1. Definition of Green Mining Green mining is a new mining development model that emphasizes the efficient use of resources, environmental protection and harmonious development of the community during the development of mineral resources. This model not only focuses on the economic value of mineral resources, but also pays attention to minimizing the impact and damage to the ecological environment, and strives to achieve harmonious coexistence between mining and the natural environment. 2. The connotation of green mining culture Green mining culture is not only a production method, but also a new concept and cultural form of mining development. It includes the following aspects: 1） Green mining spirit: refers to the values and behavioral norms upheld by mining companies under the guidance of modern ecological civilization concepts, emphasizing scientific and orderly mining methods and the protection of the ecological environment. 2） Green mining concept: that is, in the process of mineral resource development, achieve a balance between effective resource utilization and environmental protection, and advocate sustainable development. 3） Green mine construction: involves multiple links such as mine planning, design, construction, and operation, aiming to achieve the coordination and unity of mineral resource development and environmental protection. 4） Green mining development: Integrate the concept of green development into all aspects of mineral resource exploration, mining, processing, management and land reclamation in mining areas to promote efficient resource utilization and maximize environmental protection. 3. The Importance of Green Mining The importance of green mining is reflected in the following aspects: 1) Sustainable use of resources: Green mining emphasizes the rational development and utilization of mineral resources. Through scientific exploration and reasonable mining strategies, the service life of mineral resources can be extended to achieve sustainable use of resources. 2) Environmental protection: Traditional mining is often accompanied by serious environmental damage, such as land degradation, water pollution, etc. Green mining reduces damage to the ecological environment, protects biodiversity, and maintains ecological balance by adopting environmental protection technologies and management measures. 3) Energy conservation and emission reduction: Green mining advocates energy conservation and emission reduction, and by optimizing production processes and improving energy efficiency, it reduces greenhouse gas emissions and energy consumption, which helps to address global climate change. 4) Improved economic benefits: Green mining can improve the economic benefits of enterprises by improving resource utilization and reducing production costs. At the same time, green products are more popular in the market, which is conducive to opening up new markets and increasing competitiveness. 5) Fulfillment of social responsibilities: While pursuing economic benefits, enterprises also need to assume social responsibilities. The implementation of green mining helps enterprises establish a good social image, enhance public trust, and promote social harmony. 6) Policy support and market opportunities: Many countries have introduced policies to support the development of green mining, providing policy support and market opportunities for green mining. Enterprises can actively participate in the development of green mining, seize policy dividends and open up new market space. 7) Driven by technological innovation: The development of green mining has promoted technological innovation, prompted enterprises to develop more environmentally friendly and efficient production technologies and equipment, and promoted the development of mining towards intelligent and green directions. In addition, green mining is also quite rewarding for the company's development. 1) The relationship between green image enhancement and shareholder value. In the process of improving their green image, mining companies can not only gain better social reputation and brand image, but also improve shareholder value to a certain extent. The improvement of green image helps to attract more investors and consumers, which may increase the market value and stock price performance of enterprises. Studies have shown that enterprises that implement environmental protection measures can often reduce the risk of environmental accidents, reduce related legal proceedings and fines, thereby improving profitability and having a positive impact on shareholder value. 2) The relationship between green image enhancement and corporate competitiveness. Improving a green image can enhance a company's market competitiveness. By promoting green development, companies can create a good image and enhance their sense of social responsibility. Green companies can not only gain recognition from the government and the public, but also attract more attention from consumers and investors, thereby gaining huge market opportunities. 3) The relationship between green image enhancement and financing costs. Improving the green image helps reduce the financing costs of enterprises. Green project financing usually gives enterprises lower interest rates and longer repayment periods to encourage them to invest in environmental protection and sustainable development. In addition, green financial products such as green bonds and green leasing can also provide enterprises with more financing channels and lower-cost financing solutions. 4) Green image promotion and environmental policy impact. As environmental protection policies become increasingly stringent, companies need to actively respond to environmental protection requirements,strengthen environmental awareness, increase environmental protection investment, and improve the company's environmental protection level. This will not only help companies reduce environmental risk exposure, but also create shareholder value for the company. 5) The relationship between green image enhancement and socially responsible investment. Corporate social responsibility has an important impact on shareholder value. One of the core elements of corporate social responsibility is environmental protection. In the process of production and operation, enterprises should comply with environmental laws and regulations, reduce pollution emissions, save resources, etc.Through effective environmental protection measures,enterprises can reduce environmental risks, enhance brand image, and thus increase the trust and recognition of shareholders. In summary, the returns of green mining to society and mining companies are reflected in various aspects. For society, green mining realizes the sustainable use of resources and environmental protection, and achieves both economic and environmental benefits. For mining companies, the improvement of green image has achieved the following: increasing shareholder value, enhancing market competitiveness, reducing financing costs, actively responding to environmental policies, and strengthening the combination with socially responsible investment. These factors interact with each other and jointly promote the sustainable development of mining companies in the green transformation, and bring greater value to shareholders and society. 