GB612075A - Improvements in and relating to the washing of minerals and ores - Google Patents

Improvements in and relating to the washing of minerals and ores

Info

Publication number
GB612075A
GB612075A GB1925246A GB1925246A GB612075A GB 612075 A GB612075 A GB 612075A GB 1925246 A GB1925246 A GB 1925246A GB 1925246 A GB1925246 A GB 1925246A GB 612075 A GB612075 A GB 612075A
Authority
GB
United Kingdom
Prior art keywords
slurry
washing
trough
washed
tank
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
GB1925246A
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.)
Imperial Chemical Industries Ltd
Original Assignee
Imperial Chemical Industries Ltd
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 Imperial Chemical Industries Ltd filed Critical Imperial Chemical Industries Ltd
Priority to GB1925246A priority Critical patent/GB612075A/en
Publication of GB612075A publication Critical patent/GB612075A/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B03SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
    • B03BSEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS
    • B03B5/00Washing granular, powdered or lumpy materials; Wet separating
    • B03B5/48Washing granular, powdered or lumpy materials; Wet separating by mechanical classifiers
    • B03B5/54Drag classifiers

Landscapes

  • Separation Of Solids By Using Liquids Or Pneumatic Power (AREA)

Abstract

612,075. Washing granular materials. RATCLIFFE, A., TALBOT, G. W., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. June 27, 1946, No. 19252. [Class 82(ii)] In a process for washing minerals &c., particularly limestone, to free them from earthy material e.g. clay, a slurry of water and the earthy material is used containing substantially the maximum concentration of suspended solids permitting the slurry to be readily handled as a fluid, said slurry being circulated in a closed circuit through the washer and maintained at the said concentration by withdrawing a small amount from the circuit to waste and feeding in a small amount of water which has been used to wash the minerals &c., already treated with the slurry. For washing limestone the ratio of water to suspended solids in the slurry is substantially 2:1 by weight. In the arrangement described, crushed and screened ore, preferably after treatment for removal of the larger pieces of earthy matter (e.g. in a drum separator), is fed via a shoot 2 into a washing trough 3 which is subjected to vibratory or gyratory motion; where it is washed with slurry from the perforated pipe 4. The slurry carries earthy material through the perforated base of the trough 3 into tank 5. The washed mineral moves along the trough 3, is discharged into a second trough 7 where it is washed free of slurry by clean water issuing from the perforated pipe 8 the washed off slurry entering tank 5, and is finally discharged on to a conveyer 10. In the tank 5 the larger particles of solid matter together with mineral fines settle and are removed by the scraper conveyer 11 and discharged to waste at 12, the supernatant slurry overflowing a sill 13 whence it is pumped up to the pipe 4, whilst a small amount of the heavy slurry is discharged to waste by the pump 16, the rates of said discharge and of addition of clean water being adjusted to maintain the required fluidity of the slurry. Alternatively the slurry from the washer may pass through a fine screen, for example in the form of a band conveyer, which retains the larger particles and thence into the tank 5. Specification 581,610 is referred to.
GB1925246A 1946-06-27 1946-06-27 Improvements in and relating to the washing of minerals and ores Expired GB612075A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1925246A GB612075A (en) 1946-06-27 1946-06-27 Improvements in and relating to the washing of minerals and ores

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1925246A GB612075A (en) 1946-06-27 1946-06-27 Improvements in and relating to the washing of minerals and ores

Publications (1)

Publication Number Publication Date
GB612075A true GB612075A (en) 1948-11-08

Family

ID=10126266

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1925246A Expired GB612075A (en) 1946-06-27 1946-06-27 Improvements in and relating to the washing of minerals and ores

Country Status (1)

Country Link
GB (1) GB612075A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2801003A (en) * 1952-01-16 1957-07-30 Robert P Morrison Method and apparatus for recovering valuable minerals
US5110454A (en) * 1988-01-19 1992-05-05 Recovery Systems Technology, Inc. Apparatus for reclaiming gravel, soil particles and wood pieces from a mixture of the same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2801003A (en) * 1952-01-16 1957-07-30 Robert P Morrison Method and apparatus for recovering valuable minerals
US5110454A (en) * 1988-01-19 1992-05-05 Recovery Systems Technology, Inc. Apparatus for reclaiming gravel, soil particles and wood pieces from a mixture of the same

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