Patents
Literature
Patsnap Eureka AI that helps you search prior art, draft patents, and assess FTO risks, powered by patent and scientific literature data.

62results about "Pneumatic tables" patented technology

Preparation process of acellular matrix particles

The invention discloses a preparation process of acellular matrix particles, and relates to the technical field of biomedical material processing. The invention provides an acellular matrix particle preparation process based on a biological enzyme method and a fluidized bed principle. The acellular matrix particle preparation process comprises the following steps: alkali treatment, acellular dehydration, grinding and screening. The step of screening is based on the fluidized bed screening principle, the acellular matrix particles are input into a fluidized bed layer, the particles suspended on the fluidized bed layer can settle rapidly under the action of fluid, and the particles with small particle sizes can rise along with the fluid and enter a discharging system. The preparation process can realize accurate screening of acellular matrix particles, significantly reduce the particle size fluctuation range, can directionally prepare particles in a specific particle size interval, and has the characteristics of high efficiency, continuous production, simple operation and strong applicability.
Owner:深圳市迈捷生命科学有限公司

Coal vibration airflow collaborative sorting method and system based on multi-target collaborative control

The invention relates to the technical field of coal sorting, and discloses a coal vibration airflow collaborative sorting method and system based on multi-target collaborative control, and the system comprises a data acquisition unit, a data processing unit and an execution adjustment unit; wherein the data acquisition unit is used for synchronously acquiring multi-dimensional operation data; the data processing unit performs fusion operation on the multi-dimensional operation data to obtain estimated values of bed stratification degree and real-time cutting density, and performs rolling prediction based on a prediction model to obtain an optimization control instruction; the execution adjustment unit receives the optimization control instruction to adjust the apparent wind speed distribution of each subarea to stabilize bed layering, dynamically adjusts the vibration frequency and amplitude to maintain particle migration balance, corrects the longitudinal and transverse inclination angles to suppress backmixing, and adjusts the discharge boundary. The problems of separation boundary drifting and backmixing are effectively avoided, and the stability of clean coal ash content and cutting density is ensured.
Owner:CHINA UNIV OF MINING & TECH

Separator tables, deck mounting systems, deck assemblies, and related methods

A separator table includes a deck assembly including an upper deck surface that is inclined in a first direction falling within a first vertical plane and in a second direction falling within a second vertical plane that is orthogonal to the first vertical plane. The separator table also includes a monitoring system disposed at a discharge of the deck assembly and including a flow sensor and a controller operably coupled to the monitoring system. The controller receives flow data from the flow sensor of the monitoring system; analyzes the flow data to determine if a product is flowing through the discharge at a predetermined flow rate, and responsive to a determination that the product is not flowing through the discharge at the predetermined flow rate, adjusts at least one of the first direction or the second direction in which the upper deck surface is inclined.
Owner:CIMBRIA HEID GES

Multi-stage two-stream separator for mining

To provide a multi-stage two-stream separator for mining, which is used in the process of obtaining raw materials from ore required for refining or other industries. The system includes a feed assembly (1), a screening assembly (2), a dust removal assembly (3), and a frame (4). The feed assembly is mounted on the top of the frame, and the screening assembly is mounted inside the frame. The screening assembly includes a stepped, multi-stage screening bed with at least two stages. The device provides a heavy component collection port on the lower side of the screening bed, allowing the heavy components to be continuously or intermittently discharged through the discharge assembly, reducing the amount of heavy components entering the next stage and fully utilizing the screening capacity of the screening bed. The screening assembly can be a continuous discharge assembly, an intermittent discharge assembly, or a gravity discharge assembly. Clean air treated by the dust removal assembly is drawn into the frame via an external air supply pipe, an air intake frame, and a blower for recycling. It is then recirculated by the screening assembly, and the contaminated air flow is sent back into the bag-type dust remover. This prevents the escape of coal powder and provides a rational overall design, pollution-free operation, and high screening efficiency.
Owner:TANGSHAN SMART COAL PREPARATION TECHNOLOGY CO LTD

A method and equipment for extracting and recovering tantalum and niobium metals from lepidolite tailings

