It is understood that a number of distinctive chemical parks have been successively constructed along the Yangtze River Economic Belt and coastal developed areas such as Guangdong, Zhejiang, Fujian and Shandong. There are natural gas chemical industry parks in Chuzhou, Sichuan, and Changshou in Chongqing, and industrial parks such as Daya Bay in Guangdong, Maoming in Guangdong, and Quangang in Fujian, etc., with large petrochemical companies as leading companies; Nanjing, Changzhou, Suzhou, and Nantong in Shanghai and Jiangsu. Zhangjiagang, Yangzhou, and other unique chemical parks; Zhejiang Shangyu, Jiaxing, Ningbo, and other positioning in the new chemical materials, fine chemical parks. As of this year, the number of chemical parks approved by the state or provinces and municipalities has reached about 60.
Li Yongwu, president of the China Petroleum and Chemical Industry Association, made a keynote speech entitled “Conscientiously implement the spirit of the Fifth Plenary Session of the Sixteenth Central Committee and guided the construction of the Chemical Industry Park with a scientific development concept†at the forum, focusing on the conclusion that China’s chemical industry park has emerged. The salient features. First, a large-scale petrochemical park represented by Shanghai and Nanjing has formed a relatively complete industrial chain. Second, the Fine Chemical Park represented by Nantong, Taizhou and Zhangjiagang has become a new chemical material base in China. Third, a group of specialty chemical parks represented by Changshu, etc., have begun to extend new products such as inorganic fluorine products, fluorine-containing polymer materials, and fluorine pharmaceutical intermediates.
Li Yongwu also pointed out in the report that there are issues such as small and complete, assimilation, lack of compliance, and safety in the current park construction.
The reporter also learned that the forum also invited experts and scholars from the Ministry of Science and Technology, PetroChina, Sinopec, China Plastics Association, and China Automobile Association to jointly discuss the future development of the chemical industry park.
The forum was sponsored by the China Petroleum and Chemical Industry Association, and co-organized by the Nanjing Chemical Industry Park, the Petroleum and Chemical Industry Planning Institute, and the China Chemical Newspaper Office. More than 150 representatives of more than 40 chemical parks and enterprises from all parts of the country and representatives of foreign companies invited to the forum attended the forum.
Classification of tablet press: Models can be divided into single punch tablet press, rotary tablet press, sub-high speed rotary tablet press, automatic high speed tablet press and rotary core tablet press.
The sheet shape pressed by the tablet press is initially flat circular, and later developed into shallow circular arc and deep circular arc on both sides, which is for the need of coating. With the development of special-shaped tablet press, oval, triangle, oblong, square, diamond, circular ring tablets followed. In addition, with the continuous development of preparations, due to the requirements of compound preparations and timed release preparations, special tablets such as double layer, triple layer and core coating are made, which need to be completed on special tablet press.
Rotary tablet press is a machine which is made of several pairs of die distributed on the turntable to make a circular lifting movement according to a certain track and press the granular material into tablet through the press wheel. And the stamping rod with the rotary table rotating speed ≥60m/min line press is called high-speed rotary tablet press, this high-speed rotary tablet press has a forced feeding mechanism, the machine is controlled by PLC, has the automatic adjustment of pressure, control the weight of the piece, eliminate the waste piece, print data, display fault shutdown and other functions, in addition to the control of the weight difference within a certain range, Quality problems such as missing Angle and loose lobe can be automatically identified and eliminated.
With the development of market demand, the scope of application of tablet press is more and more wide, no longer simply limited to the suppression of Chinese and Western medicine tablets, more widely suppressed health food, veterinary medicine tablets, chemical tablets: such as mothballs, washing blocks, smurf blocks, art powder, pesticide tablets, food tablets: chicken essence block, isatis root block, divine Qu tea block, compressed biscuits.
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