US774860A - Drier. - Google Patents

Description

BATENTED NOV. 15, 1904.

i v J. E. TURNEY.

DRIER. APPLICATION FILED DECQZI, 1903.

N0 MODEL.

UNITED STATES iatented November 15, 1904.

PATENT OFFICE.

JOHN E. TURNEY, OF LOUISVILLE, KENTUCKY, ASSIGNOR OF ONE-HALF TO CHARLES E. GEIGER, W. E. KOOP, AND G. W. FISKE, DOING BUSI- NESS UNDER THE FIRM-NAME OF VILLE, KENTUCKY.

GEIGER, KOOP &FISKE, OF LOUIS- DRIER.-

SPECIFIGATION forming part of Letters Patent No. 774,860, dated November 15, 1904.

Application filed December 21, 1903. Serial No. 185,975. (No model.)

T0 all whom, it may concern.-

Be it known that I, JOHN E. TURNEY, a subject of the King of Great Britain, residing at Louisville,in the county of Jefferson and State of Kentucky, have invented new and useful Improvements in Driers, of which the following is a specification, reference being had to the accompanying drawings, forming a part thereof.

This invention is an improvement upon the drier for which United States Letters Patent No.'74:0,607 were granted to me, dated October 6, 1903.

.The improvement consists in the. features of construction which are set out in the claims.

In the drawings, Figure 1 is an axial section of a drier having said improvements. Fig. 2 is a section at the line 2 2 on Fig. 1. Fig. 3 is a View similar to Fig. 2, partly broken away, showing a modification of the flights.

This drier comprises a cylinder A, which is encompassed by an annular gear supported in a cradle O on antifriction-rolls O and provided with means for rotating it in such cradle, consisting in a pinion D, meshed with the annular gear B, and provided with any suitable means for rotating the pinion and gear to thus roll the cylinder in its cradle. To the inner surface of the cylinder there are secured hollow flights E, extending longitudinally the whole length of the cylinder at short distances apart circumferentially, said flights being made of metal shaped in trough form with lateral flanges e, which seat and are bolted against the inner surface of the cylinder. The trough-cavities when the said flights are thus bolted in place on the cylinder will constitute longitudinal flues extending from end to end of the cylinder, for a purpose hereinafter explained. Preferably to adapt them to well perform their function as flights for the purpose of carrying up and spilling the material to be. dried as the cylinder rotates the elements E have their opposite sides E inclined at an obtuse angle to the cylinderwall.

The cylinder A at its opposite end extends into two fixed heads, named for distinction, re-

spectively,the receiving-head and the discharge-head. The discharge-head Gr consists merely of a rigid structure, preferably castiron, having a suitable cavity with a cylindrical opening at one side, into which the discharge end of the cylinder protrudes, for delivering the dried material which falls into the discharge-throat G, in which any suitable conveying means, as the screw H, may operate to carry away the dried material.

At the receiving end the cylinder has rigid with it, so asto revolve with it, an annular diaphragm in the form. of a hollow annular head whose cavity constitutes a vestibulechamber for the flues formed by the flights E. In order to sustain thisrelation to said flues, said head comprises two annular elements J and J the former applied and secured outside the cylinder and by its outer periphery formtween the outer circumference of. the inner element and the inner circumference of the outerelement an annular mouth J This month registers with an annular diaphragm K, which has a multiplicity of apertures for communication with the interiorof said vestibule and which constitutes the inner wall of the stationary receiving-head K. A flange k on the diaphragm K protrudes into the annular opening J making a suitably close joint at the'outer circumference of said opening, and a flange it at the inner circumference of said diaphragm K telescopes with a corresponding flange at the inner circumference The annular element J is fitted within 1 The two of the element J of the annular head of the head K, and there communicates with the ata slight longitudinal inclination, as shown discharge pipe or stack M. The stationary head K is connected at the outer side by means of a pipe N with a discharge-pipe from the furnace, which is not shown, but which is designed to afford gaseous combustion, preferably clear gas in intensely-heated condition, which is conducted by way of the fixed head K around the funnel L through the apertures if" it of the diaphragm K into the hollow annular head or vestibule formed between the elements J and J and thence directly into the flues formed by the hollow flights E. The material to be dried is fed in from any suitable convenient source through a hori zontal pipe P, in which a screw conveyer Q protrudes, as suggested by the end view of the same seen in Fig. 1. This construction is identical with that shown in my said Patent No. 740,607 and need not be further described; but it may be understood from what is seen in Fig. 1 that the pipe P traverses the cavity of the head K outside the funnel L and penetrating the latter discharges within the same, as seen in said figure, so that the material delivered on the sloping bottom of the funnel is thereby directed and discharged into the cylinder onto the hollow flights for carrying up and spilling it as the cylinder rotates until it is finally delivered at the farther end. The gaseous combustion first entering the flues or hollow flights E from the vestibule 7 passes through them, and thereby heats them and maintains them in condition to rapidly dry the material delivered upon and carried by them in the rotation of the cylinder, and said gases having traversed the whole length of said flues are drawn back through the central space of the cylinder, encountering the material already partly dried, which is being showered from the hollow flights as the cylinder revolves, and in this part of its course, encountering said material, abstracts the moisture therefrom and departs moisture laden through the flue L to the stack M.

Suitable means will be employed for causing the material to advance longitudinally through the cylinder as the latter rotates. Suchmeans preferably may consist in setting the cylinder in the drawings.

I claim- 1. A drier comprising a horizontal cylinder having secured to its inner wall a circular series of flights of trough-like form, having the open side of the trough applied and secured to said cylinder-wall, forming flues extending longitudinally from end to end of the cylinder and opened at their ends; fixed receiving and discharge heads with which such cylinder and said flues communicate at the ends; means for supporting and rotating the cylinder, the receiving-head being partitioned to separate an annular portion from the central portion, the annular portion communicating with the flues and the central portion communicating with the cylinder within said flues; an inlet for a heating medium leading into said annular portion and a vapor-discharge throat leading from said central portion across the annular portion, and a final vapor-discharge pipe communicating with said throat.

2. A drier comprising a horizontal cylinder having hollow flights angular in cross-section extending longitudinally and forming flues from one end to the other of the cylinder, such flights being open at their ends; fixed receiving and discharge heads with which such cylinder and said hollow flights communicate at the ends; means for supporting and rotating the cylinder, the receiving-head being partitioned to separate the annular portion from the central portion, the annular portion communicating with the flues and the central portion with the cylinder within the flues; an inlet for a heating medium leading into said annular portion, and a discharge-throat leading from the central portion across said annular portion and a final discharge pipe for said throat.

In testimony whereof I have hereunto set my hand, in the presence of two witnesses,this 10th day of December, A. D. 1903.

JOHN E. TURNEY.

In presence of- EDWARD T. VVRAY, FRED. G. FISCHER.

Images