CN109594387A - A kind of plain boiled water processing method of papermaking green end - Google Patents
A kind of plain boiled water processing method of papermaking green end Download PDFInfo
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- CN109594387A CN109594387A CN201811620205.4A CN201811620205A CN109594387A CN 109594387 A CN109594387 A CN 109594387A CN 201811620205 A CN201811620205 A CN 201811620205A CN 109594387 A CN109594387 A CN 109594387A
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- plain boiled
- boiled water
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- clear filtrate
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- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C11/00—Regeneration of pulp liquors or effluent waste waters
- D21C11/0064—Aspects concerning the production and the treatment of green and white liquors, e.g. causticizing green liquor
- D21C11/0078—Treatment of green or white liquors with other means or other compounds than gases, e.g. in order to separate solid compounds such as sodium chloride and carbonate from these liquors; Further treatment of these compounds
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Abstract
A kind of plain boiled water processing method of papermaking green end of the present invention, paper making pulp, wet strength agent and retention and drainage aid agent uniformly mix according to a certain ratio, wet end and press section are delivered to after refiltering, select suitable retention aid and filtering aid system cooperation wet end dehydration, reduce the impurity taken off in plain boiled water, the cleanliness of plain boiled water filtering is improved by control fan blades parameter and the operating parameter of more disk filters, defoaming agent, fungicide, the auxiliary agents such as anion garbage capturing agent improve because the problem of caused by white water recycling, increase the degree of closure of plain boiled water circulation, reduce papermaking clear water usage amount, reduce discharge of wastewater.The plain boiled water processing method of papermaking green end provided by the invention, the super clear filtrate that more disk filters obtain is reprocessed by membrane filtration technique, Recirculating white water turbidity and SS is set to reduce by 90% or more, the plain boiled water that network pressure portion deviates from replaces to clear water is used for the shower water of high-pressure spraying system and part replaces fresh water to be used for the sealing water of vacuum system after film filtration treatment, greatlys save rinse dosage.
Description
Technical field
The present invention relates to pulp technology for making paper, and in particular to a kind of plain boiled water processing method of papermaking green end.
Background technique
For pulp and paper industry, water consumption is very big, and discharge of wastewater is extremely serious to the pollution of environment.Therefore,
How reasonable utilization water resource, which reaches the promotion that water is imitated, has become current hot topic.Currently used papermaking water cyclic system
Closed stratum of uniting is not high, is primarily limited to the complicated components degree of white-water system and the degree of purification of filtration system, therefore, how
It reduces while efficiently using plain boiled water and has important practical significance to the adverse effect of paper machine operation.
Summary of the invention
In order to solve the problems existing in the prior art, the present invention provides a kind of plain boiled water processing methods of papermaking green end.
To achieve the above object, the technical solution adopted by the present invention are as follows:
A kind of plain boiled water processing method of papermaking green end, comprising the following steps:
Step 1: the paper making pulp, wet strength agent and retention and drainage aid agent in constant part uniformly mix according to a certain ratio, using lattice
Wet end and press section are delivered to after grid, inclined wire filtering；
Step 2: wet end and the plain boiled water of press section abjection mix one with defoaming agent, organic bactericide and anion garbage capturing agent
Secondary filtration is carried out by grid after the section time, more disk filters is then entered back into and carries out three-stage filtration, control more disk mistakes
Fan blades parameter, operating parameter and the vacuum degree of filter, improve plain boiled water quality, filtered plain boiled water be clear filtrate and super clear filtrate,
The clarity of clear filtrate is less than 55mg/L, and the clarity of super clear filtrate is less than 35mg/L, clear filtrate according to step 2 progress after
Filter processing, until becoming super clear filtrate；
Step 3: super clear filtrate is filtered by the filter membrane that aperture is 5-500nm, secondary super clear filtrate is obtained, it is secondary super
The clarity of clear filtrate is less than 10mg/L, then is passed through to paper manufacturing systems and vacuum system.
Further, in step 1, score meter by weight, the proportion of the paper making pulp, wet strength agent and retention and drainage aid agent
Are as follows: 35-45:12-18:10-15.
