GB908879A - Improvements in or relating to methods of filtering and filtering apparatus - Google Patents

Improvements in or relating to methods of filtering and filtering apparatus

Info

Publication number
GB908879A
GB908879A GB18035/61A GB1803561A GB908879A GB 908879 A GB908879 A GB 908879A GB 18035/61 A GB18035/61 A GB 18035/61A GB 1803561 A GB1803561 A GB 1803561A GB 908879 A GB908879 A GB 908879A
Authority
GB
United Kingdom
Prior art keywords
valve
reservoir
suspension
flow line
filter
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
GB18035/61A
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.)
G PEPIN FILS AINE ETS
Original Assignee
G PEPIN FILS AINE ETS
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 G PEPIN FILS AINE ETS filed Critical G PEPIN FILS AINE ETS
Publication of GB908879A publication Critical patent/GB908879A/en
Expired legal-status Critical Current

Links

Classifications

    • 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
    • B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
    • B01J20/02—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material
    • B01J20/10—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising inorganic material comprising silica or silicate
    • B01J20/14—Diatomaceous earth
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D37/00—Processes of filtration
    • B01D37/02—Precoating the filter medium; Addition of filter aids to the liquid being filtered
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D37/00—Processes of filtration
    • B01D37/04—Controlling the filtration

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Inorganic Chemistry (AREA)
  • Analytical Chemistry (AREA)
  • Organic Chemistry (AREA)
  • Filtration Of Liquid (AREA)

Abstract

908,879. Feeding filter aid. ETABLISSEMENTS G. PEPIN FILS AINE ET SOC. DU FILTRE GASQUET, and BERRY, G. May 17, 1961 [Nov. 7, 1960], No. 18035/61. Class 46. To form a bed on a filter (not shown)- beyond a point 25 in a flow line 30, diatomaceous earth is deposited in a reservoir I and made into a suspension by pre-filt admitted at 2, 34. Then a valve 1 is partly or wholly closed and a valve 3 is opened, valve 2 remaining open, to feed the suspension to the filter. Meanwhile a suspension of diatomaceous earth is being formed in a reservoir II, and after formation is continuously circulated through a pump 21 by withdrawal at 37 and re-introduction at 39. When the bed formed on the filter is complete, cocks 2 and 3 are closed and cock 1 opened appropriately. A valve 9 is provided to permit the pump 21 (which has'a constant output) to feed intermittently a proportion of diatomaceous earth slurry into the flow line at b. The valve 9 is operated electrically by a circuit 9a including a contact breaker 26. 'The contact breaker is operated in turn by an adjustable rotary cam 15, and the cam is adjusted to provide the desired ratio of valve-open period to valve-closed period. The cam motor is then switched on so that some suspension is fed intermittently from reservoir II to the flow line, the remaining portion of the pump output being returned to reservoir II via pipe 39 and valve 8 to keep the suspension stirred. When reservoir II is empty it is replaced by reservoir I which has meanwhile been replenished. Downstream of the filter is a pump (not shown). The pressure in the reservoirs is constrained to vary directly with the liquid pressure in the flow line by a valve 23 which feeds gas from a cylinder 22 to either reservoir as appropriate (through 42 or 43) and which is controlled by pipe 44 connected to the flow line.
GB18035/61A 1960-11-07 1961-05-17 Improvements in or relating to methods of filtering and filtering apparatus Expired GB908879A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR843183A FR1279345A (en) 1960-11-07 1960-11-07 Apparatus for the injection, in variable quantities, of diatoms into a filtration circuit

Publications (1)

Publication Number Publication Date
GB908879A true GB908879A (en) 1962-10-24

Family

ID=8742187

Family Applications (1)

Application Number Title Priority Date Filing Date
GB18035/61A Expired GB908879A (en) 1960-11-07 1961-05-17 Improvements in or relating to methods of filtering and filtering apparatus

Country Status (2)

Country Link
FR (1) FR1279345A (en)
GB (1) GB908879A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3289842A (en) * 1963-02-12 1966-12-06 Cascade Corp Feeding of slurry
US3421624A (en) * 1966-06-06 1969-01-14 Laval Turbine Timing apparatus for filtration system
GB2264882A (en) * 1992-03-10 1993-09-15 Achenbach Buschhuetten Gmbh A method and device for filtering liquids, especially rolling oil

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3348685A (en) * 1964-09-02 1967-10-24 Phillips Petroleum Co Filter apparatus and filter aid feeding and controlling system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3289842A (en) * 1963-02-12 1966-12-06 Cascade Corp Feeding of slurry
US3421624A (en) * 1966-06-06 1969-01-14 Laval Turbine Timing apparatus for filtration system
GB2264882A (en) * 1992-03-10 1993-09-15 Achenbach Buschhuetten Gmbh A method and device for filtering liquids, especially rolling oil
GB2264882B (en) * 1992-03-10 1996-01-17 Achenbach Buschhuetten Gmbh A device for filtering liquids, especially rolling oil

Also Published As

Publication number Publication date
FR1279345A (en) 1961-12-22

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