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.