US350170A - Bone-black revivifier - Google Patents

Description

2 Sheets-Sheet 1.

(R o Model.)

J. F. STILLMAN.

BONE BLACK REVIVIPIBR. No. 350,170. Patented Oct. 5, 1886,

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(No Model.) 2 Sheets-Sheet .2.

J. F. STILLMAN.

BONE BLACK REVIVIFIER.

No. 350,170. Patented Oot. 5, 1886.

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UNITED STATES PATENT OFFICE.

JOSEPH F. STILLMAN, OF BROOKLINE, MASSACHUSETTS.

BONE-BLACK REVIVIFIER.

SPECIFICATION forming part of Letters Patent No. 350,170, dated October 5, 1886 Application filed Man-1125, 1886. Serial No. 196,48. (No model.)

To all whom, it may concern.-

Be it known that I, J osErH F. STILLMAN, of Brookline, county of Norfolk, and State of Massachusetts, have invented an Improvement in Bone-Black Revivifiers, of which the follow ing description, in connection with the accompanying drawings, is a specification, like let ters on the drawings representing like parts.

This invention has for its object to improve the construction of apparatus for drying boneblack, whereby the aqueous vapor given oft by the bone-black during the drying process is prevented from coming in contact with the main charge or mass of bone-black.

My invention is especially adapted for use in sugar-refineries, wherein the bone-black, after being used in the process of sugarrefining, is renewed or revivified.

The main object of this invention is to pre vent the aqueous vapor which is given off during the drying process from coming in contact with the main mass or charge of boneblack; and I accomplish my object by placing directly over the retorts in which the boneblack is dried a preferably inclined series of plates provided with h oppers-one for each retort-said inclined plates forming the upper wall or cover of a chamber beneath, into which chamber rise the aqueous vapor and products resulting from the combustion of organic matter contained in the bone-black, said vapor andv the products of combustion being exhausted fromsaid chamber through asuitable outlet in any usual or suitable manner.

My invention also has for its object to provide each retort with means by which the aqueous vapor and products resulting from the combustion -of the organic matter contained in the bone-black may readily pass from said retort throughout its length into the chamber referred to; and I accomplish this object by means of a sectional pipe placed in each retort, and having its upper section extended into the chamber for the reception of the aqueous vapor, said pipe being made so that a passage or opening is left between each section for the more ready passage outward of said vapor.

My invention consists, essentially, of a combustion-chamber, one or more passages or chambers communicating with said conrbustion chamber, one or more retorts in said passages, and the chute F, to contain unrevivified bone-black, combined with a plate located above the rctorts to form a chamber, E, and hoppers projecting from said plate into said retorts, said chamber receiving the aqueous vapor and products of combustion arising from said retorts.

My invention also consists of a combustionchamber, one or more passages communicating with said chamber, one or more retorts in each passage, and a preferably sectional pipe in each retort, combined with a plate located above the retorts and composed of sections, each section having hoppers and a stud to engage a bracket on a girder supported on the wall of the kiln, and by which to lock and maintain the said sections in place.

My invention further consists of details to be hereinafter described, and pointed out in the claims at the end of this specification.

Figure 1 is a vertical section of a sufficient portion of a bone-black-revivilying kiln to en able my invention to be understood, the co1nbustion-furnace and drier being but partially shown to save space in the drawing, the Gen tral pipes being mostly in elevation. Fig. 2 is an enlarged longitudinal section of one of the plates which separate the mass of boneblack from the retorts; Fig. 3, a top view of Fig. 2; Fig. 4, an enlarged sectional view of part of the pipe contained in the retorts, and Figs. 5 and 6 details to be referred to.

Inelosed within the walls A of the kiln are a series of retorts, a, preferably of iron, and preferably arranged side by side in rows in a chamber or passage in communication with the fire-ehamber a a part only of which is shown. in the drawings. Each retort a is for a portion of its length, near the top, of larger diameter, thereby forming a flange, by which said retort is supported upon cross-pieces a a", which are themselves supported by the side walls of the kiln. The cross-pieces a also rest upon cross beams I), supported by the brick-work of the kiln, and each beam b supports a girder, 1), upon which rests a flanged piece, b", the long flange b" of each piece extending into a retort, c. As shown in Fig. 1, the retorts a are arranged in pairs, and the space between the said retorts, extending the kiln, is placed a series of preferably inclined plates, m, provided each with openings 0, and

having at one end a stud, c, see Fig. 2,) which engages a bracket, 0, to lock and maintain said plate in position, said bracket being attached to a girder, 0*, supported upon the central wall A, as shown in Fig. 1, said plate forming a chamber, E, below it. Through each opening 0 in the plates m is projected a hopper or chute, (I, provided with a depending flange or lip, d, (see Fig. 6,) which fits into a groove, (2 in the plate m, about the opening 0, such construction forming a seal to prevent the passage of bone-black into the chamber E. The girder c, as herein shown, supports the inclined bottom of a bone-black chute, F, in which the bone-black to be revivified is placed, and from which said boneblaek runs through the outlet 9 down upon the plate m, and through the hopper d into the retort with which the hopper is connected.

