24results about How to "Improve ball milling efficiency" patented technology

The invention discloses a pressure-free baking-free brick for synergistically recovering solid waste molten water-quenched slag and sludge incineration ash and a preparation method. The water-quenched slag and the sludge incineration ash are used as building materials to prepare the high-strength baking-free brick. By utilizing a chemical component complementation mechanism between two solid wastes, through scientific formula design and combining process route optimization, efficient fixation of heavy metals and improvement of mechanical properties of the brick body are realized, and the brick is high in strength and good in durability. According to the invention, the use of traditional brick making raw materials is reduced, and the adopted pouring molding technology is low in energy consumption and less in carbon emission; according to the method, the two solid wastes of the water-quenched slag and the sludge incineration ash are effectively consumed and converted into the sintering-free brick value-added building material, the secondary utilization value of the solid wastes is further developed, efficient toxicity reduction of the water-quenched slag is achieved, environmental benefits and social and economic benefits are both achieved, and the method is worthy of popularization and application. And a new sustainable development direction is provided for resource utilization of solid wastes and green transformation of the building industry.

The invention belongs to the technical field of sodium-ion battery positive electrode materials, and particularly discloses a sodium-ion battery layered metal oxide positive electrode material with high rate and long cycle performance and a preparation method of the sodium-ion battery layered metal oxide positive electrode material. The irreversible dissolution of transition metal is inhibited; and the diffusion barrier of sodium ions in the sodium layer is reduced. The positive electrode material is in a flaky stacked irregular block shape and has a layered structure. According to the sodium electric layered metal oxide positive electrode material with high magnification and long cycle performance, the positive electrode material has better stability, the electrochemical performance is improved, meanwhile, the material cost is greatly reduced, and the preparation method is simple, low in cost and environmentally friendly.

The invention discloses raw material powder for preparing high-thermal-conductivity silicon nitride ceramic as well as a preparation method and application of the raw material powder. The raw material powder comprises silicon nitride powder; a sintering aid; and zirconium oxide chips falling off from the zirconium oxide grinding ball when the zirconium oxide grinding ball and the silicon nitride grinding ball are used for grinding. The trace doping of zirconium oxide promotes the densification of the silicon nitride ceramic and improves the relative density and the overall density on one hand, and on the other hand, zirconium oxide is mainly distributed in a triangular grain boundary position in a dispersed phase manner and is not dissolved in a silicon nitride grain lattice, so that the thickness of an intergranular phase is not increased, and the thickness of the silicon nitride is increased. The thermal conductivity of the finally obtained silicon nitride ceramic material is more than 100W / (m.K).

The invention provides cement raw material grinding equipment, which belongs to the technical field of grinding, and comprises a support plate, a first ball-milling cylinder, a second ball-milling cylinder, a third ball-milling cylinder, steel balls, a screening mechanism and a rotating mechanism, the supporting plate is rotationally arranged at one end of the containing cylinder, the first ball milling cylinder, the second ball milling cylinder and the third ball milling cylinder are distributed in the containing cylinder in a triangular shape and rotationally connected with the supporting plate, and through holes are formed in the first ball milling cylinder, the second ball milling cylinder and the third ball milling cylinder. The plurality of steel balls are divided into three specifications of minimum, medium and maximum according to the diameters and are sequentially arranged in the first ball-milling barrel, the second ball-milling barrel and the third ball-milling barrel; the screening mechanism is used for screening the raw materials and correspondingly inputting the raw materials with small, medium and large diameters into the first ball-milling cylinder, the second ball-milling cylinder and the third ball-milling cylinder; and the rotating mechanism is used for driving the first ball-milling cylinder, the second ball-milling cylinder and the third ball-milling cylinder to revolve around the center of the supporting plate and rotate around the axes of the ball-milling cylinders. The cement raw material ball-milling device can improve the ball-milling efficiency and effect of cement raw materials.

