US1098374A - Coke-oven or gas-furnace. - Google Patents

Description

W. PEICKS.

00KB OVEN 0R GAS FURNACE.

APPLIOATION FILED JAN. 3, 1912.

1,098,374, Patented June 2, 191i F/GJ FIG. 2. P 1L I] WITNESSES: vy v7'0,&7;-

UNITED STATES PATENT oFFioE.

WILLIAM FEICKS, OF BLOOMFIELD, NEW JERSEY.

COKE-OVEN OB. GAS-FURNACE.

Specification of Letters Patent.

Patented-June 2, 1914.

Application filed J anuary 3, 1912. Serial No. 669,188.

comprises an oven or furnace structure hav- I ing peculiar charging doors and a charging apparatus arranged to co-act therewith in such manner as to insure successful delivery of fuel into the interior of the furnace and to provide a positive check against the premature operation of the charging device, as when it is not in correct position to deliver the fuel into the oven, all as more fully hereinafter set forth and as claimed.

Machines of this type, in which either a hop-' per or a tube fitted loosely to the lower end thereof can be lowered to make connections with a charging door to cover the hole-and prevent the escape of gas, are known; but there are several objections to such machines, and therefore they have not been generally adopted. Where a hopper 'is arranged to make connection with the oven charge opening, the raising and lower ng of such hopper requires somewhat complicated structures and mechanisms, while in the type connection with the oven, and separate devices be provided for opening the hopper. Both of these disadvantages will be so much more evident in cases Where a plurality 'of hoppers are mounted on a car and arranged to be simultaneously discharged, so as to expedite the charging of the battery. As is usual with such apparatus, the operator for various reasons, is located on an elevated platform or in a closed cab, from which it is impossible to determine exactly, when bringing the car into position, if the hopper out-let is directly above the charging hole in which it is desired to dump a charge of fresh fuel. Or, due to carelessness in general, on the part of the operator, he may open the hopper discharge before the machine is in proper position and thus spill part or all the fuel on top of the oven or into the seals and cause considerable trouble and delay.

The objects of my present invention, beside eliminating the disadvantages of other machines, above referred to, are to provide exceptionally simple and inexpensive apparatus for successfully charging the ovens, and an apparatus by which it is impossible to open the hopper out-let and thereby prematurely discharge the fuel therefrom when the machine is not in position to allow all the charge to enter the oven. 7

With these and other objects in view, my invention comprises a car provided preferably with a plurality of hoppers for simultaneously charging the ovens, and a peculiar charge opening on the ovens arranged to co-act with the hoppers to allow the charge to be dumped into the furnace, but to prevent the hopper from operating unless directly over the openings and forming airtight connections with the hopper bottoms or sleeves slidably connected thereto.

In the accompanying drawings, in which similar letters of reference designate corresponding parts, Figure 1, is a longitudinal section through an oven with my improved hopper car above the same shown in elevation; Fig. 2, shows an end view of the car; Fig. 3'is a vertical-transverse section on line 11 of Fig. 1, and shows the bell-valve in lowered position in dotted lines.

Referring to the drawings, numeral 1 designates a battery of ovens or furnaces, having the charging holes 2, each provided with a sunken seal 3, here shown as liquid seals. These seals comprise annular sections 4: for water, resting in the ovens and seated on shoulders 5, and extensions 6 extending inside the openings. The seal is flush with or lower than the top wall' of the oven so that the hopper or sleeve may cooperate therewith, as hereinafter described.

I A car. 7, which may be power or hand driven, is arranged to traverse the battery of ovens on rails 8, and as shown is equipped with three hoppers or charges 9, suitably spaced and arranged to simultaneously connect with and discharge into the oven openings 2. I may provide one charger or a plurality of them, but as Shown, the car is arranged to charge three openings simultaneously. Each charging device 9, is provided with a base 10 carrying the discharge end 11 with rip-turned flanged portion 12 (shown clearly in Fig. 3.) Sleeve 13 withthe turned-over end 14 is arranged to slide -on the discharge end 11 of the hopper and suitable packing 15 may be provided if desired. This sleeve 13 is constructed with a seat 16 for the upper portion of a bell valve 18 and with flange 17 adapted to seat in seal 3. For controlling the movement of the sleeve 13, and also to charge the ovens as hereinafter described, I provide a bell or bell-valve 18, normally seated at the seat or end 16 of the sleeve and closing the lower end thereof. This bell-valve is operated through chain or rope 19 traveling in the tube 20 in order that the coal or other fuel used in the hoppers and sleeves may not interfere with the raising and lowering of the bell-valve. The rope 19 is operated through drum 21 or other suitable hoisting device, which may in turn be operated through shaft 22 and hand-wheel 2a or equivalent means. The bottom of this bell-valve is normally flush with the bottom of the sleeve or it may extend slightly beyond the flange 17 It should not terminate short of the extremity of the sleeve, but should be at least flush with the extremity, .since the sleeve will, under the latter conditions, prevent the valve opening when the charging device is not directly above an opening in the fur.- .iace. It is advantageous, however, to extend the valve slightly beyond the sleeve so as to obtain a positive seating of the valve if the charging device is lowered when out of line with an opening. This arrangement serves as a check to prevent premature and incorrect discharge of the coal, as hereinafter explained. The frame-work 24 of the car, and the still-pots 25 of the ovens are not described in detail as they are shown for the sake of illustration and adaptation of my invention, and are not necessarily of the form and construction shown for the correct operation and application of my device.

