1594 results about "Air blast" patented technology

The invention relates to the field of coal mine exhaust control, in particular to a coal mine exhaust control method and device based on environmental perception. The method comprises the following steps: acquiring multi-dimensional monitoring signals based on environment sensing sensors at multiple positions of a mine, performing distributed sensing marking, and constructing a global gas concentration sensing graph; the method comprises the following steps: acquiring position information of operating personnel in real time based on a miner positioning sensor, performing short-time movement prediction on the operating personnel, and generating a miner movement prediction path; obtaining a coal mine internal structure chart, and carrying out average oxygen consumption rate budget and instantaneous oxygen supply demand calculation based on the miner movement prediction path to obtain oxygen supply demand indexes of each unit; and according to the oxygen supply demand index of each unit, intelligent exhaust power calculation adjustment is carried out, and a conventional exhaust control strategy is constructed. Ventilation efficiency of the coal mine area is improved, emergency blast treatment is carried out under the risk condition, the risk problem response capacity is greatly improved, and safety of the coal mine area is enhanced.

A fan includes a main body of fan and a bracket assembly. The main body of fan is connected to the bracket assembly. The main body of fan includes a blower part for blowing air, a rotating bracket and a main unit. The rotating bracket is arranged between the blower part and the main unit and is configured to connect the blower part and the main unit. The main unit is configured to control air blowing of the blower part. The bracket assembly includes at least one bendable and shapeable supporting leg configured to fix the fan to an external object. A rotating bracket is rotatably connected to both a blower part and a main unit, enabling vertical and horizontal rotation of the blower part. This configuration achieves multi-angle adjustment of the blower part, simplifies user control over airflow direction, and thereby significantly improves user experience.

The utility model provides a treatment system for a refuse landfill, which comprises a plurality of repair wells and a plurality of extraction wells arranged on the refuse landfill, and an aerobic aeration, liquid phase and gas phase extraction system connected with the repair wells and the extraction wells, the aerobic aeration and liquid phase and gas phase extraction system comprises air blasting equipment, moisture and nutrient substance blending equipment, landfill gas extraction equipment and leachate extraction equipment, the air blasting equipment is connected with the repair well, and an inlet connected with the moisture and nutrient substance blending equipment is formed in the air blasting equipment; and the landfill gas extraction equipment and the leachate extraction equipment are connected with the extraction well. According to the utility model, comprehensive treatment of the refuse landfill is realized, and the system is not only suitable for in-situ treatment of stock refuse without excavation and departure, but also suitable for stabilization pretreatment of stock refuse excavation, departure and ex-situ treatment.

The utility model relates to the technical field of traditional Chinese medicinal material treatment, in particular to material screening equipment for traditional Chinese medicinal material treatment, and aims to solve the technical problems that a traditional winnowing technology is low in separation precision, poor in adaptability to medicinal materials with different densities and shapes and prone to causing medicinal material loss. Comprising a feeding mechanism, a winnowing box, an air inlet channel, an air channel, a discharging channel, an air pipe, an air outlet, a ball valve, a sliding plate, a connecting plate, a hydraulic cylinder, a support, a feeding shell, feeding blades and a feeding shaft, a draught fan blows air into the winnowing box through the air inlet channel to conduct winnowing on medicinal materials, and then high-speed airflow carries the medicinal materials to enter the next winnowing box through the air channel. The wind power in the next winnowing box is reduced by adjusting the opening degree of the ball valve, impurities with the quality slightly close to that of normal medicinal materials are further removed, in this way, during multi-stage treatment, complete separation of the medicinal materials and the impurities and impurity removal, all the sliding plates are controlled to slide out at the same time, the winnowing boxes are communicated with one another, impurities fall down and are discharged through the bottom winnowing box, and impurity removal is completed.

