How to rationally develop and limestone | China Marble 

How to rationally develop and limestone

To resolve after several years, our country cement from cement production country to import power, in order to future generations.

Limestone is most abundant reserves and the most extensive mineral on earth, but it is not inexhaustible, an inexhaustible ". According to China cement net said that, "the limestone resources of our country is not rich, by 2007 the country's proven reserves of 75 billion tons of limestone foundation. Economic exploitation conditions of only 39 billion tons (Beijing municipal planning and design institute, 2007).

2007 national 1.36 billion tons of cement production, consumption of about 1.65 billion tons of limestone, at this rate as long as 23.6 years, with the economic exploitation value of limestone is used up, proven limestone mine are just enough to open sourcing for 45 years and a half! "On January 17, 2012, the national bureau of statistics released statistics show that in 2011, China's cement output of 2.06317 billion tons, (the author estimates the NSP cement production capacity will reach 1.6 billion tons).

 According to the NSP kiln high standard requirements for the main raw material quality limestone (high content of CaO, low content of K2O and Na2O), every year will consume about 1.94 billion tons of high-quality limestone resources, it is not true.

On April 21, 2008, Chinese dressing coal net non-metallic channel, according to reports, "according to the national development and reform commission (NDRC) predicts that by 2020 China's important degree of metal and nonmetal mineral resources reserves available security except for rare earth limited resources such as security degree is 100%, the others all sharp drop...

The recoverable duration of limestone for 30 years ", which should contain no mass production of high quality limestone resources. Besides, high-quality limestone or chemical, steel, paper and other industries must be major basic raw materials, the limestone resources crisis has become a continuous and stable development of cement industry in China must be considered a serious problem.

Within 20 years later? Such as less than 20 years of total capacity of up to 80% of China's cement NSP cement production line of the face of the stone "cook". Taking jiangsu province as an example, in 2002 the province based reserves of about 1.408 billion tons of limestone resources, the lack of basic mineral resources will make jiangsu cement production enterprise long-term supply of raw material severely constrained.

According to the provincial development and reform commission issued 08 "11th five-year plan" of jiangsu province cement industry adjustment and development of special planning, measuring, jiangsu cement clinker output will reach 75.82 million tons in 2010, will need 110 million tons of limestone, limestone resources in jiangsu province last 20 years? , foreseeable future jiangsu limestone resources reserves and the consumption of the increasingly prominent contradiction between.

To resolve after several years, our country cement from cement production country to import power, in order to future generations, in order to not on the national economic construction and national defense construction is not disciplined by others, we must cherish the limited limestone resources like energy saving, we can't go to the exploitation of huangshan, Lu Shan limestone!!!!

Rely on highly polluting production of steel and cement the developing mode of higher GDP should correct!


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