DE31590A - Connection of coke ovens vertical axis with air heaters - Google Patents

Description

IMPERIAL

PATENT OFFICE ..

CLASS 10: Fuels.

The purpose of the present invention is to make the coke ovens operate in a vertical axis also with the extraction of by-products.

This purpose is achieved by heating the combustion air by using the coke ovens connects with air heaters.

These can be one-room or two-room.

In the case of the use of single-room air heaters, the combustion products must be used of the coke ovens there must be at least two paths or main flues through which they can reach the chimney from the vicinity of the coking rooms be able.

As shown on sheet I, these main exhaust ducts can themselves be used as single-room air heaters or it can, as on sheet II, single-room air heaters with the main exhaust ducts just be connected.

On sheet I in FIGS. 1 to 4 is a connection of coke ovens with a vertical axis drawn with those one-room air heaters which, according to Siemens, are called "regenerators" names.

In the case shown, the single-room air heaters R and R ^{1 are arranged} in that part of the main waste heat duct which lies in the masonry surrounding the coking chambers V.

These one-room air heaters (so-called regenerators) R and R ¹ can, however, also be arranged in the parts of the main waste heat duct which are between the groups and the chimney, e.g. B. in the vertical part of the main waste heat duct, Fig. 2; this vertical part can also be arranged outside the group, as dotted in a ^1.

Fig. Ι shows a vertical section through a group of coke ovens with a vertical axis. V denote two of the coking rooms in this group, R and i? ¹ the air heater, Ga the gas exhaust ducts at the top of the coking chambers V, GA the gas discharge lines that lead to the condensation, GR and GR ¹ the gas return lines from which the gases are alternately directed through the gas inlets g and g ¹ into the vicinity of the coking chambers V. . The air enters through the interchangeable flap indicated in FIG. 4 and arrives, depending on. Position of the same, through the air heater R or R ¹ and the air inlets / or I ¹ in the vicinity of the coking chambers V,

The position of the interchangeable flap for the air and the relevant device for the gas are selected so that gas and air reach the vicinity of the coking chambers V simultaneously, either through g and / or through g ¹ and V.

Fig. 2 shows a longitudinal section through the single-room air heaters R and J? ¹ , in the middle of which the inlet openings for the cold air and at the upper and lower ends of which the outlet openings / and V of the hot air are arranged.

On sheet II in FIGS. 5 to 8 a connection of coke ovens with a vertical axis other single-room air heaters (Whitwell).

The same letters are chosen for the individual parts of the arrangement as on Sheet I, so that the drawing is understandable after the description above.

On the waste heat ducts a and a ¹ leading from the coke oven group to the chimney S , Whitwell air heaters W and W ¹ are arranged in such a way that the waste heat is forced to pass through one of these heaters, in the case shown by W ¹ .

The air enters through the interchangeable flap indicated in FIG. 8 and, depending on its position, passes through one of the air heaters W or W ¹ , in the case shown by W, and the air inlet openings Z or / ¹ in the vicinity of the coking chamber V. .

The air inlet openings / or Z ¹ serve as waste heat outlet openings after the changeover. One can arrange them ο through which its cross section is so reduced in relation to vergröfsert or openings, that the train for all the coking chambers is equal to V as possible.

You can also, as in the drawing, instead of the only existing waste heat channels, respectively, larger waste heat. Arrange air spaces L and L ¹ from which once the waste heat to α or a ¹ and the other time the air from a ^l or α reaches the vicinity of the coking chambers V.
• The air heaters W and W ¹ can be used for several groups of coke ovens; in this case, the main waste heat or air supply ducts below are to be communicated for the groups concerned, i.e. to be connected between them.

The operation of the coke ovens associated with such one-room air heaters, sheets I and II with a vertical axis is to be guided in accordance with the device described, that the products of combustion alternate through the single space of the heater the coke ovens on their way from these to the chimney and the other time the air blows up their way to the places of combustion in the vicinity of the coke ovens, so that alternate heating and cooling of the single-room heater.

