scraping the impurities at the communicating part of the pipeline and the accommodating cavity 2-321 is connected with a connecting rod which is rotatably connected with the side wall of the accommodating cavity 2-321 through a supporting rod, the impurity scraper 2-324 moves along with the shaftless auger 2-322 to stir the impurities reaching the pipe orifice of the pipeline, the impurities are not easy to be accumulated and blocked in the pipeline under the pulling action of the impurity scraper 2-324, and the normal operation of the whole solid-liquid separation process is ensured, in the embodiment, in order to match the movement of the impurity scraper 2-324, the accommodating cavity 2-321 is horizontally arranged in a cylindrical shape, under the pushing action of the impurity scraper 2-324, part of liquid comes out from the filtering hole and enters the supporting barrel 2-3, and meanwhile, the movement of the impurity scraper 2-324 can clean the filtering hole to a certain degree, avoid the blockage of the filter holes.

After a long-time filtering process, the filtering holes on the rotary drum 2-2 are blocked, so that the whole filtering work is influenced, and at the moment, back washing operation is required. A spray pipe 2-7 is arranged above the rotary drum 2-2, one end of the spray pipe 2-7 penetrates out of the shell 2-1 to be communicated with an external water source, and a plurality of spray heads 2-71 aligned with the rotary drum 2-2 are arranged on the spray pipe 2-7. During back flushing, the spraying pipes 2-7 spray water, impurities in the filtering holes are flushed out under the action of water pressure, the impurities on the inner side of the rotary drum 2-2 are impacted under the spraying action, the impurities fall into the collecting boxes 2-33, meanwhile, the impurities absorb water to increase the self weight, and the impurities can fall into the collecting boxes 2-33 more easily and are collected for waiting for treatment. The back-washing liquid not only cleans the filter holes, but also assists in accelerating the falling of impurities in the rotary drum 2-2, and simultaneously, water entering the collecting box 2-33 carries impurities more easily to enter the pipeline, so that the blockage of the pipeline is reduced, the residual quantity of the impurities in the collecting box 2-33 is reduced, and the excessive accumulation of the impurities in the collecting box 2-33 is avoided. The addition of the back washing water compensates the moisture carried in the discharged impurities to a certain extent, the water returns to the culture barrel 1-1 to supplement the water, and the water resource is reasonably utilized to achieve the purpose of reducing waste.

As shown in figures 2 and 6, in the process of culturing fish, a large amount of foam floats on the liquid surface due to the breathing and movement of the fish, and the existence of the foam can influence the culture of the fish and the dissolved oxygen of the water body, so the multilayer multi-loop high-density circulating water fish culturing equipment is also provided with foam output structures 1-4. The foam output structure 1-4 comprises foam collecting pipes 1-41 and foam output pipes 1-42 communicated with the foam collecting pipes 1-41, the number of the foam collecting pipes 1-41 is at least the same as that of the areas separated by the net cylinders 1-11, in the embodiment, the number of the foam collecting pipes 1-41 is the same as that of the areas separated by the net cylinders 1-11, and the collecting ends of the foam collecting pipes 1-41 are flush with the liquid level in the cultivation barrel 1-1, namely flush with the joint of the overflow pipes 1-34 and the temporary storage pipes 1-33 and are arranged close to the side walls of the net cylinders 1-11 or the cultivation barrel 1-1. The foam generated under the normal state can be close to the wall of the breeding barrel 1-1 and the side wall of the net barrel 1-11, the foam collecting pipe 1-41 attached to the wall of the breeding barrel 1-1 and the side wall of the net barrel 1-11 can collect the foam more easily, meanwhile, the foam collecting pipe 1-41 can not interfere with the movement of the auxiliary water pipe 1-26, in order to reduce the interference caused by the movement of the auxiliary water pipe 1-26, the foam output pipe 1-42 is positioned on the inner bottom wall of the breeding barrel 1-1, one end of the foam output pipe penetrates through the side wall of the breeding barrel 1-1, and the collected foam is discharged out of the breeding barrel 1-1.

