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103results about How to "Fast dissolution" patented technology

Solar water purifier for lakes and water purification method thereof

The invention mainly discloses a solar water purifier for lakes and a water purification method thereof. According to the technical scheme, the solar water purifier comprises a main body, a purification system, an energy system, a drive unit, a lighting device and a fixation device. The energy system comprises a solar cell panel, a storage battery and a charging panel. An oxygenation chamber, a disinfection chamber and a purifying chamber are arranged inside the main body. An ozone generator, an air compressor, a bubble generator and an aerator pipe are disposed inside the oxygenation chamber. A drug blending tank is arranged inside the disinfection chamber. A purifier is disposed inside the purifying chamber. When the device operates, installation and pilot run of the device are firstly carried out. After successful pilot run, the device is put into a lake. By mobile positioning of the drive unit, a water body undergoes disinfection, oxygenation and purification. The energy system provides energy. Thus, energy is self-sufficient. The solar water purifier has a simple structure, is low-cost and clean. By various purification methods, purification efficiency is high. By the floating and stationary combined design, position of the device can be controlled freely. Thus, repair rate of water body is high. The solar water purifier is easy to operate.
Owner:ZHEJIANG UNIV OF WATER RESOURCES & ELECTRIC POWER

Continuous water-fertilizer-integrated solid fertilizer applying device

The invention relates to a continuous water-fertilizer-integrated solid fertilizer applying device. The device comprises a fertilizer adding device, a mother liquor tank, an irrigation water pipe, a fertilizing pipe, a water inlet pipe, a bracket and a control system, wherein a fertilizer discharging port of the fertilizer adding device is connected with the top of the mother liquor tank through afertilizer adding pipe, the fertilizer adding pipe is connected with the top of the mother liquor tank through a plurality of fertilizer branch pipes, the water inlet pipe is communicated with a plurality of sprayers arranged on the top of the mother liquor tank, the fertilizing pipe is sequentially provided with a fertilizing pump, a fertilizing electromagnetic valve and a fertilizing flowmeter,and the fertilizing branch pipes are uniformly communicated with the irrigation water pipe. The continuous solid fertilizer applying device has the advantages that the speed of dissolving and mixingthe solid fertilizer is high, fertilization liquid is uniformly mixed with irrigation water, and the mixing speed is high; by directly detecting the concentration of the fertilizer in the water afterfertilization, fertilization control is more accurate, adjustment is more rapid, and the precision of fertilization and irrigation can be effectively improved.
Owner:FARMLAND IRRIGATION RES INST CHINESE ACAD OF AGRI SCI

Method for wet separation of electronic components in discarded printed circuit board and tin stripping agent

ActiveCN105624681AConditions that affect dissolutionFast dissolutionProcess efficiency improvementChemistryAqueous solution
The invention discloses a method for wet separation of electronic components in a discarded printed circuit board. The method comprises the following steps that strong base and a complex agent are dissolved into water to obtain a solution I, wherein the concentration of the strong base is 150-300 g/L, and the concentration of the complex agent is 20-40 g/L; the discarded printed circuit board is cleaned, dried and then placed into the solution I, an oxidizing agent is added into the solution I at the flow rate accounting for 0.5-2.5% of the volume of the solution I every minute on the condition of 30-70 DEG C, the mixture is stirred, is subjected to a reaction for 20-40 minutes and is filtered, and then the electronic components are separated from the printed circuit board. The method has the advantages that the separation speed is high, little damage is caused to the electronic components, and the method is suitable for industrial application. The invention further discloses a tin stripping agent. The tin stripping agent comprises an aqueous solution with the strong base and the complex agent dissolved therein and the oxidizing agent, wherein the oxidizing agent is continuously added to the aqueous solution containing the strong base and the complex agent when the tin stripping agent is used. The tin stripping agent is simple in ingredient and little in corrosivity, and valuable metals can be extracted and recycled easily.
Owner:HUNAN JIANG YE MECHANICAL & ELECTRICAL TECH CO LTD

