CN102519840B - Viscose filtering resistance detection method - Google Patents
Viscose filtering resistance detection method Download PDFInfo
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- CN102519840B CN102519840B CN 201110454389 CN201110454389A CN102519840B CN 102519840 B CN102519840 B CN 102519840B CN 201110454389 CN201110454389 CN 201110454389 CN 201110454389 A CN201110454389 A CN 201110454389A CN 102519840 B CN102519840 B CN 102519840B
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Abstract
The invention discloses a viscose filtering resistance detection method, which includes the following steps of firstly, adding 2-3L of viscose into a cylinder, closing the cylinder, leading air into a compressed air inlet and applying constant pressure, opening a valve of a viscose tube, feeding the viscose through a filter screen while timing, and measuring viscose flow P1 after three minutes; secondly, retiming and measuring viscose flow P2 after six minutes; and finally calculating the viscose filtering resistance Kw according to the formula:{(2-P2/P1)/(P1+P2)}X100000X0.6. The detection results can reflect internal performance of viscose indirectly and have fine reproduction property. The viscose filtering resistance detection method is high in efficiency and accuracy.
Description
Technical field
The present invention relates to textile technology field, relate in particular to a kind of viscose filtration resistance detection method.
Background technology
Viscose glue refers to produce the cellulose sulfonate that pulp that viscose rayon uses is made after alkali steeping, squeezing, pulverizing, experienced, sulfonation.And viscose glue Kw value (filtration resistance) refers to the quality index of pulp itself, and the height of pulp Kw value directly has influence on the quality of prepared viscose glue spinnability, measure the Kw value of pulp, just can measure after pulp need being made viscose glue.So measure viscose glue Kw value (filtration resistance), it is the important indicator of weighing the viscose glue spinnability.Viscose glue Kw value is high, and then spinnability is poor, easily stops up shower nozzle in spray silk process.Therefore it is significant to the viscose glue spinnability accurately to measure viscose glue Kw value.
The following method of main employing is carried out the mensuration of viscose glue Kw value at present: highly be 250 millimeters, diameter is in 32 millimeters the plastic tube, there are a nut and two rubber washers in the lower end of pipe, between rubber washer, put into the stainless steel filtering net of 1000 hole/square centimeters, tighten the filter cap, viscose glue added in the plastic tube fill it up with, collect the viscose glue that filters out with 250 millimeters graduated cylinders, measure the viscose glue milliliter number that leaches and represent its strainability.The result that this kind method records is more rough, degree of accuracy is not high, filter under normal pressure because be, therefore the impurity on the filter screen is very big to the influence of net result, simultaneously, when measuring, need manually with viscose glue from above pour into the plastic tube, speed and the gimmick of pouring viscose glue into also can exert an influence to testing result, cause the net result error bigger, it is not high to detect stability.
Summary of the invention
The present invention is intended at the deficiencies in the prior art, and a kind of viscose filtration resistance detection method that can measure viscose glue Kw value accurately and rapidly is provided.The present invention is applicable to the viscose rayon detection of pulp quality, and the viscose glue that uses in all viscose rayon productions all can detect by this method.The present invention has the testing result favorable reproducibility, the characteristics that detection efficiency is high.
