METHOD OF DESIGNING GAS-SOLID SEPARATOR

摘要

A design method of a gas-solid separator that has: an inner cylinder 10 having a closed lower end 11 and an opened upper end 1, and extending in a vertical direction; an outer cylinder 2 that coaxially covers the inner cylinder 10 from the outside and has a gas vent port 6 formed on the upper end side of the inner cylinder and communicating with an exterior; and a plurality of axially extending long holes 4 formed on a side surface on the lower end 11 side of the inner cylinder 10 in a circumferential direction, one of long side edge parts of each of the long holes 4 being provided with a guide blade 5 that protrudes outward and is inclined circumferentially so as to cover the long hole 4, wherein the gas-solid separator is designed such that, when a cross-sectional average linear velocity of a mixture of gas and solid particles that falls through the inner cylinder is 3 to 30 m/s, the cross-sectional average linear velocity of the mixture of gas and solid particles that is discharged from the long holes is 20 m/s or lower, and a cross-sectional average linear velocity of the gas rising between the outer cylinder and the inner cylinder in a section where the long holes are formed is 6 m/s or lower.