US1095725A - Device for emptying upright coking-chambers. - Google Patents

Description

Patented May 5, 1914 4 SHEETS-SHEET 1.

A. GQHMANN. DEVICE FOR EMPTYING UPRIGHT COKING CHAMBERS. APPLICATION FILED JAN. 17, 1913.

1,095,725. Patented May 5, 1914.

- 4 SHEETS-SHEET 2.

Patented May 5, 1914;

4 SHEETS-SHEET 3.

A. 'GOHMANN. DEVICE FOR EMPTYING UPRIGHT GOKING CHAMBERS. APPLICATION FILED JAN.17, 1913.

I E7 a c A. GOHMANN. DEVICE FOR EMPTYING UPBIGHT GOKING CHAMBERS.

. APPLICATION FILED JAN. 17, 1913.

Patented May 5, 1914 4 anus-skim 4.

Af/omegy bers,

an'rnon eorzrrame'; or srn'rrm, GERMANY, AssIeNon r s'rn'rrmnn CHAMOTTE;

FABBI K .L ZtGiLIEN-G-ESELLSCHAET VORM PCBATIUN 0F GERMANY.

. DIDIER; STETTIN, GERMANY, A COR- savior. ran nmr'ryme urnlen'r Connie-cameras.

esa-":25.

Specification of Letters Patent.

Patented May 5, 1914.

Application filed January 17,1913. Serial no. 742,543. 1

d e'n;t of Stettin, Germany, have invented cerjl'ta'ih new and useful Improvements in .De-

vices for Emptying Upright Cokingrchamof which the following is a specification. 1 i

,My invention relates to devices for empt ing upright chambers of coke ovens or otherapparatus in which the material undergoing treatment is discharged, at a certain stateof the operation, from the lower ends of the column.

chambers containing it.

According to the usual procedure, upright coking chambers are emptied by means, of

two cars arranged to travel under the oven,

'one of said cars being provided'with a devicefor raising and lowering the bottoms used for closing the coking chambers, while the other car has a platform for receiving the coke discharged from the several chambers. Hitherto, the emptying operation was begun by withdrawing the bolts 01 latches serving to lock the bottom to the oven, and

then the bottom was lowered a certain distance by means of the device provided for this purpose on one of the cars. Thereupon this car, or an auxiliary car traveling upon it and carrying the chamber bottom, was

moved along under the oven, together with the coke-receiving car located adjacent to the first-named car. The chamber bottom was thus carried horizontally away from'the coke column resting on it, and theplatform of the co r receiving'carwas brought under the coke column. 'A stationary retaining plate kept the coke'column from following the mov'ementfof the cars, and thus the column was caused to collapse, the coke pieces talling on the platform of the coke-receiving car.

- The customary procedure described above is objectionable on account of theexceedingly great friction arising between the heavy coke column and the chamber bottom as the latter is moved from under the coke Considerable power is therefore required to carry the chamber bottom away coke column discharged from the chamber.

With

will drop on the coke-receivin car. this procedure,,the emptying'o the chamber takes place rapidly and requires relatively little power,- in view of the'factthat-the tilting ofthe bottom for the purpose of,

dumpingfthecoke on thecoke receiving car,

dispenses with the necessity of moving the two cars at the time the coke is discharged',

and furthermore, the bodily lowering of the bottom and its tilting movement can beaccomplished in a single step of the operation,

by moving the device (carried by one of the r cars) which moves the bottom'into andout" of engagementwith the oven.

Another advantage of my invention is that the upper surface of the bottom, on

which'the coke column rests, is much less subject to wear than with the procedure em ployed heretofore.

The quicker emptying of tained with my' invention is further advantageous in "that the emptied chamber 'remains open at its'lo'wer end for a'shorter timethan hitherto andcantherefore be put in operation again more rapidly. shortening of the interval during which the lower end of the chamber remains open is conducive to a moreeconomical operation of the oven, for the reason that the'efficiency of the oven the output per 24: hours.) s increased and 'the heat losses due to radiation are diminished.

According to my invention ing which the emptied chamber remains the chamber ob- J any the time dur open can be shortened still more by provid- 1 ing the car which carries the device for lowering the chamber bottom, with an addi- 7 emptied chamber.

ti'onal device for raising and lowering an auxiliary bottom. Before the bottom of the chamber to be emptied is lowered, the auxiliary bottom may be prepared for being fitted to said chamber, that is to say, its joint surfaces may be provided with a suitable luting or packing material, such as clay, etc. After the bottom of the chamber to be emptied has been moved downward bodily and then tilted downward, to throw the coke on the coke-receiving car, the-latter is moved away and simultaneously the car provided with the lifting and lowering devices is moved a short distance, so that the-second of these devices, with the new (auxiliary) bottom will come directly beneath the This new bottom may then be moved upward and applied to the emptied chamber by means of the second lifting and lowering device, so that after locking or latching the new bottom the chamher is again ready for operation.

