1427 results about "Mineral processing" patented technology

User interface of a mineral processing equipment governs a mineral processing line having several units (crushers, screens) connected in series. The user interface comprises a display screen (14) and control buttons or keys and is connected through a data transmission link to sensors and actuators of the mineral processing equipment for receiving measurement data and sending control commands. The user interface is arranged to show within the display screen (14), by choice of the user

• • status of the mineral processing equipment in diagrammatic representation, or
  • a live camera view (21) of at least one point of the equipment.

The diagrammatic representations can be in form of a traffic lights (20) indicating the feeding speeds of the units.

The invention provides an iron tailing concrete which comprises the following ingredients of cement, mineral processing barren rocks and detritus, admixture, water and pumping aid for the concrete determined according to performances, and the ingredients of the concrete according to the weight percentages of the concrete are respectively 4-20 percent of cement, 0-35 percent of mineral processing barren rocks and detritus, 1-8 percent of admixture, 1.5-2.5 percent of pumping aid for the concrete based on the weight sum of the cement and the admixture, and the balance of water. The invention hasthe effects that the novel concrete adopts tailing ores and detritus and is applied to the production of the concrete for partially or completely replacing natural aggregate. The concrete can reducethe pollution to the environment from mineral processing barren rocks, decrease the production volume and the production energy consumption of natural ore materials, accord with three 'green' meaningssuggested by the world environment organization: saving resources and energy; no environmental damages, and more environment friendly; and also according with the strategy of sustainable development,thereby not only satisfying requirements of the contemporary people, but also not damaging the capacity of satisfying unborn requirements.

The invention relates to a method for comprehensively recycling valuable compositions of rare earth, iron, niobium and fluorite in rare-earth tailings, and belongs to the fields of comprehensive resource utilization technologies and mineral processing engineering. The rare earth, the iron, the niobium and the fluorite in the rare-earth tailings are efficiently and comprehensively recycled by the method including 'grinding the rare-earth tailings, performing low-intensity magnetic separation, performing high-intensity magnetic separation on weak-intensity magnetic tailings, performing flotation on high-intensity magnetic tailings to obtain fluorite in the high-intensity magnetic tailings, performing flotation separation on high-intensity magnetic concentrates to obtain rare earth, iron and niobium in the high-intensity magnetic concentrates, reducing and roasting base flows, performing low-intensity magnetic separation to obtain iron and niobium in the base flows and performing flotation on low-intensity magnetic tailings to obtain niobium in the low-intensity magnetic tailings according to characteristics that the rare-earth tailings contain the various valuable compositions. Compared with a method for singly recycling one or two valuable compositions, the method has the advantages that the purpose of comprehensively recycling the valuable compositions in the rare-earth tailings can be effectively achieved, secondary resources can be sufficiently utilized, and the method has excellent economical and social benefits.

The invention discloses a mineral processing method for recycling scheelite/molybdenum oxide ores from molybdenum sulfide flotation tailings. The mineral processing method comprises the following steps of: taking the molybdenum sulfide flotation tailings as raw materials and further levigating the raw materials; carrying out reselection and/or flotation and desliming on ore pulp which is levigated according to demands; adding a regulator, an auxiliary inhibitor, an inhibitor and a modified aliphatic acid collecting agent into the flotation tailing pulp; and recycling the scheelite/molybdenum oxide ores at room temperature so as to obtain scheelite/molybdenum oxide ore concentrates after roughing, scavenging and concentrating. The mineral processing method disclosed by the invention has the advantages of simple process flow, low production cost, resource saving, high product level and high recovery.

The invention belongs to the technical field of mineral engineering and provides a mineral processing technology for recycling fluorite from baotite, magnetite and tailing. In the tailing, mineral particle size of the fluorite is thin, iron-bearing mineral, rare-earth mineral, gangue mineral and the fluorite mineral are closely symbiotic and floatability of minerals such as rear earth, barite, apatite, calcite and dolomite is close to the fluorite mineral, so that separation of the fluorite mineral is difficult. According to the mineral processing technology for recycling the fluorite from the baotite, the magnetite and the tailing, priority desulfuration, rear earth flotation, ore grinding, iron selection through magnetic separation, fluorite selection through direct flotation and a reverse flotation sorting technology are performed on the magnetite and the tailing to enable pyrite, the rare earth, the iron-bearing mineral and the fluorite to be picked out in sections, efficient, high selective, easy-to-operate inhibitor and collecting agent combination is utilized in sorting of fluorite which is mostly performed monomer separation, so that fine fluorite of high grade and high recovery rate is obtained, a purpose of synthetically recycling valuable minerals is achieved, and effective separation of the fluorite mineral and the gangue mineral is achieved.

