94results about How to "Sufficient water source" patented technology

The invention relates to the technical field of computers and networks, in particular to a crop growth monitoring method and system based on big data and cloud computing. The system comprises an acquisition module, a transmission module, a storage module, an agricultural ecological environment information analysis application module and an agricultural facility remote control module; the acquisition module is used for acquiring various information in an agricultural ecological environment, and the transmission module is used for transmitting the acquired information to the storage module for storage. When the water storage capacity calculated by the water quantity acquisition unit is not enough to irrigate crops, at the moment, the agricultural ecological environment information analysis and application module gives an alarm to a user to remind the user of reducing agricultural objects with large water demand and replacing the agricultural objects with large water demand with the agricultural objects with crops capable of resisting drought, so that sufficient water sources are guaranteed, and the situation that the agricultural objects with large water demand are excessively planted, and consequently no water is available when the agricultural objects lack of water is avoided. Meanwhile, working behavior records of the planters are recommended, so that the planters are helped to obtain the optimal planting efficiency.

The invention discloses fracturing fluid and a preparation method thereof. The fracturing fluid is formed by mixing base fluid and crosslinked fluid according to the crosslinking ratio of 100 to 5; the base fluid consists of the following compositions according to mass percentage: 03 to 0.5 percent of hydroxypropyl guanidine gum HPG-1, 0.4 to 0.5 percent of a temperature stabilizer for the fracturing fluid, 0.05 to 0.15 percent of a low temperature evocating agent for the fracturing fluid, 0.2 to 0.3 percent of a cleanup additive and the balance being sewage water from a crude oil layer; and the crosslinked fluid consists of the following compositions according to mass percentage: 0.5 to 1.5 percent of borax, 0.5 to 1.5 percent of ammonium persulfate and the balance being clear water. The method for preparing the fracturing fluid comprises the following steps: the prepared base fluid and the prepared fracturing fluid are respectively placed for 100 to 120 minutes and are mixed according to the crosslinking rate of 100 to 5 to form the fracturing fluid. The method adopts the sewage water for matching the fracturing fluid, saves cost, has small pollution to the environment and improves the wave and volume of a water-driven reservoir and the oil-sweeping efficiency.

The invention relates to a fire extinguishing apparatus, in particular to a remote control type fire extinguishing apparatus for a high-rise building, which comprises a water tank arranged at the top of the building, and also comprises a fire extinguishing mechanism sliding to the side surface of the building from the top of the building through a connecting mechanism, and a nozzle arranged outside the building and rotatably communicated to the water tank. The fire extinguishing mechanism comprises a connecting arm capable of controlling the action through a control line, and the bottom end of the connecting arm is provided with a nozzle communicated to the water tank and the side surface of the connecting arm is provided with a camera, the contact part of the connecting arm and the connecting mechanism is provided with a rotating mechanism capable of enabling the connecting arm to rotate, the control line of the connecting arm and the connecting mechanism are connected to a winch mechanism which is arranged at the top of the building and is capable of being remotely controlled, and the flexibility of the control line of the connecting arm and the connecting mechanism is controlled by the winch mechanism. The fire extinguishing apparatus can be used for immediately controlling the fire spread and eliminating fire at a fire point of the high-rise building.

The air conditioner cabinet with humidifying function has an indoor unit, and the indoor unit includes casing, humidifier with water tank and air outlet pipe near the wind outlet of the indoor unit, and water storage tank connected via pipe and water pump to the humidifier water tank. The humidifier water tank is provided with float switch connected via wire to the water pump and the air outlet pipe of the humidifier has several outlet ports parallel to the wine outlet of the indoor unit. The present invention makes it possible to replenish water to the humidifier water tank timely and has large humidifying range and homogeneous humidify regulation.

The invention discloses an irrigation method and device based on crop growth cycle water use features. The irrigation method is characterized in that whether crops are short of water or not in the growth process is judged according to actually measured soil water content, the water demand of the current growth stage of the crops and the rainfall of the coming day, the actual water demand of the crops is calculated if the crops are short of water, a water pump is started in a self-adaptation manner to supply water for the crops according to the relation between the reserve of a reservoir and the actual water demand, and management staff are notified when the reserve of the reservoir is insufficient. By using the method to water the crops, each growth stage the crops can have sufficient water to achieve the optimal growth state of the crops so as to finally increase the yield of the crops, and the safety of a water pump can be guaranteed at the same time.