One manner of carrying out my invention is illustrated in the accompanying drawings, in which- Figure 1 is a side elevation, with parts in section on the line A-B of Fig. 2; Fig. 2 is a vertical section on line C-D of Fig. 1; Fig. 3 is a plan view of the car carrying the lifting and lowering devices, and also shows a portion of the coke-receiving car, the two cars, for the sake of clearness, beinglepre sented as moved apart slightly; .Fig. 4 is a horizontal section through part of the car provided with the lifting and lowering devices, taken on the line'E-F of Fig/1; Figs. 5, 6 and 7 are vertical sections illustrating three different positions of an auxiliary car mounted to travel on the car shown at the left in Fig. 1.

In Fig. 1, the upright coking chambers 1 of the oven 3 supported on beams 2, are arranged in a set or bench, and-are normally 1 closed at their lower ends by means of plugs or bottoms l of well-known character, these bottoms being held in the closed position by means of locking orlatching devices well known in the a rt and therefore not illustrated in the drawings.

Viewed in horizontal section the chamhere 1 are of rectangular shape, as usual, the

short side of the rectangle being'shown 111 Fig. 1. Under the row or set of chambers 1 is arranged a track?) at right angles to the long sides of the rectangular chambers 1, and on this track are adapted to travel the cars 6 and 7. The coke-receiving car 6 is provided with an inclined platformor container 9 supported by a frame work 8 and adapted to receive the coke discharged from'one of the coking chambers 11. This car is provided with side walls 10 stationary in relation to the platform 9.

end of the platform is arranged a plate 12 .tal platform and provided with a railing 21.

. upper end with piston 32 carrying at its upper .34 connected with a frame At At the upper.

mamas mounted to turn about a horizontal axis 11 and having its movement limited by the stops 13 and 14. At the lower end of the platform 9 a gate 15 is mounted to turn about a transverse gate being normally locked by means of any suitable latching device (not shown). A toothed sector 17 is connected rigidly with the gate 15 to permit of swinging the gate by means of a pinion 18 meshing with said sector and provided with a crank. other car, 7, has a truck 19 provided with a horizontal platform 20, and carrying, sly means of a frame work 23, another horizon 22. located above the platform At that end of the car 7 which is shown at the right in Fig. 1, the truck 19 and frame 23 carry two vertical hydraulic cylinders (Fig. 2), the axes of which lie in a plane which is transverse to the track 5 and therefore parallel to the long sides of the rectangular coking chambers. The piston 25 of each cylinder 24 is provided at its a head 26 to which a frame 27 is secured. The lower surface of each bottom 4 is provided with ribs 4 rounded at their ends and adapted to rest on said frame 27 at the time the bottom 4 is lowered. At the ends of the frame 27 are secured downwardly extending, vertical rods 28 movable in guides 29 of the frame 23. The lower ends of the guide rods 28 are connected by a cross head 30 movable on the corresponding cylinder 24. The car 7 also carries another pair of hydraulic cylinders 31, similar in construction to the hydraulic cylinders 24-. and arranged at that end of the car which is shown at the left in Fig. 1. Each of the cylinders 31 has a hydraulic end a head the ends of the frame 33 are secured downwardly extending vertical rods 35 mounted to slide in guides 36 of-the frame work 2?) and connected at their lower ends by cross heads 37 movable on the respective cylinders 31. The pistons 32 ordinarily carry an auxiliary bottom 88 of the same construction as the bottom 4 and resting on the frame 33 by means of ribs 38 corresponding to the ribs 4.

Each of the pairs of cylinders 24 and. 31 is connected with a pipe 39 and 40 respec tively for supplying water under pressure, the passage of water to said pipes from a supply pipe 43 being controlled by a cock or valve 42 actuated by a handle 4L1. When brought into a certain position. this cock connects the pipes 39 and 40 with a drain pipe 44. By properly manipulating the cook 42, one or the other pair of cylinders 24 and 31 may be connccted first with the supply pipe i3 so as to raise the pistons 25 The horizontal axis 16, said or 32, and then with the drain pipe 44, to allow said pistons to return to their lower position. The cock i2 is so constructed that the two pairs of cylinders may be connected successively with the supply pipe 43, and also successively with the drain pipe 44.

