CN107974872A - The manufacture craft of environment-friendly paperboard - Google Patents
The manufacture craft of environment-friendly paperboard Download PDFInfo
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- CN107974872A CN107974872A CN201710970859.9A CN201710970859A CN107974872A CN 107974872 A CN107974872 A CN 107974872A CN 201710970859 A CN201710970859 A CN 201710970859A CN 107974872 A CN107974872 A CN 107974872A
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- Prior art keywords
- sludge
- paper mill
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- environment
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Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/12—Treatment of sludge; Devices therefor by de-watering, drying or thickening
- C02F11/14—Treatment of sludge; Devices therefor by de-watering, drying or thickening with addition of chemical agents
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21J—FIBREBOARD; MANUFACTURE OF ARTICLES FROM CELLULOSIC FIBROUS SUSPENSIONS OR FROM PAPIER-MACHE
- D21J1/00—Fibreboard
- D21J1/04—Pressing
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2103/00—Nature of the water, waste water, sewage or sludge to be treated
- C02F2103/26—Nature of the water, waste water, sewage or sludge to be treated from the processing of plants or parts thereof
- C02F2103/28—Nature of the water, waste water, sewage or sludge to be treated from the processing of plants or parts thereof from the paper or cellulose industry
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Treatment Of Sludge (AREA)
- Paper (AREA)
Abstract
The present invention relates to a kind of manufacture craft of environment-friendly paperboard, it is comprised the following steps that：(1) paper making sludge deodorization is handled；(2) sludge condensation；(3) sludge dewatering；(4) sludge modification；(5) slurry makes；(6) cardboard is molded；(7) squeezing drying；The concrete operation method of step (4) is：Will be through in the dewatered paper mill sludge input sludge storage pool of step (3), it be under 180 200r/min that water and low whipping speed are added in sludge storage pool, stirs 60s 80s, reconciles into the sludge suspension liquid that solid content is 10 15%；Afterwards, add 5 10% modifying agent for accounting for paper mill sludge oven dry weight, low whipping speed is 180 200r/min, temperature is at 70 80 DEG C, 60s 80s are stirred, the present invention is modified paper mill sludge, improves the reunion performance of sludge, help to form good micelle, promote the removing of water in paper mill sludge.
Description
Technical field
The present invention relates to a kind of manufacture craft of environment-friendly paperboard.
Background technology
The sludge quantity of pulping wastewater treatment is big, is usually 5~10 times of same size municipal sewage plant.According to investigations,
The sludge quantity that the annual enterprises in pulp and paper industry in China produces is about 5,000,000 tons.At present, the processing method of paper mill sludge is mostly using dirt
Mud dewaterer take off it is dry after bury, such a processing method is costly, wastes land resource and is also easy to produce secondary pollution.
The content of the invention
It is an object of the invention to provide the environment-friendly paper that a kind of technique is simple and can rationally be utilized to paper mill sludge
The manufacture craft of case gasket plate.
The purpose of the present invention is achieved through the following technical solutions：A kind of manufacture craft of environment-friendly paperboard, it includes following work
Skill step：
(1) paper making sludge deodorization is handled；(2) sludge condensation；(3) sludge dewatering；(4) sludge modification；(5) slurry makes；
(6) cardboard is molded；(7) squeezing drying；
Wherein, the concrete operation method of step (4) is：Will be through the dewatered paper mill sludge input sludge storage of step (3)
Chi Zhong, it is under 180-200r/min that water and low whipping speed are added in sludge storage pool, stirs 60s-80s, reconciles into and contain admittedly
Measure the sludge suspension liquid for 10-15%；Afterwards, the modifying agent for the 5-10% for accounting for paper mill sludge oven dry weight is added, in stirring speed
It is at 70-80 DEG C to spend for 180-200r/min, temperature, stirs 60s-80s；
Wherein, the modifying agent includes the component of following parts by weight proportioning：30-40 parts of stearic acid, silane coupling agent
15-20 parts of KH560,5-10 parts of Silane coupling agent KH550,5-10 parts of odium stearate.
For the prior art, the advantage of the invention is that：The present invention prepares environment-friendly paperboard by raw material of paper mill sludge,
Recycling is carried out to paper mill sludge, paper mill sludge secondary pollution is thoroughly solved the problems, such as, has saved land resource；Separately
Outside, operating procedure of the invention is simple, and production cost is low.The present invention, is modified paper mill sludge, substantially increases sludge
Reunion performance, helps to form good micelle, is greatly promoted the removing of water in paper mill sludge so that gained in step (6)
Cardboard moisture content it is low, reduce step (7) squeezing baking needed the energy.
