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59results about How to "Avoid health threats" patented technology

Rice moth egg collecting system

The invention relates to a rice moth egg collecting system. The rice moth egg collecting system is characterized by comprising a tank, one or more insulation layers are arranged inside the tank, and two rows of suspension devices are arrange inside each isolation layer at intervals; a rice moth egg vibration collecting groove is arranged at the portion, below the suspension devices, inside the tank, and the tail end of the rice moth egg vibration collecting groove stretches out of the tank; a rice moth egg vibration distributing machine is arranged at the tail end of the rice moth egg vibration collecting groove, and a conveying device is arranged at the tail end of the rice moth egg vibration distributing machine; a rice moth egg collecting disc is arranged on the top of the conveying device. An automatic control device is arranged on the tank, and the rice moth egg vibration collecting groove, the rice moth egg vibration distribution machine and the conveying device are electrically connected with the automatic control device. A pneumatic component is arranged inside the tank, one end of the pneumatic component is electrically connected with an automatic control system, the other end of the pneumatic component is connected with a frame structure through a pipeline, the frame structure is arranged inside the corresponding isolation layer, brushes are connected to the interior of the frame structure in a fastened mode, and the brushes are arranged between the two adjacent suspension devices.
Owner:BEIJING ACADEMY OF AGRICULTURE & FORESTRY SCIENCES

Fiber conveying device applied in fiber assisted fracturing process of oil-gas well and operating method for fiber conveying device

ActiveCN102536188AFalling smoothlyAvoid issues such as blowoutFluid removalFiberEngineering
The invention relates to a fiber conveying device applied in the fiber assisted fracturing process of an oil-gas well. The fiber conveying device comprises a delivery cavity which is in a shape of a right conical platform, a motor a and a motor b, wherein the small end of the delivery cavity is fixedly connected with the top of a sand mixing tank; the delivery cavity is communicated with the sand mixing tank; a top cover is arranged at the large end of the delivery cavity; a stirring hole is formed in the center of a circle of the top cover; a bearing is fixedly arranged on the inner wall of the stirring hole; a hollow shaft passes through the top cover and is arranged in the delivery cavity by the bearing; a driven gear is arranged on the upper part of the hollow shaft; the motor b is arranged on the top cover; a driving gear is arranged on the motor b; the driving gear is in transmission connection with the driven gear; and a feeding hole which is communicated with the delivery cavity is also formed in the top cover. By the fiber conveying device, fibers and materials in the sand mixing tank can be mixed safely and efficiently, the threat to the health of staff due to the exposure of the fibers is avoided, environmental pollution is reduced, the using amount of the fibers is reduced, and the production cost and operating cost are low.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

Control method for charging-and-discharging testing of battery and system thereof

The invention provides a control method for charging-and-discharging testing of a battery and a system thereof. The control method comprises the steps of S20, setting a preset number of testing timesin a controller; S30, detecting the electric quantity of the battery, and determining whether the electric quantity of the battery is higher than a first preset electric quantity or lower than a second preset electric quantity; S40, when the controller detects a fact that the electric quantity is higher than the first electric quantity, performing discharging on the battery through a discharging circuit until the electric quantity of the battery is lower than the second preset electric quantity; S50, when the controller detects a fact that the electric quantity of the battery is lower than thesecond preset electric quantity, charging the battery through a charging circuit until the electric quantity of the battery is higher than the first preset electric quantity; S60, recording the number of charging-and-discharging testing times by the controller, and determining whether the number of charging-and-discharging testing times reaches a preset number of testing times; and S70, if yes, stopping charging and discharging to the battery; and otherwise, returning to the step S30. The control method and the system thereof have advantages of realizing automatic control for charging-and-discharging testing on the battery, saving manpower and improving testing efficiency.
Owner:SHANGHAI MROBOT TECH CO LTD

Fiber conveying device applied in fiber assisted fracturing process of oil-gas well and operating method for fiber conveying device

ActiveCN102536188BFalling smoothlyAvoid issues such as blowoutFluid removalFiberEngineering
The invention relates to a fiber conveying device applied in the fiber assisted fracturing process of an oil-gas well. The fiber conveying device comprises a delivery cavity which is in a shape of a right conical platform, a motor a and a motor b, wherein the small end of the delivery cavity is fixedly connected with the top of a sand mixing tank; the delivery cavity is communicated with the sand mixing tank; a top cover is arranged at the large end of the delivery cavity; a stirring hole is formed in the center of a circle of the top cover; a bearing is fixedly arranged on the inner wall of the stirring hole; a hollow shaft passes through the top cover and is arranged in the delivery cavity by the bearing; a driven gear is arranged on the upper part of the hollow shaft; the motor b is arranged on the top cover; a driving gear is arranged on the motor b; the driving gear is in transmission connection with the driven gear; and a feeding hole which is communicated with the delivery cavity is also formed in the top cover. By the fiber conveying device, fibers and materials in the sand mixing tank can be mixed safely and efficiently, the threat to the health of staff due to the exposure of the fibers is avoided, environmental pollution is reduced, the using amount of the fibers is reduced, and the production cost and operating cost are low.
Owner:CHINA UNIV OF PETROLEUM (EAST CHINA)