Further, the proportion of the paper making pulp, wet strength agent and retention and drainage aid agent are as follows: 40:14:12.
Further, in step 2, the number of more disk filters is 16, and fan blades number is 24/disk, revolving speed
For 1-1.2r/min, vacuum degree control is in 0.025MPa.
Further, in step 2, the volume ratio of plain boiled water, defoaming agent, fungicide and anion garbage capturing agent are as follows: 15-
The plain boiled water of 25:4-8:5-10:6-12, wet end and press section abjection is mixed with defoaming agent, fungicide and anion garbage capturing agent
30-60min subsequently enters grid and carries out secondary filtration.
Further, the defoaming agent use fatty alcohols defoaming agent, organic bactericide is organosulfureous fungicide, yin from
Sub- trash catchers are aluminum sulfate agent for capturing.
Compared with prior art, the invention has the benefit that
Paper making pulp, wet strength agent and retention the invention discloses a kind of plain boiled water processing method of papermaking green end, in constant part
Filter aid uniformly mixes according to a certain ratio, and using wet end and press section is delivered to after grid, inclined wire filtering, selection is suitably helped
The cooperation wet end dehydration of drainage system is stayed, reduces and takes off impurity in plain boiled water, passes through control fan blades parameter and more disk filters
Operating parameter improves the cleanliness of plain boiled water filtering, and the auxiliary agents such as defoaming agent, fungicide, anion garbage capturing agent improve because plain boiled water returns
The problem of with causing, increases the degree of closure of plain boiled water circulation, reduces papermaking clear water usage amount, largely recycles the fibre in plain boiled water
Peacekeeping filler reduces discharge of wastewater.The plain boiled water processing method of papermaking green end provided by the invention, by membrane filtration technique to mostly round
The super clear filtrate that disk filter obtains is reprocessed, and so that Recirculating white water turbidity and SS is reduced by 90% or more, network pressure portion is deviate from
Plain boiled water replaces clear water to replace fresh water for vacuum for the shower water of high-pressure spraying system and part after film filtration treatment
The sealing water of system, is greatly saved rinse dosage.
Specific embodiment
The present invention will be further explained combined with specific embodiments below.
Embodiment 1
A kind of plain boiled water processing method of papermaking green end, comprising the following steps:
Step 1: the paper making pulp, wet strength agent and retention and drainage aid agent in constant part uniformly mix according to a certain ratio, using lattice
Wet end and press section are delivered to after grid, inclined wire filtering；
Step 2: wet end and the plain boiled water of press section abjection mix one with defoaming agent, organic bactericide and anion garbage capturing agent
Secondary filtration is carried out by grid after the section time, more disk filters is then entered back into and carries out three-stage filtration, control more disk mistakes
Fan blades parameter, operating parameter and the vacuum degree of filter, improve plain boiled water quality, filtered plain boiled water be clear filtrate and super clear filtrate,
The clarity of clear filtrate is less than 55mg/L, and the clarity of super clear filtrate is less than 35mg/L, clear filtrate according to step 2 progress after
Filter processing, until becoming super clear filtrate；
Step 3: super clear filtrate is filtered by the filter membrane that aperture is 5-500nm, secondary super clear filtrate is obtained, it is secondary super
The clarity of clear filtrate is less than 10mg/L, then is passed through to paper manufacturing systems and vacuum system.
In step 1, score meter by weight, the proportion of the paper making pulp, wet strength agent and retention and drainage aid agent are as follows: 45:12:
10。
In step 2, the number of more disk filters is 16, and fan blades number is 24/disk, revolving speed 1-1.2r/
Min, vacuum degree control is in 0.025MPa.
In step 2, the volume ratio of plain boiled water, defoaming agent, fungicide and anion garbage capturing agent are as follows: 18:6:8:7, wet end
With plain boiled water and defoaming agent, fungicide and the anion garbage capturing agent mixing 30-60min of press section abjection, grid is subsequently entered
Carry out secondary filtration.
Defoaming agent uses the defoaming agent of fatty alcohols, and organic bactericide is organosulfureous fungicide, anion garbage capturing agent
For aluminum sulfate agent for capturing.