The invention provides an extraction device (1) for liquid suspensions and pulps and is designed for use in the field of mineral processing. The extraction device includes two adjacent upstream and downstream concentric chambers (2) and (3) defining a feedwell (4). The feedwell is centrally located upstream of a third chamber in the form of a thickening tank (5). All three chambers are in sequential unidirectional fluid flow relationship such that feed liquid flows firstly from chamber (2) to chamber (3) and then to the tank (5).

The present invention provides a copper furnace slag mineral processing process. According to the copper furnace slag mineral processing process, the slow cooling mode adopts centralized natural slow cooling for 12 h and spraying slow cooling for 60 h so as to prolong the slow cooling time of the slag ladle at a temperature of 1000-1250 DEG C, increase the opportunity of collision and growth of the copper matte particles, and easily achieve the crystallization development of the copper crystal, such that the recovery rate of the subsequent flotation operation is easily increased; the disseminated grain size of the copper sulfides in the furnace slag is fine, and for complete dissociation of the useful minerals, the stirring mill is adopted to carry out mineral grinding, ie., the crude concentrate is graded with a cyclone device, the setting sand after the grading is subjected to mineral grinding by adopting the stirring mill, the overflow after the grading is subjected to fine selection twice by adopting the flotation column, and the selected concentrate is directly adopted as the final concentrate, wherein the tailings being subjected to the one fine selection through the flotation column is sorted by adopting the flotation machine, and the tailings being subjected to the double fine selection through the flotation column cyclically returns. According to the present invention, the flotation machine, flotation column and vertical stirring mill combined process combining the machine, the column and the mill is adopted, such that the useful minerals with various particle sizes are easily recovered, and the metal recovery rate is efficiently increased.

The invention discloses a preenrichment-three segment suspension roasting-magnetic separation treatment method of complex refractory iron ores, and belongs to the technical field of mineral processing. The method comprises the following steps: 1, levigating the complex refractory iron ores, carrying out weak magnetic separation, and carrying out strong magnetic separation on mine tailings; 2, putting concentrate obtained after strong magnetic separation in a suspension roasting furnace, and heating to 450-800DEG C in a suspension state in order to carry out pre-oxidation roasting; 3, introducing nitrogen to displace air, and introducing a reducing gas to carry out reduction in a suspension loose state; 4, introducing air when the temperature decreases to 250-400DEG C in order to oxidize, taking out the obtained material when the temperature decreases to below 100DEG C, and carrying out ore milling; and 5, carrying out third segment magnetic separation, and mixing concentrate obtained after three segment magnetic separation with concrete obtained after the weak magnetic separation to obtain finial concentrate. The method has the advantages of simple process, improvement of the recovery rate of the complex refractory iron ores, strong adaptability, safe and reliable process, uniform and stable product quality, energy saving and consumption reduction.

The invention discloses an ore coarse crushing device for mineral processing, which comprises a bottom plate, a left vertical plate and a right vertical plate are vertically and fixedly installed on the bottom plate, a limit slideway is vertically arranged on the top plate, and the vertical limit slideway is vertically The sliding type is equipped with a sliding rod, and a transmission rod is connected between the sliding rod and the runner. The piston head is connected with a piston rod extending to the left to the outside of the water-drawing sleeve. The left end of the piston rod is fixed with a push plate. There is a nozzle connected to the water-drawing sleeve through the liquid outlet pipe; the structure of the invention is ingenious and the design is reasonable, and the ore in the crushing tank is broken through the up and down reciprocating motion of the impact block, and the left and right reciprocating motion of the crushing tank makes the ore evenly spread on the ground. The bottom of the crushing tank makes the ore get a comprehensive impact crushing effect and improves the crushing efficiency of the ore; the nozzle sprays water intermittently into the crushing tank to reduce the dust generated during the crushing process of the ore, avoiding the spread of dust, and more Environmental friendly.

