71results about How to "Long suspension time" patented technology

The present invention consists of the particular geometry of the reflectors or dispersers which constitute the anti-radar chaff cloud. Instead of using conventional rectilinear forms, in the present invention multilevel and space-filling forms are introduced. Due to this geometric design, the properties of the radar chaff clouds improve mainly in two aspects: radar cross-section (RCS) and mean time of suspension.

The invention relates to the technical fields of an odor treatment device and a method thereof, in particular to a deodorization device for purifying odor in stacking bins before domestic garbage is burnt and malodorous gas containing organic sulfur and organic amine in chemical plants and a method thereof. The tower body of the deodorization device is positioned above a circulating liquid box; an inner cylinder is arranged at the lower part of the tower body; the bottom of the inner cylinder is communicated with the circulating liquid box; a first spraying device is arranged in a cavity body between the inner cylinder and the tower body; a bubbling pipe is arranged in the circulating liquid box; the upper end of the bubbling pipe is introduced into the cavity body between the inner cylinder and the tower body; a gas inlet is formed on the tower body the part of which is provided with the inner cylinder; a gas outlet is formed at the top end of the tower body; and a second spraying device is arranged in the tower body. In the deodorization method, odor is respectively subjected to chemical reaction with the atomized potassium permanganate sprayed by the first spraying device and the second spraying device and the potassium permanganate solution in the circulating liquid box. The invention solves the technical problems of low treatment efficiency, large equipment, difficult post treatment and high equipment operating cost of the traditional deodorization method.

The invention provides fish baits special for luring fish and placing baits to fishing points. The fish baits special for luring fish and placing baits to the fishing points comprise pre-made extrusion particles, puffing particles, broken particles, and auxiliary materials. Through machining processes of extruding, puffing, breaking, and the like, materials are cured, the effect of luring fish is improved, and meanwhile proportions and properties of the materials are changed, and the defects that a traditional self-made fish bait or single grain homing is easy to sink, unscented, bad in stability, and the like are perfectly overcome.

The invention relates to a jet-based micro-bubble generation method and a jet micro-bubble aerator. The aerator comprises a water inlet pipe, an air inlet pipe, an air suction chamber, a throat pipe section, and a diffusion pipe section, wherein a nozzle is connected to the water inlet pipe, the nozzle extends into the air suction chamber, and the air inlet pipe is also connected to the air suction chamber; the air suction chamber is a closed chamber, which comprises an outlet, the outlet is connected to the throat pipe section, the throat pipe section is connected to the diffusion pipe section, and ultimately, the diffusion pipe section extends into an external aeration device. Because the shear rate of a flow field at the position of the nozzle and / or in the throat pipe section is greater than the critical shear rate of big bubble breaking when the aerator is used, the geometrical shape of the jet micro-bubble aerator can be determined. The micro-bubble aerator has the advantages ofsimple structure, low cost, no blockage and convenience in repair; by the jet micro-bubble generation method, a large quantity of tiny bubbles can be continuously generated, the oxygen utilization rate is increased, and the energy consumption and cost of water treatment are reduced.

Into Bordeaux mixture, effective nutritive components and other nutritive assistant are added to compound wettable powder of nutritive Bordeaux mixture. Suspension, thickener and other components are added to make the Bordeaux mixture dispersed in water fast to form stable suspension. Compared with traditional Bordeaux mixture, the present invention has homogeneous spraying and no blocking of the nozzle, and the atomized drop after drying can attach to leaf for long time to resistance rain flushing. The new type of germicide has less consumption and raised economic and environmental utility.

