A mineral screening system and method

Abstract

This invention relates to the field of mineral screening technology, and discloses a mineral screening system and method. The system includes: a collection module for collecting minerals from raw mineral materials; a conveying module for conveying the collected minerals to a next processing module; a processing module for removing impurities and grading the minerals; and a magnetic separation module for magnetically separating the graded minerals to separate magnetic minerals. The method includes: collecting minerals from raw mineral materials; conveying the collected minerals to the next processing module; removing impurities and grading the minerals; and magnetically separating the graded minerals to separate magnetic minerals. By setting up a dynamic stirring unit and a stratified settling zone, the washing module can more effectively remove impurities from the minerals, improve the cleaning effect, and thus improve the quality of the final product.

Description

Technical Field

[0001] This invention relates to the field of mineral screening technology, and more specifically, to a mineral screening system and method. Background Technology

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

[0003] Existing mineral screening systems typically include modules for collection, conveying, processing, and magnetic separation. In the collection module, a reclaimer is generally used to remove minerals from the mineral stockpile or mine. In the conveying module, conveyor belts or pipelines are typically used to transport the minerals to the next processing module. In the processing module, the minerals undergo impurity removal and grading screening. In the magnetic separation module, the minerals are subjected to magnetic separation to separate magnetic minerals.

[0004] However, existing mineral screening technologies have some problems. For example, existing water washing modules often only perform a single washing function and cannot effectively remove impurities from minerals; the screens of grading and screening modules are prone to clogging, affecting the screening effect; and magnetic separation modules have poor magnetic separation effect and are prone to causing environmental pollution.

[0005] To address these issues, researchers have been seeking to improve existing mineral screening technologies to enhance efficiency and effectiveness, reduce energy consumption and costs, and minimize environmental impact. Summary of the Invention

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

[0007] The present invention proposes a mineral screening system, comprising:

[0008] Acquisition module: Used to collect minerals from mineral raw materials;

[0009] Conveying module: Used to transport the collected minerals to the next processing module;

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

[0011] Magnetic separation module: Used to perform magnetic separation on graded minerals to separate 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 delivered 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] The feed inlet is used to receive minerals from the conveying module;

[0017] The dynamic stirring unit employs multiple cross-arranged stirring arms, each of which is equipped with an adjustable nozzle to generate multi-directional and adjustable water flow in the water.

[0018] The stratified settling zone is designed with multiple settling platforms of different heights. After being stirred in the water, the minerals settle in layers on each platform according to their different densities.

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

[0020] A graded feed inlet is used to receive minerals from the washing module;

[0021] The grading sieve uses multiple stacked screens, each with 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 clogging.

[0023] The oversize collection unit is used to collect fine-grained minerals that pass through the sieve openings;

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

[0025] Optionally, the processing module specifically includes:

[0026] The material handling unit is used to remove minerals from mineral stockpiles or mines. It uses chain-type or bucket wheel-type material handling machines to adapt to different raw material storage conditions and material handling requirements.

[0027] The primary crushing unit is used to perform preliminary crushing of the extracted minerals to meet the requirements of subsequent conveying and screening equipment;

[0028] The feeding unit is used to uniformly feed the crushed minerals into the conveying module. It adopts a vibrating feeder to achieve uniform distribution of minerals and flow control.

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

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

[0031] The magnetic separator uses a high-gradient magnetic separator to achieve a high magnetic field separation effect;

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

[0033] A magnetic product collection system is used to collect magnetic minerals after magnetic separation. It achieves dust-free unloading of minerals through a rotary unloading valve or a pneumatic unloading valve.

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

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

[0036] Minerals are extracted from mineral raw materials;

[0037] The collected minerals are then transported to the next processing module.

[0038] The minerals are subjected to impurity removal and grading screening.