4. How mining companies can improve their green image? Mining companies enhance their green image mainly by adopting environmentally friendly technologies, optimizing production processes, strengthening environmental governance and actively participating in social responsibility activities, so as to reduce their impact on the environment, improve resource utilization efficiency and achieve sustainable development, thereby winning recognition and support from all sectors of society. 1) Production process improvement and environmental protection. (1) Adopt green mining technology: Apply environmentally friendly, energy-saving and efficient mining methods and technologies to reduce damage to the environment,such as Digital electronic detonator smooth surface blasting technology,optoelectronic sorting technology etc. (2) Wastewater and waste gas treatment: Establish wastewater and waste gas treatment systems to ensure that emissions meet standards and reduce pollution to the environment,such as dry dust collection process,return water treatment system and water quality online monitoring system,etc. (3) Ecological restoration:Carry out vegetation restoration and land reclamation to repair the ecosystem damaged by mining activities. (4) Resource recycling:Reuse waste residues, waste heat, waste oil and waste rock as resources to reduce waste generation, for example, building tailings ponds for mountain backfill and construction aggregates. 2) Social Responsibility and Public Communication Mining companies can establish a good corporate citizen image by actively participating in social welfare activities and strengthening communication and cooperation with local communities. For example, by establishing environmental protection education centers, carrying out environmental education, and supporting local economic development, they can enhance their ties with society and improve their social reputation. 3) Green Finance and Capital Market (1) Green credit and bonds: Guide green credit, green bonds and other green financial instruments to support high-quality mining projects and important resource bases. (2) ESG investment and financing concepts: Improve awareness of ESG, incorporate it into the investment decision-making process, and improve ratings.

Recently, the attention to titanium alloys has increased again. As a key raw material for the production of titanium alloys, titanium sponge can be used to manufacture products in aerospace, national defense, chemical industry, consumer electronics and other fields. Due to its excellent physical and chemical properties, titanium sponge occupies a pivotal position in the demand for high-performance materials. The main producing countries of titanium sponge include the United States, Russia, China, Japan, Ukraine, Kazakhstan, etc. Among them, China is the world's largest producer of titanium sponge, and its output accounts for 62.7% of the global total output. The United States and Russia are also important producers of titanium sponge. Although their output is not as good as that of China, they occupy an important position in the high-end market. Japan and Ukraine occupy a certain share in the production of titanium sponge. In recent years, China has made significant progress in the research of ultra-soft titanium sponge. After years of hard work, Panzhihua Iron and Steel Research Institute Co., Ltd. of Panzhihua Iron and Steel Group has successfully developed ultra-soft titanium sponge suitable for the aviation field, breaking the monopoly of foreign technology and providing key material support for the country's aviation industry. The market status of titanium sponge shows that the global output of titanium sponge will be 279,000 tons in 2022, a year-on-year increase of 14.6%. China's titanium sponge production accounts for 62.7% of the world's total production. China's titanium sponge market concentration is relatively high. In 2019, Pangang Titanium's titanium sponge production accounted for 22.4% of the country's titanium sponge production. Luoyang Shuangrui Wanji, Guizhou Zun Titanium, Chaoyang Parkson, and Chaoyang Jinda's titanium sponge production accounted for 18.9%, 14.6%, 11.8%, and 10.4% of the country's titanium sponge production, respectively. By analyzing the impurities in titanium sponge and the requirements for sorting accuracy, and referring to the feasibility of other sorting equipment on the market, the equipment that can not only sort out foreign matter in titanium sponge, but also meet the requirements of sorting particle size, sorting accuracy, and production site is the AI ​​artificial intelligence sorting machine of Mingde Optoelectronics. First of all, the AI artificial intelligence sorting machine can establish an identification model based on the materials to be sorted. If new materials to be identified are added, they can be added through training in the later stage. It can simultaneously identify multiple foreign objects and accurately separate them; the equipment can currently support the sorting of materials with a particle size of more than 3mm, and the equipment has been mature and applied in large quantities in the field of ores, which can fully meet the sorting requirements of titanium sponge. https://www.mdoresorting.com/ai-intelligent-mineral-ore-sorting-machine Deep identification, high precision. Mingde Optoelectronics Artificial Intelligence Sorting Machine is equipped with AI artificial intelligence technology and human eye recognition module, which can comprehensively and deeply identify material characteristics, realize real-time material analysis, and have high recognition accuracy. It can also train and learn new material types through learning mode to further improve the overall sorting effect. High-speed collaborative stable system, large output. The modules of the ore sorting machine run at high speed, and each functional area operates efficiently and collaboratively. The whole machine runs stably and strongly, and the ore sorting is done in one go, achieving greater output. Multi-dimensional analysis technology, significant effect. From the multi-dimensional identification of the texture, color, shape, texture, etc. of the material to be sorted, the ore positioning algorithm, adaptive algorithm, precise material center, and precise blowing positioning, the accuracy of the rejection system is improved, and the sorting effect is good. Master the core technology and the application range of mineral processing is wide. The sorting machine uses the advantages of advanced technology to realize the gradual upgrading of mineral processing technology. Its application range is wide, solving the problem of complex structure and low utilization rate of various materials.

