coal fired boilers for sale SZL Double Drums Horizontal Chai

SZL packaged water-tube hot water boiler is the double-cylinder, water-tube assembly, chain grate boiler. Two cylinders

are laid at the upper and lower level of boiler longitudinally along the center. Front section of the upper cylinder and

water-cooled tubes at side walls form the radiation-heating area in the hearth. While the rear section and tube bank in the

lower cylinder serve as convection-heating area, the coal economizer is mounted at the rear of boiler. Some heat of hot

combustion fume is absorbed by the hearth, then hot combustion heat flows to the convection heating area through cooling

chamber and exhausts outside through the chimney via coal economizer, dust collector and draught fan.
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coal fired boilers for sale SZL Double Drums Horizontal Chai