The invention relates to the technical field of dust concentration measurement, and particularly discloses a dust concentration intelligent detection device and method, the dust concentration intelligent detection device comprises a shell assembly, the shell assembly comprises a main shell, a ventilation pipe is arranged on one side of the main shell, a top shell is arranged above the ventilation pipe, a bottom shell is arranged below the ventilation pipe, and an air blowing assembly is arranged in the ventilation pipe; a rotating assembly is arranged in the main shell, an air blowing assembly is arranged outside the rotating assembly, a dust collection assembly is arranged on one side of the rotating assembly, and a measuring assembly is arranged on the bottom side of the air blowing assembly. And under the reflection of the oblique light source of the measuring assembly, by utilizing the sensitivity of light reflection, a descending minimal variable is converted into a moving huge variable after the light is reflected, so that the magnification observation of the weight is facilitated, and the accuracy of the experiment is improved.

A vehicle control system and method based on an air flow rate, control introduction of outside air based on an estimated driving current value of a blowing device, obtained through a current model preset based on a calm wind state, and an estimated air flow rate value of an inlet, obtained through an air flow rate model preset based on an outside wind state.

The invention relates to an intelligent aeration system and a control method, and belongs to the technical field of sewage treatment. The system comprises a clean water tank, an aeration tank, a data acquisition unit, a PLC control unit and an aeration unit. The system dynamically calculates the required DO set value by collecting the inlet water chemical oxygen demand, the clear water ammonia nitrogen concentration, the sludge concentration and the sewage temperature of sewage in real time, calculates the difference value between the actual DO value and the required DO set value, calculates the aeration amount needing to be adjusted, and finally adjusts the blast volume through the aeration unit. The problems that a traditional aeration system is high in energy consumption and low in control precision are solved, insufficient aeration or excessive aeration can be effectively avoided, and stable effluent quality is guaranteed.

The invention discloses a high-efficiency high-fire combustion system which is characterized by comprising a furnace end assembly, an injection pipe, a gas distribution ring, an air door plate, an air blowing box, an air blower and a valve body assembly, the air door hole extends towards the air inlet end of the injection pipe to form an air door ring wall; the outer wall of the part, extending into the blast cavity, of the gas nozzle and the annular wall of the air door form a blast air guide channel; the air blowing and guiding channel is arranged on the periphery of the gas nozzle in a surrounding mode. According to the invention, in a high-fire combustion state, the bypass air channel supplements additional high-fire gas to the high-fire gas supply cavity on the front side of the gas distribution ring through the high-fire gas supply cavity, meanwhile, the air blower is started, additional air is blown to the air blowing cavity through the air blowing box, and the additional air is forwards sent out through the air blowing and guiding channel; and a continuous, stable and high-speed'air curtain barrier 'is formed on the periphery of the outlet of the gas nozzle. The annular air curtain can resist external pressure fluctuation even if the blower operates at high power to generate strong wind.

A blast furnace operation method according to one aspect of the present disclosure comprises: a parameter estimation step for estimating blast parameters and a pulverized coal ratio in a second operation, such that the amount molten iron produced, the molten iron temperature, and the furnace top gas temperature in the second operation match those in a reference operation; a change information acquisition step for acquiring information on a temporal change in one or both of the molten iron temperature and the amount of molten iron produced when performing the second operation based on the blast parameters and the pulverized coal ratio estimated in the parameter estimation step with a delay of a predetermined time after switching from the reference operation to the first operation; a repeating step for performing the change information acquisition step a plurality of times while changing the predetermined time; and an optimum delay time acquisition step for determining, as an optimum delay time, a predetermined time such that the temporal change in the molten iron temperature or the amount of molten iron produced is the smallest, on the basis of the information acquired in the repeating step. After switching from the reference operation to the first operation, the second operation based on the blast parameters and the pulverized coal ratio estimated in the parameter estimation step is started with a delay of the optimum delay time.

