CN103790060A - Pulping and bleaching technology of new aggregation state modified pulping process - Google Patents
Pulping and bleaching technology of new aggregation state modified pulping process Download PDFInfo
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- CN103790060A CN103790060A CN201210425921.3A CN201210425921A CN103790060A CN 103790060 A CN103790060 A CN 103790060A CN 201210425921 A CN201210425921 A CN 201210425921A CN 103790060 A CN103790060 A CN 103790060A
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- bleaching
- defibrination
- pulping
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- slurry
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Abstract
The invention discloses a pulping and bleaching technology of the new aggregation state modified pulping process. The pulping and bleaching technology is characterized in that pulping and bleaching are synchronously performed in the same system; the temperature of curing and the bleaching of pulp is provided by the heat energy produced by the mutual friction of fibers; the pulping and the bleaching of the integral system are performed when the concentration of the pulp reaches about 30%; the integral system is connected with a screw propeller. According to the pulping and bleaching technology of the new aggregation state modified pulping process, the energy-saving and emission reduction effects are good, the cost is low, and the quality of the pulp is good.
Description
Technical field
One is specially for defibrination, the bleaching technology of aggregative-state modified slurrying (be called for short jjt slurrying) new technology (200910119198.4).It is after adopting aggregative-state modified method that raw material is cleaned, softened, on the special production line of a different conventional production lines, and the technology of synchronously carrying out defibrination, bleaching.This techniqueflow is short, water is few, starches dense height, utilizes the frictional heat between fiber to carry out.Water-saving, energy-conservation, investment-saving, the quality of slurry is good.
Technical background
No. 200910119198.4, patent, for the existing problem of slurrying industry, has proposed a kind of new pulping technique thinking and method of modifying, but defibrination how after modification how to bleach, do not answer by problems such as what equipment carry out.Very unfavorable to the popularization of new technology.Tackle key problems in order to address this problem inventor's association part entity and individual, createed a set of new equipment and process.Its appearance will promote applying of jjt effectively.
Summary of the invention
This working of an invention will have a main frame with setting-out, hydrojet, kneadding function.Raw material through modification laggard enter main frame, extrude wherein partially modified liquid, its mass dryness fraction is reached more than 30%; Spray into again bleaching assistant and the hydrogen peroxide of debita spissitudo, then under the pressure of main frame, rub mill and bleaching with the hands; Raw material is reached after certain temperature, send into feed bin, slaking on the one hand, bleaches on the one hand, sends defibrination after stopping certain hour; Now need to increase and to float agent in exit according to the whiteness of slurry.Grinding several times will be according to user's requirement.After defibrination, can enter again a feed bin and park, also can directly extrude use.Whole process slurry is dense will remain on 28%-30%, all adopts screw propulsion.
Technical advantage
The defibrination bleaching technology that adopts this invention, brings following advantage:
(! ) further expanding the scope of available pulping raw material: jjt pulping raw material is originally just wide, can reduce more the carbon dioxide that bacterial activity is emitted.This invention can, by regulating engine speed to adapt to various raw materials, make performance, the whiteness of slurry obtain the best.Available raw material is more.
(2) improve the quality of slurry: use than manufactureizations machine and starch equipment still less and lower cost manufacturing chemistry is starched.
(3) defibrination and bleaching are synchronously carried out, and flow process is short, equipment is few, per unit area yield is high, factory building is little, reduced investment.
(4) high dense running, helical feed, conserve water greatly.Make technique reach very high Environmental Protection Level.
(5) use raw material grinding mill chafing energy slaking raw material, reach bleaching temperature, reduced greatly energy resource consumption.
(6) slurrying cost reduces greatly.
Case
Yi Ge pulp mill, Nanning is raw material with eucalyptus leftover pieces, adopts this method slurrying.Yield is 80%-90, and unit cost is lower more than 1000 yuan than former technique, and full factory is without boiler, no chimney, without sewage discharge, and ton slurry water consumption 5-6 ton, goes back recycle, and unit power consumption is starched low by 50% than change machine, and pulp quality is good, and supply falls short of demand.
Claims (5)
1. defibrination, the bleaching technology matching with aggregative-state modified pulping process (200910119198.4).Be characterized in: enter a main frame that has dedicated functions through aggregative-state modified raw material, squeeze and go partially modified liquid to make slurry reach 30% mass dryness fraction, then spray into a certain amount of bleaching assistant and float agent, carry out high pressure and rub mill and bleaching with the hands; Send into feed bin through the slurry that tentatively grinds and bleach through spiral propeller, slaking on the one hand, continues bleaching on the one hand; Through sending after a while, carry out one or two section of defibrination; Require can add again and float agent at discharging opening according to whiteness, in defibrination, continue bleaching; Through the slurry or the pack that grind and bleach, or enter feed bin.
