54results about How to "Guaranteed dissolved oxygen" patented technology

The invention discloses a pearl cultivation method, and belongs to the aquatic product cultivation technical field; the method comprises the following steps: selecting a cultivation room to cultivate pearl oysters, wherein the cultivation room comprises a culture pond, a first purifying pond, a second purifying pond, and a water storage pond connected in sequence, and top surfaces of the four parts gradually descends in a stepped manner; utilizing a tide difference principle to realize water self-discharge self-irrigation in the pond; arranging a filtering net and a mesh screen to purify water body, thus saving energy, and reducing cultivation cost; arranging the bottom of a net cage to be a waveform surface so as to prevent pathogen infection, thus providing better growth environment for the pearl oysters; preparing nutrient solutions of different components to process cell small particles and pearl cores, thus improving core planting rate, and reducing core repelling phenomenon; applying different fertilizers to accelerate pearl oyster maturation in different stages, and promoting pearl quality in the same time.

The present invention discloses an aquaculture monitoring and user remote control method. Based on the interaction of a front-end information acquisition and equipment control device of each fish pond, a management service platform and a user service platform, various types of water quality information can be stored. Meanwhile, the functions of user service authentication, event alarm information storage and event alarm information notification are realized at the same time. Water quality data are provided for users, so that users can check the water quality data in real time. Meanwhile, users can set equipment parameters or manually control the equipment. Therefore, the platform-based unified management and maintenance of aquaculture monitoring equipment is realized. Meanwhile, the equipment is in good interaction with users, so that users can check monitoring data in real time and control the field equipment. By means of a knife switch and other graphical controls, the on / off state of an aeration pump can be controlled. Therefore, the above operation is closer to the actual operation of farmers, so that the good interactive experience of users can be further ensured.

The invention belongs to the technical field of extraction of gold ore and gold containing gold tailings and in particular relates to a gold cyaniding leaching aided agent and application thereof in agold cyanide leaching process. The gold cyaniding leaching aided agent contains the following raw materials in parts by mass: 6-8 parts of ammonium fluoride, 1-3 parts of lead nitrate and 1-2 parts of hydrogen peroxide. During actual application, the ratio can be reasonably regulated according to ore properties. Aiming at the ore properties, the leaching aided agent is added in the gold cyanidingand leaching process, so that gangue minerals, sulfides or oxide films on surfaces of gold minerals can be effectively damaged, and exposure of the gold minerals is accelerated and enlarged. Therefore, the gold minerals can be efficiently combined with cyanides, and the leaching rate of the gold is increased.

The invention discloses a membrane oxygenation type container for transporting aquatic living bodies, comprising a box body on which a sealing cover, a water inlet pipe and a water outlet pipe are arranged. The membrane oxygenation type container for transporting aquatic living body is characterized in that the box body mainly comprises an oxygen supplying area and a fish culturing area which are separated from each other by a grid-like partition board, the oxygen supplying area is arranged on the side of the box body, at least one hollow fiber is laid in the oxygen supplying area, the wall of the hollow fiber is provided with micropores, one end of the hollow fiber penetrates through an air inlet hole so as to be connected with an outside oxygen supplying pipe, and a sealing device is fixed between the outer wall of the hollow fiber and the air inlet hole. Adopting the membrane oxygenation, the membrane oxygenation type container for transporting aquatic living body can realize the bubble-free oxygen supply, improve the oxygen dissolving efficiency, ensure the waterbody oxygen dissolving degree during the transportation of the aquatic living bodies and provide the environment suitable for the aquatic living bodies to live, thereby greatly improving the survival rate of the aquatic living bodies.

The invention discloses a pond water power forming device and method. The pond water power forming device comprises a floating body which is of a diving type structure and is adjustable in buoyancy, a speed reduction box, a motor, surge blades and a water lifting impeller. A water lifting rotating shaft and a surge rotating shaft are arranged at the output end of the speed reduction box and rotate in a differential mode, the rotating speed of the water lifting rotating shaft is higher than that of the surge rotating shaft, the water lifting impeller is connected with the water lifting rotating shaft, the surge blades are connected with the surge rotating shaft through a connecting frame, and the surge blades and the connecting frame are rotationally connected. The pond water power forming device is compact in structure and easy to operate, integrates the water power and oxygenation functions, and is capable of being automatically started and stopped and saving energy to the maximum in the oxygenation process under the three conditions of the most suitable oxygen concentration, the maximum water oxygen dissolving capability and an alerting oxygen dissolving concentration of pond culture, good in oxygenation effect and capable of ensuring uniformity of the water oxygen concentration of all parts, pond water composite and low-energy consumption water power formation and oxygenation are achieved, and the motor and the normal life of fishes are well protected.

