131 results about "Ore sorting" patented technology

The invention provides an eclogitic rutile ore sorting method. The method comprises the following steps of: floating garnet after the eclogitic rutile ore is grinded so as to obtain garnet concentrate; grading the garnet tailing; performing collective floatation on garnet and rutile mixed rough concentrate to separate omphacite so as to obtain omphacite concentrate; separating the mixed rough concentrate to obtain garnet concentrate and rutile concentrate; and magnetically separating the rutile rough concentrate to obtain rutile concentrate. Most garnet is preferentially floated, so the method ensures great reduction of the using amount of reagents for the subsequent rutile sorting operation and reduction of rutile sorting cost, realizes the separation of the rutile, the garnet and the omphacite by adopting floatation and magnetic separation by controlling the pH value of the ore pulp, basically realizes no tailing emission, reduces environmental pollution, has the advantages of low cost and easy implementation, and can remarkably improve the comprehensive reclaiming level of the eclogitic rutile ore.

The invention provides an ore dressing method for lead-zinc-silver poly-metallic ores. Lead-silver concentrates and zinc concentrates are finally obtained through the steps of raw ore grinding, lead fast roughing, lead slow roughing, lead scavenging, lead fast concentration, lead slow concentration, zinc fast roughing, zinc slow roughing, zinc scavenging, zinc fast concentration and zinc slow concentration. The lead-zinc-silver poly-metallic ores sorted by the ore dressing method provided by the invention are good in sorting index and high in separation efficiency; the ore dressing method is a lead-zinc-silver ore dressing method which is stable, efficient, strong in adaptive capacity, good in sorting effect, high in comprehensive recovery index and low in production cost and is suitable for popularization and application.

The invention discloses an intelligent sorting method for lead-zinc massive ore. The method comprises the following steps: (1) coarse crushing and primary screening, specifically, crushing the lead-zinc raw ore by a coarse crushing crusher, and then washing, screening and grading the crushed lead-zinc raw ore by a double-layer vibrating screen; (2) medium crushing, specifically, conveying the primarily screened large-particle-size ore to a medium crushing crusher, and washing and screening the crushed ore through the double-layer vibrating screen in the step (1); (3) intelligent sorting and waste throwing, specifically, conveying the primarily screened medium-particle-size ore to an X-ray intelligent ore sorting machine for intelligently sorting and waste throwing to obtain tailings and waste rocks; and (4) fine crushing and fine screening, specifically, conveying the intelligently sorted fine ore to a fine crushing crusher, and feeding the crushed fine ore into a single-layer vibrating screen for fine screening. According to the intelligent sorting method for the lead-zinc massive ore, the lead-zinc massive ore is coarsely crushed at first, and then the gangue mineral dissociatedin the lead-zinc massive ore is directly thrown out by the X-ray intelligent ore sorting machine, so that the ore dressing cost is reduced, the ore dressing grade and the processing capacity of a dressing plant are improved, the tailing yield is reduced, and the pressure of insufficient storage capacity of a tailing pond is relieved.

The present invention provides an X-ray radiation pre-selecting enrichment method for copper sulfide ores with a low grade, which belongs to the technical field of ore processing. The method includes steps as follows: 1) crushing original ores of the copper sulfide ores with a low grade into particles with a size of no more than 200 mm; 2) sieving the crushed materials to obtain the copper sulfide feeding through a sieving machine with 20-50 mm sieve mesh; 3) setting a grade threshold within 0.15-0.30 for sorting ore concentrates and tailings in a control system of an X-ray sorting machine, putting the copper sulfide ore feeding into the X-ray sorting machine, and sorting the copper sulfide ore feeding to obtain the ore concentrates and the tailings of the copper sulfide ore. The method has high mechanization degree and automation degree, reasonable technique, stable operation, and low ore sorting cost, which is easy to realize the industrialization of copper ores with a low grade.

