"Western Mine Sample" for Green Mine Construction

In Qinghai Province 831 types of mining enterprises, eight mining enterprises have been listed as national green mining pilot units, and two mining enterprises in the territory of Qinghai Western Mining's entire list, namely Western Mining tin iron mountain Branch Haisai Shen Tong, copper and green industry limited liability company, two mining enterprises through years of green mine construction, mine ecological protection, resource and energy conservation, recycling utilization, improve production technology and other aspects have made outstanding achievements and become the Qinghai green mines A model of construction and ecological protection.

On August 24th, the Ministry of Land and Resources of Qinghai Province and the Haixi Government jointly hosted the “Advanced Technology Promotion and Application of Mineral Resources Comprehensive Utilization Demonstration Base and Green Mine Construction Site Meeting”. The Xitieshan Branch and the Saishtang Copper Industry made a key exchange speech on the construction of green mines at the conference. Thoughts for the Government, Ministry of Land and Planning Division, Qinghai Provincial Department of Land and departments at all levels responsible comrades and 51 provincial enterprises and institutions responsible for more than 120 people in the western mining tin Tieshan lead zinc ore field has been the scene to observe, learn Further understanding of the conservation and comprehensive utilization of mineral resources in the western region and the construction of green mines.

Based on the plateau to open the pace of green mine construction

The Western Mining Tin Tieshan Lead-Zinc Mine and the Qinghai Saishtang Copper Mine are located in Haixi and Hainan Prefectures of Qinghai Province respectively. They are located in the Gobi Desert and the grasslands, with an altitude of more than 3,000 meters. Almost no trees were seen before. Under such circumstances that the environmental basic conditions are poor, the colored market environment is not good, and the enterprise benefits are sluggish, the two mines still choose to take the road of green mine construction, and they are respectively rated as the second batch of national-level green mine construction demonstration units and The third batch of national green mine demonstration units.

At the beginning of the construction of green mines, the West Mining Tin Tieshan Branch has invested more than RMB 40 million in technological transformation of three flotation series of the plant; invested more than RMB 40 million to carry out digital mine construction in the aspects of organization and production management, and completed mine safety hedging. The “Six Systems” project has built a functional data management platform for business systems such as finance, cost, production and sales, and started the construction of the OA system and comprehensively upgraded it. In particular, through the scientific research and technological transformation projects such as the “Xi Tieshan Lead and Zinc Beneficiation Tailings Recovery Experimental Study”, the economic, ecological and social benefits of developing mineral resources have been maximized. In 2013, a new tailings pond was built to reduce the impact of wastewater infiltration on the soil. Construction of underground water storage and seepage prevention works, after sedimentation and purification, used for production, greening, cleaning of workshops, etc., while doing process control, all pollution control and abatement greening facilities are operated simultaneously with the main facilities, and maintenance is carried out to ensure that the facilities are operating normally. .

The Xitieshan lead-zinc mine in the western Gobi is backed by Qilian and faces Kunlun. The people here are due to the mining area. It is on this barren beach. The company vigorously develops production while taking sand for soil and planting trees. afforestation. In order to solve the problem of water and soil reclamation, the company has hardened and beautified the pavement of the living area. The mountain greening project that originally accumulated the abandoned meteorite has already begun to appear. Combined with the special climatic conditions here, a large number of more than ten kinds of seedlings such as poplar, willow and sand jujube suitable for the growth of alpine mountainous areas have been planted. Greening nearly 30 acres of windbreak forest, especially the green mine slag yard, planting more than 8,000 trees, shrubs, etc., the green area has increased by nearly 50,000 square meters.