An efficient oxygen increasing tank comprises a tank body, an oxygen supply device and a residual oxygen recovery device are arranged in the tank body, baffling baffles are installed on the inner wall of the tank body, and the tank body is provided with a water supply opening, an oxygen supply opening and a water outlet. The oxygen supply device comprises an oxygen supply pipeline and an oxygen supply aeration plate, the oxygen supply opening is connected with the oxygen supply aeration plate through the oxygen supply pipeline, and the oxygen supply aeration plate is provided with a first micropore channel. The residual oxygen recovery device comprises a residual oxygen recovery pipeline and a residual oxygen aeration plate, the recovery end of the residual oxygen recovery pipeline is arranged on the top of the tank body, the release end of the residual oxygen recovery pipeline extends downwards and is connected with the residual oxygen aeration plate, and the residual oxygen aeration plate is provided with a second micropore channel. According to the efficient oxygen increasing tank, the closed tank body is adopted, oxygen is increased circularly, and the oxygen dissolving rate is increased; the baffling baffles are distributed in a staggered mode, so that the oxygen dissolving path of water flow in an oxygen dissolving layer is prolonged to the largest extent; by means of micropore aeration, gas is crushed into micro particles, and the oxygen dissolving rate is increased. The oxygen increasing efficiency is high, oxygen waste is little, and the efficient oxygen increasing tank can be used in high-density live fish transport and breeding.

The invention discloses a complex planting and breeding method of kiwi fruits and aquatic products. The method comprises the following steps: controlling a distance between kiwi fruit ridges at about 8 m; digging a 3.5-4 m wide and 0.4-0.5 m deep water pond on a furrow; arranging anti-escape facilities at the surrounding of a pond bank; constructing a grid-shaped canopy frame on the kiwi fruit ridges which are about 1 m high and about 2 m wide; emptying the water in the pond when 20-30 days pass away before aquatic fries are bred; cleaning and disinfecting the pond by using quicklime or bleaching powder; breeding the aquatic fries in springs; applying a rotten livestock manure and baits; regulating water quality and keeping the water level in a stable state; harvesting the kiwi fruits in autumns; fishing the aquatic products after the aquatic products grow up and are suitable for fishing; emptying the pond water; covering kiwi fruit ridge bank by using sludge at the pond bottom; and repairing the ridge bank. Through complex planting and breeding of the kiwi fruits and the aquatic products, comprehensive operation can be motivated, the product yield per unit area is effectively increased, and both production and income are increased.

The invention provides an animal and plant co-culture device, and belongs to the field of aquatic animal and plant viewing. The device comprises a top box, a cylinder bearing the top box and a base bearing the cylinder. The top box is provided with a water pipe installation opening, a water inlet, a feeding hole and a cleaning hole. The top box is partitioned into a plurality of planting grooves through a plurality of groove plates. A drainage opening is formed in the lower end of the cylinder, and a timing loop jet pump is arranged inside the cylinder, surrounded by an isolation net and connected with a water pipe installation opening in the top box through an exhaust pipe; an air supply pipeline is arranged in the cylinder, two to three air holes are formed in the portion, at the bottom of the cylinder, of the lower end face of the air supply pipeline, and oxygen can be supplied to the cylinder by arranging a micro oxygen supply machine outside the cylinder, and an LED and other connecting wires are arranged inside the base. The device can achieve co-culture of fish, shrimp and aquatic plants, the device can achieve self-cleaning and self-circulation, and the device has the high scientificity, ornamental value and high economic value.

