US2258481A - Metallurgical apparatus - Google Patents

Description

I J. o. BETTERTON ETAL 2,258,481

Oct. 7, 1941.

METALLURGICAL APPARATUS '4 Sheets-Sheet 1 Filed June 23, 1939 n ,m A mfl mrw V m m m 5 m Y Oct. 7, 1941. J. o. BETTERTVON ETAL 2,258,481 METALLURGICAL APPARATUS File d June 25, 1939 4 Sheets-Sheet 3 INVENTORS fine d Bella-[0n BY Carl 6411 Oct. 7, 1941..

J. O. BETTERTON ETAL METALLURGICAL APPARATUS Filed June 23, 1939 4 Sheets-Sheet 4 mvENToR J2me dfielferian BY (arl fiall Patented Oct. 7, 1941 Jesse 0. Better-ton, Woodbridge, N.

smelting and Refining Company, N. Y., a corporation of New Jersey Metuchen, and Carl Gall, J., assignors to American New York,

Application June 23, 1939, Serial No. 280,742

2 Claims. *(01. 221-85) line 1-1 of Fig. 6,1ooking in the direction of the The present invention relates to metallurgical apparatus, and more. particularly to metallurgical pumps which are adapted to deliver molten metal, such as lead, for. example, from a pool thereof to a refining environment for subjection to refining reactions.

More specifically, the present invention relates to a pump which is adapted to be submerged in a pool of molten lead contained in a cast iron metallurgical kettle for delivering the lead to a chlorine reaction chamber, or other environment, in which the lead is refined.

In view of the fact that thesemetallurgical kettles are of difierent sizes, and may contain difierent depths of metal, it is desirable to prois spanned'by a platform B on which is vide a pump which is adaptedv for universal use with any sizekettle or any depth of metal.

One of the objects of the present invention,

therefore, is to provide .a metallurgical pump which. is adjustable to any desired depth of metal bath.

A further object of the invention is to provide a simple mechanism for eil'ectingany desired vertical adjustment of the pump between wide limits.

Further objects and advantages of the present invention will become apparent as the descriptlon proceeds, and the features of novelty will be set forth in particularity in the appended claims.

The invention will be understood more readily from a consideration of the accompanying drawings, in which Fig. 1 represents a plan view of the improved apparatus, showing the apparatus mounted on a metallurgical kettle.

Fig. 2 represents a sectional elevation of the apparatus taken on the line 2--2 of Fig. 1.

Fig. 3 represents an enlarged fragmentary section'al elevation of the lower portion of the supporting mechanism of the pump.

Fig. 4 is a sectional plan view of the pumpadjusting mechanism, taken on the line 4--4 of Fig. 3.

Fig. 5 is a side'elevation of the upper portion of the apparatus, showing details of the adjusting means for the pump and mounting of the carrying means by which the apparatus may be transported between operative and inoperative stations, parts of the frame being shown in section.

Fig. 6 is a sectional elevation, taken on the line 6-6 of Fig. 5, looking in the direction of the arrows.

Fig. '7 is a sectional plan viewtaken on' the 55 arrows, the view showing enlarged details.

Fig. 8 is a sectional plan view of a fragment of the supporting frame and guide member, .the view being taken on the line. 8-4 of Fig. 5, looking in the direction of the arrows.

Fig. 9 is a fragmentary plan view of the pump sup-porting section of the platform upon which the pump structure is carried.

Referring more particularly to the drawings, a metallurgical kettle is indicated at A, which mounted the adjustable pump C of the present invention, together with its adjusting mechanism.

The platform comprises suitable longitudinal v channel members, suitsupport plates D I-beams and transverse ably secured together, which which form the floor of the platform, and divide the floor into sections.

Suitable upright and horizontal angle members along the sides of the platform form handand guardrails,qsuch structure being indicated generally atE.

