351results about How to "Improve oxygenation effect" patented technology

The invention relates to a high-density fish culturing method. The high-density fish culturing method includes the steps of 1), throwing fish fries in a fishpond; 2), sealing the fishpond; 3), regulating water flow; 4), feeding feed; 5), draining water and sewage; 6), fishing. According to the step 2) of fishpond sealing, sealing cover seats are arranged on the inner wall of the fishpond, a sealing cover of an arched structure is arranged on the sealing cover seats, a vent valve is arranged at the top of the sealing cover, and an oxygenation pipe is arranged in the fishpond; after the vent valve is opened, water is injected into the fishpond until the water level exceeds the sealing cover seats, and then the vent valve is closed; oxygen is fed into the fishpond, and a sealed pure-oxygen space is formed between the water surface and the position below the arched sealing cover by undissolved oxygen. The high-density fish culturing method solves the problems of difficulty in further improvement on culturing density, oxygenation equipment complexity, high energy consumption, low pure oxygen utilization ratio and inconvenience in culturing and operation in existing industrial fish culturing.

The invention belongs to the field of water treatment, and relates to a two-stage moving bed biomembrane reactor medium water treatment system. The two-stage moving bed biomembrane reactor medium water treatment system is characterized in that the whole process adopts a programmable PLC automatic control system; the main treatment structure is two-stage cascade connected moving bed biomembrane reactors; and the concrete process flow is as follows: domestic sewage or sewage with similar water quality enters a regulating pond through grates and then enters a first-stage MBBR reactor and a second-stage MBBR reactor in turn by pump lifting; and then the water is outputted into a depositing pond, enters a clear water pond and is reused for flushing toilet or as landscape water after cyclic ultraviolet sterilization. The two-stage moving bed biomembrane reactor medium water treatment system has the advantages that: 1 the system has good medium water treatment effects, stronger resistance to shock load and stable outputted water quality; 2 the system has simple and convenient operating management, a small floor area, convenient maintenance and little excessive sludge; and the system adopts the PLC automatic control system with high automatic degree; 3 the system adopts a mechanical aeration mode, thereby bringing about low energy consumption and good oxygenation performance without an independent blower; 4 the system adopts a cyclic ultraviolet sterilization mode without any medicament added during the whole process, thereby avoiding the secondary pollution; and 5 the system has a wide application range.

The invention discloses a circulation aquaculture process and system. The aquaculture system includes a breeding unit, a filtering unit, a biological reaction unit, a degassing unit, a plant cleaning unit, an oxygenation disinfection unit, a water feeding and drainage unit, and an intelligent control unit; the breeding unit, the filtering unit, the biological reaction unit, the degassing unit, the plant cleaning unit, and the oxygenation disinfection unit are successively connected through a pipe of the water feeding and drainage unit to form a circulation system. The beneficial effects of the invention are that the micro-nano bubble aeration technology has a good oxygenation effect, and can improve the biological activity of cells and the breeding density; micro-nano ozone bubbles and ultraviolet light can improve the disinfection effect, can reduce chemicals, and can ensure food safety; water feeding and drainage, temperature control, pH control, oxygenation, disinfection and feeding can be achieved automatically, and labors can be saved; processed waste water can be used for watering or enter to the system to be used; sludge becomes an organic fertilizer, a closed ecological chain is formed, and zero emission, a water saving, energy saving, and environment protection effect can be achieved.

The invention discloses a solar autonomous mobile oxygenation system for aquaculture. The solar autonomous mobile oxygenation system comprises a solar autonomous mobile oxygenation machine, a GPS navigation module and a dissolved oxygen detection module. In the solar autonomous mobile oxygenation machine, a central control unit is connected with a perforated paddle wheel oxygenation propeller, an upper computer, a wireless data transmission receiver and the GPS navigation module, and used for acquiring information of the dissolved oxygen sensor, conducting positioning and navigation, driving the perforated paddle wheel oxygenation propeller to operate, and then automatically achieving oxygenation for the dissolved oxygen insufficient region of a breeding water area. The system is autonomously mobile, free of any manual operation, and capable of saving labor and material resources. The perforated paddle wheel oxygenation propeller of the oxygenation machine can conduct oxygenation, provide propelling force for the whole oxygenation machine, and effectively save the time of a workboat. In addition, power of the oxygenation machine is supplied by a solar power supply system, external charging is not needed, the oxygenation machine can work at night and on rainy days, and the automation degree is high.

