US1081960A - Muffle-furnace. - Google Patents

Description

L. C. HAMLINK.

MUFFLE FURNACE.

APPLICATION FILED 0GT.9, 1911. RENEWBD 0GT.13, 1913y 1,081,960.. Patented De@.23,1913.

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L. C. HAMLINK.

MUPFLE PURNACE.

APPLICATMN FILED 0019.1911. RENBWBD 0012.13, 191s.

1,081,960, Patented Dec. 23, 1913.

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9% W M M2M/Ufff strains il) Vgl l an @lill MZENR HAMLINK, F CLEVELAND, OHIO, ASSIGNE TO THE GAS lilAGHIN'IIIRY OMPANY, 0F CLEVELAND, (EH10, A CGBPQEMLJ'XGN 0F OHIO.

MUFFLE-FURNACE.

Specification of Letters Patent.

.tta teni-ted Dec. 23, 191%@ Application filed Getober 9, 1911, Serial No. 653,692. Renewed Qctober 13, 1913. Serial No. 794,996'.

.Tb ailwiomz' may' concern:

Be it known that l, LAZENBY C. HAMLINK, citizen of the United States, resident of Clevelanth'eounty of Cuyahoga, ani State of Qhio, have invented a new and useful improvement in Mulde-Furnaces, of which the following-is a specification, the principle of the invention being herein explained and the best mode in which I have contemplated applying that principle, so as to distinguish it from other inventions. Y

My invention, while. having general reference as entitled, to a inutile-furnace, 'relates partieulfnly to the form of furnace construction, and is still more specifically directed to the relative disposition of partitions and distributing flues.

The object of this invention is the-provision of an apparatus which shall combine. with economy of construction, a measurably increased economy of operation.

The said invention consists of. means which are hereinafter fully described and particularly pointed out in the claims.

The annexed drawing and the following description set forth in detail certain. mechanism embodying-the invention, the` disclosed means. however, constituting but ein` ot various mechanical forms in which the principle otthe invention may be applied.

Referring to the drawing, Figure l represents a vertical section of an apparatus embodying my invention. Fig. 2 is a horizontal section on line II#II of Fig. l, looking in the direction of the arrows.

The figures represent in the main, as regards exterior outline, the approved modernday type of inutile-furnace adapted for use in connection with .gas-producing apparatus. Se much only will be described as appertains to the essence of this invention and as will serve to afford a ready understanding of the operation. As already stated, the elemental. features .consist in an arrangement of oven partitions and intermediary tlucs such lthat. the desired results may be elfected. Referring to F ig. l., a gas generator is desig by the reference letter A, and

inclu in its lower construction a furnace comprising a grate c and fire-door a2. Ait the top-of the generator a suitable charging opening o3 is provided. The casing B is located some distance above the bottom of the generator, as is usual, in order topermit dumping conveyances to be moved of the two chambers.

underneath. in the oven B, a plurality of retorts C, (in this instance eight) are represented. These retorts, as shown, may be arranged in two rows of four each, running parallel with the wall interposed between the oven and theA generator, as clearly appearing in Fig. 2. All the retorls extend vertically the entire height of the casing, and are provided above and below with suitable charging and dumping appliances, not shown. lt has generally been found best to connect the two rows of retorts through the medium of stiflening studs c, and also with the inner walls of the casing. The casing B, in accordance withA the illustrated form of my invention, is first divided in half by the substantially horizontal vpartition 7)', to form upper and lower heating chambers having no directeommunication with each` other whatever. Each of these chambers is then again divided in half by twohorizontal members Z22 b2 serving as baille-plates, which are, however, each provided with four openings designated as b3. These openings are located as most clearly shown in Fie. :2, between that inner vertical wall o* ein the casing farthest removed from the generator, and the outer sides of the four respectively adjacent retorts. Heretofore these heating chambers have been connected with each other in series forming a single passage for the gases of combustion, but by my im-, proved construction it will be noted, as will hereinafter appear, that this passage or course is divided into distinct and separate passages. Depending from each of these plates b2, and positioned immediately beneath the openings 723, are .two bag-walls each designated as b5. These bag-walls b may be. as shown, of greater crossseclional area than the openings b3, such that they may be firmly fitted between the inner wall and the particular retort adjacent thereto. and should furthermore extend somewhat nearer the bottom As will now be evident, any gaseous mixture intended to reach the upper division of the heating chambers through thev openings b3V is, after naturallyr rising in the lower divisions, drawn downwardly to permit of its passage'through these walls and on into the upper divisions.v lt is this momentary retention of the gases, due to the sinuous'course they are in such wise compelled to take, which is' calculated to more uniformlyapply the heat. All the partitions just mentioned may be secured in any approved manner either to the sides of Located immediately above the channels @Z2 d2, and in fact in substantial opposition thereto, are the air-inlets Z3 d3. These may have their intake at any part of the appa ratus that may be chosen, as will be readily understood. The intermediary wall between the generator and casing B is also provided near t-he top of each of the two upper divisions with outlet openings d4 d4, to permit the exit of the waste gases priorto their arrival at the recuperator.

