US1112976A - Coal-washing apparatus. - Google Patents

Description

E. G. BURKS & N. HAYES.

COAL WASHING APPARATUS.

APPLIUATION FILED 001215, 1913.

1,1 12,976. Patented Oct. 6, 1914.

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, stream, with the result that it seriously in UNITEDSTATESPATENTOFFICE EUGENE e, BURKS Ann ivnnnran HAY sfon, nn viInGnAM,nta aaivraf ,COAIPWASHING ArPAnATUsf Specification of Iietters Patent.

Application filed october 15,1913, Seria1No.795,,302L a 1 To all whom it may concern: a

, Be it known that we, EUGENE G. BURKS and NEENmN HAYES, citizens of the United States, residing at Birmingham, in the county of Jefiersonand State ofpAlabama,

have invented certain new and useful Im provements in Goal-"Washing Apparatus; and we do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which. it appertains to make and use the same.

a The present invention relates to asettling apparatus for treating wash wateri'rom washed coal, and has for its purpose to provide an arrangement whereby to recover the coal dust which is usually carried off and lost with the wash water in the method and apparatus now employed. The further purpose of construct a form of apparatus wherein the water for separating the coal is purified or:

cleared and used over and over progressively with the separating, operatlon, to the end of saving the expense of tankage, and other losses and damage incident thereto.

The method of treating the wash water from washed coal as now carried out con-v sists generally in conveying the same to settling tanks where it is subjected to the action of a contantly flowing; stream of water which floats off the foreignmatter from the coal, and the coal accumulates or settles in section and part elevational view the construction of the apparatus employed.

Referring tothe apparatus in detail,,the same consists of one, or a pair of settling tanks 1 and 2 suitably mounted on a supporting structure 3, and adapted to hold the wash water A delivered thereto from the pump well 4 located between said tanks, as shown. The tanks are provided with endless conveyers 5 and 6, respectively, for carthe invention is to known type and is ingeneral use, and no claim. istherefore made to the samein the present case,

In the use of coal dust, which is not carried away a with PatentedOct. 6, i914.

rying ot]? the, Washed coal which is lied to the apparatus means of the sluices 7 and 8. The foregoing described apparatus is of v the settling tanks 1 and or ust one of them as the case may be,fine

the \vash water accumulates or cakes until the deposit has to be removed by aseparate a washing operation, since the same cannot be carriedby the conveyer, by reasons of being out of its path of operation, and; of the tendencyof such dust to stick to the sloping sides of the tank as at present used. To avoid this, a separate or independent vessel is loa cated within eachtank and forms the coal receiving anddelivering receptacle. Each of said vessels is constructed of spaced Walls 9 and 10, having perforations 11 through which the wash water may freelypass.

A suitable filtering substance 12,, such as coal, slag, charcoal, coke, or other like material, is contained within the space provided by the walls of the vessel, and has for its purpose to filter or clear the water of all coal dust Which is held in suspension by the water percolating throughthe apertures 11. By this provision the coal dust is kept within the filtering vessel, and when the same has caked or accumulated to any extent on the walls thereof, it is removed by the buckets of the conveyer in the course of their normal operation.

The means for delivering the filtered water from the settling tanks consists of a pair of spouts 17 which carry off the overflow from said tanks into the pump well, as shown in the drawing. From the pump well 4 the water is, carried to the usual jigs 16 through the pipes 16 and 17*, and the a force pump 18*. It is proposed, however,to j

conduct the wash water from the settling tanks directly to the jigs 16 without first delivering the same into the well 4, and to this end pipes 18 and 19 are connected with said settling tanks, and the pipe 16 bythe branch pipe 15. The pipes 18 and19 are provided withvalves 21 and 22, and the pipe 16 with a similar valve 23, the purpose for which will be obvious. The washywateris re-delivered to the filtering vessels from the jigs. 16 by means of the sluice-ways 7 and 8.

Each of the filteringvessels is with a pipe 20 of relatively large 4 rovided g; iameter, J

. rovidino an' annular s ace therewith said P h a and has for its purpose to provide a means for cleaning out said vessels in the event that there should be an accident to the machinery so that the coal could not be taken up by the buckets of the conveyer. 7

It is obvious that those skilled in the art may vary the details of construction and arrangement of parts without departing from the spirit of our invention and there'- fore we do not wish to be limited to such features, except as may-be required by the claims.

We claim:

In a settling apparatus for coal washings the combination of a tank adapted to hold water, and having an over-flow spout; a filtering vessel located within said tank and vessel constructed with inner and outer pera the sluice substantially as described.

pendicular and perforated walls, and a granular filling between said walls; asluice for delivering the material to be separated into said; filtering vessel; an endless conveyer operable within the filtering vessel for carrying off the material collectedv therein;

a well located adjacent said tank and adapt ed to receive the over-flow from the tank spout; a pump; and pipes connecting with said pump and well for carrying oil the water from the well and delivering same t In testimony whereof, we atfixour signatures, in'presenoe of two witnesses. EUGENE G. BURKS.

NEENIAN HAYES. Witnesses:

SAM FOLEY, J. W; ADAIR.

each, by addr ssing the Commissioner of Patents,

Washin ton, 1 c.

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