The invention discloses a continuous spraying air-cooled atomization and vaporization type condensing system and an air-conditioning method. The condensing system comprises at least one air-conditioner, an atomization device, at least one water storage device and a compression device, wherein each air-conditioner comprises an evaporator, radiating fins, a fan and an air-cooled condenser; each air-cooled condenser is connected with a set of atomization device; each water storage device comprises at least one condensed water collecting device and at least one purified water source, and each condensed water collecting device is arranged under the evaporator for collecting condensed water produced by the evaporator; and the compression device for compressing the condensed water is connected between a water outlet of the water storage device and a water inlet of the atomization device. The condensed water and the purified water source are adopted, compressed and sprayed, so the system has high pressure and enough water source, can realize continuous spray and simultaneous use of a set of airflow atomization device for multiple air-conditioners, has low cost, can quickly reduce temperature, and is particularly applicable to the planting and breeding industries which need air-conditioning in large closed spaces.

The invention discloses a codonopsis pilosula seedling planting method. The codonopsis pilosula seedling planting method is implemented in a planting greenhouse and comprises the following steps of A, sowing including that codonopsis pilosula seeds are planted in the greenhouse; B, watering including that water is pumped from a water tank into a water filling pipe which moves reciprocatingly under the action of a cam, water holes and through holes are alternately communicated, water can intermittently fall into planting fields in the greenhouse, and superfluous water can be drained via a draining pump; C, shading including that a driving mechanism drives a rack to slide, the rack drives a gear to rotate, and the gear drives shading plates to shade from light. Compared with the prior art, the codonopsis pilosula seedling planting method can provide sufficient water sources for planting codonopsis pilosula through the water tank, ensure more uniformity and thoroughness of irrigation of the planting fields and keep sold in a moisture state through rain type irrigation operation, and shade the planting fields from light through the shading plates when the codonopsis pilosula seeds need shading.

The invention discloses a method for large-scale ecological aquaculture of coilia ectenes in a greenhouse. The method which adopts semi-running-water ecological aquaculture in the greenhouse includes: 1) water source selection; 2) aquaculture facility configuration; 3) ecological aquaculture; 4) adult fish harvest. Underground water of a deep well deeper than 30m is selected to serve as the water source, and an eel formula feed is used as a powdery formula feed. The method for large-scale ecological aquaculture is large in aquaculture scale, high in aquaculture density and high in yield, and coilia ectenes bred according to the method is high in survival rate and extremely high in nutritive value.

The invention provides an air conditioner water circulation system, a control method and an air conditioner. The air conditioner comprises an indoor unit and an outdoor unit. The air conditioner watercirculation system comprises a condensed water collecting component, a water storage component and a humidifying component which are sequentially connected. The water storage component comprises a water storage tank and a compressor water tank which are connected. Water collected in the water storage tank enters the compressor water tank for heat exchange and then indoor air is humidified throughthe humidifying component. According to the water circulation system, in a heating mode, the water circulation system is intelligently adjusted based on the relationship of values of indoor temperature and humidity and preset values, so that the indoor air humidity is increased, and the comfort of a human body is improved.

The invention discloses a novel snow maker and relates to the technical field of snowmakers. An air compressor is arranged on a rack and is connected with an air-water mixer through a pipeline, the other end of the air-water mixer is connected with a water pipe, and an air-water mixer mist outlet pipe is arranged on the upper portion of the air-water mixer. An outer ring mist outlet pipe and an inner ring mist outlet pipe are arranged on the air-water mixer mist outlet pipe, the outer ring mist outlet pipe is connected with an outer spray pipe, the inner ring mist outlet pipe is connected with an inner spray pipe, the inner spray pipe is provided with multiple inner spray nozzles, and the inner spray pipe is connected to the inner wall of a wind casing through a support. The water pipe is connected with a filter, the outer end of the filter is connected with an underground water supplying device through the water pipe, the underground water supplying device is arranged on the bottom of the rack, can supply continuous water, and guarantees sufficient water sources, the snow making density can be further improved, and the snow making efficiency is improved greatly.

This invention discloses a kind of water replenishing cooling integral type air condition machine.

