Method for recycling building

Abstract

A method of recycling building materials is described, including the steps of introducing the building material into a cement kiln or a boiler, and combusting a combustible portion of the building material as a fuel within the kiln or boiler. The noncombustible portion of the building material is incorporated into a clinker material within the kiln or used to reduce emissions form the boiler.

1 . A method of recycling building materials comprising a shingle including an asphalt filler material from a glass substrate of said shingle having a combustible portion and a noncombustible portion into a fuel and useful residue material, comprising: 
 feeding said shingle to a fluidized bed boiler having a fuel feed system and a lime feed system, and wherein the amount of lime fed into the boiler is reduced based on the amount of lime in the asphalt filler;    introducing building materials comprising a shingle including an asphalt material from a glass substrate of said shingle into a combustion chamber;    combusting the asphalt material from the glass substrate of the shingle as a fuel within the combustion chamber;    using the noncombustible portion of the building materials as one of a clinker material wherein said substrate is incorporated into said clinker material as a source of minerals for said clinker material or wherein an inorganic portion of the building materials comprising a filler in said asphalt is used as an emissions reduction material in a boiler; and    reducing an amount of a material for said one of the clinker material and emissions reduction material due to the noncombustible portion of the building materials.    
     
     
         2 . A method according to  claim 1 , wherein the building materials comprise shingles.  
     
     
         3 . A method according to  claim 2 , wherein the shingles comprise asphalt and wherein the recycling process further comprising the steps of combusting said asphalt and an organic substrate of the shingle.  
     
     
         4 . A method according to  claim 3 , wherein the shingle further comprises an asphalt filler and wherein said shingle comprises surface granules, said granules providing a source of lime as an emissions reduction material in a boiler.  
     
     
         5 . A method according to  claim 2 , wherein the shingles comprise surface granules and asphalt with a filler, the method further comprising the steps of: 
 combusting said asphalt from a glass substrate of the shingle; and    incorporating a noncombustible portion of the shingle in a bed of the boiler as an emissions reduction material.    
     
     
         6 . A method according to  claim 2 , wherein the shingle comprises a filled resinous material, the recycling process further comprising the steps of: 
 combusting a resin from a filler material of the shingle; and    using said filler as an emissions reduction material in a boiler.    
     
     
         7 . A method according to  claim 1 , further comprising: 
 removing the building materials from a building before introducing the building materials into a cement kiln or a boiler.    
     
     
         8 . A method according to  claim 7 , wherein the building materials comprise siding.  
     
     
         9 . A method of recycling a shingle into a fuel and useful residue material, comprising: 
 introducing the shingle into a combustion chamber of a fluidized bed boiler having a fuel feed system and a lime feed system;    combusting an asphalt material from a glass substrate of the shingle as a fuel within the combustion chamber; and    using a filler in said asphalt as an emissions reduction material in the boiler, wherein an amount of lime fed into the boiler is reduced based on an amount of lime in the asphalt filler.    
     
     
         10 . A method according to  claim 9 , wherein the asphalt is filled with a limestone or dolomitic material and the limestone or dolomitic material provides a source of lime to reduce an amount of sulfur emissions from the boiler.  
     
     
         11 . A method according to  claim 10 , wherein the shingle further comprises surface granules, said granules providing a source of bed material in said boiler.  
     
     
         12 . A method according to  claim 10 , wherein said shingle comprises scrap from a manufacture of roofing shingles.  
     
     
         13 . A method according to  claim 9 , wherein said shingle is removed from a building along with further building materials selected from the group consisting of nails, wood, felt paper, ice shield, and roofing accessories, and wherein each of said further building materials provides fuel or bed materials for said boiler.  
     
     
         14 . A method of recycling building materials into a fuel and useful residue material, comprising: 
 introducing the building materials into a combustion chamber;    combusting a combustible portion of the building materials as a fuel within the combustion chamber; and    using the noncombustible portion of the building materials as one of a clinker material or an emissions reduction material.    
     
     
         15 . A method according to  claim 14 , wherein an organic portion of the building materials is combusted and an inorganic portion of the building materials is used as an emissions reduction material.  
     
     
         16 . A method according to  claim 15 , wherein the building materials comprises a shingle, the recycling process further comprising the steps of: 
 combusting an asphalt material from a glass substrate of the shingle; and    using a filler in said asphalt as an emissions reduction material in a boiler.    
     
     
         17 . A method according to  claim 16 , wherein said method comprises feeding said shingle into as a fuel to a fluidized bed boiler having a fuel feed system and a lime feed system, and wherein the amount of lime fed into the boiler is reduced based on the amount of lime in the asphalt filler.  
     
     
         18 . A method according to  claim 16 , wherein the asphalt is filled with a limestone or dolomitic material and the limestone or dolomitic material provides a source of lime to reduce an amount of sulfur emissions from the boiler.  
     
     
         19 . A method according to  claim 18 , wherein the shingle further comprises surface granules, said granules providing a source of bed material in said boiler.  
     
     
         20 . A method according to  claim 19 , wherein said shingle comprises scrap from the manufacture of roofing shingles.  
     