The invention belongs to the technical field of silicon carbide micro powder production, and particularly relates to a ball milling system for producing silicon carbide micro powder, which comprises a bottom plate, a bearing plate is arranged right above the bottom plate, a cylinder is arranged at the top of the bearing plate through a driving assembly, and a plurality of steel balls are arranged in an inner cavity of the cylinder. The lifting assembly is used for lifting the steel balls and is arranged on the cylinder body; the lifting assembly comprises box bodies, the multiple box bodies are fixedly installed on the outer surface of the barrel in a circular arrangement mode, the air cylinders are fixedly installed in the box bodies, and the air cylinders are fixedly provided with long strip plates through piston rods. According to the invention, the lifting assembly for lifting the steel balls is arranged, so that the falling height of the steel balls can be increased when the barrel rotates, and the impact force of the steel balls on raw materials can be improved by increasing the falling height of the steel balls, so that the ball milling efficiency of silicon carbide micro powder can be improved to a certain extent.

The application belongs to the technical field of food preparation, and relates to a preparation method of PE emulsion prepared from citrus peel residues and high-dietary-fiber fat-reducing mayonnaise. The preparation method of the PE emulsion is as follows: (1) the dried and crushed citrus peel residues are soaked and pretreated with acidic oxidized electrolytic water, and after the soaking is completed, the activated materials are obtained by washing, drying and sieving; (2) the activated materials are mixed with water and then subjected to water bath heating treatment, and the citrus peel residue fiber concentrate is obtained by drying the residue; (3) the citrus peel residue fiber concentrate is dispersed and then subjected to colloid mill pretreatment and wet ball milling, and the citrus peel residue-based colloid suspension is obtained after the wet ball milling; and (4) the citrus peel residue-based colloid suspension is mixed with vegetable oil and then subjected to shearing homogenization to obtain a coarse emulsion, and then the coarse emulsion is subjected to ultrasonic treatment, and finally the citrus peel residue-based PE emulsion is obtained. The problems of unstable structure, easy oxidation, poor storage stability and poor taste of the fat-reducing mayonnaise prepared by using the PE emulsion are solved.

The invention discloses grading and ore grinding integrated equipment for enhancing the ball milling efficiency of ores difficult to grind, and relates to the technical field of lead-zinc ore beneficiation. The grading and ore grinding integrated equipment comprises a base, an end cover assembly is rotationally arranged on the base, a transmission gear is fixed to one end of the outer wall of the end cover assembly, and the transmission gear is driven by an external motor; the ball milling assembly is fixed on the end cover assembly; the feeding opening is fixed to the end, away from the transmission gear, of the end cover assembly, and a spiral feeder is arranged in the feeding opening; the discharging opening is fixed to the end, opposite to the feeding opening, of the end cover assembly; and the steel ball inlet is mounted on the outer wall of the ball milling assembly in a sealing manner. The ore can be graded and crushed for multiple times through the ball milling assembly, and the ore grinding efficiency is greatly improved.

The present invention provides a modified fly ash, wherein the raw materials for its preparation include, by weight, 95-105 parts of fly ash, 5-25 parts of carbide slag, 0.2-3 parts of triisopropanolamine, 1-3 parts of sodium sulfate, 0.05-0.2 parts of modified graphene oxide, and 100-200 parts of water. The modified fly ash prepared by the present invention has excellent mechanical properties, high early strength and late strength, good fluidity, and meets the requirements of cement-based building materials. At the same time, the modified fly ash uses fly ash as raw material, saves costs and increases economic benefits, and realizes the resource utilization of solid waste.

The invention discloses a ball mill for producing fused quartz powder, comprising a mounting seat, wherein a driving device and two groups of mounting frames are respectively mounted on the top of the mounting seat, and a ball milling barrel is sleeved between the two groups of mounting frames, wherein the driving device is respectively composed of a motor and meshing gears and an outer gear ring, and the outer gear ring is fixedly mounted on the outer wall of the ball milling barrel, and a movable adjustment mechanism is arranged on one side of the interior of the mounting seat; the invention facilitates the linkage coordination of the pulverizing roller structure of the pulverizing roller through the structural coordination of the pulverizing mechanism, and can promote the discharge of fused quartz in the feed port by the reciprocating movement of the tamping rod while the pulverizing roller pulverizes the material, thereby avoiding blockage in the discharge process, and at the same time, the molten quartz is promoted to be secondary crushed by the coordination of the pulverizing rod and the pulverizing teeth under the material guiding coordination of the material guiding seat, so that the material can be repeatedly crushed by the structural linkage, thereby enhancing the pulverizing effect.

