77results about How to "Convenient dispensing operation" patented technology

The invention relates to a gelation-delayed in-situ polymerized water shutoff gel for high-temperature reservoirs, which consists of 5 to 7 percent by weight of main agent, 1 to 2 percent by weight of solubilizer, 1 to 2 percent by weight of cross-linking agent, 0.1 to 0.8 percent by weight of initiator and the balance of water, the main agent consists of monomer A and monomer B, the mass ratio of the monomer A to the monomer B is 3:1 to 5:1, the monomer A is acrylamide, and the monomer B is ester. Under high temperature, the pumping time of the gel is relatively longer, the gelation time canbe controlled at 20 to 72 hours under 120 DEG C, the final set strength can reach visual observation code level I, the synaeresis of the gel does not take place in 90 days, and the gel can be used inwater shutoff operation for high-temperature reservoirs under 90 DEG C to 140 DEG C. Because the gel has the advantages of good pumping property, high plugging strength, long service life, simple construction process and the like, the gel has a broad application prospect in chemical profile modification and water shutoff for oil fields.

The invention relates to a novel selective water shutoff agent for oil well water shutoff, belonging to the technical field of tertiary oil recovery. The water shutoff agent is a composite system of gel particles with the mass concentration of 0.5-5% and a cross-linking agent with the mass concentration of 1-2%, which is prepared by using oilfield injection water; and the water shutoff agent is applicable to water plugging of an oil well at a temperature of 60-120 DEG C. The gel particles are formed by an acrylamide monomer or compounding the acrylamide monomer with a temperature resistant and salt-resistant auxiliary monomer and a cross-linking monomer through copolymerization; the cross-linking monomer is an ester monomer which has a double-bond structure and is easy to resolved when being heated, the expanding and resolving time of the cross-linking monomer at different temperatures can be controlled through adjusting the concentration of the cross-linking monomer, and bulk polymerization or inverse emulsion polymerization is adopted as a polymerization method. In the invention, basically no gel is formed on an oil layer, and high-strength gel can be formed on a water layer, thus defects in the prior art are overcome, the error shutoff phenomenon easily caused by the traditional polymer bulk gel in the oil layer is reduced to the greatest extent, and the capacity of an oil well suffering from water shutoff is ensured.

The invention discloses temperature-resisting salt-tolerant high-temperature self-cross-linking onsite polymerization water plugging gel which mainly consists of, by mass, main agent 4%-6%, cross-linking agent 1%-2% and the balance saline water. The main agent consists of a monomer A and a monomer B, wherein the monomer A is acrylamide, and the monomer B is ester matter. The cross-linking agent is one of or a mixture of two or more formaldehyde, phenolic resin, resorcinol, hexamethylene tetramine, paraformaldehyde and polyethyleneimine. The temperature-resisting salt-tolerant high-temperature self-cross-linking onsite polymerization water plugging gel spontaneously produces cross-linking polymerization under the condition of high temperature, an initiator is not added, the gelling time can be controlled to be 2 hours to 28 hours at the temperature of 120 DEG C, the water plugging gel can be directly prepared by high-salinity water, the gelling strength can be up to the visual inspection code level I, and synaeresis does not occur after 90 days. The temperature-resisting salt-tolerant high-temperature self-cross-linking onsite polymerization water plugging gel is low in initial viscosity, has the advantages of being few in components, good in instant solubility and pumping injection performance, high plugging strength, good in thermohaline stability, low in cost and the like and has wide application prospect on the aspect of high-temperature high-salinity oil reservoir profile control water plugging.

The invention belongs to the field of oilfield chemistry related to the enhanced oil recovery technique, and particularly relates to intercalation delay in-situ polymerization water shutoff gel for a high-temperature oil reservoir. The intercalation delay in-situ polymerization water shutoff gel is prepared from, by mass, 6-8% of host agent, 1-2% of cross-linking agent, 2-8% of intercalation host agent, 0.06-0.1% of initiator, 0.01-2% of gelling regulating agent, and the balance water. The intercalation delay in-situ polymerization water shutoff gel has the advantages that the fast dissolving property of components in the gel system is good, and liquid dosing is convenient; the construction technology is simple, pumpability is high, and injectivity is high; gelling time can be controlled to be 4-30 h at 130 DEG C; long-term stability is high at high temperatures, and synaeresis and strength reduction does not occur on the gel within three months; influence on gelling performance is small, leak-off prevention can be well achieved, and the gel can be used for water shutoff of fractured reservoirs.

