7results about How to "Add channel" patented technology

The application provides a self-catalytic reformer based on a 3D printing technology and a manufacturing method thereof, and the method comprises the following steps: S1, respectively taking nickel-based alloy powder and / or iron-based alloy powder and nickel-aluminum alloy powder, mixing the powders uniformly in a mixing device to obtain printing powder; S2, using three-dimensional drawing software to obtain a shell structure with a reserved cavity; S3, using porous design software to obtain a porous structure, and the porous structure is matched with the reserved cavity of the shell structure; S4, 3D printing the self-catalytic reformer: taking the printing powder in step S1 and adding the powder into a powder supply bin of a 3D printer, then respectively taking the shell structure in step S2 and the porous structure in step S3 and introducing the structures into the 3D printer, and using 3D printing technology to print an integrally formed self-catalytic reformer. The self-catalytic reformer is obtained by the above method. The structure and function are integrated, no additional catalyst is needed, the catalytic efficiency is improved, and the production cost is reduced.

The application discloses a treatment system for treating strongly complexed heavy metal wastewater in an electroplating industry, comprising an oxidation reaction tank, a Fenton-like reaction tank, a homogenizing adjusting tank, a chemical mixing tank, a No. I flocculation tank, a No. I sedimentation tank, a heavy metal adsorption tank, a No. II flocculation tank, a No. II sedimentation tank and a clean water tank which are connected in sequence; wherein, the bottom of the No. II sedimentation tank is provided with two sludge discharge ports, one of which is connected with the heavy metal adsorption tank through a sludge backflow pipeline, and the other is connected with a regeneration system. The application also discloses a method for treating strongly complexed heavy metal wastewater in the electroplating industry based on the treatment system. The method adopts the process of first oxidizing and breaking the complex, then adding alkali to precipitate, and finally modifying zeolite to adsorb, so that the electroplating strongly complexed heavy metal wastewater can be treated, the concentration of heavy metal ions in the effluent can be stably reduced to below 0.1 mg / L, and the discharge standard can be reached.

A method for preparing a hydrodemetallization catalyst, belonging to the field of catalyst preparation technology, includes the following steps: impregnating spherical carbon particles with an iron-containing solution and drying them; mixing the dried carbon particles uniformly with alumina sol and forming droplets; drying and calcining the formed products to obtain an iron-modified alumina support; immersing the iron-modified alumina support in an organic ammonium solution for a first and second hydrothermal treatment; drying and calcining the treated products to obtain a treated alumina support; impregnating the treated alumina support with an active component impregnation solution; drying and calcining the impregnated support to obtain the hydrodemetallization catalyst. The catalyst prepared by this method exhibits high dehydrogenation, Ni removal, and V removal activity, while also possessing high tolerance for metal impurities. This catalyst is particularly suitable for the hydrotreating of heavy oil with high Ni impurity content.

The application discloses an optical amplification and combining and separating wave circuit for converging and separating equipment and a device thereof, relates to the technical field of converging and separating equipment, and the optical amplification and combining and separating wave circuit comprises a wavelength selection switch module, an EDFA amplification circuit module, an MCU control module and a power module for providing working voltages for the modules, the wavelength selection switch module is connected with the MCU control module in communication through a serial interface, the EDFA amplification circuit module is connected with the MCU control module in communication through a serial interface, and the MCU control module is connected with an external network controller in data interaction through an SPI protocol. The application provides an optical amplification and combining and separating wave circuit capable of improving scheduling flexibility and expansibility, reducing system complexity and cost.

This invention belongs to the field of concrete pavement paving technology, specifically referring to a paving device for cement concrete pavement in highway construction. It includes a paving machine, a material distribution box fixedly connected to one side of the paving machine, side material distribution rollers rotatably connected to the inner walls of both sides of the material distribution box, and swing blades movably connected in a circular array on the side material distribution rollers. Main material distribution rollers are fixedly connected coaxially to the side material distribution rollers on both sides. A turning guide rail is fixedly connected in a linear array to the inner wall of the material distribution box. This invention breaks up internal lumps in the concrete while simultaneously shoveling and scattering the bottom layer of concrete. It also drives the swing blades to rotate and push materials. When encountering unbroken lumps or large stones, impurities are discharged, preventing them from mixing into the paving layer and causing defects such as hollow areas and cracks in the pavement. The side material distribution rollers rotate synchronously with the rotating disc, achieving reciprocating compaction of the concrete pavement edges. After compaction and resetting, the upper concrete is extracted to fill the edge gaps.

The application provides a gas distribution cavity and a processing equipment of a semiconductor device. The gas distribution cavity comprises a gas inlet, an upper cover plate and a plurality of gas outlets. The lower surface of the upper cover plate extends at least one guide vane, the guide vane is arranged around the gas inlet, the upper surface of the upper cover plate is provided with a plurality of mounting holes, the plurality of mounting holes extend into the guide vane and are used for mounting a first heating element. The plurality of gas outlets are uniformly arranged around the edge of the gas distribution cavity.

This invention discloses a hierarchical porous alumina material, its preparation method, and its application. The alumina material has a spherical core-shell structure, with mesoporous alumina as the core and macroporous alumina as the shell. The pore size distribution of the alumina material exhibits hierarchical pore distribution characteristics, wherein the pore volume of 6-15 nm pores accounts for 20% to 50% of the total pore volume, and the pore volume of pores larger than 20 nm accounts for not less than 40% of the total pore volume. The preparation method of the hierarchical porous alumina material includes the following steps: (1) calcining boehmite to obtain alumina particles; (2) mixing and dispersing surfactant, hydrocarbon-containing compound, and alumina particles evenly to obtain a first feed stream; (3) mixing aluminum sol, emulsifier, curing agent, and additives evenly to obtain a second feed stream; (4) mixing the first and second feed streams, and then further molding, aging, extraction, washing, drying, and calcining to obtain an alumina composite material. The alumina material of this invention is suitable as a carrier for preparing heavy oil hydrogenation catalysts with hierarchical pores and acidic distribution, and can be further used in heavy oil hydrogenation processes.