     
         21 . A method according to  claim 16 , wherein said shingle is removed from a building along with further building materials selected from the group consisting of nails, wood, felt paper, ice shield, and roofing accessories, and wherein each of said further building materials provides fuel or bed materials for said boiler.  
     
     
         22 . A method according to  claim 15 , wherein the building materials comprise shingles.  
     
     
         23 . A method according to  claim 22 , wherein the shingles comprise asphalt and wherein the recycling process further comprising the steps of combusting said asphalt and an organic substrate of the shingle.  
     
     
         24 . A method according to  claim 23 , wherein the shingle further comprises an asphalt filler and wherein said shingle comprises surface granules, said granules providing a source of lime or as an emissions reduction material in a boiler.  
     
     
         25 . A method according to  claim 22 , wherein the shingles comprising surface granules and asphalt with a filler, the method further comprising the steps of: 
 combusting said asphalt from a glass substrate of the shingle; and    incorporating a noncombustible portion of the shingle in a bed of the boiler as an emissions reduction material.    
     
     
         26 . A method according to  claim 22 , wherein the shingle comprises a filled resinous material, the recycling process further comprising the steps of: 
 combusting a resin from a filler material of the shingle; and    using said filler as an emissions reduction material in a boiler.    
     
     
         27 . A method according to  claim 14 , further comprising: 
 removing the building materials from a building before introducing the building materials into a cement kiln or a boiler.    
     
     
         28 . A method according to  claim 27 , wherein the building materials comprise siding.  
     
     
         29 . A method of recycling a shingle into a fuel and useful residue material, comprising: 
 introducing the shingle into a combustion chamber of a fluidized bed boiler having a fuel feed system and a lime feed system;    combusting an asphalt material from a glass substrate of the shingle as a fuel within the combustion chamber; and    using a filler in said asphalt as an emissions reduction material in the boiler, wherein an amount of lime fed into the boiler is reduced based on an amount of lime in the asphalt filler.    
     
     
         30 . A method of recycling asphalt shingles having a filler material, comprising: 
 introducing the shingles into a fluidized bed boiler;    combusting the asphalt from said shingles as a fuel in said boiler; and    using said filler material to reduce emissions from said boiler.    
     
     
         31 . A method of recycling asphalt shingles according to  claim 30 , further comprising the step of incorporating a surfacing granule as a bed material in said boiler.  
     
     
         32 . A method according to  claim 30 , wherein the fluidized bed boiler comprises a system for feeding an amount of lime into the boiler, and wherein the amount of lime is reduced based on the amount of lime in the shingles.  
     
     
         33 . A method according to  claim 30 , wherein the fluidized bed boiler comprises a system for feeding an amount of lime into the boiler, and wherein the amount of lime is reduced based on the amount of shingles fed into the boiler as fuel.  
     
     
         34 . A method according to  claim 30 , wherein the fluidized bed boiler comprises a system for feeding an amount of lime into the boiler, and wherein the amount of lime fed from the lime feed system is reduced by at least five percent due to the filler material.  
     
     
         35 . A method according to  claim 30 , wherein the boiler combusts an amount of fuel, and wherein an amount of lime fed into the boiler comprises at least five percent by weight of the fuel, and wherein the shingles contribute at least ten percent of said lime.  
     
     
         36 . A method according to  claim 30 , wherein the fluidized bed boiler comprises a system for feeding an amount of lime into the boiler, and wherein the amount of lime fed from the lime feed system is reduced by at least five percent due to the filler material.  
     
     
         37 . A method according to  claim 36 , wherein the amount of lime fed from the lime feed system is reduced by at least fifteen percent due to the filler material.  
     
     
         38 . A method according to  claim 36 , wherein the boiler combusts an amount of fuel, and wherein the bed includes approximately twenty percent lime by weight of the fuel, and wherein the asphalt contributes at least one of said approximately twenty percent lime.  
     
     
         39 . A method according to  claim 36 , wherein the asphalt contributes at least approximately three of said approximately twenty percent lime.  
     
     
         40 . A method according to  claim 39 , wherein said asphalt comprises at least approximately ten percent of said fuel.  
     
     
         41 . A method according to  claim 39 , wherein said asphalt comprises asphalt shingles, and wherein said asphalt shingles comprise at least approximately ten percent by weight of said fuel.  
     
     
         42 . A method of recycling building materials having a combustible portion and a noncombustible portion into a cement material, comprising: 
 introducing the building materials into a cement kiln;    combusting the combustible portion of the building materials as a fuel; and incorporating the noncombustible portion of the building materials into a clinker material wherein an organic portion of the building materials is combusted and an inorganic portion of the building materials is incorporated into the clinker material, wherein the building materials comprises a shingle, the recycling process further comprising the steps of: combusting an asphalt material from a glass substrate of the shingle;    and incorporating said substrate into said clinker material as a source of minerals for said cement material.    
     
     
         43 . A method according to  claim 42 , wherein said substrate further comprises silica and useful elements comprising Calcium and Aluminum which are incorporated into said clinker material as a source of minerals for said cement material.  
     
