CN106290046B - The detection method of impurity content in a kind of paper pulp - Google Patents
The detection method of impurity content in a kind of paper pulp Download PDFInfo
- Publication number
- CN106290046B CN106290046B CN201610777755.1A CN201610777755A CN106290046B CN 106290046 B CN106290046 B CN 106290046B CN 201610777755 A CN201610777755 A CN 201610777755A CN 106290046 B CN106290046 B CN 106290046B
- Authority
- CN
- China
- Prior art keywords
- impurity
- filtering
- paper pulp
- container
- detection method
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 239000012535 impurity Substances 0.000 title claims abstract description 57
- 229920001131 Pulp (paper) Polymers 0.000 title claims abstract description 22
- 238000001514 detection method Methods 0.000 title claims abstract description 17
- 238000001914 filtration Methods 0.000 claims abstract description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000007788 liquid Substances 0.000 claims abstract description 18
- 238000005406 washing Methods 0.000 claims abstract description 16
- 238000001035 drying Methods 0.000 claims abstract description 13
- 239000000706 filtrate Substances 0.000 claims abstract description 4
- 239000000203 mixture Substances 0.000 claims abstract description 4
- 150000004965 peroxy acids Chemical class 0.000 claims abstract description 3
- 238000011049 filling Methods 0.000 claims description 24
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims description 12
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 8
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 5
- 239000002245 particle Substances 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 3
- 239000005416 organic matter Substances 0.000 claims description 3
- 239000007921 spray Substances 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 230000002308 calcification Effects 0.000 claims description 2
- 238000002347 injection Methods 0.000 claims 1
- 239000007924 injection Substances 0.000 claims 1
- 239000000243 solution Substances 0.000 claims 1
- 238000012360 testing method Methods 0.000 abstract description 3
- 230000009466 transformation Effects 0.000 abstract description 3
- 235000010216 calcium carbonate Nutrition 0.000 description 4
- 239000010893 paper waste Substances 0.000 description 3
- 239000002956 ash Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000002002 slurry Substances 0.000 description 2
- 238000003756 stirring Methods 0.000 description 2
- 235000002918 Fraxinus excelsior Nutrition 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000009288 screen filtration Methods 0.000 description 1
- 239000002893 slag Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N5/00—Analysing materials by weighing, e.g. weighing small particles separated from a gas or liquid
Landscapes
- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Paper (AREA)
Abstract
The application provides a kind of detection method of impurity content in paper pulp, includes the following steps, (1) takes the absolute dried sample N1g of paper pulp, adds water washing；(2) liquid after washing is D1 by first of filtering, the filter opening diameter of first of filtering, carries out drying the impurity N2g that weighs to obtain by first of filtered filter residue；(3) second filtering is carried out by first of filtered filtrate, the filter opening diameter of second filtering is D2, D2 < D1, and secondary impurities N3g is obtained after the filtered filter residue of second is dried；(4) by the secondary impurities after drying after peracid treatment, impurity N4g three times is dried to obtain.The detection method of impurity content in a kind of paper pulp of the present invention, the absolute dried sample of paper pulp between desander is subjected to washing filtering, the content of various sizes of impurity is obtained, to select the model of desander according to testing result, or transformation is optimized to desander.Impurity in the application is generally the different sandstone composition of diameter.
Description
Technical field
The present invention relates to a kind of detection methods of impurity content in paper pulp.
Background technique
As waste paper recycles the increase of number in regenerated papermaking, waste paper quality is gradually deteriorated, in waste paper impurity content by
Step increases, especially internal sandstone, and scummer is to remove mainly setting for heavy seeds (sandstone, ash content) in secondary stock line process
It is standby, scummer using effect and pulp quality is directly affected to various impurity removal efficacies, while affecting scummer back segment
The service life of equipment and spare parts, because sandstone is mainly silicon class inorganic salts, hardness is very high, to apparatus casing, screen frame, turns
Son, rotor, impeller of pump will cause considerable wear, and check and evaluation scummer efficiency method is too simple general at present, only by pair
Scummer carries out handsheet into slurry, good slurry and analyzes content of ashes, can only substantially know its counterweight slag eliminates how many, but is difficult accurate
This scummer of analysis be how many to the removal of the sandstone of all size, cause accurately be assessed according to produced paper kind raw material condition
Scummer is difficult to make to the reasonable type selecting of scummer and subsequent optimization.
