Sleeve-type coal material decomposition apparatus

A sleeve-type coal material decomposition apparatus including:

• a kiln body having an inner wall, a first end, and a second end;
• a coal inlet disposed at the first end of the kiln body;
• a coal outlet and a decomposition gas outlet disposed at the second end of the kiln body;
• a plurality of heating chambers formed of heat conduction material and disposed inside the kiln body in layers centered on the axis of the kiln body such that first ends of the plurality of heating chambers are disposed at the first end of the kiln body and second ends of the plurality of heating chambers are disposed at the second end of the kiln body;
• and
• a plurality of coal material passages respectively disposed between the plurality of heating chambers, first ends of the plurality of coal material passages being connected to the coal inlet and second ends of the plurality of coal material passages being connected to the coal outlet and the decomposition gas outlet,
• wherein at least two heating chambers and at least two coal material passages are disposed inside the kiln body, and a gap is disposed between an outermost heating chamber of the plurality of heating chambers and the inner wall of kiln body.