The application provides a method and equipment for extracting and recovering tantalum and niobium metals from lithium mica tailings, and relates to the technical field of metal material recovery, and comprises the following steps: step S1, crushing and ball milling the tailings to a certain fineness; step S2, preliminarily enriching tantalum and niobium minerals in the tailings by using a gravity separation method to obtain a rough tantalum and niobium concentrate and a rough tailing; and step S3, performing one-time sweeping on the rough tailing by using a high gradient magnetic separation method to obtain a rough tantalum and niobium concentrate and a magnetic separation tailing. The scheme finally realizes the third shaking table concentration after the first shaking table tantalum and niobium concentrate and the second shaking table tantalum and niobium concentrate are mixed uniformly, and finally obtains a tantalum and niobium concentrate with a grade greater than 18% and a recovery rate greater than 40%. The lithium mica tailings contain a certain amount of valuable metal elements such as tantalum and niobium, and the method can recover and utilize these originally discarded rare metals, reduce resource waste, and improve the comprehensive utilization rate of mineral resources.
Owner:JIANGXI JIULING LITHIUM CO LTD

Apparatus, system, and method for the recovery of fine heavy minerals

A method, system, and apparatus for recovering fine heavy minerals from particulate ore. At least two inclined recovery surfaces are provided for parallel operation, and a liquid slurry containing the heavy minerals is supplied to at least one of the surfaces to remove the heavy minerals from the slurry in a heavy minerals capture cycle. In a cleaning cycle, the heavy minerals are released from the at least one surface for collection, which release is preferably achieved by applying water jets which may be disposed on spray bars positioned along the length of the surface and may be applied sequentially to drive the heavy minerals toward a discharge end for collection. A valve arrangement allows the liquid slurry to engage one surface for the heavy mineral capture cycle, while diverting the liquid slurry away from another surface to allow the cleaning cycle, and the valve arrangement may be automatically controlled.
Owner:AJ MIN INC

Novel skid-mounted wind power coal separator system

The utility model relates to a wind power coal separator system, and particularly discloses a novel skid-mounted wind power coal separator system, which comprises a separation box body, an air supply box body and a dust removal box body, and a separation device, an air supply device and a dust removal device are respectively and fixedly arranged in the separation box body, the air supply box body and the dust removal box body. The sorting box body is stacked on the air supply box body and is communicated with the air supply box body; air pipes are connected between the sorting box body and the dust removal box body and between the air supply box body and the dust removal box body, and the space in the dust removal box body and the space jointly formed by the sorting box body and the air supply box body are all closed spaces. The skid-mounted box type coal dressing machine is simple in structure, mounting, dismounting, transporting and other procedures are efficient and fast due to the skid-mounted box body structure, a large amount of manpower, material resources and time are saved, dust pollution can be prevented through the closed structure, and the skid-mounted box type coal dressing machine is suitable for coal dressing of various coal mines.
Owner:HANDAN FEIXIANG HONGFENG MINING MASCH MFG CO LTD

Method for recovering used material particles

PendingJP2026082159ASievingScreeningSlagRefractory
This invention provides a method for recovering material particles that enable the recycling of refractory materials from blast furnace troughs, even those with small particle sizes or low density. [Solution] A method for recovering spent material particles, comprising: a recovery step of recovering material particles from a blast furnace trough; a crushing step of crushing the recovered material particles; a magnetic separation step of separating metallic iron from the crushed material particles; a sieving step of sorting the material particles after separation of metallic iron according to particle size; and a separation step of separating the sorted material particles according to the density difference of the constituents, wherein the material particles are spent blast furnace trough refractory material, and in the recovery step, slag adhering to the surface of the blast furnace trough is peeled off, and the upstream and downstream of the blast furnace trough are recovered separately.
Owner:JFE STEEL CORP

Pneumatic suspension dry type separation equipment

The invention discloses pneumatic suspension dry-type separation equipment, which belongs to the technical field of material separation, and comprises a separation box body with a cavity, the upper end of the cavity is provided with an exhaust port, and the lower end of the cavity is provided with a first discharge port; the channel plate is obliquely arranged in the sorting box body and partitions the cavity; a plurality of first through holes are formed in the channel plate; the multiple layers of spoilers are arranged below the channel plate, a plurality of second through holes are formed in the spoilers, and the second through holes in the adjacent spoilers are formed in a staggered mode in the vertical direction; the diameter of the first through hole is larger than the all-pass diameter of the sorted material, and the diameter of the second through hole is not smaller than that of the first through hole; a communicating port of the air inlet pipeline and the cavity is positioned below the spoiler; the two control valves are arranged at the first discharge hole; materials flow into the channel plate and flow downwards under the action of gravity, rising airflow with stable air pressure is formed under turbulence of the second through holes in the multiple layers of spoilers, the light materials are in a stable suspension jumping state, and the large-density materials fall into the first discharging opening under the action of gravity.
Owner:SHANDONG HUATE MAGNET TECH CO LTD +1