The invention relates to compound type temperature-resisting viscoelastic self-diverting acid as well as a preparation method and application thereof. The self-diverting acid is prepared from 1.0 to 7.5 weight percent of thickening agent A, 1.0 to 7.5 weight percent of thickening agent B, 32.2 to 75.5 weight percent of concentrated hydrochloric acid, 1.0 to 4.0 weight percent of corrosion inhibitor, 1.5 to 5.0 weight percent of ferric ion stabilizer, 1.5 to 4.0 weight percent of clay stabilizer and the balance of water; the thickening agent A is prepared from one or more of cocamidopropyl betaine, octadecyl dimethyl hydroxypropyl betaine and lauramidopropyl betaine; the thickening agent B is prepared from one or more of erucamide propyl betaine, docosyl dimethyl betaine and erucamide propylsulfobetaine. The self-diverting acid disclosed by the invention is suitable for a carbonate reservoir with the temperature of 80 to 120 DEG C.

The invention relates to dispensing technology, and in particular to a multi-axis rotary dispensing device for a buzzer. The device comprises a frame, a power distribution control box and a conveyingdevice disposed on the frame, the conveying device includes a feeding track and a conveyor belt, the side surface of the feeding track is provided with a shifting fork feeding mechanism, the upper left portion of the conveyor belt is provided with the multi-axis rotating mechanism matched with the shifting fork feeding mechanism, the left side of the multi-axis rotating mechanism is provided witha dispensing mechanism, the frame is provided with a drying box, a cooling fan and an unloading mechanism in the direction of the conveyor belt, and the conveying device, the shifting fork feeding mechanism, the multi-axis rotary mechanism, the dispensing mechanism, the drying box, the cooling fan and the unloading mechanism are electrically connected with the power distribution control box; the automatic feeding is completed through the shifting fork feeding mechanism, and the multi-axis rotary mechanism is used for taking materials, the dispensing is automatically completed by cooperating with the dispensing mechanism, the working efficiency is high, and dispensing effects of products are good.

An environment-protecting type rubber wood protection (pest-resisting and fungi-resisting) method is characterized by using 2.5%-5.0% borax liquor to implement vacuum pressure treatment of fresh rubber wood, and when the said wood is treated, the used vacuum degree is -0.07--0.09 MPa, pressure is 1.1-1.3 MPa, the pressurizing time is dependent to the thickness of wood, and the pressurizing time of 3.0-8.5 cm thickness is 30-70 min. After the wood is treated, it can be prompty stached and dried in the air for 8-12 days, then dried in drying kiln to make its water content be reduced to 10%-8%. The wood treated by the said invention can prevent moth damage, and does not produce blue stain, so it is suitable for making furniture, and its used chemical preparation is low in toxicity, and low in cost, and its preparation is simple.

The invention discloses a quantitative negative-pressure liquid medicine dispensing device which comprises a bottom table. A slide rail which is perpendicular to the horizontal plane is arranged above the bottom table, a needle is movably assembled on the slide rail and is mounted on a medicine storage tube, and the medicine storage tube is connected with a negative-pressure device; a rotatable medicine dispensing disc is mounted on the bottom table, a plurality of insertion holes are circumferentially formed in the medicine dispensing disc, the centers of the insertion holes are positioned on the same circle, and projection of the needle on the medicine dispensing disc falls on the circle. The quantitative negative-pressure liquid medicine dispensing device has the advantages that the quantitative negative-pressure liquid medicine dispensing device which is a medicine dispensing appliance is a novel medicine dispensing tool and is safe, speedy and convenient in medicine dispensing procedures, and an effective auxiliary utensil can be provided for medical staffs.

The invention provides clean polymer-free carrier fluid, which is characterized by mainly comprising the following components in percentage by weight: 0.5 to 15 percent of surfactant, 0.2 to 2 percent of cross-linking aid, 0.2 to 5 percent of stabilizing agent and the balance of solvent, wherein the surfactant is long-chain betaine surfactant, the cross-linking aid is organic acid salt, the stabilizing agent is long-chain alcohol, and the solvent is small molecular alcohol solution. The clean polymer-free carrier fluid effectively overcomes the defects of low effective content of primary agents and difficult liquid preparation, solves the problem of non-uniform dispersion of a propping agent, and has the characteristics of strong viscous elasticity, high suspension property, multiple functions, expanding prevention and difficult deterioration.

