US1806438A - Charge car for sintering apparatus - Google Patents

Description

y 1931. T. M. ALEXOVITS 1,806,438

CHARGE CAR FOR SINTERING APPARATUS Filed April 50, 1929 4 Sheets-Sheet 1 [AA/ENTOR! HOMALfi M. ALfXO W715 Arron/v5).

May 19, 1931. T. M. ALEXOVITS' 1,305,438

CHARGE CAR FOR SINTERING APPARATUS Filed April 50. 1929 4 Sheets-Sheet 2 THOMAS M- ALEXOVHZS.

BY W QTToRA/E May 19, 1931. T. M. ALEXOVITS CHARGE CAR FOR SINTERING APPARATUS Filed April 30, 1929 4 Sheets-Shee t 3 THOMA5 M ALEXOV/Tj 5 W QTTORNEY.

villi!!! y 31- T. M. ALEXOVITS 1,806,438

CHARGE CAR FORSINTERING APPARATUS Filed April 30, 1929 4 Shee ts-Sheet 4 VIIIIIIIII hvvmvron:

' THOMAS M. ALfXOV/Z:

RT To e/vcr Patented May 19, 1931 PATENT OFFICE THOMAS M. ALEXOVITS, OF BAYONNE, JERSEY, ASSIGNOR 'ID -TOHN E. GREENL- WALT, 01 NEW YORK, N. Y.

CHARGE CAR FOR SINTEB-ING APPARATUS Application filed April 30,

My invention has relation to improvements in traveling ho pers, or charge cars, especially adapted for ceding material into the holder or pan of a sintering apparatus for the purpose of sintering the same. The invention is particularly directed to the mechanism. for discharging the material from the hopper in a regulated stream, whereby the flow of matgrial may be maintained uniform and stea y.

In the sintering of ores, flue dust, or kindred materials, it is important that the charge be of substantially uniform porosity and maintained in a fluffy condition, that is, the packing of material in the holder must be avoided if the best sintering results are to be obtained.

It is therefore one of the objects of the present invention to provide a charge car that will feed the material to the holder in a flufly condition; one that will feed the material in a stead stream of uniform thickness; one in whic the thickness of this stream may be regulated; one in which the flow of material may be proportioned to the speed of the car, so that the car may be charged level without the use of an evener; one that will charge the car with its to surface in a smooth level plane; one in w ich the gate controlling the flow of material is automatically operated to both open and close at predetermined points; one in which the material, after leaving the hopper, is agitated for the purpose of separating coherent particles, thus insuring a loose or flufi'y condition of the charge and eliminating lumps therefrom; one that is simple to operate and has a minimum number of controls; and one possessing other and further advantages which will be better apparent from a detailed description of the invention in connection with the accompanying drawings in which: I

Figure 1 is top plan of my improved charge car with parts broken away; Fig. 2 is an elevation of thecharge car looking at the side on which is mounted the mechanism for controlling the discharge of material therefrom; Fig. 3 is a front elevation of the side of the charge car on which is mounted the mechanism for controlling the discharge of maear travels over it. of hopper H and the forward wall 11' of 1929. Serial No. 359,372.

terial; Fig. .4 is an enlar ed view of the automatic control lever an cam rail which actuates the discharge mechanism; Fig. 5 is aside elevation of the cam rail and lower part of the control lever shown in Fig. 4;

ig. 6 isa middle longitudinal section through the car taken on the line 6-6 of Fig. 1, the upper part of the hoppers being broken away; Fig. 7 is a detached view of a Y portion of the agitator, or roller, that operates to divide or flufi' the material as it leaves the hopper; Fig. 8 is a sectional detail of the adjustable plate for regulating the size of the hopper opening; Fig. 9 is a sectional outline on a reduced scale of the lower part of the charge car showing the charging mechanism in operation for the feeding of the material into the sintering pan; Fig. 10 is an enlarged sectional detail of the driving mechanism for the breaker roller; Fig. 11 is an enlarged sectional detail of the gear arms and gear for driving the feed roller; Figs. 12 and 13 are fragmentary side elevation and end view respectively of a modified form of the invention in which the cam rollers are coupled together for joint shifting.

Referring to the drawings C represents my improved charge car comprising an underframe 1 mounted on wheels 2, 2 which are j ournaled on axles 3, 3, supported in the boxes 4, 4' fixed to the under side of frame 1. The car is adapted to be propelled on the rails 5, 5 by an electric motor 6, the shaft 7 of which is connected to a suitable reducing gear 8 and carries a pinion 9 on its outer end. The pinion meshes with a gear 10 mounted on the end of axle shaft 3. Therefore, when the motor 6 is put into operation, the charge car will be put into motion.

