| 摘要 |
PURPOSE: A pulverizer equipped with an orifice structure including a ceramic lining is provided to prevent the damage and the deterioration of the orifice structure by applying a ceramic lining with optimized thermal stability and anti-abrasion characteristic to the orifice structure. CONSTITUTION: Bituminous coal is dropped in a hopper(110). The hopper is formed in a frame(120). A rotary plate(130) is formed at the lower side of the frame and receives the dropping bituminous coal. A miller(140) is formed on the upper side of the rotary plate and pulverizes the bituminous coal to form pulverized coal. A supplying pipe(150) is formed on the upper side of the frame and supplies the pulverized coal to a boiler. A blower is formed at the lower side of the rotary plate and blows the pulverized coal to the supplying pipe. An orifice structure(160) is formed at the inside of the supplying pipe and accelerates the pulverized coal to the boiler. The orifice structure includes a housing and a ceramic lining.
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