The invention discloses an efficient hook face dispensing machine, and suitable for adhesive dispensing sealing of an assembling gap between a battery and a main body of a Bluetooth headset. The efficient hook face dispensing machine comprises conveying guide rails, a positioning base, a recognition device and a dispensing device which are electrically connected with a control system. The dispensing device comprises a dispensing head and a dispensing head driving device. The positioning base is arranged on the conveying guide rails in a sliding mode. The main body is arranged on the positioning base, and the dispensing face of the dispensing area and the conveying faces of the conveying guide rails form an acute angle included angle to be arranged. The recognition device and the dispensing device are arranged above the conveying guide rails, and the recognition device and the dispensing face are perpendicularly arranged. The recognition device can recognize three-dimensional coordinates of the dispensing area and further feed recognition information back to the control system. The dispensing head driving device can drive the dispensing head to make rectilinear motion and rotational motion under the indication action of the control system, an angled needle of the moving dispensing head stretches into an enclosure, and flat cables are avoided so that the exposed portion of the dispensing area can be dispensed. The complete machine is simple and compact in structure, high in efficiency, low in cost, reliable in quality and high in precision.

The invention provides a visco-elastic acid-based fracturing fluid and a preparation method thereof. The visco-elastic acid-based fracturing fluid comprises, by weight, 2.0 to 7.5 parts of a thickening agent, 50.0 to 75.0 parts of concentrated hydrochloric acid with a concentration of 31 to 37 wt% , 0.5 to 2.5 parts of counter ion salt, 0.5 to 2.5 parts of a corrosion inhibitor and 1.5 to 5.0 parts of an iron ion stabilizing agent. The visco-elastic acid-based fracturing fluid is highly acid, resistant to high temperature, high in viscosity, capable of realizing automatic gel breaking and freeof residues in a gel breaking solution, and has the advantages of simple raw materials, low cost, convenient fluid preparation, etc.

The invention provides a special makeup remover for minimizing pores and moistening skin. The makeup remover is prepared from raw materials of components in percentage by weight as follows: 5%-20% of a surfactant, 5%-20% of a moisturizer, 2%-5% of salicylic acid, 0.5%-2% of a pot marigold extract, 0.5%- 1% of a seaweed extract, 1%-3% of a tea extract, 1%-3% of pentapeptide, 0.5%-2% of vitamin A, 0.01%-0.02% of methylisothiazolinone, 0.2%-1% of a coenzyme Q10, 0.1%-0.5% of sodium citrate and the balance of deionized water. The makeup remover is prepared from four components including salicylic acid, the pot marigold extract, the seaweed extract and the tea extract which have effects of shrinking and minimizing the pores, the four components are matched for use and have the more excellent effect than one single component, the pore minimizing effect is very significant, and besides, the makeup remover removes makeup thoroughly, is free of residues, irritation and oily feeling and can effectively prevent the skin from ageing, moisten and tender the skin and smooth the pores. Meanwhile, the invention further provides a preparation method of the makeup remover.

The invention discloses a double-station dispensing machine used for an LCD (Liquid Crystal Display) and a dispensing method thereof. The double-station dispensing machine comprises a rack, an X-axis directional material charging assembly, an X-axis directional material discharging assembly, a Y-axis directional dispensing platform assembly I, a Y-axis directional dispensing platform assembly II, an X-axis directional material feeding assembly I, an X-axis directional material feeding assembly II, an X-axis directional dispensing needle assembly I, an X-axis directional dispensing needle assembly II and a glue storage barrel assembly; materials are charged through the X-axis directional material charging assembly; the materials are conveyed onto the Y-axis directional dispensing platform assembly I or the Y-axis directional dispensing platform assembly II through the X-axis directional material feeding assembly I; the X-axis directional dispensing needle assembly I and the X-axis directional dispensing needle assembly II are matched with the Y-axis directional dispensing platform assembly I and the Y-axis directional dispensing platform assembly II so that the materials on the Y-axis directional dispensing platform assembly I and the Y-axis directional dispensing platform assembly II are dispensed; the X-axis directional material feeding assembly II is used for conveying the dispensed materials onto the X-axis directional material discharging assembly and the materials are output through the X-axis directional material discharging assembly.

