US1365974A - Apparatus for quenching coke - Google Patents

Description

' e. A. AND w. H. F1000.

APPARATUS FOR QUENCHING COKE.

APPLICATION man APR. 1. 1919.

Patented Jan. 18,1921.

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UNITED STATES PATENT OFICE.

GEORGE ALEXANDER FLOOD, 0E SWAFFHAM, AND WIL LIAM HENRY FLOOD, OF SHEFFIELD, ENGLAND.

APPARATUS FOR QUENCHING COKE.

Specification of Letters Patent.

Patented Jan. 18, 1921.

Application filed April 1, 1919. Serial No. 286,668.

To all w ham it may coaccm Be it known that we, Gnoncn ALEX N- DER FLoon and WILLIAM HENRY FLooD, sub jects of the King of Great Britain and Ireland, residing at 13 Providence Terrace, Swaifham, in the county of Norfolk, and of 36 Wake road, Sheflield, in the county of York, respectively, England, have invented new and useful Improved Apparatus for Quenching Coke, of which the following is a specification.

Our invention relates to the quenching of coke which operation is at present usually performed by spraying water from hose pipes or sprinklers 011 to the of glowing incandescent fuel after it has been with drawn from the coke oven, suchwater as is not converted into steam, running off the fuel and away into culverts and drains provided for the purpose. This method is open to objection in that the outside portion of the charge of coke is often overquenched and the pores are blocked up with line breeze, also the interior of the mass does not get properly quenched, resulting in the formation of what are known as hot spots.

An alternative method of quenching coke is to employ a coke carrying cradle which is immersed in a tank containing water.

We have devised an improved method of and apparatus for quenching coke, in which the above named objections are wholly eliminated, resulting in the production of coke which is uniformly quenched and is clean and dry.

Our invention consists in quenching coke contained within a receptacle, by water flowing into the receptacle and rising upward in same from the bottom of the incandescent mass until the whole is submerged, and after a suitable interval running off such water quickly from contact with the coke, and to this end our invention also includes a special form of tank or receptacle with agridded floor, covering a valve chamber in which are situated the valve controlled outlets of the tank.

Our invention will bevbetter understood on reference to the accompai'iying sheet of drawings in which Figure 1 shows in end elevation coke being discharged into a car preparatory to being quenched with water from a stand pipe, also shown.

Fig. 2 is a front elevetionof same.

Fig. 3 is a sectional elevation of a con venient form of receptacle in which coke may be quenched by our invention.

The same letters refer to similar parts throughout the several views.

According to our invent-ion, the coke a when discharged from the oven 6, is deposited in a receptacle or tank made of hematite cast iron of very substantial thickness and which in the drawings is shown as a railway tipping car 0. Water under pressure is then allowed to flow into the tank 0 (preferably at one corner), from a stand pipe (Z and the tank is filled with water until the whole mass of coke is submerged, in which condition it is allowed to remain for a short period, the duration of which is determined by the quantity of coke to be dealt with, the atmospheric conditions preveiling at the time, and other circumstances which experience may suggest. The submerging of the coke with water in the manner described cuts off the surrounding air thus preventing combustion of the fuel and this together with the action of the superheated steam generated, etlectively quenches the whole mass of the coke in every part.

lVhen this quenching process has been carried on for a sutlicient length oi? time, the water is rapidly discharged from the tank, and to this end the tank is provided with a gridded or perforated removable bottom 0 beneath which is a valve chamber 6 running the whole or a portion of the length of the tank. Any desired number of valves 7 are situated within this cham her and rest upon annular seats formed in water outlets in the floor of same. The valves maybe actuated by lever and link mechanism (indicated by the letters 9 g in Figs. 2 and 3) engaging with the projecting ends of the valve stalks, and operated from either end of the car.

It is desirable that the perforations or openings in the floor c of the tank and also the valve openings be made of such a size as will insure the rapid discharge of the water from the tank when necessary. Likewise it is essential to make the valves f of material which will withstand the acid ity of the quenching water.

The quenched coke after remaining in the hot tank for a short time is either tipped on to a conveyer or is removed to storage bunkers.

It will be understood that the receptacle we employ for quenching coke may either be a movable vehicle on rail tracks, or a stationary receptacle, but in either case it is desirable that means should be provided for tipping in order that the contents may be conveniently and quickly discharged. 1

Coke which has been quenched by our improved method and in apparatus as is herein described, is immediately after the operation, warm and quite free from moisture, and has a steely luster with clean open pores similar to that known as beehive coke, and is entirely free from hot spots.

Having now described our invention, what we claim and desire to secure by Letters Patent is An apparatus for quenching coke, comprising a tank, a perforated removable bottom plate in said tank, said plate being oi inverted V shape in cross section whereby the apex projects upwardly into the tank, a valve chamber below said plate and provided with a plurality of water outlets, and a plurality of valves adapted to close said outlets.

In testimony whereof we have signed our names to this specification.

GEORGE ALEXANDER FLOOD. lVILLIAM HENRY FLOOD.

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