SE8003414L - LINE MONITORING THE FIBER LENGTH IN MECHANICAL MASSES - Google Patents
LINE MONITORING THE FIBER LENGTH IN MECHANICAL MASSESInfo
- Publication number
- SE8003414L SE8003414L SE8003414A SE8003414A SE8003414L SE 8003414 L SE8003414 L SE 8003414L SE 8003414 A SE8003414 A SE 8003414A SE 8003414 A SE8003414 A SE 8003414A SE 8003414 L SE8003414 L SE 8003414L
- Authority
- SE
- Sweden
- Prior art keywords
- fibre length
- pulp
- retained
- determining
- line monitoring
- Prior art date
Links
- 238000012544 monitoring process Methods 0.000 title abstract 2
- 239000000835 fiber Substances 0.000 abstract 5
- 230000000717 retained effect Effects 0.000 abstract 3
- 230000001186 cumulative effect Effects 0.000 abstract 2
- 238000000034 method Methods 0.000 abstract 2
- 239000000725 suspension Substances 0.000 abstract 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/02—Investigating particle size or size distribution
- G01N15/0272—Investigating particle size or size distribution with screening; with classification by filtering
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
- G01N33/34—Paper
- G01N33/343—Paper pulp
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Physics & Mathematics (AREA)
- Physics & Mathematics (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Dispersion Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Medicinal Chemistry (AREA)
- Paper (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
ON-LINE MONITORING OF FIBRE LENGTH OF MECHANICAL PULPS FOR DISCLOSURE A method and an apparatus for determining the fibre length distribution by weight of a pulp and a method and apparatus for determining absolute consistency are disclosed. The fibre length distribution is obtained by dividing the flow of a pulp sample into two separate flows, fractionating each of the flows by a screen into a retained and a through fraction, the screens being of different mesh sizes, measuring the amounts of each of a selected one of said retained or through fractions and determining, based on the cumulative normal distribution relationship of cumulative retained fraction in % of feed to fibre length, the fibre length distribution of the pulp sample. The consistency meter operates on the principal of continuously vibrating a tube while continuously feeding pulp suspension therethrough and measuring the frequency of vibration of the tube to determine consistency substantially free of other properties of the pulp.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CA000327146A CA1138224A (en) | 1979-05-08 | 1979-05-08 | On-line monitoring of fibre length of mechanical pulps |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| SE8003414L true SE8003414L (en) | 1980-11-09 |
| SE436903B SE436903B (en) | 1985-01-28 |
Family
ID=4114158
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| SE8003414A SE436903B (en) | 1979-05-08 | 1980-05-07 | SET AND DEVICE FOR LINE DETERMINATION OF THE IMPORTANT FIBER LENGTH DISTRIBUTION IN A MASS |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JPS55151243A (en) |
| AU (1) | AU528831B2 (en) |
| CA (1) | CA1138224A (en) |
| FI (1) | FI69707C (en) |
| SE (1) | SE436903B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080141796A1 (en) * | 2006-10-03 | 2008-06-19 | Lawrence Doka Gaultney | Apparatus and method for testing sprayability of a liquid composition |
-
1979
- 1979-05-08 CA CA000327146A patent/CA1138224A/en not_active Expired
-
1980
- 1980-05-07 SE SE8003414A patent/SE436903B/en not_active IP Right Cessation
- 1980-05-07 FI FI801477A patent/FI69707C/en not_active IP Right Cessation
- 1980-05-07 AU AU58188/80A patent/AU528831B2/en not_active Ceased
- 1980-05-08 JP JP6118980A patent/JPS55151243A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| AU528831B2 (en) | 1983-05-12 |
| FI801477A (en) | 1980-11-09 |
| FI69707C (en) | 1986-03-10 |
| FI69707B (en) | 1985-11-29 |
| JPS55151243A (en) | 1980-11-25 |
| CA1138224A (en) | 1982-12-28 |
| AU5818880A (en) | 1980-11-13 |
| SE436903B (en) | 1985-01-28 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| NUG | Patent has lapsed |
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