The feeding device transformation scheme and the result of type of DGC1147/180 briquetting machine was introduced during its production commissioning process.

A kind of technical renovation for coal feeders of two chain-grate boilers at rated evaporation of 35t/h was introduced,the advantages after the coal feeders renovated were analyzed and some matters that need attention were discussed.

The coal feeder of chain-grate boiler with evaporation capacity of 35t/h had been reformed.

With the compare of the usage of non-mechanical p n eumatic coal feeder and traditional mechanical coal feeder on the CFB boiler,th e paper mainly introduces the pneumatic feeder,its principle and structure spec ialty; and shows the advantages of the pneumatic feeder on large CFB boiler pro ject with the data of boiler performance test.

Transformation of feeding equipment for LB-30 asphalt concrete mixing plant;