DE14948C - Innovations in ovens and the process for firing porous and full bricks - Google Patents

Description

IMPERIAL

PATENT OFFICE.

The invention consists in a combustion process and furnaces used for this purpose, by means of which mixed with fuel, porous burning bricks due to the fuel contained in them itself, to be burned. It can also use inferior fuels such. B. with sand offset brown coal, as an additive to the clay, can be bricked up.

I. The furnace.

The accompanying drawing shows in

Fig. Ι a longitudinal view of the furnace,

Fig. 2 is a horizontal section of the same in the vicinity of the sole,.

Fig. 3 is an end view and

Fig. 4 shows a cross section through the furnace.

Fig. 5 shows the ember channels abc with their slides,

6 shows the draw duct with the smoke ducts formed by translating a cap g.

Figures 7 and 8 show the closures of the puffs and smoke holes.

In the middle wall at the end of the stove which is furthest from the chimney, on the bottom, three ember channels α h and c, each about 25 cm in diameter, which are provided with sliders, so that any circulation through them the gases in both ovens is made possible.

In the outer surrounding walls there are air holes dd with a diameter of approx. 8 cm, also on the bottom of the ovens, each approx. 85 cm apart.

On the central wall lies the draft channel e, which is divided by a tongue / located in the middle of it, so that the smoke from each stove is drawn off by itself. The parts of the draft duct are to be connected individually to the chimney by pulling the slide e ^1.

There are smoke holes r in the furnace roof and draw holes s in the draft duct, both of which are connected by a cap g when smoking.

Each oven has an entrance door at h ; the chimney k is between the two entrance doors so that, in the event that the stove cannot be loaded in time, e.g. B. in the absence of air-dry stones, at the other end of the furnace a smoke can begin, even before the same has been fully completed.

The air holes d on the stove serve to supply the fire with the necessary oxygen when it is blown away.

The smoke holes r serve to transfer the smoke into the duct.

The ember holes abc are used to ignite the ovens.

II. The method of firing.

The furnace is loaded with porous and solid stones in such a proportion that the fuel, which the porous bricks added or received during manufacture is sufficient, also to burn the full bricks used with it.

In this way fifteen layers of stones are placed in the oven, namely five layers first

Claims (2)

porous, then three layers of full and again seven layers of porous stones. If the stove is not vaulted, it is covered with slabs and sand. The top layer of the stones is then added to the draw hole as a runner. During the first fire, the stove is made to smoke by a small fire in the ember channels abc, whereupon smoke of a light color sets in. The caps g are placed on the smoke hole so that they serve as smoke conductors from the stove into the smoke channel that leads into the chimney. The caps g are only used as long as the hole in question, over which they are standing, smokes, but not if the burning continues, because only the smoldering and not the actual burning of the stones causes the heavy smoke that annoys the neighborhood. If, after some time, blue smoke emerges from the smoke holes, the time has come when all openings in the relevant places of the stove, such as air holes, smoke holes and ember ducts, are closed. The breathing off of the stones then gradually goes to the other end; it takes four days, after which the holes in question are also closed. In this closed state, the oven will stand still for 72 hours. During the 72 hour period during which the fire is dampened, every smoke hole r is to be covered with a clay plate r1 after the caps have been removed, and every draft hole ί is to be closed by means of a hanging iron door ί1. In order to achieve the most airtight closure possible, an iron bolt held in place by two hook nails is put in place. Then the smoke holes r are opened again by pushing away the panels r1, while the doors i1 remain closed; red heat sets in after six to eight days. If the red embers have entered, the smoke holes r are closed again. Only now does the real process of burning the stones begin. Slowly burning away causes the stove to glow with white. About 13 days elapse, during which time the other oven is full, like the former. As soon as the stove is cooling down at the point where the three ember channels abc are, but still has white embers, the ember channel slides are pulled and only closed by lowering the slider as soon as the other furnace has ignited; as a sign of this is the rather strong white smoke that is emanating from it. They remain closed until the first stove has been refilled and ignited. The rest of the procedure with the second furnace is exactly the same as described for the first furnace, and the firing can be continued without any new firing as long as there are stones to be fired. P ATEN τ claims: 1. The construction of a furnace for burning porous bricks at the same time as full bricks, of which the porous burning bricks enclose the necessary fuel, consisting in two long ovens standing next to each other with the air holes d, the ember channels α b and c, the draft channels e and the smoke ducts formed by caps g. 2. A burning process in which the smoke holes r of the stove are opened during the six to eight days during which the fire is increased to red embers, in which then, as soon as the red embers have entered, each smoke hole r is pushed open again Thonplatte is closed, so that the stove comes into white embers, and finally, as soon as the stove is in the process of cooling at the point where the three ember channels abc are, but still has white embers, the ember channel slides are pulled so that the one furnace is blown off and ignited by means of hot air sucked in by the other. For this purpose I sheet drawings.