GB1349603A - Creation of Inventions and Patents with Artificial Intelligence

GB1349603A – Methods of and apparatus for separating particulate material
– Google Patents

GB1349603A – Methods of and apparatus for separating particulate material
– Google Patents
Methods of and apparatus for separating particulate material

Info

Publication number
GB1349603A

GB1349603A

GB1349603DA
GB1349603A
GB 1349603 A
GB1349603 A
GB 1349603A

GB 1349603D A
GB1349603D A
GB 1349603DA
GB 1349603 A
GB1349603 A
GB 1349603A
Authority
GB
United Kingdom
Prior art keywords
outlet
container
surface layer
plate
particles
Prior art date
1971-12-31
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

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.)

Coal Industry Patents Ltd

Original Assignee
Coal Industry Patents 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.)
1971-12-31
Filing date
1971-12-31
Publication date
1974-04-10

1971-12-31
Application filed by Coal Industry Patents Ltd
filed
Critical
Coal Industry Patents Ltd

1974-04-10
Publication of GB1349603A
publication
Critical
patent/GB1349603A/en

Status
Expired
legal-status
Critical
Current

Links

Espacenet

Global Dossier

Discuss

Classifications

B—PERFORMING OPERATIONS; TRANSPORTING

B07—SEPARATING SOLIDS FROM SOLIDS; SORTING

B07B—SEPARATING SOLIDS FROM SOLIDS BY SIEVING, SCREENING, SIFTING OR BY USING GAS CURRENTS; SEPARATING BY OTHER DRY METHODS APPLICABLE TO BULK MATERIAL, e.g. LOOSE ARTICLES FIT TO BE HANDLED LIKE BULK MATERIAL

B07B13/00—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices

B—PERFORMING OPERATIONS; TRANSPORTING

B07—SEPARATING SOLIDS FROM SOLIDS; SORTING

B07B13/00—Grading or sorting solid materials by dry methods, not otherwise provided for; Sorting articles otherwise than by indirectly controlled devices

B07B13/003—Separation of articles by differences in their geometrical form or by difference in their physical properties, e.g. elasticity, compressibility, hardness

Abstract

1349603 Separating solids COAL INDUSTRY (PATENTS) Ltd 17 Oct 1972 [31 Dec 1971] 60945/71 Heading B2H In an apparatus, Fig. 1, for separating particulate material, e.g. damp, raw small coal, into oversize and undersize products, the material, e.g. from a bunker 8, is fed, e.g. by means of a conveyor 7, through an inlet 2 into an upper region of a container 1 and a surface layer of relatively coarse material moves down a path defined by the angle of repose of the particulate material in the container towards an overflow outlet 3 for the oversize product while relatively fine material is segregated from the surface layer and moves down the container towards an outlet 4 for the undersize product positioned adjacent to the base of the container. The outlet 3 is formed by a weir plate 10 extending across the width of the container and located below the level of a ledge 5 onto which the particulate material is dropped. A weir plate 6 is arranged across the container. An extraction conveyor 12 is located below the outlet 4. In operation, the particulate material builds up on the ledge 5 and forms its natural angle of repose. Consolidation of the material on the ledge prevents the relatively coarse heavy particles from penetrating into the material below the surface layer. As more material is fed through the inlet 2 it flows as a surface layer down a path defined by the angle of repose of the material and fills the container until it overflows through the outlet 3. The extraction conveyor 12 is then started and material is drawn through the outlet 4. Control means are provided for the conveyors 7 and 12 to ensure that an overflow condition exists and that the material moves slowly downwards towards the outlet 4. As the surface layer of material flows off the ledge 5 down the path defined by the angle of repose of the material the particles in the surface layer tend to be segregated into an upper band of coarse particles, a lower band of fine particles and an intermediate band of both particles. The lower band of particles tend to merge with the material beneath the surface layer and move down toward the outlet 4. The upper and intermediate bands continue to flow down the path until they reach the weir plate 6 where they tend to be intermixed as they flow over the plate 6 allowing the coarser particles in the intermediate band to pass into the upper band and to continue to flow along the path to be discharged over the plate 10 through the outlet 3. The fine particles which have passed over the weir plate 6 tend to merge with the material in the container and flow towards the outlet 4. In modification, the weir plates 6 and 10 may be adjustable; the plate 6 may be dispensed with; a plurality of plates similar to plate 6 may be provided; a scraper conveyor may be provided intermediate the ledge 5 and the outlet 3 to urge sticky material in the surface layer to flow towards the outlet 3; the container I may be vibrated. In another embodiment, Fig. 3 (not shown), the particulate material is fed through a central inlet and via an adjustable distributor towards each side of the container. The feed impacts on to a central cross plate and the surface layer flows towards an intermediate weir plate and an overflow outlet for the oversize product provided on each side of the container. In a further embodiment, Fig. 5, the material fed via inlet 22 passes through a rotary mixer 25 which breaks up agglomerates and falls on a circular plate 26 which may be rotatable. A rotary distributing disc is provided at 27, and a circular weir plate at 28. The container 21, which may be vibrated, is conical and has a circular overflow outlet 23 for the oversize product and a central outlet 24 for the undersize product.

GB1349603D
1971-12-31
1971-12-31
Methods of and apparatus for separating particulate material

Expired

GB1349603A
(en)

Applications Claiming Priority (1)

Application Number
Priority Date
Filing Date
Title

GB6094571

1971-12-31

Publications (1)

Publication Number
Publication Date

GB1349603A
true

GB1349603A
(en)

1974-04-10

Family
ID=10486354
Family Applications (1)

Application Number
Title
Priority Date
Filing Date

GB1349603D
Expired

GB1349603A
(en)

1971-12-31
1971-12-31
Methods of and apparatus for separating particulate material

Country Status (1)

Country
Link

GB
(1)

GB1349603A
(en)

Cited By (1)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

CN108686956A
(en)

2018-05-16
2018-10-23
华东理工大学
A kind of powder granule sorting unit and method for separating

1971

1971-12-31
GB
GB1349603D
patent/GB1349603A/en
not_active
Expired

Cited By (1)

* Cited by examiner, † Cited by third party

Publication number
Priority date
Publication date
Assignee
Title

CN108686956A
(en)

2018-05-16
2018-10-23
华东理工大学
A kind of powder granule sorting unit and method for separating

Contact information