SE9901066D0 - System for evacuation of sediment from containers - Google Patents

System for evacuation of sediment from containers

Info

Publication number
SE9901066D0
SE9901066D0 SE9901066A SE9901066A SE9901066D0 SE 9901066 D0 SE9901066 D0 SE 9901066D0 SE 9901066 A SE9901066 A SE 9901066A SE 9901066 A SE9901066 A SE 9901066A SE 9901066 D0 SE9901066 D0 SE 9901066D0
Authority
SE
Sweden
Prior art keywords
pump
vessel
drive mechanism
operate
series
Prior art date
Application number
SE9901066A
Other languages
Swedish (sv)
Other versions
SE9901066L (en
SE511991C2 (en
Inventor
Kenneth Naeslund
Anders Larsson
Original Assignee
Kvaerner Pulping Tech
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 Kvaerner Pulping Tech filed Critical Kvaerner Pulping Tech
Priority to SE9901066A priority Critical patent/SE511991C2/en
Publication of SE9901066D0 publication Critical patent/SE9901066D0/en
Publication of SE9901066L publication Critical patent/SE9901066L/en
Publication of SE511991C2 publication Critical patent/SE511991C2/en

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D21/00—Separation of suspended solid particles from liquids by sedimentation
    • B01D21/24—Feed or discharge mechanisms for settling tanks
    • B01D21/245—Discharge mechanisms for the sediments
    • D—TEXTILES; PAPER
    • D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
    • D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
    • D21C11/00—Regeneration of pulp liquors or effluent waste waters
    • D21C11/0064—Aspects concerning the production and the treatment of green and white liquors, e.g. causticizing green liquor

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Treatment Of Sludge (AREA)
  • Jet Pumps And Other Pumps (AREA)

Abstract

Two sludge removal pumps (1, 2) are arranged in series and are each connected to their own drive mechanisms (4, 5a, 5b). The mechanism for the second pump is altered depending on pressure build-up at the first pump. A system for removing sludge from a vessel or transport device (1) comprises a first pump (2) located in the outlet in the lower region of the vessel. The suction side of the pump is connected to base of the vessel, and a second pump (3) is arranged in series with the first pump with the suction side connected to the exit side of the first pump. A first drive mechanism (4) is used to operate the first pump for a first given time period, and a second drive mechanism (5a, 5b) is used to operate the second pump. A detection device (7) is used to monitor a parameter associated with pressure build-up in the first pump, and this data is used to actuate an activation device (11) for activating the second drive mechanism in order to alter the pump capacity of the second pump.
SE9901066A 1999-03-24 1999-03-24 Sludge removal system for vessel or transport device used for green liquor treatment in pulping process SE511991C2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SE9901066A SE511991C2 (en) 1999-03-24 1999-03-24 Sludge removal system for vessel or transport device used for green liquor treatment in pulping process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SE9901066A SE511991C2 (en) 1999-03-24 1999-03-24 Sludge removal system for vessel or transport device used for green liquor treatment in pulping process

Publications (3)

Publication Number Publication Date
SE9901066D0 true SE9901066D0 (en) 1999-03-24
SE9901066L SE9901066L (en) 2000-01-10
SE511991C2 SE511991C2 (en) 2000-01-10

Family

ID=20414978

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9901066A SE511991C2 (en) 1999-03-24 1999-03-24 Sludge removal system for vessel or transport device used for green liquor treatment in pulping process

Country Status (1)

Country Link
SE (1) SE511991C2 (en)

Also Published As

Publication number Publication date
SE9901066L (en) 2000-01-10
SE511991C2 (en) 2000-01-10

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Legal Events

Date Code Title Description
RPOP Patent has been republished in amended form after opposition
NUG Patent has lapsed