21results about How to "Improve beneficiation efficiency" patented technology

The invention discloses a method for recovering iron and titanium in vanadium titano-magnetite, and relates to the technical field of vanadium titano-magnetite beneficiation. Raw ore is crushed, and then is subjected to roller milling and screening to obtain oversize and undersize products; undersize products are subjected to weak magnetic pre-selection, tailings obtained after weak magnetic pre-selection and strong magnetic pre-selection are subjected to strong magnetic pre-selection, concentrate obtained after weak magnetic pre-selection and strong magnetic pre-selection are sequentially subjected to first-stage grinding, first-stage weak magnetic separation, second-stage grinding, second-stage weak magnetic separation and second-stage weak magnetic concentration, final iron ore concentrate is obtained, the obtained tailings are combined into iron separation tailings, then the iron separation tailings are subjected to titanium separation grinding, medium magnetic iron removal and strong magnetic roughing, and iron separation tailings are obtained. And tailings obtained after strong magnetic roughing are subjected to strong magnetic scavenging, concentrates obtained after strong magnetic roughing and strong magnetic scavenging are subjected to gravity roughing and gravity concentration, and final titanium concentrates are obtained. By adopting conventional crushing, high-pressure roller grinding, magnetic separation, pre-selection and tailing discarding, the subsequent ore grinding and selecting cost can be effectively reduced, the iron and titanium grades of the ore entering the grinding process are improved, high efficiency and energy conservation are achieved, and the ore dressing efficiency is improved.

The invention relates to an ion regulation inhibitor for preventing slurry from covering, application and a lepidolite ore beneficiation method. The invention discloses an ion regulation inhibitor for preventing slime from covering. The ion regulation inhibitor comprises a starch inhibitor, a sodium salt inhibitor and a metal ion regulator. The invention provides application of the ion regulation inhibitor capable of preventing the slime from covering in ore dressing of lepidolite ore. The invention provides a beneficiation method of lepidolite ore. The beneficiation method comprises the following steps: adding water into ore powder of the lepidolite ore to prepare ore pulp; a pH regulator, a collecting agent and the ion regulation inhibitor are added into the ore pulp for roughing, and roughing concentrate and roughing tailings are obtained; the ion regulation inhibitor is added into the roughing concentrate for concentration, and lepidolite concentrate is obtained; and a collecting agent is added into the roughing tailings for scavenging, and flotation tailings are obtained. The problems that an existing lepidolite ore beneficiation method is large in lithium ore loss, low in beneficiation efficiency and complex in process are solved.

The invention discloses a novel mineral processing technology for Anshan type iron ore. The method comprises the specific steps that raw ore is subjected to a three-section two-closed-circuit crushing and screening process, and then qualified materials are obtained; after powder is subjected to wet-type pre-concentration, concentrate enters a grinding machine to be subjected to ore grinding operation, materials discharged by the grinding machine are subjected to weak magnetic roughing, and tailings can be thrown early. And the concentrate is graded through a hydrocyclone set and a high-frequency screen to form closed-loop grinding, qualified materials enter two sections of weak magnetic concentration and electromagnetic elutriation, final concentrate is obtained through filtering, magnetic tailings of all the sections are combined for tailings recovery, and the final tailings are subjected to dry discharging operation to obtain tailings and tail mud products. The combined beneficiation process of crushing, screening, large block dry separation, secondary screening, high-pressure roller grinding, wet-type pre-separation, grading, ore grinding, low-intensity magnetic separation, concentration, filtering and the like is adopted, qualified iron ore concentrate can be obtained, and magnetic tails of all sections can be used as building raw materials such as cement or gravel aggregate. The process is simplified, the milling grade is improved, the system production capacity is improved, the beneficiation cost is reduced, and the economic benefit of a beneficiation plant is increased.

