CN105445417A - Evaluation method for removal effect of cleaning assistant on sticky object - Google Patents
Evaluation method for removal effect of cleaning assistant on sticky object Download PDFInfo
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- CN105445417A CN105445417A CN201410502248.8A CN201410502248A CN105445417A CN 105445417 A CN105445417 A CN 105445417A CN 201410502248 A CN201410502248 A CN 201410502248A CN 105445417 A CN105445417 A CN 105445417A
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- pattern
- sicker
- paper
- removal effect
- cleaning additive
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Abstract
The invention relates to an evaluation method for the removal effect of a cleaning assistant on a sticky object. The method includes the steps of: (1) slurry preparation: adopting a mechanical strong stirrer, and adding the sticky object before pulping; (2) cleaning assistant adding: according to the design of an experimental program, adding the cleaning assistant before or after pulping; (3) paper making: utilizing a papermaking device composed of a stirrer, a filter tank, a filter screen, a suction flask and a vacuum pump to simulate the dynamic drainage forming process of a paper machine so as to perform pattern papermaking; (4) paper pattern pressing and drying: firstly conducting initial pressing with rollers, then performing pressing by an oil press, and carrying out drying to obtain a paper pattern; and (5) paper pattern analysis: conducting statistics on surface black spots, and representing the assistant effect through the removal rate of the surface black spots. The method provided by the invention can simulate the actual production conditions of papermaking, and has the advantages of simple operation, stable and reliable result, and freedom from other factors' interference no data.
Description
Technical field
The invention belongs to technical field of measurement and test, relate to a kind of evaluation method of sicker removal effect of cleaning additive in paper industry, is the experimental technique selecting sicker to remove auxiliary agent.
Background technology
Sicker in paper pulp generally derives from the impurity such as ink, bonding agent in secondary stock.In waste paper pulp-making process, the character of the sicker in waste paper also can change, after entering paper manufacturing systems, these sickers are often easily deposited on the forming net of paper machine, woollen blanket, the position such as pressure roller or drying cylinder, mesh is caused to block, make paper produce diaphanous spot, even cause paper machine to break paper, impact is normal produces and product quality.In the factory producing newsprint, this situation is more outstanding.
Have at present much about the report of sicker remover, but seldom have the report about sicker removal effect evaluation method.Chinese patent CN101498640A discloses a kind of evaluation method, be by measure filtrate through the inventory stayed after filter membrane on filtering membrane number and the turbidity of filtrate, cationic demand characterize sicker removal effect.There is following shortcoming (1) and adopt the method for filtering rear mensuration trapped substance weight often to there is comparatively big error in the method that this patent proposes, because sicker itself is lighter, and in actual production in paper pulp the content of sicker relatively low, in pattern, the number of sicker generally can not cause the significant change of trapped substance weight on filter membrane.(2) index such as the turbidity of filtrate and cationic demand is often subject to the impact that added sicker removes auxiliary agent, brings interference to actual determination data.(3) experimental technique that this patent discloses simply is filtered by slurry, and this drainage process is a kind of simple static drainage pattern, larger with the dynamic drainage pattern gap in papermaking actual production.Therefore, this assay method is often difficult to simulate actual production situation in actual applications, and measurement result also can lack actual application value.
The object of this invention is to provide a kind of method that can overcome the sicker removal effect of cleaning additive in the evaluation paper industry of above-mentioned defect.
Summary of the invention
The object of the invention is the method for the evaluation sicker remover effect in paper providing a kind of improvement.In fact, formation and the paper making process of sicker obstacle are closely related, and particularly on the addition manner of cleaning additive and wire-cloth, drainage process is particularly important to the removal effect of sicker obstacle.Therefore, if can test under the condition simulating dynamic drainage in papermaking actual production process, and adopt different cleaning additive addition manners to carry out Experimental comparison, gained experimental evaluation result certainly will be actual closer to production.On the other hand, to consider in actual production that sicker obstacle is that accumulation is formed, and in paper pulp, the content of sicker is not very high, therefore when we directly get paper pulp test time, the contrast of experimental result is often obviously little.For this reason, we supplement and add in actual production the sicker accumulated when forming sicker obstacle in slurry prepares, and improve the adhesive content in paper pulp, thus it is more obvious that experimental data is contrasted.In addition, in paper-making process, sicker removal effect is better, and on pattern, black splotch is also fewer, and therefore, on pattern, the statistics of stain quantity directly can reflect the removal effect of sicker remover to sicker.