Nonflammable recycling apparatus and methods of use

Set forth herein are apparatus for recycling a variety of devices, such as, but not limited to, electrochemical devices that are flammable, reactive, that contain flammable materials, or that become flammable or reactive during recycling processing. Certain apparatus include nonflammable or nonreactive parts, such as, but not limited to, nonflammable conveying mechanisms and / or nonreactive conveying mechanisms. Also set forth herein are processes for using these apparatus. The processes include means for reducing or eliminating thermite and / or thermite-like reactions during the processing of electrochemical devices. In certain embodiments, the electrochemical devices include, but are not limited to, batteries (e.g., lithium-ion batteries or lithium-metal batteries), and battery components such as cathodes, electrolytes, anodes, and current collectors.
Owner:REDWOOD MATERIALS INC

Rotary material uniformizing device and ladder flow sorting system

The utility model relates to the technical field of preparation equipment, in particular to a rotary material uniformizing device and a ladder flow separation system. The rotary material uniformizing device is used for the coal sorting system, the coal sorting system comprises a material bin and a conveyor, the material bin is arranged at the discharging end of the conveyor, and the rotary material uniformizing device is arranged above the material bin; the rotary material uniformizing device comprises a driver, a rotating shaft and a material blocking plate. One end of the striker plate is connected with the rotating shaft; the driver is in transmission connection with the rotating shaft and drives the rotating shaft to rotate. The rotary material homogenizing device is arranged above the material bin, so that a single blanking point of the material is changed into a plurality of blanking points, the uniformity of the density and the granularity of the material in the material bin is improved, the phenomenon of material segregation is avoided, the density and the granularity of the material subsequently entering the sorting equipment are uniform along the transverse end face, and the sorting effect of the sorting equipment is improved.
Owner:SHANDONG LAIWU COAL MASCH INTELLIGENT TECH CO LTD

Multi-layer vibrating concentrating table

ActiveCN224072217Uquality improvementControl the speed of removalSievingScreeningThermodynamicsElectric machine
The utility model discloses a multilayer vibration type concentration table which comprises a screening barrel, a plurality of through holes are formed in the side surface of the screening barrel, filter screens are fixedly connected in the through holes, one end of the screening barrel is fixedly connected with a motor, and the output end of the motor is fixedly connected with a rotating shaft. According to the ore screening device, the screening barrel is matched with the through hole, ore before separation can be screened, impurities can be screened out, the screened ore can be stirred under the cooperation of the motor and the stirring rod, the impurities are helped to sink to the bottom to be discharged, meanwhile, the ore screening device can be matched with the screening barrel subjected to inclination adjustment to enable the ore to be discharged out of the screening barrel, and the screening efficiency is improved. The inclination angle of the screening barrel can be adjusted, then the ore displacement speed is controlled, impurities can be completely screened out from the through holes, the screening efficiency is improved, the situation that secondary screening is needed due to the fact that a large number of impurities are contained in the sorted ore is effectively avoided, and the quality of the sorted ore is improved.
Owner:禄丰县凯飞石料加工有限公司

A dry separation device and system for fine particulate material

The application discloses a fine particle material dry separation device and a dry separation system. The fine particle material dry separation device comprises a rack, a separation bin, a separation bed, a driving device, a dust removal system and an air supply system. The separation bed comprises an upper bed body and a lower bed body located below the upper bed body. The upper bed body is provided with a first upper bed body end corresponding to the position of a feeding port and a second upper bed body end located opposite to the first upper bed body end. The position of a first discharge port corresponds to the second upper bed body end. The upper bed body is provided with a sieve hole. The aperture of the sieve hole increases in the direction extending from the first upper bed body end to the second upper bed body end. The lower bed body is provided with a first lower bed body end corresponding to the position of the first upper bed body end and a second lower bed body end located opposite to the first lower bed body end. The position of a third discharge port corresponds to the first lower bed body end. The position of a second discharge port corresponds to the second lower bed body end. The lower bed body is provided with an air inlet hole.
Owner:DRY SEPARATION TECHNOLOGY (TIANJIN) CO LTD

