Process and apparatus for sampling gas-entrained particulate materials
This patent describes an apparatus for sampling a stream of gas-entrained particulate matter. It comprises a sample receiver; a sampling tube having an inlet exposed to the stream of gas-entrained particulate matter and extending to an outlet in the sample receiver; a source of pressurized gas; gas injection port between the inlet and outlet which introduces the pressurized gas into the sample tube and directs the gas toward the sample receiver, the introduction of the gas acting to decrease the gas pressure present at the inlet of the sampling tube to induce the particulate matter to be substantially continuously drawn into the tube and deposited into the receiver; means for adjusting the rate at which the particulate matter is drawn into the sampling tube; and vent means for venting gas introduced into the receiver while retaining the particulate matter in the receiver.
- Assignee:
- E.I. du Pont de Nemours and Co., Wilmington, DE (United States)
- Patent Number(s):
- US 5050440; A
- Application Number:
- PPN: US 7-564588
- OSTI ID:
- 5830394
- Resource Relation:
- Patent File Date: 29 Jun 1990
- Country of Publication:
- United States
- Language:
- English
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