翻译高手来
Traveling Grate Traveling grate spreader stokers have been in existence since 1938 and are the most popular way to burn coal on stokers for boilers above 50,000 lbs of steam/hr (Figure 7). In addition to coal, traveling grate spreader stokers are burning a wide variety of waste fuels as discussed previously. Ash is discharged at the front of the grate for two reasons. First of all, if the ash pit were in the rear, the fuel would be thrown directly into the ash pit without burning or worse, causing an ash pit fire.
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