77results about How to "Short life" patented technology

The invention discloses a single-stage multi-port converter DC side current ripple suppression method and device and a storage medium, and the method comprises the steps: obtaining an initial three-phase sinusoidal modulation wave according to the AC side three-phase voltage and current of a converter; obtaining a battery current control value according to the DC side photovoltaic voltage and current; obtaining an asymmetric carrier wave according to the DC side photovoltaic voltage and the energy storage battery voltage; according to the initial three-phase sinusoidal modulation wave and the asymmetric carrier wave, a battery current actual value is obtained, iteration is carried out according to an error between the actual value and a control value, and a zero-sequence component when the error is smaller than an error tolerance is obtained; injecting the zero-sequence component into the initial three-phase sinusoidal modulation wave to obtain an improved modulation wave; and intersecting the improved modulation wave with the asymmetric carrier wave to obtain a PWM driving signal of the converter. According to the invention, direct-current side current ripple suppression and power distribution between optical storage are realized through a zero-sequence component injection method, and the method has the characteristics of remarkable ripple suppression effect, low implementation cost and the like.

This utility model discloses a nanoimprinting machine, including an imprinting template mounting stage and a substrate mounting base. Multiple sets of suction cups (secondary) for adsorbing and fixing the substrate are mounted on the upper center of the substrate mounting base. The imprinting template mounting stage is positioned above the substrate mounting base. Above the positions where the suction cups (secondary) are positioned to fix the substrate, multiple sets of suction cups (tertiary) for adsorbing and fixing the imprinting template are provided, with the adsorption ends of the suction cups (tertiary) forming the adsorption end face of the imprinting template. Each set of suction cups (tertiary) is connected to a suction cup mounting plate. The suction cup mounting plate is also connected to multiple sets of laser sensors for detecting the tilt of the adsorption end face of the imprinting template relative to the substrate surface. A suction cup fixing component is located at the upper end of the suction cup mounting plate, and multiple voice coil motors are located at the upper end of the suction cup fixing component for adjusting the tilt of the adsorption end face of the imprinting template. This utility model solves the leveling problem during the imprinting process, avoids damage to the template, substrate, and imprinting head, improves the performance of the nanoimprinting machine, and achieves better nanoimprinting results.

The utility model provides a kind of high-temperature-resistant long-life ball bearing retainer, it is related to bearing retainer technical field, and it includes: hold frame body;The retainer body is annular structure, and ball hole is arranged in annular array shape on the inner wall of retainer body;Annular array shape is arranged in the through hole of the outer wall of retainer body, and the through hole is circular hole structure, and the through hole arranged in annular array shape is jointly composed of the heat dissipation structure of retainer body.Utilize nickel-based alloy high melting point (1300 DEG C above) and strong oxidation resistance, so that retainer is not easy to heat softening or oxidation corrosion failure under high temperature working condition (such as industrial kiln, aeroengine), directly prolongs the service life under high temperature environment;Through type circular through hole forms three-dimensional heat dissipation channel, cooperates the forced convection of lubricating medium (oil / gas), and internal heat is quickly taken away.For example in high-speed motor, airflow passes through through hole can make retainer temperature reduce 20%~30%, avoid local overheating to cause material failure.

The invention provides a photoconductive switch of a comb electrode, which comprises a semi-insulating gallium arsenide substrate layer, a low-temperature gallium arsenide layer and an insulating protective layer, and is characterized in that the low-temperature gallium arsenide layer is formed on the semi-insulating gallium arsenide substrate layer, and the insulating protective layer is arranged on the low-temperature gallium arsenide layer; a switch anode and a switch cathode are respectively formed on the inner side of the low-temperature gallium arsenide layer surface insulation protection layer; a comb-shaped electrode is arranged on the surface of the low-temperature gallium arsenide layer and located at the switch anode. According to the invention, by arranging the comb-shaped electrode structure, a plurality of comb-tooth electrodes which are distributed in a staggered manner are formed in the electrode region, so that the action area of incident light and a semiconductor active region is increased under an illumination condition, and generation and collection of photon-generated carriers are facilitated; meanwhile, the distribution state of an electric field near the electrode is improved, and the possibility of local electric field concentration is reduced; in addition, a low-temperature gallium arsenide material is adopted as the photoconductive layer, the service life of a current carrier is short, and the device is suitable for photoelectric trigger application scenes with requirements for response speed and stability.

