US1314849A - And one-third to clarence l - Google Patents

Description

H. P. BASSETT.

CONTINUOUS ACTION RE'TORT.

APPLICATION FILED SEPT. 11. 1918.

Patented Sept. 2, 1919.

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CONTINUOUS ACTION RETORT. APPLICATION FILED SEPT-11.1918.

Patented Sept. 2, 1919.

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CONTINUOUS ACTION RETORT.

APPLICATION FILED SEPT. n, ma.

atentd Sept. 2, 1919.

3 SHEETSSHEET 3- amen STATES PATENT OFFICE.

HARRY P. BASSETT, OF CYNTHIANA, ILENTUCKY, ASSIGNOR OF ONE-THIRD TO CURTIS C. MEIGS, OF PHILADELPHIA, PENNSYLVANIA, AND ONE-THIRD T0 CLARENCE L. PARKER, OF WASHINGTON, DISTRICT OF COLUMBIA.

CONTINUOUS-ACTION RETORT.

Specification of Letters Patent.

Patented Sept. 2, 1919.

Application filed September 17, 1918. Serial No. 254,435.

To all whom it may concern:

Be it known that I, HARRY P. BASSETT, a,

citizen of the United States, residing at Cynthiana, in the county of Harrison and State of Kentucky, have invented certain new and useful Improvements in Continuous-Action Retorts, of which the following is a specification.

This invention relates to rotary retorts.

wherein solids are heated either for the purpose of distillation or to subject gases or vapors to the action of solids heated therein.

Retorts of this character are subject to the disadvantage that their action is not continuous. From time to time their operation must be stopped, the contents removed and the retorts recharged. Aside from the trouble and expense incident to discharging and recharging the retorts, their operation must be continued at undiminished expense for heat after the maximum efiiciency of the charge is past by reason of its becoming partiall spent, or the contents of the retort remove while a portion of it is still adapted for further treatment, thereby adding materially to the cost of the operation.

This invention is designed to overcome these disadvantages by providing rotary retorts of the character referred to, with means whereby the spent contents are automatically and continuously removed and the action of the retort made continuous.

Other objects and advantages of the invention will be apparent during the course of the following description.

In the drawings forming a part of this specification and in which like numerals are employed to designate like parts throughout the same,

Figure 1 is a central vertical longitudinal sectional view through apparatus embodying my invention,

Fig. 2 is an enlarged transverse yertical sectional view taken on line 2-2 of Fig. 1, and,

Fig. 3 is a central vertical longitudinal sectional View through a slightly different form of apparatus.

Attention being called to Figs. 1 to 3 inclusive, the numeral 5 designates the heating chamber of the apparatus, WlllCh may be formed of refractory material and arranged within a casing 6. The heating chamber 5 discharges at its lower end into a fire-box 7, having a grate 8, with an ash pit 9 therebeneath. Fuel, such as coal or the like, is fed into the fire-box 7 through an opening 10 which may be covered by a suitable door (not shown). The products of combustion escape from the heating chamber 5 through openings 11, arranged in the top thereof. These openings discharge into longitudinal passages 12, having communication with passages 13, leading to a stack 14.

The numeral 15 designates a horizontal rotatable drum or receptacle disposed within the heating chamber 5. In each form of the invention, the drum 15 has its forward end closed by a head 16, rigidly secured therein. This head .is provided near its periphery with an openin 17 covered by a plate 18, secured thereto y an suitable means. A

neck or tube 19 is rigid y secured to the plate 18, and referably formed integral therewith. his tube projects througln a stationary bearing sleeve 20, rigidly secured to the casing 6. Hearing elements or rollers 21 are carried within the sleeve 20, and serve to rotatably support the tube v19.

The tube 19 serves to rotate or drive the drum 15 and has a worm wheel 22 rigidly secured thereto. This worm wheel is inclosed within a casing 23. The worm wheel 22 receives its rotation from a worm 24, inclosed within the lower portion of the casing 23, and driven by a shaft 25, receiving its power from any suitable source.

At its opposite or rear end, the drum 15, has a second head 26, rigidly secured therein. This head is provided centrally thereof with a tube or neck 27, preferably formed integral therewith. The tube or neck 27 contacts with bearing elements or rollers 29, which are carried within a bearing sleeve 30, rigidly secured to the casing 6, as shown. From the foregoing description, it is apparent that the opposite ends of the drum 15 are rotatably supported, and that means are provided to rotate the drum.

