US1275962A - Plant for utilizing waste heat. - Google Patents

Description

R. 0; MARTIN. PLANT FOR UTILIZING WASTE HEAT.

2 SHEETS.SHEET l- PatentedAu APPLICATION FILED JUNE 20, I912.

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, R. I). MARTIN.

PLANT FOR UTILIZING WASTE HEAT.

APPLICATION FILED JUNE 20. I917.

Patented Aug. 13, 1918 Z SHEETS-SHEET 2- IN l/E/I/ TOR 19.0. Mar 522 ATTORNEYS m! NGRRIS FE1RS coWFnom-Lrma. WASHINGmN. u.

WITNESSES 1,275,9GQQ

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ELAN? roa u'rlmzxne wears near.

' by coke ovens.

An ob ect of the invention is to provide a simple, inexpensive and efiicient plant which can be easily controlled and which can be utilized in connection with the waste heat.

Another object of the invention is to provide a plant formed of a series of small steam units, each unit receiving the waste heat from a series of coke ovens and whereby any of the steam-plant units may be cut out without materially affecting the entire plant.

With the above and other objects in view, the nature of which will more fully appear as the description proceeds, the invention consists in the novel construction, combina tion and arrangement of parts as herein fully described, illustrated and claimed.

In the accompanying drawings, forming part of the application, similar characters of reference indicate corresponding parts in all the views.

Figure 1 is a sectional elevation on line 11, Fig. 2, illustrating the main fine of a series of beehive coke ovens and a steamplant unit associated therewith;

Fig. 2 is a plan view of a bank of beehive coke ovens, and the steam-plant unit associated therewith, part of the top of the bank being broken out to show the main flue; and

Fig. 3 is an elevation of a bank of ovens showing the small steam boiler associated therewith and means for heating the boiler independently of the coke ovens.

In the drawings, 1 is a coke-oven chamber provided with an outlet 5 in the dome carried through the dirt bed 6 covering the dome of the oven. A. cover 7 is provided for the discharge to the outlet 5 whereby the same may be maintained open or closed. Each of the series of ovens which is to supply heat to the steam-plant unit 8 is connected by an angling flue 9 extending from the outlet 5 of the oven to the main flue '10 running between the parallel rows of the ovens.

- Specification of Letters Patent.

Patented. Aug. 213, 1918.

I Application filed time 20, 1917. Serial No. waves.

The steam-plant unit is preferably mounted on the bank of the ovens in close proximity to one of the faces of the bank, so that an independent fireplace 11 could be provided for the boiler of the steam-plant unit between a pair of colreovens, as shown in the drawings. This fireplace is connected to the main flue 10 by a flue section 12. The grate 13 for the fireplace 11 is accessible through a fire door 16%, and a draft door 15 leads to the ash pit. The two doors are maintained closed when the heat from the coke ovens is to be utilized for heating the boiler 8. A. suitable Smokestack 16 is provided for the boiler to carry off the hot gases coming from the coke ovens to the boiler.

All the boilers or steam units of the plant may be connected to a steam main 17 embedded in the dirt cover of the ovens, which dirt being bot will prevent condensation in the main. Each of the boilers is connected to the main by a suitably insulated conduit 18 extending from the steam dome 19 of the boiler to the main.

The coke ovens may be operatedv in the usual manner by removing the cover 7 from the outlet 5 and leaving the fire doors of the boiler open. By closing the angling fines 9 at the outlet5 by bricks or by a gate operable from the dirt bed, the coke ovens may be cut oil from the boiler. In consequence, the same may remain idle'with or without water without being damaged, as the gases from the oven will not pass into the fines communicating with the boiler. On the other hand, when it is desired to cut a boiler into the steam plant it is maintained filled with water, the fire box is closed, the angling fines are brought into communication with the outlets 5, and the covers 7 are put over the outlets. This operation, it will be noted, does not in any way afiect the process of coking the coal, as the operation of the oven is the same whether the cover is on or off the outlet 5.

Any type of boiler may be used and connected with as many ovens as necessary to obtain the desired amount of steam. As previously pointed out, it is preferable to have the plant formed of a large number of small units, so that the cutting in or out of one or more of the units of the plant will not affect the entire plant materially. These boilers may be set at any desired relative position to the coke ovens, as the type of boiler and its position relative to'theplant will have to be taken into considerationmOf' course, the result will be the same.

I claim: 1. A plant for utilizing waste heat from coke ovens, comprisinga bank of coke ovens arranged in two parallel rows, each oven havlng 111 its top a tubular neck 'closedby'a cover, a main fl'ue extending between therows of ovensand -in engagementiwith the several ovens: intermediate their tops and bottoms, a curved branch flue for each oven,

Copies '0! this, patent may'rbe obtai-ndtor' steamgenerating unit and between a pair of the ovens and-a flue leading from the main flue into the furnace flue.

2. A plant-for utilizing waste heat from coke ovens, comprising a plurality of ovens arra-nged -iniparallel rows, each oven having in its top a tubular neck closed by a cover, a main flue extending between the rows of ovens, a branch flue for each oven, leading from the neck of the oven below itscover, to'

l the main'flu'e, a steam generatingunit, a furnace having aflue'andarranged belowthe said unit and'between the outer portions of two ovens, and a flue leading from the -I1'1EL111 1 flue between the two SEUClOVGDS into thcfurnace flue.

RICHARD 'D. MARTIN.

five cents sac-1r,ti -addressing thy-Commissioner o'L-Pate'ntg Washington, .D. C."

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