Embodiment
Present invention is described in detail with reference to embodiment：
A kind of manufacture craft of environment-friendly paperboard, it is comprised the following steps that：
(1) paper making sludge deodorization is handled；(2) sludge condensation；(3) sludge dewatering；(4) sludge modification；(5) slurry makes；
(6) cardboard is molded；(7) squeezing drying；
Wherein, the concrete operation method of step (1) is：By the sludge of paper mill primary sedimentation tank and two sinking Jing Guo biochemical treatment
The sludge in pond is first uniformly 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, the cationic polyacrylamide for the 1-2% for accounting for paper mill sludge oven dry weight is added into paper mill sludge, low whipping speed is
Under 250-300r/min, 120s-150s is stirred, carries out sludge gravity concentration afterwards.
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 dewatered paper mill sludge of step (3) in sludge storage pool,
It is under 180-200r/min that water and low whipping speed are added in sludge storage pool, stirs 60s-80s, reconciling into solid content is
The sludge suspension liquid of 10-15%；Afterwards, the modifying agent for the 5-10% for accounting for paper mill sludge oven dry weight is added, low whipping speed is
180-200r/min, temperature are at 70-80 DEG C, stir 60s-80s；
Wherein, the modifying agent includes the component of following parts by weight proportioning：30-40 parts of stearic acid, silane coupling agent
15-20 parts of KH560,5-10 parts of Silane coupling agent KH550,5-10 parts of odium stearate.
Various composition in modifying agent of the present invention cooperates, mutually collaboration, which can substantially improve papermaking dirt
The reunion performance of mud, helps to form good micelle, is greatly promoted the removing of water in paper mill sludge so that in step (6)
The cardboard moisture content of gained is low.
The concrete operation method of step (5) is：It is exhausted to account for paper mill sludge for addition in through the modified paper mill sludge of step (4)
The cotton linter of the 15-20% of dry weight, low whipping speed are under 180-200r/min, stir 80s-100s；And then add and account for
The polyamine epichlorohydrin resin of the 5-8% of paper mill sludge oven dry weight, then low whipping speed are under 180-200r/min, are stirred
80s-100s is mixed, the wherein solid content of polyamine epichlorohydrin 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 (6) is：By slurry made from step (5) be transported in paperboard forming device carry out into
Type, is made the aqueous cardboard that moisture content is 40%-50%.
The concrete operation method of step (7) is：Aqueous cardboard made from (6) is moved into squeezing dryer, in 0.8-
High pressure shape under the pressure of 1.0Mpa, high temperature is dried 10-15 minutes at a temperature of 95-100 DEG C.
Embodiment one：
A kind of manufacture craft of environment-friendly paperboard, it is comprised the following steps that：
(1) paper making sludge deodorization is handled；(2) sludge condensation；(3) sludge dewatering；(4) sludge modification；(5) slurry makes；
(6) cardboard is molded；(7) squeezing drying；
Wherein, the concrete operation method of step (1) is：By the sludge of paper mill primary sedimentation tank and two sinking Jing Guo biochemical treatment
The sludge in pond is first uniformly 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 deodorant is hydrogen peroxide.
The concrete operation method of step (2) is：Paper mill sludge after step (1) deodorizing process is delivered to sedimentation basin
In, 1% cationic polyacrylamide 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, carries out sludge gravity concentration afterwards.
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 dewatered paper mill sludge of step (3) in sludge storage pool,
It is under 180r/min that water and low whipping speed are added in sludge storage pool, stirs 80s, reconciles into the sludge that solid content is 10%
Suspension；Afterwards, 10% modifying agent for accounting for paper mill sludge oven dry weight, low whipping speed 180r/min are added, temperature is
At 80 DEG C, 60s is stirred；
Wherein, the modifying agent includes the component of following parts by weight proportioning：30 parts of stearic acid, silane coupling agent KH560
20 parts, 5 parts of Silane coupling agent KH550,10 parts of odium stearate.
