WE CLAIM:
1. A combustion burner comprising:
a fuel nozzle that is able to blow a fuel gas obtained by mixing solid fuel with air;
a secondary air nozzle that is able to blow air from the outside of the fuel nozzle;
a flame stabilizer that is provided at a front end portion of the fuel nozzle so as to be near an axis center side of the fuel nozzle; and
a rectification member that is provided between an inner wall surface of the fuel nozzle and the flame stabilizer.
2. The combustion burner according to claim 1,
wherein the rectification member is disposed so as to
have a predetermined gap with respect to the flame stabilizer.
3. The combustion burner according to claim 1 or 2,
wherein the rectification member is provided so that a
distance between the rectification member and the flame stabilizer is substantially uniform in the fuel gas flowing direction.
4. The combustion burner according to any one of claims 1
to 3,
wherein a widened portion is provided at the downstream side of the flame stabilizer in the fuel gas flowing direction and a tapered portion is provided at the downstream side of the rectification member in the fuel gas flowing direction.
5. The combustion burner according to any one of claims 1

to 3,
wherein a widened portion is provided at the downstream side of the flame stabilizer in the fuel gas flowing direction, and the rectification member is provided at a position where the rectification member does not face the widened portion.
6. The combustion burner according to claim 2,
wherein the rectification member is provided along the inner wall surface of the fuel nozzle.
7. The combustion burner according to any one of claims 1
to 6,
wherein the flame stabilizer is formed in a structure in which a first flame stabilizing member disposed in the horizontal direction and a second flame stabilizing member disposed in the vertical direction are disposed so as to intersect each other.
8. The combustion burner according to claim 7,
wherein the first flame stabilizing member and the
second flame stabilizing member respectively include a plurality of flame stabilizing members, a plurality of the first flame stabilizing members are disposed in the vertical direction with a predetermined gap therebetween, a plurality of the second flame stabilizing members are disposed in the horizontal direction with a predetermined gap therebetween, and the plurality of first flame stabilizing members and the plurality of second flame stabilizing members are disposed so as to intersect each other.
9. The combustion burner according to claim 7 or 8,

wherein in any one of the first flame stabilizing member and the second flame stabilizing member, one side width is set to be larger than the other side width.
10. A combustion burner comprising:
a fuel nozzle that is able to blow a fuel gas obtained by mixing solid fuel with air;
a secondary air nozzle that is able to blow air from the outside of the fuel nozzle;
a flame stabilizer that is provided at a front end portion of the fuel nozzle so as to be near an axis center side of the fuel nozzle; and
a guide member that guides the fuel gas flowing through the fuel nozzle toward the axis center side of the fuel nozzle.
11. The combustion burner according to claim 10,
wherein the guide member guides the fuel gas in a
direction in which the fuel gas is separated from the secondary air blown from the secondary air nozzle.
12. The combustion burner according to claim 10 or 11,
wherein the guide member is disposed along an inner
wall surface of the fuel nozzle.
13. The combustion burner according to claim 10,
wherein the guide member is disposed at the front end
portion of the fuel nozzle so as to face the flame stabilizer.
14. The combustion burner according to claim 10 or 11,
wherein the guide member is disposed at a position
where the guide member faces the inner wall surface of the

fuel nozzle in the flame stabilizer.
15. The combustion burner according to claim 10 or 11,
wherein the guide member is disposed at the upstream
side of the flame stabilizer in the fuel gas flowing direction.
16. The combustion burner according to claim 10 or 11,
wherein the flame stabilizer is formed in a structure
in which two first flame stabilizing members provided in the horizontal direction while being parallel to each other in the vertical direction with a predetermined gap therebetween and two second flame stabilizing members provided in the vertical direction while being parallel to each other in the horizontal direction with a predetermined gap therebetween are disposed so as to intersect one another, and the guide member is disposed at the outside of the intersection position of the first flame stabilizing members and the second flame stabilizing members.
17. The combustion burner according to any one of claims
10 to 16,
wherein the flame stabilizer includes a widened portion formed at the downstream side in the fuel gas flowing direction, and the guide member is disposed so as to face the widened portion.
18. The combustion burner according to claim 10 or 11,
wherein the guide member includes two flame
stabilizing members that are provided in the horizontal direction while being parallel to each other in the vertical direction with a predetermined gap therebetween, and the guide member is provided so that the front end

portions of the flame stabilizing members face the axis center side of the fuel nozzle.