Mineral screening system and method

Abstract

The invention relates to the technical field of mineral screening, and discloses a mineral screening system and method.The system comprises a collecting module, a processing module and a screening module, and the collecting module is used for collecting minerals from mineral raw materials; the conveying module is used for conveying the collected minerals to the next-step processing module; the treatment module is used for performing impurity removal and classified screening treatment on the minerals; and the magnetic separation module is used for carrying out magnetic separation treatment on the graded minerals to separate out magnetic minerals. The method comprises the following steps: collecting minerals from mineral raw materials; the collected minerals are conveyed to a next-step processing module; the minerals are subjected to impurity removal and classified screening treatment; and the graded minerals are subjected to magnetic separation treatment, and magnetic minerals are separated out. By arranging the dynamic stirring unit and the layered sedimentation area, the washing module can more effectively remove impurities in minerals, the cleaning effect is improved, and therefore the quality of a final product is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of mineral screening, and in particular to a mineral screening system and method. Background Art

[0002] In the field of mineral processing, mineral screening is a vital link. The main purpose of mineral screening is to separate useful minerals from impurities in mineral raw materials and classify them according to particle size for subsequent processing and utilization. Existing mineral screening technologies mainly include two categories: physical methods and chemical methods. Physical methods mainly include water washing, screening, magnetic separation, etc., while chemical methods mainly include flotation, leaching, etc.

[0003] Existing mineral screening systems usually include collection, transportation, processing and magnetic separation modules. In the collection module, a reclaimer is generally used to take out minerals from the mineral raw material pile or mine. In the transportation module, a conveyor belt or a conveying pipeline is generally used to transport the minerals to the next processing module. In the processing module, the minerals will be treated with impurities removal and classification screening. In the magnetic separation module, the minerals will be subjected to magnetic separation to separate magnetic minerals.

[0004] However, there are some problems with the existing mineral screening technology. For example, the existing water washing module can only perform a single cleaning function and cannot effectively remove impurities in the minerals; the screen of the graded screening module is easily clogged, affecting the screening effect; the magnetic separation effect of the magnetic separation module is poor and it is easy to cause environmental pollution.

[0005] In order to solve the above problems, researchers have been seeking to improve existing mineral screening technologies to increase the efficiency and effectiveness of mineral screening, reduce energy consumption and costs, and reduce the impact on the environment. Summary of the invention

[0006] In view of this, the present invention proposes a mineral screening system and method, aiming to solve the problems in the current technology.

[0007] A mineral screening system proposed by the present invention comprises:

[0008] Collection module: used to collect minerals from mineral raw materials;

[0009] Transport module: used to transport the collected minerals to the next processing module;

[0010] Processing module: used for impurity removal and grading and screening of minerals;

[0011] Magnetic separation module: used to magnetically separate the classified minerals and separate the magnetic minerals.

[0012] Optionally, the processing module includes a water washing module and a grading and screening module;

[0013] The water washing module is used to wash the transported minerals to remove impurities;

[0014] The grading and screening module is used to grade the washed minerals and separate minerals of different particle sizes.

[0015] Optionally, the water washing module specifically includes:

[0016] A feed port for receiving minerals from the conveying module;

[0017] A dynamic stirring unit, using a plurality of cross-arranged stirring arms, each of which is provided with an adjustable nozzle, for generating multi-directional and adjustable water flow in the water;

[0018] The stratified sedimentation area is designed as multiple sedimentation platforms at different heights. After the minerals are stirred in the water, they are stratified and settled on each platform according to their density.

[0019] Optionally, the hierarchical screening module specifically includes:

[0020] A classification feed port for receiving minerals from the water washing module;

[0021] A grading screen, wherein the grading screen uses a plurality of stacked screens, each of which has a different aperture size, to separate minerals of different particle sizes;

[0022] The grading screen vibration unit is used to provide vibration to the grading screen to promote the movement of minerals on the screen surface and prevent the screen holes from being blocked;

[0023] An oversize collection unit for collecting fine-grained minerals passing through the sieve holes;

[0024] The undersize discharge unit is used to discharge the coarse-grained minerals that fail to pass through the sieve holes.

