Introduction Photoelectric ore sorting technology is an emerging ore processing technology that uses optical property differences to sort ore, and is particularly suitable for the effective processing of low-grade ore resources. This article will discuss in detail the latest progress of photoelectric ore sorting technology and its application in the processing of low-grade ore resources. Overview of Photoelectric Ore Sorting Technology Photoelectric ore sorting technology is mainly based on the differences in the optical properties of minerals, such as color, gloss, transparency, etc., through the illumination of a light source of a specific wavelength, and with the help of high-precision photoelectric sensors to identify and separate different minerals. This technology has the advantages of fast sorting speed, no need to add chemical reagents, and green environmental protection, and is especially suitable for the purification of low-grade ores. Application of Photoelectric Ore Sorting Technology in the Processing of Low-grade Ore Resources Low-grade ores usually refer to those ores whose grades are not enough for direct use, and their grades need to be improved through mineral processing or other treatment methods. Photoelectric ore sorting technology can improve the feed grade before the ore is crushed or ground, thereby reducing the cost of mineral processing and the load of equipment. Advantages of Photoelectric Ore Sorting Technology High efficiency: Photoelectric sorting technology can quickly remove a large amount of useless gangue, reduce the pressure of subsequent mineral processing links, and improve sorting efficiency. Low cost: Compared with traditional physical mineral processing and chemical mineral processing, the power consumption cost of photoelectric mineral processing is about 1 yuan/ton, which is much lower than traditional methods. Green and environmental protection: Photoelectric ore dressing has zero pollution to the environment and is a greener ore dressing method. 10 Technological progress: With the development of artificial intelligence technology, the intelligence level of photoelectric sorting equipment has been continuously improved, and it can handle more types of ores. https://www.mdoresorting.com/mingde-ai-sorting-machine-separate-quartzmicafeldspar-from-pegmatite Specific applications As a leading enterprise in the ore photoelectric sorting industry, MINGDE Optoelectronics' ore sorting machines are widely used in metal and non-metallic minerals. Over the years, MINGDE Optoelectronics has been professionally researching ore sorting and has made breakthroughs in many technologies. Among them, the AI ​​intelligent ore sorting machine launched for the first time in China uses advanced deep convolutional neural network technology to extract ore surface features from multiple angles, greatly expanding the types of sorted ores and improving the accuracy of ore sorting, especially in the sorting of pegmatite-type quartz. Experiments have shown that MINGDE AI intelligent ore sorting machines are competent for all types of ore that can be identified by the naked eye. While ensuring the sorting accuracy, our company's heavy-duty machines have greatly improved the sorting output of ore, meeting the requirements of mining companies for large-scale ore sorting. https://www.mdoresorting.com/heavy-duty-ai-ore-sorting-machine-ore-sorter-mineral-separator-sorting-38cm-particles Future development of photoelectric ore sorting technology The future development of photoelectric ore sorting technology will focus on improving sorting accuracy and reliability, reducing costs, improving cost performance, and adapting to the sorting needs of more types and more complex ore structures. At the same time, photoelectric sorting technology will also be combined with other ore dressing technologies to form a more complete ore processing solution. Conclusion Photoelectric ore sorting technology has shown great potential in the processing of low-grade ore resources, which can effectively improve resource utilization, reduce ore dressing costs, and is beneficial to environmental protection. With the continuous advancement and innovation of technology, photoelectric ore sorting technology will play an increasingly important role in the mining field.  

