Gas separation – Means within gas stream for conducting concentrate to collector
Patent
1991-09-12
1993-01-12
Nozick, Bernard
Gas separation
Means within gas stream for conducting concentrate to collector
55302, 553411, B01D 4604
Patent
active
051786524
ABSTRACT:
In a fluidized bed apparatus a process gas flows through a process chamber (46) and subsequently through a filter group, including a total number of at least two filter cartridges (50), while a respective part of the number of filter cartridges (50) is blocked, in rotation, to the gas flow coming from the process chamber (46) and is passed instead in opposite direction by a purging gas. An overall quantity of process gas exceeding the gas demand in the process chamber (46) at the ratio of the partial number mentioned to the total number of filter cartridges (50) is supplied to the apparatus. The exceeding partial amount of process gas is branched off in the apparatus ahead of the process chamber (46), passed as purging gas through the partial number mentioned of filter cartridges (50), and subsequently discharged through the remaining number of filter cartridges (50) together with the residual quantity of process gas coming from the process chamber (46). In this manner dust can be removed from the process gas at low expenditure for energy and with little noise.
REFERENCES:
patent: 3473300 (1969-10-01), Wilm et al.
patent: 4587744 (1986-05-01), Huttlin
patent: 4685809 (1987-08-01), Huttlin
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