An inhibition gravity treatment separation method for lead-zinc, lead-zinc-copper or lead-copper floatation collective concentrates pertains to the mineral processing technical field. In gravity treatment separation of the collective concentrates, lead sulphide inhibitor is added. The method includes the following procedures: after lead sulphide inhibitor is added, the collective concentrate is sent to a table concentrator again for gravity treatment separation; after the gravity treatment separation in the table concentrator, the concentrate belt includes lead concentrate and sub-concentrate belt and the tailing zone includes sub-concentrate and gangue containing lead-zinc, lead-zinc-copper or lead-copper; the obtained sub-concentrate and the gangue undergo the gravity treatment separation in the table concentrator again or for a plurality of times, thus finally obtaining lead concentrate, zinc concentrate, zinc-copper concentrate or copper concentrate. Due to the existence of lead sulphide inhibitor, the floatability of the lead sulphide is completely inhibited so as to highlight the high specific gravity feature of the lead sulphide; therefore, the lead sulphide is easily separated from a plurality of metallic collective concentrates by the gravity treatment separation in the table concentrator. The content of the metal elements in the obtained concentrates is mutually low and the major metal concentrate and the attaching metal concentrate can both satisfy the metallurgical standards and requirements, thus having extremely remarkable economic benefits.

The invention relates to a method of synthesis use of asbestos gangue, belonging to the mineral processing and environment protection field. The asbestos gangue powder and hydrochloric acid solution are conducted soaking reaction and separate solid and liquid component. The filtrate is added with oxidizer to oxidize Fe<2+> and added with alkali solution precipitate iron, aluminum and calcium filtrate components in the filter solution. Deposit is removed by filter and alkali is added for reaction. Right amount of particle separating dose is added at the same time. Magnesium hydroxide of nanometer grade and sheet shape grain shape is obtained. Reacted residue of asbestos gangue powder and hydrochloric acid and sodium hydroxide or sodium carbonate react in heating situation. The reacted product is filtered and the filter solution is added with little sodium sulfate and water to adjust thickness. Surface modifier or particle separating dose is added and acid is used to settle out. The settled out product is aged, filtered, washed and dried to get the round-shape nanometer grade white carbon soot. The impurity of the filter is removed by acid to get precipitation. The precipitation passes through drying and calcinations to get iron oxide, alumina and calcium oxide mixture (product of removing impurity).

The invention provides a method for roughing and tailings-discarding of fine rutile ore by multi-stage floatation, relating to the technique for roughing and tailings-discarding of fine rutile ore by multi-stage floatation and belonging to the technical field of mineral processing engineering. The method of the invention comprises the following steps: firstly, conducting the reverse floatation of rutile by using sodium oleate as a collector according to the characteristics that aluminum sulfate can inhibit the rutile and activate silicate minerals in varying degrees, so as to effectively deslime in the process of reverse floatation; and then, conducting the forward floatation of rutile by using lead nitrate (or lead acetate) as an activator of rutile and using sodium alkyl hydroxamate and benzyl arsonic acid (or styryl phosphonic acid) as a combined collector according to the characteristic that gangue minerals can be inhibited on a combined basis under the synergistic action of sodium fluorosilicate, carboxymethylcellulose and the residual aluminum sulfate in the ore pulp, briefly, the method of the invention can realize the roughing and tailings-discarding of fine rutile by the multi-stage floatation comprising the following steps: firstly, conducting the reverse floatation by inhibiting the rutile; and then, conducting the forward floatation by activating the rutile. The method of the invention has the advantages that the enrichment ratio and recovery rate of rutile are high, the tailings of rutile ore can be discarded thoroughly and the mineral processing cost of rutile can be greatly reduced.

The invention relates to the technical field of mineral processing, in particular to a production method for preferably selecting lepidolite from tantalum and niobium ores. The technological process comprises crushing, ore grinding, desliming and floation, the flotation concentrate is filtered by a high-frequency vibrating screen to obtain lepidolite concentrate and secondary lepidolite concentrate, the flotation tailings are re-elected to obtain tantalum and niobium concentrate, and the re-elected tailings are magnetically separated to obtain feldspar concentrate. The comprehensive recovery rate of lepidolite in the tantalum and niobium ores is greater than 70%, so that the economic efficiency of tantalum and niobium ores is greatly improved. The production method provided by the invention is particularly suitable for preferably selecting the lepidolite from the low-grade tantalum and niobium ores.

