US1346515A - Apparatus for producing coke - Google Patents

Description

A. M. SMITH. APPARATUS FOR PRODUCING COKE.

APPLICATION flLED JUNE 2, 1917.

1,346,515. Patented July 13,1920.

la 0 516a if? @ffiwiww' A UNITED STATES) PATENT. OFFICE.

ARTHUR M. SMITH, F CLEVELAND, OHIO.

APPARATUS FOR Pli'tOIDU'CINGr COKE.

insect-15.

Specification of Letters Patent. Patented July 13, 1920,

Application filed June a, 1917. Serial No. 172,374.

. To all whom z'tmay concern:

Be it known that T, ARTHUR M. SMITH,

a citizen of the UnitedStates, residing at Cleveland, in the county of Cuyahoga and State of Ohio, have invented a certain new and useful Improvement in Apparatus for,

Producing Coke, of which the following is a full, clear, and exact descriptlon;

This invention relates to an apparatus having provisions for the coking of coal,

and in addition provisions for quenching the hot charge of coke, out of contact with the air and without the use of water. The object of the invention together with the purposes of the construction will be more fully understood as the description proceeds. However, in general it may be said that the invention comprises the elements and the combinations thereof which are set forth in the accompanying'claims.

Reference should be had to the accompanying drawings forming a part of tlIIS specification in which Figure 1- is a slde elevation with portions in section of an apparatus embodying'my invention; and Fig.

2 is a section through a portion of the fur;

naceon the line 22 of Fig. 1.

' The usual method employed for quenching coke as it comes hot from whatever form of carbonizing apparatus has been used to produce the coke, is to throw a large quantity of water upon the mass ;of coke, and this water treatment is continued until the mass of coke is cooled sufficiently so that it will not ignite in the air. This quench; ing treatment has many. disadvantages among which may be mentioned thatof over quenching portions of the coke and causing the mass of coke to'cr ack or bi'eak into small pieces. Furthermore the water treatment renders the coked mass .friable so that in subsequenthandling it becomes broken into small pieces. It is oneof the structure whichcontains it may vary con-' siderably in various types of coking furnace. The chamber 1 is provided with an opening 2, which is connected with a hopper 3, the: passageway between the chamber l and hopper 3 being controlled by any suitable gate or valve 4. It will be understood that the coal'which is to be coked is charged into the furnace through the hopper 3.

The chamber 1 has a short extension 5 which is normally closed. This portion 5 is adapted to receive. a .pusher element 6 so that coal which is charged into thechamber 1 may be pushed toward the lower portion thereof and distributed in the chamber.

Communicating with the upper portion of the chamber 1 is an outlet passage 7, this being connected with suitable means for taking off the gases formed by the coking of the coal. I

The axis of the coking chamber is inclined thls being for the purpose of more readily discharging the contents of the chamber after the coking operation. The angleof inclination is sufiicient to permit the slipping of the charge when the charge is not held in a manner described.

The lower end of the chamber 1 is in communication with the interior of a second chamber contained within a receptacle which is indicated at 8. The chamber to which reference has just been made is which will be later.

termed a quenching chamber for it" is in this chamber that coke which has been formed in the chamber 1, is passed for the purpose of allowing it to cool.

- The coolingtakes place out of contact with the air for the entrance of air th the quenching chamber is excluded by means of a door -9 which is pivoted upon the receptacle 8 and is so assembled with respect to the receptacle that air is excluded from the quenching chamber when the door is closed. The door when opened permits the passage of the inaterial within the quenching chamber to some means by which the coke may be transported to suitable bins or containers. Obviously there are many diiferent forms of conveyancing means which maybe used. In the present instance Ihave indicated aconveyer 10 for the purpose. I

Within that portion of the quenching chamber which is adjacent to the coking chamber 1 thereis arranged a suitable means forming a gate between the coking chamber and the quenching chamber. In the present instance I employ two sets of fingers such as fingers extend through the side walls of the member 8 and suitable mechanism which is not shown, may be provided for moving the fingers 11 and 12 toward or away from each other.

The fingers when brought toward each other form a gate for retaining the mass of coke against movement as will be later described.

Just-beneath the fingers the floor of the quenching chamber is formed with an offset portion or" shoulder 53*, the function of which will later appear.

Adjacent the exit portion of the quenching furnace, fingers such asindicated at 13 are arranged in a manner similarto the fingers 11 and 12, and function in the same manner as do the first mentioned fingers.

The axis of the quenching chamber is in line with the axis of the coking chamber and is inclined in the same fashion as is that of the coking chamber, so that when desired, coke from the coking chamber may readily pass to the quenching chamber.

