7results about How to "Efficient detachment" patented technology

A purification method of electronic-grade hafnium tetrachloride comprises the following steps: S1, loading crude product hafnium tetrachloride into a quartz boat under the protection of inert gas, and then putting the quartz boat into a purification system, S2, starting a vacuum pump, and vacuumizing the purification system until the vacuum degree is 10 <-3 >-10 <-1 > Pa; s3, the temperature of the tubular heating reaction furnace is increased to 100-220 DEG C at the heating rate of 10 DEG C / min; s4, preserving the heat of the tubular heating reaction furnace for 8-15 hours; keeping the vacuum degree of the purification system at 10 <-3 >-10 <-1 > Pa, and carrying out sublimation purification; and S5, the temperature of the purification system is reduced to the room temperature, the purification system is in butt joint with a glove box, inert gas protection is carried out, a condensation material collector is detached, powder is collected and sealed in a pressure container, and the electronic-grade hafnium tetrachloride is obtained. By adopting the method, the purity of the hafnium tetrachloride product reaches 5N and 6N.

This utility model discloses an easy-to-clean smoke exhaust valve, relating to the field of smoke exhaust valve technology. The utility model includes an U-shaped cleaning frame, inside which a valve body is fixedly installed. A movable filter assembly and a flushing and cleaning assembly are disposed between the U-shaped cleaning frame and the valve body. A collection assembly is provided on one side of the filter end of the movable filter assembly. This utility model drives the filter end via a drive end, allowing the filter end inside the valve body to continuously move into the U-shaped cleaning frame, while the filter end inside the U-shaped cleaning frame continuously moves into the valve body. During this process, the flushing and cleaning assembly washes and cleans the dust accumulated on the filter end. This arrangement ensures that the airflow rate of the valve body is not affected by dust and impurities accumulated on the filter end, and that only the drive end needs to be activated to clean the accumulated dust and impurities on the filter end.

The invention relates to the technical field of photocatalytic materials, and discloses an aromatic biguanide covalent organic framework material which is obtained by carrying out C-N coupling reaction on an organic framework material containing halogen atoms and an aromatic biguanide compound, wherein the molar ratio of the organic framework material containing halogen atoms to the aromatic biguanide compound is 1: (7.5-15). The covalent organic framework material rich in aromatic biguanidyl is constructed by adopting side chain engineering, drug micropollutants in a water body can be efficiently catalyzed under the irradiation of visible light, meanwhile, in-situ photocatalytic self-cleaning is realized, a degradation product can be effectively separated from pore channels and surfaces of the aromatic biguanidyl covalent organic framework material, active sites are released, and the photocatalytic self-cleaning effect is achieved. The steps of organic solvent elution and the like are avoided, and a certain reference effect is provided for design and development of efficient green photocatalysts.

The utility model discloses a residual cement paste separation type concrete waste recycled aggregate pretreatment device, relates to the technical field of concrete waste, and aims to solve the problems that a traditional concrete waste treatment mode is high in energy consumption, and cement paste is left on the surface of part of aggregate. The mud separating assembly comprises a servo motor, a power output shaft of the servo motor is connected with a driving gear through a coupler, the bottom end of the driving gear is movably connected with the front end of the separating barrel, the outer side of the driving gear is movably connected with a linkage gear ring, and the inner side of the linkage gear ring is fixedly connected with a telescopic pipe. The end, away from the linkage gear ring, of the telescopic pipe is fixedly connected with a separation ball barrel. The residual cement slurry separation type concrete waste recycled aggregate pretreatment device disclosed by the utility model has the technical effects that the concrete waste is fully turned and stirred, the surface slurry separation can be efficiently realized, and the treatment efficiency and quality are improved.

The invention relates to a high-purity honey production line, comprising a plurality of groups of bearing mechanisms evenly spaced along a conveying direction of a conveying mechanism, wherein a beeswax scraping station, a beeswax transferring station and a honey collecting station are sequentially arranged along the conveying direction of the conveying mechanism; the bearing mechanism comprises a clamping component for clamping a honey board and turning it 180 degrees at the wax scraping station, a wax collecting component for temporarily collecting the beeswax scraped off the honey board and transferring and turning it 90 degrees along a fixed track at a wax block transferring station, a filtering component for filtering the honey dripping from the honey board, and a spreading component for adding crushed osmanthus to the honey dripping from the honey board; the invention can efficiently and quickly separate and collect honey from the honey board, and the honey is filtered at a faster rate in the filtering component and is not easily clogged, thereby greatly improving the filtering efficiency of the honey, thereby solving the problem of low filtering efficiency of the honey due to high viscosity of the honey.

The application discloses an elevator safety detection system and method, which comprises a magnetic grid scale belt break detection device and a leveling detection device. The magnetic grid scale belt break detection device comprises a support assembly, a counterweight component and a belt break detection assembly. When the magnetic grid scale belt breaks, the counterweight component drives the belt break detection assembly to move to compress the elastic assembly. The leveling detection device comprises a leveling detection assembly, a guide sleeve and a valve core. When the valve core is separated from the leveling detection assembly, the leveling detection assembly can slide from a standby position to a working position. In the early stage of the magnetic grid scale belt break, the counterweight component can push the belt break detection assembly to move to compress the elastic assembly to buffer the impact formed by the counterweight component. In the late stage of the magnetic grid scale belt break, the leveling detection assembly slides to the working position, and the elevator detects whether the car reaches the leveling position through the leveling detection assembly to ensure efficient evacuation of passengers.

The invention relates to the technical field of forming die equipment, and discloses a die-casting forming die with a self-cleaning function, comprising a base which is used as a basic component of the whole device and is used for assembling and bearing each processing mechanism and a lower structural member to which the processing mechanism belongs; and the alkali washing and dissolving mechanism is arranged on the base and used for conducting alkali washing, dissolving and falling treatment on the aluminum metal residues in the mold. By adding and arranging the residue cleaning mechanism, after alkali washing treatment, the interior of the mold can be directly cleaned in a wiping mode through rotation of a sponge base and cooperative operation of a vibration conduction mechanism, metal residues can be more efficiently separated from the inner wall and other parts of the mold through vibration conduction, and the residue cleaning mechanism and the residue cleaning mechanism supplement each other; the separation speed of the metal residues is remarkably increased, the separation effect is greatly improved, the thoroughness of cleaning in the mold is ensured, and the adverse effect of the residues on the mold and the subsequent die-casting process is effectively reduced.