48results about How to "Less time and energy consumption" patented technology

The invention discloses a pollution-free low-cost technology for preparing graphene oxide. The technology comprises the following steps: 1, mixing graphite with a strong acid to infiltrate graphite, adding a strong oxidant, and continuously stirring to oxidize and exfoliate graphite layers; 2, centrifuging the obtained reaction solution, recovering the strong acid to be used in a next reaction, slowly pouring the obtained muddy product into deionized water, stirring, washing by using dilute hydrochloric acid, repeatedly cleaning by using deionized water, and centrifuging to obtain monolayer graphene oxide; 3, introducing ammonia gas into wastewater until the pH value approaches 7 to obtain an inorganic fertilizer containing nitrogen, potassium, iron and phosphorus; and 4, concentrating an aqueous solution of graphene oxide, and drying to obtain graphene oxide with high density and high specific surface area. The technology has the advantages of simple, safe and controllable preparation process, less time and energy consumption, no explosion danger and no pollution. The cycle use of concentrated sulfuric acid in the raw material-to-fertilizer process makes all raw materials and elements fully used, so the preparation cost of graphene oxide is greatly reduced.

The invention discloses a brewing method of kiwi-flavored sweet corn wine. The brewing method comprises the steps as follows: selecting fresh brewing sweet corn ears which are pollinated 25 days before, adding water, homogenizing to obtain sweet corn juice, and cleaning and homogenizing green kiwi fruit to obtain kiwi raw juice; mixing 75-85% of brewing sweet corn juice with 25-15% of pea juice to obtain a distiller's yeast culture medium, inoculating with yeast subjected to slant culture, and carrying out progressive amplification culture in distiller's yeast seeding tanks to obtain liquid distiller's yeast; adding the kiwi raw juice, the brewing sweet corn juice and the liquid distiller's yeast into a fermentation tank, fermenting at 15-20 DEG C for 21-14 days, harrowing and supplementing white granulated sugar with a ratio of 8.5-17% on the 7th -10th day of fermentation, filtering, and carrying out microwave treatment on the filtrate to obtain kiwi-flavored sweet corn wine base; pumping the kiwi-flavored sweet corn wine base into an aging tank to be stored at 16 DEG C below for more than 18 months; and adding sweet corn Brandy of which the amount accounts for 3-5% the weight ofthe aged sweet corn wine to obtain the kiwi-flavored sweet corn wine. The obtained kiwi-flavored sweet corn wine has kiwi fruit aroma and rice wine mellowness, is moderate in alcohol degree, mellow, elegant and nutrient, and satisfies the fashion of health-care driving.

The invention discloses a sodium vanadium fluorophosphate/graphene composite, a preparation method thereof and use thereof. The sodium vanadium fluorophosphate/graphene composite is a porous submicron sphere structure which comprises a plurality of nanosheets, and gaps are between the nanosheets. The preparation method comprises a step of dispersing graphene oxide in deionized water to obtain a graphene oxide aqueous solution, a step of uniformly mixing vanadium acetylacetonate, phosphoric acid, sodium fluoride, ethanol and acetone in a predetermined ratio to obtain a mixed solution, a step of mixing the graphene oxide aqueous solution and the mixed solution in a set ratio and then placing the graphene oxide aqueous solution and the mixed solution in an autoclave at a temperature of 120 DEG C for hydrothermal reaction, a step of sequentially washing, centrifuging and drying a hydrothermally reacted product to obtain the sodium vanadium fluorophosphate/graphene composite. Since the sodium vanadium fluorophosphate/graphene composite has good electrical conductivity and stable structure, the sodium vanadium fluorophosphate/graphene composite is suitable for being applied as a positive electrode material for a sodium-ion battery.

The invention relates to a mixing and coating technology for production of positive and negative pole pieces of a lithium ion battery. Compared with the traditional technology, the technology can simplify a mixing process, and can reduce the production time and the production energy consumption. A mixing procedure is that various raw materials are mixed simply, and then the roughly mixed raw materials are subjected to high-temperature short-time fine mixing by an extrusion machine. The materials coming out of the mixing procedure are sent to a high-temperature coating machine for coating, and then enter a shortened oven for solvent removal.