The invention provides a photoelectric beneficiation sorting process for phosphorite. The process comprises the following steps of screening phosphorite raw ore; conveying the ore obtained through screening into a photoelectric sorting machine through a belt conveyor, conducting X-ray ore radioscopy and substance recognition , recognizing each piece of ore through X-rays, collecting data through adetector, and recognizing and distinguishing the ore and waste rock through an intelligent algorithm; and after recognition by the photoelectric sorting machine is completed, a high-speed gas exhaustgun is used for accurate striking to separate concentrate from tailings , and then photoelectric beneficiation of the phosphorite can be completed. In the process of screening the phosphorite raw ore, the raw ore is crushed and vibrated to obtain ore with the particle size larger than 50 mm, then the ore is crushed again, and obtained ore with the particle size being 20-50 mm is conveyed into thephotoelectric sorting machine to be subjected to photoelectric sorting. At present, the process is only targeted at medium-phosphorus-layer high-magnesium phosphorite, the sorting effect is remarkable, and when the grade of sorted raw ore is 17.5%, the yield can reach 40% or above, and the recovery rate is high.

The invention belongs to the field of laser spectroscopy detection and ore sorting, and discloses a waste ore sorting method and device based on the laser induced breakdown spectroscopy (LIBS). The device comprises an ore pulverizer, a filter, a conveying device, a sample shape inspection system, an LIBS detection system, a mechanical sorting and ore collecting system and a measurement and control system. The pulverizer and the filter are used for smashing massive waste ore into small ore blocks of the similar sizes and shapes. The sample shape inspection system is used for obtaining the average heights and boundary dimensions of samples, and further controlling the focusing distance and scanning range of the LIBS detection system. The LIBS detection system is used for detecting material compositions of the ore and determining the ore grade. The mechanical sorting system conveys the ore and the waste ore to different ore collecting tanks separately according to detection results. The measurement and control system is used for performing unified coordination control over all functional units of the device.

The invention discloses a molybdenum-tungsten oxide pre-finishing scavenging technology. The technology comprises the steps that firstly, breaking, grinding, grading and desliming are conducted on rawore; then sulfide ore sorting is conducted, and primary roughing and secondary roughing are conducted on tailings obtained after sorting is completed through a flotation machine; primary preconcentration is conducted on roughing concentrate obtained through roughing; secondary preconcentration is conducted on concentrate obtained through primary preconcentration; concentrate obtained through secondary preconcentration is sent into a concentrator for concentration treatment; and the treatment process of molybdenum-tungsten oxide pre-finishing scavenging is completed. By means of the molybdenum-tungsten oxide pre-finishing scavenging technology, the grade and recovery rate of the concentrate can be obviously improved, so that the recovery rate of the molybdenum-tungsten oxide rough concentrate is high; and the outstanding effect is achieved especially for molybdenum-tungsten oxide with the high mud content and the low disseminated grain size, the grade and recovery rate of the concentrate are very high, and the high economic value is achieved.

There is provided a method and an apparatus for treating return ores using plasma, capable of treating sintered return ores generated in a sintering process in a steel maker or return ores (iron ores) employed in other ironmaking process such as FINEX. The method of treating return ores using plasma includes: providing return ores sorted out by a sorting process; and bonding the return ores by fusing and agglomerating the return ores using plasma. Also, an apparatus for treating return ores using plasma includes a plasma heating device used to fuse and agglomerate sorted return ores. The return ores of a predetermined grain size are fusion-bonded and agglomerated using a flame of a plasma heating device. Particularly, the return ores can be treated in a massive amount to enhance productivity of a fusion-bonding process of the return ores. Furthermore, a great amount of sintered return ores generated in the sintering process can be subjected to a fewer number of re-treatment processes.

The invention relates to the field of ore separation production equipment, and particularly relates to an ore sorting device. The ore sorting device comprises a hopper, a first sorting mechanism, a smasher, a second sorting mechanism, a storing box, a rack and a conveyor belt. The hopper is fixedly installed on the rack. The bottom of the hopper is connected to the first sorting mechanism. The first sorting mechanism is connected to the storing box through a conveying pipeline. The first sorting mechanism is also connected to the smasher. The smasher is connected to the second sorting mechanism through a conveying pipeline. The second sorting mechanism is connected to the storing box through a conveying pipeline. The second sorting mechanism is also provided with a material outlet. The material outlet leads to the conveyor belt. The conveyor belt is communicated with the top of the hopper. The beneficial effects of the ore sorting device are that: the structure of the device is simple, operation is convenient, ore sorting is achieved by utilization of the simple device and secondary smashing processing of the ore is achieved at the same time.

