US824469A - Apparatus for purifying smoke. - Google Patents

Description

BEST AVAILABLE COPY 24,469. PATENTED JUNE 26, 1906.

W. GLINE.

APPARATUS FOR PURIFYINGSMOKB. APPLIOATIOEI FILED YEB.1,1905.

XAA/wmx 7/ 7 M UN ITH A EST AVA o l'VLLLIAh I OLINE, OF LANCASTER, PENNSYLVANIA, ASSIGNOR OI OJ THIRD TO JOHN F. BRIMMER AND ON I i-THIRD TO WILLIAM. FUI-IRBIAD OF LANCASTER, PENNSYLVANIA.

Specification of Letters Patent.

Patented June 26, 1906 Application filed February 1, 1905. Serial No. 243,659.

To all whom it may concern.-

Be it known that I, WILLIAM CLINE, a citizen of the United States, residing at Lancaster, in the county of Lancaster and State of Pennsylvania, have invented certain new and useful Improvements in Ap aratus for Purifying Smoke, of which the fo lowing is a specification.

My invention has relation to an apparatus whereby the heavy and thick products of combustion may be removed from smoke prior to its entrance to and c exit from the stack proper, and in such connection the invention contemplates an arrangement and combination of arts whereby the washing of the smoke and t e precipitation of the heavier and thicker products of combustion are efficiently performed without interfering with the draft.

Heretofore manufacturers and others who desired to use soft coal or similar fuel have been restricted in or deterred from its use by reason of the heavy clouds of smoke issuing from the stack after each firing of the furnace or furnaces, said heavy clouds of smoke being considered by the authorities in many municipalities a public nuisance. Some attempts to palliate or remove this defect of soft coal as a fuel have been devised, such attempts being directed along two main linesto wit,'first, the more complete consum tion of the fuel in the furnace, flue, or stac or, second, the screening and washing of the smoke in either the smoke-stack or an auxiliary flue or condensing chamber leading from the flue of the furnace to the stack. In the first of these attempts the reor anization of the furnace or the change in plan of the stack and flues was necessary, an

such reorganization or change has been so expensive as to practically prevent the use of such means for the purposes required. In the second of these attem ts the introduction of screen-plates or be e-plates in the stack or flue-chamber, as well as the introduction of liquids in said stack and chamber, have together served to increase rather than decrease the nuisance, inasmuch as a serious diminution of the draft results from the introduction of such impediments as plates or screens or spraying-nozzles in the flue or stack.

The object of my present invention is to provide a simple and practical device or apparatus whereby the heavy or thick partir of the smoke are removed prior to the exit the smoke from the stack and without pairing the draft, but, on the contrary, m urably increasing said draft to thereby sec a more complete consumption of the prior to the exit of the products of coml tion from the stack.

The nature and scope of my invention. be more fully understood from the follov description, taken in connection with the com anying drawings, forming part he] inw 'ch Figure 1 is a view illustrating diagramr ically an apparatus for carrying out m vention, the stack bein illustrated in ver section, whereas the ue and flue-cha1 are illustrated in transverse section. is an enlarged plan view, artly se illustrating 1n detail one of the spraye Referring to the drawings, a repres flue from a furnace or heater, and sents the stack or chimney. The I tally-arranged flue a is connected with the stack b by a flue box or cha' The cross-sectional area of the inlet in chamber (1 from the flue a is coequal -'I;1;;$f;: cross-sectional area of said flue a, r cross-sectional area of the outlet fr chamber d into the stack 1) is also the cross-sectional area of said flr tending into the chamber d is a p plying one or more branch pipes when formed substantially as herei scribed constitute a device for pulv atomizing a li uid, Water by prefere. plied to said ranch pipes e throu pipe e. From the bottom of the cha" extends a drain-pi e cl, conducting uid collecting in t e chamber (1 to tank f, arranged to receive the liquid with the heavier and thicker particle. the spray separates and carries off fr smoke passin through the flue-chair Each branc pipe e" is constructed ranged substantia 1y as shown in Fig. 2 pipe 6 has at a certain distance a art a of erforations e the walls 0 whic pre erably straight. Th liquid in pip projected through these perforatim strai ht out from the pipe e in a dire in w 'ch the products of combusti i traveling through the flue-chamber d. Op-