Summary of the invention
The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide impurity content in a kind of paper pulp
Detection method, to select the desander of suitable type according to detection structure.
In order to solve the above technical problems, the present invention adopts the following technical scheme that:
The detection method of impurity content, includes the following steps in a kind of paper pulp,
(1) the absolute dried sample N1g for taking paper pulp, adds water washing；
(2) for the liquid after washing by first of filtering, the filter opening diameter of first of filtering is D1, is filtered by first
Filter residue afterwards carries out drying the impurity N2g that weighs to obtain；
(3) second filtering is carried out by first of filtered filtrate, the filter opening diameter of second filtering is D2, D2 <
D1 obtains secondary impurities N3g after the filtered filter residue of second is dried；
(4) by the secondary impurities after drying after peracid treatment, impurity N4g three times is dried to obtain.
Preferably, in step (1), absolute dried sample is placed in wash mill and is washed, the wash mill includes holding
Device, the filling pipe being arranged in the container, the end of the filling pipe are connected with the bottom of the container,
Be provided with multiple spray nozzle for spraying water on the side wall of the filling pipe, the water of washing from the nozzle of filling pipe into
Enter in the container.
Preferably, multiple nozzles are circumferentially arranged along the side wall of the filling pipe, the nozzle distance
Bottom 10cm~20cm of the container.
Preferably, the step (1) is specifically, absolute dried sample is added in the container, by filling pipe to
In container plus water continues after mixing evenly plus water makes receptacle overflow, closes water inlet after the liquid in container becomes clearly.
Preferably, flow-controlling meter and hand valve are installed on the filling pipe.
Preferably, the method further includes that step (5) calculates the impurity ratio that particle diameter in absolute dried sample is greater than D1
For N2/N1, calculating the particle diameter in absolute dried sample to be greater than D2 and the impurity ratio less than D1 is N3/N1, calculates absolute dried sample
Middle CaCO3 content is (N3-N4)/N1.
Preferably, the filter opening diameter of described first filtering is 400 μm~500 μm, the filter of the second filtering
Bore dia is 50 μm~80 μm.
Preferably, in step (4) specifically, citric acid is added into secondary impurities, stirring 30~45 minutes keeps temperature
80 DEG C~85 DEG C, the CaCO3 in secondary impurities is removed, drying obtains impurity N4g three times after solution is filtered.
Preferably, in step (4), the diameter of the filter opening of filtering is D2.
Due to the use of above technical scheme, the invention has the following advantages over the prior art:
The detection method of impurity content in a kind of paper pulp of the present invention, by the absolute dried sample of paper pulp between desander into
Row washing filtering, obtains the content of various sizes of impurity, to select the model of desander according to testing result, or to desanding
Device optimizes transformation.Impurity in the application is generally the different sandstone composition of diameter.
Detailed description of the invention
Attached drawing 1 is the structural schematic diagram of wash mill described herein；
Attached drawing 2 is the structural schematic diagram of water filling device described herein,
Wherein: 1, container；21, filling pipe；22, flow-controlling meter；23, hand valve；24, nozzle.
Specific embodiment
The present invention is described in further details below in conjunction with specific embodiment.It should be understood that these embodiments are for saying
The bright basic principles, principal features and advantages of the present invention, and the present invention is not by the scope limitation of following embodiment.It is adopted in embodiment
Implementation condition can do further adjustment according to specific requirement, and the implementation condition being not specified is usually the item in routine experiment
Part.