The invention discloses a jet flow aerator, relating to an aerator and aiming to provide a jet flow aerator with high mass transfer coefficient, high dissolved oxygen speed, uniform mixing stirring and favorable oxygenated effect. The jet flow aerator comprises an air inlet pipe, a water spray nozzle, a gas-water mixing chamber, a throat section and diffusion section taper pipe, and a metal net is arranged at an outlet of a diffusion taper pipe section. The invention is used for wastewater treatment.

The invention discloses a method capable of improving marketable specification of procambarus clarkii. The method comprises the following breeding steps of: (1) digging circular trenches; (2) arranging escape-proof facilities; (3) cleaning a pool; (4) fertilizing and culturing bottom-dwelling bait microorganisms; (5) planting grass; (6) setting breeding specification and density of shrimps; (7) arranging micropore bottom oxygen-increasing facilities; (8) feeding shrimp feed; (9) managing water quality; and (10) shrimping by turns. The method for breeding large-specification grown procambarus clarkii is favorable of breeding large-specification grown prawns with weight of more than 60g, so that problems of small grown specification, low yield and poor breeding efficiency of procambarus clarkii in a pool breeding mode are solved. The method for breeding large-specification grown procambarus clarkii has the features of low investment, convenience in operation and management, large specification of grown commodity shrimps, high yield and good efficiency, and is suitable for large-area popularization and application in pool breeding regions and river crab breeding regions.

The invention discloses an improved swing oxygen-increasing device comprising a floating body, a counterweight body rotation driving mechanism is arranged on the floating body, the counterweight body rotation driving mechanism is connected with a revolving arm, a counterweight body is arranged at the back end of the revolving arm, the revolving arm and the counterweight body are arranged above the floating body, the floating body is provided with a water chute, a water inlet of the water chute is arranged at the bottom part of the floating body, a water outlet thereof is arranged at the upper part of the floating body, a water pumping impeller is arranged at the water inlet of the water chute, and the water pumping impeller is connected with an impeller rotation driving mechanism. As the improved swing oxygen-increasing device increases the water pumping impeller, the floating body swings continuously under the rotation action of the counterweight body, and the bottom part of the floating body presses water by swing, thereby leading pool water to continuously form waves which are transferred outwards, increasing the direct contact between the pool water and air and further increasing the dissolved oxygen; the water pumping impeller pumps the pool water from the water inlet of the water chute of the floating body, and the pool water is ejected outwards at the water outlet of the water chute at the upper edge of the floating body, thereby forming spray, further increasing the dissolved oxygen and realizing good oxygen-increasing effect.

The invention relates to a river treatment system based on micro-nano oxygenation-aeration and biological purification effect. The river treatment system comprises a preliminary filtering device, a water storage tank, a host of a rapid micro-nano bubble generating device, an oxygenation device, a micro-nano bubble aerator and a solid-state microbial carrier, wherein the preliminary filtering device, the water storage tank, the host of the rapid micro-nano bubble generating device and the micro-nano bubble aerator are successively communicated with each other via pipelines; the oxygenation device is communicated with the host of the rapid micro-nano bubble generating device; and the solid-state microbial carrier is fixedly connected with an aeration pipeline of the micro-nano bubble aerator. The river treatment system provided by the invention cooperatively uses the rapid micro-nano bubble generating device and the oxygenation device for oxygenation of a river; and microbial purification in the aeration pipeline is cooperatively carried out so as to reduce the biochemical oxygen demand (BOD) and the contents of total nitrogen (TN) and total phosphorus (TP) and to allow ecological equilibrium of the river to be recovered.

The invention discloses a device for transportation, oxygen enhancement, adsorption and filtration of fresh aquatic products. The key points of the technical proposal of the invention are that: the device for transportation, oxygen enhancement, adsorption and filtration of fresh aquatic products is a rectangular container, in which a rectangular water tank is placed; a rectangular oxygen-increasing reagent regulating device is fixed on the left side of the water tank through connection bolts; an attapalgite particle adsorbent oxygen-increasing agent is put in a hopper; the right side of the water tank is welded with a purifying water tank through a clapboard; an attapalgite particle adsorbent filtering agent is arranged in the middle and lower part of the purifying water tank; the lower and right part of a drip chamber is welded with a drainage valve; two elastic backing boards are arranged at the lower and exterior part of the water tank. The device of the invention has simple structure, convenient use and good oxygen enhancement effect; the water dissolved oxygen in the water tank can remain 6-10mg / L for a long time, and the device for transportation, oxygen enhancement, adsorption and filtration of fresh aquatic products is suitable for long distance transportation of various fresh aquatic products.

