丁香花五月路婷婷开心,热99re久久精品,亚洲人成网站在线播放,在线亚洲中文字幕36页 久久99青青精品免费观看|久久精品国产亚洲综合专区|中文字幕97超碰大香小说

The molten salt heating furnace can obtain a higher working temperature under a lower operating pressure, the heating temperature is stable, can be adjusted accurately, and the thermal efficiency is high.

Molten salt is a mixture of potassium nitrate (KNO3), sodium nitrite (NaNO2) and sodium nitrate (NaNO3). The heat carrier furnace heats the powdered molten salt to a melting point of 142°C or higher, so that it can be recycled in a molten state. The highest working temperature can reach 600℃.