Squeezing type dehydration system adapted for waste paper residue with high water content

Abstract

This invention relates to an expression dehydration system fit for waster paper slag, which comprises compressor, pusher and sewage collecting well, characterized in that the compressor comprises frame, hydraulic oil cylinder 1 setting vertically in the frame, a stripper plate connecting to the bottom of the cylinder 1 and excavation masonry under the ground; in the steel die wall surface it distributes ports for passing water evenly, and the in the lateral of the stripper plate it hinges the steel link which can be active connected with the steel die; the pusher comprises the hydraulic oil cylinder 2, roll vehicle and push plate, which hinges horizontally with the ground seat; the sewage collecting well is set in the bottom adjacent to the excavation, having pump and the inlet, outlet channel of the pump, wherein on end of the inlet channel connected with the discharging slot between the excavation and the steel die.

Description

Technical field [0001] The invention relates to paper residue dehydration equipment in the field of environmental protection, in particular to a press type paper residue dehydrator. Background technique [0002] Papermaking companies often use part of recycled paper as raw materials for papermaking. Recycled paper will produce residual waste paper residue when it is chemically pulped. The composition of waste paper residue is mainly composed of polyvinyl chloride, polyethylene and waste paper pulp. Usually, about 70-75% of the water remaining in the waste paper fiber is difficult to remove, which makes the subsequent incineration of the waste paper residue more difficult and the incineration cost higher. At the same time, the high moisture content in the flue gas emitted by incineration is not conducive to the stable operation of the tail purification system in the incinerator. At present, rotary drying kilns and centrifugal dewatering equipment are widely used at home and abroad...

AI Technical Summary

Problems solved by technology

Usually about 70-75% of the water is retained in the waste paper fibers and it is difficult to remove, which makes the subsequent incineration of waste paper residues more difficult and incineration costs higher

At the same time, the moisture content in the flue gas emitted by incineration is relatively high, which is not conducive to the stable operation of the tail purification system in the incinerator

At present, rotary drying kiln and centrifugal dehydration equipment are widely used at home and abroad to dehydrate waste paper slag, but this equipment has the defects of large investment, complex system, cumbersome operation, and heavy maintenance workload.

In addition, the dehydration of waste paper slag can also use the method of drying and dehydration, but this requires a large space, and the dehydration efficiency is low, and it will also pollute the surrounding environment

Images