Dry pulping system and dry pulping process

Abstract

The invention provides a dry pulping system. The dry pulping system comprises a scattering unit, a crushing unit, a material separation unit, an impurity removal unit and a packaging unit, wherein the scattering unit comprises a bale breaking machine; the crushing unit comprises a shredding machine, a scattering and crushing machine and a fiber regeneration machine; the material separation unit comprises a material separation bin and a pulse dust collector; the impurity removal unit comprises a light impurity removal mechanism and a heavy impurity removal mechanism; the packaging unit comprises a screw extruder and a packaging machine; and the bale breaking machine, the shredding machine, the scattering and crushing machine, the fiber regeneration machine and the packaging machine are connected through a belt conveyor. The invention further provides a dry pulping process. The dry pulping process comprises the dry pulping system and further comprises the step that (1) waste paperboards are scattered and fed into the shredding machine for coarse crushing so as to obtain a long-strip-shaped material with a width ranging from 60 mm to 80 mm and a length ranging from 170 mm to 300 mm.

Description

technical field [0001] The invention belongs to the technical field of waste paper treatment, in particular to a dry pulping system. Background technique [0002] Waste paper is widely used as papermaking raw material, which provides an important renewable resource for the papermaking industry. It can not only alleviate the contradiction between the shortage of papermaking raw materials and energy consumption, conform to the concept of sustainable development, but also alleviate the increasingly serious environmental pollution problem. Compared with directly using commercial pulp boards, using waste paper raw materials to make pulp can effectively reduce the cost. [0003] At present, as China is the most active economy in the world, a large number of commodities are circulated and sold at home and abroad, and a large amount of packaging paper is used. In the past, domestic packaging paper manufacturers mostly used imported waste paper to make high-grade packaging cartons. ...

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Problems solved by technology

[0004] The invention also provides a dry pulping system, which is used to solve the problem of high impurity content of imported waste paper and pollute the environment, and achieve the beneficial effects of removing impurities and avoiding environmental pollution; by removing heavy impurities from worn equipment, the equipment can be used more efficiently. Life, and by removing light impurities to improve work efficiency and reduce energy consumption, while solving the problem of shortage of preferential waste paper raw materials in my country

[0005] The invention also provides a dry pulping process, which is used to solve the problems of large water consumption and chemical pollution during traditional waste paper pulping, and achieve the beneficial effects of reducing water consumption and pollution

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