Medium and low coal temperature separate dry distillation system and method
A dry distillation and low temperature technology, applied in the field of coal pyrolysis dry distillation, can solve the problems of low normal pressure or slightly positive pressure of the calorific value of waste gas, difficult to improve the heating efficiency of external heat, collection of pyrolysis products, etc., and achieve high efficiency and rapid dehydration. Effect
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[0061] As the second preferred embodiment of the present invention, the medium and low temperature coal temperature fractional carbonization system, as attached image 3 with 4 shown in the above appended figure 2On the basis of the medium-low temperature external heating type screw pusher retort device 100 and the low temperature internal heating type rotary kiln retort device 200 in the first preferred embodiment shown, it further includes a medium temperature internal heat type rotary kiln retort device 300 , the medium temperature internal heat type rotary kiln retort device 300 The kiln retort device 300 is connected to the medium and low temperature external heating type screw pusher retort device 100, the composition structure and working of the medium and low temperature external heat type screw retort device 100 and the low temperature internal heat type rotary kiln retort device 200 in the second preferred embodiment process and attached figure 2 The first prefer...
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