Densimetric separating table

ActiveDE602022032058T2Pneumatic tables
Owner:MOGENSEN SPAIN SLU

Sorting bed for wind power jigging dry coal separator

The utility model belongs to the technical field of coal separation, and discloses a separation bed for a wind power jigging dry coal separator, which comprises a frame, a base, a lifting mechanism, a separation bed, a telescopic rod, a first spring, a dust cover, a purification mechanism, a hopper, a first discharge hopper and a second discharge hopper, and the right end of the base is connected with the right end of the top of the frame through a pin shaft. The lifting mechanism is fixedly connected to the left end of the upper surface of the frame, and the top of the lifting mechanism is connected with the left end of the base through a pin shaft. One end of the separation bed is connected to the right end of the base through a pin shaft, vibration motors are installed on the front side and the rear side of the separation bed correspondingly, and the separation bed vibrates for coal separation. The device has a gas purification function, prevents dust from polluting air, prevents raw material loss through dust collection, changes the gradient of the separation bed, can change the gradient of the separation bed according to the content of gangue, and improves the coal separation efficiency.
Owner:TANGSHAN JINZE COAL PREPARATION MASCH CO LTD

Waste plastic treatment facility and waste plastic treating method

This waste plastic treatment facility comprises: a wind power sorting device (10) to which waste plastic is supplied; a means (20) for agglomerating waste plastic separated as low-density objects in the wind power sorting device (10); and a coke oven (30) into which the agglomerated waste plastic and waste plastic separated as high-density objects in the wind power sorting device (10) are charged and which thermally decomposes the waste plastics.

System for constructing building material from lunar soil and associated method

A system and associated method constructs a building material from lunar soil. A magnetic sorter magnetically sorts the lunar soil and the system creates a layered surface comprising a microwave susceptible, thermal conductive top layer of lunar soil and a poorly microwave-susceptible and poorly thermally conductive sublayer of lunar soil. A microwave generator generates microwave energy into an antenna and directs the microwave energy onto the top layer of lunar soil to sinter the microwave susceptible, thermal conductive top layer of lunar soil.
Owner:UNIVERSITY OF CENTRAL FLORIDA RESEARCH FOUNDATION INC

Installation and method for preparing coated wooden material compression mouldings

The invention relates to a plant (1) for processing coated wood-based molded bodies (100) into free-flowing particles comprising: a comminution device (2) for contact comminution of coated wood-based molded bodies (100) into wood-based molded body fragments containing coating and uncoated wood-based molded body fragments; a riser tube air classifier (3) for classifying into a defective fraction (31) with predominantly coated wood-based molded body fragments and a good fraction (32) with predominantly uncoated wood-based molded body fragments; a feeding device (4) for feeding the riser tube air classifier (3) with wood-based molded body fragments in a weight- and / or time-dependent manner.wherein the feed device (4) comprises a weighing device for gravimetrically determining the feed rate of the riser tube air classifier (3) per unit of time, wherein the riser tube air classifier (3) is downstream of the comminution device (2) and the feed device (4) is arranged between the riser tube air classifier (3) and the comminution device (2).
Owner:SIEMPELKAMP MASCHINEN UND ANLAGENBAU GMBH & CO KG

System and method for preparing coated wood material compression-moulded bodies

The invention relates to a system (1) for preparing coated wood material compression-moulded bodies (100) to form scatterable particles, comprising: a comminuting device (2) for the contact-based comminuting of coated wood material compression-moulded bodies (100) into wood material compression-moulded body fragments with coating-containing wood material compression-moulded body fragments and coating-free wood material compression-moulded body fragments; a riser-pipe air classifier (3) for classification into a bad fraction (31) with predominantly coating-containing wood material compression-moulded body fragments and a good fraction (32) with predominantly coating-free wood material compression-moulded body fragments; an intake device (4) for the weight-dependent and / or time-dependent supplying of the riser-pipe air classifier (3) with wood material compression-moulded body fragments, wherein the intake device (4) comprises a weighing device for the gravimetric determination of the supplying of the riser-pipe air classifier (3) per time unit, wherein the riser-pipe air classifier (3) is downstream of the comminuting device (2) and the intake device (4) is arranged between the riser-pipe air classifier (3) and the comminuting device (2).
Owner:SIEMPELKAMP MASCHINEN UND ANLAGENBAU GMBH & CO KG