The invention relates to a mixed ore high pressure roll milling dual-media magnetic separation-hematite ore sorting process. The process is characterized by comprising the following steps that raw ore is subject to coarse breaking and medium breaking two-section breaking and screening until the content of products with the granularity reaching -25 mm being 90% or above, then the material is fed into a high pressure roll milling-wind hierarchy system, and the content of products with the granularity being -200 meshes is 60%-65%; and the material is fed into a first-section low-intensity magnetic separator and a first-section high intensity magnetic separator for sorting, first-section low intensity magnetic separation concentrate and first-section high intensity magnetic ore are fed into a tower mill to be milled until the content of products with the granularity being -325 meshes is 90% or above, the products are fed into a second-section low-intensity magnetic separator, a third-section low-intensity magnetic separator, a first-section magnetic vibrating concentrator and an anion reverse flotation operation, concentrate with the grade being 67%-67.5% is obtained, and first-section high intensity magnetic separation tailing, second-section low intensity magnetic separation tailing, third-section low intensity magnetic separation tailing, second-section high intensity magnetic separation tailing and first-section magnetic vibrating concentrator tailing are combined into final tailing. According to the mixed ore high pressure roll milling dual-media magnetic-hematite ore grading process, fine breaking operation and two-section ore grinding operation are reduced, the fine screening operation is eliminated, the flow structure is simplified, and dual-media and short-flow grading is achieved, and the mineral separation cost is reduced.

The invention relates to the technical field of beneficiation, and provides a pre-separation and waste-discarding beneficiation method for low-grade copper sulphide ores. According to the method, low-grade copper sulfide ores are screened into -60+10 mm, -10+6 mm, -6+2 mm, -2+0.15 mm and -0.15 mm ores through crushing and repeated screening, the -0.15 mm ores are regarded as primary slime and aredirectly used as qualified ores, the -2+0.15 mm, -6+2 mm and -10+6 mm ores are subjected to pre-separation and waste discarding through jigging, and the -60+10 mm ores are subjected to pre-separationand waste discarding through intelligent ray ore separation, and the copper grade of the finally obtained qualified ores is 0.27% or above. According to the provided method, pre-separation of the copper sulphide ore and a large amount of barren rock is realized, the copper grade of the selected ores is improved, the amount of ores entering a concentrating mill for grinding and separation is reduced, operation is stable, the cost is low and industrial production is realized easy.

The invention discloses a high-efficiency spodumene beneficiation method which comprises the steps of screening and grading a finely ground spodumene ore pulp, feeding spodumene ores with +0.104 mm particle size into a centrifugal separator for reselecting, and separating large-particle monomer separated spodumene mineral from gangue mineral according to the density difference; and adding sodium carbonate and sodium hydroxide into the -0.104mmparticlesize spodumene ore pulp, stirring for a long time, adding lignosulfonate as a dispersing agent and a gangue inhibitor, adopting modified oleic acid as a collecting agent for flotation, so that high-efficiency sorting of the spodumene mineral can be realized. The high-efficiency spodumene beneficiation method provided by the invention adopts the combined process comprising thick-thin ore separation, and reselection-flotation, the characteristic that the requirements of different beneficiation methods for the optimal particle size of the processed ore are different is fully utilized, so that the ore grinding cost is reduced, and the defect that the spodumene thick particles are difficult to float is overcome; and the method has the advantages of the simple process, low production cost, the good spodumene sorting effect and the like.

The invention discloses a system and method for optimizing multiple production indexes in the sorting process of raw ore based on man-machine interaction, and belongs to the technical field of ore-dressing production processes. The system comprises a data acquisition module, a parameter setting and modifying unit, an optimization algorithm module library, an optimization model module, an optimization result output unit and a multi-production index optimization system management unit. The method includes the steps that the optimization algorithm module library is searched for a needed optimization algorithm first according to an optimization model; if the algorithm is not found out, the needed optimization algorithm is packaged into a new optimization algorithm module, and if the algorithm is found out, a needed parameter is acquired; an optimization scheme is established; the optimization scheme is operated; a set of production index optimization values are acquired, and meanwhile corresponding raw ore sorting configuration quantity optimal values are issued to an under layer ore dressing production system; if a production index actual value is placed within the production index target value range, the optimization scheme is operated continuously, and if not, the parameter acquiring step is executed again. By the adoption of the system and method, the purposes for saving energy, reducing consumption, lowering production cost and improving economic benefits can be achieved.

