Patent ID: 8083824

Claim:
A gas-solid separator, comprising: an inner cylinder having a closed lower end and an opened upper end, and extending in a vertical direction; and an outer cylinder that coaxially covers the inner cylinder from the outside and has a gas vent port formed on the upper end side and communicating with an exterior, wherein a plurality of axially extending long holes are formed on a side surface on the lower end side of the inner cylinder in a circumferential direction, one of long side edge parts of each of the long holes is provided with a guide blade that protrudes outward and is inclined circumferentially so as to cover the long hole, and in a section of the outer cylinder that surrounds the plurality of long holes of the inner cylinder, an inner diameter D 1 of a lower part of the outer cylinder is larger than an inner diameter D 2 of an upper part of the outer cylinder, and an outer diameter D 3 of a part forming the plurality of long holes in the inner cylinder is constant.