The invention relates to the technical field of ball-milling devices, and discloses a ball-milling treatment device for intermediate alloy preparation, the ball-milling treatment device comprises a ball-milling cylinder, an impurity discharge area is arranged in the middle of the ball-milling cylinder, a coarse grinding unit is slidably connected to one side in the ball-milling cylinder, a fine grinding unit is arranged on the other side in the ball-milling cylinder, and when the coarse grinding unit is connected with the fine grinding unit, the coarse grinding unit is connected with the fine grinding unit. When the coarse grinding unit is separated from the fine grinding unit, the impurity discharging area is communicated with the coarse grinding unit and the fine grinding unit, the coarse grinding unit is used for performing coarse grinding treatment on the intermediate alloy, a feeding opening is formed in the side, away from the impurity discharging area, of the coarse grinding unit, and the coarse grinding unit is rotationally connected to the upper portion of a first supporting base; and the fine grinding unit is used for performing fine grinding treatment on the intermediate alloy. And through the arrangement of the first hemisphere protruding blocks in the coarse grinding unit and the second hemisphere protruding blocks in the fine grinding unit, the probability of irregular movement of materials and media is increased, the encountering probability of the media and the materials in the movement process is increased, and then the collision probability of the media and the materials is increased.

The invention discloses an anti-seepage high-strength cement glaze and a preparation method thereof. The concrete is prepared from 20 to 35 parts of wollastonite, 15 to 25 parts of diopside, 8 to 15 parts of spodumene, 5 to 12 parts of kaolin, 3 to 8 parts of quartz sand, 2 to 6 parts of aluminum oxide micro powder, 1 to 4 parts of zirconium oxide micro powder, 0.5 to 1.5 parts of polycarboxylic acid water reducing agent, 0.3 to 1 part of texanol coalescing agent, 0.1 to 0.5 part of organic silicon defoaming agent, 0.2 to 0.8 part of sodium hexametaphosphate dispersing agent, 0.3 to 0.9 part of hydroxyethyl cellulose thickening agent, 15 to 25 parts of water and 0.5 to 2 parts of nano titanium dioxide. And 0.2-1 part of a rare earth oxide. Through careful material selection and process optimization, the cement glaze has excellent performance, multiple high-quality raw materials cooperate, compression resistance, impermeability, bonding strength and the like are improved, functional components endow self-cleaning and anti-aging performance, the preparation process improves glaze quality and stability, constructability and adhesiveness are ensured, the glaze is widely applicable, the service life of a building material can be prolonged, and the cost is reduced. The maintenance cost is reduced, and diversified building requirements are met.

The utility model relates to an acid -resistant ball mill system, including feeding mechanism, ball mill and cylinder screen, feeding mechanism includes sand feeding device, belt feeding chute and buffer feed bin, and the outlet of sand feeding device and belt feeding chute all are connected with the bin communication of buffer feed bin, and the inner wall of sand feeding device and buffer feed bin all is provided with rubber lining, and the chute of belt feeding chute is the structure of bottom wall thick sidewall thin, the ball mill cylinder inner wall is provided with three layers of acid -resistant anticorrosive sheet, the ball mill feed inlet, ball mill discharge port and cylinder screen screen frame all are stainless steel framework and anticorrosive rubber layer integration composite and form, and anticorrosive rubber layer is sprayed in the inner surface of stainless steel framework, the utility model discloses through the overall reconstruction feeding mechanism, ball mill and cylinder screen, has improved the durability, operating stability and maintenance convenience of equipment under the acidic medium environment obviously, provides an economic, efficient, stable ball mill system for acid material.

