204results about How to "Improve spray distance" patented technology

The invention relates to a mobile multi-stage hydraulic-drive pneumatic spray dust-settling truck, mainly solving technical problems of high investment caused by individual use of spray dust-settling devices and poor effect caused by common use of the spray dust-settling devices due to far distance on conditions of multiple and dispersed dust source points, variable dust source locations and complicated conditions of dust sources. The technical scheme includes that a water storage tank is connected with a high-pressure water pump through a water pipe and high-pressure water is pumped to a spraying assembly; a hydraulic station is connected to a hydraulic motor of a mist spraying device through a high-pressure oil pipe to drive an impeller of axle-flow fans to generate high-pressure air flows, the high-pressure air flows send mist to a dust working face, and high-pressure oil of a hydraulic station is connected to a hydraulic cylinder; the mist spraying device is lifted and then is driven to oscillate around a rotating bearing by a motor and a reduction gearbox via a rotational driving gear; a carriage engine drives a power generator through a double-output transmission in a gear shifting manner so that power required for system running is obtained. The mobile multi-stage hydraulic-drive pneumatic spray dust-settling truck is mainly used for far-distance large-range dust settling and removing and firefighting in fugitive emission fields such as tunnel heading, blast mining, loading, crushing and unloading.

The invention discloses a double-action plunger-type deicing liquid pump for airplane deicing liquid operation. Two plunger pump cylinders in the same structure are connected into an integral body by a crank connecting link through a piston, the plunger pump cylinders are divided into two regions, and each region is provided with a non-return valve; one power source is used for driving the two plunger pumps to work simultaneously; a liquid feed channel is connected with a liquid feed non-return valve on each plunger pump cylinder; a liquid discharge channel is connected with a liquid discharge non-return valve on each plunger pump cylinder, and the outlet of the liquid discharge channel is provided with an injection gun; and the plunger pump cylinders, liquid feed channels and liquid discharge channels are made of stainless steel. Compared with single-action pumps with the same flow rate, the double integrated pumps can raise the pressure of the injected fluid and increase the injection distance. Compared with centrifugal pumps, the frictional heat of the invention generated in the working process is very low so as not to influence the viscosity of the deicing liquid, and the invention can well maintain the characteristics of the deicing liquid. The invention is mainly used as a special pump for airplane deicing liquid for deicing and anti-icing operations.

The invention relates to a far range air supply type mist spray purification device. The device comprises a machine seat and a main control platform, wherein an air supply device and a mist spray device are arranged on the machine seat; the air supply device is provided with a base; a rotating vertical column is arranged in the center of the base; a supporting plate is fixed at the upper end of the rotating vertical column; the lower end of the rotating vertical column is in power connection with a driving mechanism; an air cylinder is fixed on the supporting plate; a pressure diffusion throat pipe is arranged on the inner side of an air outlet of the air cylinder; the tail end of the air outlet of the air cylinder is connected with a backflow cover; a high-pressure axial flow fan is arranged in the center of the air cylinder; the mist spray device comprises an annular distribution pipe, a radial plunger pump, a motor and a water tank; an atomizing nozzle is arranged on the annular distribution pipe; a liquid absorption opening of the radial plunger pump is communicated with a water supply opening of the water tank through a liquid inflow pipeline; and a liquid outlet of the radial plunger pump is communicated with the annular distribution pipe through a liquid outflow pipeline. The device has a far mist spray range and low energy consumption, particularly can control the sizes of atomized fog drops effectively and has good dust removing and temperature reducing effects.