The invention discloses a high-density aquaculture oxygenation purification method and system. The method comprises the following steps of producing ozone through an ozone generator, producing singlet oxygen through a singlet oxygen generator, producing hydrogen peroxide through a hydrogen peroxide generator, respectively inputting the ozone, the singlet oxygen and the hydrogen peroxide in a gas-water mixer through a metering pump, inputting aquaculture water to be treated in an aquaculture water pipeline in the gas-water mixer through a pipeline, and conducting gas-water mixing under 3-5 barometric pressure; leading the aquaculture water after treatment of the gas-water mixer in the aquaculture water pipeline; and enabling quantity of the aquaculture water treated by the gas-water mixer to be 10-15% of the total of the aquaculture water. The high-density aquaculture oxygenation purification method and system can improve water sterilizing effects, efficiently improve water dissolved oxygen and achieve mariculture on the base of obtaining using effects of the ozone in the aquaculture industry. Through optimization design of a gas-water mixing mode, cost is substantially reduced, and oxygenation purification requirements of an aquaculture environment with high density and small water are met.

A biological method of water disposal that avoids disadvantages caused by an increase of the number of membrane filter units attributed to an increase of the volume of sludge disposed of, maintaining a given rate of sludge disposed of. Four or more membrane filter units (5) are immersed and laid at given intervals in series in aeration tank (4). The amount of suctioned filtrate water of each membrane filter unit (5) and / or the amount of air emitted toward each membrane filter unit (5) is sequentially increased from the raw water inflow side to the sludge discharge side. Accordingly, in response to the amount of solid matter adhering to the membrane surface of membrane filter units (5) on the sludge recovery side, the solid matter can be unfailingly detached from the membrane surface. Simultaneously, the sludge concentration at edge portions of the recovery side exhibiting the highest sludge concentration would be increased, thereby facilitating the discarding operation of recovered sludge and further realizing reduction of drying energy at discarding. Moreover, the discharge of filtrate water can be efficiently carried out.

The invention discloses a self-circulation sludge cleaning aquaculture pool. The self-circulation sludge cleaning aquaculture pool comprises a pool body, a diversion plate and a partition wall which are arranged in the pool body, the inner part of the pool body is divided into three cavities and the three cavities are sequentially a cleaning cavity, a breeding cavity and a purification cavity fromleft to right, wherein an opening communicating with the cleaning cavity and the breeding cavity is formed in the bottom of the diversion plate, a first filtering net is arranged in the opening, a drainage roller is arranged at the upper part in the breeding cavity; the device is provided with a drawer type filter and is convenient to clean; due to the arrangement of a spray head, the water bodyis subjected to circulation cleaning while oxygenation is carried out on the water body, the water quality is improved, the situation that the oxygen content in water is reduced due to excessive suspended impurities on the water surface is avoided through the arrangement of the drainage roller, the dissolved oxygen content in the water can be perfectly guaranteed to meet the growth requirements ofthe fish and shrimps, and the amount of sludge in the breeding cavity is effectively reduced through the arrangement of a collecting tank, and the excellent water quality in the breeding pond is further guaranteed, and has a very wide application prospect and popularization value.

The invention discloses a tor-brevifilis and spinibarbus-hollandi pond micro flowing water aquaculture method. The tor-brevifilis and spinibarbus-hollandi pond micro flowing water aquaculture method includes the following steps: A, repairing and maintaining a pond; B, breeding fries, wherein in the beginning of March, 790 to 810 young spinibarbus hollandis with the sizes ranging from 50 g to 100 g are bred in every 667 square meters, in mid-April, and 780 to 820 tor brevifilises with the body lengths ranging from 1.5 cm to 2.5 cm and 18 to 20 water-quality-adjusting fishes with the sizes ranging from 1.8 kg to 2.1 kg are bred in every 667 square meters; C, managing feeding, wherein before taming feeding is carried out, minced fillets are fed once every day, and the everyday feeding amount is 1% of the weight of all the fishes; after taming feeding is carried out, when the water temperature is lower than 28 DEG C, the everyday feeding amount is 3% to 4% of the weight of all the fishes, and when the water temperature is higher than or equal to 28 DEG C, the everyday feeding amount is 2% to 3% of the weight of all the fishes; D, managing the water quality, wherein water in the pond is kept in the flowing state, and the water flowing speed ranges from 19 cm / s to 22 cm / s; E, carrying out daily management; F, preventing fish diseases.

