CN1303141C - Method for recycling paper and plastic from waste product of one-off paper and plastic health aids - Google Patents
Method for recycling paper and plastic from waste product of one-off paper and plastic health aids Download PDFInfo
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- CN1303141C CN1303141C CNB200310108266XA CN200310108266A CN1303141C CN 1303141 C CN1303141 C CN 1303141C CN B200310108266X A CNB200310108266X A CN B200310108266XA CN 200310108266 A CN200310108266 A CN 200310108266A CN 1303141 C CN1303141 C CN 1303141C
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/50—Improvements relating to the production of bulk chemicals
- Y02P20/582—Recycling of unreacted starting or intermediate materials
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/62—Plastics recycling; Rubber recycling
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- Processing Of Solid Wastes (AREA)
- Separation, Recovery Or Treatment Of Waste Materials Containing Plastics (AREA)
Abstract
The present invention relates to a paper and plastic regenerating method for waste materials of disposable paper and plastic sanitary articles. The method comprises the steps that waste materials of the disposable paper and plastic sanitary articles are used as raw materials, a heat transfer oil heating system is used, a proper chemical reagent, namely perchlorethylene is added to the raw materials, the raw materials are processed by a stirrer, a separator, etc. to dissolve plastic components in liquid, and solid-liquid separation is carries out; then, pulp in a solid part is dewatered and dried, mixed liquid which contains plastic is distilled and dried, pulp raw materials and injection molding raw materials are respectively obtained, and the chemical reagent can be recycled. The technology of the present invention has the advantages of no environmental pollution, favorable economic benefit and large development space.
Description
Technical field
The invention belongs to environmental protection and field of energy-saving technology.The waste material that is specifically related to a kind of disposable paper sanitary product carries out paper regenerated method.
Technical background
Along with improving constantly of the continuous development of China's industry and scientific and technological level, living standards of the people, disposable paper sanitary product quantity constantly increases, " diaper " diaper of using as sanitary pad, the daily life of woman article etc.Produce a large amount of waste materials in the production process of these products, the plastics in the waste material can produce a large amount of white pollutions to environment.At present waste material is adopted the method that adds thermal incineration, both wasted starting material, produce a large amount of obnoxious flavoures during again because of burning and polluted human atmospheric environment of depending on for existence.People expect to have a kind of paper sanitary product waste material that utilizes and carry out the paper regenerating technique, and making it turns waste into wealth, and obtains the required reclaimed materials of industry such as papermaking, plastics, reduce topsoil simultaneously again.
Summary of the invention
The objective of the invention is to propose a kind of waste material of disposable paper sanitary product that utilizes and carry out paper regenerated method.
The paper renovation process of the disposable paper sanitary product waste material that the present invention proposes is that the leftover bits with disposable paper sanitary product are raw material, and its technical process is seen shown in Figure 1, and concrete steps are as follows:
(1) utilizes heat-conducting oil heating system, the temperature of chemical reagent and various relevant devices is risen to 80 ℃-150 ℃;
(2) the paper waste material is put into agitator 1, add the chemical reagent zellon again, its add-on is paper waste material weight 15-25 times, and temperature is 90 ℃-110 ℃, enters in the separator 2 after the full and uniform stirring (being generally 15-20 minute);
(3) adjust the rotating speed of separator 2, and be controlled at 200-450 rev/min, make solid-liquid separation.Mainly contain the plastic components of waste material in the liquid, solid part is mainly pulp material.The further employing of solid part taken off liquid technology, remove residual liquid, the content that makes liquid is delivered to cleanser 3 with solid paper pulp then between 15%-25%, and isolated liquid enters still kettle and reclaims;
(4) in stirring and washing device 3, add the chemical reagent zellon, its add-on is paper pulp weight 10-20 times, temperature is 90 ℃-110 ℃, fully stir, remaining plastics are further absorbed in the paper pulp, the content of plastics in the paper pulp is controlled in the scope of paper technology regulation, enters again in the separator 4;
(5) rotating speed of adjustment separator 4, it is controlled at 350-600 rev/min, further take off liquid, time is 15-30 minute, remove liquid residual in the paper pulp (vacuum tightness generally can be controlled in 0-0.7Mpa, and temperature is controlled at 80 ℃-120 ℃) with heating under vacuum again, when the content of liquid in the paper pulp is lower than 10% left and right sides, paper pulp is delivered to baking oven 8 carries out drying, then packing.Vaporized gas (containing the reagent composition) is sent into liquid storage cylinder 9 after reclaiming, and liquid is sent into clear liquid tube 6, carries out next circulation;
(6) mixing liquid that contains plastics in the separator 2 enters mixing drum, again the mixing liquid that contains plastics in the mixing drum is sent into still kettle, carry out vacuum distilling (vacuum tightness generally is controlled at 0-0.3MPa, temperature is controlled at 100 ℃-130 ℃), the zellon gas that distills out in the mixing liquid is recycled after reclaiming through condenser condenses, liquid storage cylinder.When the liquid-solid ratio concentration that contains the mixing liquid of chemical reagent and plastics when still kettle reaches and is about 3: 7, put it into vacuum drying oven and carry out fractionation by distillation;
(7) vacuum tightness of adjustment vacuum drying oven 10 is that 0.3-0.8MPa, temperature are 90 ℃-110 ℃, makes the chemical reagent evaporation through heating under vacuum, and reagent gas is recycled after reclaiming by vacuum pump, condenser, liquid storage cylinder.Remaining is plastic powders, packs processing.