In order to accelerate the foam on the liquid surface to approach the wall of the breeding barrel 1-1 and the side wall of the net barrel 1-11, a floating foam scraping blade 1-43 which floats on the liquid surface is sleeved on the auxiliary water delivery pipe 1-26. The floating bubble scraping blades 1-43 floating on the liquid surface can better fit the liquid surface, and are more beneficial to stirring the foam. The floating bubble scraping blade 1-43 comprises a ferrule 1-431 and two arc-shaped floating bubble scraping blades 1-432, the ferrule 1-431 is movably sleeved on the auxiliary water pipe 1-26, the two floating bubble scraping blades 1-432 are respectively arranged on two sides of the ferrule 1-431 and are opposite in concave direction, the floating bubble scraping blades 1-43 rotate under the action of water flow in the moving process of the auxiliary water pipe 1-26, accumulation of foam at the position of the floating bubble scraping blades 1-43 is reduced, the foam is close to the wall of the breeding barrel 1-1 and the side wall of the net barrel 1-11, enters the foam collecting pipe 1-41 and is finally discharged from the foam output pipe 1-42. In the embodiment, the foam output pipes 1-42 can be communicated with the low-concentration conveying pipes 2-8, liquid entering the foam output pipes is filtered and then sent back to the cultivation barrel 1-1 for use, and in other embodiments, the liquid discharged by the foam output pipes 1-42 can be treated and then directly discharged.

In order to reasonably utilize the culture space in the embodiment, the culture barrels 1-1 can be arranged in a plurality of numbers, stacked in the vertical direction and supported by the support frames 1-5, and the culture barrels 1-1 are specifically arranged in two numbers in the embodiment. The breeding barrel 1-1 is positioned above

The central area is provided with auxiliary pipes 1-6 in a penetrating way, and the auxiliary pipes 1-6 simultaneously penetrate through the accommodating barrels 1-31 connected with the breeding barrels 1-1 above. The two breeding barrels 1-1 share one water inlet device 1-2, a main water pipe 1-25 is arranged by penetrating through an auxiliary pipe 1-6, the part of the main water pipe 1-25 penetrating through the auxiliary pipe 1-6 is communicated with an auxiliary water pipe 1-26 matched with the breeding barrel 1-1 below, and after the motor 1-23 rotates, the auxiliary water pipe 1-26 matched with the breeding barrel 1-1 above and the auxiliary water pipe 1-26 matched with the breeding barrel 1-1 below synchronously rotate. The liquid discharged from the two breeding barrels 1-1 can be uniformly integrated and conveyed into a water treatment device for treatment, and can also be treated by corresponding to different water treatment devices. The supporting frame 1-5 can be arranged in the embodiment that the height of the supporting table surface can be adjusted, so that the supporting frame is adapted to the breeding barrels 1-1 with different heights, and the interference between the upper breeding barrel 1 and the lower breeding barrel 1-1 is avoided. The support frame 1-5 can be specifically set to be the support leg 1-51, the length of which can be adjusted, the support leg 1-51 comprises an outer sleeve 1-511 and an inner rod 1-512, the outer sleeve 1-511 is sleeved outside the inner rod 1-512, the outer sleeve 1-511 is in threaded connection with a screw rod 1-513, and one end part of a bolt can be abutted against the inner pipe. An operator adjusts the position between the outer sleeve 1-511 and the inner rod 1-512 according to the requirement, then the screw 1-513 is rotated to enable the screw 1-513 to be tightly propped against the inner pipe, and the position between the outer sleeve 1-511 and the inner rod 1-512 is fixed under the action of friction force.

The water treatment system provided by the invention can perfectly adapt to the requirements of the culture device, the culture device realizes the culture of high-density different types of fish, and the problems that the reasonable utilization rate of culture space is not high, different types of fish can not be cultured in the same culture area, water in the culture area can not flow and the like in the existing fish culture technology are solved.

The principles and embodiments of the present invention have been described herein using specific examples, which are provided only to help understand the method and the core concept of the present invention; while the invention has been described in detail and with reference to specific embodiments thereof, it will be apparent to one skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims (10)

1. The high-density circulating water fish farming equipment is characterized by comprising a farming device and a water treatment device, wherein the farming device comprises a farming barrel (1-1), a water inlet device (1-2) and a water discharge device (1-3), the water outlet end of the water treatment device is communicated with the water inlet device (1-2), and the water inlet device (1-2) is used for providing new water for the farming barrel (1-1); the bottom of the breeding barrel (1-1) is communicated with a water inlet end of a water treatment device through a drainage device (1-3), the drainage device (1-3) is used for conveying old water and sediments at the bottom of the breeding barrel (1-1) to the water treatment device for treatment, a plurality of net cylinders (1-11) are arranged in the breeding barrel (1-1), and the net cylinders (1-11) are sequentially sleeved.