The principal feature of the invention consists in the provision of means for conttinuously removing the spent material from 15, which material during the continuous the drum 15, during its rotation, and with-. out stopping the same. Such means comprises a circular plate 31, extending transverse-l v slight y spaced from the head 26, providing a radially extending space 32. The plate with. The plate 31 is provided at equidis-- tantly spaced intervals with openings 36, substantially semi-circular, and having their larger portions arranged substantially flush with the inneresurface of the annular flange 35, as shown. The openings 36 serve to permit the spent solid material within the drum agitation thereof caused by the rotation of the drum gravitates to the lower portion of the drum, to pass into the radial space 32: The drum 15 is rotated in the direction of the arrow in Fig. 2, and this spent solid material within the space 32 is caught by curved or spiral vanes 37 rigidly attached to the plate 31. These vanes are arranged approximately radially of the plate 31, and accordingly feed the solid material to the central portion of the plate. The upper or inner portions of these vanes are also transversely inclined, and diverge outwardly,

thereby serving to deflect or elevate solid material into and through a stationary tubular chute 38, mounted within the rotatable tube 27. This chute is secured to a stationary'plate 39, in turn attached to the bearing sleeve 29. The plate 39 has an opening 40, for placing the chute 38 into communication withan inclined chute 41-, preferably leading to a closed or hermetically sealed chamber (not shown). 7

The foregoing construction is common to both modifications of the invention d I will noW describe the construction, em odying the feeding means, which is specific to the first .form of the invention, and illustrated inFig. 1.

Arranged within the tube 19 is a stationary member 42, having a lower inlet bore 43 and an upper outlet bore 44. At its inner end, the member 42 has a flange 45, secured thereto, slidaby contacting with the inner end of the tube 19, as shown. A stationary head 46 is provided upon its inner face with an annular groove 47, slidably receiving the forward reduced end of the sleeve 19. This stationary head is secured to the member 42 by any suitable means.

within the drum 15, near and The coupling 48 is connected with the member 42 and in free communication with the bore 46. Connected with the outer end of the coupling 48 is an elbow 49, having connection with a valve casing 50, connected with a hopper 51. This hopper is supported by suitable means, as shown at 52 and 53.

A rotatable feed valve or star-wheel 54 is mounted within the valve casing 50 and may be driven by any suitable means to intermittently feed the solid material from the hopper 51 at any desired rate into the elbow 49. A spiral conveyer 55 operates within the bore 43, and serves to feed the connected with the stationary plate 46 and has communication with the bore 44. This elbow is connected with an outlet conduit 59, having a valve 60, connected therein.

In the embodiment of my invention shown in Fig. 3, astationary head 61 slidably engages the outer end of the sleeve 19, and. this head is equipped with openings 62, 63 and 64. A conveyer conduit 65 extends through the opening 64, and fits within an opening formed in and near plate 67 slidably engaging the tube 19.. A conveyer.

conduit 65 receives a spiral conveyer 68, carried by a shaft 69, driven by a pulley 70. The conveyer conduit 65 receives solid material from a valve casing 71, having a rotatable valve or star wheel 72 therein. The valve casing 71 is secured to the lower end of a hopper 73, suitably supported, as shown at 74 and 75.

The gas or vapor to be treated by the solid material is fed through a pipe 76, having connection with a horizontal pipe 77, ex-

tending through the. opening 63 and an opening 78 in the plate 67. The pipe 77 extends centrally and longitudinally within the drum 15. The pipe 76 is equipped with a cut-off valve 79; An outlet pipe 80 is equipped with a cut-ofl valve 81, and is connected with apipe 82, which extends through the openings 63 and through-an opening 83 in the plate 78. v

The operation of the first embodiment of my apparatus is as follows:

The solid material to be heated ordistilled, such as calcium acetate is fed from the hopper 57 as intermittently and-as rapidly as desired, by means of the rotatable valve 54, into the conveyer conduit and propelled forwardly by the spiral conveyer 55. This material is discharged into the drum 15, wherein it is subjected to distillation. The gases to be collected escape through the bore 44 and pass into the pipe 59, and dis I valve 60. During the rotation of the drum 15, the used or spent portions of the solid material gravitate to the lower ortion thereof and pass through the openlngs 36 into the radial space 32. This solid spent material is carried upwardly by the vanes I 37 and discharges into the chute 38, from which it passes into theinclined chute 41.