This alternation can be achieved by, according to Siemens, the direction of pull reversed, or by maintaining the same pulling direction, according to Putsch (Patent No. 1034).

In the case of the use of two-room air heaters, one path is already sufficient for the combustion products, on which they can get from the vicinity of the coking rooms V to the chimney.

On sheet III are the two-room air heaters between the oven group and the placed outside the chimney.

In the arrangement shown, the air heaters specified by Lürmann (patent No. 12331) was chosen.

The waste heat comes from the surroundings U of the furnace through the shafts α and the channel ά ¹ , Fig. 11, into the air heater Li? and through channel d ² into chimney S.

The air to be heated passes through the duct (s) Z ¹ , from these into the vertical shafts I ² and collects in the ducts Z ³ , through which it is directed into the air distribution spaces L. From this it passes through the openings Z ⁴ into the environment U of the coking chambers V.

Opposite the air inlet ^{openings Z 4} , openings 0 can be arranged to regulate the air inlet.

The air distribution spaces L can be omitted and. the hot air from the ducts I ^s through special ducts? z. B. lying parallel to the gas lines GR , lead to the ovens, and allow hot air to enter everywhere next to, above or below the gases.

In this simplest case there is no essential change in the vicinity of the furnace and only the gas and air inlets have to be drilled.

An air heater LE can also be used for several groups of coke ovens.

In this case, similar arrangements are to be made for the waste heat ducts as above for Sheet II described.

The operation of the coke ovens connected to such two-room air heaters with vertical Axis is, according to the arrangement of the former, without reversing the movement and just how described, to lead in such a way that the waste heat is always passed through one of the rooms of the air heater and always brush the air to be heated through the other.

The arrangements of coke ovens drawn on sheets I to III with a vertical axis with air heaters, according to local needs and conditions, as described below.

The routes of the combustion products from the coke ovens to the chimney can be in front of, next to or above the coke ovens or in several of these places, and in, next to or above them, as indicated in the examples shown, single-space or two-room fan heaters.

About the speed, and therefore also the amount of water flowing through the heater Waste heat or air can be reduced or increased on the same train or Let the pressure take effect.

Claims (3)

For this purpose one can use chimneys, fans, roots blowers, exhaustors, blower machines or similar facilities, each for itself or each or apply several in conjunction with one or more. The devices for reducing or increasing the speed, the train, the pressure, i.e. the amount of air, can move between the coke ovens and the heaters or between these and the chimney, or in several places will. About the speed, i.e. the amount of water flowing through the heater To measure air or waste heat according to the needs, flaps, valves or -The same facilities are switched on in the lines or channels. The turn of the train can, where it has to be used, through you see or other flaps, caused and can be effected by valves, bells, slide valves or similar devices the same are moved by hand or by mechanical devices. The gas coming from the condensation or, if necessary, from the generators and the Combustion air brought to a high temperature in the heaters can enter the flues, Channels or shafts, which form the environment of the coke ovens, on one or more Place, together or individually, limited in their quantity by some device at the individual places, introduced and to be burned. Patent claims: ι. The connection of coke ovens vertical axis with air heaters RR ¹ , which are arranged in the surrounding walls of the coke oven and through which air and combustion gases pass alternately, shown in FIGS. 2. The air distribution chambers LL ^{1 shown} in Fig. 5 to 8, arranged to the side of the coking chambers of coke ovens vertical axis, which alternately bezw the air heated in one-room air heaters lying outside the coke oven. absorb the combustion gases and from which the air through openings I respectively. I ^{1 occurs} in the vicinity of the coking chambers, while the combustion gases take the opposite route. 3. The air distribution chambers L, which are drawn to the side of the coking chambers of coke ovens and arranged on a vertical axis in FIGS. 9 to 13, which absorb the air heated in two-room air heaters located outside the coke oven and from which the air passes through openings I * into the vicinity of the coking chambers , while the combustion gases are constantly fed through shafts α and channel a ¹ into the air heater. For this purpose 3 sheets of drawings.