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1. GB2306896 - Filtration device

Office United Kingdom
Application Number 9623382
Application Date 11.11.1996
Publication Number 2306896
Publication Date 08.01.1997
Publication Kind B
IPC
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
D
SEPARATION
29
Filters with filtering elements stationary during filtration, e.g. pressure or suction filters, not covered by groups B01D24/-B01D27/170;   Filtering elements therefor
01
with flat filtering elements
03
self-supporting
B PERFORMING OPERATIONS; TRANSPORTING
01
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
D
SEPARATION
39
Filtering material for liquid or gaseous fluids
14
Other self-supporting filtering material
20
of inorganic material, e.g. asbestos paper or metallic filtering material of non-woven wires
B PERFORMING OPERATIONS; TRANSPORTING
22
CASTING; POWDER METALLURGY
D
CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
43
Mechanical cleaning, e.g. skimming of molten metals
B01D 29/03
B01D 39/20
B22D 43/00
CPC
B01D 39/2082
B01D 29/03
B22D 43/004
Applicants ENRIGHT PHILIP GRAHAM
N TEC LIMITED
Inventors ENRIGHT PHILIP GRAHAM
Priority Data 9523124 11.11.1995 GB
Title
(EN) Filtration device
Abstract
(EN)
A filtration device (10, fig 2) for filtering molten metal comprises a body defining a cavity (shown by crucible 12) for receiving molten metal, an outlet 19 for the molten metal from the body and a means 20 for holding a filter between the cavity and the outlet 19, characterised in that the body is comprised of a refractory fibrous material which may be ceramic such as alumino-silicate fibres. A fluid impermeable layer 32 may be added to the body proximate the outlet 19 to prevent gas leakage through the walls of the body which could otherwise adversely affect pressurising of the molten metal within the cavity. Details of a method of manufacture of such a cavity, rapid induction melting of a solid metal sample within the cavity and a filter element comprised of sintered granules such as alumina or zircona are also disclosed.

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