The invention provides a low-grade lithium ore extraction device which comprises an ore dressing bin, electrode plates, an insulating tape conveyor, a winnowing tank, a feeding pipe, a stock bin and a first fan, the ore dressing bin is vertically installed through a support, the two electrode plates are symmetrically installed in an inner cavity of the ore dressing bin, and the insulating tape conveyor surrounds the outer sides of the electrode plates; the winnowing tank is arranged on the lower portion of the mineral separation bin. Lithium ore powder flows between the electrode plates from bottom to top through wind power, the speed of the ore powder can be controlled through the wind power, so that the time of the ore powder in an electrostatic field is prolonged, the ore powder can effectively deflect in the electrostatic field, the ore dressing efficiency is improved, meanwhile, the winnowing tank is arranged between the ore dressing bin and the feeding pipe, and the ore dressing efficiency is improved. And the air speed is reduced after the pipe diameter of the middle of the winnowing tank is increased, so that the lithium ore powder with large particle size is settled under the action of gravity so as to be conveniently collected and subjected to secondary grinding for ore separation again, the ore separation efficiency is improved, and the extraction efficiency of lithium resources is improved.

The utility model provides a beneficiation dedusting recovery device, which relates to the field of zinc ore beneficiation, and comprises a box body, a crushing mechanism used for crushing ores is arranged in the box body, a screening mechanism used for vibrating and screening the ores is arranged below the crushing mechanism, and the screening mechanism is arranged below the box body. The outer surface of the box body is provided with a dust removal mechanism used for absorbing and recycling dust. The dust removal mechanism comprises a dust suction machine fixedly connected to the outer surface of the box body, and the input end of the dust suction machine is fixedly communicated with an input pipeline. According to the beneficiation dust removal and recovery device, the dust suction machine drives the input pipeline and the connecting pipeline to suck dust generated in the box body, dust generated in the machining process is effectively captured, the dust concentration of a working area is reduced, environmental pollution is reduced, the sucked dust is conveyed into the settling box through the output pipeline to be settled, and the working efficiency is improved. And precipitated fine zinc ore particles can be recycled, and the utilization rate of resources is increased.

The utility model relates to the technical field of inflatable flotation machines, in particular to a wear-resistant mechanical stirring shaft of an inflatable flotation machine, which is arranged in the inflatable flotation machine, the inflatable flotation machine comprises a stirring shaft main body, a steady flow plate and an impeller, the steady flow plate and the impeller are coaxially arranged, and the stirring shaft main body penetrates through the steady flow plate and the impeller. A hexsteel is arranged on the outer side of the stirring shaft main body between the steady flow plate and the impeller in a surrounding manner, an anti-corrosion layer is arranged on the hexsteel, the anti-corrosion layer is arranged on the stirring shaft in a surrounding manner, and the hexsteel is arranged in the anti-corrosion layer. Through the arrangement of the hexsteel, the strength of the stirring shaft main body is improved, and the anti-corrosion layer is arranged on the hexsteel, so that the strength of the hexsteel and the stirring shaft main body can be further improved through the anti-corrosion layer, and under the action of the anti-corrosion layer, the anti-corrosion performance of the stirring shaft main body is improved. The conditions of fracture, deformation, eccentricity and the like caused by insufficient strength frequently occurring at the joint of the stirring shaft main body and the impeller of an existing inflatable flotation machine due to dilute acid corrosion, ore pulp scouring, accumulated ore grinding and the like can be avoided.

The invention provides a dry beneficiation method for amazonite with non-uniform dissemination granularity, which comprises the following steps of: (1) crushing raw ore by a jaw crusher, and grading into coarse-grade oversize and undersize crushed ore samples; roughing the coarse-grade oversize ore sample meeting the required particle size into first-stage rough concentrate and first-stage roughing tailings by adopting an intelligent picker; performing intelligent sorting and fine selection on the first-stage rough concentrate again; (2) screening the medium-grade mixed ore samples into medium-grade oversize ore samples and medium-grade undersize ore samples, and carrying out two-stage roughing-two-stage concentration on the medium-grade oversize ore samples meeting the required granularity; and (3) the fine-grade mixed mineral samples are screened into fine-grade oversize and undersize mineral samples, and the fine-grade oversize mineral samples meeting the required granularity are subjected to three-section roughing and three-section concentration. The primary granularity is effectively protected, and the beneficiation efficiency of amazonite with different disseminated granularities is greatly improved.

