US1733488A - Down-draft kiln - Google Patents

Description

Oct. 29, 1929.

M. JONES 1,733,488

DOWN DRAFT KILN Filed July 21, 1927 3 Sheets-Sheet l attoznc {SJ 6 Oct. 29, l 929.

JONES DOWN DRAFT KILN Filed July 21, 1927 3 Sheets-Sheet 2 I Oct. 29, 1929. JONES 1,733,488

DOWN DRAFT KILN Filed July 21, 1927 3 Sheets-Sheet 3 wuentoa Momma clam 7 1 i I attoznoq Patented Oct. 29, 1929 UNITED STATES MORTIMER JONES, or road: WORTH, "'rnxas DOWN-DRAFT Knit Application filed July 21,

By invention relates to kilns and more particularly to brick kilns and kilns for burning any kind of earthen products; and the objects are to provide means for proper distribution of the heat for complete dehydration in one continuous performance or operation. Another object is to provide means for applying the heat direct to the dome of the kiln and forcing the heat down through the wares,

eliminating the necessity of flash walls in the kilns. The advantage of this construction is that there is direct application of heat, eliminating the loss by radiation. In this construction there is no loss of heat because the heat is conserved by means of the dual fire chamber. With this construction, the heat may be transferred from one kiln to another.

Other objects and advantages will be fully explained in the following description and the invention will be more particularly pointed out in the claims.

Reference is had to the accompanying drawings which form a part of this application.

Fig. 1 is a perspective view of the kiln.

Fig. 2 is a vertical transverse section of the same.

Fig. 3 is a broken sectional view, showing tunnels and floor openings- Fig. 4 is a broken plan view of a kiln showing one unit with a crown opening.

Fig. 5 is a side elevation of a portion of a kiln, showing the openings to the fire tunnels.

Fig. 6 is a perspective of a broken kiln, illustrating the openings into the fire tunnels.

and also the floor openings.

Similar characters of reference are used to indicate the same parts throughout the several views.

The kiln has a wall 1 of known type which can be several hundred feet long. Any number of flues 2 may be equally distributed along the sides of the kiln for burning the wares after dehydration and the cooperating flues 3 lead into the tunnels 4 and 5 for distributing the heat throughout the kiln. The walls 1 are provided with re-inforcements 6 which are extended upwardly for deflecting the heat towards the dome. The re-inforcing 6 is spaced from the ports 7 so that the heat from 1927. Serial No. 207,507.

the fire boxes 2 will not be impeded. The flues2 are set at an angle sothat the heat will be directed upwardly @without hindrance. For Water-smoking and drying the heat is directed through the fines 3 and through the ports 8 into the tunnels 4 and 5 which are ordinary draft tunnels. While heat is being directed through the tunnels 4 and 5 by flues 3, the fiues 2 are closed by sliding valves 9. When the dehydration or drying is approximately complete, the valves 9 are opened so that the heat will go up the passages 18 and upwardly through the flues 2. The heat will go through the flues 2 for a period of time until the'kiln is heated through .and through. 05 Then close valves '9 and keep them closed until soaking "period 'begins. Then open valves 9 and close stack dampers. (The stacks 11 and dampers 10 therefor are of knowntypeand need not be described.) The'lO heat will be circulatedthrough tunnels 4 and 5, flues 8 and flues 2 during the soaking period. At the'endof the soaking period the heat will be. transferred to the adjacent kiln or to any other kiln by means of underground connecting tunnels. The undergroundtun- I nelsareof known type and not part of this invention. The usual ventilating dampers 10 are opened during the dehydration period.

Thedome 13 is of ordinary type and] the floor 0 leis also of ordinary type. The flues 2 and 3 are provided withantechambers 15in which gas or other burners maybe located. Ba fiies 16 are provided in the fire boxes to. direct the draft towardsthe tunnels 4; and 5 and for I preventing the draft from interfering with the dampers9. In the water smoking period the draft'goes through ports 8 into the tun- I nels and on through the ports 8 through the floor.14:. 9G The tunnels 4t and 5 form passage ways throughout the length of the kiln and by. means of the passages 8 and 8 tend to equal ize the heat drafts or to make the drafts uniform. r

What I claim is,' i y 1. A kiln for burning and curing earthen products comprising a structure provided with floor, walls, and dome of known type, and having underground tunnels, flues lead- .190

ing to said tunnels, said walls having a series of openings forming ports, a series of inclined divergingflues positioned above said underground flues and communicating with 5 said ports for directing the heat to the dome of the kiln and down through the wares, and means for directing heat from said underground flues to said inclined flues. 2. ,A kiln for burning and curing. brick and other earthern products having a floor, walls, 1 and dome of known type, and having under ground tunnels, flues communicating with said underground tunnels and said tunnels having draft passages to the interior of said kiln, inclined diverging flues connected with said kiln for directing heat towards the dome of the kiln and downwardly through the wares, an inclined flue being positioned above anunderground flue and means for directing heat from each underground flue to the inclined flue immediately above thereof. g 3. A kiln for burning and curing brick and other earthen products having a floor, walls, and dome of known type, and having under ground tunnels having communication with said dome, a series of "under-ground flues communicating with said tunnels, a series of diverging inclined flues communicating with said dome, there being an inclined flue above each underground fire box, partitions separating the underground flues from the inclined flues and provided with passages therethrough; and dampers for opening and closing said passages. 4. In a kiln for burning brick and other earthen products provided with a dome, walls, and floor underground tunnels communicating with the interior of said kiln through said floor, underground flues communicating with 40 said tunnels, inclined flues above said underground flues communicating with the interior of said kiln for directing heat towards the dome of the kiln, partitions between the underground flues and the inclined flues provided with passages therethrough, and means for directing heat: from I said underground flues to said inclined lines.

In testimony whereof, I set my hand, this 21st day of June, 1927;

' MORTIMER JONES.

Images