Hybrid combustion apparatus using pyrolysis of water and combustion air
The present invention is intended to provide a hybrid combustion apparatus using the pyrolysis of water and combustion air, in which a combustion chamber is defined by a double wall and divided into a primary combustion chamber configured to combust waste and a secondary combustion chamber configured to combust exhaust gas, and the size (diameter) of a combustion unit through which waste is configured to be different from that of the combustion chamber in which a flame is located, so that combustion temperature is further increased by introducing air, so that heated due to proximity to a flame, as combustion air, combustible waste is combusted at an ultrahigh temperature by pyrolyzing water and combustion air by means of a high combustion temperature, and so that complete combustion is achieved by increasing the time for which a flame stays within the combustion chamber, thereby discharging clean exhaust gas.
1. A hybrid combustion apparatus using pyrolysis of water and combustion air, the hybrid combustion apparatus comprising:
a combustion unit configured such that a housing thereof is formed such that a center portion of the housing in a vertical direction is formed in a column shape and top and bottom surfaces thereof are inclined, and further configured such that a waste stowage support configured such that waste introduced through a waste introduction inlet is stacked thereon while being rotated by driving of a rotational drive device is provided inside the housing;
an ignition unit installed through a top surface of the combustion unit, and configured to ignite waste;
a primary combustion chamber defined by a double wall including an outer shell and an inner shell, installed above the combustion unit, and formed to have a diameter smaller than that of a column portion of the combustion unit;
a primary combustion chamber air blower configured to feed combustion air from one side of a lower end portion of the primary combustion chamber to a gap of the double wall of the primary combustion chamber through a combustion chamber air feed path;
a secondary combustion chamber defined by a double wall including an outer shell and an inner shell, installed above the primary combustion chamber, and configured such that an exhaust outlet configured to discharge exhaust gas is formed through one side of an upper end portion of the secondary combustion chamber;
a shaftless screw pipe formed as a pipe in a column shape whose lower end is closed, vertically installed along inner center portions of the primary and secondary combustion chambers from an upper end portion of the secondary combustion chamber to an upper end portion of the primary combustion chamber, configured such that a plurality of holes is formed at equal intervals in a portion of the shaftless screw pipe located in the primary combustion chamber, and provided therein with a shaftless screw;
a secondary combustion chamber air blower configured to feed combustion air from one side of a lower end portion of the secondary combustion chamber through a gap of the double wall of the secondary combustion chamber to the shaftless screw pipe via an air blowing pipe; and
a high-frequency induction heating furnace provided at a lower end of the combustion unit, and configured to melt combustion ash discharged after combustion and process the ash into slag;
wherein a ring-shaped blocking plate having a predetermined width is installed at an upper end of the primary combustion chamber, a ring-shaped inner end of the blocking plate is vertically bent downward and forms an exhaust outlet vertical wall, and a lower end portion of the shaftless screw pipe is located inside the exhaust outlet vertical wall.
2. The hybrid combustion apparatus of claim 1 , further comprising a spray high-pressure pump configured to spray water into an air blowing pipe adapted to feed combustion air from the secondary combustion chamber air blower to the secondary combustion chamber.
3. The hybrid combustion apparatus of claim 1 , wherein the waste stowage support is configured such that a vertical wall is formed along an edge of a circular bottom surface, the waste stowage support has a shape having an open top, and re-discharge holes through which combustion ash is discharged after combustion of waste are formed at equal intervals along an edge circumference where the vertical wall and the bottom surface come into contact with each other.
4. The hybrid combustion apparatus of claim 3 , wherein a combustion gas guide tube is vertically installed through a center portion of the bottom surface of the waste stowage support.
5. The hybrid combustion apparatus of claim 1 , wherein an upper inclined surface of the combustion unit is defined by a double wall including an outer shell and an inner shell, and is configured such that combustion air blown by the primary combustion chamber air blower is fed along the waste stowage support and an inner wall of the combustion unit housing through the combustion unit air feed path and a gap of the double wall.
6. The hybrid combustion apparatus of claim 1 , wherein:
the inner shell of the primary combustion chamber has a height lower than that of the outer shell of the primary combustion chamber, a primary combustion chamber air feed inlet is formed by forming a predetermined interval between an inside surface of the inner shell of the primary combustion chamber and the exhaust outlet vertical wall; and
combustion air fed by the primary combustion chamber air blower is fed to the primary combustion chamber through the double wall between the outer shell and inner shell of the primary combustion chamber and the primary combustion chamber air feed inlet via the combustion chamber air feed path.
7. The hybrid combustion apparatus of claim 1 , wherein:
the inner shell of the secondary combustion chamber has a height lower than that of the outer shell of the secondary combustion chamber, an upper end of the inner shell of the secondary combustion chamber and an upper end of the shaftless screw pipe are connected by an air guide member, and the air guide member is installed to be inclined downward to a center portion thereof; and
combustion air fed by the secondary combustion chamber air blower is fed to the shaftless screw pipe through the double wall between the inner shell and outer shell of the secondary combustion chamber and the air guide member via the air blowing pipe.
8. The hybrid combustion apparatus of claim 1 , wherein:
a lower end portion of the shaftless screw pipe is located inside the exhaust outlet vertical wall, and combustion air is sprayed through the holes formed in the lower end portion of the shaftless screw pipe; and
the combustion air sprayed through the holes formed in the lower end portion of the shaftless screw pipe acts as an air curtain for a flame raised from the primary combustion chamber to the secondary combustion chamber, so that a period for which the flame stays inside the primary combustion chamber is increased.
9. The hybrid combustion apparatus of claim 1 , wherein:
the waste introduction inlet is installed to introduce waste through the inclined top surface of the combustion unit; and
a part of a waste introduction pipe located through the inclined top surface of the combustion unit, which is located between the outer shell and the inner shell, forms a perforated hole screen mesh in which perforated holes are formed at equal intervals.
10. The hybrid combustion apparatus of claim 1 , wherein a space between lower end portions of the outer shell and the inner shell constituting the primary combustion chamber is closed by a closing plate so that combustion air fed by the primary combustion chamber air blower through the combustion chamber air feed path is fed between the outer shell and inner shell of the primary combustion chamber above the closing plate and combustion air fed through the combustion unit air feed path is fed between an outer shell and inner shell of the top surface of the combustion unit below the closing plate.