The detection method of impurity content, includes the following steps in a kind of paper pulp described herein,
(1) absolute dried sample is placed in wash mill and is washed, the wash mill include container 1, be arranged in it is described
Filling pipe 21 in container 1, the end of the filling pipe 21 are connected with the bottom of the container 1, the note
Be provided with multiple spray nozzle for spraying water 24 on the side wall of waterpipe 21, the water of washing from the nozzle 24 of filling pipe 21 into
Enter in the container 1, multiple nozzles 24 are circumferentially arranged along the side wall of the filling pipe 21, the nozzle
24 bottom 10cm~20cm apart from the container 1 is equipped with flow-controlling meter 22 and hand valve on the filling pipe 21
23, water is added into container 1 by filling pipe 21, after mixing evenly, continues plus water makes 1 overflow of container, the liquid in container 1
Water inlet is closed after becoming clear；
(2) for the liquid after washing by first of filtering, the filter opening diameter of first of filtering is D1, is filtered by first
Filter residue afterwards carries out drying the impurity N2g that weighs to obtain, it is preferable that D1 is 500 μm；
(3) second filtering is carried out by first of filtered filtrate, the filter opening diameter of second filtering is D2, D2 <
D1 obtains secondary impurities N3g after the filtered filter residue of second is dried, it is preferable that D2 is 50 μm；
(4) citric acid is added into secondary impurities, stirs 30 minutes~45 minutes, is kept for 80 DEG C~85 DEG C of temperature, removes
CaCO3 in secondary impurities, drying obtains impurity N4g three times after solution is filtered, and the diameter of the filter opening of filtering is D2, preferably
Ground, D2 are 50 μm；
(5) calculating impurity ratio of the particle diameter greater than D1 in absolute dried sample is N2/N1, calculates the particle in absolute dried sample
It is N3/N1 that diameter, which is greater than D2 and the impurity ratio less than D1, and calculating CaCO3 content in absolute dried sample is (N3-N4)/N1.
It is preferably carried out in mode in one kind, takes 400g absolute dried sample, taken 100g to be put into washing in wash mill every time, wash
When washing, 50% liquid level is added water into container 1, is stirred evenly, water filling device is put into the container 1, makes filling pipe
21 end is located at 1 bottom of container, and for nozzle 24 apart from 1 bottom 10cm of container, adjusting flow by flow-controlling meter 22 is 17-
18L/min keeps 20-25min after 1 overflow of container, closes water inlet after overflow liquid becomes clearly, waits 1 minute, and container 1 is also
Including a blowdown valve, blowdown valve is opened, liquid is drained into 50% liquid level, rejoin 100g absolute dried sample, repeats above step,
Until the complete slice of 400g sample is completed.Water filling device is taken out out of container 1, it will be in the liquid pouring in container 1 to container 1
There remains the residual liquid of 15ml or so, in the process, since the contamination precipitation in liquid is in 1 bottom of container, in draining and
It, will not be with liquid outflowing container 1 during toppling over.The liquid of remaining 15ml is transferred in the bucket of 20L, and is rushed with clear water
Container 1 is washed, the residue in container 1 is transferred in bucket completely.It is filtered using 500 μm of sieve, filtered filter residue
3 drying are carried out in 575 DEG C or so of baking oven, and the organic matter in filter residue is removed to obtain an impurity N2g.By filtered filter
Liquid is refiltered with 50 μm of sieve, the calcification in 575 DEG C of baking oven, is removed organic matter, is obtained secondary impurities N3g.It will be residual
Excess is transferred in 500ml beaker, and 80 DEG C of citric acid is added in beaker to 2/3 liquid level, is stirred 30 minutes, and keeps 80
DEG C, 50 μm of screen filtration, and the drying in oven by residue at 105 DEG C are being used, impurity N4g three times is obtained after drying.
According to the method can desander to each board accurately assessed, and make the quantity for increasing desander or replacement desander
Model reduces equipment attrition to improve pulp quality.
The detection method of impurity content in a kind of paper pulp of the present invention, by the absolute dried sample of paper pulp between desander into
Row washing filtering, obtains the content of various sizes of impurity, to select the model of desander according to testing result, or to desanding
Device optimizes transformation.Impurity in the application is generally the different sandstone composition of diameter.
The present invention is described in detail above, the explanation of embodiment be merely used to help understand method of the invention and
Its core concept, its object is to allow the personage for being familiar with this field technology to can understand the content of the present invention and implement it accordingly, and
The protection scope that the present invention cannot be limited in this way.Any equivalent change or modification in accordance with the spirit of the invention should all be contained
Lid is within protection scope of the present invention.
