24results about How to "Reduce inhalation" patented technology

The invention discloses a large-scale integrated device for extracting helium from BOG (boil-off gas) gas, which comprises a mounting bottom plate, a fixed frame body and a mounting frame body, the fixed frame body is mounted at the upper end of the mounting bottom plate, the mounting frame body is mounted between the fixed frame body and the mounting bottom plate, and an extraction structure is arranged at the upper end of the mounting bottom plate. The extraction structure comprises a first-stage catalytic dehydrogenation reactor, a cooler, an adsorption assembly, a raw material gas compressor, a separation assembly, a vacuum pump, a second-stage catalytic dehydrogenation reactor, a third-stage catalytic dehydrogenation reactor, a helium purifier, a fixing assembly, a helium bottle and a rotary mounting assembly. Due to the fact that the physical properties of hydrogen and helium are very close, hydrogen in pure helium cannot be removed through a pressure swing adsorption or cryogenic process, the permeability coefficient of gas molecules is increased by adopting a mode of pressurizing before membrane and vacuumizing after membrane, and the helium can achieve high yield and purity by using a small membrane area.

The utility model discloses a silencer shell detection tool, and particularly relates to the technical field of silencer shell detection tools, which comprises a detection tool piece arranged at the top of a bottom plate and used for fixing a silencer shell. The supporting mechanism is distributed in a mirror image mode and used for supporting the silencer shell, the two sets of detection tool hole mechanisms are used for positioning the silencer shell, the first transverse positioning mechanism and the second transverse positioning mechanism are used for transversely positioning the silencer shell, and the two sets of detection block mechanisms are arranged outside the two ends of the silencer shell respectively. According to the utility model, the hole site on the silencer shell is clamped through the detection tool hole mechanism, the two ends of the silencer shell are aligned and leveled through the first transverse positioning mechanism and the second transverse positioning mechanism, and then the two ends of the silencer shell are pressed and fixed through the detection block mechanism, so that through multi-direction positioning, the detection efficiency is improved; and the assembly accuracy of the silencer shell can be ensured, so that the accuracy and stability of subsequent welding of the silencer shell are improved.

The invention discloses a lens mold clamping device, and relates to the technical field of lens production, the lens mold clamping device comprises a base, a clamping mechanism mounted on the base and used for clamping a lower mold base and an electric push rod mounted on the base and used for driving an upper mold base to move in the vertical direction, and a waste gas treatment mechanism is mounted on the base; the waste gas treatment mechanism comprises a UV photolysis device mounted at the top of the base, a gas suction hood mounted at the top of the base and a negative pressure assembly mounted at the top of the base; and an air inlet pipe of the UV photolysis device is communicated with the air suction cover through a negative pressure assembly. According to the invention, harmful gas inhaled by workers can be reduced.

The utility model discloses a cement self-leveling floor surface automatic color slinging mechanical device which comprises a bearing plate and supporting plates, the two sides of the bearing plate are both provided with the supporting plates, the supporting plates are fixedly connected with the bearing plate, a collecting box is installed at the top ends of one set of supporting plates, the collecting box is fixedly connected with the supporting plates, and the supporting plates are fixedly connected with the collecting box. First hydraulic cylinders are arranged at the corners of the top end of the supporting plate correspondingly and fixedly connected with the supporting plate, first pushing arms are installed at the output ends of the first hydraulic cylinders correspondingly, pulleys are installed at the bottom ends of the first pushing arms correspondingly, and dust suction rings are installed at the bottom ends of the adjusting frame and the bearing plate correspondingly. According to the device, dust and gas can be conveniently sucked and filtered, matched grinding areas can be adjusted in a linkage mode, multiple sets of areas can be conveniently ground at the same time, dust inhaled by a user is reduced, and the use safety and grinding efficiency of the operator are improved.

