61results about How to "Fully consumed" patented technology

The invention discloses a forming method of a lithium titanate battery. The forming method comprises the following steps: S1, lying the battery for first preset time t1 at first preset temperature T1, charging the battery with first preset current I1 constantly until reaching first cut-off voltage, and charging the battery with U1 constantly for second preset time t2; S2, lying the battery for third preset time t3 at the first preset temperature T1, discharging the battery with second preset current I2 constantly until reaching second cut-off voltage, and discharging the battery with U2 for fourth preset time t4; S3, aging the battery for sixth preset time t6 at second preset temperature T2, reducing the pressure and exhausting air; S4, carrying out the step S1 to the step 3 repeatedly for preset frequency, and sealing a liquid filling opening of the battery. According to the forming method of the lithium titanate battery, water in the battery is consumed completely and is generated into gas to be discharged from the battery, so that the capacity of the battery can be ensured, and the cycle performance of the lithium titanate battery can be improved.

A process for removing Mg from phosphorus ore in order to prepare phosphoric acid by wet method features use of static microbubble floatation column, and includes such steps as breaking the crude phosphorus ore, grinding, classifying, mineralizing by mixing the reverse floatation chemical with ore sludge, and floatating in said static microbubble floatation column while conditioning the ore sludge to obtain the bubble-phase tailings and low-Mg phosphorus ore concentrate from the column bottom.

The invention relates to a process for producing nano zinc oxide by using crude zinc oxide. The process comprises the procedures of leaching, purifying, precipitating and calcining; the leaching procedure comprises the steps of adopting the crude zinc oxide as a material, reacting with hydrochloric acid and producing a coarse zinc chloride solution; the purifying procedure comprises the steps of controlling the pH value properly of the coarse zinc chloride solution obtained in the leaching procedure, adding sodium hypochlorite to carry out primary oxidation for removing impurities, adding zinc powder to carry out secondary replacement for removing impurities and obtaining a refined zinc chlorine solution; and the precipitating procedure comprises the step of reacting the refined zinc chlorine solution obtained in the purifying procedure and a sodium hydroxide solution, producing zinc hydroxide slurry, and then filtering, washing and drying the slurry to obtain zinc hydroxide; calcining the zinc hydroxide obtained in the precipitating procedure to obtain active zinc oxide. The process had the advantages that comprehensive utilization and sustainable development of resources are realized and the economic, environmental and social benefits are good.

The invention relates to a semi-red mud water permeable brick which comprises 40-50 parts of red mud; 5-10 parts of a silicon-aluminum additive; 40-50 parts of an additional aggregate; 5-8 parts of flux and 5-8 parts of an auxiliary adhesive. The semi-red mud water permeable brick has large red mud consumption, can cooperatively treat solid wastes in industries such as ceramics, refractory materials, metallurgy and the like, and is low in cost, high in safety and attractive in appearance, and all technical requirements conform to industry standard requirements of water permeable bricks.

The invention relates to a method for treating oxygen-containing tail gas in an ethylene glycol production device. The problems that in the prior art, the oxygen-containing tail gas treating is high in cost, large in energy consumption and low in safety, and pollutes the environment are mainly solved. According to the method for treating the oxygen-containing tail gas in the ethylene glycol production device, by adopting the technical scheme that the oxygen-containing tail gas from the ethylene oxide-ethylene glycol device enters a shell and tube reactor through a gas-gas heat exchanger and generates a catalytic oxidation reaction on the tube side under the effect of a noble metal catalyst, thus oxygen in the tail gas sufficiently reacts with ethylene, and the oxygen in the tail gas is removed; and then the treated tail gas is cooled through a cooler and then enters an ethylene recovering unit, and after the ethylene is removed, the tail gas enters a liquid separating tank to be subjected to subsequent treatment, the problems are solved well, and the method can be used for treating the oxygen-containing tail gas in the ethylene glycol production device.