The invention relates to the technical field of pesticide spraying devices, in particular to a multi-mode bidirectional pesticide spraying device. The multi-mode bidirectional pesticide spraying device comprises a pesticide spraying mechanism, a vertical adjusting mechanism for adjusting the pesticide spraying mechanism to move vertically, a horizontal adjusting mechanism for adjusting the vertical adjusting mechanism to move towards the left and the right and a mode switching mechanism for adjusting an angle of the pesticide spraying mechanism, wherein the pesticide spraying mechanism is connected with the vertical adjusting mechanism through the mode switching mechanism, and the lower end of the vertical adjusting mechanism is connected with the horizontal adjusting mechanism. The pesticide spraying mechanism, the vertical adjusting mechanism and the mode switching mechanism form two groups of pesticide spraying portions, and the two groups of pesticide spraying portions are symmetrically arranged on the horizontal adjusting mechanism. The multi-mode bidirectional pesticide spraying device can improve pesticide spraying efficiency, reduce the labor intensity of workers, can be aligned to a corresponding crown for pesticide spraying, reduces the influence of pesticides on land and the environment and is convenient to control and good in moving flexibility.

The invention discloses a parallel agricultural aerosol sprayer. The aerosol sprayer comprises a box body with an opening at the top extremity, a box lid is in threaded connection with the top opening of the box body, a hitch is arranged in revolving connection with the top extremity of the box lid, a liquid pump and an agitator motor are mounted on the side wall of the bottom end of the box body, the agitator motor is arranged on one side of the liquid pump, a fixed structure is arranged inside the box body, a pushrod motor and a booster pump are arranged fixedly on the fixed structure, a conduit is connected between the booster pump and the liquid pump, the booster pump is arranged on one side of the pushrod motor, four array lined universal pipes are arranged in revolving connection with the surrounding side walls of the box body, an atomizing nozzle is arranged on one end of the universal pipe, outlet pipes are arranged inside the universal pipes, the atomizing nozzle is arranged in connection with one end of the outlet pipe, and the booster pump is arranged in connection with the other end of the outlet pipe by the conduit. By the parallel agricultural aerosol sprayer, mixing is automatically conducted on the solution, and the solution is mixed uniformly, the adjustment of the range and angle of the nozzle sprinkling is conducted manually and electrically, the spraying of 360 degree at no dead end is manageable, and the distance of sprinkling is long.

The invention provides a multi-mode water mist fire extinguishing system which comprises a water pump machine set, a water transporting pipeline set formed by a high-pressure water band and a spray gun with various spraying modes, wherein a multi-mode water mist spray head set of the spray gun is sequentially provided with a three-way change-over valve, a rear spray head, a front spray head and a direct-flow foam spray pipe from back to front along the axial water charging direction. The total four spraying modes including the direct-flow foam spraying status and the waster mist spraying status can be realized, wherein the waster mist spraying status comprises an axial spraying mode, a radial spraying mode and an axial / radial spraying mode. The radiation heat can be greatly isolated, the smoke can be removed, the radiation thermal damage can be reduced, the smoke damage can be reduced, the fire extinguishing effect can be improved, and the risk can be reduced; and the spraying distance can not be influenced, so that the fire extinguishing efficiency and the safety can be greatly improved. A quick joint of the high-pressure water band of the system is compact in structure, small in volume, light in weight, high pressure-resistant, and interchangeable, so that the system is light, handy, flexible and convenient to use, clean and neat, thereby being suitable for the pipeline which needs to be usually disassembled and assembled in need particularly.

The invention discloses a front-end atomizing automatic-stretching spray gun of an SNCR (Selective Non-Catalytic Reduction) system. The front-end atomizing automatic-stretching spray gun comprises a spray pipe, a nozzle, an adjustment lead screw, a cylinder assembly, a pneumatic assembly, a compressed air source assembly and a base, wherein the cylinder assembly, the pneumatic assembly and the compressed air source assembly are connected, the cylinder assembly comprises a rodless cylinder; the spray pipe is fixed to a slipway of the rodless cylinder through the adjustment lead screw; and the movement of the slipway is controlled, so that the action that the spray pipe is put in a furnace chamber or stretches from the furnace chamber is realized. The front-end atomizing automatic-stretching spray gun of the SNCR system has the following beneficial effects that compressed air is used for replacing a centrifugal fan as an atomizing air source, and the structure of the spray gun is matched, so that the atomizing effect of a urea solution is increased, the spraying uniformity is improved, the spraying distance is enlarged, the denitration effect of the SNCR system is effectively guaranteed and improved, normal operation of a garbage incineration plant is guaranteed, and the disorderly closedown rate is reduced; the service life of the spray gun is prolonged; and the occurrence frequency of blocking of the nozzle is reduced.