The utility model discloses a polyester film corona treatment device which comprises a main body mechanism, the main body mechanism comprises a shell, two corona treatment assemblies symmetrically mounted on the inner wall of the shell, guide rollers mounted on the inner walls of the two sides of the shell respectively, tension rollers rotationally mounted on the opposite inner walls of the shell, a plurality of air blowing pipes fixed on the opposite inner walls of the shell, and an air blowing piece mounted on one side of the shell and communicated with the air blowing pipes; the support is fixed to the inner wall of the shell, the filtering part is embedded in the support in a sliding mode and extends out of the shell, the shell is used for installing other assemblies, meanwhile, a closed environment is formed, dust is prevented from being attached to a film in the corona treatment process, the corona treatment assemblies are used for conducting corona treatment on the film, and the two corona treatment assemblies are symmetrically arranged, so that the corona treatment efficiency is improved. The corona treatment device for the polyester film can perform corona treatment on the two sides of the film at the same time, the corona treatment efficiency of the film is improved, and the corona treatment device for the polyester film has the advantages of good corona efficiency and corona effect.

The present invention relates to the technical field related to precision parts processing, and in particular to a feeding device for precision parts processing, comprising a processing machine tool, a processing tool magazine seat and a processing table, wherein the inner bottom of the processing machine tool is provided with a stepping screw for driving the processing table to move through the machine tool base, and a base guide rail for limiting and guiding the processing table is provided on the side of the stepping screw in the processing machine tool. The present invention cleans the debris on the periphery of the rotating stepping screw by the blast nozzle in the blast cleaning assembly, and a plurality of precisely designed blast nozzles are cleverly arranged at the key peripheral area of ​​the stepping screw, and utilizes a continuous clean compressed air flow to form a directional airflow barrier to protect the upper surface of the screw rod, while also achieving the cleaning of the periphery of the screw rod, and the debris on the base guide rail is swung back and forth by twisting the cleaning plate in the cleaning assembly to clean the debris, thereby improving the cleanliness of the base guide rail and improving the stable performance of the processing table feeding.

The utility model discloses a fire extinguishing bag gas circuit filling mechanism for an aviation fire extinguishing water tank, which comprises a blast unit, a feeding unit, a hatch unit, a feeding unit, a dragging unit and a sealing pull ring component unit, and the blast unit, the feeding unit, the hatch unit and the feeding unit are sequentially abutted and fixedly connected. One end of the dragging unit is detachably connected with the feeding unit, the other end of the dragging unit is fastened with the sealing pull ring assembly unit, the air blowing unit and the feeding unit are installed on the outer side of the top of the water tank, the hatch unit, the feeding unit and the dragging unit are located in the water tank, and the sealing pull ring assembly unit is located on the outer side of the water tank. The mechanism solves the problems that in the prior art, when an aviation fire extinguishing water tank is filled with fire extinguishing bags, the filling efficiency is low, the fire extinguishing bags are unsmooth to convey, and a hose is unsmooth to move.

The utility model relates to the technical field of waste heat recycling, and particularly discloses a waste heat recycling device of a sintering circular cooler, which comprises a dust removal structure and a heat exchange structure connected with the dust removal structure, and the dust removal structure comprises a primary cyclone dust removal assembly and a secondary cyclone dust removal assembly communicated with the top of the primary cyclone dust removal assembly. An air blowing assembly is arranged at the top of the secondary cyclone dust removal assembly; the heat exchange structure comprises a supporting frame, a first heat exchange tank and a second heat exchange tank, wherein the first heat exchange tank and the second heat exchange tank are horizontally installed on the supporting frame. Heat exchange pipe sets are arranged in the first heat exchange tank and the second heat exchange tank. The sintering circular cooler waste heat recovery device achieves efficient dust removal and waste heat recovery of high-temperature waste gas, has the advantages of being simple in structure, convenient to maintain, high in heat exchange efficiency and the like, and is suitable for the field of sintering circular cooler waste heat recovery in steel smelting and other industries.

