431results about How to "Effective peeling" patented technology

An apple/potato peeler. The peeler includes a base, a main frame mounted to a slightly L-shaped structure on the base, a rotatable and axially movable screw horizontally supported on a screw support member on a vertical frame member disposed at the rear of the main frame, a 3-prong fork fixed to the front end of the screw, a guide piece pivotally mounted on the vertical frame member and being releasably engageable relative to a screw channel of the screw, a resiliently movable peeling arm fore-and aft swingeable pivoted to the front part of the horizontal frame member of the main frame, a U-shaped peeling blade fixed to the upper end of the movable peeling arm by a blade positioning device, and a coring/slicing blade fixed to the front end of the horizontal frame member for cutting flesh of a vegetable fruit held by the 3-prong fork if the screw into continuous spiral slices and for coring fruit.

A process of enhancing peel oil extraction from citrus fruit comprises providing a mixture containing citrus solids and water, subjecting the citrus solids and water mixture to high power ultrasonic energy under conditions sufficient to separate peel oil from the citrus solids, and recovering the peel oil. An apparatus for extracting peel oil from citrus fruit comprises an extractor, a conduit for flowing a citrus mixture containing citrus solids and water, and an ultrasonic generator for subjecting the citrus mixture to high power ultrasonic energy to separate peel oil from the citrus solids. In another embodiment, sonic energy is used to de-emulsify peel oil in a citrus mixture.

The invention belongs to technical field of nanomaterials and discloses a method for solvothermal preparation of fluorescent carbon nitride quantum dots by adoption of melamine as a raw material. The method includes steps: a) calcining melamine in a muffle furnace at a high temperature, and grinding products into yellow graphite-phase carbon nitride powder; b) scattering the graphite-phase carbon nitride powder into an alcohol solvent, adding a certain amount of alkali liquor, dissolving ultrasonically, sealing in a reaction kettle, and reacting for a while at a high temperature; c) cooling to the room temperature, collecting filtrate after vacuum filtration, and dialyzing the filtrate in a dialysis bag with a certain molecular weight cutoff until the filtrate is neutral, so that the fluorescent carbon nitride quantum dots are obtained. The method is simple in process, easy in operation, low in cost and environment friendly, and the prepared fluorescent carbon nitride quantum dots are high in purity and yield, excellent in dispersity and stability and high in fluorescence intensity and have a potential application prospect in fields of bioimaging, solar cells and the like.

The invention discloses a steel slag grinding production technology and system. In the production technology, steel slag of which the moisture is less than or equal to 5% and the granularity is less than 80mm is sent into a column grinder to be grinded to obtain fine powder which contains more than 90% of powder of which the granularity is less than 5mm; the fine powder is screened by a vibrating screen; the screened steel slag fine powder is sent into a strong magnetic separation machine by a belt conveyor to remove iron to ensure that the iron content in the steel slag fine powder is below 2%; and the steel slag fine powder subjected to iron removal is sent into a slag vertical mill to be dried and grinded to obtain a steel slag product of which the specific surface area is 4200-4500cm<2>/g. The production system mainly comprises a charging cabin, a column grinder, a vibrating screen, a belt conveyor, a strong magnetic separation machine and a slag vertical mill. The steel slag grinding production system has the advantages of big yield, high grinding efficiency, low use cost and operation cost and obvious power saving effect, and the economic benefit is improved.

The invention discloses a passion fruit jam and a preparation method thereof. The preparation method comprises the following steps: selecting and cleaning passion fruit; freezing; scalding; carrying out cold leaching to remove outer skin; soaking to keep freshness; separating and collecting; circularly pulping; and seasoning. Through physical methods of freezing, scalding and cold leaching, the outer skin which is relatively hard in surface texture and coarse and dry in taste is efficiently removed from the fresh passion fruit; the jam which is free of a preservative or other pigment additives, pleasant in sweetness and sourness and abundant in nutrient is prepared from middle skin, inner skin, pulp and juice of the passion fruit; the production method is simple; the production cost is relatively low; and the passion fruit jam is economical, environment-friendly and suitable for large-scale industrial production.

The invention discloses a cleaning additive for glass bottles and a cleaning method of the glass bottles. The cleaning method and the cleaning additive are used for glass bottle cleaning by a primary alkaline bath and a secondary alkaline bath. The cleaning additive comprises a component A, a component B and a component C, wherein the component A comprises an organic phosphorus chelating agent, the component B comprises peroxide, the component C comprises a defoaming agent, the component A is added into the primary alkaline bath, the component B is selectively added into the primary alkaline bath, the component A and the component B are added into the secondary alkaline bath, and the component C is selectively added into the primary alkaline bath or the secondary alkaline bath. Based on the weight of alkaline solution in the primary alkaline bath or the secondary alkaline bath where the component is added, the adding amount of the component A is 0.05-5%, the adding amount of the component B is 0.1-0.5%, and the adding amount of the component C is 0-0.5%. The alkaline solution in the primary alkaline bath and the secondary alkaline bath is sodium hydroxide solution having a concentration of 1.5-3%. The cleaning additive and the cleaning method can achieve stable and good cleaning effects at a relatively low temperature that is usually 50-70 DEG C.