The upper platform 22 of the car 7 carries a track 45 parallel with the main track 5. On this track 45 is adapted to run an auxiliary car it) having aframe 47 mounted on short alining transverse shafts 48 journaled in brackets 49 of the auxiliary car. Normally, the carrying frame 47 is in the inclined position illustrated by Fig. l, the.

portion of the frame to the right of the shaft 48 resting on. sto s, 50 secured to the brackets 49. At the left-hand end of the frame 47 are secured two cross bars 51 each having at its upper end a horizontal pin on which an angular arm 54 is mounted to turn. The arms 54 are adapted to receive the bottoms in the manner described below, and each of said arms is provided at its free end with a lug 55 and with a roller 56 which during the downward tilting of the arm travels on a horizontal guide 57 secured to the rods 28 of the adjacent piston 25. The roller56 and its guide 57 are so arranged that with the auxiliary car 46 in the extreme right hand position (Fig. 1-) the roller 56 will be slightly to one side of the path of'said guide, and'at the moment the bottom 4 is caught by the receiving arms 5d as described below, the guide 57 will be slightly below the roller 56. With each of the arms 54 is connected a lever 59 provided with a counterweight 58, the downward movement of each lever being limited by a stop 60 on the corresponding bar 51. Each bar 51 carries a toothed sector 6]. in mesh with a pinion '82. The two pinions 62 (Fig. 2) are secured to the same shaft (33 journaled in brackets 64 of the auxiliary car 46. One. end of the shaft 63 is provided with an operating crank .65, the other end carries a ratchet wheel (36 engaged by a pawl 67 pivoted to one of the brackets 64., This, pawl revents any accidental downward movement of that end of: theframe 47' which is shown at the left in Fig. 1, said end being provided with the toothed sectors 61 and the receiving device or carrier 54, 59.

T he two cars (3 and 7 are propelled by separate electromotors $8 and (39 respec-' tively, connected with one of the car axles by suitable gearing'and controlled fromthe drivcrs stand otdhe respective car.

The operation of the abm'e-described apparatus is as follows: When one of the coking chambers 1 is to be emptied, the car 7 is \'-:hecled to such a position under the oven (:(BQ Fig. 1) that ,the pistons 25 will be d i-.

rcctly below the oven chamber to be emptied.

The auxiliary car 46 is also brought to the position shown in Fig. 1. The plate 12 is then swung to the position indicated by dotted lines, and the car 6 is brought closely against the car 7 so that the upper end of the inclined platform 9 will be adjacent to the pistons 25. The plate 12 is then swung down into the position shown by solid lines,

so as to rest against the ends of the arms 54. Thereupon the istons 25 are caused to move upward until t e frames 27 engage the lower surface of. the bottom t of the coking chamber to be emptied. The bolts or other devices serving to lock the bottom 4 having been released, the pistons 25 are allowed to move downward, carrying with them the frame 27 and the chamber bottom 4 together with the coke column resting thereon, as shown in Fig. l.

,The bottom a is at first moved bodily downward in a vertical direction, until it comes to rest on the horizontal members of the receiving arms 54:, as shown in Fig. 1. The downward movement ofthe pistons '25 however is not arrested at this point, but

.continues without interruption, whereupon the weight of theebottom 4 will cause the arms54= to swing downward a short distance. This lost motion, as it were, of the arms 54:, brings'the rollers 56 against the upper surfaces of the horizontal guides 57 connected with the pistons 25.' During the further downward movement of the istons; the rollers 56 rest and travel upont e said "guides 57. At this juncture therefore, the

bottom 4 can no longer mote bodily down- -ward vertically in unison with the pistons 25, since the receiving arms 54: act as levers swinging about the axes of the rollers 56 and thus lifting the bottom t from the frames 27, the lugs 55 preventing the bottom 4 from sliding ofi the arms 54. T he consequence is that during the further downward movement of the pistons 25 the bottom 4 is swung or tilted downward until it comes to rest 'against the inclined frame 47 as shown in Fig. 5. At the same time, the plate 12 drops against the stop 14 and thus takes a position in,'line with the platform 9. Fig. 5 also shows how the movement of the bottom 4 and of the plate 12 into the position just described causes. the coke columnto collapse, the coke sliding down upon the inclined platform 9 and being of course arrested at the lower end of it by the gate 15 which at the time is in the closed position shown in Fig. ITThe inclined position of the platform Q-causes the coke to be distributed uniformly upon it. The inclined position of the bottom 4 causes the coke to slide off the upper} surface of said bottom readily and without any material friction. Thus no coke particles will remain upon the bottom t and it will not he'necessary, as it was h therto, eto go to the trouble of cleaning with another device for raisin wise on the car,-.cobperat-ing with the fir stnamed device to automatically tilt said bothaving removable bottoms to close said chambers, comprising a car adapted to receive the niatcrial discharged from such chamber, and another car rovided with a device for lowering a charm er bottom from its normal closing position, and with pivoted arms adapted to receive the bottom from engage sai said device and to tilt the bottom to cause the material to slide'ofi from it into the first-named car.'

