AT241960B - Method for removing impurities separated when cleaning suspensions, in particular fibrous suspensions, and devices for carrying out the method - Google Patents

Method for removing impurities separated when cleaning suspensions, in particular fibrous suspensions, and devices for carrying out the method

Info

Publication number
AT241960B
AT241960B AT591160A AT591160A AT241960B AT 241960 B AT241960 B AT 241960B AT 591160 A AT591160 A AT 591160A AT 591160 A AT591160 A AT 591160A AT 241960 B AT241960 B AT 241960B
Authority
AT
Austria
Prior art keywords
suspensions
carrying
devices
removing impurities
cleaning
Prior art date
Application number
AT591160A
Other languages
German (de)
Original Assignee
Voith Gmbh J M
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
Application filed by Voith Gmbh J M filed Critical Voith Gmbh J M
Application granted granted Critical
Publication of AT241960B publication Critical patent/AT241960B/en

Links

Classifications

    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21G—CALENDERS; ACCESSORIES FOR PAPER-MAKING MACHINES
    • D21G9/00—Other accessories for paper-making machines
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J2/00—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
    • B01J2/30—Processes or devices for granulating materials, e.g. fertilisers in general; Rendering particulate materials free flowing in general, e.g. making them hydrophobic using agents to prevent the granules sticking together; Rendering particulate materials free flowing in general, e.g. making them hydrophobic
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
    • B04C5/00—Apparatus in which the axial direction of the vortex is reversed
    • B04C5/14—Construction of the underflow ducting; Apex constructions; Discharge arrangements ; discharge through sidewall provided with a few slits or perforations
    • B04C5/15—Construction of the underflow ducting; Apex constructions; Discharge arrangements ; discharge through sidewall provided with a few slits or perforations with swinging flaps or revolving sluices; Sluices; Check-valves
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
    • B04C5/00—Apparatus in which the axial direction of the vortex is reversed
    • B04C5/14—Construction of the underflow ducting; Apex constructions; Discharge arrangements ; discharge through sidewall provided with a few slits or perforations
    • B04C5/18—Construction of the underflow ducting; Apex constructions; Discharge arrangements ; discharge through sidewall provided with a few slits or perforations with auxiliary fluid assisting discharge
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B04—CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
    • B04C—APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
    • B04C5/00—Apparatus in which the axial direction of the vortex is reversed
    • B04C5/14—Construction of the underflow ducting; Apex constructions; Discharge arrangements ; discharge through sidewall provided with a few slits or perforations
    • B04C5/185—Dust collectors
    • C—CHEMISTRY; METALLURGY
    • C05—FERTILISERS; MANUFACTURE THEREOF
    • C05C—NITROGENOUS FERTILISERS
    • C05C9/00—Fertilisers containing urea or urea compounds
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C273/00—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups
    • C07C273/02—Preparation of urea or its derivatives, i.e. compounds containing any of the groups, the nitrogen atoms not being part of nitro or nitroso groups of urea, its salts, complexes or addition compounds
    • C07C273/14—Separation; Purification; Stabilisation; Use of additives
    • C07C273/16—Separation; Purification

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Cleaning By Liquid Or Steam (AREA)
  • Cyclones (AREA)
AT591160A 1959-09-11 1960-08-02 Method for removing impurities separated when cleaning suspensions, in particular fibrous suspensions, and devices for carrying out the method AT241960B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEV17231A DE1197436B (en) 1959-09-11 1959-09-11 Vortex separator

Publications (1)

Publication Number Publication Date
AT241960B true AT241960B (en) 1965-08-25

Family

ID=7576220

Family Applications (1)

Application Number Title Priority Date Filing Date
AT591160A AT241960B (en) 1959-09-11 1960-08-02 Method for removing impurities separated when cleaning suspensions, in particular fibrous suspensions, and devices for carrying out the method

Country Status (5)

Country Link
AT (1) AT241960B (en)
BE (1) BE594872A (en)
CH (1) CH390223A (en)
DE (1) DE1197436B (en)
GB (1) GB945943A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4758308A (en) * 1985-03-05 1988-07-19 Carr Wayne F System for monitoring contaminants with a detector in a paper pulp stream

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2312706A (en) * 1938-11-19 1943-03-02 Nichols Eng & Res Corp Method and apparatus for separating heavy particles from paper pulp suspensions

Also Published As

Publication number Publication date
GB945943A (en) 1964-01-08
CH390223A (en) 1965-04-15
DE1197436B (en) 1965-07-29
BE594872A (en)

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