This invention discloses a pneumatic hand rehabilitation system and method, comprising: in a model calibration phase, collecting multi-channel surface electromyography (EMG) signals generated by the forearm of the target patient when performing different hand gestures, and constructing coarse and fine classifier training sets; training multiple heterogeneous classification models using the coarse and fine classifier training sets respectively, and selecting the optimal coarse and fine classifiers; in a rehabilitation training phase, collecting multi-channel EMG signals generated by the forearm of the target patient in real time, calling the trained coarse and fine classifiers for two-stage hierarchical decoding, and outputting motion control commands; a pneumatic execution module parsing the motion control commands and driving the air bladder deformation of the pneumatic rehabilitation glove to drive the patient's hand to complete the corresponding rehabilitation movements. This invention can significantly improve individual adaptability, multi-finger recognition accuracy, and control stability under different physiological characteristics of patients and complex fine motor scenarios.

The application discloses a solar cell and a printing plate assembly. The solar cell comprises a plurality of sub-grid lines extending along a first direction, the plurality of sub-grid lines are arranged in a plurality of rows and a plurality of columns, a plurality of odd-numbered column sub-grid lines correspond to each other, a plurality of even-numbered column sub-grid lines correspond to each other, the even-numbered column sub-grid lines have an offset along the column direction relative to the odd-numbered column sub-grid lines, at least one main grid line extending along a second direction, the first direction intersects the second direction, the main grid line comprises a first lap portion and a second lap portion, the first lap portion and the second lap portion are alternately arranged along the second direction, so that the first lap portion laps the odd-numbered column sub-grid line, the second lap portion laps the even-numbered column sub-grid line, the first lap portion and the second lap portion are connected, adjacent the first lap portion and the second lap portion have a first interval along the first direction, so that the odd-numbered column sub-grid line and the even-numbered column sub-grid line have a second interval along the first direction.

The utility model discloses a contact part and relay, this contact part includes at least one switch module, this switch module includes at least two along the first direction arrangement's moving contact piece, and with each moving contact piece respectively corresponding at least two static contact piece, in switch module, each moving contact piece has the fixed end and the movable end along the second direction distribution, and the fixed end is opposite the static contact piece fixed of this moving contact piece, and the movable end is suitable for the direct action or swing in third direction opposite this moving contact piece's fixed end to with corresponding static contact piece close or disconnect, wherein, at least two in the first direction adjacent moving contact piece's movable end is opposite along the second direction, and the second direction is perpendicular with the first direction or each other has the angle of clamping, and the third direction is perpendicular with the first direction, the second direction all. Adopt above -mentioned technical scheme, can improve the problem that traditional relay contact part occupies big space.

The present application provides a positive electrode plate, a secondary battery, a battery module, a battery pack, and a power consuming device; the positive electrode plate comprises a positive electrode current collector and positive electrode film layers having a single-layer or multi-layer structure provided on at least one surface of the positive electrode current collector; when the positive electrode film layers have a single-layer structure, at least one of the positive electrode film layers comprises a first positive electrode active material and a second positive electrode active material selected from LiFePO4, carbon-coated LiFePO4, LiFebDcPO4 and carbon-coated LiFebDcPO4; and / or when the positive electrode film layers have a multi-layer structure, at least one layer of the at least one of the positive electrode film layers comprises the first and second positive electrode active materials; and the first positive electrode active material comprises an inner core containing Li1+xMn1-yAyP1-zRzO4, a first coating layer containing pyrophosphate and phosphate, and a second coating layer containing a carbon element. The secondary battery made of the positive electrode plate of the present application has high energy density, high rate performance, good kinetic performance, long low-temperature cycle life, and high low-temperature cycling capacity retention rate.

The utility model relates to the field of MPP pipes, and discloses an MPP pipe with a buffer mechanism, which comprises a three-way pipe body, a fixing plate is fixedly connected inside the three-way pipe body, the upper end of the fixing plate is detachably connected with a bottom plate, the bottom of the bottom plate is provided with a mounting unit, the upper surface of the bottom plate is fixedly connected with an elastic piece, and the elastic piece is fixedly connected with the buffer mechanism. A buffer plate is fixedly connected to the top end of the elastic piece, a buffer pad is fixedly connected to the upper surface of the buffer plate, a protection unit is arranged on the outer side of the buffer plate, a fixing ring is fixedly connected to the upper end of the interior of the three-way pipe body, and a threaded groove is formed in the surface of the inner wall of the fixing ring. According to the three-way pipe, through cooperation of the bottom plate, the installation unit, the elastic piece, the buffer plate, the buffer pad and the protection unit, water flow flowing downwards through the upper end of the three-way pipe body can be guided and buffered, and the water flow can be directly divided towards the left side and the right side.

