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162results about How to "Remove comprehensively" patented technology

Method for determination of fat-soluble vitamins by using semi-automatic sample treatment liquid chromatographic technology

The invention discloses a method for simultaneous determination of various fat-soluble vitamins in serum by using a semi-automatic sample treatment liquid chromatographic technology; the HPLC method is adopted, and the chromatographic conditions comprise that a mobile phase A is a 0.05% trifluoroacetic acid aqueous solution, a mobile phase B is a 0.02% trifluoroacetic acid methanol-ethanol mixed solution, and gradient elution is adopted; the various fat-soluble vitamins are selected from vitamin A, vitamin D2, vitamin D3, alpha-tocopherol, beta-tocopherol, gamma-tocopherol, delta-tocopherol, K1, K2 or Q10. Through optimization of a sample pretreatment method and high performance liquid chromatographic conditions, the method for simultaneous determination of the various fat-soluble vitamins in the serum is established, can carry out precise qualitative and quantitative analysis, is a detection method having the advantages of simple and fast sample processing, high flux, reliable result and low cost, has the advantages of strong specificity, high sensitivity, simple operation, low cost and the like, has easily analyzed and objective results, and is especially suitable for clinical popularization and application.
Owner:济南国益生物科技有限公司

Printing cylinder of self-cleaning type printer

ActiveCN110077094ADisassembly does not need to be frequentExtended service lifeRotary pressesPrinting press partsEngineeringPrinting press
The invention relates to a printing cylinder of a self-cleaning type printer. The printing cylinder of the self-cleaning type printer comprises a first installing plate, a second installing plate, a printing cylinder body, a cleaning mechanism and an ejection mechanism; the printing cylinder body is installed on the side wall of the first installing plate through a bearing, the cleaning mechanismis installed on the printing cylinder body, the ejection mechanism is arranged at the left end of the cleaning mechanism, and the ejection mechanism is installed on the second installing plate; the cleaning mechanism comprises a linear bearing, an installing branch chain, rotating blocks, an electric rotating disc and cleaning branch chains; and the ejection mechanism comprises installing cylinders, ejection springs, ejection rods, fixing cylinders, reciprocating springs, reciprocating rods and collision rings. According to the printing cylinder of the self-cleaning type printer, the printingcylinder body is detachably installed, the occupation size is small, the printing cylinder does not need to be frequently disassembled, and therefore the service life of the printing cylinder is prolonged; and stains at any positions of the outer wall of the printing cylinder can be removed instead of a manual mode, cleaning brushes can not waggle in the cleaning process, and the cleaning effect is good.
Owner:苏州科士达印务有限公司

Preparation method of photocatalyst formaldehyde-removal blanket

The invention discloses a preparation method of a photocatalyst formaldehyde-removal blanket. Regenerated fine-denier long-stapled cotton and low-melting-point fiber with the temperature of 110 DEG C are selected as the raw materials, and meanwhile a photocatalyst dilute solution is prepared; regenerated fine-denier long-stapled cotton and low-melting-point fiber with the temperature of 110 DEG C are put into an opener to be opened and enter a carding machine to be carded after being mixed by a mixer, and a web is output; a high-pressure spraying gun is started to continuously and evenly spray the photocatalyst dilute solution to the upper surface of the web when the web is output by the carding machine to enter a web laying machine; when the web loaded with the photocatalyst dilute solution sequentially enters the web laying machine, a high-temperature oven, a low-temperature oven, an ironing roller and a cooling machine, an ultraviolet lamp is always turned on to irradiate nanometer titanium dioxide. A felt is rapidly and sufficiently loaded with the photocatalyst dilute solution through a spraying process, and the photocatalyst dilute solution has an efficient catalytic effect on removing formaldehyde through the ultraviolet lamp.
Owner:INTERIOR DECORATION MATERIALS CO LTD ZHENJIANGTONGDA

Method for purifying silicon through phase separation and dealloying

The invention belongs to the technical field of purification of silicon, and particularly relates to a method for purifying silicon through a phase separation and dealloying reaction method. Firstly,a silicon raw material containing metal or non-metal impurities is mixed with magnesium powder, and then a sufficient reaction is carried out under the inert atmosphere, so that silicon atoms in the silicon raw material react with magnesium to be converted into magnesium silicide, and the impurities in the silicon raw material are separated from silicon to obtain a first product; then the first product is subjected to a nitridation reaction under the nitrogenous atmosphere, the magnesium silicide in the first product is converted into liquid-phase magnesium nitride at the reaction temperature,silicon separates crystals from the liquid-phase magnesium nitride, three-dimensional porous silicon and magnesium nitride distributed in pore passages of the three-dimensional porous silicon are formed, and a second product is obtained; in the process of separating out the crystals by the silicon, the impurities are further separated and dissolved in the liquid-phase magnesium nitride; finally,the second product is treated through acid pickling, wherein the magnesium nitride and the impurities are dissolved and converted into a solution, and a solid product is high-purity porous silicon.
Owner:WUHAN UNIV OF SCI & TECH

