Introduction
The general term for mined reserves and designed reserves. For solid minerals, the ore boundary grade is first used to delineate the ore reserve boundary, which is called the balance off-balance-sheet reserve boundary, and then the mineable boundary is delineated based on indicators such as the lowest industrial grade of ore, the minimum mineable thickness of the ore body, and the maximum allowable rock inclusion thickness of the ore body. The ore reserves between the mineable boundary and the balance off-balance sheet reserve boundary are called the balance off-balance sheet ore reserves, referred to as off-balance sheet reserves, that is, the ore reserves with no industrial value at that time; the ore within the mineable boundary line.
Reform
In 1959, the "Interim Specifications for Classification of Mineral Reserves (General Provisions)" formulated by the National Mineral Reserves Committee is the collective term for the mined reserves and the designed reserves. Proposed by the Ministry of Metallurgy of China in 1965 and officially adopted in the National Mineral Reserves Table since 1968, it refers to the major mineral reserves obtained after geological exploration. It is equivalent to reserves above C1 level classified in the "Interim Specifications for Classification of Mineral Reserves (General Rules)" formulated by the National Mineral Reserves Committee of the Ministry of Geology in 1959. In the geological prospecting work of the former Soviet Union, the three-level reserves of A (or A1, A2), B, and C1 are usually referred to as industrial reserves, also known as detailed proven and studied reserves.
Development
People-oriented is the core of the scientific development concept, and it is also the main driving force for building an ecological civilization, forming a resource-saving and environment-friendly industrial structure, growth mode, and consumption mode. Only by standing at the height of people-oriented can we deeply understand and understand the significance and far-reaching impact of building resource-saving and environment-friendly state-owned coal enterprises and enhancing the ability of sustainable development, can we further increase the sense of mission and responsibility for the development of circular economy, and enhance development The enthusiasm of circular economy.
To correctly view the significance of building a resource-saving and environment-friendly state-owned coal enterprise, two profound understandings should be achieved:
First, a deep understanding of the history and history of state-owned coal enterprises status quo.
From the perspective of the overall development and utilization of coal resources, it is more rapid than good, quantity is better than quality, single growth, and overall coordination and sustainability are ignored.
History
As my country’s main energy resource, coal has effectively supported the sustained and rapid development of the national economy for more than 50 years since the founding of the People’s Republic. Coordination factor. In the early 1980s, in order to increase coal production, the policy of "water flows quickly" was put forward. For a time, coal mines of all sizes sprung up like bamboo shoots after a rain. This kind of low-level mining with a sporty, slaughter-for-egg type, paid attention to production and ignored it. The quality of the development of coal enterprises, its destruction of coal resources, and its impact on the sustainable development of the coal industry are far-reaching.
Current situation
However, the coal industry now seems to be repeating the past in different forms. With regard to the possession of coal resources, the land is encircled by various means to obtain prospecting rights and mining rights, destroy resources, over-capacity production, easy mining and abandonment; repeated construction of mines, blind investment; a large number of newly built mines and power plants constitute potential The crisis of oversupply of products has caused new environmental pollution. At the same time, the industrial concentration is still low. The top 4 coal production companies in China currently account for only 17.34% of the country’s coal production. A large number of small and medium-sized coal production companies compete disorderly and the resource recovery rate is low.
From the resource utilization rate of state-owned coal enterprises, there is still a big gap compared with the requirements for strengthening energy resource conservation and sustainable development capabilities.
The mining of coal resources in my country only has specific requirements for the coal seams that are mined. For example, the recovery rate for thin coal seams must not be less than 85%, and medium thick coal seams must not be less than 80% The thick coal seam cannot be less than 75%, and there is no clear requirement for the overall recovery rate of the coal field. Affected by rising coal prices, the recovery rate of coal resources in my country is gradually increasing, but the overall recovery rate of coal resources in all provinces and regions across the country is only about 30% on average. The overall recovery rate of coal resources in developed countries is 60%-70%.