The invention discloses a peach juice beverage and a preparation method thereof and belongs to the technical field of food processing. Each 1,000 parts of the beverage comprises following raw materials in parts by weight: 60-75 parts of peach pulp, 73-105 parts of a sweetening agent, 2-4.5 parts of a sour agent, 0.3-0.7 part of an antioxidant, 1-1.6 parts of a stabilizing agent, 0.4-0.6 part of peach essence and of the balance being water, wherein the stabilizing agent is composed of sodium carboxymethylcellulose, xanthan gum and sodium alginate with the mass ratio of (2-4):(2-4):(1-2). The peach juice beverage is reasonable in compatibility; the stability is good in a storage rack period and the mouth feel is good; the peach juice beverage is easy to produce. The stabilizing agent is compounded by the sodium carboxymethylcellulose, the xanthan gum and the sodium alginate so that the system viscosity can be increased and the thickening and emulsification effects are exerted; large grains are prevented from being collected and depositing so that sedimentation and layering phenomena are effectively prevented; compared with independently-adopted components, the peach juice beverage has the advantages that the sedimentation rate is low and the stabilizing efficiency is high; the texture is uniform; the peach juice beverage does not have the sedimentation and layering phenomena after being stored at a room temperature for one month.

The invention discloses a layered fish feeding structure and aims to overcome the shortcomings of inconvenient layered fish feeding bait putting and poor feeding effect. The layered fish feeding structure comprises a feeding tank and a mounting rack installed at the upper end of the feeding tank, wherein a rotary shaft driven by a driving motor to rotate is mounted on the mounting rack, a plurality of installing rods are evenly distributed and connected to the lower end of the rotary shaft, water pumps and installing pipes are installed on the installing rods, the water inlet ends of the waterpumps are communicated to the feeding tank, the water outlet ends of the water pumps are communicated with the installing pipes, a plurality of bait boxes arranged in different water layers of the feeding tank sleeve the installing pipes from top to bottom at intervals, a plurality of discharging holes are formed in the side walls of the bait boxes, a plurality of vertically arranged blades are evenly distributed on the side walls of the bait boxes, a plurality of evenly distributed water outlet pipes are communicated to the positions, close to the bait boxes, on the installing pipes, and theends of the water outlet pipes face the blades clockwise or anticlockwise.

A hydrocyclone unit for separating a fibre pulp suspension containing relatively heavy contaminants has an elongate tapering separation chamber, an inlet member that feeds the suspension tangentially into the separation chamber at a base end, so as to form a vortex in the separation chamber, a reject fraction outlet at the apex end of the separation chamber for discharging a reject fraction containing heavy contaminants, and a central accept fraction outlet at the base end for discharging a central fraction containing fibres. A fluid injection member is adapted to inject a fluid tangentially into the separation chamber at a distance from the apex end which is at least 40% of the length of the separation chamber, such that the injected fluid increases the rotational speed of a portion of the vortex in the chamber to increase the separation efficiency with respect to fibres existing in the vortex portion.

The invention provides a preparation method of magnetic micro-beads for extracting nucleic acid and relates to the preparation method of the magnetic micro-beads, aiming at solving the problems of existing biological magnetic beads that the grain diameter is large, the surface energy is small and the adsorption efficiency of the nucleic acid is low. The method 1 comprises the following steps: 1, preparing Fe3O4 / SiO2 magnetic micro-beads; 2, washing the magnetic micro-beads; 3, preparing magnetic micro-beads bonded with epoxy groups on the surfaces; 4, preparing magnetic micro-beads bonded with glycol groups on the surfaces. The method 2 comprises the following steps: 1, preparing the Fe3O4 / SiO2 magnetic micro-beads; 2, washing the magnetic micro-beads; 3, preparing the magnetic micro-beads bonded with the epoxy groups on the surfaces; 4, preparing magnetic micro-beads coated with iminodiacetic acid on the surfaces. The grain diameter of the magnetic beads prepared by the method provided by the invention is small and is nano-grade; the surface energy of the magnetic beads is improved and suspension time of the magnetic beads in an extracting solution is prolonged; the magnetic beads can be in more efficient contact with target extract, and the extracting efficiency of the target extract is improved. The preparation method is used for preparing the magnetic micro-beads for extracting the nucleic acid.

