US1911488A

US1911488A - Furnace

Info

Publication number: US1911488A
Application number: US299083A
Authority: US
Inventors: Donald L Blatter
Original assignee: Erie City Iron Works
Current assignee: Erie City Iron Works
Priority date: 1928-08-11
Filing date: 1928-08-11
Publication date: 1933-05-30
Anticipated expiration: 1950-05-30

Description

3Q, 1933. D L BLATTER 1,911,488

FURNACE Filed Aug. 11, 1928 2 Sheets-Sheet 1 Z6 1 f INVENTOR.

it BY 72%;

2 41461 ATTORNEYS.

' May 30, 1933. D L BLATTER 1,9111488 FURNACE Filed Aug. 11, 1928 2 Sheets-Sheet 2 IN V EN TOR.

25 A TTORNEYS.

Patented May 30, 1933 UNITED 'TFS'TATESVIJ PATENT o FicE;

- noNALn L. BLATTEFR, or ERIE, PENNSYLVANIA, assreNon To Earn oITY IRoN woa'xs;

specification and claims.

on ERIE, PENNSYLVANIA, AooaroaAT oN or rEN sYLvaNI FURNACE H t Application filed August 11, 1928. Serial No.5399,083.

. Furnaces for burning fuel, particularly fine fuel, are usually provided with a means supplying fuel with primary air and 1n add1 tion to the primary air secondary airto complete combustion. In order that the combustion may be fully completed it is necessaryto commingle the air and fuel so that all the fuelmay properly burn with aslittle diluall-sectionsof these deflectors receive water. 1

tion byexcess air as possible.

In a former applicatiomfiled by mesept. 12, 1927, Serial Number 219,046,,1 disclosed a means of deflecting into numerous streams the incoming fuel and primary air, In the present invention I preferably utilize th s means of introduction of the fuel and primary air, supplementing the structure with air tuyeres with deflectors capable of deflecting the air causing crossing and intermingling of the various streams and creating turbulence and intimate contact between the fuel and the air so that there may be rapid and complete combustion. Features and details of the invention will appear from the.

A preferred embodiment of the invention isillustrated inthe accompanying drawings as follows v Fig. 1 shows a section of a furnace onthe line 1 1in Fig. 2, showing in elevatlon the fuel and airdelivering devices. V

Fig. 2a sectional view on the line 22 in Fig. 1, showing the front wall n elevation.

Fig. 3 a section of one of the deflectorplates on the line, 33 in Fig. 2.

Fig. 4 a section ontheline 4-4 in .Fig. Fig. 4a an enlarged plan view of an air controlling vane. Fig. 5 a side elevation of a tuyere and deflector plate. i m g Fig. 6 aplan View of the upper set of secondary air tuyeres.

Fig. 7 a similar View of the bottom tuyere.

Fig. 8 a side elevation of the bottom tuyere.

:1marks the furnace chamber and 2 the front .wall of the chamber. This is provided with a fuel and air opening 3. A nozzle 4 is arranged in the opening. A connection 5 extends .fromthe nozzle to a .conduit 6. The conduit .6 extends to the discharge of a pulverizer7. Deflector-s78 are arranged-atthe discharge of the nozzle4 and preferably project therefrom.--They are carried on hollow,- hingesifia" and supplied with water through; pipe 9,- vthis pipe/delivering water to one group of the plates and the other section being connected with-the'firstsection' by a U bend 10 to which the water passes so that The water discharges through the pipe 11..

Secondary air tuyeres; 12 and 13;extend.

that may bedesired. Deflector plates 17 are mounted-at the outlet of the tuyere 12 pref erablyprojecting inwardly therefrom. They are water-cooled receiving; their water from a pipe 18. Thelower tuyere- 13 is supplied with similar deflectors 19 receiving water froma pipe 20. 7 V i All thedefiector plates are hollow having outer walls21 and a centralwall 22, the;wall 22 forming a U-shaped passagei23hthrough the deflector plate. ,Nipple openings 24 are suppliedat the hinge ends of the'plates and nipples 24a connect the diflerentplateslso; that there. isa continuous passage of water through these, plates. These nipples with their pipe connections make it possible to adjust the deflectors as a whole,aor the individ-[ ual deflector may be adjusted. Ordinarily the deflectors 8 are alternated up and down. YVhile the deflectors of the secondary air tuyere are more or less in line so as to cross the streams of fuel and primary air the in clination of the deflectors for the secondary air maybe varied to better adjust them to the air streams. Arranged within the tuyeres are vanesi25 these are U shaped', the loop extending around and being secured by bolts 26. Spreaders 27 are arranged: between the arms of the vanes 25 and these spreaders are carried by pins 28 to which levers 29 are at: tached. Byithrowing the levers the arms of vanes 25 may be .separated, or closed,th11s varyingzthe amount and velocity of air. de-. livered The vanes 25 it-willbenoted cut ter to have the vanes so arranged and the deflectors adjusted so that the streams of secondary air and primary air are staggered relatively to each other. The sectionalarrangement and adj ustability of the deflectors make it possible to so relate the different streams as to get the greatest turbulence and intermingling of the elements of combustionv What I claim asnew is 1. Ina furnace, the combination of a furnace chamber; means supplying fine fuel withprimary air tothe furnace; and secondary air delivering mechanism comprising a secondary air tuyere at each sideof said means, and deflectors at the outlets of said tuyeres deflecting the secondary airinto commingling relation with the primary air stream from said means.