[0025] Optionally, the processing module specifically includes:

[0026] The reclaiming unit is used to take out minerals from the mineral raw material pile or mine, which uses a chain or bucket wheel reclaimer to adapt to different raw material storage conditions and reclaiming requirements;

[0027] The primary crushing unit is used to initially crush the extracted minerals to meet the requirements of subsequent transportation and screening equipment;

[0028] The feeding unit is used to feed the crushed minerals evenly into the conveying module, using a vibrating feeder to achieve uniform distribution and flow control of the minerals;

[0029] The iron removal unit is used to remove iron impurities from minerals during the feeding process to prevent damage to subsequent equipment.

[0030] Optionally, the magnetic separation module specifically includes:

[0031] Magnetic separator, which uses a high gradient magnetic separator to achieve a high magnetic field magnetic separation effect;

[0032] The magnetic separator conveying device is used to convey the minerals to the magnetic separator for magnetic separation. It uses a rubber belt conveyor or a vibrating conveyor to meet the conveying requirements of minerals of different particle sizes;

[0033] Magnetic product collection system, used to collect magnetic minerals after magnetic separation, through the rotary discharge valve or pneumatic discharge valve to achieve dust-free discharge of minerals;

[0034] The non-magnetic product discharge system is used to discharge non-magnetic minerals after magnetic separation. It passes through a closed conveyor or a screw conveyor to reduce the loss of minerals and environmental pollution during the discharge process.

[0035] In addition, the present application also provides a mineral screening method, the method comprising:

[0036] collecting minerals from mineral raw materials;

[0037] Transport the collected minerals to the next processing module;

[0038] Remove impurities and grade and screen minerals;

[0039] The classified minerals are subjected to magnetic separation to separate the magnetic minerals.

[0040] Compared with the prior art, the beneficial effects of the present invention are as follows: the present application provides a mineral screening system and method, in which the collection module can adapt to mines or raw material piles of different sizes and types through the adjustability of the material taking device, such as adjusting the material taking speed and material taking range. An intelligent control system for the preliminary crushing device, such as using a sensor to monitor the mineral particle size, and automatically adjusting the working parameters of the crusher according to the particle size feedback to achieve the best crushing effect. Precise control of the feeding device, such as using frequency conversion technology and an intelligent control system to achieve precise adjustment of the feeding speed and stable control of the mineral flow. Efficient design of the iron removal device, such as using a strong magnetic field or electromagnetic induction technology to improve the removal efficiency of iron impurities and reduce potential damage to subsequent equipment. The buffering and flow control design of the storage hopper, such as using an elastic baffle or a rotary distributor, to balance the speed difference between feeding and conveying to ensure the stable operation of the system.

[0041] The multi-directional water jet and adjustability of the dynamic stirring device can be adjusted according to different mineral characteristics and cleaning requirements to improve cleaning efficiency. The multiple settling platform design of the stratified settling area can achieve finer particle size separation and improve product purity. The adjustable pore design of the high-efficiency filtration device can adapt to minerals of different particle sizes and improve the filtration effect. The circulating water utilization system and wastewater treatment subsystem can reduce water resource consumption and treat wastewater, improving the environmental performance of the system.

[0042] The grading and screening module uses a multi-layer grading screen design to allow minerals to be screened on multiple different screen surfaces, thereby achieving finer particle size separation. The optimized design of the grading screen vibration device, such as the use of variable frequency vibration or nonlinear vibration mode, can improve screening efficiency and screening quality. The automated design of the oversize and undersize collection system, such as the use of sensors and control systems, can achieve real-time monitoring and automatic adjustment of mineral particle size. The modular design of the grading module allows the screen to be quickly replaced according to different mineral characteristics and screening requirements, improving the flexibility and adaptability of the system.

