CN1206046C - Method for recovering waste and disposable paper diaper or faminine napkin - Google Patents
Method for recovering waste and disposable paper diaper or faminine napkin Download PDFInfo
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- CN1206046C CN1206046C CN 02130729 CN02130729A CN1206046C CN 1206046 C CN1206046 C CN 1206046C CN 02130729 CN02130729 CN 02130729 CN 02130729 A CN02130729 A CN 02130729A CN 1206046 C CN1206046 C CN 1206046C
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- silica gel
- cellulose
- gel material
- desanding
- water
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Abstract
The present invention relates to a method for circularly recovering and separating cellulose and plastics from disposable non-woven cellulose sanitary articles. The method comprises: first, pulping raw materials to separate plastics from cellulose; then, thoroughly separating the cellulose from the plastics and other impurities by stirring and desanding twice, and circularly using the cellulose. The method has the advantages of simple steps, convenient operation and economy and utility, changes waste into valuable and beautifies the environment.
Description
Invention field
The present invention relates to the circulation recovery and the separation method of waste and old disposable use paper nappy or sanitary napkin etc.Particularly, the present invention relates to the circular treatment and the recovery of the plain amenities of underproof or expired disposable paper nappy or other non-woven fibers, the raw material of recovery such as the cellulose of compacted form and plastics can change into useful product.
Background technology
Disposable paper nappy and sanitary napkin are mainly made by AGM (Absorbent Gelling Materials: water imbibition silica gel material, i.e. macromolecule super-strong moisture absorbing pearl), cellulose (referring to cotton or paper) and plastics.AGM and cellulose merge the soft super-strong moisture absorbing medium in inside of making paper nappy or sanitary napkin etc., and plastics are outside moistureproof waddings of paper nappy or sanitary napkin etc.The use of disposable paper diaper and sanitary napkin now is very universal, because they are just thrown away after using once, processing method of the prior art is normally with its local landfill or burning.This processing method is not only a kind of waste, and influence and harm environment.Producing paper nappy and sanitary napkin needs disafforestation to obtain essential fiber, has taken the landfill soil after they go out of use again.Therefore, disposable paper diaper and sanitary napkin etc. is recycled be very important.The inventor passes through exploration and research for many years, develops simple, the economical and practical method of contracture from papery discarded objects such as disposable paper diaper and sanitary napkins that loop back of a kind of step.
Goal of the invention
The purpose of this invention is to provide a kind of contracture that loops back from the cellulose of the plain amenities of disposable non-woven fiber and the method for plastic components.
Summary of the invention
Method of the present invention be with discarded object by adding water making beating, vibration, desanding, AGM, cellulose and plastic sheet in the discarded object are thoroughly separated, with the photosynthetic degraded of AGM, cellulose and plastic sheet can be reused.This method step is simple, economical and practical, and can carry out cycling continuously.
Particularly, method of the present invention comprises the steps:
A. raw materials such as discarded paper nappy or sanitary napkin are dropped in the beater, add entry and proper amount of silicon hydrochlorate or calcium carbonate, fermentation, making beating is fully decomposed AGM, cellulose, plastic sheet, by beater plastic sheet and AGM and cellulosic mixture is separated;
B.AGM and cellulosic mixture are through the tortuous circulation of precipitation ditch, part AGM and foreign material are deposited in precipitation ditch bottom, another part AGM and cellulosic mixture flow into stirring pool, start mixer, make water, AGM and cellulose fully fused, start and take out pulp grinder, AGM and cellulosic aqueous mixtures are pumped to the sieve hopper that shakes;
C. start the sieve that shakes, start back water pump, make backwater be atomized spray to the screen cloth of the sieve that shakes, not separating completely the plastics fractionlet will here thoroughly be isolated, after cellulose and water leaked screen cloth, flow into AGM in the screening the pulp pond that shakes, by divider wall, make AGM and foreign material natural separation again;
D. start and take out pulp grinder, AGM and cellulosic aqueous mixtures are sent in stirring pool;
E. start the mixer in stirring pool,, be convenient to desanding, start back water pump, backwater is added in stirring pool for reducing AGM and cellulosic concentration;
F. start a desander (AGM, foreign material are separated with cellulose), utilize the centrifugal pump principle,, the cellulose slurry after the desanding is introduced the secondary stirring pool AGM and the desanding of cellulosic aqueous mixtures suction desander in stirring pool;
G. start the mixer in the secondary stirring pool, in case the precipitation of the cellulose slurry after the desanding;
H. AGM that a desanding in the secondary stirring pool is not eliminated and foreign material and cellulosic aqueous mixtures suction secondary desander start the desanding of secondary desander, and AGM and the foreign material that the first time, desanding did not eliminate are thoroughly eliminated;
I. the cellulose slurry of sending here in the secondary desander is passed through cotton separator with cellulose and water initial gross separation, one divider wall in interval in the pond under the cotton separator, intercept melt and dissolved silicate or calcium carbonate, standby in the hope of purifying water, cellulose after cotton separator separates dewaters by dewaterer, water is drawn back cotton water separation tank through water pump, and its middle cotton separator promptly is with the equipment that separates of cellulose with water;
J. the photosynthetic degraded of AGM that a desanding and secondary desanding are obtained;
K. the paper mill is sent in the cellulose pack after will dewatering.
The inventive method can further specify by the process for separating and recovering flow chart in the accompanying drawing.
