US951191A - Apparatus for utilizing the waste heat of kilns. - Google Patents

Description

- H. G. LAYNG. APPARATUS FOR UTILIZING THE WASTE HEAT 0P KILNS.

APPLIQATIQH FILED JUNE 4, 1908. 951,191. Patented Mar. 8, 1910;

2 SHEET8SHEET 1.

I witnesses Q H. G. LAYNG.

APPARATUS FOR UTILIZING THE WASTE HEAT 0]? KILNS.

APPLICATION FILED JUNE 4, 190a.

951,191 Patpntd Mar.8, 1910.

to generate the steam to make the down draft kiln.

HENRY e. LAYNG, or NEW YoRK,'1\T. Y.

PATENT OFFICE.

APPABATUS FOR UTILIZING THE WASTE HEAT OF KILNS.

Specification of Letters Patent.

Patented Mar. 8, 1910.

' Application filed June 4,1908. Serial No. 436,602. g

To all whom 'it may concern: I

Be it known that I, HENRY G. LAYNG, a citizen of the United States, and a resident of the borough of Manhattan, city,'county, and State of New York, have invented certain new and useful Improvements in Apparatus for Utilizing the Waste Heat of Kilns, of which the following is a- -specification, accompanied by drawings.

This invention relates toimprovements in apparatus for utilizing the waste heat of kilns, niore particularly to apparatus utilizing both k1ln burning and waste heat to make steam and thereafter dry brick or other clay products. I amnot to be understood as limiting the invention to these purposes, because it may be used in any connection in which it is found applicable.

Ordinarily in the art of making bricks or other clay products, the kiln heat, both burnin and waste, is not utilized outside of'the I itself, except occasionally for the purpose of drying the clay products.

The object of my invention is to utilize the heat of the kiln, both burning and waste, bricks and afterward to dry the same.

According to my invention, I can either use the products of combustion from the boiler for dryin the clay products, or I can use the pro nets of combustion of the kiln or I can use both together.

Further objects of my invention will hereinafte'r appear, and to these ends the invention consists of the system substantially 'as hereinafter fully described and claimed in this specification and shown, in the accompanying drawings, in which- Figure 1 1s a plan view partly in horizontal section of apparatus embodying the system; and Fig. 2 is a longitudinal sectlonal view on the lines can: and y, y of Fig 1.

Referring to the drawings, Are'presents a kiln, B represents the steam boiler in any suitable style,C is a fan of any suitable design to suck and impel hot gas, as for instance, a booster em, and D is a drier.

' The kiln A may beany kind of a kiln, as a down draft, up draft or continuous kiln, and I have shown by way 'of v example a -I provide means ucts .of combustion from the base or bases 1 hee ack Ei om ende f h flue Fjvhere they connect with the'stacks. "For this purpose I'haye shown .an outer flue G for conducting the prod- The boiler B maybe of any'style or type.

of a boiler, shown in this instance as a return tubular boiler having the shell M, the grate N, and the stack 0 provided with damper O. The flue P communicates with the stack 0 or fan 0, or leads directly to the fiues Q, if thefan is omitted.

According to my invention, the hot gases from the kiln are led beneath the boiler by flue R at a point back or on the sides of the grate bars, so that the heated gases from the kiln will not pass through or over the grate N to theexclusion of air or other gases for combustion on the grate. A suitable damper S is provided for controlling the flues L and S, whereby the kiln gases may be around the kiln, with which'the bases of conducted to the boiler or directly to the drier. According to this construction, the kiln gases may be utilized for first heating the boiler, or else they may be led past the boiler to the drier or the stack.

D is any suitable direct or waste heat drier, for utilizing either kiln heats, or boiler heats, or both; The gases are introduced back or beside the grate bars U in the drier, through the fines or chambers Q, or in a waste heat drier the gases would be led directly through the Ware in the drier. The grates U are to regenerate or add to the heat in the gases and obtain the air for combustion directly from the outside with the fuel on the grate bars. The dampers V control the outlets to the fiues Q and serve to regulate flow of the gases and thereby control the temperature of the. gases for the drier.