An electric translation multi-functional jet-irrigating machine with a circular rotation cantilever is formed by a head span main control tower vehicle (21), trusses (20), a tower vehicle (15), the rotation cantilever (3), an electric cabinet (27), a main control panel (37), a rotation cantilever rotation angle control disc (4), a mid-span tower vehicle traveling control box (81) and a guiding control box (58). A fixing supporting device, the electric cabinet (27), the main control panel (37) and a traveling device are arranged on the main control tower vehicle. The main control tower vehicle and the trusses are installed together, the plurality of trusses (20) are supported by the tower vehicle (15) below the trusses, and the rotation cantilever (3) is connected with the tail end of the trusses. The electric cabinet, the main control panel, the mid-span tower vehicle traveling control box and the guiding control box form a control system of the jet-irrigating machine. Due to the rotation cantilever and the fixing supporting device, the machine can conduct circumferential irrigation to irrigate four corners of a field and can work in a translation mode. By means of the machine, irrigation of square plots, irregular plots and circular plots can be finished, irrigation rate is improved, and waste of land is avoided.

The invention discloses an elevating strong wind fire-extinguishing firefighting device which comprises a traveling device, a secondary frame, a turntable, a cantilever crane, as well as a pumping device, a pipeline system, one or more tanks for bearing fire extinguishing agents and a control system all arranged on the secondary frame, wherein the traveling device is provided with a power system for supplying power to outside; the secondary frame is arranged on the traveling device; the turntable is connected with the secondary frame through a rotating mechanism; one end of the cantilever crane is hinged to the turntable; a fire-extinguishing smoke discharge device is mounted at the top end of the cantilever crane; the fire-extinguishing smoke discharge device can rotate, pitch and lift along with the cantilever crane and the turntable. According to the device, smoke in the middle-high building fire scene can be discharged, the fire site visibility and fire-extinguishing agent jet distance and area can be improved, the environment temperature of the fire site can be reduced, a point-to-space submerged fire-extinguishing mode can be realized, the escape rate of trapped persons is increased, the personal safety of rescue workers is guaranteed, and the device has obvious practical value.

The invention discloses an efficient energy-saving marine pump which comprises a base. A first turbine shell and a second turbine shell are fixedly arranged above the base. The two sides of the firstturbine shell and the second turbine shell are provided with end covers correspondingly, through holes are formed in the middles of the end covers, impellers are arranged in the first turbine shell and the second turbine shell correspondingly, rotating shafts are arranged in the middles of the impellers, the rotating shafts of the impellers inside the first turbine shell and the second turbine shell are connected through an electromagnetic clutch, the rotating shaft of the impeller inside the second turbine shell is connected with an output shaft of a motor through a coupler, and the motor isfixedly installed to the base through a motor installation base. According to the efficient energy-saving marine pump, the water pumping speed is adjusted by adjusting the number of the working impellers, water drainage pressure is improved by adding an energy storage tank, remote ejection is achieved, and energy saving and high efficiency are achieved by adjusting the power of the motor.

The invention discloses an environmental-friendly spray head of a water spraying vehicle with a conveniently adjusted spraying angle. The spray head comprises a header pipe and side spray heads. The side spray heads are mounted at the upper and lower ends of the header pipe, a rotating rod is arranged in the middle of a water passage cabin, blades are uniformly welded to the outer side of the rotating rod, water inlets are uniformly formed in the outer side of the rotating rod, a rotary spray blade is welded to the bottom end of the rotating rod, impact cabins are uniformly formed in the edgein the rotary spray blade, liquid separating pipes are arranged at the top ends of the impact cabins, the ends, close to the rotating rod, of the liquid separating pipes communicate to the inner sideof the rotating rod, and three liquid separating nozzles are formed in one side of each impact cabin. According to the environmental-friendly spray head, orientation of a duckbilled spray head is changed conveniently by staff, so that the spray head is simple and convenient to operate. The time consumed by the staff to adjust the orientation of the duckbilled spray head is saved, and the environmental-friendly spray head is uniform to spray, easier to evaporate and cool and high in capacity of catching dust.

