Conclusions
The physical properties of worked carbon blocks correspond to the technical conditions for carbon blocks before their operation.
Tests and investigations made show the advantages of widely using carbon-block linings in blast-furnace runners.
It is necessary to develop a special design for runners with block linings which will ensure reliable fitting of the blocks, since the existing design of runners does not do away with the danger of floating.
Iron runners should be lined with large blocks and the joints filled with carbon paste.
After each iron tapping it is necessary to apply a protective coating of grog-clay or clay paste to the block lining by mechanical means with the aim of reducing the oxidation of the blocks when they react with atmospheric oxygen.
Restorative repairs of the lining of the runners should be done by applying grog-carbon or purely carbon bodies to the repaired place.
Production of carbon blocks for lining blast-furnace runners should be organized in plant conditions.
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