CN107881843A - The manufacture craft of cardboard is made using paper mill sludge - Google Patents
The manufacture craft of cardboard is made using paper mill sludge Download PDFInfo
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- CN107881843A CN107881843A CN201710972105.7A CN201710972105A CN107881843A CN 107881843 A CN107881843 A CN 107881843A CN 201710972105 A CN201710972105 A CN 201710972105A CN 107881843 A CN107881843 A CN 107881843A
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- Prior art keywords
- sludge
- paper mill
- mill sludge
- cardboard
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/01—Waste products, e.g. sludge
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- Treatment Of Sludge (AREA)
- Paper (AREA)
Abstract
The present invention relates to a kind of manufacture craft that cardboard is made using paper mill sludge, it is comprised the following steps that：(1) paper making sludge deodorization is handled；(2) sludge condensation；(3) sludge dewatering；(4) slurry makes；(5) cardboard is molded；(6) squeezing drying；Wherein, the concrete operation method of step (2) is：Paper mill sludge after step (1) deodorizing process is delivered in sedimentation basin, 3 5% cetyl trimethylammonium bromide for accounting for paper mill sludge oven dry weight is added into paper mill sludge, low whipping speed is under 250 300r/min, stirs 120s 150s；Then 5 10% PAMC for accounting for paper mill sludge oven dry weight is added in paper mill sludge again, carries out sludge gravity concentration, the present invention prepares cardboard by raw material of paper mill sludge, solves the problems, such as paper mill sludge secondary pollution.
Description
Technical field
The present invention relates to a kind of manufacture craft that cardboard is made using paper mill sludge.
Background technology
The sludge quantity of pulping wastewater treatment is big, usually the 5~10 of same size municipal sewage plant times.According to investigations,
Sludge quantity caused by the annual enterprises in pulp and paper industry in China is about 5,000,000 tons.At present, the processing method of paper mill sludge is mostly using dirt
Buried after mud dewaterer is de- dry, such a processing method dewatering efficiency is low, it is costly, waste land resource and be also easy to produce secondary dirt
Dye.
The content of the invention
It is an object of the invention to provide a kind of technique is simple, the high system that cardboard is made using paper mill sludge of production efficiency
Make technique.
The purpose of the present invention is achieved through the following technical solutions：A kind of manufacture craft that cardboard is made using paper mill sludge,
It is comprised the following steps that：
(1) paper making sludge deodorization is handled；(2) sludge condensation；(3) sludge dewatering；(4) slurry makes；(5) cardboard is molded；
(6) squeezing drying；
Wherein, the concrete operation method of step (2) is：It is heavy that paper mill sludge after step (1) deodorizing process is delivered to
In the pond of shallow lake, the cetyl trimethylammonium bromide for the 3-5% for accounting for paper mill sludge oven dry weight is added into paper mill sludge, is being stirred
Speed is under 250-300r/min, stirs 120s-150s；Then added again in paper mill sludge and account for paper mill sludge oven dry weight
5-10% PAMC, low whipping speed are under 250-300r/min, continue to stir 120s-150s, then stand
24-48h carries out sludge gravity concentration.
For prior art, the advantage of the invention is that：The present invention prepares cardboard by raw material of paper mill sludge, to making
Paper sludge carries out recycling, thoroughly solves the problems, such as paper mill sludge secondary pollution, has saved land resource；In addition, this
The operating procedure of invention is simple, and production cost is low and paper board strength produced by the present invention is high, good toughness.Inventive step (2) energy
Paper mill sludge is quickly reunited flocculation, accelerate the sinking speed of paper mill sludge, while beneficial to the dehydration of paper mill sludge, allow step
(5) the cardboard moisture content obtained is low, reduces the energy that baking needed is squeezed for step (6).
