Process for washing and sorting solid residues generated from solid wastes incinerator

Abstract

A process for processing solid residual material that is generated from 1 from solid waste incinerator through a series of crushing and screening processes into homogenous and aggregate material, comprising the steps of (a) feeding the solid residual material to process through a feeder to a sorting unit comprising a plurality of vibration screens of different meshes for sorting the solid residual material into coarse particle size residual material, medium-size residual material, and fine particle size residual material; (b) reclaiming the coarse particle size residual material; (c) using a magnetic separator to remove ferrous metal material and then using a crusher to crush the remaining residual material and then delivering the crushed material to the sorting unit for sorting again; (d) carrying the fine particle size residual material by water through a water channel to a washing unit and keeping the fine particle size residual material in contact with water for about 1 minutes or more so as to let toxic substance be leached in water, and then removing the washed fine particle size residual material from the washing unit to a dewater equipment to dried homogenous stabilized aggregate material.

1 . A process for processing solid residual material that is generated from solid waste incinerator through a series of crushing, screening and washing processes into homogenous aggregate material, comprising the steps of (a) feeding the solid residual material to process through a feeder to a sorting unit comprising a plurality of vibration screens of different meshes for sorting said solid residual material into coarse particle size residual material, medium-size residual material, and fine particle size residual material; (b) reclaiming said coarse particle size residual material; (c) using a magnetic separator to remove ferrous metal material and then using a crusher to crush the remaining residual material and then delivering the crushed material to said sorting unit for sorting again; (d) carrying said fine particle size residual material by water through a water channel to a washing unit and keeping said fine particle size residual material in contact with water for about 1 minutes or more so as to let toxic substance be leached in water, and then removing the washed fine particle size residual material from said washing unit to a dewater equipment to dry homogenous stabilized aggregate material for use.  
   
   
       2 . The process of  claim 1 , wherein a pressured washing flow of water is applied to said solid residual material when processing in said sorting unit.  
   
   
       3 . The process of  claim 1 , wherein said washing unit is a watermill comprised of a water channel and a waterwheel.  
   
   
       4 . The process of  claim 1 , wherein said washing unit is a centrifugal washing unit.  
   
   
       5 . The process of  claim 1 , wherein said washing unit is a non-mechanical type immersion tank.  
   
   
       6 . The process of  claim 1 , wherein the ratio by weight between water used in said washing unit and said solid residual material is preferably 0.6 up.  
   
   
       7 . The process of  claim 1 , wherein the water used in said washing unit is added with a stabilized reagent to stabilize heavy metal material in said solid residual material, said stabilized reagent being a salt compound of low solubility to heavy metal.  
   
   
       8 . A process for processing solid residual material that is generated from solid waste material from a solid waste incinerator through a series of crushing and screening processes into homogenous aggregate material, comprising the steps of (a) feeding the solid residual material to process through a feeder to a sorting unit comprising a plurality of vibration screens of different meshes for sorting said solid residual material into coarse particle size residual material, medium-size residual material, and fine particle size residual material; (b) reclaiming said coarse particle size residual material; (c) using a magnetic separator to remove ferrous metal material and then using a crusher to crush the remaining residual material and then screening said remaining residual material through a separator into a fine particle size residual material; (d) carrying said fine particle size residual material by water through a water channel to a washing unit and keeping said fine particle size residual material in contact with water for about 1 minutes or more so as to let toxic substance be leached in water, and then removing the washed fine particle size residual material from said washing unit to a dewater equipment to dry homogenous stabilized aggregate material for use.  
   
   
       9 . The process of  claim 8 , wherein a pressured washing flow of water is applied to said solid residual material when processing in said sorting unit.  
   
   
       10 . The process of  claim 8 , wherein said washing unit is a watermill comprised of a water channel and a waterwheel.  
   
   
       11 . The process of  claim 8 , wherein said washing unit is a centrifugal washing unit.  
   
   
       12 . The process of  claim 8 , wherein said washing unit is a non-mechanical type immersion tank.  
   
   
       13 . The process of  claim 8 , wherein the ratio by weight between water used in said washing unit and said solid residual material is preferably 0.6 up.  
   
   
       14 . The process of  claim 8 , wherein the water used in said washing unit is added with a stabilized reagent to stabilize heavy metal material in said solid residual material, said stabilized reagent being a salt compound of low solubility to heavy metal.  
   
