US1493092A - Art of removing fiate dttst from containers - Google Patents

Description

May 6 1924. v 1,493,092

' R. w. H. ATCHERSON K ART OF REMovING Fiu pusT FROM CONTAINERS Filed sept. 12'. 1921 ull ` YEwen-a Patented May 6, 1924.

UNITED STATES RALPH W. Il. AT('JIFJERSON,V OF INDIANA HARBOR, INDIANA. l

ABT OF REMOVING FLUE DUST FROM CONTAINERS.

Application `filed September Y12, 1921. Serial No. 500,149.

To all whom t may concern.'

Be it lrnown that I, RALPH WV. H. ATGHER- soN, a citizen of the United States, residing .s at Indiana Harbor, in the county of Lake 1 ample dust catchers, dust pockets, dust-jre.

ceiving spaces in cleaners of thev filter-pad type, electrical precipitators and tangential whirlers.

The removal of the dust economically and without danger to the workmen or equip# ment, from structures inwhich. it isl dis-I posed, either` for discharge as waste, for treatment and return tothe blastfurnaces,

'or for other disposal, has presented a great problem in thepractical operation of .blast during the emptying of the dust-catcher, or

fy lbodyportion of the container. The catcher with including the dust catcher, onother y The purpose lofrmy' invention, generally I stated, is to provide for the handling of fthe,4

lflue-dust in a manner. preferably lnot to in- A terfere with the; continued operation of ythe are permitted to rise inthe washer in opposerve'the furnacev systems.

The common practice has been to loadthe luedust` into cars, but such handling ofthe dust has presented many objections certain of which are the danger of ,injury to the workmen `and equipment, notonly from escaping gas, but also from the dust, especia-lly when the dust is hot, the great attendfA .ant expense, whiclrincludes the costofy cars forsuch use, the cost of operating the same,

comprising the cost of motive lpower for the cars and the labor for'operatingthem which latter is augmented when the cars are.. overloaded with the dust and replacementy in the cars of the dust spilled therefrom, is

required, the irregularity vof the operation of the, .blast furnace gas-cleaning system other dust container, and the impairment o the efficiency of thedust-catchers, or other dust containers, due to the containers becoming partially lilled with dust andbecoming furnacefand the apparatus associatedpthere-y containerin which. the dust iscauseld tobecome disposed, and ina manner to avoidfin- `jury` Vto the workmen and equipment, congas generated by theblastfurnace,

and to minimize the expense of such disposal, both from the standpoint of originall cost of the apparatus and its upkeep, and the labor cost for operation; and generally to improve upon prior .practices of yflue-dust disposal` or transfer.

Referring to the accompanying drawing: I

'Figure 1 is aviewin elevation 'of an installation embodying my invention andk 41nvOlVing, as ay part of a blastfurnaoe equipvment,;a dust-catcher and a gas-washer,

and means for transferring, or conveying, .the flue-dust .precipitated in the dust-catcher, all

vin `accordance with my invention; and 'Figure 2, a similar view, with certainportions of the apparatus shown 1n Fig. 1 broken away, showing another arrangement of the parts illustrated in Fig. 1 and embodying my invention. t. v n

I have chosen to illustrate my invention 1n ,connection with apparatus designed to receive the flue-dust directly from a blast furi nace and eifect its separation from the products of combustion with which it is mixed,

,butv it will be understood that the invention lis Anot limitedto employment in such an apparatus.I .l

I Infthe particulary arrangement shown in Fig. 1, S'represents a conduit which leads `:fromothe `outlet of a blast-furnace (not 'shown). thisv conduit or down-comer opening .at'itslower en d into. a dust-catcher 'represented at 4 which-may be of any desirable construction, such, for example, as is commonly inuse ,and whereinthe .dust entering it withthe products of combustion from the blast furnace, `is caused to becomeprecipitated into the lower hopper-shaped end of the catcher 4, the hopper-formed portion of the catcher in thel particular construction shown constituting vthe bottom .wall of the is shown as provided at its top withy a conduit 6 which opens at one end into. the

catcher and -at its'opposite end into a gaswasher 7, as shown into the bottom of the latter, which may be of any desirable construction such,- as for example, as lis, no w commonly'fin use wherein the productsI of combustion discharging from `the catcher 4:

[finer suspended solid 4matter carried over v the .dust`int`o areceptacle, f

with the gases into the washer, are' thrown down with the. water and discharged with the latter through an outlet pi-pe 8, the washer being provided with a gas outlet pipe 9 through whichV the gases are conveyed to any desired point in accordance with common practice.

