METHOD OF PREPARATION OF THE VEGETABLE RAW MATERIALS Russian patent published in 1995 - IPC

FIELD: wood-working and forest industries. SUBSTANCE: willow shrubbery is used as vegetable raw materials. Its procurement is made in the winter period. Before crushing the disruption of the wood cross bonds is carried out. The crushing is fulfilled with grist. The detachment of the crust from the wood is exercised by sorting after drying off. The disruption of the cross bonds is carried out either by rolling or by impact or by explosion or by abrasion in the frozen state. The crushing of the shrubbery wood is exercised in the frozen state. The grist is fulfilled with the breach of the entirety of cells of the wood, bast and the shrubbery crust. The sorting is carried out according to the difference in the densities of the wood and crust, pneumatically or mechanically, with the extraction of the bast fibers. It can be done in water. EFFECT: enhanced efficiency. 17 cl