US2157458A - Coke guide employed when discharging coke from horizontal coke ovens - Google Patents

Description

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Filed Jan. 17, 1938 M. H. MCEWAN ET AL TI TI" Fig. 2.

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COKE GUIDE EMPLOYED WHEN DISCHARGING COKE FROM HORIZONTAL COKE OVENS May 9, 1939.

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COKE GUIDE EMPLOYED .WHEN DISCHARGING COKE FROM HORIZONTAL COKE OVENS Filed Jan 17, 1938 2 Sheets-Sheet 2 Fig. 3.

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Patented May 9, 1939 PATENT OFFICE COKE GUIDE EMPLOYED WHEN DISCHARG- ING COKE FROM HORIZONTAL OVENS COKE Matthew Hamilton McEwan and William George Buchanan, London, Woodall-Duckham England, assignors to Limited, London,

England, a British company Application January 17, 1938, Serial No. 185,466 In Great Britain January 25, 1937 3 Claims.

The present invention relates to improvements in coke guides employed when discharging coke fromhorizontal coke-ovens.

When discharging coke from a horizontal coke-oven, it is the conventional practice, after removing the oven door, to bring opposite to the mouth of the oven a coke guide, which extends over the width oi the door operating machine, and through which guide the coke is pushed into the coke car. The coke guide incorporates a pair of vertical side members, usually of lattice construction, of suitable height and spaced a suitable distance apart, to receive and support the coke cake while the latter is pushed out of the oven into the coke car.

The inner end of the coke guide (i. e. that adjacent to the face of the oven battery) must end a certain distance short of the face of the battery, in order that the coke guide will clear the buckstays and bracing members which project from the face of the battery, when the guide is being moved along the battery from one oven to another. Also, the mouth of the oven, when the door is removed, is recessed a certain distance in the door frame, so that there is necessarily a gap between the mouth of the oven proper and the inner end of the coke guide, and the coke cake is unsupported laterally in this gap. Sometimes, the coke cake may begin to break up after leaving the oven mouth and before it enters the coke guide, leading to spillage of the coke on either side of the oven mouth.

The present invention enables such coke spillage to be prevented, and ensures that the coke is properly supported and guided from the oven into the coke car. An important advantage of the present invention is the protection aiiorded by the arrangement to the buckstays against the heat of the coke leaving the oven.

According to the present invention a machine for use in conjunction with horizontal cokeovens includes a fixed coke guide and movable auxiliary guide members at the inner end of the fixed coke guide, which auxiliary guide mem- 4 bers can be extended from the fixed coke guide to form continuations of the sides of the fixed coke guide extending towards the mouth of the coke-oven, the movable auxiliary guide members when in the out-of-service position being clear of the oven battery.

Further features of the invention will be apparent from the following description and from the appended claims.

The manner in which the present invention may be carried into effect is more particularly described with reference to the accompanying drawings, which show, by way of example, a preferred form of the invention.

In the drawings:-

Figure 1 is a sectional elevation of part of a door machine and coke guide looking towards the oven battery,

Figure 2 is a part plan view of the portion of the machine adjacent to the oven battery.

Figure 3 is a vertical section on the line AA of Figure l, and.

Figure 4 is an enlarged View showing the movable guide members in the operative and out-ofservice positions.

Referring to the drawings, the machine shown runs on rails along the coke side of the oven battery. As is customary, the machine carries suitable mechanism for removing and replacing the heavy doors closing the ends of the ovens. This mechanism is not illustrated, as it is not concerned in the present invention, and any suitable type of device may be used for this purpose.

The machine also carries a coke guide to guide the hot coke from the oven, over the width of the machine, into the coke car or other receptacle. The coke guide consists of a portion 5, (hereinafter referred to as the fixed coke guide), fixed in position on the frame of the machine, and two auxiliary guide members, to be described hereinafter. The sides of the fixed coke guide 5 are of lattice construction, and are spaced apart a suitable distance to accommodate the coke cake; a floor plate is arranged between the sides 5. At the inner end of the fixed coke guide 5 are hinged the movable auxiliary guide members 6 and I, one on each side of the guide 5. The auxiliary guide members may be of lattice construction like the sides of the main coke guide. The hinges for the auxiliary guide members are indicated at 8.

The operating mechanism for the auxiliary guide members comprises the handles 9 and I0 interconnected through the cranks and connecting rods H to the vertical shafts I2 to which the auxiliary guide members are secured.

