A device for heat treatment is provided. The device includes at least one processing chamber arranged in an elongated housing having a heating device and having a transport system for continuous transport of material to be treated through the processing chamber. The transport system has two parallel endless conveyor belts spaced from each other and a plurality of cylinders made of quartz glass that bridge the distance between the conveyor belts. The cylinders are supported on these belts and the material to be treated is supported on the cylinders for the heat treatment. The cylinders are designed as twin tubes, formed by two tubular compartments separated from each other by an intermediate partition. Each tubular compartment has a longitudinal axis and is connected rotation-free at its end with the conveyor belts.

A material processing system includes an oven that cooks or bakes, with electrical resistance, dough contained within containers. The oven can include a frame defining, devices mounted, in a preselected pattern, on the frame for a reciprocal movement in a vertical direction during use of the system, each device configured to connect voltage to a respective container so as to cook or bake the dough with the electrical resistance, and one or more powered members configured to move the devices in the vertical direction. Conveyors are also provided to convey a plurality of rows of containers with a plurality of containers in each row along a material conveyance path, the conveyors disposed in a series with each other and with the oven along the material conveyance path, one of the conveyors disposed within the oven so as to position a batch of the containers in an alignment with the devices.

A material processing system includes an oven that cooks or bakes, with electrical resistance, dough contained within containers. The oven can include a frame defining, devices mounted, in a preselected pattern, on the frame for a reciprocal movement in a vertical direction during use of the system, each device configured to connect voltage to a respective container so as to cook or bake the dough with the electrical resistance, and one or more powered members configured to move the devices in the vertical direction. Conveyors are also provided to convey a plurality of rows of containers with a plurality of containers in each row along a material conveyance path, the conveyors disposed in a series with each other and with the oven along the material conveyance path, one of the conveyors disposed within the oven so as to position a batch of the containers in an alignment with the devices.

A molten thermoplastic circulation system that is used in conjunction with thermoplastic melter kettles. The molten circulation system includes a vertical material transfer tube that is coupled to a melter kettle and includes an auger. The vertical material transfer tube is coupled to the top and bottom of a melter kettle so as to transfer molten thermoplastic between the bottom and top of the melter kettle. The vertical material transfer tube is at least partially surrounded by a heat chamber through which a heated fluid such as hot combustion gases or heated oil can flow. In use molten thermoplastic material that is heated at a higher temperature at the bottom of a melter kettle near the combustion chamber is transferred through the vertical material transfer tube to the top of the melter kettle to improve melting efficiency.

A molten thermoplastic circulation system that is used in conjunction with thermoplastic melter kettles. The molten circulation system includes a vertical material transfer tube that is coupled to a melter kettle and includes an auger. The vertical material transfer tube is coupled to the top and bottom of a melter kettle so as to transfer molten thermoplastic between the bottom and top of the melter kettle. The vertical material transfer tube is at least partially surrounded by a heat chamber through which a heated fluid such as hot combustion gases or heated oil can flow. In use molten thermoplastic material that is heated at a higher temperature at the bottom of a melter kettle near the combustion chamber is transferred through the vertical material transfer tube to the top of the melter kettle to improve melting efficiency.

The invention relates to a heat protection assembly (2, 30) for a charging installation (1) of a metallurgical reactor. In order to increase the lifetime of a heat protection shield in a charging installation of a metallurgical reactor, the assembly (2, 30) comprises a plurality of heat protection tiles (31.1, 31.2, 31.3, 31.4) disposed adjacent to each other along a surface The assembly further comprises a plurality of heat protection panels (10, 110), each panel (10, 110) comprising a common base plate (11, 111) to which a plurality of tiles (31.1, 31.2, 31.3, 31.4) are connected, which heat protection panels (10, 110) are configured to be mounted on the charging installation (1) adjacent to each other.

The invention relates to a heat protection assembly (2, 30) for a charging installation (1) of a metallurgical reactor. In order to increase the lifetime of a heat protection shield in a charging installation of a metallurgical reactor, the assembly (2, 30) comprises a plurality of heat protection tiles (31.1, 31.2, 31.3, 31.4) disposed adjacent to each other along a surface The assembly further comprises a plurality of heat protection panels (10, 110), each panel (10, 110) comprising a common base plate (11, 111) to which a plurality of tiles (31.1, 31.2, 31.3, 31.4) are connected, which heat protection panels (10, 110) are configured to be mounted on the charging installation (1) adjacent to each other.

A batch charge conveying system is provided for multiple electric induction furnaces where each one of the multiple furnaces has a separate charge conveying apparatus. An assembled batch charge is loaded on a single assembled batch charge transport apparatus that selectively delivers the assembled batch charge to a separate charge conveying apparatus associated with one of the multiple electric induction furnaces.

A batch charge conveying system is provided for multiple electric induction furnaces where each one of the multiple furnaces has a separate charge conveying apparatus. An assembled batch charge is loaded on a single assembled batch charge transport apparatus that selectively delivers the assembled batch charge to a separate charge conveying apparatus associated with one of the multiple electric induction furnaces.

A shell (10) acts as a transporting shoe for steel ingots, which are pushed through a preferably tubular induction furnace for inductive heating for the purpose of producing seamless tubes by the extrusion process. The shell (10) is formed in such a way that it partially reaches around the contour of the steel ingot to be heated. The shell is provided at one end leading in the pushing-through direction or transporting direction, with a shoulder (12), which extends at an angle to the transporting direction, against which the steel ingot rests in such a way that the pushed-through steel ingot takes the shell (10) along with it. A method for inductively heating steel ingots uses a shell (10) as described.