17results about How to "Reduce potential harm" patented technology

This utility model discloses a ceramic tile blank glazing device with a protective structure, belonging to the field of glazing. The device includes a glazing machine body, a door panel rotatably mounted at the front of the working chamber of the glazing machine body, a collection platform fixedly mounted at the bottom of the glazing machine body for collecting excess glaze, and a placement platform fixedly mounted on the upper part of the collection platform for placing the ceramic tile blank. The placement platform includes a support plate with multiple inclined flow channels on its upper part. When the operator places the ceramic tile blank on the support plate, the door panel closes, creating a sealed environment to prevent glaze splashing and dust diffusion. During glazing, excess glaze flows naturally to the edge through the inclined flow channels on the support plate and is captured by the collection platform, preventing the glaze from being exposed to the air for extended periods and reducing the volatilization of harmful substances.

The utility model discloses a lead-free environment-friendly copper alloy bar for a valve, which comprises a lead-free copper alloy bar body, a hollow hole is arranged at the center of the lead-free copper alloy bar body, a plurality of inclined planes are arranged on the surface of the lead-free copper alloy bar body at equal intervals, an anti-corrosion paint layer is arranged on the surface of the lead-free copper alloy bar body, and the anti-corrosion paint layer is arranged on the surface of the lead-free copper alloy bar body. The lead-free copper alloy bar has the advantages that through the arrangement of the hollow holes, the weight of the lead-free copper alloy bar body is reduced, meanwhile, enough strength is kept, meanwhile, resistance and thermal resistance are reduced, and the electric conduction efficiency and the heat conduction efficiency are improved; the copper alloy material is low in cost, low in cost and free of lead and chromium, meets international environmental protection standards, reduces potential hazards to the environment and human bodies, keeps high strength, high toughness and good machinability of a traditional copper alloy, and is suitable for manufacturing various valve parts.

This utility model discloses a waste treatment device for isothiazolinone production, relating to the field of isothiazolinone production technology. The waste tank is connected to a first filter, the first filter is connected to a settling tank, the settling tank is connected to a distillation tank, the distillation tank is connected to a degradation tank, the degradation tank is connected to a sedimentation tank, the sedimentation tank is connected to a second filter, the second filter is connected to a nanofiltration membrane device, and the nanofiltration membrane device is connected to a treatment water tank. This device can effectively remove harmful substances from the isothiazolinone production waste, achieving harmless treatment of the waste and also realizing resource recycling to a certain extent, thus possessing good environmental and economic benefits.

This application relates to the field of high-purity semiconductor materials, specifically to a method for preparing ultra-high purity tungsten wire. The method includes the following steps: Step S1: Cutting ultra-high purity tungsten rods with a diameter of 19-21 mm from an ultra-high purity tungsten plate; Step S2: Performing high-temperature heat treatment on the ultra-high purity tungsten rods from Step S1, followed by continuous heating-rotary forging, and repeating the heating-rotary forging process to obtain pretreated ultra-high purity tungsten rods; Step S3: Sequentially subjecting the pretreated ultra-high purity tungsten rods from Step S2 to a process of attaching graphite emulsion, heating, and drawing to obtain black tungsten wire, repeating the graphite emulsion, heating, and drawing process, followed by electrolytic polishing to obtain ultra-high purity tungsten wire. This application uses a 7N-grade ultra-high purity tungsten plate prepared by chemical vapor deposition (CVD) to prepare high-purity tungsten wire. The ultra-high purity tungsten rods are first subjected to high-temperature heat treatment, followed by continuous heating-rotary forging, and then finely drawn. The drawing method of this application ensures the purity and excellent performance of the tungsten wire.