The invention discloses organic fertilizer capable of improving the survival rate of garden flowers. The organic fertilizer is prepared from the following raw materials: dry pond sludge, peanut bran, soybean meal, wine dreg, pearlite, mushroom residue, pig manure, cassava residue, urea, potassium chloride, ammonium nitrate, ammonium molybdate, potassium sulfate, borax, manganese sulfate, zinc sulfate, potassium dihydrogen phosphate, phosphoric acid powder, a modified oxygen-increasing agent, a modified slow-release agent and filling. The invention further provides a preparation method of the organic fertilizer capable of improving the survival rate of the garden flowers; the organic fertilizer provided by the invention contains rich nutrient substances needed by the growth of the flowers and can provide abundant oxygen gas to the growth of roots of the flowers, so that the survival rate of the flowers is effectively improved.

The invention discloses a rotary type hollow fiber porous membrane foamless oxygen charging device and method. The device comprises a rotary foamless membrane type oxygen charging assemble, an air supplying and exhausting system, a water supplying and draining system and a motor and electrical control system. In the method, the raw water is added in an activated sludge aeration basin, the rotary foamless membrane type oxygen charging assemble rotates in the aeration basin at the speed of several to tens revolutions per minute, the oxygen charging adopts the intermittent air charging and discharging way, the air feeding pressure is controlled under the bubble point of the fiber membrane, the oxygen is dissolved rapidly on the membrane surface and is dispersed into the sludge water under the drive of the concentration difference and the pressure difference, the dissolved oxygen concentration is kept at 1 to 2.5 mg / l, the rotary oxygen charging assemble play the role of the mixing and activated sludge stirring. Compared with the traditional aeration method, the invention has high oxygen transmissibility, good oxygen charging effect, little oxygen charging amount, lower energy consumption, little membrane pollution, and convenient change and maintenance, and is very suitable for the upgrading and reforming of the activated sludge aeration basin in the sewage treatment technology.

A centrifugal double-barreled activation and aeration automatic aerator comprises a driving device, and is characterized in that the driving device is connected with a main shaft in a driving way, the lower end of the main shaft is provided with a horn mouth type combined centrifugal impeller, an outer coat of a fixing device is installed outside the main shaft at the upper end of the horn mouth type combined centrifugal impeller to form an oxygen gathering chamber that is communicated and provided with an oxygen supply tube, the horn mouth type combined centrifugal impeller is provided with aerobic vanes and water vanes for driving a water body to move. The centrifugal double-barreled activation and aeration automatic aerator has reasonable structural design and exterior high-pressure oxygen supply devices, thereby being capable of obviously improving the air pressure entering the water body, efficiently carrying out enforced down-diffusion for air which enters the water body, efficiently eliminating the aerobic dead angle, improving the oxygen-dissolved saturation degree, and further being capable of increasing air load amount. Air is efficiently enforced and operated to a larger and deeper water body while forming a large-scale aeration convection so that the aeration effect and the aeration scale of the water body is obviously improved. The automatic aerator can be widely applied to aeration of various water bodies in the fields of sewage purification, aquiculture, etc.

The invention discloses an integrated rotary oxygenating and feeding machine, and is applicable to the field of aquiculture. Through the integrated rotary oxygenating and feeding machine, air enters from an air vent pipe; a fan generates a high-pressure airflow; one part of the high-pressure airflow enters an aeration pipe through an aeration electromagnetic regulating valve, and then is aerated upwards in water through a microporous aeration head; one part of the high-pressure airflow enters a tail microporous push flat plate through a propulsion air quantity electromagnetic regulating valve, and generates horizontal thrust while being aerated, so as to enable a boat-form buoyancy tank to rotate around a central pile; in addition, one part of the high-pressure airflow enters a bait blowing pipe through a bait blowing electromagnetic regulating valve, so as to blow bait to a bait spreading opening to subsequently spread the bait on a water surface. The boat-form buoyancy tank sleeves the central pile through a rotary iron ring; an incoming cable is fixedly arranged in an inner ring of a conducting slip ring through the central pile; an outgoing cable is led out from the outer ring of the conducting slip ring. The upper part of a feed storage jar is provided with a feed storage chamber; the lower part of the feed storage jar is provided with a feed adding chamber; the two chambers are separated by a charging control valve; the feed adding chamber is separated from the bait blowing pipe by a bait throwing control valve.