The utility model relates to a kind of fine particle grade mineral medium spiral chute ore-dressing equipment, including spiral chute, the internal flow guide mechanism of spiral chute is provided, the flow guide structure includes two spiral tracks and a flow guide box, two the spiral track is respectively arranged on the outer spiral inner side wall and inner spiral inner side wall of spiral chute, the flow guide box is slidably installed between two spiral tracks by driving cone wheel, the driving cone wheel is installed in flow guide box both sides, the flow guide box both sides are connected with clamping plate, flow guide roller is rotatably connected between two the clamping plate, the flow guide roller is in contact with spiral chute inner bottom surface.This equipment is combined ingeniously by spiral chute and flow guide mechanism, can make mineral evenly distribute on spiral chute and continuously flow with water flow, so as to realize the efficient flow guide and accurate sorting of mineral.

The utility model relates to an automatic material distributing device of a mineral separation crushing system, which comprises a turning plate, a motor and a support, the bottom of the turning plate is sleeved with a shaft rod in parallel. Bearings are fixed to the two ends, close to the turning plate, of the shaft rod respectively. One end of the shaft rod is sleeved with a rotating structure; one end of the rotating structure is telescopically connected with the hydraulic cylinder; one end of the hydraulic cylinder is connected with an electrical circuit of the motor; the bottom of the motor is fixedly connected with a support; a control box is arranged on the plate face of one side of the support. One end of the motor is connected with a control system in the control box through a motor control line, and the device does not need to be manually operated for a long time, so that the labor intensity of workers is greatly reduced. And meanwhile, the problem of inaccurate material distribution caused by factors such as artificial fatigue is solved through automatic control, the stability and accuracy of material distribution operation are improved, and then the beneficiation index can be improved.

The present application relates to the technical field of phosphate ore dressing, and particularly relates to a continuous positive and reverse flotation method for medium and low grade phosphate ore. The preliminary separation of phosphate ore and gangue ore is realized through 'two-stage crushing-gradient magnetic separation-cyclone classification', then the tailings of magnetic separation and coarse-grained phosphate ore are re-ground by a tower mill, and then 'positive flotation-reverse flotation-reverse flotation again' is carried out on the coarse phosphate ore based on a micro-bubble flotation column. In the positive flotation stage, combined depressants are used to efficiently depress gangue minerals such as quartz and dolomite, in the reverse flotation I stage, carbonates are deeply removed, in the reverse flotation II stage, an activator is introduced to improve the adsorption activity of silicate impurities, and silicate minerals are deeply removed, so that the efficient flotation of medium and low grade phosphate ore is realized. The flotation method provided by the present application effectively improves the flotation efficiency of medium and low grade phosphate ore, improves the quality and recovery rate of the concentrate, and achieves good flotation effect.

The vertical vibration concentrating machine comprises a machine body and a feeding hopper, an opening is formed in the top end of the machine body, and the feeding hopper is fixedly installed at the opening in the top end of the machine body; the cover plate is arranged on the outer side of the outer wall of the machine body; the vibrating mechanism is mounted in the machine body and the cover plate; the discharge hole is formed in the wall surface of the machine body and is positioned at the lower part of the machine body; the feeding channel is arranged at the bottom end of the feeding hopper, the device relates to the technical field of ore dressing machines, and after large-particle materials are preliminarily screened, the screening mechanism can change the moving direction of the materials, so that the large-particle materials pass through the screening plate again to be screened for the second time. The contact opportunity of materials and the sieve plate is increased, and the screening thoroughness is improved; by changing the moving direction of the materials, the materials accumulated on the sieve plate can be released and dispersed, and therefore blockage and omission are reduced.

The invention discloses a flotation machine for lepidolite beneficiation, relates to the technical field of lepidolite beneficiation, and provides the following scheme aiming at the problems that during lepidolite beneficiation, large-particle ore is difficult to fully cover by a flotation reagent, and the reagent is difficult to reach lepidolite wrapped in the flotation reagent. A power output shaft of the first driving motor is in transmission connection with a first connecting rod through a bearing, a round hole is formed in the connecting frame, and the portion, located in the round hole, of the first connecting rod is fixedly connected with a rotating gear. The flotation machine for lepidolite beneficiation is provided with the ore crushing assembly, the beneficiation efficiency is improved, due to the fact that crushed particles are more uniform in size, a flotation reagent can make more sufficient contact with the surfaces of lepidolite particles, crushed small-particle ore can provide a larger contact area, and the flotation efficiency is improved. And the leaching agent can react with components such as lithium in the ore more easily, the leaching efficiency is improved, and the flotation recovery rate is increased.

