Successive pyrolysis system of waste synthetic-highly polymerized compound

Abstract

Disclosed is a successive pyrolysis system of waste synthetic-highly polymerized compound for successively pyrolizing combustible waste by indirect heating at a pyrolysis chamber maintaining an anaerobic or hypoxic environment, and producing refined oil like heavy oil and light oil according to boiling points at a distillation column to be used as heat source for the pyrolysis of the waste. The successive pyrolysis system comprises a hopper; an automatic waste injection device, which discharges a predetermined amount of waste from the hopper; a pyrolysis chamber for maintaining a high-temperature and hypoxic environment, and successively pyrolizing the waste by indirect heating; a gas burning chamber for burning noncondensable gas among pyrolysis gas produced at the time of the pyrolysis of the waste, and providing heat of a predetermined temperature to the outer surface of the pyrolysis chamber to be used as heat source for the pyrolysis of the waste; a refined oil producing means for producing refined oil from the pyrolysis gas reformed after going through catalyst reaction and providing residual noncondensable gas to the gas burning chamber; and an automatic discharging device for successively discharging ashes transported after being pyrolized from the pyrolysis chamber.

1 . A successive pyrolysis system of waste synthetic-highly polymerized compound, comprising: 
 a hopper, which waste is provided to and is stored in a predetermined amount;    an automatic waste injection device, which discharges a predetermined amount of waste from the hopper, and comprises an air removing means for maintaining a hypoxic environment inside by removing external -air flowing in along with the waste;    a pyrolysis chamber for maintaining a high-temperature and hypoxic environment, and successively pyrolizing the waste by indirect heating, in which two or more transport screws are installed rotatably by a driving means to transport, melt and evaporate the waste provided from the waste injection device;    a gas burning chamber for burning noncondensable gas among pyrolysis gas produced at the time of the pyrolysis of the waste, and providing heat of a predetermined temperature to the outer surface of the pyrolysis chamber to be used as heat source for the pyrolysis of the waste provided to the pyrolysis chamber;    a refined oil producing means connected perpendicularly to the upper part of a gas outlet of the pyrolysis chamber, for producing refined oil from the pyrolysis gas catalyst reacted at a catalysis reaction column according to boiling point at a distillation column, and providing residual noncondensable gas that is not condensed to the gas burning chamber as initial fuel; and    an automatic discharging device for successively discharging ashes transported after being pyrolized from the pyrolysis chamber, comprising an air removing means for maintaining a hypoxic environment inside by removing external air, which flows in from the outside when discharging ashes, and the pyrolysis gas discharged from the pyrolysis chamber    
   
   
       2 . The successive pyrolysis system of waste synthetic-highly polymerized compound according to  claim 1 , wherein the automatic waste injection device and discharging device comprise: 
 a first slide gate, which is driven by a first cylinder to be slidingly moved along a guiding groove formed in a gate body, and respectively opens and shuts off the outlet of the hopper and the outlet of pyrolized remnants; and    a second slide gate, which is driven by a second cylinder to be slidingly moved along a guiding groove formed in a gate body and forms an interim storing hopper for maintaining a hypoxic state in a space between the first slide gate    
   
   
       3 . The successive pyrolysis system of waste synthetic-highly polymerized compound according to  claim 1 , wherein the waste is measured by a load cell or a photo sensor and then is injected into the hopper to store the waste in the hopper in a predetermined amount by a sensor for detecting fixed amount injection installed on the hopper  
   
   
       4 . The successive pyrolysis system of waste synthetic-highly polymerized compound according to  claim 3 , wherein the first and second slide gates comprise: 
 an extension guide formed to be extended from the gate body for supporting the slider to slide in a horizontal direction when the slider secedes from the guiding groove;    a seal maintaining means consisting of a ball for maintaining seal by pressing the upper surface of the slider moving slidingly along the guide groove formed in the gate body and the extension guide and sticking the slider to the body, and an elastic member for elastically supporting the ball; and    a guider connected to a connection groove formed between the bottom surface of the slider and the contact surface of the extension guide, for preventing friction between the gate body and the slider when the slider moves    
   
   
       5 . The successive pyrolysis system of waste synthetic-highly polymerized compound according to  claim 4 , wherein the quality of the material of the guider is weaker than the quality of material of the slider to prevent the slider from being broken by friction when the slider moves  
   
   
       6 . The successive pyrolysis system of waste synthetic-highly polymerized compound according to  claim 4 , comprising a foreign material removing case mounted on the gate body to communicate with the guiding grooves of the first and the second slide gates for accumulating foreign materials discharged from the guiding grooves when the slider moves  
   
   
       7 . The successive pyrolysis system of waste synthetic-highly polymerized compound according to  claim 1 , wherein the pyrolysis chamber comprises: 
 a section for preventing backward flow of gas having a circular section, for minimizing the gap between the transport screw and the inlet and outlet casings of the pyrolysis chamber and intercepting backward flow of the pyrolysis gas;    a transport space formed on the lower part of the pyrolysis chamber, for transporting waste when the transport screw is driven; and    a pyrolysis gas staying space formed on the upper part of the pyrolysis chamber, for holding the pyrolysis gas evaporated at the time of pyrolysis of the waste    
   
   
       8 . The successive pyrolysis system of waste synthetic-highly polymerized compound according to  claim 1 , wherein the cross section of the pyrolysis chamber is formed to be a circle, an oval, a rectangle or a streamline  
   
   
       9 . The successive pyrolysis system of waste synthetic-highly polymerized compound according to  claim 7 , wherein the size of the pyrolysis gas staying space of the pyrolysis chamber is formed to be a half of the size of the diameter of the transport wing formed on the transport screw in the shape of a spiral  
   
   
       10 . The successive pyrolysis system of waste synthetic-highly polymerized compound according to  claim 1 , wherein comprising a connection member that is installed on the connection portion between the pyrolysis gas outlet of the pyrolysis chamber and the distillation column, and has elasticity to protect the connection portion when the pyrolysis chamber is contracted and thermal-expanded in a longitudinal direction thereof, by the repeated driving thereof  
   
   
       11 . The successive pyrolysis system of waste synthetic-highly polymerized compound according to  claim 1 , wherein the pyrolysis gas outlet of the pyrolysis chamber is installed inside the transfer passage of heat source of pyrolysis of the waste.  
   
   
       12 . The successive pyrolysis system of waste synthetic-highly polymerized compound according to  claim 1 , wherein the waste injection device comprises: 
 a first pusher installed on the bottom of the second slide gate to be slidingly moved in a horizontal direction, when a third cylinder is driven, for moving the waste discharged from the interim storing hopper in a horizontal direction; and    a second pusher installed on the perpendicular upper part of the inlet of the pyrolysis chamber to be slidingly moved upward and downward, when a fourth cylinder is driven, for injecting the waste moved by the first pusher into the inlet of the pyrolysis chamber    
   
   
       13 . The successive pyrolysis system of waste synthetic-highly polymerized compound according to  claim 1 , wherein a second burner is installed in the transfer passage of heat source of pyrolysis for pyrolizing the waste