     
         44 . A method according to  claim 42 , further comprising: 
 removing the building materials from a building before introducing the building materials into a cement kiln.    
     
     
         45 . A method according to  claim 44 , wherein the building materials comprise siding.  
     
     
         46 . A method of recycling building materials comprising shingles having a combustible portion and a noncombustible portion into a cement material, comprising: 
 introducing the shingles into a cement kiln;    combusting an asphalt portion of the shingles from a glass substrate of the shingles as a fuel; and    incorporating said substrate and a limestone or dolomitic filler material from the asphalt as a source of minerals, including calcium and magnesium from said filler, in said cement material.    
     
     
         47 . A method according to  claim 46 , wherein the shingle further comprises surface granules, said granules providing a source of minerals in said cement.  
     
     
         48 . A method according to  claim 47 , wherein said shingle comprises scrap from the manufacture of roofing shingles.  
     
     
         49 . A method of recycling building materials comprising a shingle into a cement material, comprising: 
 removing the building materials, including the shingle, from a building along with further building materials selected from the group consisting of nails, wood, felt paper, ice shield, and roofing accessories;    introducing the building materials into a cement kiln;    combusting an asphalt material from a glass substrate of the shingle as a fuel and incorporating said substrate into said clinker material as a source of minerals for said cement material;    combusting a combustible portion of the further building materials as a fuel; and    incorporating the noncombustible portion of the building materials into a clinker material, wherein each of said further building materials provides fuel or raw materials for said cement material.    
     
     
         50 . A method according to  claim 49 , wherein the asphalt is filled with limestone or dolomite and the limestone or dolomite provides a source of calcium and magnesium in said cement.  
     
     
         51 . A method according to  claim 50 , wherein the further building materials comprises nails and wherein said nails provide iron for said cement.  
     
     
         52 . A method according to  claim 51 , wherein said shingle further comprises surface granules, said granules providing a source of minerals in said cement.  
     
     
         53 . A method of recycling building materials comprising shingles having a combustible portion and a noncombustible portion into a cement material, comprising: 
 introducing the shingles into a cement kiln;    combusting the combustible portion of the shingles as a fuel; and    incorporating the noncombustible portion of the shingles into a clinker material;    wherein an organic portion of the shingles is combusted and an inorganic portion of the shingles is incorporated into the clinker material.    
     
     
         54 . A method of recycling building materials comprising shingles having a combustible portion and a noncombustible portion into a cement material, comprising: introducing the shingles into a cement kiln; 
 combusting the combustible organic portion of the shingles as a fuel, wherein the shingles comprise asphalt and wherein the recycling process further comprising the steps of combusting said asphalt and an organic substrate of the shingles; and    incorporating the noncombustible inorganic portion of the shingles into a clinker material.    
     
     
         55 . A method according to  claim 54 , wherein the shingle further comprises surface granules, said granules providing a source of minerals in said cement.  
     
     
         56 . A method according to  claim 55 , wherein the shingle further comprises a filler material in said asphalt and wherein filler providing a source of minerals in said cement.  
     
     
         57 . A method according to  claim 53 , wherein the shingle comprises a filled asphalt, the recycling process further comprising the steps of: 
 combusting said asphalt from a glass substrate of the shingle; and    incorporating said substrate into said cement material as a source of silica.    
     
     
         58 . A method of recycling building materials comprising a shingle including a mineral-filled asphalt and a filler material into a cement material, the method comprising: 
 introducing the shingle into a cement kiln;    combusting the asphalt as a fuel; and    incorporating the filler material of the asphalt as a source of lime, and a glass mat as a source of silica, into a clinker material.    
     
     
         59 . A method of recycling asphalt shingles according to  claim 58 , further comprising the step of incorporating a surfacing granule as a source of minerals into a clinker material.  
     
     
         60 . A method of recycling building materials comprising a resinous shingle comprising a filler and having a combustible portion and a noncombustible portion into a cement material, the method comprising: 
 introducing the shingle into a cement kiln;    combusting the resin from a filler material of the shingle as a fuel; and    incorporating the filler into said cement material as a source of minerals.    
     
     
         61 . A method according to any one of claims  14 ,  42 ,  46 ,  48 ,  49 ,  53 ,  54 ,  58  and  60 , wherein the shingles or building materials are introduced in the combustion chamber or kiln through a precalciner and wherein the step of combusting the building materials, shingles, combustible organic portion of the shingles, resin from a filler material of the shingle or asphalt material from a glass substrate comprises combusting the combustible portion of the building materials, combustible organic portion of the shingles, resin from a filler material of the shingle or a portion of the asphalt within the precalciner.  
     
     
         62 . A method according to any one of claims  14 ,  42 ,  46 ,  48 ,  49 ,  53 ,  54 ,  58 ,  60 , and  61  wherein the step of combusting the building materials, shingles, combustible organic portion of the shingles, resin from a filler material of the shingle or an asphalt material from a glass substrate comprises combusting the building materials, shingles, combustible organic portion of the shingles, resin from a filler material of the shingle a portion of the asphalt within the kiln.