9results about How to "Improve beneficiation efficiency" patented technology

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 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 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 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 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.