对冲天炉风圈、加料漏斗的技术改进，使冲天炉的故障率明显降低，维修费也大大下降，很好地保证了熔炼工序的顺利进行。

The blast ring and charging hopper of a cupola was modified. As a result, the break down rate and maintenance cost was obviously decreased, and the melting process became more smooth.

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分析了鼓风炉加料装置的工况条件及存在的问题，对加料装置的下部漏斗及结合面等进行改造，延长了其使用寿命。

After analysis of operating conditions and problems in the feeder of imperial smelting furnace, the lower hopper and faying face of the feeder has been modified, thus extending its service life.

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一般而言，加料斗是指用于传输物品的漏斗形状的装置。

In general, a funnel-shaped device used to transfer products.

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