The present invention relates to the technical field of carbonyl iron powder, and discloses a device and a method for preparing carbonyl iron powder, wherein the device for preparing carbonyl iron powder comprises a grinding part, wherein the grinding part comprises a base, wherein the base is rotatably connected to a cylinder through a first bearing seat and a second bearing seat arranged on the upper surface thereof, and an end of the cylinder close to the second bearing seat is designed to be open. The device and the method for preparing carbonyl iron powder can effectively solve the problem that when a ball mill is used to prepare flaky carbonyl iron powder in the prior art, the production loading amount of different batches is different, while the ratio of raw materials to grinding balls in the ball mill is rated unchanged, and when the loading amount in the ball mill is too small, the impact force is insufficient and the ball milling time is prolonged; when the loading amount in the ball mill is too large, the distance between the grinding balls is too close, resulting in over-grinding, generating unnecessary fine particles or agglomerates, thereby affecting the particle size and yield of the carbonyl iron powder.

The present application relates to the technical field of artificial board, and particularly relates to a method for preparing a no-glue adhesion environment-friendly board by microbial conversion of forest bamboo fibers, comprising the following steps: S1: forest bamboo fiber powder, marine arthropod dry shell and HEBES / BuLi mixture are ultrasonically oscillated and stirred in a butanol-water solution, and wet fibers are obtained by pressure filtration; S2: after the wet fibers are sterilized, hot Clostridium thermocellum-Clostridium thermohydrosulfuricum complex bacteria fermentation and complex enzyme preparation enzymolysis are added, and no inorganic powder, calcium stearate and trimethylchlorosilane are reacted, and fiber-inorganic compound wet powder is obtained by pressure filtration; S3: the compound wet powder is ball milled and dried to obtain modified compound powder; S4: the modified compound powder is mixed with thermoplastic resin, lubricant and hygroscopic master batch to perform intensive mixing and granulation; and S5: the no-glue adhesion environment-friendly board is obtained by extrusion molding. The present application can solve the problems of formaldehyde release of artificial board and poor compatibility of fibers and polyolefins in the prior art, and can realize no formaldehyde glue bonding and improve the mechanical properties, water resistance and mildew resistance of the board.

The utility model relates to graphite processing technical field, and the specific field is a ball mill for graphite, in order to solve the ball mill of prior art in ball mill, the single direction of steel ball throwing, falling, ball mill efficiency still has the space technology problem of further promotion, include: ball mill jar, lining plate, spiral rib, feed plate, support, feeding mechanism, bearing frame, gear ring, gear, pivot, filter ball mechanism, when ball milling, the same conveying direction of adjacent ball mill jar is controlled through two different pivots, because the spiral direction of adjacent spiral rib is opposite, so the adjacent ball mill jar is opposite, when raw materials advance along the conveying direction of ball mill jar, alternately be thrown by two different direction steel balls, the ball mill effect is better, greatly promotes the ball mill efficiency, because the filling rate of steel ball in ball mill jar is 30% 50%, under the interaction between centrifugal force and steel ball, the steel ball will not be pushed by spiral rib, but will be distributed in ball mill jar, guarantees the ball mill effect.

The invention relates to the technical field of aluminum-based composite materials, and discloses a preparation method of an in-situ A13Ti / Al composite material. The method comprises the following steps: carrying out high-energy ball milling on MAX-phase ceramic particles (Ti2AlC or Ti3AlC2) and aluminum powder to obtain first raw material powder; performing high-energy ball milling on the first raw material powder and aluminum powder to obtain second raw material powder; and the second raw material powder is subjected to cold press molding, powder metallurgy sintering and plastic deformation machining, and the in-situ A13Ti / Al composite material is obtained. According to the method, large-scale engineering preparation can be realized, and the problems that particles are easy to agglomerate and the addition amount is limited when the nanophase is used as a raw material are solved. Meanwhile, the MAX phase can be greatly refined through high-energy ball milling, high-energy defects and diffusion channels are introduced, interface reaction is promoted, the average particle size of A13Ti in the A13Ti / Al composite material is 0.05-0.8 mu m, the content of the A13Ti is 10-40 vol.%, the content of the unreacted MAX phase is smaller than 2 wt.%, and therefore the A13Ti / Al composite material with high modulus, high strength and high heat resistance is obtained.

