Method and installation for conversion into fuel of organic material originating for instance from domestic waste

Abstract

A method is provided for converting organic material from domestic refuse into fuel for use in a pulverized coal power plant, comprising of mixing the organic material with at least one flammable material while adding binder, and pressing the mixture to form hard, relatively brittle agglomerates. Further provided is an installation for converting organic material from domestic refuse into fuel, comprising a device for mixing the organic material with at least one flammable material while adding binder, and device for pressing the mixture to form hard, relatively brittle agglomerates.

1 . A method for converting organic material into fuel, said method comprising: 
 mixing the organic material with at least one flammable material while adding binder to produce a mixture; and    pressing the mixture to form hard, relatively brittle agglomerates;    to convert the organic material into fuel.    
   
   
       2 . The method according to  claim 1 , wherein said organic material is domestic refuse.  
   
   
       3 . The method according to  claim 1 , wherein the fuel is suitable for use in a pulverized coal power plant.  
   
   
       4 . The method according to  claim 1 , wherein the organic material is obtained from domestic waste by at least one of: removing non-combustible fractions and drying the waste.  
   
   
       5 . The method according to  claim 1 , wherein the organic material is reduced in size prior to mixing.  
   
   
       6 . The method according to  claim 1 , wherein the flammable material is a material with a high carbon content.  
   
   
       7 . The method according to  claim 1 , wherein the binder is adapted to the nature of the materials for mixing.  
   
   
       8 . The method according to  claim 1 , wherein the method comprises pressing the mixture more than once.  
   
   
       9 . The method according to  claim 1 , wherein said pressing is at an increased temperature.  
   
   
       10 . The method according to  claim 1 , wherein the mixture is pressed in a pellet press with flat die.  
   
   
       11 . The method according to  claim 1 , wherein the resulting agglomerates are ground to powder before being fed to a furnace of a pulverized coal power plant.  
   
   
       12 . The method according to  claim 1 , wherein the mixture has a composition and/or calorific value corresponding to that of coal.  
   
   
       13 . An installation for converting organic material into fuel, the installation comprising: 
 a device for mixing the organic material with at least one flammable material while adding binder; and    a device for pressing the mixture to form hard, relatively brittle agglomerates.    
   
   
       14 . The installation as claimed in  claim 11 , wherein said installation further comprises a device placed before the mixing device for the purpose of recovering organic material from domestic waste.  
   
   
       15 . The installation according to  claim 14 , wherein the recovering device comprises an element for removing non-combustible fractions and/or an element for drying the waste.  
   
   
       16 . The installation as claimed in  claim 15 , where the installation further comprises a device for reducing the waste in size placed between the recovering device and the mixing device.  
   
   
       17 . The installation according to  claim 13 , wherein the mixing device comprises at least one inlet for organic material, at least one inlet for a flammable material and at least one inlet for a binder.  
   
   
       18 . The installation according to  claim 13 , wherein the pressing device comprises a number of presses placed in series.  
   
   
       19 . The installation according to  claim 13 , wherein the pressing device is provided with means for feeding at least a part of the pressed mixture back to its inlet.  
   
   
       20 . The installation according to  claim 13 , wherein the pressing device is adapted to increase the temperature of the mixture.  
   
   
       21 . The installation according to  claim 13 , wherein the pressing device comprises at least one pellet press with flat die.  
   
   
       22 . The installation according to  claim 13 , wherein the pressing device is adapted to generate a pressure and temperature such that the thereby formed agglomerates can be ground to powder.