The invention discloses dense medium ore sorting equipment, and belongs to the field of beneficiation equipment. The dense medium ore sorting equipment comprises a sorting cylinder body (5), a movablescreen plate (1), a fixed screen plate (2) and a lifting device (3), the fixed screen plate (2) is arranged at a discharging port of the sorting cylinder body (5), the movable screen plate (1) is arranged in the sorting cylinder body (5), moreover, the lifting device (3) can drive the movable screen plate (1) to move up and down, dense medium chain strings (4) are arranged at the lower end of themovable screen plate (1) at intervals, one ends of steel ropes (43) of the dense medium chain strings (4) are connected with the end surface of the movable screen plate (1), and dense medium balls (41) are arranged on the steel ropes (43) in a penetrating and sleeving mode. According to the dense medium ore sorting equipment, the principle that light minerals and heavy minerals generate floatingand sinking and jigging ore dressing phenomena in a heavy suspension liquid is adopted, the lifting device (3) drives the dense medium chain strings (4) to do vertical movement so as to realize transverse uniform distribution of dense media at the sorting cylinder body (5) or in the cylinder body, then the dense media can not precipitate in the up-and-down movement, and the purpose of screening ores is realized.

The invention discloses a coal gangue separation method based on deep vision, and relates to the technical field of robot vision. The method comprises the steps of taking ore color images of an ore separation production line as input, utilizing an ore segmentation convolutional neural network for conducting segmentation to obtain an ore area segmentation result, conducting ore area cutting on theore color images according to the ore segmentation result to obtain a plurality of ore area slices, then utilizing an ore classification convolutional neural network to output coal briquettes or coalgangue, conducting image analysis on the ore area slices to determine ore information, and finally automatically separating the coal briquettes and the coal gangue. By means of the method, rapid detection and precise recognition can be achieved, by estimating the volume class and relative position of ore, accurate guide information is provided for automatic separation of the coal gangue, and the separation efficiency is high. The two convolutional neural networks are customized special for an ore separation scene, and the coal gangue separation method has the advantages of being small in mass,high in real-time performance, high in detection precision and the like.

The invention relates to an underground mining process without building a tailing pond. The underground mining process comprises the following steps: counting total tailing quantity data generated ina mining area and residual tailing quantity data after a goaf is filled; planning and selecting a gravel aggregate material field within a preset range of the mining area, and the formed empty area meeting the storage requirement for the remaining tailing amount; mining ores and waste rocks in the mining area, and sorting the ores to generate concentrates and tailings; crushing waste rocks produced by mining and waste rocks produced by sorting, and screening the crushed materials according to a preset size to form gravel aggregates and screening residues; and filling the tailings or the screened residues into the goaf. After the ores and waste rocks are mined, the goaf for containing tailings is formed, and the size of the goaf meets the storage requirements of tailings generated by ore sorting and needed cementing materials. An enough empty area is formed to fill tailings generated after mineral separation into a well, the tailing pond is not arranged on the ground surface, tailing-free mines are truly achieved, sand aggregate can be sold, and environmental protection and national economy construction are facilitated.

The invention discloses a lead zinc ore identification method. The identification method comprises the following steps: acquiring an x-ray image of to-be-selected ore through a radiation imaging technology; according to the x-ray image, determining an image attribute corresponding to each stone to be selected; and selecting the to-be-selected stones with the image attribute matched with the image attribute of lead zinc ore as the lead zinc ore. The invention further discloses terminal equipment and a computer readable storage medium, and the effect of improving the lead zinc ore sorting efficiency is achieved.