This utility model relates to the field of aerospace technology and discloses an integrated bolt cleaning and lubrication device, comprising: a conveying assembly, which includes a conveyor belt, a first drive unit, and a bolt mounting unit. The power output end of the first drive unit is connected to the conveyor belt for driving its movement. The bolt mounting unit is disposed on the conveyor belt and can fix the bolt head; a cleaning assembly and a lubrication assembly, which are arranged at intervals along a first direction. The cleaning assembly has a cleaning channel for bolts to pass through, and the lubrication assembly has a lubrication channel for bolts to pass through; and a waste liquid purging assembly, which is disposed between the cleaning assembly and the lubrication assembly for purging the cleaning liquid adhering to the bolts. The integrated bolt cleaning and lubrication device provided by this utility model can realize automated and integrated cleaning and lubrication operations, thereby solving the problems of high labor intensity, low efficiency, and health risks associated with manual bolt handling in the prior art.

The utility model relates to the technical field of honing processing devices, and discloses a precise honing processing device of a bimetal cylinder liner, which comprises a honing device main body, one end of the honing device main body is provided with a controller, the honing device main body is internally provided with a honing head, two sides of the honing device main body are respectively provided with a first sliding groove, and a second sliding groove is arranged in the first sliding groove. A first sliding groove is formed in one end of the honing device body, a first sliding block is slidably connected into the first sliding groove, a protective cover is slidably connected to one end of the honing device body, the protective cover is fixedly connected with the first sliding block, a circular groove is formed in one end of the first sliding block, and a first spring is fixedly connected into the circular groove. According to the precise honing machining device for the bimetal cylinder sleeve, cuttings and cooling liquid generated by high-speed rotation and friction can be prevented from splashing all around, so that the cleanliness of the working environment is kept, and potential hazards of the cuttings and the cooling liquid to operators and equipment are greatly reduced.

The utility model relates to the technical field of protective nets, and discloses a metal mine safety protective net device which comprises a protective plate and is characterized in that an additional plate is arranged in the protective plate in a sleeved mode, protective nets are fixedly arranged in the additional plate and the protective plate, and a transmission assembly is arranged at the connecting position of the protective plate and the additional plate. Hinge pieces are fixedly arranged at the two ends of the top of the additional plate, rotating rods are sleeved with the hinge pieces, a buffering mechanism is fixedly arranged at one end of each rotating rod, and a supporting assembly penetrates through the rear side of the additional plate. According to the protective net, the transmission assembly is arranged to drive the additional plate to move up and down in the protective plate, so that the protective height of the protective net can be adjusted and increased, the protective net can be matched with metal mine slopes with different heights, and the practicability of the protective net can be improved.

The invention relates to an insect-resistant agent and a prevention and control method for plant pests, and relates to the technical field of plant insect-resistant agents. Wherein the insect-resistant agent comprises a semen cuscutae extract; the preparation method of the semen cuscutae extract comprises the following steps: carrying out first extraction treatment on dried semen cuscutae powder by adopting a first solvent, and removing an extracting solution to obtain powder subjected to the first extraction treatment; the first solvent is an aliphatic alkane solvent; carrying out second extraction treatment on the powder subjected to the first extraction treatment by adopting a second solvent, and removing an extracting solution to obtain powder subjected to the second extraction treatment; the second solvent is an ester organic solvent; performing third extraction treatment on the powder subjected to the second extraction treatment by adopting a third solvent, and collecting a third solvent extracting solution; the third solvent is one or more of ethanol, methanol and water; and performing solvent removal treatment on the third solvent extracting solution to obtain the semen cuscutae extract. The invention mainly develops an insect-resistant agent which is green, efficient, low in toxicity and not easy to generate drug resistance.

The utility model discloses a kind of radioactive drug multilayer safety storage cabinet, comprising: cabinet, be set between the inner wall of cabinet two sides Several placing plate, and adjusting mechanism being set on the upper surface of placing plate;Adjusting mechanism includes: two fixed plates, two fixed plates are fixedly connected on the upper surface of placing plate, the side opposite of two fixed plates is all set with sliding slot, slidingly connected with several adjusting plates between two fixed plates, the both ends of several adjusting plates are all fixedly connected with sliding block, slidingly connect several adjusting plates between the fixed plate on placing plate, and the sliding block of adjusting plate both ends slides in sliding slot, it can be according to the spacing between adjusting plate of different specifications medicine box adjustment, limiting block slides in limiting slot, cooperate the elastic action of spring, so that the movement of adjusting plate is more stable and has certain buffer, so that device ontology can adapt to different size medicine box storage, improve the adaptability and space utilization of device ontology.