Based on above design, the present invention proposes following evaluation method:
Cleaning additive to an evaluation method for sicker removal effect, it is characterized in that the method adopt the preparation of slurry, copy paper, squeezing, drying, pattern analysis flow process carry out, concrete steps are as follows:
the preparation of slurry: adopt mechanical machine,massing to carry out, and add the sicker of 0.5 ~ 10% before making beating;
the interpolation of cleaning additive: experimentally the design of scheme adds cleaning additive before making beating or after making beating, if add cleaning additive after making beating, then need to continue dispersed with stirring 3 ~ 10min after adding cleaning additive, stirring rate is chosen arbitrarily within the scope of 200 ~ 500rpm;
page is manufactured paper with pulp: the dynamic drainage forming process of the copy paper unit simulation paper machine utilizing stirring machine (1), draining tank (2), filter screen (3), bottle,suction (4), vacuum pump (5) to form is carried out pattern and manufactured paper with pulp;
the squeezing of pattern, drying: during squeezing, first carry out first pressing 5 ~ 10 times with roller, then use oil press to squeeze 1 ~ 10min at 0.2 ~ 1.0MPa pressure, at 50 ~ 150 DEG C of temperature, drying can obtain pattern;
pattern is analyzed: the statistics of effects on surface black splotch, and characterized the effect of auxiliary agent by the clearance of pattern surface stain, sicker removal effect exponential formula is: R=K
0(C
0-C)/C
0, in formula: R is sicker removal effect index, K
0for systematic parameter, relevant with pulp varieties, usually, K
0=1.0, C is pattern surface stain quantity, C
0for blank sample surface stain quantity.
The filter screen of above-mentioned copy paper device is for selecting the filter screen of the arbitrary order number between 50 ~ 200 orders.
The stirring machine of above-mentioned copy paper device is stepless speed-regulating stirrer, and speed adjustable range is 200 ~ 3000rpm.
Compared with other evaluation method, the present invention can simulate papermaking actual production conditions, and has simple to operate, that result is reliable and stable, data are not subject to the interference of other factors advantage.
Accompanying drawing explanation
Fig. 1 copy paper installation drawing.
Embodiment
Embodiment 1
(1) in paper pulp, add the sicker of 0.5%, through mechanical raking, paper pulp is dissociated and sicker is uniformly dispersed, under 500rpm stirring rate, stir 10min;
(2) add the sicker remover of 0.4% in the paper pulp after making beating, under 200rpm stirring rate, stir 3min;
(3) 50 order copper mesh are selected, under 400rpm stirring rate, on small-sized copy paper device, copy paper obtains l Water Paper page, l Water Paper page is by roller first pressing (back and forth 5 times), oil press squeezes 1min at 0.2MPa pressure, dry 20min at 80 DEG C of temperature, then be warming up to 120 DEG C of dry 20min of continuation, can pattern be obtained;
(4) statistics adds the quantity of the pattern surface black spot of cleaning additive and compares with the blank pattern not adding cleaning additive, if blank sample stain quantity is C
0individual, pattern stain quantity is C
1individual, systematic parameter be K(usually, K=1.0), then this sicker except agent index is:
R=K(C
0~C
1)/C
0
(5) sicker by comparing different schemes pattern removes the height of index, can evaluate the sicker removal effect of different auxiliary agent.
Embodiment 2
(1) in paper pulp, add the sicker of 2.5% and the sicker remover of 2%, through mechanical raking paper pulp is dissociated and make sicker, sicker remover is uniformly dispersed, and under 800rpm stirring rate, stirs 15min;
(2) 80 order copper mesh are selected, under 400rpm stirring rate, on small-sized copy paper device, copy paper obtains l Water Paper page, l Water Paper page is by roller first pressing (back and forth 7 times), oil press squeezes 3min at 0.4MPa pressure, dry 20min at 80 DEG C of temperature, then be warming up to 120 DEG C of dry 20min of continuation, can pattern be obtained;
(3) statistics adds the quantity of the pattern surface black spot of cleaning additive and compares with the blank pattern not adding cleaning additive, if blank sample stain quantity is C
0individual, pattern stain quantity is C
1individual, systematic parameter be K(usually, K=1.0), then this sicker except agent index is:
R=K(C
0~C
1)/C
0
(4) sicker by comparing different schemes pattern removes the height of index, can evaluate the sicker removal effect of different auxiliary agent.