Surface treatment device used after rubber tire manufacturing and molding

The invention relates to a surface treatment device used after rubber tire manufacturing and molding. The surface treatment device comprises a bottom plate, a clamping device, a grinding device and agrinding removing device, wherein the clamping device is arranged on the bottom plate, the grinding removing device is arranged on the clamping device, and the grinding device is arranged at the middle end of the bottom plate. The surface treatment device can solve the following problems, existing in a rubber tire burr removing process at present, that 1, in the traditional rubber tire burr removing process, generally, a curved blade is manually held to conduct cutting, in the rubber burr removing process, the standing position of a user needs to be continuously adjusted, after rubber burrs onone side are removed, a tire needs to be turned over to conduct rubber burr removing operation on the other side, and the labor intensity of manual rubber tire burr removing is high; and 2, when burrs are removed through an existing rubber tire burr removing device, incomplete burr removing often occurs, the burrs after removal cannot be collected, the environmental sanitation is affected, and the rubber tire burr removing efficiency and effect can be affected.
Owner:江门腾晖橡胶有限公司

Grinding disc used for precise processing of rolling surface of tapered roller and equipment method

The invention discloses grinding equipment used for precise processing of the rolling surface of a tapered roller and a grinding disc sleeving piece. The grinding equipment comprises main equipment, the grinding disc sleeving piece and a roller circular disc external system, the main equipment comprises a base, an upright column, a beam, a sliding table, an upper tray, a lower tray, an axial loading device and a main shaft device, and the roller circular disc external system comprises a roller collecting device, a roller transporting system, a roller arrangement system and a roller feed-in mechanism; the grinding disc sleeving piece comprises a pair of coaxially arranged first and second grinding discs of which the front surfaces are opposite to each other, the front surface of the first grinding disc comprises a set of linear grooves distributed on the base surface (right circular conical surface) of the first grinding disc in a radial form, the front surface of the second grinding disc comprises one or more spiral grooves distributed on the base surface (right circular conical surface) of the second grinding disc, and the sum of the cone apex angles of the base surfaces of the first and second grinding discs is 360 degrees. The grinding equipment has the precise processing capacity to process the rolling surfaces of mass tapered rollers.
Owner:TIANJIN UNIV

Solid phase sludge joint treatment method and use

The invention discloses a method for innocent treatment of sludge by combining composting technology and biological leaching technology and application thereof. The invention provides the sludge combined treatment method aiming at the defects of high investment and large land occupation in the prior sludge innocent treatment method. The treatment method integrates the biological leaching and heavy metal removal technology and the composting technology, and simultaneously removes heavy metals, pathogenic bacteria, insect eggs, organic pollutant and the like in the sludge through combined treatment. Moreover, the treatment method makes the two types of technology mutually create favorable reaction conditions during application, saves the treatment cost, and greatly improves the innocent quality. The treated sludge has small toxic compositions and high retention rate of nutritive elements, can be continuously processed into biological organic and inorganic compound fertilizers which accord with the national standards, and is suitable to be used in green agricultural production. The method has the characteristics of simple technological process, strong practicality, low use cost and easy realization of industrialization, and is particularly suitable for the national conditions.
Owner:成都禾力宝生物肥料有限责任公司

Magnetic grinding disc, equipment and method for tapered roller rolling surface finishing

The invention discloses grinding equipment and a magnetic grinding disc kit for tapered roller rolling surface finishing of ferromagnetic materials. The grinding equipment comprises a main body, the magnetic grinding disc kit and a roller circulation disc outer system. The main body includes a base, a column, a beam, a slide table, an upper tray, a lower tray, an axial loading device and a spindledevice. The roller circulation disc outer system includes a roller collecting device, a roller demagnetizing device, a roller conveying system, a roller finishing mechanism and a roller feeding mechanism. The magnetic grinding disc kit includes a pair of coaxial first and second grinding discs of which the front surfaces are disposed opposite to each other. The front surface of the first grindingdisc includes a set of linear grooves radially distributed on a base surface (positive conical surface) of the first grinding disc, the front surface of the second grinding disc includes one or morespiral grooves distributed in the base surface (positive conical surface) of the second grinding disc, and a ring-shaped magnetic structure is embedded inside a base body. The grinding equipment has the finishing ability of multitudinous ferromagnetic material tapered roller rolling surfaces.
Owner:TIANJIN UNIV

