Core Viewpoint - The article discusses the tragic accident involving six students from Northeast University at the China National Gold Group's Inner Mongolia mining facility, focusing on the responses from the mining department regarding safety concerns related to the flotation process and the properties of the slurry involved in the incident [1]. Group 1: Safety Concerns - The flotation machine is designed to minimize mechanical hazards, with the motor and components structured to prevent injuries [3]. - The slurry from the Ulan Copper Molybdenum Mine has been tested multiple times and found to contain no toxic substances, with the pH maintained around 9 using an 8% lime slurry [4]. - The flotation agents used are classified as safe and environmentally friendly, with specific concentrations detailed for each agent [4][5][6][7][8]. Group 2: Slurry Temperature - The flotation process operates at normal temperatures, with no heating facilities added, and the slurry temperature has been monitored to range between 23.2°C and 31.4°C [9]. - The temperature is crucial for flotation efficiency and product quality, but the current process does not induce any significant heat, aligning with the monitored data [9].

Core Viewpoint - The tragic drowning of six students during a visit to a flotation process at a mining facility has raised significant concerns about safety management practices in the industry [1][2]. Industry Overview - Flotation method is a well-established technique in the non-ferrous metal mining sector, with flotation machines being commonly used across the industry [1]. - The flotation process involves crushing and grinding ore into smaller particles, which are then mixed with reagents to separate metals from the ore [1]. Incident Details - The incident occurred on July 23, when the students fell into a flotation tank due to the collapse of a grating board [1]. - The flotation equipment at the involved copper-molybdenum mine is described as relatively large, with particularly large flotation tanks [1]. Safety Concerns - Industry insiders expressed disbelief at the occurrence of such an accident, noting that it is extremely rare and previously unheard of [2]. - Standard safety protocols exist for personnel working near flotation machines, including wearing safety helmets and maintaining distance from certain areas [2]. - The incident has prompted discussions about potential oversights in safety management practices at the involved company, possibly due to the rarity of such accidents [2].

Core Viewpoint - The development of flotation equipment in China has transitioned from following international trends to leading innovations, with significant contributions from industry leaders like Shen Zhengchang. The focus is now on accelerating the digital and intelligent transformation of flotation equipment through advanced technologies like artificial intelligence [1][6]. Group 1: Flotation Technology Overview - Flotation is a method for separating valuable minerals from ores based on their surface properties, with historical roots in ancient gold and silver processing [2][5]. - The global flotation technology has evolved significantly, with approximately 90% of non-ferrous metals and 50% of ferrous metals processed using flotation methods today [2]. Group 2: Historical Development of Flotation Equipment - China's flotation equipment development began in the mid-20th century, initially imitating Soviet designs before moving to independent research and development in the 1970s [5][6]. - The first large flotation machine with independent intellectual property rights was successfully tested in 2001, marking a shift from following to competing on an equal footing with international standards [5][6]. Group 3: Current Achievements and Innovations - By 2010, China had developed flotation machines of 200 and 320 cubic meters, breaking the monopoly of Western countries on large flotation equipment [6]. - China is now a leader in the development of flotation machines, having created the world's largest flotation machines of 680 and 800 cubic meters, and new devices utilizing fluidization principles for resource efficiency [6][11]. Group 4: Challenges and Future Directions - The increasing demand for mineral resources and the depletion of high-grade ores necessitate continuous innovation in flotation technology to improve efficiency and sustainability [7][11]. - The transition to larger flotation machines involves complex challenges, including maintaining similar fluid dynamics within larger volumes to ensure effective mineral separation [8][11]. Group 5: International Expansion and Recognition - Chinese flotation machines have been exported to numerous countries, overcoming initial skepticism regarding their reliability and performance compared to foreign equipment [9][10]. - The success of these machines in international markets has been bolstered by the demonstration of their efficiency and cost-effectiveness [10]. Group 6: Technological Transformation and Industry Integration - The future of flotation equipment lies in digitalization, information technology, and intelligent systems, with a focus on enhancing operational efficiency and reducing resource consumption [11][12]. - The integration of technological innovation with industry practices is essential for achieving high-quality development in flotation technology [15].

Core Insights - The exhibition "UGOL ROSSII & MINING 2025" will take place from June 3-6, 2025, in New Kuznetsk, organized by Kuzbass Fair and supported by Beijing Shengruida International Exhibition Co., Ltd [1] - The event, established in 1993, has grown significantly, with the 2024 edition featuring 100,000 square meters of exhibition space, 841 companies, and 60,000 attendees, showcasing its industry influence [3] - The upcoming exhibition is expected to attract over 1,200 companies from more than 30 countries, covering a 100,000 square meter area, highlighting advancements in mining technology and equipment [5] Exhibition Highlights - The exhibition will present a comprehensive range of mining technologies and equipment, focusing on: 1. Core mining equipment, including intelligent coal mining machines and hydraulic supports, emphasizing efficiency and safety in coal mining [5] 2. Innovations in mineral processing technology, showcasing complete solutions from raw ore processing to concentrate production [5] 3. Green development solutions, featuring coal washing and processing technologies, as well as ecological restoration techniques [5] 4. Intelligent safety systems, including explosion-proof electrical equipment and 5G remote monitoring systems, to enhance mining safety [5] 5. Cutting-edge technological breakthroughs, such as the global launch of a digital management platform for mines and a 5G+AI real-time monitoring system [5] Market Opportunities - The ongoing geopolitical situation has altered procurement patterns, presenting opportunities for Chinese companies to enter the Russian-speaking market with high-cost performance equipment [7] - The exhibition serves as a platform for companies to connect with Russian buyers and explore a trillion-level market [7] - "UGOL ROSSII & MINING 2025" is positioned as both a technological showcase and an ecological collaboration opportunity for industry peers [7]

石英选矿工艺关键步骤决定其选矿设备种类，并将其选矿设备组成生产线。 统观所有的选矿工艺都是先破 碎，再研磨，然后再经过磁选机、浮选机的分选、分离，最后在进行浓缩、烘干，虽然会因具体的实际情况而不 尽相同，但是归结为 关键的选矿步骤一定是破碎、研磨、分选（提纯）、浓缩 ，石英石选矿工艺也是围绕这几 个步骤来对石英矿进行分选、提纯的。 01 破碎工艺 - 破碎种类 采用颚破、圆锥破等破碎设备组成破碎生产环节，对石英矿进行破碎处理到一定的粒度，其石英矿粒度能达 到25mm，恰好是下一步石英矿球磨机进行研磨作业的进料粒度（当然破碎粒度低于25mm更好，越有益于研磨 作业）； 我国的石英矿产丰富，分为石英、鳞石英、白矽石三大类，工业中采用多种石英矿选矿工艺来对其进行提 纯、加工，进而形成石英石、石英砂等，加工后得到的石英石、石英砂外观呈多棱形、球状， 具有较高的机械强 度、强大的截污能力、耐酸性能优等特点 ，被广泛应用在各个工业领域中。 在生产中，常用的石英砂选矿工艺主要有洗矿脱泥法、磁选法、浮选法和酸洗法 ，具备批量生产、提纯度 高、效率快等优势。下面为大家详细介绍石英矿具体的选矿工艺，需要配置的选矿设备类型，以及如 ...