Measuring and testing – Liquid analysis or analysis of the suspension of solids in a... – Sampler – constituent separation – sample handling – or sample...
Patent
1996-01-23
1997-06-24
Brock, Michael
Measuring and testing
Liquid analysis or analysis of the suspension of solids in a...
Sampler, constituent separation, sample handling, or sample...
7386323, 7386324, 7386384, 7386481, G01N 110
Patent
active
056418949
ABSTRACT:
A sampling cylinder 3 is attached to a process piping 2 through which a slurry flows. A front piston 9 and a rear piston 10 which slide within the sampling cylinder 3 are driven via a driving rod 12 by a fluid pressure cylinder 11. These two pistons 9,10 are allowed to slide to collect the slurry into a sampling space 30 defined between the pistons 9,10. The front piston 9 is brought closer to the rear piston 10 to reduce the volume of the sampling space 30. Thus, only the filtrate in the slurry is fed through a filter 5 into a filtrate collecting tank 6, where pH etc. of the filtrate is measured by a sensor 8. Subsequently, the front piston 9 is brought apart from the rear piston 10 to increase the volume of the sampling space 30. Thus, the filtrate is returned into the sampling space 30 back-washing the filter 5. Then, the slurry in the sampling space 30 is returned to the process piping 2.
REFERENCES:
patent: 4262533 (1981-04-01), Jaeger
patent: 4269064 (1981-05-01), Johnson et al.
patent: 4630479 (1986-12-01), Wagener et al.
Copy of Article in Japanese for the product "Samplex" of Kawani Co. Ltd. with English summary, no date.
Bednarek Michael D.
Brock Michael
Koei Industry Co. Ltd.
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