The invention discloses a multifunctional lifting and obstacle-removing type fire-fighting robot. The robot comprises a water-tank lorry body and an obstacle-removing device which is arranged at the front end of the water-tank lorry. The water-tank lorry body supports an air gun mechanism through an arm support mechanism, wherein the arm support mechanism comprises an arm support seat and arm supports, and the arm supports are connected to an arm support oil cylinder; the air gun mechanism comprises a gun barrel, the gun barrel is rotatably connected to the arm support seat, the middle part of the gun barrel is connected to an air gun oil cylinder, a rotary joint is arranged on the upper part of the gun barrel, a pressurizing pump is arranged in the water-tank lorry body, and the pressurizing pump is connected to the gun barrel through a connecting pipe; the obstacle-removing device comprises a body, a travelling mechanism, a bulldozing blade and a bulldozing oil cylinder. According to the robot disclosed by the invention, by arranging the obstacle-removing device, with the travelling device being a triangular caterpillar band device, at the front end of the water-tank lorry, the robot is relatively good in stability; the lifting and obstacle-removing effect generated by matched use of the bulldozing plate and the bulldozing oil cylinder is good, so that the fire-fighting robot can move forward on a complex pavement in a fire scene.

The invention discloses a disinfectant spraying device for municipal engineering, and relates to the technical field of municipal engineering machinery. The disinfectant spraying device for municipalengineering comprises a support frame, a water tank, and a water pump communicating with the water tank, wherein a drive motor is fixed onto the support frame; a horizontally arranged drive shaft is fixed to an output shaft of the drive motor; a main gear I and a main gear II meshing with an incomplete gear II sleeve on a driven shaft II; a driven gear is connected between the main gear I and an incomplete gear I in a meshing way; a liquid inlet pipe communicating with the water pump is arranged in a jacketed pipe; a spray head is arranged at the end part of the jacketed pipe; and a fan bladewith the same orientation as the spray head is fixedly arranged on a driven shaft I. According to the disinfectant spraying device for municipal engineering provided by the invention, through the drive of the drive motor, the clockwise and anticlockwise alternate swinging of a swinging shaft is realized, so that the spray head sprays a disinfectant in a swinging way; meanwhile, the fan blade blowsair leftwards so as to supply air for the disinfectant sprayed by the spray head, so that the spraying range and the distance of the disinfectant are greatly increased; and a spraying plate is used for downwards spraying in a rotating way, so that the ground is disinfected.

The invention discloses a method for manufacturing a soft elastic abrasive. The method comprises: adding a powdery filling medium into a molten fluid or a liquid soft elastic substrate, wherein the filling medium has a particle size of 50 [mu]m or below and a density of 3.5 g / cm<3> or above, and the soft elastic substrate has a Shore hardness of 60HA or below; uniformly mixing the filling medium with the soft elastic substrate under stirring, and preparing a granular soft carrier from the uniformly mixed mixture, wherein the soft carrier has a particle size of 0.05-5 mm and a density of 2.0 g / cm<3> or above; and adhering hard abrasive grains onto the surface of the soft carrier to form the soft elastic abrasive, wherein the size of the hard abrasive grains is in a range of 0.25-10 [mu]m. The invention also discloses a cutting tool and a treatment method for a mold. The soft elastic abrasive of the invention can simultaneous realize passivation and polishing of a surface to be treated;and the soft elastic abrasive of the invention is reduced in requirements on ejection during surface treatment.

