Pipe part for conveying a solid particulate material

摘要

A pipe part (100) for conveying a solid particulate material, comprising an outer tubular element (1) stretching along a longitudinal axis (A) and having first (9) and second (12) sections axially displaced from each other. An inner tubular element (20) is disposable inside the outer tubular element (1) and adapted for longitudinally conveying the solid particulate material from one end to another end. The inner tubular element (20) comprises an aeration-fluid-permeable wall part (23), and is sealingly connected with—and flexibly supported by—the first and second sections (9,12) to form an aeration fluid distribution chamber (40) between the first and second sections (9,12) and the inner (20) and outer (1) tubular elements. The aeration fluid distribution chamber (40) is provided with an aeration fluid inlet (15) to define an aeration fluid flow path (19) between the aeration fluid inlet (15) through the aeration-fluid-permeable wall part (23) via the aeration fluid distribution chamber (40).

主权项

1. A pipe part for conveying a solid particulate material at high pressure, the pipe part at least comprising:
an outer tubular element stretching along a longitudinal axis (A) and having a first section and a second section being axially displaced from each other; an inner tubular element disposed inside the outer tubular element and adapted for conveying the solid particulate material from one end to another end wherein the entire inner tubular element is permeable to pressurized aeration fluid and impermeable to the solid particulate material; wherein the inner tubular element is sealingly connected with the first and second sections by a flexible support to form an aeration fluid distribution chamber between the first and second sections and the inner and outer tubular elements, which aeration fluid distribution chamber is provided with an aeration fluid inlet to define an aeration fluid flow path between the aeration fluid inlet through the inner tubular element via the aeration fluid distribution chamber; and wherein the flexible support comprises a first sealing ring fixed to the inner tubular element and to the first section of the outer tubular element by a first sealing O-ring and a second sealing ring fixed to the inner tubular element and to the second section of the outer tubular element by a second sealing O-ring.