The invention relates to the technical field of fatigue testing, and discloses a blade fatigue testing device and method based on a vortex-induced vibration principle, the blade fatigue testing device based on the vortex-induced vibration principle comprises a test bench foundation and at least one excitation unit, the test bench foundation is suitable for fixing a blade root of a tested blade; the excitation unit comprises a blade cover body and a pneumatic loading module, the blade cover body is of an annular structure fixedly arranged on the periphery of a test blade in a sleeving mode, the pneumatic loading module is arranged below the blade cover body, and the pneumatic loading module comprises a frame and at least one air blowing piece installed on the frame; wherein the air blowing piece is configured to blow air to the blade cover body, and turbulent flow is formed at the blade cover body. Non-contact excitation is achieved through aerodynamic coupling, the additional mass influence caused by mechanical connection is avoided, and full-size fatigue verification of the blade is completed under the condition that the natural vibration characteristic is kept.

The utility model discloses a plate blank clamp tooth anti-falling device which comprises a heat conduction pipe and an inclined hole formed in a plate blank clamp, a heat conductor is filled in the inclined hole, the bottom of the inclined hole is close to a clamp tooth fixing bolt, the heat conduction pipe comprises an inclined pipe section and a vertical pipe section, the inclined pipe section is inserted in the inclined hole, and phase change materials are filled in the inclined pipe section. The upper end of the inclined hole is in threaded connection with a plug, and a sealing washer matched with the inclined pipe section is arranged on the inner ring of the plug. The vertical pipe section is attached to the plate blank clamp, a plurality of fins are arranged on the vertical pipe section, and a blast pipe parallel to the vertical pipe section is further arranged on the plate blank clamp; heat near the clamp tooth fixing bolt is effectively conducted out to the outside through the heat conduction pipe and cooled through air cooling, so that the situation that the temperature of the periphery of the clamp tooth fixing bolt is increased violently when a hot plate blank is clamped can be effectively avoided, the temperature difference of the periphery of the clamp tooth fixing bolt in the working state and the shutdown state is reduced, the phenomena of thermal expansion and cold contraction are relieved, and the service life of the clamp tooth fixing bolt is prolonged. And the safe work of the clamp tooth fixing bolt is ensured.

The invention relates to the technical field of display screen engraving, in particular to display screen machining and engraving equipment which comprises a machining box body and a laser engraving machine, a transverse displacement mechanism for moving a display screen is arranged at the top of the machining box body, and a base block is arranged at the top of the transverse displacement mechanism; a base block is arranged on the moving frame, a fixing frame for carving and positioning a display screen is movably arranged on the top of the base block, an inclined material overturning assembly for overturning and cleaning the fixing frame is arranged on the base block, and a blast discharging assembly for cleaning the top of the fixing frame is arranged on the moving frame. Machining scraps originally attached to or accumulated on the top and the peripheral edge of the display screen are effectively stripped under the action of gravity, a cleaning spray head in the air blowing discharging assembly is used for stripping, guiding airflow pointing to a containing hole is formed, and the stripped scraps and dust are separated from the display screen under the combined action of airflow coercing and gravity. And the air is efficiently and directionally purged and guided into the accommodating hole.

According to the furnace top heat supply type annular roasting system, the annular working face is adopted, the cooling section is divided into four sections, hot air from the furnace hoods flows to the four process sections, hot air generated by the furnace hoods of the first cooling section and the second cooling section is used for pellet roasting after being heated in a pipeline, hot air generated by the furnace hoods of the third cooling section and the fourth cooling section is used for preheating and forced air drying of pellets, and therefore the pellet roasting efficiency is improved. By means of the arrangement, hot air utilization is more sufficient and reasonable, energy is saved, heat distribution is even, and pellet underfiring and overfiring are prevented. The preheating section and the roasting section adopt a furnace cover top air supply technology, so that bias flow of hot air in a furnace cover is reduced, and the technology is a guarantee for uniform roasting of pellets. Drying, preheating, roasting and cooling processes of the pellets are all completed on one device, and operation is easy. And compared with a belt type roasting machine, trolleys are reduced by half, and the investment is relatively low. The system has the characteristics of small occupied area, uniformity in pellet roasting and low investment cost, and is suitable for medium and small-scale production. The invention further provides a process method of the furnace top heat supply type annular roasting system.