In operation, the car, with its chargers and hoppers, is brought into position over the charge openings of the furnace, the plugs 26 of the charging holes 2 having been first removed; the hand-wheel 22 is revolved so as to play out the rope 19, thereby first simultaneously lowering the sleeve 13 and the bell-valve 18 supporting the same, until the sleeve comes into contact with the seal 3 or the wall around the oven opening, at which time an air-tight connection is formed and the bell-valve continues to descend into the opening and allows a charge of coal carried in the hopper and sleeve to be dumped into the oven. Should the operator stop the car in incorrect position for charging and then attempt to lower the sleeve and bellvalve, the oven top forms a check against such premature charging, since the bottom of the bell-valve extends beyond the sleeve flange 17, or at least flush with its lower end, and is effectually held in closed position noose/e by its engagement with the top of the oven or possibly the part of seal 3. When the car is in correct positidn and the sleeve 13 i lowered, the flange 17 seats in the seal,

the bell-valve is directly over the opening,

and can descend directly into the same to deliver a charge, while the air-tight joint formed by the seal and the sleeve effectually prevents the escape of gas and the admission of air into the oven. After the hoppers are emptied, the hand wheel is again revolved, but in the opposite direction, causing first :1 raising of the bell-valve, and after the bellvalve engages its seat 16 on the sleeve 13, the elevation of said sleeve on the hopper eX tension or discharge end 11 until a position is reached which will allow the bell to clear the discharge plugs of the oven when the car is traveling.

My invention successfull overcomes the disadvantages of the other known machines and provides a simple, comparatively inexpensive, and eflicient machine for charging coke ovens and the like.

It is evident that various changes may be made by those skilled in the art without departing from the scope of my invention and I do therefore not limit myself to the special form and exact construction shown in the accompanying drawings. It is also evident that theparticular application of my device o coke ovens, as shown, is not the only manner in which the invention may be used, since it is applicable to blast furnaces, retorts of certain types, and in fact any structure wherein charging devices may be used; therefore in the following claims wherein the word furnace is used, such claims are to be construed as covering any type of furnace, (blast, gas, or otherwise) retort or oven structure where a charge of material of any kind is to be fed into the interior thereof.

What I claim and desire to secure by Letters Patent is 1.. The combination with a furnace having a chargin opening surrounded by a sunken seal, 0 a charging device carrying sealing means for engagement with said sunken seal to form an air-tight joint therewith and provided with a closure which is operable to open the charging device only when the sealing means is in engagement, with said sunken seal.

2. The combination with a furnace having a charging opening surrounded by a sunken seal, of a charging device comprising a hopper and a sleeve therefor, said sleeve provided with a closure at one end and with sealing means to form an air-tight joint with said sunken seal, and means for elevating and lowering said closure to elevate and lower said sleeve andto open the end thereof wheen the sealing means of said lever is in engagement with the sunken seal.

3. The combination with a battery of furnaces having charging openings, of a car adapted to traverse the battery and carrying a charging device comprising a hopper provided with' slidable enveloping means for covering an opening of the oven, said enveloping means provided with a valve adapted to control the operation of the enveloping means but which in turn may only be unseated when the enveloping means is covering said opening.

4. In a charging device for furnaces, a car provided with a hopper for containing the materialtobe charged, a discharge end carried by said hopper, a sleeve arranged to slide on said end, means carried by the sleeve for engagement with the furnace, a

.valve at the end ofsaid'sleeve normally extending downwardly at least flush with the end and arranged to operate the same, and

mechanism for controlling said valve.

5. In a charging device for furnaces, a hopper carrying a slidable sleeve adapted to engage the furnace and a valve arranged to control said sleeve on said hopper, said valve extending at least flush with the end of said sleeve, whereby said valve is allowed to disengage the end of the sleeve to deliver a charge only when directly above an open- 6. In a charging device for furnaces, the combination of a movable truck provided with a hopper, a sleeve slidably connected to the discharge end of said hopper, a movable bell-bottom normally closing the outlet of said sleeve and supporting the same,

means for simultaneously raising and lowering said bell-bottom and thus said sleeve relative to said hopper and for raising and lowering said bell-bottom relative to said sleeve and hopper.

7. In a charging device of the character described for furnaces having. charging openings surrounded by sunken seals, a hopper carrying means adapted to engage the top wall of the furnace surrounding an opening, a closure for said means extending adapted'to seat on said extremity and pro- 1 Vlded with flexible means for raising and lowering the same, a tube disposed in said sleeve and enveloping said flexible means,

and mechanism forwinding and unwinding said flexible means to elevate andlower the bell-va1ve and said sleeve.

In testimony whereof, I aflix my signature in the presence of Witnesses.

WILLIAM FEICKS.

Witnesses: v FRED; W. WELSH, LOUIS D. HANKE,

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