| OCR Text |
Show 5 exhaust passing through section E is then introduced to section F, the high temperature combustion section, is m a d e of insulating material in which the destruction is taken place with little supplement fuel. The combustion chamber is able to operate up to 1,000°C and the gas hold-up time is designed in a range of 0.5 to 2 seconds. During a destruction of process exhaust is taken place, the access stream of upward process exhaust or downward combustion exhaust is not fixed always but takes a switch as section B is rotating, that lessens channelling effect and could enhance combustion efficiency. As combustion exhaust begins downward after combustion, liberate heats in section E and pass through section D and C to enter sub-section B-c which is the only portion of section B designed to access to section A, and is finally induced to the stack. The streams of process exhaust inlet and combustion exhaust outlet occurring in section B is alternatively changed as section B is rotating, in that both upward and downward access mentioned above are switched simultaneously. In this manner, a maximized heat recovery and minimized pressure drop is maintained without the use of a variable frequency. As a switch of the inlet stream occurs in section B, a portion of combustion exhaust at the stack is alternatively introduced, through the bottom of hollow shaft at section A, to purge out organic matters remaining in the equipment. Iffl.t rt- - 4 - A - =?=^t - ilf ££ft m, <; 1^,. A. i .- II foV ra wij '\^;" Fig.2 A design sketch of rotary combustion system |