[0043] High gradient design of magnetic separator to improve magnetic separation effect and mineral recovery rate. Adaptability and adjustability of conveying device of magnetic separator, such as using variable frequency speed regulation technology, to meet the conveying requirements of minerals of different particle sizes. Automated design of magnetic product collection system, such as using sensors and control systems to achieve real-time monitoring and automatic collection of magnetic minerals. Closed design of non-magnetic product discharge system to reduce mineral loss and environmental pollution during discharge. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] Various other advantages and benefits will become apparent to those of ordinary skill in the art by reading the detailed description of the preferred embodiments below. The accompanying drawings are only for the purpose of illustrating the preferred embodiments and are not to be considered as limiting the present invention. Moreover, the same reference symbols are used throughout the accompanying drawings to represent the same components. In the accompanying drawings:

[0045] Figure 1 A schematic diagram of a mineral screening system provided by the present invention;

[0046] Figure 2 A schematic diagram of a mineral screening method provided by the present invention. DETAILED DESCRIPTION

[0047] Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be limited by the embodiments set forth herein. On the contrary, these embodiments are provided in order to enable a more thorough understanding of the present disclosure and to be able to fully convey the scope of the present disclosure to those skilled in the art. It should be noted that, in the absence of conflict, the embodiments of the present invention and the features described in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0048] like Figure 1 As shown, Figure 1 A mineral screening system proposed by the present invention comprises:

[0049] Collection module: used to collect minerals from mineral raw materials;

[0050] Transport module: used to transport the collected minerals to the next processing module;

[0051] Processing module: used for impurity removal and grading and screening of minerals;

[0052] Magnetic separation module: used to magnetically separate the classified minerals and separate the magnetic minerals.

[0053] In this preferred embodiment, the processing module includes a water washing module and a grading and screening module;

[0054] The water washing module is used to wash the transported minerals to remove impurities;

[0055] The grading and screening module is used to grade the washed minerals and separate minerals of different particle sizes.

[0056] In this preferred embodiment, the water washing module specifically includes:

[0057] A feed port for receiving minerals from the conveying module;

[0058] The dynamic stirring unit adopts a plurality of cross-arranged stirring arms, each of which is provided with an adjustable nozzle, for generating multi-directional and adjustable water flow in the water; thereby achieving full mixing of minerals and water and impact on impurities, and improving cleaning efficiency;

[0059] The layered sedimentation area is designed as multiple sedimentation platforms at different heights. After the minerals are stirred in water, they are layered and settled on each platform according to their density, so as to more effectively separate impurities of different particle sizes.

[0060] It is understandable that the above-mentioned water washing module may further include some additional units, such as:

[0061] High-efficiency filtration unit, which features an adjustable pore size filtration medium, automatically adjusts the filtration pore size according to the different mineral particle sizes to achieve the best solid-liquid separation effect;

[0062] The circulating water utilization unit is characterized by recycling the filtered clean water and recycling it to reduce the consumption of water resources;

[0063] The wastewater treatment subunit is characterized by integrating physical and chemical treatment units to treat wastewater containing impurities to meet discharge standards or requirements for recycling;

[0064] Moreover, the multi-directional water jet and adjustability of the dynamic stirring device can be adjusted according to different mineral characteristics and cleaning requirements to improve cleaning efficiency. The multiple settling platform design of the stratified settling area can achieve finer particle size separation and improve product purity. The adjustable pore design of the high-efficiency filtration device can adapt to minerals of different particle sizes and improve the filtration effect. The circulating water utilization system and wastewater treatment subsystem can reduce water resource consumption and treat wastewater, improving the environmental performance of the system.

[0065] In this preferred embodiment, the hierarchical screening module specifically includes:

[0066] A classification feed port for receiving minerals from the water washing module;

[0067] A grading screen, wherein the grading screen uses a plurality of stacked screens, each of which has a different aperture size, to separate minerals of different particle sizes;

[0068] The grading screen vibration unit is used to provide vibration to the grading screen to promote the movement of minerals on the screen surface and prevent the screen holes from being blocked;

[0069] An oversize collection unit for collecting fine-grained minerals passing through the sieve holes;

[0070] The undersize discharge unit is used to discharge the coarse-grained minerals that fail to pass through the sieve holes.