Embodiment
Present invention is described in detail with reference to embodiment：
A kind of manufacture craft that cardboard is made using paper mill sludge, it is comprised the following steps that：
(1) paper making sludge deodorization is handled；(2) sludge condensation；(3) sludge dewatering；(4) slurry makes；(5) cardboard is molded；
(6) squeezing drying；
Wherein, the concrete operation method of step (1) is：By the sludge of paper mill preliminary sedimentation tank and two sinking Jing Guo biochemical treatment
The sludge in pond is first well mixed, and deodorant is then added in the paper mill sludge mixed carries out oxidation deodorization；When wherein aoxidizing
Between control in 30-40min, the addition of deodorant is 15-20mg/L.
The mixture of one or both of the deodorant for hydrogen peroxide, in potassium permanganate.
The concrete operation method of step (2) is：Paper mill sludge after step (1) deodorizing process is delivered to sedimentation basin
In, into paper mill sludge add account for paper mill sludge oven dry weight 3-5% cetyl trimethylammonium bromide, low whipping speed
Under 250-300r/min, to stir 120s-150s；Then the 5- for accounting for paper mill sludge oven dry weight is added in paper mill sludge again
10% PAMC, low whipping speed are under 250-300r/min, continue to stir 120s-150s, then stand 24-
48h carries out sludge gravity concentration.
Step (2) of the present invention makes paper mill sludge quick using cetyl trimethylammonium bromide and PAMC
Sedimentation, the efficiency of gravity concentration is improved, while beneficial to the dehydration of paper mill sludge, the substantial amounts of energy has been saved for subsequent operation.
The concrete operation method of step (3) is：Paper mill sludge after concentration is carried out using belt type sludge filter press
Dehydration.
The concrete operation method of step (4) is：It will be put into through the sludge after step (3) dehydration in sludge storage pool, in dirt
It is under 180-200r/min that water and low whipping speed are added in mud storage pool, stirs 60s-80s, it is 10- to reconcile into solid content
15% sludge suspension liquid；Afterwards, the cotton linter for the 15-20% for accounting for paper mill sludge oven dry weight is added, low whipping speed is
Under 180-200r/min, 80s-100s is stirred；And then add the daiamid epoxy for the 5-8% for accounting for paper mill sludge oven dry weight
Chloropropane resin, then low whipping speed are under 180-200r/min, and stirring 80s-100s obtains slurry；Wherein, daiamid epoxy chlorine
The solid content of propane resin is 10-15%.
In order to improve the toughness of cardboard and intensity, improve the adhesive fastness of paper mill sludge, the present invention adds in paper mill sludge
Enter cotton linter and polyamine epichlorohydrin resin carries out reinforcement.
The concrete operation method of step (5) is：By slurry made from step (4) be transported in paperboard forming device carry out into
Type, the aqueous cardboard that moisture content is 40%-50% is made.
The concrete operation method of step (6) is：Aqueous cardboard made from (5) is moved into squeezing dryer, in 0.8-
High pressure shape under 1.0Mpa pressure, high temperature dries 10-15 minutes at a temperature of 95-100 DEG C.
Embodiment one：
A kind of manufacture craft that cardboard is made using paper mill sludge, it is comprised the following steps that：
(1) paper making sludge deodorization is handled；(2) sludge condensation；(3) sludge dewatering；(4) slurry makes；(5) cardboard is molded；
(6) squeezing drying；
Wherein, the concrete operation method of step (1) is：By the sludge of paper mill preliminary sedimentation tank and two sinking Jing Guo biochemical treatment
The sludge in pond is first well mixed, and deodorant is then added in the paper mill sludge mixed carries out oxidation deodorization；When wherein aoxidizing
Between control in 30min, the addition of deodorant is 20mg/L.
The mixture of one or both of the deodorant for hydrogen peroxide, in potassium permanganate.
The concrete operation method of step (2) is：Paper mill sludge after step (1) deodorizing process is delivered to sedimentation basin
In, 3% cetyl trimethylammonium bromide for accounting for paper mill sludge oven dry weight is added into paper mill sludge, low whipping speed is
Under 300r/min, 120s is stirred；Then add again in paper mill sludge and account for 10% cation of paper mill sludge oven dry weight and gather
Acrylamide, low whipping speed are under 250r/min, continue to stir 150s, then stand 24h and carry out sludge gravity concentration.