The utility model discloses a multipoint quantitative feeder for a solid powder medicament, which relates to the technical field of mineral separation dosing equipment and comprises a rack, a medicament hopper, a spiral feeder, a mixing chute and a water supply pipeline, the medicament hopper is arranged above the rear side of the rack; the spiral feeder is arranged on the rack below the medicament hopper, the mixing chute is obliquely arranged on the rack on the lower side of the spiral feeder, and a plurality of water supply pipelines are communicated with the upper end of each chute of the mixing chute. The system is simple in structure and low in maintenance cost, reduces the possibility of occurrence of complex equipment faults, does not need extra hybrid power equipment, and reduces energy consumption and operation cost; the method is suitable for multi-section use; the spiral conveyor is combined with the water supply pipeline, the dosing dosage and concentration can be accurately controlled, accurate, uniform and automatic solid powder medicament feeding can be achieved through the structure of the mixing chute, and the mineral separation efficiency and quality are improved.

The low-grade tin ore preparation equipment comprises a rack, a smashing magnetic separation device and a flotation machine, the smashing magnetic separation device is installed on the rack, and the smashing magnetic separation device comprises a roller, a direct-current magnetic attraction assembly, an alternating-current demagnetization assembly, a driving mechanism and an iron collecting groove; the direct-current magnetic attraction assembly and the alternating-current demagnetizing assembly are sequentially arranged in the rotating direction of the roller, the iron collecting groove extends into the roller and is located below the alternating-current demagnetizing assembly, a plurality of grinding balls are arranged in the roller, and the diameter of each grinding ball is larger than the width of the discharging port. The direct-current magnetic attraction assembly attracts iron ore in tin ore materials to the inner wall of the roller and cannot attract the grinding balls to the inner wall of the roller, and the flotation machine is located at the discharging opening. The tin ore crushing and magnetic separation device has the beneficial effects that tin ore crushing and magnetic separation are completed in the roller, the tin ore crushing and magnetic separation efficiency is effectively improved, the advantage that the tin ore separation efficiency is high is achieved, and the tin ore crushing and magnetic separation device is particularly suitable for ore separation operation of low-grade tin ore.

The invention discloses a method for preparing composite micro powder from low-grade refractory iron ore, which comprises the following steps: crushing the low-grade refractory iron ore to a particle size range suitable for flotation, and removing gangue minerals with larger particles through screening to obtain ore to be treated; the method comprises the steps that ore to be treated is subjected to wet grinding, in the wet type ore grinding process, a flotation reagent is sprayed into the ore in the vertical direction, it is ensured that the reagent evenly covers ore particles, preliminary dissociation of gangue minerals and preliminary separation of phosphorus minerals are promoted, and ore pulp is obtained; the ore pulp is input into a flotation tank for flotation; and the flotation concentrate is further finely ground, and target composite micro powder with the particle size being 20-40 micrometers is obtained. Through the wet grinding and flotation combined process, the iron minerals, gangue minerals and phosphorus minerals are effectively separated by accurately controlling the dosage and concentration of the agents and matching with reasonable ore grinding time and temperature adjustment, and finally the composite micro powder is obtained.

The utility model relates to the technical field of flotation machines, in particular to a wear-resistant flotation machine scraper bearing, which is arranged in an inflatable flotation machine and comprises a bearing main body and a bearing seat, a polytetrafluoroethylene sleeve is sleeved outside the bearing main body, and a polytetrafluoroethylene layer is arranged on the inner wall of the bearing main body; and a polytetrafluoroethylene lining is arranged on the bearing seat. According to the utility model, the polytetrafluoroethylene sleeve is sleeved outside the bearing main body, the polytetrafluoroethylene layer is arranged on the inner wall of the bearing, and the polytetrafluoroethylene lining is arranged on the bearing seat, so that under the combined action of the polytetrafluoroethylene sleeve and the polytetrafluoroethylene lining, the conditions that the bearing main body is corroded, ore pulp enters and is abraded and the like are avoided, and the normal work is ensured; normal and stable production of the flotation machine is guaranteed, the service life of a scraper bearing of the flotation machine is prolonged, mineralized bubbles can be effectively scraped and collected in time, and therefore the beneficiation efficiency is improved, the production cost is reduced, and the production efficiency is guaranteed.

