59results about How to "Good beneficiation effect" patented technology

The invention provides a quality improvement and impurity reduction ore dressing method of ferromagnetic minerals. The method is characterized in that the ferromagnetic minerals are cleaned, and the cleaning process comprises the following steps: 1, adding a flotation agent to crude concentrates, and carrying out size mixing, wherein the weight of ores with the granularity of 0.07-4mm in the crude concentrates is 80-90% of the total weight of the crude concentrates, and the flotation agent comprises a collector and an inhibitor; and 2, adding a material obtained in step 1 into a floating agglomeration electromagnetic cleaning device, and controlling the magnetic field intensity of the floating agglomeration electromagnetic cleaning device to be 11.94-63.69kA/m, the magnetic field transformation period to be 2-6s and the rising water flow speed to be 2-6cm/s. The method allows high-quality ferromagnetic mineral products to be obtained, greatly reduces the content of impurities, greatly shortens the ore dressing process of the ferromagnetic minerals, and has huge market economic benefit.

The invention discloses a method for efficiently preparing feldspar glazes for ceramics. The method comprises the following specific steps: after raw feldspar ores are crushed, grinding the raw feldspar ores by a high-alumina ball grinding mill, classifying the raw feldspar ores in a spiral manner by a spiral classifier, and screening the raw feldspar ores by a high-frequency classifying screen, so that the sufficient dissociation of feldspar mines and the controlling the granularity can be ensured, the feeding granularity of the fed feldspar mines can be ensured, and conditions for the following magnetic separation and the classifying processes of a cyclone are created; separating and effectively removing magnetic impurities of the raw feldspar ores by the magnetic separation with various intensity in a classifying and multi-section manner of the granularity, increasing the kinds of products, and increasing the recovery of resources. Through the use of the technologies, such as the classification of the cyclone, the permanent magnet iron removal of a drum magnetic separator, the iron removal of a vertical ring pulsating high-gradient strong magnetic separator and the like, the adaptability and the reliability are greatly improved, the quality of the concentrates is effectively ensured and stabilized, the risk due to fluctuation of the impurity content is reduced, the separating efficiency and the comprehensive utilization of resources are improved, and the efficiently comprehensive utilization of the feldspar resources is realized.

The invention provides an ore dressing combination reagent for rutile. The reagent comprises a collecting agent, the collecting agent is phenyl amino acid, a pH value modulation agent, an activating agent, an inhibitor and a foaming agent are further included, and through the technical scheme, the reagent has the beneficial effects that the amino acid rutile collecting agent is adopted, and is poisonless and harmless, green and environment-friendly. The phenyl amino acid is adopted to serve as the collecting agent, the collecting capacity and the selecting capacity of rutile are high, and efficient separation of rutile and gangue mineral in the actual ore flotation can be achieved. The phenyl amino acid is adopted as the collecting agent, in combination with the pH value modulation agent, the activating agent, the inhibitor and the foaming agent, the rutile is subject to ore dressing, the proper matching is adopted, concentrate products with high TiO2 grade and the high recycling rate can be obtained, and the ore dressing effect is far better than that of the prior art.

The invention discloses a multifunctional electromagnetic centrifugal continuous concentrating machine comprising a main frame, an ore collecting barrel on the upper portion of the main frame, a sorting cone inside, an ore feeding tube, a bearing holder on the lower portion of the main frame, a hollow spindle connected to the bearing holder, a transmission wheel, a reverse water flushing pipe, a collecting ring mounted on the hollow spindle, a high-density ore sucking pipe and a medium-density ore sucking pipe and a low-density ore sucking pipe which are mounted on the main frame, weak-magnetic annular material collecting grooves, medium-magnetic annular material collecting grooves, strong-magnetic annular material collecting grooves, a waste collecting annular grooves, 3 to 5 rows of ribs welded to the circumference of the inner wall of the sorting cone, weak, medium and strong magnetic electromagnets mounted on the circumference of the inner wall of the sorting cone, and reverse water flushing holes; the weak-magnetic annular material collecting grooves, the medium-magnetic annular material collecting grooves, the strong-magnetic annular material collecting grooves and the waste collecting annular grooves are mounted on the inner wall of the ore collecting barrel sequentially, and the reverse water flushing holes are adjacent to the electromagnets and are formed in the inner wall of the sorting cone. The multifunctional electromagnetic centrifugal continuous concentrating machine can be applied to magnetic material concentrating and non-magnetic material concentrating, the concentrating efficiency is high, the processing quantity is large, the machine is adaptive to large-scale line production, the machine has the advantages of low power, fine concentrating effect and low cost, energy is saved, and the consumption is reduced.

