44results about How to "Adjustable dosage" patented technology

The invention discloses a polluted site underground water processing-soil ex-situ leaching restoration integral method. The method comprises the steps that: extracted underground water is purified by using organic bentonite, and is discharged into a water storage tank and is used in a soil leaching process; with a multilevel wet vibration sieve, stones and coarse sand are separated from soil; a soil suspension liquid obtained by sieving enters a hydrocyclone; fine particles smaller than 0.05mm are processed and discharged into a frame filter press, and pollutants are removed with a thermal desorption method; particles larger than 0.05mm and the coarse sand are delivered into a leaching tank; a leaching liquid is a surfactant solution; stirring and ultrasonic processing are carried out, and standing sedimentation is carried out; upper-layer water phase is subjected to filtering and organic bentonite purification, and is discharged into a dispensing tank; lower-layer soil is delivered into a washing tank; stirring and ultrasonic processing are carried out, and standing sedimentation is carried out; soil phase is discharged into the frame filter press; and the soil reaches a standard and can be backfilled. With the method, underground water and soil synchronous restoration and leaching liquid recycling are realized. The method is easy to realize, and can be widely applied. The method can be used in polluted site soil and underground water restoration projects.

The invention relates to an ultraviolet cross-linking copolymer and belongs to the field of macromolecule compounds. The ultraviolet cross-linking copolymer is a modified acrylate copolymer with a main chain formed by repeated structure units and a lateral chain containing ultraviolet light active groups, and is obtained by copolymerization reaction of 0.05 part to 20 parts of ultraviolet light active monomer and 80-99.5 parts of single functionality monomers by weight. The copolymer has the advantages of ultraviolet light polymerization and thermoplastic acrylic copolymer, and conducts remarkable chemical cross-linking reaction under ultraviolet irradiation reaction in the solid state or the coating filming state to quickly form a self-cross-linking network with the largest cross-linking degree to be over 90%. The ultraviolet cross-linking copolymer is still stable in performance if stored for 6 months under room temperature.

The invention discloses a nitrile rubber composite capable of improving mechanical property. With the adoption of the composite, the nitrile rubber composite with better mechanical property can be obtained, and can be used for a blowout preventer rubber seal product. The composite adopts the technical scheme that the composite takes nitrile rubber as a main material. The composite adopts a T-ZnOw tetrapod-like zinc oxide whisker and utilizes high strength and high modulus of a complete structure of the composite to improve a high molecule; a three-dimensional crystal form structure of the composite is dispersed in a matrix, so that a skeleton effect is exerted; a unique three-dimensional space structure allows a gripping force between the composite and the matrix to be greater, so that an improvement effect is more significant, and the tensile strength is improved significantly; and transverse and longitudinal tensile strength values are basically same, so that the mechanical property of a matrix material is improved isotropically, and the strength and the processability of the matrix are improved significantly.

The invention discloses a preparation method of cationic terpenyl epoxy resin polyalcohol water dispersoid and an application thereof. In the method, terpenyl maleic anhydride epoxy resin of glycidyl ester or hydrogenated terpenyl maleic anhydride epoxy resin of glycidyl ester is utilized to react with diethanol amine and micromolecule hydroxy chain extender under the action of catalyst to obtain the polyalcohol product, the polyalcohol product is neutralized with acid and directly disperses in water to obtain self-emulsifying cationic terpenyl epoxy resin polyalcohol water dispersoid. The polyalcohol water dispersoid is a bicomponent aqueous polyurethane system which is combined by hydroxyl component and polyisocyanate and can be widely applied to water paint, binding agent and polymer materials. The preparation method is simple and convenient, the preparation process is clean, the reaction process has no solvent, and stable self-emulsifying water dispersoid can be obtained with no need of stirring at a high speed; the hydroxyl value and the glass transition temperature of the polyalcohol resin can be adjusted along with the type and use level of the micromolecule chain extender; and the prepared bicomponent aqueous polyurethane paint film has excellent ultraviolet resistance and anti-yellowing performances.