The full-automatic curing chamber for composite film production comprises a curing chamber body and a plurality of film winding rollers, and a plurality of first vertical supports are arranged on the inner walls of the left side and the right side of the curing chamber body. The industrial air heater is matched with the hot air booster pump to guide hot air into the blast cover through the first hot air pipe, the four-way pipe fitting, the second hot air pipe, the two-way pipe fitting and the third hot air pipe, so that the blast cover is matched with the air holes to uniformly spray the hot air into the curing chamber, uniform temperature distribution is ensured, and the curing effect is improved; the roller shafts at the two ends are arranged on the two inclined supports on the same horizontal plane, the roller shafts abut against the semi-cylindrical protrusions in a sliding mode, the limiting pulleys are inserted into the limiting open grooves and abut against the strip-shaped arc-shaped protrusions in a sliding mode, and therefore the thin film winding roller can be conveniently and rapidly transferred; and the film winding roller on the inclined bracket led out of the curing chamber is subjected to blast heat dissipation through the heat dissipation fan, so that the cured film winding roller is conveniently and quickly subjected to blast heat dissipation, and the heat dissipation effect is improved.

The application discloses a belt roaster with staged utilization of hot air in a staged cooling process, comprising: a blast drying section, an exhaust drying section, a preheating section, a roasting section, a soaking section, a first cooling section, a second cooling section and a third cooling section in sequence along the direction of material flow; wherein the hot air generated by the first cooling section, the second cooling section and the third cooling section has a temperature of not less than 1100 DEG C, 600-800 DEG C and not more than 300 DEG C respectively, and the hot air is delivered to the roasting section, the preheating section and the blast drying section through pipelines respectively. The application can fully recover high-temperature waste gas, the hot air with different temperatures is applied to suitable process sections, the energy utilization rate is improved, and low-calorific-value fuel can be used while reducing process energy consumption by combining gas preheating or oxygen-enriched primary air / full-oxygen combustion.

The invention belongs to the technical field of metallurgy, and discloses a method for quickly reproducing after long-term damping-down reproducing of a blast furnace, which comprises the following reproducing steps: step 1, a hearth core active preheating step: before blast reproducing of a main tuyere of the blast furnace or at the initial stage of reproducing, introducing oxygen-containing gas into a hearth central area through at least one iron notch, the central area of the hearth is actively heated; and 2, a drainage channel pre-construction step: opening the other iron notch after the blast of the main tuyere of the blast furnace is recovered and before a large amount of liquid iron slag is formed, and enabling high-temperature coal gas to be sprayed outwards from the iron notch by utilizing the pressure of gas formed in the furnace so as to dredge the hearth, heat the iron notch area and pre-construct the iron slag drainage channel. The cold state problem of the center of the hearth is solved through active preheating, a smooth drainage channel is constructed in advance through high-pressure coal gas flow, an iron notch area is heated, and the fatal risk that a high-temperature liquid phase newly produced in the initial stage of re-production gathers in the front edge area of the tuyere is fundamentally avoided.

The invention relates to the technical field of sewage treatment, and discloses an environment-friendly aeration device and method for chemical sewage treatment. The device comprises a conveying module used for detecting chemical oxygen demand and sludge concentration and calculating target dissolved oxygen concentration and initial aeration control parameters; the driving module is used for calculating the aeration depth and driving the aeration bracket to lift and rotate to perform sweeping type aeration; the control module is used for processing the dissolved oxygen deviation and the deviation change rate through a fuzzy reasoning algorithm to obtain a controller parameter adjustment amount; the blowing module is used for updating controller parameters and adjusting the rotating speed of a blower to output total air supply; and the adjusting module is used for calculating a gas distribution coefficient and adjusting the opening degree of each branch pipe valve to distribute the total gas supply. The adaptive capacity of the aeration device to water quality fluctuation and the dissolved oxygen concentration control precision are improved, the energy consumption of the air blower is reduced, and the aeration uniformity of each area is improved.

