US442600A - Nest willi imharvey - Google Patents

Description

(No Model.) 3 Sheets-Sheet 1.

E. BIEDRRMANNXE E. W. HARVEY.

APPARATUS lPOR UTILIZING WASTE GASEOUS PRODUCTS.

lPaJcem'ced Deo. 16. 1800.

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Patented Dec. 16, 1890.

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E. BIEDERM-ANN xv E. W. HARVEY. APPARATUS FOR UTILIZING WASTE GrASEOUS'lRODllTG'lS-v No. 442,600. Patented Dec. 16, 1890.

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UNITED STATES rPATENT Garros.

EMIL BIEDERMANN AND ERNEST IVILLIAM IIARVEY, OF lVESTMINS'IER, ENGLAND, ASSIGNORS TO FREDERICK SIEMENS AND ALEXANDER SIEMENS, OF SAME PLACE.

APPARATU S FOR UTI LIZI NG WASTE GAS EOUS PRODUCTS.

SPECIFICATION forming part of Letters Patent No. 442,600, dated. December 16, 1890.

Application filed August Z6, 1889. Serial No.322,062. (No model.) Patented in England November 18, 1884:,v No. 15,127.

To aZZ whom t may concern:

Be it known that we, EMIL BIEDERMANN, a citizen of the Swiss Confederation, and ER- Nasr WILLI AM HARVEY, a subj ectof the Queen of Great Britain, both residing at 10 Queen Annes Gate, Westminster, in the county of Middlesex, England, have invented a new and useful Improved Apparatus for Utilizing lVaste Gaseous Products, (for which we have obtained a patent in Great Britain, dated November 1S, 1884, No. l5,l27,) of which the following is a specification.

It has been proposed to utilize gaseous products of combustion from furnaces by causing them to pass through incandescent fuel, so that the carbonio anhydride which 'they contain may become converted into carbonio oxide capable of serving for combustion.

Our invention relates to means of thus utilizing products of combustion as they escape in a highly-heated state from regenerative gas-furnaces. For this purpose we provide near the furnace a chamber arranged with suitable means for charging it with fuelsuch as coal, coke, or anthracite-and for removing` ash, and with inlet and outlet passages for the gases. Having iirst raised the fuel to a state of incandescence, which may be done by admission of air, as in ordinary gas-producers, we by means of an artificial draft, which ma)T be produced by a jet of steam or gas, or by a fan or blower, cause to pass through the hot fuel a portion of the hot gaseous products of combustion from the furnace, these having themselves sufficient heat to maintain the fuel at a temperature suitable for conversion of the carbonio anhydride into carbonio oxide, which, with other gases produced, is returned to the furnace to burn therein. Two fuel chambers may be employed to operate alternatelyin the following manner: \Vl1ile the one chamber is acting, as above described, for conversion of carbonio anhydride into carbonio oxide, the other chamber, containing highly-heated fuel, may act as a regenerator, heating the combustible gases passed through it before they enter the furnace. As only a portion of the gaseous products of combustion can be heated in the manner described, the remainder is passed through a regen erator for the purpose of heating the air-supply of the furnace in the usual way. The forms and arrangements of the .chamber or chambers may be varied.

The accompanying drawings show several arrangements as examples, illustrating how our invention may be carried out in practice.

Figure l is a longitudinal section, and Fig. 2 is a transverse section, showing our invention applied to a retort-furnace. From the upper chamber, containing the retorts R, a

lportion of the gaseous products of combustion is caused, by means of a jet B of steam or gas, to descend a flue A to the mass of hot fuel F, through which it passes, so that the carbonio anhydride which it contains, by taking up additional carbon from the fuel, becomes converted into carbonio oxide. This, with the other gases produced, ascends to the retort-chamber, where they are burned with the hot air supplied through the regenerators S S. C is a passage that can be opened when required for admitting air or stowing the fuel. D isa door for removal of ashes, and E the opening for feeding the fuel, which in this case may be hot coke as it is drawn from the retorts R.

