US1497769A

US1497769A - Coke-oven construction

Info

Publication number: US1497769A
Application number: US322515A
Authority: US
Inventors: James A Bishop
Original assignee: Individual
Current assignee: Individual
Priority date: 1919-09-08
Filing date: 1919-09-08
Publication date: 1924-06-17
Anticipated expiration: 1941-06-17

Description

June 17 1924. 1,497,769

J. A. BISHOP COKE OVEN CONSTRUCTION Filed Sept. 1919 2 Sheets-Sheet 1 f2 Menfir June 17, 1924. 1,497,769

r J. A. BISHOP COKE OVEN CONSTRUCTION Filed Sept. 8, 1919 2 Sheets-Sheet 2 Patented June 17, 1924.

um A. BISHOP, OI GEIGAGO, ILLINOIS.

COKE-OVEN consrnpc'rron.

Application filed September 8, i918. Serial Io. 322,516.

To all whom it may concern:

Be it known that I, JmnsA. Blsnor, a citizen of the United States, residin at Chicago, in the county of Cook and tate of IlllllOiS, have invented certain new and useful Improvements in Coke-Oven Constructions, of which the following is a specification.

The present invention has to do with cer- 1o tain improvements in coke oven constructions. Certain features of the invention have reference to coke oven constructions so arranged that the necessary coking period Within the coke oven proper may be shortened, thereby increasing the out ut or capacity of the installation. Anot ler object in this connection is to make it possible to so shorten the coking period while at the same time ensuring a ogractically complete recovery of the by-pr nets in good form and without damage to the coking operation. I will state at this point that the coke produced in the so-called Bee-Hive ty .e of oven derives many of its desirable qua 'ties from the fact that the coking period isextended over a considerable length of time, so that an annealing action or process takes place which beneficially alters or modifies the coke structures. The Bee-Hive oven, however, presents the objectionable features that the by-products are lost or wasted, and also the coking period is relatively long, so that the yearly output of a given installation is relativel small.

One of the o jects of the present invention is to provide, in combination, with a coke oven of suit-able construction, a chamher or compartment within which the hot.

coke delivered from the main coking chamber is retained for a certain length of time out of contact with the air, so that the annealing or similar process may continue without oxidation even afterthe coke has been discharged or delivered from the coking chamber or retort.

Other objects of the invention are to pro vide an improved feeding mechanism and construction for continuously delivering the raw coal into the coking chamber, and for moving the coking material through said chambers to the point of discharge either to the atmosphere or to an annealing chamber such as I have previously mentioned.

Another object of the invention is toprovide means for the introduction of steam,

air or other into the bod of the coking material un er control, so t at the nature and uality of the completed coke may be accor ingly altered or controlled.

Other objects of the invention are to rovide a type of coke oven construction w 'ch shall be very well adaptedfor the treatment of oil shales for the dlstillation of oil therefrom. When the apparatus is used for the distillation of such material, it performs functions similar, in many respects, to those of an ordinary coke oven, but the operating conditions are such that the apparatus should, in some respects, be modified in order to distill the oil shales to the best advanta I may state in this connection that in t e distlllin of such materials use is ordinarily made 9 a lower temperature than is used 1n ordlna GOklIlg operations, and, therefore, one o the features of the invention has to do with the provision of arrangements whereby the temperature may be modified within the cokin chamber, while at the same time beneficlally affecting the vapors distilled oil from the shales.

Other objects and uses of the invention will appear from a. detailed description of the same Which-consists in the features of construction and combinations of parts hereinafter described and claimed.

In the drawings: I

Figure 1 shows a vertical section through the central portion of the typical coke oven embodying certain features of the present invention' an Fig. 2 shows a vertical section through an annealing chamber or the like which may be used in conjunction with? a coke oven structure for the annealing or similar treatment previously mentioned herein; and

Fig. '3 shows diagrammatically an arrangement in which two ovens such as that shown in Fig. 1- can deliver material to a common annealing chamber such as that shown in Fig. 2.

I will state in the first place that for the practice of the feature involving the subsequent or annealing treatment, any suitable type of retort oven may be used, but the oven construction which I will now describe in detail is very well adapted for this particular purpose. This particular oven includes a circular chamber 3 having the floor 4 and a dome-shaped roof 5. Within the chamber is rotatably mounted a vertical pivotal memher 6 from which are a plurality the coking chamber.

of radial arms 7 and 8. On each of these arms is mounted one or more shovelsor the like 9 set at an inclination or angle, so that, r

u 1i rotat' the entire mechanism coal or olli r material introduced irito the;

central portion of the chamber will gradually worked or forced in a radial direction towards a discharge 10. v

e arms 7 and 8 are preferably hollow, and in like manner the pivotal member 6 a vertical passage 11 in its lower portion through which cooling water may be circulated mto the arms. One or more diagonal sta s or the like 12 and 13 have their outer en in communication with the end portions of the arms, and have their inner ends in communication with a vertical passage 14. Co uently the water circulated throu h the f' dial arms may return inwardly to t e diagonal stay members and be discharged upwardly out of the arms. The pivotal member communicates with a stufing box 15 at its lower end, and with a stu'flingf box 16 at its upper end, so that the water may be initially introduced through the pipe 17, and

finally discharged through the pilpe 18.