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

[0040] Compared with existing technologies, the beneficial effects of this invention are as follows: This application provides a mineral screening system and method, wherein the collection module, through the adjustability of the material handling device, such as the adjustable material handling speed and range, adapts to mines or raw material stockpiles of different sizes and types. The intelligent control system of the primary crushing device, such as using sensors to monitor mineral particle size and automatically adjusting the crusher's operating parameters based on particle size feedback, achieves optimal crushing results. Precise control of the feeding device, such as using frequency conversion technology and an intelligent control system, enables precise adjustment of the feeding speed and stable control of the mineral flow rate. The efficient design of the iron removal device, such as employing strong magnetic field or electromagnetic induction technology, improves the removal efficiency of iron impurities and reduces potential damage to subsequent equipment. The buffering and flow control design of the storage hopper, such as using elastic baffles or rotary distributors, balances the speed difference between feeding and conveying, ensuring stable system operation.

[0041] The dynamic stirring device features multi-directional water jetting and adjustability, allowing for adjustments based on different mineral characteristics and cleaning requirements to improve cleaning efficiency. The multi-sedimentation platform design in the stratified settling zone enables finer particle size separation, improving product purity. The adjustable pore size design of the high-efficiency filtration device can adapt to minerals of varying particle sizes, enhancing filtration effectiveness. The circulating water utilization system and wastewater treatment subsystem reduce water consumption and treat wastewater, improving the system's environmental performance.

[0042] The grading and screening module utilizes a multi-layer grading screen design, allowing minerals to be screened on multiple different screen surfaces, thus achieving finer particle size separation. Optimized design of the grading screen vibration device, such as employing variable frequency vibration or non-linear vibration modes, improves screening efficiency and quality. Automated design of the oversize and undersize material collection system, using sensors and control systems, enables real-time monitoring and automatic adjustment of mineral particle size. The modular design of the grading module allows for rapid screen replacement based on different mineral characteristics and screening requirements, enhancing the system's flexibility and adaptability.

[0043] The magnetic separator features a high-gradient design to improve separation efficiency and mineral recovery. The conveying system is adaptable and adjustable, employing variable frequency speed control technology to accommodate minerals of varying particle sizes. The automated design of the magnetic product collection system, utilizing sensors and control systems, enables real-time monitoring and automatic collection of magnetic minerals. The closed-loop design of the non-magnetic product discharge system minimizes mineral loss and environmental pollution during discharge. Attached Figure Description

[0044] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

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

[0046] Figure 2 This is a schematic diagram of a mineral screening method provided by the present invention. Detailed Implementation

[0047] Exemplary embodiments of the present disclosure will now be described in more detail with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be implemented in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present disclosure and to fully convey the scope of the disclosure to those skilled in the art. It should be noted that, unless otherwise specified, embodiments and features in the embodiments of the present invention can be combined with each other. The present invention will now be described in detail with reference to the accompanying drawings and embodiments.

[0048] like Figure 1 As shown, Figure 1 This invention proposes a mineral screening system, comprising:

[0049] Acquisition module: Used to collect minerals from mineral raw materials;

[0050] Conveying module: Used to transport the collected minerals to the next processing module;

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

[0052] Magnetic separation module: Used to perform magnetic separation on graded minerals to separate 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 delivered 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] The feed inlet is used to receive minerals from the conveying module;

[0058] The dynamic stirring unit employs multiple cross-arranged stirring arms, each equipped with an adjustable nozzle to generate multi-directional and adjustable water flow in the water; thereby achieving thorough mixing of minerals and water and impacting impurities, thus improving cleaning efficiency.

[0059] The stratified settling zone is designed with multiple settling platforms of different heights. After the minerals are stirred in the water, they settle in layers on each platform according to their different densities, so as to more effectively separate impurities of different particle sizes.

[0060] Understandably, the above-mentioned water washing module can be supplemented with additional units, such as:

[0061] The high-efficiency filtration unit is characterized by the use of filter media with adjustable pore size, which automatically adjusts the pore size according to the different mineral particle sizes to achieve the best solid-liquid separation effect.

[0062] The water recycling unit is characterized by the recycling and reuse of filtered clean water, thereby reducing water consumption.

[0063] The wastewater treatment subunit is characterized by integrating physical and chemical treatment units to treat wastewater containing impurities so that it meets discharge standards or recyclability requirements.