The present invention discloses a fluorescent oil-base magnetic suspension for magnetic particle inspection. The fluorescent oil-base magnetic suspension is characterized by comprising solvents and co-solvents, wherein the solvents are a solvent oil C7 and a machine oil 10, the co-solvents are an emulsifier TX-4, an anti-foaming agent and oily fluorescent magnetic particles, and the fluorescent oil-base magnetic suspension comprises, by weight, 55-70 parts of the solvent oil C7, 20-40 parts of the machine oil 10, 3-6 parts of the emulsifier TX-4, 1.8-4 parts of the anti-foaming agent, and 0.15-0.25 parts of the oily fluorescent magnetic particles. The fluorescent oil-base magnetic suspension for magnetic particle inspection in the present invention provides good suspension property in a carrier fluid, such that the workpiece after the inspection does not present corrosion phenomenon. In addition, the fluorescent oil-base magnetic suspension of the present invention has characteristics of good fluidity, good dispersion, long suspension time, and high magnetic particle indication sensitivity.

The invention provides a preparation method of a self-suspension propping agent. The preparation method comprises the following steps: mixing a pre-heated propping agent matrix and a polymer capable of being swollen with water; in a stirring process, spraying a silane coupling agent solution into a mixture; and reacting for 3h to 4h at a temperature of 60 DEG C to 80 DEG C to obtain the self-suspension propping agent. According to the preparation method of the self-suspension propping agent, the silane coupling agent and the polymer capable of being swollen with the water are used for coating the propping agent matrix so that a cross-linking agent is realized; the silane coupling agent is connected with the propping agent matrix by adopting a siloxane chemical bond and is also subjected to a chemical reaction with the polymer to form a chemical bond; the self-suspension propping agent provided by the invention has a good anti-shearing capability and a great buoyant force; the self-suspension propping agent has long suspension time in clean water; a toxic organic solvent does not need to be added and a gel breaking performance is good; and gel breaking liquid has a relatively good anti-swelling performance and a strong crack backward flowing capability.

The invention discloses an immunity device for large-scale cattle breeding. The immunity device comprises an immunity chamber, a conveyer belt, a speed measuring radar, a controller and an aerosol immunity device, wherein fans are arranged on the inner walls on two sides of the immunity chamber; the blowing directions of the fans are oblique and upward; the fans, a speed change motor and the speedmeasuring radar are separately and electrically connected with the controller; the aerosol immunity device comprises an oil-free muting air compressor, an air cylinder, an air pressure balancing machine, an air pressure control assembly, a main air pipe, a plurality of quick tees and a plurality of spray nozzles; the oil-free muting air compressor is connected with the air pressure control assembly; the air pressure control assembly, the air pressure balancing machine and the quick tees are connected by the main air pipe; each quick tee is connected with the corresponding spray nozzle througha corresponding branch air pipe; the oil-free muting air compressor, the air cylinder, the air pressure control assembly and the air pressure balancing machine are mounted on the outer side wall of the immunity chamber; and the branch air pipes and the spray nozzles are mounted at the inner top of the immunity chamber. The invention discloses the immunity device for large-scale cattle breeding which is low in cost, easy to manufacture and high in practicality.

The invention discloses a preparation method of a honeysuckle disinfectant, comprising: step 1, taking honeysuckle, freeze-drying, putting it in a liquor steam environment for 10-15 minutes, repeating freeze-drying and liquor vapor environment for 3-5 times, and The obtained honeysuckle is extracted with water for 2 to 3 times, the filtrates are combined to obtain the first extract, the filter residue is soaked in ethanol solution, the soaking process is irradiated with microwaves, and filtered to obtain the second extract, and the first extract is combined with the second extract The liquid is mixed, heated and concentrated to obtain the honeysuckle extract; step 2, the essential oil mixture is obtained; step 3, the solid powder is obtained; step 4, methyl cellulose is added to the honeysuckle extract, fully stirred until completely dissolved, and then the essential oil is added Stir the mixture and solid powder until the solid powder is suspended to obtain a suspension and obtain a honeysuckle disinfectant. The invention mainly uses honeysuckle extract as a raw material, has a suitable smell and is non-irritating, has no damage to the skin, and is suitable for many people.

