Coal pyrolyzing and carbonizing device of coal pyrolyzing furnace

A coal pyrolyzing and carbonizing device of a coal pyrolyzing furnace, arranged in the middle of a body of said coal pyrolyzing furnace, comprising:

• a carbonizing room, an external gas heating device, an internal burning heating device and a flame path bow, wherein said flame path bow has a structure for supporting an internal loop wall of said carbonizing room and a central annular wall of said internal burning heating device;
• said carbonizing room is in a loop chamber above said flame path bow, said loop chamber is formed by an internal loop wall and an external loop wall made of fire-resistant and heat-conductive materials;
• said external gas heating device is attached to an exterior of said external loop wall of said carbonizing room, wherein said external gas heating device comprises at least one equal set of a first gas heater, a second gas heater and a gas reversing device comprising one way exhaust valves;
• said internal burning heating device is inside said internal loop wall of said carbonizing room, wherein said internal burning heating device comprises at least one equal set of a third gas heater, a fourth gas heater and a coke quenching exhaust heater;
• wherein said coke quenching exhaust heater of said internal burning heating device comprises an internal flame path, an air assisting tube, a primary gas refilling tube, a secondary gas refilling tube, a gas refilling loop, a center loop wall, an internal flame path isolating wall and a center pass, wherein said internal flame path is divided into at least one set of an internal main flame path and an internal sub flame path in parallel by said internal loop wall of said carbonizing room, said center loop wall inside said internal loop wall of said carbonizing room and at least one said internal flame path isolating wall;
• an upper sealing isolation plate and a lower sealing isolation plate are provided in said internal sub flame path and divide said internal sub flame path into an upper section, a middle section and a lower section, which forms an upper internal sub flame path section, a middle internal sub flame path section and a lower inter sub flame path section;
• a waste gas communicating hole is drilled on a flame path isolating wall between said upper internal sub flame path section and said internal main flame path, a hot waste gas outputting path is provided at a top portion of said upper internal sub flame path section and said internal main flame path, and a flame path communicating hole is drilled on a flame path isolating wall between said lower internal sub flame path section and said internal main flame path;
• said center pass is formed by said center loop wall, a pass isolating plate is provided at a part of said center pass which is abreast of said upper sealing isolating plate for dividing said center pass into an upper portion and a lower portion, in such a manner that said upper portion forms a buffer area and said lower portion forms a high-temperature combustible exhaust inputting pass;
• an exhaust inputting hole is drilled on said center loop wall and passes through said buffer area, said internal main flame path and said upper internal sub flame path section;
• a combustible exhaust inputting hole is drilled at a bottom portion of said center loop wall and passes through said high-temperature combustible exhaust inputting pass, said internal main flame path and said lower internal sub flame path section;
• said gas refilling loop is provided on an external wall of said coal pyrolyzing furnace and communicates with said air assisting tube as well as said primary gas refilling tube and said secondary gas refilling tube;
• said primary gas refilling tube and said secondary gas refilling tube pass below a strip bow of said flame path bow and extend upwards for being inside said flame path isolating wall between said internal main flame path and said internal sub flame path;
• an opening of said primary gas refilling tube is arranged under said lower isolating plate and respectively connected to said internal main flame path and said internal sub flame path;
• an opening of said secondary gas refilling tube is connected to said internal main flame path;
• said middle internal sub flame path section forms a four-side closed independent gas combustor;
• adjacent middle internal sub flame path sections communicate with each other through a combustor pass and forms a cooperating set, said combustor pass is under said upper isolating plate and passes through said internal main flame path between said adjacent middle internal sub flame path sections;
• said third gas heater comprises a third combustor, a third coal gas inputting sub-tube, a third heat storing chamber, a third heat storing body, a third air inputting sub-tube and a third exhaust outputting sub-tube, wherein said third combustor is formed by said middle internal sub flame path section, said third coal gas inputting sub-tube passes below said strip bow of said flame path bow and extends upwards for being connected to said third combustor by passing through said flame path isolating wall which is formed by said middle internal sub flame path section;
• said third heat storing chamber is arranged on said body of said coal pyrolyzing furnace under said strip bow, and said third heat storing body is arranged inside said third heat storing chamber;
• a first end of said third heat storing chamber passes below said strip bow of said flame path bow through an extending pass and extends upwards for being connected to a bottom of said third combustor by passing through said flame path isolating wall, a second end of said third heat storing chamber is respectively connected to said third air inputting sub-tube and said exhaust outputting sub-tube;
• similarly, said fourth gas heater comprises a fourth combustor, a fourth coal gas inputting sub-tube, a fourth heat storing chamber, a fourth heat storing body, a fourth air inputting sub-tube and a fourth exhaust outputting sub-tube, wherein a fourth combustor forms a parallel set with said third combustor through said combustor pass.