The invention relates to the field of fuel cells, in particular to a shutdown control method of a fuel cell system, the fuel cell system and a vehicle. The method comprises the following steps: closing an inlet/outlet at the air side of the fuel cell stack, and keeping the pressure at the hydrogen side of the fuel cell stack constant; switching on an output circuit of the fuel cell stack, and obtaining hydrogen accumulated flow input from the hydrogen side; and determining whether to close the fuel cell system according to the relationship between the hydrogen accumulated flow and a preset threshold value. According to the invention, the contradiction that the fuel cell system is insufficient in shutdown oxidation gas consumption and short in standing time and is high in tail discharge hydrogen concentration of next startup in the shutdown oxidation gas consumption process is solved; and it can be guaranteed that shutdown control meets the safety of oxygen consumption and hydrogen emission in the whole life cycle and under the abnormal condition.

The invention discloses a natural high-quality paste for blacking hair and growing hair. The natural high-quality paste is prepared by the following steps: firstly, thoroughly airing partial selected main materials and auxiliary materials by virtue of a frying machine or manpower; on the basis of 10, weighing the following main materials: black mulberry, black wolfberry, black rose, carbon black oil, ilex latifolia thumb, cacumen biotae and rice straw ashes at the ratio of (6-7) to (5-6) to (3-4) to (4-3) to (3-2) to (2-3) to (2-3), crushing, refining and slightly sieving to form main material powder; and weighing the following auxiliary materials: pine needle leaves, mint leaves and vanilla at the ratio of (0.8-0.7) to (0.6-0.7) to (0.5-0.6), crushing, refining and slightly sieving to form auxiliary material powder; on the basis of 100, weighing the main material powder, the auxiliary material powder, rice vinegar and camellia oil at the ratio of (8-9) to (2-3) to (3-2) to (2-3), and stirring evenly to form mixed paste; heating, stewing, and sterilizing the obtained mixed paste for 1-2 hours; and packing and sealing to obtain the natural high-quality paste for blacking hair and growing hair, which is high in quality, high in grade, natural, black and bright, and is capable of finishing hair dyeing, hot oil treatment, hair care, hair growth and the like for men and women once.

The invention discloses a method for preparing calcium chloride through carbide slag and hydrochloric acid, and belongs to the technical field of chlor-alkali production. The method comprises the following steps of: reacting hydrochloric acid with carbide slag; filtering to obtain refined calcium chloride brine and calcium chloride brine sludge; washing the calcium chloride brine sludge with water; filtering; preparing hydrochloric acid by the obtained calcium chloride freshwater salt absorbing hydrogen chloride; and preparing calcium chloride through calcium-chloride-containing hydrochloric acid instead of part of hydrochloric acid. According to the method for preparing calcium chloride through the carbide slag and hydrochloric acid, the calcium chloride brine sludge is washed with water in order to recover the calcium chloride; the recovery rate of the calcium chloride under such method can reach 96% compared with the traditional process with the recovery rate of the calcium chloride of 70%; the production cost can be effectively decreased; the calcium chloride content in the brine sludge is greatly decreased through the washing, so that the influence of the loss of calcium chloride to the surrounding environment is reduced. The byproduct naming hydrogen chloride is fully consumed during recovering the calcium chloride, so that the production capacity of a chlor-alkali production is also improved.

The invention discloses a temperature-resistant salt-resistant low-tension foam oil-displacing agent. The foam oil-displacing agent mainly comprises fatty alcohol polyoxyethylene ether carboxylate, and also comprises fatty alcohol-polyoxyethylene ether. The product has excellent oil-water interface property and outstanding foam performance, and is especially suitable for a foam flooding technology in the field of tertiary oil recovery. The invention also discloses a preparation method of the foam oil-displacing agent, the whole synthesis process of the method is continuously completed in a reaction kettle, any additional separation and purification process is not needed, a terminal product is directly formed, and the method has the advantages of simple process, economy, environmental friendliness and the like. The invention also discloses application of the foam oil-displacing agent.