The present application provides a kind of can inhibit life reduction's human-powered vehicle's assembly and gear.The human-powered vehicle's assembly includes: shell;And installation part, it is configured to be provided in shell, is installed in the support portion of human-powered vehicle by fastener, installation part includes: metal base;Metal connecting portion, it is configured to be provided in base and be connected with fastener;And intermediate portion, it is provided between connecting portion and base, base includes the first material with first standard electrode potential, connecting portion includes the second material with second standard electrode potential, intermediate portion is formed by third material or fourth material with electric insulating property, the third material has third standard electrode potential, and the difference between third standard electrode potential and first standard electrode potential and the difference between third standard electrode potential and second standard electrode potential is less than the difference between first standard electrode potential and second standard electrode potential respectively.

The present application relates to the technical field of molecular sieve, in particular to a kind of self-supporting MFI nanosheet molecular sieve and its preparation method and purposes, the preparation method of the self-supporting MFI nanosheet molecular sieve includes the following steps: 1) after mixing silicon source, aluminium source, alkali source, template agent and water, obtain gel mixture;2) the gel mixture obtained in step 1) is crystallized, i.e. the self-supporting MFI nanosheet molecular sieve is obtained;Wherein, the template agent is imidazolyl quaternary ammonium salt compound.The self-supporting MFI nanosheet molecular sieve prepared in the present application does not need expensive surfactant, no phosphorus species is left in channel after calcination, the range of silicon-aluminum ratio is wide, and it is simple and easy to repeat.

The application discloses an oil core separated atomizer, which comprises an oil storage device body, the oil storage device body and an atomizing core are detachably connected, the oil storage device body is internally provided with an oil storage cavity, the bottom of the oil storage device body is provided with an insertion channel communicated with the oil storage cavity, the atomizing core is inserted into the oil storage cavity through the insertion channel, the atomizing core is internally provided with a heating cavity, the heating cavity is provided with a heating core, the outer wall of the atomizing core is provided with an oil inlet hole corresponding to the heating core, and the oil inlet hole is sealed in the insertion channel; the atomizing core can move up and down along the insertion channel, the atomizing core can move the oil inlet hole from the insertion channel to the oil storage cavity to allow the oil inlet hole to take in oil, and the atomizing core can move the oil inlet hole to the insertion channel again to form a sealing structure and be isolated from the oil storage cavity. The atomizing core can move up and down in the insertion channel, the oil inlet hole on the atomizing core is communicated with or isolated from the oil storage cavity, and the application can prevent the tobacco tar in the oil storage cavity from entering the heating core through the oil inlet hole to corrode the heating core.

The invention discloses a fuel cell system and a water state control method thereof, and relates to the technical field of fuel cells, the system comprises a fuel cell stack, and a bipolar plate of the fuel cell stack is internally provided with a cooling liquid flow channel for introducing a cooling liquid with a set temperature; a magnetic heat conversion device is arranged on the outer side of the cooling liquid flow channel; the cooling liquid circulation subsystem is communicated with a cooling liquid flow channel in the fuel cell stack through a pipeline; and the water state control subsystem can monitor the temperature of the cooling liquid entering and exiting the fuel cell stack and the spatial distribution of different forms of water in the fuel cell stack, and respectively controls the working state of the cooling liquid circulation subsystem and the working state of the magnetic-thermal conversion device according to the temperature and water state distribution information. According to the fuel cell system and the water state control method thereof, the uniform distribution of water states between single sheets and in the sheets in the low-temperature rapid cold start and normal operation process can be realized, the occurrence of local water flooding or film drying faults is avoided, the output performance of the fuel cell system is improved, and the service life of the fuel cell system is prolonged.

The application relates to the technical field of movable floors, and discloses a double-layer ventilation and heat dissipation type anti-static movable floor, which comprises a base plate, a plurality of mounting holes are arranged on the base plate, support plates are fixedly connected to the two sides of the top of the base plate, a floor tile body is placed at the bottom of the support plate, a strip-shaped groove is arranged on the periphery of the floor tile body, a rubber strip is mounted in the strip-shaped groove, a plurality of anti-skid blocks are fixedly connected to the top of the floor tile body, the spacing between rock wool boards and the floor tile body is 4CM, heat generated by electronic equipment can be efficiently dissipated, and the performance of the equipment can be effectively prevented from being affected by high temperature or the service life of the equipment can be effectively prolonged; meanwhile, the mounting holes of the base plate enhance the stability of the whole in connection with the ground, the rubber strip on the periphery of the floor tile body improves the sealing property, the anti-skid blocks improve the use safety, the cooperation of the dovetail-shaped mounting grooves and the wedges makes the installation more convenient and the splicing more firm, so that the floor has the advantages of structural stability, efficient installation and the like while ensuring ventilation and heat dissipation.