The invention discloses a field intensive planting method of Polygonatum kingianum Coll.et Hemsl. The field intensive planting method comprises two steps of seedling-raising and intensive planting, wherein the seedling-raising method adopts seed seedling-raising or rhizome seedling-raising, and the method of seed seedling-raising comprises the following steps: S1, seed selection and treatment; S2,preparation of a seedling-raising substrate; S3, nursery design; S4, nursery disinfection; S5, sowing; and S6, nursery management. In the field intensive planting method, the seedling-raising substrate is combined with a plant growth regulator, a seedling-raising cycle of Polygonatum kingianum Coll.et Hemsl is greatly shortened, and the field intensive planting method realizes large-scale planting of Polygonatum kingianum Coll.et Hemsl, and reduces the labor cost of large-scale planting of Polygonatum kingianum Coll.et Hemsl.

The invention relates to a ship-mounted black odoriferous water treatment device and belongs to the technical field of water environment restoration engineering. The ship-mounted black odoriferous water treatment device comprises an agent feeding system, a micro-nano-aeration system, a control system and a power system. Through combination of a submersible pump and a filter screen, large granule foreign materials are isolated so that later equipment normal running is guaranteed, the enough solvent source and inlet liquid source are supplied for an agent preparation process and an agent spraying process and agent adding efficiency is improved. A powder automatic feeding device guarantees agent preparation convenience and fastness. Through combination of an agent storage tank and an agent feeding tank, agent feeding continuity and efficiency are guaranteed and an operation cost is saved. Through combination of the agent feeding system and the micro-nano-aeration system, a water dissolved oxygen amount is increased and the agent can be uniformly dispersed in black odoriferous water. Equipment parameter setting and data processing can be finished through the control system so that equipment operation efficiency is greatly improved.

The invention discloses an intelligent fire-fighting device for garden construction. The intelligent fire-fighting device comprises a detection device, a fire extinguishing device, a control device, aWIFI module, an alarming device and an external power supply; the detection device comprises a temperature detection module and a smoke detection module; the fire extinguishing device comprises a fire extinguishing element and a switch element; the control device comprises a signal receiving element for receiving a signal transmitted by the detection device, a signal sending element for sending the signal to the fire extinguishing device, a rotating element for adjusting the direction of the fire extinguishing element, a vertical rotating motor for driving the rotating element to rotate in the vertical direction, and a horizontal rotating motor for driving the rotating element to rotate in the horizontal direction; the rotating element is movably connected with the fire extinguishing element, and the fire extinguishing element can rotate by 360 degrees on the rotating element; and the WIFI module comprises a WIFI element and an intelligent terminal, the WIFI element is electrically connected with the detection device and the alarming device, and the WIFI element can send data detected by the detection device to the intelligent terminal in real time.

The invention discloses a tunnel fire-fighting system taking road surface water and tunnel surge water as water sources. The tunnel fire-fighting system comprises a drainage ditch, a longitudinal drainage and seepage ditch, a side ditch, a transverse drainage pipe, a road surface stream trough, a water quality sensor, a switching mechanism, a filtering pond, a sand sediment trap, a low-position water pond, a sewage pond, a pump room, a high-position water pond and a tunnel fire hydrant, wherein the filtering pond, the sand sediment trap, the low-position water pond, the sewage pond, the pump room, the high-position water pond and the tunnel fire hydrant are built nearby a tunnel. Due to the fact that road surface water and the tunnel surge water serve as the water sources, the water sources are more enough, water is convenient to fetch and the cost is reduced; due to the fact that the low-position water pond, the pump room and the high-position water pond are arranged, water pressure can be automatically provided for the tunnel fire hydrant; the switching mechanism is controlled to conduct the water inlet to the pump room or the sewage pond by judging whether the water sources are polluted the water quality sensor, so corrosion of the tunnel fire hydrant and a connecting pipeline due to a pollution source is avoided.

