9results about How to "Low solid content" patented technology

The application relates to a YAG / Yb:YAG / YAG composite laser transparent ceramic and a preparation method thereof. The Yb:YAG water-based ceramic ink comprises mixed powder composed of Al2O3 powder, Y2O3 powder and Yb2O3 powder, the solid content is 20-25 vol%, the mole ratio of Al2O3, Y2O3 and Yb2O3 is 5:3-x:x, and 0 < x <= 0.3; the dispersant content is 0.2-0.8% of the mass of the mixed powder; the pH control agent is used in an amount controlled to adjust the pH of the Yb:YAG water-based ceramic ink to be between 10-11.5 and the pH of the ink is greater than or equal to 9.5 within 24 hours under the conditions of sealing and 20-25 DEG C; the humectant content is 5-20% of the total volume of the Yb:YAG water-based ceramic ink; the binder content is 0.1-0.5% of the mass of the mixed powder; and the sintering aid content is 0.1-0.5% of the mass of the mixed powder.

This invention discloses a load 32 The preparation method of the ultrathin sheet-like chitosan hydrogel applicator of P includes: (1) preparing a chitosan aqueous solution; (2) adding methacrylic anhydride to the chitosan aqueous solution to obtain methacrylated chitosan; (3) preparing a methacrylated chitosan aqueous solution; (4) adding 2-hydroxy-4′-(2-hydroxyethoxy)-2-methylphenylacetone to the methacrylated chitosan aqueous solution to obtain a chitosan hydrogel precursor solution; (5) coating the inner wall of a polytetrafluoroethylene mold with a superhydrophilic coating; (6) adding Na2H 32 PO4 aqueous solution and chitosan hydrogel precursor solution are added to the mold, stirred and then cured by light; (7) the cured hydrogel is taken out and sealed between two layers of transparent tape. This application can prepare an ultra-thin hydrogel applicator, thereby reducing the obstruction of radiation by the hydrogel material itself and enhancing the therapeutic effect of the applicator.

This invention discloses a flash deodorization method for lanolin, belonging to the field of lanolin refining technology. The method includes: S101: dissolving crude lanolin in 4-6 times its volume of anhydrous hot ethanol, then sending it to the upper part of a vacuum flash evaporator and spraying it downwards; S102: introducing hot nitrogen gas at a temperature of 95-105℃ into the lower part of the vacuum flash evaporator, with the nitrogen gas in countercurrent contact with the crude lanolin spray solution; S103: after circulating and spraying the crude lanolin in the vacuum flash evaporator for a certain period, sending it to a first oil-water separator for cooling, separating the ethanol to obtain lanolin. The exhaust gas from the vacuum flash evaporator is sequentially sent to a power wave tower, a condenser, a gas-liquid separator, and a vacuum device; anhydrous ethanol is circulated and sprayed in the power wave tower, with the spray solution temperature at 45-50℃. This patented method can deodorize lanolin to odorless levels and also has the advantages of significantly reducing color and achieving a high yield.

This invention provides a method for the resource utilization of potassium-containing metallurgical solid waste. The method comprises seven steps: ash transportation and storage, pulping, leaching, filtration, carbon removal, water treatment, water storage, and irrigation. This invention achieves a potassium removal rate of over 95% and a sodium removal rate of over 89% after treating the potassium-containing metallurgical solid waste. The leaching residue is recycled in the sintering process of the metallurgical industry, reducing the alkali content of the sintered ore, improving the efficiency of blast furnace ironmaking, and realizing the low-cost recovery and effective utilization of potassium resources from potassium-containing metallurgical solid waste.