This invention discloses a novel hybrid power system, belonging to the field of engine technology, applicable to horizontally opposed engines. By optimizing the shapes of the cylinder head, intake manifold, and piston, airflow is guided to form a concentrated and powerful tumble flow. During the compression stroke, this creates a squeezing impact tumble flow, breaking it up before ignition and combustion, thus improving combustion efficiency. The crankcase has a skeleton structure, simplifying the manufacturing process and eliminating the need for mold casting. All components can be machined. The lubricating oil passages within the crankcase are formed by splicing oil passages from various components; short sections of the oil passages are easy to machine, and blockages are easily disassembled and cleared. A rocker arm simultaneously drives two intake valves, with equal distances from both valves to the rocker arm, allowing for simultaneous entry and exit of both valves. This provides good coordination, reduces wear and noise, and ensures good sealing.

The utility model relates to the technical field of turnover kettles, and discloses a turnover kettle for ambergris production, which comprises a kettle body and a jacket, a kettle cover is movably mounted at the upper end of the kettle body, a temperature sensor is fixedly mounted in the kettle body, a feed opening is formed in the lower end of the kettle body, a feed opening is fixedly connected to the upper part of the kettle cover, and a discharge opening is formed in the lower part of the kettle cover. A transmission shaft is fixedly mounted above the kettle cover, a servo motor is fixedly mounted above the transmission shaft, a stirring shaft is fixedly mounted at the lower end of the transmission shaft, and a stirring rod is fixedly mounted on the outer side of the stirring shaft. According to the turnover kettle for ambergris production, through cooperative use of the metering pump and the metering device in the coil pipe, the metering pump is used for controlling the flow speed of heat conduction oil, and meanwhile, the metering device is used for detecting the flow speed of the heat conduction oil, so that the accuracy of temperature control is improved, and the problem that the temperature is not accurate due to inaccuracy of temperature control is solved; therefore, the reaction efficiency and the product quality are improved.

The utility model discloses a driving system for a high-pressure hose roller, which comprises a vertically arranged driving motor, a speed reducer connected to the driving motor, a pinion connected to a horizontal output shaft of the speed reducer and a large gear ring meshed with the pinion, teeth are arranged on the inner ring of the large gear ring, and the periphery of the large gear ring is fixedly connected with the roller. A high-pressure hose is wound on the roller, an eccentric disc is further arranged on the speed reducer, the inner circle of the eccentric disc is connected to the speed reducer through a plurality of mounting holes in the periphery, and the outer circle of the eccentric disc is connected to the roller base through a plurality of mounting holes in the periphery. The center of the inner circle rotates around the center of the outer circle, so that the center distance between the small gear and the large gear ring is adjusted to be within a designed range to achieve normal meshing. By arranging the eccentric disc, the center distance of the gear set can be adjusted, the assembly precision is improved, the meshing smoothness of the gear set is ensured, and the service life of equipment is prolonged.

This invention belongs to the field of recycled copper smelting technology, and specifically discloses a waste heat recovery and utilization device for recycled copper smelting. The device includes a shell, with an inlet pipe connected to one side and an outlet pipe connected to the other side for introducing high-temperature flue gas to complete heat exchange before discharging the flue gas; a heat exchange finned tube bundle is disposed inside the shell for heat exchange with the high-temperature flue gas. Through the action of a first guide plate, baffle, and diversion pipe, this invention can regulate the flue gas at the inlet, diverting and regulating it when flue gas fluctuations are large, achieving long-term high efficiency and energy saving. Simultaneously, during the instantaneous discharge of high-temperature dense smoke and dust in recycled copper smelting, the diversion pipe reduces the temperature and concentration of the flue gas entering the heat exchanger, preventing equipment damage and blockage, and avoiding excessively low flue gas temperature that could generate acidic condensate, corrode heat exchange elements, and shorten equipment lifespan.

