GB638320A - Improved method and apparatus for controlling the consistency of a mixture of liquidand other material - Google Patents

Improved method and apparatus for controlling the consistency of a mixture of liquidand other material

Info

Publication number
GB638320A
GB638320A GB2817147A GB2817147A GB638320A GB 638320 A GB638320 A GB 638320A GB 2817147 A GB2817147 A GB 2817147A GB 2817147 A GB2817147 A GB 2817147A GB 638320 A GB638320 A GB 638320A
Authority
GB
United Kingdom
Prior art keywords
mixture
felting
consistency
tank
pulp
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.)
Expired
Application number
GB2817147A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hawley Products Co
Original Assignee
Hawley Products Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority to US51212243 priority Critical patent/US2437715A/en
Application filed by Hawley Products Co filed Critical Hawley Products Co
Priority to GB2817147A priority patent/GB638320A/en
Publication of GB638320A publication Critical patent/GB638320A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
    • G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
    • G01N21/47—Scattering, i.e. diffuse reflection
    • G01N21/49—Scattering, i.e. diffuse reflection within a body or fluid
    • G01N21/53—Scattering, i.e. diffuse reflection within a body or fluid within a flowing fluid, e.g. smoke
    • G01N21/534—Scattering, i.e. diffuse reflection within a body or fluid within a flowing fluid, e.g. smoke by measuring transmission alone, i.e. determining opacity
    • 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
    • G01N15/06—Investigating concentration of particle suspensions

Landscapes

  • Chemical & Material Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Dispersion Chemistry (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)

Abstract

638,320. Controlling consistency of paper putp; felting. MERCER, R. (Hawley Products Co.]. Oct. 21, 1947, No. 28171. [Class 96] [Also in Group XXXV] The consistency of a mixture of liquid and pulp is controlled by a pair of photo-cells which compare the light transmission of the mixture with that of the liquid from which the pulp has been extracted. A relay-operated valve controls the admission of the mixture when the consistency falls. Pulp .and liquid are mixed in the beater tank 1 and pass to a storage tank 5 from whence the mixture is admitted to the felting tank 10 by a hydraulically-operated slide valve 12, controlled by a valve 20, in turn controlled by a solenoid in the control unit 24. The pulp is deposited on a porous felting former mounted on the felting carriage 25, and the water is withdrawn by suction to a header 26 from whence it returns to the felting tank 10 through an overflow 30 and through a glass windowed absorbtion cell 33, Fig. 3 (not shown). The mixture in the tank is pump circulated through a similar cell 32. Light from a pair of lamps passes through these absorbtion cells to photo-cells connected in the control circuit 24 (see Group XXXV) which opens the valve 12 whenever the consistency falls below a preset level.
GB2817147A 1943-11-29 1947-10-21 Improved method and apparatus for controlling the consistency of a mixture of liquidand other material Expired GB638320A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US51212243 US2437715A (en) 1943-11-29 1943-11-29 Consistency control
GB2817147A GB638320A (en) 1947-10-21 1947-10-21 Improved method and apparatus for controlling the consistency of a mixture of liquidand other material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2817147A GB638320A (en) 1947-10-21 1947-10-21 Improved method and apparatus for controlling the consistency of a mixture of liquidand other material

Publications (1)

Publication Number Publication Date
GB638320A true GB638320A (en) 1950-06-07

Family

ID=10271407

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2817147A Expired GB638320A (en) 1943-11-29 1947-10-21 Improved method and apparatus for controlling the consistency of a mixture of liquidand other material

Country Status (1)

Country Link
GB (1) GB638320A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9989476B2 (en) 2013-11-24 2018-06-05 Kemira Oyj Optical determination of anionic charge in a process stream

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9989476B2 (en) 2013-11-24 2018-06-05 Kemira Oyj Optical determination of anionic charge in a process stream

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