Remainder is the same as embodiment 1.
Embodiment 2
A kind of plain boiled water processing method of papermaking green end, comprising the following steps:
Step 1: the paper making pulp, wet strength agent and retention and drainage aid agent in constant part uniformly mix according to a certain ratio, using lattice
Wet end and press section are delivered to after grid, inclined wire filtering；
Step 2: wet end and the plain boiled water of press section abjection mix one with defoaming agent, organic bactericide and anion garbage capturing agent
Secondary filtration is carried out by grid after the section time, more disk filters is then entered back into and carries out three-stage filtration, control more disk mistakes
Fan blades parameter, operating parameter and the vacuum degree of filter, improve plain boiled water quality, filtered plain boiled water be clear filtrate and super clear filtrate,
The clarity of clear filtrate is less than 55mg/L, and the clarity of super clear filtrate is less than 35mg/L, clear filtrate according to step 2 progress after
Filter processing, until becoming super clear filtrate；
Step 3: super clear filtrate is filtered by the filter membrane that aperture is 5-500nm, secondary super clear filtrate is obtained, it is secondary super
The clarity of clear filtrate is less than 10mg/L, then is passed through to paper manufacturing systems and vacuum system.
In step 1, score meter by weight, the proportion of the paper making pulp, wet strength agent and retention and drainage aid agent are as follows: 35:18:
15。
In step 2, the number of more disk filters is 16, and fan blades number is 24/disk, revolving speed 1-1.2r/
Min, vacuum degree control is in 0.025MPa.
In step 2, the volume ratio of plain boiled water, defoaming agent, fungicide and anion garbage capturing agent are as follows: 25:4:5:6, net
Plain boiled water and defoaming agent, fungicide and the anion garbage capturing agent mixing 30-60min in portion and press section abjection, subsequently enter lattice
Grid carry out secondary filtration.
Remainder is the same as embodiment 1.
Embodiment 3
A kind of plain boiled water processing method of papermaking green end, comprising the following steps:
Step 1: the paper making pulp, wet strength agent and retention and drainage aid agent in constant part uniformly mix according to a certain ratio, using lattice
Wet end and press section are delivered to after grid, inclined wire filtering；
Step 2: wet end and the plain boiled water of press section abjection mix one with defoaming agent, organic bactericide and anion garbage capturing agent
Secondary filtration is carried out by grid after the section time, more disk filters is then entered back into and carries out three-stage filtration, control more disk mistakes
Fan blades parameter, operating parameter and the vacuum degree of filter, improve plain boiled water quality, filtered plain boiled water be clear filtrate and super clear filtrate,
The clarity of clear filtrate is less than 55mg/L, and the clarity of super clear filtrate is less than 35mg/L, clear filtrate according to step 2 progress after
Filter processing, until becoming super clear filtrate；
Step 3: super clear filtrate is filtered by the filter membrane that aperture is 5-500nm, secondary super clear filtrate is obtained, it is secondary super
The clarity of clear filtrate is less than 10mg/L, then is passed through to paper manufacturing systems and vacuum system.
In step 1, score meter by weight, the proportion of paper making pulp, wet strength agent and retention and drainage aid agent are as follows: 40:14:12.
In step 2, the number of more disk filters is 16, and fan blades number is 24/disk, revolving speed 1-1.2r/
Min, vacuum degree control is in 0.025MPa.
In step 2, the volume ratio of plain boiled water, defoaming agent, fungicide and anion garbage capturing agent are as follows: 15:8:10:12,
Plain boiled water and defoaming agent, fungicide and the anion garbage capturing agent mixing 30-60min of wet end and press section abjection, subsequently enter
Grid carries out secondary filtration.
Defoaming agent uses the defoaming agent of fatty alcohols, and organic bactericide is organosulfureous fungicide, anion garbage capturing agent
For aluminum sulfate agent for capturing.
Remainder is the same as embodiment 1.
The above embodiments do not limit the invention in any form, all to be obtained by the way of equivalent substitution or equivalent transformation
Technical solution, all fall within protection scope of the present invention.