Waste storage device for medical examinations

The invention discloses a waste storage device for medical examinations. The waste storage device comprises a storage box, an inner box, ultraviolet sterilization lamps, a waste liquid collecting boxand a control box; the inner box is arranged in the storage box; the ultraviolet sterilization lamps and sterilization devices are arranged on the side walls of the inner box; the control box is arranged in the gap; a pressing device is arranged in the inner box; a filtering plate component is arranged below the pressing device; the waste liquid collecting box is arranged below the filtering platecomponent; a water drainage pipe is arranged at the bottom of the waste liquid collecting box; an electric box cover is arranged above the storage box; and a pushing component is arranged above the outer wall of one side of the storage box. According to the waste storage device, the ultraviolet sterilization lamps are arranged, so that sterilization can be performed on waste, and health threats to users due to bacterium breeding can be avoided; the electric box cover and the pressing device are arranged, so that multi-layer separation can be performed on the waste, and pollution caused by thefact that bacteria carried by the waste overflows to the outside can be avoided; and meanwhile, the waste can be downwards pressed by the pressing device, so that the use space of the inner box can be utilized in the maximized manner.
Owner:BAOTOU MEDICAL COLLEGE OF INNER MONGOLIA UNIV OF SCI & TECH

Fruit-vegetable selenium-enriched compound fertilizer

The invention discloses fruit-vegetable selenium-enriched compound fertilizer, which is prepared from the following components in parts by weight: 200 to 240 parts of a mixture of chicken manure, duck manure and sheep manure, 50 to 70 parts of a mixture of sweet potato leaf and lettuce leaf, 30 to 50 parts of floating aquatic plant dry powder, 5 to 15 parts of clam shell powder, 20 to 30 parts of urea, 15 to 25 parts of sodium selenite, 4 to 6 parts of manganese sulfate, 5 to 7 parts of zinc sulfate, 3 to 5 parts of magnesium sulfate, 5 to 7 parts of phosphate rock powder, 3 to 5 parts of culture and 18 to 22 parts of potassium humate. According to the fruit-vegetable selenium-enriched compound fertilizer, through adding poultry-livestock manures and plant fibers, overall nutrients are provided for the growth of a crop; the sodium selenite is applied to the selenium-enriched fertilizer; the threats of the fertilizer self to the health of a producer and a consumer are evaded. Meanwhile, fermentation is carried out on the plant fibers and the poultry-livestock manures by adopting the culture; organic compounds of high molecular protein and the like in the plant fibers and the poultry-livestock manures are decomposed; the organic compounds are degraded into nutritional ingredients which are suitably absorbed by a plant; the absorption factor of the crop to a nutritional substance can be improved.
Owner:刘杰

Environment-friendly toner cartridge

The invention discloses an environment-friendly toner cartridge, which comprises a casing, and a paper feeding groove is arranged on the casing, and a paper feeding roller is arranged in the paper feeding groove, and both ends of the paper feeding roller are connected with the paper feeding groove. The inner wall is rotatably connected, the housing is provided with a toner cartridge, and both sides of the housing are provided with connecting devices, the top of the housing is provided with a powder inlet, and the powder inlet is connected with a powder pipe. The powder feeding pipe is located in the housing, the other end of the powder feeding pipe is connected to the toner cartridge, and the powder feeding pipe is connected to the toner cartridge, a plunger is provided in the powder feeding port, and the powder feeding port is connected to the plunger A sealing ring is arranged between, and the sealing ring is fixed on the inner wall of the powder feeding port, and a sealing device is arranged around the plunger, and the sealing device is fixed on the top of the housing. The invention can prevent the carbon powder from spilling when adding the powder, so that the carbon powder floats in the air, pollutes the air, and threatens people's health, and has a simple structure and low cost.
Owner:TIANJIN ZHIJIE TECH CO LTD

Touch device for electromagnetic field radiation sensitivity test on capacitive touch screen