Overview of photoelectric sorting technology Photoelectric sorting technology is a technology that uses optical principles to automatically identify and classify materials. It detects the optical properties of materials, such as color, gloss, transparency, etc., through photoelectric sensors, and then determines whether it has the required characteristics through preset intelligent algorithms, and performs corresponding separation processing. This technology is widely used in industries such as mining, agriculture, food processing, and waste material recycling, especially in improving sorting efficiency and accuracy, reducing labor intensity, and reducing environmental pollution. Working principle of photoelectric sorting technology The working principle of photoelectric sorting technology involves several key components: light source system, sensor system, signal processing system, and execution system. First, the light source system provides light of different wavelengths to illuminate the material to be detected, so that the reflected light presents different colors. The sensor system, usually a linear array CCD sensor, captures these lights and converts them into electrical signals. The signal processing system processes these electrical signals, analyzes the characteristics of the materials through image processing algorithms, and classifies them according to preset standards. Finally, the execution system sorts the sorted materials, usually by high-speed airflow or robotic arms to exclude defective products and retain high-quality products. Application of photoelectric sorting technology in mining In the mining field, photoelectric sorting technology is mainly used for pre-sorting of ore to improve the overall grade of ore and reduce the cost of subsequent processing. For example, in the process of phosphate ore sorting, photoelectric sorting technology can effectively identify and remove low-grade ore and debris, thereby improving the efficiency of mineral processing and reducing energy consumption. In addition, this technology can also be used to process phosphate resources with fine particle size and complex embedded morphology, so that resources that were originally difficult to develop and utilize economically and efficiently can be fully utilized. Advantages and challenges of photoelectric sorting technology The advantages of photoelectric sorting technology lie in its high precision, high efficiency and environmental protection characteristics. It can complete the sorting of a large number of materials in a short time without adding chemical reagents, reducing pollution to the environment. However, the technology also faces some challenges, such as adapting to the sorting needs of more types and complex ore structures, improving the stability and anti-interference ability of the system, and reducing costs. Future development of photoelectric sorting technology With the continuous advancement of technology, photoelectric sorting technology is expected to further improve recognition accuracy and stability in the future, expand the scope of application, and play a greater role in mining and other fields. For example, by combining technologies such as artificial intelligence and big data analysis, the photoelectric sorting system will become more intelligent and automated, and can better adapt to different working environments and sorting requirements. Application of MINGDE Optoelectronic Sorting Technology Hefei MINGDE Optoelectronic Technology Co., Ltd., as a leading enterprise in the field of mining sorting in China, has taken the lead in introducing artificial intelligence, big data sorting and other technologies in the field of ore photoelectric sorting, expanding the variety of ore sorting by photoelectric sorting machines, and making the sorting effect more accurate. The heavy-duty machine developed by the company can sort ores with larger particle sizes, which brings about greater output and meets the requirements of mining companies for large-scale ore sorting. https://www.mdoresorting.com/wet-intelligent-minerals-separator-ore-sorting-machine-leading-manufacturer-of-china Since its establishment in 2014, the company has been working hard in the field of ore sorting for ten years. The staff visited various mining areas in China on the spot, fully communicated with various mining companies, and deeply understood the various requirements of the mines for sorting equipment. The overall structure of the MINGDE sorting machine adopts a split structure to avoid the influence of feeding vibration on the main part of the machine sorting, ensuring the accuracy of sorting; using a conveyor belt instead of a chute reduces the trouble of frequent replacement of wearing parts of the chute machine. The whole machine is coated with an anti-corrosion coating, which improves the adaptability of the machine to the harsh working environment of high dust, high pollution and high corrosion in the mining industry. MINGDE Optoelectronic Technology Co., Ltd. has always believed that integrity makes MINGDE a success and MINGDE creates the best corporate mission. We are willing to work together with friends from all walks of life to achieve the long-term development of mining intelligence and automation.