The invention discloses a digestion method and a digestion device for quickly digesting carbon monoxide, and belongs to the technical field of toxic gas purification. The method comprises the following steps: spraying solid catalyst powder into a carbon monoxide enrichment space so as to oxidize carbon monoxide into carbon dioxide and realize rapid digestion of carbon monoxide by utilizing the mechanical motion or Brownian motion of the catalyst powder and the principle of catalytically oxidizing carbon monoxide by using a catalyst. The device comprises a catalyst powder storage tank, a spraying device, a pressure release valve, a vacuumizing / inflating port and a siphon. The upper end of the catalyst powder storage tank is a tank opening; a material spraying device is arranged on the tankopening; the siphon is positioned in a tank body of the catalyst powder storage tank; the upper end of the siphon is connected with the spraying device, and the lower end extends to the bottom of thecatalyst powder storage tank; and the upper part of the tank body of the catalyst powder storage tank is connected with a pressure release valve and a vacuumizing / inflating port. The method and the device have the advantages of being high in carbon monoxide digestion speed, low in cost and suitable for fire and explosion sites, thereby preventing carbon monoxide from hurting people in distress.

The invention discloses a surfactant bubble dust removal device and a dust removal method. The surfactant bubble dust removal device comprises a shell, a bubble generation assembly, a filtering plate,a water baffle plate, a liquid storage box, a pressure fan, a water pump and a fan, wherein the shell is of a cylindrical structure with two opened ends; the bubble generation assembly, the filteringplate, the water baffle plate and the fan are arranged in the shell; the bubble generation assembly comprises a plurality of bubble spray heads, an air inlet pipe and a water inlet pipe; the air inlet of each bubble spray head is arranged on the air inlet pipe; the water inlet of each bubble spray head is arranged on the water inlet pipe; the air inlet pipe is connected with the air outlet of thepressure fan; the water inlet pipe is connected with the outlet of the water pump; the inlet of the water pump communicates with the liquid storage box; and the filtering plate is arranged between the bubble spray heads and the water baffle plate. The surfactant bubble dust removal device provided by the invention has the advantages of low water consumption, convenience in movement, simple structure, high dust removal efficiency and the like.

The invention relates to a device for making EPS extruded boards, in particular to a polystyrene pre-curing system comprising a stock bin vibrating and screening device, a stirring tank, an automatic sprinkling device and a pre-curing bin. The bottom of a vibration rack of the stock bin vibrating and screening device is connected with an eccentric wheel; a screening frame comprises a conical screening net and an annular material receiving groove; the bottom face of the stirring tank is of a slope surface structure; a lifting auger is arranged on the middle portion in the tank; an arc-shaped discharging face is arranged on the top of the lifting auger; the automatic sprinkling device is arranged in the stirring tank; a protective screen is arranged on a discharging port of the stirring tank; the pre-curing bin comprises a buffering bin and a feeding bin; the buffering bin comprises a bottom plate, a protective screen and an observation window; the bottom plate of the buffering bin is provided with a breathable groove; and a gas dispersing cavity is formed below the bottom plate. By means of the device, impurity materials can be conveniently removed, the suspension time of polystyrene particles in the tank is prolonged, mixing is more uniform, flying of materials is effectively prevented, and expansion stress is buffered.

The invention provides a preparation method of a silicon dioxide filled polytetrafluoroethylene dispersion solution. Dispersion mixing is carried out on a packing and polytetrafluoroethylene in a liquid medium, mixing time and operation difficulty are far below traditional solid powder mixing time and operation difficulty, and the preparation method can be used for an impregnation technology; through the dispersion solution, the interface bonding force of the packing and polytetrafluoroethylene is improved, and the surface defects in the impregnation process are improved; the preparation method is extremely applicable for impregnated glass cloth, and is used for producing a high-performance polytetrafluoroethylene copper-clad plate; the disadvantage that an existing copper-clad plate is large in coefficient of thermal expansion, low in abrasive resistance and low in mechanical strength is solved effectively, the sedimentation problem of the inorganic packing is improved, the uniformityof glue components is improved obviously, according to the method, particles of the packing are repelled mutually through space steric hindrance and charge repulsion effect, the suspension time of the particles is prolonged, and the uniformity of dispersion is guaranteed.