   
       15 . A process for processing solid residual material that is generated from solid waste material from a solid waste incinerator through a series of crushing and screening processes into homogenous and aggregate material, comprising the steps of (a) feeding the solid residual material to process through a feeder to a sorting unit comprising a plurality of vibration screens of different meshes for sorting said solid residual material into coarse particle size residual material, medium-size residual material, and fine particle size residual material; (b) reclaiming said coarse particle size residual material; (c) using a magnetic separator to remove ferrous metal material and then using a crusher to crush the remaining residual material and then delivering the crushed material to said sorting unit for sorting again; (d) carrying said fine particle size residual material by a water channel to a washing unit and keeping said fine particle size residual material in contact with water for about 1 minutes or more so as to let toxic substance be leached in water, and then removing the washed fine particle size residual material from said washing unit to a second washing unit and keeping said fine particle size residual material in contact with water in said second washing unit for about 1 minutes or more and then removing the washed fine particle size residual material from said second washing unit to a dewater equipment to dry homogenous stabilized aggregate material.  
   
   
       16 . The process of  claim 15 , wherein a pressured washing flow of water is applied to said solid residual material when processing in said sorting unit.  
   
   
       17 . The process of  claim 15 , wherein said washing unit is a watermill comprised of a water channel and a waterwheel.  
   
   
       18 . The process of  claim 15 , wherein said washing unit is a centrifugal washing unit.  
   
   
       19 . The process of  claim 15 , wherein said washing unit is a non-mechanical type immersion tank.  
   
   
       20 . The process of  claim 15 , wherein said second washing unit is a watermill comprised of a water channel and a waterwheel.  
   
   
       21 . The process of  claim 15 , wherein said second washing unit is a centrifugal washing unit.  
   
   
       22 . The process of  claim 15 , wherein said second washing unit is a non-mechanical type immersion tank.  
   
   
       23 . The process of  claim 15 , wherein the ratio by weight between water usage in said washing unit and said solid residual material is preferably 0.6 up.  
   
   
       24 . The process of  claim 15 , wherein the water used in said washing unit is added with a stabilized reagent to stabilize heavy metal material in said solid residual material, said stabilized reagent being a salt compound of low solubility to heavy metal.  
   
   
       25 . A process for processing solid residual material that is generated from solid waste material from a solid waste incinerator through a series of crushing and screening processes into homogenous and aggregate material, comprising the steps of (a) feeding the solid residual material to process through a feeder to a sorting unit comprising a plurality of vibration screens of different meshes for sorting said solid residual material into coarse particle size residual material, medium-size residual material, and fine particle size residual material; (b) reclaiming said coarse particle size residual material; (c) using a magnetic separator to remove ferrous metal material and then using a crusher to crush the remaining residual material and then screening said remaining residual material through a separator into a fine particle size residual material; (d) carrying said fine particle size residual material by water through a water channel to the first washing unit and keeping said fine particle size residual material in contact with water for about 1 minutes or more so as to let toxic substance be leached in water, and then removing the washed fine particle size residual material from said washing unit to the second washing unit and keeping said fine particle size residual material in contact with water in said second washing unit for about 1 minutes or more and then removing the washed fine particle size residual material from said second washing unit to a dewater equipment to dry homogenous stabilized aggregate material.  
   
   
       26 . The process of  claim 25 , wherein a pressured washing flow of water is applied to said solid residual material when processing in said sorting unit.  
   
   
       27 . The process of  claim 25 , wherein said washing unit is a watermill comprised of a water channel and a waterwheel.  
   
   
       28 . The process of  claim 25 , wherein said the first washing unit is a centrifugal washing unit.  
   
   
       29 . The process of  claim 25 , wherein said the first washing unit is a non-mechanical type immersion tank.  
   
   
       30 . The process of  claim 25 , wherein said the second washing unit is a watermill comprised of a water channel and a waterwheel.  
   
   
       31 . The process of  claim 25 , wherein said the second washing unit is a centrifugal washing unit.  
   
   
       32 . The process of  claim 25 , wherein said the second washing unit is a non-mechanical type immersion tank.  
   
   
       33 . The process of  claim 25 , wherein the ratio by weight between water usage in said washing unit and said solid residual material is preferably 0.6 up.  
   
   
       34 . The process of  claim 25 , wherein the water used in said washing unit is added with a stabilized reagent to stabilize heavy metal material in said solid residual material, said stabilized reagent being a salt compound of low solubility to heavy metal.