US1440033A - Dust removing and collecting means - Google Patents

Description

Dec. 26, 1922. 1,440,033. J. A. STEVENS ET AL.

' DUST REMOVING AND' COLLECTING MEANS.

FILED SEPT.28, 1918- 2 SHEETS-SHEET 1.

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Dec. 26, 1922.

J. A. STEVENS ET AL.

DUST REMOVING AND COLLECTING MEANS.

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citizen of of the Swan ported by suitable ceii'leentneall 'ljhe 1mm J, which MM such needs 1 the y Within space '18 1e 17, are me the 7 538"- 7 are substantlallv nte die- 3 space to gases a h isexpelle'd i herenm'f'l' er he re 110 iu 'ieeted by I the entering gases nte hoppers'pi'ogases (11st whi space in the manner hin thi .vhelre "6 2y setfle more "the Rink by con 11) is sine-1 be under immiihen will hes-3 1 epemt'ionef the g0 ed with flu or tee mmw the by the a prosi-n e um 1 ng,

eh rstoed mreed upwardly- -t use, 111 whleh theen- EHOVlTl these reauhly be until are mn'nmlly in :1

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eases, whic} 0b 01' othev eeliii. T1 e St-ildklS supported by z 12111 .304 carry nets.

. 35 tion and he element e1" H 'e stationary 01' g 1 1e, Whll are reversed, the grooved OHS housing therefor. The steel: may also pass through a floor 12. The can 1;; soot the cendlt 1d matter, are conducted by fines comm manner W (T In if U m V 0 1 11. S e I a b 1 d n a H 3 1 being disposed at 90 apart 3" z 111;: ends tmvm'ds than comp :a 2 m1 9i, dispeseil I 'ihese hoppers m nds b3; pivoted wives nped hopper Jase e"? the stnek. H1611 10 W87. e

funnel sh it the 1 alosed at CLUE,

'l-L in such a um h n ign; m mm. & me e \1 genhally and Lmpart to the gases gases the 50 stack a whirhne meti n in TM ted by closed the othe be open, and versa. The V "weem-a he 01 ed in general h? the 1s (a .ipesed h ave indiea ehuruct 1 the fines 13.

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suitable arm or lever 30. The soot or dust from the lower hopper is discharged into a suitable chute 81, preferably provided with a funnel-shaped opening 32 at its'upper end for collecting the soot, the sootor dust being discharged at any suitable point by the chute. The soot within the hoppers is indicated by the reference numeral 33. The upper hopper is provided with upwardly swinging doors 34, which are readily opened in the event that an explosion should occur within the space between the twohoppers. The lower hopper may also be provided with one or more explosion doors 35 opening upwardly to take care of an explosion in the spacein the stack below the lower hopper. The carbon which is ordinarily carried away by the draft, and the presence of which is objectionable, is, in accordance with our invention, collected and used, thus conserving the carbon. A ventilating flue 36 furnishes communication, when desired, between the spaces below the lower hopper and that above the upper hopper, respectively, a suitable valve 86 being provided in the lower end of the flue. A ladder 37 may also be provided by'which access may be had by the operator to the parts within the stack. While we have here shown two hoppers for the reception of the dust, di posed one above the other, it will, of course,- be understood that a single hopper may be used.

The provision of the double hoppers with the valves inter-connected, in the manner specified, permits of the removal of the dust without disturbing the draught. Suitable doors 38 are provided in the lower portion of the stack through which the operator may enter the stack. The manner in which the soot or other solid matter is re moved from the gases within the stack, collected and removed, will readily be under stood from the foregoing description and is as follows:

The gases entering the stack from the flues are given a whirling movement in the manner described, the centrifugal force to which the particles of soot in the gases are thus subjected combined with the upward movement imparted to the particles by the grooved conical member acting to expel the soot or dust outwardly and upwardly through the spaces between the louvresv 15 into the space 18, in which the gases are in a state of quietude, and from which the dust may settle through the stack into the upper hopper. From the upper hopper the operator, by actuating the valves 25, causes the soot to descend into the lower hopper, from which it is, discharged into the chute, the bottom of the stack always remaining closed through the described co-action of the two hoppers.

WVhile we have illustrated and described example, as a vehicle which is driven' through the stack beneath the lower hopper.

