System for the sampling in an enclosure of solid particles in a

Details System for the sampling in an enclosure of solid particles in a System for the sampling in an enclosure of solid particles in a

1988-10-21

1989-08-08

Tokar, Michael J.

Measuring and testing

Sampler, sample handling, etc.

Withdrawing through conduit or receptacle wall

G10N 100

Patent

active

048541800

ABSTRACT:
The invention relates to a sampling method and apparatus for a fluidized bed of particles in an enclosure, comprising a sampling riser pipe (4) that communicates with the enclosure (1) below the upper surface of the fluidized bed and forms an extension thereof and has a restriction (5) adapted to limit the sampling flow rate, and means (14, 15) provided for injecting a compressed gas at an adjustable flow rate into the pipe (4) between the enclosure (1) and the restriction (5) with a view to controlling, by appropriate regulation of the flow rate of the gas, the quantity of particles withdrawn.

REFERENCES:
patent: 3786682 (1974-01-01), Winter et al.
patent: 3994824 (1976-11-01), White et al.
patent: 4009618 (1977-03-01), Chatham
patent: 4106210 (1978-08-01), Jukkola
patent: 4327055 (1982-04-01), Luckenbach et al.
patent: 4430300 (1984-02-01), Vickers
patent: 4682506 (1987-07-01), Wienck et al.
patent: 4708785 (1987-11-01), Myens

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