The charge, car is provided with hoppers H, H, the former being adapted to hold the more finely crushed material m, and the latter the coarser m, which is discharged into the sintering pan P (Fig. 9) as the charge The forward wall 11 hopper H terminate above the lower edge of rear walls 12, 12 of said hoppers respectively, thus providing mouths 13, 13' at the bottom of the respective hoppers; An ad- 'usting plate 14 is mounted on suitable angle rackets 15, 15 aflixed to the bottom of each hopper wall 11, 11 for the purpose of regulating the height of the discharge openings or mouths of, the hoppers. Each plate is secured to the brackets 15, 15 by bolts 16, 16 which traverse slots 17, 17 in the plate, and studs 18 traverse a flange 19 provided at the upper edge of the plate 14, said studs also traversing openings in the bracket 29 affixed to the forward wall of the hopper. Obvious- I 1y, by loosening bolts 16, 16 and screwingthe stud 18 either up or down, the plate 14 may be adjusted so as to either enlargeor decrease the space 8 between the bottom edge of said plate and a feed roller 21 mounted on shaft 22 supported in the bearings 23, 23 on the frame 1. By referring to Fig. 6 it will be seen that the feed roller 21 closes the bottom of the hopper so that the actual discharge mouth .9 is the predetermined opening between the lower edge of plate 14-and roller 21.

One end of the shaft 22 projects beyond the adjacent bearing 23 and has a pinion 24 mounted on it between a pair of gear arms 25, 25, which are "rotatably mounted at their hubs 26, 26 on shaft 22. The short lever arms 25', 25 of gear levers 25, 25 receive between them an operating lever 27 and the long lever arms 25", 25" are each provided with an opening 28 toreceive a journal box 29. A short shaft 30 is journaled in boxes 29, 29 and has a gear 31 mounted on it, said gear being permanently in mesh with the pinion 24. The lower end 27' of lever 27 is offset and terminates in a socket 32 for receiving a pin 33 on the outer end of which is rotatably mounted a roller 34, having a projecting hub 35 provided with an annular groove 36 which receives a sleeve 37 having oppositely projecting studs 38, 38' for connection with the lower bifurcated end 39" of a shift lever 39 pivotally mounted on the actuating arm 27 adjacent to the'ofi'set 27 thereof. The lever arm. 39 terminates at its upper end in the laterally projecting handle 40 and pivotally mounted on the lever immediately eyond the handle 40 is a latch 41 having oppositely disposed notches 42', 42, one of which may be caused to engage a'pin 43 projecting from the side of the arm to lock the lever 39 in its operative position (as shown in Fig. 3). I

The upperend of the actuating arm 27'is pivotally connected at 44 to the free end of a gate lever 45 fixed to one end of shaft 46, upon which is mounted a'structural steel element 47 having a plate 48 over its outer end which is adapted to come to rest in front of the mouth 8 of the hopper H. The member 748 thus serves as a shut-off gate for the hopper. A counter-weight arm 49 is fixed at each side of ga'te47 and projects beyond the shaft 46 asufl icient distance so that the counter-weights 50, 50, which are adjustably mounted on the end of the arms 49, 49, may serve to counter balance the gate.

Brackets 51, 51 are supported from side vertical frame members 52, 52 of hoppers H, H and levers 53, 53 are pivotally connected to the brackets 51, 51 and have a plate 54 secured to their lower ends so as to prevent undue spreading of the material that is discharged from the mouth of hopper H, and may be termed a drag plate. The position of the plate 54 is such that it will bear lightly on the surface of the material discharging over the drum, or roller, 21 and can bestbe determined by experiment so as to give just the right amount of pressure to hold back the material passing over the roll 21-until it reaches an angle where it will discharge in a steady stream. ere it not for this plate '54, the material, when fed in a thickness of three inches more or less, would be liable to slide from a line fairly high on the roll and stick causing it to feed in lumps.

An agitator, or breaker roll, 55 is mounted on a shaft 56 journaled in bearings 57, 57

supported from the frame 1 in a position with respect to the feed roll 21 that the stream of material passing over the feed roll will fall on the breaker roll 55 slightly in back of its center. The breaker roll 55 is rotated in the direction of the arrow (Fig. 9) by sprocket connections with forward wheel 2 as follows:

A clutch disc 58 is secured to the forward wheel 2 and a clutch disc 59 is loosely mounted on the reduced extremity 60 of shaft 3,'said disc 59 being slidable on the spline 61. A clutch spool 62 is also slidably mounted on the extremity 60 of shaft 3' and is adapted to be shifted back and forth by a shift lever 63to which is connected an operating' bar 64. On moving the bar inwardly, the spool 62is shifted toward the whe'el2 which causes the clutch member 59, connected throughthe'link mechanism 65 to the spool, to

move'toward the disc 58 and grip a sprocket wheel 66 loosely mounted there between.

