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US 2024/0288341 A1Published application
Filtrate sampling device
AssigneeValmet Automation Oy
InventorsPasi KÄRKI, Jesse JANSA
Life of this patent
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Abstract
A novel filtrate sampling device for collecting a filtrate sample from a pulp solution. The filtrate sampling device includes: a jacket, a piston rod including a first end and second end, the piston rod being arranged inside the said jacket in the longitudinal direction of the jacket, and a hole screen arranged on the piston rod. The hole screen includes a number of holes in the piston rod.
Claims7
1-6. (canceled)
A filtrate sampling device for collecting a filtrate sample from a pulp solution, the filtrate sampling device comprising:
- a jacket,
- a hollow piston rod comprising a first end and a second end, the piston rod being arranged inside the said jacket in the longitudinal direction of the jacket, and arranged to reciprocate inside the jacket in the longitudinal direction of the jacket, and
- a hole screen arranged into the piston rod,
- wherein in the filtrate sampling device the hole screen comprises a number of holes, and
- there is a narrow clearance between the jacket and the hole screen and the end edge of the jacket is arranged to clean the hole screen as the piston rod moves into the jacket
- wherein,
- the filtrate sampling device is equipped with backflush equipment comprising empty space between the inner wall of the jacket and the piston rod, an opening in the piston rod providing path to the empty space and a protrusion around the piston rod effectively creating a piston affecting the volume of the empty space.
4 more elements
(canceled)
Dependencies are inferred from the claim text.