SU48151A1 - Adaptation to coke ovens to protect the distillation products from cracking - Google Patents

Description

The purpose of the invention is to reduce the cracking of coke oven gas in the subsurface space of the coke oven chamber due to the high temperature of the subsurface space.

The cause of the decomposition of the gas is too long a path and time of its stay in the hot space under the roof of the chamber.

There are various offers for eliminating cracking. Thus, for example, the German engineer Booth arranges a horizontal channel under the vault, according to Germs, the patent of Dr. Otto’s furnace vault is made inclined in order to create a variable cross-section of the subsurface space for more uniform distribution of gas and improvement of conditions for its transportation to the mill, prof. Korobchinsky proposes to arrange hanging armor made of chrome-nickel steel and gas irrigation using nozzles under the roof of the furnace.

In the proposed device, under the furnace roof, in order to more quickly remove gas from the subsurface space, there is a gas collecting channel, which communicates with the water supply space by a number of holes and is equipped with a cast iron duct and a number of nozzles for spraying water.

On the drawing fig. 1 depicts a longitudinal vertical section of a coke oven with the proposed device; FIG. 2 is the same vertical cross section and FIG. 3-perspective view of the cast iron box.

Above the furnace roof there is a gas collecting channel 1, a passage w, i, along the chamber above the arch, through the furnace charging ports. Throughout the arch, holes 2 are made across the entire length, connecting the subsurface space of the chamber with the gas channel, which has an increasing cross section in the direction of the gas outlet, i.e., to the stand 3 of the barrel.

Cast iron boxes 4 (Fig. 3) of square section (from heat-resistant cast iron) are laid in the horizontal gas channel; The box consists of a series of sections with openings 5 in the lower part coinciding with the openings in the roof of the furnace. When installed, the box is insulated from the pit of the kiln with asbestos cardboard.

A series of nozzles are installed in the gas channel, spraying water, and the water supplied through pipe 6 can be sprayed by creating a high pressure pump or injected with steam.

Water is supplied to cool the coke gas in order to stop cracking and preserve the gas quality.

The coke oven gas, as shown in the drawing by the arrows, tends to rise upward along the shortest path through the gas channel, where it is cooled, enters the well and normally in the usual way under the influence of gas dilution of the exhauster.

To clean the gas channel from the fluxes and the charge, which falls when the coke ovens are loaded, the manholes 7 are cleaned from the sides of the channel.

The subject matter of the invention.

1. Adaptation to coke ovens to protect products

Distillation from cracking, consisting of a gas collecting channel located along the chamber above the roof, characterized in that said channel, made as separate sections with openings in the lower part coinciding with the openings in the furnace roof, is provided inside with a cast iron duct and p house spray nozzles.

2. An appliance according to claim 1, characterized in that the gaseous channel is made in the form of a section increasing towards the drain,

3. The device according to paragraphs. 1 and 3, characterized in that for the cleaning of the gas collecting channel in the latter there are lasas in the sides.