The invention relates to a beta-hydroxy fatty acid collecting agent for positive floatation of iron ore and application thereof. The beta-hydroxy fatty acid collecting agent is characterized in that the content of the weight percentage of beta-hydroxy fatty acid is over 85 percent of a total collecting agent, and the balance is water and inevitable impurities; the beta-hydroxy fatty acid of the collecting agent mainly comprises thirteen to eighteen carbon atoms; and the weight percent of the beta-hydroxy fatty acid with the thirteen to eighteen carbon atoms is over 95 percent. The beta-hydroxy fatty acid iron mineral collecting agent is a fatty acid class collecting agent capable of forming annular adsorption; and the collecting capacity of the beta-hydroxy fatty acid iron mineral collecting agent is remarkably larger than the adsorption of ore mineral and a common fatty acid class collecting agent carrying out positive anion floatation, thereby obviously increasing the collecting capacity of the collecting agent on the iron mineral.

The invention discloses a device for crushing ores by pressure-relief gas explosion. The device comprises a gas injecting system, a pressure-relief crushing system and a crushed ore collecting system, wherein the gas injecting system is connected with a gas inlet of the pressure-relief crushing system through a gas injecting tube; and a discharge hole of the pressure-relief crushing system is connected with a charge hole of the crushed ore collecting system through a pressure relief tube. The invention further discloses an ore crushing method adopting the device for crushing ores by pressure-relief gas explosion. According to the device and the method, special equipment is used to manually generate pressure-relief gas explosion, and the ores are crushed by utilizing high tensile stress generated during pressure relief of gas explosion; the tensile strength of the ores is much lower than compressive strength and shearing strength of the ores, so that the energy consumption for crushing the ores is low and the process links are less, and therefore, great economic benefits are brought to the industries such as ore dressing and metallurgy.

The invention relates to a beneficiation spiral chute which comprises a spiral chute body supported to be vertical. A radial transverse section curve of the chute body gradually rises from the inner side of the chute body to the outer side of the chute body. The radial transverse section curve of the chute body is a compound curve. The compound curve comprises a first curve section and a second curve section which are successively arranged from the inner side of the chute body to the outer side of the chute body. The tail end of the first curve section and the head end of the second curve section are connected to a first connecting point. The included angle between a curve tangent line of the head end of the second curve section and the horizontal plane is smaller than that between the curve tangent line of the tail end of the first curve section and the horizontal plane. The beneficiation spiral chute not only can unfold and thin a dune high wall outward to improve the looseness of mineral particles, but also can increase the throughput per hour, so that the beneficiation efficiency and effect are better.

The invention relates to a low-temperature quick-dissolving phosphate ore flotation collector and a preparation method thereof. The preparation method comprises the steps that raw materials comprising, by weight, 40-44% of multiple-hydroxy fatty acid, 25-27% of oleic acid, 22-24% of water and 5-13% of AEO3 are added into a reaction kettle and are stirred and mixed at 70-90 DEG C for 20-40 minutes to obtain mixed materials; a caustic soda solution which accounts for 25-35% of the mixed materials is added into the mixed material, wherein the mass concentration of the caustic soda solution is 30%, the reaction temperature is controlled to be 90-100 DEG C, and the reaction is subjected to heat insulation for 100-140 min; and cooling is conducted, and the low-temperature quick-dissolving phosphate ore flotation collector is obtained. The low-temperature quick-dissolving phosphate ore floatation collector has the advantages that the product is quickly dissolved at low temperatures, and a collector solution with the mass concentration being 5% is dissolved within 40 min at the temperature of 40 DEG C; the product low-temperature mineral separation effect is good, a good mineral separation effect can still be achieved at 20 DEG C, and energy consumption is lowered; the product still does not gels at 15-17 DEG C, the equipment fault rate is lowered, and separation concentrator capacity is improved; and the Krafft point of the collector is lowered, the dissolving performance is improved, the collector has high lime soap dispersion, and softening water capability is high.

The invention discloses a method for comprehensive recycling of sandy kaolin containing mica. The method specifically comprises the following steps of crushing raw ore of sandy kaolin containing mica, wiping, and grading, wherein the matter under a screen is kaolin, and the matter on the screen is ground by a high alumina ball mill, graded by a spiral grader, and screened by a high-frequency vibration screen, so as to obtain quartz sand and mica, thereby guaranteeing the stripping and granularity control of iron, titanium and other impurities in the quartz sand, and creating conditions for subsequent magnetic sorting process; magnetically sorting the kaolin and the quartz sand at two different strengths, so as to fully ensure the separation and effective removal of magnetic impurities in the kaolin and the quartz sand, effectively recycle the kaolin and the quartz sand, obtain a product with high quality and high added value, and greatly increase the comprehensive recycling rate of resources. The method has the advantage that while the high-quality kaolin and quartz sand are obtained, the valuable mica can be recycled, the discharge of tailings is effectively reduced, the comprehensive utilization rate of resources is increased, and the added value of the product is increased.