This invention relates to a dry ice spray cleaning and sterilizing device, aiming to solve the technical problem of the current dry ice spray cleaning and sterilizing devices having only a single spraying operation function. The device includes a cabinet; an embedded sterilization and cleaning tank is provided on the upper surface of the cabinet; the gap between the inner wall of the cabinet and the outer wall of the embedded sterilization and cleaning tank forms a multi-stage operating chamber; the embedded sterilization and cleaning tank is an electrically heated structure; and multiple cleaning components are provided inside the multi-stage operating chambers; and a dual-mode sterilization and cleaning system is provided at the output end of the multi-stage cleaning components; a transparent splash guard is hinged to the outer wall of the cabinet relative to the embedded sterilization and cleaning tank. This invention improves the cleaning effect of high-pressure dry ice spraying by adapting two operating modes to the continuous, efficient, and fully covered contact of the foam cleaner, and adapting the intermittent contact of the dry ice spraying operation to the changes in spray distance caused by angle changes during actual operation.

The utility model relates to a heating device for steel belt production, which is applied to the technical field of steel belt production equipment and realizes that a steel belt enters the heating equipment from a discharge hole in the back surface of the heating equipment to be heated and processed and is conveyed to a conveying belt from a discharge hole in the front surface of the heating equipment after being heated, so that the heated steel belt is conveyed. Heat generated in the machining process leaks into the protective cover from the discharging port, waste gas generated in the machining process leaks accordingly, at the moment, the air pump can be started to extract the waste gas leaked into the protective cover through the exhaust pipe for purification treatment, the waste gas is prevented from being leaked into the air, and meanwhile when the steel belt subjected to heating treatment is conveyed through the conveying belt, the waste gas is prevented from leaking into the air. When the steel belt moves out of the protective cover from the opening, the blocking brush scrapes the steel belt at the moment, chippings carried in heating treatment are swept to the conveying belt, the chippings fall into the storage box to be collected and treated when the conveying belt rotates, the blocking brush can shield the opening, the outlet is narrowed, and heat loss can be weakened.

A method for increasing the amount of gas recovered in the early stage of smelting under low iron consumption mode includes the following steps: 1) When the converter is started and ignited, the speed of the primary dust collector fan is 1200 r / min to 1300 r / min; 2) After the converter is started and ignited normally, the movable fume hood is lowered to the lower limit; 3) The converter is blown for 1 minute and 30 seconds to complete the start-up curve, and the blowing oxygen pressure is increased to 0.90 Pa to 0.95 MPa; 4) The position of the blowing lance in the early stage is reduced from 1.85 m to 1.65 m to increase the temperature rise rate of the molten pool in the early stage; 5) The timing and structure of charging are adjusted according to the trend of molten iron temperature and carbon monoxide content in flue gas; 6) The speed of the primary dust collector fan is increased in a stepwise manner to reduce the amount of air intake and the amount of carbon monoxide burned in the flue gas; gas recovery is carried out after the conditions for gas recovery are met. This method optimizes the timing of material feeding by adjusting the position of the blowing lance, the material distribution structure, and the speed of the primary dust removal fan in the early stage of the blowing process, and by combining the trend of carbon monoxide content in the flue gas. This enables rapid temperature increase in the early stage of the blowing process, thereby improving the timing of carbon-oxygen reaction and gas recovery time in the early stage of converter smelting.

The utility model relates to the technical field of sewage treatment, and disclose a coal mine wharf sewage treatment is with multilayer filtration's clean water pool, including clean water pool body, clean water pool body includes the aeration tank for treating coal mine wharf sewage, is located the collecting piece for collecting gas in aeration tank top, is used for treating the gas after collection's purification device and gas recycling device, and purification device includes dust removal dehydration unit, desulfurization deodorization unit and oxygen enrichment unit, and dust removal dehydration unit, desulfurization deodorization unit and oxygen enrichment unit are sequentially connected and set up. The clean water pool of the application has realized the whole process collaborative treatment of sewage pretreatment, aeration reaction, gas recovery purification and recycling, can effectively remove coal dust, water vapor, hydrogen sulfide, volatile organic compounds and other pollutants in gas, and improve oxygen concentration, both avoid secondary pollution, and realize the resource recovery of coal dust.

