Systems and methods for sealing a static or rotary tube to a rotary tube that is part of a thermal unit performing an airless or oxygen starved high-temperature incineration process like pyrolysis in such a way that the joining of the tubes does not interfere with the oxygen controlled processes within the rotating thermal unit tube. Embodiments comprise a seal comprising chambers for sealing material supported by rollers contacting flanges of rotating tube elements and suspended by gimbals to permit the seal to move in a transverse direction, to swing, and to rotate while maintaining the seal.

A method of conveying fuel, such as bulk material, into a gasification reactor that has a lateral infeed opening can be practiced with device for conveying fuels into a gasification reactor comprising a bulk material container,a conveying pipe, into which a discharge of the bulk material container opens and which can be connected to a lateral infeed opening of the gasification reactor, and a mechanical conveying apparatus disposed in the conveying pipe, the conveying apparatus is formed by a hydraulically drivable plunger, which is movably guided in a first, cylindrical section of the conveying pipe, and in that the conveying pipe has an internal cross-section which decreases continuously in the conveying direction of the fuel in order to form a compacting cone in a second axial section that is downstream of the first section, wherein the second section is configured as an exchangeable pipe portion with another exchangeable pipe portion.

A churning and stoking ram for a furnace is disclosed. The churning and stoking ram includes a frame disposed externally of the furnace, where the stoking ram is mounted on the frame. The stoking ram is positionable relative to the furnace between an external position and an internal position, and is rotatable about a central longitudinal axis of the stoking ram. The stoking ram further includes a churning device positionable relative to the stoking ram between a retracted position and an extended position, a first actuator mounted on the frame to position the stoking ram between the external and internal positions, a second actuator to position the churning device between the retracted and extended positions, and a third actuator to rotate the stoking ram and the churning device associated therewith.

A hydrolyzer infeed system for supplying waste material to a hydrolyzer in a continuous manner, the infeed system comprises an infeed chamber, an inlet gate separate a chamber inlet from a chamber outlet, a ram disposed to reciprocate within the infeed chamber and compress waste material against the inlet gate when the gate is in the closed position and configured to push the compressed waste material past the inlet gate into a hydrolyzer when the gate is in an open position, an actuator operably coupled to the ram and configured to move the ram between retracted and extended positions. In one aspect, the ram extends past the inlet gate when in an extended position. In another aspect, an actuator position sensor operably coupled to the actuator generates a position signal representative of a position of the actuator and a corresponding position of the ram at all positions between the retracted ram position and the extended ram position.

The invention relates to a device for producing methane gas including a chamber, means for conveying the product in the chamber which comprise a screw mounted to turn in the chamber along a geometric axis of rotation, Joule-effect heating means of the screw, a removal unit for removing impurities present in the gas coming from the thermal treatment of the product, said unit being connected to a high outlet of the chamber, and a purification system for purifying the gas at the outlet of the removal unit.

The invention relates to a cracking furnace containing a tubular vertical chamber which comprises an inlet for introducing a gas to be treated and an outlet for removing said gas from the chamber, means for heating said gas which include a heating tube extending vertically inside the chamber and coaxial with the chamber, the heating tube being shaped in such a way as to have a closed lower end and being arranged in such a way that the lower end thereof is arranged in the chamber and such that the upper end thereof is connected to a burner of the heating means arranged outside the chamber. The invention also relates to an assembly comprising such a cracking furnace and a device for thermal treatment of biomass and/or waste, an outlet of which is connected to the inlet of said cracking furnace.

A pyrolysis surface such as a rotating retort is provided by copper sheet supported by a nickel alloy framework. Pyrolysis is used to destroy calorific waste and/or to produce gas therefrom.

A garbage supply device, which supplies waste to a gasification furnace that gasifies waste, includes a casing, two feed screws provided in the casing, and a middle shaft that is provided between the two supply screws, has a plurality of protrusions, and is repeatedly rotated forward or backward.

A waste material supply device includes a hopper into which a waste material is supplied, a first rubbish supply apparatus having an inlet connected to an outlet of the hopper and a pusher configured to push out the waste material in a horizontal direction, a connecting chute having an upper portion connected to an outlet of the first rubbish supply apparatus to form a space extending upward and downward, and a second rubbish supply apparatus having an inlet connected to a lower portion of the connecting chute and a screw configured to convey the waste material in an axial direction according to rotation about an axis thereof, wherein the first rubbish supply apparatus has a plurality of pushers in a widthwise direction, and each of the pushers is able to be individually manipulated.

The present invention relates to a method for incineration of combustible waste during the manufacture of cement clinker where cement raw meal is preheated and calcined in a preheater (1) with a calciner (3), burned into clinker in a kiln (5) and cooled in a subsequent clinker cooler (7), in which method the waste is incinerated in a separate compartment (9) subject to simultaneous supply of hot air, the exhaust gases produced during the waste incineration process being vented to the preheater for heating the cement raw meal, and the slag generated during the waste incineration process being extracted from the compartment, the waste is introduced via a waste inlet (11) onto a supporting surface (21) incorporated in the compartment (9) and in that, during incineration, the waste is transported through the compartment to the outlet (23) of the compartment along a circular path, characterized in that the compartment (9) is arranged at a distance from said calciner (3) or a preheater tower by means of a material chute (40), said material chute (40) enters a downward sloping duct, said duct carries exit gas from said compartment (9) and non-combustible material from waste fuel firing in said compartment (9) down into the calciner or preheater tower.