The invention provides a method for continuously and dynamically removing iron from magnetic mineral ores. The invention belongs to a method for ore sorting, in particular to a method for continuously and dynamically removing iron from the magnetic mineral ore. The method comprises the following steps that: the lower part of a discharge end of an ore main conveying belt is provided with a segment of auxiliary conveying belt, and ore block on the front segment of the auxiliary conveying belt is paved by vibration, so that both of the ore block and the iron which is possibly mixed in the ore block can be directly contacted with the surface of the auxiliary conveying belt; and the lower part of the back segment of the discharge end of the auxiliary conveying belt is provided with a magnet, so that the ores can be discharged from the end part, and the iron can be conveyed to a position away from the magnet along with the auxiliary conveying belt, and then discharged. The equipment has a simple structure, and the dynamical and continuous removal of the iron from the ores containing the magnetic minerals can be easily achieved in lower cost under a condition of no ores mixed in the sorted iron.

The invention discloses an ore automatic identification and coarse sorting system based on deep learning, and the system comprises: a model construction module which is used for constructing a deep learning model of ore automatic identification and coarse sorting; a model training module which is used for forming a training set and a test set according to the pictures of the selected ore mud blockmixture to train a deep learning model for automatic ore identification and coarse sorting; a recognition module which is used for inputting the shot ore and mud block mixture pictures on the crawlerbelt into a trained ore automatic recognition and rough sorting deep learning model to obtain a real-time recognition result; and a sorting module which is used for controlling the crawler belt to feed the batch of ores into the next procedure according to the recognition result of the recognition module if the mud content after recognition is smaller than a set threshold value, otherwise, controlling the high-pressure water gun to perform fixed-point flushing on the recognized mud blocks, and then feeding the mud blocks into the next procedure. According to the invention, deep learning is creatively introduced into the ore sorting process, and full automation of ore coarse sorting is achieved.

The invention relates to the technical field of sorting mechanical equipment, in particular to an intelligent ore sorting machine. The machine adopts a three-dimensional laser imaging system to reconstruct a three-dimensional structure of an ore, shape information of the ore can be obtained, a first detection mechanism can be combined with the shape of the ore to accurately identify the ore, the ore containing thin mineral substances cannot be missed, the detection precision of the ore is improved, the yield of the qualified ore is increased, quartz with wide commercial values in a waste rockcan be further recognized and separated from a metamorphic rock in combination with a second detection mechanism, the utilization rate of the waste rock is increased, the overall resource utilizationrate of a raw ore is increased, the complexity of waste rock treatment in the later period is reduced, and benefits are increased for enterprises.

The invention relates to the technical field of ore dressing equipment, in particular to a multifunctional ore dressing machine. The multifunctional ore dressing machine comprises a base, an ore washing mechanism is arranged on the top surface of the base, and the top surface of the base is also provided with four supporting rods annularly at equal intervals. The multifunctional ore dressing machine is provided with a plurality of vibrating separation mechanisms sequentially from top to bottom, vibrating motors drive sieving boxes to vibrate, ores move from top to bottom, so each sieving box can sieve the ores, a mode that traditional equipment only carries out single sieving is changed, the quality of ore separation is effectively improved, the quality of subsequently processed ore products is beneficially improved, and the separation efficiency is improved. In addition, the ore washing mechanism is arranged for further cleaning of the ores after sieving, the quality of the ores is improved, and the problem of low efficiency of a sieving function of existing sieving and ore dressing equipment is solved.

The invention discloses an oil production ore filtering device which structurally comprises a slag discharging pipe, a screening plate sliding sand filter, an oil conveying pipe, a pressure gauge, a draining pipe, a back flushing rotary filtering tank and a punching horizontal tank. By means of the oil production ore filtering device, the screening plate sliding sand filter and the oil conveying pipe are matched, an inclined frame connecting pipe in an oil conveying pipe insertion cylinder groove shell is used for conveying oil to an extracting pipeline so that in the process that a net filteris matched with the pipeline for conveying, a sliding clamp filtering brush plate and a piston cylinder screen frame can form a gradient staggered groove fluid layered machining and filtering effect,in addition, ore sorting operation is formed on a piston cylinder screen frame in the later period, heavy stone and fine sand refining is facilitated, the waste reutilizing value is improved, it is ensured that sand and stone feedback bagging is used in cooperation with building construction, oil can be subjected to purification machining after production, dredging of later-period pipeline conveying is facilitated, after solid stuffing is avoided in advance, uniform liquid of an oil film can be improved, and transmission of fluid saturation is facilitated.