This application discloses a 3D printing post-processing workstation, which includes a worktable, a door, a mask, and a recycling device. The recycling device includes a recycling pipe, a first recycling section, a recycling tank, and a suction pump. The first recycling section is fixed to the door and has a first suction port, which opens at the upper end of the door. The suction pump draws the printing material sucked in from the recycling pipe and the first suction port into the recycling tank by creating negative pressure. Compared with existing technologies, this technical solution effectively improves the working environment and operating conditions for operators.

The utility model discloses a titanium alloy powder cold isostatic pressing mould charging device, including the upper and lower intercommunication's material tank and vacuum box. The material tank is connected with the vacuum box feed port through the discharge port of taking the valve, and vacuum system, glove port and observation window are equipped for the vacuum box, and the vibration dish, rotatory disc and weighing device are established at the bottom of the box, and the cold isostatic pressing mould is placed on it. The device prevents titanium powder oxidation through the vacuum environment, and the vibration uniform material is combined with the rotation material distribution and improves the uniformity of charging, and the weighing device realizes accurate control, and the quality of cold isostatic pressing blank is improved obviously.

The utility model discloses an oblique flow type air water cooling source cooling unit relates to high pressure frequency converter heat dissipation technical field, the inside fixed mounting of box body has shell and tube type condenser and compressor, the inner wall fixed mounting of box body has electric cabinet, the top fixed mounting of box body has the fan, the inner wall one side fixed mounting of box body has evaporimeter, fixed mounting has the oblique flow board in the air duct between fan and evaporimeter, install the expansion valve on the pipeline that shell and tube type condenser and evaporimeter communicate, and the air outlet is opened and communicated between box body and frequency converter chamber, and the device passes through efficient refrigeration system and air path design, effectively reduces the heat that high pressure frequency converter generates when operating, prevents indoor temperature too high, simultaneously, the indoor negative pressure that optimization's air pressure and air volume control reduced, avoids dust to be inhaled indoor, thereby protects electrical equipment from dust influence, prolongs equipment life.

The utility model relates to the technical field of agricultural planting, and disclose an irrigation sprinkler device for agricultural planting, including mobile base, the top of mobile base is installed with rotating mechanism, and the top of rotating mechanism is provided with support column. This irrigation sprinkler device for agricultural planting is provided with motor, screw rod, lifting piece, connecting plate, sprinkler head, receiving plate, pivot and electric push plate, can drive screw rod to rotate and drive lifting piece to lift through starting motor, make the height of sprinkler head adjust, can adjust the spraying range of crops in turn, and starting electric push plate can push receiving plate to rotate on the pivot, make the inclination angle of sprinkler head adjust, make the spraying direction of sprinkler head adjust in turn, make sprinkler head can carry out accurate spraying irrigation to somewhere, reached the effect that the height and angle of sprinkler head were adjusted, improved the practicality of spraying device.

This invention relates to drug nebulizers, specifically disclosing a wearable respiratory medicine drug nebulizer, comprising a housing and a handle fixedly connected to its lower end. The housing has an internal air collecting tube and an external exhaust port extending into the air collecting tube, with a breathing mask connected to the exhaust port. An elastic cord for wearing the breathing mask on the patient's face is connected to the housing, and a medicine bottle is mounted at the upper end of the housing. An air compressor is installed inside the housing. The air collecting tube is connected to the medicine bottle via an air delivery tube, and the middle part of the air delivery tube is connected to the exhaust end of the air compressor. This invention results in fewer droplets in the breathing mask during patient exhalation, reducing medication waste; and more droplets in the breathing mask during patient inhalation, facilitating the inhalation of more medication-containing droplets, thereby improving medication utilization.