Fig. 3 is a longitudinal section, and Fig. 4 a transverse section, of a retort-furnace operating as already described with reference to Figs 1 and 2, the feed-opening E being in this caso made through the bottom of the retort R.

Figs. 5, G, and 7 are sections showing several forms of chambers and their passages, suited for operating in correspondence with the alternating action of the regenerators of a regenerative gas-furnace. In these the passages are arranged symmetrically on each side of the fuel-chamber. The jets B B or valves V V and XV XV are provided in duplicate, so as to direct the current either as shown in the figures or in the opposite way. Thus when the regenerator R on the one side is being heated by the products of combustion from the furnace and the regenerator R', which has been previously heated, is heating the airpassing to the furnace a portion of the products from the furnace is caused to pass through the hot fuel F in the direction shown. When the action of the regenerators is reversed, the jets and valves are also reversed to send the products in the opposite direction through F.

Fig. 8 is a section of a regenerative gasfurnace, to which two fuel-chambers F .F are applied; and Fig. 9 is a longitudinal section of one of these chambers. While a portion of the products from the furnace is caused to descend the flue A and to pass through the hot fuel F, the combustible gases produced in the chamber F, along with such as may be supplied by a pipe K from another source, are caused to pass along a cross-flue H and down' through the previously-heated fuel in F', so as to become heated before they ascend the Hue A to the furnace. The current through F and F may be caused by a jet B in the flue H, this jet being directed in the opposite Way when theregenerators R R are reversed. G are passages for admitting air, if required.

Figs. l0 and l1 show a similarl arrangement with the upper part of the fuel-chambers F and F made with cro'sspartitions P P, with openings through them, so that the hydrocarbons evolved from the upper layers of the fuel pass down with the products from the furnace and through the hot fuel below. These hydrocarbon products might, however, be led off separately, as shown in Fig. l2, by a fine L for that purpose.

Ilaving thus described the nature of our invention and the best means We know for carrying the same into practical effect, we claim- 1. The combination, in a regenerative gasfurnace, of a furnace or combustion-chamber, a regenerator in which the air for supporting combustion is heated, a gas-producing or fuel chamber external to the combustion-chamber, lines for conducting the air and gas from the regenerator and the gas-producer to the combustion-chamber, and flues connecting the combustion-chamber with the regenerator and the gas-producer, whereby a part of the Waste gases from the combustion-chamber passes through the regenerator and a part passes to the gas-producer, substantially as and for the purposes described.

2. The combination, in a regenerative gasfurnace, of a furnace or combustion-chamber, a regenerato'r in which the air for supporting combustion is heated, a gas-producingor fuel chamber external to the combustion-chamber,

.ilues for conducting the air and gas from the regenerator andthe gas-producer to the combustion-chamber, fines connecting the combustion-chamber with the regenerator and the gas-producer, whereby a part of the Waste gases from the combustion-chamber passes through the regenerator and a part passes to the gas-producer, and a blast-pipe arranged in the ue leading from the combustionchamber to the gas-producer, substantially as and for the purpose described.

3. The combination, in a regenerative gasfurnace, of a furnace or combustion-chamber, reversing-regenerators arranged in Iiues leading to the stack at the opposite sides of the combustion-chamber, a gas-producing chamber or chambers external to the combustionchamber, ues leading from the regenerators and the gas-producer to both sides of the combustion-chamber, and flues leading from both sides of the combustion-chamber to the regenerator and` the gas-producer, whereby a part of the waste gases from the combustioncha-mber passes through the regenerator and a part passes to the gas-producer, substantially as and for the purposes described. In' testimony whereof we have signed our names to this specification, in the presence of two subscribing witn esses, this 9th day of August, A. D. 1889.

EMIL BIEDERMANN. ERNEST VILLIAM HARVEY.

'Witnessesz VALTER J. SKERTEN. WV. J. NoRWooD, Both of 17 Gfrctcechurch Street. London, E. C'.

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