US126455A - Improvement in grain-driers - Google Patents

Improvement in grain-driers Download PDF

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US126455A
US126455A US126455DA US126455A US 126455 A US126455 A US 126455A US 126455D A US126455D A US 126455DA US 126455 A US126455 A US 126455A
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cylinders
grain
air
cylinder
tubes
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    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F26DRYING
    • F26BDRYING SOLID MATERIALS OR OBJECTS BY REMOVING LIQUID THEREFROM
    • F26B11/00Machines or apparatus for drying solid materials or objects with movement which is non-progressive
    • F26B11/02Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles
    • F26B11/04Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis
    • F26B11/0436Machines or apparatus for drying solid materials or objects with movement which is non-progressive in moving drums or other mainly-closed receptacles rotating about a horizontal or slightly-inclined axis comprising multiple stages, e.g. multiple rotating drums subsequently receiving the material to be dried; Provisions for heat recuperation

Description

J.. GUARDIOLA. Improvement in Grain-Driers.

Patented May 7,1872.

2 Sheets--Shefn` 2. J. GUARDIOLA.

Improvement in Gran-Driers. N0. 126,455, Patented Ma 7,2?2.

'i f' #if .1 C

' umfat J fsa NITED STATES PATENT Cerros..a

i JOS GUARDIOLA, OFOHOGOLA, cENTRAL AMERICA.

IMPROVEMENT IN GRAIN-DRIERS.

Specification forming part of Letters Patent No. 126,455, dated May 7, 1872.

Specification describing a new and Improved Apparatus forl Drying Grain, Coffee, Malt, and other substances, invented by JOS GUARDI- OLA, ot' Chocola, in the Republic of Guatemala, Centra-1 America.

Figure 1 represents a side elevation, partly in section, of my improved drying apparatus.` Fig. 2 is an end elevation, partly in section, of the same. Fig. 3 is a vertical longitudinal section on a more enlarged scale of the heating apparatusemployed in the drier, the line c c, Fig. 4, indicating the plane of section. Fig. 4 is a vertical transverse section of the same on the line 7c k, Fig. 3. Fig. 5 is a detail horizontal section of the same on the line c k, Fig. 3. Fig. 6 is a detail vertical transverse section of one of the evaporatiug and agitatin g cylinders employed in the apparatus. Fig. 7 is a detail longitudinal section of one of the divisions within the cylinder.

Similar letters of reference indicate corresponding parts.

This invention relates to a new machine for artificially drying grain, coii'ee, malt, or other fruit, to prepare and tit the same for preservation, transportation, or other purposes. It is more particularly intended to supersede the common method of drying such articles bythe heat of the sun, and thereby materially to hasten the evaporation of surplus moisture. The invention consists in a new arrangement of perforated rotary cylinders, containing central perforated hot-air tubes and radial winged partitions, to agitate the grain or substance to be dried in the compartments formed between the partitions, and meanwhile to expose the same to the iniiuence of the hot air which permeates the entire cylinders. By this arrangement the grain or coffee can be conducted with suitable rapidity and under constant lateral agitation through the heated compartments. The invention also consists in a new construction of furnace for heating the air to be conducted to the above-mentioned cylinders, and in the combination therewith of a fan, whereby cold air will be forced through heatingpipe's within said furnace, and thence into conductors for transmission to the drying-cylinders.

In the accompanying drawing, A represents the frame ofthe dryin g-machine, made of wood,

