Pulping equipment for papermaking

Abstract

The invention provides pulping equipment for papermaking. The pulping equipment comprises a paper shredding device, a primary pulp mixing device, a pulping device and a pulp return pool, wherein the paper shredding device comprises a first device shell; a paper inlet is arranged on the upper end surface of the first device shell; a rotating shaft is arranged in the first device shell; a pluralityof paper shredding knives are fixedly arranged on the rotating shaft; a shredded paper outlet is arranged at the bottom part of the first device shell; the primary pulp mixing device comprises a second device shell; a water inlet is arranged on the second device shell; a stirring shaft is arranged in the second device shell and comprises a stirring section and an extrusion section; stirring bladesare fixedly arranged at the stirring section; and spiral blades are arranged at the extrusion section. According to the invention, by utilization of the paper shredding device, waste paper is cut into shredded paper; the shredded paper and water are mixed through the primary pulp mixing device and stirred through the stirring blades to form a mixed pulp; the mixed pulp is conveyed to a barrel-shaped shell under the rotating thrust action of the stirring blades inclining towards the extrusion section; the shredded paper is further continuously torn in the barrel-shaped shell and then discharged to the pulp forming device; and the pulp is further filtered through a filter screen in the pulping device to obtain a finished pulp.

Description

technical field [0001] The invention relates to pulping technology, in particular to pulping equipment for papermaking. Background technique [0002] Waste paper is an important renewable resource. At present, my country's paper industry is facing three major problems: shortage of raw materials, energy shortage and serious pollution. The recycling of waste paper provides an effective way to solve the three major problems faced by my country's paper industry. [0003] Paper pulper is a necessary equipment in the pulp and paper industry, mainly used for crushing pulp board and waste paper. A paper pulper generally includes a pulping box, a geared motor, a pulping cutter and a screen installed in the pulping box, and the pulping box is provided with a raw material inlet, a slag discharge port and a pulp discharge port. When pulping, put the pulp board, waste paper and water into the pulping box from the raw material port, and use the geared motor to drive the pulping cutter to...

AI Technical Summary

Problems solved by technology

When pulping, put the pulp board, waste paper and water into the pulping box from the raw material port, and use the geared motor to drive the pulping cutter to rotate. The pulping cutter breaks up the pulp board and waste paper and dissolves them in water to form pulp, which is discharged from the The waste slag is discharged from the slag discharge port. In the prior art, the waste paper and pulp board are directly mixed with water, and the shredding and mixing are carried out simultaneously, so the mixing efficiency is low and the shredding effect is not good.

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