In order to realize the foregoing invention purpose, the technical solution used in the present invention is:
Viscose filtration resistance detection method, it is characterized in that: adopt viscose filtration resistance determinator to measure, this device comprises the gland bonnet that has open-topped cylindrical shell, is installed in the cartridge openings place, described cylindrical shell bottom has the chuck water delivering orifice, cylindrical shell top has chuck water inlet and compressed air inlet, be connected with the viscose glue pipe of pressometer and band valve on the described gland bonnet, described viscose glue Guan Yiduan stretches in the cylindrical shell, and the viscose glue pipe other end is with filtrator; Described filtrator comprises filter cloth and supports the stainless steel cloth of filter cloth;
Concrete detection step is as follows:
A, the gland bonnet at cartridge openings place is taken off, in cylindrical shell, add viscose glue, it is airtight to cover gland bonnet then, compressed air inlet bubbling air on the cylindrical shell, by being connected the pressure in the pressometer measurement cylindrical shell on the gland bonnet, when the pressure in the cylindrical shell is the 1-3 kilograms per square centimetres, stop to the compressed air inlet bubbling air;
B, open the valve of viscose glue pipe, make viscose glue pass through filter cloth, pick up counting in the time of at the bottom of viscose glue flows to beaker by filter cloth, after 3 minutes, close the valve of viscose glue pipe, measure the viscose glue flow P1 in the beaker;
C, open the valve of viscose glue pipe and use the another beaker instead again, pick up counting in the time of at the bottom of viscose glue flows to beaker by filter cloth, through closing the valve of viscose glue pipe after 6 minutes, measure the viscose glue flow P2 in the beaker;
D, calculate the viscose filtration resistance by Kw={ (2-P2/ P1)/(P1+ P2) } * 100000*0.6 at last.
The computing formula of viscose filtration resistance of the present invention " Kw={ (2-P2/ P1)/(P1+ P2) } * 100000*0.6 " comes from Zhang Zhenya work " the viscose rayon research of a pulp reaction capacity " book (nineteen sixty-five China finance and economics publishing house).
It is as follows that the present invention specifically detects principle: by the compressed air inlet bubbling air on cylindrical shell, by being connected the pressure in the pressometer measurement cylindrical shell on the gland bonnet, when the pressure in the cylindrical shell is the 1-3 kilograms per square centimetres, stop to the compressed air inlet bubbling air; The valve of opening the viscose glue pipe makes viscose glue pass through filter cloth, because the insolubles in the viscose glue is deposited on the filter cloth difficulty in filtration, the filter velocity that constantly increase, make filter cloth and descends successively, the then measurement by viscose glue weight that the stipulated time inner filtration is gone out, draw the filtration resistance Kw value of viscose glue according to Kw={ (2-P2/ P1)/(P1+ P2) } * 100000*0.6 formula, the Kw value that records is numerically to a kind of expression of the prepared viscose filtration performance of pulp.Viscose glue Kw value is more big, and the insolubles in the expression viscose glue is more many, and viscose quality is more poor, and viscose glue Kw value is more little, and the insolubles in the expression viscose glue is more few, and viscose quality is more good.
Beneficial effect of the present invention mainly shows following two aspects:
One, the present invention,, stops to the compressed air inlet bubbling air when the pressure in the cylindrical shell is the 1-3 kilograms per square centimetres by being connected the pressure in the pressometer measurement cylindrical shell on the gland bonnet by the compressed air inlet bubbling air on cylindrical shell; The valve of opening the viscose glue pipe makes viscose glue pass through filter cloth, because the insolubles in the viscose glue is deposited on the filter cloth difficulty in filtration, the filter velocity that constantly increase, make filter cloth and descends successively, the then measurement by viscose glue weight that the stipulated time inner filtration is gone out, draw the filtration resistance Kw value of viscose glue according to Kw={ (2-P2/ P1)/(P1+ P2) } * 100000*0.6 formula, have characteristics fast and accurately.
Two, the present invention mainly is the strainability of measuring the made viscose glue of pulp, that is to say what of impurity and insoluble substance in the indirect reflection viscose glue, impurity is more many, then in back operation spray silk process, easily stop up shower nozzle, cause and produce difficulty, and influence the quality of final viscose rayon, as indexs such as intensity.But the internal performance of testing result indirect reaction viscose glue, testing result favorable reproducibility, detection efficiency height, accuracy height.
Three, the viscose filtration device low cost of manufacture that adopts of the present invention, simple to operate, be beneficial to promotion and implementation.
Description of drawings
Fig. 1 is the structural representation of viscose filtration resistance determinator of the present invention
Mark among the figure: 1, cylindrical shell, 2, gland bonnet, 3, the chuck water delivering orifice, 4, the chuck water inlet, 5, the compressed air inlet, 6, pressometer, 7, valve, 8, the viscose glue pipe, 9, filtrator, 10, filter cloth, 11, stainless steel cloth.
