Support beam for easily polymerizeable substance treatment device and easily polymerizeable substance treatment device

1. A support beam in an easily polymerizeable substance treatment apparatus for supporting or reinforcing an internal provided in the easily polymerizeable substance treatment apparatus, comprising:

(1) an internal mounting portion to which the internal is attached, (2) a folded-back portion which is folded back so that at least part of the folded-back portion is inclined downward with respect to a horizontal direction, wherein

an angle α formed by the folded-back portion and the horizontal direction is 0°<α<90° and (3) a connecting portion attached at one end to the internal mounting portion and at the other end to the folded-back portion.

2. The support beam for an easily polymerizeable substance treatment apparatus according to claim 1 , wherein the easily polymerizeable substance is at least one substance selected from the group consisting of (meth)acrolein, (meth)acrylic acid and a (meth)acrylic acid ester.

3. The support beam for an easily polymerizeable substance treatment apparatus according to claim 1 , wherein the angle α is 10°≦α≦45°.

4. The support beam for an easily polymerizeable substance treatment apparatus according to claim 1 , wherein the support beam is stainless steel.

5. The support beam for an easily polymerizeable substance treatment apparatus according to claim 1 , wherein the folded back portion comprises (i) a horizontal portion attached to the connecting portion and (ii) an inclined portion attached to the horizontal portion, wherein

an angle α formed by the portion (i) and the portion (ii) is 0°<α<90°.

6. The support beam for an easily polymerizeable substance treatment apparatus according to claim 1 , wherein the folded back portion comprises an inner surface facing toward the internal mounting portion and an outer surface facing away from the internal mounting portion and the inner surface is parallel to the outer surface.

7. An easily polymerizeable substance treatment apparatus, comprising: an internal provided in the easily polymerizeable substance treatment apparatus, and a support beam that supports or reinforces the internal; the support beam comprising (1) an internal mounting portion to which the internal is attached, (2) a folded-back portion which is folded back so that at least part of the folded-back portion is inclined downward with respect to a horizontal direction,

wherein an angle α formed by the folded-back portion and the horizontal direction is 0°<α<90° and (3) a connecting portion attached at one end to the internal mounting portion and at the other end to the folded-back portion.

8. The easily polymerizeable substance treatment apparatus according to claim 7 , wherein the easily polymerizeable substance is at least one substance selected from the group consisting of (meth)acrolein, (meth)acrylic acid and a(meth)acrylic acid ester.

9. The easily polymerizeable substance treatment apparatus according to claim 7 , wherein the angle α is 10°≦α≦45°.

10. The easily polymerizeable substance treatment apparatus according to claim 7 , wherein the support beam is stainless steel.

11. The easily polymerizeable substance treatment apparatus according to claim 7 , wherein the treatment of the easily polymerizable substance is distillation or absorption.

12. The easily polymerizeable substance treatment apparatus according to claim 7 , wherein the folded back portion comprises (i) a horizontal portion attached to the connecting portion and (ii) an inclined portion attached to the horizontal portion, wherein

an angle α formed by the portion (i) and the portion (ii) is 0°<α<90°.

13. The easily polymerizeable substance treatment apparatus according to claim 7 , wherein the folded back portion comprises an inner surface facing toward the internal mounting portion and an outer surface facing away from the internal mounting portion and the inner surface is parallel to the outer surface.