type are Constructions of this genera shown and described in Letters Patent of the United States No. 1,166,175 issued to me under date December 28, 1915. V r

In the present construction the coal, shale or other material is introduced in the first instance into a hopper or the like 19 from which it is moved by a conveyor 20 to a central ho per 21 contained within a gas chamber or sea l 22 above the upper central portion of One or more chutes 23 extend downwardly in spiral fashion from the hopper 21 to a delivery spout 24 through which the raw material is delivered into the central portion of the floor 4. The hopper 21 with the spiral chute 23 and spout 24 rotate with the stirring or transferring mechanism, so that the coal or other material is uniforml delivered around the central portion of t e floor. The distillate gases pass upwardly through an anular opening 25 into the chamber 22, and a discharge connection 26 leads from the chamber 22 to a suitable gas receiving mechanism.

One or more of the shovels may be hollow and provided with perforations or openings 27. A steam ipe 28 extends down through the interior 0 the passage 14 and delivers steam into a chamber 29. From this chamber the steam passes ondown and is delivered to the interior portions of the shovels 27 throu h the

connections

30 and 31. The heat of tie coking chamber serves to superheat the steam before it reaches the shovels. It will be observed that by this construction the steam ma be delivered into the body of the coal or '0 or material undergoing treatvnew? or exit point or openor my ber 33 in t e lower central portion of the V foundation. A thrust bearing 34' seryee to carry theload of the rotating mechamsm. at Y a point where the temperature is normal, so that the wearing qualities of the thrust hearing will not be interfered with.

' In order to provide a seal inst the loss of distillate gases, and in or er to prevent the entrance of dust into'the bearing parts, a sleeve 35 is provided surrounding the hollow shaft member 11, said sleeve having a flange 36 which is embodied in, the foundation structure, and a st box 37 closes the lower end of the sleeve in close engagement with the rotating shaft so as to prevent the loss of It was previously e the objects of the invention is toprovide for further treatment or annealing of the coke when the apparatus is to be used for the manufacture of coke. For this purpose, I have provided a chamber 38 shown in perspective in Fig. 2, which chamber has one or xplained that one of more entrance openings 39 and 40, through which the coked material may be introduced into it from one or more adjacent coke ovens. For example, two ovens such as that above described may deliver their product into this chamber through the openings 39 and 40. When the annealing chamber is used in conjunction with two coke ovens, it will be understood that the annealing chamber may perform double duty, and m such case the annealing time may be greater than the coking time without interfering with the continuous or most economical operation of either the'oven or annealing chamber. 7

The annealing chamber is provided with a slanting floor 41 which leads towards a breaker and conveying mechanism by means of which the annealed coke may be delivered from the chamber under seal. For this purcome into operation in succession. In this way the load on the shaft 45 is made rectically uniform and the operation of t e machine is correspondingly improved. As the coke works down towards the breaker, portions are broken off from its lower edge and delivered into the trough where they are j quenched and then removed by the conveyor.

In order to prevent bridging of the coke, I have provided a lpair of rock shaftsv 47 and 48 which carry t e lugs 49 working within slots 50 in one of the walls of the chamber. By periodically rocking these shafts, the coke will be forced down against the breaker and the formation of bridges will be prevented.

While I have herein shown and described only certain embodiments of the features of the present invention, it is understood that I do not limit myself to the embodiment except as I may do so in the claims.

I claim:

1. Coking apparatus comprising in combination an annealing chamber having a downwardly slanting floor leading to a breaker pit, a rotary breaker within said pit, means for removing broken material from said pit under gas seal, together with a continuous coke oven located at each side of said annealing chamber, a delivery passage from each of sad coking chambers to the annealing chamber for the delivery of coke onto said floor,

and means within each of said coking chamsubstantially as described,

here for delivering coked material throu h its passage into the annealing chamber, s stantially as described.

2. Coking apparatus comprising in combination a substantially air tight annealing chamber having a downwardly slanting floor and a pair of opipositely disposed openings for delivering co ed material onto said floor, together with a continuous process coke oven at each side of the annealing chamber in osition for the continuous delivery of 00 ed material through its 0 ning onto said floor, substantially as describzd.

3. Coking apparatus comprising in combination a substantially air tight annealing chamber having a downwardly slanting floor and a pair of oppositely disposed openings for delivering material onto said floor, together with a coke oven at each side of the annealing-chamber adapted to deliver coked material throu h the corresponding openin into the annefiingchamber under air sea g JAMES A. BISHOP.