US1708506A - Burner - Google Patents

Description

April 9, 1929; s. A. JACQUES BURNER Filed Nov. 4, 1925 aww/nto@ i .lllllllliJlA-lllll Patented Apr. 9, 1929,

. UNITED STATES 1,708,506 .PATENT OFFICE.

STANLEY A. JACQUES, OF` CHICAGO, ILLINOIS, ASSIGNCR T INTERNATIONAL COM- BUSTION ENGINEERING CORBORATION,A A CORPORATION OF DELAIVARE.

BURNER.

Application `1ed November 4, 1.9425. Serial No. 66,699.

, This invention relates to burners jand isparticularly useful in the burning'of 'pulverized coal although it can. also-be used to advantage inthe burning ofga's or any 5 other fuel .with which it is desired to Vsecure an intimatemixtur'e o ffuel and air at-the burner and itis the primary object of lmy invention to provide .av burner which will: accomplish this result.

Another-object of my invention 1s the.' provision of a burner wherein the fuel 1s divided into comparatively thin sheet-s and combustion air is supplied -between the sheets of fuel, thepart-s being so arranged that the two will become thoroughly mixed within a comparatively short distance of the burner.

A furtherobject of my invention ,is the provisionrof a burner of the characterl described composed of end sections and inter# mediate sections one or more of which may be secured between the end sections'to formv a sectional burner of any desired size.

These objects, together with such others as may appear hereinafter, or are incident to theinvention, I obtain by means of aconstruct-ion which I have illustrated in 'preferred form in the accompanying draw-- ings,y wherein I Figtl is a side elevation, partially in sectionef a burner assembly; l' Fig.2 is an end elevation of the burner shown in Fig. y1. The burner illustrated comprises the three 35 top sections 1 which are identical' in construction,thel end sections2, which are also.

identical, and the intermediate sections V3, which are likewiseidentical.

The top sections 1 are of somewhat fish- 40 tail shape viewed from Vthe side, as in Fig'l and flare slightly viewed from the end, as

in Fig. 2. -These top sections are ,provided at their upper edges with flanges 4 .to which a fuel vsupply pipe-lcan. be secured. The

lower edge- Q 'eaehof Athese top sections 1 is also provided with a flange 5 along eaehside thereof towhieh the lower sections 2 and 3 are secured-by means of the flanges 6 and the bolts 7 passing therethrough.

The intermediate sections 3 Aare composed of Arectangular side members 8 8 with the flanges 6 at their upper edges. Securedto these side members 8 and extending between them are the hollow dividing plates 9. These p'latesare elosedat their upper edge in the form of an inverted V as shown at 10 and are open along thebotto'm. Ports 11 through .thelside` walls '8-8-.open into the interior @of thehollow -plates 9, .for 'the purpose of supplying' airto the interior thereof and 'thefdefiectors 12 extend between. the side plates 8 8 just beneath the opening in the .bottom ofthe hollow plates 9 to deflect the air flowing through these plates.

' The end 'sections 2. are similar' to the sections 3 but eachis provided with an end wall 13 to form the end of aia-assembled burner, this end wall also forming .one side of one ofthe hollow plates. The endA sections are also provided with lugs 14, on opposite sides thereof through which rthe bolts 15 Lare passed and the intermediate sections are thus held securely in-positionwith the side -8 ofone section fitting snugly against the side 8 ofthe adjacent section.

.` Near the' upper part of the top member 1 and extending across the opening into which the fuel flows are the deflectors 16 which serve to dividethe fuel stream somewhat and .cause it to' fall more uniformly over each of the lower sections.

i It will be seen that in the assembled burner the hollow dividing plates 9 form slots 17 forthe passage of the fuel therebetween.

The operation of this burner is as followsrA mixture of coal and air from a feeder or mill enters the burner at the top. Here it meets'the deflectors- 16 which break up the stream to distribute it evenly Ithroughout the chambers. The coal and air mixture thus enters the slots 17. plied through the ports 11 enters the hollow plates and upon emerging from the bottom thereof is deflected into the path of the fuel and air falling therethrough. rIhe ports 11 are of a size to admit the proper amount of Air supadditional air needed at the burner and by v virtue of my improved construction this air is brought into intimate Contact with the thin sheets offfuel descending throughthe slots and the air so admitted becomes intimately mixed with the fuel a Ashort distance from the burner. v,

If desired1the ports 11 can be made suiiiciently large to supply enough air in addition to-that entering with the fuel to complete vcombustion. However, if desired, the ports'can be made smaller and further air'v counterpart members which I have shown.

What I claim is:

`1. A burner for pulverized fuel and the like including a sectional casing forming a fuel passage having a fuel rAeceiving opening and a fuel discharging opening, the receiving opening .being at the top of the burner,

hollow dividing plates each having an open I bottom and extending transversely ofthe said passage intermediate the ends thereof, said plates forming slots for the passage of fuel therebetween, means foradmitting air to tlie interior of said hollow plates and deflectors adjacent the open `bottoins ofthe hollow dividing plates 'whereby the fuel:

passing through the said burner is `mixed "with air-,flowing through thesaid plates within the burner.

QJA burner for pulverized vfuel and the likecomprising a pluralityof counterpart lishtail shaped'sections, each section having a fuel receiving opening anda fuel discharging opening, the fuel receivingopenings being at the top of the burner, a `sectional casing providing a fuel passage for the fuel discharging from the shtail shaped sections yand having meansl for securing it to tlie'lisli- 4tail shaped sections, said casing including end sections and a plurality of intermediate sections, the intermediate sections each havv'ing oppositely disposed side platesl and -a hollow dividing plate therebetween and the end sectionsv forming closures for the ends lof the burner, air inlets for vadmitting air to the interior of said hollow plates and air outlets for said hollow plates for discharg-V ing air into the fuel passingl through the burner.'

In testimony signed my name. l

STANLEY A. JACQUES.

whereof, I have hereunto yso

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