A hydrogen generation furnace using decomposition of biomass steam, comprising a double-walled furnace body, wherein an opening from which water enters and exits is provided at a lower part of the double-walled furnace body;
- a steam outlet is provided at a top of the double-walled furnace body;
- a grid-shaped pipe has a spaced interior and is provided along a circumference of an inner wall of the double-walled furnace body;
- the grid-shaped pipe is communicated with the double-walled furnace body to accommodate water;
- an infrared radiation grid layer is embedded between the grid-shaped pipe and the inner wall of the double-walled furnace body;
- a steam separation-drying device is cylindrical and double-walled and is provided in a middle of an upper part of an interior of the double-walled furnace body;
- a steam outlet is provided at a top of the steam separation-drying device;
- a steam inlet and a residual water outlet are provided at a lower part of the steam separation-drying device;
- a cylindrical infrared radiation grid layer is provided along a circumference of an inner wall of the steam separation-drying device;
- an infrared combustion radiation grid layer is provided at a lower part of an interior of the steam separation-drying device;
- a cavity of the steam separation-drying device forms a secondary gasifier;
- a gas outlet is provided in a middle of a top of the secondary gasifier;
- a ceramic lattice plate is provided at a bottom of the interior of the double-walled furnace body and has a pyramid in a middle of the ceramic lattice plate;
- a first gasifying agent inlet pipe is provided under the pyramid of the ceramic lattice plate;
- a lighter is provided above a vertex of the pyramid;
- a tubular barrier is provided above the pyramid and is communicated with the grid-shaped pipe to accommodate water;
- a ceramic lattice combustion grate is provided along a circumference of an inner side of the tubular barrier;
- a first pipeline is provided at un upper part of the double-walled furnace body to connect the steam outlet of the double-walled furnace body and extends to the lower part of the steam separation-drying device;
- steam is heated, atomized and separated in the steam separation-drying device;
- residual water sinks into the lower part of the double-walled furnace body through a second pipeline to join water in the double-walled furnace body;
- the separated steam with increased level of atomization passes through the interior of the double-walled furnace body through a third pipeline;
- a steam distributor is provided at a tail end of the third pipeline that projects from an outer wall of the lower part of the double-walled furnace body;
- a fourth pipeline is provided at the upper part of the interior of the double-walled furnace body to connect a gas outlet which is provided between the inner wall of the double-walled furnace body and an outer wall of the steam separation-drying device, and a separator is provided at a lower end of the fourth pipeline;
- a tar and dust discharge pipe is provided at a lower end of the separator;
- a purified gas separation pipe is provided at a side of the separator and extends to a bottom of the steam separation-drying device.