The invention discloses aeration equipment for wastewater treatment. The aeration equipment comprises a tank, a drive motor arranged at the top of the tank and an aerator arranged at the bottom of thetank, wherein a water inlet is formed in one side of the tank, a water outlet is formed in the other side of the tank, a first valve is arranged at the water inlet, a second valve is arranged at thewater outlet, a drive rod is connected to an output shaft of the drive motor and sleeved with a mounting sleeve, a stirring rod is movably connected to the mounting sleeve, a ripple groove is formed in the side wall of the tank, and one end of the stirring rod is arranged in the ripple groove. When air is dispersed in water by aeration heads, the stirring rod swings vertically during rotation, thestirring effect of the stirring rod is improved, the air dispersed into sewage can be dissolved better with the sewage, dissolved oxygen content of the sewage is guaranteed, normal vital movement ofmicroorganisms is maintained, and the sewage treatment effect is improved.

The invention discloses an aerobic front end local oxygenation sewage treatment device based on Internet of things. The aerobic front end local oxygenation sewage treatment device comprises multi-stage anaerobic jar groups and multi-stage aerobic biochemical pool groups in sequential and serial connection, wherein the multi-stage anaerobic jar groups comprise a plurality of anaerobic jars which are sequentially connected in series; the multi-stage aerobic biochemical pool groups comprise a plurality of aerobic biochemical pools which are sequentially connected in series; biological active filling materials are built in the anaerobic jars and the aerobic biochemical pools; the mutually and serially connected anaerobic jars, the aerobic biochemical pools, and the anaerobic jars and the aerobic biochemical pools are sequentially communicated through flow passing through holes; a gas supply device is arranged on the aerobic biochemical pool, connected with the anaerobic jar, in the multi-stage aerobic biochemical pool; the aerobic biochemical pools in the multi-stage aerobic biochemical pool groups are in staged arrangement with the gradually decreased height. By using the device provided by the invention, the multi-stage biochemical reaction is formed; organic contaminants in the sewage can be decomposed stage by stage and can be degraded; the deep removal of the contaminants can be realized; meanwhile, the fall design is used, so that the dissolved oxygen content of the sewage in each aerobic biochemical pool at the back end is ensured.

The invention discloses an efficient oxygen dissolving system for aquaculture and a dynamic intelligent control method of the system. The system comprises a plurality of high-aeration oxygen dissolving water preparation devices, a frequency modulation pump, an oxygen sensor and a PLC (programmable logic controller). Each high-aeration oxygen dissolving water preparation device comprises an oxygenbalance tank, an oxygen dissolving generator, a gaseous oxygen dissolving balance device, a gas-liquid interface generator and a moisture separator, wherein the oxygen dissolving generator is connected with the oxygen balance tank, the gaseous oxygen dissolving balance device is connected with the oxygen dissolving generator, the gas-liquid interface generator is connected with the gaseous oxygendissolving balance device and the oxygen dissolving generator, and the moisture separator is connected with the gas-liquid interface generator, the oxygen dissolving generator and the oxygen balance tank. The oxygen sensor is arranged in aquaculture water, the frequency modulation pump is connected with the oxygen dissolving generator and used for adjusting the quantity of high-aeration oxygen dissolving water conveyed into the aquaculture water, and the PLC is electrically connected with the gaseous oxygen dissolving balance device, the gas-liquid interface generator, the frequency modulationpump and the oxygen sensor. According to the system and the method, automatic control is realized, manpower is effectively saved, and fishpond daily management and cost are effectively reduced.

The invention discloses a loach fry hatching device. The loach fry hatching device comprises a mounting rack, an upper barrel body and a lower barrel body, wherein both the upper barrel body and the lower barrel body are inverted conical structures, the upper barrel body is movably arranged on the mounting rack, an overflow groove is formed in the upper end of the upper barrel body, a screen mesh is arranged in the overflow groove and can completely cover an upper barrel body opening, a water outlet pipe is arranged at one end of the overflow groove and is connected with a water purifying device, a communicating pipe is arranged at the bottom of the lower barrel body and communicates with the lower barrel body, the lower end of the communicating pipe communicates with a fry outlet pipe and a water inlet pipe separately, the other end of the water inlet pipe communicates with the water purifying device, a fry outlet valve is arranged at the joint of the fry outlet pipe and the communicating pipe, a water inlet valve is arranged at the joint of the water inlet pipe and the communicating pipe, a concave circular baffle is arranged above the communicating pipe, a plurality of connecting bars are uniformly arranged around the circular baffle, and a plurality of aerators are uniformly arranged on the internal wall of the upper barrel body. According to the loach fry hatching device, through the cooperative action of the aerators and the circular baffle, the direction of water flow is changed, the amount of dissolved oxygen in barrels is increased, and the survival rate of hatching is increased.

