Mechanical Pulping Equipment、double screw knotter

Chemical mechanical pulping is a pulping method that uses chemical pretreatment and mechanical grinding post-treatment. First, conduct mild pretreatment (dipping or cooking) with chemicals to remove part of hemicellulose from wood chips. Lignin is less or almost not dissolved, but the intercellular layer is softened. After that, the disc mill is used for post-treatment to grind the softened wood chips (or grass chips) to separate the fibers into pulp, which is referred to as chemical mechanical pulp (CMP).

The double screw knotter machine is applicable to the rough pulping of wood chips, bamboo chips, branch materials, rice straw and other raw materials. It can directly process the raw materials into velvet fibers, and can be directly made into pulp with high concentration refiners .

The double screw knotter machine is mainly composed of the slurry chamber, base, feeding device, transmission device, main motor, etc. After the motor decelerates through the reducer, the slurry is pushed into the slurry grinding chamber through the screw, and is disintegrated into velvet fibers under the strong rubbing and grinding of the grinding plate. The machine has simple structure, convenient installation and easy maintenance.