US806877A - Wood-distilling retort. - Google Patents

Description

N0. 806,877. PATENTBD DEG. l2, 1905.

' J. T. DENNY.

WOOD DISTILLING RETORT.

APPLICATION PILE'D JULY 12,1904.

Inventor,

JOHN T. 'DENNY, OF OROMARTIE, NORTH CAROLINA.

WOOD-DISTILLING RETORT.

Specification of Letters Patent.

Patented Dec. 12, 1905.

Applicatiqu filed July 12, 1904. Serial No. 216,252.

To all whom, t may concern:

Be it known that I, JOHN T. DENNY, a citizen of the United States, residing at Cromartie, in the county of Robeson and State of North Carolina, have invented anew and useful Wood-Distilling Retort, of which .the following is a specification.

This invention relates generally to wooddistill ing retorts,and particularly to one adapted for use in distillation of turpentine.

The rapid destruction of the retorts of a turpen tine-distilling plant is a source of heavy expense and much loss to manufacturers. The deterioration of the retort is due to the fact that the intense heat to which it is subjected in efecting the separation of the heavier hydrocarbons, residual turpentine, pyroligneous acid, and other by-products after the first distillation takes place, and the removal of which is necessary in order to produce a high grade of charcoal, results in the blistering, bulging, and rapid burning out of the retort, entailing thereby not only the loss in money necessary to replace the still, but the loss of time of the operators while the necessary repairs are made.

It is the object of the present invention in a ready, simple, thoroughly feasible, practical, and comparatively inexpensive manner and without necessitating any change in the structural arrangement of-the retort to increase its life to anindeiinite extent and to render it possible to adapt the4 improvements to retorts already in use.

With the above and other objects in view,l

as will appear as the nature of the invention is better understood, the same consists in the novel construction and combination of parts of a wood-distilling retort, as will be hereinafter fully described and claimed.

In the accompanying drawings, forming a part of this specification, and in which like characters of reference indicate corresponding parts, there is illustrated one formof embodiment of the invention capable of carrying the same into practical operation, it being understood that the elements therein exhibited may be varied or changed as to the shape, proportion, and exact manner of assemblage, without departing from the spirit thereof.

In the drawings, Figure 1 is a View in vcrtical longitudinal section taken on the line l 1*,

Fig. 3, and looking in the direction of the arrow thereon. Fig. 2 is a view in vertical longitudinal section taken on the line 2 2, Fig. 3, and looking in the direction of the arrow thereon. Fig. 3 is a horizontal sectional view taken on the line 3 3, Fig. 1, and look: ing in the direction of the arrow thereon.

Fig I is a perspective detail view of a portion of one of the retorts.

The retort comprises a heavy iron or steel shell l, closed at its top by a cover 2, which is held combined with the shell in this instance by pivoted bolts 3, carrying nuts 4, the cover being provided with a ring-bolt 5, by which it may be lifted. The shell may be constructed in the usual or .any preferred manner, and in order to protect it from the high heat necessary to char the wood, and thus obviate the buckling and blistering and burning out before referred to, it is incased in a lagging 5, preferably of sheet-asbestos, which, as will be apparent, not only operates to insulate the shell, but also positively shields the same from the destructive action of heat while not in any appreciable manner detracting from the operation of the heat to effect the purposes designed. The asbestos lagging is held in position by segments 6, preferably of cast-iron and in this instance beingshown as quarters of a circle, the terminals of the segments being provided with oriced ears or lugs 7, through which pass bolts 8 to hold'the segments assembled. While as a rule it will be preferred to employ quarter-segments for the pur'pose,it is to be understood that a greater or less number may be employed and still be within the scope of the invention. These segments will extend from the bottom of the retort to a point near its top, or, if preferred, they may extend entirely to the top. The lugs or ears may extend the entire width of the segmentsor may be disposed only at each corner thereof, and as this is immaterial and will be readily understood detailed lillustration thereof is deemed unnecessary.

In order that the application of the heat to the retort shall be thoroughly effective to heat all portions thereof, so that the stock will be properly subjected to the action of the heat, the retort isinclosed by a casing 9, of masonry, which extends nearly to the top of the retort and is then built in against the retort,

thus to prevent escape of heat at this point. The masonry is spaced from the shell to present an annularheating-chamber 10, in which .IVO

are disposed two baiiies 11, arranged diamety IIO rents of the heated air, thus to cause them to travel and be carried around and impinge on the exposed surfaces of the segments. The bottom of the shell is double, the under one 12 being flat and the upper one lbeing cone-shaped, and between these two bottoms is interposed a packing 14, of sand or any other suitable material` which will serve to lag the bottom and shield it from the effects of excessive heat. The shell extends below the double bottom and is provided with a heat-outtake opening 15 and a heat-intake opening 16. Highly-heated products of combustion from a suitable source of generation are supplied to the intake-opening 16, pass beneath the bottom of the retort and thence upward through the opening 15 to the chamber 10 and circulate around one-half of the retort, thence pass over the baffles 11, and finally escape through a flue 17, which leads to a chimney. (Not shown.) The lower portion of the shell in alinement with the bottom 13 is provided with a manhole 18, closed by a cover 19, and with avalved pipe 20, through which the tar and other heavy by-products are removed, and the upper portion of the shell has connected with it a pipe 21, leading to a suitable condenser. (Not shown.)

From the foregoing description it will be seen that by the employment of the lagging and segments the exteriork of the retort is eiectively shielded against the destructive action of heat, while the proper operation of the retort is not in any way interfered with. Furthermore, as stated, thelaggng and segments' may be readily applied to a retort already in use and will thereby materially prolong its life.

Segments may be supplied to the user of the retort, and in the event of the destruction of a segment or a number of them repairs may be readily and cheaply effected.

Having thus described the invention, what is claimed is-H l 1. A retort comprising a lagged shell, a casing surrounding the shell andA separated therefrom by a heat passage-way and provided with a heat-intake opening and a heat-outtale opening, baffles arranged in the passage-way, an extension to the retort provided with an intake-opening registering with that of the casing and with an outtale-opening discharging into the passage-way, and a manhole and escape-pipe arranged in alinement with the Hoor.

2. 1n a retort, a lagged shell provided with a double floor, the upper one of which is coneshaped, lagging disposed between the oors,

and a manhole and an escape-pipe in alinement with the upper floor.

3. A retort comprising a lagged shell, a casing surrounding the shell and separated therefrom by a heat passage-way and provided with a heat-intake opening and a heat-outtake opening, baffles arranged in the passage-way, and an extension to the retort provided with an intake-opening registering with that of the casing and with an outtale-openingdischarging into the passage-way.

4. ln a retort, a lagged shell provided with a double floor, the upper one of which is coneshaped, and lagging disposed between the floors.

In testimonythat I claim the foregoing as my own I have hereto aHXed my signature in the presence of two witnesses.

JOHN T. DENNY.

Witnesses:

D. H. BROWN, D. MGC. SMITH.

Images