FR2196186A1 - Static settling tank for sugar refinery - for fragile flocculates - Google Patents

Static settling tank for sugar refinery - for fragile flocculates

Info

Publication number
FR2196186A1
FR2196186A1 FR7229262A FR7229262A FR2196186A1 FR 2196186 A1 FR2196186 A1 FR 2196186A1 FR 7229262 A FR7229262 A FR 7229262A FR 7229262 A FR7229262 A FR 7229262A FR 2196186 A1 FR2196186 A1 FR 2196186A1
Authority
FR
France
Prior art keywords
tank
liq
fragile
evacuated
sugar refinery
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.)
Granted
Application number
FR7229262A
Other languages
French (fr)
Other versions
FR2196186B3 (en
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.)
Fives Lille Cail
Original Assignee
Fives Lille Cail
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 Fives Lille Cail filed Critical Fives Lille Cail
Priority to FR7229262A priority Critical patent/FR2196186A1/en
Publication of FR2196186A1 publication Critical patent/FR2196186A1/en
Application granted granted Critical
Publication of FR2196186B3 publication Critical patent/FR2196186B3/fr
Granted legal-status Critical Current

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
    • B01D21/02—Settling tanks with single outlets for the separated liquid
    • B01D21/04—Settling tanks with single outlets for the separated liquid with moving scrapers
    • B01D21/06—Settling tanks with single outlets for the separated liquid with moving scrapers with rotating scrapers
    • 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
    • B01D21/2405—Feed mechanisms for settling tanks
    • 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
    • B01D21/2427—The feed or discharge opening located at a distant position from the side walls
    • 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
    • B01D21/2461—Positive-displacement pumps; Screw feeders; Trough conveyors
    • 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
    • B01D21/30—Control equipment
    • 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
    • B01D21/30—Control equipment
    • B01D21/34—Controlling the feed distribution; Controlling the liquid level ; Control of process parameters
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D2221/00—Applications of separation devices
    • B01D2221/06—Separation devices for industrial food processing or agriculture

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physical Water Treatments (AREA)

Abstract

The tank, notably for use in a sugar refinery for treating the sugar juices before liming, comprises a cylindrical tank (10) with a vertical axis; it has a conical base (12) and a cover (14). The liq. to be purified is introduced by an annular overflow (16) from which it pours into an annular, vertical conduit (18) formed by the wall of the tank and an internal, concentric skirt (20). The liq from the overflow, with its crenellated edge to ensure uniform distribution, flows through (18) and reaches the bottom of the tank via the circular space (22); the clarified liq. flows into a central bowl (26) from which it is evacuated by the pipe (28). A scraping system at the bottom of the tank, with blades (30) rotated by a mechanism (36), brings the sludge to a central pit (38) from which it is evacuated by pump (40). The liq. feed is uniform around the whole periphery of the tank so that its speed is very low when it penetrates the sludge bed; this allows the treatment of prods. with a very light, fragile flocculate and also reduces the dwell time.
FR7229262A 1972-08-16 1972-08-16 Static settling tank for sugar refinery - for fragile flocculates Granted FR2196186A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR7229262A FR2196186A1 (en) 1972-08-16 1972-08-16 Static settling tank for sugar refinery - for fragile flocculates

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR7229262A FR2196186A1 (en) 1972-08-16 1972-08-16 Static settling tank for sugar refinery - for fragile flocculates

Publications (2)

Publication Number Publication Date
FR2196186A1 true FR2196186A1 (en) 1974-03-15
FR2196186B3 FR2196186B3 (en) 1975-10-03

Family

ID=9103230

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7229262A Granted FR2196186A1 (en) 1972-08-16 1972-08-16 Static settling tank for sugar refinery - for fragile flocculates

Country Status (1)

Country Link
FR (1) FR2196186A1 (en)

Also Published As

Publication number Publication date
FR2196186B3 (en) 1975-10-03

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Legal Events

Date Code Title Description
ST Notification of lapse