The concrete operation method of step (5) is：It is exhausted to account for paper mill sludge for addition in through the modified paper mill sludge of step (4)
15% cotton linter of dry weight, low whipping speed are under 200r/min, stir 80s；And then add and account for paper mill sludge over dry
8% polyamine epichlorohydrin resin of weight, then low whipping speed are under 180r/min, stir 100s, wherein polyamide
The solid content of epichlorohydrin resin is 10%.
The concrete operation method of step (6) is：By slurry made from step (5) be transported in paperboard forming device carry out into
Type, is made the aqueous cardboard that moisture content is 40%.
The concrete operation method of step (7) is：Aqueous cardboard made from (6) 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 of environment-friendly paperboard, it is comprised the following steps that：
(1) paper making sludge deodorization is handled；(2) sludge condensation；(3) sludge dewatering；(4) sludge modification；(5) slurry makes；
(6) cardboard is molded；(7) squeezing drying；
Wherein, the concrete operation method of step (1) is：By the sludge of paper mill primary sedimentation tank and two sinking Jing Guo biochemical treatment
The sludge in pond is first uniformly 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 deodorant is potassium permanganate.
The concrete operation method of step (2) is：Paper mill sludge after step (1) deodorizing process is delivered to sedimentation basin
In, 2% cationic polyacrylamide 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, carries out sludge gravity concentration afterwards.
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 dewatered paper mill sludge of step (3) in sludge storage pool,
It is under 200r/min that water and low whipping speed are added in sludge storage pool, stirs 60s, reconciles into the sludge that solid content is 15%
Suspension；Afterwards, 5% modifying agent for accounting for paper mill sludge oven dry weight, low whipping speed 200r/min, temperature 70 are added
At DEG C, 80s is stirred；
Wherein, the modifying agent includes the component of following parts by weight proportioning：40 parts of stearic acid, silane coupling agent KH560
15 parts, 10 parts of Silane coupling agent KH550,5 parts of odium stearate.
The concrete operation method of step (5) is：It is exhausted to account for paper mill sludge for addition in through the modified paper mill sludge of step (4)
20% cotton linter of dry weight, low whipping speed are under 180r/min, stir 100s；And then add that to account for paper mill sludge exhausted
5% polyamine epichlorohydrin resin of dry weight, then low whipping speed are under 200r/min, stir 80s, wherein polyamide
The solid content of epichlorohydrin resin is 15%.
The concrete operation method of step (6) is：By slurry made from step (5) be transported in paperboard forming device carry out into
Type, is made the aqueous cardboard that moisture content is 50%.
The concrete operation method of step (7) is：Aqueous cardboard made from (6) 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 of environment-friendly paperboard, it is comprised the following steps that：
(1) paper making sludge deodorization is handled；(2) sludge condensation；(3) sludge dewatering；(4) sludge modification；(5) slurry makes；
(6) cardboard is molded；(7) squeezing drying；
Wherein, the concrete operation method of step (1) is：By the sludge of paper mill primary sedimentation tank and two sinking Jing Guo biochemical treatment
The sludge in pond is first uniformly 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 deodorant is potassium permanganate.
The concrete operation method of step (2) is：Paper mill sludge after step (1) deodorizing process is delivered to sedimentation basin
In, 1.5% cationic polyacrylamide 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, carries out sludge gravity concentration afterwards.
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 dewatered paper mill sludge of step (3) in sludge storage pool,
It is under 190r/min that water and low whipping speed are added in sludge storage pool, stirs 70s, reconciles into the sludge that solid content is 12%
Suspension；Afterwards, 8% modifying agent for accounting for paper mill sludge oven dry weight, low whipping speed 190r/min, temperature 75 are added
At DEG C, 70s is stirred；
Wherein, the modifying agent includes the component of following parts by weight proportioning：35 parts of stearic acid, silane coupling agent KH560
18 parts, 8 parts of Silane coupling agent KH550,8 parts of odium stearate.
The concrete operation method of step (5) is：It is exhausted to account for paper mill sludge for addition in through the modified paper mill sludge of step (4)
18% cotton linter of dry weight, low whipping speed are under 190r/min, stir 90s；And then add and account for paper mill sludge over dry
7% polyamine epichlorohydrin resin of weight, then low whipping speed are under 190r/min, stir 90s, wherein polyamide ring
The solid content of oxygen chloropropane resin is 12%.
The concrete operation method of step (6) is：By slurry made from step (5) be transported in paperboard forming device carry out into
Type, is made the aqueous cardboard that moisture content is 45%.