The invention provides a method for producing a high-yield clean aromatic-rich raw material, the clean aromatic-rich raw material and a system for producing the high-yield clean aromatic-rich raw material, in the method, atmospheric and vacuum distillate oil is added into catalytic slurry oil, so that not only can a dilution effect be achieved, but also a dissolution effect can be achieved, and after the catalytic slurry oil is dissolved, the high-yield clean aromatic-rich raw material is obtained. Solid particles adsorbed on aromatic-rich components, colloid and asphaltene in the catalytic slurry oil are dissolved and dispersed, filtering is easy, light components and concentrated aromatic-rich components can be removed through subsequent distillation of solid-removed slurry oil, and the finally obtained clean aromatic-rich raw material is low in solid content and high in aromatic hydrocarbon content by combining the steps of hydrofining and the like. The catalyst can be used as a raw material for producing mesophase pitch or petroleum coke or chemical products. The method for producing the high-yield clean aromatic-rich raw material provided by the invention has no limitation on solid particles and the content of the solid particles in the oil slurry, and also can be used for processing catalytic oil slurry of a high-solid and high-viscosity system.

This application discloses a graded recycling and reuse system for demister flushing water, relating to the field of wet desulfurization. The system includes an absorption tower, a secondary recovery system, and a primary recovery system. The absorption tower is equipped with multiple demister mechanisms. The secondary recovery system includes a clarifier connected to the upper demister for clarifying low-solids-content water. Two second branches are formed at the clarifier's outlet; one branch discharges gypsum sludge settled at the bottom of the clarifier, and the other branch connects to the upper demister. The primary recovery system includes a hydrocyclone connected to the outlet of the lower demister. Two first branches are formed at the hydrocyclone's outlet; one first branch connects to the absorption tower to transport high-solids-content water, and the other first branch connects to the clarifier and merges with the rear end of the secondary recovery system. This application grades the effluent slurry from the upper and lower demisters, effectively improving clarification efficiency.

This invention provides a paste filling system and method based on a conventional high-efficiency thickener and filter press, belonging to the field of mine tailings filling technology. The system includes a thickening unit, a diversion pipeline, a filter press unit, a mixing unit, and a conveying unit. This invention initially concentrates low-concentration tailings slurry to obtain a high-concentration underflow, which is then divided into two streams. One stream is processed into a low-moisture filter cake by the filter press unit, while the other stream remains as a high-concentration underflow. Subsequently, two-stage mixing and stirring are performed to prepare the filling paste, which is then conveyed to the filling area. Through a concentration adjustment process of diversion-filter press-remixing and a homogenization process of two-stage stirring and step-by-step feeding, this invention replaces traditional deep cone thickeners or vertical sand bins, solving the problems of high cost, easy rakeing, high overflow solids content, and large concentration fluctuations in existing systems. It achieves precise control of paste concentration, stable and reliable system operation, and a significant reduction in filling costs.

The invention discloses a sewage filtering device which comprises a sewage feeding pump, a heat exchanger communicated with the sewage feeding pump, and a filter arranged between the sewage feeding pump and the heat exchanger and used for filtering sewage entering the heat exchanger. According to the sewage filtering device, the filter is additionally arranged in front of the sewage feeding pump and the heat exchanger, so that the hydrocarbon substances and the solid content in sewage are reduced, the operation period of the sewage stripping tower is prolonged, and it is guaranteed that the COD of purified water is within the index range.

This utility model discloses a manure dewatering treatment device for livestock farms, relating to the technical field of dewatering equipment. The utility model includes a dewatering tank, with a centrifugal dewatering component fixedly connected to the bottom of the tank, and a filter press component fixedly connected to the top of the centrifugal dewatering component. This utility model employs a composite process of "filter press pretreatment + centrifugal deep dewatering." The filter press component uses a hydraulic telescopic rod to drive a pressure plate to initially compress the manure, effectively separating large particles and discharging free water, reducing the manure's moisture content. This provides high-quality material with low load and high solids content for subsequent centrifugal treatment. The drive motor of the centrifugal dewatering component drives the centrifugal tank to rotate at high speed, further separating the filtered material using a filter cloth. Centrifugal force throws out colloidal water and fine particles, ultimately further reducing the solid phase moisture content, meeting the requirements for resource utilization such as composting and organic fertilizer production.