The invention relates to a disposable hemostatic dressing wound leading-in first-aid hemostasis instrument, and belongs to the field of medical apparatuses and instruments. The instrument comprises a hemostatic material loading component and a pushing component. The hemostatic material loading component is used for storing compression-pill-shaped or flake chitosan hemostatic materials, and the front end is packaged through waterproof and breathable silica gel materials; and the pushing component is used for rapidly pressing the hemostatic materials into a wound. The disposable hemostatic dressing wound leading-in first-aid hemostasis instrument is particularly rapid and reliable in hemostatic effect on firearm wounds, penetration wounds and deep pricking wounds which are smaller in body surface penetration wound, large in internal wound and large in bleeding amount in battlefield rescuing. The disposable hemostatic dressing wound leading-in first-aid hemostasis instrument has the advantages that the efficient hemostatic materials are led into the deep wounds; as for tissue deep bleeding parts where bleeding stopping through a tourniquet or pressing is not suitable, the device can achieve the effects of accurate positioning, rapid bleeding stopping and hemorrhagic shock and dead preventing. When traumas accidentally occur, self rescuing or other rescuing can be carried out, and the valuable rescuing time can be won. The device has the advantages of being efficient in bleeding stopping, easy and convenient to operate, low in cost, convenient to carry, long in storage time and convenient to use.

The invention discloses self-emulsified nonionic terpenyl epoxy resin polyalcohol emulsion and a preparation method and application. The method comprises the following steps of: reacting hydroxyl and an epoxy group under the action of a catalyst by using a terpinene-maleic eater (TME) or a hydrogenated terpinene-maleic eater (HTME), polyethylene glycol (PEG) and a micro-molecule hydroxy chain extender; introducing a hydrophilic chain section polyethylene glycol (PEG) into a product to obtain a polyalcohol pre-polymer; and directly dispersing the polyalcohol pre-polymer with water to obtain the self-emulsified nonionic terpenyl epoxy resin polyalcohol emulsion. The polyalcohol emulsion is a bi-component waterborne polyurethane system consisting of a hydroxy component and polyisocyanate and can be widely applied to waterborne polymer systems such as paint, an adhesive and the like. The emulsion has the advantages of simple and convenient preparation method, clean preparation process, no solvent in a reaction process and high dispersion stability. The hydroxyl value of a polyalcohol resin is adjustable along with the adding amount of the micro-molecule chain extender. A prepared bi-component waterborne polyurethane paint film has high heat resistance and mechanical property.

The invention discloses an adjustable-charge high-pressure resistance device for breakouting pack of dynamite, which comprises a casing body. The casing body is connected with an upper joint and a spring tail. A boosting device is arranged in the upper joint. Unsaturated resin is filled in the casing body, and a certain amount of strip-shaped hollow cavities are distributed on the unsaturated resin and used for loading strip-shaped charges. Priming charges are arranged on the unsaturated resin, and are in tight contact with the strip-shaped charges. A centering sleeve and an elastic press plate are sequentially arranged under the unsaturated resin, wherein the elastic press plate is in contact with the spring tail. Compared with the breakouting pack of dynamite in the traditional artificial detonating cord-winding method, the invention has the advantages of safe and reliable on-site construction, convenient operation, flexible adjustment of charge loading amount, operation at high-pressure environments, and the like, and can be used for the breakouting pack of dynamite when the metal pipe column is blocked in the oil-gas well construction.

The invention relates to negative ion functional ink as well as a preparation method and a production method thereof. The preparation method comprises the steps: mixing and stirring a negative ion material, a solvent and a hyperdispersant in a weight ratio of (5-10): (83-92): (0.5-5) in a stirrer to obtain a mixture; sanding the stirred mixture in a sanding machine; filtering the sanded mixture obtained in the previous step so as to remove iron to obtain negative ion functional ink. The negative ion functional ink prepared by adopting the hyperdispersant and the negative ion material has the advantages of good dispersion property and high stability. When the negative ion functional ink is used for preparing a negative ion functional ceramic brick, the addition quantity of the negative ion material can be greatly reduced, and the production cost can be reduced; the negative ion functional ink and a glazed surface are good in compatibility, the defects of the glazed surface such as cracking, pinholes and glaze crawling can be avoided in the production process of the negative ion functional ceramic brick, raw materials can be saved, and the production efficiency is high.