, When the sprocket wheel 66 is thus connected,

it'will rotate in unison with the wheel 2 and drive asprocketpinion 67 to which it is connected. by a chain 68. The sprocket pinion 67 is provided with a hub 69 on which sprocket 70 is keyed, said sprocket being connected by a chain 71 to sprocket pinion 72- freely rotatable on a'stub shaft 73. Sprocket pinion 7 2 is similar to pinion 67 and has a hub on which is keyed a sprocket '7 5 connected by a chain 76 to a pinion 77 keyed onto shaft 56 on which the agitator, or breaker roll, 55 is mounted. i

A cam rail 78 is secured by means of bolts 79, 79 etc., to the side of one of the track rails 5'in spaced relationship therewith, said cam'rail 7 8 having its ends inclined as shown I at 80, so that the lever 39 is rocked to its operativeposition to bring the roller 34 in line with the cam rail, said roller will ride upwardly on the incline 80 as the car moves forward, lifting lever 27 and at the same time causing the gear arms 25, 25 to be rocked so as to bring gear 31 in mesh with gear 10' and at the same time raise the gate 47, thereby opening the discharge slot 8 of hopper H. Obviously, lever 27 will be maintained in its raised position during the entire period that the roller'34 is riding on cam rail 7 8, and the hopper will be discharging material throughout this period. Therefore, the position and length of cam rail 78 are such that the hopper H will discharge material onto the rolls 21 and 55 and into the sintering pan during the time that the discharge from the roll 55 is passing over the pan.

The breaker roll 55 is provided with bosses 55' in spaced and staggered relation on its entire surface, and as the material discharges from roll 21 onto the breaker roll, it will be agitated or stirred by contact with the bosses as the roll 55 is rotated. Thus any material that may slide off the feed roll 21 in a lumpy condition will be restored to its finely divided condition by the action of the breaker roll.v

Obviously, the hopper H is provided with the samemechanism as the hopper H for the feeding of the material therefrom, except that no agitator, or breaker roll, corresponding to the roll 55 is needed, since the material bein' fed from hopper H is coarser than that fed from hopper H, and has less tendency to cohere and form into lumps.

' In Figures 12 and 13, I show a modified form of the invention, wherein the actuating arms 80 and 81, which carry cam rollers 82,83, have mounted on them a rock shaft 84, on which is fixed a shift lever 85. The roller 82 is adapted to be shifted laterally by a pair of depending levers 86, 86 and connecting pin 87 traversing the roller groove 88, and the roller 83 is adapted to be shifted laterally by depending arms 89, 89 and connecting pin 90, which traverses the groove 91 of roller 83.

It is thus apparent that when the operator desires to shift the rollers to put the mechanism into operation he operates the shift lever 85 to rock the shaft '84, whereupon both rollers 82 and 83 are moved into line with the cam rail 78.

Having described my invention, I claim:

1. In a charge car, a holder for thecharge, said holder having an open bottom, a shut-off gate for said open bottom, a feed roller ad- ]acent to the open bottom, means for coupling the feed roller to the running gear of the car for actuating the feed roller and means for openin and closing the shut-off gate at pre determlned points in the cars travel.

2. In a traveling charge car, a holder for the charge, said holder having an open bottom, 8. shut-off gate'for said open bottom, a feed roller disposed adjacent to the open botable feed roller disposed tom, an agitator for receiving the flow of material from the feed roller, means for connecting the feed roller to the running gear of the car for actuating the feed roller and for opening the shut-off gate at a predetermined point in the cars travel, and means for actuating the agitator.

3. In a charge car, a holder for the charge, said holder having an open bottom, a feed roller disposed below said open bottom, a fluifing roll adjacent to said feed roller, said fiutling roll having on its surface a plurality of formations for separating coh ering particles of material.

a 4. In a charge car, a holder for the charge, said holder'having an 0 en bottom, a rotatbelow said open bottom and adapted to feed the material from the hopper bottom in a wide stream, and a rotatable flufiing roll adapted to receive the material from the feed roller, the rotation axis of said flufiing roll being slightly in front of the periphery of the feed roller so that the material stream impinges on the fluffing roller slightly in back of a vertical plane passing through the center of the flufling roll.

5. In a charge car, a holder for the charge said holder having an open bottom, a shut-off gate for said open bottom, a rotatable feed roller disposed below said open bottom, a fluiiing roll adapted to receive the material from the feed roller, actuating mechanism for the feed roller, and means for automatically coupling and uncoupling said actuating mechanism to the running gear of the car at predetermined points in the cars travel.

6. In a charge car, a holder for the charge, said holder having an open bottom, a shut-off gate for said open bottom, a rotatable feed roller disposed below said open bottom, a flufling roll adapted to receive the material from the feed roller, actuating mechanism for the feed roller, means for automatically coupling and uncoupling said actuating mechanism to the running gear of the car at predetermined points in the cars travel, and means for actuating the fluflin roll.

7. In a charge car, a holder or the charge, said holder having an open bottom, a shut-off gate for said open bottom, a rotatable feed roller disposed below said open bottom, a fiufling roll adapted to receive the material from the feed roller, actuating mechanism for the feed roller, means for automatically couplin and uncoupling said actuating mechanism to the running gear of the car at predetermined points in the cars travel, actuating mechanism for the finfiing roll, and means for coupling said actuating mechamsm to the running gear of the car.

8. In a charge car, a holder for the charge,

said holder having an open bottom, a shut-off gate for said open bottom, actuating mechanism for the feed roller comprisin a rocking frame, driving gears mounte in sa d frame, a lever connected to the rocking frame and the shut-off gate, a cam roller carried by said lever, and -a cam rail for receiving the cam roller and rocking the actuating mechanism and shut-off gate to operative position for the discharge of material from the hop- In testimony whereof I hereunto aifix my signature. 7

THOMAS M. ALEXOVITS.

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