The present application relates to electroplating water treatment technical field, specifically to a kind of new energy battery busbar's electroplating water treatment device, including support, sleeve mechanism, filter assembly, rotating mechanism, sealing cover and drive machine;The support is installed on ground, the sleeve mechanism is installed on support, transition cavity is opened in the inside of sleeve mechanism for the water that will be collected after processing is completed, then is discharged from drain outlet;The filter assembly is installed in the inside of sleeve mechanism, electroplating wastewater is filtered by filter material placed in filter groove filter plate and carries out preliminary filtration;The rotating mechanism is installed in the middle of sleeve mechanism, and the stirring fan blade in rotating mechanism drives electroplating wastewater to rotate, after centrifugal layering treatment, the water in the middle is passed through overflow port and enters sleeve mechanism;The sealing cover is installed on the top of sleeve mechanism;The drive machine is installed at the top of rotating mechanism, and the drive machine drives rotating mechanism to rotate or move up and down.

The present application relates to the technical fields of preparation of carbendazim suspension agent, and discloses a mixing device for improving uniformity of carbendazim suspension agent, wherein the ultrasonic generator, the vibrating mixer and the stirrer are arranged, the ultrasonic generator generates high-frequency sound waves to drive the mixer to vibrate at high frequency for dispersion mixing, meanwhile, the vibrating mixer can also resonate with the rotating stirrer to further improve the mixing efficiency, compared with the traditional stirring mixing mode, the ultrasonic mixer can more effectively disperse the particles into the liquid and produce uniform mixing effect, the high-power mechanical vibration can promote the mixing effect, meanwhile, the powerful mechanical vibration can more quickly and completely disperse the particles and realize uniform mixing, so that the production efficiency can be improved and the time can be saved.

The invention discloses an X-ray bioactive protective agent and a preparation method thereof, and belongs to the field of biological medicine. The protective agent is composed of 10%-30% of a bioactive composite extract, 5%-15% of an antioxidant, 3%-10% of a cell protective agent, 1%-5% of a skin penetration enhancer, 0.5%-3% of a thickening agent, 0.1%-1% of a preservative and a solvent. The bioactive compound extract contains sea-buckthorn, roxburgh rose and aloe extract, and cooperates with an antioxidant and a cell protective agent to play a protection role. The preparation method comprises the following steps: extracting plant effective components, compounding, and mixing with other components according to a process. The protective agent can relieve X-ray damage from the biological activity level, has the advantages of being good in protective effect, high in safety, small in irritation, high in stability and the like, and is suitable for reducing damage of X-rays to human tissue and cells.

This invention discloses a waterproof mesh film for plastic greenhouses, relating to the technical field of high-toughness, UV-resistant polymer compositions. The waterproof mesh film for plastic greenhouses is prepared from raw materials comprising the following parts by weight: 60-80 parts polyolefin resin, 15-35 parts polyolefin elastomer, 10-25 parts filler and reinforcing agent, 0.3-1.5 parts light stabilizer, 0.2-0.8 parts antioxidant, and 0.5-2 parts processing aid. The addition of light stabilizer and antioxidant, and their synergistic effect, effectively prevents the photo-oxidation reaction and thermal oxidative degradation of polymer materials under ultraviolet radiation, significantly improving the UV aging resistance of the waterproof mesh film and reducing problems such as material performance deterioration, discoloration, fading, and decreased waterproof performance caused by long-term outdoor use. The waterproof mesh film of this invention exhibits significant advantages in flexibility and impact resistance, making it less prone to tearing and damage when facing harsh weather, frequent folding, or contact with sharp objects, thus extending its service life.