[0071] It is understandable that the grading screening module uses a multi-layer grading screen design to allow minerals to be screened on multiple different screen surfaces, thereby achieving finer particle size separation. The optimized design of the grading screen vibration device, such as the use of variable frequency vibration or nonlinear vibration mode, can improve screening efficiency and screening quality. The automated design of the oversize and undersize collection system, such as the use of sensors and control systems, can achieve real-time monitoring and automatic adjustment of mineral particle size. The modular design of the grading module allows the screen to be quickly replaced according to different mineral characteristics and screening requirements, improving the flexibility and adaptability of the system.

[0072] In this preferred embodiment, the processing module specifically includes:

[0073] The reclaiming unit is used to take out minerals from the mineral raw material pile or mine, which uses a chain or bucket wheel reclaimer to adapt to different raw material storage conditions and reclaiming requirements;

[0074] The primary crushing unit is used to initially crush the extracted minerals to meet the requirements of subsequent transportation and screening equipment;

[0075] The feeding unit is used to feed the crushed minerals evenly into the conveying module, using a vibrating feeder to achieve uniform distribution and flow control of the minerals;

[0076] The iron removal unit is used to remove iron impurities from minerals during the feeding process to prevent damage to subsequent equipment.

[0077] It is understandable that the acquisition module may also include a storage hopper for temporarily storing the minerals output by the feeding device, and its design feature may be a buffer function to balance the difference between the feeding speed and the conveying speed; in this way, the acquisition module can adapt to mines or raw material piles of different sizes and types through the adjustability of the material taking device, such as adjusting the material taking speed and the material taking range. Intelligent control system of the preliminary crushing device, such as using sensors to monitor the mineral particle size and automatically adjusting the working parameters of the crusher according to the particle size feedback to achieve the best crushing effect. Precise control of the feeding device, such as using frequency conversion technology and intelligent control system to achieve precise adjustment of the feeding speed and stable control of the mineral flow. Efficient design of the iron removal device, such as using strong magnetic field or electromagnetic induction technology to improve the removal efficiency of iron impurities and reduce potential damage to subsequent equipment. Buffer and flow control design of the storage hopper, such as using elastic partitions or rotary distributors to balance the speed difference between feeding and conveying to ensure the stable operation of the system.

[0078] In this preferred embodiment, the magnetic separation module specifically includes:

[0079] Magnetic separator, which uses a high gradient magnetic separator to achieve a high magnetic field magnetic separation effect;

[0080] The magnetic separator conveying device is used to convey the minerals to the magnetic separator for magnetic separation. It uses a rubber belt conveyor or a vibrating conveyor to meet the conveying requirements of minerals of different particle sizes;

[0081] Magnetic product collection system, used to collect magnetic minerals after magnetic separation, through the rotary discharge valve or pneumatic discharge valve to achieve dust-free discharge of minerals;

[0082] The non-magnetic product discharge system is used to discharge non-magnetic minerals after magnetic separation. It passes through a closed conveyor or a screw conveyor to reduce the loss of minerals and environmental pollution during the discharge process.

[0083] It is understandable that the high gradient design of the magnetic separator is used to improve the magnetic separation effect and the recovery rate of the minerals. The adaptability and adjustability of the conveying device of the magnetic separator, such as the use of variable frequency speed regulation technology, can meet the transportation needs of minerals of different particle sizes. The automated design of the magnetic product collection system, such as the use of sensors and control systems, can achieve real-time monitoring and automatic collection of magnetic minerals. The closed design of the non-magnetic product discharge system can reduce the loss of minerals and environmental pollution during the discharge process.

[0084] The overall compact design of the magnetic separation module reduces footprint and installation costs.