[0064] Furthermore, the multi-directional water jetting and adjustability of the dynamic stirring device can be adjusted according to different mineral characteristics and cleaning requirements, improving cleaning efficiency. The multiple settling platforms in the stratified settling zone enable finer particle size separation, improving product purity. The adjustable pore design of the high-efficiency filter can adapt to minerals of different particle sizes, enhancing filtration effectiveness. The circulating water utilization system and wastewater treatment subsystem reduce water consumption and treat wastewater, improving the system's environmental performance.

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

[0066] A graded feed inlet is used to receive minerals from the washing module;

[0067] The grading sieve uses multiple stacked screens, each with 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 clogging.

[0069] The oversize collection unit is used to collect fine-grained minerals that pass through the sieve openings;

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

[0071] Understandably, the grading and screening module, through its multi-layered grading screen design, allows minerals to be screened on multiple different screen surfaces, thereby achieving finer particle size separation. Optimized design of the grading screen vibration device, such as employing variable frequency vibration or non-linear vibration modes, improves screening efficiency and quality. Automated design of the oversize and undersize material collection systems, such as using sensors and control systems, enables real-time monitoring and automatic adjustment of mineral particle size. The modular design of the grading module allows for rapid screen replacement based on different mineral characteristics and screening requirements, enhancing the system's flexibility and adaptability.

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

[0073] The material handling unit is used to remove minerals from mineral stockpiles or mines. It uses chain-type or bucket wheel-type material handling machines to adapt to different raw material storage conditions and material handling requirements.

[0074] The primary crushing unit is used to perform preliminary crushing of the extracted minerals to meet the requirements of subsequent conveying and screening equipment;

[0075] The feeding unit is used to uniformly feed the crushed minerals into the conveying module. It adopts a vibrating feeder to achieve uniform distribution of minerals and flow control.

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

[0077] It is understood that the acquisition module may also include a storage hopper for temporarily storing the minerals output from the feeding device. Its design may include a buffer function to balance the difference between the feeding speed and the conveying speed. Thus, the acquisition module, through the adjustability of the material handling device, such as adjustable material handling speed and range, can adapt to mines or raw material stockpiles of different sizes and types. The intelligent control system of the primary crushing device, such as using sensors to monitor mineral particle size and automatically adjusting the crusher's operating parameters based on particle size feedback, achieves optimal crushing results. Precise control of the feeding device, such as using frequency conversion technology and an intelligent control system, enables precise adjustment of the feeding speed and stable control of the mineral flow rate. The efficient design of the iron removal device, such as employing strong magnetic field or electromagnetic induction technology, improves the removal efficiency of iron impurities and reduces potential damage to downstream equipment. The buffering and flow control design of the storage hopper, such as using elastic baffles or rotary distributors, balances the speed difference between feeding and conveying, ensuring stable system operation.

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

[0079] The magnetic separator uses a high-gradient magnetic separator to achieve a high magnetic field separation effect;

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

[0081] A magnetic product collection system is used to collect magnetic minerals after magnetic separation. It achieves dust-free unloading of minerals through a rotary unloading valve or a pneumatic unloading valve.

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

[0083] Understandably, the high-gradient design of magnetic separators aims to improve separation efficiency and mineral recovery. The adaptability and adjustability of the magnetic separator's conveying system, such as the use of variable frequency speed control technology, are crucial to accommodate the conveying needs of minerals with different particle sizes. The automated design of the magnetic product collection system, employing sensors and control systems, enables real-time monitoring and automatic collection of magnetic minerals. Finally, the closed-loop design of the non-magnetic product discharge system minimizes mineral loss and environmental pollution during the discharge process.

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

[0085] In summary, this application provides a mineral screening system. By setting up a dynamic stirring unit and a stratified settling zone, the washing module can more effectively remove impurities from minerals, improving the cleaning effect and thus enhancing the quality of the final product. By setting up multiple stacked screens and a vibration unit, the grading screening module can effectively prevent screen clogging, improving the screening effect and thus increasing screening efficiency and output. By employing a high-gradient magnetic separator and a magnetic product collection system, the magnetic separation module can achieve better magnetic separation results, increasing the recovery rate of magnetic minerals and reducing resource waste. The entire mineral screening system has advantages such as high automation, simple operation, high efficiency, and low energy consumption, meeting various needs in the mineral processing process and improving production efficiency and economic benefits. The system design considers environmental protection requirements, reducing environmental pollution during mineral processing and conforming to the requirements of sustainable development. Through optimized module design and equipment configuration, this invention can adapt to different types and particle sizes of mineral raw materials, exhibiting wide applicability and flexibility. The system has low operation and maintenance costs, reducing the operating costs of mineral processing enterprises and enhancing their competitiveness. The mineral screening system of this invention improves mineral processing efficiency and product quality while reducing resource waste and environmental pollution, possessing significant social and economic importance.