Overview Pegmatite quartz refers to high-purity quartz formed in pegmatite. Pegmatite is a special granite rock, usually composed of coarse to huge quartz crystals. The quartz in these rocks usually has a larger crystal size and a lower impurity content. Formation process of pegmatite quartz The formation of pegmatite quartz is a complex process inside the earth, involving many geological processes such as magmatic activity, metamorphism, and tectonic movement. Next, we will discuss this process in detail from different angles. Magmatic activity and the formation of pegmatite quartz The formation of pegmatite quartz is closely related to magmatic activity. During the intrusion evolution of magma, due to changes in temperature, pressure and other conditions, hydrothermal fluids rich in SiO2 are differentiated. These hydrothermal fluids penetrate into the surrounding metamorphic rock system along the bedding and cracks, or invade along the contact fracture zone of the previous magmatic rock to form vein quartz ore bodies. Metamorphism and the formation of pegmatite quartz The hydrothermal fluid produced by regional metamorphism or mixed lithification is also an important factor in the formation of pegmatite quartz. Strong magmatic activity and tectonic movement provide heat sources for metamorphism. When water-containing igneous rocks and basement protoliths are metamorphosed, a large amount of water is released to form metamorphic hydrothermal fluids. These ore-bearing solutions migrate along the ductile shear zone under the action of tectonic stress. Due to changes in temperature and pressure conditions, SiO2 is supersaturated and deposited to form vein quartz. Tectonic environment and the formation of pegmatite quartz The formation of pegmatite quartz is closely related to a specific tectonic environment. For example, pegmatite deposits are formed in a stable tectonic environment at the top of granite, formed by the recrystallization of the surrounding granite and the decomposition of the mineral components that make up the granite. Details of the formation of pegmatite quartz The details of the formation of pegmatite quartz can be revealed by studying the fluid inclusions inside it. Fluid inclusion microscopic analysis shows that in the process of wall crystallization, the brine H2O-NaCL-KCL-(CO2,N2) type fluid (about 20wt.% NaCL and about 3wt.% KCL) is saturated, and in the process of magmatic hydrothermal crystallization, multiphase cassiterite mineralization forms large microcline crystals in the wall belt, and is combined with quartz, F-poor black mountain rock, and carbonate- and boron-rich manganese fluoroapatite in the core area. World distribution Pegmatite quartz is a high-quality quartz resource. Due to its special formation environment and purity, it has extremely important applications in industry and high-tech fields. The world-renowned pegmatite quartz resources are mainly distributed in the United States, Brazil, Canada, Australia and China. Among them, the Spruce Pine deposit in the United States is famous for its extremely low quartz impurity element content and excellent quality. It has long provided a large amount of high-purity quartz sand to the world. It is an important raw material for semiconductors, precision optical glass, photovoltaics, lighting and other industries. Spruce Pine Deposit, USA The Spruce Pine Deposit is located in western North Carolina, USA. It has a mining history of more than 100 years and is a globally recognized high-purity quartz sand raw material deposit. Its quartz sand products enjoy a very high reputation in the international market. Pegmatite Quartz Resources in Brazil Brazil is the world's largest country with high-purity quartz resources. Its ore type is mainly natural crystal, but due to mining facilities and ore quality, the actual mining and export volume is relatively small. Pegmatite Quartz Resources in Canada Canada's pegmatite quartz resources rank third in the world. The ore type is mainly vein quartz. The quality of its high-purity quartz resources is also very high, suitable as a raw material for high-purity quartz sand. Pegmatite Quartz Resources in China China's pegmatite quartz resources are mainly distributed in Henan, Xinjiang, Hubei, Jiangsu and other places. In recent years, mineral resources that can be used to extract ultra-high purity quartz sand have been discovered in the East Qinling-Dabie Orogenic Belt in Henan, showing huge prospecting potential. Pegmatite quartz resources in Australia Australia has abundant quartz resources, mainly distributed in northern Queensland, Victoria and Western Australia. The pegmatite quartz resources in these areas also provide the possibility for the production of high-purity quartz sand. Application fields of pegmatite quartz Pegmatite quartz has a wide range of applications in many fields due to its high purity and stability. The following are some of the main application areas:   Semiconductor industry: High-purity quartz is a key material for manufacturing semiconductor chips. It is used to make containers such as crucibles to ensure the purity of the chip manufacturing process. Fiber optic communication: Fiber optic is the infrastructure of modern communications, and high-purity quartz plays an important role in it because it can transmit high-speed optical signals without