The invention discloses a surfactant for a fracturing fluid and a preparation method and the fracturing fluid thereof, wherein the surfactant is a multi-branched twin-chain ampholytic surfactant, the structural formula of which is as follows: FORMULA, wherein R is a linear or branched alkyl of C13-C21, n is an integer from 3 to 6 and p is an integer from 2 to 4. The fracturing fluid prepared by the surfactant disclosed by the invention is low in cost and high in temperature resistance.

The invention relates to an intelligent shower set, which comprises a frame body, wherein a wall fixing device is arranged on the back of the frame body, a shower mechanism is mounted on the frame body, an electric water heater and shower heads are arranged on the frame body, and the electric water heater comprises a water inlet end connected with an external water pipeline and a hot water outputend connected with the shower heads. The intelligent shower set is provided with the electric water heater, and the water heater and a shower massage device are combined into a whole; therefore, whenthe intelligent shower set is arranged in a bathroom, the functions of bathing, massaging, scrubbing and the like can be realized without an independent water heater, thereby effectively saving spacein the bathroom and further realizing requirements of people on multiple functions of the shower set through the reasonable structure; and a top shower head and a handheld shower head are respectively arranged in the intelligent shower set, and the people can use the shower heads according to needs.

The embodiment of the invention discloses a method for distributing WLAN (Wireless Local Area Network) access channels. The method comprises the following steps of: receiving interference detection information sent by wireless access points; and according to the interference detection information, distributing the access channels and sending the distributed access channels to the corresponding wireless access points. The embodiment of the invention also discloses wireless access control equipment, wireless access point equipment and a system for implementing the distribution of the WLAN access channels. By the technical scheme disclosed by the embodiment of the invention, the influence of interference signals on the wireless access can be effectively improved or weakened and the integral efficiency of the wireless access is improved.

The invention discloses safe pore refining type cleansing oil. The safe pore refining type cleansing oil is prepared from, by weight, 20-70% of natural plant oil, 5-35% of surface active agent of plant origin, 5-15% of tartaric acid, 3-6% of plant essential oil, 0.5-2% of calendula extract, 0.5-1% of seaweed extract, 1-3% of tea extract, 0.1-0.6% of rosemary leaf extract and 0.1-0.6% of anti-allergy agent with plant components, and the total percentage composition is 100%. Natural plant oil which is safe, mild and not irritant is used as the main ingredient of the formula, so that damage caused by the product to the body is reduced; besides, the cleansing oil contains tartaric acid, calendula extract, seaweed extract and tea extract all of which have a pore refining function, so that a better effect can be realized through mixing ratio optimization and cooperation of the four components compared with single component, and the pore refining effect is quite remarkable.

The invention relates to an optical path assembly auxiliary device of a three-axis integral optical fiber gyroscope. In the optical path assembly auxiliary device, a horizontal rotary plate is connected with a base by a clamping spring through a shaft A, the horizontal rotary plate can rotate relative to the base, the horizontal rotary plate is connected with an angle positioning block A through a short rotary shaft A, the horizontal rotary plate can rotate relative to the angle positioning block A, the horizontal rotary plate is connected with an angle positioning block B through a short rotary shaft B, the horizontal rotary plate can rotate relative to the angle positioning block B, a pitch rotary plate is connected with the horizontal rotary plate through a long rotary shaft A and a long rotary shaft B, the pitch rotary plate can rotate relative to the horizontal rotary plate, an angle rotary plate is connected with the pitch rotary plate by a clamping spring through a shaft B, the angle rotary plate can rotate relative to the pitch rotary plate, and the angle rotary plate is provided with a hole matrix for mounting and fixing a three-axis integral optical fiber gyroscope body. The optical path assembly auxiliary device aims to provide fixing equipment and gesture adjusting equipment for the assembly of the optical path of the three-axis integral optical fiber gyroscope, the assembly efficiency of the optical path is improved, and the batch production of the gyroscope is promoted; additionally, the risks of breakage of an optical device tail fiber and damage of an optical device, due to false operation of operators, are reduced during the optical path assembly process, and the qualified rate of the gyroscope in production is improved.