The. form of apparatus shown in Fig. 3 is designed for treating gases or vapors, such for example as the vapors of sulfur containing oils to the action of solid materials or reagents such for example as iron oxid, fragmentar iron bodies such as chips, or turnings, or t e like, in the resence of heat. In the operation of this orm of ,apparatus, the gasesoivapors to be treated are passed into the revolving drum 15 through pipe 77. The solid material is fed from the hopper 73 into the conveyor conduit 65, by means of the rotatable valve "(2 The spiral conveyer 58 feeds this material into the rotatable drum. The treated gases or vapors pass -throu h the pipe 82 and through pipe 80, when t e valve 81 is opened. he spent or used solid material, such as iron sulfid where the'retort is employed in the removal of sulfur or sulfur compounds from petroleum oils, gravitates to the lower portion of the drum 15, and is removed therefrom, as indicated in connection with the first form of my apparatus. It is-to be understood that the forms of my invention herewith shown and described are to be taken as preferred examples of the same, and that various changes in the shape, size and arrangement of parts may to-without departing from the subjoined c aims.

Having thus describtd my invention, I

claim 1.- In apparatus of the character described,

' a drum provided at one end with anoutlet opening near the central portion of the same, means toheat the drum, means to rotate the drum, means to feed material to the drum, and approximately radial vanes arranged within the drum near the outlet thereof-and connected with the drum for ro-' tation therewith, said vanes extending from points near the outer ortion "of the drum to a point near the out et, the inner ends of a the vanesbeing inclined laterally and diverging outwardly toward the outlet.

2. In apparatus of the character described, a 'drum provided at one end with an outlet 0 ning arranged near the central portion to turn the drum upon its longitudinal axis, means to feed material to the drum, a radial plate arranged within the drum and secured,

thereto and disposed near and s aced from the outlet for providing a radia discharge tral longitudinal axis o ing to clined laterall Y toward the out et. 0 the same, means to heat the drum, means approximately ra ial vanes arranged within sald passage and rotatable with the'plate, said vanes extending from points near .the openings to a point near the outlet.

3. In apparatus of the character described, an approximately horizontal drum provided at one end with an inlet 0 ening and at its opposite end with an outlet opening, said outlet opening being dis osed near the centhe drum, means to heat the drum, means to rotate the drum, means to feed material through the inlet opening, within the drum near and spaced from the outlet openin and secured to the drum for rotation t erewith, said plate servprovide a radial passage and having opemngs formed therein near its peri hery, and devices disposed within the radia passage and serving to convey material from the openings 0 the plate to the outlet opening. v p

4. In apparatus of the character described, an approximately horizontal drum provided a radial plate arrangedat one end with an outlet disposed approximately centrally thereof, means to heat the drum, means to rotate the drum, means to feed material to the drum, ranged within the drum near and spaced from the outlet and secured to the drum for rotation therewith, said plate being roa radial plate ar- 'vided with openiggsdisposed near 1ts-perlphery, and curv vanes arranged between the plate and adjacent and of the drum and adapted for rotation therewith, said vanes extending from points near the openings to a p01l1tnear the outlet, and serving to conduct material from the lower portion of the drum to the outlet. 5. In apparatus of the character described,

a drum dprovided at one end with an outlet arrange near the center ofsuch end, means to heat the drum, means to rotate the drum, means to feed material to the drum, a radial plate arranged within the drum'and secured thereto an disposed near-and spaced from the end of roviding a discharge passage, said plate emg provided near its eriphery with openings, and -lo ngitudinal y -curved vanes arranged w1th1n said passage and rotatable wit the plate, said vanes, extending from pomts near the openings to a point near the outlet, the inner ends of the vanes being inand converging outwardly 6. In apparatus of the character described, a furnace embodyin a casing, bearing element arranged wit in the ends of the easing, a rotatable drum arranged withinthe casing, tubes connected with the ends of the drum and operating within the bearing elethe' drum having the outletfor In testimony whereoef I aflix my signature 0 in the presence of two witnesses;

HARRY P. BASSETT.

Witnesses W. J. MOORE, EDWARD STEWART.

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