Considering the operation of the apparatus as a whole, it will be apparent that the producer gas will rise through the main inlet d', to pass into the lower division of the lower chamber'through the channel (Z2, and also, after passing through the upright ue D, through the upper channel d2, and almost immediately thereafterV each of these currents will meet and become mixed with theincomingsupply of air through the openings d d5. As should be obvious, the draftset up at each of the inlets cl2 and Z3 respectively, is such as will occasion a swirling, effecting/at one and the same time a better combustion and a more thorough disseminationv of heat throughout that particular division oi the heating chamber prior to the passage of the gases -up between the bagwalls L on their course to the outlets d4. is this indirect resistance and deflection of the gases downwardly by the bag-walls to the strong draft likely to be set up in an apparatus of this character which has been discovered actually detains the heat va sufliciently longer period of time to more uniformly l the lower portions of the retorts iff each'ffleating chamber, and hence as a direct result, to add that measure of increased eiiciency which is sought. Furthermore, by dividing the course of the gases of combustion, and thereby shortening such course, a less velocity may be I'imparted thereto for the purpose of exhausting them, than when such cflurse is longer. fThis con- `dition` further contributes to the increased heatingbapacity of such gases, inasmuch as they remain in contact with the retorts a correspondingly increased time, and furthermore permits the gases to be better-controlled, since it is possible by this construc' tion tolv regulate the temperature in either being provided with a horizontal plate dividing same into upper and lower com-- partments; the lower compartment of each chamber provided with an air inlet and the upper compartment of each chamber with a gas outlet; said plate being provided with means forming the sole gas inlet for the upper chamber; and a gas inlet establishing communication between said generator and llower compartment of each chamber.

2. In a muftle furnace the combination of a generator; a casing; one or more vertical' compartment of each chamber and a gas outlet. leading from the upper compartment of each chamber into a suitable lue; said partition forming the sole inlet for said upper chamber.

3. A munie-furnace comprising the combination of a generator; a casing; a wall interposed between said generator and casing; one or more vertical retorts within said casing; a partition extending horizontally across said casing andforming superimposed and independent heating chambers; al plurality of substantially horizontal plates, eachV provided with an opening and disposed on opposite sides of said partition, said openings being remotely located.relative to said wall, and means comprising iues within said wall for simultaneously conducting gases to and from opposite sides of said plates. l

4. A muttle-furnac comprisingl the combination of a generator; a casing; one or more vertical retorts within said casing; a

substantially horizontal partition in said i opening and disposed on opposite sides of '100 municatlon between said furnace and lower lio ' ings being said partition; and a wall interposed between said generator and casing, .said openlocated adjacent the opposite wall of the lat-ter, said interposed wall being pro'- vided with an upright flue communicating with said heating chambers diagonally below each such opening, and with said generator, said wall further provided with outlet openings communicating with said chambers diagonally above each such opening.

5. In a Inutile furnace the combination of a generator; a casing; one or more retorts extending vertically within said casing; the latter forming a heating chamber around said retorts; a horizontal plate within said casing forming independent heating chambers divided into upper and lower compartments; an inlet lestablishing' communication between said furnace and one end ot' the lower compartment; and an outlet leading from the upper compartment into a suitable flue; said plate being provided with openingI means therethrough forming the outlet from the lower 'chamber the sole inlet' for the upper chamber; said means being placed in that end of said plate which is opposite that end adjacent to the said first named gas inlet.

G. A. inutile-furnace coinprising the combination of' a generator; a casing; one or more upright retorts intersecting the interior of said casing; a closed, subst itially horizontal. partition within said casing intersected by said retorts and forming independent heating chambers; substantially horizontal battle-plates extending across said chambers and positioned on opposite sides of said partition, each such plate having an opening; bag-walls depending below said openings and affording sole communication therethrough; and means for conducting gases to and from both sides of said plates.

7. A mutue-furnace comprising the conibination of a generator; a casing having an uprightwall. integral with said generator; one or more upright retorts extending through the interior ot' said casing; a closed; substantially horizontal partition dividing said casing and intersected by said 1etorts and forming independent heating enambers; substantially horizontal battleplates extending across said chamber on opposite .sides of said partition and intersected by said retorts, each ot said plates having an opening adjacent the opposite wall of said casing, said integral wall being provided with flues adapted to establish communication between said generator and corresponding sides of said plates; saidwall being further" provided with outlet tlues communieating with said chambers on correspondingl'y opposite sides of said plates.

8. `A inutile-furnace comprising the 'combination of a generator; a casing having one upright wall integral therewith; one or more upright retorts extending throughthe interior of said casing; a closed; substantially horizontal partition extending across said interior, intersected by said retorts; and forming independent heating chambers; substantially horizontal plates extending across said chambers and positioned on,d opposite sides of said partition; said plates being similarly intersected by said retorts and provided each with an opening adjacent the opposite wall of said casing; a bag-wall depending below and inclosing each such opening.y said integral wall being provided with an upwardly extending iiue communicating withsaid generator and with said chamber below said bag-walls, said integra-l wall being further provided with outlet and air inlet iiues communicating with said chambers respectively above and below said plates.

S). In a inutile a generator; a casing;

furnace the combination of one or more retorts extending verticall)Y within said casing; the latter lorining a heating chamber around said retortsfa horizontal plate forming independent heating chambers divided into an upper and lower compartment; a gas inlet establishing communication between that end of the lower compartment near said turnace and the latter; and a gas outlet leading from the similar end of the upper compartment to a suitable tiuesaid plate being provided with opening means establishing conin'uinication between the upper and lower compartments and at the opposite ends ot the latter and forming an outlet for the` lower chamber. l

Signed by me; this 18th day of September, 1911.

L. C. HMINK. Attested by l). PLANTINGA; ANTON M. Surru.

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