The utility model relates to a ball mill of an acid-resistant ball milling system, three layers of acid-resistant anti-corrosion plates are arranged on the inner walls of a barrel and a feeding and discharging end cover of the ball mill, the three layers of acid-resistant anti-corrosion plates comprise rubber plates, protective plates and rubber lining plates, the rubber plates are tightly attached to the inner walls of the barrel and the feeding and discharging end cover, the protective plates are laid on the inner sides of the rubber plates, and the rubber lining plates are arranged on the inner sides of the protective plates. The rubber lining plate is laid on the inner side of the protection plate. The three layers of acid-resistant and corrosion-resistant plates are arranged on the inner walls of the ball mill barrel and the feeding and discharging end cover, so that triple acid-resistant and corrosion-resistant protection is formed on the inner wall of the whole ball mill, and the ball mill can well adapt to ball milling and pre-leaching of acid materials.

This invention relates to the field of lithium battery material recycling technology, specifically to a method for recycling and utilizing cathode materials from retired lithium iron phosphate batteries. The recycled retired lithium iron phosphate battery cathode materials are crushed, and the fragments are soaked in a solvent with stirring. After filtration, the filter residue is repeatedly washed with deionized water and dried to obtain coarse powder of the recycled cathode material. The coarse powder is subjected to ICP testing, and lithium, iron, phosphorus, grinding aids, and anhydrous ethanol are added for wet ball milling. After ball milling, the powder is dried to obtain a precursor. The precursor is then sintered under a nitrogen atmosphere to obtain the lithium iron phosphate cathode material. This method for recycling retired lithium iron phosphate battery cathode materials is simple, environmentally friendly, and economically efficient. The recycled cathode material meets the requirements for use in the battery industry.

This invention belongs to the field of inorganic nanoparticle preparation technology, and relates to a ball milling modification method for bifunctionalized thin-layer hexagonal boron nitride: Hexagonal boron nitride powder, guanidine hydrochloride, and urea are continuously heated and stirred to obtain a homogeneous mixture of a eutectic solvent formed by guanidine hydrochloride and urea and the hexagonal boron nitride powder; this mixture is poured into a ball mill jar containing grinding balls and a liner, and a certain amount of ethanol and water are added as dispersants for high-energy ball milling; after the material is separated from the grinding balls, the milled material is vacuum filtered, dried, and the resulting powder is dispersed in water, then ultrasonicated, allowed to stand, vacuum filtered, and dried to obtain bifunctionalized thin-layer hexagonal boron nitride. This invention not only has the advantages of readily available raw materials and simple process, but also high efficiency, environmental friendliness, and low energy consumption. The hexagonal boron nitride obtained by this method has thinner layers, good biocompatibility, low relative density, and good thermal conductivity.

The utility model relates to the technical field of aluminum powder processing, in particular to an aluminum powder ball mill which comprises a base, a support, an inner tank body, an outer tank body and a driving assembly used for driving the inner tank body and the outer tank body to rotate, a coarse grinding chamber is arranged in the inner tank body, a plurality of coarse grinding steel balls are arranged in the coarse grinding chamber, and the outer tank body is arranged in the coarse grinding chamber. A coarse grinding structure is arranged on the inner wall of the coarse grinding chamber, a feeding port communicated with the coarse grinding chamber is formed in the inner tank body, a fine grinding chamber is formed between the inner side of the outer tank body and the outer side of the inner tank body, a fine grinding structure is arranged on the inner side wall of the fine grinding chamber, and a plurality of fine grinding steel balls are arranged in the fine grinding chamber. A discharge port communicated with the fine grinding chamber is formed in the outer tank body; a plurality of sieve pores communicated with the coarse grinding chamber and the fine grinding chamber are formed in the inner tank body; according to the aluminum powder ball mill, coarse-ground aluminum powder can be screened more easily, the screening effect is better, the ball milling efficiency of the aluminum powder can be further improved, and the machining period of the aluminum powder is shortened.

