摘要:
For use with a reheating furnace for reheating blooms for rolling, in which for charging the furnace with blooms a series of longitudinal moveable arms are provided, for each arm a arm supporting and lifting mechanism comprising two pair of freely rotatable hold down--counterbalancing guide rollers for engaging a tract provided on the arm, a freely rotatable support roller for supporting the arm during their movements, and a piston cylinder assembly for the arm connected to frames of the support roller for raising and lower the roller and hence the arm.
摘要:
An apparatus for manufacturing a multielement sintered material is provided, more particularly an appartus of the automated type which weighs and mixes predetermined amounts of powdery elements, molds the mixed elements and then sinters them.
摘要:
A roller tunnel kiln for firing a drying refractory material advanced along the refractory rotatable rollers includes an upper section comprising a prefiring zone, a firing zone, a first forced cooling zone, a natural cooling zone and a second forced cooling zone. Parallel to the upper section along the length thereof a drying zone is arranged provided with refractory rotatable rollers for advancing movement of the material to be dried. A distributional tunnel is mounted parallel to the drying zone and is connected with the prekiln zone or with the forced cooling zone so that hot gases mixed with cool ambient air are directed into the distributing tunnel provided with openings communicating the latter with the drying zone. The hot gases at drying temperatures are further directed into drying tunnel in the direction opposite to that of the material to be dried.
摘要:
A kiln includes a hollow elongated housing which has an inlet and an outlet spaced from each other defining between them the interior of the housing designed to receive through the inlet the items to be treated. The housing includes a number of sections operative for treating the items as they gradually pass through the sections towards the outlet with different respective treating regimes. The sections downstream of the housing are interconnected with the section upstream of the housing so as to recover the heated gas from the downstream sections and supply the same into the upstream section in predetermined quantities and at a predetermined temperature.
摘要:
Method and device to control the axial position of slabs emerging from a continuous casting machine, providing to control the axial position of the slab (24) in correspondence with the inlet to the first rolling stand and to act in feedback on means to modify the correct position of the axis (32) of the slab (24) in a position located between the first rolling stand and the foot rolls (26) of the ingot mold (13) from which the slab (24) emerges, wherein alignment means operating inside the furnace (15) are employed to induce a controlled lateral displacement governed by the control of the axial position of the slab (24).
摘要:
Heating and/or temperature-maintaining furnace (11) for slabs (35), which includes lateral intake (12a) and outlet (12b) roller conveyors the axis of which is at a right angle to the axis of movement of the slabs (35) within the furnace (11), the roller conveyors (12a-12b) consisting of a plurality of roller-bearing bogies (13) able to move at a right angle to the axis of the roller conveyors (12a-12b), the roller-bearing bogies (13) having a first maintenance/replacement position (13a) outside the furnace (11) and a second working position (13b) in which they cooperate with the inside of the furnace (11), means being also included for the movement of the slabs (35) in the furnace (11), the rollers (10) being supported at both their ends on the roller-bearing bogies (13) by supporting means (19) and being driven by appropriate motor means (21), the supporting means (19) and motor means (21) being located outside the furnace (11) when the roller-bearing bogies (13) is brought to its second working position (13b), the ends of the rollers (10) being accessible from outside the furnace (11), an insulated bottom (39) and insulated sidewalls (22) being included in the roller-bearing bogies (13) to protect the roller-supporting means (19) and the motor means (21) associated with the rollers (10).
摘要:
A roll system for a roller hearth furnace for thin slab casters is disclosed. The roll system includes a plurality of fluid cooled rolls rotatably mounted in the furnace configured to contact and at least partially support a charge transported along a pass line through the furnace. An upper surface of each of the fluid cooled rolls is positioned along the pass line. A plurality of dry rolls is rotatably positioned within the furnace wherein at least one dry roll is positioned between each pair of adjacent fluid rolls. The upper surface of each of the dry rolls is positioned below the pass line.
摘要:
A process is described according to which tiles are taken up from the oven in which they have been fired, are accelerated to space them from one another, and then are further accelerated and brought into alignment in a direction transverse to that of travel, and are finally discharged onto a terminal conveyor. The apparatus for carrying out the process comprises, in combination with each firing oven chamber and with a terminal conveyor, a first conveyor for taking up the tiles from the oven, a second conveyor for accelerating them, a third conveyor for ejecting the tiles onto the terminal conveyor, and means for aligning the tiles with respect to the direction of travel of this latter before they leave the ejecting conveyor. The speeds on the accelerating conveyor and on the ejecting conveyor for high speed ovens, are respectively 1.8 to 2.2 times and three to five times the linear speed of the tiles in the oven.