This invention discloses a method for establishing a carbon dioxide hydrate caprock on the seabed, belonging to the field of carbon dioxide sequestration technology. The method includes: establishing an injection well and a production well, both located in the seabed sedimentary layer, with the production well's opening above the injection well's opening; injecting liquid CO2 through the injection well; a portion of the injected liquid CO2 forms CO2 hydrate, while a portion migrates to the area where the production well's opening is located; extracting fluid through the production well at a pressure of 85%–115% of the CO2 gas-liquid equilibrium pressure under the temperature conditions in the production well's area, thus converting the liquid CO2 into gaseous CO2, enhancing CO2 hydrate formation, and obtaining a carbon dioxide hydrate caprock in the area where the production well's opening is located. This invention can enhance CO2 hydrate formation, obtain a carbon dioxide hydrate caprock, increase CO2 sequestration capacity, and reduce the risk of CO2 leakage.

The utility model discloses an oil spraying device for tubular pile demoulding, which comprises a support frame, a lifting component is arranged in the support frame, a moving plate is arranged in the support frame through the lifting component, a U-shaped plate is fixedly mounted on the front side of the moving plate, a moving component is arranged at the top of the moving plate, and the U-shaped plate is fixedly mounted on the top of the moving plate. An L-shaped plate is arranged on the front side of the moving plate through a moving assembly, the L-shaped plate is in sliding connection with the U-shaped plate, a spraying assembly is arranged in the L-shaped plate, and an air draft filtering assembly is arranged on the front side of the L-shaped plate. Mist-shaped mold oil can be prevented from drifting into air through the U-shaped plate and the L-shaped plate, the mist-shaped mold oil in the cavity formed between the U-shaped plate and the L-shaped plate can be collected through the air draft filtering assembly, recycling of the mold oil is achieved through the measure, the production cost is reduced, meanwhile, disordered diffusion of the mold oil in a workshop is further prevented, and the mold oil recycling efficiency is improved. And the protection on the production environment is enhanced.

The utility model relates to the technical field of spraying equipment, and discloses a paint spraying device for automobile part machining, which comprises a handle, a movable groove is arranged on the inner wall of the handle, a ball is arranged on the inner wall of the movable groove, the ball is connected with a spray head through a clamping component, and a fixing ring is fixedly connected to the outer wall of the handle. A sleeve is slidably connected to the outer wall of the fixing ring, a control assembly is arranged on the inner wall of the sleeve, a supporting ring is fixedly connected to the outer wall of the handle, a paint spraying plate is rotatably connected to the left end of the supporting ring, and a first fixing seat and a second fixing seat are fixedly connected to the front end of the supporting ring and the front end of the paint spraying plate correspondingly. The first fixing base is connected with the second fixing base through a clamping assembly. According to the utility model, the spray head can be conveniently detached from the handle to be replaced, so that the damaged spray head can be independently replaced, the maintenance cost is reduced, paint is prevented from being sprayed into the air, the volatilization of the paint in the air is effectively reduced, and the potential harm to operators is reduced.

The invention belongs to the technical field of pathological slide preparation experiment teaching, and particularly relates to an environment-friendly method suitable for pathological slide preparation experiment teaching, and the method comprises the following steps: a novel environment-friendly reagent is used for replacing traditional toxic reagents formaldehyde and xylene, and the novel environment-friendly reagent comprises a FineFIX stationary liquid, a Servicebio environment-friendly dewaxing liquid and a BASO environment-friendly slide sealing adhesive. The environmental pollution is obviously reduced. In the production, use and waste processes, negative effects on the environment are small, emission of harmful gas is reduced, potential hazards of a laboratory to the surrounding environment are reduced, the risk that experimenters make contact with harmful substances for a long time can be remarkably reduced, and influences on the health of the experimenters are small.