loss. Photovoltaic industry: In the manufacture of solar panels, high-purity quartz is used to make high-quality quartz glass, which is crucial to improving the efficiency of photoelectric conversion. Optical field: High-purity quartz is also used in precision optical devices. For example, in lenses and optical fibers, high-purity quartz is needed to ensure that the propagation of light is not disturbed. Electric light sources: In light bulbs and other electric light sources, high-purity quartz is used to make materials that are resistant to high temperatures and have good light transmittance. Building materials: Due to its strength and durability, pegmatite quartz is also used in building materials, such as in the production of and floor tiles. Jewelry industry: In some specific cases, pegmatite quartz may also be used in the jewelry industry, especially those quartz crystals with special optical effects. Purification technology of pegmatite quartz Pegmatite quartz usually has the characteristics of few impurities, stable quality, and low fluid inclusion content, so it has become an important raw material for the preparation of high-purity quartz sand. In recent years, with the rapid development of science and technology, especially in the fields of semiconductors, optical fiber communications, photovoltaics, etc., the demand for high-purity quartz sand has increased day by day. Therefore, the research and application of pegmatite quartz resources have received widespread attention. In recent years, with the advancement of science and technology, the sorting technology of pegmatite quartz has made significant progress, especially in the purification of high-purity quartz sand. Sorting equipment and technological progress The sorting equipment of pegmatite quartz mainly includes crushers, mills, screening machines, flotation machines, magnetic separators, etc. These equipment use different physical and chemical methods, such as mechanical crushing, grinding, gravity separation, flotation and magnetic separation, to separate quartz from other impurities. Crushing and grinding: Crushing equipment is used to crush raw quartz ore into small particles suitable for further processing. Commonly used crushing equipment includes jaw crushers, cone crushers and hammer crushers. Grinding is to further grind the ore through the grinding machine to achieve the ideal particle size distribution, in preparation for subsequent classification and flotation. Screening: Screening equipment such as spiral classifiers are used for particle classification and desludging processes. The particle size separation is achieved through the difference in the settling speed of particles of different sizes in the liquid. 8 Flotation: Flotation machines play a key role in the flotation process. By forming a large number of bubbles and using reagents to make the target minerals attached to the bubbles, it can be separated from other substances. 8 Magnetic separation: Magnetic separation equipment is used to remove iron-containing impurities from quartz sand. Commonly used magnetic separation equipment includes dry magnetic separators and wet magnetic separators. Photoelectric separation: Photoelectric separation is a method of identifying and separating the ore to be separated and the gangue by using the physical characteristics of the ore to be separated and the gangue. It uses a combination of mechanical and electrical separation to imitate the action of hand selection. The artificial intelligence sorting machine pioneered by Hefei Mingde Optoelectronics Technology Co., Ltd. is the first to introduce advanced technologies such as artificial intelligence and big data in the field of photoelectric mineral processing. It has obvious effects on the sorting of pegmatite quartz, with high sorting accuracy and large output. Latest research results The latest research results show that through the combined application of these equipment and technologies, high-purity quartz concentrate products can be obtained on a laboratory scale. For example, Zhengzhou Comprehensive Utilization Institute has successfully developed an original technology for processing and purifying high-purity quartz, and conducted laboratory sorting and purification experiments on granite pegmatite high-purity quartz ore, producing high-purity quartz concentrate products with SiO2 purity as high as 5N2 (99.9992%). Conclusiona In summary, pegmatite quartz is an extremely important mineral resource, and its application in high-tech industries is indispensable. With the advancement of technology and the increasing demand for high-purity materials, the mining and utilization of pegmatite quartz will become more extensive, and it will also have a profound impact on the development of related industr Overview Pegmatite quartz refers to high-purity quartz formed in pegmatite. Pegmatite is a special granite rock, usually composed of coarse to huge quartz crystals. The quartz in these rocks