[0085] In summary, the present application provides a mineral screening system. By setting a dynamic stirring unit and a stratified sedimentation area, the water washing module can more effectively remove impurities in the mineral, improve the cleaning effect, and thus improve the quality of the final product. By setting a plurality of stacked screens and vibration units, the graded screening module can effectively prevent the sieve holes from being blocked, improve the screening effect, and thus improve the screening efficiency and output. By adopting a high-gradient magnetic separator and a magnetic product collection system, the magnetic separation module can achieve a better magnetic separation effect, improve the recovery rate of magnetic minerals, and reduce resource waste. The entire mineral screening system has the advantages of high automation, simple operation, high efficiency, and low energy consumption, and can meet various needs in the mineral processing process, improve production efficiency and economic benefits. The design of the system takes into account environmental protection requirements, reduces environmental pollution in the mineral processing process, and meets the requirements of sustainable development. By optimizing the module design and equipment configuration, the present invention can adapt to mineral raw materials of different types and particle sizes, and has wide applicability and flexibility. The operation and maintenance costs of the system are low, which can reduce the operating costs of mineral processing enterprises and improve competitiveness. The mineral screening system of the present invention can reduce resource waste and environmental pollution while improving mineral processing efficiency and product quality, and has important social and economic significance.

[0086] In addition, please refer to Figure 2 , Figure 2 This application provides a mineral screening method, which comprises:

[0087] S1: Collect minerals from mineral raw materials;

[0088] S2: transport the collected minerals to the next processing module;

[0089] S3: removing impurities and grading and screening the minerals;

[0090] S4: The classified minerals are subjected to magnetic separation to separate the magnetic minerals.

[0091] In this way, the method improves the overall screening efficiency and reduces the processing time by optimizing each step of mineral screening, thereby improving production efficiency. Through fine graded screening and magnetic separation steps, the method can accurately separate minerals of different particle sizes, and effectively separate magnetic minerals, thereby improving the quality and purity of the product. By improving the design of each module, energy consumption is reduced, resource consumption is reduced, and the requirements of energy conservation and emission reduction are met. The method reduces environmental pollution and waste generation during the mineral screening process, and meets the requirements of environmental protection and sustainable development. The operation is simple and easy to control, which reduces the skill requirements of the operator and improves the safety of production. By improving the screening efficiency and product quality, the production cost is reduced and the economic benefits of the enterprise are improved. The method is suitable for various types of mineral raw materials, can process minerals of different particle sizes and properties, and has a wide range of applicability.

[0092] In summary, the present application provides a mineral screening system and method, in which the collection module can adapt to mines or raw material piles of different sizes and types through the adjustability of the material taking device, such as adjusting the material taking speed and material taking range. An intelligent control system for the preliminary crushing device, such as using a sensor to monitor the mineral particle size, and automatically adjusting the working parameters of the crusher according to the particle size feedback to achieve the best crushing effect. Precise control of the feeding device, such as using frequency conversion technology and an intelligent control system to achieve precise adjustment of the feeding speed and stable control of the mineral flow. Efficient design of the iron removal device, such as using a strong magnetic field or electromagnetic induction technology to improve the removal efficiency of iron impurities and reduce potential damage to subsequent equipment. The buffering and flow control design of the storage hopper, such as using an elastic baffle or a rotary distributor, to balance the speed difference between feeding and conveying, ensure the stable operation of the system. The multi-directional water jet and adjustability of the dynamic stirring device can be adjusted according to different mineral characteristics and cleaning requirements to improve the cleaning efficiency. The design of multiple sedimentation platforms in the stratified sedimentation area can achieve finer particle size separation and improve the purity of the product. The adjustable pore design of the high-efficiency filtration device can adapt to minerals of different particle sizes and improve the filtration effect. The circulating water utilization system and wastewater treatment subsystem can reduce water resource consumption and treat wastewater, thereby improving the environmental performance of the system. The grading screening module uses a multi-layer grading screen design to allow minerals to be screened on multiple different screen surfaces, thereby achieving finer particle size separation. The optimized design of the grading screen vibration device, such as the use of variable frequency vibration or nonlinear vibration mode, can improve the screening efficiency and screening quality. The automated design of the overscreen and underscreen collection system, such as the use of sensors and control systems, can achieve real-time monitoring and automatic adjustment of mineral particle size. The modular design of the grading module allows the screen to be quickly replaced according to different mineral characteristics and screening requirements, improving the flexibility and adaptability of the system. The high gradient design of the magnetic separator can improve the magnetic separation effect and the recovery rate of the mineral. The adaptability and adjustability of the conveying device of the magnetic separator, such as the use of variable frequency speed regulation technology, can adapt to the transportation requirements of minerals of different particle sizes. The automated design of the magnetic product collection system, such as the use of sensors and control systems, can achieve real-time monitoring and automatic collection of magnetic minerals. The closed design of the non-magnetic product discharge system can reduce the loss of minerals and environmental pollution during the discharge process.