[0086] Additionally, please refer to Figure 2 , Figure 2 This application provides a mineral screening method, the method comprising:

[0087] S1: Minerals are extracted from mineral raw materials;

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

[0089] S3: Minerals are subjected to impurity removal and grading screening;

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

[0091] This method, by optimizing each step of mineral screening, improves overall screening efficiency, reduces processing time, and thus increases production efficiency. Through meticulous grading and magnetic separation, this method can accurately separate minerals of different particle sizes and effectively separate magnetic minerals, improving product quality and purity. Improved module design reduces energy consumption and resource depletion, meeting energy conservation and emission reduction requirements. This method reduces environmental pollution and waste generation during mineral screening, aligning with environmental protection and sustainable development requirements. It is simple to operate and easy to control, lowering the skill requirements for operators and improving production safety. By improving screening efficiency and product quality, it reduces production costs and enhances the economic benefits for enterprises. This method is applicable to various types of mineral raw materials and can process minerals of different particle sizes and properties, demonstrating broad applicability.

[0092] In summary, this application provides a mineral screening system and method. The acquisition module utilizes the adjustability of the material handling device, such as adjustable material handling speed and range, to adapt to mines or raw material stockpiles of different sizes and types. The intelligent control system of the primary crushing device, such as using sensors to monitor mineral particle size and automatically adjusting the crusher's operating parameters based on particle size feedback, achieves optimal crushing results. Precise control of the feeding device, such as using frequency conversion technology and an intelligent control system, enables precise adjustment of the feeding speed and stable control of the mineral flow rate. The efficient design of the iron removal device, such as employing strong magnetic fields or electromagnetic induction technology, improves the removal efficiency of iron impurities and reduces potential damage to downstream equipment. The buffering and flow control design of the storage hopper, such as using elastic baffles or rotary distributors, balances the speed difference between feeding and conveying, ensuring stable system operation. The multi-directional water jetting and adjustability of the dynamic stirring device can be adjusted according to different mineral characteristics and cleaning requirements, improving cleaning efficiency. The design of multiple settling platforms in the stratified settling zone enables finer particle size separation and improves product purity. The adjustable pore design of the high-efficiency filtration device can adapt to minerals of different particle sizes, improving filtration efficiency. The circulating water utilization system and wastewater treatment subsystem reduce water consumption and treat wastewater, improving the system's environmental performance. The grading and screening module, through a multi-layer grading screen design, allows minerals to be screened on multiple different screen surfaces, achieving finer particle size separation. Optimized design of the grading screen vibration device, such as using variable frequency vibration or nonlinear vibration modes, improves screening efficiency and screening quality. Automated design of the oversize and undersize material collection system, such as using sensors and control systems, enables real-time monitoring and automatic adjustment of mineral particle size. The modular design of the grading module allows for quick screen replacement based on different mineral characteristics and screening requirements, improving system flexibility and adaptability. The high-gradient design of the magnetic separator improves magnetic separation efficiency and mineral recovery rate. The adaptability and adjustability of the magnetic separator conveyor, such as using variable frequency speed control technology, adapts to the conveying needs of minerals of different particle sizes. Automated design of the magnetic product collection system, such as using sensors and control systems, enables real-time monitoring and automatic collection of magnetic minerals. The closed-loop design of the non-magnetic product emission system reduces mineral loss and environmental pollution during the emission process.

[0093] Those skilled in the art will understand that embodiments of this application can be provided as methods, systems, or computer program goods. Therefore, this application can take the form of a completely hardware embodiment, a completely software embodiment, or an embodiment combining software and hardware aspects. Furthermore, this application can take the form of a computer program goods embodied on one or more computer-usable storage media (including, but not limited to, disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.