The utility model belongs to the technical field of combustors, and discloses a heat storage combustion flat single radiant tube device which is provided with a heat storage type combustor and a flame radiation flat single tube, and flames combusted by the heat storage type combustor are jetted in the flame radiation flat single tube. Formed flue gas flows back into the heat accumulating type combustor along the pipe wall of the flame radiation flat single pipe and is exhausted after heat is absorbed by a heat accumulator; the heat storage combustion flat single radiant tube device integrates combustion, heat transfer, smoke exhaust and heat storage, and during working, air and smoke need to be reversed, and fuel does not need to be reversed; the utility model has the beneficial effects of small volume of installation space in the furnace, compact structure, uniform temperature of the radiant tube wall and the like.

A liquid heating device 200 comprising: a container 100 having an internal space 100i and an inlet 103 and an outlet 105; and a ceramic heater171,172 of which a base-end portion 17R is retained by the container, the ceramic heater including ceramic sheet 17s which has a heat generation portion 17a and is wrapped around an outer circumference of a ceramic base 17g such that, at a wrap-meeting part of the ceramic sheet, a slit 17v extending in the axial-line L direction is formed as a non-heat generation portion, wherein the liquid is heated by the ceramic heater, the outlet is located apart from the inlet in the axial-line direction, and a first-axis n1 direction in a vicinity 105R of an opening end 105e facing the internal space, of the outlet, crosses the axial-line direction, and a front end of the heat generation portion is located on the base-end portion side relative to the outlet.

The application discloses a power supply method of a surface cleaning device, including a cleaning module, a rechargeable battery pack and a power supply circuit. The surface cleaning device includes a cleaning mode and a self-cleaning mode. During the cleaning mode, the rechargeable battery pack drives the cleaning module to clean a surface to be cleaned. In the self-cleaning mode, the residual capacity Q of the rechargeable battery pack is obtained, and according to the relationship between the capacity of the rechargeable battery pack and a preset capacity, the cleaning module is driven to self-clean by the rechargeable battery pack and / or the power supply circuit. The technical problem solved by the application is to provide a power supply method of a surface cleaning device, the surface cleaning device selects different self-cleaning power supply modes and self-cleaning modes according to the capacity of the rechargeable battery pack to ensure the self-cleaning efficiency and avoid excessive charging and discharging of the rechargeable battery pack to damage the service life of the battery.

The present invention relates generally to a planar composite for the production of a container surrounding an interior, comprising a. a carrier layer; b. a barrier layer of plastic joined to the carrier layer; c. at least one layer of thermoplastic plastic KSa which is provided on the side of the barrier layer of plastic facing away from the carrier layer; wherein the carrier layer has at least one hole; wherein the at least one hole is covered by the barrier layer of plastic and the at least one layer of thermoplastic plastic KSa as composite layers, and a container with this composite, a process for the production of a container and a container obtainable by this process.

The novel zoom indoor spotlight comprises a shell, a light source assembly, a focusing assembly and a lens assembly, and the focusing assembly comprises a rear lens, a front lens and a focusing mechanism; the small end of the rear lens is close to the light source assembly, and the surface of the small end is provided with a light inlet hole. A shaft hole is formed in the middle of the large-end surface of the rear lens, and a plurality of first annular concave-convex surfaces in a concentric ring array are arranged on the large-end surface; a rotating shaft rotationally matched with the shaft hole is arranged in the middle of the back surface of the front lens, and a plurality of second annular concave-convex surfaces arrayed by concentric rings are arranged at the non-middle position of the back surface; a plurality of first convex parts which are distributed circumferentially are arranged on the first annular concave-convex surface, and the surface of each first convex part is an arc-shaped convex surface; a first concave part is arranged at the position, corresponding to the first convex part, of the second annular concave-convex surface, and the bottom surface of the first concave part is an arc-shaped concave surface. The utility model has the characteristics of stable and accurate focusing, sealed and durable structure, small volume, wide application range, long service life and the like.

The application relates to the technical field of photoelectric devices, in particular to an RC-Micro LED device and a preparation method thereof, which comprises, from bottom to top, a second substrate, a metal conductive support layer, a metal electrode layer, a first mirror layer, a transparent conductive layer, a gallium nitride epitaxial layer and a second mirror layer; the gallium nitride epitaxial layer is in a convex mesa structure, an insulating layer is covered on the sidewall of the convex mesa structure; the first mirror layer and the second mirror layer are oppositely arranged to form a Fabry-Perot resonant cavity structure. The RC-Micro LED device can meet the transmission requirement of high-speed short-distance optical interconnection.

