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240T/H High Temperature Separating Circulating Fluidized Bed Boiler

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The boiler consists of a membrane walled combustion chamber, 2 sets of steel plate type cyclone separator and a rear part vertical shaft wrapped with air-cooled wrapping wall.

Inside the combustion chamber, panel type heating surface, 4 pieces of pipe panels for panel type super-heater and 3 pieces of water-cooled evaporating panels are provided.Circulating Fluidized Bed Boiler

The boiler is provided with a total of 4 sets of coal-feeding devices and 2 preformed limestone-feeding ports. All the coal-feeding device and limestone-feeding port are situated at the front part of the boiler, and are evenly arranged in cross direction on the tapered section at the lower part of the water-cooled wall of the front part wall.

The bottom part of the combustion chamber is a water-cooled air chamber made of water screen tube. Air conduit igniters are arranged behind the water-cooled air chamber. There are 2 sets of air conduit igniters, and in each, one high capacity ignition oil burner is provided. At 2 sides of the combustion chamber, 2 sets of air and water-cooling mode optional fly provided. 2sets of cyclone separators are arranged between the combustion chamber and the rear part vertical shaft, and the lower part of each separator, one set of “J” type valve feed back device is provided.

In the rear part vertical shaft, light and low temperature super-heaters, coal economizer and horizontal type air pre-heater are provided from top to bottom successively.

In the super-heater system, 2-stage direct-contact desuperheater is provided.

The whole body of the boiler is arranged symmetrically at the left and right side, suspended on the steel frame of the boiler, which is a space frame with subposts at the both sides.

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