US581448A - Smoke-washer - Google Patents

Description

UNITED STATES XVILLIAM J. WHITE, OF CLEVELAND, OHIO.

SMOKE-WASHER.

SPECIFICATION forming part of Letters Patent No. 581 ,448, dated April 27, 1897.

Application filed January 9, 1896- $erial No. 574,816. (No model.)

To all whom it may concern:

Be it known that I, WILLIAM J. WHITE, a citizen of the United States, residing at Cleveland, in the county of Ouyahoga and State of Ohio, have invented certain new and useful Improvements in Smoke-Washers; and I do hereby declare that the following is a full, clear, and exact description of the invention, which will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to smoke absorbers and condensers; and the object of the invention is to provide means whereby the products of combustion passing olf from -a furnace or other large heater may be intercepted at some point in their passage and forced through either a body of water or a heavy spray, as

conditions might require, and thus eliminate from the said products of the furnace all offensive and injurious elements and reduce the otherwise dark and obnoxious volumes of smoke to nothing more than a blue vapor or gas, which would be almost unnoticeable in appearance and absolutely unobjectionable in character. In this operation the smoke is effectually cleansed of its black or dense properties and Washed, and everything is absorbed, condensed, or deposited that a baptism of Water can reach in the products of combustion from coal fuelsor other heavy fuels.

In the accompanying drawings the figure is a vertical central sectional elevation of a boiler,-furnace, smoke-stack, a smoke-washing tank or reservoir, and a blower, all as hereinafter more fully described.

A represents an ordinary boiler-furnace and boiler, and B any well known smokestack, with a flue C from the boiler to the stack.

D is a water tank or reservoir into which the products of combustion from the furnace are forced by means of a blower E and connecting-tube F between the chimney and the reservoir D. The said tube opens into the chimney at one end and discharges into the tank or reservoir D at the other end. This tank is designed to be of a size corresponding to the service to be rendered, according to the capacity of the furnace and the volume of the products of combustion passing through the same, and is designed to be filled with waters the tank, substantially as shown, so that its bend will be above the water-level where it enters the tank, while its lower extremity comes in this instance near the bottom of the tank, and holes or openings t are formed in the tube at intervals, through which the products of combustion are forced into the tank. These holes or openings may be at the sides, top, or bottom, but preferably at the sides, so as not to disturb deposits in the tank, and of any form or fashion that may be preferred. Then, as a further means of cleansing the smoke and divesting it of any offensive elements, I employ a spraying pipe or pipes 5 or their equivalent, arranged near the top of the tank D and inposition especially to condense the steam in the tank. The water to supply the tankD is provided through this spray, and the volume of water is of course controlled by a suitable valve, the amount admitted being dependent upon the amount evaporated and carried off with the smoke.

The blower E is of such size and capacity as will easily handle the products of combustion from the furnace and stimulate the draft as much as may be desired, while at the same time it forces the products of combustion forward through the pipe F and the water in the tank D. A discharge pipe or flue H is shown here as connected with the top of tank D and entering the smoke-stack B above the valve 2, so that whatever gases or vapor there may be which are not absorbed or taken up by the water in the tank pass off together through the smoke-stack.

The carbon deposits in this apparatus are a valuable by-product and they are saved by evaporating the moisture from the tank and then removing the deposits in a dry or practically dry condition. To. accomplish this purpose I employ a live-steam pipe 8, which enters the washing-tank D and extends about the bottom of the same in a coil or some other suflicient way to evaporate the moisture from the contents of the tank when the water has been turned off and drawn ofi. This is done, of course, when the works are shut down.

What I claim as new, and desire to secure by Letters Patent, is

1. In smoke absorbers and condensers, a Water -tank to cleanse and wash smoke, a smoke-flue entering said tank and having an elbow above the water-level therein and its lower endextending across the bottom of the tank and provided with openings to pass the smoke, a blower in said flue outside of said elbow and tank to force the smoke forward into said tank, a draft-outlet from the top of said tank and a water-spray across the entrance to said outlet, substantially as described. H

2. A furnace-chimney and a smoke-absorbing tank constructed to be filled with water to absorb the offensive elements of the smoke,

a stationary flue from said chimney to said tank having one end projected horizontally across the bottom of the tank and provided with a series of holes to pass the smoke into the tank, a blower in said flue to blow the smoke into the water in the tank and a water-spraying device across the mouth of outlet from said tank, substantially as described.

3. A smoke-washing tank having a draftoutlet at its top and a smoke-delivering flue extending across the bottom of the tank provided with a series of holes, in combination with a fresh-water spraying and condensing mechanism across the outlet at the top of the tank and within the same, and a live-steam coil in the bottom of said tank, substantially as described.

Witness my hand to the foregoing specification this 16th day of December, 1895.

WILLIAM J. WHITE. W'itnesses:

H. T. FISHER, H. E. MUDRA.

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