\Vithin each retort a is placed a pipe, B, composed of superimposedsections g, each sec tion being cut away, as at 9 to form exhaustpassages for the aqueous vapor and products of combustion arising from the burning of the organic matter which has previously been absorbed by the bone-black from the sugar-solution as the latter was passed through said boneblack. Each section 9 is provided with an outwardly-projecting lip, 9, upon which the bone-black strikes as it runs from the hopper cl into the retort, said flange preventing the bone-black from entering the pipe B. The en perimposed sections 9, composing the pipe B, are each provided with a diametrical cross-bar, h, having a central opening, through which a rod, h, is extended, said rod having a nut, h", at its top and bottom, by which the sections are firmly united together, to thus constitute a single pipe, as shown in Fig. 1, the upper section of each being herein shown as provided with a flange, h which serves as an additional support for said pipe.

Instead of using the nut if, the rod It may have a slot, through which to insert a pin.

The organic matter and water contained in the bone-black are given off as gases and vapor when the bone-black is subjected to heat in the retorts, said gases and vapor passing up intothe pipe B through the openings or passages 9 and from said pipe the gases and vapor issueinto the chamber E, from which they are exhausted by any suitable means through the outlet k. The gases andvapor asthey pass through the chamberE meet the under side of the plates m, heating the said plates, and thereby effect a partial drying of the bone-black upon-thev upper surface of said plates, said partial drying expediting the operation in the retorts.

As fast as the bone-black has been rcvivilicd it is removed from the retort at its bottom in usual manner, and a fresh quantity of unrevivified bone-black descends by gravity into the retorts a through the hopper d.

The plates m, which prevent the gases and vapor issuing froxnthe pipes B from coming in contact with and being absorbed by the main mass of bone-black above them, are made in sections, as shown, in order to readily gain access to the retorts. Each section-plate is provided at its sides with flanges m, which en ter a trough-shaped girder, in}, one end of which rests against the girder c and the other upon the flanged piece N, as shown in Fig. 1, said trough-shaped girder forming a seal to prevent the bone-black from entering the chamber E.

The construction of the plates m, as shown, permits of ready access to the retorts when it is desired to make repairs either to the pipe B or to the retort itself.

1. In a kiln for revivifying bone-black, the combustion-chamber, one or more passages or chambers communicating with said combustion-chamber, one or more retorts in said passages, and the chute F, to contain unrevivified boneblack, combined with a plate located above the retorts to form a chamber, E, and hoppers projecting from the said plate into said retorts, said chamber receiving the aqueous vapor and products of combustion arising from said retorts, substantially as described.

2. In a kiln for revivifying bone-black, the combustion-chamber, one or more passages or chambers communicating with said combustion-chamber, one or more retorts in said passages, a pipe in each retort, and the chute F, to contain unrevivified bone black, combined with a plate located above the retorts and provided with hoppers projecting into said retorts, a chamber, E, being left below the said plate and above said retorts, said chamber receiving the aqueous vapor and products of combustion arising from said retorts, substantially as described.

3. In a kiln for revivifying bone-black, the combustion-chamber, one or more passages or chambers communicating with said combustion-chamber, one or more retorts in said passages, a sectional pipe in each retort, and the chute F, to contain unrevivified bone-black,

combined with a plate located above the retorts and provided with hoppers projecting into said retorts, a chamber, E, being left below the said plate and above said retorts, said chamber receiving the aqueousvapor and products of combustion arising from said retorts, substantially as described.

4:. In a kiln for revivifying bone-black, the combustion-chamber, one or more passages or chambers communicating with said combustion-chamber, one or more retorts in saidpask sages, a sectional pipe in each retort, and the chute F, to contain unrevivified bone-black,

combined with a sectional plateloeated above the retorts and providedwith hoppers projectinginto said rctorts,a chamber, 1*], being left below the said plate and above said retoris, said chamber receiving the aqueous vapor and products of combustion arising from said retorts, substantially as described.

5. In a kiln for revivit'ying bone-black, the combustion-chamber, one or more passages communicating with said chamber, and the re torts a in each of said passages, combined with the plate composed of sections m, each section having a stud, c, and one or more openings, 0, to receive a hopper, (Z, and with the girder c, lniving the bracket 0", to be engaged by the stud c, to lock and maintain the section n: in place, substantially as described.

6. In a kiln for revivifyiug bone-blaek, the combustion-chamber, one or more passages communicating with said chamber, the retorts a in each ot'said passages, and the plateloeated above said retorts and composed of sections m provided with flanges m, combined with the girder m, adapted to receive a flange, m, of each of two contiguous sections and, form a seal for said plate, as and For the purpose set forth.

7. The pipe B, composed of superimposed sections provided each with a projecting lip and passages 9 combined with the rod h, extended through said pipe, and provided with means, substantially as described, at its top and bottom to unite said superimposed sections, as and for the purpose set forth.

8. The pi pc B, composed of superimposed sections provided each with projecting lip and passages g and crossbar h, having an opening, combined with the rod l1, provided with means, substantially as described, at its top and bottom to unite said superimposed sections, as and for the purpose set forth.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses JOSEPH F. STILLMAN.

\V i i n esses G. \V. innuonv, C. M. CONE.

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