The invention relates to a method for avoiding blackening of a negative electrode pin-flexible connection of a lithium ion battery. The method comprises the following step of pre-charging the lithiumion battery subjected to liquid injection for 30-60 seconds under the condition of 0.5-1 C. Through the pre-charging step, trace water in the electrolyte of the lithium ion battery after liquid injection can be rapidly consumed, the trace water is prevented from reacting with the fluorine-containing lithium salt in the electrolyte to generate sufficient HF, therefore, oxidation of HF to the negative electrode pin-flexible connection in subsequent high-temperature standing and charging and discharging processes is avoided, the effect of avoiding corrosion and blackening of the negative electrode pin-flexible connection of the lithium ion battery is achieved, the DCIR of the lithium ion battery after circulation is reduced, the first effect of the lithium ion battery is improved, and the cycle life of the lithium ion battery is prolonged.

The invention provides a preparation method of spherical silicon dioxide nano-particles. The preparation method comprises the following steps of vertically dispersing nitrogen into a flowing sodium silicate solution through a microporous membrane to obtain a precursor solution; and vertically dispersing a sulfuric acid solution into the flowing precursor solution through the microporous membrane,and performing precipitation reaction and ageing to obtain the spherical silicon dioxide nano-particles, wherein the initial flow rate of the sulfuric acid solution passing through the microporous membrane is 5-30 mL/min, the flow rate of the sulfuric acid solution passing through the microporous membrane is increased by one time per 1-2 min, each increase amplitude is 0.1-10 mL/min, and the finalflow rate is 12-40 mL/min. According to records of the embodiment of the invention, the particle size of the silicon dioxide nano-particles prepared by the preparation method provided by the invention is 20-80 nm, and the degree of sphericity is good.

The invention discloses a nitrogen and phosphorus removal device and method for simultaneously treating domestic sewage and nitrate wastewater by fully utilizing an internal carbon source, and belongs to the field of wastewater treatment. Sewage enters an AOA-SBR, anaerobic stirring is carried out, glycogen accumulating bacteria (GAOs) take in organic matter and store the organic matter as an internal carbon source (PHAs), and phosphorus accumulating bacteria (PAOs) store the PHAs and release phosphorus at the same time; the sewage enters a low-oxygen aeration stage (180 minutes), synchronous nitrification and denitrification is carried out, meanwhile, phosphorus uptake by PAOs is carried out, and denitrifying phosphorus removal is carried out by using nitrification products by denitrifying phosphorus-accumulating bacteria (DPAOs); nitrate wastewater with the same volume as discharged sludge is pumpedafter aeration, then an anoxic stage is enabled, denitrifying glycogen-accumulating bacteria (DGAOs) perform denitrification by using the internal carbon source, and perform endogenous denitrification by using the PHAs and NO3 <-> as an electron donor and an electron acceptor respectively, so as to achieve the purpose of deep nitrogen and phosphorus removal. The device is simple and easy to start, simple and convenient to operate, low in energy consumption, capable of treating domestic sewage and nitrate wastewater at the same time, good in nitrogen and phosphorus removal effect and low in sludge yield.

The invention relates to the technical field of casting, in particular to a copper and copper alloy efficient melting method. Smelting equipment used in the casting method comprises a shell, an auxiliary structure, a feeding structure, a flue gas discharging structure, a gas inlet structure, a smelting furnace body, a partition structure and a heat preservation layer, wherein the shell for providing protection and heat preservation is internally connected with the smelting furnace body used for melting copper and copper alloy. Flue gas generated by combusting coal fuel in a combustion chamberis fully and quickly discharged through the flue gas discharging structure, so that the coal fuel is fully and quickly combusted, the partition structure fully and quickly absorbs heat, the melting efficiency of the copper in a smelting chamber is improved; and meanwhile, the flue gas discharging structure is matched with the gas inlet structure, the oxygen entering amount in the combustion chamber is reduced in the flue gas discharging process, oxygen is fully contacted with the coal fuel, the coal fuel is fully combusted while the oxygen is rapidly consumed, so that the coal utilization rateis increased, the amount of oxygen discharged along with the flue gas is reduced, and the flue gas is fully and quickly discharged while the oxygen waste is avoided.