The utility model discloses a cooling device for plastic granulation processing, which comprises a discharge pipe arranged at the discharge end of a granulator and an eduction pipe arranged below the discharge pipe, and the input end of the eduction pipe is used for receiving plastic particles output by the discharge pipe; the air blowing mechanism is arranged on one side of the input end of the eduction pipe, and the storage tank is arranged on one side of the output end of the eduction pipe; the eduction tube comprises a cooling jacket arranged on the outer side of the middle section of the discharge tube in a coating manner; according to the utility model, the outer side of the eduction tube is coated with the cooling jacket. When the cooling jacket is opened, the cooling jacket can conduct heat exchange on passing plastic particles, and a low-temperature area is formed in the eduction tube. The direct heat exchange is beneficial to rapidly reducing the temperature of the particles, preventing the temperature of a local area from being too high, and reducing the heat accumulation phenomenon caused by accumulation.

The invention discloses a spraying type ice maker which comprises a top cover, a shell and a base plate, a compressor and a condenser which are located on one side of the base plate and arranged side by side are installed on the lower side of the shell, and a fan which directly blows air to the outer side of the shell is installed beside the condenser; a cold water storage tank with a 7-shaped hopper-shaped cavity structure is mounted in the shell beside the compressor and the condenser, and the top end of the cold water storage tank is sealed by a top cover; a spiral automatic ice discharging device used for automatically supplying ice blocks outwards is obliquely arranged in the middle of the cold water storage box. A spraying ice-making device located on the upper portion of the rear side in the cold water storage box is arranged on the upper side of the spiral automatic ice discharging device. A spraying water pump for pumping ice water stored at the bottom of the cold water storage tank to the spraying ice-making device through a pipeline to perform spraying ice-making is also mounted on the outer wall of the storage cavity at the lower part of the cold water storage tank; the whole machine is small in size, capable of automatically controlling ice discharging, high in ice making efficiency and suitable for home use, the evaporator is integrally formed through the die-casting technology, and the heat transfer efficiency of the evaporator and the ice block quality are improved.

The invention relates to the related technical field of welding, in particular to a welding tool for electronic device manufacturing, which comprises a processing box body, a welding machine and a welding gun, the top of the processing box body is fixedly provided with a base cylinder, the top of the base cylinder is provided with a folding positioning assembly, and the folding positioning assembly is used for surrounding, centering and positioning a circular circuit board; the folding positioning assembly comprises a rotating disc and arc-shaped guide columns, the four arc-shaped guide columns conduct flexible centering clamping on the circular circuit board synchronously in the radial direction, the rotating disc is provided with a surrounding sweeping assembly, and the surrounding sweeping assembly conducts sweeping, blowing and cleaning on the top of the circular circuit board. Through linkage operation of the surrounding sweeping assembly and the folding positioning assembly, thorough cleaning of the surface of a circuit board is completed while clamping is conducted, the coverage area of fan-shaped swing air blowing is large, no dead angle exists, the risk of poor welding caused by pollutants is remarkably reduced, the swing dust collection assembly dynamically swings in the welding process, a welding gun heat source is tightly tracked, and the welding efficiency is improved. And harmful gas and smoke dust are efficiently captured.

1. The name of the design product: towed air-blast sprayer (II). 2. The use of the design product: for spraying water mist or pesticide mist. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view 1. 5. The bottom view of the design product is the part that is not easy to see or cannot be seen when in use, so the bottom view is omitted.

The application discloses a kind of baking food blast drying oven, it is related to food drying technical field, including drying oven shell, the tank of being installed in the inside of drying oven shell, be set in the left and right sides of tank and be fixed in the bottom tank of tank lower end, the inside of drying oven shell is at least installed with two around wind channel structure from top to bottom, the top of tank is installed with and the air inlet of around wind channel structure is connected electric heating air blowing component, the left and right sides of tank bottom are respectively provided with the disc type shelf that can rotate around its own axis, the inside of bottom tank is installed with and the magnetic key shaft connection component of selectively power connection of disc type shelf is carried out.The application makes baked goods rotate around the axis of disc type shelf, and follow dynamic air duct structure rotation air supply, while variable speed adjusting assembly provides power for side inner air blowing component, forms inner circulation air area at tank inner wall, realizes the position dynamic change of baked goods in drying process and the optimization of air flow field.