usually has a larger crystal size and a lower impurity content. Formation process of pegmatite quartz The formation of pegmatite quartz is a complex process inside the earth, involving many geological processes such as magmatic activity, metamorphism, and tectonic movement. Next, we will discuss this process in detail from different angles. Magmatic activity and the formation of pegmatite quartz The formation of pegmatite quartz is closely related to magmatic activity. During the intrusion evolution of magma, due to changes in temperature, pressure and other conditions, hydrothermal fluids rich in SiO2 are differentiated. These hydrothermal fluids penetrate into the surrounding metamorphic rock system along the bedding and cracks, or invade along the contact fracture zone of the previous magmatic rock to form vein quartz ore bodies. Metamorphism and the formation of pegmatite quartz The hydrothermal fluid produced by regional metamorphism or mixed lithification is also an important factor in the formation of pegmatite quartz. Strong magmatic activity and tectonic movement provide heat sources for metamorphism. When water-containing igneous rocks and basement protoliths are metamorphosed, a large amount of water is released to form metamorphic hydrothermal fluids. These ore-bearing solutions migrate along the ductile shear zone under the action of tectonic stress. Due to changes in temperature and pressure conditions, SiO2 is supersaturated and deposited to form vein quartz. Tectonic environment and the formation of pegmatite quartz The formation of pegmatite quartz is closely related to a specific tectonic environment. For example, pegmatite deposits are formed in a stable tectonic environment at the top of granite, formed by the recrystallization of the surrounding granite and the decomposition of the mineral components that make up the granite. Details of the formation of pegmatite quartz The details of the formation of pegmatite quartz can be revealed by studying the fluid inclusions inside it. Fluid inclusion microscopic analysis shows that in the process of wall crystallization, the brine H2O-NaCL-KCL-(CO2,N2) type fluid (about 20wt.% NaCL and about 3wt.% KCL) is saturated, and in the process of magmatic hydrothermal crystallization, multiphase cassiterite mineralization forms large microcline crystals in the wall belt, and is combined with quartz, F-poor black mountain rock, and carbonate- and boron-rich manganese fluoroapatite in the core area. World distribution Pegmatite quartz is a high-quality quartz resource. Due to its special formation environment and purity, it has extremely important applications in industry and high-tech fields. The world-renowned pegmatite quartz resources are mainly distributed in the United States, Brazil, Canada, Australia and China. Among them, the Spruce Pine deposit in the United States is famous for its extremely low quartz impurity element content and excellent quality. It has long provided a large amount of high-purity quartz sand to the world. It is an important raw material for semiconductors, precision optical glass, photovoltaics, lighting and other industries. Spruce Pine Deposit, USA The Spruce Pine Deposit is located in western North Carolina, USA. It has a mining history of more than 100 years and is a globally recognized high-purity quartz sand raw material deposit. Its quartz sand products enjoy a very high reputation in the international market. Pegmatite Quartz Resources in Brazil Brazil is the world's largest country with high-purity quartz resources. Its ore type is mainly natural crystal, but due to mining facilities and ore quality, the actual mining and export volume is relatively small. Pegmatite Quartz Resources in Canada Canada's pegmatite quartz resources rank third in the world. The ore type is mainly vein quartz. The quality of its high-purity quartz resources is also very high, suitable as a raw material for high-purity quartz sand. Pegmatite Quartz Resources in China China's pegmatite quartz resources are mainly distributed in Henan, Xinjiang, Hubei, Jiangsu and other places. In recent years, mineral resources that can be used to extract ultra-high purity quartz sand have been discovered in the East Qinling-Dabie Orogenic Belt in Henan, showing huge prospecting potential. Pegmatite quartz resources in Australia Australia has abundant quartz resources, mainly distributed in northern Queensland, Victoria and Western Australia. The pegmatite quartz resources in these areas also provide the possibility for the production of high-purity quartz sand. Application fields of pegmatite quartz Pegmatite quartz has a wide range of applications in many fields due to its high purity and stability. The following are some of the main application areas: Semiconductor industry: High-purity quartz is a key material for manufacturing semiconductor chips. It is used to make containers such as crucibles to ensure the purity of the chip manufacturing process. Fiber optic