Spiral coal feeder for fluidized bed vaporizer

2019-09-01View Original

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We use a fluidized-bed system with pure oxygen for gas production. The furnace operates well, but the impeller of the screw coal feeder needs to be replaced every six months due to severe wear. Could anyone among you recommend a suitable material, or an improved method for feeding coal? The furnace operates at a pressure of around 15 KPa under positive pressure

Reply #22019-09-02

It’s recommended to replace it once a year on average; it needs to be resistant to high temperatures and wear

Reply #32019-09-02

ZG30Cr26Ni14Si2Re

Reply #42019-09-03

You can go to China Coal Mengda for an investigation and see how the blades in their BGL system have been modified

Reply #52019-09-05

Is it because the spiral design is too small, causing it to rotate too quickly?

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Spiral coal feeder for fluidized bed vaporizer

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