The invention discloses a flocculation, aeration and sterilization water purifying agent for water of a culture factory and a preparation method of the water purifying agent. The water purifying agentis prepared from raw materials in parts by weight as follows: 40-50 parts of modified adsorbent filler soil, 10-16 parts of an aeration agent, 1-2 parts of a water purifying biological agent, 8-10 parts of activated carbon, 7-9 parts of shell powder, 5-7 parts of a nano additive, 10-14 parts of a compound plant extract, 10-12 parts of shell-lac and 3-5 parts of humate. The water purifying agent has the functions of flocculation and purification of water environments for aquaculture, can adsorb heavy metal ions, kill pathogenic bacteria in water, increase the content of beneficial microorganisms in water and increase the oxygen content of the water, is non-toxic and harmless to aquatic organisms, safe, environmentally friendly, lower in production cost, simple to prepare, comprises materials easy to obtain and has higher practical value and good application prospects.

The invention relates to a fishpond. The fishpond comprises a fishpond body, a sealing cover seat is arranged on the inner wall of the fishpond body and is provided with a sealing cover, the sealing cover is of arch structure, and an evacuation valve is arranged at the top of the sealing cover; an oxygenation pipe is arranged in the fishpond body. Oxygen is fed by the oxygenation pipe and undissolved oxygen rises to the upper portion of the arch sealing cover. The sealing cover and the sealing cover seat are submerged in the water to form liquid seal, and closed pure oxygen space between the sealing cover and the water surface is formed. The problems that farming density in industrial fish farming is hard to improve, oxygenation equipment is complicated, energy consumption is high, pure oxygen utilization rate is low and farming operation is inconvenient are solved, and economic benefits of the aquaculture industry are increased.

The invention discloses a hydraulic-ultrasonic combined microbubble generating device and system. The hydraulic-ultrasonic combined microbubble generating device comprises a microbubble generating cavity, a shrinkage section and a throat pipe. A water inlet pipeline, the shrinkage section, the throat pipe and a water outlet pipe are sequentially communicated end to end to form a circulative passage, the water inlet pipeline is communicated with a water tank via a connecting water pump, the water outlet pipeline is connected with a water outlet groove, and the water inlet pipeline is provided with a valve. The hydraulic-ultrasonic combined microbubble generating device is simple in structure, convenient to operate and remarkable in microbubble oxygenation effect. The hydraulic-ultrasonic combined microbubble generating device can be applied to effective oxygenation of fishery breeding and solve the problem of low efficiency and high energy consumption of an existing fishery breeding and oxygenating system effectively and can be largely promoted with the novel technology. In addition, sewage can be oxygenated, and degradation of harmful substances can be accelerated; the hydraulic-ultrasonic combined microbubble generating device can also be used for oxygenation and irrigation of crops to increase yield.

The invention belongs to the technical field of breeding of aquatic products, particularly relates to a liquid-oxygen oxygen-increasing high-density sturgeon culturing method, and aims to overcome the defects of difficulty in control on water temperature and water quality of a culture pond, low oxygen increasing efficiency of the culture pond and difficulty in realizing high-density culture of sturgeons of a sturgeon culturing method in the prior art. The method adopts a land culture pond; the culture pond comprises a culture zone and a temperature regulating zone; the temperature regulating zone is isolated form the culture zone by a fence; a coil is arranged in the temperature regulating zone; and cold or hot circulating water is filled into the coil to control water temperature of the culture pond. The culture pond selects water on the bottom layer of a drinking water source, wherein salinity of a water body is not more than 0.05%, N-NH3 is less than 0.5 mg / L, N-NO2 is less than 0.5 mg / L, TP is less than 50 mg / L, and pH is in the range of 6.0 to 6.8; burnt lime is adopted to disinfect the water body in the culture pond; dissolved oxygen in the water body reaches 5 mg / L in a liquid-oxygen oxygen increasing manner; the sturgeons are added to be cultured; in the culturing process, the dissolved oxygen in the water body is controlled in the range of 7 to 8 mg / L; in 0.5 hour before and after baits are supplied, the dissolved oxygen in the water body is controlled in the range of 9 to 10 mg / L; and in the sturgeon culturing process, the water body in the culture pond is replaced with a fresh water source.

