Shielding shoe for walking beam furnaces

A shielding shoe (1a) for covering an opening in a bottom of a walking beam furnace, the shielding shoe having an upper side and a lower side, comprising:

• a shielding jacket (8a) having a semi-circular recess (9a) configured to be taken up by a vertical support (5a) of the walking beam furnace, wherein
• the shielding shoe (1a) is formed from refractory cast concrete or refractory rammed concrete,
• the shielding shoe (1a) has a honeycomb-like structure (7a) below the shielding jacket (8a) toward the lower side,
• the shielding jacket (8a) has a constant thickness (X) above the honeycomb-like structure (7a),
• the honeycomb-like structure (7a) has a uniform wall thickness (Y),
• the shielding shoe (1a) has curved slots (10a) in an area of the recess (9a) configured to allow the shielding shoe (1a) to be suspended on holding clamps (2a) fastened to the vertical support (5a), and
• the shielding shoe (1a) has at least one block hole (3a) on its upper side.

A walking beam furnace having at least one support (5a) projecting upward through an opening, comprising a pair of shielding shoes (1a), each shielding shoe (1a) of the pair of shielding shoes having an upper side and a lower side, and comprising:

• a shielding jacket (8a) having a semi-circular recess (9a) configured to be taken up by a vertical support (5a) of the walking beam furnace, wherein
• each shielding shoe (1a) of the pair of shielding shoes is formed from refractory cast concrete or refractory rammed concrete,
• each shielding shoe (1a) of the pair of shielding shoes has a honeycomb-like structure (7a) below the shielding jacket (8a) toward the lower side attached to the support (5a), and
• each shielding shoe (1a) of the pair of shielding shoes is attached to the support (5a).