metal, or other material. It serves as support for two inclined perforated cylinders, B C, which are made of sheet metal or other proper material best adapted to the purposes for which the lnachine is intended. The cylinder B is directly above C, or at least so placed that its lower end is entirely or nearly above the upper ond of C, where both cylinders are connected by an immovable neck or conduit, a. The cylinders B C are supported on small rollers b b, as indicated in Fig. 2, said rollers having their supports in the frame A. By this means the cylinders can be readily revolved around their respective axes. Rotary motion is imparted to the cylinders by a wormgear, d, working into toothed wheels e e, which embrace the cylinders B U, in manner clearly illustrated in Fig. l. Instead of this means of imparting motion to the cylinders, any other equivalent means may, however, be employed, such as belts, cranks, or other devices. Each cylinder B C contains an inner perforated tube, E, and around the same radial partitions ff, which extend from the perforated tube E to the perforated circumference g of the cylinders, as is more fully shown in Fig. 6. By means of these partitions fthe annular space around the tube E and within the shell g is divided into a number of segmental compartments, h h. From the partition f project into the compartments h transverse plates t' t', all or some of which have wings j j at their terminations, said wings projecting alternately inward and outward, as is more fully indicated in Figs. 6 and 7. The partitions ff and their appendages extend from end to end of each cylinder. rlhe inner tubes E E of thc two cyliuders connect, respectively, with hot-air iiues land m that project from a heater, F. The coupling between the tubes E and the iiues l m is ot' such kind that said tubes may revolve with the cylinders, with which they are rigidly connected, while said iiues remain immovable, being rigidly connected with the stationary heater F. The perforations through the tubes E and shells g should be smaller than the grains to be acted upon in order to prevent suchgrains from falling through their meshes. G is an elevator containing an endless band, n, and buckets o o for raising the grain to be dried. to the requisite height Jt'or conveyance to the drier. A spout, p, extends from the upper part of the elevator into the upper open end of the cylinder B. Another spout, r, extends downward from the upper part of the elevator to lead to a suitable receptacle. A valve, s, shown in Fig. 2, serves to open whichever of the two spouts p r is to be used, and to shut the other. From the lower Aend ofthe cylinder C a spout, t, leads into the lower part of the. elevator. H is a hopper, from which the grain is originally supplied to the elevator. This hopper feeds into a vibrating shoe, u, which empties into a spout, yr, leading into the lower part ofthe elevator, as is clearly shown in Fig. 2. Oscillating motion is imparted to the shoe u by contact with an eccentric on a revolving shaft, u', or by other means. The heating apparatus F, of suitable size and shape, has a firechamber, x, Fig. 3, in which a tubular grate, y, is set up. The products of combustion pass from this chamber x up in a vertical Hue, a2, and forward again in a horizontal ne, b2, whence they escape through the smoke-pipe d2. A damper, e2, in the latter regulates the rapidity of consumption. The flue b2, it will be noticed, traverses a chamber, f2, which is directly above the fire-chamber x. A series of verticaltubes, g2, passes through the posterior part of the tire-chamber, and serves to connect the chamber j"2 with a cold-air supply-chamber, h2, underneath. A fan, I, supplies the cold air which is to be heated to the chamber h2, from where such air ascends in the tubes g2, and enters the chamber f2 thoroughly heated. The hot-air tlues l and m conduct the air from the chamber f2 to the inner tubes E of the cylinders B C, as hereinbefore specified, and are provided with dampers i2, whereby the supply of hot air can be regulated. The tubular grate-bars serve to connect the chamber h2 with a front air-chamber, jl, whence pipes l2 extend up to the chamberfz, as shown. Every opportunity is thus utilized of exposing the air to the heat.

The operation is as follows: The grain, coffee, or other lnaterial to be dried is, from the hopper, conveyed to the lower part of the elevator, and thence to the upper end of the cylinder B. It is, within said cylinder, distributed through the several segmental compartments and in them gradually conveyed to the lower end of the cylinder, whence, in the stationary neck, it is passed to the lower cylinder C, and therein again agitated and moved along. While in the cylinders B U the grain is constantly subjected to the induence ot' the heated air, which escapes through the apertures of the tubes E. Charged with the moistnre from the grain such `heated air leaves the cylinders through the openin gs in their shells. lf after having passed through the lower cylinder the grain should not yct be in the desired condition, it may, being from the lower cyhn- C inder conveyed to the elevator, be recomm1tted to the upper cylinder, and once more passed through the machine, and as many times more as is necessary to make it as dry as required. When the desired object has been fully attained, the grain is nally discharged from the elevator through the spout 1'. The cylinders may be revolved as much as five or more times in a minute, orV slower, according to the requirements of each case.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- 1. The perforated cylinders B C, containing the perforated air-tubes E E and the parti tions and wings, substantially as herein shown and described.

2. The combination of the fan I and heater F with the pipes l m, tubes E, and rotary cylinders B C, all arranged substantially as herein shown and described.

3. The drying-machine, composed ot' the cylinders B C, tubes E, elevator G,heater F, and fan I, all arranged to operate substantially as herein shown and described.

The above specilcation of my invention signed by me this 22d day of December, 1871.

JOS GUARDIOLA.

Witnesses:

LESLIE C. HANKs, HENRY SCHOLEIELD.

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Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2463683A (en) * 1947-08-28 1949-03-08 Harry W Fay Laundry conditioning tumbler
US3785063A (en) * 1971-10-06 1974-01-15 R Bishop Process and apparatus for dehydrating moisture containing material
EP1136000A2 (en) * 2000-03-21 2001-09-26 Eiyoh Co., Ltd. 2-Step method for drying mash-products and device thereof
US20050089266A1 (en) * 2002-05-28 2005-04-28 Yuan Ma Sunken electrode configuration for MEMs micromirror
CN107421307A (en) * 2017-10-20 2017-12-01 朱雪梅 Tea drying machine

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2463683A (en) * 1947-08-28 1949-03-08 Harry W Fay Laundry conditioning tumbler
US3785063A (en) * 1971-10-06 1974-01-15 R Bishop Process and apparatus for dehydrating moisture containing material
EP1136000A2 (en) * 2000-03-21 2001-09-26 Eiyoh Co., Ltd. 2-Step method for drying mash-products and device thereof
EP1136000A3 (en) * 2000-03-21 2003-10-22 Eiyoh Co., Ltd. 2-Step method for drying mash-products and device thereof
US20050089266A1 (en) * 2002-05-28 2005-04-28 Yuan Ma Sunken electrode configuration for MEMs micromirror
CN107421307A (en) * 2017-10-20 2017-12-01 朱雪梅 Tea drying machine
CN107421307B (en) * 2017-10-20 2019-05-24 朱雪梅 A kind of tea drier

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