The lower end of the catcher 4 is shown as formed with a spout portion 10 into which t'he upper end of a pipe 11shown as inclining downwardly, and preferably valved at 12, opens, the lower end of this pipe opening into a substantially verticalpipe 1 3, the lower open end of which is provided with a valve 14, the pipe 13 openingabove' the Vvalve 14 and below the pointof connectionA .ofthe pipe 1 1 with the 4pipe- 13, into a pipe 15 preferably lformed with an upwardlyeezitejnrding ybend 16', Ithe outer end ofthe l1 5 being llocated directly above af sfluiciiig4 gutter, flume, ,or sewer 1'?. The 13 Cates with one end of?J pipeA above the' point at which the pipe` Qp intoi.it, the other end .of p ipe 1 8 opeilingU to the pipe .8 through a coupling 19, thelower branch 20 of which is valved, its branch 21 opening into a pipe 22 formed 'with fan upwardly-,eztending bend 2 3 extending at a higher elevation v than the highestpoint at whichthe piping leading from the lother side-branch v24 ofthe couplinglQ, extends, the extremity of the .pipe being open and extending above the gutter 17 .wliereby, Should the piping leading Way from the 'sfide branch 24 become clogged, the r washing water may `escapel from the washer throughl the pipe 22 l In the operation of the apparatus the flue-dust precipitatedinhe catch inf-T4 ,descende in drycondition the 11 and 4into the vpipe 13 wherein it is contacted' by the wash water flowing 'from the 7 through the pipes 8, `18 and 1 3. .The water lowing through the pipe 13 commingles L with the 'dust7 suppliedv to theipipe P13 as stated, and the y intermixed water -and.dust discharges rom thepipef13 yinto the pipeV l5 and thenceinto the trough ,17 throughwhich latter it flows yto any desired for' settling of 4the dust from`- waterv subsei quent use or treatment, or the disposal thereof otherwise. i

The .meer i is shawn jaspfeviridwim .an @nuance at, as igwefpndpmieeiiedi by a vailvve26which permitsof th d''SG'l `-1 l", L l.. y of clow, the point at which the .p1 opens into pipe 13, the dust descending in sf'Said"efe-enfermerapipe section.'

ie" 18m the pipe 11 dropping into the water discharging from the pipe 18 into pipe 13.

In both arrangements shown it is preferred that the piping referred to be so proportioned and disposed that the flow of.

shown for the ready removalo' any dust may becornedampened suliiciently to clog the pipe 1 1, the' provision of an opening`-inthe side of the`r spout-portion 10,

In the normal operation of the said opening-being normallyA closed by av plu'g,`through which asuitable rod may be introduced into pipe 1,1, to force wendustaccumulations therefrom and into pipe 13. Under 4certain ,conditions it is desirable, ,for -purpose of economy, to employ as the 'sluicing water for k'the dust, the vwaterdischarged from the gas washenbut vit will be understood that any other source of desirable fluid may be' utilized regardless of its having been previously used forfa-'nother purpose., It'kwillals'o beun'de'rst'ood that my" i n ipro` \'fedr method and apparatus may bek utilized in connection wit-li' othe`r arrangements than those y.nivolvmg a so-called dust catcher. These, as well as various othermoditications, both as to the manner o'fgpractici'ng my improved method and as to the apparatus shown, may be employed without departing from the spirit o'f-my invention What I cl'aiinas new, and'desire to secure by Letters Patentfis';

1.` Apparatus for the purposefse't forth, comprising, in combination, a clust-container,

a source of'liqu'id, and piping connected the discharge end of said container: and with said source 'of liquid comprising a pipe section extending at anangleto thehorizoncontaining Aan openingv in its side wall, and other lpipe sectionsl'eading from said iiq'id Supply and nemend'dealings end, resp e cti vely,one of said last-referred-to pipe v'sections opening into the upper'end ofk eine sweetened-te jpilpe'secfion endg-the lother .thereof `(5011111111iii'eatingi Twithg and at, said opening in the side wall ing a. pipe section extending at an angle to the horizontal and in communication with the discharge end of said container-,gland a Water-seal-forming pipe having an upwardly extending portion and leading from said outlet of said Washer to said frsterefe'rred-to pipe section for the purpose set forth.

3. Apparatus Jfor the purpose setliforth, comprising, in combination, a dust-container, a gas Washer, pipingfA connected With the discharge end of said container and with the liquid-outlet of said Washer and comprising a pipesection extending at an angle to the horizontal and in communication With the discharge end of said container, and a pipe leading from said outlet fof said Washer in an upward direction and communicating with said rst-reerred-to pipe section for the purpose set forth, and another pipe communicating with theliquidoutlet of said Washer and extending to a higher ele- 20 Vation than said second-referred-to plpe.

RALPH W. H. ATCHERSON.

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