When in use the auxiliary guides 6 and 1 are held apart at the bottom by upwardly extending flanges l3a on an apron plate 13, which is hinged horizontally at the bottom of the inner end of the fixed coke guide 5, and operates between the I auxiliary guides, forming a bridge for the passage of the cokebetween the sole of the coke-oven and the floor of the main coke guide 5. The apron plate I3 is lowered into position and raised by the lever M which is connected by a crank and connecting rod with the pivot of the apron plate. The operating levers 9 and I!) for the auxiliary guides and the lever M are interlocked with the control for the traversing movement of the machine, so that the latter cannot be moved until the auxiliary guides and the apron plate have been returned to a position clear of the oven battery.

A spacing member i5 is preferably arranged to come into position at the top of the auxiliary guide members 6 and I when the latter are opened to the operative position, and to be withdrawn when they are returned to the out-of-service position. As shown, the spacing member I5 is hinged horizontally at the top inner end of the fixed coke guide 5 and is interconnected at I5a with the handle M for operating the apron plate l3, so that the apron plate and the spacing member are brought simultaneously into and out of position.

When in use, assuming the doors at each end of an oven to have been removed, the coke guide 5 is brought opposite the mouth N3 of the oven. The levers 9 and II] are then operated to turn the auxiliary guide members 6 and I from their out-of-service position Ea, la. (Figure 4) to a position in line with the sides of the fixed coke guide 5 as shown in Figures 2 and 4. The apron plate I3 is lowered and the spacing member I 5 is raised into position by the lever H1. The coke is then pushed out of the oven through the coke guide into the coke car.

It will be seen from Figure 4 that the auxiliary guide members extend the sides of the coke guide up to the mouth of the oven, leaving a small or negligible gap, and consequently spillage of the coke between the oven mouth and the coke guide is prevented. When in the out-of-service position the auxiliary guides fold across the end of the fixed guide 5 in the positions 6a and 1a, and in this position are fully clear of the face of the oven battery and the buckstays ll, so that the machine can be moved along the battery without risk of fouling the buckstays.

As already stated, the auxiliary guide members may be of lattice construction, like the sides of the fixed coke guide, and in this form, when in the extended position, they shield the buckstays on either side of the oven to a certain extent against the heat of the coke.

What we claim is:

1. A machine for use in conjunction with horizontal coke-ovens, including in combination a fixed coke guide and movable auxiliary guide members at the inner end of said fixed coke guide extensible from said fixed coke guide to form continuations of the latter extending towards the coke-ovens and retractable to an outof-service position clear of the coke-ovens, a movable apron plate at the lower end of said fixed coke guide operating between said auxiliary guide members, a movable spacing member for said auxiliary guide members at the upper end of said fixed coke guide, and a mechanical interconnection between said apron plate and said spacing member whereby said apron plate and said spacing member are operated simultaneously.

2. A machine for use in conjunction with horizontal coke-ovens, including a carriage movable along the coke-oven battery, a fixed coke guide comprising parallel vertical side members spaced apart with a floor plate between said side members on the carriage, movable auxiliary guide members hinged about vertical axes at the inner end of said fixed coke guide which auxiliary guide members when turned to the operative position form continuations of the vertical sides of said fixed coke guide extending between the buckstays of the oven battery up to the mouth of the coke-oven, and when turned to the out-of-service position are clear of the coke-ovens, and an apron plate pivoted at the inner end of the floor plate of said fixed coke guide and forming a continuation of said fioor plate between said auxiliary guide members when the latter are in the operative position and serving to space apart the lower ends of said auxiliary guide members in such position.

3. Coke guide for use in conjunction with horizontal coke-ovens, including a carriage movable along a coke-oven battery and carrying a fixed coke guide which latter comprises parallel vertical side members spaced apart, movable auxiliary guide members hinged about vertical axes, one at each side of the fixed coke guide at the inner end thereof, which auxiliary guide members, prior to discharging coke from an oven, are turned on their axes to form extensions of the sides of said fixed coke guide passing between and shielding the buckstays of the oven battery, the coke-guide as extended reaching substantially to the mouth of the coke-oven, the said auxiliary guide members being turned to the out-of-service position across the end of the fixed coke guide prior to movement of said carriage along the coke-oven battery.

MATTHEW HAMILTON McEWAN. WILLIAM GEORGE BUCHANAN.

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