Water-gas reaction device employing pyrolysis gasification of coal gangue

The utility model discloses a continuous coal gangue pyrolysis and gasification furnace. The continuous coal gangue pyrolysis and gasification furnace comprises a furnace body, an in-furnace stock bin, a coal gangue pyrolysis and gasification device, a raw coke oven gas leading-out device, a hinging cage sealed material discharging device and a product stock bin, wherein the coal gangue pyrolysis and gasification device comprises a coal gangue pyrolysis device and a water gas reaction device; the coal gangue pyrolysis device comprises a pyrolysis and gasification chamber, an outer fuel gas heating device and an inner fuel gas heating device; the water gas reaction device comprises a pyrolysis and gasification chamber, a material temperature-reducing device and a steam generation device, wherein the material temperature-reducing device comprises a high-temperature temperature-reducing chamber, a low-temperature temperature-reducing chamber and a temperature-reducing chamber bridge arch; the steam generation device comprises an annular hollow metal box body, a steam pocket, a steam pocket input pipe and a steam pocket output pipe; the raw coke oven gas leading-out device comprises a raw coke oven gas concentration chamber, an inner leading-out channel, an outer leading-out channel, a main leading-out channel and a leading-out annular channel; the in-furnace stock bin is arranged at the top of the furnace body; the hinging cage sealed material discharging device is arranged at the bottom of the steam generation device; the product stock bin is arranged at the bottom of the furnace body and is connected with the hinging cage sealed material discharging device.

Continuous coal gangue pyrolysis and gasification furnace

Transverse alternate heating system of coke oven

The utility model discloses a coal gangue pyrolysis device. The coal gangue pyrolysis device comprises a pyrolysis gasification chamber, an outer gas heating device, an inner gas heating device and a gas reversing device, wherein the pyrolysis gasification chamber is an annular space formed by an inner ring wall and an outer ring wall; the outer gas heating device surrounds the periphery of the ring of the outer ring wall of the pyrolysis gasification chamber; the inner gas heating device is arranged in the ring of the inner ring wall; the outer gas heating device is composed of a plurality of groups of associated first gas heaters and second gas heaters with the same structure; each first gas heater comprises a first combustion chamber, a first gas inlet branch pipe and a first heat-storage heat exchanger; similarly, each second gas heater comprises a second combustion chamber, a second gas inlet branch pipe and a second heat-storage heat exchanger; a first combustion chamber and an adjacent second combustion chamber are communicated to form an associated group by combustion chamber through holes; the inner gas heating device mainly comprises a plurality of groups of associated third gas heaters and fourth gas heaters with the same structure. According to the coal gangue pyrolysis device, the combustion is efficient through alternate combustion and heat-storage heat exchange of clean gas.

Coal gangue pyrolysis device

Heat-cycle continuous gangue pyrolysis gasification humidity-adjustment and tail gas purification method

A coal pyrolyzing and carbonizing device of a coal pyrolyzing furnace is arranged in a center of a body of the coal pyrolyzing furnace and includes: a carbonizing room, an external gas heating device, an internal burning heating device and a flame path bow, wherein the carbonizing room is in a loop chamber above the flame path bow, the loop camber is formed by an internal loop wall and an external loop wall made of fire-resistant and heat-conductive materials; the external gas heating device is around an external circle of the external loop wall of the carbonizing room, wherein the external gas heating device comprises at least one equal set of a first gas heater, a second gas heater and a gas reversing device; the internal burning heating device is inside the internal loop wall of the carbonizing room.

Xinmin Wang

Papers

Coal pyrolyzing and carbonizing device of coal pyrolyzing furnace