The invention discloses an improved wave generating water pumping oxygen aerator device which comprises a floating boat body, a driving system and a transmission gear box body. The driving system comprises a motor and a variable gear mechanism. The variable gear mechanism comprises a motor transmission gear, an output shaft big gear, an output shaft small gear, a swinging shaft gear and a swinging shaft. The output shaft small gear is placed on the lower portion of the output shaft large gear. The output shaft large gear and the output shaft small gear are fixedly connected to an output shaft which is movably connected with the transmission gear box body. The motor transmission gear is fixedly connected to a motor shaft of a motor. The motor transmission gear is meshed with the output shaft big gear. Compared with the prior art, the improved wave generating water pumping oxygen aerator device has the advantages of being simple in structure, during using, the floating boat body swings ceaselessly under the rotating effect of a balance weight body, so that pond water generates waves which are transmitted outwards ceaselessly, accordingly, oxygen generation amount is increased, the pond water with oxygen fully dissolved is diffused all around in a wave-transmission mode, and oxygen aeration effect is better.

The invention discloses a solar aerator. The solar aerator has the advantages that a solar power generation panel converts solar energy into electric energy, a rotating motor converts the electric energy into kinetic energy of an impeller, and a water body is stirred by the impeller to increase the content of dissolved oxygen in water, so that energy conservation and environmental protection are realized; the electric energy is supplied to a moving motor; when a dissolved oxygen sensor detects that data of the water layer where the impeller is located are lower than a certain range, the movingmotor stops running, and a rotating motor rotates, in other words, the water layer of the impeller starts to be aerated; when the data detected by the dissolved oxygen sensor reaches a certain range,the moving motor starts to run, and the rotating motor rotates, in other words, the impeller moves downwardly to aerate the lower water layer; when the oxygen content of all the water layers reachesa certain range, the equipment stops running, so that the position of the aerated water layers and the increase amount of the oxygen are automatically adjusted, special operation by experienced technicians is not needed, the degree of automation is high, and the aeration effect is remarkable. The solar aerator is applied to cultivation of fish ponds.

The invention discloses a combined stereoscopic water culture device and method. The combined stereoscopic water culture device comprises a plurality of water culture boxes, wherein the plurality of water culture boxes are placed in a superposed and combined manner, a first water overflow column, a second water overflow column and a third water overflow column are arranged in each water culture box, a fixed round pipe vertically penetrates through the water culture boxes, a plurality of planting holes are formed in the peripheries of the stereoscopic water culture boxes, casings for planting are inserted into the planting holes, and a water pump is placed in the water culture box at the bottommost layer and is used for pumping nutrient solution into the topmost water culture box through an arranged delivery pipe at fixed time. Since the device is simple, runs reliably, is simple to maintain and is convenient to assemble, the device is suitable for forming large-scale planting factories through combination for standard, intensive and high-efficiency planting production; the manufacturing costs of facilities can be greatly reduced, the technical thresholds of use and maintenance are reduced and the yield is greatly improved.

The invention discloses a full automatic edible fungus bag loosening aerator. The full automatic edible fungus bag loosening aerator comprises a machine base, wherein the machine base is fixed with a hollow cylinder, piercing wheels which are used for piercing and aerating fungus bags are uniformly distributed at a bag outlet of the cylinder, the outer circumference of each piercing wheel is provided with a plurality of piercing needles, the outer side of a bag inlet of the cylinder is provided with a fungus bag conveying mechanism, and the fungus bags are transmitted from the conveying mechanism to a fungus bag feeding mechanism in the cylinder; the conveying mechanism is a chain wheel transmission mechanism driven by a motor and a transmission chain; the feeding mechanism comprises first ratchets which are uniformly distributed at the bag inlet of the cylinder, and the fungus bags are loosened through the first ratchets and are transmitted into the cylinder; and the middle part of the cylinder is provided with a hole, a second ratchet of an output shaft of a two-stage feeding motor fixed at the periphery of the cylinder extends into the hole, and the fungus bags are transmitted to the bag outlet of the cylinder through the second ratchet and then are pierced through the piercing wheels at the bag outlet of the cylinder. The full automatic edible fungus bag loosening aerator is convenient to operate, is time-saving and labor-saving, and has high fungus bag piercing efficiency and good loosening and aeration effects.

