Flue gas with high temperature in fire box or hot-wind furnace is discharged out by temperature adjusting mechanism so as to prevent the dry ashing of heat exchanger automatically in the invention.
本发明能自动将热风炉燃烧室的高温烟道气通过温度调 节机构旁路出去，防止换热器的干烧；
Dry and dry-wet combination method were used in ashing of grain samples.
谷物样品采用干法为主，干湿结合的办法灰化。
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