US1103304A - Smoke-precipitator. - Google Patents

Description

G. W. LEN T'.

SMOKE PBBUIPITATOR. y AP'PLmAATIoN FILED nu 2s, 1913.

, 103,304- Patented .July v14, 1914 2 SHEETS-SHEET 1.

C. W. LBNT.

SMOKE PREGIPITATOR.

APPLICATION FILED MAY 26, 1913.

1,103,304. Patented July 14,19%

2 SHEETS-SHEET 2.

IN VEN TOR.

U12/MMM A TTORNE Y.

W1 TNESSES:

,CYRENUS W. LENT, 0F BYRON, CALIFORNIA.

SMOKE-PRECIPITATOR.

Specification of Letters Patent. Application mea my 2e, l191e. i serial No. massa Patenteaauly. '14, 1914.

To all whom t may conce-rn Be it known that' I, Cr-nnNUs W. LENT, a citizen of the United States, residing at Byron, in the .county of Contra Costa andl State o California, have invented a new and useful Smoke-Precipitator, of which the following is a specificatlon in such full and clear terms as will enable those skilledn the art to construct and use the same.

l This invention relates to anapparatus for the precipitation of the solid or soluble particles from smoke;

lt will be understood by those skilled in the art that in the operationr of boilers and other industrial furnaces that great` quantities of smoke are frequently emitted therefrom.- This smoke often contains minute particles of` carbon, sulfurous dioxid and other impurities, which. are often the cause of litigationj and complaint upon the part of persons in the vvicinity of the furnacey and-often cause disturbance for miles there? from.-

While in the-i present case the invention4 has -been illustrated as applied to an ordi nary form of uprightboiler, it will be apparl ent to those skilled in the art that it may be.

applied equally Wel to any furnace having a smoke stack extending therefrom.

Another object of `the invention is'to proi vide an apparatus which is capable of col# lecting solids preci itated in order to per-.mit j the recovery there rom of a useful product, I

as in the case of lamp smoke or quicksilverf g smoke. must pass. A ipipe 14 Vconnects the fumes.

Other ,objects will appear as the descrip* i tion proceeds.` l An embodiment of the invention is Shown* 1n the drawlngs 1n which the same reference numeral lis applied to the same portionf throughout, but I am aware that there are;

. The paddle whee s 17 are each ro'vided many` modifications thereof,

Figure 1 is-a view in side elevation partly;

in section-of the* complete apparatus, Fig. 2 is a side elevation of one of the wheelsl used for breaking `up the water stream and causing a more intimate mixture therewith `of.y

the'smoke, Fig. 3 isaportion of one of the i wheels and the bearing thereof used for:

breaking up the water stream, Fig. 4 is a View .of the pump and smoke precipitating chambersat'right angles `to liig'. 1,and Fig. 5 is a View of'the'boiler taken on the liney lt will be understood by those skilled ini said =journal bearings` being outside o vcasinggfor the purposeof preventingrgg:v the the art that any suitable material may. be?` usedifor' the construction of gthe smoke pre;

cipit'atintv,vv chambers, the kind' of Smoke bef ing'treated .determiningthe character' of mtbterial to be yused, eoa l .smoke requiring,noth-` ing more than .a metallicl precipitator while smoke containing much sulfur; wouldlequire v an insoluble .tihng .to .preventE its rapidde v struction '.Ihe numeral 1l indica-tes an ordinary boiler. `having a'furnace door 2, gage 3 and smoke stack 4. The smokef stack is provided.y with a damper 5 operatedby. means of thehandle and it.4 has a pipe 7 connected therewith, which pipe l extends to vthe smoke precipitating chambers-The ipe .7 iscon- 10 and .11, .Thepipel0'extendsupwardly and 'is'. conn'ected with the top of, the smoke preclpltatmg chamber 8, a valve, 12 enabling the quantity of steam discharged therefrom to beregulated at .will' Within the smoke precipitat-in .chamber 8 there area number of inclined aiiie plates 13, said plates'overr lapping eachotherat theincenterin such a wayy as to. causethewater discharged from one plate to fall upon the next vplate below, thus .making a practically continuous cui`- tam of water through whichthe gases and upper smoke preeipitatin chamberwith l the lower chamber 15. This ower ehaniberhas a lurality of oppositely placed v inclined ba e plates 16, the edges .of said plates being set to discharge uponthe edges ofthe blades of a series of addle wheels 17 With, four blades and are journale rin suitablebearings 18 outside 4of the casing- 15, the

smoke and anygritty particlesl that might be. therein from injuring said beari 11gs. At the bottom the chamber. 15 is provided with the discharge pipe\ 1 9, said pipe beinghoriv Zonta-ll at 2()A to connect withthesludge tank 2 1, The .pipe 11 is connected-with@ horizontal pipe 22, which-latter has a valve 23 while. a pipe 24i`s connected with said valve and'fhasa spray nozzle 25 thereon within ,the pipe. 19, The spray noaalewisgffer vent t e water from -siphonlno down b the opening 26. The .water ischarge plpeemptieslinto awaterf tank 30 the ,purpose of causing thel necessaryvdownwar draft through both of the smoke precipitating chambers and into the sludge r The sludge tank 21 is of suchdepth and area as may be necessaryto collect the solid particles from the given plant. It is provided with a discharge lip 26 and awater discharge pipe 27 ,the latter having anv upwardl turned portion 28 and vent 29- to'pre- Afromwhich the water supplypipe 31' extends-to a suitable pump' 'S2-said pump'having a plpe 33 ex- .tendm therefrom and discharging into the vertica pipe at the top of the first smoke precipitating chamber. n l j From the foregoing it-'will be clearth'at in operation Athe ire'ls started in the boiler furnace,`a damper in the smoke stack 'being left openluntil said re raises suflicient steam. to discharge the same 'into' the t'op precipitating chamber 4and out i the spray nozzle 25. Thesupply of steamlet into the top precipitating chamber is for the pur-' posel'o'f humidifying the smoke to suchv an 'extent-'asmay become necessary to cause either the solid orsoluble particles therein to fbe either 'precipitated -in or dissolvedby the: 'wa-ter, while the purpose of humidiifying the smoke and smoke particles will float tof'crea'te the necessary draft' for the furnace', 'all excess gas passing of from lthe precipitating" tank by Way' of the. ventpipe 33. After the boiler has got up steam, a certain amount'is allowed to discharge into the' upper smoke precipitating chamber andv va` sullicient amount to cause the necessary the spray nozzle,

