摘要:
Provided is a heat treatment apparatus capable of being configured to be more compact. A heat treatment apparatus 1 includes a coolant passage defining body 42 to define a coolant passage 48 to supply a coolant to a workpiece 100. The coolant passage defining body 42 includes an upper member 50 and a lower member 40 as a plurality of coolant passage defining members, and is configured so that, by displacing these members 49 and 50 so as to approach each other along an up-down direction Z1 crossing a conveyance direction, the coolant passage 48 is defined in a state housing the workpiece 100. In addition , the coolant passage defining body is configured so that, by displacing the members 49 and 50 described above so as to separate from each other along the up-down direction Z1, the workpiece 100 is allowed to be let into and out of the coolant passage 48 along the conveyance direction A1.
摘要:
In prior art reheating furnaces, the products that are to be heated pass through, in sequence, a preheating zone and one or more heating or equalizing zones, in which the products are brought step-by-step to their end temperature that is determined for further processing. In order to reduce the residence time of the products in the furnace space, and thus minimize the risk of scale forming on the product surface, the preheating zone is, according to the invention, equipped at least in certain sections with oxygen-fuel burners which are designed such that the combustion gases issuing therefrom form a flame that, in operation of the device, reaches the surface of the products. Direct flame impingement increases the effectiveness of the heat transfer, and thus reduces the residence time of the products.
摘要:
An apparatus (1) for adjusting the heat exchange, comprising shielding means (10) intended to be arranged facing at least one portion of a heat exchanger (2), and provided with at least one screen (11) movable between a position of maximum covering (C) of the heat exchanger (2) and an exposure position, in which the heat exchanger (2) is left at least partially uncovered by the screen (11).
摘要:
An annealing furnace for annealing a strand of steel. The annealing furnace including a first heating apparatus for heating the strand during operation of the annealing furnace. A transport device advances the strand in a direction of transport through the annealing furnace during operation of the annealing furnace. The annealing furnace also includes a first cooling device for cooling the outer surface of the strand with a gas guide in the direction of transport behind the first heater, wherein the gas guide is arranged in such a manner that a gas flows along the outer surface of the strand during operation of the annealing furnace for cooling the strand.
摘要:
The invention relates to an industrial furnace comprising a heatable interior chamber (1), a housing (2) enclosing the interior chamber (1), an insulating layer (3) which is at least partially lining the inner side of the housing (2), and thermal input means (4) for introducing thermal energy into the interior chamber (1). With respect to an energy-efficient operation, said industrial furnace is characterized by an insulating sleeve (7), which at least partially surrounds the housing (2) and is located at a distance from the housing wall, wherein a convection chamber (8) is formed between the housing wall and the insulating sleeve (2), and/or by a pre-heating and/or tempering furnace (10) in which the waste heat of the interior chamber (1) can be used. The invention further relates to a method for operating an industrial furnace.
摘要:
L'invention concerne un four tunnel (1) comportant une chambre de cuisson (2) comprenant successivement une zone d'entrée (3) de produits (4) à cuire, une zone de préchauffage (5) des produits, une zone de cuisson (6) équipée d'une source de chaleur formée par exemple par une pluralité de brûleurs, une zone de refroidissement (7) et une zone de sortie (8) des produits, le four tunnel (1) comportant en outre des moyens de transport conçus pour transporter les produits à cuire (4) de la zone d'entrée (3) à la zone de sortie (8) de la chambre de cuisson (2), ainsi que des moyens de ventilation de la chambre de cuisson (2) générant un flux d'air à contre-courant du sens de déplacement des produits. La chambre de cuisson (2) est équipée d'au moins un canal de dérivation (13), disposé au niveau de la zone de cuisson (6), apte à dériver hors de la zone de cuisson (6) au moins une partie de l'air et/ou des fumées circulant dans la chambre de cuisson (2).
摘要:
A continuous furnace for baking ceramic moulded parts has a heating area (14), a baking area (16) and a cooling area (18). At least one smoke gas duct (22) extends from the heating area (14) into a combustion chamber (24) and at least one hot air duct (28) leads back from the combustion chamber (24) to the heating area (14). Hot air loaded with binder fractions is extracted from the heating area at one or several spots. The combustion gasses are then led into a combustion chamber where they are burned, so that a largely purified hot air may then be led back to the heating area.