The invention discloses a desert air condensation water production system utilizing wind and light residual electricity, relates to the technical field of air condensation water production, and particularly comprises a wind and light residual electricity recovery unit, a blast unit, a hot water pumping unit, a cold water pumping unit and an air condensation water production unit, the wind-light residual electricity recycling unit is used for converting wind-light residual electricity into heat energy and cold energy in time, and adopts a double-path storage design, hot water is stored in the heat storage water tank, and cold water is stored in the cold storage water tank; the air condensation water production unit comprises a plurality of moisture absorption units and condensation units, and moisture absorption materials are arranged in the moisture absorption units. The environment characteristic that the night humidity of the desert area is remarkably increased is fully utilized, and through the collaborative dehumidification strategy of active dehumidification and passive temperature difference dehumidification, the energy consumption of the system is reduced, meanwhile, the desert air condensation water production efficiency is improved, residual electricity which cannot enter a power grid is effectively utilized, and the problem of water shortage of a wind and light power generation area is solved.

The application provides a kind of air shock wave and fragment composite injury rapid evaluation method and system, it is related to data processing technical field.The method comprises: obtaining explosion working condition parameters;According to the explosion working condition parameters, determine the peak value of air shock wave overpressure;According to the peak value of air shock wave overpressure, determine the damage probability value of air shock wave to personnel;According to the explosion working condition parameters, determine the initial velocity of fragment and the number of fragments;According to the initial velocity of fragment and the number of fragments, determine the damage probability value of fragment to personnel;Comprehensive air shock wave damage probability value of personnel and the damage probability value of fragment to personnel, evaluate air shock wave and fragment composite damage probability value.The application can quickly evaluate air shock wave and fragment composite damage probability value, the evaluation cost is low, the implementation difficulty is small, without complex biological modeling, evaluation time is short, can meet the timeliness demand of emergency treatment, can provide more rapid, convenient decision support for actual rescue.

The invention discloses a calf breeding device and method for cattle breeding, and relates to the technical field of calf breeding, the calf breeding device comprises a foundation plate, a breeding cage is fixedly arranged on the foundation plate, a water tank and a trough are arranged in the breeding cage, a door body is arranged on the side face of the breeding cage, and side plates are fixed to the front side and the rear side of the top of the foundation plate; a breeding platform is mounted between the side plates; a back plate is fixed to the right side of the breeding cage, and an air blowing assembly is installed on the back plate. A gap is reserved between the lower portion of the back plate and the breeding platform, and a pollution discharge assembly corresponding to the breeding platform is installed on the right side of the top of the foundation plate. Safe protection can be provided for calves, proper temperature is provided for the interior of the breeding cage through the air blowing assembly and the fence protection assembly, so that breeding of the calves is facilitated, in addition, excrement can be conveniently cleaned through cooperation of the movable conveying belt in the breeding platform and the pollution discharge assembly, and cleanliness and sanitation are guaranteed.

The application provides a wind power generation equipment and belongs to the technical field of wind power generation. The wind power generation equipment comprises a blowing part, a connecting seat connected with the blowing part, and an adjusting mechanism located in the connecting seat. The adjusting mechanism comprises a driving assembly, at least one connecting disc connected with the driving assembly, and balls arranged on the connecting disc. The connecting disc is driven to rotate in the connecting seat by the driving assembly, and the balls are used to reduce the friction during rotation, so that the windward angle of the blowing part is adjusted. The angle of the blowing part can be adjusted according to the wind direction, so that the wind power generation equipment is always in the direction of the wind direction, and the utilization efficiency of wind energy is further improved.