US1865336A - Apparatus for cooling coke - Google Patents

Description

June 28, 1932. J. w. REBER 1,865,336

APPARATUS FOR COOLING COKE Original Filed May 21, 1926 5 Sheets-Sheet l June 28, 1932. J. w. REBER 1,865,336

APPARATUS FOR COOLING COKE I Original Filed May 21, 1.926 3 Sheets-Sheet 2 E5701? F/EE r085 50/1536.

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APPARATUS FOR COOLING COKE 5 Sheets-Sheet 3 5/4 61! PASS F/BE TUBE B0/LEB.

Viv/26d Zflz eeaer- 7 9 Original Filed May 21, 1926 June 28, 1932.

Patented June 28, 1932 UNITED STATES JAMES WILSON REBER, OF LONDON, ENGLAND APPARATUS FOR COOLING COKE Original application filed May 21, 1926, Serial No. 110,707, and in Great Britain. May 25,.1925. Divided. and this application filed October 2, 1928. Serial No. 309,705.

In my U. S. application Serial No. 110,707, filed 21st May, 1926, of which the present application is a division, I have described a process of cooling coke by circulating gases through the hot coke and a heat recovery apparatus, according to which process a considerable reserve of hot coke is maintained above the body of coke through which the gases are circulating, and this reserve is caused to travel into the gas stream at a rate as constant as possible.

The present invention relates to an apparatus for carrying out the aforesaid process.

I will now describethree forms of the apparatus in illustration of my invention, but it will be understood that the invention as defined in the appended claims is not limited to the particular constructions described.

In the accompanying drawings, Fig. 1 represents a vertical section through a coke cooling'plant constructed according to the invention; Fig. 2 shows a vertical section through a coke cooling chamber according to the invention havin a acket forming a waterspace in communication with the waste heat boiler of the plant; Fig. 3 shows a modi- Iication of Fig. 2.

Referring to Fig. 1 the cooling chamber a. is constricted at its lower end and has an inclined bottom Z), at the lower edge of which is a coke discharging device 0 which may be constructed in accordance with British Patent specifications Nos. 15,053 of 1907 and 12,070 of 1908, and shown more clearly in The IVoodall-Duckham System of Continuous Carbonisation in Vertical Retorts 1928, pages 22-27. This device is rotated on its axis and in conjunction with hangers d determines the regular discharge of the coke from the cooling chamber into the receiver 6. The latter is connected with the cooling chamber in air-tight manner and is provided at lower end with a water-sealed door f of known kind which is opened periodically to discharge the coke.

An outlet pipe 9 situated at about the middle of the height of the chamber it connects the latter with the products inlet chamber it of the waste heat boiler 2', of which the products outlet chamber h is connected with the plate a shown in dotted lines.

intake ofa fan is whose discharge is connected with the receiver 6. The fan, therefore, circulates the cooling gases through the lower half of chamber a and the waste heat boileri.

The chamber a is kept substantially full of V for discharge into the hopper m, and thence into chamber a.

The telpher carriage then recedes and the plate a descends to close the chamber. In

I no case is the level of the hot coke in chamber a allowed to fall to the level of the outlet pipe:

As isknown, 1t is advisable to substitute cont nuously or intermlttently, fora portion of the circulating gases, a like portion of an to ensure combustion of any combustible gas I whlch may be generated in the cooling chamber.

. this air is drawn through a valve 9' into pipe In the construction shown in Fig. 1

g, so that the combustible gases are burnt in the waste heat boiler, and the corresponding volume of gases is expelled through valve k on the discharge side of the fan is.

- In Figs. 2 and 3 the parts already described have the same letters as those already used.

In Fig. 2 the water inthe water jackets is circulated by a pump n through a worm 0 in the feed water tank 79 of the waste heat boiler 2'. The tank p has an automatic feed 9.

In Fig. 3 the upper part 1* of the jacketo constitutes the steam space of the waste heat boiler 2', the lower part or watersp-ace of the jacket being connected as shown by pipes s and t with the water space of the boiler 2'.

Alternatively, the pipe 25 may be omitted and both the space 1 and the boiler 2' connected with the steam; drum. u, as shown in dotted lines.

the said inventionand the best means I know All? of carrying the same into practical effect, I claim 1. Apparatus for cooling coke, comprising a substantially vertically elongated chamber open at its upper end, a closure for the upper end capable of removal to permit introduction of a substantial mass of hot coke into the chamber, continuously operable means at tial distance from each end of the chamber,

the portion of said chamber at and above the level at which said uppermost duct opens thereon being of substantially uniform crosssection, and means for causing gases to circulate through the heat recovery apparatus, through the portion of the chamber between the lowermost and uppermost ducts, and

through the ducts.

2. Apparatus for cooling coke, comprising a substantially'vertically elongated chamber open at its upper end, a closure for the upper end capable of removal to permit introduction of a substantial mass of hot coke into the chamber, continuously operable means at the lower end of the chamber for discharging coke therefrom, a heat recovery apparatus, ducts connecting and forming the sole means of communication between the heat recovery apparatus and the chamber, said ducts comprising a lowermost duct which'opens onto the chamber in close proximity to the lower end thereof and an uppermost duct which opens onto the chamber at a point a substantial distance from each end of the chamber, the portion of said chamber at and above the level at which said uppermost duct opens thereon being of substantially uniform crosssection, means for causing gases to circulate through the heat recovery apparatus, through the portion of the chamber between the lowermost and uppermost ducts, and through the ducts, means for admitting air intothe heat recovery apparatus and a valve for the escape of gases on the discharge side of the means for circulating gases.

3. Apparatus for cooling coke, comprising a substantially vertically elongated chamber open at its upper end, a closure for the upper end capable of removal to permit introduction of a substantial mass of hot coke into the chamber, continuously operable means at the lower end of the chamber for discharg ing coke therefrom, a heat recovery appara tus, ducts connecting and forming the sole means of communication between the heat recovery apparatus and the chamber, said ducts comprising a lowermost duct which opens onto the chamber in close proximity to the lower end thereof, and an uppermost duct which opens onto the chamber at a point at a distance from the upper end of the chamber approximately equal to half the height of the chamber, and means for causing gases to circulate through the heat recovery apparatus, through the portion of the chamber between the lowermost and uppermost ducts, and through the ducts.

V 4. Apparatus for cooling coke, comprising a substantially vertically elongated chamber open at its upper end, a closure for the upper end capable of removal to permit introduction of a substantial mass of hot coke into the chamber, continuously operable means at the lower end of the chamber for discharging coke therefrom, a heat recovery apparatus, ducts connecting and forming the sole means of communication between the heat recovery apparatus and the chamber, said ducts comprising a lowermost duct which opens onto the chamber in close proximity to the lower end thereof and an uppermost duct which opens onto the chamber at a point at a distance from the upper end of the chamber approximately equal to half the height of the chamber, means for causing gases to circulate through the heat recovery apparatus, through the portion of the chamber between the lowermost and uppermost ducts, and through the ducts, means for admitting air into the heat recovery apparatus and a valve for the escape of gases on the discharge side of the means for circulating gases.

In testimony whereof I have signed my name to this specification.

JAMES WILSON REBER. [1 s.]

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