Embodiment
Viscose filtration resistance detection method, adopt viscose filtration resistance determinator to measure, this device comprises the gland bonnet 2 that has open-topped cylindrical shell 1, is installed in cylindrical shell 1 opening part, described cylindrical shell 1 bottom has chuck water delivering orifice 3, cylindrical shell 1 top has chuck water inlet 4 and compressed air inlet 5, be connected with the viscose glue pipe 8 of pressometer 6 and band valve 7 on the described gland bonnet 2, described viscose glue pipe 8 one ends stretch in the cylindrical shell 1, and viscose glue pipe 8 other ends are with filtrator 9; Described filtrator 9 comprises filter cloth 10 and supports the stainless steel cloth 11 of filter cloth 10;
Concrete detection step is as follows:
A, the gland bonnet 2 of cylindrical shell 1 opening part is taken off, in cylindrical shell 1, add viscose glue, it is airtight to cover gland bonnet 2 then, compressed air inlet 5 bubbling airs on the cylindrical shell 1, by being connected the pressure in the pressometer 6 measurement cylindrical shells 1 on the gland bonnet 2, when the pressure in the cylindrical shell 1 is the 1-3 kilograms per square centimetres, stop 5 bubbling airs to the compressed air inlet;
B, open the valve 7 of viscose glue pipe 8, make viscose glue pass through filter cloth 10, pick up counting in the time of at the bottom of viscose glue flows to beaker by filter cloth 10, through closing the valve 7 of viscose glue pipe 8 after 3 minutes, measure the viscose glue flow P1 in the beaker;
C, open the valve 7 of viscose glue pipe 8 and use the another beaker instead again, pick up counting in the time of at the bottom of viscose glue flows to beaker by filter cloth 10, through closing the valve 7 of viscose glue pipe 8 after 6 minutes, measure the viscose glue flow P2 in the beaker;
Calculate the viscose filtration resistance by Kw={ (2-P2/ P1)/(P1+ P2) } * 100000*0.6 at last.
It is as follows that the present invention specifically detects principle: by compressed air inlet 5 bubbling airs on cylindrical shell 1, by being connected the pressure in the pressometer 6 measurement cylindrical shells 1 on the gland bonnet 2, when the pressure in the cylindrical shell 1 is the 1-3 kilograms per square centimetres, stop 5 bubbling airs to the compressed air inlet; The valve 7 of opening viscose glue pipe 8 makes viscose glue pass through filter cloth 10, because the insolubles in the viscose glue is deposited in the difficulty in filtration, the filter velocity that constantly increase, make filter cloth 10 on the filter cloth 10 and descends successively, the then measurement by viscose glue weight that the stipulated time inner filtration is gone out, draw the filtration resistance Kw value of viscose glue according to Kw={ (2-P2/ P1)/(P1+ P2) } * 100000*0.6, the Kw value is more big, insolubles in the expression viscose glue is more many, viscose quality is more poor, the Kw value is more little, insolubles in the expression viscose glue is more few, and viscose quality is more good.
The invention is not restricted to above-described embodiment, but all should fall within the claim protection domain of the present invention.