As we all know, mineral resources are the pillar of national infrastructure. During the mining process, most ores exist in the state of mineral and gangue coexistence. Only after a series of processing procedures can usable minerals be obtained. Before the ore can be effectively used, it needs to be crushed and dissociated, and then enriched by the corresponding mineral processing method. The so-called dissociation degree of a certain mineral is the ratio of the number of particles of the mineral monomer dissociated to the sum of the number of intergrowth particles containing the mineral and the number of particles of the mineral monomer dissociated. First, the block ore particles change from large to small, and various useful minerals are dissociated by reducing the particle size. First, in the crushing process, some of the various minerals that were originally intergrowthed together crack along the mineral interface and become particles containing only one mineral, which we call monomer dissociated particles, but there are still some small mineral particles that contain several minerals intergrowthed together, which are called intergrowth particles. Over-crushing mainly refers to the use of excessive grinding to achieve the full dissociation of useful minerals. In this process, more fine particles that are difficult to select are produced, that is, the phenomenon of "over-crushing" occurs. Over-crushing not only affects the grade and recovery rate of the concentrate during the selection process, but also increases the consumption of the grinding and selection process due to unnecessary crushing, resulting in increased beneficiation costs. The main hazards of over-crushing are: an increase in useful fine particles that are difficult to recover, low concentrate grade and recovery rate, increased machine loss, reduced unit time capacity, and increased useless power consumption of crushed ore. From the perspective of mineral structure, except for a few extremely coarse-grained ores that can obtain a considerable number of monomer dissociated particles after crushing, most ores must be ground to obtain a relatively high degree of dissociation. Ore crushing and grinding are too coarse and the degree of dissociation is insufficient, and too fine will cause equipment wear and increased consumption. Too coarse or too fine will lead to low concentrate grade and recovery rate. Therefore, appropriate grinding fineness is a necessary condition for achieving good separation of useful minerals and gangue minerals. Mineral processing workers should pay attention to the selection of crushing processes and equipment, strictly control the operating conditions, and strictly control the grinding fine powder within the optimal range determined by the mineral processing test. After some ores are crushed, there will be a certain proportion of low-economic-grade tailings or waste rocks with good dissociation. If such ores enter the subsequent grinding, it will directly affect the concentrate recovery and power consumption cost. Some concentrators adopt the method of early disposal and early selection to discard these useless tailings, which can not only release the production capacity of the concentrator, but also reduce the discharge of tailings after fine grinding, reduce solid mineral waste, and extend the service life of the tailings pond. As a company specializing in the research and development and production of ore sorting equipment, the photoelectric mineral processing products launched by MINGDE Optoelectronics are mainly used in the pre-sorting and pre-discarding of lump ores. According to the different degrees of dissociation of the ore, it can be used for ore sorting within the range of 0.3-15cm; it is suitable for sorting ores with different characteristics such as color, texture, texture, shape, gloss, shape, density, etc. The types of ores currently used by the equipment include fluorite, talc, wollastonite, calcium carbonate, gold mine, brucite, magnesite, silicon slag, pebbles, silica, phosphate rock, coal gangue, sponge titanium, monocrystalline silicon, lithium mica, spodumene, barite, pegmatite, tungsten tailings, coal-based kaolin and other minerals. MINGDE Optoelectronics can provide professional sorting equipment and solutions for ore sorting problems!