31results about How to "Float fast" patented technology

The invention relates to a heat treatment deformation control method for a large-diameter and large-modulus elliptical molded surface container semispherical shell and belongs to the technical field of container manufacturing. By means of the heat treatment deformation method, due to the fact that an integrated quenching and aging heat treatment tool is designed, the elliptical molded surface container semispherical shell and the heat treatment tool can be tightly matched, the quenching transfer time is shortened, the phenomenon that the top of the shell collapses and pits happen in the circumferential direction of the shell during quenching is avoided, quenching and time aging deformation is reduced, and therefore the heat treatment performance of the elliptical molded surface container semispherical shell can be ensured; and meanwhile, the subsequent machining precision of the shell is also ensured. In addition, a UCON water solution with the concentration ranging from 6% to 10% is adopted in the method to serve as a quenching medium, dynamic flowing of the water solution is maintained, the cooling speed and uniformity of the shell are ensured, meanwhile, quenching deformation is also controlled, and therefore the product precision is ensured.

The invention provides a galena collecting agent. The galena collecting agent is prepared from the following raw materials in parts by weight: 30 to 50 parts of sodium xanthate salt, 20 to 40 parts of diphenyl amino phosphorodithioic acid, 5 to 15 parts of sodium dibutyl dithiocarbamate, and 10 to 30 parts of sodium carbonate. The collecting agent has the advantages of being high in selectivity, high in collecting capacity, high in mineral floating speed, and low in dosage; the collecting agent applied to lead zinc ore separation is able to raise the concentrate grade and recovery of lead, decrease the loss of lead in lead concentrate, and raise the comprehensive utilization rate of a lead zinc ore resource; the collecting agent is applicable to flotation of lead-zinc sulfide ores, including lean ores and refractory ores.

The invention discloses a beneficiation method for copper-lead sulphide ore, and belongs to the technical field of beneficiation. The method comprises raw ore grinding, copper-lead mixing flotation and copper-lead separation. Copper-lead mixing flotation comprises primary copper-lead roughing, tertiary copper-lead fine selecting and secondary copper-lead scavenging. Copper-lead separation comprises primary copper roughing, tertiary copper fine selecting and secondary copper scavenging. Lime, calcium hypochlorite, zinc sulfate, sodium sulfite, sodium sulphide, dimethyl dicarbonate, sodium pyrophosphate, sodium citrate, ethionine ester, ethyl thio carbamate, sodium n-butylxanthate, aniline aerofloat, diphenyl amino phosphorodithioic acid and sodium carbonate are added in the copper-lead roughing and copper-lead scavenging processes. Lime, water glass, sodium phosphate starch, carboxymethyl starch, phthalic acid, thiosalicylic acid, ethionine ester and sodium ethylxanthate are added in the copper roughing and copper scavenging processes. The beneficiation method solves the problem that in the process of beneficiation of the copper-lead sulphide ore through a traditional flotation method, the copper and lead recycling rate is low.

The invention relates to a multi-purpose life-saving bin which comprises heat-preserving waterproof elastic sealed one-piece clothes with floating and buffering functions. The one-piece clothes comprise a safety helmet, a coat, a cape and a pair of trousers; the totally-sealed cover type safety helmet comprises a foldable buffering airbag, an intelligent automatic control system and a high-pressure air inflating bottle; the one-piece clothes is made of elastic polymer waterproof cloth which is tailored and sewn according to the shape of the human body and wrapped by a modular foam block in the shape of the human body; the buffering airbag is made by tailing and sewing non-elastic polymer flame-retardant cloth; after the buffering airbag is sealed and inflated with air, the outer side of the buffering airbag is in the shape of a cylinder, and the inner upper side of the buffering airbag is convex, thus the buffering airbag is in the shape of the human body; the inner wall and the outer wall of the inner upper side of the buffering airbag are connected by a high-strength non-elastic cloth strip; the periphery of the upper part of the buffering airbag is provided with circle-shaped parachutes; the upper part of the buffering airbag is provided with a circle of impacting pressure-relief valves, wherein the openings of the impacting pressure-relief valves face to the ringlike parachutes; a foldable square convex arc-shaped puncture-preventing high-strength ultrathin steel plate is fixed outside the bottom of buffering airbag; and four multi-vale carbon-dioxide high-pressure air cylinders are fixed at the periphery of the inner side of the bottom of the buffering airbag.

