SU1638151A1 - Horizontal coke furnace - Google Patents

Abstract

The invention relates to coke production, in particular, to designs of large-capacity horizontal coke ovens, and can be applied in the coking industry. The purpose of the invention is to improve the quality of coke by increasing the uniformity of heating over the height of the coking chamber in high-volume furnaces. In order to increase the uniformity of heating over the height of the coking chamber in high-volume furnaces, the furnace in the upper part of the masonry is equipped with additional horizontal gas supply channels, located to the left and right of the vertical viewing channels at a distance of 0.7 to 1.0 distance between the arches of the heating channel and the coking chamber, and the vertical viewing channels are provided with additional channels located along the length of the pier in staggered order, and these channels are connected to the horiz ntalnymi conductive gas inlet channels 4 yl., 1 tab. with C

Description

The invention relates to coke production, in particular, to designs of large-capacity horizontal coke ovens, and can be applied in the coking industry.

The aim of the invention is to improve the quality of coke by increasing the uniformity of heating along the length and height of the coking chamber in large-volume furnaces.

FIG. 1 shows a horizontal coke oven, a transverse section; figure 2 - section aa in figure 1; on fig.Z - section bb in figure 2; figure 4 - section bb In figure 2.

Coke oven includes a coking chamber 1, heating piers 2 consisting of pairs

vertical heating channels 3 and 4 connected in the lower part with vertical channels 5 for the lower supply of heating gas from a common collector (not shown) with channels 6 for supplying air from regenerators 7

Vertical heating channels 3 and 4 are interconnected by pass windows 8. In the upper part, vertical heating channels 3 and 4 are connected to a vertical viewing channel 9.

In the laying of the furnace, to the right and to the left of the observation channels 9, at a distance from the arch of heating channels 3 and 4, equal to 0.7-1.0, the distance between the arches of the heating channels 3 and 4 and the coking chamber 1 is integrated with additional horizontal gas supply pipes. channels 10 connected to

About CJ 00

ate

common gas supply manifolds (not shown).

The inspection channels 9 are provided with additional channels 11, having adjustment devices 12 at their base, and connected by channels 11c with additional gas supply channels 10.

The adjusting device 12 is made, for example, in the form of a rotary cylinder with a through hole 13. Rotating the cylindrical device 12 at an appropriate angle provides a change in the flow area for the gas at the junction of the hole 13 with the hole in the channel 11. Than they regulate the flow of gas to the heating channels 3 and four,

The furnace works as follows.

The heated air from the regenerator 7 through the channels 6 for supplying air is supplied to the vertical heating channels 3 of the pier 2, and to the same channels through the lower vertical channels 5 the heating coke gas is fed in an amount of 20-40% of the total amount required for combustion. The flame that is formed during this process heats the zone of the furnace adjacent to the hearth chamber. From the channels 3, the air diluted with combustion products (GHG) through the pass windows 8 is fed into the adjacent heating channels 4.

In the same channels 4 above the common collector, through the additional horizontal gas supply channel 10, channels 11, adjusting devices 12. placed on the required gas supply, viewing channel 9 serves the rest of the gas (60-80% of the total amount required for burning). In the channel 4, a flame is formed, heating the furnace zone from the side opposite to the channels 5 for supplying gas and 6 air.

Thus, in all the heating channels 3 and 4 grouped in pairs, the heating gas is simultaneously burning, and the combustion zones extend from both opposite sides of the heating channels to the depth, resulting in the distribution of heat flow to the coking charge more evenly.

The location of the additional gas-producing channels 10 in the laying of the furnaces prevents their intensive clogging and, in addition, provides preliminary heating of the coke oven gas to an acceptable temperature level (600-700 ° C) with practically no pyrolysis, which ensures a stable supply of coke oven gas. gas along the pier.

The channels 11 for supplying gas from the horizontal gas supply channels 10 to the viewing channels 9 can be made inclined or horizontal.

Taking into account the hydraulic mode of the heating system and the supply of heating gas under pressure at the outlet of the channels 11 to the viewing channels 9, during operation of the furnaces, a vacuum of 0.5 mm water flow is always maintained, which ensures that gas flows into the heating channel without emissions through the viewing channel 9 the atmosphere. Temperature measurements are carried out through viewing channels 9.

Combustion products from the heating channels 4 through the channels 6 are fed to the regenerator 7, then to the flue and to the chimney (not shown).

After reversing, the direction of the gas flows is reversed.

The degrading of all gas supply channels is carried out in a known manner for all existing structures of horizontal coke ovens with a lower gas supply.

The test results are shown in the table.

Thus, the horizontal coke oven is efficient and does not require additional gas consumption only when the horizontal gas supply ducts are located at a distance from the set of verticals equal to 0.7-1.0 distances between the sets of verticals and the coking chamber. In this case, an increase in the uniformity of heating of the coking chamber in furnaces of large volume in height and an improvement in the quality of the produced coke is provided.

Claims (1)

Claims of the invention Horizontal coke oven including a coking chamber, heating piers consisting of grouped vertical heating channels, each of which is connected in the lower part to channels for supplying gas from a common gas supply channel-collector, air supply channels and regenerators, the upper part has vertical viewing channels, and with each other - saddle windows, which, in order to improve the quality of coke by increasing the heating uniformity, those coking chambers in large-volume furnaces, it is additionally equipped with horizontal gas supply channels built into the furnace masonry, located to the left and right of the vertical viewing channels at a distance from the arch of the heating channels equal to 0.7-1.0 distances between the arches of the heating channel and the coking chamber and connected to the common gas supply channels of the coke oven battery, and the vertical viewing channels are provided with additional channels at their base, and are connected by these channels to horizontal gas supply channels, with the additional channels of each adjacent pair of viewing channels located along the pier wall in a checkerboard pattern. The temperature of the gas in the horizontal gas supply channel ° С 0.6 0.7 1.0 1.1 You implied faults in vodo ° С Intense grading of channels due to pyrolysis gas inoperability devices Insufficient temperature heating coke oven gas which leads to an increase gas consumption for heating H Figz Combustion products cloth LooDook / Burning Dust to turning over