2. The high-density circulating water fish farming equipment according to claim 1, wherein the water inlet device (1-2) comprises a mounting frame (1-21), a water inlet pipe (1-22), a motor (1-23), a water inlet hopper (1-24), a main water pipe (1-25) and a plurality of auxiliary water pipes (1-26), the motor (1-23) is fixed on the mounting frame (1-21), a rotating shaft of the motor (1-23) is connected with the water inlet hopper (1-24) through a connecting piece, the opening of the water inlet hopper (1-24) is upward, the water outlet end of the water inlet pipe (1-22) is positioned above the water inlet hopper (1-24), the bottom of the water inlet hopper (1-24) is communicated with the main water pipe (1-25), the plurality of auxiliary water pipes (1-26) are communicated with the main water pipe (1-25), the output ends of the auxiliary water pipes (1-26) are respectively positioned in different areas separated by the mesh cylinders (1-11) in the cultivation barrel (1-1).

3. A high-density circulating water fish farming plant according to claim 2, characterized in that the drainage means (1-3) comprises a drainage pipe (1-32), a temporary storage pipe (1-33) and an overflow pipe (1-34), one end of the drain pipe (1-32) is communicated with the bottom of the breeding barrel (1-1), the other end is provided with a valve, the middle section position of the drain pipe (1-32) is communicated with a temporary storage pipe (1-33), the temporary storage pipe (1-33) is vertically arranged, the side wall of the temporary storage pipe (1-33) is communicated with an overflow pipe (1-34), the top of the temporary storage pipe (1-33) is provided with a water quality detector (1-331), the detection end of the water quality detector (1-331) is lower than the communication position of the temporary storage pipe (1-33) and the overflow pipe (1-34).

4. A high-density circulating water fish culture apparatus as claimed in claim 3, wherein the water discharge device (1-3) further comprises a holding barrel (1-31) and residue scraping blades (1-261) arranged at one end of the secondary water pipe (1-26) far away from the main water pipe (1-25), the holding barrel (1-31) is arranged at the bottom of the culture barrel (1-1) and communicated with the inside of the culture barrel (1-1), the water discharge pipe (1-32) is communicated with the bottom of the holding barrel (1-31), and the residue scraping blades (1-261) are arranged in a net shape.

5. The high-density circulating water fish culture equipment as claimed in claim 3, wherein the water treatment device comprises a shell (2-1), a rotary drum (2-2), a rotary pipe (2-21), a low-concentration delivery pipe (2-8), a high-concentration delivery pipe (2-9), a support barrel (2-3), a collection box (2-33), a material delivery pipe (2-32), a first rotary drum (2-4) and a second rotary drum (2-5), wherein the shell (2-1), the rotary drum (2-2), the support barrel (2-3), the first rotary drum (2-4) and the second rotary drum (2-5) are horizontally arranged and are sequentially sleeved from outside to inside;

one end of a rotating pipe (2-21) penetrates through the side wall of a shell (2-1) and is fixedly connected with a rotary drum (2-2), the outer side of the rotating pipe (2-21) is connected with the shell (2-1) through a bearing, the inner side of the rotating pipe (2-21) is connected with one end of a low-concentration conveying pipe (2-8) through a bearing, the other end of the low-concentration conveying pipe (2-8) is communicated with an overflow pipe (1-34), and the part of the rotating pipe (2-21) located outside the shell (2-1) is connected with a driving piece through a transmission assembly;

one end of a supporting barrel (2-3) is fixed on a low-concentration conveying pipe (2-8) and does not shield a liquid outlet of the low-concentration conveying pipe (2-8), the other end of the supporting barrel (2-2) is rotatably fixed on a rotary drum (2-3), a collecting box (2-33) is arranged at the top of the supporting barrel (2-3), the bottom of the collecting box (2-33) is communicated with a material conveying pipe (2-32) arranged in the supporting barrel (2-3) through a pipeline, the other end of the material conveying pipe (2-32) extends into a second rotary drum (2-5) for arrangement, and the outer side of the material conveying pipe (2-32) is connected with a first rotary drum (2-4) and the second rotary drum (2-5) through a bearing;

the outer side wall of the second rotary drum (2-5) is provided with a spiral sheet (2-51) for pushing impurities between the first rotary drum (2-4) and the second rotary drum (2-5), the second rotary drum (2-5) is provided with a second liquid outlet (2-52) for liquid to enter the first rotary drum (2-4), the first rotary drum (2-4) is provided with a first liquid outlet (2-41) for liquid to enter the support barrel (2-3), and the support barrel (2-3) is provided with a third liquid outlet (2-31) for liquid to enter the rotary drum (2-2);