The invention discloses a technological method for producing copper rice grains by recovering waste wires and cables based on an improvement of the prior production mode that the waste wires and cables recover copper raw materials. The technological method has low cost, small energy consumption, less discharge and no waste pollution, meets the requirement of circular economy development, and can obtain a copper rice grain product the purity of which reaches 99.9 percent. The technological process comprises the steps of classification inspection, loading, primary crushing, secondary crushing, and vibration separation; the angle of a vibration sieve is adjusted according to the content of copper and the wire diameter, and the copper rice grains and plastic are subjected to optional separation through vibration sieving; a material from a mixed material port flows into an air suction pipe, and is sent for secondary crushing through a circulating air pipe; the air suction pipe above the vibration sieve sucks plastic fibers and other dust in the space of the vibration sieve to a dust collector for treatment; the qualified copper rice grains obtained at a copper outlet flow into a packing bag; and the finished product inspection is performed, namely the obtained copper rice grains enter a warehouse through the inspection.

The invention discloses a laser lift-off method for flexible electronic application of a sapphire substrate of a gallium nitride LED. According to the laser lift-off method, lasers with high power and very short action time are emitted, and sufficient heat is generated in an interface area, so that gallium nitride is decomposed into metal gallium and nitrogen; besides, due to the fact that the action time of the lasers is very short, the heat is concentrated, only the gallium nitride which is hundreds of nanometers thick nearby an interface is decomposed, and a core area of the gallium nitride LED cannot be damaged; after being irradiated, the interface area only has one layer of the metal gallium left after decomposition of the gallium nitride, and the metal gallium enables the sapphire substrate to be connected with the gallium nitride; heating is conducted so that the gallium nitride and the sapphire substrate can be separated; a diluted hydrochloric acid solution is used for removing the residual metal gallium on the gallium nitride after separation. Compared with the prior art, the sapphire substrate of a whole LED array can be lifted off and transferred effectively without change by means of the simple and rapid laser lift-off method.

The invention belongs to the technical field of nanomaterials, and discloses a hydrophilic boron nitride nanosheet and a preparation method and application thereof. The preparation method specifically comprises the following steps that firstly, hexagonal boron nitride powder is dispersed in an alcohol solvent, and a certain quantity of alkali saturated aqueous solution is added; secondly, the alcohol dispersion solution of the boron nitride powder is put into a reaction kettle to be sealed, and reacts for a period of time under a high-temperature closed condition; thirdly, after the product is cooled to the room temperature, the product is washed with deionized water to be neutral after vacuum suction filtration, and freeze drying is conducted to obtain alkali ion intercalated boron nitride compound powder; fourthly, the composite powder is re-dispersed in deionized water, ultrasonic treatment is conducted for 10 minutes, and an aqueous dispersion solution of the boron nitride nanosheet can be obtained after dialysis and purification. The preparation method is simple in process, easy to operate, low in cost and environmentally friendly, the yield of the obtained boron nitride nanosheet is high, and the boron nitride nanosheet has good water dispersibility and stability. The hydrophilic boron nitride nanosheet has potential application prospects in the fields of drug carriers, biological sensing and the like.

The invention belongs to the technical field of graphene preparation, and discloses a method for preparing graphene solution based on supercritical carbon dioxide and pyrenyl polymers. Graphites of 10 to 20 mg and the pyrenyl polymers of 15.4 to 30.8 mg are dispersed in dimethyl sulfoxide of 5 to 10 ml; then obtained suspending liquid containing the graphites and the pyrenyl polymers is put in a supercritical carbon dioxide reaction device, is stirred and reacts for 3 to 6 hours under the temperature ranging from 40 to 45 DEG C and the pressure ranging from 12 to 16 MPa, and then is processedthrough pressure relief; obtained liquid reactant is separated to remove supernatant; sediments are repeatedly washed through solvent so as to remove unreacted pyrenyl polymers, and then are dispersed in the same type of solvent renewedly; and finally, the graphites that are not exfoliated are removed, and then graphene solution is obtained. The method solves the problem that high-concentration uniform graphene solution is difficult to prepare at present, can achieve the high-yield and high-quality preparation and the functionalization of graphene in one step, can enable the output of non-defective graphene layers to be high to 51.8 wt percent, and is a simple and effective method for preparing graphene solution.

