12 results about "Oil paraffin" patented technology

The utility model relates to the technical field of paraffin oil cooling of pill dropping equipment, and discloses paraffin oil cooling circulation equipment which comprises a paraffin oil box, a cooling tank, a cooling machine and a circulating pump, the paraffin oil tank is provided with a first oil outlet pipe, a first oil inlet pipe, a second oil outlet pipe and a second oil inlet pipe; the first oil outlet pipe and the first oil inlet pipe are respectively configured to be communicated with two ends of a cooling pipe in the pill dropping machine; a cooling pipeline is arranged in the cooling tank, the bottom of the cooling tank is provided with an oil inlet end and an oil outlet end which are communicated with the two ends of the cooling pipeline respectively, the oil inlet end is communicated with the second oil outlet pipe through a pipeline, and the oil outlet end is communicated with the second oil inlet pipe through a pipeline; the input end and the output end of the cooling machine are both communicated with the cooling tank; and the circulating pump is arranged on a pipeline between the second oil outlet pipe and the oil inlet end of the cooling tank. The paraffin oil cooling circulation equipment provided by the utility model can solve the problem of how to improve the heat dissipation efficiency of the paraffin oil.

A repairing agent and repairing method for a graphite crucible. The repairing agent is a two-component repairing agent and comprises an interface repairing agent and a surface layer repairing agent. The interface repairing agent is prepared by taking graphite powder, paraffin oil, asphalt powder, pyridine, and an SiC-Y2O3 slurry as raw materials, and the surface layer repairing agent is prepared by taking petroleum coke powder, graphite powder, asphalt powder, and a resin material as raw materials. The corresponding graphite crucible repairing method relates to using a repairing agent as a tool to repair a damaged area of a damaged graphite crucible; during repairing of the damaged graphite crucible, coating the damaged area of the damaged graphite crucible with an interface repairing agent; after the coating is completed, covering the coating area by an aluminum foil, wrapping with a glass fiber mesh, performing pre-curing treatment, and using a surface repairing paste to finally complete the repairing operation of the graphite crucible. The repairing agent and the repairing method have a good repairing effect on the damaged graphite crucible and can be used to prolong the service life of the damaged graphite crucible.

The utility model discloses a kind of paraffin oil smearing devices, it relates to medical appliance field.The paraffin oil smearing device includes bottle body and brush head detachably arranged on the bottle mouth of bottle body, its distinguishing feature is also including extrusion device, the extrusion device includes installation cylinder, motor, screw rod, piston, battery and jog button, the bottom of installation cylinder is detachably connected with bottle body;The motor and battery are all arranged in the inside of installation cylinder;The bottom of bottle body is provided with through hole communicating inside and outside, the output shaft of motor passes through through hole and is towards the inside of bottle body, one end of screw rod is connected with motor output shaft, the other end of screw rod extends to the bottle mouth of bottle body, the piston is arranged in the inside of bottle body, and the middle region of upper surface is communicated with lower surface and is provided with screw hole matched with screw rod, piston can be moved in bottle body under the driving of screw rod.The paraffin oil smearing device can make paraffin oil directly smearing on using appliance, effectively improve smearing efficiency.

The invention, which relates to the technical field of the distribution box, discloses a distribution box with dual-sealing protection and self-adaptive heat dissipation functions, comprising a distribution box body, and a closing mechanism for closing the distribution box body at a low temperature is arranged outside the distribution box body. A locking mechanism for enhancing the sealing performance of the distribution box body is further arranged outside the distribution box body, a turnover mechanism is further arranged inside the closing mechanism, and a blowing mechanism for preventing sundries from blocking is further arranged outside the distribution box body. Paraffin oil expands when heated to push the piston to move downwards, the cover plate is driven to be opened, hot air exhaust is promoted, when the temperature is lowered, the paraffin oil shrinks, the cover plate automatically closes and seals the exhaust port, rainwater and moisture are effectively prevented from entering the box body, efficient heat dissipation under the high-temperature working condition is guaranteed, the water inflow risk in the low-temperature humid environment is avoided, and the service life of the box body is prolonged. And the operation safety and the environment adaptability of the distribution box are improved.

The application discloses a double-temperature-zone PCR micro-fluidic chip driven by biaxial centrifugal force for space application, which can provide simulated gravity under microgravity conditions through centrifugal force, and can eliminate the problem of air bubbles generated in the qPCR process; meanwhile, a variable-temperature mode of fixed-temperature-zone driving liquid is adopted, so that the power consumption demand in the amplification process is reduced. X and Y axes which are perpendicular to each other are divided along the center of the chip, and four regions are formed; each region contains a pipeline system with the same structure. Each pipeline system is as follows: an amplification system buffer channel is connected to an amplification system quantitative pool through a first capillary valve; a side of the amplification system quantitative pool is provided with a channel connected to a waste liquid pool, and liquid more than the capacity of the amplification system flows into the waste liquid pool; the other side of the amplification system quantitative pool is connected to a dry powder preset channel through a second capillary valve; the dry powder preset channel is connected to an amplification pool; the direction extension line of the amplification pool and the x axis and the origin form an acute angle; the amplification pool is divided into low-temperature and high-temperature constant-temperature zones. A paraffin oil sampling port is located in the middle of the amplification pool.