The invention discloses a traditional Chinese medicine planting greenhouse. The greenhouse comprises main stand columns, arch bars and a greenhouse wall steel framework, wherein the top of the greenhouse wall steel framework is connected with multiple arch bars to form a greenhouse framework; ventilation windows, water supply pools, water inlet pipes, water outlet pipes, movable insecticidal trolleys, dimming membrane rolls, water supply pumps and rainwater collecting tanks are arranged, sufficient water sources can be kept through cooperation of the water supply pools and the rainwater collecting tanks, and water is sprayed from spray heads through the water outlet pipes to irrigate traditional Chinese medicines; on the movable insecticidal trolleys, ultraviolet lamps are used as insect trapping devices, acoustic wave insect traps are adopted for trapping insects, then, insecticidal electroplates are used for removing insects, and illumination suitable for plant growth is adjusted quickly through rollers and the dimming membrane rolls; ventilating fans on the greenhouse wall steel framework purify air through filter net layers and HEPA filter layers and control the concentration of CO2. The greenhouse has the benefits of good ventilation effect, remarkable insecticidal effect, adjustment of illumination suitable for plants and timely water supply.

The invention discloses a large liquid measure constant pressure displacement indoor physical simulation experiment device. The large liquid measure constant pressure displacement indoor physical simulation experiment device comprises a first automatic water adding device, a second automatic water adding device, an oil adding device, a first impurity removing device, a second impurity removing device, a pressure collecting device, an oil-water metering device and a rock core clamping device; control devices of the automatic water adding devices are provided with water adding control buttons and displacement control buttons; the automatic water adding devices comprise vacuum pumps. Two sets of the automatic water adding devices are adopted to work alternatively, enough water sources are provided for a large liquid measure constant pressure displacement experiment, and the experiment schedule cannot be influenced; the control devices serve as central systems in the whole process of water adding and displacement; on the one hand, the vacuum pumps provide power for water containers to feed water, on the other hand, dissolved gases of the water are pumped out through vacuum pumping, and therefore the influence of the dissolved gases of the water on the displacement experiment is reduced; the first impurity removing device is used for removing impurities of the water, and the second impurity removing device is used for removing impurities of oil; the oil-water metering device can measure the volume of the oil and water accurately, and errors are reduced.

The invention relates to the technical field of environment monitoring and treatment, in particular to an environment monitoring and emergency treatment method and a system. The method comprises the following steps: (S1) when the dust concentration or the smoke concentration is normal, window leaves are opened; (S2) when the dust concentration exceeds a threshold, the window leaves are closed, and water is sprayed out of a window; (S3) when the smoke concentration exceeds the threshold, the window leaves are closed, and the water is sprayed indoors; and (S4) when the two concentrations both exceed the thresholds, the window leaves are closed, and the water is sprayed indoors. The system comprises a dust sensor, a single-chip, a motor controller, a wireless transmission module, a movable frame and a motor; and after the dust sensor detects that the dust concentration exceeds the threshold, the movable frame is extruded when the window leaves are closed, and the water is sprayed out of the window to combine dust particles out of the window with the water. When the dust content is higher, the window leaves are closed to prevent the dust particles from entering indoors; a nozzle sprays the water out of the window; and the dust particles are combined with the water to flow to the ground along with the water so as to prevent the dust particles remained out of the window from entering a room during opening of the window.

The invention discloses a PVC tube for planting. The PVC tube comprises an outer tube body and an inner tube body, the inner tube body is sleeved with the outer tube body, the inner tube body and the outer tube body are distributed in a concentric circle mode, a plurality of holes are formed in the lateral wall of the outer tube body, and a plurality of first water tubes are arranged between the outer tube body and the inner tube body. The PVC tube for planting is simple in structure, convenient to use, large in plant planting superficial area and sufficient in provided water source.

The invention relates to a building safety protection system which is applied to the technical field of building safety. According to the technical scheme, the building safety protection system is characterized by comprising a fire alarm, a door locking module, a water curtain module and a backflow module, the fire alarm is arranged at the top of a channel, and the side wall of the channel is provided with a reserved groove; a safety door includes a first door plate and a second door plate; the door locking module includes a lock box, a limit block and an air cylinder, the lock box is arrangedon the first door plate, the limit block is slidably connected to the second door plate, one end of the limit block is inserted into the lock box, and the other end of the limit block is connected with a piston rod of the air cylinder. The building safety protection system has the advantages that when a fire occurs, the door locking module is automatically opened, so that the public can push thesafety door to escape automatically; and meanwhile, a water curtain formed by the water curtain module plays a role in the flame obstructing effect, and the risks caused by spreading of the fire to lives of the public are reduced.