The invention discloses a feeding apparatus having a higher reliability for feeding to the panoramic table of a rotary hearth furnace and a feeding system for the rotary hearth furnace. The feeding apparatus comprises a material distributing bin positioned on a frame and provided with an inlet and an outlet, the material passage between the inlet and the outlet is provided with a material feeder which comprises a feeding-in wheel axis and a plurality of feeding-in scratch boards around the feeding-in wheel axis, wherein, the feeding-in wheel axis is connected with a driving device.The feeding system of the rotary hearth furnace comprises a belt conveyer and a panoramic table of the rotary hearth furnace, the feeding apparatus for feeding materials to the panoramic table of the rotary hearth furnace is provided between the belt conveyer and the panoramic table, and the axial lead of the feeding-in wheel axis is vertical with that of the panoramic table of the rotary hearth furnace and is parallel with the rotation axis of the belt conveyer.The invention has characteristics of simple structure, trouble-free service and uniform material-distributing, and is especially adapted to the application of the feeding system of a rotary hearth furnace.

The invention discloses a preparation method of retardation grains used for corrosion resistance, scale prevention and wax resistance of an oil well. In the method, 35 to 50 percent of hydroxy ethylidene disodium diphosphate, 15 to 35 percent of BTA, 15 to 35 percent of ethylene-vinyl acetate multipolymer, 1 to 3 percent of polylactic acid-modified starch, 0.5 to 10 percent of butyl stearate, 1 to 4 percent of foaming agent, 0.5 to 4.5 percent of lubricant and 1 to 3 percent of polylactic acid- polyvinyl alcohol are added into a high mixer, stirred for 3 to 5 minutes for mixing uniformly under the room temperature; materials are added into a double screw extruder by an automatic feeding machine for mixing; the cured materials through mixing enter a single screw extruder, is extruded out and cut into grains; the cut grains are cooled by a fan and are transmitted to a first grade cyclone separating device for cooling-separating; and then the cut grains enter a shaking screen and are screened for obtaining the product. The retardation grains of scale prevention and wax resistance can effectively solve the problems of scale formation and wax deposition of the oil well during the oil filed production. The unqualified products in the production process can be reprocessed, thus having no wastes in the production process.

The invention relates to a preparation method of an AC foaming agent, which comprises the following steps: violently mixing part of biurea slurry and chlorine by using a jet reaction device, instantaneously reacting to generate an AC foaming agent crystal nucleus, adding the crystal nucleus into the residual biurea slurry, and adding an oxidant to oxidize to generate the AC foaming agent. The process has the advantages that the particle size and the particle size distribution range of the AC foaming agent can be controlled, the use stability of the AC foaming agent is improved, and the added value and the market competitiveness of products are improved.

A multifunctional quantitative discharging utensil comprises a utensil body, a storage cavity, a measuring cavity, an interception mechanism, a positioning cylinder, a side gate mechanism and a sprinkling can mechanism, and is characterized in that the storage cavity is formed in the upper portion of the utensil body; the measuring cavity is formed in the lower front part of the utensil body, the interception mechanism is arranged on the lower rear part of the utensil body, the positioning cylinder is arranged on the lower rear part of the utensil body, a side gate opening is formed in the lower front side of the measuring cavity, and the sprinkling can mechanism is arranged on the front part of the utensil body. The multifunctional quantitative discharging utensil has the advantages that the utensil is simple in structure, small, low in cost, capable of quantitatively taking and pouring materials, fast and especially suitable for food making, cooking and material blending, the putting amount can be adjusted, several materials can be put jointly, visual inspection is not needed, and different materials such as powder, grains, paste, materials capable of being cut with knives and sticky soft materials capable of being cut with knives can be quantitatively taken and poured simultaneously with the single hand.