The operation of the furnace is as follows:

At the very beginning of the use of the furnace the fingers 11 and 12 are moved toward each other, and there is charged into the furnace 1 a small mass of coke which will lie against the fingers l1 and 12. This mass of coke forms what I may term a plug, and when the fine 'coal is subsequently charged into the retort it is held by this plug of coke and so prevented from passage out of the retort or chamber. a

When this has been accomplished, the coal is heated until the mass is coked. The fingers at the lower portion of the quenching chamber are moved toward each other, and thefingers 11 and 12-are moved away from each other. This permits the mass of coke within the chamber 1 to slide from that,

chamber into the quenching chamber and into contact withthe fingers at the-lower poi'tion of the quenching chamber. The mass of coke then comes to rest, and again the fingers 11 and 12 are moved toward each other, piercing the mass of coke and cutting off a section which remains within the chamber 1. This section thus cutoff, forms a plug'against which the fine coal of the succeeding charge for furnace retort may lie and be held.

The fingers pierce the coke mass in line with the coke above the shoulder 8 and as the fingers push inward the shearing of the mass of coke is assisted by the weight of coke above the shoulder for'the cut off portion is permitted to drop.

. After the fingers 11 and 12 have been moved toward each other, the fingers at the lower portion of the quenching chamber are moved, which permits the mass of coke within the quenching chamber to slide against the door 9 of that chamber and thus-leaves a space between the charge of coke and the cut off portion of the coke.

' In practice, while perhaps not entirely necessary, I prefer to have the period for quenching the coke the same as the period necessary for coking the coal charge. This period of time is about twelve hours, in which time the charge of coke will be sufficiently quenched so that exposure to theair will have no effect upon it.

The slanting arrangement of the chamber together with the fingers forming gates, which have been described, is a very effective means for cokin' coal and forhandling the charge when coked.

Forinstance, when the fingers 11 and 12 are moved to permit the passa' e of the coked mass from the chamber 1, t e fingers may be retained in slight engagement with the outer surface. of the mass of coke so that it will not move too fast,-but will descend practically as a body, and will not be injured or broken up by its descent into the quenching chamber. v

The same is true with respect to the discharge of the coke from the quenching chamber, and thereby I am enabled to accomplish a very important result which cannot be accomplished when cokeis quenched by the use of water, which is the usual method at present 'used.

Furthermore it will be apparent that the severing of the portion of the coked charge for the purpose of retaining that portion to form a plug to thereby close the end of the coking retort, obviates the necessity of havinga separateclosure member for thelower end of the retort.

Having thus described my invention, what claim is quenching chamber and excluding the air from said quenching chamber.

2. An apparatus for coking and quenching coal comprising a coking chamber having an inlet whereby coal-may be fed to the same, also having an outlet, a quenching chamber permanently associated with the coking chamber and forming in effect-an extension of the coking chamber, oppositely of the coking chamber, oppositely disposed disposed fingers adjacent the outlet of the coking chamber, said fingers being adapted to be moved transversely-of the'coking cham* ber, other similar fingers-associated with the quenching chamber adjacent the outlet portion thereof, and an air-tight door closing the lower portion of the quenching chamber and. excluding air from said quenching chamber.

3. An apparatus for coking and quenching coal comprising a coking chamber having an inlet whereby coal may be fed to the same, also having an outlet, a quenching chamber permanently associated with the coking chamber and forming in effect an extension fingers adjacent the outlet of the coking chamber, said fingers being adapted to be moved transversely of the cokingchamber, the fioor of the quenching chamber being provided with a shoulder beneath the said ,fingers, other similar fingers associated with the quenching chamber adjacent the outlet portion thereof, and an air-tight door closing the lower portion of the quenching chamber and excluding air from said quenching chamber r 4. An apparatus for coking and'quenching coal comprising a coking chamber having an inlet whereby coal may be'fed to the same and also having an outlet portion, said coking chamber having its axis arranged in an inclined position, a quenching chamber permanently associated with the coking chamber and forming in eilect an extension of the coking chamber, said quenching chamber also having its axis arranged in an inclined positi0n,"'a gate adjacent the outlet portion of the coking chamber and adapted to be moved transversely with respect to the coking chamber, a similar gate associated with the quenching chamber adjacent the outlet,

and an air-tight door closin the lower portion of the quenching cham er and excluding air from said quenching, chamber.

5. An apparatus for coking and quenching coal comprising a coking chamber having an inlet whereby coal may be fed to the same, and also having an outlet portion, said coking chamber having its axis inclined, a

with the coking chamber and forming in effect an extension of thecoking chamber, said quenching chamber also having its axis inclined, a gate adjacent the outlet of the cokthe quenching chamber for receiving and.

transporting coke which may be delivered from the quenching chamber.

6. The process which consists in coking quenching chamber permanently associated Y coal in a coking chamber provided with a quenching chamber permanently in alinement therewith, severing a portion of a previously coked mass and holding the same as a plug at the end of a coking chamber against which plug the new charge to be coked may rest, and permitting a previously coked mass to pass into the quenching cham: her and be separated frqm the said coke plug by an air space and maintaining this relationship until the mass in the quenching chamber is sufiiciently cool. g

In testimony whereof I hereunto affix my signature, I i

ARTHUR M. SMITH.,

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