The invention discloses a method for breeding soft-shelled turtles artificially. Soft-shelled turtles are put in a pool with adequate water, good water quality, fresh air and non-polluted soil, and bred together with tilapia mossambica, tarpons, bighead carps and the like; the soft-shelled turtles are bred in an imitated living environment of wild soft-shelled turtles; fresh water is refilled regularly; the water quality is good; the air is fresh; a certain amount of sand is stocked at each pool for the activities of the soft-shelled turtles; non-polluted breeding is implemented; the key links such as regulation and control of water quality, selecting and purchasing of seedlings, usage of feed, usage of disease control drugs and the like are mastered in an emphasized way; and the soft-shelled turtles are ensured to grow normally.

The invention provides an antifreezing system for a Dangshan crisp pear tree in early spring and an antifreezing method thereof. The antifreezing system comprises a water supply system, a control system and a water spray system, wherein the control system comprises a main control panel, a control switch, a plurality of probe heads, a soil water content monitor and an audible alarm; the control switch is used for opening and closing of a water pump; and the plurality of the probe heads comprise a first temperature sensor, a second temperature sensor and a third temperature sensor which are arranged under the projection of a tree crown from top to bottom. With the method provided by the invention, the water spray system is operated according to changes of air temperature and soil water content which are monitored by temperature sensors and the soil water content monitor in real time; the environmental temperature and the soil water content of an orchard are controlled through underground water micro-sprayed from micro-spray pores of pipelines of the water spray system; thus, freezing injury of the Dangshan crisp pear tree in a flower season can be effectively prevented; meanwhile, water resource is fully utilized; and an energy-saving and environment-friendly antifreezing measure is provided for the orchard.

The invention relates to a water-saving maintenance device used for transplanting a nursery stock in a park. The water-saving maintenance device comprises a power hub mechanism which is connected to a water source, a pipeline mechanism which is connected to the power hub mechanism and a micro sprinkler which is connected to the pipeline mechanism, wherein the power hub mechanism comprises a booster pump and a filter which is connected to the booster pump, the pipeline mechanism comprises a first grade pipeline which is arranged between the filter and the lower part of the nursery stock, a second grade pipeline which is connected to the first grade pipeline and is arranged upwards along the tree trunk of the nursery stock, and a third grade pipeline which is arranged between the second grade pipeline and the micro sprinkler, and the micro sprinkler is arranged at a place which is 30-70 cm from the top of the nursery stock. After the device is operated, water is sprinkled into water mist through the micro sprinkler so as to form a microclimate surrounding a tree body, an unique high-humidity, low-temperature and stable microclimate environment surrounding the tree is formed in drought and high-temperature seasons, and the environment is very beneficial to root-taking and survival of the tree.

The invention provides flying equipment for high-rise firefighting and mainly aims to solve the technical problems that conventional firefighting equipment does not have sufficient extinguishment height, is likely to be limited by objective conditions such as road jam and the like, is expensive and the like. According to the technical scheme, the flying equipment is characterized by comprising a central controller (2) and propellers (6), wherein the propellers (6) are symmetrically arranged on two sides of the central controller (2); a central revolving shaft of the propellers (6) is a hollow pipe, a telecontrol antenna module (9) connected with the central controller (2) is arranged at the upper part, a firefighting pipe connection port (7) is formed in the lower part and can be connected with a firefighting pipe (10), and a firefighting lance (4) is arranged on one side of the central controller (2). The flying equipment is mainly used for firefighting.

The invention discloses a method for preparing super absorbent resin by carboxymethyl bagasse, which comprises the following steps: mixing a certain amount of sodium hydroxide solution and bagasse powder in a three-mouth bottle, immersing for fully swelling the bagasse; adding the sodium hydroxide solution in a mixture, placing in a water-bath pan at 35 DEG C for stirring for 1 hour, adding a sodium chloroacetate solution in the reaction mixture, then dumping the reaction mixture in a stainless steel disc for reacting for 2 hours in a roasting oven at 75 DEG C, drying and washing by ethanol with concentration of 70%, drying and crushing to obtain the carboxymethyl bagasse, uniformly mixing acrylic acid, sodium salt, the carboxymethyl bagasse, potassium persulphate, N,N'-methylene bisacrylamide and deionized water, protecting by nitrogen, performing water-bath heating and stirring, stopping stirring when polymerization temperature is reached, continuously heating, insulating and reacting for 2 hours in boiling water bath, stopping introduction of nitrogen, removing a reaction object, cutting into small blocks, placing in an air blast roasting oven at 40-60 DEG C and drying to constant weight, and crushing to obtain the product.