Claims (3)
1. viscose filtration resistance detection method, it is characterized in that: adopt viscose filtration resistance determinator to measure, this device comprises having open-topped cylindrical shell (1), be installed in the gland bonnet (2) of cylindrical shell (1) opening part, described cylindrical shell (1) bottom has chuck water delivering orifice (3), cylindrical shell (1) top has chuck water inlet (4) and compressed air inlet (5), be connected with the viscose glue pipe (8) of pressometer (6) and band valve (7) on the described gland bonnet (2), described viscose glue pipe (8) one ends stretch in the cylindrical shell (1), and viscose glue pipe (8) other end is with filtrator (9); Described filtrator (9) comprises filter cloth (10) and supports the stainless steel cloth (11) of filter cloth (10);
Concrete detection step is as follows:
A, the gland bonnet (2) of cylindrical shell (1) opening part is taken off, in cylindrical shell (1), add viscose glue, it is airtight to cover gland bonnet (2) then, compressed air inlet (5) bubbling air on the cylindrical shell (1), measure the interior pressure of cylindrical shell (1) by the pressometer (6) that is connected on the gland bonnet (2), when the pressure in the cylindrical shell (1) is the 1-3 kilograms per square centimetres, stop (5) bubbling air to the compressed air inlet;
B, open the valve (7) of viscose glue pipe (8), make viscose glue pass through filter cloth (10), pick up counting in the time of at the bottom of viscose glue flows to beaker by filter cloth (10), through the valve (7) of closing viscose glue pipe (8) after 3 minutes, measure the viscose glue flow P1 in the beaker;
C, open the valve (7) of viscose glue pipe (8) and use the another beaker instead again, pick up counting in the time of at the bottom of viscose glue flows to beaker by filter cloth (10), through the valve (7) of closing viscose glue pipe (8) after 6 minutes, measure the viscose glue flow P2 in the beaker;
D, calculate viscose filtration resistance Kw by { (2-P2/ P1)/(P1+ P2) } * 100000*0.6 at last.
2. according to the described viscose filtration resistance of claim 1 detection method, it is characterized in that: described cylindrical shell (1) is stainless steel cylinder.
3. according to claim 1 or 2 described viscose filtration resistance detection methods, it is characterized in that: described viscose glue pipe (8) is down " U " word shape.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110454389 CN102519840B (en) | 2011-12-30 | 2011-12-30 | Viscose filtering resistance detection method |
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| CN 201110454389 CN102519840B (en) | 2011-12-30 | 2011-12-30 | Viscose filtering resistance detection method |
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| CN102519840A CN102519840A (en) | 2012-06-27 |
| CN102519840B true CN102519840B (en) | 2013-07-17 |
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| CN104237045A (en) * | 2014-06-05 | 2014-12-24 | 上海沃杉化工有限公司 | Novel drainability tester |
| CN107356491B (en) * | 2017-07-12 | 2020-04-10 | 四川新安佳科技有限公司 | Semi-automatic detection device for filtering value of spinning solution |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1111914A (en) * | 1965-07-07 | 1968-05-01 | Buckeye Cellulose Corp | Removal of gels and small particles from viscose |
| CN2118573U (en) * | 1992-01-25 | 1992-10-14 | 潍坊第三轻工机械厂 | High-efficient viscose filter |
| CN102252942A (en) * | 2010-05-20 | 2011-11-23 | 中国制浆造纸研究院 | Viscosity measurement device |
| CN202383038U (en) * | 2011-12-30 | 2012-08-15 | 宜宾长毅浆粕有限责任公司 | Apparatus for measuring viscose filtration resistance |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN87214450U (en) * | 1987-10-17 | 1988-07-20 | 陈炳权 | Continuous viscose rayon-filtering machine |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1111914A (en) * | 1965-07-07 | 1968-05-01 | Buckeye Cellulose Corp | Removal of gels and small particles from viscose |
| CN2118573U (en) * | 1992-01-25 | 1992-10-14 | 潍坊第三轻工机械厂 | High-efficient viscose filter |
| CN102252942A (en) * | 2010-05-20 | 2011-11-23 | 中国制浆造纸研究院 | Viscosity measurement device |
| CN202383038U (en) * | 2011-12-30 | 2012-08-15 | 宜宾长毅浆粕有限责任公司 | Apparatus for measuring viscose filtration resistance |
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Free format text: FORMER OWNER: YIBIN GRACE GROUP COMPANY Effective date: 20130508 Owner name: YIBIN GRACE GROUP COMPANY Free format text: FORMER OWNER: YIBIN CHANGYI POMACE CO., LTD. Effective date: 20130508 |
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Effective date of registration: 20130508 Address after: 644002 space Road, Nan'an economic and Technological Development Zone, Yibin, Sichuan Applicant after: Yibin Grace Group Company Address before: 644002 Yibin, South Bank of the middle of the road, the space shuttle Applicant before: Yibin Changyi Pomace Co., Ltd. Applicant before: Yibin Grace Group Company |
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