Medical foot bath medicine mixer

The invention relates to a mixer, in particular to a medical foot bath medicine mixer. The invention aims at solving the technical problem to provide a medical foot bath medicine mixer which does notinfluence the foot bath of people and can save time. According to the technical scheme, the medical foot bath medicine mixer comprises a connecting plate, an annular slide rail, slide blocks, a crossbar, a handle, a connecting rod, an installing rod and the like; and the right side of the connecting plate is provided with a clamping mechanism for clamping a bath drum, the left side of the connecting plate is connected with the annular slide rail with a guide effect by virtue of a bolt, two slide blocks are arranged on the annular slide rail in a sliding manner, the crossbar is arranged betweenthe two slide blocks, the left side of the top of the crossbar is connected with the handle, and the bottom middle part of the crossbar is connected with the connecting rod. A circular box body can be covered by virtue of a cover plate, so that the medicine can be prevented from dropping into the bath drum and from influencing the foot bath of people; and by virtue of forward-backward alternativerotation of a piston block, the circular box body can continuously move up and down, so that the medicine can be rapidly dissolved in the hot water, and the time can be saved.
Owner:张秀珍 +1

Method for recovering gold and silver in gold, silver and copper alloy scrap

The invention relates to a method for recovering gold and silver in a gold, silver and copper alloy scrap. The method comprises the following steps of firstly, placing the gold, silver and copper alloy scrap in an ultrasonic reactor, adding concentrated nitric acid to the ultrasonic reactor, and after ultrasonic leaching filtration, obtaining a filtrate and a filter residue; secondly, using an ionexchange separation method for ion exchange separation to obtain a silver nitrate solution; thirdly, using an electrowinning method to recover silver in a silver nitrate solution; fourthly, dissolving the filter residue in aqua regia, diluting after the nitrate removal, adjusting the pH with sodium hydroxide, adding sodium bisulfite until no precipitation produces, boiling, reacting until a solution supernatant become colorless, filtering, washing the precipitate with deionized water to neutral, drying, and obtaining a sponge gold. The method not only solves the problem that the gold, silverand copper alloy scrap is difficult to dissolve, but also shortens the recovery process of the gold, silver and copper alloy scrap, and the recovered gold and silver can be directly used for the preparation of gold, silver and copper alloy materials.
Owner:西安诺博尔稀贵金属材料股份有限公司

Soluble microneedle patch containing purified protein derivatives of tuberculin, and preparation method of soluble microneedle patch

The invention relates to a soluble microneedle patch containing purified protein derivatives of tuberculin, and a preparation method of the soluble microneedle patch. The soluble microneedle patch comprises a substrate and a needle body, wherein the substrate is prepared from a first polymer material; the needle body is prepared from the purified protein derivatives of tuberculin and a needle bodyshaping material; the weight of the purified protein derivatives of tuberculin accounts for 0.04-0.10% of the total weight of the needle body; the needle body shaping material is prepared from secondpolymer materials and small molecule materials, wherein the second polymer materials are at least one selected from hyaluronic acid or sodium salt thereof, hydroxyethyl starch, polyvinylpyrrolidone and polyethylene glycol, and the small molecule materials are at least one selected from water-soluble small molecule weight sugar, slightly acidic water-soluble amino acids and slightly acidic water-soluble salts; the mass ratio of the second polymer materials to the small molecule materials is equal to 3 to (8 to 1). The soluble microneedle patch has good puncture strength and rapid dissolution velocity in vivo.
Owner:广州新济生物医药研究院有限公司 +1

Electrochemical method for accelerating dissolution of soluble bridge plug

The invention provides an electrochemical method for accelerating dissolution of a soluble bridge plug. The electrochemical method comprises the specific steps that 1, as for the situation that the inner wall of a casing is subjected to internal corrosion prevention, 5-8 m<3> of hydrochloric acid or sulfuric acid with the mass percent being 10-15% is injected at the displacement of 1-2 m<3>/min firstly, then 5-8 m<3> of guanidine gum base liquid is introduced for isolation, and replacing is conducted with clear water to the bridge plug position; as for the situation that the inner wall of thecasing is not subjected to internal corrosion prevention, a saturated strong electrolyte solution is injected at the displacement of 1-2 m<3>/min firstly, then a gas and heat production agent A, guanidine gum base liquid and a gas and heat production agent B are pumped sequentially, and replacing is conducted with clear water to the bridge plug position. Through the method of electrochemistry (a primary battery and an electrolytic cell), the potential difference of various metals is utilized, by giving a certain current to the casing, a soluble ball and the soluble bridge plug are rapidly dissolved, the diameter of a wellbore is recovered in time, and the electrochemical method is of great practical significance for rapid production or rapid fracturing construction of the next section.
Owner:PETROCHINA CO LTD
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