The invention relates to a method for large-scale preparation of graphene and two-dimensional boron nitride crystal materials. The method is characterized in that in the presence of NH3BH3 as a ball milling assistant, a solid mixture having a mass ratio of an inorganic layered material to NH3BH3 of 1: 0.5-5 is subjected to ball milling treatment by a mechanical ball milling technology so that high-efficiency peeling on the inorganic layered material such as graphite and hexagonal boron nitride is realized; and the products are washed and filtered for NH3BH3 removal and the filtration products are dried so that the single-layer or multiple-layer graphene and two-dimensional boron nitride crystal materials are obtained. The graphene and two-dimensional boron nitride crystal materials have high purity and complete structures. The method has the advantages of easy acquisition of raw materials, operation simpleness, safety and low cost and is suitable for large-scale preparation of the graphene and two-dimensional boron nitride crystal materials.

The invention belongs to the field of electric power operation and discloses a wire stripping device. The wire stripping device comprises a fixed part (1), a rotating part (2), a clamping part (3), and a cutting part (6); the rotating part (2) rotates relative to the fixed part (1); the clamping part (3) is used for clamping a wire; the clamping part (3) is fixedly connected with the rotating part (2); and the clamping part (3) is provided with clamping blocks (4) and a clamping block adjusting mechanism (5) used for changing the states of the clamping blocks (4); and the clamping part (3) isfixedly connected with the rotating part (2) and the cutting part (6) and is used for cutting the insulating layer of the wire. The wire stripping device is provided with the fixed part, the rotatingpart rotating relative to the fixed part, the clamping part connected with the rotating part and the cutting part; the wire stripping device clamps the wire through the clamping part and drives the cutting part through the rotating part so as to strip the wire; and therefore, manual operation is not needed, and safe, rapid and efficient stripping can be achieved.

It is intended to allow an asphalt pavement to be peeled off efficiently with a relatively small amount of electric power without generating large vibration and noise, and handled in the form of a block. An electromagnetic induction coil 36 is positioned above an asphalt pavement 22 provided on a copper plate (12) to melt a lower surface of the asphalt pavement 22. Then, a wedge-shaped thermally-conductive peeling member 60 having a peeling layer formed on an upper surface thereof is inserted into a melted layer (74) of the lower surface of the asphalt pavement 22 to peel off the asphalt pavement 22 from the steel plate 12. This makes it possible to peel off the asphalt pavement 22 with a relatively small amount of electric power and handle the peeled asphalt pavement 22 in the form of a block.

The invention discloses mango and passion fruit jam and a preparation method thereof. The jam comprises raw materials as follows: 10 parts of mango pulp by weight, 1-100 parts of peeled passion fruits by weight, 4-110 parts of a sweetening agent by weight and 0.5-10 parts of an acidulant by weight. The preparation method of the jam comprises steps as follows: (1) mangoes are selected, peeled and subjected to color protection for use; (2) passion fruits are selected, washed, frozen, unfrozen, peeled and soaked for preservation; (3) the mangoes are pulped or diced, the passion fruits are pulped and homogenized for use, mango pulp or dices are added to passion fruit pulp, and boiling concentration, seasoning, sterile canning, degassing and cold storage are performed. Peels of the passion fruits are effectively removed with a simple physical method of freezing and thawing. The jam which contains no additive and is sour, sweet, delicious and rich in nutrition is prepared from the mango pulp or dices as well as remaining peels, pulp and juice of the passion fruits; the production method is simple, economical, environment-friendly, suitable for mass industrial production and lower in production cost.

The invention discloses a drill column vibration and hydraulic pulse coupling downhole drilling tool which comprises an upper joint, an outer cylinder, a locking nut, a core shaft and a lower joint. The outer cylinder and the core shaft are in sliding key fit; a disc-shaped spring is arranged between the outer cylinder and the core shaft; a pressurized flow dividing structure is arranged at the upper end of the core shaft; a main flow hole channel of the pressurized flow dividing structure communicates with a fluid channel in the center of the core shaft; flow diving hole channels are formed in the periphery of the main flow hole channel; the upper portion of the outer cylinder, a pressurized flow dividing channel and the upper portion of the core shaft form an annular pressurized cavity; the flow diving hole channels communicate with the annular pressurized cavity; the annular pressurized cavity communicates with the main flow hole channel through a jet flow hole channel; and when the outer cylinder and the core shaft relatively move, the size of the annular pressurized cavity can be changed, and the jet flow hole channel is closed periodically. According to the drill column vibration and hydraulic pulse coupling downhole drilling tool, through alternating load coupling generated by a hydraulic pulse jet flow and drill column vibration, shaft bottom rock is effectively stripped from the shaft bottom, meanwhile, the pulse jet flow improves the cleaning ability of rock debris, and thus the drilling speed is increased.