摘要:
Lubrication for a rotary shaft positioned within the upper region of a blast furnace is accomplished by mounting a mechanically actuated pump for rotation with a reduction gear box through which the rotatable shaft is driven. The pump is periodically operated by means of an adjustable cam plate mounted on a sector gear which is affixed to the rotatable shaft; torque being transmitted to the shaft via the sector gear which is driven by a pinion coupled to the reduction gearing.
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 distributor chute for bulk material, in particular for use in a bell-less blast furnace top charging device, has several inclined transverse plates in the region of its impact zone. The transverse plates create retaining pockets between their inner faces and the surface of the distributor chute. Two adjacent transverse plates limit between the outer face of the first transverse plate and the inner face or the second transverse plate a retaining chamber. If the inclination of the chute is reduced, the bulk material moves from the retaining pocket to the retaining chamber.
摘要:
An apparatus for driving an oscillating spout capable of pivoting about two orthogonal axes under the action of a pivoting control arm having the same degrees of liberties as the spout is presented. The driving apparatus includes a control mechanism which directs the control arm to perform the movement required by the spout and a transmission device which acts to transmit the control arm movement to the spout to reproduce it as spout movement, and vice versa. The apparatus further includes a rotary internal housing supported on a support frame via a bearing member and enclosed by an outer housing or cowl. The rotary housing is associated with a toothed rim which is actuated by a first motor fixed to or adjacent to the support frame. A control mechanism is also provided which includes a driving rod which is coaxial with the rotary internal housing and which is capable of sliding in the axial direction. The control mechanism is associated with a second motor which is also adjacent to or fixed to the support frame. A pivotal connecting means consisting of a central body and two diametrically opposed pivots is mounted on the lower end of the driving rod via one or more bearings in such a way so as to be freely rotatable in relation to the rod (and in conjunction with the rotary housing) but integral therewith with regard to vertical or axial movement. The pivotal connecting means is associated with the rotary housing such that a high rate of rotation may be transferred thereto.
摘要:
The invention relates to a device for distributing a material in a molten state, said device comprising a swinging chute (16) supported so as to be capable of swinging about a substantially horizontal swinging axis (25), and a driving group (40). The latter comprises gear motor group (42), a drum winch (44) driven by the gear motor group (42), and at least one cable segment (50, 50′) that can be both wound on or unwound from said drum. One end of the cable segment (46, 50, 50′) is attached to the swinging chute (16) at a distance L from the swinging axis (25) thereof so as to apply a swinging momentum to said swinging chute (16).
摘要:
A charging device for a shaft furnace, which includes at least one charging hopper having a discharge orifice arranged in a position off-centre with respect to the central axis of the shaft furnace, and a material distribution device arranged below this hopper. The material distribution device includes a feed channel coaxial with the central axis of the furnace and a rotatable, pivotable chute, which is arranged below the feed channel for distributing a charge in the shaft furnace. The charging device also includes a connecting box in the shape of a funnel, arranged between the material distribution device and the charging hopper. The connecting box possesses a lower central outlet communicating with the charging hopper and at least one upper inlet which is arranged off-centre with respect to the central axis of the furnace and communicates with the discharge orifice of the hopper. According to the invention, the charging device includes at least one spreader situated upstream of the distribution device, on the trajectory of the material discharged from the discharge orifice. The spreader enables a flow of material to be dispersed to both sides of the feed channel.
摘要:
A device for distributing materials in bulk includes a suspension rotor and a chute located below the suspension rotor. The chute is provided with two lateral suspension arms which are connected to the suspension rotor. A driving mechanism produces a pivoting torque capable of pivoting the chute, while a cylindrical suspension pin is associated with each suspension arm for pivotably connecting it to the suspension rotor. A control lever is connected to the suspension rotor, the driving mechanism being connected to the control lever so as to transmit to the latter the pivoting torque. A stop on the control lever and a counterstop on a suspension arm engage with each other to transmit the pivoting torque to the suspension arm. The stop and the counterstop are disengagable by a translation movement of the two suspension arms after withdrawal of the cylindrical suspension pins for removal of the chute.
摘要:
A gastight isolation valve for solid materials is presented. The body of the valve has a lower edge which, defines, in the leaktight closed position, an air seal. The air seal is surrounded by a projecting element of the closure member which comprises, on the outer side, an outer peripheral flank having a first gradient. A peripheral sealing surface extends the outer peripheral flank. The sealing surface interacts with a sealing seat of the valve body to provide gastightness.
摘要:
A charging device is provided for feeding an enclosure with a predetermined flow rate of a solid material. The device comprises a materials hopper, a pipe for feeding the enclosure, and a member for retaining and for regulating the flow rate of material. The member for retaining and for regulating the flow rate of material comprises a bell for closing off a discharge opening, and a central metering body which is oblong and distinctly more slender than the bell. The bell and the central metering body can be moved relative to one another so that the distance which separates the two of them can be freely adjusted.
摘要:
A device for distributing bulk materials includes a suspension rotor is mounted in a support frame which is capable of rotating about a substantially vertical axis of rotation. A chute is suspended to the suspension rotor and is tiltable about a substantially horizontal tilt axis. A first motor is capable of rotating the suspension rotor about its axis of rotation in a first direction, and a tilt controlling motor mounted in the support frame is capable of rotating about a substantially vertical axis of rotation. A tilting mechanism is also connected between the chute and the tilt controlling rotor, while a first braking device exerts a braking moment on the tilt controlling motor. A first control device controls the angle of inclination of the chute by controlled braking of the tilt controlling rotor.