4results about How to "Loose texture" patented technology

The utility model relates to a horizontal screw centrifuge technical field discloses a kind of powder spraying type drying horizontal screw centrifuges, to solve the defect of overcoming the high moisture content of solid phase material of existing horizontal screw centrifuge easy to stick. The utility model is under the centrifugal field by superstrong instantaneous mixing and penetration: in the centrifugal field of up to hundreds even thousands of times gravity acceleration, dry powder particles spouted from powder spout can be "pressed into" the filter cake being extruded by screw conveyor dehydration with very high relative speed, this forced mixing under high G force, far more than ordinary mixer can compare, it can make dry powder instantaneously, uniformly penetrate into the micro-pore structure of filter cake, realize molecular level contact, greatly improve the reaction efficiency and hygroscopic efficiency of drying agent (such as quicklime, fly ash etc.), make the filter cake discharged solid rate significantly improve, and texture loose, uniform.

The application relates to the technical field of PVC heat stabilizer preparation, in particular to a preparation method of a stearate intercalated hydrotalcite anti-zinc-burn PVC heat stabilizer. The method comprises the following steps: synthesizing a magnesium-aluminum hydrotalcite precursor containing carbonates between layers; intercalating and modifying the precursor in an organic solvent by using stearic acid and purifying the stearic acid by using acetone to obtain stearate intercalated hydrotalcite; respectively preparing stearic acid rare earth, zinc acrylate and calcium stearate; mixing the above components and antioxidants and lubricants in kneading equipment, and controlling temperature and moisture content to obtain a final product. Through the synergistic effect of the stearate intercalated structure and the metal soap component, the zinc burning phenomenon in the PVC processing process is effectively inhibited, and the initial coloring property and long-term thermal stability of the material are improved.

The application discloses a preparation method of cordyceps sinensis, and relates to the technical field of medicine preparation. A specific implementation mode of the method comprises the following steps: cooling the cleaned cordyceps sinensis to a first temperature which is lower than a eutectic point, so that the water in the cordyceps sinensis is completely frozen to form ice crystals; performing at least one freeze-thaw cycle, wherein the freeze-thaw cycle comprises the following steps: increasing the temperature to a second temperature which is higher than 0 DEG C, so that the frozen cordyceps sinensis is thawed, and then the temperature is decreased to the first temperature at a second decreasing rate, so that the cordyceps sinensis is re-frozen; placing the cordyceps sinensis in a vacuum environment, and performing at least one pressure change treatment; and performing temperature increasing drying under the vacuum condition, until a predetermined water content is reached. The implementation mode significantly improves the dissolution rate of effective substances when the user takes the cordyceps sinensis, and improves the bioavailability of the cordyceps sinensis; uniform, loose and crisp textures are formed, so that a unique taste of melting in the mouth is brought, and the problem of hard taste and poor palatability of traditional freeze-dried cordyceps sinensis is solved.

The application belongs to the technical field of fossil plasticizing, and provides a method for repairing ancient biological fossils by using a silicon rubber impregnation method and the obtained ancient biological fossils, the method comprises the following steps: damaged fossils and fossil fragments are bonded by using glue to form the original fossil shape; the fossil is immersed in acetone, and after the acetone completely soaks the fossil, the fossil is taken out; vacuum impregnation is immediately performed in silicon rubber; the fossil after vacuum impregnation is sequentially subjected to standing, glue control and repair to obtain a fossil with the original appearance restored; the fossil with the original appearance restored is solidified to obtain a repaired ancient biological fossil. According to the method, the fossil to be repaired and preserved is completely immersed in the silicon rubber, and after solidification, the gaps between all the fossils are bonded into one body, so that the fossils are firmly combined into one body, the texture of the fossils is no longer loose, and the fossils are not prone to fragmentation, large-area vibration and breakage can be avoided during the preservation process, and the fossils are convenient to carry, transport and preserve for a long time.