SU46522A1 - Combined Regenerative Coke Furnace - Google Patents

Description

The present invention relates to combined regenerative coke ovens that can be heated by both rich and poor blast furnace gas.

In the proposed drawing of FIG. 1 shows a vertical cross section along AB; FIG. 2-longitudinal section through the pier and regenerators on CD, EF; FIG. 3 - typical horizontal sections of the furnace in 1- /, 2-2, etc.

When the furnace is heated with poor gas, gas and air are supplied from both sides of the furnace, the combustion products are also removed from both sides of the furnace or from one side; this changes the relative position of the bottom channels and regenerators so that the regenerators for air or gas alternate along the length of the furnace (one through one) with the regenerators for the combustion products.

The heating scheme of the proposed blast furnace is as follows: gas or air is supplied to the channels /, from which, the grate grid passes, enters the regenerator P. From the regenerator, part of the air or gas, passes through the sub-floor space, enters the oblique halls, and some goes to hearth dripping And, from which comes in

oblique moves of another quarter of the stove. From oblique passages, gas and air enter vertical lines III. Simultaneously, the burning occurs along the entire length of the pier in even or odd verticals.

The products of combustion enter the vertical. IV; at the same time, a part of them enters in-slanting moves, and a part passes into the adjacent vertical (as shown in Fig. 2 by arrows).

Through slanting passages in one part of the furnace, the combustion products flow directly into the regenerator V, from where they, the grate and canal VI, are sent to the forest.

When the furnaces run out of operation (hours) in the indicated direction, the valves are recalculated at the regenerators and the gas flows are reversed: gas and air travel along the path that the products of combustion previously passed, and the products of combustion pass through previously passed the air and gas.

When heating furnaces with gas-rich air and gas regenerators, only air flows, and rich gas is fed alternately to the corneurs, from which it, after passing through the burners, enters even or odd verticals.

The path of movement of air and products of the furnace corresponds to the path of movement of gas, air and products of burning, and heating of furnaces with poor gas.

The subject matter of the invention.

1. A combined regenerative coke oven, characterized in that the heating wall is made up of four groups, mutually serving vertical channels III -IV, associated with a corresponding number of air or gas regenerators PI-VV VV for combination ovens equipped with bypass channels 11 -L1 and VV for direct gas and air supply and removal of combustion products from the entire pier wall system.

2. The form of the coke oven according to p. 1, characterized in that for the circulating heating of the pier wall, the dividing wall of the unpaired channels is provided in the lower part with an opening VI.

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