Homogenizer/subsampler for tar sand process streams

Details Homogenizer/subsampler for tar sand process streams Homogenizer/subsampler for tar sand process streams

1981-04-02

1982-05-11

Swisher, S. Clement

Measuring and testing

Sampler, sample handling, etc.

Withdrawing through conduit or receptacle wall

366140, G01N 120

Patent

active

043287107

ABSTRACT:
An apparatus and process are described for homogenizing and subsampling process streams such as those present in the hot water extraction process for recovery of bitumen from tar sand. Such streams contain widely variable proportions of heavy oil, water, and solids. To obtain a representative analysis-size subsample from such a stream, a bulk sample is taken into a cylindrical open-topped vessel containing a coaxial cylindrical draft tube spaced from the internal wall of the vessel. A head element closes and seals the top of the vessel. An impellor extending into the draft tube through the head element is actuated to circulate the bulk sample along an elliptical flow path within the vessel. The vessel contents are maintained in a pressurized condition by the introduction of inert gas. A subsample is taken by mechanically opening and closing a sample port extending through the side wall of the vessel and communicating with the flow path; the subsample is thus taken while the bulk sample is in motion and the components of the mixture are in a homogenized condition.

REFERENCES:
patent: 1351352 (1920-08-01), Stevens
patent: 2038221 (1936-04-01), Kagi
patent: 2843169 (1958-07-01), Stein
patent: 3106096 (1963-10-01), Broerman
patent: 3189080 (1965-06-01), Overcashier
patent: 3460811 (1969-08-01), Hugli
patent: 4132666 (1979-01-01), Chikatsu
Strahman Sampling Valve, Fig. SV-700, (An Advertizing Brochure) Nicolet Ave. Florham Park, N.J. 2 pages.

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