F27D13/00

Steel sheet heating method and steel sheet heating apparatus

A steel sheet heating method that heats a steel sheet (K) to be pressed before hot press molding includes: bringing the steel sheet into a heating furnace (10) including a heater (15) on an inside surface of the heating furnace in a state where the steel sheet is supported in a vertical direction while an unnecessary portion of the steel sheet that becomes unnecessary after molding is fixedly supported by a support member (30); and performing heating at a prescribed temperature in the heating furnace, then taking the steel sheet out of the heating furnace, and after that cutting and removing the unnecessary portion before hot press molding or during hot press molding.

Steel sheet heating method and steel sheet heating apparatus

A steel sheet heating method that heats a steel sheet (K) to be pressed before hot press molding includes: bringing the steel sheet into a heating furnace (10) including a heater (15) on an inside surface of the heating furnace in a state where the steel sheet is supported in a vertical direction while an unnecessary portion of the steel sheet that becomes unnecessary after molding is fixedly supported by a support member (30); and performing heating at a prescribed temperature in the heating furnace, then taking the steel sheet out of the heating furnace, and after that cutting and removing the unnecessary portion before hot press molding or during hot press molding.

System and method for the production of hot briquetted iron (HBI) containing flux and/or carbonaceous material at a direct reduction plant

A process for producing hot briquetted iron with increased solid carbonaceous material and/or flux includes: providing a shaft furnace of a direct reduction plant to reduce iron oxide with reducing gas; providing a hot briquette machine to produce hot briquetted iron; coupling a chute between a) a discharge exit of the shaft furnace for discharge of hot direct reduced iron and b) an entrance of the hot briquette machine; adding solid carbonaceous material and/or flux to the discharged hot direct reduced iron from the shaft furnace to produce a mixture of the discharged hot direct reduced iron and the solid carbonaceous material and/or flux before feeding to the hot briquette machine; and processing in the hot briquette machine to produce a product of hot briquetted iron with increased solid carbonaceous material content greater than about 3 weight percent and/or an increased flux content.

System and method for the production of hot briquetted iron (HBI) containing flux and/or carbonaceous material at a direct reduction plant

A process for producing hot briquetted iron with increased solid carbonaceous material and/or flux includes: providing a shaft furnace of a direct reduction plant to reduce iron oxide with reducing gas; providing a hot briquette machine to produce hot briquetted iron; coupling a chute between a) a discharge exit of the shaft furnace for discharge of hot direct reduced iron and b) an entrance of the hot briquette machine; adding solid carbonaceous material and/or flux to the discharged hot direct reduced iron from the shaft furnace to produce a mixture of the discharged hot direct reduced iron and the solid carbonaceous material and/or flux before feeding to the hot briquette machine; and processing in the hot briquette machine to produce a product of hot briquetted iron with increased solid carbonaceous material content greater than about 3 weight percent and/or an increased flux content.

System and method for recycling asphalt using induction heating
10294616 · 2019-05-21 ·

An asphalt processing system is formed from a heating chamber, a transfer system and an induction heating system. A plurality of paddles, conveyor flights, or conveyor belts having a U-shaped blade move the asphalt through the system while concurrently mixing the material to ensure consistent temperatures through the asphalt cement. The asphalt is heating using one or more induction heating systems to quickly heat the asphalt to between 300 F. and 350 F. The system can include a convection system designed to collect air from the heating chamber, further heat it, and recirculate the air to enhance the asphalt heating. A water condenser can be employed to remove moisture during air recirculation, reducing moisture content in the asphalt cement. The asphalt cement is optionally then modified by addition of one or more rejuvenation oils. This system is particularly useful for recycled asphalt pavement, but can be used for all asphalt products.

Thermal reduction apparatus for metal production, gate device, condensing system, and control method thereof

Disclosed is a thermal reduction apparatus. The thermal reduction apparatus according to the exemplary embodiment includes: a preheating unit which preheats a to-be-reduced material and loads the to-be-reduced material into a reducing unit; the reducing unit which is connected to the preheating unit and in which a thermal reduction reaction of the to-be-reduced material occurs; a cooling unit which is connected to the reducing unit and from which the to-be-reduced material flowing into the cooling unit is unloaded to the outside; a gate device which is installed between the preheating unit and the reducing unit; a gate device which is installed between the reducing unit and the cooling unit; a condensing device which is connected to the reducing unit and condenses a metal vapor; a first blocking unit which is installed in the reducing unit; and a second blocking unit which is installed in the reducing unit so as to be spaced apart from the first blocking unit.

Method for managing the charge in a melting furnace and corresponding loading apparatus
10234204 · 2019-03-19 ·

Method for managing the metal charge in a melting furnace includes at least a step of depositing metal materials to be melted in a storage zone, a step of picking up and loading the metal materials from the storage zone onto feeding device by loading device, and a feed step in which the feeding device feeds the materials toward the melting furnace. The deposit step provides to divide the storage zone into a plurality of specialized areas in each of which a differentiated type of the metal materials is deposited, and during the pick-up and loading step, a processing device controls and commands the actuation of the feeding device which picks up the types of materials from the specialized areas and load them onto the feeding device according to a desired modality and quantity.

Scrap dryer and/or scrap preheater

A device (1) for drying and/or preheating metallic and/or non-metallic materials, preferably scrap, comprises a receiving container (3) and a scrap basket (7) which is arranged in the receiving container (3) and has a gas-permeable bottom area (9). The receiving container (3) has at least one process gas inlet line (6) in its wall (4), via which a process gas with a temperature in the range from 200 to 1600? C. can be introduced into the receiving container (3), and at least an injector nozzle (19) arranged coaxially within the at least one process gas inlet line (6) via which a cooling gas can be introduced into the process gas.

Plastic preheating arrangement for a plastic welding device, a plastic welding device as well as a preheating method for a component

The plastic preheating arrangement for a plastic welding device comprises a support, at least one first preheating device and a pivoting arrangement with which the at least one first preheating device can be pivoted relative to a first surface of the support from a starting position into a preheating position. In this manner, an undercut of a first component can be circumnavigated and the first component can be heated by means of the first preheating device.

Plastic preheating arrangement for a plastic welding device, a plastic welding device as well as a preheating method for a component

The plastic preheating arrangement for a plastic welding device comprises a support, at least one first preheating device and a pivoting arrangement with which the at least one first preheating device can be pivoted relative to a first surface of the support from a starting position into a preheating position. In this manner, an undercut of a first component can be circumnavigated and the first component can be heated by means of the first preheating device.