The concrete operation method of step (3) is：Paper mill sludge after concentration is carried out using belt type sludge filter press
Dehydration.
The concrete operation method of step (4) is：It will be put into through the sludge after step (3) dehydration in sludge storage pool, in dirt
It is under 180r/min that water and low whipping speed are added in mud storage pool, stirs 80s, reconciles into the sludge suspension that solid content is 10%
Liquid；Afterwards, 20% cotton linter for accounting for paper mill sludge oven dry weight is added, low whipping speed is under 180r/min, stirs 100s；
And then 5% polyamine epichlorohydrin resin for accounting for paper mill sludge oven dry weight is added, then low whipping speed is 200r/
Under min, stirring 80s obtains slurry；Wherein, the solid content of polyamine epichlorohydrin resin is 15%.
The concrete operation method of step (5) is：By slurry made from step (4) be transported in paperboard forming device carry out into
Type, the aqueous cardboard that moisture content is 40% is made.
The concrete operation method of step (6) is：Aqueous cardboard made from (5) is moved into squeezing dryer, in 0.8Mpa
Pressure under high pressure shape, at a temperature of 100 DEG C high temperature dry 10 minutes.
Embodiment two：
A kind of manufacture craft that cardboard is made using paper mill sludge, it is comprised the following steps that：
(1) paper making sludge deodorization is handled；(2) sludge condensation；(3) sludge dewatering；(4) slurry makes；(5) cardboard is molded；
(6) squeezing drying；
Wherein, the concrete operation method of step (1) is：By the sludge of paper mill preliminary sedimentation tank and two sinking Jing Guo biochemical treatment
The sludge in pond is first well mixed, and deodorant is then added in the paper mill sludge mixed carries out oxidation deodorization；When wherein aoxidizing
Between control in 40min, the addition of deodorant is 15mg/L.
The mixture of one or both of the deodorant for hydrogen peroxide, in potassium permanganate.
The concrete operation method of step (2) is：Paper mill sludge after step (1) deodorizing process is delivered to sedimentation basin
In, 5% cetyl trimethylammonium bromide for accounting for paper mill sludge oven dry weight is added into paper mill sludge, low whipping speed is
Under 250r/min, 150s is stirred；Then 5% cation poly- third for accounting for paper mill sludge oven dry weight is added in paper mill sludge again
Acrylamide, low whipping speed are under 300r/min, continue to stir 120s, then stand 48h and carry out sludge gravity concentration.
The concrete operation method of step (3) is：Paper mill sludge after concentration is carried out using belt type sludge filter press
Dehydration.
The concrete operation method of step (4) is：It will be put into through the sludge after step (3) dehydration in sludge storage pool, in dirt
It is under 200r/min that water and low whipping speed are added in mud storage pool, stirs 60s, reconciles into the sludge suspension that solid content is 15%
Liquid；Afterwards, 15% cotton linter for accounting for paper mill sludge oven dry weight is added, low whipping speed is under 200r/min, stirs 80s；
And then 8% polyamine epichlorohydrin resin for accounting for paper mill sludge oven dry weight is added, then low whipping speed is 180r/
Under min, stirring 100s obtains slurry；Wherein, the solid content of polyamine epichlorohydrin resin is 10%.
The concrete operation method of step (5) is：By slurry made from step (4) be transported in paperboard forming device carry out into
Type, the aqueous cardboard that moisture content is 50% is made.
The concrete operation method of step (6) is：Aqueous cardboard made from (5) is moved into squeezing dryer, in 1.0Mpa
Pressure under high pressure shape, at a temperature of 95 DEG C high temperature dry 15 minutes.
Embodiment three：
A kind of manufacture craft that cardboard is made using paper mill sludge, it is comprised the following steps that：
(1) paper making sludge deodorization is handled；(2) sludge condensation；(3) sludge dewatering；(4) slurry makes；(5) cardboard is molded；
(6) squeezing drying；
Wherein, the concrete operation method of step (1) is：By the sludge of paper mill preliminary sedimentation tank and two sinking Jing Guo biochemical treatment
The sludge in pond is first well mixed, and deodorant is then added in the paper mill sludge mixed carries out oxidation deodorization；When wherein aoxidizing
Between control in 35min, the addition of deodorant is 18mg/L.