The invention provides an electroplating waste water zero discharge system and relates to the technical field of sewage treatment. The bottoms of a nickel-containing waste water regulating pool, a nickel-containing waste water PH regulating pool, a nickel-containing waste water buffer pool, a nickel-containing waste water coagulating pool, a nickel-containing waste water flocculating pool and a nickel-containing waste water settling pool are connected with a nickel-containing sludge concentration pool through pipelines; the nickel-containing sludge concentration pool is connected with a nickel-containing sludge compressor; concentrated liquid in the nickel-containing sludge compressor is connected with the nickel-containing waste water regulating pool through a pipeline; a phosphorus-containing waste water regulating pool, a phosphorus-containing waste water PH regulating pool, a phosphorus-containing waste water reaction pool, a phosphorus-containing waste water coagulating pool, a phosphorus-containing waste water flocculating pool and a phosphorus-containing waste water settling pool are connected through pipelines. The electroplating waste water zero discharge system is high inremoval rate of pollutants and stable to operate, reasonably utilizes an advanced membrane technology, reduces membrane blockage, guarantees the service life of the membrane, increases the water production rate of the membrane, can reduce evaporation cost and has higher practicability.

The invention discloses a method for obtaining a high-color-gamut white-light LED through red-light fluorescent powder. The red-light fluorescent powder is red-light fluorescent powder MAlSiO4:Eu3+. The method includes the following steps of firstly, weighing different types of fluorescent powder according to the transmitting wavelength of a chip, and adding the fluorescent powder to mixed package resin, wherein the chip is an ultraviolet chip or a blue-light chip; secondly, evenly stirring a mixture obtained in the first step, dropwise adding the mixture into an LED support cup shell with the chip; thirdly, curing the package resin to obtain a white-light LED lamp bead. The adopted red-light fluorescent powder is red-light fluorescent powder MAlSiO4:Eu3+ and has high color purity, the color gamut value of the LED backlight lamp bead can be remarkably increased to be 88% or above, and after the high-color-gamut white-light LED is used for a liquid crystal backlight, the color revivification degree of a display screen can be greatly improved.

The invention discloses a glue dispensing device of a hollow cup motor rotor with the advantages of simple structure, automatic glue dispensing and high glue dispensing efficiency. The device comprises a servo translation mechanism, a hollow cup motor rotor rotating mechanism and an automatic glue dispensing device; the servo translation mechanism is provided with a movable slide block and a servo driving device; the movable slide block has translation motion degrees of freedom in the horizontal direction and / or the vertical direction under the effect of the servo driving device; the automatic glue dispensing device is fixedly arranged on the movable slide block; the hollow cup motor rotor rotating mechanism is fixedly arranged below the servo translation mechanism; the hollow cup motor rotor rotating mechanism comprises a glue dispensing tool, a power device for driving the glue dispensing tool to rotate, and a limiting device; the glue dispensing tool is provided with a strip groove with the width matched with the outer diameter of the hollow cup motor rotor; the limiting device is provided with an actuation end for limiting rotation of the hollow cup motor rotor on the glue dispensing tool; and the actuation end is positioned in the strip groove. The device can realize full-automatic glue dispensing.

The invention discloses a temperature-resistant, salt-resistant, high-temperature self-crosslinking in-situ polymerized water blocking gel, which mainly consists of a main agent, a crosslinking agent and brine, and its mass percentage is: 4-6% of the main agent, 1% of the crosslinking agent ~2%, the rest is brine; the main agent is composed of monomer A and monomer B, monomer A is acrylamide, and monomer B is an ester; the crosslinking agent is formaldehyde, phenolic resin, resorcinol, six Methylenetetramine, paraformaldehyde, polyethyleneimine, one, two or a mixture of two or more. The present invention can spontaneously cross-link and polymerize under high temperature conditions without adding an initiator, and the gelation time at 120°C can be controlled within 2 to 28 hours. It can be directly prepared with high-salinity water, and the gel strength can reach the visual code I level. Syneresis did not occur for 90 days. The invention has the advantages of low initial viscosity, few components, good instant solubility, good pumping performance, high plugging strength, good hot-salt stability, and low cost, and has broad application in profile control and water plugging of high-temperature and high-salt reservoirs. Application prospect.

The invention discloses organic polybasic carboxylic acid and diverter acid applicable to high-temperature carbonate reservoir acidification and a preparation method thereof. The organic polybasic carboxylic acid is tetraacetic glutamate and has a chemical structural formula represented by a formula shown in a drawing. The organic polybasic carboxylic acid disclosed by the invention has the characteristics of high-temperature resistance and no generation of precipitates and residues.