6. An apparatus for emptying upright chambers of coke ovens and other structures having removable bottoms to close said chambers, comprising a car adapted to re ceive the material discharged from such chamber, and another car provided with a device for lowering a chamber bottom from the normal closing position, horizontal guides connected with said device, and pivotcd arms rovided with rollers adapted to d guides, said arms being adapted to receive the bottom lowered by said device and to swing as the rollers travel alon said guides, so as to tilt the bottom andidisc arge the material into the first-named car.

7. An apparatus for emptying upright chambers of coke ovens and other structures having removable bottoms to close said chambers, comprising a car adapted to re ceive the material discharged from such chamber, and another car provided with a device for lowering a chamber bottom from its normail closing position, and with another device for raisin another bottom toclose the emptied cham er.

8. Anappa'ratus chambers of coke ovens and other structures having removable bottoms to close said chambers, comprising a car adapted to receive the materiah discharged from such chamber, and another car rovided with a device for lowering a ch'am er bottom from its normal closing osition, another device for raising another bottom toclose the emptied chamber, and an auxiliary car mounted to travel on the second-named car. and adapted to transfer a chamber bottom fromsaid lowering device to said raising (197108.

for emptying upright 9. An apparatus for emptying upright chambersof coke ovens-and structure-l having removable bot-toms toa chambers, comprising a car to receive the material discharged tram each chamber, and another car provided with a device for'lovvering a chamber but? om from its normal closing position, another device -for raisin another bottom to close the crop i' .tiedchalnber, and an auxiliary car mounted to travel on the second-named car, said aux iliary car being provided with pivoted arms adapted to receive the lowered bottom andto tilt it for the discharge of the material into the first-named car, and a; frame movably connected with the auxiliary car and adapted to support the bottom upon the downward swinging of'the said arms, said auxiliary car being arranged to travel on the secondnamed car from a point adjacent to the lowering device to a mg device.

oint adjacent to the rais- 10. An apparatus for emptying upright.

chambers of coke ovens and other structures having removable bottomsto, close ,said';

chambers, comprising a device movable to-' ward and from the chamber .t ogsreceive its bottom and lower such bottom bodily from the chamber, and pivoted arms held in the path of the bottom to ered and to tilt it. I

11. An apparatus for emptngupright chambers of coke ovens and other structures receiveit as itis'low" 4 having removable bottoms to close said chambers, comprising a device movable toward and from the chamber to lower said bottom bodily, another device for raising a bottom to close the emptied chamber, and

a traveler for carryin a bottom. from a point adjacent to the rst-named or lowermg device to a point adjacent to the raising device. {I j 12. An a paratus'for emptying upright chambers o 'coke ovens and other structures having removable bottoms to close said,

chambers',compris a lowering device for;-

car such bottom by 'frcm the chamber, anotherdevice fortraising abet, tom to claw the-emptied chamber, and a travels "prcvidedwith atilting carrier adapts" receive a bottom from thefirst named or'lowerin device and to deliver such bottom to the sai raisingfdevice.

-13. An apparatus for 'emptying upright chambers of coke ovens and other structures having removable bottoms to close said chambers,7-" bomprising a car arranged to travel from one'chamber-to another and provided with a device for lowering a chamber bottom from; its normal closing position,

another device for raising another bottom to closethe etied chamber, and an auxiliary car mounts to traveton the firstrnamed car w I v 1,095,725

and adapted to transfer a chamber bottom from said lowering device to said raising device. l

1 4:. An :1 paratus for emptying uprightchambers o coke ovens and other structures heving' removable bottoms to close said chambers, comprising a car arranged to travel from one chamber to another and provided with a device for lowering a chamber bottom. from its normal closing position, with another device for raising another bottom to close the emptied chamber, and with means for transferring a chamber bottom from said lowering device to said raising de vice.

In testimony whereof I have signed this specification in the presence of two subscribing witnesses.

ARTHUR GOHMANN.

Witnesses WALTER LANGE, EMIL Somnm.

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