Embodiment 3
(1) in paper pulp, add the sicker of 5%, through mechanical raking, paper pulp is dissociated and sicker is uniformly dispersed, under 1500rpm stirring rate, stir 20min;
(2) add the sicker remover of 4% in the paper pulp after making beating, under 250rpm rotating speed, stir 10min;
(3) 100 order copper mesh are selected, under 400rpm stirring rate, on small-sized copy paper device, copy paper obtains l Water Paper page, l Water Paper page is by roller first pressing (back and forth 8 times), oil press squeezes 5min at 0.6MPa pressure, dry 20min at 80 DEG C of temperature, then be warming up to 120 DEG C of dry 20min of continuation, can pattern be obtained;
(4) statistics adds the quantity of the pattern surface black spot of cleaning additive and compares with the blank pattern not adding cleaning additive, if blank sample stain quantity is C
0individual, pattern stain quantity is C
1individual, systematic parameter be K(usually, K=1.0), then this sicker except agent index is:
R=K(C
0~C
1)/C
0
(5) sicker by comparing different schemes pattern removes the height of index, can evaluate the sicker removal effect of different auxiliary agent.
Embodiment 4
(1) in paper pulp, add the sicker of 7.5% and the sicker remover of 6%, through mechanical raking paper pulp is dissociated and make sicker, sicker remover is uniformly dispersed, and under 2000rpm stirring rate, stirs 25min;
(2) 150 order copper mesh are selected, under 400rpm stirring rate, on small-sized copy paper device, copy paper obtains l Water Paper page, l Water Paper page is by roller first pressing (back and forth 9 times), oil press squeezes 8min at 0.8MPa pressure, dry 20min at 80 DEG C of temperature, then be warming up to 120 DEG C of dry 20min of continuation, can pattern be obtained;
(3) statistics adds the quantity of the pattern surface black spot of cleaning additive and compares with the blank pattern not adding cleaning additive, if blank sample stain quantity is C
0individual, pattern stain quantity is C
1individual, systematic parameter be K(usually, K=1.0), then this sicker except agent index is:
R=K(C
0~C
1)/C
0
(4) sicker by comparing different schemes pattern removes the height of index, can evaluate the sicker removal effect of different auxiliary agent.
Embodiment 5
(1) in paper pulp, add the sicker of 10%, through mechanical raking, paper pulp is dissociated and sicker is uniformly dispersed, under 3000rpm stirring rate, stir 30min;
(2) add the sicker remover of 8% in the paper pulp after making beating, under 500rpm rotating speed, stir 10min;
(3) 200 order copper mesh are selected, under 400rpm stirring rate, on small-sized copy paper device, copy paper obtains l Water Paper page, l Water Paper page is by roller first pressing (back and forth 10 times), oil press squeezes 10min at 1.0MPa pressure, dry 20min at 80 DEG C of temperature, then be warming up to 120 DEG C of dry 20min of continuation, can pattern be obtained;
(4) statistics adds the quantity of the pattern surface black spot of cleaning additive and compares with the blank pattern not adding cleaning additive, if blank sample stain quantity is C
0individual, pattern stain quantity is C
1individual, systematic parameter be K(usually, K=1.0), then this sicker except agent index is:
R=K(C
0~C
1)/C
0
(5) sicker by comparing different schemes pattern removes the height of index, can evaluate the sicker removal effect of different auxiliary agent.
