CN1962222A

CN1962222A - Process and apparatus for plasticizing paper pulp dregs in regenerated paper factory

Info

Publication number: CN1962222A
Application number: CNA2005100573771A
Authority: CN
Inventors: 杨绍基
Original assignee: Xiao Zhongling
Current assignee: Xiao Zhongling
Priority date: 2005-11-11
Filing date: 2005-11-11
Publication date: 2007-05-16

Abstract

The invention relates to a waste paper slurry extruder and relative operation temperature. The waste (paper slurry) via saw breaker is broken to be mixed in extruder. The invention uses double-roller breaker. And the large waste can be decomposed by disc saw first.

Description

Regeneration paper plant paper pulp is washed in a pan the Processes and apparatus that the slag plasticizing utilizes

1, invention " the plasticizing utilization that regeneration paper plant paper pulp is washed in a pan slag ".

2, project of the present invention belongs to the regenerated resource development and utilization technical field.

3, just known to the inventor, the paper pulp that the paper plant of regenerating is now produced when system is copied in regeneration to refuse paper is washed in a pan slag and all can't be used again, so send to the soot or lose in wilderness.

4, the object of the invention:

(1) eliminates of the pollution of this refuse, directly turn harm into good environment;

(2) increase the direct economic benefit of this paper plant;

(3) be society increase wealth (society obtain cheaper commodity);

5, every technology of complex art circle of the present invention is improved to be fit to the raw-material characteristics of this project.

(1) paper mill wastes can reduce three classes: a, the naughty slag of secondary stock is that various macromolecular material film forming matters (accounting for 80%) mixture is scoriform; The material that paper forms with plastics again of promptly containing that at all cannot be processed into paper pulp in b, the raw material waste paper bought back of regeneration paper plant is that current waste paper industry can't material processed, (about 10%); C, raw material supplier are sold in the waste paper of waste paper regenerated enterprise and have a mind to infiltrate the various waste materials that many non-paper plants can utilize, as (about 10%) such as fibre, rigid forming paper goods.Above three class materials are fully utilized processing:

(2) first equipment: the saw blade fine crusher flys in circles, be one group of woodworking saw blade Φ 300, every spacing 8～10mm, 2850 rev/mins of rotating speeds, about 25～30, length is 300～400mm, and rotation down at a high speed, wash in a pan slag and be " chaff shell " shape chip by chopping, charging in extruding machine smoothly (and all materials mix).Absorb iron filings with magnet before.

Second equipment: double-roll crusher, (being equivalent to the vulcanizate disintegrating machine in the reclaimed rubber industry), but speed ratio will increase to 1: 3-4, and in two rollers, axial groove is arranged, and groove depth 2-3mm, roll spacing is adjustable, be exclusively used in ground paper sheet material and reel material etc. and carry out " Pine separates ", (suction is moistening earlier).The jagsaw tablet pulverizer is in small, broken bits again, is blended in to wash in a pan in the slag to make packing material, reinforcing agent, also can be used for reslurry.

The 3rd equipment: the extruding machine after the improvement: can not process with existing extruding machine above-mentioned material, can't charging, macromolecule resin composition complexity, it is inconsistent that it causes softening point, thermal decomposition point is inconsistent, the fusing that has in extrusion process, the decomposition in various degree that has.Extruder screw, marketing all are equidistantly not wait the dark compression that forms, and the slit, exit has only 1～2mm, can't operate " easily getting stuck ".Now do following improvement, the heating thermal source is directly used carbon, or the combustion gas housing improves temperature to 200 ℃ at feed end 1/3 place, and is fixed according to the mobile weighing apparatus that keeps of outlet, adjusts temperature to the critical heat decomposition point that is lower than actual measurement, is not higher than 250 ℃.The screw rod groove depth increases the degree of depth to 12～20mm, and pitch increases to more than the 30mm.Adopt constant depth variable pitch screw as far as possible, have 1: the 2-3 low compression ratio can be interpreted as special-purpose conveying heater to it.(do not fuse mutually because have partly in reinforced, can only think the enhancing packing material of decentralized photo).

6, through the 5th explanation, the unavailable refuse of Paper factory of will regenerating can all be converted into extruded material.(be pressed into plastic products routinely, as: the grey sand bucket that building industry is used, the manure bucket of agriculture usefulness etc.).

Claims

1, the art of this patent feature: (this patent indication old paper stock is washed in a pan the present characteristics of slag and other refuse)

Refuse slag and the raw material waste paper is washed in a pan with its technical finesse measure that turns harm into good from the unresolved secondary stock that utilized by each paper plant of regenerating.Abandoning in wilderness has become public hazards (also to have some the plastics material in its naughty slag of human hand picking to be used for the regenerated plastics raw material, but labour cost is high, and is excessive on the cost, do not have economic worth, and still have nearly waste wood more than 60% can't processing and utilization, so this project does not solve its utilization yet.)

This patent aims at the technology and the corresponding three cover machineries of this proposition, and the refuse of waste paper regenerated paper plant is utilized fully.

2, technology characteristics:

Be different from the technology in the current waste plastics enterprise, have unique comprehensive utilization processing that utilizes various all refuses that the raw material in the waste paper regenerated paper plant bring all sidedly, the decomposition critical point of temperature height plastics to the composite material.200 ℃-250 ℃ of operating temperatures.

3, apparatus characteristic:

1. old paper stock is washed in a pan the slag extruding machine: in the commodity design that is different from the size design of screw rod on the current market; Deep trouth and low compression ratio, employing etc. equidistantly do not reach the width of axial outlet diameter and cylindrical shell deeply;

2. the formula of flying in circles saw blade fines machine: be the design that does not have in the current plastic industry, it has naughty slag and other waste material is in small, broken bits is " chaff shell " shape, for extruding machine charging plasticizing;

3. double-roll crusher (be exclusively used in useless forming paper goods, as loosening of paper bobbin, millboard).

Must remove iron filings with magnet before the raw material processing.