US882304A - Extracting apparatus for horizontal retorts. - Google Patents

Description

G. EITLE.

BXTRAGTING APPARATUS POR HORIZONTAL RETORTS. APPLICATION FILED 90127, 1903.

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PATENTED MAR. 17, 1908.

' 2 sums-sum 1 m JMM 2291 No. 882,304. PATENTED MAR. 1'7, 1908. O. EITLB.

BXTRAOTING APPARATUS FOR HORIZONTAL RETORTS.

APPLICATION FILED OOT.27,1903.

2 SHEETS-SHEET 2.

CHRISTIAN EITLE, OF STUTTGART, GERMANY.

EXTRACTING APPARATUS FOR HORIZONTAL RETORTS.

Specification of Letters Patent.

Patented March. 17, 1908.

Application filed C-ctoberl27, 1903. Serial No. 178,691.

To all It/10m it may concern: j

30 it known that I, Cnms'riAN ErrLn, factory owner, and a subject of the ()erman [Cmperor, residing at 2S-32 itosenbergstrasse, in the city of Stuttgart, Kingdom of Wurtemburg, and (.ierngrn Empire, have invented a certain new and useful l lxtracting Apparatus l'or Horizontal ltetorts, of which the following is a specification.

The apparatus to which this invention refers is intended for theextraction of the contents of horizontal rctorts such as are used for the manufacture of ilhuninating gas, that is to say for the purpose of removing the coke produced by the distillation of the coal, from the retort, after the distillation has been linished. The coke constitutes a glowing, coherent cake part of which adheres firmly to the walls of the retort and which upon extraction and upon being quenched becomes broken up into )ieces and into a coarse powder, of which the former still possess a high heating value while the coarse powder is of no great value. in view of the furnaces being worked continuously so as to be charged with fresh stull' immediately after the removal of the coke, it becomes necessary to limit the operation of extraction to the shortest time possible, in order to avoid loss of heat and the escape of gases into the working room, and in particular because the health of the working crew is injured thereby.

The said operation has heretofore been offected almosteverywhere by manual labor, the workman extracting the coke from the retort by means of specially shaped extracting hooks, in' separate pieces; or in somej cases this was cilected by large complicated structures the cost of which would eat up the profit.

The present invention is intended to ell'cct this operation, and is shown in Figure l in longitudinal section, in Fig. 2 in plan view, while Figs. 3, 4 and 5 represent transverse sections and several modifications.

The apparatus comprises one, two or more spirals c, a which are rotatably arranged in a journal box 1). The spirals are arranged at I such distance from each other, that they ongage for some parts of their lengths with each other. The turns of the spirals are in the l contrary direction with relation to each other, the left hand spiral being made with j right hand directed turns and the right hand i spiral with left hand directed turns. Rotation is imparted to them for instance, as

shown in Fig. 3, by means of a pair of toothed wheels 0 c in the direction of the arrow. The points of crossing of both spirals, have td be brought in contact with each other. f

The mode of operation is as followsl By the rotation of the two s irals sinrultaneo usly with the introduction 01 the same into the retort, the cake of coke is broken oil the walls by the ends of the same, the cake being cut into pieces by the upward turning movement of the sharply pointed ends of the spirals, so that a piece of coke of somewhat larger size, which might result from a large piece of coal, is free to drop into the free space of the re tort without being injured. Each turn of each of the spirals constitutes a space which corresponds to two of the largest sized pieces of coke, the said space remaining unchanged by the continued rotation, but advancing in accordance with the turn of the spirals. The said space serves for the feeding forward of the pieces of coke, the spirals being introduced into the retort with a speed below that corresponding to the hei ht of the turns.

The essential feature of the invention c0nsists in the employment before all of two spirals wound in a contrary direction and possessing any suitable sectional area and in the oppositely rotating movement and in the relative position of the turns to each other, whereb a large surface control ed by the spirals, the cake being broken off from the bottom and being cut up by the upward movement of the same, while the several pieces are pushed in into the space formed by each two turns, the rapid and clean emptying of the retort upon its entire length being thus secured without any material disintegration of the cokcs. At any rate there is not more disintegration than will occur invariably by the scraping out of the retort about 1.2 times by hand and by means of hooks or by means of motive power in particular.

. The spirals may be rotated by a crank, or by a power-wheel or by any other suitable means, and as manydevices maybe used for such purpose which any mechanic skilled in the art can easily supply, 1 have not deemed it necessary to herein.

The retraction of the device from the retort is accomplished by a reversal of the rotation when at the same time the coal to be coked is led to the spirals and by such reverse rotation forced into the retort, as the of the retort walls is show and describe the same retort fills and the coal backs up against the rear end ol' such retort the spirals by the pressure against the rear end of the retort are slowly and automatically forced out of the same.

The journal-box I1 is n'lounted on a vertical frame a and is equipped \\ith rollers j, j, so as to be movable on said frame in a vertical direction, in order to raise or lower the extracting; spirals for the purpose of removing the coke from retorts arranged on different levels. Said frame a is rigidly connected to a earriagef, mounted upon a crane carriage (Z. The, earria e f is equipped with rollers g, g and whees k, is, and said carriage f travels forward or backward in accordance with the rotation of the spirals a. The raisingand lowering apparatus is shown in Fig. 6, the hanger it through which the spiral conveyor a reciprocates being attached to the lower end of a rod 7 which reciprocates vertically in a double slip n, carried by the crane carriage (1, adjacent to which ournals is an idler ulley m over which runs a chain or cable 0 W 'ch passes over the like idler pulley m and is wound up on a drum Z, mounted on thesame shaft as a similar drum in 6, hidden from view by Z, upon which second drum is wound up a chain or cable 6 which raises or lowers the journal box 'b,or there may bea single drum having a central flange for keeping the two cables or chains from interference. In any event, it will be seen that the two cables should be simultaneously wound up at the same rate and that this will always keep the spiral conve er 0. in a As the spira conveyor and out of the retort, alon the carriage crane d on the wheels is and I, and as it does so the chain 0 is tightened when the spiral conveyor is being drawn a is reciprocated 1n exerted upon the body of coal;

horizontal position.

the carriage f rolls out and slacked when it is being forced in but before the chain has slacked enough to such conveyor has already penetrated into the retort and will thus he kept in the right position, although the natural friction of the Zrod h in the slip journals 1: is frequently l sullicient to maintain it in position. If not, I a pawl, adjacent to the slip-journal may he i provided to prevent dropping of the hanger jwhen once raised, but the device may be 1 worked without any such attachment.

1 What I claim and desire to secure by Letters Patent of the United States is l 1. In a device of the class described a supporting frame, a plurality of spiral conveyors revolubly mounted in the frame adapted to l enter into a retort, and means for bringing the said conveyersmto and out of registry with the mouth of the retort.

2. In a device of the class described, a plurality of spiral conveyors axially movable 1 with relation to horizontal retorts, a carriage, j a frame carried by the carr1age, a movable I support carried by the frame, and a journalbox in which the spiral conveyors are revolubly mounted carried .by the support, substantially as shown and described.

3. In a device of the class described, a plu- I rality of spiral conveyors axially niz-vable in relation to horizontal retorts and revolubly mounted in journal-boxes, a hanger supporting the journal-boxes, and means [or displacing the hanger and journal boxes in a vertical direction, substantially as shown and described. In witness whereof I have hereunto set my 1 hand in presence of two witnesses.

Cll RlSTl AN Elll JG.

l Witnesses;

WM. llAnN, Ennas'r EUTENMAN.

cause the end of the spiral convcy'er to drop

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