The invention relates to an intelligent aquaculture system comprising a central processing system; a water quality monitoring system which monitors the dissolved oxygen, the pH value, the water leveland the saline and alkaline of the water quality in the culture pond and transmits the dissolved oxygen, the pH value, the water level and the saline and alkaline of the water quality in the culture pond to the central processing system to be analyzed and processed; oxygenation equipment which is controlled to add oxygen to the culture pond by the central processing system; and a feed delivery system which performs automatic feed delivery according to the instruction of the central processing system. According to the intelligent aquaculture system, the water quality of the culture pond is monitored and regulated in real time by using the intelligent and automatic monitoring mode; automatic feed delivery is performed to the cultured product and the feeding amount and the feeding time are enabled to be more reasonable; and the yield and the quality of the cultured product can be enhanced.

The invention discloses an aquatic feed feeding device. The device comprises a sliding rod, a sliding block is arranged on the sliding rod, a rotating plate is arranged on the lower portion of the sliding block, and a motor A is arranged in the sliding block; a material throwing device and an oxygen increasing machine are arranged on the lower portion of the rotating plate, the material throwing device comprises a connecting rod, a barrel A is arranged on the lower portion of the connecting rod, a transverse plate A is arranged on the right side of the connecting rod, a fixed rod is arranged on the lower portion of the transverse plate A, a motor B is arranged on the lower portion of the fixed rod, an auger A is fixed to the motor B, a discharge tube is arranged on the barrel A, a materialstorage box is arranged on the discharge tube, a feed inlet is formed in the material storage box, a transverse plate B is arranged on the discharge tube, a discharge opening is formed in the transverse plate B, a rocker A is arranged on the transverse plate B, a rotating shaft is arranged on the barrel A, a bevel gear B is arranged on the rotating shaft, a bevel gear A is arranged on the motor B, an opening A is formed in the lower portion of the barrel A, an arc-shaped plate is arranged below the opening A, the motor B is arranged on the lower portion of the barrel A, a disc A is arranged on the motor B, a crank A is arranged on the disc A, and a rocker B is arranged on the crank A; the oxygen increasing machine comprises a compressed air bag. Accordingly, feeding is convenient, and thefeeding effect is good.

This invention discloses a combined oxygen-increasing machine for aquaculture. In this machine, a motor is used to drive a high-pressure air machine, whose air outlet pipe is connected with a gas-storage bag. Air-bleeding pipes distributed on the air-storage bag are extended into a water body of a certain depth, and microporous air-exhaust pipes are connected with the ends of the air-bleeding pipes. The main axis of the high-pressure air machine is decelerated through a planet gear decelerator and an umbrella gear decelerator, and the output axis drives the slurry impeller. All the parts are installed on a frame, which is fixed with the buoy below so that the frame is floating on the water. The machine can increase the oxygen content in the water by the microporous air-exhaust pipes, and has such advantages as simple structure, few parts.

The invention belongs to the technical field of fishing culture machinery, and relates to a combined type impeller, a manufacturing method and an aerator manufactured by using the same. The combined type impeller is annular and is formed in a way that a plurality of single impeller blades are mutually buckled and are in threaded connection with a support disk, one side of each sector impeller shell is provided with a large impeller blade, and the middle of each sector impeller shell is provided with a window for water to flow through and a small impeller blade. The manufacturing method of thecombined type impeller comprises the following steps of blanking, molding and assembling of the single impeller blades and the support disk. In the aerator manufactured by using the combined type impeller, the middle of the combined type impeller is sequentially connected with an output shaft of a reduction box and a motor, the outer end of a bracket connected with the body of the reduction box is connected with a floater, and the external surface of the motor or the external surfaces of the motor and the reduction box is / are provided with a water shield. The invention has the advantages of simple structure, attractive appearance, low production cost and high aerating capability, and is suitable to being used as the aerator in aquaculture industry and sewage treatment.

The invention discloses a sturgeon fry breeding method and a breeding pond. Sturgeon fry is placed into the breeding pond and bred through the following steps of 1, sterilization of the breeding pond; 2, controlling of quality of the sturgeon fry; 3, temporary rearing of the sturgeon fry; 4, mouth opening and feeding of the sturgeon fry; 5, alternative feeding of live baits and artificial diet and domestication; 6, disease prevention and control; 7, pond inspection and recording. According to the sturgeon fry breeding method and the breeding pond, different rearing methods are adopted according to requirements in different stages of sturgeon breeding, the survival rate of the sturgeon fry is high, breeding cost and risks are lowered, and economic benefits are raised.

