9results about How to "Achieve spatial separation" patented technology

The application discloses a two-dimensional acceleration sensor based on a ring-shaped weak coupling structure and relates to the technical field of weak vibration signal detection. The two-dimensional acceleration sensor comprises a center support structure, a ring-shaped weak coupling structure, a cantilever beam plus mass sensitive detection structure and a piezoelectric excitation and detection unit. The center support structure supports the ring-shaped weak coupling structure through elastic spokes, the ring-shaped weak coupling structure is composed of an inner ring, an outer ring and a coupling beam connecting the two, the piezoelectric excitation unit is arranged on the inner ring for generating in-plane traveling wave vibration, and a plurality of cantilever beam plus mass sensitive units are symmetrically distributed along the outer ring in the circumferential direction. The application constructs a ring-shaped weak coupling vibration energy network, realizes the propagation and redistribution of vibration energy among the plurality of sensitive units, separates the excitation and detection regions in space, effectively improves the weak acceleration detection sensitivity, reduces excitation crosstalk and realizes the decoupling detection of two-dimensional acceleration, and is suitable for the fields of high-precision inertial measurement and weak vibration monitoring.

The utility model discloses a kind of operation systems for steel metallurgical industry mixing iron furnace area, comprising: a high corridor;A sampling platform is obtained by being outwardly extended and being arranged from high corridor, and is located the top of track;A lifting baffle, it is located at the front end of tank car direction of one side edge of sampling platform and is set;A sampling groove, it is strip long groove on sampling platform along the extension direction of track, the edge of sampling groove is provided with scale and track along its extension direction;A slider, it is the block structure with through hole in center, it is arranged across sampling groove, for sliding in two tracks correspondingly;Lifting baffle is used to give the guidance of tank car parking position for lowering;Slider is used to move to the best area of sampling according to scale;Sampling rod, vertically insert into the ladle of tank car through the center through hole of slider to sample down.It solves the problem of poor safety of existing mixing iron furnace area work, inconvenient sampling.

This invention relates to the field of materials technology, and more particularly to a 3D-printed, internally hollowed-cone solar interface evaporator with directional salt deposition function, its preparation method, and its application. The invention includes step 1: three-dimensional model construction; step 2: substrate surface pretreatment and chemical activation; and step 3: hydrothermal preparation of a Co-Bi-S coating. This invention uses a 3D-printed porous, internally hollowed-cone resin device as a substrate, and grows a Co-Bi-S coating in situ on its surface using a hydrothermal method. This coating exhibits both excellent photothermal conversion performance and corrosion resistance. The evaporator structure is designed as a porous, internally hollowed-cone shape, which provides a larger evaporation area, stronger light capture and focusing capabilities, and can achieve higher evaporation temperatures and directional salt deposition effects. The prepared solar interface evaporator exhibits excellent photothermal conversion performance and water evaporation efficiency, and also demonstrates good structural stability and corrosion resistance. This solves the technical problems of low photothermal conversion efficiency and poor stability in high-salt environments inherent in traditional solar evaporators, making it suitable for applications such as seawater desalination.

The utility model relates to a kind of sound insulation building board of convenient assembly, including one building board and second building board, and connecting assembly is installed between one building board and second building board;The connecting assembly includes the connecting strip installed between one building board and second building board, the left and right sides of the connecting strip are fixedly installed with sealing strip, and the inside both ends of the connecting strip are provided with installation cavity, and the inner wall of two installation cavities is fixedly installed with top hat.The sound insulation building board of convenient assembly, by the sound insulation coating on the surface of one building board, second building board realizes sound insulation and noise reduction function, simultaneously, the ingenious design of connecting strip, sealing strip, snap element and other components in connecting assembly, not only can be quickly, closely and stably connected two building boards, ensure connection strength and overall stability, but also sealing performance is enhanced by sealing strip to further improve sound insulation effect, can effectively realize space division, support and good sound insulation effect in building application.

The application provides a wear-resistant cable for a robot joint and a preparation method thereof, and the preparation method comprises the following steps: surface modification is performed on nano zinc oxide to obtain first nano zinc oxide containing amino groups on the surface; the first nano zinc oxide is mixed and reacted with a styrene-maleic anhydride copolymer, so that the amino groups on the surface of the first nano zinc oxide react with maleic anhydride groups of the styrene-maleic anhydride copolymer to form amide bonds, and a pre-dispersion is obtained; SEBS, silane-grafted EVA, polyurethane elastomer, the pre-dispersion, SEBS-g-MAH and an additive are mixed and extruded, and are coated on the outside of a cable core wire; and the extruded cable is subjected to post-crosslinking, so that the gel content of the silane-grafted EVA reaches 35-75%.

