System for the thermal preparation of reclaimed road material containing pahs or oil sludge

Abstract

A system for the thermal preparation of reclaimed road material containing PAHs, or of oil sludge having a loading station for pre-comminuted reclaimed road material or oil sludge, a rotary kiln in which the reclaimed road material or the oil sludge is burned, while oxidation air is fed in, a dust separator to which the flue gases produced in the rotary kiln are fed, an after-burner to which the flue gases leaving the dust separator are fed, and a filter to which the flue gases arising in the after-burning means are fed. These components are divided into a plurality of modules, each of which includes a weight and dimension such that each may individually be transported using conventional road transport means, in particular low loaders or heavy goods vehicles.

Claimed is: 
     
         1 . A system for the thermal preparation of reclaimed road material containing PAHs, or of oil sludge, comprising:
 a loading station for pre-comminuted reclaimed road material or oil sludge;   a rotary kiln in which the reclaimed road material or the oil sludge is burned while oxidation air is fed in;   a dust separator into which flue gases produced in the rotary kiln are fed;   an after-burner to which the flue gases leaving the dust separator are fed;   a filter to which the flue gases arising in the after-burner are fed,   wherein the loading station, the rotary kiln, the dust separator, the after-burner, and the filter are divided into a plurality of modules, each of which has a weight and dimensions such that each is capable of individually being transported using conventional road transport means.   
     
     
         2 . The system according to  claim 1 , further comprising:
 a module in which components required to supply the modules from the plurality of modules with operating media are grouped together.   
     
     
         3 . The system according to  claim 1 , wherein at least two of the modules from the plurality of modules are connected to one another by way of a pipe or a hose having a variable shape. 
     
     
         4 . The system according to  claim 1 , wherein the loading station, the rotary kiln, the dust separator, the after-burner, and the filter are divided into four modules. 
     
     
         5 . The system according to  claim 1 , further comprising: a flue gas cooler arranged between the after-burner and the filter. 
     
     
         6 . The system according to  claim 1 , wherein a heat in the flue gases from the rotary kiln and/or the after-burner is used, at least in part, to pre-heat the oxidation air, which is fed to the rotary kiln and/or the after-burner.