The invention discloses a sulfydryl-modified graphene oxide and a preparation method thereof. According to the sulfydryl-modified graphene oxide, a modified graphene oxide product is obtained by introducing sulfydryl to a graphene oxide lamellar structure. The preparation method comprises the following steps: mixing a graphene oxide solution, a solvent and triethylamine evenly; adding thiocarboxylic acid or sulfo-carboxylate under argon protection and reacting at 10-70 DEG C for 1-7 days to obtain a sulfydryl-modified latent sulfur graphene oxide; centrifugally washing the sulfydryl-modified latent sulfur graphene oxide with deionized water to obtain the sulfydryl-modified graphene oxide; or mixing the sulfydryl-modified latent sulfur graphene oxide with diluted hydrochloric acid evenly, and centrifugally washing with the deionized water to obtain the sulfydryl-modified graphene oxide. The sulfydryl-modified graphene oxide is simple in preparation process, safe, controllable, and low in time consumption and energy consumption; and according to the prepared sulfydryl-modified graphene oxide, the synthesis means and the application field of graphene derived materials and sulfocompounds are further expanded.

The invention provides a clutch reliability improving system. The main reason of failure of a clutch includes that the clutch with a clutch ring is used continuously and an electromagnetic coil is over hot. By the clutch reliability improving system, a loaded pull-in voltage can be adjusted, and the pull-in reliability of the clutch is ensured by guaranteeing a redundant value of an electromagnet on the improving ability of the clutch ring.

The invention provides a method for preparing a lithium ionic sieve adsorbent. The method comprises the following steps: co-acting a raw material which is an aqueous solution of a lithium salt and a manganese salt by microwaves and ultrasonic waves to obtain a co-precipitation product, calcining the co-precipitation product to obtain a lithium ionic sieve precursor, and carrying out acid leachingon the lithium ionic sieve precursor to obtain the lithium ionic sieve adsorbent. The lithium salt and manganese salt mixed aqueous solution is used as the raw material, and precipitates under the co-action of the microwaves and the ultrasonic waves, the precipitate is calcined to obtain the lithium ionic sieve precursor with an ideal structure, a high purity and a high lithium content, and the lithium ionic sieve precursor is processed to obtain the lithium ionic sieve adsorbent. The lithium ionic sieve adsorbent has the advantages of stable structure and high adsorption capacity, and the method has the advantages of short time, low energy consumption and high controllability, and is of great significance to recycling lithium metal resources.

The invention provides a clutch reliability improving system. The main reason of failure of a clutch includes that the clutch with a clutch ring is used continuously and an electromagnetic coil is over hot. By the clutch reliability improving system, a loaded pull-in voltage can be adjusted, and the pull-in reliability of the clutch is ensured by guaranteeing a redundant value of an electromagnet on the improving ability of the clutch ring.

As it is firstly found that the main reason for failure of a clutch is overheating of an electromagnetic coil due to the fact that the clutch with a clutch ring is used contentiously, the invention provides a clutch reliability improving system. By the system, loaded pull-in voltage can be adjusted, and reliability of clutch pull-in is ensured by guaranteeing redundancy of lifting force of an electromagnet on the clutch ring.

The invention discloses an optimized production method and production line of cedarwood essential oil. The production line comprises a boiler, a steam overheating device, a block cutting device, a slicing device, a smashing device, a stirring device, a wall breaking device, a distillation tower, a cooling tower and an oil-water separation device. The steam pipeline is communicated with a steam inlet of the distillation tower after being heated by the steam overheating device; the cutting device, the slicing device, the crushing device and the stirring device are sequentially connected through a conveying device; a gas outlet of the distillation tower is communicated with a gas inlet of the cooling tower; a condensate outlet of the cooling tower is communicated with an inlet of the oil-water separation device; the wall breaking device is a popcorn machine; the output end of the stirring device is connected with the feeding end of the corn popper through a conveying device; the discharging end of the corn popper is connected with the feeding hole of the distillation tower through a conveying device. The production method is carried out by adopting the production line, and a finished product is prepared through the steps of powder preparation, mixing, wall breaking, distillation, cooling and oil-water separation. Wall breaking is more thorough, working hours are shorter, energy consumption and production cost are lower, and the yield is higher.