A mineral processing facility is provided that includes a cogen plant to provide electrical energy and waste heat to the facility and an electrochemical acid generation plant to generate, from a salt, a mineral acid for use in recovering valuable metals.

The invention relates to a combined mineral processing technology of low-grade laterite type weathering titanium placers and belongs to the technical field of mineral processing. The combined mineral processing technology includes subjecting raw materials with the titanium dioxide content of below 5% to low-intensity magnetic-high-intensity magnetic pre-treatment technologies, then gravity separation-regrinding-gravity separation, gravity separation-regrinding-flotation processing and regrinding-flotation processing. According to the combined mineral processing technology of the low-grade laterite type weathering titanium placers, by means of the low-intensity magnetic-high-intensity magnetic pre-treatment technologies, a large number of slurries which are rich in kaolin minerals can be cast, technological procedures can be simplified, obtained rough titanium concentrates have few slurries, and follow-up treatment can be easily performed, for example, the interference of the slurries is avoided when technologies such as flotation and tabling gravity separation are performed; the grade and the recovery rate of the obtained titanium concentrates are high, and high intensity magnetic separation is beneficial to recovery of fine-particle grade titanium particles; and by means of the technologies of gravity separation-regrinding-gravity separation, gravity separation-regrinding-flotation processing and regrinding-flotation processing, the recovery rate of titanium is high, simultaneously, the content of iron in mineral samples is increased, and additional values of products are improved.

The invention relates to a method for refining iron and removing phosphorus from complex refractory high-phosphorus iron ore, in particular to a method for sorting high-phosphorus iron ore by combining microwave reduction roasting and low intensity magnetic separation, and belongs to the technical field of mineral processing, particularly iron ore beneficiation. The method comprises the following steps: crushing refractory high-phosphorus iron ore used as raw material into granules with granularity of less than 2mm; mixing the crushed raw ore with a fluxing agent and a reducing agent in a certain proportion; transferring the obtained mixed material into a microwave reaction furnace for reduction roasting; and carrying out water-quenching, cooling, ball-milling and wet-magnetic-separating on the obtained roasted ore to finally obtain iron ore concentrate. In the method, the ore is reduced by utilizing a microwave roasting technology, wherein microwave reduction roasting time is short, and the temperature of the ore is raised quickly; and meanwhile the fluxing agent is added so as to promote gangue softening and improve refractory ore structure together with microwave roasting reaction. By utilizing the method for sorting the high-phosphorus iron ore, the iron ore concentrate with grade of more than 58.39% can be obtained, and phosphorus removal rate reaches over 70.44%, thus a new technique is provided for sorting the high-phosphorus iron ore.

The invention relates to a method for separating zinc and indium and iron from indium-enriched high-iron high-zinc calcine through reduction-magnetic separation, belonging to the technical field of mineral processing. The invention is characterized in that the method adopts the technical means that mineral dressing is combined with smelting and performs smelting firstly and mineral dressing secondly; and the method is as follows: the waste heat of the indium-enriched high-iron zinc calcine obtained through fluidized roasting is utilized, the indium-enriched high-iron zinc calcine is introduced to perform low-temperature weak reduction treatment at below 570 DEG C and ensure that zinc ferrite is decomposed and reduced to ZnO, Fe3O4 and iron, the reduced calcine is levigated to prepare slurry, and zinc and indium and iron is separated through wet-type magnetic separation to obtain iron ore concentrates and indium-enriched zinc- enriched ore concentrates. The method has low energy consumption and low dosage of a reducing agent, is simple in operation, easy in control and high in metal recovery rate. Therefore, the indium embedded and distributed in zinc ferrite can be released, the loss caused by the high temperature volatilization of indium can be avoided, and the zinc and indium and iron of the indium-enriched high-iron high-zinc calcine can be separated in an ore dressing manner before leaching.