The invention discloses a special dust suppression fan for a dust suppression vehicle. The special dust suppression fan comprises a rotating mechanism, an angle adjusting mechanism, an air blowing mechanism and a spraying mechanism, wherein the angle adjusting mechanism is arranged above the rotating mechanism. The special dust suppression fan has the beneficial effects that due to adoption of the rotating mechanism of the special dust suppression fan for the dust suppression vehicle, angles of the dust suppression fan can be adjusted in a horizontal direction, due to adoption of the angle adjusting mechanism, angles of the dust suppression fan can be adjusted in a vertical direction, and angles in both the horizontal direction and the vertical direction can be adjusted, so that the dust suppression level can be increased, and all-direction spraying can be implemented; and on the other hand, due to adoption of the air blowing mechanism of the special dust suppression fan for the dust suppression vehicle, water mist ejected from the spraying mechanism can be effectively driven to be ejected out, and due to adoption of an air collection cylinder and an air discharge cylinder in the air blowing mechanism, the air force can be effectively increased, so that the ejection distance of the special dust suppression fan can be increased, and the spraying effect is good.

The invention provides a smoke generator. The smoke generator comprises a gas turbine and a smoke generating system, wherein the gas turbine comprises a gas turbine main machine, and the gas turbine main machine provides combustion-gas flow with required temperature and flow rate for the smoke generating system. The smoke generating system comprises a first exhaust nozzle and a mist oil input system, wherein the first exhaust nozzle communicates with the gas turbine main machine in a fluid mode, and the first exhaust nozzle is provided with a first exhaust nozzle inlet arranged close to the gas turbine main machine and a first exhaust nozzle outlet arranged away from the gas turbine main machine. The mist oil input system is used for conveying mist oil into the first exhaust nozzle, so that the mist oil forms smog under the action of the combustion-gas flow provided by the gas turbine main machine, and the smog is ejected outwards through the first exhaust nozzle outlet. The inventionfurther provides an operation method of the smoke generator. The smoke generator and the operation method of the smoke generator have the advantages of high smoke generating efficiency, high exhaust gas stability, large smoke generating amount, compact structure, good working stability, flexible maneuvering and the like.

The invention discloses a variable-flow solid-liquid mixing engine, and belongs to the field of solid-liquid mixing engines. The variable-flow solid-liquid mixing engine comprises an oxidizing agent storage box, a thrust chamber, a control valve and an adjustable cavitation venturi tube, wherein the oxidizing agent storage box communicates with the thrust chamber through a pipeline and the adjustable cavitation venturi tube to input an oxidizing agent into the thrust chamber, the control valve installed on the pipeline controls on-off of the oxidizing agent, the adjustable cavitation venturi tube comprises a stepping motor, a fixed flange plate, a venturi tube pressing screw, a venturi tube inlet joint, an adjustable cavitation venturi tube shell, a cavitation venturi tube and a needle awl, the axial movement of the needle awl is controlled through the stepping motor, the gap between the needle awl and the throat diameter of the cavitation venturi tube is changed, and therefore, the flow of oxidizing agent supply is changed, and thrust adjustment is achieved. The adjustable cavitation venturi tube adopted by the variable-flow solid-liquid mixing engine can simply realize large-range flow regulation.

The invention discloses a fluidization coal mining large-range coal breaking device and a using method. The coal breaking device comprises a supporting stand column, a spraying distance control telescopic cylinder and a spray head assembly; the bottom end of a cylinder body of the spraying distance control telescopic cylinder is hinged and installed on a telescopic cylinder mounting base of the supporting stand column, and a cylinder body swing control mechanism is further arranged between the spraying distance control telescopic cylinder and the supporting stand column; and the spray head assembly comprises a spray head and a water conveying high-pressure hose, the spray head with the spraying direction arranged in the radial direction of the supporting stand column is installed at the telescopic end of the spraying distance control telescopic cylinder through a spray head swing mechanism, the top end of the water conveying high-pressure hose is in closed communication connection with a high-pressure conveying pipe, and the bottom end of the water conveying high-pressure hose is in closed communication connection with the spray head. According to the fluidization coal mining large-range coal breaking device, the effective spraying distance of the spray head can be effectively increased, the coal mining area range of a single drilling well for ground drilling coal mining can be greatly increased on the premise that the construction cost of ground drilling is not increased, the coal mining efficiency is improved, and the mining cost is reduced.

