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Energy-Saving & Discharge-Reduction Appeared Good Trend in Changjiang Delta Zone Cement Industry
    Up to November of this year, there are 56 shaft kiln cylinder plant enterprises closed in Zhejiang Province and 68 enterprises in Jiangsu province. It is estimated that there will be 24 million tons of shaft kiln and other cylinder production in these two provinces this year. From January to November, cement cylinder production volume decrease 12% and 10% in Jiangsu and Zhejiang provinces, and it is estimated that the cement cylinder production volume will be decreased by 15 million tons of these two provinces this year. 
    Changjiang delta district is China’s largest cement production and consumption base. 10 2006, the cement cylinder production volume in Shanghai, Jiangsu, Zhejiang and Wuhu, Tongling, An’qing, Xuancheng, Chizhou etc cities in the south of Hunan province, amounts to 184 million tons, 21% of national total volume, cement production volume is 240 million tons, 19.4% of national total volume; total energy consumption in cement production is 24.5 million tons of standard coal, 18.7% of national cement manufacture; total coal consumption in cement production is 30.24 million tons, 18.5% of national cement manufacture; wasted air discharge total volume 697.2 billion standard m3 , 17.1% of national cement manufacture wasted air discharge volume; 0.112 million tons of SO2, 10.8% of national volume, 0.62 million tons of discharged power and smoke, 10.9% of national volume. 
    In 2007, the cylinder production volume in Jiangsu and Zhejiang has declined; however, their cement production volume was increased by 6.1% and 4.7% respectively. The cement cylinder in ShanghaiJiangsu and Zhejiang are mostly provided by cement enterprises in An’hui, Jiangxi, and Hubei, these Changjiang River Bank cities. The cylinder production in An’hui province has increased by 10 million tons this year. Wuhu, Tongling, An’qing, Xuancheng, Chizhou etc cities in the south of Hunan province by using the advantages of recourse and convenient Changjiang golden transportation, the cylinder production in 2006 was 47.21 million tons, 35 million tons of with were sent out of delta and China. Till November of 2007, the cylinder production volume in south of Huibei kept increasing, up to 48.23 tons, increase by 20%, and 37 million tons of which are sent out delta and China. It can be said that the promoted production in An’hui and south of Hubei replaced that of Jiangsu and Zhejiang provinces. 
    The cylinder production location changing in Changjiang Delta has its resource reason and economy reason. Since 2004, the cement enterprise in Shanghai, Jiangsu and Zhejiang have bought the coal at very high prices, and Zhejiang bought the coal at the highest price in the country, at price of 570 Yuan above per ton. Jiangsu enterprises bought cement at prices around 500 Yuan per ton since 2004; the enterprises in Jiangsu and Zhejiang have bought coal at prices 80~130 Yuan higher than that of surrounding places. As the high economic development, the people’s salary in Jiangsu and Zhejiang was much higher than that of surrounding places. In 2006, the salary in Shanghai was about 29000 Yuan per year, and the Jiangsu and Zhejiang have also arrived 21000 and 16000 RMB respectively. Through comprehensive calculation, the cost of cement production in Zhejiang and Jiangsu will be 20~25 Yuan per ton higher than surrounding places. Recently, the Zhejiang cement companies’ capital was invested in AnhuiJiangxiShangxiQinghaiLiaoning, Heinongjiang etc. Nanfeng, Shangfeng, Sanshi etc large-size cement companies in Zhejiang has established cement cylinder and cement providing base in Jiangxi Jiujiang, Anhui Tongling and Xuchen. The cement industry in Shanghai has been declined continuously, only several large-sized cement enterprises and cement grinding station left. After the fast development since 2004, the cement industry in Zhejiang and Jiangsu has been stop for long.
    Cement cylinder production location exchanging is the result of cement production specialization and socialization, the result of the activities of large-size cement companies. In the cylinder production in Hubei district companies, the new type dry process takes 96.57 percentage; Sanshi, Shangfeng, Tongxing and Hailuo etc, 4 large-size cement enterprises in Zhejiang and An’hui controlled 90% of the cylinder production in this district. The standard coal consumption of the cement enterprises in south of Hubei was lower than 110 kg/ton, much lower than national standard, and the discharging of SO2 was 0.42 kg/ton, firstly get the requirement of Air Polluting Discharging Standar of Cement Industry before 2010. Only if they implement the policy and environment protection standard, it is possible to make air pollution in the south of Hubei keep present level. The cement industry in Jiangsu and Zhejiang must follow the trend of development, keep on take away backward productivity, forbid to establish plants in the place without limestone, make and implement the local standard with will be stricter than Air Polluting Discharging Standard of Cement Industry. Chiangjiang River Delta, the largest cement production and consumption base, can be able to reduce the polluted air discharging. The cement industry in Zhujiang River Delta and Bo Sea surrounding districts have also appeared such phenomena. If the local governmental supervising department follows the economy circulating regulation, strictly implement environment protecting standard, the reduction of main polluting air discharging in the cement industry can be realized.

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