Description of drawings
Accompanying drawing 1 is the process chart of the inventive method, and it has described technical process of the present invention.
Further specify method of the present invention below by embodiment.It should be understood that embodiments of the invention are to be used to illustrate the present invention rather than limitation of the present invention.Essence according to the present invention all belongs to the scope of protection of present invention to the simple modifications that the present invention carries out.Except as otherwise noted, the percentage among the present invention is percetage by weight.
The specific embodiment
Embodiment 1: leftover pieces or its expired product or defect ware that discarded disposable paper diaper, sanitary napkin and the production line of recycling 100kg gets off
A. raw material is dropped into beater, add suitable quantity of water, add the calcium carbonate of 20%-25% or the silicate of 30%-40%, fermented 2-3 minute, making beating is fully decomposed AGM, cellulose, plastic sheet, by beater plastic sheet and AGM and cellulosic mixture is separated;
B. start mixer in case precipitation is taken out slurry and sent into the sieve that shakes;
C. start the sieve that shakes, AGM is further separated with broken plastic sheet with cellulosic aqueous mixtures, AGM and cellulosic aqueous mixtures then flow in the stock tank;
D. take out slurry, it is delivered to stirring pool one time, add water and stir;
E. send into stirring in the secondary stirring pool with an AGM and a desander desanding of cellulosic aqueous mixtures suction, and with this slurry;
F. with the cellulose slurry suction secondary desander in the secondary stirring pool, start the secondary desander, thoroughly to eliminate AGM and foreign material;
G. the cellulose slurry that the secondary desander is sent here tentatively separates water through cotton separator with cellulose, then cellulose is dewatered through dehydrator, packs standby;
H. the AGM that obtains from twice desanding is by normal temperature and solar radiation, through about 120 days can photosynthetic degraded, cellulose and plastics can reclaim use.
Embodiment 2: the raw material discarded object cycle operation identical with embodiment 1 handled
A. raw material is dropped into beater, add suitable water, add the calcium carbonate of 20%-25%, fermented 2-3 minute, making beating makes plastic sheet separate with cellulosic mixture with AGM;
B. the plastic sheet of separating send plastic molding and processing plant's processing, and AGM and cellulosic mixture then flow through tortuous precipitation ditch, makes a part of AGM and foreign material precipitation, and another part AGM and cellulosic mixture then flow into stock tank;
C. start mixer in case the AGM precipitation starts and takes out pulp grinder, AGM and cellulosic mixture are sent into the sieve hopper that shakes;
D. start the sieve that shakes, AGM is thoroughly separated with broken plastic sheet with cellulosic mixture;
E. start and take out pulp grinder, will pump to a stirring pool by AGM and cellulosic mixture slurry that the sieve that shakes flows in the stock tank;
F. start mixer, in case AGM and cellulosic mixture precipitation;
G. start a desander desanding, and the cellulose slurry after the desanding is sent in the secondary stirring pool;
H. start mixer, cellulose slurry is further dissolved, so that the secondary desanding starts the secondary desander, with the thorough desanding of cellulose slurry suction desander after dissolving;
I. with the cellulose slurry after the secondary desanding through cotton separator tentatively with cellulose and moisture from;
J. will send into the dewaterer dehydration from the cellulose that cotton separator is told, pack standby.
The per hour recyclable processing of this circular treatment operation 160-200kg discarded object is suitable for focusing on discarded object.