The pump construction is mounted on the platform at one of the floor sections, which may be disposed preferably over the deepest part of the kettle. w

For this purpose, transverse channel members, such .as those indicated at Ill and I2, are supplemented by additional channel members i4 and I6, these channel members being secured to the lateral I-beams manner, as by angle plates indicated at 22, which plates are riveted or welded in position, thereby forminga very rigid reinforced supporting structure for the pump mechanism. Obviously the members of this frame may be welded together directly, either with or without the angle plates.

A plate 24 is riveted to the bottom of this resulting structure, this plate having a relatively large hole 26 therein for ready reception of the pump shaft and housing therefor. The floor plate of this particular platform section is omitted.

At each corner of this supporting structure there is provided avertical angle bar 28, and

,to the upper end of each pair of these bars there is secured. horizontal angle bars 30, 32 extending longitudinally of the platform structure, the angle bars 30, 32 being reinforced by riveting to the upstanding webs 34, 36 of the top angle bars 38, 40 of the platform frame and which form the hand-rails of the,p1atform.

The horizontal angle- bars 30, 32 are cut-away i8 and 20 in any suitable as is indicated at 42, 44 to form recesses for receiving vertical guide bars 48, 48, which in turn, are secured by countersunk bolts to plates 58, 52, which are shaped similar to each other. These plates 58, 52 are attached to the lifting bale 54, by which means the pump structure may be lifted and transported to other stations.

The junction between the bale 54 and the plates 58, 52 is effected by providing the ends of the bale with bifurcations, as are indicated by 58, 58 and passing bolts 88 and 82 through registering holes in the bale ends and the plates.

Positioned on the channel members I8 and I4 and suitably secured thereto is a boss 84, which is provided with a hole 88 extending through it, and it will be observed that the channel members I8 and I4 are spaced-apart a distance which corresponds approximately to the diameter of the hole 88, so that an adjusting screw 88 may pass freely therethrough.

This construction is repeated on the opposite side of the supporting frame with respect to the boss 18'and the spacing of the channels I2 and IS, a second adiustingscrew I2 being received therein through the hole I4 in the boss I8.

It will be seen from the drawings that the upper portion of the holes 88 and I4 are enlarged toreceive bushings I8 and I8, which are secured in positionby pins 88 and 82, and which are threaded internally to correspond to the threads 88, II of the screws 88, I2, these threads being shown as being right-hand threads.

From the drawings, it will be noted that each of these adjusting screws 88, I2 comprises a single screw shaft, which is formed into upper and lower section I3 and H8 by the right hand threads 89, II and by the left hand threads I I2, a portion 94 of the shafts intermediate the threaded portion being provided with a sliding keyway 92 for securing the pinions 84, 88 to the respective shafts for rotating the same, these pinions being positioned in similar split housings 88, 98, the sectionsof which are shown as being bolted together, as is indicated at 88, 98, and I 88, I88.

A casting I82 is provided to carry the pump housing. This casting will be referred to in greater detail hereinafter, but it will be noted at this point that it is provided with oppositely disposed flanges I84, I84, each of which has a hole therethrough, provided with an internally threaded liner I88, I88, which is held in place by dowel pins I88, and which receives the lefthand threads I I2, I I2 of the upper threaded portion I I8, I I8 of the adJustlng screws.

It will be noted that the threads I I2, II2 are left hand threads, whereas the threads 88, II are right hand threads, this arrangement providing double the amount of movement of the pump for each turn of the pinions 84, 88, than would be obtainable were all of the threads running in the same direction. The threads are all of equal pitch, on both screws. .The pinions 84, 88 and the corresponding shafts 88, 1.2 are maintained in proper relative position by snap rings III, III,

carried on collars II 8, H3 provided in the screw shafts 88, I2.