Saishitang Copper from the beginning of construction, always adhere to the "development side, edge protection, governance side, while green" concept of development, invest a lot of capital to introduce advanced technology in water treatment, dust control, tailings disposal, and protection of vegetation Good results have been achieved in terms of recovery. Invested nearly 4 million yuan for the tailings pond re-greening project, restored the tailings pond area of ​​13,000 square meters, invested more than 8 million yuan in the hardened plant area to the tailings pond road, installed the tailings pond online monitoring system, and established a safe haven Six major systems." Conduct mine geological disaster management, land reclamation, recovery of wastewater and waste residue, infrastructure restoration in subsidence areas, and debris flow control to prevent soil erosion and various secondary disasters. In the past few years, more than 10,000 poplar, pine, cypress and other shrubs have been planted according to the climate, soil composition and environmental conditions of the mining area.

The Saishtang Copper Mine is led by energy-saving culture, promotes energy-saving mechanisms, promotes energy-saving technologies, and has significant energy-saving, water-saving and material-saving effects. In recent years, in the case of increased mining depth, expanded production scale, and increased demand for electricity, unnecessary expenditures have been reduced by including reactive power loss, electricity collection, and planned electricity consumption in the normal range of power management. In view of the problem of large power consumption in underground lighting, the use of green lighting technology, switch control, promotion of LED energy-saving lamps, installation of "people go lights off" sound and light control sensor lights in the office, the power consumption has dropped significantly compared to previous years. The underground wastewater is returned to the 1000 square meters reservoir through closed loop circulation for the beneficiation process for the beneficiation cycle. In order to ensure the rational use of waste rock, marble with high hardness coefficient is screened and broken and used for underground roadway support. Low-hardness waste rock is used for road paving after being broken. Under the support of national policies, comprehensive recovery of tailings has been carried out. At present, two units have carried out sulfur ore beneficiation recovery on tailings, which has improved the comprehensive utilization of resources. Constantly optimize the processing equipment and processes, without affecting the copper recovery and concentrate grade indicators, by adjusting the amount of reagent, gold and silver recoveries associated index change significantly. At the same time, it has declared that it has passed the tailings resource recycling and utilization plan, and the resources such as iron and iron in the tailings are recycled again. Through the shallow hole method for the small ore body to carry out comprehensive recovery, increase the mining efficiency of the lean ore, so that the comprehensive recycling "eat dry and squeeze", turning waste into treasure. After years of production practice, the original mine mining method is optimized for the ore bodies of different occurrences, the mining plan and construction sequence are adjusted, and the mining recovery rate is greatly improved.

Green mines open the road to sustainable development

Liu Yuxiu, deputy director of the Department of Land and Resources of Qinghai Province, said at the on-site exchange meeting on the promotion and application of green mine construction in the province: “The tin-steel lead-zinc mine has improved its resource utilization and achieved its tail through technological innovation, skill transformation, energy conservation and emission reduction. The zero discharge and maximum utilization of mines and wastewater, the natural environment around the mining area has been effectively protected. The comprehensive utilization of land reclamation and wastewater waste slag has improved the mine environment and effectively prevented geological disasters."

As one of the large-scale mines in the domestic non-ferrous industry, Xitieshan Lead-Zinc Mine has a total assets of 129.31 million yuan, a total profit of 31.12 million yuan and a tax of 65.63 million yuan. After many technical transformations, the current production capacity is 1.32 million tons/year, and the amount of minerals released in June reached 149,000 tons, a record high. The total volume of small ore bodies and residual ore bodies returned to the ore is more than 1 million tons, with an annual increase of more than 10 million yuan. The recovery of sulfur in tailings has increased to 133,300 tons, and the annual economic benefit is about 13 million yuan. Through industrial verification research, the gold recovery rate has increased by 5.77 percentage points, the silver recovery rate has increased by 1.51 percentage points, and the annual profit has increased by about 8 million yuan. The comprehensive recovery rate is at the leading level in the industry. At present, the actual production loss-reduction indicators have been reduced by 4%, and the mine poverty indicators have been reduced to 14%, ranking the forefront of the domestic industry. The next step is expected to reduce the poverty indicator to below 10%. At the same time, through process optimization and transformation, the recovery rate of ore dressing increased from 82% of the original design to 97.24% and 95.52%, and the economic indicators ranked in the forefront of the same industry in China. Up to now, the lead recovery rate is 95.16%, the zinc recovery rate is 93.16%, the sulfur recovery rate is 70.41%, the associated silver is 82.48%, and the associated gold is 21.38%.