Claims (6)
1. a kind of plain boiled water processing method of papermaking green end, which comprises the following steps:
Step 1: the paper making pulp, wet strength agent and retention and drainage aid agent in constant part uniformly mix according to a certain ratio, using lattice
Wet end and press section are delivered to after grid, inclined wire filtering；
Step 2: wet end and the plain boiled water of press section abjection mix one with defoaming agent, organic bactericide and anion garbage capturing agent
Secondary filtration is carried out by grid after the section time, more disk filters is then entered back into and carries out three-stage filtration, control more disk mistakes
Fan blades parameter, operating parameter and the vacuum degree of filter, improve plain boiled water quality, filtered plain boiled water be clear filtrate and super clear filtrate,
The clarity of clear filtrate is less than 55mg/L, and the clarity of super clear filtrate is less than 35mg/L, clear filtrate according to step 2 progress after
Filter processing, until becoming super clear filtrate；
Step 3: super clear filtrate is filtered by the filter membrane that aperture is 5-500nm, secondary super clear filtrate is obtained, it is secondary super
The clarity of clear filtrate is less than 10mg/L, then is passed through to paper manufacturing systems and vacuum system.
2. a kind of plain boiled water processing method of papermaking green end according to claim 1, which is characterized in that in step 1, by weight
Measure score meter, the proportion of the paper making pulp, wet strength agent and retention and drainage aid agent are as follows: 35-45:12-18:10-15.
3. a kind of plain boiled water processing method of papermaking green end according to claim 2, which is characterized in that the paper making pulp,
The proportion of wet strength agent and retention and drainage aid agent are as follows: 40:14:12.
4. a kind of plain boiled water processing method of papermaking green end according to claim 1, which is characterized in that described in step 2
The number of more disk filters is 16, and fan blades number is 24/disk, and revolving speed 1-1.2r/min, vacuum degree control exists
0.025MPa。
5. a kind of plain boiled water processing method of papermaking green end according to claim 1, which is characterized in that in step 2, plain boiled water,
The volume ratio of defoaming agent, fungicide and anion garbage capturing agent are as follows: 15-25:4-8:5-10:6-12, wet end and press section are de-
Plain boiled water out and defoaming agent, fungicide and anion garbage capturing agent mixing 30-60min subsequently enter grid and carry out second level mistake
Filter.
6. a kind of plain boiled water processing method of papermaking green end according to claim 1, which is characterized in that the defoaming agent is adopted
With the defoaming agent of fatty alcohols, organic bactericide is organosulfureous fungicide, and anion garbage capturing agent is aluminum sulfate agent for capturing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201811620205.4A CN109594387A (en) | 2018-12-28 | 2018-12-28 | A kind of plain boiled water processing method of papermaking green end |
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| CN201811620205.4A CN109594387A (en) | 2018-12-28 | 2018-12-28 | A kind of plain boiled water processing method of papermaking green end |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110714353A (en) * | 2019-10-12 | 2020-01-21 | 山鹰国际控股股份公司 | Treatment process for improving multi-disc drainage of papermaking white water |
| CN112301780A (en) * | 2020-09-18 | 2021-02-02 | 江苏理文造纸有限公司 | Anionic garbage control process for papermaking system |
| CN112431057A (en) * | 2020-11-24 | 2021-03-02 | 芬欧汇川(中国)有限公司 | System and method for separating polyvinyl alcohol from papermaking white water |
| CN114108356A (en) * | 2021-10-21 | 2022-03-01 | 江苏理文造纸有限公司 | Papermaking white water anion garbage recycling process |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110714353A (en) * | 2019-10-12 | 2020-01-21 | 山鹰国际控股股份公司 | Treatment process for improving multi-disc drainage of papermaking white water |
| CN112301780A (en) * | 2020-09-18 | 2021-02-02 | 江苏理文造纸有限公司 | Anionic garbage control process for papermaking system |
| CN112431057A (en) * | 2020-11-24 | 2021-03-02 | 芬欧汇川(中国)有限公司 | System and method for separating polyvinyl alcohol from papermaking white water |
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Application publication date: 20190409 |