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2400results about How to "Prevent floating" patented technology

Method for supplementing lithium for negative electrode of lithium ion battery

The invention belongs to the technical field of lithium ion batteries, in particular to a method for supplementing lithium for a negative electrode of a lithium ion battery. The method comprises the following steps: spraying or dripping an organic lithium solution on a surface of a negative electrode in an inert atmosphere, so that lithium ions in the organic lithium solution are reverted to metal lithium which is embedded into the negative electrode; and drying the negative electrode. Compared with the prior art, in the method, the organic lithium solution is sprayed or dipped on the surface of the negative electrode evenly so as to realize lithium supplementation in a wet process, thereby effectively avoiding metallic lithium powders floating in the air in a dry process to ensure safe production; and the whole process is simple, the cost is lower, the amount of the lithium supplementation can be controlled accurately through the amount and the time by spraying or dripping the organic lithium solution so as to supplement the lithium evenly, thereby preventing lithium precipitation and deformation of the negative electrode and improving the initial efficiency of the battery. Therefore, the the energy density of the battery is improved. Additionally, the invention further discloses another method for supplementing the lithium for the negative electrode of the lithium ion battery.
Owner:DONGGUAN AMPEREX TECH +1

Liquid crystal display apparatus

A liquid crystal display apparatus is disclosed. A plurality of pixel electrodes are arranged on a display region of a substrate in a matrix form having a plurality of column lines and a plurality of row lines. Each of a plurality of thin film transistors has a first current electrode connected to a corresponding one of the plurality of pixel electrodes. Each of a plurality of data lines is arranged between odd column line and even column line of a pair of the plurality of column lines and is connected to second current electrodes of thin film transistors which are coupled to odd column line and even column line of the pair. Each of a plurality of first gate lines is connected to gate electrodes of odd thin film transistors which are coupled to one of the plurality of row lines. Each of a plurality of second gate lines is connected to gate electrodes of even thin film transistors which is coupled to the one of the plurality of row lines. A data driving circuit is provided for driving the data lines. At least two gate driving circuits having a first gate driving circuit and a second gate driving circuit are provided, wherein the first gate driving circuit is connected to the plurality of first gate lines and the second gate driving circuit is connected to the plurality of second gate lines.
Owner:SHENZHEN CHINA STAR OPTOELECTRONICS TECH CO LTD

Method for supplementing lithium powder to lithium-ion battery negative plate

The invention belongs to the technical field of lithium-ion battery, and in particular relates to a method for supplementing lithium powder to a lithium-ion battery negative plate. The method comprises the following steps: a first step, putting the cold-pressed negative plate on an unwinding and rewinding mechanism, and putting lithium powder to a feeding mechanism above the negative plate; a second step, adding electric fields and opening the feeding mechanism, so that the lithium powder is adsorbed on the surface of the negative plate under the action of the electric fields; and a third step, rolling the negative plate adsorbed with the lithium powder. Compared with the prior art, the method can control the movement of the lithium powder to overcome the flotation of metal lithium powder in air through electrostatic effect provided by the electric fields, and can simultaneously control the addition of the lithium powder and the dispersion degree of the lithium powder on the negative plate, thereby uniformly, quantitatively and precisely dispersing the lithium powder on the surface of the negative plate. Besides, the whole process provided in the invention is only needed to be carried out in a drying environment without adding the lithium powder in a process of preparing slurry, has a simple manufacture process and low cost, and is suitable for large-scale production.
Owner:NINGDE AMPEREX TECH

Submerged plant planting device

The invention discloses a submerged plant planting device, comprising a buoyancy layer, connection ropes, a submerged plant planting layer, a fixed rope an and anchor, wherein the buoyancy layer is formed by a peripheral frame and 12-20 float bowls fixed on the peripheral frame; the submerged plant planting layer is formed by 10-30 planting bricks connected through connecting pegs; each planting brick is formed by a hollow frame and planting matrix filled into the hollow frame, and can adapt to a plurality of submerged plant propagule such as sprouts, clints, seeds and the like; the buoyancy layer is connected with the submerged plant planting layer through four connection ropes; a connecting peg is arranged at the center part of the submerged plant planting layer and connected with the fixed rope; the other end of the fixed rope is connected with the anchor and arranged at the water bottom; the submerged plant planting layer floats up and down along with water-level fluctuation, but the distance to the water level is kept constant all the time. The planting brick structure and the submerged plant root are good to fit, the device is stable in form for a long period of time, the effect on the submerged plant caused by drastic change of water level and stormy waves can be effectively avoided, and the overall device is simple to assemble, and free of labor management in the actual operation process.
Owner:HUBEI NORMAL UNIV

Vacuum expendable pattern casting (V-EPC) molding method of large complex castings

The invention discloses a vacuum expendable pattern casting (V-EPC) molding method of large complex castings. A flask for molding comprises three parts including flask bottom, a flask body and an up draught pneumatic hoist press bar; each part is provided with an independent vacuum air duct. The molding procedures comprise the following steps: filling sand and carrying out vibrating molding on the bottom of the expendable pattern, turning over the flask, removing a supporting plate and a tire plate rack and placing the up draught pneumatic hoist press bar, filling the sand, exerting pressure for vibrating molding, sealing the flask and carrying out pouring after vacuumizing. The parts with blind holes and grooves are filled with resin sand and core irons and a floating crane is employed to fix the core irons; local compaction is carried out on loose parts. Being adopted, the method of the invention ensures compact and uniform molding sand, solves the difficult problems frequently appearing in the process of V-EPC of large castings, including sand crushing, sand drop, sand inclusion and deformation, can ensure the accuracy of the blind holes, deep grooves and entire castings, can enable the pattern to be almost free from floating and deformation in the process of vibration and can produce high quality large complex castings.
Owner:BOTOU QINGFENG MACHINERY

