| 摘要 |
<p>Cooling plates for electric ore furnaces are produced from, possibly rectangular, flat blanks, with coolant channels drilled through them. Ends of pairs of adjacent channels are interconnected, and closed off by covers welded to the edges of the plates. Connecting cavities may be formed in the edges of the plates, or in the covers, or partly in both, to produce a continuous flow path through all the drilled holes in a plate. The plates may subsequently be arched to fit closely to the sidewalls of the dome of the furnace. Coolant inlet and exit connections are made with the back of the plates. Cooling panels currently in use comprise banks of tubes, joined at the ends by a large number of separately welded elbows. It is difficult to ensure sound joints, and they are easy to damage. The arrangement described is robust, and requires much less welding. As well as being easier to make sound it is less costly to produce.</p> |
