Method and device for preparing active particle-containing steam

Abstract

A device for preparing a high-temperature and active particle-containing steam. The device includes a steam generator including an inlet for introducing a plasma medium and an inlet for introducing a steam. In the steam generator, the steam is heated and activated by the plasma medium to form an active particle-containing steam which improves the gasification rate and efficiency in the gasification of coal, biomass, and garbage.

The invention claimed is: 
     
         1 . A device for preparing an active particle-containing steam, the device comprising:
 a plasma generator, the plasma generator comprising a non-oxidizing gas inlet and a plasma outlet; and   a steam generator, the steam generator comprising a plasma inlet and a steam inlet;   
       wherein:
 the non-oxidizing gas inlet is adapted to receive non-oxidizing gases into the plasma generator; 
 the plasma generator is adapted to ionize the non-oxidizing gases to form a plasma working medium; 
 the plasma inlet is surrounded by the steam inlet; 
 the plasma inlet communicates with the plasma outlet and is adapted to receive the plasma working medium into the steam generator; 
 the steam inlet is adapted to receive a first steam into the steam generator; and 
 when in use, the first steam is heated and activated by the plasma working medium in the steam generator to form the active particle-containing steam. 
 
     
     
         2 . The device of  claim 1 , wherein
 the steam generator further comprises between 1 and 4 annular gaps, a housing, a pressure conveyor, and a plurality of nozzles,   the between 1 and 4 annular gaps are sequentially arranged at intervals on the housing and divide the housing into a plurality of sections, each of the plurality of sections has an inner diameter;   the inner diameters of the plurality of sections are sequentially larger along the direction from the plasma inlet to the plasma outlet; and   the between 1 and 4 annular gaps are connected to the pressure conveyor through the plurality of nozzles and are adapted to receive a second steam into the steam generator, wherein the second steam is pushed into the steam generator by the pressure conveyor.   
     
     
         3 . The device of  claim 2 , wherein each of the plurality of sections has a length of between 300 and 800 mm. 
     
     
         4 . The device of  claim 2 , wherein each of the between 1 and 4 annular gaps has a radial width of between 3 and 15 mm. 
     
     
         5 . The device of  claim 1 , wherein the steam generator further comprises an end surface comprising a central part; and the plasma inlet is disposed at the central part. 
     
     
         6 . The device of  claim 1 , wherein the steam generator further comprises a rotary guide vane; and the rotary guide vane is disposed inside the steam inlet and is adapted to rotate the first steam. 
     
     
         7 . The device of  claim 1 , wherein the steam inlet is in an annular shape.