2. defibrination claimed in claim 1, bleaching technology, is characterized in: with a main frame that has a dedicated functions, this main frame must have extruding part modification liquid, makes slurry mass dryness fraction reach more than 30% structure; There is the structure of spraying bleaching assistant, floating agent; There is the structure of under high pressure slurry being rubbed with the hands mill.
3. defibrination claimed in claim 1 and bleaching technology, is characterized in: defibrination and bleaching are synchronously carried out in a system.
4. defibrination claimed in claim 1 and bleaching technology, is characterized in: defibrination and bleaching are carried out in height is dense, are carried by spiral propeller.
5. defibrination claimed in claim 1 and bleaching technology, is characterized in: defibrination and the required energy of bleaching are supplied with by fibre frictoin heat-dissipating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210425921.3A CN103790060A (en) | 2012-10-31 | 2012-10-31 | Pulping and bleaching technology of new aggregation state modified pulping process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210425921.3A CN103790060A (en) | 2012-10-31 | 2012-10-31 | Pulping and bleaching technology of new aggregation state modified pulping process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103790060A true CN103790060A (en) | 2014-05-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210425921.3A Pending CN103790060A (en) | 2012-10-31 | 2012-10-31 | Pulping and bleaching technology of new aggregation state modified pulping process |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103790060A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5554259A (en) * | 1993-10-01 | 1996-09-10 | Union Camp Patent Holdings, Inc. | Reduction of salt scale precipitation by control of process stream Ph and salt concentration |
| CN1350091A (en) * | 2001-11-27 | 2002-05-22 | 岳阳纸业股份有限公司 | Pan grinder bleaching process of italian poplar APMP pulp and process optimizing method |
| CN1587502A (en) * | 2004-09-14 | 2005-03-02 | 天津科技大学 | New process for producing alkaline hydrogen peroxide mechanical pulp by double scrwe extruding method |
| CN101831819A (en) * | 2009-03-09 | 2010-09-15 | 陈根长 | New aggregative-state modified pulp and paper making process |
| CN102212979A (en) * | 2011-05-31 | 2011-10-12 | 华南理工大学 | High-concentration pulp bleaching device |
| CN102242514A (en) * | 2011-06-07 | 2011-11-16 | 华南理工大学 | Paper pulp high density bleaching method |
| CN202107936U (en) * | 2011-05-31 | 2012-01-11 | 华南理工大学 | High density bleaching device for paper pulp |
| CN102561096A (en) * | 2009-12-17 | 2012-07-11 | 宜宾长毅浆粕有限责任公司 | Method for preparing wood dissolving pulp by modifying unbleached wood pulp |
-
2012
- 2012-10-31 CN CN201210425921.3A patent/CN103790060A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5554259A (en) * | 1993-10-01 | 1996-09-10 | Union Camp Patent Holdings, Inc. | Reduction of salt scale precipitation by control of process stream Ph and salt concentration |
| CN1350091A (en) * | 2001-11-27 | 2002-05-22 | 岳阳纸业股份有限公司 | Pan grinder bleaching process of italian poplar APMP pulp and process optimizing method |
| CN1587502A (en) * | 2004-09-14 | 2005-03-02 | 天津科技大学 | New process for producing alkaline hydrogen peroxide mechanical pulp by double scrwe extruding method |
| CN101831819A (en) * | 2009-03-09 | 2010-09-15 | 陈根长 | New aggregative-state modified pulp and paper making process |
| CN102561096A (en) * | 2009-12-17 | 2012-07-11 | 宜宾长毅浆粕有限责任公司 | Method for preparing wood dissolving pulp by modifying unbleached wood pulp |
| CN102212979A (en) * | 2011-05-31 | 2011-10-12 | 华南理工大学 | High-concentration pulp bleaching device |
| CN202107936U (en) * | 2011-05-31 | 2012-01-11 | 华南理工大学 | High density bleaching device for paper pulp |
| CN102242514A (en) * | 2011-06-07 | 2011-11-16 | 华南理工大学 | Paper pulp high density bleaching method |
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| PB01 | Publication | ||
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Application publication date: 20140514 |