【Major Industrial Equipment in the Chemical Industry】558 – HDPE Suspension Stirring and Reaction Vessels Made in Jiangsu from 2019

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HaiChuan celebrates the 73rd anniversary of the motherland; witness the significant development in chemical processing equipment. Replies will be rewarded – discussions are welcome. In June 2019, all the pressure vessel products for Wanhua Chemical manufactured by Daming Heavy Industry were successfully delivered. Wanhua Chemical and Daming Heavy Industry have signed several contracts in the past, all related to large-pressure-vessel products; their production takes a long time and is quite challenging, especially for the three reactors, which are even more difficult to manufacture. The three reactors are stirred reaction vessels; the reaction medium is primarily an HDPE suspension (ethane). The diameter of each unit is 4700 mm, its length is 17252 mm, and the weight of each reactor is 110 tons. This device has a special structure and extremely high technical requirements: its body is covered with semi-tubes, demanding high standards for assembly ； The welding work for connecting the half-pipe to the equipment body is extensive ； Each individual device has over 60 turns of half-tubes, resulting in a total weld length of 1,950 meters. The assembly precision of the mixer mounting port is also very high; the tolerance for the perpendicularity of the mixer mounting flange to the cylinder axis is <0.0125°, while the error in its coaxiality with the cylinder axis is <2mm ； The coaxiality error of the upper and lower mounting flanges on the mixer is <1mm.