The pinions 84, 88 are rotated by worm pinions I I4, II4, which are of the same pitch, and which are enclosed in housings I I8, I I8, which housings are, as shown extensions of the gear housings 88, 98, there being one of the pinions II4 for each of the pinions 84, 88. A shaft II8 interconnects the pinions I I4 so as to cause simultaneous and equal 9 rotation thereof, each end of the shaft us being which connect the upper annular I22 part of the casting, which forms a seat for the operating motor I24, to the lower collar I28. This collar I28 has a hole through it to receive the operating shaft .I28 for the pump I29. A second collar k I38 is secured to the underside of collar I28, by

suitable securing means such as cap screws H32, I32, the housing I34 for the pump shaft I28 being welded to this collar as is indicated at I38. The cap screws I32 are accessible through openings I 33 in the shaft housing I38.

The collar I28 01 the casting I82 is provided with an internal upstanding annular boss I38, which has secured to it a top collar I48, which, with the boss I 38, forms the seat for a thrust bearing I82.

.A bushing I48 enclosing the pump shaft I 28 also is secured to the casting collar I28, forming a lining for the hole through this collar I28 and defining a bearing for the shaft I28. .A ring I 48, fitting on the end of the bearing I44, which is tapered, seats the inner ball race of the bearing I42, a seal I48 being provided to prevent ingress of dirt around the bearing. The seal I48 is held in position by the weight of a flexible chain coupling which includes bearing blocks I58 and I52, ilvl'gich are secured together by a flexible chain The motor I24 is supported laterally by the spring pressure exerted by the plates 58, 52.

- These plates are bolted to the outer annular rim I58 of casting I82, thereby forming a unitary lifting structure, the back of the plates being secured to the guide bars I48, I48, thereby guiding the pump for operation.

It will be noted from Fig. 6 that the pump shaft I28 is secured through a screw I5I to the lower block I58 of the flexible chain coupling, the upper block I52 of which coupling is keyed, as is indicated at I53 to a shaft section I55. This section I55 is keyed, as shown at I51 to a ribbed compression coupling I58 held in place by bolts I88, and which is keyed, as indicated at IN, to the motor shaft I83.

Also, it will be noted from Fig. 'Tthat the worm shaft I I8 is supported by bearing I82, I82, located in the pinion housings 88, 88, the shaft II8 being secured to the worm pinions II4 by means of suitable keys, such as that shown at I84 in Fig. 4.

What is claimed is:

1. Metallurgical apparatus comprising, in combination, a supporting frame adapted to span a metallurgical container adapted to contain a pool of molten metal, the supporting frame comprising longitudinal and transverse supporting beams, a plate mounted on the beams, the said plate having a relatively large opening therein, a carrying frame mounted on the supporting frame and extending into the said opening, the carrying frame defining a mounting for a driving motor, a driving motor on the said mounting, a driven shaft adapted to extend into the said container, a pump on the said shaft, the said pump being adapted to be submerged in the said pool of molten metal, adjusting screws for vertically moving the said carrier frame, each of the said screws having oppositely running threads with an intermediate unthreaded portion, means on-the carrying frame and on the supporting frame for mounting and guiding the screws, the said means being threaded internally to correspond with the threads of the screws, operating instrumentalities for the screws connected thereto at their unthreaded portion and adapted to adjust the screws entirely equally, and means for actuating the said operating instrumentalities to turn the said screws simultaneously and equally for effecting an invariably straight movement of the carrying frame and pump and enabling vertical adjustment of the pump into any one of a multiple of positions relative to the said container.

2. Metallurgical apparatus comprising the combination with a metallurgical container adapted to contain a pool of molten metal, of a pump adapted to be immersed in the said pool for delivering molten metal therefrom to a remote station, mounting means onthe container for mounting the pump, the said mounting means comprisinga supporting frame and a carrying frame mounted on the supporting frame and movable therewith, eluding a mounting for a driving motor, a driving motor on the said mounting, a shaft driven by the said motor, a pump on the shaft and operated thereby, screw devices for adiusting the carrying frame and pump to any desired depth relativ to the said container, the lateral movement of the carrying frame and pump during adjustment thereof, and mechanism for simultaneously and equally operating thesaid screw devices. I

I JESSE O. BE'I'IERTON.

CARL GALL.

the said carrying frame ina said devices preventing

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