The invention discloses an automatic lifting, spraying, disinfecting and sterilizing device for air conditioner air outlet and return air inlet. The device comprises a base, a telescopic supporting mechanism arranged on the base and a fixing plate arranged on the telescopic supporting mechanism, wherein the fixing plate is provided with a disinfectant box with an air inlet, a liquid adding openingand a liquid outlet, an atomizing spray head is connected to the liquid outlet of the disinfectant box in a sealed mode, a sealing cover is arranged on the liquid adding opening of the disinfectant box, and the air inlet of the disinfectant box is connected with a compressed air source arranged on the base through a hose. Spraying height is adjusted through the telescopic supporting mechanism, the atomizing spray head is aligned to a target position, the compressed air source is switched on, the base is moved, an air outlet and a return air inlet of a central air conditioner can be disinfected and sterilized, climbing operation of cleaning personnel is not needed, and use is more convenient and flexible.

The invention belongs to the technical field of soil remediation, particularly discloses a preparation device for a saline soil microbial repair agent. Aiming at the problems of need of artificial batching, a material mixing device and complicated sterilization procedures in the preparation process of the microbial repair agent, the preparation device is characterized by comprising an outer tank body, wherein an outer tank body door is connected to inner wall of one side of the outer tank body through hinges; supporting rods are welded on the inner wall of bottom of the outer tank body; a second supporting platform is welded on the top outer walls of the supporting rods; a first through hole is formed in the top of the outer tank body and a hopper is welded on the inner wall of the first through hole; a hopper box is welded on the top outer wall of the outer tank body; three through holes are formed in the outer wall of the top of the hopper box. The preparation device for the saline soil microbial repair agent, disclosed by the invention, has the advantages that automatic liquid distribution is realized, so that labor force is reduced; the liquid distribution is better facilitated, and composite liquid can be fully mixed; secondary cooling after sterilization is avoided, so that sterilization procedures are simplified and culture liquid is prevented from being infected again.

The invention discloses a cleaning sand-carrying liquid. The cleaning sand-carrying liquid is characterized by consisting of the following substances according to the mass ratios: 25-30 parts of a viscoelastic surfactant, 12-15 parts of counter-ions, 10-20 parts of a solvent and 100 parts of water. The cleaning sand-carrying liquid in the technical scheme adopted in the invention has the followingadvantages of single agent, convenient liquid preparation, no macromolecular substances, association and thickening, low gel breaking viscosity, and outstanding anti-swelling and flowback performance.

The invention provides a stepless variable-viscosity on-site hydraulic fracturing method free of preparation of slick water. The method comprises the steps that construction design of all stages of fracturing is conducted according to limiting conditions of a fracturing construction site; according to the formation water mineralization degree-drag reducer concentration-drag reduction rate relation chart and the formation water quality of the fracturing transformation interval, the drag reducer concentration range is determined; according to the flow velocity-drag reducer concentration-drag reduction rate relation chart, the displacement of the prepad fluid construction stage and the displacement of the displacing fluid construction stage under the condition that the wellhead pressure is certain are determined; according to the flow velocity-drag reducer concentration-drag reduction rate relation chart, the drag reducer concentration-viscosity-viscoelasticity relation chart and the construction displacement-viscoelasticity-sand ratio relation chart, the displacement, the sand ratio, the viscosity of the fracturing fluid and / or the drag reducer concentration in the sand-carrying fluid construction stage under the condition of certain wellhead pressure are determined; and according to the determined result, prepad fluid and sand-carrying fluid are alternately injected into all the fractured interval sections for multiple times, and displacement fluid is injected into the fractured interval sections so that the sand-carrying fluid in the shaft can be pressed into the fractures.

The invention discloses a method for preparing a high-color-gamut white-light LED through employing green-light fluorescent powder, and the method comprises the steps: 1), weighing different fluorescent powder according to a transmission wavelength of a chip, and adding the fluorescent powder to mixed packaging glue, wherein the chip is an ultraviolet chip or a blue-light chip; 2), enabling the mixture, obtained at step 1), to be stirred uniformly and then to be dripped into an LED support cup housing provided with the chip; 3), carrying out the solidifying of the packaging glue, and obtaining a white-light LED lamp bead. The green-light fluorescent powder employed in the method is MAlSiO4: Er3+ green-light fluorescent powder, is high in color purity, and can remarkably improve the color gamut value of an LED backlight lamp bead to 85% or more. The white-light LED is used for liquid crystal backlight, and can enable the color reduction degree of a display screen to be greatly improved.