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The structure of spherical digester
Spherical digester is mainly composed of spherical shell, shaft head, bearing, transmission device and connecting pipe. Digester shell a spherical thin-walled pressure vessel with boiler steel plates welded. High welding structure strength reduces the total weight of the equipment, compared with ...Read more -
History of cylinder mold type paper machine
Fourdrinier type paper machine was invented by french man Nicholas Louis Robert in the year of 1799, shortly after that English man Joseph Bramah invented cylinder mold type machine in the year of 1805, he first proposed the concept and graphic of cylinder mold paper forming in his patent, but Br...Read more