This invention discloses a die-casting release agent recovery device, relating to the field of die-casting release machine recycling technology. It includes a processing device with a guide shell on one side. A fixed frame is fixedly connected to the guide shell, and a first protective shell is fixedly connected to the fixed frame. A sliding frame is slidably connected to the first protective shell, and an oil-absorbing ring is fixedly connected to the side of the sliding frame away from the first protective shell. The guide shell is used to scrape off floating oil from the oil-absorbing ring. This invention utilizes the reciprocating motion of the oil-absorbing ring to contact and absorb floating oil from the waste liquid surface. Even under conditions of strong surface disturbance in the waste liquid, effective adsorption of floating oil can be achieved. Compared with the prior art of directly extracting floating oil, this invention utilizes the oil-absorbing characteristics of the oil-absorbing ring to more accurately identify and adsorb the oil layer, reducing water absorption while improving the purity and overall recovery efficiency of the recovered release agent.

The invention relates to the technical field of marking removing vehicles, in particular to a riding type marking removing vehicle with a self-suction function, which comprises a vehicle body, an engine part is mounted on the surface of the vehicle body, a driving area is arranged in the middle of the vehicle body, and marking removing mechanisms are arranged on two sides of the driving area. An electric push rod, a driving motor, a grinding disc, a connecting disc, a sliding frame and a containing groove are arranged in the marked line removing mechanism, a self-suction mechanism is arranged on the surface of the vehicle body and composed of a residue storage box, a water pump, a partition plate, a vacuum machine, a water tank and a spraying frame, and a replacing mechanism is arranged below the vehicle body. And a replacement assembly, a sliding groove and a fastening stud are arranged in the replacement mechanism. According to the marking line cleaning vehicle, dust suction of workers is reduced, the surrounding environment is not prone to being affected, and the convenience degree when the polishing disc of the marking line cleaning vehicle is replaced is improved.

The utility model discloses an environmental protection equipment dust remover belongs to environmental protection equipment technical field, including collection box, the one end of collection box is installed with the air pump, the suction end communication of air pump has with the air pipe of collection box inside intercommunication, the one end communication of collection box away from air pump has the hose. By the buckle is clamped in the hand of user, by switch control air pump's start -up, make the smoke and dust generated because electric welding is sucked into collection box and is intercepted by industrial filter cloth, thereby reached the effect of smoke and dust processing, reduced the smoke and dust inhaled by human body and reduced the pollution to the environment, help to protect the environment, through the bandage and fix collection box in the waist of user, cooperate the backrest and make the wearing of collection box more comfortable, and the user can climb to the high place, and the equipment that needs electric welding in the high place is handled to electric welding, thereby reached the effect that convenient to carry, help the user to carry the device when high -altitude operation.

The utility model provides a dangerous waste temporary storage warehouse which comprises a warehouse body used for storing dangerous waste and comprises a ceiling, a base, a first side wall, a second side wall, a third side wall and a fourth side wall, the first side wall and the second side wall are oppositely arranged in the first direction, the third side wall and the fourth side wall are oppositely arranged in the second direction, and the first direction is perpendicular to the second direction; the explosion door is arranged on the first side wall; the shutter is arranged at the top of the third side wall or the fourth side wall, is close to the first side wall and is used for ventilation; the explosion-proof fan is arranged at the louver and is used for exhausting gas in the warehouse body through the louver; the one-way air inlet is formed in the bottom of the second side wall and used for allowing air to enter the warehouse body. The dangerous waste temporary storage warehouse is simple in structure, can effectively prevent discharged harmful gas from entering the warehouse again, and is good in safety.

This invention discloses a U-shaped three-sided partition air curtain device installed in a range hood, including a blower installed inside the range hood, multiple evenly distributed air blowing pipes, a U-shaped air curtain pipe, and U-shaped air curtain nozzles arranged on the air curtain panel. The blower connects to the U-shaped air curtain pipe and the U-shaped air curtain nozzles on the air curtain panel installed under the hood through the air blowing pipes to form a U-shaped three-sided partition air curtain device. When the blower is activated, compressed air is sprayed downwards through the U-shaped air curtain pipe from the U-shaped air curtain nozzles to form a U-shaped three-sided vertical partition air curtain. Compared with the prior art, the U-shaped three-sided partition air curtain device installed in the range hood of this invention forms a U-shaped three-sided vertical partition air curtain by spraying air downwards from under the hood. It forms a closed air curtain chamber with the wall, which can confine the oil fumes generated during cooking within this air curtain chamber, preventing the oil fumes from escaping and preventing the disturbance of the outside air from affecting the oil fume extraction effect, reducing the passive inhalation of oil fumes by users, and avoiding adverse health effects.