The invention discloses a beneficiation method for extracting phosphorus, reducing calcium and recovering magnesium for calcareous or calcareous and siliceous phosphorite containing high magnesium or low magnesium. The beneficiation method includes the steps that the phosphorite is subjected to multi-stage heat treatment and is then subjected to fluidized roasting, water is added to obtained phosphorite roasting powder for stirring, and sizing is obtained after digestive treatment; the sizing is separated to obtain underflow and overflow, and phosphorus concentrates and filter liquid are obtained after the underflow is filtered; and when the phosphorite contains high magnesium, the filter liquid is merged with the overflow, then carbonization pyrolysis treatment is conducted, and magnesium is recovered. The invention further discloses a beneficiation system which comprises a fluidized roasting system, a tail gas purifying system and a digestion separation system. The fluidized roasting system comprises a fluidized roasting decomposing furnace, a feeding assembly, a suspension preheating assembly, a gas supplying assembly and a combustion assembly; and the beneficiation system further comprises a carbonization pyrolysis system when being used for the high-magnesium phosphorite. The beneficiation system can be adopted for conducting treatment such as suspension preheating, fluidized roasting decomposing, digestion separation and carbonization pyrolysis. The beneficiation method and the beneficiation system have the beneficial effects of being high in efficiency, environment-friendly, capable of saving energy, high in valuable metal recovery rate and the like.

The invention provides a preparation device of a floating agent. The preparation device comprises a first stirring groove, a second stirring groove, a third stirring groove and an agent collecting pool in sequential series connection, wherein the first stirring groove, the second stirring groove, the third stirring groove and the agent collecting groove are in sequential step arrangement, so thatthe floating agent can sequentially and automatically flow to the second stirring groove, the third stirring groove and the agent collecting pool from the first stirring groove through the self gravity. The provided assembly device comprises three stirring grooves; water can be respectively added into each stirring groove for dilution stirring; the stirring effect of the pasty agent is improved, so that the floating agent is more uniform; particles are fewer; in addition, the three stirring grooves and the agent collecting pools are in step arrangement, so that the agent automatically flows tothe subsequent medication device, the agent of each stirring groove can sufficiently flow out; the agent utilization rate is improved; the simple and convenient agent transmission mode is also provided.

The invention relates to an apatite low-temperature flotation collector and a preparation method thereof. The apatite low-temperature flotation collector comprises the following components in parts byweight: 35-55 parts of oxidized paraffin soap, 20-40 parts of soybean oil fatty acid soap and 20-30 parts of sodium fatty acid methyl ester sulfonate. The apatite low-temperature flotation collectordisclosed by the invention can realize effective flotation under the low-temperature condition of 5 DEG C. The apatite low-temperature flotation collector has good biodegradability, and can keep the COD content (less than or equal to 50 mg/L) in flotation tailing water at a low level.

The invention discloses a separation method for tennantite and galena. The method includes the following steps that firstly, inflation and regrinding are conducted; secondly, lead concentrates A are obtained through screening and classifying; thirdly, chemical agent adding and size mixing are conducted; and fourthly, fast flotation separation is conducted so that lead concentrates B and tennantite concentrates can be obtained through floatation. By means of the method, selective ore grinding of the tennantite and the galena is achieved through inflation and regrinding, acid LR serves as the inhibitor of the galena, a beneficiation effect is good, high efficiency and environment friendliness are achieved, and the tennantite and the galena can be effectively separated.

The invention provides a high-frequency vibrating screen and spiral chute combined mineral separation process for separating zircon-titanium ore. The mineral separation process comprises the steps ofconfiguring the concentration of a zircon rough concentrate raw material to be 5-10%, using a high-frequency vibrating screen to sieve the zircon rough concentrate raw material into three particle grades, namely +0.18 mm, +0.12 mm-0.18 mm and -0.12 mm, and obtaining ores of three grades; respectively feeding the ores of the three grades into different spiral chutes for roughing to obtain zircon concentrates 1-3 and ilmenite rough concentrates 1-3 respectively; respectively feeding the ilmenite rough concentrates 1-3 into the different spiral chutes again for spiral chute scavenging, and obtaining zircon concentrates 4-6 and ilmenite rough concentrates 4-6 respectively; finally, respectively feeding the ilmenite rough concentrates 4-6 into a shaking table for shaking table scavenging, and obtaining zircon concentrates 7-9 and ilmenite rough concentrates 7-9; combining the zircon concentrates 1-9 to obtain a zircon product; and combining the ilmenite rough concentrates 7-9 to obtain an ilmenite product. By means of the high-frequency vibrating screen and spiral chute combined mineral separation process for separating the zircon-titanium ore, the obtained zircon and ilmenite are highin grade and recovery rate.