The invention relates to a linear low-density polyethylene/carbon nanotube open-cell foam material and a method for preparing the same. The invention belongs to the field of high-molecular materials and in particular relates to the field of linear low-density polyethylene foam open-cell materials. The purpose of the invention is to overcome the defect of the prior art and thus provides a linear low-density polyethylene open-cell foam material which is low in cost, simple in operation, is even in foam cells, has a porosity above 50 percent and has an average aperture of 0.1 to 50mu m, and a method for preparing the same.

The invention discloses a beneficiation method for improving comprehensive recovery indexes of complex low-grade molybdenum polymetallic ores, and particularly relates to comprehensive recovery of valuable elements such as molybdenum, copper and sulfur in low-grade molybdenum ores. According to the method, the effective flotation separation of molybdenite, chalcopyrite and pyrite can be realized,and the comprehensive recovery indexes of the low-grade molybdenum ores are improved. The method comprises the following steps of primary ore grinding, molybdenum (molybdenite) flotation, secondary ore grinding (rough molybdenum copper concentrate regrinding), copper (chalcopyrite) flotation, and sulfur (pyrite) flotation. The method is stable and effective in reagent regime and beneficiation process flow and high in adaptability. By using the beneficiation method, high-quality molybdenite, chalcopyrite and pyrite are obtained from the complex, difficult-to-select and low-grade molybdenum polymetallic ore with associated copper/ sulfur, and the comprehensive recovery indexes of sulfide minerals are excellent. The adopted reagent is non-toxic and harmless, has little influence on the environment, and is an excellent beneficiation method.

The invention provides a collecting agent for increasing the beneficiation indicator of associated gold and silver. The collecting agent consists of 15-20 parts by weight of alkyl propiontrile xanthate ester, 25-35 parts of dianilinodithiophosphoric acid, 30-45 parts of 25# dithiophosphate and 5-15 parts of dithiophosphate acid. The collecting agent has collecting and foaming properties and is high in selectivity and collecting capability, effective enrichment of nonferrous metal associated gold and silver can be realized in the pH value of 7-10, and the beneficiation recovery rate of the nonferrous metal associated gold and silver can be increased by 2-5 percent; meanwhile, the collecting agent has a better floatation effect on carrier minerals of the associated gold and silver, and is an efficient collecting agent with a wider application range for increasing the nonferrous metal associated gold and silver.

The invention relates to the technical field of underwater robots, in particular to an emergency suspension device. An emergency suspension device for a seabed sonar robot comprises a connecting base, a slow lifting mechanism and a quick lifting mechanism, whereinthe top of the connecting base is provided with a supporting cylinder, a connecting ring and a top cover, a corrugated pipe is connected between the connecting ring and the top cover, and an air bag sleeve is arranged between the connecting ring and the top cover; the slow lifting mechanism comprises a first self-locking motor and a mounting seat, and a first lead screw is connected with a threaded cylinder at the center of the mounting seat; and the quick lifting mechanism comprises a second self-locking motor and a second lead screw, and the second lead screw is connected with the threaded cylinder at the top of the supporting cylinder. The lead screw is arranged between the top cover and the connecting ring for transmission, the corrugated pipe between the top cover and the connecting ring can be freely adjusted according to needs to form the size, and the robot can slowly move upwards conveniently; besides, a gas generator is arranged in the high-pressure area, an electromagnetic valve is arranged on the partition plate, the expansion degree of the air bag sleeve can be freely adjusted according to needs, and therefore the floating speed of the robot is controlled.