The invention provides a cable insulating material for 6-15kV coal mining machinery. The cable insulating material is prepared from the following raw materials in parts by weight: 60-80 parts of EPM, 20-40 parts of LDPE, 10-20 parts of zinc oxide, 1-3 parts of stearic acid, 3-6 parts of microcrystalline wax, 10-20 parts of spherical boron nitride, 10-20 parts of modified boron nitride, 20-40 parts of modified kaolin, 2-4 parts of an anti-aging agent, 1-2 parts of a coupling agent, 10-20 parts of paraffin oil, 2-3 parts of a vulcanizing agent and 0.5-1.5 parts of an assistant crosslinking agent. The cable for the intelligent coal mining machinery is prepared by adopting the insulating material, the cable for the coal mining machinery comprises a cable core and a sheath layer wrapping the cable core, and the cable core is formed by twisting three power wire cores and three groups of communication wire cores around a central special-shaped bracket; the center of the special-shaped support comprises multiple optical fibers. According to the cable for the 6-15 kV voltage grade coal mining machinery, the high voltage grade can be safely and stably applied to the severe coal mining working condition, compared with the current highest 3.3 kV, the sectional area of the cable of the coal mining machine can be greatly reduced, the use cost of a user is reduced, and the use experience of the user is improved.

The invention provides rolling oil for producing aluminum foil for new energy and an asymmetrical rolling process. A preparation method of the rolling oil comprises the following steps: adding 5-10wt% of fatty acid and 3-5wt% of alcohol into paraffin oil, and uniformly mixing, the aluminum foil for new energy is produced by adopting an asymmetrical rolling process, the mechanical property and the electrical property of the aluminum foil are greatly improved through special cryogenic, asymmetrical rolling and annealing processes, the use performance of the aluminum foil and the yield of a lithium ion battery are greatly improved, the preparation method is simple, the cost is lower, the subsequent coating performance of the battery aluminum foil is better, and the application prospect is wide. And the prepared new energy battery is better in character.

The utility model relates to the technical field of paraffin oil recovery, and discloses an automatic paraffin oil separation and extraction device which comprises a distillation retort, a heating box is fixedly connected to the bottom of the distillation retort, an electric heater is arranged on the inner side of the heating box, and a drainage tank is fixedly installed at the top of the distillation retort. A conveying pipe is fixedly installed on the outer side of the drainage tank, a connecting flange is fixedly installed at the bottom end of the conveying pipe, an air inlet pipe is fixedly installed at the bottom of the connecting flange, and a condenser is fixedly connected to the bottom of the air inlet pipe; through the arrangement of the distillation retort, a paraffin oil raw material can be conveniently distilled and separated, the boiling point of paraffin is about 370 DEG C and the boiling point of oil is about 150 DEG C under normal pressure, the paraffin and the oil can be separated by gradually increasing the temperature, and the gasified oil enters the condenser through the transmission pipe to be liquefied, so that the paraffin oil can be recycled. Paraffin and oil mixtures are thus separated.

The invention relates to a preparation method of molecular biological grade high-melting-point light paraffin oil. The method comprises the following steps: S1, removing interfering substances in the light paraffin oil by using stearic acid; s2, washing and drying; s3, kaolin adsorption; s4, separating; and S5, verifying the performance. The high-melting-point light paraffin oil prepared through the scheme has the characteristic of being capable of being solidified at the normal temperature, meanwhile, liquid in a fluorescent PCR amplification tube can be effectively sealed, the stability of an amplification system is ensured, and the fluorescent PCR amplification result is not affected. The high-melting-point light paraffin oil can be applied to full-automatic fluorescent PCR amplification equipment, so that a mechanical arm for opening and closing a PCR tube cover is omitted, the equipment size is reduced, and the equipment cost is reduced.

The utility model provides a heavy-load transverse moving system, which belongs to the technical field of bridge construction and comprises a stabilizing structure, a sliding structure and a power structure. The stabilizing structure comprises a tower top cross beam and a wind cable; the sliding structure comprises a slideway, a sliding trolley, a polyfluortetraethylene plate and a limiting pulley; the power structure is arranged to be jack-finish rolling deformed steel bar tensioning equipment. A tower top cross beam and a wind cable are adopted as a heavy-load transverse movement stabilizing structure, so that the stability of a heavy-load transverse movement system is effectively guaranteed; paraffin oil is smeared between the sliding way and the sliding rail of the sliding trolley and between the polyfluortetraethylene plate and the stable structure for lubrication, so that stable, constant-speed sliding and flexible sliding of the sliding structure are guaranteed. The cross-core jack and the matched high-pressure oil pump equipment are adopted as a transverse moving traction power structure, so that the sliding structure is effectively ensured to be uniform in speed and smooth without being clamped during transverse moving.

The invention discloses a ceramic / carbon multiphase structure thin film material and a preparation method and application thereof, and relates to the technical field of ceramic material preparation. The preparation method of the ceramic / carbon multiphase structure thin film material comprises the following steps: taking a ceramic material as a sputtering target material, carrying out magnetron sputtering on a substrate containing a paraffin oil layer on the surface, and forming a first composite film on the substrate, the first composite membrane comprises a polymer gel membrane formed by cross-linking paraffin oil and a ceramic membrane positioned on the polymer gel membrane; immersing the substrate containing the first composite membrane on the surface into petroleum ether, standing for 2-12 hours, and stripping off the substrate to obtain a second composite membrane; and sintering the second composite film in an inert atmosphere to obtain the ceramic / carbon multiphase structure film material. Limited sintering of ceramic material particles is achieved through the polymer gel film, crystal grains are refined, the sintering temperature is reduced, and energy is saved.