The application relates to the technical field of transfer trolleys, and discloses a shared bicycle transfer trolley, which comprises a trolley compartment, a storage platform arranged in the trolley compartment, at least two trays horizontally arranged on the storage platform and used for carrying shared bicycles, a lifting tail plate assembly arranged outside the tail part of the trolley compartment and provided with a guiding and positioning structure, which can make the multiple trays removed from the trolley compartment be stacked and positioned in a vertical direction on the lifting tail plate assembly, a horizontal moving mechanism used for driving the trays to move horizontally between the storage platform and the lifting tail plate assembly, and a lifting mechanism used for driving the lifting tail plate assembly to lift so that any tray is flush with the corresponding storage platform in the trolley compartment. The guiding and positioning structure ensures the position accuracy of the trays when the trays are in or out, and avoids butt joint deviation and jamming. The multiple trays are vertically stacked on the lifting tail plate assembly, so that one lifting stroke can serve the loading of the multiple trays, and the flow efficiency is obviously improved.

The invention discloses preparation and uranium separation application of a magnetic element doped cerium dioxide photocatalyst with a spin polarization effect, and belongs to the technical field of rare earth oxides, and the preparation method comprises the following steps: stirring metal nitrate or metal chlorine salt, cerium salt and a mineralizing agent in an aqueous solution until the materials are uniformly mixed, transferring the mixture into a reaction kettle for a hydrothermal reaction, and drying to obtain the magnetic element doped cerium dioxide photocatalyst with the spin polarization effect. Centrifuging, washing and drying, and collecting precursor solid powder; uniformly grinding the precursor solid powder, calcining in an atmosphere furnace, and cooling to room temperature to obtain the magnetic element doped cerium dioxide photocatalyst with the spin polarization effect. The magnetic element doped cerium dioxide photocatalyst with the spin polarization effect prepared by the invention has relatively high uranium separation and removal efficiency and relatively good catalytic stability for separating and removing uranyl ions in complex uranium mine wastewater.

The application relates to the field of spraying technology and discloses a high-precision surface spraying device, which comprises a spraying cabinet body and a liquid adding cabinet. A pressure bucket one is fixedly arranged in the spraying cabinet body. A spraying mechanism is arranged on the upper portion of the spraying cabinet body. The spraying mechanism is connected with the pressure bucket one through a pipeline. A pressure bucket two is fixedly arranged on the upper surface of the liquid adding cabinet. The pressure bucket two is connected with the pressure bucket one through a liquid supplementing pipeline. The pressure bucket two is independently arranged as a large-capacity liquid supplementing storage tank and is connected with the pressure bucket one, so that the liquid supplementing and the spraying operation are separated in space. The rotation mechanism of one bucket for supplying liquid and one bucket for supplementing liquid eliminates the time window of forced shutdown caused by adding liquid, avoids the flow fluctuation of the initial section of the spray head and the surface scratch defects of a workpiece caused by shutdown and restart, and guarantees the continuous operation of a production line.

The invention discloses a C3N5-C3N4 photocatalytic hydrogen evolution material as well as a preparation method and application thereof. The material consists of a core layer, a shell layer and an interface transition region, wherein the core layer is C3N5 rich in S-O bonds; the core layer is coated with the shell layer, the shell layer is C3N4 with gradient increasing nitrogen vacancy concentration from inside to outside, and CoP nanoparticles are loaded on the surface of the shell layer; and the C / N atomic ratio in the interface transition region is in continuous gradient change to form a built-in electric field gradient. The preparation method comprises the following steps: preparing a C3N5 core layer through pyrolysis of a sulfur-containing precursor; coating a C3N4 precursor on the surface through solvothermal reaction; carrying out heat treatment in a gradient ammonia atmosphere, carrying out synchronous crystallization and introducing gradient nitrogen vacancies; and finally, loading CoP through photodeposition. The material has spatially separated light absorption, charge transfer and reaction centers, shows excellent hydrogen evolution activity and stability under visible light, and is suitable for the field of photocatalytic hydrogen production.