摘要:
A distribution device for distributing bulk material with a distribution spout on a cardan suspension that has a first and a second gimbal member pivotable about two perpendicular suspension axes where a drive arrangement has a first and a second transmission mechanism for controlling pivotal motion of the distribution spout about the suspension axes and the drive arrangement has a further cardan joint, with a first part pivotable about a third axis and a second part pivotable about a fourth axis, and a rotary motor for driving a rotary drive shaft that is connected to the cardan joint by means of an articulated connecting arm such that the rotational position and the axial position of the drive shaft determine the pivotal position of the second part about the third and fourth axes respectively, where the transmission mechanisms transmit torque about the third and fourth axes from the cardan joint to the cardan suspension for pivoting the distribution spout about the first and second axes respectively.
摘要:
A distribution device for distributing bulk material with a distribution spout on a cardan suspension that has a first and a second gimbal member pivotable about two perpendicular suspension axes where a drive arrangement has a first and a second transmission mechanism for controlling pivotal motion of the distribution spout about the suspension axes, and the drive arrangement has a further cardan joint, with a first part pivotable about a third axis and a second part pivotable about a fourth axis, and a rotary motor for driving a rotary drive shaft that is connected to the cardan joint by means of an articulated connecting arm such that the rotational position and the axial position of the drive shaft determine the pivotal position of the second part about the third and fourth axes respectively, where the transmission mechanisms transmit torque about the third and fourth axes from the cardan joint to the cardan suspension for pivoting the distribution spout about the first and second axes respectively.
摘要:
A three hopper charging installation for a shaft furnace includes a rotary distribution device for distributing bulk material in the furnace by rotating a distribution member about the furnace central axis and a first, a second and a third hopper arranged in parallel above the rotary distribution device and offset from the central axis. A sealing valve housing is arranged between the hoppers and the distribution device. It has a top part with a first, a second and a third inlet respectively communicating with the first, the second and the third hopper. A first, a second and a third sealing valve are provided in the top part. Each sealing valve includes a flap which is pivotable between a closed sealing position and an open parking position. The sealing valve housing also has a funnel shaped bottom part with an outlet communicating with the distribution device. According to the invention, the top part of the sealing valve housing has a tripartite stellate configuration in horizontal section with a central portion, in which the inlets are arranged adjacently in triangular relationship about the central axis, and with a first, a second and a third extension portion, each sealing valve being adapted such that its flap opens outwardly with respect to the central axis by pivoting into a parking position located in the first, second or third extension portion respectively.
摘要:
A device for distributing loose materials, arranged in a curtain of loose material tipped out from a means of conveying loose material includes a box with a top opening, at least one wall which extends transverse to the curtain of material inside the box to subdivide the box into at least two compartments, and at least two tipping-out means, one of the tipping-out means being associated with each of the compartments of the box, the tipping-out means being directed in such a way as to deflect the material received in the respective compartments into a distinct region of the hopper. The method for loading a hopper includes tipping loose material out in the form of a curtain of material over the hopper and splitting the curtain into at least two partial streams so as to deflect each of the partial streams towards a distinct region of the hopper.
摘要:
A device for direct observation of the charging process inside a shaft furnace during its operation, in particular a blast furnace, with a measuring lance, which is arranged above the charge column in the shaft furnace in such a way that it is exposed to the charge material falling from a charging device during the charging process, and sensor means which detect the position of the falling charge material in relation to the measuring lance.
摘要:
A charging device for a shaft furnace with a lower bell comprises lower means of blockage allowing an upper hopper to be isolated in a sealed manner from a lower hopper and allowing the retention of the charging material. In their open position, these lower means of blockage are positioned so that they unblock a free central passage for the flux of material. This flux is established in the form of a compact and focused flux. Means for moving the lower bell are positioned so as not to disturb the focusing of this flux. Positioned above the lower bell is a deflecting surface, which causes the focused flux to diverge with axial symmetry. Inter alia, a better symmetry in the filling of the lower hopper is obtained.
摘要:
A method and apparatus for controlling the movement of an oscillating spout is presented wherein uneven distribution of spout discharge material is eliminated or at least substantially reduced by a compensating action of varying the angular speed of rotation of the spout in accordance with the angular position of the spout. The present invention is particularly suited for use in conjunction with a charging installation of a shaft furnace, particularly those charging devices having a spout with a cardan suspension system.
摘要:
A charging device (10; 10′; 10″) for a shaft furnace comprises a distribution chute (20; 20′; 20″; 20′″), which is supported rotatable about an essentially vertical axis of rotation (A), and a variable-speed drive (26) connected to the distribution chute. The variable-speed drive is configured to rotate the distribution chute for circumferential distribution of bulk material on a charging surface of the shaft furnace. According to the invention, the distribution chute comprises multiple chute sections (32, 34, 36, 38) that are interlinked by articulations so as to be capable of forming a curved channel for radial distribution of bulk material on the charging surface, the degree of curvature of said channel being variable in function of the speed of rotation (ω) of the distribution chute.
摘要:
A three hopper charging installation for a shaft furnace includes a rotary distribution device for distributing bulk material in the furnace by rotating a distribution member about the furnace central axis and a first, a second and a third hopper arranged in parallel above the rotary distribution device and offset from the central axis. A sealing valve housing is arranged between the hoppers and the distribution device. It has a top part with a first, a second and a third inlet respectively communicating with the first, the second and the third hopper. A first, a second and a third sealing valve are provided in the top part. Each sealing valve includes a flap which is pivotable between a closed sealing position and an open parking position. The sealing valve housing also has a funnel shaped bottom part with an outlet communicating with the distribution device. According to the invention, the top part of the sealing valve housing has a tripartite stellate configuration in horizontal section with a central portion, in which the inlets are arranged adjacently in triangular relationship about the central axis, and with a first, a second and a third extension portion, each sealing valve being adapted such that its flap opens outwardly with respect to the central axis by pivoting into a parking position located in the first, second or third extension portion respectively.
摘要:
A rotary charging device for a shaft furnace, in particular a blast furnace, is disclosed. The charging device is equipped with a cooling system. The rotary charging device includes a rotatable support for rotary distribution means as well as a stationary housing for the rotatable support. The cooling system includes a rotary cooling circuit fixed in rotation with the rotatable support as well as a stationary cooling circuit on the stationary housing. A heat transfer device is provided which includes a stationary heat transfer element configured to be cooled by a cooling fluid flowing through the stationary cooling circuit and which includes a rotary heat transfer element configured to be heated by a separate cooling fluid circulated in the rotary cooling circuit. These heat transfer elements are arranged in facing relationship and have there between a heat transfer region for achieving heat transfer by convection and/or radiation through the heat transfer region without mixing of the separate cooling fluids of the rotary and stationary cooling circuits.