Patent ID: 6749816
Filing Date: 2004-06-15
Classification: B01J

Abstract:
A pressure treatment apparatus for processing a solid waste, comprising:an exterior vessel; a pressure reactor installed inside the exterior vessel with a gap therebetween; means for feeding a solid waste by using gravity into the pressure reactor, the means for feeding the solid waste comprising: primary crushing means for crushing the solid waste, a first solid reservoir for receiving primary crushed solid waste and a second solid reservoir which is connected to the first solid reservoir through a first connecting pipe and connected to the pressure reactor through a second connecting pipe, wherein the first connecting pipe provides a first sealing unit and the second connecting pipe provides a second sealing unit, wherein at least the first sealing unit, the first connecting pipe, which is downstream from the first sealing unit, the second solid reservoir, the second connecting pipe, the second sealing unit, and the pressure reactor have a pressure resistant structure; a pressure fluid feeder for feeding a first pressure fluid into the second solid reservoir and a second pressure fluid into the second connecting pipe between the second sealing unit and the pressure reactor; means for feeding a reaction medium into the pressure reactor; means for feeding a third pressure fluid into the gap; and means for controlling pressure of the first, second, and third pressure fluids and a pressure within the pressure reactor such that the pressure of the first pressure fluid is higher than the pressure of the second pressure fluid, the pressure of the second pressure fluid is higher than the pressure within the pressure reactor and the pressure of the third pressure fluid is higher than the pressure within the pressure reactor, wherein the exterior vessel is isolated from the solid waste and the reaction medium.