Claims (2)
1. one kind is separated recovery waste and old disposable paper nappy or the cellulose of sanitary napkin and the method for plastic components, comprises the steps:
A. discarded paper nappy or sanitary napkin raw material are dropped in the beater, add entry and proper amount of silicon hydrochlorate or calcium carbonate, fermentation, making beating, water imbibition silica gel material, cellulose, plastic sheet are fully decomposed, plastic sheet and water imbibition silica gel material and cellulosic mixture are separated by beater;
B. water imbibition silica gel material and cellulosic mixture are through the tortuous circulation of precipitation ditch, part water imbibition silica gel material and foreign material are deposited in precipitation ditch bottom, another part water imbibition silica gel material and cellulosic mixture flow into stirring pool, start mixer, make water, water imbibition silica gel material and cellulose fully fused, start and take out pulp grinder, water imbibition silica gel material and cellulosic aqueous mixtures are pumped to the sieve hopper that shakes;
C. start the sieve that shakes, start back water pump, make backwater be atomized spray to the screen cloth of the sieve that shakes, not separating completely the plastics fractionlet will here thoroughly be isolated, after cellulose and water leaked screen cloth, flow into the water imbibition silica gel material in the screening the pulp pond that shakes, by divider wall, make water imbibition silica gel material and foreign material natural separation again;
D. start and take out pulp grinder, water imbibition silica gel material and cellulosic aqueous mixtures are sent in stirring pool;
E. start the mixer in stirring pool,, be convenient to desanding, start back water pump, backwater is added in stirring pool for reducing water imbibition silica gel material and cellulosic concentration;
F. start desander No. one time, utilize the centrifugal pump principle,, the cellulose slurry after the desanding is introduced the secondary stirring pool water imbibition silica gel material and the desanding of cellulosic aqueous mixtures suction desander in stirring pool;
G. start the mixer in the secondary stirring pool, in case the precipitation of the cellulose slurry after the desanding;
H. water imbibition silica gel material that a desanding in the secondary stirring pool is not eliminated and foreign material and cellulosic aqueous mixtures suction secondary desander start the desanding of secondary desander, and water imbibition silica gel material and the foreign material that the first time, desanding did not eliminate are thoroughly eliminated;
I. the cellulose slurry of sending here in the secondary desander is passed through cotton separator with cellulose and water initial gross separation, one divider wall in interval in the pond under the cotton separator, intercept melt and dissolved silicate or calcium carbonate, standby in the hope of purifying water, cellulose after cotton separator separates dewaters by dewaterer, and water is drawn back cotton water separation tank through water pump;
J. the photosynthetic degraded of water imbibition silica gel material that a desanding and secondary desanding are obtained;
K. the paper mill is sent in the cellulose pack after will dewatering.
2. according to the method for claim 1, comprise the following steps: wherein:
In step a, add the calcium carbonate of 20%-25%, the perhaps silicate of 30%-40%, fermentation time is 2-3 minute;
In step j, the water imbibition silica gel material that a desanding and secondary desanding are obtained is by normal temperature and solar radiation, through photosynthetic degraded in 120 days.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02130729 CN1206046C (en) | 2002-09-18 | 2002-09-18 | Method for recovering waste and disposable paper diaper or faminine napkin |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02130729 CN1206046C (en) | 2002-09-18 | 2002-09-18 | Method for recovering waste and disposable paper diaper or faminine napkin |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1483519A CN1483519A (en) | 2004-03-24 |
| CN1206046C true CN1206046C (en) | 2005-06-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02130729 Expired - Fee Related CN1206046C (en) | 2002-09-18 | 2002-09-18 | Method for recovering waste and disposable paper diaper or faminine napkin |
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| Country | Link |
|---|---|
| CN (1) | CN1206046C (en) |
Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20080027290A (en) * | 2005-06-14 | 2008-03-26 | 가부시키가이샤 스파 페이즈 | System and process for reutilization of used paper diapers |
| CN102225415A (en) * | 2011-03-31 | 2011-10-26 | 广州市万绿达集团有限公司 | Recovering and treating method for discarded disposable sanitary products |
| JP5948222B2 (en) * | 2012-11-02 | 2016-07-06 | ユニ・チャーム株式会社 | Separation apparatus and separation method for material related to absorbent article |
| CN103252341B (en) * | 2013-05-20 | 2015-02-25 | 上海绿澄环保科技有限公司 | Recovery processing device of scrap disposable drug sundries and processing method |
| CN105463896A (en) * | 2015-11-11 | 2016-04-06 | 陕西科技大学 | Recycling method of diapers |
| CN105463895A (en) * | 2015-11-11 | 2016-04-06 | 陕西科技大学 | Method for reusing leftover bits and pieces of diaper |
| CN105463897A (en) * | 2015-11-11 | 2016-04-06 | 陕西科技大学 | Papermaking method using diaper absorbent core layer fibers |
| CN106269192B (en) * | 2016-08-31 | 2018-09-28 | 江苏理文造纸有限公司 | Paper-making pulping tailings fiber recovery method |
| JP6465917B2 (en) * | 2017-03-31 | 2019-02-06 | ユニ・チャーム株式会社 | Method for recovering components from used absorbent articles |
-
2002
- 2002-09-18 CN CN 02130729 patent/CN1206046C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1483519A (en) | 2004-03-24 |
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