Claims (6)
1. the detection method of impurity content in a kind of paper pulp, it is characterised in that: impurity is the different sandstone composition of diameter, including with
Lower step,
(1) the absolute dried sample N1g for taking paper pulp, absolute dried sample is placed in wash mill and is washed, and adds water washing, the washing dress
Set including container (1), the filling pipe (21) being arranged in the container (1), the end of the filling pipe (21) with
The bottom of the container (1) is connected, and is provided with multiple spray nozzle for spraying water on the side wall of the filling pipe (21)
(24), the water of washing enters in the container (1) at the nozzle (24) of filling pipe (21), multiple nozzles
(24) being circumferentially arranged along the side wall of the filling pipe (21), bottom 10 of the nozzle (24) apart from the container
~20cm after mixing evenly, continues by filling pipe (21) to container (1) Nei Jiashui plus water makes container (1) overflow, work as appearance
Liquid in device (1) closes water inlet after becoming clear；
(2) for the liquid after washing by first of filtering, the filter opening diameter of first of filtering is D1, filtered by first
Filter residue carries out drying the impurity N2g that weighs to obtain；
(3) second filtering is carried out by first of filtered filtrate, the filter opening diameter of second filtering is D2, D2 < D1,
By the calcification in 575 DEG C of baking oven of the filtered filter residue of second, organic matter is removed, secondary impurities N3g is obtained after being dried；
(4) secondary impurities after drying carry out to the filtering of third road after peracid treatment, the residue being obtained by filtration dry three
Secondary impurity N4g calculates CaCO in absolute dried sample3Content is (N3-N4)/N1.
2. the detection method of impurity content in a kind of paper pulp according to claim 1, it is characterised in that: the water injection pipe
Flow-controlling meter and hand valve are installed on road.
3. the detection method of impurity content in a kind of paper pulp according to claim 1, it is characterised in that: the method is also
Including it is N2/N1 that step (5), which calculates impurity ratio of the particle diameter greater than D1 in absolute dried sample, calculates in absolute dried sample
It is N3/N1 that grain diameter, which is greater than D2 and the impurity ratio less than D1,.
4. the detection method of impurity content in a kind of paper pulp according to claim 1, it is characterised in that: described first
The filter opening diameter of filtering is 400~500 μm, and the filter opening diameter of the second filtering is 50-80 μm.
5. the detection method of impurity content in a kind of paper pulp according to claim 1, it is characterised in that: have in step (4)
Body is that citric acid is added into secondary impurities, is stirred 30~45 minutes, is kept for 80 DEG C~85 DEG C of temperature, is removed in secondary impurities
CaCO3, drying obtains impurity N4g three times after solution is filtered.
6. the detection method of impurity content in a kind of paper pulp according to claim 4, it is characterised in that: in step (4),
The diameter of the filter opening of filtering is D2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610777755.1A CN106290046B (en) | 2016-08-31 | 2016-08-31 | The detection method of impurity content in a kind of paper pulp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610777755.1A CN106290046B (en) | 2016-08-31 | 2016-08-31 | The detection method of impurity content in a kind of paper pulp |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106290046A CN106290046A (en) | 2017-01-04 |
| CN106290046B true CN106290046B (en) | 2019-10-08 |
Family
ID=57672897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610777755.1A Active CN106290046B (en) | 2016-08-31 | 2016-08-31 | The detection method of impurity content in a kind of paper pulp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106290046B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107655784A (en) * | 2017-09-13 | 2018-02-02 | 广西大学 | A kind of method of granule sludge calcification in measure paper waste |
| CN111929195A (en) * | 2020-08-05 | 2020-11-13 | 深圳市检验检疫科学研究院 | Method for detecting regenerated pulp inclusion |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1314514A (en) * | 2001-05-16 | 2001-09-26 | 北京造纸七厂 | Purifying method for pulp |