The invention relates to an impeller which comprises a tapered body, a plurality of blades and a fixing seat. The impeller is formed by one-time injection moulding, the fixing seat is positioned in the tapered body, connecting holes matched with a flange of an output shaft of an aerator are formed in the fixing seat, the blades are arranged on the outer side of the tapered body and are obliquely combined with the tapered body, thrashing plates basically vertical to the upper end face of the tapered body are arranged at the upper end of the outer side of the tapered body, and smooth transition is realized between working faces C of the thrashing plates and working faces A of the blades. Water flow driven by the blades splashes upwards through the working faces C of the thrashing plates to enable water splash to rise and enable a water body to disperse, so that contact surface with the air is increased to improve aeration effect. The weight of an alloy-aluminum pressure-casted speed reducing box is greatly reduced, and a small-size flat floating ball can be arranged at the other end of a supporting end to enable the aerator to keep afloat, so that a flat surface is enable to be relatively parallel to the water flow direction during working of the aerator, resistance of a floating body on the water flow during working of the aerator is reduced, and aeration efficiency is improved.

An integral Orbal oxidation ditch combination type aeration system comprises a surface plug flow aerator having an integral surface for sewage plug flow and aeration, and at least one aeration grid device arranged below water. The aeration grid device is connected with a fan through a pipe. The aeration grid device comprises an air pipe, the air pipe is vertically arranged, the upper end of the air pipe is provided with a bent pipe, a flange is arranged at the front end of the bent pipe, and the lower end of the air pipe is provided with an aeration grid horizontally arranged. The aeration grid comprises air branch pipes and a plurality of aeration pipes arranged in parallel, the air branch pipes are welded and communicated with the aeration pipes, and aeration air holes are arranged on the pipe walls of the aeration pipes. The aeration system combines blast aeration equipment and the surface plug flow aerator. The blast aeration equipment used for concentrated air supply and bottom aeration has high aeration efficiency and excellent oxygen supply effect. The surface plug flow aerator performs plug flow functions. The starting number of surface plug flow aerators is reasonably adjusted according to actual conditions, energy waste is avoided, power is saved, and device installation and maintenance are convenient.

The invention relates to aquatic water autonomous cruise multistage aerobic equipment. The equipment comprises a bearing driving device, an aeration device, a detection control device and a power supply storage device; the bearing driving device comprises a floating platform, driving components and a direction sensor, and the driving components are uniformly installed on the edge of the floating platform; the direction senor is installed on the floating platform and electrically connected with the detection control device; the aeration device comprises an integration box, a miniature oxygen generator, an air pump, a water pump, a water pump pipe, a return pipe, a connecting shaft and a spray head; the integration box is installed on the upper portion of the floating platform, the integration box, the air pump and the miniature oxygen generator are connected in sequence, the water pump pipe, the return pipe and the connecting shaft penetrate through the floating platform separately, thewater pump pipe, the water pump, the integration box and the return pipe are connected in sequence in the water flow direction, and the connecting shaft is connected with the integration box; the spray head is connected with the water pump. The equipment can achieve multistage aeration according to the anoxia grade. The invention further relates to an aquatic water autonomous cruise multistage aerobic method, and belongs to the technical field of aquaculture.

The invention relates to a device of a pond culture machine, in particular to a mechanical device which can automatically move, run and work in a pond, i.e., a pond bottom sediment agitator, wherein a horizontal sliding plate (131) is arranged on the bottom of the pond bottom sediment agitator, an L-shaped cylindrical water barrel (132) is arranged above the horizontal sliding plate (131), stainless steel screens (135) used for preventing fish from entering are arranged at an upper opening and a lower opening respectively, a floating body assembly (138) is used for clamping the exterior of the water barrel (132), a sediment lifting device (134) is arranged inside a vertical tube of the water barrel (132), a submersible motor (134-g) is used for supplying driving power and transfers the power to an air floating output shaft (134-b) at the lower end part through an output shaft by a gear box and to a propeller (134-d) which is arranged relatively upwards through another output shaft which has another speed, and the air floating output shaft (134-b) is connected with a driving air floating generator (134-a). The pond bottom sediment agitator has a simple structure, is easy to manufacture and convenient to use, has a good bottom sediment agitating effect and an oxygen increasing effect, and enables the pond bottom sediment to give full play to the ecological functions without polluting the environment.