The mixture of one or both of the deodorant for hydrogen peroxide, in potassium permanganate.
The concrete operation method of step (2) is：Paper mill sludge after step (1) deodorizing process is delivered to sedimentation basin
In, 4% cetyl trimethylammonium bromide for accounting for paper mill sludge oven dry weight is added into paper mill sludge, low whipping speed is
Under 280r/min, 130s is stirred；Then 8% cation poly- third for accounting for paper mill sludge oven dry weight is added in paper mill sludge again
Acrylamide, low whipping speed are under 280r/min, continue to stir 130s, then stand 36h and carry out sludge gravity concentration.
The concrete operation method of step (3) is：Paper mill sludge after concentration is carried out using belt type sludge filter press
Dehydration.
The concrete operation method of step (4) is：It will be put into through the sludge after step (3) dehydration in sludge storage pool, in dirt
It is under 190r/min that water and low whipping speed are added in mud storage pool, stirs 70s, reconciles into the sludge suspension that solid content is 12%
Liquid；Afterwards, 18% cotton linter for accounting for paper mill sludge oven dry weight is added, low whipping speed is under 190r/min, stirs 90s；
And then 6% polyamine epichlorohydrin resin for accounting for paper mill sludge oven dry weight is added, then low whipping speed is 190r/
Under min, stirring 90s obtains slurry；Wherein, the solid content of polyamine epichlorohydrin resin is 12%.
The concrete operation method of step (5) is：By slurry made from step (4) be transported in paperboard forming device carry out into
Type, the aqueous cardboard that moisture content is 45% is made.
The concrete operation method of step (6) is：Aqueous cardboard made from (5) is moved into squeezing dryer, in 1.0Mpa
Pressure under high pressure shape, at a temperature of 98 DEG C high temperature dry 12 minutes.
Claims (7)
- A kind of 1. manufacture craft that cardboard is made using paper mill sludge, it is characterised in that：It is comprised the following steps that：(1) paper making sludge deodorization is handled；(2) sludge condensation；(3) sludge dewatering；(4) slurry makes；(5) cardboard is molded；(6) press Squeeze drying；Wherein, the concrete operation method of step (2) is：Paper mill sludge after step (1) deodorizing process is delivered to sedimentation basin In, into paper mill sludge add account for paper mill sludge oven dry weight 3-5% cetyl trimethylammonium bromide, low whipping speed Under 250-300r/min, to stir 120s-150s；Then the 5- for accounting for paper mill sludge oven dry weight is added in paper mill sludge again 10% PAMC, low whipping speed are under 250-300r/min, continue to stir 120s-150s, then stand 24- 48h carries out sludge gravity concentration.
- 2. the manufacture craft according to claim 1 that cardboard is made using paper mill sludge, it is characterised in that：Step (1) Concrete operation method is：The sludge of the sludge of paper mill preliminary sedimentation tank and second pond Jing Guo biochemical treatment is first well mixed, connect The addition deodorant in the paper mill sludge mixed and carry out oxidation deodorization；Wherein oxidization time control is in 30-40min, deodorization The addition of agent is 15-20mg/L.
- 3. the manufacture craft according to claim 2 that cardboard is made using paper mill sludge, it is characterised in that：The deodorant For the mixture of the one or both in hydrogen peroxide, potassium permanganate.
- 4. the manufacture craft according to claim 1 that cardboard is made using paper mill sludge, it is characterised in that：Step (3) Concrete operation method is：Paper mill sludge after concentration is dehydrated using belt type sludge filter press.