BEST AVAlLABLE COPY ite each perforation is arranged a stud of preferably conical shape, the apex of re cone approaching the perforation 6 as clearly illustrated in Fig. 2. The jet of liq- 1l(l issuing from each perforation e is pound- :d or pulverized into a fine mist or spray, he series of jets thus forming a more or less hick veil of vapor traveling toward the ack end of the flue-chamber d. This veil vapor effectually separates the thicker and- :avier particles of the products of comistion passing through the chamber from .o fire-gases and deposits said particles in .e base of the chamber (1. The minute par- :les of liquid issuing from the sprayer-pipe will in passing into the smoke become :hly heated and will expand toward the tCk end of the chamber d, thus accelerating e passage of the products of combustion the stack, as well as cleansing the smoke an the heavy and thick impurities. As istrated in Fig. 1, two sprayer-pipes e are wided-one some distance beyond the inend of the chamberd and the other at said at end, but beyond the outlet from flue a. lesired, however, but one pipe e may be d, or more than two may be required, acding to circumstances; At the base of amber d is a pipe 9, conveying exhaustroin the engine or other source to the :r c'l. While not necessary, the iniion of this exhaust-steam will be desirable to prevent contraction or isat'ion of the smoke which might perake place if the liquid introduced ,h sprayers e were cold. In Fig. 2 the e of the sprayer-pipes e are each retbly carried at one end of a hook-shaped et e. The other end of this bracket e ilar, as at 6 to surround the pipe e we adjustable longitudinally along the A set-screw 6 serves to lock the 1d e to the pipe e. as explained, the operation of the as follows: A liquid, preferably wa- :ced through pipe e to one or more pipes e and issues from said pipes I2LPOI'lZ8d or atomized form. The din of the travel of this vapor is both up vn transversely across the chamber las longitudinally toward its stack 1e veil or veils of vapor in chamber iitate the heavy and thick particles moke, and the liquid collecting in the f the chamber (1 and carrying these es is drained off by pipe d into the i tankf .e pipe e may be supplied with liquid unressure from any suitable source. Howin large plants where great'quantities ,uid are to be supplied to the sprayers it be found necessary in order to operate device with economy to reutilize the spentfiiquid drained off from the chamber (1. This reutilization of the water or liquid E forms a feature of my r sent invention.

1k; clearly illustrated in Fig. 1, the vat or tank f is but one of a series of communicating vats f f f The vat f has a stand-pipe 72., forming an outlet for water or liquid at the bottom of tank or vat f into the next tank or vat f. This tank f has a similar stand-pipe h, forming an outlet for the liquid from the base of tank f to the tank f and a pipe 7L2, traversing the tank f 2 and terminating near its bottom, is the supply-pipe to a pump 2), which forces the liquid to the pipe e, which supplies the sprayers. The waste liquid flowing to the first tank f will rise in said tank with a thick scum h of the smoke impurities collecting on its surface and with the bottom of the tank filled by relatively pure liquid. This relatively pure liquid ascends the standpipe h and overflows into the tank f, in which it ascends with a scum 7L5 of impurities on its upper surface, and the still less impure water overflows through into the next tank f The purer portion of liquid in the base of tank f 2 is then pumped to the sprayers for reutilization in the chamber (1. Besides being more economical with regard to waste of liquid, this reutilization of the liquid insures the delivery to the sprayers e of a heated body of li uid, and the heated liquid when sprayed will vaporize more quickly and combine more completely with the gases of combustion than if the sprayed liquid were cold. A pi e m supplies fresh liquid to any one of t e three tanks f f, or f in series to compensate for the waste due to the evaporation of the liquid either in chamber (1 or in the tanks.

Having thus described the nature and objects of my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In an apparatus of the character described, -a flue leadin from a furnace, a chimney or stack and a ue-chamber connecting the flue directly with the stack, said fluechamber having inlet and outlet openings, respectively from the flue and to the stack, of an area in cross-section coequal with the cross-sectional area of said flue, in combination with a sprayer located within the fluechamber beyond the inlet from the flue and arranged to vaporize a liquid in a direction corresponding with the plane in which the smoke enters from the flue and traverses said flue-chamber.

2. In an apparatus of the character described, a flue leading from a furnace, a chimof the inlet and outlet ends of said chamber.

3. In an apparatus of the character described, a flue leading from the furnace, a chimney or stack, a horizontally-arranged chamber connecting the flue directly With said stack, a liquid-supply pipe entering the flue-chamber, a sprayer-pipe carried by the liquid-supply pipe and arranged to spray the liquid in front of the inlet from the flue into said flue-chamber and in a direction correspending with the plane in which the smoke enters and traverses said flue-chamber, in

combination with a means for drainin the flue-chamber of spent liquid collecting 151611-3- in, a series of settling-tanks for separating the drained liquid from its impurities and a means for forcing the purified spent liquid to the vaporizing means in said flue-chamber.

4. In an apparatus of the character described, a flue-chamber, a sprayer arranged to spray the products of combustion travers- BEST AVAILABLE CQpy of the next tank in series, a pipe arrai draw off the liquid from the last tanl ries and a pump arranged to force the from said pipe to the sprayer in th chamber.

In testimony whereof I have hereur my hand, this 28th day of January, 19 thepresence of two subscribing Witness WILLIAM GL1 Witnesses:

GEO. A. LANE, O. G. BASSLER.

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