The invention relates to a mineral processing technology by utilizing the grade difference of potassium feldspar. The mineral processing technology comprises the following steps that (1), potassium feldspar raw ore is mined and sorted in a separated mode according to the three classes of low-grade potassium feldspar ore, medium-grade potassium feldspar ore and high-grade potassium feldspar ore; (2), the mineral processing processes of crushing, washing, grinding for grading, desliming, and magnetic separation for deep iron removal are carried out on the low-grade potassium feldspar ore; (3), the mineral processing processes of crushing, washing, grinding for grading, desliming, flotation for mica removal and iron removal, flotation for separating feldspar from quartz, and magnetic separation for deep iron removal are carried out on the medium-grade potassium feldspar ore; (4), the mineral processing processes of crushing, washing, grinding for grading, desliming, magnetic separation for deep iron removal, wet superfine grinding and screening are carried out on the high-grade potassium feldspar ore. The different mineral processing technical schemes are adopted for the potassium feldspar ore of different grades, and the purposes of being free of environmental pollution, simplifying the production processes and efficiently developing and utilizing resources are achieved.

The invention discloses an in-process circular and comprehensive recovery technology for mineral processing wastewater of tin-lead-zinc polymetallic sulphide ores. The technology includes primary treatment and secondary treatment, wherein the primary treatment is to coagulate and precipitate, comprising the step of adding a coagulant to remove suspended solid and metal ion, wherein some organic pollutants are removed at the same time; the secondary treatment is to carry out an adsorption method to remove flotation agent in the wastewater so as to further reduce the CODCr (Chemical Oxygen Demand) and foamability of the wastewater; and all water generated in the secondary treatment is recycled. The technology has the advantages of being simple in equipment, high in processing efficiency, high in adaptability, less in occupied area, and few in resulting sludge, and has higher effect of processing the mineral processing wastewater of tin-lead-zinc polymetallic sulphide ores; the polymeric ferric sulfate (PFS) and polyacrylamide (PAM) are selected and used as the compound coagulant to remove the pollutants such as the suspended solid and the metal ion during precipitating and removing the pollutants in the wastewater; and compared with single inorganic coagulant, the compound coagulant of the PFS and the PAM is low in dosage, good in effect, low in cost, and safe and nontoxic, and has no secondary pollution.

The invention discloses a flotation separation inhibitor and separation method of galena, pyrite and sphalerite, and belongs to the technical field of mineral processing. The method includes adopting raw ores of sulfide lead-zinc mine as raw material, and adding SDSN (dimethyl dithiocarbamate : 2-(methylthio)ethylamine = 1-3:1)to serve as inhibitor of the pyrite and the sphalerite so as to perform lead and zinc sulphur flotation separation after the raw ores are grinded. Compared with an existing lead and zinc sulphur separation technology, the composite inhibitor SDSN has the advantages that selectivities of the pyrite and the sphalerite are high, inhibiting capability is high, usage is fewer, and adding is facilitated. The the pyrite and the sphalerite can be inhibited well, efficient separation of the galena and the zinc sulphur is implemented, the problems that according to the traditional lime or cyanide method, the recovery rate of associated gold, silver and other precious metals in the lead-zinc sulfide mine is low and ecological environment is seriously damaged are overcome, and an efficient and environment-friendly flotation separation method is provided for complex sulfide lead-zinc mine separation.

The invention discloses a mineral processing technology for comprehensively recycling iron phosphorus from low-grade high phosphorus vanadium titanium magnetite. The low-grade high phosphorus vanadium titanium magnetite is subjected to stage grinding and low intensity magnetic separation processes to obtain iron ore concentrate and magnetic separation tailings; the magnetic separation tailings uses low temperature flotation to recycle phosphorus after concentration, wherein the low temperature flotation is as follow: adding a slurry pH adjusting agent, an inhibitor and a collecting agent to the slurry of magnetic separation tailings, adjusting the pH of the slurry to 9-10, and performing flotation under 15-20 DEG C. The technology provided by the invention puts forward a mineral processing technology for comprehensively recycling iron phosphorus aiming at the low-grade high phosphorus vanadium titanium magnetite, which firstly adopts the low intensity magnetic separation method to recycle iron from ores and then adopts the low temperature flotation method to recycle phosphorus from tailings, thus realizing efficient utilization of such kind of mineral resources and increasing the economic benefits of concentrators. The low temperature flotation of the technology can reduce the subsequent costs of processing phosphate ores, improve the benefit of the comprehensive utilization of resources, reduce the production cost and achieve low cost and efficient recycling of phosphorus.