communication: Fiber optic is the infrastructure of modern communications, and high-purity quartz plays an important role in it because it can transmit high-speed optical signals without loss. Photovoltaic industry: In the manufacture of solar panels, high-purity quartz is used to make high-quality quartz glass, which is crucial to improving the efficiency of photoelectric conversion. Optical field: High-purity quartz is also used in precision optical devices. For example, in lenses and optical fibers, high-purity quartz is needed to ensure that the propagation of light is not disturbed. Electric light sources: In light bulbs and other electric light sources, high-purity quartz is used to make materials that are resistant to high temperatures and have good light transmittance. Building materials: Due to its strength and durability, pegmatite quartz is also used in building materials, such as in the production of and floor tiles. Jewelry industry: In some specific cases, pegmatite quartz may also be used in the jewelry industry, especially those quartz crystals with special optical effects. Purification technology of pegmatite quartz Pegmatite quartz usually has the characteristics of few impurities, stable quality, and low fluid inclusion content, so it has become an important raw material for the preparation of high-purity quartz sand. In recent years, with the rapid development of science and technology, especially in the fields of semiconductors, optical fiber communications, photovoltaics, etc., the demand for high-purity quartz sand has increased day by day. Therefore, the research and application of pegmatite quartz resources have received widespread attention. In recent years, with the advancement of science and technology, the sorting technology of pegmatite quartz has made significant progress, especially in the purification of high-purity quartz sand. Sorting equipment and technological progress The sorting equipment of pegmatite quartz mainly includes crushers, mills, screening machines, flotation machines, magnetic separators, etc. These equipment use different physical and chemical methods, such as mechanical crushing, grinding, gravity separation, flotation and magnetic separation, to separate quartz from other impurities. Crushing and grinding: Crushing equipment is used to crush raw quartz ore into small particles suitable for further processing. Commonly used crushing equipment includes jaw crushers, cone crushers and hammer crushers. Grinding is to further grind the ore through the grinding machine to achieve the ideal particle size distribution, in preparation for subsequent classification and flotation. Screening: Screening equipment such as spiral classifiers are used for particle classification and desludging processes. The particle size separation is achieved through the difference in the settling speed of particles of different sizes in the liquid. 8 Flotation: Flotation machines play a key role in the flotation process. By forming a large number of bubbles and using reagents to make the target minerals attached to the bubbles, it can be separated from other substances. 8 Magnetic separation: Magnetic separation equipment is used to remove iron-containing impurities from quartz sand. Commonly used magnetic separation equipment includes dry magnetic separators and wet magnetic separators. Photoelectric separation: Photoelectric separation is a method of identifying and separating the ore to be separated and the gangue by using the physical characteristics of the ore to be separated and the gangue. It uses a combination of mechanical and electrical separation to imitate the action of hand selection. The artificial intelligence sorting machine pioneered by Hefei Mingde Optoelectronics Technology Co., Ltd. is the first to introduce advanced technologies such as artificial intelligence and big data in the field of photoelectric mineral processing. It has obvious effects on the sorting of pegmatite quartz, with high sorting accuracy and large output. Latest research results The latest research results show that through the combined application of these equipment and technologies, high-purity quartz concentrate products can be obtained on a laboratory scale. For example, Zhengzhou Comprehensive Utilization Institute has successfully developed an original technology for processing and purifying high-purity quartz, and conducted laboratory sorting and purification experiments on granite pegmatite high-purity quartz ore, producing high-purity quartz concentrate products with SiO2 purity as high as 5N2 (99.9992%). Conclusiona In summary, pegmatite quartz is an extremely important mineral resource, and its application in high-tech industries is indispensable. With the advancement of technology and the increasing demand for high-purity materials, the mining and utilization of pegmatite quartz will become more extensive, and it will also have a profound impact on the development of related industries.