- 5. the manufacture craft according to claim 1 that cardboard is made using paper mill sludge, it is characterised in that：Step (4) Concrete operation method is：Will be through in the sludge input sludge storage pool after step (3) dehydration, water be added simultaneously in sludge storage pool Low whipping speed is under 180-200r/min, stirs 60s-80s, reconciles into the sludge suspension liquid that solid content is 10-15%；It Afterwards, the cotton linter for the 15-20% for accounting for paper mill sludge oven dry weight is added, low whipping speed is stirring under 180-200r/min 80s-100s；And then the polyamine epichlorohydrin resin for the 5-8% for accounting for paper mill sludge oven dry weight is added, then stirring Speed is under 180-200r/min, and stirring 80s-100s obtains slurry；Wherein, the solid content of polyamine epichlorohydrin resin is 10-15%.
- 6. the manufacture craft according to claim 1 that cardboard is made using paper mill sludge, it is characterised in that：Step (5) Concrete operation method is：Slurry made from step (4) is transported in paperboard forming device and is molded, obtained moisture content is 40%-50% aqueous cardboard.
- 7. the manufacture craft according to claim 1 that cardboard is made using paper mill sludge, it is characterised in that：Step (6) Concrete operation method is：Aqueous cardboard made from (5) is moved into squeezing dryer, high pressure is determined under 0.8-1.0Mpa pressure Type, high temperature dries 10-15 minutes at a temperature of 95-100 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710972105.7A CN107881843A (en) | 2017-10-18 | 2017-10-18 | The manufacture craft of cardboard is made using paper mill sludge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710972105.7A CN107881843A (en) | 2017-10-18 | 2017-10-18 | The manufacture craft of cardboard is made using paper mill sludge |
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| Publication Number | Publication Date |
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| CN107881843A true CN107881843A (en) | 2018-04-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710972105.7A Pending CN107881843A (en) | 2017-10-18 | 2017-10-18 | The manufacture craft of cardboard is made using paper mill sludge |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116145459A (en) * | 2023-02-24 | 2023-05-23 | 湖南康业生物科技有限公司 | Papermaking method by utilizing recycled sludge |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101784722A (en) * | 2007-06-28 | 2010-07-21 | 巴科曼实验室国际公司 | Use of cyclodextrins for odor control in papermaking sludges, and deodorized sludge and products |
| CN102452785A (en) * | 2011-12-19 | 2012-05-16 | 陕西科技大学 | Effective dehydrating method for paper mill sludge |
| CN102493287A (en) * | 2011-12-08 | 2012-06-13 | 南京博方生物科技有限公司 | Method for producing plate by fiber-containing sludge and application thereof |
| CN103711041A (en) * | 2014-01-13 | 2014-04-09 | 河北嘉诚环境工程有限公司 | Method for producing hard fiberboard through paper mill sludge |
| CN106927654A (en) * | 2015-12-29 | 2017-07-07 | 浙江鑫丰特种纸业股份有限公司 | A kind of paper mill sludge resource utilization system and its method |
-
2017
- 2017-10-18 CN CN201710972105.7A patent/CN107881843A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101784722A (en) * | 2007-06-28 | 2010-07-21 | 巴科曼实验室国际公司 | Use of cyclodextrins for odor control in papermaking sludges, and deodorized sludge and products |
| CN102493287A (en) * | 2011-12-08 | 2012-06-13 | 南京博方生物科技有限公司 | Method for producing plate by fiber-containing sludge and application thereof |
| CN102452785A (en) * | 2011-12-19 | 2012-05-16 | 陕西科技大学 | Effective dehydrating method for paper mill sludge |
| CN103711041A (en) * | 2014-01-13 | 2014-04-09 | 河北嘉诚环境工程有限公司 | Method for producing hard fiberboard through paper mill sludge |
| CN106927654A (en) * | 2015-12-29 | 2017-07-07 | 浙江鑫丰特种纸业股份有限公司 | A kind of paper mill sludge resource utilization system and its method |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116145459A (en) * | 2023-02-24 | 2023-05-23 | 湖南康业生物科技有限公司 | Papermaking method by utilizing recycled sludge |
| CN116145459B (en) * | 2023-02-24 | 2023-12-26 | 湖南康业生物科技有限公司 | Papermaking method by utilizing recycled sludge |
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Application publication date: 20180406 |
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