The invention belongs to the technical field of mineral processing equipment, particularly relates to a magnetic roller and a magnetic separator. The magnetic separator comprises a conveying mechanism, a feeding hopper and a plurality of magnetic rollers; the conveying mechanism comprises a machine frame and a conveyor belt. The feeding hopper and the magnetic rollers are all arranged on the machine frame; the conveyor belt is arranged on the upper surfaces of the magnetic rollers and is tightly adhered to the magnetic rollers; the magnetic rollers are arranged on the machine frame at intervals, wherein the material outlet of the feeding hopper is positioned above the conveyor belt. The commonly used magnetic separator at present generally has the defects of insufficient magnetic field, quick belt wear, high operating cost, low ore dressing efficiency and the like. The magnetic separator effectively overcomes above defects, improves the ore dressing efficiency, and is high in practicability and convenient to popularize and apply.

The iron core is fine-ground to attain the basis monomer dissociation, and made into ore slurry with proper concentration, then regulating agent NaOH is added and stirred, and the inhibitor saponified corn starch is added and stirred, and then the activating agent CaO is added and stirred, and finally collecting agent is added, fully stirred so as to obtain the invented product. It is characterized by that the saponified industrial oleic acid in adopted as said invented floatation collecting agent.

The invention belongs to the field of comprehensive utilization of iron mineral, and particularly relates to a method for converting limonite into magnetic iron mineral. According to the method, the limonite is used as raw materials, mineral grinding, magnetizing roasting in a magnetic field and profiling are carried out, and the samples with 60-80% of limonite with particle size of 200 meshes are pressed into 10 mm x 10 mm columns through a forming press; the columns are put into a vacuumized magnetic field heat treatment device with circulating water pumped in to carry out magnetizing roasting, and drying, magnetizing and desulfurizing are complete in the process at the same time. The magnetic field intensity is 0.9-2T, the calcination temperature is 800-950 DEG C, heater preservation is carried out for 5 min after the preset temperature is reached, the mineral is modified as magnetic mineral, mineral samples are cooled through circulation water and ground, and magnetic separation normal mineral dressing is carried out. According to the method, no reducing agent is added, the magnetizing roasting process is carried out under an external magnetic field, conversion of magnetic mineral can be achieved better in a shorter time, and caking cannot generated in the roasting process. The technological process of the method is simple and easy to operate.

The invention discloses a belt conveyor type magnetic concentrator. The belt conveyor type magnetic concentrator comprises a belt conveyor, a magnetic separation barrel and a hopper. The belt conveyor comprises a rack, a motor, a drive roller, a driven roller and a conveying belt. The magnetic separation barrel serves as the driven roller of the belt conveyor to be installed and fixed to one end of the rack through a bearing, and the drive roller is installed and fixed to the other end of the rack through a bearing. The conveying belt wraps the two rollers. The motor is arranged on the rack. An output shaft of the motor is connected with the drive roller and drives the drive roller to rotate. The drive roller drives the driven roller to rotate through the conveying belt. The hopper is arranged below the magnetic separation barrel. A partition plate is arranged in the hopper and is located in the direction the same as the direction of a shaft of the magnetic separation barrel. According to the belt conveyor type magnetic concentrator, a material scraping device is not needed, the structure is simple, ore and the magnetic separation barrel are separated through the belt, and the belt conveyor type magnetic concentrator is convenient to use, simple, efficient, good in beneficiation effect and low in manufacturing cost and using cost.

The invention relates to the technical field of mineral processing, in particular to a flotation device. The flotation device includes a cylindrical vertical flotation cylinder, and an axis of the vertical flotation cylinder is perpendicular to the horizontal plane; the vertical flotation cylinder is internally hollow, an opening is formed in one end face of the vertical flotation cylinder, and the opening is provided with a corresponding sealed box cover; the vertical flotation cylinder is provided with a rotating shaft along the axis, a motor is arranged at the top of the sealed box cover, one end of the rotating shaft penetrates through the sealed box cover and is connected with an output shaft of the motor; the rotating shaft is internally hollow, and an opening is formed in the otherend of the rotating shaft. The flotation device is in ingenious in structure, manpower and flotation steps are reduced, by means of simultaneous injection of agents and gases into the vertical flotation cylinder, the mixing degree of a liquid medicine and a mineral aggregate solution is increased, and thus the mineral processing effect is improved.