The present invention discloses a fault monitoring method and a system for an aquaculture monitoring system. A plurality of adjacent fish ponds are set as a cluster, and all fish ponds in the same cluster are provided with a plurality of dissolved oxygen information acquisition devices. The corresponding relationship among all clusters, fish ponds and dissolved oxygen information acquisition devices is stored. When the dissolved oxygen data of one dissolved oxygen information acquisition device are lost, a cluster corresponding to the above dissolved oxygen information acquisition device is determined based on the above corresponding relationship. According to the dissolved oxygen data of other dissolved oxygen information acquisition devices in corresponding clusters, the dissolved oxygen data of the current data-lost dissolved oxygen information acquisition device are derived. According to the derived dissolved oxygen data, the oxygen supplementation control of a fish pond corresponding to the data-lost dissolved oxygen information acquisition device is conducted. In this way, even when the dissolved oxygen information acquisition device of one fish pond breaks down, the normal oxygen supplementation control f the fish pond is not influenced at all. Therefore, the dissolved oxygen amount of the fish pond is always maintained within a safe range, so that the safety and the reliability of the entire monitoring system are improved.

The invention provides a cold water fish fry factory breeding method. The technical scheme is implemented relying on a specific incubation device. According to the specific incubation device, a cuboidglass fiber reinforced plastic tank serves as the body, a porous incubation frame serving as the incubation place is arranged in the incubation device, a metal frame, gas stone, a water inlet, a water outlet and other modules are arranged in the incubation device and are used for placing the incubation frame, ensuring the oxygen dissolution and realizing water flow circulation and the like respectively. On the basis, the fry breeding method suitable for cold water fish is designed on the basis of experimental means; in the method, the fish fry incubation conditions and juvenile fish breedingmode are comprehensively optimized, and a mature breeding strategy is formed on the aspects of temperate, water quality, illumination, breeding time, breeding density, feeding, sanitation and the like. Cold water fish fry is bred through the method, the survival rate and physique of the fish fry can be effectively improved, and the method has extreme popularization prospects.

The invention provides a multilayer fish culture pond. The multilayer fish culture pond comprises a pond body A, a pond body B and a pond body C. The fish culture pond in three-dimensional design is used in places with a large amount of mountain spring water, space can be utilized to the maximum, and meanwhile the dissolved oxygen content and cleanliness of the culture pond can be guranateed.

The invention discloses a unit-type bionic oxygen-carrying technological sewage purification device. The device comprises a vertical aeration pipe, wherein an aeration device is arranged at the lower part inside the vertical aeration pipe; an oxygen-carrying carrier is arranged inside the vertical aeration pipe above the aeration device, and a liquid outlet is formed in the side wall of the vertical aeration pipe at the bottom end of the aeration device; the liquid outlet of the vertical aeration pipe is connected with a liquid outlet pipe; and a teflon filter screen is arranged in the liquid outlet pipe. According to the device, the space is saved, and the aim of purifying sewage can be achieved since aerobic, anaerobic and facultative anaerobic reactions are performed by special carrier and immobilized microorganisms; and aeration of an aeration tank is carried out quantitatively and regularly, so that energy required by aeration can be greatly saved, and the aims of energy saving and high efficiency can be achieved.

