Cement industry is economic development, production and construction and people's lives indispensable basic raw material industry .

1. Cement industry is economic development, production and construction and
people's lives indispensable basic raw material industry . As China's economic
development, the cement industry has reached a considerable scale , in 2009
China's cement production 1.65 billion tons , accounting for over 50% of the
world's cement production has been for 20 consecutive years, ranking first in
the world . Cement industrial output value of more than 5,000 billion yuan,
accounting for China's building materials industry, more than one third of GDP.
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</a>can be mined by open pit and underground methods.
 Entering the new century , China's cement industry breakthrough occurred
changes. From the mere quantitative growth to quality -effective growth ;
backward technology and equipment from the type to advanced technology and
equipment type ; shifted from labor -intensive investment ; shifted from
managing extensive management intensive ; wasteful from a resource type to
resource-saving ; from the type to meet the domestic market demand for both
domestic and international market demand type . Fundamental change to achieve
the above reasons, is to enter the new century quick dry cement production
technology development and application . In the industrial policy under proper
guidance , reflect the following characteristics
Achieve " low investment and localization " is the Chinese entered the era of
dry cement key to the rapid development of new dry cement , stems from the dry
cement technology and equipment research and development, design , manufacture
obtained significant progress. In the past research and development 2000t / d
sets of technical equipment , based on the development and introduction of selfabsorption to take a combination of the further development of the 5000t / d,
8000 t / d, 10000 t / d cement production level sets technical equipment. <a
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Large equipment localization rate of increase , greatly enhancing the
competitiveness of enterprises . Dry cement production technology and equipment
in the " process energy conservation, technology and equipment large, clean
production environment , control and management of information technology " has
made outstanding achievements. As technology advanced, mature and reliable ,
making the dry cement production line of the main technical and economic
indicators have reached international advanced level of similar production lines
, manufacturing costs decreased, significantly enhance the competitiveness of
enterprises . According to the China Cement Association statistics, as of the
end of 2009 , China had 1,113 new dry process cement production lines in
operation, designed annual clinker production capacity of 95,859 tons. Which
Nissan 700 tons ~ 900 tons production line 41 ; Nissan 1000 tons production line
151 ; Nissan 1100 to 1400 tons production line of 99 ; Nissan 1500 to 1800 tons
production line of 53 ; Nissan 2000 tons production line of 76 ; Nissan 2500
tons production line of 324 ; Nissan 3000 ~ 3500 tons production line of 53 ;
Nissan 4000 to 4200 tons production line of 46 ; Nissan 5000 tons production
line of 270 and above . Nissan 5000 tons and above cement clinker production
line design production capacity of the total dry process cement clinker
production capacity accounted for 45.27%. <a
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represents a country's emphasis on the environment. The proportion of new dry
cement has reached 76.88 percent . Single positive large-scale development of
production capacity , following the conch few 10000t / d production line put
into operation, Henan Shui Ying Yang 12000t / d production line has been put
into normal operation , the country backward cement production capacity is
accelerating eliminated.