A mine under-shaft automatic explosive-suspension device triggered in two directions comprises receiving rod hanging devices, impact wave receiving devices, motion triggering components, transferring rod assemblies, outer-layer sleeve assemblies, air spraying pipe assemblies, middle sleeve assemblies, an outer cover assembly, a pressing sieve assembly, a pressure gauge component and pressure gauge protective cover, a valve needle and inflation cover assembly and a main body hanging device, the rest of the parts except the first two parts form the main body part, the number of each of the first seven parts is two, and the first seven parts are in bilateral symmetry regarding the axial vertical central line of the main body part as the center. The air spraying pipe assemblies are assembled inside axial center holes of the middle sleeve assemblies, are in sliding fit, are located in the center of the main body part, and are in bilateral symmetry regarding the axial vertical central line of the main body part as the center. The motion triggering components adopt safety gaskets. The mine under-shaft automatic explosive-suspension device triggered in the two directions is installed in an mine under-shaft tunnel with gas and coal duct explosion dangers, automatically suppressing an explosion in a bi-direction-triggered and spraying mode when the explosion occurs, and prevents the explosion from expanding and causing a secondary explosion, one set of the automatic explosive-suspension device replaces an original front set and an original reverse set, the cost of equipment is reduced, and installation and coal dust filling are convenient.

The invention belongs to the technical field of development of horizontal wells, and particularly relates to a preparation method of a horizontal well plugging agent. The preparation method comprisesthe steps: modifying montmorillonite so as to expand interlayer spacings, then distributing urea-formaldehyde resin among layers of the modified montmorillonite, adding a complexing agent finally, andperforming curing so as to obtain the horizontal well plugging agent. The horizontal well plugging agent has a dense structure, high strength and few pores, the permeability of the plugging agent ispoor, and a better plugging effect is achieved; and meanwhile, the plugging agent has good water resistance and oil resistance, a wellbore of a horizontal well can be plugged by the plugging agent, and a long period of validity is achieved.

The invention relates to a photobioreactor for microalgae culture. The photobioreactor for microalgae culture comprises a culture pond, an aerating unit, a water circulating pump, a photoreaction unit and a photosensitive switch, wherein the photoreaction unit comprises photoreaction tubes, a lower positioning tube, an upper suspending tube, an electric control valve and a density monitor. The preparation materials of the photoreaction tubes are polytetrafluoroethylene, the photoreaction tubes are connected to an S shape through sleeve joints, the photoreaction tubes are vertically fixed above the culture pond through the lower positioning tube and the upper suspending tube, the water inlet of the photoreaction unit is connected to the water outlet of the water circulating pump through a water outlet pipe, the electric control valve is arranged on the drain outlet of the photoreaction unit at the tail end of the photoreaction unit, the density monitor is arranged on the photoreaction tube at the first end of the photoreaction unit for monitoring the microalgae density in the photoreaction tubes and controlling the electric control valve to be turned on or off; and the photosensitive switch starts or stops the aerating pump and the density monitor according to induction intensity. The photobioreactor provided by the invention has the advantages that algae cells do not adhere to walls, the light energy utilization ratio is high, the energy consumption is relatively low and etc.