The invention discloses an automatic aquaculture pond, which comprises a pond body, a vertical partition wall is arranged in the pond body to divide the pond body into two cavities, the right side ofthe partition wall is a purifying chamber, the left side of the partition wall is a culture cavity, an opening communicating the purifying chamber and the culture cavity is arranged at the lower partof the partition wall, a filter screen is arranged in the opening; a fan is arranged at the top of the partition wall, the wind direction of the fan faces towards the purifying chamber, according to the device, the purifying chamber is separated from the pond body through the partition wall, and a water drop plate is arranged in the purifying chamber, and the water flow is dispersed by the impactof the water drop plate on the water to increase the contact area between the water and the air, so that the dissolved oxygen amount in the water can be further improved, the dissolved oxygen amount in the water can be ensured under the condition that the air compressor is operated or not, a feeder can adjust the distance of feeding, so that the feed can be fully distributed in the fish pond, a lot of time is saved, and the fish and shrimps can be fully fed everywhere, the degree of automation is high, and the pond is suitable for promotion.

Provided is a method for simultaneously breeding lobsters and crucians. The method is characterized by comprising the steps of building breeding ponds, sterilizing the breeding ponds, fertilizing water, putting fry, putting fish baits, and conducting daily management and disease control. According to the method for simultaneously breeding the lobsters and the crucians, the lobsters are bred in a shallow water area and the crucians are bred in a deep water area, so that the species, amount and size of the bred fishes can be effectively controlled, breeding costs are reduced, and the economic benefits of breeding are increased.

The invention relates to a high-density fish farming method. The high-density fish farming method includes the following steps that (1) a water storage tank, fish farming ponds and glass houses are constructed, the fish farming ponds correspond to the glass houses in a one-to-one mode to form farming units, and the N farming units are evenly distributed in the circumferential direction of the water storage tank, wherein N is a positive integer greater than 1; (2) cultivation tanks are constructed in the glass houses, so that dynamic water exchange of the water storage tank, the fish farming ponds and the cultivation tanks can be realized, the cultivation tanks are internally provided with cultivation mediums for cultivation of green plants, the glass houses are used as office places equipped with light sources needed by photosynthesis of the green plants, and the photosynthesis of the green plants produces oxygen; (3) the water storage tank and the fish farming ponds are cleaned and disinfected, and then water is injected into water injection holes of the water storage tank; (4) fry are put in the fish farming ponds; and (5) feeding and fish disease prevention and cure are carriedout. The dynamic water exchange is realized through the fall head design among the water storage tank, the fish farming ponds and the cultivation tanks in the glass houses, farming fish with running water is realized, and the survival rate of fry and the density and yield of fish farming are improved.

The invention discloses a black and odorous water treatment system based on a constructed wetland. The black and odorous water treatment system includes a coagulative precipitation pool, a water inletarea, a constructed wetland pool, a water collection channel and monitoring equipment; the coagulative precipitation pool is communicated with the water inlet area, the water inlet area is communicated with the constructed wetland pool, the constructed wetland pool is communicated with the water collection channel, and the water inlet of the monitoring equipment is communicated with the constructed wetland pool; a filter medium and aquatic vascular plants are arranged inside the constructed wetland pool, wherein the aquatic vascular plants are located on the filter medium; the filter mediumis prepared from, by weight, 10-20 parts of gravel, 5-15 parts of coarse sand, 15-30 parts of limestone, 10-15 parts of zeolite and 40-50 parts of ceramic granules. By adopting the black and odorous water treatment system based on the constructed wetland, nitrogen and phosphorus in a water body are absorbed, the adsorption performance is high, the treating performance of the constructed wetland isensured, the COD removal rate reaches 70%, the TN removal rate reaches 60%, the TP removal rate reaches 50%, the content of dissolved oxygen is greater than 4 gm / L, and index parameters are monitoredonline.

The invention discloses an oxygen measurement and oxygenation system and a method for oxygenation control thereof. The oxygen measurement and oxygenation system includes an aerator, an overwater mobile carrier and an underwater bearing frame. The signal output end of a processor is connected with the aerator through an electromagnetic switch. The overwater mobile carrier is provided with a liftingmotor, a processor and a timer. A pulling rope is fixed to the underwater bearing frame, the top of the pulling rope is connected to the lifting motor, and the underwater bearing frame is provided with a dissolved oxygen sensor and a water temperature sensor. The dissolved oxygen sensor, the water temperature sensor and the timer are connected with the signal input end of the processor. The oxygen measurement and oxygenation system has the advantages that closed loop linkage control is performed on the aerator according to changes of water temperature and dissolved oxygen, and real-time collection and control over water quality are performed more effectively.