| CN2866265Y (en) * | 2005-11-16 | 2007-02-07 | 颜建民 | Portable brushing and washing cleaner for vehicle |
| CN101532935A (en) * | 2009-04-28 | 2009-09-16 | 江苏力星钢球有限公司 | Method for detecting cleaning degree of steel ball with high precision and filtering device thereof |
| CN104187438A (en) * | 2014-08-19 | 2014-12-10 | 四川谷黄金集团有限公司 | Jet flow diffusion type unpolished rice washing and sprouting device |
| CN104535448A (en) * | 2015-01-13 | 2015-04-22 | 北京林业大学 | Method for measuring absorptive capacity of plant leaves to particles and adsorption particle size grades |
| CN204855293U (en) * | 2015-07-24 | 2015-12-09 | 深圳市颖博油墨实业有限公司 | A device for detecting impurity |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204630870U (en) * | 2015-06-04 | 2015-09-09 | 川渝中烟工业有限责任公司 | For measuring the device of the tiny component concentration of paper pulp or tobacco pulp |
-
2016
- 2016-08-31 CN CN201610777755.1A patent/CN106290046B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1314514A (en) * | 2001-05-16 | 2001-09-26 | 北京造纸七厂 | Purifying method for pulp |
| CN2866265Y (en) * | 2005-11-16 | 2007-02-07 | 颜建民 | Portable brushing and washing cleaner for vehicle |
| CN101532935A (en) * | 2009-04-28 | 2009-09-16 | 江苏力星钢球有限公司 | Method for detecting cleaning degree of steel ball with high precision and filtering device thereof |
| CN104187438A (en) * | 2014-08-19 | 2014-12-10 | 四川谷黄金集团有限公司 | Jet flow diffusion type unpolished rice washing and sprouting device |
| CN104535448A (en) * | 2015-01-13 | 2015-04-22 | 北京林业大学 | Method for measuring absorptive capacity of plant leaves to particles and adsorption particle size grades |
| CN204855293U (en) * | 2015-07-24 | 2015-12-09 | 深圳市颖博油墨实业有限公司 | A device for detecting impurity |
Non-Patent Citations (1)
| Title |
|---|
| 柠檬酸;机械制造工艺材料技术手册编写组;《机械制造工艺材料技术手册》;机械工业出版社;19931231;第363页 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106290046A (en) | 2017-01-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105641993B (en) | Livestock breeding wastewater filter and its method | |
| CN106290046B (en) | The detection method of impurity content in a kind of paper pulp | |
| CN105547905B (en) | A kind of measurement device and assay method of concrete mixing plant waste slurry solid content | |
| CN106927601A (en) | A kind of environmentally friendly papermaking wastewater recycling and processing device | |
| CN207243625U (en) | Spinning and weaving workshop dyeing waste processing unit | |
| CN206464244U (en) | A kind of Winkle cleaning machine | |
| CN204162685U (en) | Pretreatment system before vegetable seed oil expression | |
| CN104674517B (en) | A kind of filter and washing machine | |
| CN205276454U (en) | Water conservancy particle separation device | |
| CN107585911A (en) | A kind of filter plant of desalinization seawater | |
| CN108046485B (en) | The technique of light electrolysis and combinations thereof pretreatment electrophoresis waste water | |
| CN207668099U (en) | Auto parts machinery aluminium ring cleans screening plant | |
| CN205463373U (en) | Special washing equipment of rosin fat liquid | |
| CN213792695U (en) | Grading wet sieve device for measuring annual sticky heavy sample by virtue of photoluminescence | |
| CN204799678U (en) | Drip washing desorption soil pollutant's integrated device is mixed to dystopy | |
| CN103861348A (en) | Double-filtering-drum filter with online automatic washing function | |
| CN211513580U (en) | Finish machining conveyor of cement for building bridge | |
| CN203916853U (en) | The evaluating apparatus of titanium dioxide sand milling effect | |
| CN103830951B (en) | Cylinder solid-liquid separator | |
| CN207980532U (en) | One kind can automatically adjust the self-cleaning concentrator of concentration | |
| CN219245161U (en) | Device for rapidly collecting fine particles from water-washing test solution | |
| CN211394148U (en) | Sewage sedimentation device for chemical industry | |
| CN206008133U (en) | A kind of media performance test screen analog | |
| CN220361595U (en) | Sand and stone cleaning device | |
| CN217854735U (en) | Adjustable sand washing device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20231212 Address after: 536000, No. 99 Gangzhong Road, Xinggang Town, Tieshangang District, Beihai City, Guangxi Zhuang Autonomous Region Patentee after: Jiulong Paper Industry (Beihai) Co.,Ltd. Address before: Jiulong Road, Port Development Zone, Taicang City, Suzhou City, Jiangsu Province Patentee before: NINE DRAGONS PAPER (TAICANG) Co.,Ltd. |