The invention relates to a circulating spraying type waste gas absorption tower which comprises a tower body, a baffle, a main spraying device and a secondary spraying device. An absorption cavity is formed in the tower body, and a gas inlet, a gas outlet and a liquid outlet which are communicated with the absorption cavity are formed in the tower body; the baffle is arranged in the absorption cavity and forms a gap for waste gas circulation with the inner wall of the absorption cavity; the main spraying device comprises a main spraying head arranged at the top of the absorption cavity and a liquid inlet pipe communicated with the main spraying head, and treatment liquid in the liquid inlet pipe can be sprayed into the absorption cavity from the main spraying head; the secondary spraying device comprises a liquid pumping pipe, a liquid pump and a secondary spray head, the liquid inlet end of the liquid pumping pipe is arranged on the baffle, the liquid outlet end of the liquid pumping pipe is communicated with the secondary spray head, and the liquid pump is arranged on the liquid pumping pipe. Compared with the prior art, the circulating spraying type waste gas absorption tower has the advantages that the treatment liquid falling on the baffle plate is sprayed out again through the secondary spraying device, is in contact with waste gas and absorbs harmful substances in the waste gas, so that the utilization rate of the treatment liquid is increased, and the waste gas absorption effect is improved.

The invention provides a partition rod with damping. The partition rod comprises a conducting wire clamp for clamping a conducting wire, a frame body and filling particles, wherein the conducting wireclamp is fixedly connected with the frame body, the frame body is provided with a hollow particle damping filling cavity, and the filling particles are located in the particle damping filling cavityand do not fill the particle damping filling cavity. According to the invention, by introducing a particle damping technology, the damping of a conducting wire-shock absorber system is increased, thevibration mechanical energy of a conducting wire is fully consumed, and the conducting wire and auxiliary fittings are protected.

The invention provides a penicillin fermentation liquid continuous culture method, which comprises the following steps of (a) setting a primary, secondary, tertiary and fourth fermentation tanks; (b)bringing and putting excessive fermentation liquid being 20 thousand to 50 thousand mu/mL in a normal fermentation tank into the primary fermentation tank to be cultured in a sterile way; (c) bringingand putting excessive fermentation liquid being 50 thousand to 80 thousand mu/mL in the normal fermentation tank and fermentation liquid being 50 thousand to 80 thousand mu/mL in the primary fermentation tank into the secondary fermentation tank to be cultured in a sterile way; (d) bringing and putting excessive fermentation liquid being 80 thousand to 110 thousand mu/mL in the normal fermentation tank and fermentation liquid being 80 thousand to 110 thousand mu/mL in the secondary fermentation tank into the tertiary fermentation tank to be cultured in a sterile way; (e) bringing and puttingexcessive fermentation liquid being greater than 110 thousand mu/mL in the normal fermentation tank and fermentation liquid being greater than 110 thousand mu/mL in the tertiary fermentation tank intothe fourth fermentation tank to be cultured in a sterile way; (f) performing filtering after the culture on the fermentation liquid in the fourth fermentation tank. The fermentation unit of the penicillin bringing and putting fermentation liquid is greatly improved; the COD concentration in the fermentation waste water is obviously reduced; the environmental-friendly cost is reduced.

The invention discloses an assembling method of a button-type lithium ion battery. The assembling method comprises the following steps of horizontally placing a button battery positive electrode battery shell on a copper plate of a resistance welding machine, placing a positive plate right in the center of the positive electrode battery shell, then adjusting the voltage of the resistance welding machine, welding a sharp part of a carbon rod onto the positive battery shell on the edge of the positive plate, enabling the positive plate to be firmly contacted with the positive electrode battery shell, and enabling the position of the positive plate not to be easily changed. An assembled battery has high qualification rate, the consistency of the battery performance can be obviously improved, the original basic electrochemical performance of the positive electrode material can be reflected, and the positive electrode material can be adequately utilized. By adopting the assembling method, the mass production can be integrally improved, the qualification rate of the button battery can be increased, the consumption of materials can be reduced, the battery performance can be improved, the production cost of enterprises can be effectively reduced, the product quality can be improved, and the corporate benefit can be increased.