EPN (Ethyl P Nitrophenyl Phenylphosphonothioate) livestock breeding sewage disposal system

The invention relates to an EPN (Ethyl P Nitrophenyl Phenylphosphonothioate) livestock breeding sewage disposal system. The EPN livestock breeding sewage disposal system comprises a centrifugal extrusion solid-liquid separating system, a water feeding system, an EPN electrochemical generator, a dosing system, a floatation system, a sludge drying system, an EPN acousto-optical chemical water quality super oxidization system and a post-treatment water quality stabilization system. A method for implementing the system comprises the following steps: removing large suspended solids (SS) through solid-liquid separation, reducing COD (Chemical Oxygen Demand) and SS in a water body, and scraping flocculates in the water body on the surface to remove the SS in the water; removing heavy metals and antibiotics in sewage and reducing the COD, BOD (Biochemical Oxygen Demand) and ammonia nitrogen through an EPN electrochemical generator, and combining impurities into flocculates in a collision way; effectively grabbing and floating small SS in water through the floatation system, and removing the flocculates formed in the EPN electrochemical generator; and filtering sand carbon through post-treatment, and stabilizing the water quality through the EPN acousto-optical chemical water quality super oxidization system in order to discharge the sewage up to a certain standard and recycle the sewage.
Owner:毛斌全

Remediation device for contaminated soil

The invention relates to a remediation device for contaminated soil. The remediation device comprises oxidation treatment equipment. The oxidation treatment equipment comprises a water tank, a quantitative dosing pump, oxidant tanks, stirring equipment and a vacuum separator. A water outlet of the water tank is connected with the quantitative dosing pump. The output ends of the oxidant tanks are connected with the input end of the quantitative dosing pump. The output end of the quantitative dosing pump is connected with the input end of the stirring equipment. The vacuum separator comprises afirst space for containing materials in the stirring equipment and a second space which is in vacuum and is used for containing waste liquid. According to the remediation device for the contaminated soil, by arranging the quantitative dosing pump, the water in the water tank and an oxidant in the oxidant tanks can be quantitatively added to the stirring equipment, and the water quantity and the drug quantity can be flexibly adjusted according to actual requirements; the oxidant and pollutants are fully stirred in the stirring equipment so as to realize a complete oxidizing reaction; and afterthe reaction, the materials in the stirring equipment are moved to the vacuum separator for solid-liquid separation, so that secondary pollution caused by waste liquid is avoided, and soil remediationis realized.
Owner:INST OF GEOGRAPHICAL SCI & NATURAL RESOURCE RES CAS +2

Air purifier special for train

The invention discloses an air purifier which is good in air purification effect and special for a train. The air purifier special for the train comprises an upper box body and a lower box body matched with the upper box body. The upper box body structurally comprises an upper covering plate, a front side plate and a rear side plate, wherein the front side plate and the rear side plate are arranged on two sides of the upper covering plate and are each evenly provided with a plurality of side plate breathable holes, and upper bolt holes are formed in four corners of the upper covering plate. The lower box body structurally comprises a bottom plate, a left side plate and a right side plate, wherein the left side plate and the right side plate are arranged on two sides of the bottom plate, each evenly provided with a plurality of side surface breathable holes, and provided with lower bolt holes matched with the upper bolt holes. The upper box body and the lower box body are mutually fixed through bolts, the upper bolt holes and the lower bolt holes. A cold catalyst filtering screen installation cavity, a first electrostatic generator installation cavity, a second electrostatic generator installation cavity and an activated carbon filtering screen installation cavity are arranged in the lower box body sequentially from front to back.
Owner:JIANGSU RONGBANG MACHINERY MFG

Grinding disk, apparatus and method for finishing rolling surface of convex cylindrical roller

A lapping apparatus and a lapping disk kit for finis a rolling surface of a convex cylindrical roller are disclose. That lapping apparatus includes a main body, a lapping disk kit and a roller circulation disk out system. The main engine comprises a base, a column, a cross beam, a sliding table, an upper tray, a lower tray, an axial loading device and a spindle device, wherein the main engine comprises a base, a column, a cross beam, a sliding table, an upper tray, a lower tray, an axial loading device and a spindle device. The outer system of the roller circulating disk comprises a roller collecting device, a roller conveying system, a roller finishing mechanism and a roller feeding mechanism. The abrasive disk kit includes a pair of first and second abrasive disks coaxially and oppositely disposed facing each other. A front surface of the first abrasive disk includes a set of concave arc grooves radially distributed on a base surface of the first abrasive disk (concave circular arc rotating surface), The front surface of the second abrasive disk includes one or more spiral grooves distributed on the base surface of the second abrasive disk (convex circular arc rotating surface),and the radii of curvature of the base circle and the radii of curvature of the cross-section of the base surface of the first and second abrasive disks are equal to each other. A lapping apparatus ofthat present invention has the finis machining capability of a rolling surface of a large numb of convexity cylindrical rollers.
Owner:TIANJIN UNIV