The invention relates to a plasma jet flow generation device. An air outlet end of an air pipe is in threaded connection with a discharge seat made of insulation material, a hollow cavity is inwards formed in a non-connection end of the discharge seat, a discharge pipe made of insulation material is arranged in the hollow cavity, an air inlet end is arranged at one end of the discharge pipe, a spraying end is arranged at the other end of the discharge pipe, the air inlet end of the discharge pipe communicates with the interior of the air pipe through an intermediate pipe made of insulation material, a branch pipe is arranged on the discharge seat and communicates with the hollow cavity in the discharge seat, the branch pipe is made of insulation material, a high-voltage electrode is arranged in the branch pipe, one end of the high-voltage electrode extends out of the branch pipe, and the other end of the high-voltage electrode extends into the discharge pipe. Compared with the prior art, the plasma jet flow generation device has the advantages of long spaying distance, large plasma density, high continuous discharge performance and the like.

The invention discloses a test tube cleaning device for chemical experiment, and belongs to the technical field of chemical experimental equipment. The test tube cleaning device comprises a test tube cleaning box body, an ultrasonic generator arranged at the bottom of the test tube cleaning box body, a test tube cleaning body moving guide rail fixed to the outer wall of the test tube box body, a test tube cleaning body upper fixed cover movably installed on the test tube cleaning body moving guide rail, and a test tube support telescopically installed on the test tube cleaning body upper fixed cover. The test tube cleaning device disclosed by the invention embodiment can be used for fixing and cleaning test tubes of different lengths, and the ultrasonic cleaning and liquid jet cleaning are combined; the cleaning effect and cleanliness of chemical test tubes are improved, and human bodies are prevented from being damaged by the chemical test tubes in the cleaning process; moreover, according to the test tube cleaning device disclosed by the invention embodiment, the jet pressure of jet holes in test tube fixing columns can be adjusted according to the diameters of the test tubes cleaned, and waste of cleaning solutions and energy is avoided; and the cleaning cost of the chemical test tubes is reduced.

The invention discloses a large-sized energy storage power battery stack fire extinguishing system and a fire extinguishing method thereof and belongs to the field of large-sized energy storage powerbattery stack fire extinguishing. The large-sized energy storage power battery stack fire extinguishing system comprises a battery stack fire monitoring alarm and control module, a water pump module,a thermosetting gel additive, a high boiling point halogenated hydrocarbon additive, an additive mixing module, a zone control module and a fire extinguishing nozzle; an output end of the additive mixing module is connected with an input end of the zone control module; and an input end of the fire extinguishing nozzle is connected with an output end of the zone control module. According to the large-sized energy storage power battery stack fire extinguishing system, an adopted high boiling point halogenated hydrocarbon gas fire extinguishing agent is clean and environmentally friendly and hasno harm to an atmospheric ozone layer. According to the large-sized energy storage power battery stack fire extinguishing system, as the thermosetting gel additive is dissolved in the water at the room temperature to form a thermosetting gel additive aqueous solution, and the thermosetting gel additive generates a gelatination phenomenon to cover and coat the surface of an inflamer in the form ofgels; and therefore, long-distance cooling is realized to inhibit battery chemical combustion reaction so as to stop secondary out-of-control of a battery.

The invention belongs to the technical field of park afforestation, and particularly relates to a water saving device for park afforestation. The device comprises a water inlet pipe, a connecting sleeve, a water outlet pipe and water sprinkling pipes, wherein the water outlet opening end of the water inlet pipe extends into the connecting sleeve, a clamping sheath is arranged at an outer ring in the connecting sleeve, of the water inlet pipe, the clamping sheath is connected to the lower end of the connecting sleeve through a No. 1 spring, the connecting sleeve can slide up and down at the outer ring of the water outlet pipe through the clamping sheath, and the water outlet pipe is arranged above the water outlet opening of the water inlet pipe; the lower end of the water outlet pipe extends into the connecting sleeve, the water outlet pipe is connected to a U-shaped clamping groove in the upper end of the connecting sleeve through a bearing, and a plurality of water sprinkling pipes are uniformly arranged at the upper end of the water outlet pipe; and each water sprinkling pipe adopts an L shape, one end of each water sprinkling pipe communicates with the inner part of the water outlet pipe, and the other end of each water sprinkling pipe is connected with a spray head for atomizing and spraying water. Through cooperation between the water inlet pipe, the clamping sheath, theNo. 1 spring and the connecting sleeve, upward movement of the connecting sleeve along the water inlet pipe can be realized.

