Apparatus for manufacturing solid fuel using combustible waste

Abstract

There is provided an apparatus for manufacturing solid fuel using combustible waste, to manufacture RPF or RDF by melting general waste and combustible waste as well as the waste plastics, such as waste tires, waste vinyl and PET bottles, by using heat generated in a combustion apparatus. The apparatus for manufacturing the solid fuel comprises: combustion equipment constituted by including a combustion apparatus, an ignition burner, a fuel throwing opening for throwing combustible waste into a combustion chamber, a ventilation unit for supplying air to the combustion chamber, and an outlet for discharging heat and gas generated upon combustion; and a heating chamber connected to the outlet and including a plurality of combustible waste supply pipes inside, and wherein an extruder with a spiral screw formed around a rotation shaft rotating by a motor is built in each combustible waste supply pipe, a hopper for supplying shredded combustible waste is positioned at an end of the extruder towards the motor, and an extrusion nozzle for extruding melted combustible waste is formed at the other end of the extruder.

1 . An apparatus for manufacturing solid fuel using combustible waste, comprising:
 combustion equipment constituted by including a combustion apparatus, an ignition burner, a fuel throwing opening for throwing combustible waste into a combustion chamber, a ventilation unit for supplying air to the combustion chamber, and an outlet for discharging heat and gas generated upon combustion; and   a heating chamber connected to the outlet and including a plurality of combustible waste supply pipes inside, and   wherein an extruder with a spiral screw formed around a rotation shaft rotating by a motor is built in each combustible waste supply pipe, a hopper for supplying shredded combustible waste is positioned at an end of the extruder towards the motor, and an extrusion nozzle for extruding melted combustible waste is formed at the other end of the extruder.   
   
   
       2 . An apparatus for manufacturing solid fuel using combustible waste, comprising:
 combustion equipment constituted by including a combustion apparatus, an ignition burner, a fuel throwing opening for throwing combustible waste into a combustion chamber, a ventilation unit for supplying air to the combustion chamber, and an outlet for discharging heat and gas generated upon combustion;   a distribution chamber connected to the outlet;   a number of divided pipes divided from the distribution chamber; and   a heating chamber connected to each divided pipe and including a combustible waste supply pipe inside, and   wherein an extruder with a spiral screw formed around a rotation shaft rotating by a motor is built in each combustible waste supply pipe, a hopper for supplying shredded combustible waste is positioned at an end of the extruder towards the motor, and an extrusion nozzle for extruding melted combustible waste is formed at the other end of the extruder.   
   
   
       3 . The apparatus according to  claim 1 , wherein the fuel throwing opening is installed on a sidewall of the combustion chamber. 
   
   
       4 . The apparatus according to  claim 2 , wherein the fuel throwing opening is installed on a sidewall of the combustion chamber. 
   
   
       5 . The apparatus according to  claim 1 , wherein the fuel throwing opening is installed on a top (ceiling) of the combustion chamber. 
   
   
       6 . The apparatus according to  claim 2 , wherein the fuel throwing opening is installed on a top (ceiling) of the combustion chamber. 
   
   
       7 . The apparatus according to  claim 1 , further comprising:
 a ventilation unit for supplying cold air, installed between the outlet and the heating chamber, to control a temperature inside the heating chamber.   
   
   
       8 . The apparatus according to  claim 2 , further comprising:
 a ventilation unit for supplying cold air, installed between the outlet and the distribution chamber, to control a temperature inside the heating chamber.   
   
   
       9 . The apparatus according to  claim 7 , further comprising:
 a cooling chamber for receiving the cold air supplied from the ventilation unit, installed around the combustible waste supply pipe at a front end of the heating chamber, i.e., at a part where the extrusion nozzle is formed.   
   
   
       10 . The apparatus according to  claim 8 , further comprising:
 a cooling chamber for receiving the cold air supplied from the ventilation unit, installed around the combustible waste supply pipe at a front end of the heating chamber, i.e., at a part where the extrusion nozzle is formed.   
   
   
       11 . The apparatus according to  claim 1 , wherein the extrusion nozzle includes one to twenty extrusion openings formed therein. 
   
   
       12 . The apparatus according to  claim 2 , wherein the extrusion nozzle includes one to twenty extrusion openings formed therein. 
   
   
       13 . The apparatus according to  claim 1 , wherein the spiral screw formed on an outer circumferential surface of the rotation shaft has a pitch interval becoming narrower towards an end in a rotation direction. 
   
   
       14 . The apparatus according to  claim 2 , wherein the spiral screw formed on an outer circumferential surface of the rotation shaft has a pitch interval becoming narrower towards an end in a rotation direction. 
   
   
       15 . The apparatus according to  claim 1 , wherein the rotation shaft has a diameter becoming greater towards the end in the rotation direction. 
   
   
       16 . The apparatus according to  claim 2 , wherein the rotation shaft has a diameter becoming greater towards the end in the rotation direction. 
   
   
       17 . The apparatus according to  claim 1 , wherein the extruder built in the combustible waste supply pipe is formed integrally with two spiral screws being respectively twisted about two rotation shafts in the opposite direction to each other. 
   
   
       18 . The apparatus according to  claim 2 , wherein the extruder built in the combustible waste supply pipe is formed integrally with two spiral screws being respectively twisted about two rotation shafts in the opposite direction to each other. 
   
   
       19 . The apparatus according to  claim 1 , further comprising:
 a cutting unit for cutting the melted and extruded combustible waste, installed at a front end of the extrusion nozzle.   
   
   
       20 . The apparatus according to  claim 2 , further comprising:
 a cutting unit for cutting the melted and extruded combustible waste, installed at a front end of the extrusion nozzle.   
   
   
       21 . The apparatus according to  claim 2 , further comprising:
 a divided pipe opening/closing unit for cutting off the heat flowing into the heating chamber, installed in each divided pipe.   
   
   
       22 . The apparatus according to  claim 1 , further comprising:
 an unit for checking a temperature, installed in the heating chamber.   
   
   
       23 . The apparatus according to  claim 2 , further comprising:
 an unit for checking a temperature, installed in the heating chamber.   
   
   
       24 . The apparatus according to  claim 1 , wherein the temperature inside the heating chamber is 150 to 400° C. 
   
   
       25 . The apparatus according to  claim 2 , wherein the temperature inside the heating chamber is 150 to 400° C. 
   
   
       26 . The apparatus according to  claim 2 , further comprising:
 an exhaust chamber for collecting the gas exhausted from each heating chamber.