Zhaojin Group released the "Top Ten" research project

Zhaojin Group released the "Top Ten" key issues

1 Centralization of the Zhaoping fault zone

Research objectives: To solve the problem of metallogenic regularity in the middle of Zhaoping fault zone, to solve the problem of no major breakthrough in prospecting in the middle of Zhaoping fault zone, and strive to find large gold deposits in the middle of Zhaoping belt.

2 copper mining west luminance Dashankou COPPER Geological conditions of sandstone type and Prospecting Prediction

Research goal: Zhaojin Mining has large exploration rights in the west of Dashankou, Tonghui Mining, Xinjiang. By summarizing the ore-forming geological conditions and metallogenic regularity of Tonghui Mining, systematically studying the lithologic paleogeographic features within the exploration rights and searching for sandstone copper. The enrichment law of the mine, the ore-targeting area is delineated, and the project verification is carried out.

3 mining automation research

Research goal: With the development of mining to the deep, manual operations are difficult to adapt to the harsh deep working environment such as high ground pressure, high ground temperature, high dust, etc. Automated mining can greatly reduce downhole operators and even achieve unmanned mining, which is the future mining development. The inevitable trend, although equipped with some remote control equipment in line of sight, but far from the real automated mining, in the future will follow the "introduction - digestion - absorption - re-innovation" technical ideas to gradually carry out research work in mining automation .

4 Study on improving the comprehensive recovery rate of ore dressing in Gansu area

Research objectives: Early ditch Refractory Gold is mining enterprises in Gansu region, the ore is a fine grained disseminated ore, most of the gold in a micro-fine state occurs in pyrite, stibnite, arsenopyrite and other mineral crystals cracks or lattice, or in the state of inclusions, minerals containing arsenic, antimony, carbon and other harmful elements more minerals, metal Refractory ores. After years of technical research, the recovery rate of ore dressing has increased from the initial 50% to 82%. The next step is to improve the comprehensive recovery rate to over 90% through technical research.

Study on improving the recovery rate and concentrate grade of 5 drops of copper ore

Research goal: Xinjiang drip copper ore is a “three high” ore with high oxidation rate, high alkalinity and high mud content, and the ore composition minerals are complex, minerals have the characteristics of uneven fine grain inlay, and the ore recovery The rate and concentrate grade are lower. With the recovery of copper prices, the next step of the drip copper mine is to carry out technical research in the grinding process, flotation process and pharmaceutical system to stabilize the production of the enterprise, so that the recovery rate of ore dressing is over 82% and the concentrate grade is over 18%.

6 non-cyanide gold extraction technology research

Research goal: to replace the traditional gold immersion agent sodium cyanide with new gold extraction chemicals and processes, to control environmental pollution from the source, to achieve clean production, and to ensure the sustainable development of enterprises. Through the method of external cooperation, the study of leaching gold recovery rate by thiosulfate or other non-cyanide gold extraction reagents is carried out by means of comparative experiments. It is necessary to adapt to the complex diversity of the purchased gold concentrates in Jinmenting Gold Mine, and to ensure Sodium cyanide leaching similar recovery index.

Application and research of 7 cyanide tailings harmless treatment for comprehensive utilization of clean conversion

Research goal: multi-stage segmentation acidification, strong oxidant oxidative decomposition, multi-stage strong dehydration removal treatment, clean and convert it into leaching solution containing less than 0.45mg/L of cyanide, far lower than national solid waste discharge reactor Save the standard and achieve the goal of harmless treatment of comprehensive utilization of clean conversion.

Comprehensive recycling and research of 8 tailings (slag)

Research Objectives: Focus on scientific research in the aspects of comprehensive utilization of flotation tailings, reduction of tailings grade, and comprehensive recovery of valuable elements:

(1) Each mine gold flotation tailings contains various valuable elements such as gold, silver , copper, lead , zinc and iron, and studies the feasibility of its comprehensive utilization, maximizing the development and utilization of valuables in tailings. Resources.

(2) For the difficult-to-smelt mining enterprises, the focus is on the tailings of mining enterprises in Gansu, and carry out scientific research to reduce tailings grade and tailings re-election, and improve the recovery rate of ore dressing.

(3) Carry out research on comprehensive utilization of flotation tailings, which is used in building materials industry or other fields to realize the comprehensive utilization of tailings massification and marketization.

9 wet refining to improve the recovery rate of plutonium

Research objective: To carry out scientific research on the alkali leaching-electrowinning wet refining process, to solve the problem of low recovery rate of plutonium caused by low leaching rate, high concentration of electrolyzed lean liquid and high grade of filter cake. The content of antimony in gold concentrate is reduced to a reasonable range to avoid the impact of subsequent cyanide gold extraction on gold recovery rate, and achieve multi-element comprehensive recovery of low-grade niobium-containing concentrate. Through the research, the leaching rate reaches 95%, the electrolysis sputum concentration drops below 10g/L, and the filter cake grade falls below 0.5%.

10 comprehensive research on sewage treatment

Research objectives: The wastewater after the integrated flotation and the sewage produced by smelting are treated in different ways until recycling. In the process of water treatment, it can fully recover valuable elements, generate new materials, and create new benefits.

Project arrangement for the recruitment:

Face-to-face communication will be held with the guests at the 2017 (5th) China International Gold Mining Technology Summit Forum “Zhongjin Research Project Matching Salon”.

The 2017 (5th) China International Gold Mining Technology Summit Forum will focus on the “Responsibility and Mission” and will explore and mine deep-field resources in gold mines, using automation and information technology to optimize production, reduce costs and increase efficiency. Discussions on various aspects such as safety and environmental protection and green mine construction. Through the forum, it will effectively strengthen the further exchanges and interactions between domestic gold production enterprises and related service institutions at home and abroad, thus promoting technological innovation and transformation of domestic production enterprises.

Time: August 27-30, 2017

Location: Zhaoyuan City, Shandong Province, China

Organizers: China Gold Association, Zhaoyuan Gold Association, Shandong Zhaojin Group, Gold Industry Technology Innovation Strategic Alliance

Supporting units: World Gold Council, South African Embassy in China, Australian Mining and Exploration Company Association, China Mining Association, Chinese Academy of Geological Sciences, China University of Geosciences, Peking University, Central South University, Northeastern University, China Nonferrous Metals Industry Association Gold and Silver Branch, Beijing Research Institute of Mining and Metallurgy, China Enfei, China Ruilin, Changchun Gold Research Institute, Changchun Gold Design Institute, China International Mining Association, China Mining Area Environmental Governance and Remediation Industry Alliance, China Gold News.

Organizer: Shandong Zhaojin Group Co., Ltd.

Three Masters United International Exhibition (Beijing) Co., Ltd.

2017 China International Gold Mining Technology Summit Forum Draft

Sunday, August 27, 2017

09:30—18:00 Full day registration

Monday, August 28, 2017

08:30—18:00 First day of the meeting

Tuesday, August 29, 2017

08:30—18:00 The second day of the meeting

Wednesday, August 30, 2017

08:30-12:00 Mine Inspection

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