What we claim and desire to secure by Letters Patent of the United States is 2- 1. A draft producing stack having a closed bottom, a cylindrical member closed at the bottom and open at the top and located within the stack above the bottom thereof, said member having its walls spaced from the walls of the stack and having louvres therein, and a flue arranged to introduce gases within said member and tangentially of the walls thereof, whereby dust carried by the gases may pass through said louvres to the bottom of the stack without substantial reduction of velocity of the gases. 7

2. A draft producing stack having a normally closed bottom, a cylindrical member closed at the bottom and open at the top and located within the stack above the bottom thereof, said member having its walls spaced from the walls of the stack and having louvres therein, and a flue arranged to introduce gases within said member an d tangentially of the walls thereof, whereby dust carried by the gases may pass through said louvres to the bottom of the stack without substantial reduction of velocity of the gases, said bottom being provided with vaives, whereby the accumulated dust may be removed.

3. A draft producing stack having a normally closed bottom, a cylindrical member closed at. the bottom and open at the top and located within the stack above the bot tom thereof, said member having its walls spaced from the walls of the stack and having louvres therein, and a flue arranged to introduce gases within said member and tangentially of the walls thereof, whereby dust carriedby the gases may pass through said louvres to the bottom of the stack without substantial reduction of velocity. of the gases, said bottom being provided with valves, whereby the accumulated dust n'lay be removed, and a secondary valved bottom below said normally closed bottom, constructed and arranged to be closed when said normally closed bottom opened, whereby a reversed draft through the louvres is prevented.

i. A. draft producing stack having a closed bottom, a cylindrical. member closed at the bottom and open at the top and located within the stack above the bottom thereof, said member having its walls spaced from the Walls of the stack and having louvres therein, and a flue arranged to 1n- -troduce'gasesWithin saidmeinber and tangentially oif thewalls thereo'lt',said lo'urr'es eXtencing down to. and opposite the mouth Of Sttld l'lue, whereby dust ,carried by the gases may pass through said louvres to the bottom of the stack without substantialre duction' o1 velocityloi the gases. r

5'.,rl draft producing. stack; a. flue arranged to introduce'gases into the stack. and tangentially of "the WttllS thereof, and a conical member located centrally of the stack and opposite the mouth of the flue,

with the ape); of the cone 'ab'ovethe level. ot the mouth fol: the flue. I

61A draft:producing: stack, a fine ar- 'anged to introduce gases into the stack and tangentially oi: the Walls thereotl', and a con- 1cal member located centrallyot the stack and opposite theinouth of flue, with the apex of the cone above the level of the mouth of the flue, the surface oi the cone walls thereof, and a conical member located centrally in said meniber and opposite the nioutlt otthe flue, Withthe apex of the cone above the level. of the mouth of 'a'iue.

A draft producing stack, a cylindrical member closed. at the bottom and open at the top and located within the sta ch, said member having its Walls spaced iz-onrthc Walls of the stack and having louvres therein, a flue arranged tointroduce gases Within said member and tangentially of the walls thereof, and a conical member located centrally in. said member and opposite the mouth of the fine, with the apex ot the cone aoove the level ol the mouth of the line, the surface of the conebeing provided With a thread-like, spiral groove.

9. A draft producing stack, a cylindrical member closed at the bottom and open at. the top and located Within the, stack, said member having" its Walls spaced from the walls of the starch and having lourres therein, a line arranged to introduce gases within said member and tangentially oithe Walls thereo'l'. and a conical member located centrally in said member and opposite the mouth of the line, with the apex of the cone above the level of the mouth 01 the line. said lm irres extending: down to and opposite the mouth of said flue. v