Among the present invention, the vacuum condensation retrieving arrangement adopts the condenser of two kinds of condensing modes of secondary.First step horizontal condenser carries out precooling, and the reagent after the precooling enters second stage vertical disc tubular(surface)condenser and further cools off, and utilizes the difference of altitude of vertical (type) condenser to lean on the gravity of liquid to overcome resistance to flow, reduces the vacuum pump power consumption.
In order to reduce the spontaneous evaporation of chemical reagent, in the liquid storage cylinder that vacuum reclaims, a kind of tightness system can be set, to have improved the rate of recovery of reagent.The rate of recovery can reach more than 99%, thereby can reduce production costs.
Among the present invention, agitator can carry out stepless speed regulation, and agitator blades can move flexibly, and the solubleness of waste material is reached more than 99.9%.
Technology of the present invention is to be similar in the airtight system one to finish, and the no three wastes produce, and more can not pollute environment.Have good economic benefit and great development space.
Description of drawings
Fig. 1 is a process flow diagram.
Number in the figure: 1 is agitator, and 2 is separator, and 3 is cleanser, and 4 is separator, and 5 is mixing drum, and 6 is the clear liquid tube, and 7 are the distillation condenser system, and 8 is the paper pulp baking oven, and 9 is liquid storage cylinder, and 10 is plastic oven.
Embodiment
Specific design of the present invention is relevant with the kind and the day output of waste material with operating parameter.
If one require that the waste material day output is about 1 ton, its paper ratio is 6: 4 waste material, the power of process furnace be 300,000 kilocalories/time about, agitator, water trap volume are 0.5m
3About, paper pulp baking oven volume is 9m
3About, the plastic oven volume is 4m
3About, the reactor volume is 2m
3About, the still kettle volume is 5m
3About, vacuum pump power is that 3kW left and right sides concrete steps are:
1) system is heated to 80 ℃-150 ℃.
2) the paper waste material is put into agitator 1, in agitator 1, put into the reagent stirring and heat, again material is put into separator 2.
3) adjust separator 2 rotating speeds, make solid-liquid separation, send into stirring and washing device 3 and still kettle respectively.
4) in stirring and washing device 3, put into 100 ℃ of left and right sides reagent, plastics remaining in the paper pulp are further absorbed, put into separator 4 after fully stirring.
5) adjust the rotating speed of separator 4, solid paper pulp is taken off liquid, vacuum-drying, and be delivered to liquid storage cylinder after vaporized gas reclaimed and carry out next circulation.
6) mixing liquid in the separator 2 is delivered to mixing drum, still kettle is distilled, and reclaims zellon reagent.The dope body is put into vacuum drying oven and fractionation by distillation.
7) adjust oven temperature pressure, make reagent evaporation in the plastics, recycle after its gas recovery, plastic powders and piece are packed respectively.
If two require that the waste material day output is about 2 tons, its paper ratio is 6: 4 waste material, the power of process furnace be 450,000 kilocalories/time about, agitator, water trap volume are 1.5m
3About, paper pulp baking oven volume is 12m
3About, the plastic oven volume is 6m
3About, the reactor volume is 4m
3About, the still kettle volume is 10m
3About, vacuum pump power is about 5kW.Improve the power and the suitable temperature that improves deep fat of vacuum pump, can improve the day output of waste material.Concrete steps can be produced qualified product in method one slightly together equally.
The day output of waste material is big more, and economic benefit is high more.Its design and operating parameter serve as with reference to redesigning with the day output of 1 ton waste material.