[0094] This application is described with reference to flowchart illustrations and / or block diagrams of methods, apparatus (systems), and computer program goods according to embodiments of this application. It will be understood that each block of the flowchart illustrations and / or block diagrams, and combinations of blocks in the flowchart illustrations and / or block diagrams, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, special-purpose computer, embedded processor, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, generate instructions for implementing the flowchart... Figure 1 One or more processes and / or boxes Figure 1 A device that provides the functions specified in one or more boxes.

[0095] These computer program instructions may also be stored in a computer-readable storage medium that can direct a computer or other programmable data processing device to function in a particular manner, such that the instructions stored in the computer-readable storage medium produce an article of manufacture including instruction means, which are implemented in a process Figure 1 One or more processes and / or boxes Figure 1 The function specified in one or more boxes.

[0096] These computer program instructions may also be loaded onto a computer or other programmable data processing equipment to cause a series of operational steps to be performed on the computer or other programmable equipment to produce a computer-implemented process, thereby providing instructions that execute on the computer or other programmable equipment for implementing the process. Figure 1 One or more processes and / or boxes Figure 1 The steps of the function specified 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 and not to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that modifications or equivalent substitutions can still be made to the specific implementation of the present invention. Any modifications or equivalent substitutions that do 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: Acquisition module: Used to collect minerals from mineral raw materials; Conveying module: Used to transport the collected minerals to the next processing module; Processing module: Used for impurity removal and grading of minerals; Magnetic separation module: used to perform magnetic separation on graded minerals to separate magnetic minerals; The processing module includes a water washing module and a grading and screening module; The water washing module is used to wash the delivered minerals to remove impurities; The grading and screening module is used to grade the washed minerals and separate minerals of different particle sizes. The water washing module specifically includes: The feed inlet is used to receive minerals from the conveying module; The dynamic stirring unit employs multiple cross-arranged stirring arms, each of which is equipped with an adjustable nozzle to generate multi-directional and adjustable water flow in the water. The stratified settling zone is designed with multiple settling platforms of different heights. After being stirred in the water, the minerals settle in layers on each platform according to their different densities. The hierarchical screening module specifically includes: A graded feed inlet is used to receive minerals from the washing module; The grading sieve uses multiple stacked screens, each with 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 clogging. The undersize collection unit is used to collect fine-grained minerals that pass through the sieve openings; The oversize discharge unit is used to discharge coarse-grained minerals that failed to pass through the sieve openings; The acquisition module specifically includes: The material handling unit is used to remove minerals from mineral stockpiles or mines. It uses chain-type or bucket wheel-type material handling machines to adapt to different raw material storage conditions and material handling requirements. The primary crushing unit is used to perform preliminary crushing of the extracted minerals to meet the requirements of subsequent conveying and screening equipment; The feeding unit is used to uniformly feed the crushed minerals into the conveying module. It adopts a vibrating feeder to achieve uniform distribution of minerals and flow control. The iron removal unit is used to remove iron impurities from the minerals during the feeding process to prevent damage to subsequent equipment; The magnetic separation module specifically includes: The magnetic separator uses a high-gradient magnetic separator to achieve a high magnetic field separation effect; A magnetic separator conveying device is used to transport minerals to the magnetic separator for magnetic separation. It uses a rubber belt conveyor or a vibrating conveyor to adapt to the conveying requirements of minerals of different particle sizes. A magnetic product collection system is used to collect magnetic minerals after magnetic separation. It achieves dust-free unloading of minerals through a rotary unloading valve or a pneumatic unloading valve. Non-magnetic product discharge system is used to discharge non-magnetic minerals after magnetic separation. It uses a closed conveyor or screw conveyor to reduce mineral loss and environmental pollution during the discharge process.

2. A mineral screening method, characterized in that, Applied to the mineral screening system as described in claim 1, the method comprises: Minerals are extracted from mineral raw materials; The collected minerals are then transported to the next processing module. The minerals are subjected to impurity removal and grading screening. The graded minerals are then subjected to magnetic separation to separate the magnetic minerals.

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