The utility model discloses a ball mill lining structure which comprises a first lining plate and a second lining plate, the first lining plate and the second lining plate are alternately mounted on the inner wall of a ball mill, a mounting plate is fixed to the first lining plate, an activation lining plate is detachably mounted on the mounting plate, a through groove is formed in the activation lining plate, and a sieve plate is mounted in the through groove; a baffle is fixed to the second inner lining plate, the multiple activation lining plates and the multiple baffles on the same plane jointly form a material blocking ring, a fixing plate is fixed to one side of the mounting plate, a mounting groove is formed in the fixing plate, and one side of each activation lining plate is located in the mounting groove. According to the utility model, the mounting plate is fixed on the lining plate, so that a complete lining is formed in the ball mill, meanwhile, the activation lining plate can be independently detached, a detaching space is reserved through the baffle, maintenance and replacement are facilitated, and the sieve plate is mounted on the activation lining plate, so that the screening efficiency is further improved, and the ball mill is more uniform in discharging and finer in fineness.

The utility model discloses a ball feeding device of a ball mill, which comprises a weighing hopper, a ball feeding pipe and a plurality of steel ball storage tanks, the outlet of each steel ball storage tank is respectively provided with a discharge gate valve, the outlet of each steel ball storage tank is communicated with the inlet of the weighing hopper, the outlet of the weighing hopper is communicated with the inlet of the ball feeding pipe, and the ball feeding pipe is communicated with the discharge gate valve. An outlet of the ball feeding pipe is communicated with the middle top end of a feeding chute of the ball mill. The steel ball feeding device has the advantages that the steel ball storage box and the weighing hopper are arranged, and the outlet of the weighing hopper is communicated with the feeding chute of the ball mill through the ball feeding pipe, so that automatic mixing of steel balls can be realized, the added steel balls and materials enter the ball mill through the feeding chute together, stopping for feeding is not needed, on one hand, online ball feeding is realized, and the ball milling efficiency is improved; on the other hand, repeated shutdown for ball feeding is not needed, and the service life of equipment is prolonged.

The utility model relates to a feeding mechanism of an acid-resistant ball milling system, which comprises a sand setting feeding device, a belt feeding chute and a buffer feeding bin, outlets of the sand setting feeding device and the belt feeding chute are both communicated with a stock bin of the buffer feeding bin, and an outlet of the buffer feeding bin is communicated with a feeding port of a ball mill; rubber lining plates are arranged on the inner wall of the sand setting feeding device and the inner wall of the buffering feeding bin, and a chute body of the belt feeding chute is of a structure with the thick bottom and the thin side wall. According to the utility model, stable and uniform acidic material supply can be provided for the ball mill by transforming the sand setting feeding device and the belt feeding chute, and meanwhile, the buffer feeding bin is additionally arranged, so that the fed materials of the two feeding devices at the front end can be effectively buffered, and the impact of directly feeding the materials into the feeding hole of the ball mill is reduced; the service life of the ball mill feeding hole is prolonged.

The utility model relates to the technical field of ball mills, in particular to a composite mineral powder superfine ball mill processing device for producing ceramsite proppants, which comprises a grinding module and a screening module, the grinding module comprises a cylinder body, the cylinder body is rotatably connected with a support frame I, the screening module comprises a connecting cylinder, the cylinder body is fixedly connected with the connecting cylinder, and the support frame I is fixedly connected with the connecting cylinder. The connecting cylinder is rotationally connected with a discharging frame, the discharging frame is fixedly connected with a second supporting frame, and a plurality of round holes are formed in the side face of the connecting cylinder. According to the utility model, the screening barrel is fixedly connected with the plurality of screening nets, after part of mineral powder raw materials fall on the screening barrel, the mineral powder raw materials can be screened through the screening nets, and certain raw materials which are subjected to ball milling in advance can fall out of the blanking frame, so that the possibility of excessive ball milling is reduced as much as possible, and meanwhile, the raw materials which are subjected to ball milling are separated; the interference on the other unprocessed raw materials is avoided as much as possible, and the ball milling and crushing efficiency of the mineral powder raw materials is favorably improved.