The invention provides an ultrasonic-assisted cavitation abrasive grain flow finishing method for titanium alloy surface oxide layers. The method comprises the following steps: stirring a solid-liquidtwo-phase mixed fluid to form high-speed turbulence vortex; extracting the solid-liquid two-phase mixed fluid, mixing the solid-liquid two-phase mixed fluid with micro-nano bubbles to form a high-speed and high-pressure gas-liquid-solid three-phase abrasive grain flow; spraying the high-speed and high-pressure gas-liquid-solid three-phase abrasive grain flow to a workpiece in a tank body for staged surface treatment; meanwhile, emitting ultrasonic waves by an ultrasonic device configured below the workpiece to form an ultrasonic cavitation effect, and forming a negative fluctuation environment with positive and negative pressure alternating rapidly in the high-speed fluid in the tank body to cause expansion and compression of micro-nano bubbles in the high-speed fluid. Under the comprehensive action of turbulence, jet, cavitaiton and ultrasonic waves, a manner of combining cavitation abrasive grain jet and turbulence integrated surrounding type processing and ultrasonic enhancement isadopted, synchronous stripping of different in-situ defects of oxide scale and derivative and chain stripping of new defect points can be realized, the removal efficiency is high, and the processinguniformity is good.

An aerodynamics-based rice husk roller rubbing cleaning device comprises a machine frame, a feed hopper, a rice husk threshing mechanism, a separating mechanism and a grain conveying mechanism, wherein the rice husk threshing mechanism comprises a belt, a pedestal, a roller, an upper belt roll and a lower belt roll; the belt is wound on the upper belt roll and the lower belt roll to form a closed loop; the roller is pressed against the outer part of the belt, so that a rice husk threshing passage is formed between the outer wall of the roller and the belt; a discharge port of the feed hopper is positioned right above the threshing passage; the separating mechanism comprises a cleaning chamber and cylindrical sieves; a grain collecting hopper is arranged below the cylindrical sieves; an inclined jointing plate is arranged on the lower part of the pedestal; the upper end of the inclined jointing plate is jointed with the outer circumferential surface of the lower belt roll; the lower end of the inclined jointing plate is jointed with the outer circumferential surface of one of the cylindrical sieves; a centrifugal fan is arranged at one end of the cleaning chamber; a cross-flow fan is arranged on the upper part of the cleaning chamber. The aerodynamics-based rice husk roller rubbing cleaning device rubs threshed rice through the rice husk threshing mechanism to separate residual rice husks first and then cleans grains through the cleaning chamber, so that the aerodynamics-based rice husk roller rubbing cleaning device has the advantages of high cleanness and high cleaning efficiency.

The invention discloses a smoke pesticide spraying machine which comprises a feeding port, a pesticide mixing chamber, a stirring device, a smoke outlet, an oil tank and a back plate. The lower end of the feeding port is connected with the pesticide mixing chamber, the stirring device is installed in the pesticide mixing chamber, the lower end of the stirring device is connected with a vapor-liquid atomizing chamber through a water outlet conduit, an eddy bin is installed in the vapor-liquid atomizing chamber, an air compressor is installed at the right end of the eddy bin, the right end of the air compressor is provided with an air inlet, a control switch is installed on the lower portion of the air inlet, a smoke outlet is arranged at the tail end of the left side of a smoke conduit, the oil tank is installed on the lower portion of the eddy bin, and the back plate is installed on the right side of the oil tank. According to the smoke pesticide spraying machine, air and pesticide solution are mixed and compressed into smoke by utilizing the air compressor, suspension time of the pesticide in air is increased, the pesticide gives full play to its pesticide property to kill pests, so that the pest-killing efficiency of the pesticide is improved, and the pesticide waste rate is reduced.

The invention discloses a granite tailing mica separation device. The granite tailing mica separation device comprises a shell, a micro-nano bubble generator and a telescopic plate. A water inlet and a water outlet are separately formed in two opposite sides of the shell. A feeding hole and a sand outlet are separately formed in the upper end and the lower end of the shell. The feeding hole is positioned on the water outlet side of the water inlet, and the sand outlet is positioned on the water inlet side of the water outlet. A bubble nozzle of the micro-nano bubble generator is arranged at the water inlet. One end of the telescopic plate is connected to the junction of the water outlet and the sand outlet, the other end of the telescopic plate extends to the sand outlet, and the separation position of mica is adjusted by changing the length of the telescopic plate; and an existing separation method is improved, according to the granite tailing mica separation device, the characteristics of lamellar structure and low density of the mica are utilized, micronano bubbles are adopted to enable mica sheets to suspend in water for a long time, so that the content of the mica in tailing fine sand is effectively reduced, and favorable conditions are created for subsequent processing and utilization.