The fans W and the stack X are provided to suck'all gases from the kiln, the boiler,

and thedrier grates, and provide an accelerfurnishes the'heat ffor the drier. When the boiler fire is started, to get steam for the kiln is started, the damper S is opened as shown in Fig. 2, and the burning and waste gases from the kiln are drawn through the boiler and drier, by -means of fiues P and Q. In order toobtain the gases from the kiln, the stack dampers J are closed and dampers I opened. The arrangement of dampers throughout the apparatus 1s such that any.

desired part may be utilized, from one flue in the kiln to the whole apparatus. .The dampers and fires are also so arranged that the necessary heat may be obtained to make steam or to operate the drier, andthis can be regulated exactly as desired- When the kiln is starting up the heat is carried over to the boiler and helps out the boiler fire, and also the drier fires. When the kiln has been burned the heat in the hot bricks of the kiln is utilized in the same way, thereby cutting down the time of the kilns and utilizing all the heat. The boiler fire will also supply heat for the drier at all times.

I claim and desire to obtain by Letters I Patent the following:

. thereto having communication with the kiln and with the outlet of the boiler chamber, and means for directing the gases from the kiln through the boiler or directly to the drier at will.

2. A system of utilizing the waste heat of kilns, comprising in combination, a kiln having an exit passageway for the heated gases,

a boilerprovided with a firebox or furnace,

and having communication with said exit passageway of the kiln independently of said firebox or furnace, a drier provided with a heating passageway leading thereto having communication with the kiln and with the outlet of the boiler, means for directmg the gases from the kiln through the boiler or directly to the drier at will, and

means for drawing the heated gases through the drier.

3. Apparatus for utilizing the waste heat of kilns, comprising in combination, a kiln having an exit passa eway for the heated gases, a boiler provi ed with a firebox or furnace, and having communication withsaid exit passageway of the kiln independently of said firebox or furnace, a drier provided with a heating passageway leadin thereto having communication with the ki 11' and with the outlet of the boiler chamber, means for directing the ases from the kiln through the boiler or irectly to the drier at will, and means for drawing the heated gases through the boiler.

4. Apparatus for utilizing the waste heat of kilns, comprising 1n combination, a kiln having an exit passageway for the heated gases, a boiler provided with a firebox or "furnace, and having communication with said exit passageway of the kiln independently of said firebox or furnace, a drier rovided with a heating passageway lea ing thereto having communlcation with the kiln and with the outlet of the boiler chamber, means for directing the gases from the kiln throu the boiler or directly to the drier at wild, means for drawing the heated gases through the'boiler and means for drawing the heated gases through the drier.

5. Apparatus for utilizing the waste heat of kilns, comprising in combination, a kiln having an exit passageway for the heated gases, a boiler provided with a firebox or furnace, and having communication with said exit passageway of the kiln independently of said firebox or furnace, a drier provided with a heating passageway, leading thereto having communication with the kiln and with the outlet of the boiler chamber, means for directing the gases from the kiln through the boiler or directly to the drier at will, an auxiliary grate or firebox in the heating passageway leading to the drier, and means the boiler or kiln through said'passageway independently of said auxiliary grate or firebox.

6.. Apparatus for utilizing the waste heat of kilns, comprising in combination, a kiln having an exit passageway for the heated gases, a boiler provided with a firebox or furnace, and having communication with said exit passageway of the kiln independently of said firebox or furnace, a drier pro-' vided with a heating passageway leading thereto having communication with the kiln and with the outlet of the boiler, means for directing the gases from the kiln throu h the boiler or directly to the drier at W1 1, an auxiliary grate or firebox in the heating passageway leading to the drier, means for leading the heated gases from the boiler or kiln through said passageway independently of said auxiliary grate or firebox, and means for drawing the heated gases through the drier.

7 Apparatus for utilizing the waste heat of kilns, comprising in combination, a kiln having an exit passa eway for the heated gases, a boiler provi ed with a firebox or urnace, and having communication with said exit passageway of the kiln independently of said firebox or furnace, a drier ro vided with a heating passageway leading thereto having communication with the kiln and with the outlet of the boiler, means for directing the ases from the kiln throng-n 1 the boiler or irectly to the drier at w an auxiliary grate or firebox in the heating for leading the heated gases from passageway leading to thedrier, means for Intestimony whereof I have signed this leading the heated gases from the boiler or specification in the presence of two subkiln through said passageway independently scrlbing witnesses, June 1, 1908.

' of said auxiliary grate or firebox, means 'for HENRY G. LAYNG. 5 drawing the heated gases throu h-the boiler, Witnesses: v

and means for drawing the" eated gases 7 E. VAN ZANDT,

through the drier. E. LA GAY.

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