Garbage classification and collection system for high-rise building

A garbage classification and collection system for a high-rise building comprises a vertical slideway, a control device, various kinds of garbage cans and at least one lifter. The vertical slideway serves as a garbage conveying passage for the high-rise building. The control device comprises a control panel of each floor and is used for controlling operation of the garbage classification and collection system. The various kinds of garbage cans are used for containing various kinds of garbage. Each lifter is disposed in the vertical slideway. The various kinds garbage cans are disposed on the lifters. The control device controls the lifters according to received instructions to drive the garbage cans to move up and down in the vertical slideway and rest at appointed floors. Compared with the existing garbage classification and collection system for high-rise buildings, the garbage classification and collection system adopts innovative thoughts, garbage can be classified and collected, and influence of garbage odor on residents of the high-rise building is reduced due to the fact that the garbage cans are disposed in the slideway. The garbage classification and collection system is simple in structure and easy in maintenance and late modification, and total automation can be achieved.
Owner:SHENZHEN SMART SECURITY & SURVEILLANCE SERVICE ROBOT CO LTD

Shield synchronous grouting construction method and construction material

ActiveCN104074530AImprove stabilityShort entry into initial setting timeUnderground chambersTunnel liningSlurryMaterials science
The invention discloses a shield synchronous grouting construction method and a construction material. The construction material comprises liquid A and liquid B, wherein the liquid A comprises 25.5 weight percent of cement, 2.6 weight percent of bentonite, 0.4 weight percent of stabilizing agents and 71.5 weight percent of water; the liquid B is water glass; and the volume ratio of the liquid A to the liquid B is 8:1-15:1. During synchronous grouting construction, the liquid A is prepared in a mixing station, and the liquid A and the liquid B are respectively conveyed into a liquid A slurry storage tank and a liquid B slurry storage tank which are arranged on a shield machine; the liquid A and the liquid B are respectively conveyed into a mixer positioned at the shield tail part of the shield machine through a liquid A slurry injection pipe and a liquid B slurry injection pipe; and the liquid A and/or the liquid B in the mixer are/is synchronously injected into a shield tail building gap through a shield tail slurry injection pipe. The shield synchronous grouting construction method solves various problems in subsequent grouting, synchronous single slurry injection, in-time grouting and secondary grouting in the prior art through utilizing good performance of the liquid A and the liquid B before and after the mixing of the liquid A and the liquid B and combining a primary synchronous grouting process.
Owner:CHINA RAILWAY 15TH CONSTR BUREAU GRP

Tunnel backing cloth slip casting material capable of preventing duct piece float upward and preparation method thereof

InactiveCN101269938AAchieve underwater non-dispersionPrevent floatingSolid waste managementPost injectionPolyacrylamide
The present invention relates to tunnel-wall post-injection pulp material and a preparation method of the tunnel-wall post-injection pulp material. Tunnel back-lining pulp-injection material that can prevent the upward-floating of the duct piece is characterized in consisting of a substrate compound A and an additive compound B, wherein, the substrate compound A includes cement, fly ash, sand and water; the additive compound B includes silicone ash, swell soil, droxyethylcellulose, polyacrylamide, sulfamate, naphthaline water-reducing agent and gluconic acid sodium salt; the ratio of the ingredients (kg/m<3>): 100 to 200 portions of cement, 300 to 600 portions of fly ash, 800 to 1600 portions of sand, 280 to 560 portions of water, 10 to 40 portions of silicone ash, 12 to 30 portions of swell soil, 0.4 to 0.8 portions of droxyethylcellulose, 0.2 to 0.4 portions of polyacrylamide, 0.2 to 0.4 portions of sulfamate, 1.6 to 2.9 portions of naphthaline water-reducing agent and 0.2 to 0.4 portions of gluconic acid sodium salt. The present invention can realize the high stability, high water dispersion prevention, high-efficient water-reducing plasticity preservation and adjustable performance of the pulp-injection material the condensation under the conditions of high water pressure and water satuation, thereby greatly improving the working performance and the durance of the pulp-injection material.
Owner:WUHAN UNIV OF TECH +1

Washer and operation control method therefor

A washer and a method of controlling operation of the washer is provided. The washer includes a main body; a washing chamber which is disposed in the main body and accommodates a stuff to be washed, including a water outlet formed on the bottom surface thereof and a water feed inlet on one end of which a shower nozzle is formed; an ultrasonic oscillator generating vibration in the washing chamber; and a control unit which can control a washing process, wherein the washing chamber includes an overflow hole through which washing water can overflow from the washing chamber. The washer performs an initial washing operation and a main washing operation in combination. In the initial washing operation, stuffs to be washed such as fruits and vegetables are contained in the washing chamber and then water is supplied on the stuffs to be washed through the shower nozzle in a showering manner to then be discharged so that foreign matter stick to the stuffs can be primarily removed. In the main washing operation, water is re-supplied into the washing chamber to fill the washing chamber up, to then perform the main washing operation called an ultrasonic washing operation through the ultrasonic oscillator. During performing the main washing operation, water is additionally fed in every period of time in a manner that a certain amount of floating matter can be flown out through the overflow hole. As a result, light foreign matter floating in the water among the foreign matter detached from the stuffs to be washed is flown out together with the water, to thereby prevent floating foreign matter from sticking again to the stuffs during washing and improve a washing effect. The washer can automatically and cleanly wash stuffs such as fruits and vegetables to be washed which requires a long washing time, to thereby provide an effect of shortening the whole washing time.
Owner:WINIAMANDO
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