Claims (3)
1. cleaning additive is to an evaluation method for sicker removal effect, it is characterized in that the method adopt the preparation of slurry, copy paper, squeezing, drying, pattern analysis flow process carry out, concrete steps are as follows:
the preparation of slurry: adopt mechanical machine,massing to carry out, and add the sicker of 0.5 ~ 10% before making beating;
the interpolation of cleaning additive: experimentally the design of scheme adds cleaning additive before making beating or after making beating, if add cleaning additive after making beating, then need to continue dispersed with stirring 3 ~ 10min after adding cleaning additive, stirring rate is chosen arbitrarily within the scope of 200 ~ 500rpm;
page is manufactured paper with pulp: the dynamic drainage forming process of the copy paper unit simulation paper machine utilizing stirring machine (1), draining tank (2), filter screen (3), bottle,suction (4), vacuum pump (5) to form is carried out pattern and manufactured paper with pulp;
the squeezing of pattern, drying: during squeezing, first carry out first pressing 5 ~ 10 times with roller, then use oil press to squeeze 1 ~ 10min at 0.2 ~ 1.0MPa pressure, at 50 ~ 150 DEG C of temperature, drying can obtain pattern;
pattern is analyzed: the statistics of effects on surface black splotch, and characterized the effect of auxiliary agent by the clearance of pattern surface stain, sicker removal effect exponential formula is: R=K
0(C
0-C)/C
0, in formula: R is sicker removal effect index, K
0for systematic parameter, relevant with pulp varieties, usually, K
0=1.0, C is pattern surface stain quantity, C
0for blank sample surface stain quantity.
2. a kind of cleaning additive according to claim 1 is to the evaluation method of sicker removal effect, it is characterized in that the filter screen of copy paper device is for selecting the filter screen of the arbitrary order number between 500 ~ 200 orders.
3. a kind of cleaning additive according to claim 1 is to the evaluation method of sicker removal effect, and it is characterized in that the stirring machine of copy paper device is stepless speed-regulating stirrer, speed adjustable range is 200 ~ 3000rpm.
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|---|---|---|---|
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| CN201410502248.8A CN105445417B (en) | 2014-09-26 | 2014-09-26 | A kind of evaluation method of cleaning additive to sicker removal effect |
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| CN105445417B CN105445417B (en) | 2019-07-16 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108717047A (en) * | 2018-05-25 | 2018-10-30 | 玖龙纸业（太仓）有限公司 | A kind of peeling effect evaluation method for remover |
| CN111648158A (en) * | 2020-05-29 | 2020-09-11 | 玖龙纸业（太仓）有限公司 | Method for evaluating effect of removing stickiness of sticky matter by using stripping agent for papermaking |
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| CN1395003A (en) * | 2001-07-05 | 2003-02-05 | 李风宁 | Method for removing adhesive matter from regenerated pulp |
| CN1699977A (en) * | 2005-05-19 | 2005-11-23 | 陕西科技大学 | Method for detecting adhesive content in regenerated paper pulp |
| CN101725064A (en) * | 2009-10-31 | 2010-06-09 | 华南理工大学 | Method for improving removal effect of stickies in waste paper pulp |
| CN103074795A (en) * | 2012-12-26 | 2013-05-01 | 泰兴市一鸣生物制品有限公司 | Method for controlling secondary stickies through lipase |
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2014
- 2014-09-26 CN CN201410502248.8A patent/CN105445417B/en active Active
Patent Citations (4)
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|---|---|---|---|---|
| CN1395003A (en) * | 2001-07-05 | 2003-02-05 | 李风宁 | Method for removing adhesive matter from regenerated pulp |
| CN1699977A (en) * | 2005-05-19 | 2005-11-23 | 陕西科技大学 | Method for detecting adhesive content in regenerated paper pulp |
| CN101725064A (en) * | 2009-10-31 | 2010-06-09 | 华南理工大学 | Method for improving removal effect of stickies in waste paper pulp |
| CN103074795A (en) * | 2012-12-26 | 2013-05-01 | 泰兴市一鸣生物制品有限公司 | Method for controlling secondary stickies through lipase |
Non-Patent Citations (1)
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| 万金泉等: "脱墨纸浆中胶黏物生物酶法处理", 《生物技术》 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108717047A (en) * | 2018-05-25 | 2018-10-30 | 玖龙纸业（太仓）有限公司 | A kind of peeling effect evaluation method for remover |
| CN108717047B (en) * | 2018-05-25 | 2020-11-10 | 玖龙纸业（太仓）有限公司 | Stripping effect evaluation method for stripping agent |
| CN111648158A (en) * | 2020-05-29 | 2020-09-11 | 玖龙纸业（太仓）有限公司 | Method for evaluating effect of removing stickiness of sticky matter by using stripping agent for papermaking |
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| CN105445417B (en) | 2019-07-16 |
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