Paper machine in the form of single-wire, single-felt, single-cylinder crescent tissue machine, headbox, four-roller crescent former, vacuum roller press, Yankee dryer, high-speed hot air hood, horizontal pneumatic winder Etc composition, compact structure.
1. The forming part is composed of: headbox, forming roller, water receiver, wire part and white water tank in the machine, guide roller, high and low pressure water spray and roller cleaning scraper, etc.
2. The pressing and drying part is composed of: Yankee dryer, vacuum roller, felt loop, rack and so on. The blanket is connected with the forming net, equipped with pneumatic corrector, electric tensioner, blanket guide roller, high-pressure mobile water spray pipe, low-pressure fan-shaped water spray pipe, blanket conditioning washing device, etc. The drying cylinder adopts rolling bearing, equipped with thin oil lubrication system, and circulates lubrication.
3. High-speed hot air hood: divided into dry and wet parts, which are opened and closed by pneumatic control. The reasonable design of the air duct inside the hood can ensure that the hot air is evenly distributed and impacts the paper web on the surface of the drying cylinder. It can be heated at 140-160 ° C. Stable work under high temperature. The heat recovery system ensures full utilization of steam.
4. The take-up part is composed of: roll paper cylinder, main and auxiliary arms and transmission system, arc rod stretching device, paper roll brake device, frame and so on. The roll paper cylinder adopts the coupling direct connection type, and is equipped with an AC frequency conversion motor and a hard tooth surface reducer for transmission.
5. The transmission is divided into three main transmission points: the forming roller, the vat, and the winding machine. The three-point frequency conversion speed regulation system can be operated independently and synchronously, and can also be operated independently to clean the net blanket or preheat the drying cylinder. Automatic load distribution between the two transmission points of forming roll and drying cylinder. The transmission of the forming roll is composed of a hard-tooth surface reducer and a cardan shaft, the large cylinder is driven by a hollow reducer, and the winding machine is driven by a helical gear reduction motor.