one ends of the first rotary drum (2-4) and the second rotary drum (2-5) far away from the material conveying pipe (2-32) penetrate through the rotary drum (2-2) and the shell (2-1), the outer side of the first rotary drum (2-4) is fixed on the rotary drum (2-2), the outer side of the first rotary drum (2-4) is connected with the shell (2-1) through a bearing, the inner side of the first rotary drum (2-4) is connected with the second rotary drum (2-5) through a sealing bearing, the part of the first rotary drum (2-4) penetrating through the shell (2-1) is provided with a slag discharge port (2-42), the end part of the second rotary drum (2-5) penetrating through the shell (2-1) is communicated with a high-concentration delivery pipe (2-9) through a sealed bearing, and the high-concentration delivery pipe (2-9) is communicated with a drain pipe (1-32) through a delivery pump;

the parts of the first rotating drum (2-4) and the second rotating drum (2-5) which penetrate out of the shell (2-1) are connected with a speed changer (2-6) for driving to rotate, and the rotating speeds of the first rotating drum (2-4) and the second rotating drum (2-5) are different.

6. A high-density circulating water fish farming plant according to claim 5, characterized in that the diameters of the first drum (2-4) and the second drum (2-5) are gradually reduced at the middle position, the area is arranged in a circular truncated cone shape, and the diameter of the spiral piece (2-51) around the second drum (2-5) is changed along with the shape of the second drum (2-5).

7. The high-density circulating water fish culture equipment as claimed in claim 6, wherein the outer side wall of the second rotary drum (2-5) and the area outside the shell (2-1) are provided with fixed blocks (2-53), the outer side wall of the second rotary drum (2-5) and the area outside the shell (2-1) are movably sleeved with pistons (2-54), the pistons (2-54) are positioned on one side of the fixed blocks (2-53) close to the spiral sheets (2-51), the pistons (2-54) and the fixed blocks (2-53) are connected through springs (2-55), the distance between the slag discharge port (2-42) and the fixed blocks (2-53) is smaller than the sum of the normal length of the springs (2-55) and the thickness of the pistons (2-54), is larger than the sum of the length of the compressed state of the spring (2-55) and the thickness of the piston (2-54).

8. The high-density circulating water fish farming equipment according to claim 5, wherein the material conveying pipe (2-32) is horizontally arranged, an accommodating cavity (2-321) is arranged at the joint of the material conveying pipe (2-32) and the pipeline, the outer side wall of the accommodating cavity (2-321) is fixedly connected with the supporting barrel (2-3), a shaftless packing auger (2-322) is arranged in the material conveying pipe (2-32), one end of the shaftless packing auger (2-322) is rotatably connected with the inner wall of the accommodating cavity (2-321) through a connecting rod and a bearing, a support (2-323) is arranged in the second rotary drum (2-5), the other end of the shaftless packing auger (2-322) is connected with the support (2-323) through a connecting rod, and the connecting rod of the shaftless packing auger (2-322) connected with the side wall of the accommodating cavity (2-321) is connected with a support rod through a support rod for scraping the pipeline Impurity scrapers (2-324) communicated with the accommodating cavities (2-321) for impurities.

9. A high-density circulating water fish culture apparatus as claimed in claim 5, wherein a spray pipe (2-7) is arranged above the rotary drum (2-2), and a plurality of spray heads (2-71) aligned with the rotary drum (2-2) are arranged on the spray pipe (2-7).

10. A high-density circulating water fish farming plant according to claim 1, further comprising a foam output structure (1-4), the foam output structure (1-4) comprises a foam collecting pipe (1-41) and a foam output pipe (1-42), the number of the foam collecting pipes (1-41) is at least the same as the number of the areas separated by the net cylinders (1-11), the collection end of the foam collection pipe (1-41) is flush with the liquid level in the breeding barrel (1-1), and the foam collecting pipe is arranged close to the side wall of the net cylinder (1-11) or the breeding barrel (1-1), the foam output pipe (1-42) is positioned on the inner bottom wall of the breeding barrel (1-1), one end of the foam output pipe penetrates through the side wall of the breeding barrel (1-1), and the foam collecting pipes (1-41) are communicated with the foam output pipe (1-42).

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