US340302A - fisher - Google Patents

Description

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'Gn W. FISHER.

BAGASSE BURNER. No. 340,302. Patented Apr. 20, 1886.

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G. W. FISHER.

BAGASSE BURNER. No. 340,302. b. Patented Apr. 20, 1886.

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UNITED *rares GEORGE XV. FISHER, OF ST. LOUIS, MISSOURI, ASSIGNOR OF ONE-HALF TO THE FULTON IRON VORKS, OF SAME PLACE.

BAGASSE- BURNER..

'PECIFECATION forming part of Letters Patent No. 3-.l0,302,` dated April 20, 1886.v

Application lerl December 15, 1885. Svrial No. 185.748. (No model.)

To @ZZ whom, it may concern:

Be it knownthat I, GEORGE W. Frstinn, of

St. Louis, in the county of. St. Louis and State of Missouri, have invented certain useful linprovenients in Bagasse Burners or Apparatus, of which the following is a specification, reference being had to the accompanying drawings, in whichm Figure l is a plan View of my improved apparatus. Fig. 2 is asection of the same on the line 2 2 of Fig. 3. Fig. 3 is a longitudinal vertical section of the same; and Fig. 4 is a section on the line 4 4 of Fig. 3.

Heretofore bagasse-burners have been imperfect in construction and wasteful in their operation. Y

M-y object is to produce a rapid'rate of combustion by means of a burner supplied with a forced draft, to perfect the combustion by reverberation, and to utilize the products of combustion to the best advantage and with the least waste of heat.

In some bagasse-lmrners openings have been made in the top, both for supplying the bagasse and for the escape ofthe products of combus--i In these burners combustion is slow and tion.

ulate combustion. The result is I get rapid initial combustion ofthe bag-asse in the burner, lthen rcverberatory action upon the hot gases, causing their combustion, and linally the utilization to the best advantage of the high degrec of heat produced for raising steam.

Referring. now, to the drawings for a description in detail of myimproved apparatus, A indicates the bagasse burner or chamber; B, 6c the furnace below it; O, the reverberatory-furnace. and D the low-down nest of boilers.

To go more into detail, E indicates an endless belt or carrier, which may be assumed to be for the purpose of delivering the bagasse as it comes from an adjacent cane-mill, where thejuice is pressed from the cane and the residuum or bagasse-iber is delivered onto the endless belt, thence down a chute, or it may be into a hopper, F, to feedrolls G, which 7c pass it into the interior of the burner directly over the furnace. In this furnace H indicates the grates, I blow-pipes, which may be supposed to be connected with an ordinary blower -that forces air through them, thence through the tuyeres K into the fire-box L. The products of combustion pass thence over the firebridge M into the reverberator, having its side walls and crown ol' tire-brick N supported by fire-brick piers O, The arch is depressed, as So imperfect, and the heat is not utilized. In other bagasse-burners an opening has been provided 1n the top for receiving the bagasse' dcrneath boilers and thence out through a high chimney. believe, blowers have been used to improve the draft. This is an improvement upon those first described, but is still far from satisfactory.

In connection with my burner I provide a small opening at the top through which, by means of feed-rollers receiving the bagasse from an endless belt or carrier directly from a cane-mill, it is delivered into the burner. This burner is provided with a furnace at its bottom, a dre-bridge at one side of the furnace, and a reverberatory arch on the same side, making an opening low down in the burner through which the products of combustion pass, and thence impinge against the lower surfaces of a nest of lowdown boilers, and dually pass out through the boiler-dues into a chimney. I also provide a series of tuyeres and a blower to force a draft and stimand another opening below for permitting the l products of combustion to pass out and un- In some of these latter furnaces, I i

shown in the section Fig. 3, so that the products of combustion are driven more directlyT against it than they would otherwise be to secure better reverberatory action on the gases, as is well understood in the construction of re- 8 5 verberatory-furnaces. At the same time this arch is increased in width, as illustrated in Fig. l, at the end where it enters under the boilers I. Thus combustion of the gases is promoted and intensified, and the heat is evenlydis- 9o tributed upon the exposed boiler-surfaces.

I prefer to use boilers of' the type illustrated, in which inclined tubes Q, connecting with one end of the boiler and lower down with a muddrum R at the other, are employed. This mud-drum is connected by vertical tubes or legs S with the opposite end of the boiler, which is provided with fire-dues (not shown) in its interior, and a chimney, T, as is well understood. well known, gives an excellent circulation of water and a thorough utilization of heat for This form of boiler, which is 10o steam-generation. Another boiler, or series of boilers, U, at right angles with the lower nest may be employed, if desired.

The arrows in Fig. 3 indicate the direction of delivery of the bagasse into the burner, and also the direction taken by the products of combustion. f

V indicates an opening provided with a tight-fitting door on one side of the burner for cleaning it out.

Having thus described an apparatus c0ntaining my improvements, what [claim as new, and desire to secure by 4Letters Patent of the United States, isn

1. The combination of the hagasse-ehamber A, the furnace B, below the floor or hearth of the chamber A, al side opening. V, for clean ing out the bagasse-chamber, a receiving opening at the top of the bagasse chamber pro-V vided with feediollers, and areverheratory arch at one side, substantially as described.

2. The combination, with a bagasse-bnrner having a feed-opening at its top and a furnace at its bottoni, of blow-pipes and tnyeres below the bottom of the burner and a reverberatory arch at one side, substantially as set forth.

3. The combination, substantially as set forth, of the bagasse-cha|nber having a feedopening in its top, a furnace located directly under said opening and below the floor of the chamber, a discharge-opening at one side'of the chamber, and the reverberatory arch over said discharge-opening, substantially as described. p

4. The combination ofthe burner A, having a feed-opening at its top and a furnace below its door, of the lire-bridge and the reverberatory arch depressed Vand widened as it extends away from the opening into it from the burner, substantially as described.

In testimony whereof I have hereunto subscribed my name.

GEORGE W. FISHER.

fitnessesz WALTER B. CARR, H. T. M CUNE.

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