This invention provides a method for calculating and determining the lifespan of impregnated diamond drill bits, belonging to the technical field of impregnated diamond drill bits in geological drilling. Based on engineering practice parameters, it establishes a calculation model relating the lifespan of impregnated diamond drill bits to drill bit parameters, encountered lithology, and drilling parameters. By optimizing and calculating these parameters, it can improve drill bit lifespan, increase mechanical drilling speed, and prevent a significant reduction in drill bit lifespan. The method can calculate and determine the following technical problems: It obtains parameters relating drill bit lifespan to footage per revolution and drill pressure per unit area, and establishes a calculation model relating drill bit lifespan to matrix abrasion per revolution, rock abrasiveness coefficient of the drill bit matrix, rock friction coefficient, footage per revolution, and drill pressure per unit area. It can calculate and determine the rock abrasiveness coefficient of the drill bit matrix; calculate and determine the matrix abrasion per revolution corresponding to different drill pressures per unit area; and calculate and determine the drill bit lifespan corresponding to different drill pressures per unit area.

The invention discloses a laser shock marking method for a gear transmission component. The laser shock marking method comprises the steps that the to-be-marked position of the gear transmission component is determined; forming a light-transmitting restraint layer capable of allowing high-amplitude plasma shock waves to propagate on the surface of the position to be marked; adjusting the distance between the position to be marked and the laser to a preset distance; performing laser impact marking on the to-be-marked position based on a laser; a pit is introduced into the surface of the position to be marked based on laser spot impact induced plastic deformation; and forming a mark based on continuous lap joint of the pits. According to the impact marking method, an absorption layer is not used in the marking process, the marking efficiency is improved, the marking width is increased, the mechanical property of the material is greatly improved, and the fatigue life of the material is greatly prolonged.

The application relates to the technical field of solar cells, and provides a solar cell, a preparation method of the solar cell, a battery assembly and a photovoltaic system. In the solar cell, a substrate of the battery is a p-type silicon wafer, a partial region on the front surface of the p-type silicon wafer is provided with an n-type diffusion layer, a first dielectric layer and an n-type doped layer are arranged in a laminated mode on the remaining region, a partial region on the back surface of the p-type silicon wafer is provided with a p-type diffusion layer, and a first dielectric layer and a p-type doped layer are arranged in a laminated mode on the remaining region. In this way, the anti-radiation characteristic of the p-type silicon wafer is utilized, the local passivation contact structure and the local n-type diffusion layer and p-type diffusion layer on the front surface and the back surface are combined, surface recombination and parasitic absorption are effectively reduced, the initial efficiency of the solar cell is ensured, and the solar cell can also maintain a high photoelectric conversion efficiency in an extreme irradiation environment.

a negative electrode for a lithium ion cell battery capable of increasing a cell battery capacity and improving cell battery characteristics such as cycle characteristics is provided. A negative electrode mixture layer 1M including a negative electrode active material, a binder, and hydrophobized cellulose is formed as described below. The negative electrode active material includes nano-Si, the binder is an organic solvent-based binder (polyimide or polyvinylidene fluoride), and the hydrophobized cellulose results from substitution of a part of hydrophilic groups of cellulose by a hydrophobic group. When the organic solvent-based binder is used as described above, reaction between water and Si can be prevented, and the electrode characteristics can be improved. In a general technique, the addition amount of the organic solvent-based binder needs to be increased because of use of the Nano-Si, and therefore, this decreases the cell battery capacity and the cycle characteristics (cell battery life). However, by addition of the hydrophobized CeNF, the cell battery capacity and the cycle characteristics (cell battery life) can be improved.

This invention relates to a controlled-foam flotation method for fine-grained zinc oxide ore, belonging to the field of mineral processing technology. Addressing the problems of deteriorating separation indices due to slime recycling, large and poorly fluid foam, stable and highly viscous foam layers, and poor flotation performance in the flotation process of fine-grained zinc oxide ore, this invention improves the flotation process and recovery indices by innovating the flotation process and developing novel flotation reagents. Specifically, it employs a fine scavenging operation to process middlings separately, avoiding their return to roughing and cleaning operations, thus preventing repeated recycling of slime in these operations and directly producing zinc concentrate. Furthermore, it uses a foam control agent to regulate the flotation foam of fine-grained zinc oxide ore, thereby increasing its ore-carrying capacity and improving the stability, viscosity, and fluidity of the foam layer. This facilitates the smooth flotation process of fine-grained zinc oxide ore, achieving higher flotation indices and promoting the efficient recovery of complex and difficult-to-process zinc ore resources.