The invention relates to the technical field of throwers, and discloses a thrower with a large throwing area. The thrower comprises a floating block, the top of the floating block is connected with a bracket, a hopper is arranged on the side wall of the bracket, the bottom of the hopper is communicated with a conveying pipe, a throwing mechanism is arranged on the floating block, and a power assisting mechanism and an automatic discharging mechanism are arranged on the material throwing mechanism. By arranging six containing bins different in size, when a rotating motor rotates, due to the fact that the containing bins are arranged to be the six containing bins different in size, the weights of fodder in the containing bins are different, centrifugal force borne by the fodder is different, and therefore, when the materials are discharged through the automatic discharging mechanism, the conveying lengths of the materials in all the containing bins are different, an annular feed ring cannot appear when the materials are thrown out, and the problem that the dissolved oxygen amount is insufficient when fish schools eat the feed cannot be caused when the feed is fed.

The invention relates to a frog ecological breeding apparatus for quasipaa spinosa and a breeding method for quasipaa spinosa. The frog ecological breeding apparatus for quasipaa spinosa comprises a preparative frog pool, a frog pool and a voice playing device, wherein a shading net mask is arranged on the frog pool, sound-insulation plates are installed at the outer sides of the frog pool, and the voice playing device is installed at the bottom of the frog pool. According to the invention, aiming at different growth stages of the quasipaa spinosa, pools are divided into two types, namely, the preparative frog pool and the frog pool. In order to control the mating time and improving the mating rate, the outer sides of the frog pool are provided with the sound-insulation plates, and quasipaa spinosa mating is induced through sounds. By enriching nutrients, arranging cobblestones, stone caves and other hidden things in water, and planting acorus calamus and other aquatic plants in water for optimizing the environment in breeding pools, the survival rate of frogs and the quality of frog eggs are improved.

The invention discloses a moving bed bio-membrane reactor for domestic sewage treatment, which comprises a filter cartridge, a mounting hole is formed in one side of the filter cartridge, a liquid inlet box is hermetically connected to the inner wall of the mounting hole, a cooling box is fixedly connected to one side of the liquid inlet box, and an oxygen dissolving box is fixedly connected to one side of the cooling box. A lower reaction cylinder is fixedly connected to one side of the oxygen dissolving tank, an upper reaction cylinder is fixedly connected to the top of the lower reaction cylinder, an L-shaped plate is welded to the top of one side of the filter cylinder, and a first driving motor is fixedly mounted on one side of the L-shaped plate. The sewage treatment device has the beneficial effects that the structure is compact, sewage to be treated can be cooled and supplied with oxygen in advance, the dissolved oxygen amount of the sewage to be treated is increased, the filter screen plate can be rapidly and automatically cleaned, time and labor are saved, the downtime is shortened, the sewage treatment efficiency is improved, the labor intensity of workers is relieved, and use is convenient.

The invention provides a fish fry breeding pond, which comprises a cylindrical pond body, a water inlet pipe I, a drain pipe I, an excrement discharging pipe, an excrement collection tank, a water purification tank, an overflow pipe, a water pump I, a water outlet and an excrement outlet. The upper edge of the pond body is flush with the ground; the water inlet pipe I is arranged horizontally, oneend of the water inlet pipe I is communicated with the water purification tank through the water pump I while the other end is arranged in the inner wall of the pond body, and a 30-60-degree angle isformed between a water outlet direction of the water inlet pipe I and the tangent line of the periphery of the inner wall of the pond body; the water outlet is positioned in the middle of the bottomsurface of the pond body, and the lower end of the water outlet is connected with the drain pipe I; the middle of the bottom surface of the pond body is provided with the excrement outlet, and the excrement outlet extends out of the pond body from the lateral side along the lower portion of the pond body through the excrement discharging pipe to penetrate into the excrement collection tank; the overflow pipe is arranged in the middle of the side wall of the other side of the excrement collection tank and communicated with the water purification tank. The fish fry breeding pond has advantages that defects in the prior art are overcome, fish excrement can be cleared conveniently and quickly, and energy consumption can be reduced as far as possible while oxygen supply is improved.