The invention discloses a touch device for the electromagnetic field radiation sensitivity test on a capacitive touch screen. The touch device comprises an electromagnetic field isolation chamber, andthe capacitive touch screen is arranged in the electromagnetic field isolation chamber. The touch device comprises a touch mechanism arranged in the electromagnetic field isolation chamber, and a remote control mechanism arranged outside the electromagnetic field isolation chamber. The remote control mechanism is in control connection with the touch mechanism. The touch mechanism comprises a touch pen used for touching the capacitive touch screen, and a driving mechanism used for driving and controlling the touch pen to perform the touch test on the capacitive touch screen. According to the invention, the limit field intensity test can be carried out on the capacitive touch screen and the requirement of an aviation aircraft is met. The touch stability of the capacitive touch screen is guaranteed, and the safety is improved. The remote test mode is adopted, and the electromagnetic field isolation chamber provides isolation. Therefore, the test personnel cannot be influenced by the high-intensity field intensity, so that the health threat of the test personnel is completely eradicated. A safe testing environment is provided. The touch device is simple and reliable in design and easyto implement.
Owner:SUZHOU CHANGFENG AVIATION ELECTRONICS

Long-acting anti-fog silicon-based gel antifogging agent for lens and preparation method and application thereof

ActiveCN111518469AIncrease surface adsorptionUniform and rapid expansionCoatingsOptical partsPolyvinyl alcoholSilicic acid
The invention relates to a long-acting anti-fog silicon-based gel antifogging agent for a lens and a preparation method and application thereof. The antifogging agent is composed of a silicon-based sol solution and a long-chain polysaccharide/amino molecule crosslinking solution, the silicon-based sol solution comprises tetraethyl orthosilicate, cyclopentasiloxane, a polydimethylsiloxane crosslinking polymer and an organic solvent; the long-chain polysaccharide/amino molecule crosslinking solution comprises deionized water, polysaccharide molecules, polyvinyl alcohol, an amino molecule surfactant and a photocatalytic adhesive agent cerium oxide. Silica sol in the anti-fog sol is crosslinked with hydrophilic polysaccharide molecules and amino molecules to form a core-shell structure with arigid center and a soft long chain, water drops are enabled to evenly and rapidly expand whole surface through capillary action, and moisture absorption and antifogging effects are achieved; the long-chain polysaccharide/amino molecule is used as an end-capping reagent to inhibit the volatilization of a surfactant, cerium oxide is introduced to increase the surface adsorption force of silica sol,and the problem of poor light transmittance caused by poor adhesive force of an original water-based anti-fog coating film is solved.
Owner:SHANGHAI JIAO TONG UNIV

Double-ring flow-limiting type tree nutrition delivering apparatus

The present invention discloses a double-ring flow-limiting type tree nutrition delivering apparatus, and belongs to the double-ring flow-limiting type tree nutrition delivering apparatus in the technical field of afforestation. A purpose of the present invention is to provide a double-ring flow-limiting type tree nutrition delivering apparatus so as to completely drip the drug liquid in the bag and save the drug liquid resource. The double-ring flow-limiting type tree nutrition delivering apparatus comprises a nutrition liquid holding bag and a dripping pipe, wherein the nutrition liquid holding bag and the dripping pipe are connected, the nutrition liquid holding bag comprises an outer layer body and an inner layer body, the outer layer body and the inner layer body are integrally adhered, a belt-shaped member is adhered outside the outer layer body, the adhesion between the belt-shaped member and the outer layer body is larger than the adhesion between the outer layer body and the inner layer body, rings are correspondingly arranged on both sides of the outer layer body, the outer layer body is a PE airtight membrane, the inner layer body is a ePTFE modified membrane or ePTFE laminated composite membrane, the top portion of the dripping pipe is provided with a tapered hole, a floating ball is arranged in the tapered hole, the top portion of the tapered hole is provided with a funnel-like flow limiting plate, and the middle portion of the funnel-like flow limiting plate is provided with a through hole.
Owner:XINDU XINFAN YAXIN GARDENING FIELD

Oil fume waste gas treatment device for kitchen

The invention discloses an oil fume waste gas treatment device for a kitchen. The oil fume waste gas treatment device for the kitchen comprises a gas inlet funnel; the inner wall of one side of the gas inlet funnel is provided with a placement frame; the outer wall of one side of the placement frame is provided with an exhaust fan; the inner wall of one side of the gas inlet funnel is provided with an oil fume pipe; one end, far away from the gas inlet funnel, of the outer wall of the oil fume pipe is provided with a treatment tank; the positions, close to the top and the bottom, of the innerwall of one side of the treatment tank are provided with fixed sheets respectively; the outer wall of the top of the treatment tank is provided with air inlets which are distributed at an equal interval; the inner walls of the two sides of each air inlet are provided with bulges respectively; the position, at the bottom, of the outer wall of one side of the treatment tank is provided with a rectangular hole; and a drawing plate is connected to the inner wall of the bottom of the rectangular hole in an inserting manner. The oil fume waste gas treatment device for the kitchen can prevent the phenomenon that oil fume is difficulty cleaned due to high temperature, can clean relatively large particle impurities in the oil fume, can retard the flowing speed of the oil fume and prevents the phenomenon that the device cannot timely perform purification treatment on the oil fume caused by too rapid flowing speed of the oil fume.
Owner:深圳市唯绿农产品有限公司
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