GASIFICATION SYSTEM FOR A COMBINATION OF POWER GENERATION AND COMBUSTION BOILER WITH VARIABLE GASIFIER AND OPERATION METHOD THEREOF

摘要

PURPOSE: A gasifier and an operation method is provided to produce a synthetic gas with fair quality generated for a relevant purpose by the selective work of a bottom up or top-down gasification using one gasifier. CONSTITUTION: A variable gasifier(10) is varied to work in the bottom-up or top-down gasification according to the purpose of use being supplied a fuel of coal, bio mass, RDF(refuse derived fuel), and RPF(Refuse Plastic Fuel). A purifier(20) refines the synthetic gas produced in a variable form gasifier. A cyclone(21) separates the solid particle from the synthetic gas ejected from gasifier. A scrubber(22) removes the foreign substance by spraying the washing water on the synthetic gas ejected in the cyclone. A filter(23) separates and removes the minute particle included in the synthetic gas passed through the scrubber. A bypass tube(24) directly transfers the synthetic gas passed through cyclone to a supply controller if there is an gasification reaction with upper flow. A supply controller(30) controls the supply direction of the synthetic gas refined in the purifier. A combustion boiler(40) and a gas engineer is operated being selectively supplying the synthetic gas by the supplying controller. An FD fan(70; Forced Draft FAN) is set up in the front end line of the second gasification material inlet. An ID fan(60: Induced Draft FAN) is set up in the rear end line connected with the synthetic gas vent. The synthetic gas supplied to a gas engine by a supplying controller is temporary storage in a reservoir(51). A fuel supply portion is formed and the fuel is inpoured from the fuel supply portion in an introduction chamber.