In recent years, artificial forests with the ability to protect sand and sand have been formed in the plant area, rainfall has increased significantly, and wind and sand weather has decreased year by year. In terms of energy conservation and emission reduction, the annual water consumption for wastewater storage is about 970,000 square meters, and 600,000 square meters of waste rock are used to effectively prevent secondary geological disasters. The newly built tailings pond in 2013 reduced the impact of wastewater infiltration on the soil. At present, the nine basic requirements and assessment indicators for green mine construction are superior to the relevant national regulations, and various innovations have been highly evaluated by the National Green Mine Inspection Team.

Into the Xiashang copper mine at the foot of the snow-capped mountains, the trees are lined up on both sides of the road, the small flowers are racing, and the green areas are quietly filled around. The grass is planted in the tailings pond and other areas, and the turf is restored to 60,000 square meters. At the same time of the environment, it effectively reduces secondary dust pollution. Up to now, the total assets are 466.7 million yuan, the total profit is 657 million yuan, and various taxes and fees have been paid 479.7 million yuan. The copper beneficiation recovery index has been stable at more than 87.6% for several years. The mining recovery rate is 86% higher than the design parameters and the depletion rate is increased to 12.74%.

Western mining green mine construction is always on the road

The former mines survived in the development of high-resources and high-consumption industrialization. During the three or four years of the start, reform and development of green mines, they experienced hard changes and formed a circular economy development model with regional characteristics. At present, various indicators of production and operation have risen steadily, the scale of development has gradually expanded, the personnel structure has become more reasonable, and the management level has been greatly improved, achieving a harmonious and green development of the enterprise as a whole.

Today, standing on the edge of the Gobi, it is hard to imagine that a few years ago, the mining area here was still full of desolate, dusty pictures, all the changes are the result of adhering to the green construction. Wang Haifeng, general manager of Xitieshan Branch, said: “The next step will be to rebuild the concentrator and carry out technical reforms to increase the mine poverty rate by 3% to 4%, and the production method will be large and intelligent. Through scientific research and technical strength, mine resources will be ensured. There is a big breakthrough in the reserves, and our mining area will be built into a green geological park.” Ding Tianzhu, assistant general manager of the Saishang Copper Mine, said: “In the future, increase the exploration and development and comprehensive utilization of mineral resources, accelerate the development and extension of new products. The industrial chain and the added value of the industry will make the Saishtang copper mine an important non-ferrous metal mining and selection base."

Li Yibang, chief geologist of Western Mining Group, said: “The tin-steel lead-zinc mine and the Sishtang copper mine are at the forefront in the development of green mines in Qinghai Province. At the on-site exchange meeting on the promotion and application of green mines in the province, the province Only 6 units made speeches, and the western mining industry accounted for 2, and there were only 2 in the province, and 1 in the western mining industry. They represented the development of the western mining industry and got the relevant departments of the national land department and other mining enterprises. the high degree of recognition and praise. the next step will be in accordance with the provincial government and relevant departments of Homeland requirements, and actively promote the use of resources and green rock salt mine construction West Lake, magnesium industry, the lithium industry. "(Zhang Qian)

Suspended Platform

Suspended platform, as temporary suspended cradle platform, are widely applied in maintenance applications such as curtain fecade cleaning in high rise building, painting, glazing repairs, bill- board painting, cable installation and other outer working of high rise building up to 150 meters about 30 floors high. Our ZLP series suspended platform cradle, ZLP1000, ZLP800, ZLP630, ZLP500, ZLP400 and ZLP150, are good choices for fulfill above outside of wall work. Based on the different materials, the suspended platform could be divided into Aluminum Working Platform, steel Working Platform, galvanized Working Platform.