CN-121991708-A - Cooling channel of heat recovery coke oven

Abstract

The invention relates to the technical field of coke ovens, in particular to a heat recovery coke oven cooling channel which comprises cooling channels which are arranged along the long direction of the coke side of a coke oven machine and are completely communicated, wherein the cooling channels are arranged at intervals, the heat recovery coke oven cooling channel also comprises a plurality of transverse connecting channels which are vertical to the cooling channels and are intersected, two ends of each transverse connecting channel are respectively connected with a vertical channel of a resistance wall area, and the vertical channels extend upwards to a furnace top chimney. The invention can fully utilize the chimney effect of the vertical channel at the resisting wall to attract the air entering the cooling channel from the coke side furnace head to flow quickly, thereby increasing the cooling effect.

Inventors

• GENG NING
• QU LEI
• ZHAO DIANHUI
• WU MINGHUA
• HAN LONG
• YANG JUNFENG

Assignees

• 中冶焦耐(大连)工程技术有限公司

Dates

Publication Date

20260508

Application Date

20260226

Claims (6)

1. 1. The heat recovery coke oven cooling channel is characterized by comprising cooling channels which are arranged along the long direction of the coke side of the coke oven machine and are completely penetrated, wherein the cooling channels are arranged at intervals, the heat recovery coke oven cooling channel further comprises a plurality of transverse connecting channels which are perpendicular to the cooling channels and are intersected, two ends of each transverse connecting channel are respectively connected with a vertical channel of a resistance wall area, and the vertical channels extend upwards to a furnace top chimney.
2. 2. The cooling channel of a heat recovery coke oven of claim 1, wherein the cooling channel is multi-layered, each layer being separated by refractory bricks, and each layer being provided with a plurality of transverse cross-channels perpendicular to and intersecting the cooling channel.
3. 3. A heat recovery coke oven cooling tunnel according to claim 1 wherein the cross-sectional shape of the cooling tunnel is rectangular or portal.
4. 4. A heat recovery coke oven cooling tunnel according to claim 1 wherein the vertical tunnel is disposed inside or outside a resistant wall.
5. 5. A heat recovery coke oven cooling tunnel according to claim 1, wherein an induced draft fan is provided on the roof chimney.
6. 6. A heat recovery coke oven cooling tunnel according to claim 1, wherein the heat recovery coke oven cooling tunnel is adapted for use in a vertical heat recovery coke oven or a horizontal heat recovery coke oven.

Description

Cooling channel of heat recovery coke oven Technical Field The invention relates to the technical field of coke ovens, in particular to a heat recovery coke oven cooling channel. Background At present, heat recovery coke ovens are largely classified into horizontal heat recovery coke ovens and vertical heat recovery coke ovens. The coking of the horizontal heat recovery coke oven adopts a heating mode combining direct heating and indirect heating, namely the upper part of the coal material in the coking chamber adopts direct heating, the lower part of the coal material is indirectly heated, and finally the coal material is refined into coke. The vertical heat recovery coke oven adopts an indirect heating mode, raw gas is burnt in a vertical flame path to generate heat, and the heat is firstly transferred to a silicon brick wall and then transferred to a coal cake for coking. The high-temperature waste gas generated after the raw gas in the heat recovery coke oven is combusted is discharged through the flue at the lower part of the oven body, a cooling channel is arranged between the flue at the lower part and the concrete of the basic top plate for cooling, so that the high-temperature waste gas is prevented from transmitting the temperature to the concrete, and high-temperature accidents are avoided. The cooling channel is communicated with the surrounding environment, and the cooling effect is achieved by air flowing in the cooling channel. However, because the length of the coke side of the coke oven is tens of meters, the cooling channel is small in size, and in actual production, air is difficult to flow, and the cooling effect is not obvious. Aiming at the characteristics of the heat recovery coke oven body structure, a new heat recovery coke oven cooling channel needs to be developed to reduce the temperature of the coke oven foundation roof concrete. Disclosure of Invention In order to overcome the defects in the prior art, the invention solves the technical problem of providing the heat recovery coke oven cooling channel, and the invention can fully utilize the chimney effect of the vertical channel at the resisting wall to attract the air entering the cooling channel from the machine coke side oven head to flow rapidly, thereby increasing the cooling effect. In order to achieve the above purpose, the invention is realized by adopting the following technical scheme: the heat recovery coke oven cooling channel comprises cooling channels which are arranged along the coke side of the coke oven machine in a long direction and are completely communicated, the cooling channels are arranged at intervals, the heat recovery coke oven cooling channel further comprises a plurality of transverse connecting channels which are perpendicular to the cooling channels and are intersected with the cooling channels, two ends of each transverse connecting channel are respectively connected with a vertical channel of a resistance wall area, and the vertical channels extend upwards to a furnace top chimney. The cooling channels can be multiple layers, each layer is separated by refractory bricks, and each layer is provided with a plurality of transverse connecting channels which are perpendicular to the cooling channels and are intersected with the cooling channels. The cross-sectional shape of the cooling channel is rectangular or portal. The vertical channel is disposed inside the resist wall or outside the resist wall. And an induced draft fan is arranged on the furnace top chimney. The heat recovery coke oven cooling channel is suitable for a vertical heat recovery coke oven or a horizontal heat recovery coke oven. Compared with the prior art, the invention has the beneficial effects that: 1) The cooling channels are arranged along the longitudinal direction of the coke side, are arranged at intervals, are intersected with the transverse communicating channels, and are respectively connected with the vertical channels in the resisting wall areas at two ends, so that air flows are respectively guided to the resisting walls at the two ends and then guided to the furnace top chimney along the vertical channels to be discharged into the environment. The invention can fully utilize the chimney effect of the vertical channel at the resisting wall to attract the air entering the cooling channel from the coke side furnace head to flow quickly, thereby increasing the cooling effect. 2) In the invention, the induced draft fan is additionally arranged at the chimney part of the furnace top, so that the air flow in the cooling channel is quickened, and the cooling effect is further improved. 3) The invention has simple integral structure and convenient construction, can realize the purpose of increasing the cooling effect of the cooling channel under the condition of not adding power and using no energy source by utilizing the chimney effect, and is economical and environment-friendly. Drawings The accompanying drawings, which a