The invention relates to the technical field of medicines, in particular to a tofacitinib gastric retention floating type sustained release tablet and a preparation method thereof. The tofacitinib gastric retention floating type sustained release preparation provided by the invention takes carbomer as gel and is matched with proper expanding agent, floating agent, controlled release material and other auxiliary materials. All the components are properly selected and reasonably matched, so that the prepared controlled release tablet can quickly float in a stomach environment, the effective components are released and absorbed in a relatively low-pH environment, and the bioavailability is improved. Experiments show that the preparation rapidly floats after being put into a dissolution cup and continuously floats in a dissolution medium for at least 10 hours. In a medium with the pH value of 6.8, the medicine is stably and completely released within 10 hours; in simulated gastric juice, the release rate of the medicine in 6h is greater than 85%.

The invention discloses an intelligent drainage type cleaning pool. The intelligent drainage type cleaning pool comprises a frame body, wherein a cleaning pool body is arranged in the frame body; a plurality of spray heads are arranged above the cleaning pool body; a plurality of cleaning brushes are arranged in the cleaning pool body; a space for removing peach hair is formed between every two adjacent cleaning brushes, and the cleaning brushes are further connected with a driving device used for driving the cleaning brushes to shake; a turbidity sensor is arranged on the side wall of the upper portion of the cleaning pool body; an upper water outlet and an upper water inlet are further formed in the upper portion of the cleaning pool body, and are provided with a first one-way valve anda second one-way valve respectively; the turbidity sensor is connected with a controller, and the controller controls opening and closing of the first one-way valve and the second one-way valve; a water pipe is connected between the upper water outlet and the upper water inlet; and a purifying device is arranged in the water pipe. The design of the shaking type cleaning brushes is adopted, so thatthe cleaning brushes continuously shake back and forth in the direction perpendicular to the cleaning brushes, and peach hair on the surface of each peach is removed.

The invention relates to a silicon-barium-strontium-iron alloy deoxidizer. The silicon-barium-strontium-iron alloy deoxidizer comprises the following components in percentage by weight: 23 to 31 percent of silicon, 8 to 14 percent of barium, 11 to 18 percent of strontium and the balance of iron and is characterized by comprising 2 to 9 weight percent of cobalt oxide or titanium oxide, wherein the granularity of a silicon-barium-strontium-iron alloy and the cobalt oxide or the titanium oxide is between molecular level and 100nm. In the deoxidizer provided by the invention, the silicon-barium-strontium-iron alloy is mixed with the cobalt oxide or the titanium oxide, and the mixture is used as a molten steel deoxidizer. Compared with a single alloy deoxidizer, the silicon-barium-strontium-iron alloy deoxidizer has an obvious deoxidizing effect; particularly, an Al2O3 inclusion in a type of steel with low requirements on the content of aluminum and sulfur can be changed and reduced. The deoxidizer can make all alloy elements exert a coordinating function in the deoxidizing process, so that the inclusion can be formed quickly and float on the surface of molten metal; and the deoxidizer has extremely ideal effects of deoxidization, desulfurization and dephosphorization.

The invention provides a porphyra conchospore seeding collection and net-attachment system and a seeding collection method thereof. The porphyra conchospore seeding collection and net-attachment system comprises a collection device, the collection device comprises a collection ship and an automatic conveying device, the collection ship is provided with at least one collection barrel and a cabin, the collection barrels are installed in the cabin, and shells are placed in the collection barrels; the automatic conveying device is communicated with the collection barrels and the outside, the automatic conveying device comprises a water inlet pump and a water outlet pump, the water inlet pump conveys sea water to the collection barrels to stimulate shell conchospores disperse, and the water outlet pump discharges water of the conchospores in the collection barrels to a net curtain. Therefore, porphyra haitanensis all-floating culture and offshore intensive seeding collection are achieved through an automatic seeding collection and net-attachment technology, and technical support is provided for popularization of a novel ecological and efficient porphyra haitanensis culture mode.