Brief description:

Screw pulping machine is used for pulping dehydration pulping equipment. Can effectively deal with all kinds of slurry concentration. After concentration, the pulp dryness is uniform and the pulping rate is stable. Fiber penetration is rarely affected, no clogging, no slip design to reduce the wear of the spiral and...

Detailed introduction

Screw pulping machine is used for pulping dehydration pulping equipment. Can effectively deal with all kinds of slurry concentration. After concentration, the pulp dryness is uniform and the pulping rate is stable. The fiber penetration is rarely affected, and the non-clogging and non-skid design reduces wear and corrosion of the spiral. It is mainly used for extracting black liquor from large pulp mills: it is installed in the discharge bin, and the black liquor is separated from the pulp by the mechanical extrusion action of the variable diameter and distance spiral. The black liquor is precipitated from the filter frame to the black liquor tank. The pulp concentration can also be adjusted by the back pressure device at the discharge place. The equipment can also be used to concentrate the finished pulp and sell it directly as a commercial pulp.

Spiral extruder is an ideal extraction equipment for the comprehensive utilization of black liquor in pulp and paper mills. It is used for the black liquor extraction of wood, bamboo, bagasse, wheatgrass, reed and so on as raw materials, and can also be used for the black liquor extraction of waste paper black pulp. Because the axial force of the screw extruder is particularly large in the process of operation, it is easy to cause the damage of the bearing, and then cause the wear of the bearing position. The traditional maintenance method is to disassemble the equipment and machining it after repair welding. However, the thermal stress caused by high temperature of repair welding can not be completely eliminated, or the bearing position can be inserted and treated, which is time-consuming and laborious, and can not guarantee good coordination. At present, the developed countries mostly use polymer composite materials for on-site maintenance. Compared with the traditional method, this maintenance method can avoid disassembly and on-site repair of machining, and the maintenance cost is low, the maintenance cycle is short, and the labor intensity of maintenance personnel is greatly reduced. At the same time, due to the excellent comprehensive mechanical properties and adhesion of the material, there will be no high temperature stress, fully meet the operation requirements of the equipment, can ensure that the bearing chamber and the bearing a good match, to avoid the possibility of clearance again.