[0093] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program codes.

[0094] The present application is described with reference to flowcharts and / or block diagrams of methods, devices (systems) and computer program products according to embodiments of the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.

[0095] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.

[0096] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 A step that specifies a function in one or more boxes.

[0097] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that the specific implementation methods of the present invention can still be modified or replaced by equivalents. Any modification or equivalent replacement that does not depart from the spirit and scope of the present invention should be covered within the scope of protection of the claims of the present invention.

Claims

1. A mineral screening system, characterized in that: include: Collection module: used to collect minerals from mineral raw materials; Transport module: used to transport the collected minerals to the next processing module; Processing module: used for impurity removal and grading and screening of minerals; Magnetic separation module: used to magnetically separate the classified minerals and separate the magnetic minerals.

2. A mineral screening system according to claim 1, characterized in that: The processing module includes a water washing module and a grading and screening module; The water washing module is used to wash the transported minerals to remove impurities; The grading and screening module is used to grade the washed minerals and separate minerals of different particle sizes.

3. A mineral screening system according to claim 2, characterized in that: The water washing module specifically comprises: A feed port for receiving minerals from the conveying module; A dynamic stirring unit, using a plurality of cross-arranged stirring arms, each of which is provided with an adjustable nozzle, for generating multi-directional and adjustable water flow in the water; The stratified sedimentation area is designed as multiple sedimentation platforms at different heights. After the minerals are stirred in the water, they are stratified and settled on each platform according to their density.

4. A mineral screening system according to claim 2, characterized in that: The hierarchical screening module specifically includes: A classification feed port for receiving minerals from the water washing module; A grading screen, wherein the grading screen uses a plurality of stacked screens, each of which has a different aperture size, to separate minerals of different particle sizes; The grading screen vibration unit is used to provide vibration to the grading screen to promote the movement of minerals on the screen surface and prevent the screen holes from being blocked; An oversize collection unit for collecting fine-grained minerals passing through the sieve holes; The undersize discharge unit is used to discharge the coarse-grained minerals that fail to pass through the sieve holes.

5. A mineral screening system according to claim 4, characterized in that: The processing module specifically includes: The reclaiming unit is used to take out minerals from the mineral raw material pile or mine, which uses a chain or bucket wheel reclaimer to adapt to different raw material storage conditions and reclaiming requirements; The primary crushing unit is used to initially crush the extracted minerals to meet the requirements of subsequent transportation and screening equipment; The feeding unit is used to feed the crushed minerals evenly into the conveying module, using a vibrating feeder to achieve uniform distribution and flow control of the minerals; The iron removal unit is used to remove iron impurities from minerals during the feeding process to prevent damage to subsequent equipment.

6. A mineral screening system according to claim 1, characterized in that: The magnetic separation module specifically includes: Magnetic separator, which uses a high gradient magnetic separator to achieve a high magnetic field magnetic separation effect; The magnetic separator conveying device is used to convey the minerals to the magnetic separator for magnetic separation. It uses a rubber belt conveyor or a vibrating conveyor to meet the conveying requirements of minerals of different particle sizes; Magnetic product collection system, used to collect magnetic minerals after magnetic separation, through the rotary discharge valve or pneumatic discharge valve to achieve dust-free discharge of minerals; The non-magnetic product discharge system is used to discharge non-magnetic minerals after magnetic separation. It passes through a closed conveyor or a screw conveyor to reduce the loss of minerals and environmental pollution during the discharge process.

7. A mineral screening method, characterized in that: The method comprises: collecting minerals from mineral raw materials; Transport the collected minerals to the next processing module; Remove impurities and grade and screen minerals; The classified minerals are subjected to magnetic separation to separate the magnetic minerals.

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