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Heat-insulation water-sealing groove for coke dry quenching furnace and preparation method thereof

The technology of hot water sealing tank and dry quenching coke oven is applied in the field of coal chemical industry. , high deformation, low cost effect

Inactive Publication Date: 2008-04-30
SHAGANG GROUP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Another object of the present invention is to propose a method for preparing a heat-insulating tank for CDQ coke ovens with simple process, energy saving and environmental protection, and low production cost, so as to overcome the continuous casting heat-insulation tank existing in the prior art The tank is bulky, the preparation method is complicated, and the service life of the prepared heat insulation tank is short

Method used

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  • Heat-insulation water-sealing groove for coke dry quenching furnace and preparation method thereof
  • Heat-insulation water-sealing groove for coke dry quenching furnace and preparation method thereof

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Embodiment 1

[0028] Embodiment 1 As shown in Figure 1, the metal body of the heat-insulating heat-seal tank for CDQ coke ovens is divided into three parts: the inner skirt 3, the outer skirt 2 and the bottom plate 1, and a layer is arranged on the inner side of the inner skirt Casting layer 4 of fire-resistant and heat-insulating material.

[0029] The center of the bottom plate 1 is provided with a gas through hole 5, the inner skirt 3 is welded and fixed on the bottom plate on the outer edge of the gas through hole, the outer ring of the inner skirt is welded with an outer skirt 2, and the inner skirt and the outer skirt are cylindrical The structure, the inner skirt and the outer skirt are welded and fixed concentrically, the bottom plate, the inner skirt and the outer skirt are all ordinary A3 hot-rolled low-carbon steel plates, the thickness of which is about 3-5mm, and the inner side of the inner skirt is fixed. The refractory and heat-insulating casting layer 4 is a refractory and h...

Embodiment 2

[0032] Embodiment 2 As shown in Figure 2 and Figure 3, the metal body of the heat-insulating water seal tank for CDQ coke ovens is divided into three parts: the inner skirt 3, the outer skirt 2 and the bottom plate 1, and the inner side of the inner skirt A pouring layer 4 of fire-resistant and heat-insulating material is arranged close to it.

[0033] The center of the bottom plate is cut with a gas hole, the bottom plate on the outer edge of the gas hole is welded and fixed with an inner skirt, and the outer ring of the inner skirt is welded with an outer skirt, and the inner skirt and the outer skirt are welded by ordinary carbon steel plates The cylindrical structure, the inner skirt and the outer skirt are concentrically welded and fixed on the bottom plate. The bottom plate, the inner skirt and the outer skirt are made of ordinary carbon steel plates with a thickness of about 8-10mm. The fire-resistant and heat-insulating casting layer fixed on the inner side of the inne...

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Abstract

The invention relates to a thermal insulation water sealing slot used for a dry coke furnace and the preparation method thereof. The water sealing slot comprises a bottom plate, an air through hole arranged at the center of the bottom plate, and a saillant outer skirt edge and an inner skirt edge which are arranged on the periphery of the through hole. The invention is characterized in that the thermal insulation water sealing slot is formed by welding and fixing the components of the bottom plate, the outer skirt edge and the inner skirt edge, and a fire-resistant and thermal insulating material layer is arranged on the inner side of the inner skirt edge. The preparation method adopts a welding method, and the fire-resistant and thermal insulating material layer is formed by casting. The thickness of the wall is one-third of the original, and the stress bearing capability is four times of the original and can bear the damage of the expansion and contraction stress brought about by quick cold and quick hot, the annealing process is required before the operation, the stress bore by each welding opening cannot enlarge rapidly because of the overall deformation, the crack cannot be caused, and 50000 times of coke discharging can be ensured under normal operation condition. Meanwhile, the water sealing slot has simple preparation method, is time saving and labor-saving, has low production cost and is energy saving and environmental protective. The invention can be widely applied in the thermal insulation water sealing slot of the dry coke furnaces with various specifications.

Description

technical field [0001] The invention belongs to the technical field of coke dry quenching technology in the field of coal chemical industry, and in particular relates to an insulating water seal tank for coke ovens for dry quenching and a preparation method thereof. Background technique [0002] Dry coke quenching, referred to as dry coke quenching (CDQ), is a coke quenching method that uses inert gas to extinguish red hot coke relative to wet coke quenching. Compared with conventional wet coke quenching, coke dry quenching can not only recycle the sensible heat of red coke, but also improve coke quality, reduce costs, and reduce environmental pollution caused by coke quenching, so it has been widely used in the world recently. application. When CDQ is adopted, under normal working conditions, the air pressure in the CDQ oven is generally 300-1000Pa, and the temperature is in the range of 900-1000℃. The main components of the gas in the coke oven are flammable and explosive...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10B39/02C10B45/00
Inventor 张其
Owner SHAGANG GROUP
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