Magnetic grinding plates, equipment and method for finish machining of rolling surface of cylindrical roller

The invention discloses grinding equipment and a magnetic grinding plate suite for finish machining of the rolling surface of a cylindrical roller made of a ferromagnetic material. The grinding equipment comprises a main unit, the magnetic grinding plate suite and a roller circulating plate external system, wherein the main unit comprises a base, a stand column, a cross beam, a sliding table, an upper tray, a lower tray, an axial loading device and a spindle device; the roller circulating plate external system comprises a roller collecting device, a roller demagnetizer, a roller conveyor, a roller finishing mechanism and a roller feed-in mechanism. The magnetic grinding plate suite comprises a first grinding plate and a second grinding plate which are coaxial, and the front sides of the pair of grinding plates are opposite; a group of linear grooves radially distributed on the base surface (right circular conical surface) of the first grinding plate are arranged on the front side of the first grinding plate, one or more spiral grooves distributed on the base surface (right circular conical surface) of the second grinding plate are formed on the front side of the second grinding plate, and an annular magnetic structure is inlaid in a substrate of the second grinding plate. The grinding equipment has the finish machining capacity for the rolling surfaces of a large scale of cylindrical rollers made of the ferromagnetic material.
Owner:TIANJIN UNIV

Grinding disc, equipment and method for finish machining of rolling surface of convex circular cone roller

The invention discloses grinding equipment and grinding disc external member for finish machining of the rolling surface of a convexity circular cone roller. The grinding equipment comprises a main machine, the grinding disc external member and a roller circulating disc external system. The main machine comprises a base, a stand column, a cross beam, a sliding table, an upper tray, a lower tray, an axial loading device and a main shaft device. The roller circulating disc external system comprises a roller collecting device, a roller conveying system, a roller cleaning mechanism and a roller feeding mechanism. The grinding disc external member comprises a pair of first and second grinding discs, wherein the front surfaces of the first and second grinding discs are coaxially arranged are arranged in an opposite mode. The front surface of the first grinding disc comprises a group of concave arc grooves radially distributed on the first grinding disc base surface (concave arc rotating surface), the front surface of the second grinding disc comprises one or more spiral grooves distributed on the second grinding disc base surface ( convex arc rotating surface ), and the radius of curvature of the base circle and the radius of curvature of the base surface cutting line of the first and second grinding discs are equal. The grinding equipment and grinding disc external member for finishmachining of the rolling surface of the convexity circular cone roller has the finish machining capability of rolling surfaces of large-scale convexity circular cone rollers.
Owner:TIANJIN UNIV

Novel enhanced coagulation wastewater treatment method

The invention provides a novel enhanced coagulation wastewater treatment method. The novel enhanced coagulation wastewater treatment method comprises the following steps of: S1, primary coagulation sedimentation: wastewater is introduced into primary coagulation sedimentation equipment, and a coagulant and a flocculant are added for coagulation reaction and solid-liquid separation; S2, aeration back-regulation of the pH value: the effluent of the primary coagulation sedimentation equipment enters aeration back-regulation equipment, and the pH value is back-regulated through aeration; S3, secondary coagulation precipitation: the effluent of the aeration back-regulation equipment enters secondary coagulation precipitation equipment, and a coagulant and a flocculant are added for secondary coagulation precipitation treatment; and S4, sludge treatment: sludge generated in the primary coagulation sedimentation step enters sludge concentration equipment for subsequent treatment, and sludge generated in the secondary coagulation sedimentation step flows back to the front end of the primary coagulation sedimentation equipment or is directly conveyed into the sludge concentration equipment for subsequent treatment. According to the method provided by the invention, different reaction conditions are respectively optimized in two-stage coagulation sedimentation, so that different types of substances can be efficiently removed, and the cost of an alkaline substance agent for regulating the pH value of the wastewater is saved or reduced by utilizing a method for back-regulating the pH by aeration in the pH back-regulation stage of two-stage coagulation.
Owner:联合环境技术(天津)有限公司
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