7 results about "Fine dispersion" patented technology

The application relates to the technical field of high-viscosity material dispersion equipment, and discloses a double-planetary dispersion feeder, which comprises a material bucket, the bottom of the material bucket is provided with a movable base, a support frame for stably supporting the material bucket is arranged between the bottom of the material bucket and the movable base, the upper part of the material bucket is provided with a bucket cover, the inside of the bucket cover is provided with a planetary gear box, and the planetary gear box is internally provided with a planetary gear transmission mechanism. In the process that the dispersion shaft performs composite motion, the internally arranged hydraulic telescopic rod can drive the telescopic inner rod to move up and down, so that the middle shear plate fixedly connected with the sliding block is lifted between the rough shear plate and the fine shear plate, the interval of the shear layer is dynamically adjusted, and the process rigidification problem caused by the fixed dispersion plate in the prior art is fundamentally solved. The equipment can dynamically adjust the interval of the shear plates in real time and on line according to different stages of material from wetting to fine dispersion, so that the shear strength required by different formulas and processes can be automatically matched.

The invention relates to the technical field of asphalt preparation, in particular to modified asphalt preparation equipment and method.The preparation method comprises the following steps that S1, matrix asphalt is pretreated; s2, premixing a composite modifier; s3, carrying out gradient high-speed shearing; s4, carrying out anti-aging modification; the distributed high-speed shearing equipment in the step S3 comprises an equipment body, a machine body shell, a fixed rotating blade, a movable rotating blade and a plurality of flow deflectors, the fixed rotating blade is fixed to a shearing shaft, and the movable rotating blade is arranged in a sliding mode in the axial direction of the shearing shaft; the multiple flow deflectors are arranged around the outer ring of the bottom of the shearing shaft; according to the preparation method, the dispersion uniformity of the modified asphalt is remarkably improved, the anti-aging performance is greatly optimized, a conventional shearing mode of a single rotating speed is broken through, a gradient process of rough shearing and fine shearing is adopted, large particles are crushed in the rough shearing process, multiple added raw materials are effectively mixed, and fine dispersion is performed in the fine shearing process, so that the production efficiency is remarkable, and the production cost is reduced.

This invention relates to the field of continuous internal mixing and extrusion equipment technology, and discloses a three-rotor continuous internal mixing and extrusion equipment, including a mixer housing, rotors one, two, and three arranged side by side in the mixer housing, a feed port on the mixer housing, and a drive mechanism. Through axial partitioning of "conveyance, pre-dispersion, high-pressure crushing, and homogenization," the conveying function and the ultra-fine dispersion function are decoupled in physical space. The second mixing zone can focus on establishing an extreme shear environment sufficient to break up stubborn carbon black agglomerates, while the first mixing zone and the mixing output zone ensure a high-throughput, stable supply and output of materials. This solves the inherent contradiction in traditional twin-rotor / twin-screw masterbatch production where "increasing blackness requires sacrificing output," enabling continuous and stable production of uniformly dispersed, high-blackness, and crystal-point-free masterbatch with high capacity. The optimized rotor configuration reduces unnecessary shear heat generation and pressure backflow losses, allowing energy to be more concentrated on the effective pigment dispersion process.

The utility model discloses a scattering device for graphene preparation, and relates to the technical field of pay-off, the scattering device comprises a crushing box, a crushing mechanism is arranged in the crushing box, a high-speed dispersing mechanism is arranged in a dispersing box, and the output end of a second motor is connected with a rotating shaft. Through the arrangement of the crushing mechanism and the high-speed dispersion mechanism, the crushing mechanism primarily crushes and disperses graphene raw materials through mechanical force, mainly aims at large aggregates and particles, the high-speed dispersion mechanism serves as a second defense line, and the leaked fishes are dispersed again through high shear force and impact force, so that the large aggregates and particles are dispersed again. All agglomerated graphene raw materials can be thoroughly dispersed, the dispersion effect of the graphene is remarkably improved through a dual dispersion mechanism, the particle size distribution of graphene particles is more uniform through the continuous action of preliminary dispersion and fine dispersion, the agglomeration phenomenon is effectively restrained, and the product quality is improved. Therefore, the dispersity and the reinforcing effect of the graphene in the composite material are improved.

This invention discloses a smelting process for high-carbon content superalloy ingots with dispersed carbide distribution. Specifically, the process involves: weighing nickel-based superalloy raw materials, including electrode C, metallic Cr, Co plates, Mo strips, Al beads, sponge Ti, NiB master alloy, and Ni plates; subjecting the nickel-based superalloy raw materials to vacuum induction melting to obtain a vacuum induction ingot; sawing the head of the vacuum induction ingot, polishing the surface, and then using it as an electroslag remelting electrode for remelting and refining to obtain an electroslag remelted ingot; and finally, vacuum arc remelting to obtain a high-carbon content superalloy ingot. In the vacuum arc remelting process of this invention, a larger remelting current is used, creating a narrower paste-like region, reducing the local cooling time of the alloy, and improving the fine dispersion of carbides.

The invention relates to a superfine dispersed illite composite polyacrylic resin emulsion and a preparation method thereof, and belongs to the technical field of fine chemical engineering. The illite is a common clay mineral and has unique structure and performance. According to the characteristics, the invention aims to develop a novel material with specific performance. Firstly, organic illite is obtained through a chemical intercalation method and a surface modification method; a specific acrylic resin monomer is selected for dispersion. And then adding a silane coupling agent to obtain the compound dispersion containing the ultrafine dispersed illite and the acrylic resin monomer. And finally, synthesizing the emulsion by taking the compound dispersion as one of synthetic monomers and adopting a general synthesis method. According to the invention, the problem of non-uniform dispersion of illite in the acrylic resin emulsion is solved, the dispersion uniformity and storage stability of the emulsion are improved, and a new thought and method are provided for preparing a high-performance composite resin emulsion material.