10. A" draft proi'lncina stack harino; a continuous vertical llue therein. a substan tially horizontal flue connected to said dropli nection with said eta; I in the vertical line adjacent the horizontal vertical flue at a point aboveithe bottoni'of the stack and having a substantially un'ob-:

structed connection With said vertical flue, a normally closed dust-receivingbottom beneath said FYL bottom ()i th aclr and the horizontal flue, and means inner )y the dusta'eceivin bot- 11 Refill t producing stack ha tinuous vertical flue therein, a substantniilly horizontal flue connected to said vertical,

ica'l flue/and between "the flue at al point above the bottom of the staclz and having; a substantially unobstructed con flue entrance, a normally closed dust-receiw ing bottom beneath said vertical flue and between the bottom of the stack and the horizontal flue, and-means whereby the dustreceiving bottom may opened to permit the dust to vice; a 12. A draft producing stack havinga continuous vertical flue therein, a substantially horizontal gas flue connected to s'aidvertica flue at a point abovethe bottom ofthe stack and having a substantially unobstructed connection With said vertical flue, a pair of normally closed dust-receiving bottoms spaced" l t, a dust separator drop into rh'ist coni 'eying deapart and located beneath said vertical'fiue and between the bottom of the stack and horizontal flue entrance, and means whereby 13. A. draftproducilw stack having a con- ('3 tinuouslrerticallti'ue therein, a substantially horizontal flue connected to said vertical flue at; a point above the "botton ol he stack and having a substantially unobstructed connection with said vertical flue, a dust separator in the vertical fine adjacent the horizontal flue entrance, a pair of normally closed dust-receiving bottoms spaced apart and located beneath said vertical hue and between the bottom of the stack and the horizontal flue entrance, andrneans whereby the dust-receiving bottoms may be opened to permit the dust to ing device. I r

14, A draft producing stack having a continuous vertical tlue therein, a substantially horlzontal gas flue connected to said vertical flue at a point above the bottom of the stack and having a substantially unobstructed coni drop into a dust-conveyroo dust-conveying device, said means comprising a valve in'each dust-receiving bottom,

said valves being interconnected to prevent the opening of one valve; until the other valve-is closed. 15. A draft producing stack having a continuous verticaluluetherein, a substantially llOIlZOIltEtl gas flue connected to sald vertical verticalflue and between the'bottom. of the.

stack and the horizontal flue, and means whereby the'dust-receiving bottom may be opened to permit the dust tolfall into and be removed by a vehicle, moved through the stack beneath the dust-receiving bottonn 16. A draft producing stackhaving a con-v horizontal gas-flue connected to said vertlcal tinuous vertical flue therein,-a substantially horizontal gas flue connected to, said vertical flue at apoint abovethe bottom of: the stack and havinga-substantially unobstructed con.

nectjiqn with said vertical flue, a dust separator in the vertical flue adjacent the horizontal. flue entrance, a normally closed dustreceiving bottom beneath said. vertical flue.

andbetween the bottom of the stack and the horizontal flue, and. means whereby the dust,

receiving'bottom may be opened to permit the-dust to fall into andbe removed by a vehicle moved through. the stack beneath the dust-receiving bottom.

17 .A draft-producing stack having a continuous vertical. flue therein, a substantially I horizontalgas flue connected to said vertical flue at a point above the bottom of the stack and having a substantially unobstructed connection with said. vertical flue, a pair of normally closed dustq'eceiving' bottoms spaced'apart and located beneath said vertical flueiand between the bottom. of the stack andthe horizontal flue entrance, and means whereby thedust-re'ceiving bottoms may be opened to'permit the dust to fall into i and be removed by a vehicle moved through normally closed dust-receiving bottom beneath said "vertical flue and between the bottom .of the stackand the horizontal flue, and

means whereby the dust-receiving bottom gential connection with said vertical flue, a A

may be opened to permit the dust to drop v into a dust-conveying device.

19. A draft producing stack having a continuous vertical flue therein, a substantially flue at a point above the "bottom of the stack and having a substantially unobstructed connection'with said vertical fluearrangedto cause the column of gasesin the stack to 1'0- tate as the gases pass upward, a normally closed dust-receiving bottom beneath said vertical flue and between the bottom of the stack and the horizontal flue, and means whereby the dust-receivingbottom may be opened to permit the dust to drop into. a.

dust-conveying device. In testimony whereof we have hereunto signed our names in the presence of two subscribing witnesses.

. JOHN A. STEVENS. .ARTHUR D. PRATT. Witnesses to the signature of John A; Stevensi Jot-1N A. W. DIXON, D. S. Jnoonos. WVitnesses to the signature oi? Arthur D.

' Jenn A. W. DIXON,

;NA'IHAN E. LEWIS.

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