Waste plastic treatment facility and waste plastic treating method

This waste plastic treatment facility comprises: a wind power sorting device (10) to which waste plastic is supplied; a means (20) for agglomerating waste plastic separated as low-density objects in the wind power sorting device (10); and a coke oven (30) into which the agglomerated waste plastic and waste plastic separated as high-density objects in the wind power sorting device (10) are charged and which thermally decomposes the waste plastics.
Owner:NIPPON STEEL CORPORATION

Anti-clogging device for drywasher flow opening

A drywasher agitator is configured for use with a hopper and a recovery box. The hopper includes a flow opening formed therein to allow particulate within the hopper to pass through the flow opening and into the recovery box. The recovery box includes a main body and a panel extending from the main body. The agitator includes a wire having a first segment and a second segment. The first segment is connectable to the panel and extends along a first axis and a second segment extends along a second axis angled relative to the first axis. The wire is configured to extend from the panel and into the flow opening during use of the hopper and the recovery box to agitate particulate near the flow opening to mitigate clogging of particulate within the flow opening.
Owner:RIECK ROBERT

Integrated screening and air separation system for material processing

An integrated system for the efficient processing of mixed materials of varying density is disclosed. The system (100) addresses the challenges of separating small sticky fines and conducting air classification within a confined space. The system combines a flexible mat screener (110) with an air knife generator (130) in a single unit, thereby reducing the need for multiple separate machines. This innovative design allows for effective screening and air separation of materials of different density while optimizing work space and reducing operational costs. The unit features a load deck (108), flexible mat screeners (110, 114), and a separation plate (128), all integrated into one compact framework. This configuration not only enhances the processing efficiency but also minimizes the environmental impact by reducing energy consumption. The system is particularly advantageous for applications with limited available footprint, offering a streamlined solution for material processing industries.
Owner:ACTION EQUIPMENT CO INC

Vacuum filtration system for a dry bulk trailer and method of using the same

A filtration system for a dry bulk trailer tank includes a canister containing a filter media separating a dusty air inlet and a clean air outlet on the canister. A dusty air line connects the tank with the dusty air inlet. A clean air line connects the clean air outlet with the exterior environment atmosphere. In a loading mode material is pneumatically conveyed from the tank through the dusty air line into the canister, through the filter media and from the canister through the clean air outlet and the clean air line. In a cleaning mode air flow is reversed and flows from the exterior environment atmosphere through the clean air line and the clean air outlet into the canister, through the filter media dislodging material from the filter media, and from the canister with dislodged material through the dusty air inlet and dusty air line to the tank.
Owner:BULK TANK INC

Separator tables, deck mounting systems, deck assemblies, and related methods

PCT designated stageWO2025158227A1Pneumatic tablesMechanicsPiston rod
A separator table includes a base frame and a deck assembly movably coupled to the base frame. The deck assembly includes a mounting frame movably coupled to the base frame, a first removable portion, a second removable portion, and a plurality of mounting systems securing the first removable portion and the second removable portion to the mounting frame. Each of the plurality of mounting systems includes a pneumatic cylinder, a barrel mounted to the mounting frame, a piston housed within the barrel, a piston rod extending from the piston and out of the barrel, and a rod head attached to a longitudinal end of the piston rod opposite the piston and engaged with one of the first removable portion or the second removable portion.
Owner:CIMBRIA HEID GES

Anti-clogging device for drywasher flow opening

A drywasher agitator is configured for use with a hopper and a recovery box. The hopper includes a flow opening formed therein to allow particulate within the hopper to pass through the flow opening and into the recovery box. The recovery box includes a main body and a panel extending from the main body. The agitator includes a wire having a first segment and a second segment. The first segment is connectable to the panel and extends along a first axis and a second segment extends along a second axis angled relative to the first axis. The wire is configured to extend from the panel and into the flow opening during use of the hopper and the recovery box to agitate particulate near the flow opening to mitigate clogging of particulate within the flow opening.
Owner:RIECK ROBERT

Integrated feedstock preparation

PendingEP4731352A1Pneumatic tablesGrading
Apparatus, systems, and methods for integrated preparation of biomass feedstock particles. In certain implementations, apparatus include at least two biomass feedstock particle separators, and optionally a grinder. Also disclosed are bioenergy production systems, or methods of bioenergy production comprising integrated biomass feedstock preparation apparatus or systems.
Owner:MOTE INC