The invention provides kiln gas semi-dry process defluorination desulphurization dedusting equipment. The kiln gas semi-dry process defluorination desulphurization dedusting equipment comprises a technology water tank, a technology water pump, a first stage technology water flowmeter, a defluorination tower Venturi segment structure, a leakproof cap, a waste dust packaged conveying vehicle structure, a defluorination tower structure, a second stage technology water flowmeter, a defluorination tower outlet flue, a cyclone separator, a cyclone separator outlet flue, a discharge pipe, a first stage smoke discharge pipe, a defluorination tower material return inclined groove, a lime powder cabin structure, a first stage connecting pipe, a hand-operated valve, a desulphurization outlet flue, asmoke outlet pipe, a desulphurization Venturi segment, a desulphurization lower layer nozzle, a desulphurization upper layer nozzle, a desulphurization tower, a flue gas induced draught fan, a cloth bag dedusting cylinder structure, a desulphurization material return inclined groove, and a second stage smoke discharge pipe. According to the kiln gas semi-dry process defluorination desulphurizationdedusting equipment, the defluorination tower and the desulphurization tower are adopted, it is beneficial for defluorination and then desulphurization, interaction of defluorination and desulphurization is avoided, defluorination and desulphurization effect is improved; the mechanical valve, a flue gas inlet pipe, and a filter screen are adopted, so that it is beneficial for control of smoke introduction speed.

The invention discloses a large-liquid-amount constant-pressure displacement indoor physical simulation experiment method. The method sequentially includes the following steps that a large-liquid-amount constant-pressure displacement indoor physical simulation experiment device is installed and detected; water is added into a water container I, and dissolved gas is removed; water is added into a water container II, and dissolved gas is removed; oil saturation is performed on a rock core; oil displacement by water is performed on the rock core; oil and liquid obtained through displacement are counted. The experiment device comprises an automatic water adding device I, an automatic water adding device II, an oil adding device, an impurity removing device I, an impurity removing device II, a pressure collecting device, an oil and water counting device and a rock core clamping device. The automatic water adding devices comprise vacuum pumps, and water adding control buttons and displacement control buttons are further arranged. The experiment method is high in automation degree and operability, integrates multiple functions, can achieve water feeding automatically, meets the using requirement for large-liquid-amount displacement, can effectively remove impurities in the water and oil and meanwhile removes the dissolved gas in the water.

The invention discloses a lobster cultivation method based on rice fields and lotus roots. The method includes selecting and turning over a planting field, opening a ring groove to place lobster seedlings, preserving heat of the lobster, capturing the lobster seedlings, selecting and planting lotus roots, fertilizing the lotus root field, feeding the lobster seedlings, fertilizing the lotus root field, capturing the lobster, and adding a cultivation platform on a slope in the ring groove excavation process; building the cultivation platform from soil; applying an organic compound fertilizer tothe lotus root field in the fertilization step of the lotus root field; fertilizing an acre of lotus root field with 30-50kg of fertilizers; and forming the organic compound fertilizer by mixing more than two substances of fermented excrement, cake fertilizer, phosphate fertilizer and potash fertilizer. The method provides a lotus root-based lobster cultivation method, aiming at improving the existing method process of lotus root crayfish co-cultivation, and simultaneously improving the bait of the existing lobster. The method improves the lobster yield and the lotus seed yield, reduces theincrease of labor cost and improves economic benefits.

The invention discloses a hanging device for mussel breeding and an application method thereof and belongs to the field of mussel breeding equipment. The hanging device for mussel breeding comprises abuoy provided with a plurality of avoiding slots at the side wall, and the avoiding slots are arranged around the buoy; first rods arranged vertically are disposed in the avoiding slots respectively;every two fixing rods arranged transversely are fixedly connected to the upper side wall of each first rod, and are respectively disposed on two sides of the first rod; positioning rods arranged vertically are respectively fixedly connected to the lower side walls of one ends, away from the corresponding first rod, of the two fixing rods; the upper surface of the buoy is provided with positioningholes matched with the positioning rods; the first rods are in hollow structure. By application of the hanging device, picking of single mussel can be realized without any influence to other mussels;as the breeding depth of mussel can be regulated according to breeding environment, the hanging device is easy and convenient to operate and is labor saving and time saving.