The utility model discloses a multifunctional agricultural harvester structure which comprises a harvester body, the harvester body comprises a discharge port and a hopper, and a dust removal assembly is arranged above the inner side of the hopper; the dust removal assembly comprises a dust removal box, a bidirectional spiral blade is arranged in the dust removal box, a discharge port is formed in the bottom of the dust removal box, an arc-shaped baffle is arranged at the top of the discharge port, a blocking net is arranged at the top of the dust removal box, a mounting groove is formed above the blocking net, and a dust suction fan is arranged in the mounting groove. The first motor drives the two-way spiral blade to rotate, so that crops in the dust removal box move towards the two sides, dust in the crops can be raised, the raised dust is absorbed by starting the dust absorption fan, the dust raising condition in the hopper is reduced to the maximum extent, and the dust removal efficiency is improved. And during subsequent collection, inhalation of workers is reduced, and human health is guaranteed.

This invention relates to the field of electric drive control technology for high-pressure, high-displacement pumps in oilfield fracturing operations. It discloses a vehicle-mounted high-power electric drive system. The high-voltage power distribution unit is connected to the power input unit and consists of a load switch and a circuit breaker connected in series. The load switch is connected to a fuse to output low-voltage control power. The circuit breaker is sequentially connected to a phase-shifting transformer and a medium-voltage frequency converter to provide the main power supply for the medium-voltage motor of the fracturing pump. The input terminal of the pre-charge unit is connected to the load switch, and the output terminal is connected to the phase-shifting transformer. A cooling system provides cooling for the phase-shifting transformer and the medium-voltage frequency converter. This invention also discloses a control method for the vehicle-mounted high-power electric drive system. This vehicle-mounted high-power electric drive system and its control method enable the integrated vehicle-mounted operation of a high-power, high-displacement fracturing pump skid and its drive system in the fracturing engineering field, significantly reducing on-site work intensity, lowering operating costs, and mitigating on-site risks.

The utility model discloses a kind of water and fertilizer integration mixing irrigation devices, it is related to water and fertilizer mixing technology field, and the utility model includes the one end of venturi pipe is equipped with adjusting assembly, adjusting assembly is used to adjust the water inflow of venturi pipe, adjusting assembly extends to the outside of connecting pipe by connecting pipe, stirring assembly is installed on liquid storage box, stirring assembly is used to stir fertilizer solution, the utility model is adjusted by the setting of adjusting assembly, by rotating screw rod drives cone to move, to adjust the clearance between the outer wall of cone and the inner wall of venturi pipe, to adjust the different fertilizer solution mixing amount, adapt to different needs, compared with the cost of existing water and fertilizer irrigation equipment is lower.

This invention discloses an energy-saving motor based on an intelligent ventilation system, comprising a motor body, a fan shroud on the rear end cover of the motor body, and n ventilation holes (n>1) evenly distributed circumferentially on the rear end cover; each ventilation hole is provided with a ventilation component; each ventilation component includes a fixed frame, a sliding frame, and a wind-blocking block; the fixed frame covers the ventilation hole, the sliding frame is slidably connected to the fixed frame, and a ventilation opening is opened on the sliding frame, with an adjustment component provided on each ventilation opening; a wind-blocking block is connected to the inner side of the sliding frame and is located in the corresponding ventilation hole; a mounting ring is provided on the inner side of the motor body, and the rotating shaft passes through the center of the mounting ring; each sliding frame is connected to the mounting ring on the outer side via a telescopic rod. This invention ensures the stability of the rotor rotation while maintaining airflow cooling effect during high-intensity operation of the motor body.