Machine and method for the extraction of gold from gold ore

A machine for the extraction of gold from gold ore has a separation bell (24) suitable to rest on a vibrating plate (27). The separation bell (24) has, at the bottom, a porous cap (32) that is convex upwards and is made up of a membrane suitable for allowing the passage of compressed air from a blower (21) through a first delivery pipe (22) to the separation bell (24). A plurality of nozzles (41), being fed by the blower (21), introduces circumferential air into the separation bell (24). At the top, a Y fitting (51) allows the passage of siliceous material in whirling upwards from inside the separation bell (24) to a duct (52), and then to a siliceous material recovery compartment (45), and the suction of concentrated gold material via a rigid tube (54) capable of rotating around a vertical axis.
Owner:BELLOFATTO DANIEL

System and method for automatically controlling product quality of combined type dry separation system

The invention discloses an automatic product quality control system and method for a combined type dry separation system in the technical field of coal separation, and the system comprises a first-section separation bed, a middle-section separation bed and a tail-section separation bed which are arranged in parallel, the middle gaps of the adjacent separation beds are connected through rubber sheets, and a vibration motor is mounted at a bed surface back plate of each separation bed; a discharging plate with the angle controlled through a servo motor is installed at the discharging end, each section of sorting bed supplies air through an air supply pipeline connected with a frequency conversion air blower, an air flow meter and an automatic air valve are installed on each air supply pipeline, and the first section of sorting bed and the tail section of sorting bed are connected with automatic suspension devices. According to the invention, the quality of the separated raw coal and the coal quality of the clean coal product and the gangue product are monitored on line, so that the separation process of the combined type dry separation system in the production process is regulated on line according to the quality of the raw coal and the product, and the adaptability and the intelligent level of the combined type dry separation machine to the change of the coal quality are improved.
Owner:CHINA COAL (TIANJIN) UNDERGROUND ENG INTELLIGENCE RES INST CO LTD +1

Sorting bed with screen and wind power coal separator applying same

The utility model relates to a separation bed, belongs to the technical field of coal processing, and particularly discloses a separation bed with a screen, which comprises a bed body and a bed surface mounted in the bed body, the bed surface comprises a first sub-bed surface, a second sub-bed surface and a third sub-bed surface, and a clean coal baffle is arranged at the front end of each sub-bed surface. A gangue discharging outlet is formed in the rear end of each stage of sub-bed surface, a gangue baffle with an adjustable height is arranged at each gangue discharging outlet, and a blanking baffle is arranged above each gangue discharging outlet; and the front end of the blanking baffle on the third sub-bed surface is fixedly connected with a screen, and the screen is provided with screen holes fully distributed on the screen. The utility model further discloses a wind power coal separator applying the separation bed. The wind power coal separator comprises a rack, a feeding device, a discharging device, a dust removal device, an air supply device and the separation bed with a screen. The gangue separator is simple in structure, small-particle gangue can be separated from clean coal at the last stage of separation bed and discharged, the coal separation quality is improved, and the gangue separator is suitable for separation of coal briquettes and gangue of various specifications.
Owner:HANDAN FEIXIANG HONGFENG MINING MASCH MFG CO LTD

Method and equipment for extracting and recovering tantalum and niobium metals from lepidolite tailings

ActiveCN121467192AHigh gradient magnetic separationGrain treatmentsNiobiumMetallic materials
The invention provides a method and equipment for extracting and recovering tantalum and niobium metals from lepidolite tailings, and relates to the technical field of metal material recovery, the method comprises the following steps: step S1, the tailings are crushed and ball-milled to a certain fineness; s2, tantalum-niobium minerals in the tailings are preliminarily enriched through a gravity concentration method, and roughed tantalum-niobium concentrates and roughed tailings are obtained; and S3, primary scavenging is conducted on the roughing tailings through a high-gradient magnetic separation method, and roughing tantalum-niobium concentrate and magnetic separation tailings are obtained. According to the scheme, the tantalum-niobium concentrate with the grade larger than 18% and the recovery rate larger than 40% is finally obtained after the tantalum-niobium concentrate with the primary shaking table and the tantalum-niobium concentrate with the secondary shaking table are evenly mixed, and a certain amount of valuable metal elements such as tantalum and niobium are contained in the lepidolite tailings; by means of the method, the originally abandoned rare metals can be recycled, resource waste is reduced, and the comprehensive utilization rate of mineral resources is increased.
Owner:JIANGXI JIULING LITHIUM CO LTD