The invention discloses an expansion material composition, comprising polyvinyl alcohol and a natural macromolecular material, wherein the mass ratio of the polyvinyl alcohol to the natural macromolecular material is (10-600):1; in addition, a self-suspending proppant prepared with the expansion material composition and a preparation method and application of the self-suspending proppant are disclosed. The self-suspending proppant prepared with the expansion material composition has no need for fracturing with a fracturing liquid that has added organic macromolecules and high cost, but uses easily-accessible natural water to carry out fracturing, and therefore, contamination is relieved and the cost is lowered; the self-suspending proppant prepared with the expansion material composition may suspend after being mixed with water, can suspend for a long time and has good flow guidance, sand blocking chances during fissure filling can be effectively reduced, the conveying range is wider, and oil / gas production is higher.

The invention relates to a preparation method of a cerium dioxide polishing powder liquid. The preparation method comprises the steps: adding cerium dioxide powder into a mixed solution of a silane coupling agent compound and an organic solution, wherein the silane coupling agent compound contains alkoxyl at one end and a polar functional group at the other end, and an organic solvent in the organic solution is an alcohol; and dehydrating and drying the mixed solution to obtain polishing powder and then dissolving the polishing powder in an aqueous solution to obtain the polishing liquid. The cerium dioxide powder generated by the method provided by the invention can be stably and uniformly dispersed in the aqueous solution, is relatively long in suspending time, is unlikely to generate precipitates, can be applied to manufacturing various cerium dioxide related polishing powder slurry and liquid slurry, and has certain industrial application value.

The invention discloses a lobster bait. The lobster bait is prepared from the following raw materials in parts by weight:10-20 parts of wheat protein powder, 1-10 parts of oat, 10-30 parts of fish meal, 2-10 parts of rape seed cakes, 1-7 parts of plumule rice, 2-8 parts of shrimp powder, 1-8 parts of peanut powder, 5-15 parts of vegetable leaves, 2-12 parts of middling, 12-19 parts of corn flour, 5-12 parts of earthworms, 2-10 parts of wheat bran, 2-12 parts of coarse rice powder, 5-15 parts of cuttlefish visceral meal, 1-2 parts of zinc chloride, 1-2 parts of potassium chloride, 1-2 parts of beer yeast, 1-2 parts of betaine, 5-10 parts of royal jelly, 1-5 parts of cyclodextrin, and 1-7 parts of microcrystalline cellulose. The invention further discloses a preparation method of the lobster bait. The lobster bait disclosed by the invention not only can stimulate sense of smell of lobsters, but also is long in suspension time in water bodies, long in activity time, simple in preparation method and convenient to store.

The invention discloses a spraying device. The spraying device comprises a first storage tank (1) for storing a disinfectant, a second storage tank (2) for storing a synergist, a first atomizer (3) for atomizing the disinfectant, and a second atomizer (4) for atomizing the synergist, wherein a first pumping mechanism (5) is arranged between the first storage tank (1) and the first atomizer (3); a second pumping mechanism (6) is arranged between the second storage tank (2) and the second atomizer (4); and the first atomizer (3) is positioned above the second atomizer (4). According to the spraying device provided by the invention, synergist aerial fog output by the second atomizer is positioned below disinfectant aerial fog output by the first atomizer during spraying, so that the suspension time of the disinfectant aerial fog mixed with the synergist is prolonged by utilizing the long-time suspension effect of the synergist, the sedimentation of the disinfectant aerial fog is slowed down, the disinfection effect is improved, and the duration time is prolonged.