2. In a furnace, the combination of a furnace chamber; means supplying fine fuel with primary air to the furnace; and secondary air delivering mechanism comprising a secondary air tuyere at each side of said means, and deflectors at the outlets of said tuyeres deflecting the secondary air into commingling relation with. the primary air stream from said means, said deflectors being adjustable.

3 In afu-rnace, the combination of a furnace chamber; means supplying fine fuel with primary" air-to the furnace; and secondary air delivering mechanism comprising a secondary air tuyere at each side of said means, and a plurality of deflectors at the outlets of said tuyeres deflecting the secondary airinto commingli-ng relation with the primary air stream from said means, said means and tuyeres being elongated crosswise and in the same directionand said deflectors extending along each tuyere. Y

4. In a furnace, the combination of a furnacechamb'er; means supplying fine fuel with primary air to the furnace; and secondary air delivering mechanism comprising a secondary air tuyere at each side of said means. and deflectors at the outlets of said tuyeres deflecting the secondary air into commingl-ing relation with the primary air stream from said means, said means and tuyeres being elongated crosswise and in the same direction and the deflectors extending along't he tuyeres and being sectional and adjustable.

5. In a furnace, the combination of a furnace chamber; means supplying fine fuel with primary air to the furnace, said means comprising a nozzle elongated crosswise and a plurality of deflectors 'at the outlet of the nozzle; and secondary air delivering mechanismcomprising a tuyere elongated crosswise and in. the same direction as the nozzle and a plurality of deflectors at the outlet of the tuyere the deflectors on the nozzle and tuyere deflecting the fine fuel and primary air and secondary air into commingling relation.

6. In a furnace, the combination of a furnacechamber means supplying fine fuel with primary air to the furnace, said means comprising a nozzle elongated crosswise-and a plurality of deflectors at the outlet of the nozzle; and secondary air delivering mechanism comprising a tuyere elongated crosswise and in the same direction as the nozzle and a plurality of deflectors at the outlet of the tuyere, said deflectors being individually adj ustable to adapt the deflectors-to adjustment tostagger the air streams into commingling relation.

.8. In a furnace, the combination of afurnace chamber; means supplyingfine fuel with primary air to the furnace comprising a nozzle elongated crosswise and oppositely inclined deflectors at the outlet of the nozzle; and secondary air delivering mechanism comprising tuyeres at opposite sides of the nozzle and deflectors on the tuyeres adapted to deflect the secondary air stream into intermingling relation with the streams of primary air and fuel.

9. In a furnace, the'combination of a furnace chamber; means supplying fine fuel with primary air to the chambercomprising a noz-' zle elongated crosswise, and staggered and oppositely inclined deflectors at the outlet of the nozzle; and mechanism delivering secondary air to the chamber comprising tuyeres elongated crosswise and in the same direction as the nozzle at opposite sides of the nozzle having deflectors at their outlet adapted to deflect the secondary air stream into commingl'ing relation with the primary air and fuel streams.

1 0. In a furnace, the combination ofa furnace chamber; means supplying fine fuel with primary air to" the chambercomprisin'ga n'oza 'zle elongated crosswise, and staggered and oppositely inclined deflectors at the outlet of the nozzle; and mechanism delivering sec ondary air to the chamber comprising tuyeres elongated crosswise and in the same direction as the nozzle at opposite sides of the nozzle each having deflectors at their outlet, said deflectors being individually adjustable and adapted to deflect the secondary air stream' into commingling relation with the primary air streams.

' 11. In a furnace, the combination of a furnace chamber; means supplying fine fuel with primary air to the chamber; and secondary air delivering mechanism comprising a secondary air tuyere elongated in cross section, a plurality ofdeflectors at the outlet of the tuyre, and vanes in the tuyere varying the flow from the tuyere with relation to different deflectors and the means.

12. In a furnace, the combination of a furnace chamber; means supplying fine fuel with primary air to the chamber; and secondary, air delivering mechanism comprising a secondary air tuyre elongated in cross section, a plurality of deflectors at the outlet of the tuyere, and vanes in the tuyere varying the delivery from the tuyere with relation to different deflectors to divide the air into streams and into commingling relation withthe fine fuel and primary air.

13. In a furnace, the combination of a fur- -nace chamber; means supplying fine fuel with primary air to the chamber; and secondary air delivering mechanism comprising a secondary air tuyere elongated in cross section, a plurality of deflectors at the outlet of the tuyere, and vanes in the tuyre varying the delivery from the tuyere with relation to the deflectors and adapted to divide the air into streams corresponding to alternate deflectors.

14. In a furnace, the combination of a furnace chamber; means delivering primary air and fuel to the chamber comprising a nozzle elongated crosswise and oppositely inclined deflectors arranged in staggered relation at the outlet of the nozzle; and mechanism delivering secondary air to the chamber comprising tuyres elongated crosswise and in the direction of the nozzle, said tuyeres being arranged at opposite sides of the'nozzle, a plurality of deflectors at the outlet of each tuyere, and vanes in the tuyeres directing the air to alternate deflectors on the tuyeres, said deflectors on the nozzle and tuyeres being adapted to deflect the streams from the nozzle and-tuyeres into intermingling relation.

In testimony whereof I have hereunto set my hand. 7

DONALD L. BLATTER.