Claims (3)
1, a kind of paper renovation process of disposable paper sanitary product waste material is a raw material with the leftover bits of disposable paper sanitary product, it is characterized in that concrete steps are as follows:
(1) utilizes heat-conducting oil heating system, the temperature of chemical reagent and various relevant devices is risen to 80 ℃-150 ℃;
(2) the paper waste material is put into agitator (1), added the chemical reagent zellon again, its add-on is paper waste material weight 15-25 times, and temperature is 90 ℃-110 ℃, enters after the full and uniform stirring in the separator (2);
(3) rotating speed of adjustment separator (2), and be controlled at 200-450 rev/min, make solid-liquid separation, the further employing of solid part taken off liquid technology, remove residual liquid, the content that makes liquid is delivered to solid paper pulp cleanser (3) then between 15%-25%, isolated liquid enters still kettle and reclaims;
(4) in stirring and washing device (3), add the chemical reagent zellon, its add-on is paper pulp weight 10-20 times, temperature is 90 ℃-110 ℃, fully stir, remaining plastics are further absorbed in the paper pulp, the content of plastics in the paper pulp is controlled in the scope of paper technology regulation, enters again in the separator (4);
(5) rotating speed of adjustment separator (4) is controlled at 350-600 rev/min with it, further takes off liquid, time is 15-30 minute, removes liquid residual in the paper pulp with heating under vacuum again, when the content of liquid in the paper pulp is lower than 10%, paper pulp is delivered to baking oven (8) carries out drying, then packing; Vaporized gas is sent into liquid storage cylinder (9) after reclaiming, and liquid is sent into clear liquid tube (6), carries out next circulation;
(6) mixing liquid that contains plastics in the separator (2) enters mixing drum, again the mixing liquid that contains plastics in the mixing drum is sent into still kettle, carry out vacuum distilling, the zellon gas that distills out in the mixing liquid is recycled after reclaiming through condenser condenses, liquid storage cylinder; When the liquid-solid ratio concentration that contains the mixing liquid of chemical reagent and plastics when still kettle is reached for 3: 7, puts it into vacuum drying oven and carry out fractionation by distillation;
(7) vacuum tightness of adjustment vacuum drying oven (10) is that 0.3-0.8MPa, temperature are 90 ℃-110 ℃, makes the chemical reagent evaporation through heating under vacuum, and gas is recycled after reclaiming by vacuum pump, condenser, liquid storage cylinder, and remaining is plastic powders, packs processing.
2, paper renovation process according to claim 1, the vacuum degree control when it is characterized in that heating under vacuum in the step (5) is at 0-0.7MPa, and temperature is controlled at 80-120 ℃.
3, paper renovation process according to claim 1, the vacuum degree control when it is characterized in that vacuum distilling in the step (6) is at 0-0.3MPa, and temperature is controlled at 100-130 ℃.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200310108266XA CN1303141C (en) | 2003-10-30 | 2003-10-30 | Method for recycling paper and plastic from waste product of one-off paper and plastic health aids |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB200310108266XA CN1303141C (en) | 2003-10-30 | 2003-10-30 | Method for recycling paper and plastic from waste product of one-off paper and plastic health aids |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1539869A CN1539869A (en) | 2004-10-27 |
| CN1303141C true CN1303141C (en) | 2007-03-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200310108266XA Expired - Fee Related CN1303141C (en) | 2003-10-30 | 2003-10-30 | Method for recycling paper and plastic from waste product of one-off paper and plastic health aids |
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| Country | Link |
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| CN (1) | CN1303141C (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63182487A (en) * | 1987-01-21 | 1988-07-27 | 静岡県 | Deinking treatment of old data recording paper |
| JPH0762137A (en) * | 1993-08-30 | 1995-03-07 | Shigetomi Komatsu | Method of recovering polystyrene waste nd apparatus for dissolving polystyrene waste |
| CN1400063A (en) * | 2002-08-30 | 2003-03-05 | 韦士钱 | Paper-plastic leftover material separation process |
-
2003
- 2003-10-30 CN CNB200310108266XA patent/CN1303141C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63182487A (en) * | 1987-01-21 | 1988-07-27 | 静岡県 | Deinking treatment of old data recording paper |
| JPH0762137A (en) * | 1993-08-30 | 1995-03-07 | Shigetomi Komatsu | Method of recovering polystyrene waste nd apparatus for dissolving polystyrene waste |
| CN1400063A (en) * | 2002-08-30 | 2003-03-05 | 韦士钱 | Paper-plastic leftover material separation process |
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| Publication number | Publication date |
|---|---|
| CN1539869A (en) | 2004-10-27 |
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Granted publication date: 20070307 Termination date: 20091130 |