draft is discharged from '25, whereupon thedamper 5 may be closed andjall of the smoke will be passed through the smoke precipitatingchambers whereupon the pump may be started and will dis-jv charge water into the. top/of the upper smoke precipitating chamber, which Water will pass therethrough from one baliie plate'.

to the other in the form of a thin curtain which 'will compel the smoke to pass therethrough, and as the water passes -down 'intothe second smoke precipitating chamber;` itA will discharge at lthe lower edges of the 'bathe plates 16 on tothe blades of the wheels 17, causing the latter to beat up the particles of water with the smoke, thus effectively precipitating the solid particles or dissolving soluble particles in the Water, andas the mass of water and soluble particles pass downwardv it is discharged into the tank 21', thesolid particles collecting in the bottom thereof as sludge. Since more -or less of the upon the top of the water as a screen there is an opening in theside of the tank 21 adjacent'the discharge lip 26 to permitthisv scum` to" be tank rcipitatingchamber having a the spray'nozzle 25 is for' .the combination of l nace, a flue leading yfrom tv smoke through both of portion ofthe receptacle 21, the'object being to prevent the the tank 30, while ting ample l depth heavysludge. Having' th'us. described my invention what I claiml as new 'and' desire to secure by Letters Patent ofl the United lows, modifications 'Within scum from passingl into at the same-time permitof the ftank tof collect y'claims being expressly reservedz.

'1. An apparatus forthe precipitationof smoke comprising in'combination a steam generator, A.a furnace therefor, a iiueextending away ,from said furnace, a'smoke'pre- States, is as folf 'the scope of the plurality of baiiie plates therein, Ameans to deliver af'- strea'm of water upon saidbatlieplateavpipe connect-ions to deliver steam intov said chamthrough, a sludge tank into'which the Wa` 'ber and to induce a gas current there-fter-,"steaml and smoke are-discharged, `and a pipe to discharge the water. from said sludge tank to a 'tank 'from which the water is pumped to the smoke precipitation chamber, substantially as described;-l v 4 2.' In a smoke precipitationl apparatus,

a steam eneratona fure furnace to 'a smoke precipitation chamber, a plhrality of overlapping vinclined baffle plates' in, said chamber, means to deliver a stream of water upon said bathe-plates, a second smbke -pre- Vcipita'tion chamber with which the first chamber communicates, inclined baliieplfates and revoluble wheels in said second' chamber t0 mix, the smoke and water passing therethrough, a .sludge tank, pipe connections from the steam generator steam and for inducing the movement -of chambersI and' into lthe sludge tank, andl means to return the water froml the sludge tank to the smoke precipitation chambers for reuse, 'substantia ly as described,

3. A smoke prising the combination of a steam. generator, a furnace, nace and connectedl with a smoke precipitation chamber, a lplurality of overlapping baiile plates therein a chamber adapted to deliver a stream o waterinto 'the top of for supplying the i first smoke precipitation chamber with said l precipitation precipitation apparatus comi-jl i a iue leading fromthefurducin said smoke precipitation chamber, and upon said baille plates, a second precipitation 'ch amber'having a plurality of inclined baff He plates therein, revoluble paddle Wheels under the lower edges of ,the baiiie plates and in the second precipitation chamber and capable of being rotated. by the waterv 'passing over the edges of said baie plates,

steam connections for supplying the smoke precipitation chambers'with steam for inthe movement of smoke and gas theret rough, and a sludge tank into which the Water and smoke are discharged, sub-y stantially as described.

4:. In an apparatus for the precipitation of smoke, the combination of a steam gen- 'erator,.a furnace, a ue leading from said furnace, a smoke precipitation chamber 'with which said flue is connected, a plurality of oppositely disposed,.overlapping inclinedbaie plates in said chamber, a pump for discharging water into lthe top of said chamber and upon said bathe plates, a steam pipe for delivering steam into thetop' ofv said precipitation chamber, a second chamber connected with the first one and having a series of oppositely inclined bai'e plates therein, a. plurality of paddle'wheels in said second chamber, each adapted to befrotated by the'water passing o the several baiile plates, a sludge tank,a pipe connecting the second smoke precipitation chamber with the sludge tank, and a steam spray nozzle in lsaid pipe to induce the travel of smoke and gases through said chambers, substantially as described.

In testimony whereofl I have hereunto set 'my hand this 19 day of May A. D. 1913,

in the presence of the two subscribed witnesses.

C. W. LENT.- `Witnesses:

C. PrGn'ni'rlN,

HENRY B. LIs'rER.

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