The concrete operation method of step (7) is：Aqueous cardboard made from (6) 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 (8)
- A kind of 1. manufacture craft of environment-friendly paperboard, 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) sludge modification；(5) slurry makes；(6) paper Sheet metal forming；(7) squeezing drying；Wherein, the concrete operation method of step (4) is：It will be put into through the dewatered paper mill sludge of step (3) in sludge storage pool, It is under 180-200r/min that water and low whipping speed are added in sludge storage pool, stirs 60s-80s, reconciling into solid content is The sludge suspension liquid of 10-15%；Afterwards, the modifying agent for the 5-10% for accounting for paper mill sludge oven dry weight is added, low whipping speed is 180-200r/min, temperature are at 70-80 DEG C, stir 60s-80s；Wherein, the modifying agent includes the component of following parts by weight proportioning：30-40 parts of stearic acid, silane coupling agent KH560 15-20 parts, 5-10 parts of Silane coupling agent KH550,5-10 parts of odium stearate.
- 2. the manufacture craft of environment-friendly paperboard according to claim 1, it is characterised in that：The concrete operation method of step (1) For：The sludge of the sludge of paper mill primary sedimentation tank and secondary settling tank Jing Guo biochemical treatment is first uniformly mixed, is then being mixed Deodorant is added in paper mill sludge and carries out oxidation deodorization；Wherein oxidization time, which is controlled in 30-40min, the addition of deodorant, is 15-20mg/L。
- 3. the manufacture craft of environment-friendly paperboard according to claim 2, it is characterised in that：The deodorant is hydrogen peroxide, height The mixture of one or both in potassium manganate.
- 4. the manufacture craft of environment-friendly paperboard according to claim 1, it is characterised in that：The concrete operation method of step (2) is：Paper mill sludge after step (1) deodorizing process is delivered in sedimentation basin, to The cationic polyacrylamide for the 1-2% for accounting for paper mill sludge oven dry weight, low whipping speed 250- are added in paper mill sludge Under 300r/min, 120s-150s is stirred, carries out sludge gravity concentration afterwards.
- 5. the manufacture craft of environment-friendly paperboard according to claim 1, it is characterised in that：The concrete operation method of step (3) For：Paper mill sludge after concentration is dehydrated using belt type sludge filter press.
- 6. the manufacture craft of environment-friendly paperboard according to claim 1, it is characterised in that：The concrete operation method of step (5) For：The cotton linter for the 15-20% for accounting for paper mill sludge oven dry weight is added in through the modified paper mill sludge of step (4), is being stirred Speed is mixed under 180-200r/min, to stir 80s-100s；And then add the poly- of the 5-8% for accounting for paper mill sludge oven dry weight Amide epoxy chloropropane resin, then low whipping speed are under 180-200r/min, stir 80s-100s, wherein daiamid epoxy chlorine The solid content of propane resin is 10-15%.
- 7. the manufacture craft of environment-friendly paperboard according to claim 1, it is characterised in that：The concrete operation method of step (6) For：Slurry made from step (5) is transported in paperboard forming device and is molded, it is containing for 40%-50% that moisture content, which is made, Water cardboard.
- 8. the manufacture craft of environment-friendly paperboard according to claim 1, it is characterised in that：The concrete operation method of step (7) For：Aqueous cardboard made from (6) is moved into squeezing dryer, the high pressure shape under the pressure of 0.8-1.0Mpa, in 95-100 High temperature is dried 10-15 minutes at a temperature of DEG C.
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| CN201710970859.9A CN107974872A (en) | 2017-10-18 | 2017-10-18 | The manufacture craft of environment-friendly paperboard |
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| CN201710970859.9A CN107974872A (en) | 2017-10-18 | 2017-10-18 | The manufacture craft of environment-friendly paperboard |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112030596A (en) * | 2020-08-20 | 2020-12-04 | 锦上包装江苏有限公司 | Formula of environment-friendly paperboard regenerated by using papermaking sludge |
| CN113896385A (en) * | 2021-10-11 | 2022-01-07 | 北京尚水清源水处理技术有限公司 | Sludge dewatering method |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112030596A (en) * | 2020-08-20 | 2020-12-04 | 锦上包装江苏有限公司 | Formula of environment-friendly paperboard regenerated by using papermaking sludge |
| CN113896385A (en) * | 2021-10-11 | 2022-01-07 | 北京尚水清源水处理技术有限公司 | Sludge dewatering method |
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