Key Techno Research Of Paper Machine Press System

As a measure of a national science and technology culture developed degree and animportant symbol of the modernization level, paper and paper products in theconsumption of modern social economic and cultural development have a vitalsignificance. There is still a great disparity in our country active paper machine fromproduction paper quality, efficiency, energy consumption, pollution and cost key indexescompared with developed countries. Chinese paper industry still has many keytechnologies to break through and resolve.Along with industrial automation, hydraulic systems and computer controltechnology development, the level of automation of the paper machine and workperformance have gained tremendous progress, the development direction of a greatervolume, paper-making more efficient and faster eject.The main role of the press section of the is huge line pressure generated on the couchroll when using mechanical extrusion discharging the water content of the low humidityof the paper web, in order to improve the dryness of the paper web enters the dryingsection. Squeezing, couch roll the size of the on-line pressure dewatering. Theexperiments show that the dewatering capacity of the press section is significantlyimproved with the pressure increase of squeezing line. This paper’s focuses onanalysising and redesigning press section pressure bin and hydraulic system of thepaper machine. It solves the paper machine drive system accuracy, squeezing forcecontrol accuracy and other major defect, increasing the paper quality, productionefficiency and reduce production costs. At first the paper’s analyzes and studies the papermachine’s working principle, main structure, paper process and key technique such asparts are, points out that the current paper machine needs to solve the key technology anddeficiency. It deeply analysises the paper machine press section system which is the key system of paper machine. The paper expounds the structure and working principle of theboot type press, in the traditional scheme basis,it proposes the new boots type presstechnology and uses Proe to design and model the mechanism. The principle of thehydraulic control system of the press section of the paper machine, load sensing andpressure compensation technology and pump control system works. Finally,according tothe present paper machine press section whole hydraulic control system’s designinsufficiency, improves and designs the existing scheme.