The invention discloses a mine mining spray fan, the structure of which comprises casters, a base, a water tank, a water inlet, a fan, a hydraulic rod, a support rod, a casing, a spray pipe, an electrical box, a pipeline, a steering wheel, a booster pump, a rotary platform, casters are set on both sides of the base, the upper end of the base is welded to the water tank, the upper end of the water tank is provided with a water inlet, the fan is connected to the housing by bolts, the upper end of the housing is provided with a hydraulic rod, the support rod is connected to the housing by bolts, and the housing A spray pipe is arranged on the left side, the electrical box is welded to the surface of the shell, the lower end of the spray pipe is connected with the pipeline, and the steering wheel is arranged at the front end of the base. The beneficial effects of the present invention are that a spray pipe with a spray effect is arranged on the structure, and a booster pump capable of increasing the spraying distance is provided, so that the spraying distance can be increased during mining, the amount of dust can be fully reduced, and the spraying distance can be fully reduced. Play the role of protecting the environment, reduce the number of times to move the equipment, and improve its use range.

The invention discloses a large-flow compressed air and foam mixing device and relates to the technical field of compressed air and foam mixing devices. The large-flow compressed air and foam mixing device solves the problem that because existing air-liquid mixing devices are simple in structure and air and liquid cannot be fully mixed when the flow of foam-mixed liquid is increased, the foaming quality is influenced. The large-flow compressed air and foam mixing device comprises a foam-mixed liquid nozzle. The foam-mixed liquid nozzle is connected with a mixing cavity, a conical turbulence device is arranged in the mixing cavity, the tail end of the conical turbulence device is connected with a secondary turbulence device, inner wall surface bosses are arranged on the inner side of the pipe wall of the mixing cavity, the arrangement length of the inner wall surface bosses on the inner wall surface of the mixing cavity is equal to the total length of the conical turbulence device and the secondary turbulence device, and air inlet pipes are uniformly arranged on the end surface, connected with the foam-mixed liquid nozzle, of the mixing cavity.

The invention relates to an atomization sterilization machine. The atomization sterilization machine includes a spray mechanism, a liquid replenishment tank, a fan and atomizers; and the atomization sterilization machine is characterized in that the spray mechanism includes a liquid storage part, an atomization chamber and a spray head communicating with one another, the spray head includes at least one azimuth mist outlet, the opening of the azimuth mist outlet is inclined upwards, the liquid supplement tank is connected to the liquid storage part through a liquid supplement pipeline, the fanis fixedly connected to an air inlet of the atomization chamber, a mist blocking plate extends from the lower end of the air inlet towards the interior of the atomization chamber, the mist blocking plate is inclined upward, and the atomizers are uniformly distributed at the bottom of the liquid storage part. According to the atomization sterilization machine, the wind direction is changed by themist blocking plate, and power is preferentially provided for small particles located in the upper region of the atomization chamber to obtain a longer spray distance; heights of the mist blocking plate and an atomization peak are matched, so that the atomized particles are screened, and a better mist dispersion effect is obtained; and the design of the 45 degrees elevation angle opening of the azimuth mist outlet is conducive to increasing the spray distance of the disinfection machine.

