Application of New High-efficiency Dust Removal Large Baffle Waste Heat Boiler in Waste Heat Recovery of Flue Gas With High Dust Mud Content
In the process of boiler development,how to reduce the exhaust temperature of high dust and sludge flue gas and carry out waste heat recovery is a difficult problem.Because of the energy shortage,the waste heat recovery of flue gas in the metallurgical and petroleum industry has always been the top priority of energy conservation and emission reduction in China.The fine suspended metal compounds in the flue gas not only cause erosion to the equipment and reduce the working efficiency,but also cause pollution to the environment.In view of the flow of small particles in flue gas and the low efficiency of the boiler,the analysis method was adopted to find the key points of the low efficiency of the boiler and take measures.The study found that the dust and sludge in the flue gas adhered to the pipe and affected the heat transfer efficiency was the main problem that caused the overall efficiency of the boiler to be low.In order to settle the dust and sludge in the boiler,staggered baffles were installed and combined with the pulse dust removal device to produce the better effect.The reciprocating flow of the flue gas through the baffles enhanced the turbulence effect,which was more effective in settling the dust and sludge,and was more conducive to the recovery of waste heat from the flue gas.The installed baffle settled a large amount of dust and mud,also enhanced the heat transfer.The use of pulse device could effectively improve the thermal efficiency of the boiler.
Heat energy recovery and utilizationUltrasonic descalingNew-style boiler
NETL
NSTL
万方数据