The invention provides a reagent composition for beneficiation of lithium-tantalum-niobium polymetallic ore and a beneficiation method, and belongs to the technical field of beneficiation of lithium-tantalum-niobium ore. According to the composition for beneficiation of the lithium-tantalum-niobium polymetallic ore, provided by the invention, the desliming efficiency is greatly improved by precisely regulating and controlling the proportion of organic substances, namely the polyacrylamide compound, the polymeric chloride and the inorganic substances in the desliming agent; according to the flotation collecting agent, an amine compound, an organic acid substance and an organic sulfonate compound are compounded, the proportion is precisely regulated and controlled, the flotation collecting agent is used for the lithium-tantalum-niobium polymetallic ore beneficiation method of non-magnetic gangue magnetic separation and pre-removal-lithium ore flotation separation-tantalum-niobium ore reselection and enrichment, and quality improvement and efficiency improvement in the flotation process are achieved. The reagent composition is combined with a beneficiation method to be applied to beneficiation of the lithium-tantalum-niobium polymetallic ore, the beneficiation efficiency is improved, and the beneficiation cost is reduced.

The invention discloses beneficiation equipment capable of reducing noise based on beneficiation operation, and relates to the technical field of beneficiation operation, the beneficiation equipment comprises a protection assembly, a dust removal assembly is mounted at the rear end of the protection assembly, and a conveying assembly, a knocking assembly and a material guide assembly are mounted on the inner wall of the protection assembly. The dust removal assembly comprises a supporting plate, and a gear motor and a pump body are installed at the top of the supporting plate. According to the beneficiation equipment capable of reducing noise based on beneficiation operation, the dust removal assembly is adopted, when the beneficiation equipment is used, the dust removal effect can be achieved, and dust is prevented from entering air during beneficiation operation to cause air pollution; the conveying assembly is adopted, when the ore dressing equipment is used, ore dressing work can be continuously carried out, the ore dressing efficiency is improved, meanwhile, multiple screening can be carried out, and the applicability of the equipment in the using process is improved; and a filtering frame, a filtering net and a material guiding assembly are adopted, sewage generated during dust falling can be recycled, and waste of water resources is reduced.

The invention discloses a mining method for grade-divided pseudo-inclined mining, separation, separate filling and gently inclined medium-thick phosphorite, and relates to the technical field of underground mining of non-metal ores, the mining method comprises the following steps: dividing an ore body, and arranging along the trend of the ore body in a segmented and middle-section manner; mining preparation cutting is conducted, a middle-section haulage roadway, an air return roadway and a connection roadway are arranged, tunneling cutting is conducted to go uphill, and crushing and sorting equipment is integrated; pseudo-inclined grade-divided layered stoping is carried out, differential ore breaking is carried out through horizontal shallow holes in the upper layer and fan-shaped medium-length holes in the lower middle portion, and combined supporting is matched; partitioning and grading filling, retaining wall and water filtering system building, tailing reuse bottoming, and strip chamber and pillar differential lime-sand ratio filling; and finally, fully mining and fully filling the chambers and the pillars in sequence. The mining method provided by the invention can improve the ore resource recovery rate of gently inclined phosphorite, reduce the dilution rate, improve the mining efficiency, enhance the safety, reduce the production cost, promote environmental protection and the like, and has important significance for efficient, safe and environment-friendly mining of gently inclined phosphorite resources in China.

A method for applying an inhibitor curdlan to direct flotation desilicication of magnesite belongs to the technical field of direct flotation separation and purification of magnesite, and comprises the following steps: preparing a curdlan aqueous solution, crushing raw ore, and grinding the crushed raw ore to a proper size fraction to obtain ore pulp; the pH value of the ore pulp is adjusted, and a reverse flotation collecting agent is added for reverse flotation; and in-tank products obtained through reverse flotation are subjected to direct flotation, firstly, the pH value of ore pulp is adjusted, an inhibitor and a direct flotation collecting agent are sequentially added for roughing, in-tank products obtained through roughing are direct flotation tailings, and foam products obtained through three times of concentration of foam products obtained through roughing are flotation concentrates. The inhibitor curdlan has renewability and biodegradability, is relatively low in price, small in reagent usage amount and good in flotation separation effect, can greatly reduce the ore dressing cost and improve the ore dressing efficiency, and has huge advantages in wide application in the industry.