The invention relates to a spraying device, a spraying mechanism and an intelligent micro-spray pesticide applying system. The spraying device comprises two linear pushing rods, a high-pressure hose, a pressure communication tank and multiple atomizers, wherein the two linear pushing rods are both fixedly connected with the pressure communication tank, the high-pressure hose is communicated with the pressure communication tank, a fan is arranged in the middle of the pressure communication tank, and the fan blows wind towards the end, away from the linear pushing rods, of the pressure communication tank; the atomizers are placed at the end, away from the linear pushing rods, of the pressure communication tank and communicated with the pressure communication tank, and the atomizers form a circle to surround the edge of the pressure communication tank. Compared with the prior art, the spraying device has the advantages that micro-spray pesticide applying quality and efficiency can be improved, control precision is high, the influence of pesticides on the environment can be reduced, the device is flexible and can be adapted to various geomorphological conditions to conduct mechanical and automatic pesticide application, and labor intensity can be relieved.

The invention relates to the technical field of crop cultivation, in particular to a pesticide spraying device for rice crop cultivation. The device comprises a base, the middle of the upper surface of the base is connected with a bearing plate through a rotating structure, a hydraulic rod is movably connected to one side of the upper surface of the bearing plate, the top of the hydraulic rod is rotatably connected to one end of the bottom surface of an air pipe, a supporting rod is hinged to the other end of the bottom surface of the air pipe through a hinge, the bottom of the supporting rodis vertically welded to the side, away from the hydraulic rod, of the upper surface of the bearing plate, and a driving motor is installed at the top of the air pipe. The interior of a pesticide tankis pressurized through a vacuum pump, a pesticide inside the pesticide tank is extruded into a water tank, a servo motor works to drive stirring blades to fully mix the pesticide and water, then the fully-mixed pesticide is sprayed through a water pipe and sprayers, the driving motor drives fan blades to work, generated air flow can enlarge the spraying distance of the pesticide, and therefore allcrops can be covered with the pesticide.

The invention discloses an injecting device. The injecting device comprises a spraying head, a spraying pipe, a valve core and an elastic component, wherein a valve base is arranged on the inner wall of a spraying head cavity; the front end of the spraying pipe is communicated with the rear end of the spraying head and is connected with the rear end of the spraying head in a sealing way; the valve core is moved forwards or backwards in the spraying head cavity and the spraying pipe to be matched with or depart from the valve base; the front end of a valve core body is matched with an inclination part of the valve base; the valve core body is provided with a passage parallel to an axial line of the valve core body; the elastic component can apply a force enabling the valve core to move towards the valve base and to be matched with the valve base; a trigger can apply a force enabling the valve core to be departed from the valve base. Due to the fact that the valve core is provided with the passage parallel to the axial line of the valve core body, and the liquid does not deflect in the process from the time when the liquid enters the passage to the time when the liquid enters a spraying nozzle to be sprayed out, the resistance during flowing of the liquid is greatly reduced, the pressure higher than the pressure in the prior art can be maintained when the liquid is sprayed out of the spraying nozzle, the injection distance is increased, and even a medium with relatively high viscidity is not left at the spraying nozzle.

The invention provides a spraying angle adjusting mechanism and an agricultural spraying machine, and belongs to the technical field of agricultural spraying machines. The spraying angle adjusting mechanism comprises a vehicle body, a first adjusting assembly and a second adjusting assembly. The first adjusting assembly comprises a supporting beam, a rotary workbench, a lifting frame, a guide rail, a lifting base and a first hydraulic cylinder, and the second adjusting assembly comprises an angle support, a first extension frame, a second hydraulic cylinder, a second extension frame, a third hydraulic cylinder, a third extension frame and a fourth hydraulic cylinder. The first hydraulic cylinder is opened to adjust the spraying height, the side-stretching rotary spraying design is adopted,a traction type spraying machine does not need to move, the pesticide spraying distance and area are increased, the side-stretching spraying angle design is adopted, the spraying angle adjusting mechanism can be suitable for spraying crop on various slopes, the applicable terrain of the traction type spraying machine is increased, and the spraying angle of the agricultural spraying machine is greatly conveniently adjusted; and under complex terrains, the agricultural spraying machine is better in spraying effect and higher in spraying efficiency.