4results about How to "Sufficient precipitation" patented technology

The application provides a process for recycling aramid spinning flush material, and belongs to the technical field of high-risk solid waste recycling, and aims to solve the technical problem that PPTA resin is easy to degrade during neutralization and washing recovery.The recycling process comprises the following steps: (1) collecting aramid spinning flush material lumps and cooling at low temperature; (2) soaking the cooled flush material lumps in ice water / ice slurry, replacing the ice water / ice slurry for multiple times until the leaching liquid is weakly acidic and stable; crushing the flush material lumps; (3) soaking the crushed flush material lumps in weakly alkaline ice water / ice slurry to neutralize residual acid, and then crushing the flush material lumps again by using a crushing device, and washing, drying and obtaining recycled PPTA resin particles.The application realizes harmless treatment and resource utilization of the aramid spinning flush material containing a large amount of sulfuric acid and aramid resin generated during aramid spinning, improves economic benefits and reduces environmental pollution.

This invention belongs to the field of dressing preparation technology, specifically relating to a mussel protein dressing with anti-inflammatory, antibacterial, moisturizing, repairing, and wound-healing effects, and its preparation method. The invention comprises the following raw materials by weight: 15-25 parts mussel adhesive protein ferment, 2-5 parts reed extract, 6-10 parts geranium extract, 4-8 parts mannitol, 10-15 parts glycerin, 0.6-1 part sodium chloride, 0.2-0.5 parts p-hydroxyacetophenone, 1-2 parts 1,2-hexanediol, 0.05-0.1 parts ectoine, and 100-200 parts water. This invention utilizes a specific combination of mussel adhesive protein ferment, reed extract, and geranium extract to facilitate the synergistic effect of each active substance and fully release its efficacy. Therefore, the technical solution of this invention has the advantages of more comprehensive functions and more significant effects, enabling anti-inflammatory, antibacterial, moisturizing, repairing, and wound-healing effects.

The application relates to the field of reclaimed water reuse, and discloses a reclaimed water reuse percolation filter device which comprises a filter device, a fixed inner cavity is arranged in the middle of the top end of the filter device, a plurality of filter screens are arranged in parallel on the inner cavity, a buffer frame is arranged in the middle of the top end of the filter device, a plurality of water draining holes are arranged in the bottom of the inner wall of the buffer frame, a fixed frame is fixedly arranged on the top of one side of the inner wall of the buffer frame, a collecting hopper is fixedly arranged in the middle of the top end of the fixed frame, a plurality of fixed holes are arranged on the two sides of the outer surface of the collecting hopper, and a wide-mouth cover is integrally arranged on the upper surface of the collecting hopper; the buffer frame, the collecting hopper and the stirring mechanism and other structures are arranged, water flows more stably and slowly through the water draining holes into the filter screens below, the impact force of the water flow on the filter screens is effectively reduced, filter screen damage caused by water flow impact is avoided, the service life of the filter screens is prolonged, the equipment maintenance cost is reduced, the filtering effect of the filter screens is improved, and the purification degree of the reclaimed water is improved.

This invention relates to a high-strength multiphase hot-rolled wire rod for 2300MPa grade stranded wire and its manufacturing method. The method involves rolling high-carbon Mo-V wire rods into wire rods, followed by online molten salt segmented quenching and isothermal treatment. The wire rods undergo a first-stage molten salt treatment with a cooling rate of ≥39℃ / s, transitioning from austenitic to bainitic phase and promoting partial austenite transformation. A second-stage molten salt treatment further increases the molten salt temperature, promoting the decomposition of untransformed residual austenite into sorbite, followed by isothermal tempering. Finally, slow cooling via roller conveyors results in a hot-rolled wire rod with a microstructure consisting of tempered bainite, tempered sorbite, and ferrite, forming a multiphase microstructure. This method enables multiphase microstructure control and online toughening, balancing material cost and production efficiency, achieving a tensile strength of 1552~1602MPa and a reduction of area of ​​32%~38%, thus eliminating the need for offline heat treatment and enabling efficient production of ultra-high-strength stranded wire.